--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/res/js/videojs/video.es.js Wed Dec 11 10:17:08 2019 +0100
@@ -0,0 +1,44942 @@
+/**
+ * @license
+ * Video.js 7.6.6 <http://videojs.com/>
+ * Copyright Brightcove, Inc. <https://www.brightcove.com/>
+ * Available under Apache License Version 2.0
+ * <https://github.com/videojs/video.js/blob/master/LICENSE>
+ *
+ * Includes vtt.js <https://github.com/mozilla/vtt.js>
+ * Available under Apache License Version 2.0
+ * <https://github.com/mozilla/vtt.js/blob/master/LICENSE>
+ */
+
+import window$1 from 'global/window';
+import document from 'global/document';
+import safeParseTuple from 'safe-json-parse/tuple';
+import keycode from 'keycode';
+import XHR from 'xhr';
+import vtt from 'videojs-vtt.js';
+import URLToolkit from 'url-toolkit';
+import { Parser } from 'm3u8-parser';
+import { parse, parseUTCTiming } from 'mpd-parser';
+import mp4Inspector from 'mux.js/lib/tools/mp4-inspector';
+import mp4probe from 'mux.js/lib/mp4/probe';
+import CaptionParser from 'mux.js/lib/mp4/caption-parser';
+import tsInspector from 'mux.js/lib/tools/ts-inspector.js';
+import { Decrypter, AsyncStream, decrypt } from 'aes-decrypter';
+
+var version = "7.6.6";
+
+/**
+ * @file create-logger.js
+ * @module create-logger
+ */
+
+var history = [];
+/**
+ * Log messages to the console and history based on the type of message
+ *
+ * @private
+ * @param {string} type
+ * The name of the console method to use.
+ *
+ * @param {Array} args
+ * The arguments to be passed to the matching console method.
+ */
+
+var LogByTypeFactory = function LogByTypeFactory(name, log) {
+ return function (type, level, args) {
+ var lvl = log.levels[level];
+ var lvlRegExp = new RegExp("^(" + lvl + ")$");
+
+ if (type !== 'log') {
+ // Add the type to the front of the message when it's not "log".
+ args.unshift(type.toUpperCase() + ':');
+ } // Add console prefix after adding to history.
+
+
+ args.unshift(name + ':'); // Add a clone of the args at this point to history.
+
+ if (history) {
+ history.push([].concat(args));
+ } // If there's no console then don't try to output messages, but they will
+ // still be stored in history.
+
+
+ if (!window$1.console) {
+ return;
+ } // Was setting these once outside of this function, but containing them
+ // in the function makes it easier to test cases where console doesn't exist
+ // when the module is executed.
+
+
+ var fn = window$1.console[type];
+
+ if (!fn && type === 'debug') {
+ // Certain browsers don't have support for console.debug. For those, we
+ // should default to the closest comparable log.
+ fn = window$1.console.info || window$1.console.log;
+ } // Bail out if there's no console or if this type is not allowed by the
+ // current logging level.
+
+
+ if (!fn || !lvl || !lvlRegExp.test(type)) {
+ return;
+ }
+
+ fn[Array.isArray(args) ? 'apply' : 'call'](window$1.console, args);
+ };
+};
+
+function createLogger(name) {
+ // This is the private tracking variable for logging level.
+ var level = 'info'; // the curried logByType bound to the specific log and history
+
+ var logByType;
+ /**
+ * Logs plain debug messages. Similar to `console.log`.
+ *
+ * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)
+ * of our JSDoc template, we cannot properly document this as both a function
+ * and a namespace, so its function signature is documented here.
+ *
+ * #### Arguments
+ * ##### *args
+ * Mixed[]
+ *
+ * Any combination of values that could be passed to `console.log()`.
+ *
+ * #### Return Value
+ *
+ * `undefined`
+ *
+ * @namespace
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged.
+ */
+
+ var log = function log() {
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ logByType('log', level, args);
+ }; // This is the logByType helper that the logging methods below use
+
+
+ logByType = LogByTypeFactory(name, log);
+ /**
+ * Create a new sublogger which chains the old name to the new name.
+ *
+ * For example, doing `videojs.log.createLogger('player')` and then using that logger will log the following:
+ * ```js
+ * mylogger('foo');
+ * // > VIDEOJS: player: foo
+ * ```
+ *
+ * @param {string} name
+ * The name to add call the new logger
+ * @return {Object}
+ */
+
+ log.createLogger = function (subname) {
+ return createLogger(name + ': ' + subname);
+ };
+ /**
+ * Enumeration of available logging levels, where the keys are the level names
+ * and the values are `|`-separated strings containing logging methods allowed
+ * in that logging level. These strings are used to create a regular expression
+ * matching the function name being called.
+ *
+ * Levels provided by Video.js are:
+ *
+ * - `off`: Matches no calls. Any value that can be cast to `false` will have
+ * this effect. The most restrictive.
+ * - `all`: Matches only Video.js-provided functions (`debug`, `log`,
+ * `log.warn`, and `log.error`).
+ * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.
+ * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.
+ * - `warn`: Matches `log.warn` and `log.error` calls.
+ * - `error`: Matches only `log.error` calls.
+ *
+ * @type {Object}
+ */
+
+
+ log.levels = {
+ all: 'debug|log|warn|error',
+ off: '',
+ debug: 'debug|log|warn|error',
+ info: 'log|warn|error',
+ warn: 'warn|error',
+ error: 'error',
+ DEFAULT: level
+ };
+ /**
+ * Get or set the current logging level.
+ *
+ * If a string matching a key from {@link module:log.levels} is provided, acts
+ * as a setter.
+ *
+ * @param {string} [lvl]
+ * Pass a valid level to set a new logging level.
+ *
+ * @return {string}
+ * The current logging level.
+ */
+
+ log.level = function (lvl) {
+ if (typeof lvl === 'string') {
+ if (!log.levels.hasOwnProperty(lvl)) {
+ throw new Error("\"" + lvl + "\" in not a valid log level");
+ }
+
+ level = lvl;
+ }
+
+ return level;
+ };
+ /**
+ * Returns an array containing everything that has been logged to the history.
+ *
+ * This array is a shallow clone of the internal history record. However, its
+ * contents are _not_ cloned; so, mutating objects inside this array will
+ * mutate them in history.
+ *
+ * @return {Array}
+ */
+
+
+ log.history = function () {
+ return history ? [].concat(history) : [];
+ };
+ /**
+ * Allows you to filter the history by the given logger name
+ *
+ * @param {string} fname
+ * The name to filter by
+ *
+ * @return {Array}
+ * The filtered list to return
+ */
+
+
+ log.history.filter = function (fname) {
+ return (history || []).filter(function (historyItem) {
+ // if the first item in each historyItem includes `fname`, then it's a match
+ return new RegExp(".*" + fname + ".*").test(historyItem[0]);
+ });
+ };
+ /**
+ * Clears the internal history tracking, but does not prevent further history
+ * tracking.
+ */
+
+
+ log.history.clear = function () {
+ if (history) {
+ history.length = 0;
+ }
+ };
+ /**
+ * Disable history tracking if it is currently enabled.
+ */
+
+
+ log.history.disable = function () {
+ if (history !== null) {
+ history.length = 0;
+ history = null;
+ }
+ };
+ /**
+ * Enable history tracking if it is currently disabled.
+ */
+
+
+ log.history.enable = function () {
+ if (history === null) {
+ history = [];
+ }
+ };
+ /**
+ * Logs error messages. Similar to `console.error`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as an error
+ */
+
+
+ log.error = function () {
+ for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ return logByType('error', level, args);
+ };
+ /**
+ * Logs warning messages. Similar to `console.warn`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as a warning.
+ */
+
+
+ log.warn = function () {
+ for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ args[_key3] = arguments[_key3];
+ }
+
+ return logByType('warn', level, args);
+ };
+ /**
+ * Logs debug messages. Similar to `console.debug`, but may also act as a comparable
+ * log if `console.debug` is not available
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as debug.
+ */
+
+
+ log.debug = function () {
+ for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+ args[_key4] = arguments[_key4];
+ }
+
+ return logByType('debug', level, args);
+ };
+
+ return log;
+}
+
+/**
+ * @file log.js
+ * @module log
+ */
+var log = createLogger('VIDEOJS');
+var createLogger$1 = log.createLogger;
+
+/**
+ * @file obj.js
+ * @module obj
+ */
+
+/**
+ * @callback obj:EachCallback
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ */
+
+/**
+ * @callback obj:ReduceCallback
+ *
+ * @param {Mixed} accum
+ * The value that is accumulating over the reduce loop.
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ *
+ * @return {Mixed}
+ * The new accumulated value.
+ */
+var toString = Object.prototype.toString;
+/**
+ * Get the keys of an Object
+ *
+ * @param {Object}
+ * The Object to get the keys from
+ *
+ * @return {string[]}
+ * An array of the keys from the object. Returns an empty array if the
+ * object passed in was invalid or had no keys.
+ *
+ * @private
+ */
+
+var keys = function keys(object) {
+ return isObject(object) ? Object.keys(object) : [];
+};
+/**
+ * Array-like iteration for objects.
+ *
+ * @param {Object} object
+ * The object to iterate over
+ *
+ * @param {obj:EachCallback} fn
+ * The callback function which is called for each key in the object.
+ */
+
+
+function each(object, fn) {
+ keys(object).forEach(function (key) {
+ return fn(object[key], key);
+ });
+}
+/**
+ * Array-like reduce for objects.
+ *
+ * @param {Object} object
+ * The Object that you want to reduce.
+ *
+ * @param {Function} fn
+ * A callback function which is called for each key in the object. It
+ * receives the accumulated value and the per-iteration value and key
+ * as arguments.
+ *
+ * @param {Mixed} [initial = 0]
+ * Starting value
+ *
+ * @return {Mixed}
+ * The final accumulated value.
+ */
+
+function reduce(object, fn, initial) {
+ if (initial === void 0) {
+ initial = 0;
+ }
+
+ return keys(object).reduce(function (accum, key) {
+ return fn(accum, object[key], key);
+ }, initial);
+}
+/**
+ * Object.assign-style object shallow merge/extend.
+ *
+ * @param {Object} target
+ * @param {Object} ...sources
+ * @return {Object}
+ */
+
+function assign(target) {
+ for (var _len = arguments.length, sources = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+ sources[_key - 1] = arguments[_key];
+ }
+
+ if (Object.assign) {
+ return Object.assign.apply(Object, [target].concat(sources));
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ target[key] = value;
+ });
+ });
+ return target;
+}
+/**
+ * Returns whether a value is an object of any kind - including DOM nodes,
+ * arrays, regular expressions, etc. Not functions, though.
+ *
+ * This avoids the gotcha where using `typeof` on a `null` value
+ * results in `'object'`.
+ *
+ * @param {Object} value
+ * @return {boolean}
+ */
+
+function isObject(value) {
+ return !!value && typeof value === 'object';
+}
+/**
+ * Returns whether an object appears to be a "plain" object - that is, a
+ * direct instance of `Object`.
+ *
+ * @param {Object} value
+ * @return {boolean}
+ */
+
+function isPlain(value) {
+ return isObject(value) && toString.call(value) === '[object Object]' && value.constructor === Object;
+}
+
+/**
+ * @file computed-style.js
+ * @module computed-style
+ */
+/**
+ * A safe getComputedStyle.
+ *
+ * This is needed because in Firefox, if the player is loaded in an iframe with
+ * `display:none`, then `getComputedStyle` returns `null`, so, we do a
+ * null-check to make sure that the player doesn't break in these cases.
+ *
+ * @function
+ * @param {Element} el
+ * The element you want the computed style of
+ *
+ * @param {string} prop
+ * The property name you want
+ *
+ * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+ */
+
+function computedStyle(el, prop) {
+ if (!el || !prop) {
+ return '';
+ }
+
+ if (typeof window$1.getComputedStyle === 'function') {
+ var computedStyleValue = window$1.getComputedStyle(el);
+ return computedStyleValue ? computedStyleValue.getPropertyValue(prop) || computedStyleValue[prop] : '';
+ }
+
+ return '';
+}
+
+/**
+ * @file dom.js
+ * @module dom
+ */
+/**
+ * Detect if a value is a string with any non-whitespace characters.
+ *
+ * @private
+ * @param {string} str
+ * The string to check
+ *
+ * @return {boolean}
+ * Will be `true` if the string is non-blank, `false` otherwise.
+ *
+ */
+
+function isNonBlankString(str) {
+ return typeof str === 'string' && /\S/.test(str);
+}
+/**
+ * Throws an error if the passed string has whitespace. This is used by
+ * class methods to be relatively consistent with the classList API.
+ *
+ * @private
+ * @param {string} str
+ * The string to check for whitespace.
+ *
+ * @throws {Error}
+ * Throws an error if there is whitespace in the string.
+ */
+
+
+function throwIfWhitespace(str) {
+ if (/\s/.test(str)) {
+ throw new Error('class has illegal whitespace characters');
+ }
+}
+/**
+ * Produce a regular expression for matching a className within an elements className.
+ *
+ * @private
+ * @param {string} className
+ * The className to generate the RegExp for.
+ *
+ * @return {RegExp}
+ * The RegExp that will check for a specific `className` in an elements
+ * className.
+ */
+
+
+function classRegExp(className) {
+ return new RegExp('(^|\\s)' + className + '($|\\s)');
+}
+/**
+ * Whether the current DOM interface appears to be real (i.e. not simulated).
+ *
+ * @return {boolean}
+ * Will be `true` if the DOM appears to be real, `false` otherwise.
+ */
+
+
+function isReal() {
+ // Both document and window will never be undefined thanks to `global`.
+ return document === window$1.document;
+}
+/**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @param {Mixed} value
+ * The value to check.
+ *
+ * @return {boolean}
+ * Will be `true` if the value is a DOM element, `false` otherwise.
+ */
+
+function isEl(value) {
+ return isObject(value) && value.nodeType === 1;
+}
+/**
+ * Determines if the current DOM is embedded in an iframe.
+ *
+ * @return {boolean}
+ * Will be `true` if the DOM is embedded in an iframe, `false`
+ * otherwise.
+ */
+
+function isInFrame() {
+ // We need a try/catch here because Safari will throw errors when attempting
+ // to get either `parent` or `self`
+ try {
+ return window$1.parent !== window$1.self;
+ } catch (x) {
+ return true;
+ }
+}
+/**
+ * Creates functions to query the DOM using a given method.
+ *
+ * @private
+ * @param {string} method
+ * The method to create the query with.
+ *
+ * @return {Function}
+ * The query method
+ */
+
+function createQuerier(method) {
+ return function (selector, context) {
+ if (!isNonBlankString(selector)) {
+ return document[method](null);
+ }
+
+ if (isNonBlankString(context)) {
+ context = document.querySelector(context);
+ }
+
+ var ctx = isEl(context) ? context : document;
+ return ctx[method] && ctx[method](selector);
+ };
+}
+/**
+ * Creates an element and applies properties, attributes, and inserts content.
+ *
+ * @param {string} [tagName='div']
+ * Name of tag to be created.
+ *
+ * @param {Object} [properties={}]
+ * Element properties to be applied.
+ *
+ * @param {Object} [attributes={}]
+ * Element attributes to be applied.
+ *
+ * @param {module:dom~ContentDescriptor} content
+ * A content descriptor object.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+function createEl(tagName, properties, attributes, content) {
+ if (tagName === void 0) {
+ tagName = 'div';
+ }
+
+ if (properties === void 0) {
+ properties = {};
+ }
+
+ if (attributes === void 0) {
+ attributes = {};
+ }
+
+ var el = document.createElement(tagName);
+ Object.getOwnPropertyNames(properties).forEach(function (propName) {
+ var val = properties[propName]; // See #2176
+ // We originally were accepting both properties and attributes in the
+ // same object, but that doesn't work so well.
+
+ if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') {
+ log.warn('Setting attributes in the second argument of createEl()\n' + 'has been deprecated. Use the third argument instead.\n' + ("createEl(type, properties, attributes). Attempting to set " + propName + " to " + val + "."));
+ el.setAttribute(propName, val); // Handle textContent since it's not supported everywhere and we have a
+ // method for it.
+ } else if (propName === 'textContent') {
+ textContent(el, val);
+ } else {
+ el[propName] = val;
+ }
+ });
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ el.setAttribute(attrName, attributes[attrName]);
+ });
+
+ if (content) {
+ appendContent(el, content);
+ }
+
+ return el;
+}
+/**
+ * Injects text into an element, replacing any existing contents entirely.
+ *
+ * @param {Element} el
+ * The element to add text content into
+ *
+ * @param {string} text
+ * The text content to add.
+ *
+ * @return {Element}
+ * The element with added text content.
+ */
+
+function textContent(el, text) {
+ if (typeof el.textContent === 'undefined') {
+ el.innerText = text;
+ } else {
+ el.textContent = text;
+ }
+
+ return el;
+}
+/**
+ * Insert an element as the first child node of another
+ *
+ * @param {Element} child
+ * Element to insert
+ *
+ * @param {Element} parent
+ * Element to insert child into
+ */
+
+function prependTo(child, parent) {
+ if (parent.firstChild) {
+ parent.insertBefore(child, parent.firstChild);
+ } else {
+ parent.appendChild(child);
+ }
+}
+/**
+ * Check if an element has a class name.
+ *
+ * @param {Element} element
+ * Element to check
+ *
+ * @param {string} classToCheck
+ * Class name to check for
+ *
+ * @return {boolean}
+ * Will be `true` if the element has a class, `false` otherwise.
+ *
+ * @throws {Error}
+ * Throws an error if `classToCheck` has white space.
+ */
+
+function hasClass(element, classToCheck) {
+ throwIfWhitespace(classToCheck);
+
+ if (element.classList) {
+ return element.classList.contains(classToCheck);
+ }
+
+ return classRegExp(classToCheck).test(element.className);
+}
+/**
+ * Add a class name to an element.
+ *
+ * @param {Element} element
+ * Element to add class name to.
+ *
+ * @param {string} classToAdd
+ * Class name to add.
+ *
+ * @return {Element}
+ * The DOM element with the added class name.
+ */
+
+function addClass(element, classToAdd) {
+ if (element.classList) {
+ element.classList.add(classToAdd); // Don't need to `throwIfWhitespace` here because `hasElClass` will do it
+ // in the case of classList not being supported.
+ } else if (!hasClass(element, classToAdd)) {
+ element.className = (element.className + ' ' + classToAdd).trim();
+ }
+
+ return element;
+}
+/**
+ * Remove a class name from an element.
+ *
+ * @param {Element} element
+ * Element to remove a class name from.
+ *
+ * @param {string} classToRemove
+ * Class name to remove
+ *
+ * @return {Element}
+ * The DOM element with class name removed.
+ */
+
+function removeClass(element, classToRemove) {
+ if (element.classList) {
+ element.classList.remove(classToRemove);
+ } else {
+ throwIfWhitespace(classToRemove);
+ element.className = element.className.split(/\s+/).filter(function (c) {
+ return c !== classToRemove;
+ }).join(' ');
+ }
+
+ return element;
+}
+/**
+ * The callback definition for toggleClass.
+ *
+ * @callback module:dom~PredicateCallback
+ * @param {Element} element
+ * The DOM element of the Component.
+ *
+ * @param {string} classToToggle
+ * The `className` that wants to be toggled
+ *
+ * @return {boolean|undefined}
+ * If `true` is returned, the `classToToggle` will be added to the
+ * `element`. If `false`, the `classToToggle` will be removed from
+ * the `element`. If `undefined`, the callback will be ignored.
+ */
+
+/**
+ * Adds or removes a class name to/from an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @param {Element} element
+ * The element to toggle a class name on.
+ *
+ * @param {string} classToToggle
+ * The class that should be toggled.
+ *
+ * @param {boolean|module:dom~PredicateCallback} [predicate]
+ * See the return value for {@link module:dom~PredicateCallback}
+ *
+ * @return {Element}
+ * The element with a class that has been toggled.
+ */
+
+function toggleClass(element, classToToggle, predicate) {
+ // This CANNOT use `classList` internally because IE11 does not support the
+ // second parameter to the `classList.toggle()` method! Which is fine because
+ // `classList` will be used by the add/remove functions.
+ var has = hasClass(element, classToToggle);
+
+ if (typeof predicate === 'function') {
+ predicate = predicate(element, classToToggle);
+ }
+
+ if (typeof predicate !== 'boolean') {
+ predicate = !has;
+ } // If the necessary class operation matches the current state of the
+ // element, no action is required.
+
+
+ if (predicate === has) {
+ return;
+ }
+
+ if (predicate) {
+ addClass(element, classToToggle);
+ } else {
+ removeClass(element, classToToggle);
+ }
+
+ return element;
+}
+/**
+ * Apply attributes to an HTML element.
+ *
+ * @param {Element} el
+ * Element to add attributes to.
+ *
+ * @param {Object} [attributes]
+ * Attributes to be applied.
+ */
+
+function setAttributes(el, attributes) {
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ var attrValue = attributes[attrName];
+
+ if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {
+ el.removeAttribute(attrName);
+ } else {
+ el.setAttribute(attrName, attrValue === true ? '' : attrValue);
+ }
+ });
+}
+/**
+ * Get an element's attribute values, as defined on the HTML tag.
+ *
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute.
+ *
+ * @param {Element} tag
+ * Element from which to get tag attributes.
+ *
+ * @return {Object}
+ * All attributes of the element. Boolean attributes will be `true` or
+ * `false`, others will be strings.
+ */
+
+function getAttributes(tag) {
+ var obj = {}; // known boolean attributes
+ // we can check for matching boolean properties, but not all browsers
+ // and not all tags know about these attributes, so, we still want to check them manually
+
+ var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';
+
+ if (tag && tag.attributes && tag.attributes.length > 0) {
+ var attrs = tag.attributes;
+
+ for (var i = attrs.length - 1; i >= 0; i--) {
+ var attrName = attrs[i].name;
+ var attrVal = attrs[i].value; // check for known booleans
+ // the matching element property will return a value for typeof
+
+ if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {
+ // the value of an included boolean attribute is typically an empty
+ // string ('') which would equal false if we just check for a false value.
+ // we also don't want support bad code like autoplay='false'
+ attrVal = attrVal !== null ? true : false;
+ }
+
+ obj[attrName] = attrVal;
+ }
+ }
+
+ return obj;
+}
+/**
+ * Get the value of an element's attribute.
+ *
+ * @param {Element} el
+ * A DOM element.
+ *
+ * @param {string} attribute
+ * Attribute to get the value of.
+ *
+ * @return {string}
+ * The value of the attribute.
+ */
+
+function getAttribute(el, attribute) {
+ return el.getAttribute(attribute);
+}
+/**
+ * Set the value of an element's attribute.
+ *
+ * @param {Element} el
+ * A DOM element.
+ *
+ * @param {string} attribute
+ * Attribute to set.
+ *
+ * @param {string} value
+ * Value to set the attribute to.
+ */
+
+function setAttribute(el, attribute, value) {
+ el.setAttribute(attribute, value);
+}
+/**
+ * Remove an element's attribute.
+ *
+ * @param {Element} el
+ * A DOM element.
+ *
+ * @param {string} attribute
+ * Attribute to remove.
+ */
+
+function removeAttribute(el, attribute) {
+ el.removeAttribute(attribute);
+}
+/**
+ * Attempt to block the ability to select text.
+ */
+
+function blockTextSelection() {
+ document.body.focus();
+
+ document.onselectstart = function () {
+ return false;
+ };
+}
+/**
+ * Turn off text selection blocking.
+ */
+
+function unblockTextSelection() {
+ document.onselectstart = function () {
+ return true;
+ };
+}
+/**
+ * Identical to the native `getBoundingClientRect` function, but ensures that
+ * the method is supported at all (it is in all browsers we claim to support)
+ * and that the element is in the DOM before continuing.
+ *
+ * This wrapper function also shims properties which are not provided by some
+ * older browsers (namely, IE8).
+ *
+ * Additionally, some browsers do not support adding properties to a
+ * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard
+ * properties (except `x` and `y` which are not widely supported). This helps
+ * avoid implementations where keys are non-enumerable.
+ *
+ * @param {Element} el
+ * Element whose `ClientRect` we want to calculate.
+ *
+ * @return {Object|undefined}
+ * Always returns a plain object - or `undefined` if it cannot.
+ */
+
+function getBoundingClientRect(el) {
+ if (el && el.getBoundingClientRect && el.parentNode) {
+ var rect = el.getBoundingClientRect();
+ var result = {};
+ ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) {
+ if (rect[k] !== undefined) {
+ result[k] = rect[k];
+ }
+ });
+
+ if (!result.height) {
+ result.height = parseFloat(computedStyle(el, 'height'));
+ }
+
+ if (!result.width) {
+ result.width = parseFloat(computedStyle(el, 'width'));
+ }
+
+ return result;
+ }
+}
+/**
+ * Represents the position of a DOM element on the page.
+ *
+ * @typedef {Object} module:dom~Position
+ *
+ * @property {number} left
+ * Pixels to the left.
+ *
+ * @property {number} top
+ * Pixels from the top.
+ */
+
+/**
+ * Get the position of an element in the DOM.
+ *
+ * Uses `getBoundingClientRect` technique from John Resig.
+ *
+ * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/
+ *
+ * @param {Element} el
+ * Element from which to get offset.
+ *
+ * @return {module:dom~Position}
+ * The position of the element that was passed in.
+ */
+
+function findPosition(el) {
+ var box;
+
+ if (el.getBoundingClientRect && el.parentNode) {
+ box = el.getBoundingClientRect();
+ }
+
+ if (!box) {
+ return {
+ left: 0,
+ top: 0
+ };
+ }
+
+ var docEl = document.documentElement;
+ var body = document.body;
+ var clientLeft = docEl.clientLeft || body.clientLeft || 0;
+ var scrollLeft = window$1.pageXOffset || body.scrollLeft;
+ var left = box.left + scrollLeft - clientLeft;
+ var clientTop = docEl.clientTop || body.clientTop || 0;
+ var scrollTop = window$1.pageYOffset || body.scrollTop;
+ var top = box.top + scrollTop - clientTop; // Android sometimes returns slightly off decimal values, so need to round
+
+ return {
+ left: Math.round(left),
+ top: Math.round(top)
+ };
+}
+/**
+ * Represents x and y coordinates for a DOM element or mouse pointer.
+ *
+ * @typedef {Object} module:dom~Coordinates
+ *
+ * @property {number} x
+ * x coordinate in pixels
+ *
+ * @property {number} y
+ * y coordinate in pixels
+ */
+
+/**
+ * Get the pointer position within an element.
+ *
+ * The base on the coordinates are the bottom left of the element.
+ *
+ * @param {Element} el
+ * Element on which to get the pointer position on.
+ *
+ * @param {EventTarget~Event} event
+ * Event object.
+ *
+ * @return {module:dom~Coordinates}
+ * A coordinates object corresponding to the mouse position.
+ *
+ */
+
+function getPointerPosition(el, event) {
+ var position = {};
+ var box = findPosition(el);
+ var boxW = el.offsetWidth;
+ var boxH = el.offsetHeight;
+ var boxY = box.top;
+ var boxX = box.left;
+ var pageY = event.pageY;
+ var pageX = event.pageX;
+
+ if (event.changedTouches) {
+ pageX = event.changedTouches[0].pageX;
+ pageY = event.changedTouches[0].pageY;
+ }
+
+ position.y = Math.max(0, Math.min(1, (boxY - pageY + boxH) / boxH));
+ position.x = Math.max(0, Math.min(1, (pageX - boxX) / boxW));
+ return position;
+}
+/**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @param {Mixed} value
+ * Check if this value is a text node.
+ *
+ * @return {boolean}
+ * Will be `true` if the value is a text node, `false` otherwise.
+ */
+
+function isTextNode(value) {
+ return isObject(value) && value.nodeType === 3;
+}
+/**
+ * Empties the contents of an element.
+ *
+ * @param {Element} el
+ * The element to empty children from
+ *
+ * @return {Element}
+ * The element with no children
+ */
+
+function emptyEl(el) {
+ while (el.firstChild) {
+ el.removeChild(el.firstChild);
+ }
+
+ return el;
+}
+/**
+ * This is a mixed value that describes content to be injected into the DOM
+ * via some method. It can be of the following types:
+ *
+ * Type | Description
+ * -----------|-------------
+ * `string` | The value will be normalized into a text node.
+ * `Element` | The value will be accepted as-is.
+ * `TextNode` | The value will be accepted as-is.
+ * `Array` | A one-dimensional array of strings, elements, text nodes, or functions. These functions should return a string, element, or text node (any other return value, like an array, will be ignored).
+ * `Function` | A function, which is expected to return a string, element, text node, or array - any of the other possible values described above. This means that a content descriptor could be a function that returns an array of functions, but those second-level functions must return strings, elements, or text nodes.
+ *
+ * @typedef {string|Element|TextNode|Array|Function} module:dom~ContentDescriptor
+ */
+
+/**
+ * Normalizes content for eventual insertion into the DOM.
+ *
+ * This allows a wide range of content definition methods, but helps protect
+ * from falling into the trap of simply writing to `innerHTML`, which could
+ * be an XSS concern.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * @param {module:dom~ContentDescriptor} content
+ * A content descriptor value.
+ *
+ * @return {Array}
+ * All of the content that was passed in, normalized to an array of
+ * elements or text nodes.
+ */
+
+function normalizeContent(content) {
+ // First, invoke content if it is a function. If it produces an array,
+ // that needs to happen before normalization.
+ if (typeof content === 'function') {
+ content = content();
+ } // Next up, normalize to an array, so one or many items can be normalized,
+ // filtered, and returned.
+
+
+ return (Array.isArray(content) ? content : [content]).map(function (value) {
+ // First, invoke value if it is a function to produce a new value,
+ // which will be subsequently normalized to a Node of some kind.
+ if (typeof value === 'function') {
+ value = value();
+ }
+
+ if (isEl(value) || isTextNode(value)) {
+ return value;
+ }
+
+ if (typeof value === 'string' && /\S/.test(value)) {
+ return document.createTextNode(value);
+ }
+ }).filter(function (value) {
+ return value;
+ });
+}
+/**
+ * Normalizes and appends content to an element.
+ *
+ * @param {Element} el
+ * Element to append normalized content to.
+ *
+ * @param {module:dom~ContentDescriptor} content
+ * A content descriptor value.
+ *
+ * @return {Element}
+ * The element with appended normalized content.
+ */
+
+function appendContent(el, content) {
+ normalizeContent(content).forEach(function (node) {
+ return el.appendChild(node);
+ });
+ return el;
+}
+/**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * @param {Element} el
+ * Element to insert normalized content into.
+ *
+ * @param {module:dom~ContentDescriptor} content
+ * A content descriptor value.
+ *
+ * @return {Element}
+ * The element with inserted normalized content.
+ */
+
+function insertContent(el, content) {
+ return appendContent(emptyEl(el), content);
+}
+/**
+ * Check if an event was a single left click.
+ *
+ * @param {EventTarget~Event} event
+ * Event object.
+ *
+ * @return {boolean}
+ * Will be `true` if a single left click, `false` otherwise.
+ */
+
+function isSingleLeftClick(event) {
+ // Note: if you create something draggable, be sure to
+ // call it on both `mousedown` and `mousemove` event,
+ // otherwise `mousedown` should be enough for a button
+ if (event.button === undefined && event.buttons === undefined) {
+ // Why do we need `buttons` ?
+ // Because, middle mouse sometimes have this:
+ // e.button === 0 and e.buttons === 4
+ // Furthermore, we want to prevent combination click, something like
+ // HOLD middlemouse then left click, that would be
+ // e.button === 0, e.buttons === 5
+ // just `button` is not gonna work
+ // Alright, then what this block does ?
+ // this is for chrome `simulate mobile devices`
+ // I want to support this as well
+ return true;
+ }
+
+ if (event.button === 0 && event.buttons === undefined) {
+ // Touch screen, sometimes on some specific device, `buttons`
+ // doesn't have anything (safari on ios, blackberry...)
+ return true;
+ } // `mouseup` event on a single left click has
+ // `button` and `buttons` equal to 0
+
+
+ if (event.type === 'mouseup' && event.button === 0 && event.buttons === 0) {
+ return true;
+ }
+
+ if (event.button !== 0 || event.buttons !== 1) {
+ // This is the reason we have those if else block above
+ // if any special case we can catch and let it slide
+ // we do it above, when get to here, this definitely
+ // is-not-left-click
+ return false;
+ }
+
+ return true;
+}
+/**
+ * Finds a single DOM element matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {Element|null}
+ * The element that was found or null.
+ */
+
+var $ = createQuerier('querySelector');
+/**
+ * Finds a all DOM elements matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {NodeList}
+ * A element list of elements that were found. Will be empty if none
+ * were found.
+ *
+ */
+
+var $$ = createQuerier('querySelectorAll');
+
+var Dom = /*#__PURE__*/Object.freeze({
+ isReal: isReal,
+ isEl: isEl,
+ isInFrame: isInFrame,
+ createEl: createEl,
+ textContent: textContent,
+ prependTo: prependTo,
+ hasClass: hasClass,
+ addClass: addClass,
+ removeClass: removeClass,
+ toggleClass: toggleClass,
+ setAttributes: setAttributes,
+ getAttributes: getAttributes,
+ getAttribute: getAttribute,
+ setAttribute: setAttribute,
+ removeAttribute: removeAttribute,
+ blockTextSelection: blockTextSelection,
+ unblockTextSelection: unblockTextSelection,
+ getBoundingClientRect: getBoundingClientRect,
+ findPosition: findPosition,
+ getPointerPosition: getPointerPosition,
+ isTextNode: isTextNode,
+ emptyEl: emptyEl,
+ normalizeContent: normalizeContent,
+ appendContent: appendContent,
+ insertContent: insertContent,
+ isSingleLeftClick: isSingleLeftClick,
+ $: $,
+ $$: $$
+});
+
+/**
+ * @file setup.js - Functions for setting up a player without
+ * user interaction based on the data-setup `attribute` of the video tag.
+ *
+ * @module setup
+ */
+var _windowLoaded = false;
+var videojs;
+/**
+ * Set up any tags that have a data-setup `attribute` when the player is started.
+ */
+
+var autoSetup = function autoSetup() {
+ // Protect against breakage in non-browser environments and check global autoSetup option.
+ if (!isReal() || videojs.options.autoSetup === false) {
+ return;
+ }
+
+ var vids = Array.prototype.slice.call(document.getElementsByTagName('video'));
+ var audios = Array.prototype.slice.call(document.getElementsByTagName('audio'));
+ var divs = Array.prototype.slice.call(document.getElementsByTagName('video-js'));
+ var mediaEls = vids.concat(audios, divs); // Check if any media elements exist
+
+ if (mediaEls && mediaEls.length > 0) {
+ for (var i = 0, e = mediaEls.length; i < e; i++) {
+ var mediaEl = mediaEls[i]; // Check if element exists, has getAttribute func.
+
+ if (mediaEl && mediaEl.getAttribute) {
+ // Make sure this player hasn't already been set up.
+ if (mediaEl.player === undefined) {
+ var options = mediaEl.getAttribute('data-setup'); // Check if data-setup attr exists.
+ // We only auto-setup if they've added the data-setup attr.
+
+ if (options !== null) {
+ // Create new video.js instance.
+ videojs(mediaEl);
+ }
+ } // If getAttribute isn't defined, we need to wait for the DOM.
+
+ } else {
+ autoSetupTimeout(1);
+ break;
+ }
+ } // No videos were found, so keep looping unless page is finished loading.
+
+ } else if (!_windowLoaded) {
+ autoSetupTimeout(1);
+ }
+};
+/**
+ * Wait until the page is loaded before running autoSetup. This will be called in
+ * autoSetup if `hasLoaded` returns false.
+ *
+ * @param {number} wait
+ * How long to wait in ms
+ *
+ * @param {module:videojs} [vjs]
+ * The videojs library function
+ */
+
+
+function autoSetupTimeout(wait, vjs) {
+ if (vjs) {
+ videojs = vjs;
+ }
+
+ window$1.setTimeout(autoSetup, wait);
+}
+/**
+ * Used to set the internal tracking of window loaded state to true.
+ *
+ * @private
+ */
+
+
+function setWindowLoaded() {
+ _windowLoaded = true;
+ window$1.removeEventListener('load', setWindowLoaded);
+}
+
+if (isReal()) {
+ if (document.readyState === 'complete') {
+ setWindowLoaded();
+ } else {
+ /**
+ * Listen for the load event on window, and set _windowLoaded to true.
+ *
+ * We use a standard event listener here to avoid incrementing the GUID
+ * before any players are created.
+ *
+ * @listens load
+ */
+ window$1.addEventListener('load', setWindowLoaded);
+ }
+}
+
+/**
+ * @file stylesheet.js
+ * @module stylesheet
+ */
+/**
+ * Create a DOM syle element given a className for it.
+ *
+ * @param {string} className
+ * The className to add to the created style element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+var createStyleElement = function createStyleElement(className) {
+ var style = document.createElement('style');
+ style.className = className;
+ return style;
+};
+/**
+ * Add text to a DOM element.
+ *
+ * @param {Element} el
+ * The Element to add text content to.
+ *
+ * @param {string} content
+ * The text to add to the element.
+ */
+
+var setTextContent = function setTextContent(el, content) {
+ if (el.styleSheet) {
+ el.styleSheet.cssText = content;
+ } else {
+ el.textContent = content;
+ }
+};
+
+/**
+ * @file guid.js
+ * @module guid
+ */
+// Default value for GUIDs. This allows us to reset the GUID counter in tests.
+//
+// The initial GUID is 3 because some users have come to rely on the first
+// default player ID ending up as `vjs_video_3`.
+//
+// See: https://github.com/videojs/video.js/pull/6216
+var _initialGuid = 3;
+/**
+ * Unique ID for an element or function
+ *
+ * @type {Number}
+ */
+
+var _guid = _initialGuid;
+/**
+ * Get a unique auto-incrementing ID by number that has not been returned before.
+ *
+ * @return {number}
+ * A new unique ID.
+ */
+
+function newGUID() {
+ return _guid++;
+}
+
+/**
+ * @file dom-data.js
+ * @module dom-data
+ */
+var FakeWeakMap;
+
+if (!window$1.WeakMap) {
+ FakeWeakMap =
+ /*#__PURE__*/
+ function () {
+ function FakeWeakMap() {
+ this.vdata = 'vdata' + Math.floor(window$1.performance && window$1.performance.now() || Date.now());
+ this.data = {};
+ }
+
+ var _proto = FakeWeakMap.prototype;
+
+ _proto.set = function set(key, value) {
+ var access = key[this.vdata] || newGUID();
+
+ if (!key[this.vdata]) {
+ key[this.vdata] = access;
+ }
+
+ this.data[access] = value;
+ return this;
+ };
+
+ _proto.get = function get(key) {
+ var access = key[this.vdata]; // we have data, return it
+
+ if (access) {
+ return this.data[access];
+ } // we don't have data, return nothing.
+ // return undefined explicitly as that's the contract for this method
+
+
+ log('We have no data for this element', key);
+ return undefined;
+ };
+
+ _proto.has = function has(key) {
+ var access = key[this.vdata];
+ return access in this.data;
+ };
+
+ _proto["delete"] = function _delete(key) {
+ var access = key[this.vdata];
+
+ if (access) {
+ delete this.data[access];
+ delete key[this.vdata];
+ }
+ };
+
+ return FakeWeakMap;
+ }();
+}
+/**
+ * Element Data Store.
+ *
+ * Allows for binding data to an element without putting it directly on the
+ * element. Ex. Event listeners are stored here.
+ * (also from jsninja.com, slightly modified and updated for closure compiler)
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+var DomData = window$1.WeakMap ? new WeakMap() : new FakeWeakMap();
+
+/**
+ * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)
+ * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)
+ * This should work very similarly to jQuery's events, however it's based off the book version which isn't as
+ * robust as jquery's, so there's probably some differences.
+ *
+ * @file events.js
+ * @module events
+ */
+/**
+ * Clean up the listener cache and dispatchers
+ *
+ * @param {Element|Object} elem
+ * Element to clean up
+ *
+ * @param {string} type
+ * Type of event to clean up
+ */
+
+function _cleanUpEvents(elem, type) {
+ if (!DomData.has(elem)) {
+ return;
+ }
+
+ var data = DomData.get(elem); // Remove the events of a particular type if there are none left
+
+ if (data.handlers[type].length === 0) {
+ delete data.handlers[type]; // data.handlers[type] = null;
+ // Setting to null was causing an error with data.handlers
+ // Remove the meta-handler from the element
+
+ if (elem.removeEventListener) {
+ elem.removeEventListener(type, data.dispatcher, false);
+ } else if (elem.detachEvent) {
+ elem.detachEvent('on' + type, data.dispatcher);
+ }
+ } // Remove the events object if there are no types left
+
+
+ if (Object.getOwnPropertyNames(data.handlers).length <= 0) {
+ delete data.handlers;
+ delete data.dispatcher;
+ delete data.disabled;
+ } // Finally remove the element data if there is no data left
+
+
+ if (Object.getOwnPropertyNames(data).length === 0) {
+ DomData["delete"](elem);
+ }
+}
+/**
+ * Loops through an array of event types and calls the requested method for each type.
+ *
+ * @param {Function} fn
+ * The event method we want to use.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} callback
+ * Event listener.
+ */
+
+
+function _handleMultipleEvents(fn, elem, types, callback) {
+ types.forEach(function (type) {
+ // Call the event method for each one of the types
+ fn(elem, type, callback);
+ });
+}
+/**
+ * Fix a native event to have standard property values
+ *
+ * @param {Object} event
+ * Event object to fix.
+ *
+ * @return {Object}
+ * Fixed event object.
+ */
+
+
+function fixEvent(event) {
+ function returnTrue() {
+ return true;
+ }
+
+ function returnFalse() {
+ return false;
+ } // Test if fixing up is needed
+ // Used to check if !event.stopPropagation instead of isPropagationStopped
+ // But native events return true for stopPropagation, but don't have
+ // other expected methods like isPropagationStopped. Seems to be a problem
+ // with the Javascript Ninja code. So we're just overriding all events now.
+
+
+ if (!event || !event.isPropagationStopped) {
+ var old = event || window$1.event;
+ event = {}; // Clone the old object so that we can modify the values event = {};
+ // IE8 Doesn't like when you mess with native event properties
+ // Firefox returns false for event.hasOwnProperty('type') and other props
+ // which makes copying more difficult.
+ // TODO: Probably best to create a whitelist of event props
+
+ for (var key in old) {
+ // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y
+ // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation
+ // and webkitMovementX/Y
+ if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY') {
+ // Chrome 32+ warns if you try to copy deprecated returnValue, but
+ // we still want to if preventDefault isn't supported (IE8).
+ if (!(key === 'returnValue' && old.preventDefault)) {
+ event[key] = old[key];
+ }
+ }
+ } // The event occurred on this element
+
+
+ if (!event.target) {
+ event.target = event.srcElement || document;
+ } // Handle which other element the event is related to
+
+
+ if (!event.relatedTarget) {
+ event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;
+ } // Stop the default browser action
+
+
+ event.preventDefault = function () {
+ if (old.preventDefault) {
+ old.preventDefault();
+ }
+
+ event.returnValue = false;
+ old.returnValue = false;
+ event.defaultPrevented = true;
+ };
+
+ event.defaultPrevented = false; // Stop the event from bubbling
+
+ event.stopPropagation = function () {
+ if (old.stopPropagation) {
+ old.stopPropagation();
+ }
+
+ event.cancelBubble = true;
+ old.cancelBubble = true;
+ event.isPropagationStopped = returnTrue;
+ };
+
+ event.isPropagationStopped = returnFalse; // Stop the event from bubbling and executing other handlers
+
+ event.stopImmediatePropagation = function () {
+ if (old.stopImmediatePropagation) {
+ old.stopImmediatePropagation();
+ }
+
+ event.isImmediatePropagationStopped = returnTrue;
+ event.stopPropagation();
+ };
+
+ event.isImmediatePropagationStopped = returnFalse; // Handle mouse position
+
+ if (event.clientX !== null && event.clientX !== undefined) {
+ var doc = document.documentElement;
+ var body = document.body;
+ event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
+ event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);
+ } // Handle key presses
+
+
+ event.which = event.charCode || event.keyCode; // Fix button for mouse clicks:
+ // 0 == left; 1 == middle; 2 == right
+
+ if (event.button !== null && event.button !== undefined) {
+ // The following is disabled because it does not pass videojs-standard
+ // and... yikes.
+
+ /* eslint-disable */
+ event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;
+ /* eslint-enable */
+ }
+ } // Returns fixed-up instance
+
+
+ return event;
+}
+/**
+ * Whether passive event listeners are supported
+ */
+
+var _supportsPassive = false;
+
+(function () {
+ try {
+ var opts = Object.defineProperty({}, 'passive', {
+ get: function get() {
+ _supportsPassive = true;
+ }
+ });
+ window$1.addEventListener('test', null, opts);
+ window$1.removeEventListener('test', null, opts);
+ } catch (e) {// disregard
+ }
+})();
+/**
+ * Touch events Chrome expects to be passive
+ */
+
+
+var passiveEvents = ['touchstart', 'touchmove'];
+/**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string|string[]} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} fn
+ * Event listener.
+ */
+
+function on(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(on, elem, type, fn);
+ }
+
+ if (!DomData.has(elem)) {
+ DomData.set(elem, {});
+ }
+
+ var data = DomData.get(elem); // We need a place to store all our handler data
+
+ if (!data.handlers) {
+ data.handlers = {};
+ }
+
+ if (!data.handlers[type]) {
+ data.handlers[type] = [];
+ }
+
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ data.handlers[type].push(fn);
+
+ if (!data.dispatcher) {
+ data.disabled = false;
+
+ data.dispatcher = function (event, hash) {
+ if (data.disabled) {
+ return;
+ }
+
+ event = fixEvent(event);
+ var handlers = data.handlers[event.type];
+
+ if (handlers) {
+ // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.
+ var handlersCopy = handlers.slice(0);
+
+ for (var m = 0, n = handlersCopy.length; m < n; m++) {
+ if (event.isImmediatePropagationStopped()) {
+ break;
+ } else {
+ try {
+ handlersCopy[m].call(elem, event, hash);
+ } catch (e) {
+ log.error(e);
+ }
+ }
+ }
+ }
+ };
+ }
+
+ if (data.handlers[type].length === 1) {
+ if (elem.addEventListener) {
+ var options = false;
+
+ if (_supportsPassive && passiveEvents.indexOf(type) > -1) {
+ options = {
+ passive: true
+ };
+ }
+
+ elem.addEventListener(type, data.dispatcher, options);
+ } else if (elem.attachEvent) {
+ elem.attachEvent('on' + type, data.dispatcher);
+ }
+ }
+}
+/**
+ * Removes event listeners from an element
+ *
+ * @param {Element|Object} elem
+ * Object to remove listeners from.
+ *
+ * @param {string|string[]} [type]
+ * Type of listener to remove. Don't include to remove all events from element.
+ *
+ * @param {EventTarget~EventListener} [fn]
+ * Specific listener to remove. Don't include to remove listeners for an event
+ * type.
+ */
+
+function off(elem, type, fn) {
+ // Don't want to add a cache object through getElData if not needed
+ if (!DomData.has(elem)) {
+ return;
+ }
+
+ var data = DomData.get(elem); // If no events exist, nothing to unbind
+
+ if (!data.handlers) {
+ return;
+ }
+
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(off, elem, type, fn);
+ } // Utility function
+
+
+ var removeType = function removeType(el, t) {
+ data.handlers[t] = [];
+
+ _cleanUpEvents(el, t);
+ }; // Are we removing all bound events?
+
+
+ if (type === undefined) {
+ for (var t in data.handlers) {
+ if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {
+ removeType(elem, t);
+ }
+ }
+
+ return;
+ }
+
+ var handlers = data.handlers[type]; // If no handlers exist, nothing to unbind
+
+ if (!handlers) {
+ return;
+ } // If no listener was provided, remove all listeners for type
+
+
+ if (!fn) {
+ removeType(elem, type);
+ return;
+ } // We're only removing a single handler
+
+
+ if (fn.guid) {
+ for (var n = 0; n < handlers.length; n++) {
+ if (handlers[n].guid === fn.guid) {
+ handlers.splice(n--, 1);
+ }
+ }
+ }
+
+ _cleanUpEvents(elem, type);
+}
+/**
+ * Trigger an event for an element
+ *
+ * @param {Element|Object} elem
+ * Element to trigger an event on
+ *
+ * @param {EventTarget~Event|string} event
+ * A string (the type) or an event object with a type attribute
+ *
+ * @param {Object} [hash]
+ * data hash to pass along with the event
+ *
+ * @return {boolean|undefined}
+ * Returns the opposite of `defaultPrevented` if default was
+ * prevented. Otherwise, returns `undefined`
+ */
+
+function trigger(elem, event, hash) {
+ // Fetches element data and a reference to the parent (for bubbling).
+ // Don't want to add a data object to cache for every parent,
+ // so checking hasElData first.
+ var elemData = DomData.has(elem) ? DomData.get(elem) : {};
+ var parent = elem.parentNode || elem.ownerDocument; // type = event.type || event,
+ // handler;
+ // If an event name was passed as a string, creates an event out of it
+
+ if (typeof event === 'string') {
+ event = {
+ type: event,
+ target: elem
+ };
+ } else if (!event.target) {
+ event.target = elem;
+ } // Normalizes the event properties.
+
+
+ event = fixEvent(event); // If the passed element has a dispatcher, executes the established handlers.
+
+ if (elemData.dispatcher) {
+ elemData.dispatcher.call(elem, event, hash);
+ } // Unless explicitly stopped or the event does not bubble (e.g. media events)
+ // recursively calls this function to bubble the event up the DOM.
+
+
+ if (parent && !event.isPropagationStopped() && event.bubbles === true) {
+ trigger.call(null, parent, event, hash); // If at the top of the DOM, triggers the default action unless disabled.
+ } else if (!parent && !event.defaultPrevented && event.target && event.target[event.type]) {
+ if (!DomData.has(event.target)) {
+ DomData.set(event.target, {});
+ }
+
+ var targetData = DomData.get(event.target); // Checks if the target has a default action for this event.
+
+ if (event.target[event.type]) {
+ // Temporarily disables event dispatching on the target as we have already executed the handler.
+ targetData.disabled = true; // Executes the default action.
+
+ if (typeof event.target[event.type] === 'function') {
+ event.target[event.type]();
+ } // Re-enables event dispatching.
+
+
+ targetData.disabled = false;
+ }
+ } // Inform the triggerer if the default was prevented by returning false
+
+
+ return !event.defaultPrevented;
+}
+/**
+ * Trigger a listener only once for an event.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind to.
+ *
+ * @param {string|string[]} type
+ * Name/type of event
+ *
+ * @param {Event~EventListener} fn
+ * Event listener function
+ */
+
+function one(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(one, elem, type, fn);
+ }
+
+ var func = function func() {
+ off(elem, type, func);
+ fn.apply(this, arguments);
+ }; // copy the guid to the new function so it can removed using the original function's ID
+
+
+ func.guid = fn.guid = fn.guid || newGUID();
+ on(elem, type, func);
+}
+/**
+ * Trigger a listener only once and then turn if off for all
+ * configured events
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind to.
+ *
+ * @param {string|string[]} type
+ * Name/type of event
+ *
+ * @param {Event~EventListener} fn
+ * Event listener function
+ */
+
+function any(elem, type, fn) {
+ var func = function func() {
+ off(elem, type, func);
+ fn.apply(this, arguments);
+ }; // copy the guid to the new function so it can removed using the original function's ID
+
+
+ func.guid = fn.guid = fn.guid || newGUID(); // multiple ons, but one off for everything
+
+ on(elem, type, func);
+}
+
+var Events = /*#__PURE__*/Object.freeze({
+ fixEvent: fixEvent,
+ on: on,
+ off: off,
+ trigger: trigger,
+ one: one,
+ any: any
+});
+
+/**
+ * @file fn.js
+ * @module fn
+ */
+var UPDATE_REFRESH_INTERVAL = 30;
+/**
+ * Bind (a.k.a proxy or context). A simple method for changing the context of
+ * a function.
+ *
+ * It also stores a unique id on the function so it can be easily removed from
+ * events.
+ *
+ * @function
+ * @param {Mixed} context
+ * The object to bind as scope.
+ *
+ * @param {Function} fn
+ * The function to be bound to a scope.
+ *
+ * @param {number} [uid]
+ * An optional unique ID for the function to be set
+ *
+ * @return {Function}
+ * The new function that will be bound into the context given
+ */
+
+var bind = function bind(context, fn, uid) {
+ // Make sure the function has a unique ID
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ } // Create the new function that changes the context
+
+
+ var bound = fn.bind(context); // Allow for the ability to individualize this function
+ // Needed in the case where multiple objects might share the same prototype
+ // IF both items add an event listener with the same function, then you try to remove just one
+ // it will remove both because they both have the same guid.
+ // when using this, you need to use the bind method when you remove the listener as well.
+ // currently used in text tracks
+
+ bound.guid = uid ? uid + '_' + fn.guid : fn.guid;
+ return bound;
+};
+/**
+ * Wraps the given function, `fn`, with a new function that only invokes `fn`
+ * at most once per every `wait` milliseconds.
+ *
+ * @function
+ * @param {Function} fn
+ * The function to be throttled.
+ *
+ * @param {number} wait
+ * The number of milliseconds by which to throttle.
+ *
+ * @return {Function}
+ */
+
+var throttle = function throttle(fn, wait) {
+ var last = window$1.performance.now();
+
+ var throttled = function throttled() {
+ var now = window$1.performance.now();
+
+ if (now - last >= wait) {
+ fn.apply(void 0, arguments);
+ last = now;
+ }
+ };
+
+ return throttled;
+};
+/**
+ * Creates a debounced function that delays invoking `func` until after `wait`
+ * milliseconds have elapsed since the last time the debounced function was
+ * invoked.
+ *
+ * Inspired by lodash and underscore implementations.
+ *
+ * @function
+ * @param {Function} func
+ * The function to wrap with debounce behavior.
+ *
+ * @param {number} wait
+ * The number of milliseconds to wait after the last invocation.
+ *
+ * @param {boolean} [immediate]
+ * Whether or not to invoke the function immediately upon creation.
+ *
+ * @param {Object} [context=window]
+ * The "context" in which the debounced function should debounce. For
+ * example, if this function should be tied to a Video.js player,
+ * the player can be passed here. Alternatively, defaults to the
+ * global `window` object.
+ *
+ * @return {Function}
+ * A debounced function.
+ */
+
+var debounce = function debounce(func, wait, immediate, context) {
+ if (context === void 0) {
+ context = window$1;
+ }
+
+ var timeout;
+
+ var cancel = function cancel() {
+ context.clearTimeout(timeout);
+ timeout = null;
+ };
+ /* eslint-disable consistent-this */
+
+
+ var debounced = function debounced() {
+ var self = this;
+ var args = arguments;
+
+ var _later = function later() {
+ timeout = null;
+ _later = null;
+
+ if (!immediate) {
+ func.apply(self, args);
+ }
+ };
+
+ if (!timeout && immediate) {
+ func.apply(self, args);
+ }
+
+ context.clearTimeout(timeout);
+ timeout = context.setTimeout(_later, wait);
+ };
+ /* eslint-enable consistent-this */
+
+
+ debounced.cancel = cancel;
+ return debounced;
+};
+
+/**
+ * @file src/js/event-target.js
+ */
+/**
+ * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It
+ * adds shorthand functions that wrap around lengthy functions. For example:
+ * the `on` function is a wrapper around `addEventListener`.
+ *
+ * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}
+ * @class EventTarget
+ */
+
+var EventTarget = function EventTarget() {};
+/**
+ * A Custom DOM event.
+ *
+ * @typedef {Object} EventTarget~Event
+ * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}
+ */
+
+/**
+ * All event listeners should follow the following format.
+ *
+ * @callback EventTarget~EventListener
+ * @this {EventTarget}
+ *
+ * @param {EventTarget~Event} event
+ * the event that triggered this function
+ *
+ * @param {Object} [hash]
+ * hash of data sent during the event
+ */
+
+/**
+ * An object containing event names as keys and booleans as values.
+ *
+ * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}
+ * will have extra functionality. See that function for more information.
+ *
+ * @property EventTarget.prototype.allowedEvents_
+ * @private
+ */
+
+
+EventTarget.prototype.allowedEvents_ = {};
+/**
+ * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a
+ * function that will get called when an event with a certain name gets triggered.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to call with `EventTarget`s
+ */
+
+EventTarget.prototype.on = function (type, fn) {
+ // Remove the addEventListener alias before calling Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+
+ on(this, type, fn);
+ this.addEventListener = ael;
+};
+/**
+ * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#on}
+ */
+
+
+EventTarget.prototype.addEventListener = EventTarget.prototype.on;
+/**
+ * Removes an `event listener` for a specific event from an instance of `EventTarget`.
+ * This makes it so that the `event listener` will no longer get called when the
+ * named event happens.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to remove.
+ */
+
+EventTarget.prototype.off = function (type, fn) {
+ off(this, type, fn);
+};
+/**
+ * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#off}
+ */
+
+
+EventTarget.prototype.removeEventListener = EventTarget.prototype.off;
+/**
+ * This function will add an `event listener` that gets triggered only once. After the
+ * first trigger it will get removed. This is like adding an `event listener`
+ * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to be called once for each event name.
+ */
+
+EventTarget.prototype.one = function (type, fn) {
+ // Remove the addEventListener aliasing Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+
+ one(this, type, fn);
+ this.addEventListener = ael;
+};
+
+EventTarget.prototype.any = function (type, fn) {
+ // Remove the addEventListener aliasing Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+
+ any(this, type, fn);
+ this.addEventListener = ael;
+};
+/**
+ * This function causes an event to happen. This will then cause any `event listeners`
+ * that are waiting for that event, to get called. If there are no `event listeners`
+ * for an event then nothing will happen.
+ *
+ * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.
+ * Trigger will also call the `on` + `uppercaseEventName` function.
+ *
+ * Example:
+ * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call
+ * `onClick` if it exists.
+ *
+ * @param {string|EventTarget~Event|Object} event
+ * The name of the event, an `Event`, or an object with a key of type set to
+ * an event name.
+ */
+
+
+EventTarget.prototype.trigger = function (event) {
+ var type = event.type || event; // deprecation
+ // In a future version we should default target to `this`
+ // similar to how we default the target to `elem` in
+ // `Events.trigger`. Right now the default `target` will be
+ // `document` due to the `Event.fixEvent` call.
+
+ if (typeof event === 'string') {
+ event = {
+ type: type
+ };
+ }
+
+ event = fixEvent(event);
+
+ if (this.allowedEvents_[type] && this['on' + type]) {
+ this['on' + type](event);
+ }
+
+ trigger(this, event);
+};
+/**
+ * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#trigger}
+ */
+
+
+EventTarget.prototype.dispatchEvent = EventTarget.prototype.trigger;
+var EVENT_MAP;
+
+EventTarget.prototype.queueTrigger = function (event) {
+ var _this = this;
+
+ // only set up EVENT_MAP if it'll be used
+ if (!EVENT_MAP) {
+ EVENT_MAP = new Map();
+ }
+
+ var type = event.type || event;
+ var map = EVENT_MAP.get(this);
+
+ if (!map) {
+ map = new Map();
+ EVENT_MAP.set(this, map);
+ }
+
+ var oldTimeout = map.get(type);
+ map["delete"](type);
+ window$1.clearTimeout(oldTimeout);
+ var timeout = window$1.setTimeout(function () {
+ // if we cleared out all timeouts for the current target, delete its map
+ if (map.size === 0) {
+ map = null;
+ EVENT_MAP["delete"](_this);
+ }
+
+ _this.trigger(event);
+ }, 0);
+ map.set(type, timeout);
+};
+
+/**
+ * @file mixins/evented.js
+ * @module evented
+ */
+/**
+ * Returns whether or not an object has had the evented mixin applied.
+ *
+ * @param {Object} object
+ * An object to test.
+ *
+ * @return {boolean}
+ * Whether or not the object appears to be evented.
+ */
+
+var isEvented = function isEvented(object) {
+ return object instanceof EventTarget || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) {
+ return typeof object[k] === 'function';
+ });
+};
+/**
+ * Adds a callback to run after the evented mixin applied.
+ *
+ * @param {Object} object
+ * An object to Add
+ * @param {Function} callback
+ * The callback to run.
+ */
+
+
+var addEventedCallback = function addEventedCallback(target, callback) {
+ if (isEvented(target)) {
+ callback();
+ } else {
+ if (!target.eventedCallbacks) {
+ target.eventedCallbacks = [];
+ }
+
+ target.eventedCallbacks.push(callback);
+ }
+};
+/**
+ * Whether a value is a valid event type - non-empty string or array.
+ *
+ * @private
+ * @param {string|Array} type
+ * The type value to test.
+ *
+ * @return {boolean}
+ * Whether or not the type is a valid event type.
+ */
+
+
+var isValidEventType = function isValidEventType(type) {
+ return (// The regex here verifies that the `type` contains at least one non-
+ // whitespace character.
+ typeof type === 'string' && /\S/.test(type) || Array.isArray(type) && !!type.length
+ );
+};
+/**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the target does not appear to be a valid event target.
+ *
+ * @param {Object} target
+ * The object to test.
+ */
+
+
+var validateTarget = function validateTarget(target) {
+ if (!target.nodeName && !isEvented(target)) {
+ throw new Error('Invalid target; must be a DOM node or evented object.');
+ }
+};
+/**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the type does not appear to be a valid event type.
+ *
+ * @param {string|Array} type
+ * The type to test.
+ */
+
+
+var validateEventType = function validateEventType(type) {
+ if (!isValidEventType(type)) {
+ throw new Error('Invalid event type; must be a non-empty string or array.');
+ }
+};
+/**
+ * Validates a value to determine if it is a valid listener. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the listener is not a function.
+ *
+ * @param {Function} listener
+ * The listener to test.
+ */
+
+
+var validateListener = function validateListener(listener) {
+ if (typeof listener !== 'function') {
+ throw new Error('Invalid listener; must be a function.');
+ }
+};
+/**
+ * Takes an array of arguments given to `on()` or `one()`, validates them, and
+ * normalizes them into an object.
+ *
+ * @private
+ * @param {Object} self
+ * The evented object on which `on()` or `one()` was called. This
+ * object will be bound as the `this` value for the listener.
+ *
+ * @param {Array} args
+ * An array of arguments passed to `on()` or `one()`.
+ *
+ * @return {Object}
+ * An object containing useful values for `on()` or `one()` calls.
+ */
+
+
+var normalizeListenArgs = function normalizeListenArgs(self, args) {
+ // If the number of arguments is less than 3, the target is always the
+ // evented object itself.
+ var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;
+ var target;
+ var type;
+ var listener;
+
+ if (isTargetingSelf) {
+ target = self.eventBusEl_; // Deal with cases where we got 3 arguments, but we are still listening to
+ // the evented object itself.
+
+ if (args.length >= 3) {
+ args.shift();
+ }
+
+ type = args[0];
+ listener = args[1];
+ } else {
+ target = args[0];
+ type = args[1];
+ listener = args[2];
+ }
+
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+ listener = bind(self, listener);
+ return {
+ isTargetingSelf: isTargetingSelf,
+ target: target,
+ type: type,
+ listener: listener
+ };
+};
+/**
+ * Adds the listener to the event type(s) on the target, normalizing for
+ * the type of target.
+ *
+ * @private
+ * @param {Element|Object} target
+ * A DOM node or evented object.
+ *
+ * @param {string} method
+ * The event binding method to use ("on" or "one").
+ *
+ * @param {string|Array} type
+ * One or more event type(s).
+ *
+ * @param {Function} listener
+ * A listener function.
+ */
+
+
+var listen = function listen(target, method, type, listener) {
+ validateTarget(target);
+
+ if (target.nodeName) {
+ Events[method](target, type, listener);
+ } else {
+ target[method](type, listener);
+ }
+};
+/**
+ * Contains methods that provide event capabilities to an object which is passed
+ * to {@link module:evented|evented}.
+ *
+ * @mixin EventedMixin
+ */
+
+
+var EventedMixin = {
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ on: function on() {
+ var _this = this;
+
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var _normalizeListenArgs = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs.isTargetingSelf,
+ target = _normalizeListenArgs.target,
+ type = _normalizeListenArgs.type,
+ listener = _normalizeListenArgs.listener;
+
+ listen(target, 'on', type, listener); // If this object is listening to another evented object.
+
+ if (!isTargetingSelf) {
+ // If this object is disposed, remove the listener.
+ var removeListenerOnDispose = function removeListenerOnDispose() {
+ return _this.off(target, type, listener);
+ }; // Use the same function ID as the listener so we can remove it later it
+ // using the ID of the original listener.
+
+
+ removeListenerOnDispose.guid = listener.guid; // Add a listener to the target's dispose event as well. This ensures
+ // that if the target is disposed BEFORE this object, we remove the
+ // removal listener that was just added. Otherwise, we create a memory leak.
+
+ var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() {
+ return _this.off('dispose', removeListenerOnDispose);
+ }; // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+
+
+ removeRemoverOnTargetDispose.guid = listener.guid;
+ listen(this, 'on', 'dispose', removeListenerOnDispose);
+ listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);
+ }
+ },
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object. The listener will be called once per event and then removed.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ one: function one() {
+ var _this2 = this;
+
+ for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ var _normalizeListenArgs2 = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs2.isTargetingSelf,
+ target = _normalizeListenArgs2.target,
+ type = _normalizeListenArgs2.type,
+ listener = _normalizeListenArgs2.listener; // Targeting this evented object.
+
+
+ if (isTargetingSelf) {
+ listen(target, 'one', type, listener); // Targeting another evented object.
+ } else {
+ // TODO: This wrapper is incorrect! It should only
+ // remove the wrapper for the event type that called it.
+ // Instead all listners are removed on the first trigger!
+ // see https://github.com/videojs/video.js/issues/5962
+ var wrapper = function wrapper() {
+ _this2.off(target, type, wrapper);
+
+ for (var _len3 = arguments.length, largs = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ largs[_key3] = arguments[_key3];
+ }
+
+ listener.apply(null, largs);
+ }; // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+
+
+ wrapper.guid = listener.guid;
+ listen(target, 'one', type, wrapper);
+ }
+ },
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object. The listener will only be called once for the first event that is triggered
+ * then removed.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ any: function any() {
+ var _this3 = this;
+
+ for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+ args[_key4] = arguments[_key4];
+ }
+
+ var _normalizeListenArgs3 = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs3.isTargetingSelf,
+ target = _normalizeListenArgs3.target,
+ type = _normalizeListenArgs3.type,
+ listener = _normalizeListenArgs3.listener; // Targeting this evented object.
+
+
+ if (isTargetingSelf) {
+ listen(target, 'any', type, listener); // Targeting another evented object.
+ } else {
+ var wrapper = function wrapper() {
+ _this3.off(target, type, wrapper);
+
+ for (var _len5 = arguments.length, largs = new Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {
+ largs[_key5] = arguments[_key5];
+ }
+
+ listener.apply(null, largs);
+ }; // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+
+
+ wrapper.guid = listener.guid;
+ listen(target, 'any', type, wrapper);
+ }
+ },
+
+ /**
+ * Removes listener(s) from event(s) on an evented object.
+ *
+ * @param {string|Array|Element|Object} [targetOrType]
+ * If this is a string or array, it represents the event type(s).
+ *
+ * Another evented object can be passed here instead, in which case
+ * ALL 3 arguments are _required_.
+ *
+ * @param {string|Array|Function} [typeOrListener]
+ * If the first argument was a string or array, this may be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function; otherwise, _all_ listeners bound to the
+ * event type(s) will be removed.
+ */
+ off: function off$1(targetOrType, typeOrListener, listener) {
+ // Targeting this evented object.
+ if (!targetOrType || isValidEventType(targetOrType)) {
+ off(this.eventBusEl_, targetOrType, typeOrListener); // Targeting another evented object.
+ } else {
+ var target = targetOrType;
+ var type = typeOrListener; // Fail fast and in a meaningful way!
+
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener); // Ensure there's at least a guid, even if the function hasn't been used
+
+ listener = bind(this, listener); // Remove the dispose listener on this evented object, which was given
+ // the same guid as the event listener in on().
+
+ this.off('dispose', listener);
+
+ if (target.nodeName) {
+ off(target, type, listener);
+ off(target, 'dispose', listener);
+ } else if (isEvented(target)) {
+ target.off(type, listener);
+ target.off('dispose', listener);
+ }
+ }
+ },
+
+ /**
+ * Fire an event on this evented object, causing its listeners to be called.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash]
+ * An additional object to pass along to listeners.
+ *
+ * @return {boolean}
+ * Whether or not the default behavior was prevented.
+ */
+ trigger: function trigger$1(event, hash) {
+ return trigger(this.eventBusEl_, event, hash);
+ }
+};
+/**
+ * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.
+ *
+ * @param {Object} target
+ * The object to which to add event methods.
+ *
+ * @param {Object} [options={}]
+ * Options for customizing the mixin behavior.
+ *
+ * @param {string} [options.eventBusKey]
+ * By default, adds a `eventBusEl_` DOM element to the target object,
+ * which is used as an event bus. If the target object already has a
+ * DOM element that should be used, pass its key here.
+ *
+ * @return {Object}
+ * The target object.
+ */
+
+function evented(target, options) {
+ if (options === void 0) {
+ options = {};
+ }
+
+ var _options = options,
+ eventBusKey = _options.eventBusKey; // Set or create the eventBusEl_.
+
+ if (eventBusKey) {
+ if (!target[eventBusKey].nodeName) {
+ throw new Error("The eventBusKey \"" + eventBusKey + "\" does not refer to an element.");
+ }
+
+ target.eventBusEl_ = target[eventBusKey];
+ } else {
+ target.eventBusEl_ = createEl('span', {
+ className: 'vjs-event-bus'
+ });
+ }
+
+ assign(target, EventedMixin);
+
+ if (target.eventedCallbacks) {
+ target.eventedCallbacks.forEach(function (callback) {
+ callback();
+ });
+ } // When any evented object is disposed, it removes all its listeners.
+
+
+ target.on('dispose', function () {
+ target.off();
+ window$1.setTimeout(function () {
+ target.eventBusEl_ = null;
+ }, 0);
+ });
+ return target;
+}
+
+/**
+ * @file mixins/stateful.js
+ * @module stateful
+ */
+/**
+ * Contains methods that provide statefulness to an object which is passed
+ * to {@link module:stateful}.
+ *
+ * @mixin StatefulMixin
+ */
+
+var StatefulMixin = {
+ /**
+ * A hash containing arbitrary keys and values representing the state of
+ * the object.
+ *
+ * @type {Object}
+ */
+ state: {},
+
+ /**
+ * Set the state of an object by mutating its
+ * {@link module:stateful~StatefulMixin.state|state} object in place.
+ *
+ * @fires module:stateful~StatefulMixin#statechanged
+ * @param {Object|Function} stateUpdates
+ * A new set of properties to shallow-merge into the plugin state.
+ * Can be a plain object or a function returning a plain object.
+ *
+ * @return {Object|undefined}
+ * An object containing changes that occurred. If no changes
+ * occurred, returns `undefined`.
+ */
+ setState: function setState(stateUpdates) {
+ var _this = this;
+
+ // Support providing the `stateUpdates` state as a function.
+ if (typeof stateUpdates === 'function') {
+ stateUpdates = stateUpdates();
+ }
+
+ var changes;
+ each(stateUpdates, function (value, key) {
+ // Record the change if the value is different from what's in the
+ // current state.
+ if (_this.state[key] !== value) {
+ changes = changes || {};
+ changes[key] = {
+ from: _this.state[key],
+ to: value
+ };
+ }
+
+ _this.state[key] = value;
+ }); // Only trigger "statechange" if there were changes AND we have a trigger
+ // function. This allows us to not require that the target object be an
+ // evented object.
+
+ if (changes && isEvented(this)) {
+ /**
+ * An event triggered on an object that is both
+ * {@link module:stateful|stateful} and {@link module:evented|evented}
+ * indicating that its state has changed.
+ *
+ * @event module:stateful~StatefulMixin#statechanged
+ * @type {Object}
+ * @property {Object} changes
+ * A hash containing the properties that were changed and
+ * the values they were changed `from` and `to`.
+ */
+ this.trigger({
+ changes: changes,
+ type: 'statechanged'
+ });
+ }
+
+ return changes;
+ }
+};
+/**
+ * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target
+ * object.
+ *
+ * If the target object is {@link module:evented|evented} and has a
+ * `handleStateChanged` method, that method will be automatically bound to the
+ * `statechanged` event on itself.
+ *
+ * @param {Object} target
+ * The object to be made stateful.
+ *
+ * @param {Object} [defaultState]
+ * A default set of properties to populate the newly-stateful object's
+ * `state` property.
+ *
+ * @return {Object}
+ * Returns the `target`.
+ */
+
+function stateful(target, defaultState) {
+ assign(target, StatefulMixin); // This happens after the mixing-in because we need to replace the `state`
+ // added in that step.
+
+ target.state = assign({}, target.state, defaultState); // Auto-bind the `handleStateChanged` method of the target object if it exists.
+
+ if (typeof target.handleStateChanged === 'function' && isEvented(target)) {
+ target.on('statechanged', target.handleStateChanged);
+ }
+
+ return target;
+}
+
+/**
+ * @file string-cases.js
+ * @module to-lower-case
+ */
+
+/**
+ * Lowercase the first letter of a string.
+ *
+ * @param {string} string
+ * String to be lowercased
+ *
+ * @return {string}
+ * The string with a lowercased first letter
+ */
+var toLowerCase = function toLowerCase(string) {
+ if (typeof string !== 'string') {
+ return string;
+ }
+
+ return string.replace(/./, function (w) {
+ return w.toLowerCase();
+ });
+};
+/**
+ * Uppercase the first letter of a string.
+ *
+ * @param {string} string
+ * String to be uppercased
+ *
+ * @return {string}
+ * The string with an uppercased first letter
+ */
+
+var toTitleCase = function toTitleCase(string) {
+ if (typeof string !== 'string') {
+ return string;
+ }
+
+ return string.replace(/./, function (w) {
+ return w.toUpperCase();
+ });
+};
+/**
+ * Compares the TitleCase versions of the two strings for equality.
+ *
+ * @param {string} str1
+ * The first string to compare
+ *
+ * @param {string} str2
+ * The second string to compare
+ *
+ * @return {boolean}
+ * Whether the TitleCase versions of the strings are equal
+ */
+
+var titleCaseEquals = function titleCaseEquals(str1, str2) {
+ return toTitleCase(str1) === toTitleCase(str2);
+};
+
+/**
+ * @file merge-options.js
+ * @module merge-options
+ */
+/**
+ * Merge two objects recursively.
+ *
+ * Performs a deep merge like
+ * {@link https://lodash.com/docs/4.17.10#merge|lodash.merge}, but only merges
+ * plain objects (not arrays, elements, or anything else).
+ *
+ * Non-plain object values will be copied directly from the right-most
+ * argument.
+ *
+ * @static
+ * @param {Object[]} sources
+ * One or more objects to merge into a new object.
+ *
+ * @return {Object}
+ * A new object that is the merged result of all sources.
+ */
+
+function mergeOptions() {
+ var result = {};
+
+ for (var _len = arguments.length, sources = new Array(_len), _key = 0; _key < _len; _key++) {
+ sources[_key] = arguments[_key];
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ if (!isPlain(value)) {
+ result[key] = value;
+ return;
+ }
+
+ if (!isPlain(result[key])) {
+ result[key] = {};
+ }
+
+ result[key] = mergeOptions(result[key], value);
+ });
+ });
+ return result;
+}
+
+/**
+ * Player Component - Base class for all UI objects
+ *
+ * @file component.js
+ */
+/**
+ * Base class for all UI Components.
+ * Components are UI objects which represent both a javascript object and an element
+ * in the DOM. They can be children of other components, and can have
+ * children themselves.
+ *
+ * Components can also use methods from {@link EventTarget}
+ */
+
+var Component =
+/*#__PURE__*/
+function () {
+ /**
+ * A callback that is called when a component is ready. Does not have any
+ * paramters and any callback value will be ignored.
+ *
+ * @callback Component~ReadyCallback
+ * @this Component
+ */
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Object[]} [options.children]
+ * An array of children objects to intialize this component with. Children objects have
+ * a name property that will be used if more than one component of the same type needs to be
+ * added.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Function that gets called when the `Component` is ready.
+ */
+ function Component(player, options, ready) {
+ // The component might be the player itself and we can't pass `this` to super
+ if (!player && this.play) {
+ this.player_ = player = this; // eslint-disable-line
+ } else {
+ this.player_ = player;
+ } // Hold the reference to the parent component via `addChild` method
+
+
+ this.parentComponent_ = null; // Make a copy of prototype.options_ to protect against overriding defaults
+
+ this.options_ = mergeOptions({}, this.options_); // Updated options with supplied options
+
+ options = this.options_ = mergeOptions(this.options_, options); // Get ID from options or options element if one is supplied
+
+ this.id_ = options.id || options.el && options.el.id; // If there was no ID from the options, generate one
+
+ if (!this.id_) {
+ // Don't require the player ID function in the case of mock players
+ var id = player && player.id && player.id() || 'no_player';
+ this.id_ = id + "_component_" + newGUID();
+ }
+
+ this.name_ = options.name || null; // Create element if one wasn't provided in options
+
+ if (options.el) {
+ this.el_ = options.el;
+ } else if (options.createEl !== false) {
+ this.el_ = this.createEl();
+ } // if evented is anything except false, we want to mixin in evented
+
+
+ if (options.evented !== false) {
+ // Make this an evented object and use `el_`, if available, as its event bus
+ evented(this, {
+ eventBusKey: this.el_ ? 'el_' : null
+ });
+ }
+
+ stateful(this, this.constructor.defaultState);
+ this.children_ = [];
+ this.childIndex_ = {};
+ this.childNameIndex_ = {};
+ var SetSham;
+
+ if (!window$1.Set) {
+ SetSham =
+ /*#__PURE__*/
+ function () {
+ function SetSham() {
+ this.set_ = {};
+ }
+
+ var _proto2 = SetSham.prototype;
+
+ _proto2.has = function has(key) {
+ return key in this.set_;
+ };
+
+ _proto2["delete"] = function _delete(key) {
+ var has = this.has(key);
+ delete this.set_[key];
+ return has;
+ };
+
+ _proto2.add = function add(key) {
+ this.set_[key] = 1;
+ return this;
+ };
+
+ _proto2.forEach = function forEach(callback, thisArg) {
+ for (var key in this.set_) {
+ callback.call(thisArg, key, key, this);
+ }
+ };
+
+ return SetSham;
+ }();
+ }
+
+ this.setTimeoutIds_ = window$1.Set ? new Set() : new SetSham();
+ this.setIntervalIds_ = window$1.Set ? new Set() : new SetSham();
+ this.rafIds_ = window$1.Set ? new Set() : new SetSham();
+ this.clearingTimersOnDispose_ = false; // Add any child components in options
+
+ if (options.initChildren !== false) {
+ this.initChildren();
+ }
+
+ this.ready(ready); // Don't want to trigger ready here or it will before init is actually
+ // finished for all children that run this constructor
+
+ if (options.reportTouchActivity !== false) {
+ this.enableTouchActivity();
+ }
+ }
+ /**
+ * Dispose of the `Component` and all child components.
+ *
+ * @fires Component#dispose
+ */
+
+
+ var _proto = Component.prototype;
+
+ _proto.dispose = function dispose() {
+ /**
+ * Triggered when a `Component` is disposed.
+ *
+ * @event Component#dispose
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up
+ */
+ this.trigger({
+ type: 'dispose',
+ bubbles: false
+ }); // Dispose all children.
+
+ if (this.children_) {
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i].dispose) {
+ this.children_[i].dispose();
+ }
+ }
+ } // Delete child references
+
+
+ this.children_ = null;
+ this.childIndex_ = null;
+ this.childNameIndex_ = null;
+ this.parentComponent_ = null;
+
+ if (this.el_) {
+ // Remove element from DOM
+ if (this.el_.parentNode) {
+ this.el_.parentNode.removeChild(this.el_);
+ }
+
+ if (DomData.has(this.el_)) {
+ DomData["delete"](this.el_);
+ }
+
+ this.el_ = null;
+ } // remove reference to the player after disposing of the element
+
+
+ this.player_ = null;
+ }
+ /**
+ * Return the {@link Player} that the `Component` has attached to.
+ *
+ * @return {Player}
+ * The player that this `Component` has attached to.
+ */
+ ;
+
+ _proto.player = function player() {
+ return this.player_;
+ }
+ /**
+ * Deep merge of options objects with new options.
+ * > Note: When both `obj` and `options` contain properties whose values are objects.
+ * The two properties get merged using {@link module:mergeOptions}
+ *
+ * @param {Object} obj
+ * The object that contains new options.
+ *
+ * @return {Object}
+ * A new object of `this.options_` and `obj` merged together.
+ */
+ ;
+
+ _proto.options = function options(obj) {
+ if (!obj) {
+ return this.options_;
+ }
+
+ this.options_ = mergeOptions(this.options_, obj);
+ return this.options_;
+ }
+ /**
+ * Get the `Component`s DOM element
+ *
+ * @return {Element}
+ * The DOM element for this `Component`.
+ */
+ ;
+
+ _proto.el = function el() {
+ return this.el_;
+ }
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tagName]
+ * Element's DOM node type. e.g. 'div'
+ *
+ * @param {Object} [properties]
+ * An object of properties that should be set.
+ *
+ * @param {Object} [attributes]
+ * An object of attributes that should be set.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+ ;
+
+ _proto.createEl = function createEl$1(tagName, properties, attributes) {
+ return createEl(tagName, properties, attributes);
+ }
+ /**
+ * Localize a string given the string in english.
+ *
+ * If tokens are provided, it'll try and run a simple token replacement on the provided string.
+ * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.
+ *
+ * If a `defaultValue` is provided, it'll use that over `string`,
+ * if a value isn't found in provided language files.
+ * This is useful if you want to have a descriptive key for token replacement
+ * but have a succinct localized string and not require `en.json` to be included.
+ *
+ * Currently, it is used for the progress bar timing.
+ * ```js
+ * {
+ * "progress bar timing: currentTime={1} duration={2}": "{1} of {2}"
+ * }
+ * ```
+ * It is then used like so:
+ * ```js
+ * this.localize('progress bar timing: currentTime={1} duration{2}',
+ * [this.player_.currentTime(), this.player_.duration()],
+ * '{1} of {2}');
+ * ```
+ *
+ * Which outputs something like: `01:23 of 24:56`.
+ *
+ *
+ * @param {string} string
+ * The string to localize and the key to lookup in the language files.
+ * @param {string[]} [tokens]
+ * If the current item has token replacements, provide the tokens here.
+ * @param {string} [defaultValue]
+ * Defaults to `string`. Can be a default value to use for token replacement
+ * if the lookup key is needed to be separate.
+ *
+ * @return {string}
+ * The localized string or if no localization exists the english string.
+ */
+ ;
+
+ _proto.localize = function localize(string, tokens, defaultValue) {
+ if (defaultValue === void 0) {
+ defaultValue = string;
+ }
+
+ var code = this.player_.language && this.player_.language();
+ var languages = this.player_.languages && this.player_.languages();
+ var language = languages && languages[code];
+ var primaryCode = code && code.split('-')[0];
+ var primaryLang = languages && languages[primaryCode];
+ var localizedString = defaultValue;
+
+ if (language && language[string]) {
+ localizedString = language[string];
+ } else if (primaryLang && primaryLang[string]) {
+ localizedString = primaryLang[string];
+ }
+
+ if (tokens) {
+ localizedString = localizedString.replace(/\{(\d+)\}/g, function (match, index) {
+ var value = tokens[index - 1];
+ var ret = value;
+
+ if (typeof value === 'undefined') {
+ ret = match;
+ }
+
+ return ret;
+ });
+ }
+
+ return localizedString;
+ }
+ /**
+ * Return the `Component`s DOM element. This is where children get inserted.
+ * This will usually be the the same as the element returned in {@link Component#el}.
+ *
+ * @return {Element}
+ * The content element for this `Component`.
+ */
+ ;
+
+ _proto.contentEl = function contentEl() {
+ return this.contentEl_ || this.el_;
+ }
+ /**
+ * Get this `Component`s ID
+ *
+ * @return {string}
+ * The id of this `Component`
+ */
+ ;
+
+ _proto.id = function id() {
+ return this.id_;
+ }
+ /**
+ * Get the `Component`s name. The name gets used to reference the `Component`
+ * and is set during registration.
+ *
+ * @return {string}
+ * The name of this `Component`.
+ */
+ ;
+
+ _proto.name = function name() {
+ return this.name_;
+ }
+ /**
+ * Get an array of all child components
+ *
+ * @return {Array}
+ * The children
+ */
+ ;
+
+ _proto.children = function children() {
+ return this.children_;
+ }
+ /**
+ * Returns the child `Component` with the given `id`.
+ *
+ * @param {string} id
+ * The id of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `id` or undefined.
+ */
+ ;
+
+ _proto.getChildById = function getChildById(id) {
+ return this.childIndex_[id];
+ }
+ /**
+ * Returns the child `Component` with the given `name`.
+ *
+ * @param {string} name
+ * The name of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `name` or undefined.
+ */
+ ;
+
+ _proto.getChild = function getChild(name) {
+ if (!name) {
+ return;
+ }
+
+ return this.childNameIndex_[name];
+ }
+ /**
+ * Add a child `Component` inside the current `Component`.
+ *
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @param {number} [index=this.children_.length]
+ * The index to attempt to add a child into.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ */
+ ;
+
+ _proto.addChild = function addChild(child, options, index) {
+ if (options === void 0) {
+ options = {};
+ }
+
+ if (index === void 0) {
+ index = this.children_.length;
+ }
+
+ var component;
+ var componentName; // If child is a string, create component with options
+
+ if (typeof child === 'string') {
+ componentName = toTitleCase(child);
+ var componentClassName = options.componentClass || componentName; // Set name through options
+
+ options.name = componentName; // Create a new object & element for this controls set
+ // If there's no .player_, this is a player
+
+ var ComponentClass = Component.getComponent(componentClassName);
+
+ if (!ComponentClass) {
+ throw new Error("Component " + componentClassName + " does not exist");
+ } // data stored directly on the videojs object may be
+ // misidentified as a component to retain
+ // backwards-compatibility with 4.x. check to make sure the
+ // component class can be instantiated.
+
+
+ if (typeof ComponentClass !== 'function') {
+ return null;
+ }
+
+ component = new ComponentClass(this.player_ || this, options); // child is a component instance
+ } else {
+ component = child;
+ }
+
+ if (component.parentComponent_) {
+ component.parentComponent_.removeChild(component);
+ }
+
+ this.children_.splice(index, 0, component);
+ component.parentComponent_ = this;
+
+ if (typeof component.id === 'function') {
+ this.childIndex_[component.id()] = component;
+ } // If a name wasn't used to create the component, check if we can use the
+ // name function of the component
+
+
+ componentName = componentName || component.name && toTitleCase(component.name());
+
+ if (componentName) {
+ this.childNameIndex_[componentName] = component;
+ this.childNameIndex_[toLowerCase(componentName)] = component;
+ } // Add the UI object's element to the container div (box)
+ // Having an element is not required
+
+
+ if (typeof component.el === 'function' && component.el()) {
+ var childNodes = this.contentEl().children;
+ var refNode = childNodes[index] || null;
+ this.contentEl().insertBefore(component.el(), refNode);
+ } // Return so it can stored on parent object if desired.
+
+
+ return component;
+ }
+ /**
+ * Remove a child `Component` from this `Component`s list of children. Also removes
+ * the child `Component`s element from this `Component`s element.
+ *
+ * @param {Component} component
+ * The child `Component` to remove.
+ */
+ ;
+
+ _proto.removeChild = function removeChild(component) {
+ if (typeof component === 'string') {
+ component = this.getChild(component);
+ }
+
+ if (!component || !this.children_) {
+ return;
+ }
+
+ var childFound = false;
+
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i] === component) {
+ childFound = true;
+ this.children_.splice(i, 1);
+ break;
+ }
+ }
+
+ if (!childFound) {
+ return;
+ }
+
+ component.parentComponent_ = null;
+ this.childIndex_[component.id()] = null;
+ this.childNameIndex_[toTitleCase(component.name())] = null;
+ this.childNameIndex_[toLowerCase(component.name())] = null;
+ var compEl = component.el();
+
+ if (compEl && compEl.parentNode === this.contentEl()) {
+ this.contentEl().removeChild(component.el());
+ }
+ }
+ /**
+ * Add and initialize default child `Component`s based upon options.
+ */
+ ;
+
+ _proto.initChildren = function initChildren() {
+ var _this = this;
+
+ var children = this.options_.children;
+
+ if (children) {
+ // `this` is `parent`
+ var parentOptions = this.options_;
+
+ var handleAdd = function handleAdd(child) {
+ var name = child.name;
+ var opts = child.opts; // Allow options for children to be set at the parent options
+ // e.g. videojs(id, { controlBar: false });
+ // instead of videojs(id, { children: { controlBar: false });
+
+ if (parentOptions[name] !== undefined) {
+ opts = parentOptions[name];
+ } // Allow for disabling default components
+ // e.g. options['children']['posterImage'] = false
+
+
+ if (opts === false) {
+ return;
+ } // Allow options to be passed as a simple boolean if no configuration
+ // is necessary.
+
+
+ if (opts === true) {
+ opts = {};
+ } // We also want to pass the original player options
+ // to each component as well so they don't need to
+ // reach back into the player for options later.
+
+
+ opts.playerOptions = _this.options_.playerOptions; // Create and add the child component.
+ // Add a direct reference to the child by name on the parent instance.
+ // If two of the same component are used, different names should be supplied
+ // for each
+
+ var newChild = _this.addChild(name, opts);
+
+ if (newChild) {
+ _this[name] = newChild;
+ }
+ }; // Allow for an array of children details to passed in the options
+
+
+ var workingChildren;
+ var Tech = Component.getComponent('Tech');
+
+ if (Array.isArray(children)) {
+ workingChildren = children;
+ } else {
+ workingChildren = Object.keys(children);
+ }
+
+ workingChildren // children that are in this.options_ but also in workingChildren would
+ // give us extra children we do not want. So, we want to filter them out.
+ .concat(Object.keys(this.options_).filter(function (child) {
+ return !workingChildren.some(function (wchild) {
+ if (typeof wchild === 'string') {
+ return child === wchild;
+ }
+
+ return child === wchild.name;
+ });
+ })).map(function (child) {
+ var name;
+ var opts;
+
+ if (typeof child === 'string') {
+ name = child;
+ opts = children[name] || _this.options_[name] || {};
+ } else {
+ name = child.name;
+ opts = child;
+ }
+
+ return {
+ name: name,
+ opts: opts
+ };
+ }).filter(function (child) {
+ // we have to make sure that child.name isn't in the techOrder since
+ // techs are registerd as Components but can't aren't compatible
+ // See https://github.com/videojs/video.js/issues/2772
+ var c = Component.getComponent(child.opts.componentClass || toTitleCase(child.name));
+ return c && !Tech.isTech(c);
+ }).forEach(handleAdd);
+ }
+ }
+ /**
+ * Builds the default DOM class name. Should be overriden by sub-components.
+ *
+ * @return {string}
+ * The DOM class name for this object.
+ *
+ * @abstract
+ */
+ ;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ // Child classes can include a function that does:
+ // return 'CLASS NAME' + this._super();
+ return '';
+ }
+ /**
+ * Bind a listener to the component's ready state.
+ * Different from event listeners in that if the ready event has already happened
+ * it will trigger the function immediately.
+ *
+ * @return {Component}
+ * Returns itself; method can be chained.
+ */
+ ;
+
+ _proto.ready = function ready(fn, sync) {
+ if (sync === void 0) {
+ sync = false;
+ }
+
+ if (!fn) {
+ return;
+ }
+
+ if (!this.isReady_) {
+ this.readyQueue_ = this.readyQueue_ || [];
+ this.readyQueue_.push(fn);
+ return;
+ }
+
+ if (sync) {
+ fn.call(this);
+ } else {
+ // Call the function asynchronously by default for consistency
+ this.setTimeout(fn, 1);
+ }
+ }
+ /**
+ * Trigger all the ready listeners for this `Component`.
+ *
+ * @fires Component#ready
+ */
+ ;
+
+ _proto.triggerReady = function triggerReady() {
+ this.isReady_ = true; // Ensure ready is triggered asynchronously
+
+ this.setTimeout(function () {
+ var readyQueue = this.readyQueue_; // Reset Ready Queue
+
+ this.readyQueue_ = [];
+
+ if (readyQueue && readyQueue.length > 0) {
+ readyQueue.forEach(function (fn) {
+ fn.call(this);
+ }, this);
+ } // Allow for using event listeners also
+
+ /**
+ * Triggered when a `Component` is ready.
+ *
+ * @event Component#ready
+ * @type {EventTarget~Event}
+ */
+
+
+ this.trigger('ready');
+ }, 1);
+ }
+ /**
+ * Find a single DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {Element|null}
+ * the dom element that was found, or null
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+ ;
+
+ _proto.$ = function $$1(selector, context) {
+ return $(selector, context || this.contentEl());
+ }
+ /**
+ * Finds all DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {NodeList}
+ * a list of dom elements that were found
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+ ;
+
+ _proto.$$ = function $$$1(selector, context) {
+ return $$(selector, context || this.contentEl());
+ }
+ /**
+ * Check if a component's element has a CSS class name.
+ *
+ * @param {string} classToCheck
+ * CSS class name to check.
+ *
+ * @return {boolean}
+ * - True if the `Component` has the class.
+ * - False if the `Component` does not have the class`
+ */
+ ;
+
+ _proto.hasClass = function hasClass$1(classToCheck) {
+ return hasClass(this.el_, classToCheck);
+ }
+ /**
+ * Add a CSS class name to the `Component`s element.
+ *
+ * @param {string} classToAdd
+ * CSS class name to add
+ */
+ ;
+
+ _proto.addClass = function addClass$1(classToAdd) {
+ addClass(this.el_, classToAdd);
+ }
+ /**
+ * Remove a CSS class name from the `Component`s element.
+ *
+ * @param {string} classToRemove
+ * CSS class name to remove
+ */
+ ;
+
+ _proto.removeClass = function removeClass$1(classToRemove) {
+ removeClass(this.el_, classToRemove);
+ }
+ /**
+ * Add or remove a CSS class name from the component's element.
+ * - `classToToggle` gets added when {@link Component#hasClass} would return false.
+ * - `classToToggle` gets removed when {@link Component#hasClass} would return true.
+ *
+ * @param {string} classToToggle
+ * The class to add or remove based on (@link Component#hasClass}
+ *
+ * @param {boolean|Dom~predicate} [predicate]
+ * An {@link Dom~predicate} function or a boolean
+ */
+ ;
+
+ _proto.toggleClass = function toggleClass$1(classToToggle, predicate) {
+ toggleClass(this.el_, classToToggle, predicate);
+ }
+ /**
+ * Show the `Component`s element if it is hidden by removing the
+ * 'vjs-hidden' class name from it.
+ */
+ ;
+
+ _proto.show = function show() {
+ this.removeClass('vjs-hidden');
+ }
+ /**
+ * Hide the `Component`s element if it is currently showing by adding the
+ * 'vjs-hidden` class name to it.
+ */
+ ;
+
+ _proto.hide = function hide() {
+ this.addClass('vjs-hidden');
+ }
+ /**
+ * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'
+ * class name to it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+ ;
+
+ _proto.lockShowing = function lockShowing() {
+ this.addClass('vjs-lock-showing');
+ }
+ /**
+ * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'
+ * class name from it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+ ;
+
+ _proto.unlockShowing = function unlockShowing() {
+ this.removeClass('vjs-lock-showing');
+ }
+ /**
+ * Get the value of an attribute on the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to get the value from.
+ *
+ * @return {string|null}
+ * - The value of the attribute that was asked for.
+ * - Can be an empty string on some browsers if the attribute does not exist
+ * or has no value
+ * - Most browsers will return null if the attibute does not exist or has
+ * no value.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}
+ */
+ ;
+
+ _proto.getAttribute = function getAttribute$1(attribute) {
+ return getAttribute(this.el_, attribute);
+ }
+ /**
+ * Set the value of an attribute on the `Component`'s element
+ *
+ * @param {string} attribute
+ * Name of the attribute to set.
+ *
+ * @param {string} value
+ * Value to set the attribute to.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}
+ */
+ ;
+
+ _proto.setAttribute = function setAttribute$1(attribute, value) {
+ setAttribute(this.el_, attribute, value);
+ }
+ /**
+ * Remove an attribute from the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to remove.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}
+ */
+ ;
+
+ _proto.removeAttribute = function removeAttribute$1(attribute) {
+ removeAttribute(this.el_, attribute);
+ }
+ /**
+ * Get or set the width of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The width that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+ ;
+
+ _proto.width = function width(num, skipListeners) {
+ return this.dimension('width', num, skipListeners);
+ }
+ /**
+ * Get or set the height of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The height that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+ ;
+
+ _proto.height = function height(num, skipListeners) {
+ return this.dimension('height', num, skipListeners);
+ }
+ /**
+ * Set both the width and height of the `Component` element at the same time.
+ *
+ * @param {number|string} width
+ * Width to set the `Component`s element to.
+ *
+ * @param {number|string} height
+ * Height to set the `Component`s element to.
+ */
+ ;
+
+ _proto.dimensions = function dimensions(width, height) {
+ // Skip componentresize listeners on width for optimization
+ this.width(width, true);
+ this.height(height);
+ }
+ /**
+ * Get or set width or height of the `Component` element. This is the shared code
+ * for the {@link Component#width} and {@link Component#height}.
+ *
+ * Things to know:
+ * - If the width or height in an number this will return the number postfixed with 'px'.
+ * - If the width/height is a percent this will return the percent postfixed with '%'
+ * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function
+ * defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.
+ * See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}
+ * for more information
+ * - If you want the computed style of the component, use {@link Component#currentWidth}
+ * and {@link {Component#currentHeight}
+ *
+ * @fires Component#componentresize
+ *
+ * @param {string} widthOrHeight
+ 8 'width' or 'height'
+ *
+ * @param {number|string} [num]
+ 8 New dimension
+ *
+ * @param {boolean} [skipListeners]
+ * Skip componentresize event trigger
+ *
+ * @return {number}
+ * The dimension when getting or 0 if unset
+ */
+ ;
+
+ _proto.dimension = function dimension(widthOrHeight, num, skipListeners) {
+ if (num !== undefined) {
+ // Set to zero if null or literally NaN (NaN !== NaN)
+ if (num === null || num !== num) {
+ num = 0;
+ } // Check if using css width/height (% or px) and adjust
+
+
+ if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {
+ this.el_.style[widthOrHeight] = num;
+ } else if (num === 'auto') {
+ this.el_.style[widthOrHeight] = '';
+ } else {
+ this.el_.style[widthOrHeight] = num + 'px';
+ } // skipListeners allows us to avoid triggering the resize event when setting both width and height
+
+
+ if (!skipListeners) {
+ /**
+ * Triggered when a component is resized.
+ *
+ * @event Component#componentresize
+ * @type {EventTarget~Event}
+ */
+ this.trigger('componentresize');
+ }
+
+ return;
+ } // Not setting a value, so getting it
+ // Make sure element exists
+
+
+ if (!this.el_) {
+ return 0;
+ } // Get dimension value from style
+
+
+ var val = this.el_.style[widthOrHeight];
+ var pxIndex = val.indexOf('px');
+
+ if (pxIndex !== -1) {
+ // Return the pixel value with no 'px'
+ return parseInt(val.slice(0, pxIndex), 10);
+ } // No px so using % or no style was set, so falling back to offsetWidth/height
+ // If component has display:none, offset will return 0
+ // TODO: handle display:none and no dimension style using px
+
+
+ return parseInt(this.el_['offset' + toTitleCase(widthOrHeight)], 10);
+ }
+ /**
+ * Get the computed width or the height of the component's element.
+ *
+ * Uses `window.getComputedStyle`.
+ *
+ * @param {string} widthOrHeight
+ * A string containing 'width' or 'height'. Whichever one you want to get.
+ *
+ * @return {number}
+ * The dimension that gets asked for or 0 if nothing was set
+ * for that dimension.
+ */
+ ;
+
+ _proto.currentDimension = function currentDimension(widthOrHeight) {
+ var computedWidthOrHeight = 0;
+
+ if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {
+ throw new Error('currentDimension only accepts width or height value');
+ }
+
+ computedWidthOrHeight = computedStyle(this.el_, widthOrHeight); // remove 'px' from variable and parse as integer
+
+ computedWidthOrHeight = parseFloat(computedWidthOrHeight); // if the computed value is still 0, it's possible that the browser is lying
+ // and we want to check the offset values.
+ // This code also runs wherever getComputedStyle doesn't exist.
+
+ if (computedWidthOrHeight === 0 || isNaN(computedWidthOrHeight)) {
+ var rule = "offset" + toTitleCase(widthOrHeight);
+ computedWidthOrHeight = this.el_[rule];
+ }
+
+ return computedWidthOrHeight;
+ }
+ /**
+ * An object that contains width and height values of the `Component`s
+ * computed style. Uses `window.getComputedStyle`.
+ *
+ * @typedef {Object} Component~DimensionObject
+ *
+ * @property {number} width
+ * The width of the `Component`s computed style.
+ *
+ * @property {number} height
+ * The height of the `Component`s computed style.
+ */
+
+ /**
+ * Get an object that contains computed width and height values of the
+ * component's element.
+ *
+ * Uses `window.getComputedStyle`.
+ *
+ * @return {Component~DimensionObject}
+ * The computed dimensions of the component's element.
+ */
+ ;
+
+ _proto.currentDimensions = function currentDimensions() {
+ return {
+ width: this.currentDimension('width'),
+ height: this.currentDimension('height')
+ };
+ }
+ /**
+ * Get the computed width of the component's element.
+ *
+ * Uses `window.getComputedStyle`.
+ *
+ * @return {number}
+ * The computed width of the component's element.
+ */
+ ;
+
+ _proto.currentWidth = function currentWidth() {
+ return this.currentDimension('width');
+ }
+ /**
+ * Get the computed height of the component's element.
+ *
+ * Uses `window.getComputedStyle`.
+ *
+ * @return {number}
+ * The computed height of the component's element.
+ */
+ ;
+
+ _proto.currentHeight = function currentHeight() {
+ return this.currentDimension('height');
+ }
+ /**
+ * Set the focus to this component
+ */
+ ;
+
+ _proto.focus = function focus() {
+ this.el_.focus();
+ }
+ /**
+ * Remove the focus from this component
+ */
+ ;
+
+ _proto.blur = function blur() {
+ this.el_.blur();
+ }
+ /**
+ * When this Component receives a `keydown` event which it does not process,
+ * it passes the event to the Player for handling.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ */
+ ;
+
+ _proto.handleKeyDown = function handleKeyDown(event) {
+ if (this.player_) {
+ // We only stop propagation here because we want unhandled events to fall
+ // back to the browser.
+ event.stopPropagation();
+ this.player_.handleKeyDown(event);
+ }
+ }
+ /**
+ * Many components used to have a `handleKeyPress` method, which was poorly
+ * named because it listened to a `keydown` event. This method name now
+ * delegates to `handleKeyDown`. This means anyone calling `handleKeyPress`
+ * will not see their method calls stop working.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to be called.
+ */
+ ;
+
+ _proto.handleKeyPress = function handleKeyPress(event) {
+ this.handleKeyDown(event);
+ }
+ /**
+ * Emit a 'tap' events when touch event support gets detected. This gets used to
+ * support toggling the controls through a tap on the video. They get enabled
+ * because every sub-component would have extra overhead otherwise.
+ *
+ * @private
+ * @fires Component#tap
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchleave
+ * @listens Component#touchcancel
+ * @listens Component#touchend
+ */
+ ;
+
+ _proto.emitTapEvents = function emitTapEvents() {
+ // Track the start time so we can determine how long the touch lasted
+ var touchStart = 0;
+ var firstTouch = null; // Maximum movement allowed during a touch event to still be considered a tap
+ // Other popular libs use anywhere from 2 (hammer.js) to 15,
+ // so 10 seems like a nice, round number.
+
+ var tapMovementThreshold = 10; // The maximum length a touch can be while still being considered a tap
+
+ var touchTimeThreshold = 200;
+ var couldBeTap;
+ this.on('touchstart', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length === 1) {
+ // Copy pageX/pageY from the object
+ firstTouch = {
+ pageX: event.touches[0].pageX,
+ pageY: event.touches[0].pageY
+ }; // Record start time so we can detect a tap vs. "touch and hold"
+
+ touchStart = window$1.performance.now(); // Reset couldBeTap tracking
+
+ couldBeTap = true;
+ }
+ });
+ this.on('touchmove', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length > 1) {
+ couldBeTap = false;
+ } else if (firstTouch) {
+ // Some devices will throw touchmoves for all but the slightest of taps.
+ // So, if we moved only a small distance, this could still be a tap
+ var xdiff = event.touches[0].pageX - firstTouch.pageX;
+ var ydiff = event.touches[0].pageY - firstTouch.pageY;
+ var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);
+
+ if (touchDistance > tapMovementThreshold) {
+ couldBeTap = false;
+ }
+ }
+ });
+
+ var noTap = function noTap() {
+ couldBeTap = false;
+ }; // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s
+
+
+ this.on('touchleave', noTap);
+ this.on('touchcancel', noTap); // When the touch ends, measure how long it took and trigger the appropriate
+ // event
+
+ this.on('touchend', function (event) {
+ firstTouch = null; // Proceed only if the touchmove/leave/cancel event didn't happen
+
+ if (couldBeTap === true) {
+ // Measure how long the touch lasted
+ var touchTime = window$1.performance.now() - touchStart; // Make sure the touch was less than the threshold to be considered a tap
+
+ if (touchTime < touchTimeThreshold) {
+ // Don't let browser turn this into a click
+ event.preventDefault();
+ /**
+ * Triggered when a `Component` is tapped.
+ *
+ * @event Component#tap
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('tap'); // It may be good to copy the touchend event object and change the
+ // type to tap, if the other event properties aren't exact after
+ // Events.fixEvent runs (e.g. event.target)
+ }
+ }
+ });
+ }
+ /**
+ * This function reports user activity whenever touch events happen. This can get
+ * turned off by any sub-components that wants touch events to act another way.
+ *
+ * Report user touch activity when touch events occur. User activity gets used to
+ * determine when controls should show/hide. It is simple when it comes to mouse
+ * events, because any mouse event should show the controls. So we capture mouse
+ * events that bubble up to the player and report activity when that happens.
+ * With touch events it isn't as easy as `touchstart` and `touchend` toggle player
+ * controls. So touch events can't help us at the player level either.
+ *
+ * User activity gets checked asynchronously. So what could happen is a tap event
+ * on the video turns the controls off. Then the `touchend` event bubbles up to
+ * the player. Which, if it reported user activity, would turn the controls right
+ * back on. We also don't want to completely block touch events from bubbling up.
+ * Furthermore a `touchmove` event and anything other than a tap, should not turn
+ * controls back on.
+ *
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchend
+ * @listens Component#touchcancel
+ */
+ ;
+
+ _proto.enableTouchActivity = function enableTouchActivity() {
+ // Don't continue if the root player doesn't support reporting user activity
+ if (!this.player() || !this.player().reportUserActivity) {
+ return;
+ } // listener for reporting that the user is active
+
+
+ var report = bind(this.player(), this.player().reportUserActivity);
+ var touchHolding;
+ this.on('touchstart', function () {
+ report(); // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+
+ this.clearInterval(touchHolding); // report at the same interval as activityCheck
+
+ touchHolding = this.setInterval(report, 250);
+ });
+
+ var touchEnd = function touchEnd(event) {
+ report(); // stop the interval that maintains activity if the touch is holding
+
+ this.clearInterval(touchHolding);
+ };
+
+ this.on('touchmove', report);
+ this.on('touchend', touchEnd);
+ this.on('touchcancel', touchEnd);
+ }
+ /**
+ * A callback that has no parameters and is bound into `Component`s context.
+ *
+ * @callback Component~GenericCallback
+ * @this Component
+ */
+
+ /**
+ * Creates a function that runs after an `x` millisecond timeout. This function is a
+ * wrapper around `window.setTimeout`. There are a few reasons to use this one
+ * instead though:
+ * 1. It gets cleared via {@link Component#clearTimeout} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will gets turned into a {@link Component~GenericCallback}
+ *
+ * > Note: You can't use `window.clearTimeout` on the id returned by this function. This
+ * will cause its dispose listener not to get cleaned up! Please use
+ * {@link Component#clearTimeout} or {@link Component#dispose} instead.
+ *
+ * @param {Component~GenericCallback} fn
+ * The function that will be run after `timeout`.
+ *
+ * @param {number} timeout
+ * Timeout in milliseconds to delay before executing the specified function.
+ *
+ * @return {number}
+ * Returns a timeout ID that gets used to identify the timeout. It can also
+ * get used in {@link Component#clearTimeout} to clear the timeout that
+ * was set.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}
+ */
+ ;
+
+ _proto.setTimeout = function setTimeout(fn, timeout) {
+ var _this2 = this;
+
+ // declare as variables so they are properly available in timeout function
+ // eslint-disable-next-line
+ var timeoutId;
+ fn = bind(this, fn);
+ this.clearTimersOnDispose_();
+ timeoutId = window$1.setTimeout(function () {
+ if (_this2.setTimeoutIds_.has(timeoutId)) {
+ _this2.setTimeoutIds_["delete"](timeoutId);
+ }
+
+ fn();
+ }, timeout);
+ this.setTimeoutIds_.add(timeoutId);
+ return timeoutId;
+ }
+ /**
+ * Clears a timeout that gets created via `window.setTimeout` or
+ * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}
+ * use this function instead of `window.clearTimout`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} timeoutId
+ * The id of the timeout to clear. The return value of
+ * {@link Component#setTimeout} or `window.setTimeout`.
+ *
+ * @return {number}
+ * Returns the timeout id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}
+ */
+ ;
+
+ _proto.clearTimeout = function clearTimeout(timeoutId) {
+ if (this.setTimeoutIds_.has(timeoutId)) {
+ this.setTimeoutIds_["delete"](timeoutId);
+ window$1.clearTimeout(timeoutId);
+ }
+
+ return timeoutId;
+ }
+ /**
+ * Creates a function that gets run every `x` milliseconds. This function is a wrapper
+ * around `window.setInterval`. There are a few reasons to use this one instead though.
+ * 1. It gets cleared via {@link Component#clearInterval} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will be a {@link Component~GenericCallback}
+ *
+ * @param {Component~GenericCallback} fn
+ * The function to run every `x` seconds.
+ *
+ * @param {number} interval
+ * Execute the specified function every `x` milliseconds.
+ *
+ * @return {number}
+ * Returns an id that can be used to identify the interval. It can also be be used in
+ * {@link Component#clearInterval} to clear the interval.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}
+ */
+ ;
+
+ _proto.setInterval = function setInterval(fn, interval) {
+ fn = bind(this, fn);
+ this.clearTimersOnDispose_();
+ var intervalId = window$1.setInterval(fn, interval);
+ this.setIntervalIds_.add(intervalId);
+ return intervalId;
+ }
+ /**
+ * Clears an interval that gets created via `window.setInterval` or
+ * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval}
+ * use this function instead of `window.clearInterval`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} intervalId
+ * The id of the interval to clear. The return value of
+ * {@link Component#setInterval} or `window.setInterval`.
+ *
+ * @return {number}
+ * Returns the interval id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}
+ */
+ ;
+
+ _proto.clearInterval = function clearInterval(intervalId) {
+ if (this.setIntervalIds_.has(intervalId)) {
+ this.setIntervalIds_["delete"](intervalId);
+ window$1.clearInterval(intervalId);
+ }
+
+ return intervalId;
+ }
+ /**
+ * Queues up a callback to be passed to requestAnimationFrame (rAF), but
+ * with a few extra bonuses:
+ *
+ * - Supports browsers that do not support rAF by falling back to
+ * {@link Component#setTimeout}.
+ *
+ * - The callback is turned into a {@link Component~GenericCallback} (i.e.
+ * bound to the component).
+ *
+ * - Automatic cancellation of the rAF callback is handled if the component
+ * is disposed before it is called.
+ *
+ * @param {Component~GenericCallback} fn
+ * A function that will be bound to this component and executed just
+ * before the browser's next repaint.
+ *
+ * @return {number}
+ * Returns an rAF ID that gets used to identify the timeout. It can
+ * also be used in {@link Component#cancelAnimationFrame} to cancel
+ * the animation frame callback.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}
+ */
+ ;
+
+ _proto.requestAnimationFrame = function requestAnimationFrame(fn) {
+ var _this3 = this;
+
+ // Fall back to using a timer.
+ if (!this.supportsRaf_) {
+ return this.setTimeout(fn, 1000 / 60);
+ }
+
+ this.clearTimersOnDispose_(); // declare as variables so they are properly available in rAF function
+ // eslint-disable-next-line
+
+ var id;
+ fn = bind(this, fn);
+ id = window$1.requestAnimationFrame(function () {
+ if (_this3.rafIds_.has(id)) {
+ _this3.rafIds_["delete"](id);
+ }
+
+ fn();
+ });
+ this.rafIds_.add(id);
+ return id;
+ }
+ /**
+ * Cancels a queued callback passed to {@link Component#requestAnimationFrame}
+ * (rAF).
+ *
+ * If you queue an rAF callback via {@link Component#requestAnimationFrame},
+ * use this function instead of `window.cancelAnimationFrame`. If you don't,
+ * your dispose listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} id
+ * The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.
+ *
+ * @return {number}
+ * Returns the rAF ID that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}
+ */
+ ;
+
+ _proto.cancelAnimationFrame = function cancelAnimationFrame(id) {
+ // Fall back to using a timer.
+ if (!this.supportsRaf_) {
+ return this.clearTimeout(id);
+ }
+
+ if (this.rafIds_.has(id)) {
+ this.rafIds_["delete"](id);
+ window$1.cancelAnimationFrame(id);
+ }
+
+ return id;
+ }
+ /**
+ * A function to setup `requestAnimationFrame`, `setTimeout`,
+ * and `setInterval`, clearing on dispose.
+ *
+ * > Previously each timer added and removed dispose listeners on it's own.
+ * For better performance it was decided to batch them all, and use `Set`s
+ * to track outstanding timer ids.
+ *
+ * @private
+ */
+ ;
+
+ _proto.clearTimersOnDispose_ = function clearTimersOnDispose_() {
+ var _this4 = this;
+
+ if (this.clearingTimersOnDispose_) {
+ return;
+ }
+
+ this.clearingTimersOnDispose_ = true;
+ this.one('dispose', function () {
+ [['rafIds_', 'cancelAnimationFrame'], ['setTimeoutIds_', 'clearTimeout'], ['setIntervalIds_', 'clearInterval']].forEach(function (_ref) {
+ var idName = _ref[0],
+ cancelName = _ref[1];
+
+ _this4[idName].forEach(_this4[cancelName], _this4);
+ });
+ _this4.clearingTimersOnDispose_ = false;
+ });
+ }
+ /**
+ * Register a `Component` with `videojs` given the name and the component.
+ *
+ * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s
+ * should be registered using {@link Tech.registerTech} or
+ * {@link videojs:videojs.registerTech}.
+ *
+ * > NOTE: This function can also be seen on videojs as
+ * {@link videojs:videojs.registerComponent}.
+ *
+ * @param {string} name
+ * The name of the `Component` to register.
+ *
+ * @param {Component} ComponentToRegister
+ * The `Component` class to register.
+ *
+ * @return {Component}
+ * The `Component` that was registered.
+ */
+ ;
+
+ Component.registerComponent = function registerComponent(name, ComponentToRegister) {
+ if (typeof name !== 'string' || !name) {
+ throw new Error("Illegal component name, \"" + name + "\"; must be a non-empty string.");
+ }
+
+ var Tech = Component.getComponent('Tech'); // We need to make sure this check is only done if Tech has been registered.
+
+ var isTech = Tech && Tech.isTech(ComponentToRegister);
+ var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype);
+
+ if (isTech || !isComp) {
+ var reason;
+
+ if (isTech) {
+ reason = 'techs must be registered using Tech.registerTech()';
+ } else {
+ reason = 'must be a Component subclass';
+ }
+
+ throw new Error("Illegal component, \"" + name + "\"; " + reason + ".");
+ }
+
+ name = toTitleCase(name);
+
+ if (!Component.components_) {
+ Component.components_ = {};
+ }
+
+ var Player = Component.getComponent('Player');
+
+ if (name === 'Player' && Player && Player.players) {
+ var players = Player.players;
+ var playerNames = Object.keys(players); // If we have players that were disposed, then their name will still be
+ // in Players.players. So, we must loop through and verify that the value
+ // for each item is not null. This allows registration of the Player component
+ // after all players have been disposed or before any were created.
+
+ if (players && playerNames.length > 0 && playerNames.map(function (pname) {
+ return players[pname];
+ }).every(Boolean)) {
+ throw new Error('Can not register Player component after player has been created.');
+ }
+ }
+
+ Component.components_[name] = ComponentToRegister;
+ Component.components_[toLowerCase(name)] = ComponentToRegister;
+ return ComponentToRegister;
+ }
+ /**
+ * Get a `Component` based on the name it was registered with.
+ *
+ * @param {string} name
+ * The Name of the component to get.
+ *
+ * @return {Component}
+ * The `Component` that got registered under the given name.
+ *
+ * @deprecated In `videojs` 6 this will not return `Component`s that were not
+ * registered using {@link Component.registerComponent}. Currently we
+ * check the global `videojs` object for a `Component` name and
+ * return that if it exists.
+ */
+ ;
+
+ Component.getComponent = function getComponent(name) {
+ if (!name || !Component.components_) {
+ return;
+ }
+
+ return Component.components_[name];
+ };
+
+ return Component;
+}();
+/**
+ * Whether or not this component supports `requestAnimationFrame`.
+ *
+ * This is exposed primarily for testing purposes.
+ *
+ * @private
+ * @type {Boolean}
+ */
+
+
+Component.prototype.supportsRaf_ = typeof window$1.requestAnimationFrame === 'function' && typeof window$1.cancelAnimationFrame === 'function';
+Component.registerComponent('Component', Component);
+
+function _inheritsLoose(subClass, superClass) {
+ subClass.prototype = Object.create(superClass.prototype);
+ subClass.prototype.constructor = subClass;
+ subClass.__proto__ = superClass;
+}
+
+function _setPrototypeOf(o, p) {
+ _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
+ o.__proto__ = p;
+ return o;
+ };
+
+ return _setPrototypeOf(o, p);
+}
+
+function isNativeReflectConstruct() {
+ if (typeof Reflect === "undefined" || !Reflect.construct) return false;
+ if (Reflect.construct.sham) return false;
+ if (typeof Proxy === "function") return true;
+
+ try {
+ Date.prototype.toString.call(Reflect.construct(Date, [], function () {}));
+ return true;
+ } catch (e) {
+ return false;
+ }
+}
+
+function _construct(Parent, args, Class) {
+ if (isNativeReflectConstruct()) {
+ _construct = Reflect.construct;
+ } else {
+ _construct = function _construct(Parent, args, Class) {
+ var a = [null];
+ a.push.apply(a, args);
+ var Constructor = Function.bind.apply(Parent, a);
+ var instance = new Constructor();
+ if (Class) _setPrototypeOf(instance, Class.prototype);
+ return instance;
+ };
+ }
+
+ return _construct.apply(null, arguments);
+}
+
+function _assertThisInitialized(self) {
+ if (self === void 0) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return self;
+}
+
+/**
+ * @file browser.js
+ * @module browser
+ */
+var USER_AGENT = window$1.navigator && window$1.navigator.userAgent || '';
+var webkitVersionMap = /AppleWebKit\/([\d.]+)/i.exec(USER_AGENT);
+var appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null;
+/**
+ * Whether or not this device is an iPad.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+
+var IS_IPAD = /iPad/i.test(USER_AGENT);
+/**
+ * Whether or not this device is an iPhone.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+// The Facebook app's UIWebView identifies as both an iPhone and iPad, so
+// to identify iPhones, we need to exclude iPads.
+// http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/
+
+var IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;
+/**
+ * Whether or not this device is an iPod.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+
+var IS_IPOD = /iPod/i.test(USER_AGENT);
+/**
+ * Whether or not this is an iOS device.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+
+var IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;
+/**
+ * The detected iOS version - or `null`.
+ *
+ * @static
+ * @const
+ * @type {string|null}
+ */
+
+var IOS_VERSION = function () {
+ var match = USER_AGENT.match(/OS (\d+)_/i);
+
+ if (match && match[1]) {
+ return match[1];
+ }
+
+ return null;
+}();
+/**
+ * Whether or not this is an Android device.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+
+var IS_ANDROID = /Android/i.test(USER_AGENT);
+/**
+ * The detected Android version - or `null`.
+ *
+ * @static
+ * @const
+ * @type {number|string|null}
+ */
+
+var ANDROID_VERSION = function () {
+ // This matches Android Major.Minor.Patch versions
+ // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned
+ var match = USER_AGENT.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i);
+
+ if (!match) {
+ return null;
+ }
+
+ var major = match[1] && parseFloat(match[1]);
+ var minor = match[2] && parseFloat(match[2]);
+
+ if (major && minor) {
+ return parseFloat(match[1] + '.' + match[2]);
+ } else if (major) {
+ return major;
+ }
+
+ return null;
+}();
+/**
+ * Whether or not this is a native Android browser.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+
+var IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537;
+/**
+ * Whether or not this is Mozilla Firefox.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+
+var IS_FIREFOX = /Firefox/i.test(USER_AGENT);
+/**
+ * Whether or not this is Microsoft Edge.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+
+var IS_EDGE = /Edge/i.test(USER_AGENT);
+/**
+ * Whether or not this is Google Chrome.
+ *
+ * This will also be `true` for Chrome on iOS, which will have different support
+ * as it is actually Safari under the hood.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+
+var IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT));
+/**
+ * The detected Google Chrome version - or `null`.
+ *
+ * @static
+ * @const
+ * @type {number|null}
+ */
+
+var CHROME_VERSION = function () {
+ var match = USER_AGENT.match(/(Chrome|CriOS)\/(\d+)/);
+
+ if (match && match[2]) {
+ return parseFloat(match[2]);
+ }
+
+ return null;
+}();
+/**
+ * The detected Internet Explorer version - or `null`.
+ *
+ * @static
+ * @const
+ * @type {number|null}
+ */
+
+var IE_VERSION = function () {
+ var result = /MSIE\s(\d+)\.\d/.exec(USER_AGENT);
+ var version = result && parseFloat(result[1]);
+
+ if (!version && /Trident\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {
+ // IE 11 has a different user agent string than other IE versions
+ version = 11.0;
+ }
+
+ return version;
+}();
+/**
+ * Whether or not this is desktop Safari.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+
+var IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;
+/**
+ * Whether or not this is any flavor of Safari - including iOS.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+
+var IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;
+/**
+ * Whether or not this is a Windows machine.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+
+var IS_WINDOWS = /Windows/i.test(USER_AGENT);
+/**
+ * Whether or not this device is touch-enabled.
+ *
+ * @static
+ * @const
+ * @type {Boolean}
+ */
+
+var TOUCH_ENABLED = isReal() && ('ontouchstart' in window$1 || window$1.navigator.maxTouchPoints || window$1.DocumentTouch && window$1.document instanceof window$1.DocumentTouch);
+
+var browser = /*#__PURE__*/Object.freeze({
+ IS_IPAD: IS_IPAD,
+ IS_IPHONE: IS_IPHONE,
+ IS_IPOD: IS_IPOD,
+ IS_IOS: IS_IOS,
+ IOS_VERSION: IOS_VERSION,
+ IS_ANDROID: IS_ANDROID,
+ ANDROID_VERSION: ANDROID_VERSION,
+ IS_NATIVE_ANDROID: IS_NATIVE_ANDROID,
+ IS_FIREFOX: IS_FIREFOX,
+ IS_EDGE: IS_EDGE,
+ IS_CHROME: IS_CHROME,
+ CHROME_VERSION: CHROME_VERSION,
+ IE_VERSION: IE_VERSION,
+ IS_SAFARI: IS_SAFARI,
+ IS_ANY_SAFARI: IS_ANY_SAFARI,
+ IS_WINDOWS: IS_WINDOWS,
+ TOUCH_ENABLED: TOUCH_ENABLED
+});
+
+/**
+ * @file time-ranges.js
+ * @module time-ranges
+ */
+
+/**
+ * Returns the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @typedef {Function} TimeRangeIndex
+ *
+ * @param {number} [index=0]
+ * The range number to return the time for.
+ *
+ * @return {number}
+ * The time offset at the specified index.
+ *
+ * @deprecated The index argument must be provided.
+ * In the future, leaving it out will throw an error.
+ */
+
+/**
+ * An object that contains ranges of time.
+ *
+ * @typedef {Object} TimeRange
+ *
+ * @property {number} length
+ * The number of time ranges represented by this object.
+ *
+ * @property {module:time-ranges~TimeRangeIndex} start
+ * Returns the time offset at which a specified time range begins.
+ *
+ * @property {module:time-ranges~TimeRangeIndex} end
+ * Returns the time offset at which a specified time range ends.
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges
+ */
+
+/**
+ * Check if any of the time ranges are over the maximum index.
+ *
+ * @private
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {number} index
+ * The index to check
+ *
+ * @param {number} maxIndex
+ * The maximum possible index
+ *
+ * @throws {Error} if the timeRanges provided are over the maxIndex
+ */
+function rangeCheck(fnName, index, maxIndex) {
+ if (typeof index !== 'number' || index < 0 || index > maxIndex) {
+ throw new Error("Failed to execute '" + fnName + "' on 'TimeRanges': The index provided (" + index + ") is non-numeric or out of bounds (0-" + maxIndex + ").");
+ }
+}
+/**
+ * Get the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @private
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {string} valueIndex
+ * The property that should be used to get the time. should be
+ * 'start' or 'end'
+ *
+ * @param {Array} ranges
+ * An array of time ranges
+ *
+ * @param {Array} [rangeIndex=0]
+ * The index to start the search at
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ * @deprecated rangeIndex must be set to a value, in the future this will throw an error.
+ * @throws {Error} if rangeIndex is more than the length of ranges
+ */
+
+
+function getRange(fnName, valueIndex, ranges, rangeIndex) {
+ rangeCheck(fnName, rangeIndex, ranges.length - 1);
+ return ranges[rangeIndex][valueIndex];
+}
+/**
+ * Create a time range object given ranges of time.
+ *
+ * @private
+ * @param {Array} [ranges]
+ * An array of time ranges.
+ */
+
+
+function createTimeRangesObj(ranges) {
+ if (ranges === undefined || ranges.length === 0) {
+ return {
+ length: 0,
+ start: function start() {
+ throw new Error('This TimeRanges object is empty');
+ },
+ end: function end() {
+ throw new Error('This TimeRanges object is empty');
+ }
+ };
+ }
+
+ return {
+ length: ranges.length,
+ start: getRange.bind(null, 'start', 0, ranges),
+ end: getRange.bind(null, 'end', 1, ranges)
+ };
+}
+/**
+ * Create a `TimeRange` object which mimics an
+ * {@link https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges|HTML5 TimeRanges instance}.
+ *
+ * @param {number|Array[]} start
+ * The start of a single range (a number) or an array of ranges (an
+ * array of arrays of two numbers each).
+ *
+ * @param {number} end
+ * The end of a single range. Cannot be used with the array form of
+ * the `start` argument.
+ */
+
+
+function createTimeRanges(start, end) {
+ if (Array.isArray(start)) {
+ return createTimeRangesObj(start);
+ } else if (start === undefined || end === undefined) {
+ return createTimeRangesObj();
+ }
+
+ return createTimeRangesObj([[start, end]]);
+}
+
+/**
+ * @file buffer.js
+ * @module buffer
+ */
+/**
+ * Compute the percentage of the media that has been buffered.
+ *
+ * @param {TimeRange} buffered
+ * The current `TimeRange` object representing buffered time ranges
+ *
+ * @param {number} duration
+ * Total duration of the media
+ *
+ * @return {number}
+ * Percent buffered of the total duration in decimal form.
+ */
+
+function bufferedPercent(buffered, duration) {
+ var bufferedDuration = 0;
+ var start;
+ var end;
+
+ if (!duration) {
+ return 0;
+ }
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ for (var i = 0; i < buffered.length; i++) {
+ start = buffered.start(i);
+ end = buffered.end(i); // buffered end can be bigger than duration by a very small fraction
+
+ if (end > duration) {
+ end = duration;
+ }
+
+ bufferedDuration += end - start;
+ }
+
+ return bufferedDuration / duration;
+}
+
+/**
+ * @file fullscreen-api.js
+ * @module fullscreen-api
+ * @private
+ */
+/**
+ * Store the browser-specific methods for the fullscreen API.
+ *
+ * @type {Object}
+ * @see [Specification]{@link https://fullscreen.spec.whatwg.org}
+ * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}
+ */
+
+var FullscreenApi = {
+ prefixed: true
+}; // browser API methods
+
+var apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror', 'fullscreen'], // WebKit
+['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror', '-webkit-full-screen'], // Mozilla
+['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror', '-moz-full-screen'], // Microsoft
+['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError', '-ms-fullscreen']];
+var specApi = apiMap[0];
+var browserApi; // determine the supported set of functions
+
+for (var i = 0; i < apiMap.length; i++) {
+ // check for exitFullscreen function
+ if (apiMap[i][1] in document) {
+ browserApi = apiMap[i];
+ break;
+ }
+} // map the browser API names to the spec API names
+
+
+if (browserApi) {
+ for (var _i = 0; _i < browserApi.length; _i++) {
+ FullscreenApi[specApi[_i]] = browserApi[_i];
+ }
+
+ FullscreenApi.prefixed = browserApi[0] !== specApi[0];
+}
+
+/**
+ * @file media-error.js
+ */
+/**
+ * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.
+ *
+ * @param {number|string|Object|MediaError} value
+ * This can be of multiple types:
+ * - number: should be a standard error code
+ * - string: an error message (the code will be 0)
+ * - Object: arbitrary properties
+ * - `MediaError` (native): used to populate a video.js `MediaError` object
+ * - `MediaError` (video.js): will return itself if it's already a
+ * video.js `MediaError` object.
+ *
+ * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}
+ * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}
+ *
+ * @class MediaError
+ */
+
+function MediaError(value) {
+ // Allow redundant calls to this constructor to avoid having `instanceof`
+ // checks peppered around the code.
+ if (value instanceof MediaError) {
+ return value;
+ }
+
+ if (typeof value === 'number') {
+ this.code = value;
+ } else if (typeof value === 'string') {
+ // default code is zero, so this is a custom error
+ this.message = value;
+ } else if (isObject(value)) {
+ // We assign the `code` property manually because native `MediaError` objects
+ // do not expose it as an own/enumerable property of the object.
+ if (typeof value.code === 'number') {
+ this.code = value.code;
+ }
+
+ assign(this, value);
+ }
+
+ if (!this.message) {
+ this.message = MediaError.defaultMessages[this.code] || '';
+ }
+}
+/**
+ * The error code that refers two one of the defined `MediaError` types
+ *
+ * @type {Number}
+ */
+
+
+MediaError.prototype.code = 0;
+/**
+ * An optional message that to show with the error. Message is not part of the HTML5
+ * video spec but allows for more informative custom errors.
+ *
+ * @type {String}
+ */
+
+MediaError.prototype.message = '';
+/**
+ * An optional status code that can be set by plugins to allow even more detail about
+ * the error. For example a plugin might provide a specific HTTP status code and an
+ * error message for that code. Then when the plugin gets that error this class will
+ * know how to display an error message for it. This allows a custom message to show
+ * up on the `Player` error overlay.
+ *
+ * @type {Array}
+ */
+
+MediaError.prototype.status = null;
+/**
+ * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the
+ * specification listed under {@link MediaError} for more information.
+ *
+ * @enum {array}
+ * @readonly
+ * @property {string} 0 - MEDIA_ERR_CUSTOM
+ * @property {string} 1 - MEDIA_ERR_ABORTED
+ * @property {string} 2 - MEDIA_ERR_NETWORK
+ * @property {string} 3 - MEDIA_ERR_DECODE
+ * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED
+ * @property {string} 5 - MEDIA_ERR_ENCRYPTED
+ */
+
+MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];
+/**
+ * The default `MediaError` messages based on the {@link MediaError.errorTypes}.
+ *
+ * @type {Array}
+ * @constant
+ */
+
+MediaError.defaultMessages = {
+ 1: 'You aborted the media playback',
+ 2: 'A network error caused the media download to fail part-way.',
+ 3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',
+ 4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',
+ 5: 'The media is encrypted and we do not have the keys to decrypt it.'
+}; // Add types as properties on MediaError
+// e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
+
+for (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {
+ MediaError[MediaError.errorTypes[errNum]] = errNum; // values should be accessible on both the class and instance
+
+ MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;
+} // jsdocs for instance/static members added above
+
+/**
+ * Returns whether an object is `Promise`-like (i.e. has a `then` method).
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ *
+ * @return {boolean}
+ * Whether or not the object is `Promise`-like.
+ */
+function isPromise(value) {
+ return value !== undefined && value !== null && typeof value.then === 'function';
+}
+/**
+ * Silence a Promise-like object.
+ *
+ * This is useful for avoiding non-harmful, but potentially confusing "uncaught
+ * play promise" rejection error messages.
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ */
+
+function silencePromise(value) {
+ if (isPromise(value)) {
+ value.then(null, function (e) {});
+ }
+}
+
+/**
+ * @file text-track-list-converter.js Utilities for capturing text track state and
+ * re-creating tracks based on a capture.
+ *
+ * @module text-track-list-converter
+ */
+
+/**
+ * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that
+ * represents the {@link TextTrack}'s state.
+ *
+ * @param {TextTrack} track
+ * The text track to query.
+ *
+ * @return {Object}
+ * A serializable javascript representation of the TextTrack.
+ * @private
+ */
+var trackToJson_ = function trackToJson_(track) {
+ var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {
+ if (track[prop]) {
+ acc[prop] = track[prop];
+ }
+
+ return acc;
+ }, {
+ cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {
+ return {
+ startTime: cue.startTime,
+ endTime: cue.endTime,
+ text: cue.text,
+ id: cue.id
+ };
+ })
+ });
+ return ret;
+};
+/**
+ * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the
+ * state of all {@link TextTrack}s currently configured. The return array is compatible with
+ * {@link text-track-list-converter:jsonToTextTracks}.
+ *
+ * @param {Tech} tech
+ * The tech object to query
+ *
+ * @return {Array}
+ * A serializable javascript representation of the {@link Tech}s
+ * {@link TextTrackList}.
+ */
+
+
+var textTracksToJson = function textTracksToJson(tech) {
+ var trackEls = tech.$$('track');
+ var trackObjs = Array.prototype.map.call(trackEls, function (t) {
+ return t.track;
+ });
+ var tracks = Array.prototype.map.call(trackEls, function (trackEl) {
+ var json = trackToJson_(trackEl.track);
+
+ if (trackEl.src) {
+ json.src = trackEl.src;
+ }
+
+ return json;
+ });
+ return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {
+ return trackObjs.indexOf(track) === -1;
+ }).map(trackToJson_));
+};
+/**
+ * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript
+ * object {@link TextTrack} representations.
+ *
+ * @param {Array} json
+ * An array of `TextTrack` representation objects, like those that would be
+ * produced by `textTracksToJson`.
+ *
+ * @param {Tech} tech
+ * The `Tech` to create the `TextTrack`s on.
+ */
+
+
+var jsonToTextTracks = function jsonToTextTracks(json, tech) {
+ json.forEach(function (track) {
+ var addedTrack = tech.addRemoteTextTrack(track).track;
+
+ if (!track.src && track.cues) {
+ track.cues.forEach(function (cue) {
+ return addedTrack.addCue(cue);
+ });
+ }
+ });
+ return tech.textTracks();
+};
+
+var textTrackConverter = {
+ textTracksToJson: textTracksToJson,
+ jsonToTextTracks: jsonToTextTracks,
+ trackToJson_: trackToJson_
+};
+
+var MODAL_CLASS_NAME = 'vjs-modal-dialog';
+/**
+ * The `ModalDialog` displays over the video and its controls, which blocks
+ * interaction with the player until it is closed.
+ *
+ * Modal dialogs include a "Close" button and will close when that button
+ * is activated - or when ESC is pressed anywhere.
+ *
+ * @extends Component
+ */
+
+var ModalDialog =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(ModalDialog, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Mixed} [options.content=undefined]
+ * Provide customized content for this modal.
+ *
+ * @param {string} [options.description]
+ * A text description for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.fillAlways=false]
+ * Normally, modals are automatically filled only the first time
+ * they open. This tells the modal to refresh its content
+ * every time it opens.
+ *
+ * @param {string} [options.label]
+ * A text label for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.pauseOnOpen=true]
+ * If `true`, playback will will be paused if playing when
+ * the modal opens, and resumed when it closes.
+ *
+ * @param {boolean} [options.temporary=true]
+ * If `true`, the modal can only be opened once; it will be
+ * disposed as soon as it's closed.
+ *
+ * @param {boolean} [options.uncloseable=false]
+ * If `true`, the user will not be able to close the modal
+ * through the UI in the normal ways. Programmatic closing is
+ * still possible.
+ */
+ function ModalDialog(player, options) {
+ var _this;
+
+ _this = _Component.call(this, player, options) || this;
+ _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;
+
+ _this.closeable(!_this.options_.uncloseable);
+
+ _this.content(_this.options_.content); // Make sure the contentEl is defined AFTER any children are initialized
+ // because we only want the contents of the modal in the contentEl
+ // (not the UI elements like the close button).
+
+
+ _this.contentEl_ = createEl('div', {
+ className: MODAL_CLASS_NAME + "-content"
+ }, {
+ role: 'document'
+ });
+ _this.descEl_ = createEl('p', {
+ className: MODAL_CLASS_NAME + "-description vjs-control-text",
+ id: _this.el().getAttribute('aria-describedby')
+ });
+ textContent(_this.descEl_, _this.description());
+
+ _this.el_.appendChild(_this.descEl_);
+
+ _this.el_.appendChild(_this.contentEl_);
+
+ return _this;
+ }
+ /**
+ * Create the `ModalDialog`'s DOM element
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ var _proto = ModalDialog.prototype;
+
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass(),
+ tabIndex: -1
+ }, {
+ 'aria-describedby': this.id() + "_description",
+ 'aria-hidden': 'true',
+ 'aria-label': this.label(),
+ 'role': 'dialog'
+ });
+ };
+
+ _proto.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.descEl_ = null;
+ this.previouslyActiveEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ ;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return MODAL_CLASS_NAME + " vjs-hidden " + _Component.prototype.buildCSSClass.call(this);
+ }
+ /**
+ * Returns the label string for this modal. Primarily used for accessibility.
+ *
+ * @return {string}
+ * the localized or raw label of this modal.
+ */
+ ;
+
+ _proto.label = function label() {
+ return this.localize(this.options_.label || 'Modal Window');
+ }
+ /**
+ * Returns the description string for this modal. Primarily used for
+ * accessibility.
+ *
+ * @return {string}
+ * The localized or raw description of this modal.
+ */
+ ;
+
+ _proto.description = function description() {
+ var desc = this.options_.description || this.localize('This is a modal window.'); // Append a universal closeability message if the modal is closeable.
+
+ if (this.closeable()) {
+ desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');
+ }
+
+ return desc;
+ }
+ /**
+ * Opens the modal.
+ *
+ * @fires ModalDialog#beforemodalopen
+ * @fires ModalDialog#modalopen
+ */
+ ;
+
+ _proto.open = function open() {
+ if (!this.opened_) {
+ var player = this.player();
+ /**
+ * Fired just before a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#beforemodalopen
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('beforemodalopen');
+ this.opened_ = true; // Fill content if the modal has never opened before and
+ // never been filled.
+
+ if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {
+ this.fill();
+ } // If the player was playing, pause it and take note of its previously
+ // playing state.
+
+
+ this.wasPlaying_ = !player.paused();
+
+ if (this.options_.pauseOnOpen && this.wasPlaying_) {
+ player.pause();
+ }
+
+ this.on('keydown', this.handleKeyDown); // Hide controls and note if they were enabled.
+
+ this.hadControls_ = player.controls();
+ player.controls(false);
+ this.show();
+ this.conditionalFocus_();
+ this.el().setAttribute('aria-hidden', 'false');
+ /**
+ * Fired just after a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#modalopen
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('modalopen');
+ this.hasBeenOpened_ = true;
+ }
+ }
+ /**
+ * If the `ModalDialog` is currently open or closed.
+ *
+ * @param {boolean} [value]
+ * If given, it will open (`true`) or close (`false`) the modal.
+ *
+ * @return {boolean}
+ * the current open state of the modaldialog
+ */
+ ;
+
+ _proto.opened = function opened(value) {
+ if (typeof value === 'boolean') {
+ this[value ? 'open' : 'close']();
+ }
+
+ return this.opened_;
+ }
+ /**
+ * Closes the modal, does nothing if the `ModalDialog` is
+ * not open.
+ *
+ * @fires ModalDialog#beforemodalclose
+ * @fires ModalDialog#modalclose
+ */
+ ;
+
+ _proto.close = function close() {
+ if (!this.opened_) {
+ return;
+ }
+
+ var player = this.player();
+ /**
+ * Fired just before a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#beforemodalclose
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('beforemodalclose');
+ this.opened_ = false;
+
+ if (this.wasPlaying_ && this.options_.pauseOnOpen) {
+ player.play();
+ }
+
+ this.off('keydown', this.handleKeyDown);
+
+ if (this.hadControls_) {
+ player.controls(true);
+ }
+
+ this.hide();
+ this.el().setAttribute('aria-hidden', 'true');
+ /**
+ * Fired just after a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#modalclose
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('modalclose');
+ this.conditionalBlur_();
+
+ if (this.options_.temporary) {
+ this.dispose();
+ }
+ }
+ /**
+ * Check to see if the `ModalDialog` is closeable via the UI.
+ *
+ * @param {boolean} [value]
+ * If given as a boolean, it will set the `closeable` option.
+ *
+ * @return {boolean}
+ * Returns the final value of the closable option.
+ */
+ ;
+
+ _proto.closeable = function closeable(value) {
+ if (typeof value === 'boolean') {
+ var closeable = this.closeable_ = !!value;
+ var close = this.getChild('closeButton'); // If this is being made closeable and has no close button, add one.
+
+ if (closeable && !close) {
+ // The close button should be a child of the modal - not its
+ // content element, so temporarily change the content element.
+ var temp = this.contentEl_;
+ this.contentEl_ = this.el_;
+ close = this.addChild('closeButton', {
+ controlText: 'Close Modal Dialog'
+ });
+ this.contentEl_ = temp;
+ this.on(close, 'close', this.close);
+ } // If this is being made uncloseable and has a close button, remove it.
+
+
+ if (!closeable && close) {
+ this.off(close, 'close', this.close);
+ this.removeChild(close);
+ close.dispose();
+ }
+ }
+
+ return this.closeable_;
+ }
+ /**
+ * Fill the modal's content element with the modal's "content" option.
+ * The content element will be emptied before this change takes place.
+ */
+ ;
+
+ _proto.fill = function fill() {
+ this.fillWith(this.content());
+ }
+ /**
+ * Fill the modal's content element with arbitrary content.
+ * The content element will be emptied before this change takes place.
+ *
+ * @fires ModalDialog#beforemodalfill
+ * @fires ModalDialog#modalfill
+ *
+ * @param {Mixed} [content]
+ * The same rules apply to this as apply to the `content` option.
+ */
+ ;
+
+ _proto.fillWith = function fillWith(content) {
+ var contentEl = this.contentEl();
+ var parentEl = contentEl.parentNode;
+ var nextSiblingEl = contentEl.nextSibling;
+ /**
+ * Fired just before a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#beforemodalfill
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('beforemodalfill');
+ this.hasBeenFilled_ = true; // Detach the content element from the DOM before performing
+ // manipulation to avoid modifying the live DOM multiple times.
+
+ parentEl.removeChild(contentEl);
+ this.empty();
+ insertContent(contentEl, content);
+ /**
+ * Fired just after a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#modalfill
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('modalfill'); // Re-inject the re-filled content element.
+
+ if (nextSiblingEl) {
+ parentEl.insertBefore(contentEl, nextSiblingEl);
+ } else {
+ parentEl.appendChild(contentEl);
+ } // make sure that the close button is last in the dialog DOM
+
+
+ var closeButton = this.getChild('closeButton');
+
+ if (closeButton) {
+ parentEl.appendChild(closeButton.el_);
+ }
+ }
+ /**
+ * Empties the content element. This happens anytime the modal is filled.
+ *
+ * @fires ModalDialog#beforemodalempty
+ * @fires ModalDialog#modalempty
+ */
+ ;
+
+ _proto.empty = function empty() {
+ /**
+ * Fired just before a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#beforemodalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalempty');
+ emptyEl(this.contentEl());
+ /**
+ * Fired just after a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#modalempty
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('modalempty');
+ }
+ /**
+ * Gets or sets the modal content, which gets normalized before being
+ * rendered into the DOM.
+ *
+ * This does not update the DOM or fill the modal, but it is called during
+ * that process.
+ *
+ * @param {Mixed} [value]
+ * If defined, sets the internal content value to be used on the
+ * next call(s) to `fill`. This value is normalized before being
+ * inserted. To "clear" the internal content value, pass `null`.
+ *
+ * @return {Mixed}
+ * The current content of the modal dialog
+ */
+ ;
+
+ _proto.content = function content(value) {
+ if (typeof value !== 'undefined') {
+ this.content_ = value;
+ }
+
+ return this.content_;
+ }
+ /**
+ * conditionally focus the modal dialog if focus was previously on the player.
+ *
+ * @private
+ */
+ ;
+
+ _proto.conditionalFocus_ = function conditionalFocus_() {
+ var activeEl = document.activeElement;
+ var playerEl = this.player_.el_;
+ this.previouslyActiveEl_ = null;
+
+ if (playerEl.contains(activeEl) || playerEl === activeEl) {
+ this.previouslyActiveEl_ = activeEl;
+ this.focus();
+ }
+ }
+ /**
+ * conditionally blur the element and refocus the last focused element
+ *
+ * @private
+ */
+ ;
+
+ _proto.conditionalBlur_ = function conditionalBlur_() {
+ if (this.previouslyActiveEl_) {
+ this.previouslyActiveEl_.focus();
+ this.previouslyActiveEl_ = null;
+ }
+ }
+ /**
+ * Keydown handler. Attached when modal is focused.
+ *
+ * @listens keydown
+ */
+ ;
+
+ _proto.handleKeyDown = function handleKeyDown(event) {
+ // Do not allow keydowns to reach out of the modal dialog.
+ event.stopPropagation();
+
+ if (keycode.isEventKey(event, 'Escape') && this.closeable()) {
+ event.preventDefault();
+ this.close();
+ return;
+ } // exit early if it isn't a tab key
+
+
+ if (!keycode.isEventKey(event, 'Tab')) {
+ return;
+ }
+
+ var focusableEls = this.focusableEls_();
+ var activeEl = this.el_.querySelector(':focus');
+ var focusIndex;
+
+ for (var i = 0; i < focusableEls.length; i++) {
+ if (activeEl === focusableEls[i]) {
+ focusIndex = i;
+ break;
+ }
+ }
+
+ if (document.activeElement === this.el_) {
+ focusIndex = 0;
+ }
+
+ if (event.shiftKey && focusIndex === 0) {
+ focusableEls[focusableEls.length - 1].focus();
+ event.preventDefault();
+ } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {
+ focusableEls[0].focus();
+ event.preventDefault();
+ }
+ }
+ /**
+ * get all focusable elements
+ *
+ * @private
+ */
+ ;
+
+ _proto.focusableEls_ = function focusableEls_() {
+ var allChildren = this.el_.querySelectorAll('*');
+ return Array.prototype.filter.call(allChildren, function (child) {
+ return (child instanceof window$1.HTMLAnchorElement || child instanceof window$1.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window$1.HTMLInputElement || child instanceof window$1.HTMLSelectElement || child instanceof window$1.HTMLTextAreaElement || child instanceof window$1.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window$1.HTMLIFrameElement || child instanceof window$1.HTMLObjectElement || child instanceof window$1.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');
+ });
+ };
+
+ return ModalDialog;
+}(Component);
+/**
+ * Default options for `ModalDialog` default options.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ModalDialog.prototype.options_ = {
+ pauseOnOpen: true,
+ temporary: true
+};
+Component.registerComponent('ModalDialog', ModalDialog);
+
+/**
+ * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and
+ * {@link VideoTrackList}
+ *
+ * @extends EventTarget
+ */
+
+var TrackList =
+/*#__PURE__*/
+function (_EventTarget) {
+ _inheritsLoose(TrackList, _EventTarget);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Track[]} tracks
+ * A list of tracks to initialize the list with.
+ *
+ * @abstract
+ */
+ function TrackList(tracks) {
+ var _this;
+
+ if (tracks === void 0) {
+ tracks = [];
+ }
+
+ _this = _EventTarget.call(this) || this;
+ _this.tracks_ = [];
+ /**
+ * @memberof TrackList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+
+ Object.defineProperty(_assertThisInitialized(_this), 'length', {
+ get: function get() {
+ return this.tracks_.length;
+ }
+ });
+
+ for (var i = 0; i < tracks.length; i++) {
+ _this.addTrack(tracks[i]);
+ }
+
+ return _this;
+ }
+ /**
+ * Add a {@link Track} to the `TrackList`
+ *
+ * @param {Track} track
+ * The audio, video, or text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ var _proto = TrackList.prototype;
+
+ _proto.addTrack = function addTrack(track) {
+ var index = this.tracks_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get() {
+ return this.tracks_[index];
+ }
+ });
+ } // Do not add duplicate tracks
+
+
+ if (this.tracks_.indexOf(track) === -1) {
+ this.tracks_.push(track);
+ /**
+ * Triggered when a track is added to a track list.
+ *
+ * @event TrackList#addtrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was added.
+ */
+
+ this.trigger({
+ track: track,
+ type: 'addtrack',
+ target: this
+ });
+ }
+ }
+ /**
+ * Remove a {@link Track} from the `TrackList`
+ *
+ * @param {Track} rtrack
+ * The audio, video, or text track to remove from the list.
+ *
+ * @fires TrackList#removetrack
+ */
+ ;
+
+ _proto.removeTrack = function removeTrack(rtrack) {
+ var track;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ if (this[i] === rtrack) {
+ track = this[i];
+
+ if (track.off) {
+ track.off();
+ }
+
+ this.tracks_.splice(i, 1);
+ break;
+ }
+ }
+
+ if (!track) {
+ return;
+ }
+ /**
+ * Triggered when a track is removed from track list.
+ *
+ * @event TrackList#removetrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was removed.
+ */
+
+
+ this.trigger({
+ track: track,
+ type: 'removetrack',
+ target: this
+ });
+ }
+ /**
+ * Get a Track from the TrackList by a tracks id
+ *
+ * @param {string} id - the id of the track to get
+ * @method getTrackById
+ * @return {Track}
+ * @private
+ */
+ ;
+
+ _proto.getTrackById = function getTrackById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var track = this[i];
+
+ if (track.id === id) {
+ result = track;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TrackList;
+}(EventTarget);
+/**
+ * Triggered when a different track is selected/enabled.
+ *
+ * @event TrackList#change
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Events that can be called with on + eventName. See {@link EventHandler}.
+ *
+ * @property {Object} TrackList#allowedEvents_
+ * @private
+ */
+
+
+TrackList.prototype.allowedEvents_ = {
+ change: 'change',
+ addtrack: 'addtrack',
+ removetrack: 'removetrack'
+}; // emulate attribute EventHandler support to allow for feature detection
+
+for (var event in TrackList.prototype.allowedEvents_) {
+ TrackList.prototype['on' + event] = null;
+}
+
+/**
+ * Anywhere we call this function we diverge from the spec
+ * as we only support one enabled audiotrack at a time
+ *
+ * @param {AudioTrackList} list
+ * list to work on
+ *
+ * @param {AudioTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+
+var disableOthers = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ } // another audio track is enabled, disable it
+
+
+ list[i].enabled = false;
+ }
+};
+/**
+ * The current list of {@link AudioTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}
+ * @extends TrackList
+ */
+
+
+var AudioTrackList =
+/*#__PURE__*/
+function (_TrackList) {
+ _inheritsLoose(AudioTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {AudioTrack[]} [tracks=[]]
+ * A list of `AudioTrack` to instantiate the list with.
+ */
+ function AudioTrackList(tracks) {
+ var _this;
+
+ if (tracks === void 0) {
+ tracks = [];
+ }
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].enabled) {
+ disableOthers(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ _this = _TrackList.call(this, tracks) || this;
+ _this.changing_ = false;
+ return _this;
+ }
+ /**
+ * Add an {@link AudioTrack} to the `AudioTrackList`.
+ *
+ * @param {AudioTrack} track
+ * The AudioTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ var _proto = AudioTrackList.prototype;
+
+ _proto.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.enabled) {
+ disableOthers(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track); // native tracks don't have this
+
+
+ if (!track.addEventListener) {
+ return;
+ }
+
+ track.enabledChange_ = function () {
+ // when we are disabling other tracks (since we don't support
+ // more than one track at a time) we will set changing_
+ // to true so that we don't trigger additional change events
+ if (_this2.changing_) {
+ return;
+ }
+
+ _this2.changing_ = true;
+ disableOthers(_this2, track);
+ _this2.changing_ = false;
+
+ _this2.trigger('change');
+ };
+ /**
+ * @listens AudioTrack#enabledchange
+ * @fires TrackList#change
+ */
+
+
+ track.addEventListener('enabledchange', track.enabledChange_);
+ };
+
+ _proto.removeTrack = function removeTrack(rtrack) {
+ _TrackList.prototype.removeTrack.call(this, rtrack);
+
+ if (rtrack.removeEventListener && rtrack.enabledChange_) {
+ rtrack.removeEventListener('enabledchange', rtrack.enabledChange_);
+ rtrack.enabledChange_ = null;
+ }
+ };
+
+ return AudioTrackList;
+}(TrackList);
+
+/**
+ * Un-select all other {@link VideoTrack}s that are selected.
+ *
+ * @param {VideoTrackList} list
+ * list to work on
+ *
+ * @param {VideoTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+
+var disableOthers$1 = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ } // another video track is enabled, disable it
+
+
+ list[i].selected = false;
+ }
+};
+/**
+ * The current list of {@link VideoTrack} for a video.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}
+ * @extends TrackList
+ */
+
+
+var VideoTrackList =
+/*#__PURE__*/
+function (_TrackList) {
+ _inheritsLoose(VideoTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {VideoTrack[]} [tracks=[]]
+ * A list of `VideoTrack` to instantiate the list with.
+ */
+ function VideoTrackList(tracks) {
+ var _this;
+
+ if (tracks === void 0) {
+ tracks = [];
+ }
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].selected) {
+ disableOthers$1(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ _this = _TrackList.call(this, tracks) || this;
+ _this.changing_ = false;
+ /**
+ * @member {number} VideoTrackList#selectedIndex
+ * The current index of the selected {@link VideoTrack`}.
+ */
+
+ Object.defineProperty(_assertThisInitialized(_this), 'selectedIndex', {
+ get: function get() {
+ for (var _i = 0; _i < this.length; _i++) {
+ if (this[_i].selected) {
+ return _i;
+ }
+ }
+
+ return -1;
+ },
+ set: function set() {}
+ });
+ return _this;
+ }
+ /**
+ * Add a {@link VideoTrack} to the `VideoTrackList`.
+ *
+ * @param {VideoTrack} track
+ * The VideoTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ var _proto = VideoTrackList.prototype;
+
+ _proto.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.selected) {
+ disableOthers$1(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track); // native tracks don't have this
+
+
+ if (!track.addEventListener) {
+ return;
+ }
+
+ track.selectedChange_ = function () {
+ if (_this2.changing_) {
+ return;
+ }
+
+ _this2.changing_ = true;
+ disableOthers$1(_this2, track);
+ _this2.changing_ = false;
+
+ _this2.trigger('change');
+ };
+ /**
+ * @listens VideoTrack#selectedchange
+ * @fires TrackList#change
+ */
+
+
+ track.addEventListener('selectedchange', track.selectedChange_);
+ };
+
+ _proto.removeTrack = function removeTrack(rtrack) {
+ _TrackList.prototype.removeTrack.call(this, rtrack);
+
+ if (rtrack.removeEventListener && rtrack.selectedChange_) {
+ rtrack.removeEventListener('selectedchange', rtrack.selectedChange_);
+ rtrack.selectedChange_ = null;
+ }
+ };
+
+ return VideoTrackList;
+}(TrackList);
+
+/**
+ * The current list of {@link TextTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}
+ * @extends TrackList
+ */
+
+var TextTrackList =
+/*#__PURE__*/
+function (_TrackList) {
+ _inheritsLoose(TextTrackList, _TrackList);
+
+ function TextTrackList() {
+ return _TrackList.apply(this, arguments) || this;
+ }
+
+ var _proto = TextTrackList.prototype;
+
+ /**
+ * Add a {@link TextTrack} to the `TextTrackList`
+ *
+ * @param {TextTrack} track
+ * The text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+ _proto.addTrack = function addTrack(track) {
+ var _this = this;
+
+ _TrackList.prototype.addTrack.call(this, track);
+
+ if (!this.queueChange_) {
+ this.queueChange_ = function () {
+ return _this.queueTrigger('change');
+ };
+ }
+
+ if (!this.triggerSelectedlanguagechange) {
+ this.triggerSelectedlanguagechange_ = function () {
+ return _this.trigger('selectedlanguagechange');
+ };
+ }
+ /**
+ * @listens TextTrack#modechange
+ * @fires TrackList#change
+ */
+
+
+ track.addEventListener('modechange', this.queueChange_);
+ var nonLanguageTextTrackKind = ['metadata', 'chapters'];
+
+ if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {
+ track.addEventListener('modechange', this.triggerSelectedlanguagechange_);
+ }
+ };
+
+ _proto.removeTrack = function removeTrack(rtrack) {
+ _TrackList.prototype.removeTrack.call(this, rtrack); // manually remove the event handlers we added
+
+
+ if (rtrack.removeEventListener) {
+ if (this.queueChange_) {
+ rtrack.removeEventListener('modechange', this.queueChange_);
+ }
+
+ if (this.selectedlanguagechange_) {
+ rtrack.removeEventListener('modechange', this.triggerSelectedlanguagechange_);
+ }
+ }
+ };
+
+ return TextTrackList;
+}(TrackList);
+
+/**
+ * @file html-track-element-list.js
+ */
+
+/**
+ * The current list of {@link HtmlTrackElement}s.
+ */
+var HtmlTrackElementList =
+/*#__PURE__*/
+function () {
+ /**
+ * Create an instance of this class.
+ *
+ * @param {HtmlTrackElement[]} [tracks=[]]
+ * A list of `HtmlTrackElement` to instantiate the list with.
+ */
+ function HtmlTrackElementList(trackElements) {
+ if (trackElements === void 0) {
+ trackElements = [];
+ }
+
+ this.trackElements_ = [];
+ /**
+ * @memberof HtmlTrackElementList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+
+ Object.defineProperty(this, 'length', {
+ get: function get() {
+ return this.trackElements_.length;
+ }
+ });
+
+ for (var i = 0, length = trackElements.length; i < length; i++) {
+ this.addTrackElement_(trackElements[i]);
+ }
+ }
+ /**
+ * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to add to the list.
+ *
+ * @private
+ */
+
+
+ var _proto = HtmlTrackElementList.prototype;
+
+ _proto.addTrackElement_ = function addTrackElement_(trackElement) {
+ var index = this.trackElements_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get() {
+ return this.trackElements_[index];
+ }
+ });
+ } // Do not add duplicate elements
+
+
+ if (this.trackElements_.indexOf(trackElement) === -1) {
+ this.trackElements_.push(trackElement);
+ }
+ }
+ /**
+ * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an
+ * {@link TextTrack}.
+ *
+ * @param {TextTrack} track
+ * The track associated with a track element.
+ *
+ * @return {HtmlTrackElement|undefined}
+ * The track element that was found or undefined.
+ *
+ * @private
+ */
+ ;
+
+ _proto.getTrackElementByTrack_ = function getTrackElementByTrack_(track) {
+ var trackElement_;
+
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (track === this.trackElements_[i].track) {
+ trackElement_ = this.trackElements_[i];
+ break;
+ }
+ }
+
+ return trackElement_;
+ }
+ /**
+ * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to remove from the list.
+ *
+ * @private
+ */
+ ;
+
+ _proto.removeTrackElement_ = function removeTrackElement_(trackElement) {
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (trackElement === this.trackElements_[i]) {
+ if (this.trackElements_[i].track && typeof this.trackElements_[i].track.off === 'function') {
+ this.trackElements_[i].track.off();
+ }
+
+ if (typeof this.trackElements_[i].off === 'function') {
+ this.trackElements_[i].off();
+ }
+
+ this.trackElements_.splice(i, 1);
+ break;
+ }
+ }
+ };
+
+ return HtmlTrackElementList;
+}();
+
+/**
+ * @file text-track-cue-list.js
+ */
+
+/**
+ * @typedef {Object} TextTrackCueList~TextTrackCue
+ *
+ * @property {string} id
+ * The unique id for this text track cue
+ *
+ * @property {number} startTime
+ * The start time for this text track cue
+ *
+ * @property {number} endTime
+ * The end time for this text track cue
+ *
+ * @property {boolean} pauseOnExit
+ * Pause when the end time is reached if true.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}
+ */
+
+/**
+ * A List of TextTrackCues.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}
+ */
+var TextTrackCueList =
+/*#__PURE__*/
+function () {
+ /**
+ * Create an instance of this class..
+ *
+ * @param {Array} cues
+ * A list of cues to be initialized with
+ */
+ function TextTrackCueList(cues) {
+ TextTrackCueList.prototype.setCues_.call(this, cues);
+ /**
+ * @memberof TextTrackCueList
+ * @member {number} length
+ * The current number of `TextTrackCue`s in the TextTrackCueList.
+ * @instance
+ */
+
+ Object.defineProperty(this, 'length', {
+ get: function get() {
+ return this.length_;
+ }
+ });
+ }
+ /**
+ * A setter for cues in this list. Creates getters
+ * an an index for the cues.
+ *
+ * @param {Array} cues
+ * An array of cues to set
+ *
+ * @private
+ */
+
+
+ var _proto = TextTrackCueList.prototype;
+
+ _proto.setCues_ = function setCues_(cues) {
+ var oldLength = this.length || 0;
+ var i = 0;
+ var l = cues.length;
+ this.cues_ = cues;
+ this.length_ = cues.length;
+
+ var defineProp = function defineProp(index) {
+ if (!('' + index in this)) {
+ Object.defineProperty(this, '' + index, {
+ get: function get() {
+ return this.cues_[index];
+ }
+ });
+ }
+ };
+
+ if (oldLength < l) {
+ i = oldLength;
+
+ for (; i < l; i++) {
+ defineProp.call(this, i);
+ }
+ }
+ }
+ /**
+ * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.
+ *
+ * @param {string} id
+ * The id of the cue that should be searched for.
+ *
+ * @return {TextTrackCueList~TextTrackCue|null}
+ * A single cue or null if none was found.
+ */
+ ;
+
+ _proto.getCueById = function getCueById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var cue = this[i];
+
+ if (cue.id === id) {
+ result = cue;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TextTrackCueList;
+}();
+
+/**
+ * @file track-kinds.js
+ */
+
+/**
+ * All possible `VideoTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind
+ * @typedef VideoTrack~Kind
+ * @enum
+ */
+var VideoTrackKind = {
+ alternative: 'alternative',
+ captions: 'captions',
+ main: 'main',
+ sign: 'sign',
+ subtitles: 'subtitles',
+ commentary: 'commentary'
+};
+/**
+ * All possible `AudioTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind
+ * @typedef AudioTrack~Kind
+ * @enum
+ */
+
+var AudioTrackKind = {
+ 'alternative': 'alternative',
+ 'descriptions': 'descriptions',
+ 'main': 'main',
+ 'main-desc': 'main-desc',
+ 'translation': 'translation',
+ 'commentary': 'commentary'
+};
+/**
+ * All possible `TextTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind
+ * @typedef TextTrack~Kind
+ * @enum
+ */
+
+var TextTrackKind = {
+ subtitles: 'subtitles',
+ captions: 'captions',
+ descriptions: 'descriptions',
+ chapters: 'chapters',
+ metadata: 'metadata'
+};
+/**
+ * All possible `TextTrackMode`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode
+ * @typedef TextTrack~Mode
+ * @enum
+ */
+
+var TextTrackMode = {
+ disabled: 'disabled',
+ hidden: 'hidden',
+ showing: 'showing'
+};
+
+/**
+ * A Track class that contains all of the common functionality for {@link AudioTrack},
+ * {@link VideoTrack}, and {@link TextTrack}.
+ *
+ * > Note: This class should not be used directly
+ *
+ * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}
+ * @extends EventTarget
+ * @abstract
+ */
+
+var Track =
+/*#__PURE__*/
+function (_EventTarget) {
+ _inheritsLoose(Track, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid kind for the track type you are creating.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @abstract
+ */
+ function Track(options) {
+ var _this;
+
+ if (options === void 0) {
+ options = {};
+ }
+
+ _this = _EventTarget.call(this) || this;
+ var trackProps = {
+ id: options.id || 'vjs_track_' + newGUID(),
+ kind: options.kind || '',
+ label: options.label || '',
+ language: options.language || ''
+ };
+ /**
+ * @memberof Track
+ * @member {string} id
+ * The id of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} kind
+ * The kind of track that this is. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} label
+ * The label of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} language
+ * The two letter language code for this track. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ var _loop = function _loop(key) {
+ Object.defineProperty(_assertThisInitialized(_this), key, {
+ get: function get() {
+ return trackProps[key];
+ },
+ set: function set() {}
+ });
+ };
+
+ for (var key in trackProps) {
+ _loop(key);
+ }
+
+ return _this;
+ }
+
+ return Track;
+}(EventTarget);
+
+/**
+ * @file url.js
+ * @module url
+ */
+/**
+ * @typedef {Object} url:URLObject
+ *
+ * @property {string} protocol
+ * The protocol of the url that was parsed.
+ *
+ * @property {string} hostname
+ * The hostname of the url that was parsed.
+ *
+ * @property {string} port
+ * The port of the url that was parsed.
+ *
+ * @property {string} pathname
+ * The pathname of the url that was parsed.
+ *
+ * @property {string} search
+ * The search query of the url that was parsed.
+ *
+ * @property {string} hash
+ * The hash of the url that was parsed.
+ *
+ * @property {string} host
+ * The host of the url that was parsed.
+ */
+
+/**
+ * Resolve and parse the elements of a URL.
+ *
+ * @function
+ * @param {String} url
+ * The url to parse
+ *
+ * @return {url:URLObject}
+ * An object of url details
+ */
+
+var parseUrl = function parseUrl(url) {
+ var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host']; // add the url to an anchor and let the browser parse the URL
+
+ var a = document.createElement('a');
+ a.href = url; // IE8 (and 9?) Fix
+ // ie8 doesn't parse the URL correctly until the anchor is actually
+ // added to the body, and an innerHTML is needed to trigger the parsing
+
+ var addToBody = a.host === '' && a.protocol !== 'file:';
+ var div;
+
+ if (addToBody) {
+ div = document.createElement('div');
+ div.innerHTML = "<a href=\"" + url + "\"></a>";
+ a = div.firstChild; // prevent the div from affecting layout
+
+ div.setAttribute('style', 'display:none; position:absolute;');
+ document.body.appendChild(div);
+ } // Copy the specific URL properties to a new object
+ // This is also needed for IE8 because the anchor loses its
+ // properties when it's removed from the dom
+
+
+ var details = {};
+
+ for (var i = 0; i < props.length; i++) {
+ details[props[i]] = a[props[i]];
+ } // IE9 adds the port to the host property unlike everyone else. If
+ // a port identifier is added for standard ports, strip it.
+
+
+ if (details.protocol === 'http:') {
+ details.host = details.host.replace(/:80$/, '');
+ }
+
+ if (details.protocol === 'https:') {
+ details.host = details.host.replace(/:443$/, '');
+ }
+
+ if (!details.protocol) {
+ details.protocol = window$1.location.protocol;
+ }
+
+ if (addToBody) {
+ document.body.removeChild(div);
+ }
+
+ return details;
+};
+/**
+ * Get absolute version of relative URL. Used to tell Flash the correct URL.
+ *
+ * @function
+ * @param {string} url
+ * URL to make absolute
+ *
+ * @return {string}
+ * Absolute URL
+ *
+ * @see http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
+ */
+
+var getAbsoluteURL = function getAbsoluteURL(url) {
+ // Check if absolute URL
+ if (!url.match(/^https?:\/\//)) {
+ // Convert to absolute URL. Flash hosted off-site needs an absolute URL.
+ var div = document.createElement('div');
+ div.innerHTML = "<a href=\"" + url + "\">x</a>";
+ url = div.firstChild.href;
+ }
+
+ return url;
+};
+/**
+ * Returns the extension of the passed file name. It will return an empty string
+ * if passed an invalid path.
+ *
+ * @function
+ * @param {string} path
+ * The fileName path like '/path/to/file.mp4'
+ *
+ * @return {string}
+ * The extension in lower case or an empty string if no
+ * extension could be found.
+ */
+
+var getFileExtension = function getFileExtension(path) {
+ if (typeof path === 'string') {
+ var splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/;
+ var pathParts = splitPathRe.exec(path);
+
+ if (pathParts) {
+ return pathParts.pop().toLowerCase();
+ }
+ }
+
+ return '';
+};
+/**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @function
+ * @param {string} url
+ * The url to check.
+ *
+ * @return {boolean}
+ * Whether it is a cross domain request or not.
+ */
+
+var isCrossOrigin = function isCrossOrigin(url) {
+ var winLoc = window$1.location;
+ var urlInfo = parseUrl(url); // IE8 protocol relative urls will return ':' for protocol
+
+ var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol; // Check if url is for another domain/origin
+ // IE8 doesn't know location.origin, so we won't rely on it here
+
+ var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;
+ return crossOrigin;
+};
+
+var Url = /*#__PURE__*/Object.freeze({
+ parseUrl: parseUrl,
+ getAbsoluteURL: getAbsoluteURL,
+ getFileExtension: getFileExtension,
+ isCrossOrigin: isCrossOrigin
+});
+
+/**
+ * Takes a webvtt file contents and parses it into cues
+ *
+ * @param {string} srcContent
+ * webVTT file contents
+ *
+ * @param {TextTrack} track
+ * TextTrack to add cues to. Cues come from the srcContent.
+ *
+ * @private
+ */
+
+var parseCues = function parseCues(srcContent, track) {
+ var parser = new window$1.WebVTT.Parser(window$1, window$1.vttjs, window$1.WebVTT.StringDecoder());
+ var errors = [];
+
+ parser.oncue = function (cue) {
+ track.addCue(cue);
+ };
+
+ parser.onparsingerror = function (error) {
+ errors.push(error);
+ };
+
+ parser.onflush = function () {
+ track.trigger({
+ type: 'loadeddata',
+ target: track
+ });
+ };
+
+ parser.parse(srcContent);
+
+ if (errors.length > 0) {
+ if (window$1.console && window$1.console.groupCollapsed) {
+ window$1.console.groupCollapsed("Text Track parsing errors for " + track.src);
+ }
+
+ errors.forEach(function (error) {
+ return log.error(error);
+ });
+
+ if (window$1.console && window$1.console.groupEnd) {
+ window$1.console.groupEnd();
+ }
+ }
+
+ parser.flush();
+};
+/**
+ * Load a `TextTrack` from a specified url.
+ *
+ * @param {string} src
+ * Url to load track from.
+ *
+ * @param {TextTrack} track
+ * Track to add cues to. Comes from the content at the end of `url`.
+ *
+ * @private
+ */
+
+
+var loadTrack = function loadTrack(src, track) {
+ var opts = {
+ uri: src
+ };
+ var crossOrigin = isCrossOrigin(src);
+
+ if (crossOrigin) {
+ opts.cors = crossOrigin;
+ }
+
+ XHR(opts, bind(this, function (err, response, responseBody) {
+ if (err) {
+ return log.error(err, response);
+ }
+
+ track.loaded_ = true; // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+ // NOTE: this is only used for the alt/video.novtt.js build
+
+ if (typeof window$1.WebVTT !== 'function') {
+ if (track.tech_) {
+ // to prevent use before define eslint error, we define loadHandler
+ // as a let here
+ track.tech_.any(['vttjsloaded', 'vttjserror'], function (event) {
+ if (event.type === 'vttjserror') {
+ log.error("vttjs failed to load, stopping trying to process " + track.src);
+ return;
+ }
+
+ return parseCues(responseBody, track);
+ });
+ }
+ } else {
+ parseCues(responseBody, track);
+ }
+ }));
+};
+/**
+ * A representation of a single `TextTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}
+ * @extends Track
+ */
+
+
+var TextTrack =
+/*#__PURE__*/
+function (_Track) {
+ _inheritsLoose(TextTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this TextTrack.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * version of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function TextTrack(options) {
+ var _this;
+
+ if (options === void 0) {
+ options = {};
+ }
+
+ if (!options.tech) {
+ throw new Error('A tech was not provided.');
+ }
+
+ var settings = mergeOptions(options, {
+ kind: TextTrackKind[options.kind] || 'subtitles',
+ language: options.language || options.srclang || ''
+ });
+ var mode = TextTrackMode[settings.mode] || 'disabled';
+ var default_ = settings["default"];
+
+ if (settings.kind === 'metadata' || settings.kind === 'chapters') {
+ mode = 'hidden';
+ }
+
+ _this = _Track.call(this, settings) || this;
+ _this.tech_ = settings.tech;
+ _this.cues_ = [];
+ _this.activeCues_ = [];
+ var cues = new TextTrackCueList(_this.cues_);
+ var activeCues = new TextTrackCueList(_this.activeCues_);
+ var changed = false;
+ var timeupdateHandler = bind(_assertThisInitialized(_this), function () {
+ // Accessing this.activeCues for the side-effects of updating itself
+ // due to its nature as a getter function. Do not remove or cues will
+ // stop updating!
+ // Use the setter to prevent deletion from uglify (pure_getters rule)
+ this.activeCues = this.activeCues;
+
+ if (changed) {
+ this.trigger('cuechange');
+ changed = false;
+ }
+ });
+
+ if (mode !== 'disabled') {
+ _this.tech_.ready(function () {
+ _this.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ }
+
+ Object.defineProperties(_assertThisInitialized(_this), {
+ /**
+ * @memberof TextTrack
+ * @member {boolean} default
+ * If this track was set to be on or off by default. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+ "default": {
+ get: function get() {
+ return default_;
+ },
+ set: function set() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {string} mode
+ * Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will
+ * not be set if setting to an invalid mode.
+ * @instance
+ *
+ * @fires TextTrack#modechange
+ */
+ mode: {
+ get: function get() {
+ return mode;
+ },
+ set: function set(newMode) {
+ var _this2 = this;
+
+ if (!TextTrackMode[newMode]) {
+ return;
+ }
+
+ mode = newMode;
+
+ if (mode !== 'disabled') {
+ this.tech_.ready(function () {
+ _this2.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ } else {
+ this.tech_.off('timeupdate', timeupdateHandler);
+ }
+ /**
+ * An event that fires when mode changes on this track. This allows
+ * the TextTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec!
+ *
+ * @event TextTrack#modechange
+ * @type {EventTarget~Event}
+ */
+
+
+ this.trigger('modechange');
+ }
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} cues
+ * The text track cue list for this TextTrack.
+ * @instance
+ */
+ cues: {
+ get: function get() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ return cues;
+ },
+ set: function set() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} activeCues
+ * The list text track cues that are currently active for this TextTrack.
+ * @instance
+ */
+ activeCues: {
+ get: function get() {
+ if (!this.loaded_) {
+ return null;
+ } // nothing to do
+
+
+ if (this.cues.length === 0) {
+ return activeCues;
+ }
+
+ var ct = this.tech_.currentTime();
+ var active = [];
+
+ for (var i = 0, l = this.cues.length; i < l; i++) {
+ var cue = this.cues[i];
+
+ if (cue.startTime <= ct && cue.endTime >= ct) {
+ active.push(cue);
+ } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {
+ active.push(cue);
+ }
+ }
+
+ changed = false;
+
+ if (active.length !== this.activeCues_.length) {
+ changed = true;
+ } else {
+ for (var _i = 0; _i < active.length; _i++) {
+ if (this.activeCues_.indexOf(active[_i]) === -1) {
+ changed = true;
+ }
+ }
+ }
+
+ this.activeCues_ = active;
+ activeCues.setCues_(this.activeCues_);
+ return activeCues;
+ },
+ // /!\ Keep this setter empty (see the timeupdate handler above)
+ set: function set() {}
+ }
+ });
+
+ if (settings.src) {
+ _this.src = settings.src;
+ loadTrack(settings.src, _assertThisInitialized(_this));
+ } else {
+ _this.loaded_ = true;
+ }
+
+ return _this;
+ }
+ /**
+ * Add a cue to the internal list of cues.
+ *
+ * @param {TextTrack~Cue} cue
+ * The cue to add to our internal list
+ */
+
+
+ var _proto = TextTrack.prototype;
+
+ _proto.addCue = function addCue(originalCue) {
+ var cue = originalCue;
+
+ if (window$1.vttjs && !(originalCue instanceof window$1.vttjs.VTTCue)) {
+ cue = new window$1.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);
+
+ for (var prop in originalCue) {
+ if (!(prop in cue)) {
+ cue[prop] = originalCue[prop];
+ }
+ } // make sure that `id` is copied over
+
+
+ cue.id = originalCue.id;
+ cue.originalCue_ = originalCue;
+ }
+
+ var tracks = this.tech_.textTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ if (tracks[i] !== this) {
+ tracks[i].removeCue(cue);
+ }
+ }
+
+ this.cues_.push(cue);
+ this.cues.setCues_(this.cues_);
+ }
+ /**
+ * Remove a cue from our internal list
+ *
+ * @param {TextTrack~Cue} removeCue
+ * The cue to remove from our internal list
+ */
+ ;
+
+ _proto.removeCue = function removeCue(_removeCue) {
+ var i = this.cues_.length;
+
+ while (i--) {
+ var cue = this.cues_[i];
+
+ if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {
+ this.cues_.splice(i, 1);
+ this.cues.setCues_(this.cues_);
+ break;
+ }
+ }
+ };
+
+ return TextTrack;
+}(Track);
+/**
+ * cuechange - One or more cues in the track have become active or stopped being active.
+ */
+
+
+TextTrack.prototype.allowedEvents_ = {
+ cuechange: 'cuechange'
+};
+
+/**
+ * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}
+ * only one `AudioTrack` in the list will be enabled at a time.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}
+ * @extends Track
+ */
+
+var AudioTrack =
+/*#__PURE__*/
+function (_Track) {
+ _inheritsLoose(AudioTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {AudioTrack~Kind} [options.kind='']
+ * A valid audio track kind
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.enabled]
+ * If this track is the one that is currently playing. If this track is part of
+ * an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.
+ */
+ function AudioTrack(options) {
+ var _this;
+
+ if (options === void 0) {
+ options = {};
+ }
+
+ var settings = mergeOptions(options, {
+ kind: AudioTrackKind[options.kind] || ''
+ });
+ _this = _Track.call(this, settings) || this;
+ var enabled = false;
+ /**
+ * @memberof AudioTrack
+ * @member {boolean} enabled
+ * If this `AudioTrack` is enabled or not. When setting this will
+ * fire {@link AudioTrack#enabledchange} if the state of enabled is changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+
+ Object.defineProperty(_assertThisInitialized(_this), 'enabled', {
+ get: function get() {
+ return enabled;
+ },
+ set: function set(newEnabled) {
+ // an invalid or unchanged value
+ if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {
+ return;
+ }
+
+ enabled = newEnabled;
+ /**
+ * An event that fires when enabled changes on this track. This allows
+ * the AudioTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event AudioTrack#enabledchange
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('enabledchange');
+ }
+ }); // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+
+ if (settings.enabled) {
+ _this.enabled = settings.enabled;
+ }
+
+ _this.loaded_ = true;
+ return _this;
+ }
+
+ return AudioTrack;
+}(Track);
+
+/**
+ * A representation of a single `VideoTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}
+ * @extends Track
+ */
+
+var VideoTrack =
+/*#__PURE__*/
+function (_Track) {
+ _inheritsLoose(VideoTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid {@link VideoTrack~Kind}
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.selected]
+ * If this track is the one that is currently playing.
+ */
+ function VideoTrack(options) {
+ var _this;
+
+ if (options === void 0) {
+ options = {};
+ }
+
+ var settings = mergeOptions(options, {
+ kind: VideoTrackKind[options.kind] || ''
+ });
+ _this = _Track.call(this, settings) || this;
+ var selected = false;
+ /**
+ * @memberof VideoTrack
+ * @member {boolean} selected
+ * If this `VideoTrack` is selected or not. When setting this will
+ * fire {@link VideoTrack#selectedchange} if the state of selected changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+
+ Object.defineProperty(_assertThisInitialized(_this), 'selected', {
+ get: function get() {
+ return selected;
+ },
+ set: function set(newSelected) {
+ // an invalid or unchanged value
+ if (typeof newSelected !== 'boolean' || newSelected === selected) {
+ return;
+ }
+
+ selected = newSelected;
+ /**
+ * An event that fires when selected changes on this track. This allows
+ * the VideoTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event VideoTrack#selectedchange
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('selectedchange');
+ }
+ }); // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+
+ if (settings.selected) {
+ _this.selected = settings.selected;
+ }
+
+ return _this;
+ }
+
+ return VideoTrack;
+}(Track);
+
+/**
+ * @memberof HTMLTrackElement
+ * @typedef {HTMLTrackElement~ReadyState}
+ * @enum {number}
+ */
+
+var NONE = 0;
+var LOADING = 1;
+var LOADED = 2;
+var ERROR = 3;
+/**
+ * A single track represented in the DOM.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}
+ * @extends EventTarget
+ */
+
+var HTMLTrackElement =
+/*#__PURE__*/
+function (_EventTarget) {
+ _inheritsLoose(HTMLTrackElement, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this HTMLTrackElement.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * vesion of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function HTMLTrackElement(options) {
+ var _this;
+
+ if (options === void 0) {
+ options = {};
+ }
+
+ _this = _EventTarget.call(this) || this;
+ var readyState;
+ var track = new TextTrack(options);
+ _this.kind = track.kind;
+ _this.src = track.src;
+ _this.srclang = track.language;
+ _this.label = track.label;
+ _this["default"] = track["default"];
+ Object.defineProperties(_assertThisInitialized(_this), {
+ /**
+ * @memberof HTMLTrackElement
+ * @member {HTMLTrackElement~ReadyState} readyState
+ * The current ready state of the track element.
+ * @instance
+ */
+ readyState: {
+ get: function get() {
+ return readyState;
+ }
+ },
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {TextTrack} track
+ * The underlying TextTrack object.
+ * @instance
+ *
+ */
+ track: {
+ get: function get() {
+ return track;
+ }
+ }
+ });
+ readyState = NONE;
+ /**
+ * @listens TextTrack#loadeddata
+ * @fires HTMLTrackElement#load
+ */
+
+ track.addEventListener('loadeddata', function () {
+ readyState = LOADED;
+
+ _this.trigger({
+ type: 'load',
+ target: _assertThisInitialized(_this)
+ });
+ });
+ return _this;
+ }
+
+ return HTMLTrackElement;
+}(EventTarget);
+
+HTMLTrackElement.prototype.allowedEvents_ = {
+ load: 'load'
+};
+HTMLTrackElement.NONE = NONE;
+HTMLTrackElement.LOADING = LOADING;
+HTMLTrackElement.LOADED = LOADED;
+HTMLTrackElement.ERROR = ERROR;
+
+/*
+ * This file contains all track properties that are used in
+ * player.js, tech.js, html5.js and possibly other techs in the future.
+ */
+
+var NORMAL = {
+ audio: {
+ ListClass: AudioTrackList,
+ TrackClass: AudioTrack,
+ capitalName: 'Audio'
+ },
+ video: {
+ ListClass: VideoTrackList,
+ TrackClass: VideoTrack,
+ capitalName: 'Video'
+ },
+ text: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'Text'
+ }
+};
+Object.keys(NORMAL).forEach(function (type) {
+ NORMAL[type].getterName = type + "Tracks";
+ NORMAL[type].privateName = type + "Tracks_";
+});
+var REMOTE = {
+ remoteText: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'RemoteText',
+ getterName: 'remoteTextTracks',
+ privateName: 'remoteTextTracks_'
+ },
+ remoteTextEl: {
+ ListClass: HtmlTrackElementList,
+ TrackClass: HTMLTrackElement,
+ capitalName: 'RemoteTextTrackEls',
+ getterName: 'remoteTextTrackEls',
+ privateName: 'remoteTextTrackEls_'
+ }
+};
+var ALL = mergeOptions(NORMAL, REMOTE);
+REMOTE.names = Object.keys(REMOTE);
+NORMAL.names = Object.keys(NORMAL);
+ALL.names = [].concat(REMOTE.names).concat(NORMAL.names);
+
+/**
+ * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string
+ * that just contains the src url alone.
+ * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`
+ * `var SourceString = 'http://example.com/some-video.mp4';`
+ *
+ * @typedef {Object|string} Tech~SourceObject
+ *
+ * @property {string} src
+ * The url to the source
+ *
+ * @property {string} type
+ * The mime type of the source
+ */
+
+/**
+ * A function used by {@link Tech} to create a new {@link TextTrack}.
+ *
+ * @private
+ *
+ * @param {Tech} self
+ * An instance of the Tech class.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @param {Object} [options={}]
+ * An object with additional text track options
+ *
+ * @return {TextTrack}
+ * The text track that was created.
+ */
+
+function createTrackHelper(self, kind, label, language, options) {
+ if (options === void 0) {
+ options = {};
+ }
+
+ var tracks = self.textTracks();
+ options.kind = kind;
+
+ if (label) {
+ options.label = label;
+ }
+
+ if (language) {
+ options.language = language;
+ }
+
+ options.tech = self;
+ var track = new ALL.text.TrackClass(options);
+ tracks.addTrack(track);
+ return track;
+}
+/**
+ * This is the base class for media playback technology controllers, such as
+ * {@link Flash} and {@link HTML5}
+ *
+ * @extends Component
+ */
+
+
+var Tech =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(Tech, _Component);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Tech(options, ready) {
+ var _this;
+
+ if (options === void 0) {
+ options = {};
+ }
+
+ if (ready === void 0) {
+ ready = function ready() {};
+ }
+
+ // we don't want the tech to report user activity automatically.
+ // This is done manually in addControlsListeners
+ options.reportTouchActivity = false;
+ _this = _Component.call(this, null, options, ready) || this; // keep track of whether the current source has played at all to
+ // implement a very limited played()
+
+ _this.hasStarted_ = false;
+
+ _this.on('playing', function () {
+ this.hasStarted_ = true;
+ });
+
+ _this.on('loadstart', function () {
+ this.hasStarted_ = false;
+ });
+
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ if (options && options[props.getterName]) {
+ _this[props.privateName] = options[props.getterName];
+ }
+ }); // Manually track progress in cases where the browser/flash player doesn't report it.
+
+ if (!_this.featuresProgressEvents) {
+ _this.manualProgressOn();
+ } // Manually track timeupdates in cases where the browser/flash player doesn't report it.
+
+
+ if (!_this.featuresTimeupdateEvents) {
+ _this.manualTimeUpdatesOn();
+ }
+
+ ['Text', 'Audio', 'Video'].forEach(function (track) {
+ if (options["native" + track + "Tracks"] === false) {
+ _this["featuresNative" + track + "Tracks"] = false;
+ }
+ });
+
+ if (options.nativeCaptions === false || options.nativeTextTracks === false) {
+ _this.featuresNativeTextTracks = false;
+ } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {
+ _this.featuresNativeTextTracks = true;
+ }
+
+ if (!_this.featuresNativeTextTracks) {
+ _this.emulateTextTracks();
+ }
+
+ _this.autoRemoteTextTracks_ = new ALL.text.ListClass();
+
+ _this.initTrackListeners(); // Turn on component tap events only if not using native controls
+
+
+ if (!options.nativeControlsForTouch) {
+ _this.emitTapEvents();
+ }
+
+ if (_this.constructor) {
+ _this.name_ = _this.constructor.name || 'Unknown Tech';
+ }
+
+ return _this;
+ }
+ /**
+ * A special function to trigger source set in a way that will allow player
+ * to re-trigger if the player or tech are not ready yet.
+ *
+ * @fires Tech#sourceset
+ * @param {string} src The source string at the time of the source changing.
+ */
+
+
+ var _proto = Tech.prototype;
+
+ _proto.triggerSourceset = function triggerSourceset(src) {
+ var _this2 = this;
+
+ if (!this.isReady_) {
+ // on initial ready we have to trigger source set
+ // 1ms after ready so that player can watch for it.
+ this.one('ready', function () {
+ return _this2.setTimeout(function () {
+ return _this2.triggerSourceset(src);
+ }, 1);
+ });
+ }
+ /**
+ * Fired when the source is set on the tech causing the media element
+ * to reload.
+ *
+ * @see {@link Player#event:sourceset}
+ * @event Tech#sourceset
+ * @type {EventTarget~Event}
+ */
+
+
+ this.trigger({
+ src: src,
+ type: 'sourceset'
+ });
+ }
+ /* Fallbacks for unsupported event types
+ ================================================================================ */
+
+ /**
+ * Polyfill the `progress` event for browsers that don't support it natively.
+ *
+ * @see {@link Tech#trackProgress}
+ */
+ ;
+
+ _proto.manualProgressOn = function manualProgressOn() {
+ this.on('durationchange', this.onDurationChange);
+ this.manualProgress = true; // Trigger progress watching when a source begins loading
+
+ this.one('ready', this.trackProgress);
+ }
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ */
+ ;
+
+ _proto.manualProgressOff = function manualProgressOff() {
+ this.manualProgress = false;
+ this.stopTrackingProgress();
+ this.off('durationchange', this.onDurationChange);
+ }
+ /**
+ * This is used to trigger a `progress` event when the buffered percent changes. It
+ * sets an interval function that will be called every 500 milliseconds to check if the
+ * buffer end percent has changed.
+ *
+ * > This function is called by {@link Tech#manualProgressOn}
+ *
+ * @param {EventTarget~Event} event
+ * The `ready` event that caused this to run.
+ *
+ * @listens Tech#ready
+ * @fires Tech#progress
+ */
+ ;
+
+ _proto.trackProgress = function trackProgress(event) {
+ this.stopTrackingProgress();
+ this.progressInterval = this.setInterval(bind(this, function () {
+ // Don't trigger unless buffered amount is greater than last time
+ var numBufferedPercent = this.bufferedPercent();
+
+ if (this.bufferedPercent_ !== numBufferedPercent) {
+ /**
+ * See {@link Player#progress}
+ *
+ * @event Tech#progress
+ * @type {EventTarget~Event}
+ */
+ this.trigger('progress');
+ }
+
+ this.bufferedPercent_ = numBufferedPercent;
+
+ if (numBufferedPercent === 1) {
+ this.stopTrackingProgress();
+ }
+ }), 500);
+ }
+ /**
+ * Update our internal duration on a `durationchange` event by calling
+ * {@link Tech#duration}.
+ *
+ * @param {EventTarget~Event} event
+ * The `durationchange` event that caused this to run.
+ *
+ * @listens Tech#durationchange
+ */
+ ;
+
+ _proto.onDurationChange = function onDurationChange(event) {
+ this.duration_ = this.duration();
+ }
+ /**
+ * Get and create a `TimeRange` object for buffering.
+ *
+ * @return {TimeRange}
+ * The time range object that was created.
+ */
+ ;
+
+ _proto.buffered = function buffered() {
+ return createTimeRanges(0, 0);
+ }
+ /**
+ * Get the percentage of the current video that is currently buffered.
+ *
+ * @return {number}
+ * A number from 0 to 1 that represents the decimal percentage of the
+ * video that is buffered.
+ *
+ */
+ ;
+
+ _proto.bufferedPercent = function bufferedPercent$1() {
+ return bufferedPercent(this.buffered(), this.duration_);
+ }
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ * Stop manually tracking progress events by clearing the interval that was set in
+ * {@link Tech#trackProgress}.
+ */
+ ;
+
+ _proto.stopTrackingProgress = function stopTrackingProgress() {
+ this.clearInterval(this.progressInterval);
+ }
+ /**
+ * Polyfill the `timeupdate` event for browsers that don't support it.
+ *
+ * @see {@link Tech#trackCurrentTime}
+ */
+ ;
+
+ _proto.manualTimeUpdatesOn = function manualTimeUpdatesOn() {
+ this.manualTimeUpdates = true;
+ this.on('play', this.trackCurrentTime);
+ this.on('pause', this.stopTrackingCurrentTime);
+ }
+ /**
+ * Turn off the polyfill for `timeupdate` events that was created in
+ * {@link Tech#manualTimeUpdatesOn}
+ */
+ ;
+
+ _proto.manualTimeUpdatesOff = function manualTimeUpdatesOff() {
+ this.manualTimeUpdates = false;
+ this.stopTrackingCurrentTime();
+ this.off('play', this.trackCurrentTime);
+ this.off('pause', this.stopTrackingCurrentTime);
+ }
+ /**
+ * Sets up an interval function to track current time and trigger `timeupdate` every
+ * 250 milliseconds.
+ *
+ * @listens Tech#play
+ * @triggers Tech#timeupdate
+ */
+ ;
+
+ _proto.trackCurrentTime = function trackCurrentTime() {
+ if (this.currentTimeInterval) {
+ this.stopTrackingCurrentTime();
+ }
+
+ this.currentTimeInterval = this.setInterval(function () {
+ /**
+ * Triggered at an interval of 250ms to indicated that time is passing in the video.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({
+ type: 'timeupdate',
+ target: this,
+ manuallyTriggered: true
+ }); // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+ }, 250);
+ }
+ /**
+ * Stop the interval function created in {@link Tech#trackCurrentTime} so that the
+ * `timeupdate` event is no longer triggered.
+ *
+ * @listens {Tech#pause}
+ */
+ ;
+
+ _proto.stopTrackingCurrentTime = function stopTrackingCurrentTime() {
+ this.clearInterval(this.currentTimeInterval); // #1002 - if the video ends right before the next timeupdate would happen,
+ // the progress bar won't make it all the way to the end
+
+ this.trigger({
+ type: 'timeupdate',
+ target: this,
+ manuallyTriggered: true
+ });
+ }
+ /**
+ * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},
+ * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.
+ *
+ * @fires Component#dispose
+ */
+ ;
+
+ _proto.dispose = function dispose() {
+ // clear out all tracks because we can't reuse them between techs
+ this.clearTracks(NORMAL.names); // Turn off any manual progress or timeupdate tracking
+
+ if (this.manualProgress) {
+ this.manualProgressOff();
+ }
+
+ if (this.manualTimeUpdates) {
+ this.manualTimeUpdatesOff();
+ }
+
+ _Component.prototype.dispose.call(this);
+ }
+ /**
+ * Clear out a single `TrackList` or an array of `TrackLists` given their names.
+ *
+ * > Note: Techs without source handlers should call this between sources for `video`
+ * & `audio` tracks. You don't want to use them between tracks!
+ *
+ * @param {string[]|string} types
+ * TrackList names to clear, valid names are `video`, `audio`, and
+ * `text`.
+ */
+ ;
+
+ _proto.clearTracks = function clearTracks(types) {
+ var _this3 = this;
+
+ types = [].concat(types); // clear out all tracks because we can't reuse them between techs
+
+ types.forEach(function (type) {
+ var list = _this3[type + "Tracks"]() || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ if (type === 'text') {
+ _this3.removeRemoteTextTrack(track);
+ }
+
+ list.removeTrack(track);
+ }
+ });
+ }
+ /**
+ * Remove any TextTracks added via addRemoteTextTrack that are
+ * flagged for automatic garbage collection
+ */
+ ;
+
+ _proto.cleanupAutoTextTracks = function cleanupAutoTextTracks() {
+ var list = this.autoRemoteTextTracks_ || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+ this.removeRemoteTextTrack(track);
+ }
+ }
+ /**
+ * Reset the tech, which will removes all sources and reset the internal readyState.
+ *
+ * @abstract
+ */
+ ;
+
+ _proto.reset = function reset() {}
+ /**
+ * Get or set an error on the Tech.
+ *
+ * @param {MediaError} [err]
+ * Error to set on the Tech
+ *
+ * @return {MediaError|null}
+ * The current error object on the tech, or null if there isn't one.
+ */
+ ;
+
+ _proto.error = function error(err) {
+ if (err !== undefined) {
+ this.error_ = new MediaError(err);
+ this.trigger('error');
+ }
+
+ return this.error_;
+ }
+ /**
+ * Returns the `TimeRange`s that have been played through for the current source.
+ *
+ * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.
+ * It only checks whether the source has played at all or not.
+ *
+ * @return {TimeRange}
+ * - A single time range if this video has played
+ * - An empty set of ranges if not.
+ */
+ ;
+
+ _proto.played = function played() {
+ if (this.hasStarted_) {
+ return createTimeRanges(0, 0);
+ }
+
+ return createTimeRanges();
+ }
+ /**
+ * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was
+ * previously called.
+ *
+ * @fires Tech#timeupdate
+ */
+ ;
+
+ _proto.setCurrentTime = function setCurrentTime() {
+ // improve the accuracy of manual timeupdates
+ if (this.manualTimeUpdates) {
+ /**
+ * A manual `timeupdate` event.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({
+ type: 'timeupdate',
+ target: this,
+ manuallyTriggered: true
+ });
+ }
+ }
+ /**
+ * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and
+ * {@link TextTrackList} events.
+ *
+ * This adds {@link EventTarget~EventListeners} for `addtrack`, and `removetrack`.
+ *
+ * @fires Tech#audiotrackchange
+ * @fires Tech#videotrackchange
+ * @fires Tech#texttrackchange
+ */
+ ;
+
+ _proto.initTrackListeners = function initTrackListeners() {
+ var _this4 = this;
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}
+ *
+ * @event Tech#audiotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}
+ *
+ * @event Tech#videotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link TextTrackList}
+ *
+ * @event Tech#texttrackchange
+ * @type {EventTarget~Event}
+ */
+ NORMAL.names.forEach(function (name) {
+ var props = NORMAL[name];
+
+ var trackListChanges = function trackListChanges() {
+ _this4.trigger(name + "trackchange");
+ };
+
+ var tracks = _this4[props.getterName]();
+
+ tracks.addEventListener('removetrack', trackListChanges);
+ tracks.addEventListener('addtrack', trackListChanges);
+
+ _this4.on('dispose', function () {
+ tracks.removeEventListener('removetrack', trackListChanges);
+ tracks.removeEventListener('addtrack', trackListChanges);
+ });
+ });
+ }
+ /**
+ * Emulate TextTracks using vtt.js if necessary
+ *
+ * @fires Tech#vttjsloaded
+ * @fires Tech#vttjserror
+ */
+ ;
+
+ _proto.addWebVttScript_ = function addWebVttScript_() {
+ var _this5 = this;
+
+ if (window$1.WebVTT) {
+ return;
+ } // Initially, Tech.el_ is a child of a dummy-div wait until the Component system
+ // signals that the Tech is ready at which point Tech.el_ is part of the DOM
+ // before inserting the WebVTT script
+
+
+ if (document.body.contains(this.el())) {
+ // load via require if available and vtt.js script location was not passed in
+ // as an option. novtt builds will turn the above require call into an empty object
+ // which will cause this if check to always fail.
+ if (!this.options_['vtt.js'] && isPlain(vtt) && Object.keys(vtt).length > 0) {
+ this.trigger('vttjsloaded');
+ return;
+ } // load vtt.js via the script location option or the cdn of no location was
+ // passed in
+
+
+ var script = document.createElement('script');
+ script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';
+
+ script.onload = function () {
+ /**
+ * Fired when vtt.js is loaded.
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjsloaded');
+ };
+
+ script.onerror = function () {
+ /**
+ * Fired when vtt.js was not loaded due to an error
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjserror');
+ };
+
+ this.on('dispose', function () {
+ script.onload = null;
+ script.onerror = null;
+ }); // but have not loaded yet and we set it to true before the inject so that
+ // we don't overwrite the injected window.WebVTT if it loads right away
+
+ window$1.WebVTT = true;
+ this.el().parentNode.appendChild(script);
+ } else {
+ this.ready(this.addWebVttScript_);
+ }
+ }
+ /**
+ * Emulate texttracks
+ *
+ */
+ ;
+
+ _proto.emulateTextTracks = function emulateTextTracks() {
+ var _this6 = this;
+
+ var tracks = this.textTracks();
+ var remoteTracks = this.remoteTextTracks();
+
+ var handleAddTrack = function handleAddTrack(e) {
+ return tracks.addTrack(e.track);
+ };
+
+ var handleRemoveTrack = function handleRemoveTrack(e) {
+ return tracks.removeTrack(e.track);
+ };
+
+ remoteTracks.on('addtrack', handleAddTrack);
+ remoteTracks.on('removetrack', handleRemoveTrack);
+ this.addWebVttScript_();
+
+ var updateDisplay = function updateDisplay() {
+ return _this6.trigger('texttrackchange');
+ };
+
+ var textTracksChanges = function textTracksChanges() {
+ updateDisplay();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+ track.removeEventListener('cuechange', updateDisplay);
+
+ if (track.mode === 'showing') {
+ track.addEventListener('cuechange', updateDisplay);
+ }
+ }
+ };
+
+ textTracksChanges();
+ tracks.addEventListener('change', textTracksChanges);
+ tracks.addEventListener('addtrack', textTracksChanges);
+ tracks.addEventListener('removetrack', textTracksChanges);
+ this.on('dispose', function () {
+ remoteTracks.off('addtrack', handleAddTrack);
+ remoteTracks.off('removetrack', handleRemoveTrack);
+ tracks.removeEventListener('change', textTracksChanges);
+ tracks.removeEventListener('addtrack', textTracksChanges);
+ tracks.removeEventListener('removetrack', textTracksChanges);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+ track.removeEventListener('cuechange', updateDisplay);
+ }
+ });
+ }
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+ ;
+
+ _proto.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!kind) {
+ throw new Error('TextTrack kind is required but was not provided');
+ }
+
+ return createTrackHelper(this, kind, label, language);
+ }
+ /**
+ * Create an emulated TextTrack for use by addRemoteTextTrack
+ *
+ * This is intended to be overridden by classes that inherit from
+ * Tech in order to create native or custom TextTracks.
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label].
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+ ;
+
+ _proto.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ var track = mergeOptions(options, {
+ tech: this
+ });
+ return new REMOTE.remoteTextEl.TrackClass(track);
+ }
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.
+ *
+ * @param {Object} options
+ * See {@link Tech#createRemoteTextTrack} for more detailed properties.
+ *
+ * @param {boolean} [manualCleanup=true]
+ * - When false: the TextTrack will be automatically removed from the video
+ * element whenever the source changes
+ * - When True: The TextTrack will have to be cleaned up manually
+ *
+ * @return {HTMLTrackElement}
+ * An Html Track Element.
+ *
+ * @deprecated The default functionality for this function will be equivalent
+ * to "manualCleanup=false" in the future. The manualCleanup parameter will
+ * also be removed.
+ */
+ ;
+
+ _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ var _this7 = this;
+
+ if (options === void 0) {
+ options = {};
+ }
+
+ var htmlTrackElement = this.createRemoteTextTrack(options);
+
+ if (manualCleanup !== true && manualCleanup !== false) {
+ // deprecation warning
+ log.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js');
+ manualCleanup = true;
+ } // store HTMLTrackElement and TextTrack to remote list
+
+
+ this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);
+ this.remoteTextTracks().addTrack(htmlTrackElement.track);
+
+ if (manualCleanup !== true) {
+ // create the TextTrackList if it doesn't exist
+ this.ready(function () {
+ return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track);
+ });
+ }
+
+ return htmlTrackElement;
+ }
+ /**
+ * Remove a remote text track from the remote `TextTrackList`.
+ *
+ * @param {TextTrack} track
+ * `TextTrack` to remove from the `TextTrackList`
+ */
+ ;
+
+ _proto.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track); // remove HTMLTrackElement and TextTrack from remote list
+
+ this.remoteTextTrackEls().removeTrackElement_(trackElement);
+ this.remoteTextTracks().removeTrack(track);
+ this.autoRemoteTextTracks_.removeTrack(track);
+ }
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ *
+ * @abstract
+ */
+ ;
+
+ _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return {};
+ }
+ /**
+ * Attempt to create a floating video window always on top of other windows
+ * so that users may continue consuming media while they interact with other
+ * content sites, or applications on their device.
+ *
+ * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
+ *
+ * @return {Promise|undefined}
+ * A promise with a Picture-in-Picture window if the browser supports
+ * Promises (or one was passed in as an option). It returns undefined
+ * otherwise.
+ *
+ * @abstract
+ */
+ ;
+
+ _proto.requestPictureInPicture = function requestPictureInPicture() {
+ var PromiseClass = this.options_.Promise || window$1.Promise;
+
+ if (PromiseClass) {
+ return PromiseClass.reject();
+ }
+ }
+ /**
+ * A method to set a poster from a `Tech`.
+ *
+ * @abstract
+ */
+ ;
+
+ _proto.setPoster = function setPoster() {}
+ /**
+ * A method to check for the presence of the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+ ;
+
+ _proto.playsinline = function playsinline() {}
+ /**
+ * A method to set or unset the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+ ;
+
+ _proto.setPlaysinline = function setPlaysinline() {}
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ *
+ * @abstract
+ */
+ ;
+
+ _proto.overrideNativeAudioTracks = function overrideNativeAudioTracks() {}
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ *
+ * @abstract
+ */
+ ;
+
+ _proto.overrideNativeVideoTracks = function overrideNativeVideoTracks() {}
+ /*
+ * Check if the tech can support the given mime-type.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The mimetype to check for support
+ *
+ * @return {string}
+ * 'probably', 'maybe', or empty string
+ *
+ * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}
+ *
+ * @abstract
+ */
+ ;
+
+ _proto.canPlayType = function canPlayType() {
+ return '';
+ }
+ /**
+ * Check if the type is supported by this tech.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The media type to check
+ * @return {string} Returns the native video element's response
+ */
+ ;
+
+ Tech.canPlayType = function canPlayType() {
+ return '';
+ }
+ /**
+ * Check if the tech can support the given source
+ *
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+ ;
+
+ Tech.canPlaySource = function canPlaySource(srcObj, options) {
+ return Tech.canPlayType(srcObj.type);
+ }
+ /*
+ * Return whether the argument is a Tech or not.
+ * Can be passed either a Class like `Html5` or a instance like `player.tech_`
+ *
+ * @param {Object} component
+ * The item to check
+ *
+ * @return {boolean}
+ * Whether it is a tech or not
+ * - True if it is a tech
+ * - False if it is not
+ */
+ ;
+
+ Tech.isTech = function isTech(component) {
+ return component.prototype instanceof Tech || component instanceof Tech || component === Tech;
+ }
+ /**
+ * Registers a `Tech` into a shared list for videojs.
+ *
+ * @param {string} name
+ * Name of the `Tech` to register.
+ *
+ * @param {Object} tech
+ * The `Tech` class to register.
+ */
+ ;
+
+ Tech.registerTech = function registerTech(name, tech) {
+ if (!Tech.techs_) {
+ Tech.techs_ = {};
+ }
+
+ if (!Tech.isTech(tech)) {
+ throw new Error("Tech " + name + " must be a Tech");
+ }
+
+ if (!Tech.canPlayType) {
+ throw new Error('Techs must have a static canPlayType method on them');
+ }
+
+ if (!Tech.canPlaySource) {
+ throw new Error('Techs must have a static canPlaySource method on them');
+ }
+
+ name = toTitleCase(name);
+ Tech.techs_[name] = tech;
+ Tech.techs_[toLowerCase(name)] = tech;
+
+ if (name !== 'Tech') {
+ // camel case the techName for use in techOrder
+ Tech.defaultTechOrder_.push(name);
+ }
+
+ return tech;
+ }
+ /**
+ * Get a `Tech` from the shared list by name.
+ *
+ * @param {string} name
+ * `camelCase` or `TitleCase` name of the Tech to get
+ *
+ * @return {Tech|undefined}
+ * The `Tech` or undefined if there was no tech with the name requested.
+ */
+ ;
+
+ Tech.getTech = function getTech(name) {
+ if (!name) {
+ return;
+ }
+
+ if (Tech.techs_ && Tech.techs_[name]) {
+ return Tech.techs_[name];
+ }
+
+ name = toTitleCase(name);
+
+ if (window$1 && window$1.videojs && window$1.videojs[name]) {
+ log.warn("The " + name + " tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)");
+ return window$1.videojs[name];
+ }
+ };
+
+ return Tech;
+}(Component);
+/**
+ * Get the {@link VideoTrackList}
+ *
+ * @returns {VideoTrackList}
+ * @method Tech.prototype.videoTracks
+ */
+
+/**
+ * Get the {@link AudioTrackList}
+ *
+ * @returns {AudioTrackList}
+ * @method Tech.prototype.audioTracks
+ */
+
+/**
+ * Get the {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.textTracks
+ */
+
+/**
+ * Get the remote element {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.remoteTextTracks
+ */
+
+/**
+ * Get the remote element {@link HtmlTrackElementList}
+ *
+ * @returns {HtmlTrackElementList}
+ * @method Tech.prototype.remoteTextTrackEls
+ */
+
+
+ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ Tech.prototype[props.getterName] = function () {
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+});
+/**
+ * List of associated text tracks
+ *
+ * @type {TextTrackList}
+ * @private
+ * @property Tech#textTracks_
+ */
+
+/**
+ * List of associated audio tracks.
+ *
+ * @type {AudioTrackList}
+ * @private
+ * @property Tech#audioTracks_
+ */
+
+/**
+ * List of associated video tracks.
+ *
+ * @type {VideoTrackList}
+ * @private
+ * @property Tech#videoTracks_
+ */
+
+/**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default
+ */
+
+Tech.prototype.featuresVolumeControl = true;
+/**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default
+ */
+
+Tech.prototype.featuresMuteControl = true;
+/**
+ * Boolean indicating whether the `Tech` supports fullscreen resize control.
+ * Resizing plugins using request fullscreen reloads the plugin
+ *
+ * @type {boolean}
+ * @default
+ */
+
+Tech.prototype.featuresFullscreenResize = false;
+/**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the video
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default
+ */
+
+Tech.prototype.featuresPlaybackRate = false;
+/**
+ * Boolean indicating whether the `Tech` supports the `progress` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualProgressOn} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+
+Tech.prototype.featuresProgressEvents = false;
+/**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * A tech should set this to `true` and then use {@link Tech#triggerSourceset}
+ * to trigger a {@link Tech#event:sourceset} at the earliest time after getting
+ * a new source.
+ *
+ * @type {boolean}
+ * @default
+ */
+
+Tech.prototype.featuresSourceset = false;
+/**
+ * Boolean indicating whether the `Tech` supports the `timeupdate` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualTimeUpdates} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+
+Tech.prototype.featuresTimeupdateEvents = false;
+/**
+ * Boolean indicating whether the `Tech` supports the native `TextTrack`s.
+ * This will help us integrate with native `TextTrack`s if the browser supports them.
+ *
+ * @type {boolean}
+ * @default
+ */
+
+Tech.prototype.featuresNativeTextTracks = false;
+/**
+ * A functional mixin for techs that want to use the Source Handler pattern.
+ * Source handlers are scripts for handling specific formats.
+ * The source handler pattern is used for adaptive formats (HLS, DASH) that
+ * manually load video data and feed it into a Source Buffer (Media Source Extensions)
+ * Example: `Tech.withSourceHandlers.call(MyTech);`
+ *
+ * @param {Tech} _Tech
+ * The tech to add source handler functions to.
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ */
+
+Tech.withSourceHandlers = function (_Tech) {
+ /**
+ * Register a source handler
+ *
+ * @param {Function} handler
+ * The source handler class
+ *
+ * @param {number} [index]
+ * Register it at the following index
+ */
+ _Tech.registerSourceHandler = function (handler, index) {
+ var handlers = _Tech.sourceHandlers;
+
+ if (!handlers) {
+ handlers = _Tech.sourceHandlers = [];
+ }
+
+ if (index === undefined) {
+ // add to the end of the list
+ index = handlers.length;
+ }
+
+ handlers.splice(index, 0, handler);
+ };
+ /**
+ * Check if the tech can support the given type. Also checks the
+ * Techs sourceHandlers.
+ *
+ * @param {string} type
+ * The mimetype to check.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ _Tech.canPlayType = function (type) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+
+ return '';
+ };
+ /**
+ * Returns the first source handler that supports the source.
+ *
+ * TODO: Answer question: should 'probably' be prioritized over 'maybe'
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {SourceHandler|null}
+ * The first source handler that supports the source or null if
+ * no SourceHandler supports the source
+ */
+
+
+ _Tech.selectSourceHandler = function (source, options) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canHandleSource(source, options);
+
+ if (can) {
+ return handlers[i];
+ }
+ }
+
+ return null;
+ };
+ /**
+ * Check if the tech can support the given source.
+ *
+ * @param {Tech~SourceObject} srcObj
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ _Tech.canPlaySource = function (srcObj, options) {
+ var sh = _Tech.selectSourceHandler(srcObj, options);
+
+ if (sh) {
+ return sh.canHandleSource(srcObj, options);
+ }
+
+ return '';
+ };
+ /**
+ * When using a source handler, prefer its implementation of
+ * any function normally provided by the tech.
+ */
+
+
+ var deferrable = ['seekable', 'seeking', 'duration'];
+ /**
+ * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable
+ * function if it exists, with a fallback to the Techs seekable function.
+ *
+ * @method _Tech.seekable
+ */
+
+ /**
+ * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration
+ * function if it exists, otherwise it will fallback to the techs duration function.
+ *
+ * @method _Tech.duration
+ */
+
+ deferrable.forEach(function (fnName) {
+ var originalFn = this[fnName];
+
+ if (typeof originalFn !== 'function') {
+ return;
+ }
+
+ this[fnName] = function () {
+ if (this.sourceHandler_ && this.sourceHandler_[fnName]) {
+ return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);
+ }
+
+ return originalFn.apply(this, arguments);
+ };
+ }, _Tech.prototype);
+ /**
+ * Create a function for setting the source using a source object
+ * and source handlers.
+ * Should never be called unless a source handler was found.
+ *
+ * @param {Tech~SourceObject} source
+ * A source object with src and type keys
+ */
+
+ _Tech.prototype.setSource = function (source) {
+ var sh = _Tech.selectSourceHandler(source, this.options_);
+
+ if (!sh) {
+ // Fall back to a native source hander when unsupported sources are
+ // deliberately set
+ if (_Tech.nativeSourceHandler) {
+ sh = _Tech.nativeSourceHandler;
+ } else {
+ log.error('No source handler found for the current source.');
+ }
+ } // Dispose any existing source handler
+
+
+ this.disposeSourceHandler();
+ this.off('dispose', this.disposeSourceHandler);
+
+ if (sh !== _Tech.nativeSourceHandler) {
+ this.currentSource_ = source;
+ }
+
+ this.sourceHandler_ = sh.handleSource(source, this, this.options_);
+ this.one('dispose', this.disposeSourceHandler);
+ };
+ /**
+ * Clean up any existing SourceHandlers and listeners when the Tech is disposed.
+ *
+ * @listens Tech#dispose
+ */
+
+
+ _Tech.prototype.disposeSourceHandler = function () {
+ // if we have a source and get another one
+ // then we are loading something new
+ // than clear all of our current tracks
+ if (this.currentSource_) {
+ this.clearTracks(['audio', 'video']);
+ this.currentSource_ = null;
+ } // always clean up auto-text tracks
+
+
+ this.cleanupAutoTextTracks();
+
+ if (this.sourceHandler_) {
+ if (this.sourceHandler_.dispose) {
+ this.sourceHandler_.dispose();
+ }
+
+ this.sourceHandler_ = null;
+ }
+ };
+}; // The base Tech class needs to be registered as a Component. It is the only
+// Tech that can be registered as a Component.
+
+
+Component.registerComponent('Tech', Tech);
+Tech.registerTech('Tech', Tech);
+/**
+ * A list of techs that should be added to techOrder on Players
+ *
+ * @private
+ */
+
+Tech.defaultTechOrder_ = [];
+
+/**
+ * @file middleware.js
+ * @module middleware
+ */
+var middlewares = {};
+var middlewareInstances = {};
+var TERMINATOR = {};
+/**
+ * A middleware object is a plain JavaScript object that has methods that
+ * match the {@link Tech} methods found in the lists of allowed
+ * {@link module:middleware.allowedGetters|getters},
+ * {@link module:middleware.allowedSetters|setters}, and
+ * {@link module:middleware.allowedMediators|mediators}.
+ *
+ * @typedef {Object} MiddlewareObject
+ */
+
+/**
+ * A middleware factory function that should return a
+ * {@link module:middleware~MiddlewareObject|MiddlewareObject}.
+ *
+ * This factory will be called for each player when needed, with the player
+ * passed in as an argument.
+ *
+ * @callback MiddlewareFactory
+ * @param {Player} player
+ * A Video.js player.
+ */
+
+/**
+ * Define a middleware that the player should use by way of a factory function
+ * that returns a middleware object.
+ *
+ * @param {string} type
+ * The MIME type to match or `"*"` for all MIME types.
+ *
+ * @param {MiddlewareFactory} middleware
+ * A middleware factory function that will be executed for
+ * matching types.
+ */
+
+function use(type, middleware) {
+ middlewares[type] = middlewares[type] || [];
+ middlewares[type].push(middleware);
+}
+/**
+ * Asynchronously sets a source using middleware by recursing through any
+ * matching middlewares and calling `setSource` on each, passing along the
+ * previous returned value each time.
+ *
+ * @param {Player} player
+ * A {@link Player} instance.
+ *
+ * @param {Tech~SourceObject} src
+ * A source object.
+ *
+ * @param {Function}
+ * The next middleware to run.
+ */
+
+function setSource(player, src, next) {
+ player.setTimeout(function () {
+ return setSourceHelper(src, middlewares[src.type], next, player);
+ }, 1);
+}
+/**
+ * When the tech is set, passes the tech to each middleware's `setTech` method.
+ *
+ * @param {Object[]} middleware
+ * An array of middleware instances.
+ *
+ * @param {Tech} tech
+ * A Video.js tech.
+ */
+
+function setTech(middleware, tech) {
+ middleware.forEach(function (mw) {
+ return mw.setTech && mw.setTech(tech);
+ });
+}
+/**
+ * Calls a getter on the tech first, through each middleware
+ * from right to left to the player.
+ *
+ * @param {Object[]} middleware
+ * An array of middleware instances.
+ *
+ * @param {Tech} tech
+ * The current tech.
+ *
+ * @param {string} method
+ * A method name.
+ *
+ * @return {Mixed}
+ * The final value from the tech after middleware has intercepted it.
+ */
+
+function get(middleware, tech, method) {
+ return middleware.reduceRight(middlewareIterator(method), tech[method]());
+}
+/**
+ * Takes the argument given to the player and calls the setter method on each
+ * middleware from left to right to the tech.
+ *
+ * @param {Object[]} middleware
+ * An array of middleware instances.
+ *
+ * @param {Tech} tech
+ * The current tech.
+ *
+ * @param {string} method
+ * A method name.
+ *
+ * @param {Mixed} arg
+ * The value to set on the tech.
+ *
+ * @return {Mixed}
+ * The return value of the `method` of the `tech`.
+ */
+
+function set(middleware, tech, method, arg) {
+ return tech[method](middleware.reduce(middlewareIterator(method), arg));
+}
+/**
+ * Takes the argument given to the player and calls the `call` version of the
+ * method on each middleware from left to right.
+ *
+ * Then, call the passed in method on the tech and return the result unchanged
+ * back to the player, through middleware, this time from right to left.
+ *
+ * @param {Object[]} middleware
+ * An array of middleware instances.
+ *
+ * @param {Tech} tech
+ * The current tech.
+ *
+ * @param {string} method
+ * A method name.
+ *
+ * @param {Mixed} arg
+ * The value to set on the tech.
+ *
+ * @return {Mixed}
+ * The return value of the `method` of the `tech`, regardless of the
+ * return values of middlewares.
+ */
+
+function mediate(middleware, tech, method, arg) {
+ if (arg === void 0) {
+ arg = null;
+ }
+
+ var callMethod = 'call' + toTitleCase(method);
+ var middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);
+ var terminated = middlewareValue === TERMINATOR; // deprecated. The `null` return value should instead return TERMINATOR to
+ // prevent confusion if a techs method actually returns null.
+
+ var returnValue = terminated ? null : tech[method](middlewareValue);
+ executeRight(middleware, method, returnValue, terminated);
+ return returnValue;
+}
+/**
+ * Enumeration of allowed getters where the keys are method names.
+ *
+ * @type {Object}
+ */
+
+var allowedGetters = {
+ buffered: 1,
+ currentTime: 1,
+ duration: 1,
+ seekable: 1,
+ played: 1,
+ paused: 1,
+ volume: 1
+};
+/**
+ * Enumeration of allowed setters where the keys are method names.
+ *
+ * @type {Object}
+ */
+
+var allowedSetters = {
+ setCurrentTime: 1,
+ setVolume: 1
+};
+/**
+ * Enumeration of allowed mediators where the keys are method names.
+ *
+ * @type {Object}
+ */
+
+var allowedMediators = {
+ play: 1,
+ pause: 1
+};
+
+function middlewareIterator(method) {
+ return function (value, mw) {
+ // if the previous middleware terminated, pass along the termination
+ if (value === TERMINATOR) {
+ return TERMINATOR;
+ }
+
+ if (mw[method]) {
+ return mw[method](value);
+ }
+
+ return value;
+ };
+}
+
+function executeRight(mws, method, value, terminated) {
+ for (var i = mws.length - 1; i >= 0; i--) {
+ var mw = mws[i];
+
+ if (mw[method]) {
+ mw[method](terminated, value);
+ }
+ }
+}
+/**
+ * Clear the middleware cache for a player.
+ *
+ * @param {Player} player
+ * A {@link Player} instance.
+ */
+
+
+function clearCacheForPlayer(player) {
+ middlewareInstances[player.id()] = null;
+}
+/**
+ * {
+ * [playerId]: [[mwFactory, mwInstance], ...]
+ * }
+ *
+ * @private
+ */
+
+function getOrCreateFactory(player, mwFactory) {
+ var mws = middlewareInstances[player.id()];
+ var mw = null;
+
+ if (mws === undefined || mws === null) {
+ mw = mwFactory(player);
+ middlewareInstances[player.id()] = [[mwFactory, mw]];
+ return mw;
+ }
+
+ for (var i = 0; i < mws.length; i++) {
+ var _mws$i = mws[i],
+ mwf = _mws$i[0],
+ mwi = _mws$i[1];
+
+ if (mwf !== mwFactory) {
+ continue;
+ }
+
+ mw = mwi;
+ }
+
+ if (mw === null) {
+ mw = mwFactory(player);
+ mws.push([mwFactory, mw]);
+ }
+
+ return mw;
+}
+
+function setSourceHelper(src, middleware, next, player, acc, lastRun) {
+ if (src === void 0) {
+ src = {};
+ }
+
+ if (middleware === void 0) {
+ middleware = [];
+ }
+
+ if (acc === void 0) {
+ acc = [];
+ }
+
+ if (lastRun === void 0) {
+ lastRun = false;
+ }
+
+ var _middleware = middleware,
+ mwFactory = _middleware[0],
+ mwrest = _middleware.slice(1); // if mwFactory is a string, then we're at a fork in the road
+
+
+ if (typeof mwFactory === 'string') {
+ setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun); // if we have an mwFactory, call it with the player to get the mw,
+ // then call the mw's setSource method
+ } else if (mwFactory) {
+ var mw = getOrCreateFactory(player, mwFactory); // if setSource isn't present, implicitly select this middleware
+
+ if (!mw.setSource) {
+ acc.push(mw);
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ mw.setSource(assign({}, src), function (err, _src) {
+ // something happened, try the next middleware on the current level
+ // make sure to use the old src
+ if (err) {
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ } // we've succeeded, now we need to go deeper
+
+
+ acc.push(mw); // if it's the same type, continue down the current chain
+ // otherwise, we want to go down the new chain
+
+ setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);
+ });
+ } else if (mwrest.length) {
+ setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ } else if (lastRun) {
+ next(src, acc);
+ } else {
+ setSourceHelper(src, middlewares['*'], next, player, acc, true);
+ }
+}
+
+/**
+ * Mimetypes
+ *
+ * @see http://hul.harvard.edu/ois/////systems/wax/wax-public-help/mimetypes.htm
+ * @typedef Mimetypes~Kind
+ * @enum
+ */
+
+var MimetypesKind = {
+ opus: 'video/ogg',
+ ogv: 'video/ogg',
+ mp4: 'video/mp4',
+ mov: 'video/mp4',
+ m4v: 'video/mp4',
+ mkv: 'video/x-matroska',
+ m4a: 'audio/mp4',
+ mp3: 'audio/mpeg',
+ aac: 'audio/aac',
+ oga: 'audio/ogg',
+ m3u8: 'application/x-mpegURL',
+ jpg: 'image/jpeg',
+ jpeg: 'image/jpeg',
+ gif: 'image/gif',
+ png: 'image/png',
+ svg: 'image/svg+xml',
+ webp: 'image/webp'
+};
+/**
+ * Get the mimetype of a given src url if possible
+ *
+ * @param {string} src
+ * The url to the src
+ *
+ * @return {string}
+ * return the mimetype if it was known or empty string otherwise
+ */
+
+var getMimetype = function getMimetype(src) {
+ if (src === void 0) {
+ src = '';
+ }
+
+ var ext = getFileExtension(src);
+ var mimetype = MimetypesKind[ext.toLowerCase()];
+ return mimetype || '';
+};
+/**
+ * Find the mime type of a given source string if possible. Uses the player
+ * source cache.
+ *
+ * @param {Player} player
+ * The player object
+ *
+ * @param {string} src
+ * The source string
+ *
+ * @return {string}
+ * The type that was found
+ */
+
+var findMimetype = function findMimetype(player, src) {
+ if (!src) {
+ return '';
+ } // 1. check for the type in the `source` cache
+
+
+ if (player.cache_.source.src === src && player.cache_.source.type) {
+ return player.cache_.source.type;
+ } // 2. see if we have this source in our `currentSources` cache
+
+
+ var matchingSources = player.cache_.sources.filter(function (s) {
+ return s.src === src;
+ });
+
+ if (matchingSources.length) {
+ return matchingSources[0].type;
+ } // 3. look for the src url in source elements and use the type there
+
+
+ var sources = player.$$('source');
+
+ for (var i = 0; i < sources.length; i++) {
+ var s = sources[i];
+
+ if (s.type && s.src && s.src === src) {
+ return s.type;
+ }
+ } // 4. finally fallback to our list of mime types based on src url extension
+
+
+ return getMimetype(src);
+};
+
+/**
+ * @module filter-source
+ */
+/**
+ * Filter out single bad source objects or multiple source objects in an
+ * array. Also flattens nested source object arrays into a 1 dimensional
+ * array of source objects.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]} src
+ * The src object to filter
+ *
+ * @return {Tech~SourceObject[]}
+ * An array of sourceobjects containing only valid sources
+ *
+ * @private
+ */
+
+var filterSource = function filterSource(src) {
+ // traverse array
+ if (Array.isArray(src)) {
+ var newsrc = [];
+ src.forEach(function (srcobj) {
+ srcobj = filterSource(srcobj);
+
+ if (Array.isArray(srcobj)) {
+ newsrc = newsrc.concat(srcobj);
+ } else if (isObject(srcobj)) {
+ newsrc.push(srcobj);
+ }
+ });
+ src = newsrc;
+ } else if (typeof src === 'string' && src.trim()) {
+ // convert string into object
+ src = [fixSource({
+ src: src
+ })];
+ } else if (isObject(src) && typeof src.src === 'string' && src.src && src.src.trim()) {
+ // src is already valid
+ src = [fixSource(src)];
+ } else {
+ // invalid source, turn it into an empty array
+ src = [];
+ }
+
+ return src;
+};
+/**
+ * Checks src mimetype, adding it when possible
+ *
+ * @param {Tech~SourceObject} src
+ * The src object to check
+ * @return {Tech~SourceObject}
+ * src Object with known type
+ */
+
+
+function fixSource(src) {
+ if (!src.type) {
+ var mimetype = getMimetype(src.src);
+
+ if (mimetype) {
+ src.type = mimetype;
+ }
+ }
+
+ return src;
+}
+
+/**
+ * The `MediaLoader` is the `Component` that decides which playback technology to load
+ * when a player is initialized.
+ *
+ * @extends Component
+ */
+
+var MediaLoader =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(MediaLoader, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function that is run when this component is ready.
+ */
+ function MediaLoader(player, options, ready) {
+ var _this;
+
+ // MediaLoader has no element
+ var options_ = mergeOptions({
+ createEl: false
+ }, options);
+ _this = _Component.call(this, player, options_, ready) || this; // If there are no sources when the player is initialized,
+ // load the first supported playback technology.
+
+ if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {
+ for (var i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {
+ var techName = toTitleCase(j[i]);
+ var tech = Tech.getTech(techName); // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+
+ if (!techName) {
+ tech = Component.getComponent(techName);
+ } // Check if the browser supports this technology
+
+
+ if (tech && tech.isSupported()) {
+ player.loadTech_(techName);
+ break;
+ }
+ }
+ } else {
+ // Loop through playback technologies (HTML5, Flash) and check for support.
+ // Then load the best source.
+ // A few assumptions here:
+ // All playback technologies respect preload false.
+ player.src(options.playerOptions.sources);
+ }
+
+ return _this;
+ }
+
+ return MediaLoader;
+}(Component);
+
+Component.registerComponent('MediaLoader', MediaLoader);
+
+/**
+ * Component which is clickable or keyboard actionable, but is not a
+ * native HTML button.
+ *
+ * @extends Component
+ */
+
+var ClickableComponent =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(ClickableComponent, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ClickableComponent(player, options) {
+ var _this;
+
+ _this = _Component.call(this, player, options) || this;
+
+ _this.emitTapEvents();
+
+ _this.enable();
+
+ return _this;
+ }
+ /**
+ * Create the `ClickableComponent`s DOM element.
+ *
+ * @param {string} [tag=div]
+ * The element's node type.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ var _proto = ClickableComponent.prototype;
+
+ _proto.createEl = function createEl(tag, props, attributes) {
+ if (tag === void 0) {
+ tag = 'div';
+ }
+
+ if (props === void 0) {
+ props = {};
+ }
+
+ if (attributes === void 0) {
+ attributes = {};
+ }
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass(),
+ tabIndex: 0
+ }, props);
+
+ if (tag === 'button') {
+ log.error("Creating a ClickableComponent with an HTML element of " + tag + " is not supported; use a Button instead.");
+ } // Add ARIA attributes for clickable element which is not a native HTML button
+
+
+ attributes = assign({
+ role: 'button'
+ }, attributes);
+ this.tabIndex_ = props.tabIndex;
+
+ var el = _Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+ return el;
+ };
+
+ _proto.dispose = function dispose() {
+ // remove controlTextEl_ on dispose
+ this.controlTextEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ }
+ /**
+ * Create a control text element on this `ClickableComponent`
+ *
+ * @param {Element} [el]
+ * Parent element for the control text.
+ *
+ * @return {Element}
+ * The control text element that gets created.
+ */
+ ;
+
+ _proto.createControlTextEl = function createControlTextEl(el) {
+ this.controlTextEl_ = createEl('span', {
+ className: 'vjs-control-text'
+ }, {
+ // let the screen reader user know that the text of the element may change
+ 'aria-live': 'polite'
+ });
+
+ if (el) {
+ el.appendChild(this.controlTextEl_);
+ }
+
+ this.controlText(this.controlText_, el);
+ return this.controlTextEl_;
+ }
+ /**
+ * Get or set the localize text to use for the controls on the `ClickableComponent`.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+ ;
+
+ _proto.controlText = function controlText(text, el) {
+ if (el === void 0) {
+ el = this.el();
+ }
+
+ if (text === undefined) {
+ return this.controlText_ || 'Need Text';
+ }
+
+ var localizedText = this.localize(text);
+ this.controlText_ = text;
+ textContent(this.controlTextEl_, localizedText);
+
+ if (!this.nonIconControl) {
+ // Set title attribute if only an icon is shown
+ el.setAttribute('title', localizedText);
+ }
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ ;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-control vjs-button " + _Component.prototype.buildCSSClass.call(this);
+ }
+ /**
+ * Enable this `ClickableComponent`
+ */
+ ;
+
+ _proto.enable = function enable() {
+ if (!this.enabled_) {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'false');
+
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.setAttribute('tabIndex', this.tabIndex_);
+ }
+
+ this.on(['tap', 'click'], this.handleClick);
+ this.on('keydown', this.handleKeyDown);
+ }
+ }
+ /**
+ * Disable this `ClickableComponent`
+ */
+ ;
+
+ _proto.disable = function disable() {
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'true');
+
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.removeAttribute('tabIndex');
+ }
+
+ this.off('mouseover', this.handleMouseOver);
+ this.off('mouseout', this.handleMouseOut);
+ this.off(['tap', 'click'], this.handleClick);
+ this.off('keydown', this.handleKeyDown);
+ }
+ /**
+ * Event handler that is called when a `ClickableComponent` receives a
+ * `click` or `tap` event.
+ *
+ * @param {EventTarget~Event} event
+ * The `tap` or `click` event that caused this function to be called.
+ *
+ * @listens tap
+ * @listens click
+ * @abstract
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {}
+ /**
+ * Event handler that is called when a `ClickableComponent` receives a
+ * `keydown` event.
+ *
+ * By default, if the key is Space or Enter, it will trigger a `click` event.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+ ;
+
+ _proto.handleKeyDown = function handleKeyDown(event) {
+ // Support Space or Enter key operation to fire a click event. Also,
+ // prevent the event from propagating through the DOM and triggering
+ // Player hotkeys.
+ if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {
+ event.preventDefault();
+ event.stopPropagation();
+ this.trigger('click');
+ } else {
+ // Pass keypress handling up for unsupported keys
+ _Component.prototype.handleKeyDown.call(this, event);
+ }
+ };
+
+ return ClickableComponent;
+}(Component);
+
+Component.registerComponent('ClickableComponent', ClickableComponent);
+
+/**
+ * A `ClickableComponent` that handles showing the poster image for the player.
+ *
+ * @extends ClickableComponent
+ */
+
+var PosterImage =
+/*#__PURE__*/
+function (_ClickableComponent) {
+ _inheritsLoose(PosterImage, _ClickableComponent);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PosterImage(player, options) {
+ var _this;
+
+ _this = _ClickableComponent.call(this, player, options) || this;
+
+ _this.update();
+
+ player.on('posterchange', bind(_assertThisInitialized(_this), _this.update));
+ return _this;
+ }
+ /**
+ * Clean up and dispose of the `PosterImage`.
+ */
+
+
+ var _proto = PosterImage.prototype;
+
+ _proto.dispose = function dispose() {
+ this.player().off('posterchange', this.update);
+
+ _ClickableComponent.prototype.dispose.call(this);
+ }
+ /**
+ * Create the `PosterImage`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+ ;
+
+ _proto.createEl = function createEl$1() {
+ var el = createEl('div', {
+ className: 'vjs-poster',
+ // Don't want poster to be tabbable.
+ tabIndex: -1
+ });
+ return el;
+ }
+ /**
+ * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.
+ *
+ * @listens Player#posterchange
+ *
+ * @param {EventTarget~Event} [event]
+ * The `Player#posterchange` event that triggered this function.
+ */
+ ;
+
+ _proto.update = function update(event) {
+ var url = this.player().poster();
+ this.setSrc(url); // If there's no poster source we should display:none on this component
+ // so it's not still clickable or right-clickable
+
+ if (url) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ }
+ /**
+ * Set the source of the `PosterImage` depending on the display method.
+ *
+ * @param {string} url
+ * The URL to the source for the `PosterImage`.
+ */
+ ;
+
+ _proto.setSrc = function setSrc(url) {
+ var backgroundImage = ''; // Any falsy value should stay as an empty string, otherwise
+ // this will throw an extra error
+
+ if (url) {
+ backgroundImage = "url(\"" + url + "\")";
+ }
+
+ this.el_.style.backgroundImage = backgroundImage;
+ }
+ /**
+ * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See
+ * {@link ClickableComponent#handleClick} for instances where this will be triggered.
+ *
+ * @listens tap
+ * @listens click
+ * @listens keydown
+ *
+ * @param {EventTarget~Event} event
+ + The `click`, `tap` or `keydown` event that caused this function to be called.
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {
+ // We don't want a click to trigger playback when controls are disabled
+ if (!this.player_.controls()) {
+ return;
+ }
+
+ if (this.player_.tech(true)) {
+ this.player_.tech(true).focus();
+ }
+
+ if (this.player_.paused()) {
+ silencePromise(this.player_.play());
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ return PosterImage;
+}(ClickableComponent);
+
+Component.registerComponent('PosterImage', PosterImage);
+
+var darkGray = '#222';
+var lightGray = '#ccc';
+var fontMap = {
+ monospace: 'monospace',
+ sansSerif: 'sans-serif',
+ serif: 'serif',
+ monospaceSansSerif: '"Andale Mono", "Lucida Console", monospace',
+ monospaceSerif: '"Courier New", monospace',
+ proportionalSansSerif: 'sans-serif',
+ proportionalSerif: 'serif',
+ casual: '"Comic Sans MS", Impact, fantasy',
+ script: '"Monotype Corsiva", cursive',
+ smallcaps: '"Andale Mono", "Lucida Console", monospace, sans-serif'
+};
+/**
+ * Construct an rgba color from a given hex color code.
+ *
+ * @param {number} color
+ * Hex number for color, like #f0e or #f604e2.
+ *
+ * @param {number} opacity
+ * Value for opacity, 0.0 - 1.0.
+ *
+ * @return {string}
+ * The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.
+ */
+
+function constructColor(color, opacity) {
+ var hex;
+
+ if (color.length === 4) {
+ // color looks like "#f0e"
+ hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];
+ } else if (color.length === 7) {
+ // color looks like "#f604e2"
+ hex = color.slice(1);
+ } else {
+ throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');
+ }
+
+ return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';
+}
+/**
+ * Try to update the style of a DOM element. Some style changes will throw an error,
+ * particularly in IE8. Those should be noops.
+ *
+ * @param {Element} el
+ * The DOM element to be styled.
+ *
+ * @param {string} style
+ * The CSS property on the element that should be styled.
+ *
+ * @param {string} rule
+ * The style rule that should be applied to the property.
+ *
+ * @private
+ */
+
+function tryUpdateStyle(el, style, rule) {
+ try {
+ el.style[style] = rule;
+ } catch (e) {
+ // Satisfies linter.
+ return;
+ }
+}
+/**
+ * The component for displaying text track cues.
+ *
+ * @extends Component
+ */
+
+
+var TextTrackDisplay =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(TextTrackDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when `TextTrackDisplay` is ready.
+ */
+ function TextTrackDisplay(player, options, ready) {
+ var _this;
+
+ _this = _Component.call(this, player, options, ready) || this;
+ var updateDisplayHandler = bind(_assertThisInitialized(_this), _this.updateDisplay);
+ player.on('loadstart', bind(_assertThisInitialized(_this), _this.toggleDisplay));
+ player.on('texttrackchange', updateDisplayHandler);
+ player.on('loadedmetadata', bind(_assertThisInitialized(_this), _this.preselectTrack)); // This used to be called during player init, but was causing an error
+ // if a track should show by default and the display hadn't loaded yet.
+ // Should probably be moved to an external track loader when we support
+ // tracks that don't need a display.
+
+ player.ready(bind(_assertThisInitialized(_this), function () {
+ if (player.tech_ && player.tech_.featuresNativeTextTracks) {
+ this.hide();
+ return;
+ }
+
+ player.on('fullscreenchange', updateDisplayHandler);
+ player.on('playerresize', updateDisplayHandler);
+ window$1.addEventListener('orientationchange', updateDisplayHandler);
+ player.on('dispose', function () {
+ return window$1.removeEventListener('orientationchange', updateDisplayHandler);
+ });
+ var tracks = this.options_.playerOptions.tracks || [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ this.player_.addRemoteTextTrack(tracks[i], true);
+ }
+
+ this.preselectTrack();
+ }));
+ return _this;
+ }
+ /**
+ * Preselect a track following this precedence:
+ * - matches the previously selected {@link TextTrack}'s language and kind
+ * - matches the previously selected {@link TextTrack}'s language only
+ * - is the first default captions track
+ * - is the first default descriptions track
+ *
+ * @listens Player#loadstart
+ */
+
+
+ var _proto = TextTrackDisplay.prototype;
+
+ _proto.preselectTrack = function preselectTrack() {
+ var modes = {
+ captions: 1,
+ subtitles: 1
+ };
+ var trackList = this.player_.textTracks();
+ var userPref = this.player_.cache_.selectedLanguage;
+ var firstDesc;
+ var firstCaptions;
+ var preferredTrack;
+
+ for (var i = 0; i < trackList.length; i++) {
+ var track = trackList[i];
+
+ if (userPref && userPref.enabled && userPref.language && userPref.language === track.language && track.kind in modes) {
+ // Always choose the track that matches both language and kind
+ if (track.kind === userPref.kind) {
+ preferredTrack = track; // or choose the first track that matches language
+ } else if (!preferredTrack) {
+ preferredTrack = track;
+ } // clear everything if offTextTrackMenuItem was clicked
+
+ } else if (userPref && !userPref.enabled) {
+ preferredTrack = null;
+ firstDesc = null;
+ firstCaptions = null;
+ } else if (track["default"]) {
+ if (track.kind === 'descriptions' && !firstDesc) {
+ firstDesc = track;
+ } else if (track.kind in modes && !firstCaptions) {
+ firstCaptions = track;
+ }
+ }
+ } // The preferredTrack matches the user preference and takes
+ // precedence over all the other tracks.
+ // So, display the preferredTrack before the first default track
+ // and the subtitles/captions track before the descriptions track
+
+
+ if (preferredTrack) {
+ preferredTrack.mode = 'showing';
+ } else if (firstCaptions) {
+ firstCaptions.mode = 'showing';
+ } else if (firstDesc) {
+ firstDesc.mode = 'showing';
+ }
+ }
+ /**
+ * Turn display of {@link TextTrack}'s from the current state into the other state.
+ * There are only two states:
+ * - 'shown'
+ * - 'hidden'
+ *
+ * @listens Player#loadstart
+ */
+ ;
+
+ _proto.toggleDisplay = function toggleDisplay() {
+ if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ }
+ /**
+ * Create the {@link Component}'s DOM element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ ;
+
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-text-track-display'
+ }, {
+ 'aria-live': 'off',
+ 'aria-atomic': 'true'
+ });
+ }
+ /**
+ * Clear all displayed {@link TextTrack}s.
+ */
+ ;
+
+ _proto.clearDisplay = function clearDisplay() {
+ if (typeof window$1.WebVTT === 'function') {
+ window$1.WebVTT.processCues(window$1, [], this.el_);
+ }
+ }
+ /**
+ * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or
+ * a {@link Player#fullscreenchange} is fired.
+ *
+ * @listens Player#texttrackchange
+ * @listens Player#fullscreenchange
+ */
+ ;
+
+ _proto.updateDisplay = function updateDisplay() {
+ var tracks = this.player_.textTracks();
+ var allowMultipleShowingTracks = this.options_.allowMultipleShowingTracks;
+ this.clearDisplay();
+
+ if (allowMultipleShowingTracks) {
+ var showingTracks = [];
+
+ for (var _i = 0; _i < tracks.length; ++_i) {
+ var track = tracks[_i];
+
+ if (track.mode !== 'showing') {
+ continue;
+ }
+
+ showingTracks.push(track);
+ }
+
+ this.updateForTrack(showingTracks);
+ return;
+ } // Track display prioritization model: if multiple tracks are 'showing',
+ // display the first 'subtitles' or 'captions' track which is 'showing',
+ // otherwise display the first 'descriptions' track which is 'showing'
+
+
+ var descriptionsTrack = null;
+ var captionsSubtitlesTrack = null;
+ var i = tracks.length;
+
+ while (i--) {
+ var _track = tracks[i];
+
+ if (_track.mode === 'showing') {
+ if (_track.kind === 'descriptions') {
+ descriptionsTrack = _track;
+ } else {
+ captionsSubtitlesTrack = _track;
+ }
+ }
+ }
+
+ if (captionsSubtitlesTrack) {
+ if (this.getAttribute('aria-live') !== 'off') {
+ this.setAttribute('aria-live', 'off');
+ }
+
+ this.updateForTrack(captionsSubtitlesTrack);
+ } else if (descriptionsTrack) {
+ if (this.getAttribute('aria-live') !== 'assertive') {
+ this.setAttribute('aria-live', 'assertive');
+ }
+
+ this.updateForTrack(descriptionsTrack);
+ }
+ }
+ /**
+ * Style {@Link TextTrack} activeCues according to {@Link TextTrackSettings}.
+ *
+ * @param {TextTrack} track
+ * Text track object containing active cues to style.
+ */
+ ;
+
+ _proto.updateDisplayState = function updateDisplayState(track) {
+ var overrides = this.player_.textTrackSettings.getValues();
+ var cues = track.activeCues;
+ var i = cues.length;
+
+ while (i--) {
+ var cue = cues[i];
+
+ if (!cue) {
+ continue;
+ }
+
+ var cueDiv = cue.displayState;
+
+ if (overrides.color) {
+ cueDiv.firstChild.style.color = overrides.color;
+ }
+
+ if (overrides.textOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));
+ }
+
+ if (overrides.backgroundColor) {
+ cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;
+ }
+
+ if (overrides.backgroundOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));
+ }
+
+ if (overrides.windowColor) {
+ if (overrides.windowOpacity) {
+ tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));
+ } else {
+ cueDiv.style.backgroundColor = overrides.windowColor;
+ }
+ }
+
+ if (overrides.edgeStyle) {
+ if (overrides.edgeStyle === 'dropshadow') {
+ cueDiv.firstChild.style.textShadow = "2px 2px 3px " + darkGray + ", 2px 2px 4px " + darkGray + ", 2px 2px 5px " + darkGray;
+ } else if (overrides.edgeStyle === 'raised') {
+ cueDiv.firstChild.style.textShadow = "1px 1px " + darkGray + ", 2px 2px " + darkGray + ", 3px 3px " + darkGray;
+ } else if (overrides.edgeStyle === 'depressed') {
+ cueDiv.firstChild.style.textShadow = "1px 1px " + lightGray + ", 0 1px " + lightGray + ", -1px -1px " + darkGray + ", 0 -1px " + darkGray;
+ } else if (overrides.edgeStyle === 'uniform') {
+ cueDiv.firstChild.style.textShadow = "0 0 4px " + darkGray + ", 0 0 4px " + darkGray + ", 0 0 4px " + darkGray + ", 0 0 4px " + darkGray;
+ }
+ }
+
+ if (overrides.fontPercent && overrides.fontPercent !== 1) {
+ var fontSize = window$1.parseFloat(cueDiv.style.fontSize);
+ cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';
+ cueDiv.style.height = 'auto';
+ cueDiv.style.top = 'auto';
+ cueDiv.style.bottom = '2px';
+ }
+
+ if (overrides.fontFamily && overrides.fontFamily !== 'default') {
+ if (overrides.fontFamily === 'small-caps') {
+ cueDiv.firstChild.style.fontVariant = 'small-caps';
+ } else {
+ cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];
+ }
+ }
+ }
+ }
+ /**
+ * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.
+ *
+ * @param {TextTrack|TextTrack[]} tracks
+ * Text track object or text track array to be added to the list.
+ */
+ ;
+
+ _proto.updateForTrack = function updateForTrack(tracks) {
+ if (!Array.isArray(tracks)) {
+ tracks = [tracks];
+ }
+
+ if (typeof window$1.WebVTT !== 'function' || tracks.every(function (track) {
+ return !track.activeCues;
+ })) {
+ return;
+ }
+
+ var cues = []; // push all active track cues
+
+ for (var i = 0; i < tracks.length; ++i) {
+ var track = tracks[i];
+
+ for (var j = 0; j < track.activeCues.length; ++j) {
+ cues.push(track.activeCues[j]);
+ }
+ } // removes all cues before it processes new ones
+
+
+ window$1.WebVTT.processCues(window$1, cues, this.el_); // add unique class to each language text track & add settings styling if necessary
+
+ for (var _i2 = 0; _i2 < tracks.length; ++_i2) {
+ var _track2 = tracks[_i2];
+
+ for (var _j = 0; _j < _track2.activeCues.length; ++_j) {
+ var cueEl = _track2.activeCues[_j].displayState;
+ addClass(cueEl, 'vjs-text-track-cue');
+ addClass(cueEl, 'vjs-text-track-cue-' + (_track2.language ? _track2.language : _i2));
+ }
+
+ if (this.player_.textTrackSettings) {
+ this.updateDisplayState(_track2);
+ }
+ }
+ };
+
+ return TextTrackDisplay;
+}(Component);
+
+Component.registerComponent('TextTrackDisplay', TextTrackDisplay);
+
+/**
+ * A loading spinner for use during waiting/loading events.
+ *
+ * @extends Component
+ */
+
+var LoadingSpinner =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(LoadingSpinner, _Component);
+
+ function LoadingSpinner() {
+ return _Component.apply(this, arguments) || this;
+ }
+
+ var _proto = LoadingSpinner.prototype;
+
+ /**
+ * Create the `LoadingSpinner`s DOM element.
+ *
+ * @return {Element}
+ * The dom element that gets created.
+ */
+ _proto.createEl = function createEl$1() {
+ var isAudio = this.player_.isAudio();
+ var playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');
+ var controlText = createEl('span', {
+ className: 'vjs-control-text',
+ innerHTML: this.localize('{1} is loading.', [playerType])
+ });
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-loading-spinner',
+ dir: 'ltr'
+ });
+
+ el.appendChild(controlText);
+ return el;
+ };
+
+ return LoadingSpinner;
+}(Component);
+
+Component.registerComponent('LoadingSpinner', LoadingSpinner);
+
+/**
+ * Base class for all buttons.
+ *
+ * @extends ClickableComponent
+ */
+
+var Button =
+/*#__PURE__*/
+function (_ClickableComponent) {
+ _inheritsLoose(Button, _ClickableComponent);
+
+ function Button() {
+ return _ClickableComponent.apply(this, arguments) || this;
+ }
+
+ var _proto = Button.prototype;
+
+ /**
+ * Create the `Button`s DOM element.
+ *
+ * @param {string} [tag="button"]
+ * The element's node type. This argument is IGNORED: no matter what
+ * is passed, it will always create a `button` element.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+ _proto.createEl = function createEl(tag, props, attributes) {
+ if (props === void 0) {
+ props = {};
+ }
+
+ if (attributes === void 0) {
+ attributes = {};
+ }
+
+ tag = 'button';
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass()
+ }, props); // Add attributes for button element
+
+ attributes = assign({
+ // Necessary since the default button type is "submit"
+ type: 'button'
+ }, attributes);
+ var el = Component.prototype.createEl.call(this, tag, props, attributes);
+ this.createControlTextEl(el);
+ return el;
+ }
+ /**
+ * Add a child `Component` inside of this `Button`.
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ *
+ * @deprecated since version 5
+ */
+ ;
+
+ _proto.addChild = function addChild(child, options) {
+ if (options === void 0) {
+ options = {};
+ }
+
+ var className = this.constructor.name;
+ log.warn("Adding an actionable (user controllable) child to a Button (" + className + ") is not supported; use a ClickableComponent instead."); // Avoid the error message generated by ClickableComponent's addChild method
+
+ return Component.prototype.addChild.call(this, child, options);
+ }
+ /**
+ * Enable the `Button` element so that it can be activated or clicked. Use this with
+ * {@link Button#disable}.
+ */
+ ;
+
+ _proto.enable = function enable() {
+ _ClickableComponent.prototype.enable.call(this);
+
+ this.el_.removeAttribute('disabled');
+ }
+ /**
+ * Disable the `Button` element so that it cannot be activated or clicked. Use this with
+ * {@link Button#enable}.
+ */
+ ;
+
+ _proto.disable = function disable() {
+ _ClickableComponent.prototype.disable.call(this);
+
+ this.el_.setAttribute('disabled', 'disabled');
+ }
+ /**
+ * This gets called when a `Button` has focus and `keydown` is triggered via a key
+ * press.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to get called.
+ *
+ * @listens keydown
+ */
+ ;
+
+ _proto.handleKeyDown = function handleKeyDown(event) {
+ // Ignore Space or Enter key operation, which is handled by the browser for
+ // a button - though not for its super class, ClickableComponent. Also,
+ // prevent the event from propagating through the DOM and triggering Player
+ // hotkeys. We do not preventDefault here because we _want_ the browser to
+ // handle it.
+ if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {
+ event.stopPropagation();
+ return;
+ } // Pass keypress handling up for unsupported keys
+
+
+ _ClickableComponent.prototype.handleKeyDown.call(this, event);
+ };
+
+ return Button;
+}(ClickableComponent);
+
+Component.registerComponent('Button', Button);
+
+/**
+ * The initial play button that shows before the video has played. The hiding of the
+ * `BigPlayButton` get done via CSS and `Player` states.
+ *
+ * @extends Button
+ */
+
+var BigPlayButton =
+/*#__PURE__*/
+function (_Button) {
+ _inheritsLoose(BigPlayButton, _Button);
+
+ function BigPlayButton(player, options) {
+ var _this;
+
+ _this = _Button.call(this, player, options) || this;
+ _this.mouseused_ = false;
+
+ _this.on('mousedown', _this.handleMouseDown);
+
+ return _this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object. Always returns 'vjs-big-play-button'.
+ */
+
+
+ var _proto = BigPlayButton.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return 'vjs-big-play-button';
+ }
+ /**
+ * This gets called when a `BigPlayButton` "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {
+ var playPromise = this.player_.play(); // exit early if clicked via the mouse
+
+ if (this.mouseused_ && event.clientX && event.clientY) {
+ silencePromise(playPromise);
+
+ if (this.player_.tech(true)) {
+ this.player_.tech(true).focus();
+ }
+
+ return;
+ }
+
+ var cb = this.player_.getChild('controlBar');
+ var playToggle = cb && cb.getChild('playToggle');
+
+ if (!playToggle) {
+ this.player_.tech(true).focus();
+ return;
+ }
+
+ var playFocus = function playFocus() {
+ return playToggle.focus();
+ };
+
+ if (isPromise(playPromise)) {
+ playPromise.then(playFocus, function () {});
+ } else {
+ this.setTimeout(playFocus, 1);
+ }
+ };
+
+ _proto.handleKeyDown = function handleKeyDown(event) {
+ this.mouseused_ = false;
+
+ _Button.prototype.handleKeyDown.call(this, event);
+ };
+
+ _proto.handleMouseDown = function handleMouseDown(event) {
+ this.mouseused_ = true;
+ };
+
+ return BigPlayButton;
+}(Button);
+/**
+ * The text that should display over the `BigPlayButton`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+BigPlayButton.prototype.controlText_ = 'Play Video';
+Component.registerComponent('BigPlayButton', BigPlayButton);
+
+/**
+ * The `CloseButton` is a `{@link Button}` that fires a `close` event when
+ * it gets clicked.
+ *
+ * @extends Button
+ */
+
+var CloseButton =
+/*#__PURE__*/
+function (_Button) {
+ _inheritsLoose(CloseButton, _Button);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CloseButton(player, options) {
+ var _this;
+
+ _this = _Button.call(this, player, options) || this;
+
+ _this.controlText(options && options.controlText || _this.localize('Close'));
+
+ return _this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = CloseButton.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-close-button " + _Button.prototype.buildCSSClass.call(this);
+ }
+ /**
+ * This gets called when a `CloseButton` gets clicked. See
+ * {@link ClickableComponent#handleClick} for more information on when
+ * this will be triggered
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @fires CloseButton#close
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {
+ /**
+ * Triggered when the a `CloseButton` is clicked.
+ *
+ * @event CloseButton#close
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up to parents if there is no listener
+ */
+ this.trigger({
+ type: 'close',
+ bubbles: false
+ });
+ }
+ /**
+ * Event handler that is called when a `CloseButton` receives a
+ * `keydown` event.
+ *
+ * By default, if the key is Esc, it will trigger a `click` event.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+ ;
+
+ _proto.handleKeyDown = function handleKeyDown(event) {
+ // Esc button will trigger `click` event
+ if (keycode.isEventKey(event, 'Esc')) {
+ event.preventDefault();
+ event.stopPropagation();
+ this.trigger('click');
+ } else {
+ // Pass keypress handling up for unsupported keys
+ _Button.prototype.handleKeyDown.call(this, event);
+ }
+ };
+
+ return CloseButton;
+}(Button);
+
+Component.registerComponent('CloseButton', CloseButton);
+
+/**
+ * Button to toggle between play and pause.
+ *
+ * @extends Button
+ */
+
+var PlayToggle =
+/*#__PURE__*/
+function (_Button) {
+ _inheritsLoose(PlayToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function PlayToggle(player, options) {
+ var _this;
+
+ if (options === void 0) {
+ options = {};
+ }
+
+ _this = _Button.call(this, player, options) || this; // show or hide replay icon
+
+ options.replay = options.replay === undefined || options.replay;
+
+ _this.on(player, 'play', _this.handlePlay);
+
+ _this.on(player, 'pause', _this.handlePause);
+
+ if (options.replay) {
+ _this.on(player, 'ended', _this.handleEnded);
+ }
+
+ return _this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = PlayToggle.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-play-control " + _Button.prototype.buildCSSClass.call(this);
+ }
+ /**
+ * This gets called when an `PlayToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ }
+ /**
+ * This gets called once after the video has ended and the user seeks so that
+ * we can change the replay button back to a play button.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#seeked
+ */
+ ;
+
+ _proto.handleSeeked = function handleSeeked(event) {
+ this.removeClass('vjs-ended');
+
+ if (this.player_.paused()) {
+ this.handlePause(event);
+ } else {
+ this.handlePlay(event);
+ }
+ }
+ /**
+ * Add the vjs-playing class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#play
+ */
+ ;
+
+ _proto.handlePlay = function handlePlay(event) {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing'); // change the button text to "Pause"
+
+ this.controlText('Pause');
+ }
+ /**
+ * Add the vjs-paused class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#pause
+ */
+ ;
+
+ _proto.handlePause = function handlePause(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused'); // change the button text to "Play"
+
+ this.controlText('Play');
+ }
+ /**
+ * Add the vjs-ended class to the element so it can change appearance
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ended
+ */
+ ;
+
+ _proto.handleEnded = function handleEnded(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-ended'); // change the button text to "Replay"
+
+ this.controlText('Replay'); // on the next seek remove the replay button
+
+ this.one(this.player_, 'seeked', this.handleSeeked);
+ };
+
+ return PlayToggle;
+}(Button);
+/**
+ * The text that should display over the `PlayToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+PlayToggle.prototype.controlText_ = 'Play';
+Component.registerComponent('PlayToggle', PlayToggle);
+
+/**
+ * @file format-time.js
+ * @module format-time
+ */
+
+/**
+ * Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in
+ * seconds) will force a number of leading zeros to cover the length of the
+ * guide.
+ *
+ * @private
+ * @param {number} seconds
+ * Number of seconds to be turned into a string
+ *
+ * @param {number} guide
+ * Number (in seconds) to model the string after
+ *
+ * @return {string}
+ * Time formatted as H:MM:SS or M:SS
+ */
+var defaultImplementation = function defaultImplementation(seconds, guide) {
+ seconds = seconds < 0 ? 0 : seconds;
+ var s = Math.floor(seconds % 60);
+ var m = Math.floor(seconds / 60 % 60);
+ var h = Math.floor(seconds / 3600);
+ var gm = Math.floor(guide / 60 % 60);
+ var gh = Math.floor(guide / 3600); // handle invalid times
+
+ if (isNaN(seconds) || seconds === Infinity) {
+ // '-' is false for all relational operators (e.g. <, >=) so this setting
+ // will add the minimum number of fields specified by the guide
+ h = m = s = '-';
+ } // Check if we need to show hours
+
+
+ h = h > 0 || gh > 0 ? h + ':' : ''; // If hours are showing, we may need to add a leading zero.
+ // Always show at least one digit of minutes.
+
+ m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':'; // Check if leading zero is need for seconds
+
+ s = s < 10 ? '0' + s : s;
+ return h + m + s;
+}; // Internal pointer to the current implementation.
+
+
+var implementation = defaultImplementation;
+/**
+ * Replaces the default formatTime implementation with a custom implementation.
+ *
+ * @param {Function} customImplementation
+ * A function which will be used in place of the default formatTime
+ * implementation. Will receive the current time in seconds and the
+ * guide (in seconds) as arguments.
+ */
+
+function setFormatTime(customImplementation) {
+ implementation = customImplementation;
+}
+/**
+ * Resets formatTime to the default implementation.
+ */
+
+function resetFormatTime() {
+ implementation = defaultImplementation;
+}
+/**
+ * Delegates to either the default time formatting function or a custom
+ * function supplied via `setFormatTime`.
+ *
+ * Formats seconds as a time string (H:MM:SS or M:SS). Supplying a
+ * guide (in seconds) will force a number of leading zeros to cover the
+ * length of the guide.
+ *
+ * @static
+ * @example formatTime(125, 600) === "02:05"
+ * @param {number} seconds
+ * Number of seconds to be turned into a string
+ *
+ * @param {number} guide
+ * Number (in seconds) to model the string after
+ *
+ * @return {string}
+ * Time formatted as H:MM:SS or M:SS
+ */
+
+function formatTime(seconds, guide) {
+ if (guide === void 0) {
+ guide = seconds;
+ }
+
+ return implementation(seconds, guide);
+}
+
+/**
+ * Displays time information about the video
+ *
+ * @extends Component
+ */
+
+var TimeDisplay =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(TimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TimeDisplay(player, options) {
+ var _this;
+
+ _this = _Component.call(this, player, options) || this;
+ _this.throttledUpdateContent = throttle(bind(_assertThisInitialized(_this), _this.updateContent), UPDATE_REFRESH_INTERVAL);
+
+ _this.on(player, 'timeupdate', _this.throttledUpdateContent);
+
+ return _this;
+ }
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ var _proto = TimeDisplay.prototype;
+
+ _proto.createEl = function createEl$1() {
+ var className = this.buildCSSClass();
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: className + " vjs-time-control vjs-control",
+ innerHTML: "<span class=\"vjs-control-text\" role=\"presentation\">" + this.localize(this.labelText_) + "\xA0</span>"
+ });
+
+ this.contentEl_ = createEl('span', {
+ className: className + "-display"
+ }, {
+ // tell screen readers not to automatically read the time as it changes
+ 'aria-live': 'off',
+ // span elements have no implicit role, but some screen readers (notably VoiceOver)
+ // treat them as a break between items in the DOM when using arrow keys
+ // (or left-to-right swipes on iOS) to read contents of a page. Using
+ // role='presentation' causes VoiceOver to NOT treat this span as a break.
+ 'role': 'presentation'
+ });
+ this.updateTextNode_();
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ _proto.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.textNode_ = null;
+
+ _Component.prototype.dispose.call(this);
+ }
+ /**
+ * Updates the "remaining time" text node with new content using the
+ * contents of the `formattedTime_` property.
+ *
+ * @private
+ */
+ ;
+
+ _proto.updateTextNode_ = function updateTextNode_() {
+ if (!this.contentEl_) {
+ return;
+ }
+
+ while (this.contentEl_.firstChild) {
+ this.contentEl_.removeChild(this.contentEl_.firstChild);
+ }
+
+ this.textNode_ = document.createTextNode(this.formattedTime_ || this.formatTime_(0));
+ this.contentEl_.appendChild(this.textNode_);
+ }
+ /**
+ * Generates a formatted time for this component to use in display.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+ ;
+
+ _proto.formatTime_ = function formatTime_(time) {
+ return formatTime(time);
+ }
+ /**
+ * Updates the time display text node if it has what was passed in changed
+ * the formatted time.
+ *
+ * @param {number} time
+ * The time to update to
+ *
+ * @private
+ */
+ ;
+
+ _proto.updateFormattedTime_ = function updateFormattedTime_(time) {
+ var formattedTime = this.formatTime_(time);
+
+ if (formattedTime === this.formattedTime_) {
+ return;
+ }
+
+ this.formattedTime_ = formattedTime;
+ this.requestAnimationFrame(this.updateTextNode_);
+ }
+ /**
+ * To be filled out in the child class, should update the displayed time
+ * in accordance with the fact that the current time has changed.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ */
+ ;
+
+ _proto.updateContent = function updateContent(event) {};
+
+ return TimeDisplay;
+}(Component);
+/**
+ * The text that is added to the `TimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+TimeDisplay.prototype.labelText_ = 'Time';
+/**
+ * The text that should display over the `TimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+
+TimeDisplay.prototype.controlText_ = 'Time';
+Component.registerComponent('TimeDisplay', TimeDisplay);
+
+/**
+ * Displays the current time
+ *
+ * @extends Component
+ */
+
+var CurrentTimeDisplay =
+/*#__PURE__*/
+function (_TimeDisplay) {
+ _inheritsLoose(CurrentTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CurrentTimeDisplay(player, options) {
+ var _this;
+
+ _this = _TimeDisplay.call(this, player, options) || this;
+
+ _this.on(player, 'ended', _this.handleEnded);
+
+ return _this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = CurrentTimeDisplay.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return 'vjs-current-time';
+ }
+ /**
+ * Update current time display
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this function to run.
+ *
+ * @listens Player#timeupdate
+ */
+ ;
+
+ _proto.updateContent = function updateContent(event) {
+ // Allows for smooth scrubbing, when player can't keep up.
+ var time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+ this.updateFormattedTime_(time);
+ }
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+ ;
+
+ _proto.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+
+ this.updateFormattedTime_(this.player_.duration());
+ };
+
+ return CurrentTimeDisplay;
+}(TimeDisplay);
+/**
+ * The text that is added to the `CurrentTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+CurrentTimeDisplay.prototype.labelText_ = 'Current Time';
+/**
+ * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+
+CurrentTimeDisplay.prototype.controlText_ = 'Current Time';
+Component.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);
+
+/**
+ * Displays the duration
+ *
+ * @extends Component
+ */
+
+var DurationDisplay =
+/*#__PURE__*/
+function (_TimeDisplay) {
+ _inheritsLoose(DurationDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function DurationDisplay(player, options) {
+ var _this;
+
+ _this = _TimeDisplay.call(this, player, options) || this; // we do not want to/need to throttle duration changes,
+ // as they should always display the changed duration as
+ // it has changed
+
+ _this.on(player, 'durationchange', _this.updateContent); // Listen to loadstart because the player duration is reset when a new media element is loaded,
+ // but the durationchange on the user agent will not fire.
+ // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}
+
+
+ _this.on(player, 'loadstart', _this.updateContent); // Also listen for timeupdate (in the parent) and loadedmetadata because removing those
+ // listeners could have broken dependent applications/libraries. These
+ // can likely be removed for 7.0.
+
+
+ _this.on(player, 'loadedmetadata', _this.throttledUpdateContent);
+
+ return _this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = DurationDisplay.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return 'vjs-duration';
+ }
+ /**
+ * Update duration time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused
+ * this function to be called.
+ *
+ * @listens Player#durationchange
+ * @listens Player#timeupdate
+ * @listens Player#loadedmetadata
+ */
+ ;
+
+ _proto.updateContent = function updateContent(event) {
+ var duration = this.player_.duration();
+
+ if (this.duration_ !== duration) {
+ this.duration_ = duration;
+ this.updateFormattedTime_(duration);
+ }
+ };
+
+ return DurationDisplay;
+}(TimeDisplay);
+/**
+ * The text that is added to the `DurationDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+DurationDisplay.prototype.labelText_ = 'Duration';
+/**
+ * The text that should display over the `DurationDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+
+DurationDisplay.prototype.controlText_ = 'Duration';
+Component.registerComponent('DurationDisplay', DurationDisplay);
+
+/**
+ * The separator between the current time and duration.
+ * Can be hidden if it's not needed in the design.
+ *
+ * @extends Component
+ */
+
+var TimeDivider =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(TimeDivider, _Component);
+
+ function TimeDivider() {
+ return _Component.apply(this, arguments) || this;
+ }
+
+ var _proto = TimeDivider.prototype;
+
+ /**
+ * Create the component's DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-control vjs-time-divider',
+ innerHTML: '<div><span>/</span></div>'
+ }, {
+ // this element and its contents can be hidden from assistive techs since
+ // it is made extraneous by the announcement of the control text
+ // for the current time and duration displays
+ 'aria-hidden': true
+ });
+ };
+
+ return TimeDivider;
+}(Component);
+
+Component.registerComponent('TimeDivider', TimeDivider);
+
+/**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+var RemainingTimeDisplay =
+/*#__PURE__*/
+function (_TimeDisplay) {
+ _inheritsLoose(RemainingTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function RemainingTimeDisplay(player, options) {
+ var _this;
+
+ _this = _TimeDisplay.call(this, player, options) || this;
+
+ _this.on(player, 'durationchange', _this.throttledUpdateContent);
+
+ _this.on(player, 'ended', _this.handleEnded);
+
+ return _this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = RemainingTimeDisplay.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return 'vjs-remaining-time';
+ }
+ /**
+ * Create the `Component`'s DOM element with the "minus" characted prepend to the time
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ ;
+
+ _proto.createEl = function createEl$1() {
+ var el = _TimeDisplay.prototype.createEl.call(this);
+
+ el.insertBefore(createEl('span', {}, {
+ 'aria-hidden': true
+ }, '-'), this.contentEl_);
+ return el;
+ }
+ /**
+ * Update remaining time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `durationchange` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ * @listens Player#durationchange
+ */
+ ;
+
+ _proto.updateContent = function updateContent(event) {
+ if (typeof this.player_.duration() !== 'number') {
+ return;
+ } // @deprecated We should only use remainingTimeDisplay
+ // as of video.js 7
+
+
+ if (this.player_.remainingTimeDisplay) {
+ this.updateFormattedTime_(this.player_.remainingTimeDisplay());
+ } else {
+ this.updateFormattedTime_(this.player_.remainingTime());
+ }
+ }
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+ ;
+
+ _proto.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+
+ this.updateFormattedTime_(0);
+ };
+
+ return RemainingTimeDisplay;
+}(TimeDisplay);
+/**
+ * The text that is added to the `RemainingTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';
+/**
+ * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+
+RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';
+Component.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);
+
+/**
+ * Displays the live indicator when duration is Infinity.
+ *
+ * @extends Component
+ */
+
+var LiveDisplay =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(LiveDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LiveDisplay(player, options) {
+ var _this;
+
+ _this = _Component.call(this, player, options) || this;
+
+ _this.updateShowing();
+
+ _this.on(_this.player(), 'durationchange', _this.updateShowing);
+
+ return _this;
+ }
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ var _proto = LiveDisplay.prototype;
+
+ _proto.createEl = function createEl$1() {
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-live-control vjs-control'
+ });
+
+ this.contentEl_ = createEl('div', {
+ className: 'vjs-live-display',
+ innerHTML: "<span class=\"vjs-control-text\">" + this.localize('Stream Type') + "\xA0</span>" + this.localize('LIVE')
+ }, {
+ 'aria-live': 'off'
+ });
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ _proto.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ }
+ /**
+ * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide
+ * it accordingly
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#durationchange} event that caused this function to run.
+ *
+ * @listens Player#durationchange
+ */
+ ;
+
+ _proto.updateShowing = function updateShowing(event) {
+ if (this.player().duration() === Infinity) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ return LiveDisplay;
+}(Component);
+
+Component.registerComponent('LiveDisplay', LiveDisplay);
+
+/**
+ * Displays the live indicator when duration is Infinity.
+ *
+ * @extends Component
+ */
+
+var SeekToLive =
+/*#__PURE__*/
+function (_Button) {
+ _inheritsLoose(SeekToLive, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function SeekToLive(player, options) {
+ var _this;
+
+ _this = _Button.call(this, player, options) || this;
+
+ _this.updateLiveEdgeStatus();
+
+ if (_this.player_.liveTracker) {
+ _this.on(_this.player_.liveTracker, 'liveedgechange', _this.updateLiveEdgeStatus);
+ }
+
+ return _this;
+ }
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ var _proto = SeekToLive.prototype;
+
+ _proto.createEl = function createEl$1() {
+ var el = _Button.prototype.createEl.call(this, 'button', {
+ className: 'vjs-seek-to-live-control vjs-control'
+ });
+
+ this.textEl_ = createEl('span', {
+ className: 'vjs-seek-to-live-text',
+ innerHTML: this.localize('LIVE')
+ }, {
+ 'aria-hidden': 'true'
+ });
+ el.appendChild(this.textEl_);
+ return el;
+ }
+ /**
+ * Update the state of this button if we are at the live edge
+ * or not
+ */
+ ;
+
+ _proto.updateLiveEdgeStatus = function updateLiveEdgeStatus(e) {
+ // default to live edge
+ if (!this.player_.liveTracker || this.player_.liveTracker.atLiveEdge()) {
+ this.setAttribute('aria-disabled', true);
+ this.addClass('vjs-at-live-edge');
+ this.controlText('Seek to live, currently playing live');
+ } else {
+ this.setAttribute('aria-disabled', false);
+ this.removeClass('vjs-at-live-edge');
+ this.controlText('Seek to live, currently behind live');
+ }
+ }
+ /**
+ * On click bring us as near to the live point as possible.
+ * This requires that we wait for the next `live-seekable-change`
+ * event which will happen every segment length seconds.
+ */
+ ;
+
+ _proto.handleClick = function handleClick() {
+ this.player_.liveTracker.seekToLiveEdge();
+ }
+ /**
+ * Dispose of the element and stop tracking
+ */
+ ;
+
+ _proto.dispose = function dispose() {
+ if (this.player_.liveTracker) {
+ this.off(this.player_.liveTracker, 'liveedgechange', this.updateLiveEdgeStatus);
+ }
+
+ this.textEl_ = null;
+
+ _Button.prototype.dispose.call(this);
+ };
+
+ return SeekToLive;
+}(Button);
+
+SeekToLive.prototype.controlText_ = 'Seek to live, currently playing live';
+Component.registerComponent('SeekToLive', SeekToLive);
+
+/**
+ * The base functionality for a slider. Can be vertical or horizontal.
+ * For instance the volume bar or the seek bar on a video is a slider.
+ *
+ * @extends Component
+ */
+
+var Slider =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(Slider, _Component);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function Slider(player, options) {
+ var _this;
+
+ _this = _Component.call(this, player, options) || this; // Set property names to bar to match with the child Slider class is looking for
+
+ _this.bar = _this.getChild(_this.options_.barName); // Set a horizontal or vertical class on the slider depending on the slider type
+
+ _this.vertical(!!_this.options_.vertical);
+
+ _this.enable();
+
+ return _this;
+ }
+ /**
+ * Are controls are currently enabled for this slider or not.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ var _proto = Slider.prototype;
+
+ _proto.enabled = function enabled() {
+ return this.enabled_;
+ }
+ /**
+ * Enable controls for this slider if they are disabled
+ */
+ ;
+
+ _proto.enable = function enable() {
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on('mousedown', this.handleMouseDown);
+ this.on('touchstart', this.handleMouseDown);
+ this.on('keydown', this.handleKeyDown);
+ this.on('click', this.handleClick); // TODO: deprecated, controlsvisible does not seem to be fired
+
+ this.on(this.player_, 'controlsvisible', this.update);
+
+ if (this.playerEvent) {
+ this.on(this.player_, this.playerEvent, this.update);
+ }
+
+ this.removeClass('disabled');
+ this.setAttribute('tabindex', 0);
+ this.enabled_ = true;
+ }
+ /**
+ * Disable controls for this slider if they are enabled
+ */
+ ;
+
+ _proto.disable = function disable() {
+ if (!this.enabled()) {
+ return;
+ }
+
+ var doc = this.bar.el_.ownerDocument;
+ this.off('mousedown', this.handleMouseDown);
+ this.off('touchstart', this.handleMouseDown);
+ this.off('keydown', this.handleKeyDown);
+ this.off('click', this.handleClick);
+ this.off(this.player_, 'controlsvisible', this.update);
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ this.removeAttribute('tabindex');
+ this.addClass('disabled');
+
+ if (this.playerEvent) {
+ this.off(this.player_, this.playerEvent, this.update);
+ }
+
+ this.enabled_ = false;
+ }
+ /**
+ * Create the `Slider`s DOM element.
+ *
+ * @param {string} type
+ * Type of element to create.
+ *
+ * @param {Object} [props={}]
+ * List of properties in Object form.
+ *
+ * @param {Object} [attributes={}]
+ * list of attributes in Object form.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+ ;
+
+ _proto.createEl = function createEl(type, props, attributes) {
+ if (props === void 0) {
+ props = {};
+ }
+
+ if (attributes === void 0) {
+ attributes = {};
+ }
+
+ // Add the slider element class to all sub classes
+ props.className = props.className + ' vjs-slider';
+ props = assign({
+ tabIndex: 0
+ }, props);
+ attributes = assign({
+ 'role': 'slider',
+ 'aria-valuenow': 0,
+ 'aria-valuemin': 0,
+ 'aria-valuemax': 100,
+ 'tabIndex': 0
+ }, attributes);
+ return _Component.prototype.createEl.call(this, type, props, attributes);
+ }
+ /**
+ * Handle `mousedown` or `touchstart` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ * @fires Slider#slideractive
+ */
+ ;
+
+ _proto.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.bar.el_.ownerDocument;
+
+ if (event.type === 'mousedown') {
+ event.preventDefault();
+ } // Do not call preventDefault() on touchstart in Chrome
+ // to avoid console warnings. Use a 'touch-action: none' style
+ // instead to prevent unintented scrolling.
+ // https://developers.google.com/web/updates/2017/01/scrolling-intervention
+
+
+ if (event.type === 'touchstart' && !IS_CHROME) {
+ event.preventDefault();
+ }
+
+ blockTextSelection();
+ this.addClass('vjs-sliding');
+ /**
+ * Triggered when the slider is in an active state
+ *
+ * @event Slider#slideractive
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('slideractive');
+ this.on(doc, 'mousemove', this.handleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchmove', this.handleMouseMove);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ this.handleMouseMove(event);
+ }
+ /**
+ * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.
+ * The `mousemove` and `touchmove` events will only only trigger this function during
+ * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and
+ * {@link Slider#handleMouseUp}.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered
+ * this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+ ;
+
+ _proto.handleMouseMove = function handleMouseMove(event) {}
+ /**
+ * Handle `mouseup` or `touchend` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ * @fires Slider#sliderinactive
+ */
+ ;
+
+ _proto.handleMouseUp = function handleMouseUp() {
+ var doc = this.bar.el_.ownerDocument;
+ unblockTextSelection();
+ this.removeClass('vjs-sliding');
+ /**
+ * Triggered when the slider is no longer in an active state.
+ *
+ * @event Slider#sliderinactive
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('sliderinactive');
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ this.update();
+ }
+ /**
+ * Update the progress bar of the `Slider`.
+ *
+ * @return {number}
+ * The percentage of progress the progress bar represents as a
+ * number from 0 to 1.
+ */
+ ;
+
+ _proto.update = function update() {
+ // In VolumeBar init we have a setTimeout for update that pops and update
+ // to the end of the execution stack. The player is destroyed before then
+ // update will cause an error
+ if (!this.el_) {
+ return;
+ } // If scrubbing, we could use a cached value to make the handle keep up
+ // with the user's mouse. On HTML5 browsers scrubbing is really smooth, but
+ // some flash players are slow, so we might want to utilize this later.
+ // var progress = (this.player_.scrubbing()) ? this.player_.getCache().currentTime / this.player_.duration() : this.player_.currentTime() / this.player_.duration();
+
+
+ var progress = this.getPercent();
+ var bar = this.bar; // If there's no bar...
+
+ if (!bar) {
+ return;
+ } // Protect against no duration and other division issues
+
+
+ if (typeof progress !== 'number' || progress !== progress || progress < 0 || progress === Infinity) {
+ progress = 0;
+ } // Convert to a percentage for setting
+
+
+ var percentage = (progress * 100).toFixed(2) + '%';
+ var style = bar.el().style; // Set the new bar width or height
+
+ var sizeKey = this.vertical() ? 'height' : 'width';
+
+ if (style[sizeKey] !== percentage) {
+ style[sizeKey] = percentage;
+ }
+
+ return progress;
+ }
+ /**
+ * Calculate distance for slider
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @return {number}
+ * The current position of the Slider.
+ * - position.x for vertical `Slider`s
+ * - position.y for horizontal `Slider`s
+ */
+ ;
+
+ _proto.calculateDistance = function calculateDistance(event) {
+ var position = getPointerPosition(this.el_, event);
+
+ if (this.vertical()) {
+ return position.y;
+ }
+
+ return position.x;
+ }
+ /**
+ * Handle a `keydown` event on the `Slider`. Watches for left, rigth, up, and down
+ * arrow keys. This function will only be called when the slider has focus. See
+ * {@link Slider#handleFocus} and {@link Slider#handleBlur}.
+ *
+ * @param {EventTarget~Event} event
+ * the `keydown` event that caused this function to run.
+ *
+ * @listens keydown
+ */
+ ;
+
+ _proto.handleKeyDown = function handleKeyDown(event) {
+ // Left and Down Arrows
+ if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {
+ event.preventDefault();
+ event.stopPropagation();
+ this.stepBack(); // Up and Right Arrows
+ } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {
+ event.preventDefault();
+ event.stopPropagation();
+ this.stepForward();
+ } else {
+ // Pass keydown handling up for unsupported keys
+ _Component.prototype.handleKeyDown.call(this, event);
+ }
+ }
+ /**
+ * Listener for click events on slider, used to prevent clicks
+ * from bubbling up to parent elements like button menus.
+ *
+ * @param {Object} event
+ * Event that caused this object to run
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {
+ event.stopPropagation();
+ event.preventDefault();
+ }
+ /**
+ * Get/set if slider is horizontal for vertical
+ *
+ * @param {boolean} [bool]
+ * - true if slider is vertical,
+ * - false is horizontal
+ *
+ * @return {boolean}
+ * - true if slider is vertical, and getting
+ * - false if the slider is horizontal, and getting
+ */
+ ;
+
+ _proto.vertical = function vertical(bool) {
+ if (bool === undefined) {
+ return this.vertical_ || false;
+ }
+
+ this.vertical_ = !!bool;
+
+ if (this.vertical_) {
+ this.addClass('vjs-slider-vertical');
+ } else {
+ this.addClass('vjs-slider-horizontal');
+ }
+ };
+
+ return Slider;
+}(Component);
+
+Component.registerComponent('Slider', Slider);
+
+/**
+ * Shows loading progress
+ *
+ * @extends Component
+ */
+
+var LoadProgressBar =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(LoadProgressBar, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LoadProgressBar(player, options) {
+ var _this;
+
+ _this = _Component.call(this, player, options) || this;
+ _this.partEls_ = [];
+
+ _this.on(player, 'progress', _this.update);
+
+ return _this;
+ }
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ var _proto = LoadProgressBar.prototype;
+
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-load-progress',
+ innerHTML: "<span class=\"vjs-control-text\"><span>" + this.localize('Loaded') + "</span>: <span class=\"vjs-control-text-loaded-percentage\">0%</span></span>"
+ });
+ };
+
+ _proto.dispose = function dispose() {
+ this.partEls_ = null;
+
+ _Component.prototype.dispose.call(this);
+ }
+ /**
+ * Update progress bar
+ *
+ * @param {EventTarget~Event} [event]
+ * The `progress` event that caused this function to run.
+ *
+ * @listens Player#progress
+ */
+ ;
+
+ _proto.update = function update(event) {
+ var liveTracker = this.player_.liveTracker;
+ var buffered = this.player_.buffered();
+ var duration = liveTracker && liveTracker.isLive() ? liveTracker.seekableEnd() : this.player_.duration();
+ var bufferedEnd = this.player_.bufferedEnd();
+ var children = this.partEls_;
+ var controlTextPercentage = this.$('.vjs-control-text-loaded-percentage'); // get the percent width of a time compared to the total end
+
+ var percentify = function percentify(time, end, rounded) {
+ // no NaN
+ var percent = time / end || 0;
+ percent = (percent >= 1 ? 1 : percent) * 100;
+
+ if (rounded) {
+ percent = percent.toFixed(2);
+ }
+
+ return percent + '%';
+ }; // update the width of the progress bar
+
+
+ this.el_.style.width = percentify(bufferedEnd, duration); // update the control-text
+
+ textContent(controlTextPercentage, percentify(bufferedEnd, duration, true)); // add child elements to represent the individual buffered time ranges
+
+ for (var i = 0; i < buffered.length; i++) {
+ var start = buffered.start(i);
+ var end = buffered.end(i);
+ var part = children[i];
+
+ if (!part) {
+ part = this.el_.appendChild(createEl());
+ children[i] = part;
+ } // set the percent based on the width of the progress bar (bufferedEnd)
+
+
+ part.style.left = percentify(start, bufferedEnd);
+ part.style.width = percentify(end - start, bufferedEnd);
+ } // remove unused buffered range elements
+
+
+ for (var _i = children.length; _i > buffered.length; _i--) {
+ this.el_.removeChild(children[_i - 1]);
+ }
+
+ children.length = buffered.length;
+ };
+
+ return LoadProgressBar;
+}(Component);
+
+Component.registerComponent('LoadProgressBar', LoadProgressBar);
+
+/**
+ * Time tooltips display a time above the progress bar.
+ *
+ * @extends Component
+ */
+
+var TimeTooltip =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(TimeTooltip, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The {@link Player} that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TimeTooltip(player, options) {
+ var _this;
+
+ _this = _Component.call(this, player, options) || this;
+ _this.update = throttle(bind(_assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);
+ return _this;
+ }
+ /**
+ * Create the time tooltip DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ var _proto = TimeTooltip.prototype;
+
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-tooltip'
+ }, {
+ 'aria-hidden': 'true'
+ });
+ }
+ /**
+ * Updates the position of the time tooltip relative to the `SeekBar`.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+ ;
+
+ _proto.update = function update(seekBarRect, seekBarPoint, content) {
+ var tooltipRect = getBoundingClientRect(this.el_);
+ var playerRect = getBoundingClientRect(this.player_.el());
+ var seekBarPointPx = seekBarRect.width * seekBarPoint; // do nothing if either rect isn't available
+ // for example, if the player isn't in the DOM for testing
+
+ if (!playerRect || !tooltipRect) {
+ return;
+ } // This is the space left of the `seekBarPoint` available within the bounds
+ // of the player. We calculate any gap between the left edge of the player
+ // and the left edge of the `SeekBar` and add the number of pixels in the
+ // `SeekBar` before hitting the `seekBarPoint`
+
+
+ var spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx; // This is the space right of the `seekBarPoint` available within the bounds
+ // of the player. We calculate the number of pixels from the `seekBarPoint`
+ // to the right edge of the `SeekBar` and add to that any gap between the
+ // right edge of the `SeekBar` and the player.
+
+ var spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right); // This is the number of pixels by which the tooltip will need to be pulled
+ // further to the right to center it over the `seekBarPoint`.
+
+ var pullTooltipBy = tooltipRect.width / 2; // Adjust the `pullTooltipBy` distance to the left or right depending on
+ // the results of the space calculations above.
+
+ if (spaceLeftOfPoint < pullTooltipBy) {
+ pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
+ } else if (spaceRightOfPoint < pullTooltipBy) {
+ pullTooltipBy = spaceRightOfPoint;
+ } // Due to the imprecision of decimal/ratio based calculations and varying
+ // rounding behaviors, there are cases where the spacing adjustment is off
+ // by a pixel or two. This adds insurance to these calculations.
+
+
+ if (pullTooltipBy < 0) {
+ pullTooltipBy = 0;
+ } else if (pullTooltipBy > tooltipRect.width) {
+ pullTooltipBy = tooltipRect.width;
+ }
+
+ this.el_.style.right = "-" + pullTooltipBy + "px";
+ this.write(content);
+ }
+ /**
+ * Write the time to the tooltip DOM element.
+ *
+ * @param {string} content
+ * The formatted time for the tooltip.
+ */
+ ;
+
+ _proto.write = function write(content) {
+ textContent(this.el_, content);
+ }
+ /**
+ * Updates the position of the time tooltip relative to the `SeekBar`.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ *
+ * @param {number} time
+ * The time to update the tooltip to, not used during live playback
+ *
+ * @param {Function} cb
+ * A function that will be called during the request animation frame
+ * for tooltips that need to do additional animations from the default
+ */
+ ;
+
+ _proto.updateTime = function updateTime(seekBarRect, seekBarPoint, time, cb) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var content;
+
+ var duration = _this2.player_.duration();
+
+ if (_this2.player_.liveTracker && _this2.player_.liveTracker.isLive()) {
+ var liveWindow = _this2.player_.liveTracker.liveWindow();
+
+ var secondsBehind = liveWindow - seekBarPoint * liveWindow;
+ content = (secondsBehind < 1 ? '' : '-') + formatTime(secondsBehind, liveWindow);
+ } else {
+ content = formatTime(time, duration);
+ }
+
+ _this2.update(seekBarRect, seekBarPoint, content);
+
+ if (cb) {
+ cb();
+ }
+ });
+ };
+
+ return TimeTooltip;
+}(Component);
+
+Component.registerComponent('TimeTooltip', TimeTooltip);
+
+/**
+ * Used by {@link SeekBar} to display media playback progress as part of the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+var PlayProgressBar =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(PlayProgressBar, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The {@link Player} that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlayProgressBar(player, options) {
+ var _this;
+
+ _this = _Component.call(this, player, options) || this;
+ _this.update = throttle(bind(_assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);
+ return _this;
+ }
+ /**
+ * Create the the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ var _proto = PlayProgressBar.prototype;
+
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-play-progress vjs-slider-bar'
+ }, {
+ 'aria-hidden': 'true'
+ });
+ }
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+ ;
+
+ _proto.update = function update(seekBarRect, seekBarPoint) {
+ var timeTooltip = this.getChild('timeTooltip');
+
+ if (!timeTooltip) {
+ return;
+ }
+
+ var time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+ timeTooltip.updateTime(seekBarRect, seekBarPoint, time);
+ };
+
+ return PlayProgressBar;
+}(Component);
+/**
+ * Default options for {@link PlayProgressBar}.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+PlayProgressBar.prototype.options_ = {
+ children: []
+}; // Time tooltips should not be added to a player on mobile devices
+
+if (!IS_IOS && !IS_ANDROID) {
+ PlayProgressBar.prototype.options_.children.push('timeTooltip');
+}
+
+Component.registerComponent('PlayProgressBar', PlayProgressBar);
+
+/**
+ * The {@link MouseTimeDisplay} component tracks mouse movement over the
+ * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}
+ * indicating the time which is represented by a given point in the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+var MouseTimeDisplay =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(MouseTimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The {@link Player} that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MouseTimeDisplay(player, options) {
+ var _this;
+
+ _this = _Component.call(this, player, options) || this;
+ _this.update = throttle(bind(_assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);
+ return _this;
+ }
+ /**
+ * Create the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ var _proto = MouseTimeDisplay.prototype;
+
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-mouse-display'
+ });
+ }
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+ ;
+
+ _proto.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ var time = seekBarPoint * this.player_.duration();
+ this.getChild('timeTooltip').updateTime(seekBarRect, seekBarPoint, time, function () {
+ _this2.el_.style.left = seekBarRect.width * seekBarPoint + "px";
+ });
+ };
+
+ return MouseTimeDisplay;
+}(Component);
+/**
+ * Default options for `MouseTimeDisplay`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+MouseTimeDisplay.prototype.options_ = {
+ children: ['timeTooltip']
+};
+Component.registerComponent('MouseTimeDisplay', MouseTimeDisplay);
+
+var STEP_SECONDS = 5; // The multiplier of STEP_SECONDS that PgUp/PgDown move the timeline.
+
+var PAGE_KEY_MULTIPLIER = 12; // The interval at which the bar should update as it progresses.
+
+var UPDATE_REFRESH_INTERVAL$1 = 30;
+/**
+ * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}
+ * as its `bar`.
+ *
+ * @extends Slider
+ */
+
+var SeekBar =
+/*#__PURE__*/
+function (_Slider) {
+ _inheritsLoose(SeekBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function SeekBar(player, options) {
+ var _this;
+
+ _this = _Slider.call(this, player, options) || this;
+
+ _this.setEventHandlers_();
+
+ return _this;
+ }
+ /**
+ * Sets the event handlers
+ *
+ * @private
+ */
+
+
+ var _proto = SeekBar.prototype;
+
+ _proto.setEventHandlers_ = function setEventHandlers_() {
+ this.update = throttle(bind(this, this.update), UPDATE_REFRESH_INTERVAL$1);
+ this.on(this.player_, 'timeupdate', this.update);
+ this.on(this.player_, 'ended', this.handleEnded);
+ this.on(this.player_, 'durationchange', this.update);
+
+ if (this.player_.liveTracker) {
+ this.on(this.player_.liveTracker, 'liveedgechange', this.update);
+ } // when playing, let's ensure we smoothly update the play progress bar
+ // via an interval
+
+
+ this.updateInterval = null;
+ this.on(this.player_, ['playing'], this.enableInterval_);
+ this.on(this.player_, ['ended', 'pause', 'waiting'], this.disableInterval_); // we don't need to update the play progress if the document is hidden,
+ // also, this causes the CPU to spike and eventually crash the page on IE11.
+
+ if ('hidden' in document && 'visibilityState' in document) {
+ this.on(document, 'visibilitychange', this.toggleVisibility_);
+ }
+ };
+
+ _proto.toggleVisibility_ = function toggleVisibility_(e) {
+ if (document.hidden) {
+ this.disableInterval_(e);
+ } else {
+ this.enableInterval_(); // we just switched back to the page and someone may be looking, so, update ASAP
+
+ this.requestAnimationFrame(this.update);
+ }
+ };
+
+ _proto.enableInterval_ = function enableInterval_() {
+ var _this2 = this;
+
+ this.clearInterval(this.updateInterval);
+ this.updateInterval = this.setInterval(function () {
+ _this2.requestAnimationFrame(_this2.update);
+ }, UPDATE_REFRESH_INTERVAL$1);
+ };
+
+ _proto.disableInterval_ = function disableInterval_(e) {
+ if (this.player_.liveTracker && this.player_.liveTracker.isLive() && e.type !== 'ended') {
+ return;
+ }
+
+ this.clearInterval(this.updateInterval);
+ }
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ ;
+
+ _proto.createEl = function createEl() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-holder'
+ }, {
+ 'aria-label': this.localize('Progress Bar')
+ });
+ }
+ /**
+ * This function updates the play progress bar and accessibility
+ * attributes to whatever is passed in.
+ *
+ * @param {number} currentTime
+ * The currentTime value that should be used for accessibility
+ *
+ * @param {number} percent
+ * The percentage as a decimal that the bar should be filled from 0-1.
+ *
+ * @private
+ */
+ ;
+
+ _proto.update_ = function update_(currentTime, percent) {
+ var liveTracker = this.player_.liveTracker;
+ var duration = this.player_.duration();
+
+ if (liveTracker && liveTracker.isLive()) {
+ duration = this.player_.liveTracker.liveCurrentTime();
+ } // machine readable value of progress bar (percentage complete)
+
+
+ this.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2)); // human readable value of progress bar (time complete)
+
+ this.el_.setAttribute('aria-valuetext', this.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}')); // Update the `PlayProgressBar`.
+
+ if (this.bar) {
+ this.bar.update(getBoundingClientRect(this.el_), percent);
+ }
+ }
+ /**
+ * Update the seek bar's UI.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ *
+ * @return {number}
+ * The current percent at a number from 0-1
+ */
+ ;
+
+ _proto.update = function update(event) {
+ // if the offsetParent is null, then this element is hidden, in which case
+ // we don't need to update it.
+ if (this.el().offsetParent === null) {
+ return;
+ }
+
+ var percent = _Slider.prototype.update.call(this);
+
+ this.update_(this.getCurrentTime_(), percent);
+ return percent;
+ }
+ /**
+ * Get the value of current time but allows for smooth scrubbing,
+ * when player can't keep up.
+ *
+ * @return {number}
+ * The current time value to display
+ *
+ * @private
+ */
+ ;
+
+ _proto.getCurrentTime_ = function getCurrentTime_() {
+ return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+ }
+ /**
+ * We want the seek bar to be full on ended
+ * no matter what the actual internal values are. so we force it.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+ ;
+
+ _proto.handleEnded = function handleEnded(event) {
+ this.update_(this.player_.duration(), 1);
+ }
+ /**
+ * Get the percentage of media played so far.
+ *
+ * @return {number}
+ * The percentage of media played so far (0 to 1).
+ */
+ ;
+
+ _proto.getPercent = function getPercent() {
+ var currentTime = this.getCurrentTime_();
+ var percent;
+ var liveTracker = this.player_.liveTracker;
+
+ if (liveTracker && liveTracker.isLive()) {
+ percent = (currentTime - liveTracker.seekableStart()) / liveTracker.liveWindow(); // prevent the percent from changing at the live edge
+
+ if (liveTracker.atLiveEdge()) {
+ percent = 1;
+ }
+ } else {
+ percent = currentTime / this.player_.duration();
+ }
+
+ return percent >= 1 ? 1 : percent || 0;
+ }
+ /**
+ * Handle mouse down on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+ ;
+
+ _proto.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ } // Stop event propagation to prevent double fire in progress-control.js
+
+
+ event.stopPropagation();
+ this.player_.scrubbing(true);
+ this.videoWasPlaying = !this.player_.paused();
+ this.player_.pause();
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ }
+ /**
+ * Handle mouse move on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this to run.
+ *
+ * @listens mousemove
+ */
+ ;
+
+ _proto.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ var newTime;
+ var distance = this.calculateDistance(event);
+ var liveTracker = this.player_.liveTracker;
+
+ if (!liveTracker || !liveTracker.isLive()) {
+ newTime = distance * this.player_.duration(); // Don't let video end while scrubbing.
+
+ if (newTime === this.player_.duration()) {
+ newTime = newTime - 0.1;
+ }
+ } else {
+ var seekableStart = liveTracker.seekableStart();
+ var seekableEnd = liveTracker.liveCurrentTime();
+ newTime = seekableStart + distance * liveTracker.liveWindow(); // Don't let video end while scrubbing.
+
+ if (newTime >= seekableEnd) {
+ newTime = seekableEnd;
+ } // Compensate for precision differences so that currentTime is not less
+ // than seekable start
+
+
+ if (newTime <= seekableStart) {
+ newTime = seekableStart + 0.1;
+ } // On android seekableEnd can be Infinity sometimes,
+ // this will cause newTime to be Infinity, which is
+ // not a valid currentTime.
+
+
+ if (newTime === Infinity) {
+ return;
+ }
+ } // Set new time (tell player to seek to new time)
+
+
+ this.player_.currentTime(newTime);
+ };
+
+ _proto.enable = function enable() {
+ _Slider.prototype.enable.call(this);
+
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.show();
+ };
+
+ _proto.disable = function disable() {
+ _Slider.prototype.disable.call(this);
+
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.hide();
+ }
+ /**
+ * Handle mouse up on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mouseup` event that caused this to run.
+ *
+ * @listens mouseup
+ */
+ ;
+
+ _proto.handleMouseUp = function handleMouseUp(event) {
+ _Slider.prototype.handleMouseUp.call(this, event); // Stop event propagation to prevent double fire in progress-control.js
+
+
+ if (event) {
+ event.stopPropagation();
+ }
+
+ this.player_.scrubbing(false);
+ /**
+ * Trigger timeupdate because we're done seeking and the time has changed.
+ * This is particularly useful for if the player is paused to time the time displays.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+
+ this.player_.trigger({
+ type: 'timeupdate',
+ target: this,
+ manuallyTriggered: true
+ });
+
+ if (this.videoWasPlaying) {
+ silencePromise(this.player_.play());
+ }
+ }
+ /**
+ * Move more quickly fast forward for keyboard-only users
+ */
+ ;
+
+ _proto.stepForward = function stepForward() {
+ this.player_.currentTime(this.player_.currentTime() + STEP_SECONDS);
+ }
+ /**
+ * Move more quickly rewind for keyboard-only users
+ */
+ ;
+
+ _proto.stepBack = function stepBack() {
+ this.player_.currentTime(this.player_.currentTime() - STEP_SECONDS);
+ }
+ /**
+ * Toggles the playback state of the player
+ * This gets called when enter or space is used on the seekbar
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called
+ *
+ */
+ ;
+
+ _proto.handleAction = function handleAction(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ }
+ /**
+ * Called when this SeekBar has focus and a key gets pressed down.
+ * Supports the following keys:
+ *
+ * Space or Enter key fire a click event
+ * Home key moves to start of the timeline
+ * End key moves to end of the timeline
+ * Digit "0" through "9" keys move to 0%, 10% ... 80%, 90% of the timeline
+ * PageDown key moves back a larger step than ArrowDown
+ * PageUp key moves forward a large step
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+ ;
+
+ _proto.handleKeyDown = function handleKeyDown(event) {
+ if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {
+ event.preventDefault();
+ event.stopPropagation();
+ this.handleAction(event);
+ } else if (keycode.isEventKey(event, 'Home')) {
+ event.preventDefault();
+ event.stopPropagation();
+ this.player_.currentTime(0);
+ } else if (keycode.isEventKey(event, 'End')) {
+ event.preventDefault();
+ event.stopPropagation();
+ this.player_.currentTime(this.player_.duration());
+ } else if (/^[0-9]$/.test(keycode(event))) {
+ event.preventDefault();
+ event.stopPropagation();
+ var gotoFraction = (keycode.codes[keycode(event)] - keycode.codes['0']) * 10.0 / 100.0;
+ this.player_.currentTime(this.player_.duration() * gotoFraction);
+ } else if (keycode.isEventKey(event, 'PgDn')) {
+ event.preventDefault();
+ event.stopPropagation();
+ this.player_.currentTime(this.player_.currentTime() - STEP_SECONDS * PAGE_KEY_MULTIPLIER);
+ } else if (keycode.isEventKey(event, 'PgUp')) {
+ event.preventDefault();
+ event.stopPropagation();
+ this.player_.currentTime(this.player_.currentTime() + STEP_SECONDS * PAGE_KEY_MULTIPLIER);
+ } else {
+ // Pass keydown handling up for unsupported keys
+ _Slider.prototype.handleKeyDown.call(this, event);
+ }
+ };
+
+ return SeekBar;
+}(Slider);
+/**
+ * Default options for the `SeekBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+SeekBar.prototype.options_ = {
+ children: ['loadProgressBar', 'playProgressBar'],
+ barName: 'playProgressBar'
+}; // MouseTimeDisplay tooltips should not be added to a player on mobile devices
+
+if (!IS_IOS && !IS_ANDROID) {
+ SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');
+}
+
+Component.registerComponent('SeekBar', SeekBar);
+
+/**
+ * The Progress Control component contains the seek bar, load progress,
+ * and play progress.
+ *
+ * @extends Component
+ */
+
+var ProgressControl =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(ProgressControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ProgressControl(player, options) {
+ var _this;
+
+ _this = _Component.call(this, player, options) || this;
+ _this.handleMouseMove = throttle(bind(_assertThisInitialized(_this), _this.handleMouseMove), UPDATE_REFRESH_INTERVAL);
+ _this.throttledHandleMouseSeek = throttle(bind(_assertThisInitialized(_this), _this.handleMouseSeek), UPDATE_REFRESH_INTERVAL);
+
+ _this.enable();
+
+ return _this;
+ }
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ var _proto = ProgressControl.prototype;
+
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-control vjs-control'
+ });
+ }
+ /**
+ * When the mouse moves over the `ProgressControl`, the pointer position
+ * gets passed down to the `MouseTimeDisplay` component.
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ */
+ ;
+
+ _proto.handleMouseMove = function handleMouseMove(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ var mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');
+ var seekBarEl = seekBar.el();
+ var seekBarRect = getBoundingClientRect(seekBarEl);
+ var seekBarPoint = getPointerPosition(seekBarEl, event).x; // The default skin has a gap on either side of the `SeekBar`. This means
+ // that it's possible to trigger this behavior outside the boundaries of
+ // the `SeekBar`. This ensures we stay within it at all times.
+
+ if (seekBarPoint > 1) {
+ seekBarPoint = 1;
+ } else if (seekBarPoint < 0) {
+ seekBarPoint = 0;
+ }
+
+ if (mouseTimeDisplay) {
+ mouseTimeDisplay.update(seekBarRect, seekBarPoint);
+ }
+ }
+ }
+ /**
+ * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.
+ *
+ * @method ProgressControl#throttledHandleMouseSeek
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ * @listen touchmove
+ */
+
+ /**
+ * Handle `mousemove` or `touchmove` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+ ;
+
+ _proto.handleMouseSeek = function handleMouseSeek(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseMove(event);
+ }
+ }
+ /**
+ * Are controls are currently enabled for this progress control.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+ ;
+
+ _proto.enabled = function enabled() {
+ return this.enabled_;
+ }
+ /**
+ * Disable all controls on the progress control and its children
+ */
+ ;
+
+ _proto.disable = function disable() {
+ this.children().forEach(function (child) {
+ return child.disable && child.disable();
+ });
+
+ if (!this.enabled()) {
+ return;
+ }
+
+ this.off(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.off(this.el_, 'mousemove', this.handleMouseMove);
+ this.handleMouseUp();
+ this.addClass('disabled');
+ this.enabled_ = false;
+ }
+ /**
+ * Enable all controls on the progress control and its children
+ */
+ ;
+
+ _proto.enable = function enable() {
+ this.children().forEach(function (child) {
+ return child.enable && child.enable();
+ });
+
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.on(this.el_, 'mousemove', this.handleMouseMove);
+ this.removeClass('disabled');
+ this.enabled_ = true;
+ }
+ /**
+ * Handle `mousedown` or `touchstart` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+ ;
+
+ _proto.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseDown(event);
+ }
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.on(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ }
+ /**
+ * Handle `mouseup` or `touchend` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+ ;
+
+ _proto.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseUp(event);
+ }
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.off(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ return ProgressControl;
+}(Component);
+/**
+ * Default options for `ProgressControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ProgressControl.prototype.options_ = {
+ children: ['seekBar']
+};
+Component.registerComponent('ProgressControl', ProgressControl);
+
+/**
+ * Toggle Picture-in-Picture mode
+ *
+ * @extends Button
+ */
+
+var PictureInPictureToggle =
+/*#__PURE__*/
+function (_Button) {
+ _inheritsLoose(PictureInPictureToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @listens Player#enterpictureinpicture
+ * @listens Player#leavepictureinpicture
+ */
+ function PictureInPictureToggle(player, options) {
+ var _this;
+
+ _this = _Button.call(this, player, options) || this;
+
+ _this.on(player, ['enterpictureinpicture', 'leavepictureinpicture'], _this.handlePictureInPictureChange); // TODO: Activate button on player loadedmetadata event.
+ // TODO: Deactivate button on player emptied event.
+ // TODO: Deactivate button if disablepictureinpicture attribute is present.
+
+
+ if (!document.pictureInPictureEnabled) {
+ _this.disable();
+ }
+
+ return _this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = PictureInPictureToggle.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-picture-in-picture-control " + _Button.prototype.buildCSSClass.call(this);
+ }
+ /**
+ * Handles enterpictureinpicture and leavepictureinpicture on the player and change control text accordingly.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#enterpictureinpicture} or {@link Player#leavepictureinpicture} event that caused this function to be
+ * called.
+ *
+ * @listens Player#enterpictureinpicture
+ * @listens Player#leavepictureinpicture
+ */
+ ;
+
+ _proto.handlePictureInPictureChange = function handlePictureInPictureChange(event) {
+ if (this.player_.isInPictureInPicture()) {
+ this.controlText('Exit Picture-in-Picture');
+ } else {
+ this.controlText('Picture-in-Picture');
+ }
+ }
+ /**
+ * This gets called when an `PictureInPictureToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {
+ if (!this.player_.isInPictureInPicture()) {
+ this.player_.requestPictureInPicture();
+ } else {
+ this.player_.exitPictureInPicture();
+ }
+ };
+
+ return PictureInPictureToggle;
+}(Button);
+/**
+ * The text that should display over the `PictureInPictureToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+PictureInPictureToggle.prototype.controlText_ = 'Picture-in-Picture';
+Component.registerComponent('PictureInPictureToggle', PictureInPictureToggle);
+
+/**
+ * Toggle fullscreen video
+ *
+ * @extends Button
+ */
+
+var FullscreenToggle =
+/*#__PURE__*/
+function (_Button) {
+ _inheritsLoose(FullscreenToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function FullscreenToggle(player, options) {
+ var _this;
+
+ _this = _Button.call(this, player, options) || this;
+
+ _this.on(player, 'fullscreenchange', _this.handleFullscreenChange);
+
+ if (document[player.fsApi_.fullscreenEnabled] === false) {
+ _this.disable();
+ }
+
+ return _this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = FullscreenToggle.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-fullscreen-control " + _Button.prototype.buildCSSClass.call(this);
+ }
+ /**
+ * Handles fullscreenchange on the player and change control text accordingly.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#fullscreenchange} event that caused this function to be
+ * called.
+ *
+ * @listens Player#fullscreenchange
+ */
+ ;
+
+ _proto.handleFullscreenChange = function handleFullscreenChange(event) {
+ if (this.player_.isFullscreen()) {
+ this.controlText('Non-Fullscreen');
+ } else {
+ this.controlText('Fullscreen');
+ }
+ }
+ /**
+ * This gets called when an `FullscreenToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {
+ if (!this.player_.isFullscreen()) {
+ this.player_.requestFullscreen();
+ } else {
+ this.player_.exitFullscreen();
+ }
+ };
+
+ return FullscreenToggle;
+}(Button);
+/**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+FullscreenToggle.prototype.controlText_ = 'Fullscreen';
+Component.registerComponent('FullscreenToggle', FullscreenToggle);
+
+/**
+ * Check if volume control is supported and if it isn't hide the
+ * `Component` that was passed using the `vjs-hidden` class.
+ *
+ * @param {Component} self
+ * The component that should be hidden if volume is unsupported
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+var checkVolumeSupport = function checkVolumeSupport(self, player) {
+ // hide volume controls when they're not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+};
+
+/**
+ * Shows volume level
+ *
+ * @extends Component
+ */
+
+var VolumeLevel =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(VolumeLevel, _Component);
+
+ function VolumeLevel() {
+ return _Component.apply(this, arguments) || this;
+ }
+
+ var _proto = VolumeLevel.prototype;
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-level',
+ innerHTML: '<span class="vjs-control-text"></span>'
+ });
+ };
+
+ return VolumeLevel;
+}(Component);
+
+Component.registerComponent('VolumeLevel', VolumeLevel);
+
+/**
+ * The bar that contains the volume level and can be clicked on to adjust the level
+ *
+ * @extends Slider
+ */
+
+var VolumeBar =
+/*#__PURE__*/
+function (_Slider) {
+ _inheritsLoose(VolumeBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function VolumeBar(player, options) {
+ var _this;
+
+ _this = _Slider.call(this, player, options) || this;
+
+ _this.on('slideractive', _this.updateLastVolume_);
+
+ _this.on(player, 'volumechange', _this.updateARIAAttributes);
+
+ player.ready(function () {
+ return _this.updateARIAAttributes();
+ });
+ return _this;
+ }
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ var _proto = VolumeBar.prototype;
+
+ _proto.createEl = function createEl() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-bar vjs-slider-bar'
+ }, {
+ 'aria-label': this.localize('Volume Level'),
+ 'aria-live': 'polite'
+ });
+ }
+ /**
+ * Handle mouse down on volume bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+ ;
+
+ _proto.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ }
+ /**
+ * Handle movement events on the {@link VolumeMenuButton}.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @listens mousemove
+ */
+ ;
+
+ _proto.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ this.checkMuted();
+ this.player_.volume(this.calculateDistance(event));
+ }
+ /**
+ * If the player is muted unmute it.
+ */
+ ;
+
+ _proto.checkMuted = function checkMuted() {
+ if (this.player_.muted()) {
+ this.player_.muted(false);
+ }
+ }
+ /**
+ * Get percent of volume level
+ *
+ * @return {number}
+ * Volume level percent as a decimal number.
+ */
+ ;
+
+ _proto.getPercent = function getPercent() {
+ if (this.player_.muted()) {
+ return 0;
+ }
+
+ return this.player_.volume();
+ }
+ /**
+ * Increase volume level for keyboard users
+ */
+ ;
+
+ _proto.stepForward = function stepForward() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() + 0.1);
+ }
+ /**
+ * Decrease volume level for keyboard users
+ */
+ ;
+
+ _proto.stepBack = function stepBack() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() - 0.1);
+ }
+ /**
+ * Update ARIA accessibility attributes
+ *
+ * @param {EventTarget~Event} [event]
+ * The `volumechange` event that caused this function to run.
+ *
+ * @listens Player#volumechange
+ */
+ ;
+
+ _proto.updateARIAAttributes = function updateARIAAttributes(event) {
+ var ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();
+ this.el_.setAttribute('aria-valuenow', ariaValue);
+ this.el_.setAttribute('aria-valuetext', ariaValue + '%');
+ }
+ /**
+ * Returns the current value of the player volume as a percentage
+ *
+ * @private
+ */
+ ;
+
+ _proto.volumeAsPercentage_ = function volumeAsPercentage_() {
+ return Math.round(this.player_.volume() * 100);
+ }
+ /**
+ * When user starts dragging the VolumeBar, store the volume and listen for
+ * the end of the drag. When the drag ends, if the volume was set to zero,
+ * set lastVolume to the stored volume.
+ *
+ * @listens slideractive
+ * @private
+ */
+ ;
+
+ _proto.updateLastVolume_ = function updateLastVolume_() {
+ var _this2 = this;
+
+ var volumeBeforeDrag = this.player_.volume();
+ this.one('sliderinactive', function () {
+ if (_this2.player_.volume() === 0) {
+ _this2.player_.lastVolume_(volumeBeforeDrag);
+ }
+ });
+ };
+
+ return VolumeBar;
+}(Slider);
+/**
+ * Default options for the `VolumeBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+VolumeBar.prototype.options_ = {
+ children: ['volumeLevel'],
+ barName: 'volumeLevel'
+};
+/**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+
+VolumeBar.prototype.playerEvent = 'volumechange';
+Component.registerComponent('VolumeBar', VolumeBar);
+
+/**
+ * The component for controlling the volume level
+ *
+ * @extends Component
+ */
+
+var VolumeControl =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(VolumeControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumeControl(player, options) {
+ var _this;
+
+ if (options === void 0) {
+ options = {};
+ }
+
+ options.vertical = options.vertical || false; // Pass the vertical option down to the VolumeBar if
+ // the VolumeBar is turned on.
+
+ if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {
+ options.volumeBar = options.volumeBar || {};
+ options.volumeBar.vertical = options.vertical;
+ }
+
+ _this = _Component.call(this, player, options) || this; // hide this control if volume support is missing
+
+ checkVolumeSupport(_assertThisInitialized(_this), player);
+ _this.throttledHandleMouseMove = throttle(bind(_assertThisInitialized(_this), _this.handleMouseMove), UPDATE_REFRESH_INTERVAL);
+
+ _this.on('mousedown', _this.handleMouseDown);
+
+ _this.on('touchstart', _this.handleMouseDown); // while the slider is active (the mouse has been pressed down and
+ // is dragging) or in focus we do not want to hide the VolumeBar
+
+
+ _this.on(_this.volumeBar, ['focus', 'slideractive'], function () {
+ _this.volumeBar.addClass('vjs-slider-active');
+
+ _this.addClass('vjs-slider-active');
+
+ _this.trigger('slideractive');
+ });
+
+ _this.on(_this.volumeBar, ['blur', 'sliderinactive'], function () {
+ _this.volumeBar.removeClass('vjs-slider-active');
+
+ _this.removeClass('vjs-slider-active');
+
+ _this.trigger('sliderinactive');
+ });
+
+ return _this;
+ }
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ var _proto = VolumeControl.prototype;
+
+ _proto.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-horizontal';
+
+ if (this.options_.vertical) {
+ orientationClass = 'vjs-volume-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: "vjs-volume-control vjs-control " + orientationClass
+ });
+ }
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+ ;
+
+ _proto.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+ this.on(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.on(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ }
+ /**
+ * Handle `mouseup` or `touchend` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+ ;
+
+ _proto.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+ this.off(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.off(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ }
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+ ;
+
+ _proto.handleMouseMove = function handleMouseMove(event) {
+ this.volumeBar.handleMouseMove(event);
+ };
+
+ return VolumeControl;
+}(Component);
+/**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+VolumeControl.prototype.options_ = {
+ children: ['volumeBar']
+};
+Component.registerComponent('VolumeControl', VolumeControl);
+
+/**
+ * Check if muting volume is supported and if it isn't hide the mute toggle
+ * button.
+ *
+ * @param {Component} self
+ * A reference to the mute toggle button
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+var checkMuteSupport = function checkMuteSupport(self, player) {
+ // hide mute toggle button if it's not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+};
+
+/**
+ * A button component for muting the audio.
+ *
+ * @extends Button
+ */
+
+var MuteToggle =
+/*#__PURE__*/
+function (_Button) {
+ _inheritsLoose(MuteToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MuteToggle(player, options) {
+ var _this;
+
+ _this = _Button.call(this, player, options) || this; // hide this control if volume support is missing
+
+ checkMuteSupport(_assertThisInitialized(_this), player);
+
+ _this.on(player, ['loadstart', 'volumechange'], _this.update);
+
+ return _this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = MuteToggle.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-mute-control " + _Button.prototype.buildCSSClass.call(this);
+ }
+ /**
+ * This gets called when an `MuteToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {
+ var vol = this.player_.volume();
+ var lastVolume = this.player_.lastVolume_();
+
+ if (vol === 0) {
+ var volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;
+ this.player_.volume(volumeToSet);
+ this.player_.muted(false);
+ } else {
+ this.player_.muted(this.player_.muted() ? false : true);
+ }
+ }
+ /**
+ * Update the `MuteToggle` button based on the state of `volume` and `muted`
+ * on the player.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#loadstart} event if this function was called
+ * through an event.
+ *
+ * @listens Player#loadstart
+ * @listens Player#volumechange
+ */
+ ;
+
+ _proto.update = function update(event) {
+ this.updateIcon_();
+ this.updateControlText_();
+ }
+ /**
+ * Update the appearance of the `MuteToggle` icon.
+ *
+ * Possible states (given `level` variable below):
+ * - 0: crossed out
+ * - 1: zero bars of volume
+ * - 2: one bar of volume
+ * - 3: two bars of volume
+ *
+ * @private
+ */
+ ;
+
+ _proto.updateIcon_ = function updateIcon_() {
+ var vol = this.player_.volume();
+ var level = 3; // in iOS when a player is loaded with muted attribute
+ // and volume is changed with a native mute button
+ // we want to make sure muted state is updated
+
+ if (IS_IOS && this.player_.tech_ && this.player_.tech_.el_) {
+ this.player_.muted(this.player_.tech_.el_.muted);
+ }
+
+ if (vol === 0 || this.player_.muted()) {
+ level = 0;
+ } else if (vol < 0.33) {
+ level = 1;
+ } else if (vol < 0.67) {
+ level = 2;
+ } // TODO improve muted icon classes
+
+
+ for (var i = 0; i < 4; i++) {
+ removeClass(this.el_, "vjs-vol-" + i);
+ }
+
+ addClass(this.el_, "vjs-vol-" + level);
+ }
+ /**
+ * If `muted` has changed on the player, update the control text
+ * (`title` attribute on `vjs-mute-control` element and content of
+ * `vjs-control-text` element).
+ *
+ * @private
+ */
+ ;
+
+ _proto.updateControlText_ = function updateControlText_() {
+ var soundOff = this.player_.muted() || this.player_.volume() === 0;
+ var text = soundOff ? 'Unmute' : 'Mute';
+
+ if (this.controlText() !== text) {
+ this.controlText(text);
+ }
+ };
+
+ return MuteToggle;
+}(Button);
+/**
+ * The text that should display over the `MuteToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+MuteToggle.prototype.controlText_ = 'Mute';
+Component.registerComponent('MuteToggle', MuteToggle);
+
+/**
+ * A Component to contain the MuteToggle and VolumeControl so that
+ * they can work together.
+ *
+ * @extends Component
+ */
+
+var VolumePanel =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(VolumePanel, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumePanel(player, options) {
+ var _this;
+
+ if (options === void 0) {
+ options = {};
+ }
+
+ if (typeof options.inline !== 'undefined') {
+ options.inline = options.inline;
+ } else {
+ options.inline = true;
+ } // pass the inline option down to the VolumeControl as vertical if
+ // the VolumeControl is on.
+
+
+ if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {
+ options.volumeControl = options.volumeControl || {};
+ options.volumeControl.vertical = !options.inline;
+ }
+
+ _this = _Component.call(this, player, options) || this;
+
+ _this.on(player, ['loadstart'], _this.volumePanelState_);
+
+ _this.on(_this.muteToggle, 'keyup', _this.handleKeyPress);
+
+ _this.on(_this.volumeControl, 'keyup', _this.handleVolumeControlKeyUp);
+
+ _this.on('keydown', _this.handleKeyPress);
+
+ _this.on('mouseover', _this.handleMouseOver);
+
+ _this.on('mouseout', _this.handleMouseOut); // while the slider is active (the mouse has been pressed down and
+ // is dragging) we do not want to hide the VolumeBar
+
+
+ _this.on(_this.volumeControl, ['slideractive'], _this.sliderActive_);
+
+ _this.on(_this.volumeControl, ['sliderinactive'], _this.sliderInactive_);
+
+ return _this;
+ }
+ /**
+ * Add vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#slideractive
+ * @private
+ */
+
+
+ var _proto = VolumePanel.prototype;
+
+ _proto.sliderActive_ = function sliderActive_() {
+ this.addClass('vjs-slider-active');
+ }
+ /**
+ * Removes vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#sliderinactive
+ * @private
+ */
+ ;
+
+ _proto.sliderInactive_ = function sliderInactive_() {
+ this.removeClass('vjs-slider-active');
+ }
+ /**
+ * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel
+ * depending on MuteToggle and VolumeControl state
+ *
+ * @listens Player#loadstart
+ * @private
+ */
+ ;
+
+ _proto.volumePanelState_ = function volumePanelState_() {
+ // hide volume panel if neither volume control or mute toggle
+ // are displayed
+ if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-hidden');
+ } // if only mute toggle is visible we don't want
+ // volume panel expanding when hovered or active
+
+
+ if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-mute-toggle-only');
+ }
+ }
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ ;
+
+ _proto.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-panel-horizontal';
+
+ if (!this.options_.inline) {
+ orientationClass = 'vjs-volume-panel-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: "vjs-volume-panel vjs-control " + orientationClass
+ });
+ }
+ /**
+ * Dispose of the `volume-panel` and all child components.
+ */
+ ;
+
+ _proto.dispose = function dispose() {
+ this.handleMouseOut();
+
+ _Component.prototype.dispose.call(this);
+ }
+ /**
+ * Handles `keyup` events on the `VolumeControl`, looking for ESC, which closes
+ * the volume panel and sets focus on `MuteToggle`.
+ *
+ * @param {EventTarget~Event} event
+ * The `keyup` event that caused this function to be called.
+ *
+ * @listens keyup
+ */
+ ;
+
+ _proto.handleVolumeControlKeyUp = function handleVolumeControlKeyUp(event) {
+ if (keycode.isEventKey(event, 'Esc')) {
+ this.muteToggle.focus();
+ }
+ }
+ /**
+ * This gets called when a `VolumePanel` gains hover via a `mouseover` event.
+ * Turns on listening for `mouseover` event. When they happen it
+ * calls `this.handleMouseOver`.
+ *
+ * @param {EventTarget~Event} event
+ * The `mouseover` event that caused this function to be called.
+ *
+ * @listens mouseover
+ */
+ ;
+
+ _proto.handleMouseOver = function handleMouseOver(event) {
+ this.addClass('vjs-hover');
+ on(document, 'keyup', bind(this, this.handleKeyPress));
+ }
+ /**
+ * This gets called when a `VolumePanel` gains hover via a `mouseout` event.
+ * Turns on listening for `mouseout` event. When they happen it
+ * calls `this.handleMouseOut`.
+ *
+ * @param {EventTarget~Event} event
+ * The `mouseout` event that caused this function to be called.
+ *
+ * @listens mouseout
+ */
+ ;
+
+ _proto.handleMouseOut = function handleMouseOut(event) {
+ this.removeClass('vjs-hover');
+ off(document, 'keyup', bind(this, this.handleKeyPress));
+ }
+ /**
+ * Handles `keyup` event on the document or `keydown` event on the `VolumePanel`,
+ * looking for ESC, which hides the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * The keypress that triggered this event.
+ *
+ * @listens keydown | keyup
+ */
+ ;
+
+ _proto.handleKeyPress = function handleKeyPress(event) {
+ if (keycode.isEventKey(event, 'Esc')) {
+ this.handleMouseOut();
+ }
+ };
+
+ return VolumePanel;
+}(Component);
+/**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+VolumePanel.prototype.options_ = {
+ children: ['muteToggle', 'volumeControl']
+};
+Component.registerComponent('VolumePanel', VolumePanel);
+
+/**
+ * The Menu component is used to build popup menus, including subtitle and
+ * captions selection menus.
+ *
+ * @extends Component
+ */
+
+var Menu =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(Menu, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * the player that this component should attach to
+ *
+ * @param {Object} [options]
+ * Object of option names and values
+ *
+ */
+ function Menu(player, options) {
+ var _this;
+
+ _this = _Component.call(this, player, options) || this;
+
+ if (options) {
+ _this.menuButton_ = options.menuButton;
+ }
+
+ _this.focusedChild_ = -1;
+
+ _this.on('keydown', _this.handleKeyDown); // All the menu item instances share the same blur handler provided by the menu container.
+
+
+ _this.boundHandleBlur_ = bind(_assertThisInitialized(_this), _this.handleBlur);
+ _this.boundHandleTapClick_ = bind(_assertThisInitialized(_this), _this.handleTapClick);
+ return _this;
+ }
+ /**
+ * Add event listeners to the {@link MenuItem}.
+ *
+ * @param {Object} component
+ * The instance of the `MenuItem` to add listeners to.
+ *
+ */
+
+
+ var _proto = Menu.prototype;
+
+ _proto.addEventListenerForItem = function addEventListenerForItem(component) {
+ if (!(component instanceof Component)) {
+ return;
+ }
+
+ this.on(component, 'blur', this.boundHandleBlur_);
+ this.on(component, ['tap', 'click'], this.boundHandleTapClick_);
+ }
+ /**
+ * Remove event listeners from the {@link MenuItem}.
+ *
+ * @param {Object} component
+ * The instance of the `MenuItem` to remove listeners.
+ *
+ */
+ ;
+
+ _proto.removeEventListenerForItem = function removeEventListenerForItem(component) {
+ if (!(component instanceof Component)) {
+ return;
+ }
+
+ this.off(component, 'blur', this.boundHandleBlur_);
+ this.off(component, ['tap', 'click'], this.boundHandleTapClick_);
+ }
+ /**
+ * This method will be called indirectly when the component has been added
+ * before the component adds to the new menu instance by `addItem`.
+ * In this case, the original menu instance will remove the component
+ * by calling `removeChild`.
+ *
+ * @param {Object} component
+ * The instance of the `MenuItem`
+ */
+ ;
+
+ _proto.removeChild = function removeChild(component) {
+ if (typeof component === 'string') {
+ component = this.getChild(component);
+ }
+
+ this.removeEventListenerForItem(component);
+
+ _Component.prototype.removeChild.call(this, component);
+ }
+ /**
+ * Add a {@link MenuItem} to the menu.
+ *
+ * @param {Object|string} component
+ * The name or instance of the `MenuItem` to add.
+ *
+ */
+ ;
+
+ _proto.addItem = function addItem(component) {
+ var childComponent = this.addChild(component);
+
+ if (childComponent) {
+ this.addEventListenerForItem(childComponent);
+ }
+ }
+ /**
+ * Create the `Menu`s DOM element.
+ *
+ * @return {Element}
+ * the element that was created
+ */
+ ;
+
+ _proto.createEl = function createEl$1() {
+ var contentElType = this.options_.contentElType || 'ul';
+ this.contentEl_ = createEl(contentElType, {
+ className: 'vjs-menu-content'
+ });
+ this.contentEl_.setAttribute('role', 'menu');
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ append: this.contentEl_,
+ className: 'vjs-menu'
+ });
+
+ el.appendChild(this.contentEl_); // Prevent clicks from bubbling up. Needed for Menu Buttons,
+ // where a click on the parent is significant
+
+ on(el, 'click', function (event) {
+ event.preventDefault();
+ event.stopImmediatePropagation();
+ });
+ return el;
+ };
+
+ _proto.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.boundHandleBlur_ = null;
+ this.boundHandleTapClick_ = null;
+
+ _Component.prototype.dispose.call(this);
+ }
+ /**
+ * Called when a `MenuItem` loses focus.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+ ;
+
+ _proto.handleBlur = function handleBlur(event) {
+ var relatedTarget = event.relatedTarget || document.activeElement; // Close menu popup when a user clicks outside the menu
+
+ if (!this.children().some(function (element) {
+ return element.el() === relatedTarget;
+ })) {
+ var btn = this.menuButton_;
+
+ if (btn && btn.buttonPressed_ && relatedTarget !== btn.el().firstChild) {
+ btn.unpressButton();
+ }
+ }
+ }
+ /**
+ * Called when a `MenuItem` gets clicked or tapped.
+ *
+ * @param {EventTarget~Event} event
+ * The `click` or `tap` event that caused this function to be called.
+ *
+ * @listens click,tap
+ */
+ ;
+
+ _proto.handleTapClick = function handleTapClick(event) {
+ // Unpress the associated MenuButton, and move focus back to it
+ if (this.menuButton_) {
+ this.menuButton_.unpressButton();
+ var childComponents = this.children();
+
+ if (!Array.isArray(childComponents)) {
+ return;
+ }
+
+ var foundComponent = childComponents.filter(function (component) {
+ return component.el() === event.target;
+ })[0];
+
+ if (!foundComponent) {
+ return;
+ } // don't focus menu button if item is a caption settings item
+ // because focus will move elsewhere
+
+
+ if (foundComponent.name() !== 'CaptionSettingsMenuItem') {
+ this.menuButton_.focus();
+ }
+ }
+ }
+ /**
+ * Handle a `keydown` event on this menu. This listener is added in the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * A `keydown` event that happened on the menu.
+ *
+ * @listens keydown
+ */
+ ;
+
+ _proto.handleKeyDown = function handleKeyDown(event) {
+ // Left and Down Arrows
+ if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {
+ event.preventDefault();
+ event.stopPropagation();
+ this.stepForward(); // Up and Right Arrows
+ } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {
+ event.preventDefault();
+ event.stopPropagation();
+ this.stepBack();
+ }
+ }
+ /**
+ * Move to next (lower) menu item for keyboard users.
+ */
+ ;
+
+ _proto.stepForward = function stepForward() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ + 1;
+ }
+
+ this.focus(stepChild);
+ }
+ /**
+ * Move to previous (higher) menu item for keyboard users.
+ */
+ ;
+
+ _proto.stepBack = function stepBack() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ - 1;
+ }
+
+ this.focus(stepChild);
+ }
+ /**
+ * Set focus on a {@link MenuItem} in the `Menu`.
+ *
+ * @param {Object|string} [item=0]
+ * Index of child item set focus on.
+ */
+ ;
+
+ _proto.focus = function focus(item) {
+ if (item === void 0) {
+ item = 0;
+ }
+
+ var children = this.children().slice();
+ var haveTitle = children.length && children[0].className && /vjs-menu-title/.test(children[0].className);
+
+ if (haveTitle) {
+ children.shift();
+ }
+
+ if (children.length > 0) {
+ if (item < 0) {
+ item = 0;
+ } else if (item >= children.length) {
+ item = children.length - 1;
+ }
+
+ this.focusedChild_ = item;
+ children[item].el_.focus();
+ }
+ };
+
+ return Menu;
+}(Component);
+
+Component.registerComponent('Menu', Menu);
+
+/**
+ * A `MenuButton` class for any popup {@link Menu}.
+ *
+ * @extends Component
+ */
+
+var MenuButton =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(MenuButton, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function MenuButton(player, options) {
+ var _this;
+
+ if (options === void 0) {
+ options = {};
+ }
+
+ _this = _Component.call(this, player, options) || this;
+ _this.menuButton_ = new Button(player, options);
+
+ _this.menuButton_.controlText(_this.controlText_);
+
+ _this.menuButton_.el_.setAttribute('aria-haspopup', 'true'); // Add buildCSSClass values to the button, not the wrapper
+
+
+ var buttonClass = Button.prototype.buildCSSClass();
+ _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;
+
+ _this.menuButton_.removeClass('vjs-control');
+
+ _this.addChild(_this.menuButton_);
+
+ _this.update();
+
+ _this.enabled_ = true;
+
+ _this.on(_this.menuButton_, 'tap', _this.handleClick);
+
+ _this.on(_this.menuButton_, 'click', _this.handleClick);
+
+ _this.on(_this.menuButton_, 'keydown', _this.handleKeyDown);
+
+ _this.on(_this.menuButton_, 'mouseenter', function () {
+ _this.addClass('vjs-hover');
+
+ _this.menu.show();
+
+ on(document, 'keyup', bind(_assertThisInitialized(_this), _this.handleMenuKeyUp));
+ });
+
+ _this.on('mouseleave', _this.handleMouseLeave);
+
+ _this.on('keydown', _this.handleSubmenuKeyDown);
+
+ return _this;
+ }
+ /**
+ * Update the menu based on the current state of its items.
+ */
+
+
+ var _proto = MenuButton.prototype;
+
+ _proto.update = function update() {
+ var menu = this.createMenu();
+
+ if (this.menu) {
+ this.menu.dispose();
+ this.removeChild(this.menu);
+ }
+
+ this.menu = menu;
+ this.addChild(menu);
+ /**
+ * Track the state of the menu button
+ *
+ * @type {Boolean}
+ * @private
+ */
+
+ this.buttonPressed_ = false;
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+
+ if (this.items && this.items.length <= this.hideThreshold_) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ }
+ /**
+ * Create the menu and add all items to it.
+ *
+ * @return {Menu}
+ * The constructed menu
+ */
+ ;
+
+ _proto.createMenu = function createMenu() {
+ var menu = new Menu(this.player_, {
+ menuButton: this
+ });
+ /**
+ * Hide the menu if the number of items is less than or equal to this threshold. This defaults
+ * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list
+ * it here because every time we run `createMenu` we need to reset the value.
+ *
+ * @protected
+ * @type {Number}
+ */
+
+ this.hideThreshold_ = 0; // Add a title list item to the top
+
+ if (this.options_.title) {
+ var titleEl = createEl('li', {
+ className: 'vjs-menu-title',
+ innerHTML: toTitleCase(this.options_.title),
+ tabIndex: -1
+ });
+ this.hideThreshold_ += 1;
+ var titleComponent = new Component(this.player_, {
+ el: titleEl
+ });
+ menu.addItem(titleComponent);
+ }
+
+ this.items = this.createItems();
+
+ if (this.items) {
+ // Add menu items to the menu
+ for (var i = 0; i < this.items.length; i++) {
+ menu.addItem(this.items[i]);
+ }
+ }
+
+ return menu;
+ }
+ /**
+ * Create the list of menu items. Specific to each subclass.
+ *
+ * @abstract
+ */
+ ;
+
+ _proto.createItems = function createItems() {}
+ /**
+ * Create the `MenuButtons`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+ ;
+
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildWrapperCSSClass()
+ }, {});
+ }
+ /**
+ * Allow sub components to stack CSS class names for the wrapper element
+ *
+ * @return {string}
+ * The constructed wrapper DOM `className`
+ */
+ ;
+
+ _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ var menuButtonClass = 'vjs-menu-button'; // If the inline option is passed, we want to use different styles altogether.
+
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ } // TODO: Fix the CSS so that this isn't necessary
+
+
+ var buttonClass = Button.prototype.buildCSSClass();
+ return "vjs-menu-button " + menuButtonClass + " " + buttonClass + " " + _Component.prototype.buildCSSClass.call(this);
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ ;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ var menuButtonClass = 'vjs-menu-button'; // If the inline option is passed, we want to use different styles altogether.
+
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ return "vjs-menu-button " + menuButtonClass + " " + _Component.prototype.buildCSSClass.call(this);
+ }
+ /**
+ * Get or set the localized control text that will be used for accessibility.
+ *
+ * > NOTE: This will come from the internal `menuButton_` element.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.menuButton_.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+ ;
+
+ _proto.controlText = function controlText(text, el) {
+ if (el === void 0) {
+ el = this.menuButton_.el();
+ }
+
+ return this.menuButton_.controlText(text, el);
+ }
+ /**
+ * Dispose of the `menu-button` and all child components.
+ */
+ ;
+
+ _proto.dispose = function dispose() {
+ this.handleMouseLeave();
+
+ _Component.prototype.dispose.call(this);
+ }
+ /**
+ * Handle a click on a `MenuButton`.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ } else {
+ this.pressButton();
+ }
+ }
+ /**
+ * Handle `mouseleave` for `MenuButton`.
+ *
+ * @param {EventTarget~Event} event
+ * The `mouseleave` event that caused this function to be called.
+ *
+ * @listens mouseleave
+ */
+ ;
+
+ _proto.handleMouseLeave = function handleMouseLeave(event) {
+ this.removeClass('vjs-hover');
+ off(document, 'keyup', bind(this, this.handleMenuKeyUp));
+ }
+ /**
+ * Set the focus to the actual button, not to this element
+ */
+ ;
+
+ _proto.focus = function focus() {
+ this.menuButton_.focus();
+ }
+ /**
+ * Remove the focus from the actual button, not this element
+ */
+ ;
+
+ _proto.blur = function blur() {
+ this.menuButton_.blur();
+ }
+ /**
+ * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See
+ * {@link ClickableComponent#handleKeyDown} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+ ;
+
+ _proto.handleKeyDown = function handleKeyDown(event) {
+ // Escape or Tab unpress the 'button'
+ if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ } // Don't preventDefault for Tab key - we still want to lose focus
+
+
+ if (!keycode.isEventKey(event, 'Tab')) {
+ event.preventDefault(); // Set focus back to the menu button's button
+
+ this.menuButton_.focus();
+ } // Up Arrow or Down Arrow also 'press' the button to open the menu
+
+ } else if (keycode.isEventKey(event, 'Up') || keycode.isEventKey(event, 'Down')) {
+ if (!this.buttonPressed_) {
+ event.preventDefault();
+ this.pressButton();
+ }
+ }
+ }
+ /**
+ * Handle a `keyup` event on a `MenuButton`. The listener for this is added in
+ * the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * Key press event
+ *
+ * @listens keyup
+ */
+ ;
+
+ _proto.handleMenuKeyUp = function handleMenuKeyUp(event) {
+ // Escape hides popup menu
+ if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {
+ this.removeClass('vjs-hover');
+ }
+ }
+ /**
+ * This method name now delegates to `handleSubmenuKeyDown`. This means
+ * anyone calling `handleSubmenuKeyPress` will not see their method calls
+ * stop working.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to be called.
+ */
+ ;
+
+ _proto.handleSubmenuKeyPress = function handleSubmenuKeyPress(event) {
+ this.handleSubmenuKeyDown(event);
+ }
+ /**
+ * Handle a `keydown` event on a sub-menu. The listener for this is added in
+ * the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * Key press event
+ *
+ * @listens keydown
+ */
+ ;
+
+ _proto.handleSubmenuKeyDown = function handleSubmenuKeyDown(event) {
+ // Escape or Tab unpress the 'button'
+ if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ } // Don't preventDefault for Tab key - we still want to lose focus
+
+
+ if (!keycode.isEventKey(event, 'Tab')) {
+ event.preventDefault(); // Set focus back to the menu button's button
+
+ this.menuButton_.focus();
+ }
+ }
+ }
+ /**
+ * Put the current `MenuButton` into a pressed state.
+ */
+ ;
+
+ _proto.pressButton = function pressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = true;
+ this.menu.show();
+ this.menu.lockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'true'); // set the focus into the submenu, except on iOS where it is resulting in
+ // undesired scrolling behavior when the player is in an iframe
+
+ if (IS_IOS && isInFrame()) {
+ // Return early so that the menu isn't focused
+ return;
+ }
+
+ this.menu.focus();
+ }
+ }
+ /**
+ * Take the current `MenuButton` out of a pressed state.
+ */
+ ;
+
+ _proto.unpressButton = function unpressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = false;
+ this.menu.unlockShowing();
+ this.menu.hide();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+ }
+ }
+ /**
+ * Disable the `MenuButton`. Don't allow it to be clicked.
+ */
+ ;
+
+ _proto.disable = function disable() {
+ this.unpressButton();
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+ this.menuButton_.disable();
+ }
+ /**
+ * Enable the `MenuButton`. Allow it to be clicked.
+ */
+ ;
+
+ _proto.enable = function enable() {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+ this.menuButton_.enable();
+ };
+
+ return MenuButton;
+}(Component);
+
+Component.registerComponent('MenuButton', MenuButton);
+
+/**
+ * The base class for buttons that toggle specific track types (e.g. subtitles).
+ *
+ * @extends MenuButton
+ */
+
+var TrackButton =
+/*#__PURE__*/
+function (_MenuButton) {
+ _inheritsLoose(TrackButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TrackButton(player, options) {
+ var _this;
+
+ var tracks = options.tracks;
+ _this = _MenuButton.call(this, player, options) || this;
+
+ if (_this.items.length <= 1) {
+ _this.hide();
+ }
+
+ if (!tracks) {
+ return _assertThisInitialized(_this);
+ }
+
+ var updateHandler = bind(_assertThisInitialized(_this), _this.update);
+ tracks.addEventListener('removetrack', updateHandler);
+ tracks.addEventListener('addtrack', updateHandler);
+
+ _this.player_.on('ready', updateHandler);
+
+ _this.player_.on('dispose', function () {
+ tracks.removeEventListener('removetrack', updateHandler);
+ tracks.removeEventListener('addtrack', updateHandler);
+ });
+
+ return _this;
+ }
+
+ return TrackButton;
+}(MenuButton);
+
+Component.registerComponent('TrackButton', TrackButton);
+
+/**
+ * @file menu-keys.js
+ */
+
+/**
+ * All keys used for operation of a menu (`MenuButton`, `Menu`, and `MenuItem`)
+ * Note that 'Enter' and 'Space' are not included here (otherwise they would
+ * prevent the `MenuButton` and `MenuItem` from being keyboard-clickable)
+ * @typedef MenuKeys
+ * @array
+ */
+var MenuKeys = ['Tab', 'Esc', 'Up', 'Down', 'Right', 'Left'];
+
+/**
+ * The component for a menu item. `<li>`
+ *
+ * @extends ClickableComponent
+ */
+
+var MenuItem =
+/*#__PURE__*/
+function (_ClickableComponent) {
+ _inheritsLoose(MenuItem, _ClickableComponent);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ *
+ */
+ function MenuItem(player, options) {
+ var _this;
+
+ _this = _ClickableComponent.call(this, player, options) || this;
+ _this.selectable = options.selectable;
+ _this.isSelected_ = options.selected || false;
+ _this.multiSelectable = options.multiSelectable;
+
+ _this.selected(_this.isSelected_);
+
+ if (_this.selectable) {
+ if (_this.multiSelectable) {
+ _this.el_.setAttribute('role', 'menuitemcheckbox');
+ } else {
+ _this.el_.setAttribute('role', 'menuitemradio');
+ }
+ } else {
+ _this.el_.setAttribute('role', 'menuitem');
+ }
+
+ return _this;
+ }
+ /**
+ * Create the `MenuItem's DOM element
+ *
+ * @param {string} [type=li]
+ * Element's node type, not actually used, always set to `li`.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element
+ *
+ * @param {Object} [attrs={}]
+ * An object of attributes that should be set on the element
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ var _proto = MenuItem.prototype;
+
+ _proto.createEl = function createEl(type, props, attrs) {
+ // The control is textual, not just an icon
+ this.nonIconControl = true;
+ return _ClickableComponent.prototype.createEl.call(this, 'li', assign({
+ className: 'vjs-menu-item',
+ innerHTML: "<span class=\"vjs-menu-item-text\">" + this.localize(this.options_.label) + "</span>",
+ tabIndex: -1
+ }, props), attrs);
+ }
+ /**
+ * Ignore keys which are used by the menu, but pass any other ones up. See
+ * {@link ClickableComponent#handleKeyDown} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+ ;
+
+ _proto.handleKeyDown = function handleKeyDown(event) {
+ if (!MenuKeys.some(function (key) {
+ return keycode.isEventKey(event, key);
+ })) {
+ // Pass keydown handling up for unused keys
+ _ClickableComponent.prototype.handleKeyDown.call(this, event);
+ }
+ }
+ /**
+ * Any click on a `MenuItem` puts it into the selected state.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {
+ this.selected(true);
+ }
+ /**
+ * Set the state for this menu item as selected or not.
+ *
+ * @param {boolean} selected
+ * if the menu item is selected or not
+ */
+ ;
+
+ _proto.selected = function selected(_selected) {
+ if (this.selectable) {
+ if (_selected) {
+ this.addClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'true'); // aria-checked isn't fully supported by browsers/screen readers,
+ // so indicate selected state to screen reader in the control text.
+
+ this.controlText(', selected');
+ this.isSelected_ = true;
+ } else {
+ this.removeClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'false'); // Indicate un-selected state to screen reader
+
+ this.controlText('');
+ this.isSelected_ = false;
+ }
+ }
+ };
+
+ return MenuItem;
+}(ClickableComponent);
+
+Component.registerComponent('MenuItem', MenuItem);
+
+/**
+ * The specific menu item type for selecting a language within a text track kind
+ *
+ * @extends MenuItem
+ */
+
+var TextTrackMenuItem =
+/*#__PURE__*/
+function (_MenuItem) {
+ _inheritsLoose(TextTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackMenuItem(player, options) {
+ var _this;
+
+ var track = options.track;
+ var tracks = player.textTracks(); // Modify options for parent MenuItem class's init.
+
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.mode === 'showing';
+ _this = _MenuItem.call(this, player, options) || this;
+ _this.track = track; // Determine the relevant kind(s) of tracks for this component and filter
+ // out empty kinds.
+
+ _this.kinds = (options.kinds || [options.kind || _this.track.kind]).filter(Boolean);
+
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_assertThisInitialized(_this), args);
+ };
+
+ var selectedLanguageChangeHandler = function selectedLanguageChangeHandler() {
+ for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ _this.handleSelectedLanguageChange.apply(_assertThisInitialized(_this), args);
+ };
+
+ player.on(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.addEventListener('change', changeHandler);
+ tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+
+ _this.on('dispose', function () {
+ player.off(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.removeEventListener('change', changeHandler);
+ tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ }); // iOS7 doesn't dispatch change events to TextTrackLists when an
+ // associated track's mode changes. Without something like
+ // Object.observe() (also not present on iOS7), it's not
+ // possible to detect changes to the mode attribute and polyfill
+ // the change event. As a poor substitute, we manually dispatch
+ // change events whenever the controls modify the mode.
+
+
+ if (tracks.onchange === undefined) {
+ var event;
+
+ _this.on(['tap', 'click'], function () {
+ if (typeof window$1.Event !== 'object') {
+ // Android 2.3 throws an Illegal Constructor error for window.Event
+ try {
+ event = new window$1.Event('change');
+ } catch (err) {// continue regardless of error
+ }
+ }
+
+ if (!event) {
+ event = document.createEvent('Event');
+ event.initEvent('change', true, true);
+ }
+
+ tracks.dispatchEvent(event);
+ });
+ } // set the default state based on current tracks
+
+
+ _this.handleTracksChange();
+
+ return _this;
+ }
+ /**
+ * This gets called when an `TextTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ var _proto = TextTrackMenuItem.prototype;
+
+ _proto.handleClick = function handleClick(event) {
+ var referenceTrack = this.track;
+ var tracks = this.player_.textTracks();
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ if (!tracks) {
+ return;
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i]; // If the track from the text tracks list is not of the right kind,
+ // skip it. We do not want to affect tracks of incompatible kind(s).
+
+ if (this.kinds.indexOf(track.kind) === -1) {
+ continue;
+ } // If this text track is the component's track and it is not showing,
+ // set it to showing.
+
+
+ if (track === referenceTrack) {
+ if (track.mode !== 'showing') {
+ track.mode = 'showing';
+ } // If this text track is not the component's track and it is not
+ // disabled, set it to disabled.
+
+ } else if (track.mode !== 'disabled') {
+ track.mode = 'disabled';
+ }
+ }
+ }
+ /**
+ * Handle text track list change
+ *
+ * @param {EventTarget~Event} event
+ * The `change` event that caused this function to be called.
+ *
+ * @listens TextTrackList#change
+ */
+ ;
+
+ _proto.handleTracksChange = function handleTracksChange(event) {
+ var shouldBeSelected = this.track.mode === 'showing'; // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ _proto.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ if (this.track.mode === 'showing') {
+ var selectedLanguage = this.player_.cache_.selectedLanguage; // Don't replace the kind of track across the same language
+
+ if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {
+ return;
+ }
+
+ this.player_.cache_.selectedLanguage = {
+ enabled: true,
+ language: this.track.language,
+ kind: this.track.kind
+ };
+ }
+ };
+
+ _proto.dispose = function dispose() {
+ // remove reference to track object on dispose
+ this.track = null;
+
+ _MenuItem.prototype.dispose.call(this);
+ };
+
+ return TextTrackMenuItem;
+}(MenuItem);
+
+Component.registerComponent('TextTrackMenuItem', TextTrackMenuItem);
+
+/**
+ * A special menu item for turning of a specific type of text track
+ *
+ * @extends TextTrackMenuItem
+ */
+
+var OffTextTrackMenuItem =
+/*#__PURE__*/
+function (_TextTrackMenuItem) {
+ _inheritsLoose(OffTextTrackMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function OffTextTrackMenuItem(player, options) {
+ // Create pseudo track info
+ // Requires options['kind']
+ options.track = {
+ player: player,
+ // it is no longer necessary to store `kind` or `kinds` on the track itself
+ // since they are now stored in the `kinds` property of all instances of
+ // TextTrackMenuItem, but this will remain for backwards compatibility
+ kind: options.kind,
+ kinds: options.kinds,
+ "default": false,
+ mode: 'disabled'
+ };
+
+ if (!options.kinds) {
+ options.kinds = [options.kind];
+ }
+
+ if (options.label) {
+ options.track.label = options.label;
+ } else {
+ options.track.label = options.kinds.join(' and ') + ' off';
+ } // MenuItem is selectable
+
+
+ options.selectable = true; // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+
+ options.multiSelectable = false;
+ return _TextTrackMenuItem.call(this, player, options) || this;
+ }
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ */
+
+
+ var _proto = OffTextTrackMenuItem.prototype;
+
+ _proto.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var shouldBeSelected = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {
+ shouldBeSelected = false;
+ break;
+ }
+ } // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+
+
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ _proto.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ var tracks = this.player().textTracks();
+ var allHidden = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {
+ allHidden = false;
+ break;
+ }
+ }
+
+ if (allHidden) {
+ this.player_.cache_.selectedLanguage = {
+ enabled: false
+ };
+ }
+ };
+
+ return OffTextTrackMenuItem;
+}(TextTrackMenuItem);
+
+Component.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);
+
+/**
+ * The base class for buttons that toggle specific text track types (e.g. subtitles)
+ *
+ * @extends MenuButton
+ */
+
+var TextTrackButton =
+/*#__PURE__*/
+function (_TrackButton) {
+ _inheritsLoose(TextTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function TextTrackButton(player, options) {
+ if (options === void 0) {
+ options = {};
+ }
+
+ options.tracks = player.textTracks();
+ return _TrackButton.call(this, player, options) || this;
+ }
+ /**
+ * Create a menu item for each text track
+ *
+ * @param {TextTrackMenuItem[]} [items=[]]
+ * Existing array of items to use during creation
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items that were created
+ */
+
+
+ var _proto = TextTrackButton.prototype;
+
+ _proto.createItems = function createItems(items, TrackMenuItem) {
+ if (items === void 0) {
+ items = [];
+ }
+
+ if (TrackMenuItem === void 0) {
+ TrackMenuItem = TextTrackMenuItem;
+ }
+
+ // Label is an override for the [track] off label
+ // USed to localise captions/subtitles
+ var label;
+
+ if (this.label_) {
+ label = this.label_ + " off";
+ } // Add an OFF menu item to turn all tracks off
+
+
+ items.push(new OffTextTrackMenuItem(this.player_, {
+ kinds: this.kinds_,
+ kind: this.kind_,
+ label: label
+ }));
+ this.hideThreshold_ += 1;
+ var tracks = this.player_.textTracks();
+
+ if (!Array.isArray(this.kinds_)) {
+ this.kinds_ = [this.kind_];
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i]; // only add tracks that are of an appropriate kind and have a label
+
+ if (this.kinds_.indexOf(track.kind) > -1) {
+ var item = new TrackMenuItem(this.player_, {
+ track: track,
+ kinds: this.kinds_,
+ kind: this.kind_,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ });
+ item.addClass("vjs-" + track.kind + "-menu-item");
+ items.push(item);
+ }
+ }
+
+ return items;
+ };
+
+ return TextTrackButton;
+}(TrackButton);
+
+Component.registerComponent('TextTrackButton', TextTrackButton);
+
+/**
+ * The chapter track menu item
+ *
+ * @extends MenuItem
+ */
+
+var ChaptersTrackMenuItem =
+/*#__PURE__*/
+function (_MenuItem) {
+ _inheritsLoose(ChaptersTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ChaptersTrackMenuItem(player, options) {
+ var _this;
+
+ var track = options.track;
+ var cue = options.cue;
+ var currentTime = player.currentTime(); // Modify options for parent MenuItem class's init.
+
+ options.selectable = true;
+ options.multiSelectable = false;
+ options.label = cue.text;
+ options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;
+ _this = _MenuItem.call(this, player, options) || this;
+ _this.track = track;
+ _this.cue = cue;
+ track.addEventListener('cuechange', bind(_assertThisInitialized(_this), _this.update));
+ return _this;
+ }
+ /**
+ * This gets called when an `ChaptersTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ var _proto = ChaptersTrackMenuItem.prototype;
+
+ _proto.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+
+ this.player_.currentTime(this.cue.startTime);
+ this.update(this.cue.startTime);
+ }
+ /**
+ * Update chapter menu item
+ *
+ * @param {EventTarget~Event} [event]
+ * The `cuechange` event that caused this function to run.
+ *
+ * @listens TextTrack#cuechange
+ */
+ ;
+
+ _proto.update = function update(event) {
+ var cue = this.cue;
+ var currentTime = this.player_.currentTime(); // vjs.log(currentTime, cue.startTime);
+
+ this.selected(cue.startTime <= currentTime && currentTime < cue.endTime);
+ };
+
+ return ChaptersTrackMenuItem;
+}(MenuItem);
+
+Component.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);
+
+/**
+ * The button component for toggling and selecting chapters
+ * Chapters act much differently than other text tracks
+ * Cues are navigation vs. other tracks of alternative languages
+ *
+ * @extends TextTrackButton
+ */
+
+var ChaptersButton =
+/*#__PURE__*/
+function (_TextTrackButton) {
+ _inheritsLoose(ChaptersButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this function is ready.
+ */
+ function ChaptersButton(player, options, ready) {
+ return _TextTrackButton.call(this, player, options, ready) || this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = ChaptersButton.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-chapters-button " + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return "vjs-chapters-button " + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ }
+ /**
+ * Update the menu based on the current state of its items.
+ *
+ * @param {EventTarget~Event} [event]
+ * An event that triggered this function to run.
+ *
+ * @listens TextTrackList#addtrack
+ * @listens TextTrackList#removetrack
+ * @listens TextTrackList#change
+ */
+ ;
+
+ _proto.update = function update(event) {
+ if (!this.track_ || event && (event.type === 'addtrack' || event.type === 'removetrack')) {
+ this.setTrack(this.findChaptersTrack());
+ }
+
+ _TextTrackButton.prototype.update.call(this);
+ }
+ /**
+ * Set the currently selected track for the chapters button.
+ *
+ * @param {TextTrack} track
+ * The new track to select. Nothing will change if this is the currently selected
+ * track.
+ */
+ ;
+
+ _proto.setTrack = function setTrack(track) {
+ if (this.track_ === track) {
+ return;
+ }
+
+ if (!this.updateHandler_) {
+ this.updateHandler_ = this.update.bind(this);
+ } // here this.track_ refers to the old track instance
+
+
+ if (this.track_) {
+ var remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (remoteTextTrackEl) {
+ remoteTextTrackEl.removeEventListener('load', this.updateHandler_);
+ }
+
+ this.track_ = null;
+ }
+
+ this.track_ = track; // here this.track_ refers to the new track instance
+
+ if (this.track_) {
+ this.track_.mode = 'hidden';
+
+ var _remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (_remoteTextTrackEl) {
+ _remoteTextTrackEl.addEventListener('load', this.updateHandler_);
+ }
+ }
+ }
+ /**
+ * Find the track object that is currently in use by this ChaptersButton
+ *
+ * @return {TextTrack|undefined}
+ * The current track or undefined if none was found.
+ */
+ ;
+
+ _proto.findChaptersTrack = function findChaptersTrack() {
+ var tracks = this.player_.textTracks() || [];
+
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ // We will always choose the last track as our chaptersTrack
+ var track = tracks[i];
+
+ if (track.kind === this.kind_) {
+ return track;
+ }
+ }
+ }
+ /**
+ * Get the caption for the ChaptersButton based on the track label. This will also
+ * use the current tracks localized kind as a fallback if a label does not exist.
+ *
+ * @return {string}
+ * The tracks current label or the localized track kind.
+ */
+ ;
+
+ _proto.getMenuCaption = function getMenuCaption() {
+ if (this.track_ && this.track_.label) {
+ return this.track_.label;
+ }
+
+ return this.localize(toTitleCase(this.kind_));
+ }
+ /**
+ * Create menu from chapter track
+ *
+ * @return {Menu}
+ * New menu for the chapter buttons
+ */
+ ;
+
+ _proto.createMenu = function createMenu() {
+ this.options_.title = this.getMenuCaption();
+ return _TextTrackButton.prototype.createMenu.call(this);
+ }
+ /**
+ * Create a menu item for each text track
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items
+ */
+ ;
+
+ _proto.createItems = function createItems() {
+ var items = [];
+
+ if (!this.track_) {
+ return items;
+ }
+
+ var cues = this.track_.cues;
+
+ if (!cues) {
+ return items;
+ }
+
+ for (var i = 0, l = cues.length; i < l; i++) {
+ var cue = cues[i];
+ var mi = new ChaptersTrackMenuItem(this.player_, {
+ track: this.track_,
+ cue: cue
+ });
+ items.push(mi);
+ }
+
+ return items;
+ };
+
+ return ChaptersButton;
+}(TextTrackButton);
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ChaptersButton.prototype.kind_ = 'chapters';
+/**
+ * The text that should display over the `ChaptersButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+ChaptersButton.prototype.controlText_ = 'Chapters';
+Component.registerComponent('ChaptersButton', ChaptersButton);
+
+/**
+ * The button component for toggling and selecting descriptions
+ *
+ * @extends TextTrackButton
+ */
+
+var DescriptionsButton =
+/*#__PURE__*/
+function (_TextTrackButton) {
+ _inheritsLoose(DescriptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function DescriptionsButton(player, options, ready) {
+ var _this;
+
+ _this = _TextTrackButton.call(this, player, options, ready) || this;
+ var tracks = player.textTracks();
+ var changeHandler = bind(_assertThisInitialized(_this), _this.handleTracksChange);
+ tracks.addEventListener('change', changeHandler);
+
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+
+ return _this;
+ }
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ var _proto = DescriptionsButton.prototype;
+
+ _proto.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var disabled = false; // Check whether a track of a different kind is showing
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (track.kind !== this.kind_ && track.mode === 'showing') {
+ disabled = true;
+ break;
+ }
+ } // If another track is showing, disable this menu button
+
+
+ if (disabled) {
+ this.disable();
+ } else {
+ this.enable();
+ }
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ ;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-descriptions-button " + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return "vjs-descriptions-button " + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return DescriptionsButton;
+}(TextTrackButton);
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+DescriptionsButton.prototype.kind_ = 'descriptions';
+/**
+ * The text that should display over the `DescriptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+DescriptionsButton.prototype.controlText_ = 'Descriptions';
+Component.registerComponent('DescriptionsButton', DescriptionsButton);
+
+/**
+ * The button component for toggling and selecting subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+var SubtitlesButton =
+/*#__PURE__*/
+function (_TextTrackButton) {
+ _inheritsLoose(SubtitlesButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function SubtitlesButton(player, options, ready) {
+ return _TextTrackButton.call(this, player, options, ready) || this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = SubtitlesButton.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-subtitles-button " + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return "vjs-subtitles-button " + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return SubtitlesButton;
+}(TextTrackButton);
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+SubtitlesButton.prototype.kind_ = 'subtitles';
+/**
+ * The text that should display over the `SubtitlesButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+SubtitlesButton.prototype.controlText_ = 'Subtitles';
+Component.registerComponent('SubtitlesButton', SubtitlesButton);
+
+/**
+ * The menu item for caption track settings menu
+ *
+ * @extends TextTrackMenuItem
+ */
+
+var CaptionSettingsMenuItem =
+/*#__PURE__*/
+function (_TextTrackMenuItem) {
+ _inheritsLoose(CaptionSettingsMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CaptionSettingsMenuItem(player, options) {
+ var _this;
+
+ options.track = {
+ player: player,
+ kind: options.kind,
+ label: options.kind + ' settings',
+ selectable: false,
+ "default": false,
+ mode: 'disabled'
+ }; // CaptionSettingsMenuItem has no concept of 'selected'
+
+ options.selectable = false;
+ options.name = 'CaptionSettingsMenuItem';
+ _this = _TextTrackMenuItem.call(this, player, options) || this;
+
+ _this.addClass('vjs-texttrack-settings');
+
+ _this.controlText(', opens ' + options.kind + ' settings dialog');
+
+ return _this;
+ }
+ /**
+ * This gets called when an `CaptionSettingsMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ var _proto = CaptionSettingsMenuItem.prototype;
+
+ _proto.handleClick = function handleClick(event) {
+ this.player().getChild('textTrackSettings').open();
+ };
+
+ return CaptionSettingsMenuItem;
+}(TextTrackMenuItem);
+
+Component.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);
+
+/**
+ * The button component for toggling and selecting captions
+ *
+ * @extends TextTrackButton
+ */
+
+var CaptionsButton =
+/*#__PURE__*/
+function (_TextTrackButton) {
+ _inheritsLoose(CaptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function CaptionsButton(player, options, ready) {
+ return _TextTrackButton.call(this, player, options, ready) || this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = CaptionsButton.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-captions-button " + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return "vjs-captions-button " + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ }
+ /**
+ * Create caption menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+ ;
+
+ _proto.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, {
+ kind: this.kind_
+ }));
+ this.hideThreshold_ += 1;
+ }
+
+ return _TextTrackButton.prototype.createItems.call(this, items);
+ };
+
+ return CaptionsButton;
+}(TextTrackButton);
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+CaptionsButton.prototype.kind_ = 'captions';
+/**
+ * The text that should display over the `CaptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+CaptionsButton.prototype.controlText_ = 'Captions';
+Component.registerComponent('CaptionsButton', CaptionsButton);
+
+/**
+ * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles
+ * in the SubsCapsMenu.
+ *
+ * @extends TextTrackMenuItem
+ */
+
+var SubsCapsMenuItem =
+/*#__PURE__*/
+function (_TextTrackMenuItem) {
+ _inheritsLoose(SubsCapsMenuItem, _TextTrackMenuItem);
+
+ function SubsCapsMenuItem() {
+ return _TextTrackMenuItem.apply(this, arguments) || this;
+ }
+
+ var _proto = SubsCapsMenuItem.prototype;
+
+ _proto.createEl = function createEl(type, props, attrs) {
+ var innerHTML = "<span class=\"vjs-menu-item-text\">" + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'captions') {
+ innerHTML += "\n <span aria-hidden=\"true\" class=\"vjs-icon-placeholder\"></span>\n <span class=\"vjs-control-text\"> " + this.localize('Captions') + "</span>\n ";
+ }
+
+ innerHTML += '</span>';
+
+ var el = _TextTrackMenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ return SubsCapsMenuItem;
+}(TextTrackMenuItem);
+
+Component.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);
+
+/**
+ * The button component for toggling and selecting captions and/or subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+var SubsCapsButton =
+/*#__PURE__*/
+function (_TextTrackButton) {
+ _inheritsLoose(SubsCapsButton, _TextTrackButton);
+
+ function SubsCapsButton(player, options) {
+ var _this;
+
+ if (options === void 0) {
+ options = {};
+ }
+
+ _this = _TextTrackButton.call(this, player, options) || this; // Although North America uses "captions" in most cases for
+ // "captions and subtitles" other locales use "subtitles"
+
+ _this.label_ = 'subtitles';
+
+ if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(_this.player_.language_) > -1) {
+ _this.label_ = 'captions';
+ }
+
+ _this.menuButton_.controlText(toTitleCase(_this.label_));
+
+ return _this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = SubsCapsButton.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-subs-caps-button " + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return "vjs-subs-caps-button " + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ }
+ /**
+ * Create caption/subtitles menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+ ;
+
+ _proto.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, {
+ kind: this.label_
+ }));
+ this.hideThreshold_ += 1;
+ }
+
+ items = _TextTrackButton.prototype.createItems.call(this, items, SubsCapsMenuItem);
+ return items;
+ };
+
+ return SubsCapsButton;
+}(TextTrackButton);
+/**
+ * `kind`s of TextTrack to look for to associate it with this menu.
+ *
+ * @type {array}
+ * @private
+ */
+
+
+SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];
+/**
+ * The text that should display over the `SubsCapsButton`s controls.
+ *
+ *
+ * @type {string}
+ * @private
+ */
+
+SubsCapsButton.prototype.controlText_ = 'Subtitles';
+Component.registerComponent('SubsCapsButton', SubsCapsButton);
+
+/**
+ * An {@link AudioTrack} {@link MenuItem}
+ *
+ * @extends MenuItem
+ */
+
+var AudioTrackMenuItem =
+/*#__PURE__*/
+function (_MenuItem) {
+ _inheritsLoose(AudioTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function AudioTrackMenuItem(player, options) {
+ var _this;
+
+ var track = options.track;
+ var tracks = player.audioTracks(); // Modify options for parent MenuItem class's init.
+
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.enabled;
+ _this = _MenuItem.call(this, player, options) || this;
+ _this.track = track;
+
+ _this.addClass("vjs-" + track.kind + "-menu-item");
+
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_assertThisInitialized(_this), args);
+ };
+
+ tracks.addEventListener('change', changeHandler);
+
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+
+ return _this;
+ }
+
+ var _proto = AudioTrackMenuItem.prototype;
+
+ _proto.createEl = function createEl(type, props, attrs) {
+ var innerHTML = "<span class=\"vjs-menu-item-text\">" + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'main-desc') {
+ innerHTML += "\n <span aria-hidden=\"true\" class=\"vjs-icon-placeholder\"></span>\n <span class=\"vjs-control-text\"> " + this.localize('Descriptions') + "</span>\n ";
+ }
+
+ innerHTML += '</span>';
+
+ var el = _MenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ }
+ /**
+ * This gets called when an `AudioTrackMenuItem is "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {
+ var tracks = this.player_.audioTracks();
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+ track.enabled = track === this.track;
+ }
+ }
+ /**
+ * Handle any {@link AudioTrack} change.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link AudioTrackList#change} event that caused this to run.
+ *
+ * @listens AudioTrackList#change
+ */
+ ;
+
+ _proto.handleTracksChange = function handleTracksChange(event) {
+ this.selected(this.track.enabled);
+ };
+
+ return AudioTrackMenuItem;
+}(MenuItem);
+
+Component.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);
+
+/**
+ * The base class for buttons that toggle specific {@link AudioTrack} types.
+ *
+ * @extends TrackButton
+ */
+
+var AudioTrackButton =
+/*#__PURE__*/
+function (_TrackButton) {
+ _inheritsLoose(AudioTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function AudioTrackButton(player, options) {
+ if (options === void 0) {
+ options = {};
+ }
+
+ options.tracks = player.audioTracks();
+ return _TrackButton.call(this, player, options) || this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ var _proto = AudioTrackButton.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-audio-button " + _TrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return "vjs-audio-button " + _TrackButton.prototype.buildWrapperCSSClass.call(this);
+ }
+ /**
+ * Create a menu item for each audio track
+ *
+ * @param {AudioTrackMenuItem[]} [items=[]]
+ * An array of existing menu items to use.
+ *
+ * @return {AudioTrackMenuItem[]}
+ * An array of menu items
+ */
+ ;
+
+ _proto.createItems = function createItems(items) {
+ if (items === void 0) {
+ items = [];
+ }
+
+ // if there's only one audio track, there no point in showing it
+ this.hideThreshold_ = 1;
+ var tracks = this.player_.audioTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+ items.push(new AudioTrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ }));
+ }
+
+ return items;
+ };
+
+ return AudioTrackButton;
+}(TrackButton);
+/**
+ * The text that should display over the `AudioTrackButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+AudioTrackButton.prototype.controlText_ = 'Audio Track';
+Component.registerComponent('AudioTrackButton', AudioTrackButton);
+
+/**
+ * The specific menu item type for selecting a playback rate.
+ *
+ * @extends MenuItem
+ */
+
+var PlaybackRateMenuItem =
+/*#__PURE__*/
+function (_MenuItem) {
+ _inheritsLoose(PlaybackRateMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuItem(player, options) {
+ var _this;
+
+ var label = options.rate;
+ var rate = parseFloat(label, 10); // Modify options for parent MenuItem class's init.
+
+ options.label = label;
+ options.selected = rate === 1;
+ options.selectable = true;
+ options.multiSelectable = false;
+ _this = _MenuItem.call(this, player, options) || this;
+ _this.label = label;
+ _this.rate = rate;
+
+ _this.on(player, 'ratechange', _this.update);
+
+ return _this;
+ }
+ /**
+ * This gets called when an `PlaybackRateMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ var _proto = PlaybackRateMenuItem.prototype;
+
+ _proto.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+
+ this.player().playbackRate(this.rate);
+ }
+ /**
+ * Update the PlaybackRateMenuItem when the playbackrate changes.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ratechange` event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+ ;
+
+ _proto.update = function update(event) {
+ this.selected(this.player().playbackRate() === this.rate);
+ };
+
+ return PlaybackRateMenuItem;
+}(MenuItem);
+/**
+ * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+PlaybackRateMenuItem.prototype.contentElType = 'button';
+Component.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);
+
+/**
+ * The component for controlling the playback rate.
+ *
+ * @extends MenuButton
+ */
+
+var PlaybackRateMenuButton =
+/*#__PURE__*/
+function (_MenuButton) {
+ _inheritsLoose(PlaybackRateMenuButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuButton(player, options) {
+ var _this;
+
+ _this = _MenuButton.call(this, player, options) || this;
+
+ _this.updateVisibility();
+
+ _this.updateLabel();
+
+ _this.on(player, 'loadstart', _this.updateVisibility);
+
+ _this.on(player, 'ratechange', _this.updateLabel);
+
+ return _this;
+ }
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ var _proto = PlaybackRateMenuButton.prototype;
+
+ _proto.createEl = function createEl$1() {
+ var el = _MenuButton.prototype.createEl.call(this);
+
+ this.labelEl_ = createEl('div', {
+ className: 'vjs-playback-rate-value',
+ innerHTML: '1x'
+ });
+ el.appendChild(this.labelEl_);
+ return el;
+ };
+
+ _proto.dispose = function dispose() {
+ this.labelEl_ = null;
+
+ _MenuButton.prototype.dispose.call(this);
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ ;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-playback-rate " + _MenuButton.prototype.buildCSSClass.call(this);
+ };
+
+ _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return "vjs-playback-rate " + _MenuButton.prototype.buildWrapperCSSClass.call(this);
+ }
+ /**
+ * Create the playback rate menu
+ *
+ * @return {Menu}
+ * Menu object populated with {@link PlaybackRateMenuItem}s
+ */
+ ;
+
+ _proto.createMenu = function createMenu() {
+ var menu = new Menu(this.player());
+ var rates = this.playbackRates();
+
+ if (rates) {
+ for (var i = rates.length - 1; i >= 0; i--) {
+ menu.addChild(new PlaybackRateMenuItem(this.player(), {
+ rate: rates[i] + 'x'
+ }));
+ }
+ }
+
+ return menu;
+ }
+ /**
+ * Updates ARIA accessibility attributes
+ */
+ ;
+
+ _proto.updateARIAAttributes = function updateARIAAttributes() {
+ // Current playback rate
+ this.el().setAttribute('aria-valuenow', this.player().playbackRate());
+ }
+ /**
+ * This gets called when an `PlaybackRateMenuButton` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+ ;
+
+ _proto.handleClick = function handleClick(event) {
+ // select next rate option
+ var currentRate = this.player().playbackRate();
+ var rates = this.playbackRates(); // this will select first one if the last one currently selected
+
+ var newRate = rates[0];
+
+ for (var i = 0; i < rates.length; i++) {
+ if (rates[i] > currentRate) {
+ newRate = rates[i];
+ break;
+ }
+ }
+
+ this.player().playbackRate(newRate);
+ }
+ /**
+ * Get possible playback rates
+ *
+ * @return {Array}
+ * All possible playback rates
+ */
+ ;
+
+ _proto.playbackRates = function playbackRates() {
+ return this.options_.playbackRates || this.options_.playerOptions && this.options_.playerOptions.playbackRates;
+ }
+ /**
+ * Get whether playback rates is supported by the tech
+ * and an array of playback rates exists
+ *
+ * @return {boolean}
+ * Whether changing playback rate is supported
+ */
+ ;
+
+ _proto.playbackRateSupported = function playbackRateSupported() {
+ return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;
+ }
+ /**
+ * Hide playback rate controls when they're no playback rate options to select
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#loadstart
+ */
+ ;
+
+ _proto.updateVisibility = function updateVisibility(event) {
+ if (this.playbackRateSupported()) {
+ this.removeClass('vjs-hidden');
+ } else {
+ this.addClass('vjs-hidden');
+ }
+ }
+ /**
+ * Update button label when rate changed
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+ ;
+
+ _proto.updateLabel = function updateLabel(event) {
+ if (this.playbackRateSupported()) {
+ this.labelEl_.innerHTML = this.player().playbackRate() + 'x';
+ }
+ };
+
+ return PlaybackRateMenuButton;
+}(MenuButton);
+/**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';
+Component.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);
+
+/**
+ * Just an empty spacer element that can be used as an append point for plugins, etc.
+ * Also can be used to create space between elements when necessary.
+ *
+ * @extends Component
+ */
+
+var Spacer =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(Spacer, _Component);
+
+ function Spacer() {
+ return _Component.apply(this, arguments) || this;
+ }
+
+ var _proto = Spacer.prototype;
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-spacer " + _Component.prototype.buildCSSClass.call(this);
+ }
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ ;
+
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass()
+ });
+ };
+
+ return Spacer;
+}(Component);
+
+Component.registerComponent('Spacer', Spacer);
+
+/**
+ * Spacer specifically meant to be used as an insertion point for new plugins, etc.
+ *
+ * @extends Spacer
+ */
+
+var CustomControlSpacer =
+/*#__PURE__*/
+function (_Spacer) {
+ _inheritsLoose(CustomControlSpacer, _Spacer);
+
+ function CustomControlSpacer() {
+ return _Spacer.apply(this, arguments) || this;
+ }
+
+ var _proto = CustomControlSpacer.prototype;
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-custom-control-spacer " + _Spacer.prototype.buildCSSClass.call(this);
+ }
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ ;
+
+ _proto.createEl = function createEl() {
+ var el = _Spacer.prototype.createEl.call(this, {
+ className: this.buildCSSClass()
+ }); // No-flex/table-cell mode requires there be some content
+ // in the cell to fill the remaining space of the table.
+
+
+ el.innerHTML = "\xA0";
+ return el;
+ };
+
+ return CustomControlSpacer;
+}(Spacer);
+
+Component.registerComponent('CustomControlSpacer', CustomControlSpacer);
+
+/**
+ * Container of main controls.
+ *
+ * @extends Component
+ */
+
+var ControlBar =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(ControlBar, _Component);
+
+ function ControlBar() {
+ return _Component.apply(this, arguments) || this;
+ }
+
+ var _proto = ControlBar.prototype;
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-control-bar',
+ dir: 'ltr'
+ });
+ };
+
+ return ControlBar;
+}(Component);
+/**
+ * Default options for `ControlBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ControlBar.prototype.options_ = {
+ children: ['playToggle', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'seekToLive', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']
+};
+
+if ('exitPictureInPicture' in document) {
+ ControlBar.prototype.options_.children.splice(ControlBar.prototype.options_.children.length - 1, 0, 'pictureInPictureToggle');
+}
+
+Component.registerComponent('ControlBar', ControlBar);
+
+/**
+ * A display that indicates an error has occurred. This means that the video
+ * is unplayable.
+ *
+ * @extends ModalDialog
+ */
+
+var ErrorDisplay =
+/*#__PURE__*/
+function (_ModalDialog) {
+ _inheritsLoose(ErrorDisplay, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ErrorDisplay(player, options) {
+ var _this;
+
+ _this = _ModalDialog.call(this, player, options) || this;
+
+ _this.on(player, 'error', _this.open);
+
+ return _this;
+ }
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ var _proto = ErrorDisplay.prototype;
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return "vjs-error-display " + _ModalDialog.prototype.buildCSSClass.call(this);
+ }
+ /**
+ * Gets the localized error message based on the `Player`s error.
+ *
+ * @return {string}
+ * The `Player`s error message localized or an empty string.
+ */
+ ;
+
+ _proto.content = function content() {
+ var error = this.player().error();
+ return error ? this.localize(error.message) : '';
+ };
+
+ return ErrorDisplay;
+}(ModalDialog);
+/**
+ * The default options for an `ErrorDisplay`.
+ *
+ * @private
+ */
+
+
+ErrorDisplay.prototype.options_ = mergeOptions(ModalDialog.prototype.options_, {
+ pauseOnOpen: false,
+ fillAlways: true,
+ temporary: false,
+ uncloseable: true
+});
+Component.registerComponent('ErrorDisplay', ErrorDisplay);
+
+var LOCAL_STORAGE_KEY = 'vjs-text-track-settings';
+var COLOR_BLACK = ['#000', 'Black'];
+var COLOR_BLUE = ['#00F', 'Blue'];
+var COLOR_CYAN = ['#0FF', 'Cyan'];
+var COLOR_GREEN = ['#0F0', 'Green'];
+var COLOR_MAGENTA = ['#F0F', 'Magenta'];
+var COLOR_RED = ['#F00', 'Red'];
+var COLOR_WHITE = ['#FFF', 'White'];
+var COLOR_YELLOW = ['#FF0', 'Yellow'];
+var OPACITY_OPAQUE = ['1', 'Opaque'];
+var OPACITY_SEMI = ['0.5', 'Semi-Transparent'];
+var OPACITY_TRANS = ['0', 'Transparent']; // Configuration for the various <select> elements in the DOM of this component.
+//
+// Possible keys include:
+//
+// `default`:
+// The default option index. Only needs to be provided if not zero.
+// `parser`:
+// A function which is used to parse the value from the selected option in
+// a customized way.
+// `selector`:
+// The selector used to find the associated <select> element.
+
+var selectConfigs = {
+ backgroundColor: {
+ selector: '.vjs-bg-color > select',
+ id: 'captions-background-color-%s',
+ label: 'Color',
+ options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+ backgroundOpacity: {
+ selector: '.vjs-bg-opacity > select',
+ id: 'captions-background-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]
+ },
+ color: {
+ selector: '.vjs-fg-color > select',
+ id: 'captions-foreground-color-%s',
+ label: 'Color',
+ options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+ edgeStyle: {
+ selector: '.vjs-edge-style > select',
+ id: '%s',
+ label: 'Text Edge Style',
+ options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]
+ },
+ fontFamily: {
+ selector: '.vjs-font-family > select',
+ id: 'captions-font-family-%s',
+ label: 'Font Family',
+ options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]
+ },
+ fontPercent: {
+ selector: '.vjs-font-percent > select',
+ id: 'captions-font-size-%s',
+ label: 'Font Size',
+ options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],
+ "default": 2,
+ parser: function parser(v) {
+ return v === '1.00' ? null : Number(v);
+ }
+ },
+ textOpacity: {
+ selector: '.vjs-text-opacity > select',
+ id: 'captions-foreground-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI]
+ },
+ // Options for this object are defined below.
+ windowColor: {
+ selector: '.vjs-window-color > select',
+ id: 'captions-window-color-%s',
+ label: 'Color'
+ },
+ // Options for this object are defined below.
+ windowOpacity: {
+ selector: '.vjs-window-opacity > select',
+ id: 'captions-window-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]
+ }
+};
+selectConfigs.windowColor.options = selectConfigs.backgroundColor.options;
+/**
+ * Get the actual value of an option.
+ *
+ * @param {string} value
+ * The value to get
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+
+function parseOptionValue(value, parser) {
+ if (parser) {
+ value = parser(value);
+ }
+
+ if (value && value !== 'none') {
+ return value;
+ }
+}
+/**
+ * Gets the value of the selected <option> element within a <select> element.
+ *
+ * @param {Element} el
+ * the element to look in
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+
+
+function getSelectedOptionValue(el, parser) {
+ var value = el.options[el.options.selectedIndex].value;
+ return parseOptionValue(value, parser);
+}
+/**
+ * Sets the selected <option> element within a <select> element based on a
+ * given value.
+ *
+ * @param {Element} el
+ * The element to look in.
+ *
+ * @param {string} value
+ * the property to look on.
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value before comparing.
+ *
+ * @private
+ */
+
+
+function setSelectedOption(el, value, parser) {
+ if (!value) {
+ return;
+ }
+
+ for (var i = 0; i < el.options.length; i++) {
+ if (parseOptionValue(el.options[i].value, parser) === value) {
+ el.selectedIndex = i;
+ break;
+ }
+ }
+}
+/**
+ * Manipulate Text Tracks settings.
+ *
+ * @extends ModalDialog
+ */
+
+
+var TextTrackSettings =
+/*#__PURE__*/
+function (_ModalDialog) {
+ _inheritsLoose(TextTrackSettings, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackSettings(player, options) {
+ var _this;
+
+ options.temporary = false;
+ _this = _ModalDialog.call(this, player, options) || this;
+ _this.updateDisplay = bind(_assertThisInitialized(_this), _this.updateDisplay); // fill the modal and pretend we have opened it
+
+ _this.fill();
+
+ _this.hasBeenOpened_ = _this.hasBeenFilled_ = true;
+ _this.endDialog = createEl('p', {
+ className: 'vjs-control-text',
+ textContent: _this.localize('End of dialog window.')
+ });
+
+ _this.el().appendChild(_this.endDialog);
+
+ _this.setDefaults(); // Grab `persistTextTrackSettings` from the player options if not passed in child options
+
+
+ if (options.persistTextTrackSettings === undefined) {
+ _this.options_.persistTextTrackSettings = _this.options_.playerOptions.persistTextTrackSettings;
+ }
+
+ _this.on(_this.$('.vjs-done-button'), 'click', function () {
+ _this.saveSettings();
+
+ _this.close();
+ });
+
+ _this.on(_this.$('.vjs-default-button'), 'click', function () {
+ _this.setDefaults();
+
+ _this.updateDisplay();
+ });
+
+ each(selectConfigs, function (config) {
+ _this.on(_this.$(config.selector), 'change', _this.updateDisplay);
+ });
+
+ if (_this.options_.persistTextTrackSettings) {
+ _this.restoreSettings();
+ }
+
+ return _this;
+ }
+
+ var _proto = TextTrackSettings.prototype;
+
+ _proto.dispose = function dispose() {
+ this.endDialog = null;
+
+ _ModalDialog.prototype.dispose.call(this);
+ }
+ /**
+ * Create a <select> element with configured options.
+ *
+ * @param {string} key
+ * Configuration key to use during creation.
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+ ;
+
+ _proto.createElSelect_ = function createElSelect_(key, legendId, type) {
+ var _this2 = this;
+
+ if (legendId === void 0) {
+ legendId = '';
+ }
+
+ if (type === void 0) {
+ type = 'label';
+ }
+
+ var config = selectConfigs[key];
+ var id = config.id.replace('%s', this.id_);
+ var selectLabelledbyIds = [legendId, id].join(' ').trim();
+ return ["<" + type + " id=\"" + id + "\" class=\"" + (type === 'label' ? 'vjs-label' : '') + "\">", this.localize(config.label), "</" + type + ">", "<select aria-labelledby=\"" + selectLabelledbyIds + "\">"].concat(config.options.map(function (o) {
+ var optionId = id + '-' + o[1].replace(/\W+/g, '');
+ return ["<option id=\"" + optionId + "\" value=\"" + o[0] + "\" ", "aria-labelledby=\"" + selectLabelledbyIds + " " + optionId + "\">", _this2.localize(o[1]), '</option>'].join('');
+ })).concat('</select>').join('');
+ }
+ /**
+ * Create foreground color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+ ;
+
+ _proto.createElFgColor_ = function createElFgColor_() {
+ var legendId = "captions-text-legend-" + this.id_;
+ return ['<fieldset class="vjs-fg-color vjs-track-setting">', "<legend id=\"" + legendId + "\">", this.localize('Text'), '</legend>', this.createElSelect_('color', legendId), '<span class="vjs-text-opacity vjs-opacity">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');
+ }
+ /**
+ * Create background color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+ ;
+
+ _proto.createElBgColor_ = function createElBgColor_() {
+ var legendId = "captions-background-" + this.id_;
+ return ['<fieldset class="vjs-bg-color vjs-track-setting">', "<legend id=\"" + legendId + "\">", this.localize('Background'), '</legend>', this.createElSelect_('backgroundColor', legendId), '<span class="vjs-bg-opacity vjs-opacity">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');
+ }
+ /**
+ * Create window color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+ ;
+
+ _proto.createElWinColor_ = function createElWinColor_() {
+ var legendId = "captions-window-" + this.id_;
+ return ['<fieldset class="vjs-window-color vjs-track-setting">', "<legend id=\"" + legendId + "\">", this.localize('Window'), '</legend>', this.createElSelect_('windowColor', legendId), '<span class="vjs-window-opacity vjs-opacity">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');
+ }
+ /**
+ * Create color elements for the component
+ *
+ * @return {Element}
+ * The element that was created
+ *
+ * @private
+ */
+ ;
+
+ _proto.createElColors_ = function createElColors_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-colors',
+ innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')
+ });
+ }
+ /**
+ * Create font elements for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+ ;
+
+ _proto.createElFont_ = function createElFont_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-font',
+ innerHTML: ['<fieldset class="vjs-font-percent vjs-track-setting">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class="vjs-edge-style vjs-track-setting">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class="vjs-font-family vjs-track-setting">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')
+ });
+ }
+ /**
+ * Create controls for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+ ;
+
+ _proto.createElControls_ = function createElControls_() {
+ var defaultsDescription = this.localize('restore all settings to the default values');
+ return createEl('div', {
+ className: 'vjs-track-settings-controls',
+ innerHTML: ["<button type=\"button\" class=\"vjs-default-button\" title=\"" + defaultsDescription + "\">", this.localize('Reset'), "<span class=\"vjs-control-text\"> " + defaultsDescription + "</span>", '</button>', "<button type=\"button\" class=\"vjs-done-button\">" + this.localize('Done') + "</button>"].join('')
+ });
+ };
+
+ _proto.content = function content() {
+ return [this.createElColors_(), this.createElFont_(), this.createElControls_()];
+ };
+
+ _proto.label = function label() {
+ return this.localize('Caption Settings Dialog');
+ };
+
+ _proto.description = function description() {
+ return this.localize('Beginning of dialog window. Escape will cancel and close the window.');
+ };
+
+ _proto.buildCSSClass = function buildCSSClass() {
+ return _ModalDialog.prototype.buildCSSClass.call(this) + ' vjs-text-track-settings';
+ }
+ /**
+ * Gets an object of text track settings (or null).
+ *
+ * @return {Object}
+ * An object with config values parsed from the DOM or localStorage.
+ */
+ ;
+
+ _proto.getValues = function getValues() {
+ var _this3 = this;
+
+ return reduce(selectConfigs, function (accum, config, key) {
+ var value = getSelectedOptionValue(_this3.$(config.selector), config.parser);
+
+ if (value !== undefined) {
+ accum[key] = value;
+ }
+
+ return accum;
+ }, {});
+ }
+ /**
+ * Sets text track settings from an object of values.
+ *
+ * @param {Object} values
+ * An object with config values parsed from the DOM or localStorage.
+ */
+ ;
+
+ _proto.setValues = function setValues(values) {
+ var _this4 = this;
+
+ each(selectConfigs, function (config, key) {
+ setSelectedOption(_this4.$(config.selector), values[key], config.parser);
+ });
+ }
+ /**
+ * Sets all `<select>` elements to their default values.
+ */
+ ;
+
+ _proto.setDefaults = function setDefaults() {
+ var _this5 = this;
+
+ each(selectConfigs, function (config) {
+ var index = config.hasOwnProperty('default') ? config["default"] : 0;
+ _this5.$(config.selector).selectedIndex = index;
+ });
+ }
+ /**
+ * Restore texttrack settings from localStorage
+ */
+ ;
+
+ _proto.restoreSettings = function restoreSettings() {
+ var values;
+
+ try {
+ values = JSON.parse(window$1.localStorage.getItem(LOCAL_STORAGE_KEY));
+ } catch (err) {
+ log.warn(err);
+ }
+
+ if (values) {
+ this.setValues(values);
+ }
+ }
+ /**
+ * Save text track settings to localStorage
+ */
+ ;
+
+ _proto.saveSettings = function saveSettings() {
+ if (!this.options_.persistTextTrackSettings) {
+ return;
+ }
+
+ var values = this.getValues();
+
+ try {
+ if (Object.keys(values).length) {
+ window$1.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(values));
+ } else {
+ window$1.localStorage.removeItem(LOCAL_STORAGE_KEY);
+ }
+ } catch (err) {
+ log.warn(err);
+ }
+ }
+ /**
+ * Update display of text track settings
+ */
+ ;
+
+ _proto.updateDisplay = function updateDisplay() {
+ var ttDisplay = this.player_.getChild('textTrackDisplay');
+
+ if (ttDisplay) {
+ ttDisplay.updateDisplay();
+ }
+ }
+ /**
+ * conditionally blur the element and refocus the captions button
+ *
+ * @private
+ */
+ ;
+
+ _proto.conditionalBlur_ = function conditionalBlur_() {
+ this.previouslyActiveEl_ = null;
+ var cb = this.player_.controlBar;
+ var subsCapsBtn = cb && cb.subsCapsButton;
+ var ccBtn = cb && cb.captionsButton;
+
+ if (subsCapsBtn) {
+ subsCapsBtn.focus();
+ } else if (ccBtn) {
+ ccBtn.focus();
+ }
+ };
+
+ return TextTrackSettings;
+}(ModalDialog);
+
+Component.registerComponent('TextTrackSettings', TextTrackSettings);
+
+/**
+ * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.
+ *
+ * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.
+ *
+ * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.
+ * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.
+ * @example <caption>How to disable the resize manager</caption>
+ * const player = videojs('#vid', {
+ * resizeManager: false
+ * });
+ *
+ * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}
+ *
+ * @extends Component
+ */
+
+var ResizeManager =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(ResizeManager, _Component);
+
+ /**
+ * Create the ResizeManager.
+ *
+ * @param {Object} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of ResizeManager options.
+ *
+ * @param {Object} [options.ResizeObserver]
+ * A polyfill for ResizeObserver can be passed in here.
+ * If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.
+ */
+ function ResizeManager(player, options) {
+ var _this;
+
+ var RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window$1.ResizeObserver; // if `null` was passed, we want to disable the ResizeObserver
+
+ if (options.ResizeObserver === null) {
+ RESIZE_OBSERVER_AVAILABLE = false;
+ } // Only create an element when ResizeObserver isn't available
+
+
+ var options_ = mergeOptions({
+ createEl: !RESIZE_OBSERVER_AVAILABLE,
+ reportTouchActivity: false
+ }, options);
+ _this = _Component.call(this, player, options_) || this;
+ _this.ResizeObserver = options.ResizeObserver || window$1.ResizeObserver;
+ _this.loadListener_ = null;
+ _this.resizeObserver_ = null;
+ _this.debouncedHandler_ = debounce(function () {
+ _this.resizeHandler();
+ }, 100, false, _assertThisInitialized(_this));
+
+ if (RESIZE_OBSERVER_AVAILABLE) {
+ _this.resizeObserver_ = new _this.ResizeObserver(_this.debouncedHandler_);
+
+ _this.resizeObserver_.observe(player.el());
+ } else {
+ _this.loadListener_ = function () {
+ if (!_this.el_ || !_this.el_.contentWindow) {
+ return;
+ }
+
+ var debouncedHandler_ = _this.debouncedHandler_;
+
+ var unloadListener_ = _this.unloadListener_ = function () {
+ off(this, 'resize', debouncedHandler_);
+ off(this, 'unload', unloadListener_);
+ unloadListener_ = null;
+ }; // safari and edge can unload the iframe before resizemanager dispose
+ // we have to dispose of event handlers correctly before that happens
+
+
+ on(_this.el_.contentWindow, 'unload', unloadListener_);
+ on(_this.el_.contentWindow, 'resize', debouncedHandler_);
+ };
+
+ _this.one('load', _this.loadListener_);
+ }
+
+ return _this;
+ }
+
+ var _proto = ResizeManager.prototype;
+
+ _proto.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'iframe', {
+ className: 'vjs-resize-manager',
+ tabIndex: -1
+ }, {
+ 'aria-hidden': 'true'
+ });
+ }
+ /**
+ * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver
+ *
+ * @fires Player#playerresize
+ */
+ ;
+
+ _proto.resizeHandler = function resizeHandler() {
+ /**
+ * Called when the player size has changed
+ *
+ * @event Player#playerresize
+ * @type {EventTarget~Event}
+ */
+ // make sure player is still around to trigger
+ // prevents this from causing an error after dispose
+ if (!this.player_ || !this.player_.trigger) {
+ return;
+ }
+
+ this.player_.trigger('playerresize');
+ };
+
+ _proto.dispose = function dispose() {
+ if (this.debouncedHandler_) {
+ this.debouncedHandler_.cancel();
+ }
+
+ if (this.resizeObserver_) {
+ if (this.player_.el()) {
+ this.resizeObserver_.unobserve(this.player_.el());
+ }
+
+ this.resizeObserver_.disconnect();
+ }
+
+ if (this.loadListener_) {
+ this.off('load', this.loadListener_);
+ }
+
+ if (this.el_ && this.el_.contentWindow && this.unloadListener_) {
+ this.unloadListener_.call(this.el_.contentWindow);
+ }
+
+ this.ResizeObserver = null;
+ this.resizeObserver = null;
+ this.debouncedHandler_ = null;
+ this.loadListener_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ return ResizeManager;
+}(Component);
+
+Component.registerComponent('ResizeManager', ResizeManager);
+
+/**
+ * Computes the median of an array.
+ *
+ * @param {number[]} arr
+ * Input array of numbers.
+ *
+ * @return {number}
+ * Median value.
+ */
+var median = function median(arr) {
+ var mid = Math.floor(arr.length / 2);
+ var sortedList = [].concat(arr).sort(function (a, b) {
+ return a - b;
+ });
+ return arr.length % 2 !== 0 ? sortedList[mid] : (sortedList[mid - 1] + sortedList[mid]) / 2;
+};
+
+/* track when we are at the live edge, and other helpers for live playback */
+
+var LiveTracker =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(LiveTracker, _Component);
+
+ function LiveTracker(player, options) {
+ var _this;
+
+ // LiveTracker does not need an element
+ var options_ = mergeOptions({
+ createEl: false
+ }, options);
+ _this = _Component.call(this, player, options_) || this;
+
+ _this.reset_();
+
+ _this.on(_this.player_, 'durationchange', _this.handleDurationchange); // we don't need to track live playback if the document is hidden,
+ // also, tracking when the document is hidden can
+ // cause the CPU to spike and eventually crash the page on IE11.
+
+
+ if (IE_VERSION && 'hidden' in document && 'visibilityState' in document) {
+ _this.on(document, 'visibilitychange', _this.handleVisibilityChange);
+ }
+
+ return _this;
+ }
+
+ var _proto = LiveTracker.prototype;
+
+ _proto.handleVisibilityChange = function handleVisibilityChange() {
+ if (this.player_.duration() !== Infinity) {
+ return;
+ }
+
+ if (document.hidden) {
+ this.stopTracking();
+ } else {
+ this.startTracking();
+ }
+ };
+
+ _proto.isBehind_ = function isBehind_() {
+ // don't report that we are behind until a timeupdate has been seen
+ if (!this.timeupdateSeen_) {
+ return false;
+ }
+
+ var liveCurrentTime = this.liveCurrentTime();
+ var currentTime = this.player_.currentTime(); // the live edge window is the amount of seconds away from live
+ // that a player can be, but still be considered live.
+ // we add 0.07 because the live tracking happens every 30ms
+ // and we want some wiggle room for short segment live playback
+
+ var liveEdgeWindow = this.seekableIncrement_ * 2 + 0.07; // on Android liveCurrentTime can bee Infinity, because seekableEnd
+ // can be Infinity, so we handle that case.
+
+ return liveCurrentTime !== Infinity && liveCurrentTime - liveEdgeWindow >= currentTime;
+ } // all the functionality for tracking when seek end changes
+ // and for tracking how far past seek end we should be
+ ;
+
+ _proto.trackLive_ = function trackLive_() {
+ this.pastSeekEnd_ = this.pastSeekEnd_;
+ var seekable = this.player_.seekable(); // skip undefined seekable
+
+ if (!seekable || !seekable.length) {
+ return;
+ }
+
+ var newSeekEnd = this.seekableEnd(); // we can only tell if we are behind live, when seekable changes
+ // once we detect that seekable has changed we check the new seek
+ // end against current time, with a fudge value of half a second.
+
+ if (newSeekEnd !== this.lastSeekEnd_) {
+ if (this.lastSeekEnd_) {
+ // we try to get the best fit value for the seeking increment
+ // variable from the last 12 values.
+ this.seekableIncrementList_ = this.seekableIncrementList_.slice(-11);
+ this.seekableIncrementList_.push(Math.abs(newSeekEnd - this.lastSeekEnd_));
+
+ if (this.seekableIncrementList_.length > 3) {
+ this.seekableIncrement_ = median(this.seekableIncrementList_);
+ }
+ }
+
+ this.pastSeekEnd_ = 0;
+ this.lastSeekEnd_ = newSeekEnd;
+ this.trigger('seekableendchange');
+ }
+
+ this.pastSeekEnd_ = this.pastSeekEnd() + 0.03;
+
+ if (this.isBehind_() !== this.behindLiveEdge()) {
+ this.behindLiveEdge_ = this.isBehind_();
+ this.trigger('liveedgechange');
+ }
+ }
+ /**
+ * handle a durationchange event on the player
+ * and start/stop tracking accordingly.
+ */
+ ;
+
+ _proto.handleDurationchange = function handleDurationchange() {
+ if (this.player_.duration() === Infinity) {
+ this.startTracking();
+ } else {
+ this.stopTracking();
+ }
+ }
+ /**
+ * start tracking live playback
+ */
+ ;
+
+ _proto.startTracking = function startTracking() {
+ var _this2 = this;
+
+ if (this.isTracking()) {
+ return;
+ } // If we haven't seen a timeupdate, we need to check whether playback
+ // began before this component started tracking. This can happen commonly
+ // when using autoplay.
+
+
+ if (!this.timeupdateSeen_) {
+ this.timeupdateSeen_ = this.player_.hasStarted();
+ }
+
+ this.trackingInterval_ = this.setInterval(this.trackLive_, 30);
+ this.trackLive_();
+ this.on(this.player_, 'play', this.trackLive_);
+ this.on(this.player_, 'pause', this.trackLive_); // this is to prevent showing that we are not live
+ // before a video starts to play
+
+ if (!this.timeupdateSeen_) {
+ this.one(this.player_, 'play', this.handlePlay);
+
+ this.handleTimeupdate = function () {
+ _this2.timeupdateSeen_ = true;
+ _this2.handleTimeupdate = null;
+ };
+
+ this.one(this.player_, 'timeupdate', this.handleTimeupdate);
+ }
+ };
+
+ _proto.handlePlay = function handlePlay() {
+ this.one(this.player_, 'timeupdate', this.seekToLiveEdge);
+ }
+ /**
+ * Stop tracking, and set all internal variables to
+ * their initial value.
+ */
+ ;
+
+ _proto.reset_ = function reset_() {
+ this.pastSeekEnd_ = 0;
+ this.lastSeekEnd_ = null;
+ this.behindLiveEdge_ = null;
+ this.timeupdateSeen_ = false;
+ this.clearInterval(this.trackingInterval_);
+ this.trackingInterval_ = null;
+ this.seekableIncrement_ = 12;
+ this.seekableIncrementList_ = [];
+ this.off(this.player_, 'play', this.trackLive_);
+ this.off(this.player_, 'pause', this.trackLive_);
+ this.off(this.player_, 'play', this.handlePlay);
+ this.off(this.player_, 'timeupdate', this.seekToLiveEdge);
+
+ if (this.handleTimeupdate) {
+ this.off(this.player_, 'timeupdate', this.handleTimeupdate);
+ this.handleTimeupdate = null;
+ }
+ }
+ /**
+ * stop tracking live playback
+ */
+ ;
+
+ _proto.stopTracking = function stopTracking() {
+ if (!this.isTracking()) {
+ return;
+ }
+
+ this.reset_();
+ }
+ /**
+ * A helper to get the player seekable end
+ * so that we don't have to null check everywhere
+ */
+ ;
+
+ _proto.seekableEnd = function seekableEnd() {
+ var seekable = this.player_.seekable();
+ var seekableEnds = [];
+ var i = seekable ? seekable.length : 0;
+
+ while (i--) {
+ seekableEnds.push(seekable.end(i));
+ } // grab the furthest seekable end after sorting, or if there are none
+ // default to Infinity
+
+
+ return seekableEnds.length ? seekableEnds.sort()[seekableEnds.length - 1] : Infinity;
+ }
+ /**
+ * A helper to get the player seekable start
+ * so that we don't have to null check everywhere
+ */
+ ;
+
+ _proto.seekableStart = function seekableStart() {
+ var seekable = this.player_.seekable();
+ var seekableStarts = [];
+ var i = seekable ? seekable.length : 0;
+
+ while (i--) {
+ seekableStarts.push(seekable.start(i));
+ } // grab the first seekable start after sorting, or if there are none
+ // default to 0
+
+
+ return seekableStarts.length ? seekableStarts.sort()[0] : 0;
+ }
+ /**
+ * Get the live time window
+ */
+ ;
+
+ _proto.liveWindow = function liveWindow() {
+ var liveCurrentTime = this.liveCurrentTime();
+
+ if (liveCurrentTime === Infinity) {
+ return Infinity;
+ }
+
+ return liveCurrentTime - this.seekableStart();
+ }
+ /**
+ * Determines if the player is live, only checks if this component
+ * is tracking live playback or not
+ */
+ ;
+
+ _proto.isLive = function isLive() {
+ return this.isTracking();
+ }
+ /**
+ * Determines if currentTime is at the live edge and won't fall behind
+ * on each seekableendchange
+ */
+ ;
+
+ _proto.atLiveEdge = function atLiveEdge() {
+ return !this.behindLiveEdge();
+ }
+ /**
+ * get what we expect the live current time to be
+ */
+ ;
+
+ _proto.liveCurrentTime = function liveCurrentTime() {
+ return this.pastSeekEnd() + this.seekableEnd();
+ }
+ /**
+ * Returns how far past seek end we expect current time to be
+ */
+ ;
+
+ _proto.pastSeekEnd = function pastSeekEnd() {
+ return this.pastSeekEnd_;
+ }
+ /**
+ * If we are currently behind the live edge, aka currentTime will be
+ * behind on a seekableendchange
+ */
+ ;
+
+ _proto.behindLiveEdge = function behindLiveEdge() {
+ return this.behindLiveEdge_;
+ };
+
+ _proto.isTracking = function isTracking() {
+ return typeof this.trackingInterval_ === 'number';
+ }
+ /**
+ * Seek to the live edge if we are behind the live edge
+ */
+ ;
+
+ _proto.seekToLiveEdge = function seekToLiveEdge() {
+ if (this.atLiveEdge()) {
+ return;
+ }
+
+ this.player_.currentTime(this.liveCurrentTime());
+
+ if (this.player_.paused()) {
+ this.player_.play();
+ }
+ };
+
+ _proto.dispose = function dispose() {
+ this.stopTracking();
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ return LiveTracker;
+}(Component);
+
+Component.registerComponent('LiveTracker', LiveTracker);
+
+/**
+ * This function is used to fire a sourceset when there is something
+ * similar to `mediaEl.load()` being called. It will try to find the source via
+ * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`
+ * with the source that was found or empty string if we cannot know. If it cannot
+ * find a source then `sourceset` will not be fired.
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset was setup on
+ *
+ * @return {boolean}
+ * returns false if the sourceset was not fired and true otherwise.
+ */
+
+var sourcesetLoad = function sourcesetLoad(tech) {
+ var el = tech.el(); // if `el.src` is set, that source will be loaded.
+
+ if (el.hasAttribute('src')) {
+ tech.triggerSourceset(el.src);
+ return true;
+ }
+ /**
+ * Since there isn't a src property on the media element, source elements will be used for
+ * implementing the source selection algorithm. This happens asynchronously and
+ * for most cases were there is more than one source we cannot tell what source will
+ * be loaded, without re-implementing the source selection algorithm. At this time we are not
+ * going to do that. There are three special cases that we do handle here though:
+ *
+ * 1. If there are no sources, do not fire `sourceset`.
+ * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`
+ * 3. If there is more than one `<source>` but all of them have the same `src` url.
+ * That will be our src.
+ */
+
+
+ var sources = tech.$$('source');
+ var srcUrls = [];
+ var src = ''; // if there are no sources, do not fire sourceset
+
+ if (!sources.length) {
+ return false;
+ } // only count valid/non-duplicate source elements
+
+
+ for (var i = 0; i < sources.length; i++) {
+ var url = sources[i].src;
+
+ if (url && srcUrls.indexOf(url) === -1) {
+ srcUrls.push(url);
+ }
+ } // there were no valid sources
+
+
+ if (!srcUrls.length) {
+ return false;
+ } // there is only one valid source element url
+ // use that
+
+
+ if (srcUrls.length === 1) {
+ src = srcUrls[0];
+ }
+
+ tech.triggerSourceset(src);
+ return true;
+};
+/**
+ * our implementation of an `innerHTML` descriptor for browsers
+ * that do not have one.
+ */
+
+
+var innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {
+ get: function get() {
+ return this.cloneNode(true).innerHTML;
+ },
+ set: function set(v) {
+ // make a dummy node to use innerHTML on
+ var dummy = document.createElement(this.nodeName.toLowerCase()); // set innerHTML to the value provided
+
+ dummy.innerHTML = v; // make a document fragment to hold the nodes from dummy
+
+ var docFrag = document.createDocumentFragment(); // copy all of the nodes created by the innerHTML on dummy
+ // to the document fragment
+
+ while (dummy.childNodes.length) {
+ docFrag.appendChild(dummy.childNodes[0]);
+ } // remove content
+
+
+ this.innerText = ''; // now we add all of that html in one by appending the
+ // document fragment. This is how innerHTML does it.
+
+ window$1.Element.prototype.appendChild.call(this, docFrag); // then return the result that innerHTML's setter would
+
+ return this.innerHTML;
+ }
+});
+/**
+ * Get a property descriptor given a list of priorities and the
+ * property to get.
+ */
+
+var getDescriptor = function getDescriptor(priority, prop) {
+ var descriptor = {};
+
+ for (var i = 0; i < priority.length; i++) {
+ descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);
+
+ if (descriptor && descriptor.set && descriptor.get) {
+ break;
+ }
+ }
+
+ descriptor.enumerable = true;
+ descriptor.configurable = true;
+ return descriptor;
+};
+
+var getInnerHTMLDescriptor = function getInnerHTMLDescriptor(tech) {
+ return getDescriptor([tech.el(), window$1.HTMLMediaElement.prototype, window$1.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');
+};
+/**
+ * Patches browser internal functions so that we can tell synchronously
+ * if a `<source>` was appended to the media element. For some reason this
+ * causes a `sourceset` if the the media element is ready and has no source.
+ * This happens when:
+ * - The page has just loaded and the media element does not have a source.
+ * - The media element was emptied of all sources, then `load()` was called.
+ *
+ * It does this by patching the following functions/properties when they are supported:
+ *
+ * - `append()` - can be used to add a `<source>` element to the media element
+ * - `appendChild()` - can be used to add a `<source>` element to the media element
+ * - `insertAdjacentHTML()` - can be used to add a `<source>` element to the media element
+ * - `innerHTML` - can be used to add a `<source>` element to the media element
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset is being setup on.
+ */
+
+
+var firstSourceWatch = function firstSourceWatch(tech) {
+ var el = tech.el(); // make sure firstSourceWatch isn't setup twice.
+
+ if (el.resetSourceWatch_) {
+ return;
+ }
+
+ var old = {};
+ var innerDescriptor = getInnerHTMLDescriptor(tech);
+
+ var appendWrapper = function appendWrapper(appendFn) {
+ return function () {
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var retval = appendFn.apply(el, args);
+ sourcesetLoad(tech);
+ return retval;
+ };
+ };
+
+ ['append', 'appendChild', 'insertAdjacentHTML'].forEach(function (k) {
+ if (!el[k]) {
+ return;
+ } // store the old function
+
+
+ old[k] = el[k]; // call the old function with a sourceset if a source
+ // was loaded
+
+ el[k] = appendWrapper(old[k]);
+ });
+ Object.defineProperty(el, 'innerHTML', mergeOptions(innerDescriptor, {
+ set: appendWrapper(innerDescriptor.set)
+ }));
+
+ el.resetSourceWatch_ = function () {
+ el.resetSourceWatch_ = null;
+ Object.keys(old).forEach(function (k) {
+ el[k] = old[k];
+ });
+ Object.defineProperty(el, 'innerHTML', innerDescriptor);
+ }; // on the first sourceset, we need to revert our changes
+
+
+ tech.one('sourceset', el.resetSourceWatch_);
+};
+/**
+ * our implementation of a `src` descriptor for browsers
+ * that do not have one.
+ */
+
+
+var srcDescriptorPolyfill = Object.defineProperty({}, 'src', {
+ get: function get() {
+ if (this.hasAttribute('src')) {
+ return getAbsoluteURL(window$1.Element.prototype.getAttribute.call(this, 'src'));
+ }
+
+ return '';
+ },
+ set: function set(v) {
+ window$1.Element.prototype.setAttribute.call(this, 'src', v);
+ return v;
+ }
+});
+
+var getSrcDescriptor = function getSrcDescriptor(tech) {
+ return getDescriptor([tech.el(), window$1.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');
+};
+/**
+ * setup `sourceset` handling on the `Html5` tech. This function
+ * patches the following element properties/functions:
+ *
+ * - `src` - to determine when `src` is set
+ * - `setAttribute()` - to determine when `src` is set
+ * - `load()` - this re-triggers the source selection algorithm, and can
+ * cause a sourceset.
+ *
+ * If there is no source when we are adding `sourceset` support or during a `load()`
+ * we also patch the functions listed in `firstSourceWatch`.
+ *
+ * @param {Html5} tech
+ * The tech to patch
+ */
+
+
+var setupSourceset = function setupSourceset(tech) {
+ if (!tech.featuresSourceset) {
+ return;
+ }
+
+ var el = tech.el(); // make sure sourceset isn't setup twice.
+
+ if (el.resetSourceset_) {
+ return;
+ }
+
+ var srcDescriptor = getSrcDescriptor(tech);
+ var oldSetAttribute = el.setAttribute;
+ var oldLoad = el.load;
+ Object.defineProperty(el, 'src', mergeOptions(srcDescriptor, {
+ set: function set(v) {
+ var retval = srcDescriptor.set.call(el, v); // we use the getter here to get the actual value set on src
+
+ tech.triggerSourceset(el.src);
+ return retval;
+ }
+ }));
+
+ el.setAttribute = function (n, v) {
+ var retval = oldSetAttribute.call(el, n, v);
+
+ if (/src/i.test(n)) {
+ tech.triggerSourceset(el.src);
+ }
+
+ return retval;
+ };
+
+ el.load = function () {
+ var retval = oldLoad.call(el); // if load was called, but there was no source to fire
+ // sourceset on. We have to watch for a source append
+ // as that can trigger a `sourceset` when the media element
+ // has no source
+
+ if (!sourcesetLoad(tech)) {
+ tech.triggerSourceset('');
+ firstSourceWatch(tech);
+ }
+
+ return retval;
+ };
+
+ if (el.currentSrc) {
+ tech.triggerSourceset(el.currentSrc);
+ } else if (!sourcesetLoad(tech)) {
+ firstSourceWatch(tech);
+ }
+
+ el.resetSourceset_ = function () {
+ el.resetSourceset_ = null;
+ el.load = oldLoad;
+ el.setAttribute = oldSetAttribute;
+ Object.defineProperty(el, 'src', srcDescriptor);
+
+ if (el.resetSourceWatch_) {
+ el.resetSourceWatch_();
+ }
+ };
+};
+
+/**
+ * HTML5 Media Controller - Wrapper for HTML5 Media API
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ * @extends Tech
+ */
+
+var Html5 =
+/*#__PURE__*/
+function (_Tech) {
+ _inheritsLoose(Html5, _Tech);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Html5(options, ready) {
+ var _this;
+
+ _this = _Tech.call(this, options, ready) || this;
+ var source = options.source;
+ var crossoriginTracks = false; // Set the source if one is provided
+ // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)
+ // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source
+ // anyway so the error gets fired.
+
+ if (source && (_this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {
+ _this.setSource(source);
+ } else {
+ _this.handleLateInit_(_this.el_);
+ } // setup sourceset after late sourceset/init
+
+
+ if (options.enableSourceset) {
+ _this.setupSourcesetHandling_();
+ }
+
+ if (_this.el_.hasChildNodes()) {
+ var nodes = _this.el_.childNodes;
+ var nodesLength = nodes.length;
+ var removeNodes = [];
+
+ while (nodesLength--) {
+ var node = nodes[nodesLength];
+ var nodeName = node.nodeName.toLowerCase();
+
+ if (nodeName === 'track') {
+ if (!_this.featuresNativeTextTracks) {
+ // Empty video tag tracks so the built-in player doesn't use them also.
+ // This may not be fast enough to stop HTML5 browsers from reading the tags
+ // so we'll need to turn off any default tracks if we're manually doing
+ // captions and subtitles. videoElement.textTracks
+ removeNodes.push(node);
+ } else {
+ // store HTMLTrackElement and TextTrack to remote list
+ _this.remoteTextTrackEls().addTrackElement_(node);
+
+ _this.remoteTextTracks().addTrack(node.track);
+
+ _this.textTracks().addTrack(node.track);
+
+ if (!crossoriginTracks && !_this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {
+ crossoriginTracks = true;
+ }
+ }
+ }
+ }
+
+ for (var i = 0; i < removeNodes.length; i++) {
+ _this.el_.removeChild(removeNodes[i]);
+ }
+ }
+
+ _this.proxyNativeTracks_();
+
+ if (_this.featuresNativeTextTracks && crossoriginTracks) {
+ log.warn('Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n' + 'This may prevent text tracks from loading.');
+ } // prevent iOS Safari from disabling metadata text tracks during native playback
+
+
+ _this.restoreMetadataTracksInIOSNativePlayer_(); // Determine if native controls should be used
+ // Our goal should be to get the custom controls on mobile solid everywhere
+ // so we can remove this all together. Right now this will block custom
+ // controls on touch enabled laptops like the Chrome Pixel
+
+
+ if ((TOUCH_ENABLED || IS_IPHONE || IS_NATIVE_ANDROID) && options.nativeControlsForTouch === true) {
+ _this.setControls(true);
+ } // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`
+ // into a `fullscreenchange` event
+
+
+ _this.proxyWebkitFullscreen_();
+
+ _this.triggerReady();
+
+ return _this;
+ }
+ /**
+ * Dispose of `HTML5` media element and remove all tracks.
+ */
+
+
+ var _proto = Html5.prototype;
+
+ _proto.dispose = function dispose() {
+ if (this.el_ && this.el_.resetSourceset_) {
+ this.el_.resetSourceset_();
+ }
+
+ Html5.disposeMediaElement(this.el_);
+ this.options_ = null; // tech will handle clearing of the emulated track list
+
+ _Tech.prototype.dispose.call(this);
+ }
+ /**
+ * Modify the media element so that we can detect when
+ * the source is changed. Fires `sourceset` just after the source has changed
+ */
+ ;
+
+ _proto.setupSourcesetHandling_ = function setupSourcesetHandling_() {
+ setupSourceset(this);
+ }
+ /**
+ * When a captions track is enabled in the iOS Safari native player, all other
+ * tracks are disabled (including metadata tracks), which nulls all of their
+ * associated cue points. This will restore metadata tracks to their pre-fullscreen
+ * state in those cases so that cue points are not needlessly lost.
+ *
+ * @private
+ */
+ ;
+
+ _proto.restoreMetadataTracksInIOSNativePlayer_ = function restoreMetadataTracksInIOSNativePlayer_() {
+ var textTracks = this.textTracks();
+ var metadataTracksPreFullscreenState; // captures a snapshot of every metadata track's current state
+
+ var takeMetadataTrackSnapshot = function takeMetadataTrackSnapshot() {
+ metadataTracksPreFullscreenState = [];
+
+ for (var i = 0; i < textTracks.length; i++) {
+ var track = textTracks[i];
+
+ if (track.kind === 'metadata') {
+ metadataTracksPreFullscreenState.push({
+ track: track,
+ storedMode: track.mode
+ });
+ }
+ }
+ }; // snapshot each metadata track's initial state, and update the snapshot
+ // each time there is a track 'change' event
+
+
+ takeMetadataTrackSnapshot();
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+ this.on('dispose', function () {
+ return textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ });
+
+ var restoreTrackMode = function restoreTrackMode() {
+ for (var i = 0; i < metadataTracksPreFullscreenState.length; i++) {
+ var storedTrack = metadataTracksPreFullscreenState[i];
+
+ if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {
+ storedTrack.track.mode = storedTrack.storedMode;
+ }
+ } // we only want this handler to be executed on the first 'change' event
+
+
+ textTracks.removeEventListener('change', restoreTrackMode);
+ }; // when we enter fullscreen playback, stop updating the snapshot and
+ // restore all track modes to their pre-fullscreen state
+
+
+ this.on('webkitbeginfullscreen', function () {
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot); // remove the listener before adding it just in case it wasn't previously removed
+
+ textTracks.removeEventListener('change', restoreTrackMode);
+ textTracks.addEventListener('change', restoreTrackMode);
+ }); // start updating the snapshot again after leaving fullscreen
+
+ this.on('webkitendfullscreen', function () {
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot); // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback
+
+ textTracks.removeEventListener('change', restoreTrackMode);
+ });
+ }
+ /**
+ * Attempt to force override of tracks for the given type
+ *
+ * @param {string} type - Track type to override, possible values include 'Audio',
+ * 'Video', and 'Text'.
+ * @param {boolean} override - If set to true native audio/video will be overridden,
+ * otherwise native audio/video will potentially be used.
+ * @private
+ */
+ ;
+
+ _proto.overrideNative_ = function overrideNative_(type, override) {
+ var _this2 = this;
+
+ // If there is no behavioral change don't add/remove listeners
+ if (override !== this["featuresNative" + type + "Tracks"]) {
+ return;
+ }
+
+ var lowerCaseType = type.toLowerCase();
+
+ if (this[lowerCaseType + "TracksListeners_"]) {
+ Object.keys(this[lowerCaseType + "TracksListeners_"]).forEach(function (eventName) {
+ var elTracks = _this2.el()[lowerCaseType + "Tracks"];
+
+ elTracks.removeEventListener(eventName, _this2[lowerCaseType + "TracksListeners_"][eventName]);
+ });
+ }
+
+ this["featuresNative" + type + "Tracks"] = !override;
+ this[lowerCaseType + "TracksListeners_"] = null;
+ this.proxyNativeTracksForType_(lowerCaseType);
+ }
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ */
+ ;
+
+ _proto.overrideNativeAudioTracks = function overrideNativeAudioTracks(override) {
+ this.overrideNative_('Audio', override);
+ }
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ */
+ ;
+
+ _proto.overrideNativeVideoTracks = function overrideNativeVideoTracks(override) {
+ this.overrideNative_('Video', override);
+ }
+ /**
+ * Proxy native track list events for the given type to our track
+ * lists if the browser we are playing in supports that type of track list.
+ *
+ * @param {string} name - Track type; values include 'audio', 'video', and 'text'
+ * @private
+ */
+ ;
+
+ _proto.proxyNativeTracksForType_ = function proxyNativeTracksForType_(name) {
+ var _this3 = this;
+
+ var props = NORMAL[name];
+ var elTracks = this.el()[props.getterName];
+ var techTracks = this[props.getterName]();
+
+ if (!this["featuresNative" + props.capitalName + "Tracks"] || !elTracks || !elTracks.addEventListener) {
+ return;
+ }
+
+ var listeners = {
+ change: function change(e) {
+ techTracks.trigger({
+ type: 'change',
+ target: techTracks,
+ currentTarget: techTracks,
+ srcElement: techTracks
+ });
+ },
+ addtrack: function addtrack(e) {
+ techTracks.addTrack(e.track);
+ },
+ removetrack: function removetrack(e) {
+ techTracks.removeTrack(e.track);
+ }
+ };
+
+ var removeOldTracks = function removeOldTracks() {
+ var removeTracks = [];
+
+ for (var i = 0; i < techTracks.length; i++) {
+ var found = false;
+
+ for (var j = 0; j < elTracks.length; j++) {
+ if (elTracks[j] === techTracks[i]) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ removeTracks.push(techTracks[i]);
+ }
+ }
+
+ while (removeTracks.length) {
+ techTracks.removeTrack(removeTracks.shift());
+ }
+ };
+
+ this[props.getterName + 'Listeners_'] = listeners;
+ Object.keys(listeners).forEach(function (eventName) {
+ var listener = listeners[eventName];
+ elTracks.addEventListener(eventName, listener);
+
+ _this3.on('dispose', function (e) {
+ return elTracks.removeEventListener(eventName, listener);
+ });
+ }); // Remove (native) tracks that are not used anymore
+
+ this.on('loadstart', removeOldTracks);
+ this.on('dispose', function (e) {
+ return _this3.off('loadstart', removeOldTracks);
+ });
+ }
+ /**
+ * Proxy all native track list events to our track lists if the browser we are playing
+ * in supports that type of track list.
+ *
+ * @private
+ */
+ ;
+
+ _proto.proxyNativeTracks_ = function proxyNativeTracks_() {
+ var _this4 = this;
+
+ NORMAL.names.forEach(function (name) {
+ _this4.proxyNativeTracksForType_(name);
+ });
+ }
+ /**
+ * Create the `Html5` Tech's DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+ ;
+
+ _proto.createEl = function createEl() {
+ var el = this.options_.tag; // Check if this browser supports moving the element into the box.
+ // On the iPhone video will break if you move the element,
+ // So we have to create a brand new element.
+ // If we ingested the player div, we do not need to move the media element.
+
+ if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {
+ // If the original tag is still there, clone and remove it.
+ if (el) {
+ var clone = el.cloneNode(true);
+
+ if (el.parentNode) {
+ el.parentNode.insertBefore(clone, el);
+ }
+
+ Html5.disposeMediaElement(el);
+ el = clone;
+ } else {
+ el = document.createElement('video'); // determine if native controls should be used
+
+ var tagAttributes = this.options_.tag && getAttributes(this.options_.tag);
+ var attributes = mergeOptions({}, tagAttributes);
+
+ if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {
+ delete attributes.controls;
+ }
+
+ setAttributes(el, assign(attributes, {
+ id: this.options_.techId,
+ "class": 'vjs-tech'
+ }));
+ }
+
+ el.playerId = this.options_.playerId;
+ }
+
+ if (typeof this.options_.preload !== 'undefined') {
+ setAttribute(el, 'preload', this.options_.preload);
+ } // Update specific tag settings, in case they were overridden
+ // `autoplay` has to be *last* so that `muted` and `playsinline` are present
+ // when iOS/Safari or other browsers attempt to autoplay.
+
+
+ var settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];
+
+ for (var i = 0; i < settingsAttrs.length; i++) {
+ var attr = settingsAttrs[i];
+ var value = this.options_[attr];
+
+ if (typeof value !== 'undefined') {
+ if (value) {
+ setAttribute(el, attr, attr);
+ } else {
+ removeAttribute(el, attr);
+ }
+
+ el[attr] = value;
+ }
+ }
+
+ return el;
+ }
+ /**
+ * This will be triggered if the loadstart event has already fired, before videojs was
+ * ready. Two known examples of when this can happen are:
+ * 1. If we're loading the playback object after it has started loading
+ * 2. The media is already playing the (often with autoplay on) then
+ *
+ * This function will fire another loadstart so that videojs can catchup.
+ *
+ * @fires Tech#loadstart
+ *
+ * @return {undefined}
+ * returns nothing.
+ */
+ ;
+
+ _proto.handleLateInit_ = function handleLateInit_(el) {
+ if (el.networkState === 0 || el.networkState === 3) {
+ // The video element hasn't started loading the source yet
+ // or didn't find a source
+ return;
+ }
+
+ if (el.readyState === 0) {
+ // NetworkState is set synchronously BUT loadstart is fired at the
+ // end of the current stack, usually before setInterval(fn, 0).
+ // So at this point we know loadstart may have already fired or is
+ // about to fire, and either way the player hasn't seen it yet.
+ // We don't want to fire loadstart prematurely here and cause a
+ // double loadstart so we'll wait and see if it happens between now
+ // and the next loop, and fire it if not.
+ // HOWEVER, we also want to make sure it fires before loadedmetadata
+ // which could also happen between now and the next loop, so we'll
+ // watch for that also.
+ var loadstartFired = false;
+
+ var setLoadstartFired = function setLoadstartFired() {
+ loadstartFired = true;
+ };
+
+ this.on('loadstart', setLoadstartFired);
+
+ var triggerLoadstart = function triggerLoadstart() {
+ // We did miss the original loadstart. Make sure the player
+ // sees loadstart before loadedmetadata
+ if (!loadstartFired) {
+ this.trigger('loadstart');
+ }
+ };
+
+ this.on('loadedmetadata', triggerLoadstart);
+ this.ready(function () {
+ this.off('loadstart', setLoadstartFired);
+ this.off('loadedmetadata', triggerLoadstart);
+
+ if (!loadstartFired) {
+ // We did miss the original native loadstart. Fire it now.
+ this.trigger('loadstart');
+ }
+ });
+ return;
+ } // From here on we know that loadstart already fired and we missed it.
+ // The other readyState events aren't as much of a problem if we double
+ // them, so not going to go to as much trouble as loadstart to prevent
+ // that unless we find reason to.
+
+
+ var eventsToTrigger = ['loadstart']; // loadedmetadata: newly equal to HAVE_METADATA (1) or greater
+
+ eventsToTrigger.push('loadedmetadata'); // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater
+
+ if (el.readyState >= 2) {
+ eventsToTrigger.push('loadeddata');
+ } // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater
+
+
+ if (el.readyState >= 3) {
+ eventsToTrigger.push('canplay');
+ } // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)
+
+
+ if (el.readyState >= 4) {
+ eventsToTrigger.push('canplaythrough');
+ } // We still need to give the player time to add event listeners
+
+
+ this.ready(function () {
+ eventsToTrigger.forEach(function (type) {
+ this.trigger(type);
+ }, this);
+ });
+ }
+ /**
+ * Set current time for the `HTML5` tech.
+ *
+ * @param {number} seconds
+ * Set the current time of the media to this.
+ */
+ ;
+
+ _proto.setCurrentTime = function setCurrentTime(seconds) {
+ try {
+ this.el_.currentTime = seconds;
+ } catch (e) {
+ log(e, 'Video is not ready. (Video.js)'); // this.warning(VideoJS.warnings.videoNotReady);
+ }
+ }
+ /**
+ * Get the current duration of the HTML5 media element.
+ *
+ * @return {number}
+ * The duration of the media or 0 if there is no duration.
+ */
+ ;
+
+ _proto.duration = function duration() {
+ var _this5 = this;
+
+ // Android Chrome will report duration as Infinity for VOD HLS until after
+ // playback has started, which triggers the live display erroneously.
+ // Return NaN if playback has not started and trigger a durationupdate once
+ // the duration can be reliably known.
+ if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {
+ // Wait for the first `timeupdate` with currentTime > 0 - there may be
+ // several with 0
+ var checkProgress = function checkProgress() {
+ if (_this5.el_.currentTime > 0) {
+ // Trigger durationchange for genuinely live video
+ if (_this5.el_.duration === Infinity) {
+ _this5.trigger('durationchange');
+ }
+
+ _this5.off('timeupdate', checkProgress);
+ }
+ };
+
+ this.on('timeupdate', checkProgress);
+ return NaN;
+ }
+
+ return this.el_.duration || NaN;
+ }
+ /**
+ * Get the current width of the HTML5 media element.
+ *
+ * @return {number}
+ * The width of the HTML5 media element.
+ */
+ ;
+
+ _proto.width = function width() {
+ return this.el_.offsetWidth;
+ }
+ /**
+ * Get the current height of the HTML5 media element.
+ *
+ * @return {number}
+ * The height of the HTML5 media element.
+ */
+ ;
+
+ _proto.height = function height() {
+ return this.el_.offsetHeight;
+ }
+ /**
+ * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into
+ * `fullscreenchange` event.
+ *
+ * @private
+ * @fires fullscreenchange
+ * @listens webkitendfullscreen
+ * @listens webkitbeginfullscreen
+ * @listens webkitbeginfullscreen
+ */
+ ;
+
+ _proto.proxyWebkitFullscreen_ = function proxyWebkitFullscreen_() {
+ var _this6 = this;
+
+ if (!('webkitDisplayingFullscreen' in this.el_)) {
+ return;
+ }
+
+ var endFn = function endFn() {
+ this.trigger('fullscreenchange', {
+ isFullscreen: false
+ });
+ };
+
+ var beginFn = function beginFn() {
+ if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {
+ this.one('webkitendfullscreen', endFn);
+ this.trigger('fullscreenchange', {
+ isFullscreen: true
+ });
+ }
+ };
+
+ this.on('webkitbeginfullscreen', beginFn);
+ this.on('dispose', function () {
+ _this6.off('webkitbeginfullscreen', beginFn);
+
+ _this6.off('webkitendfullscreen', endFn);
+ });
+ }
+ /**
+ * Check if fullscreen is supported on the current playback device.
+ *
+ * @return {boolean}
+ * - True if fullscreen is supported.
+ * - False if fullscreen is not supported.
+ */
+ ;
+
+ _proto.supportsFullScreen = function supportsFullScreen() {
+ if (typeof this.el_.webkitEnterFullScreen === 'function') {
+ var userAgent = window$1.navigator && window$1.navigator.userAgent || ''; // Seems to be broken in Chromium/Chrome && Safari in Leopard
+
+ if (/Android/.test(userAgent) || !/Chrome|Mac OS X 10.5/.test(userAgent)) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+ /**
+ * Request that the `HTML5` Tech enter fullscreen.
+ */
+ ;
+
+ _proto.enterFullScreen = function enterFullScreen() {
+ var video = this.el_;
+
+ if (video.paused && video.networkState <= video.HAVE_METADATA) {
+ // attempt to prime the video element for programmatic access
+ // this isn't necessary on the desktop but shouldn't hurt
+ this.el_.play(); // playing and pausing synchronously during the transition to fullscreen
+ // can get iOS ~6.1 devices into a play/pause loop
+
+ this.setTimeout(function () {
+ video.pause();
+ video.webkitEnterFullScreen();
+ }, 0);
+ } else {
+ video.webkitEnterFullScreen();
+ }
+ }
+ /**
+ * Request that the `HTML5` Tech exit fullscreen.
+ */
+ ;
+
+ _proto.exitFullScreen = function exitFullScreen() {
+ this.el_.webkitExitFullScreen();
+ }
+ /**
+ * Create a floating video window always on top of other windows so that users may
+ * continue consuming media while they interact with other content sites, or
+ * applications on their device.
+ *
+ * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
+ *
+ * @return {Promise}
+ * A promise with a Picture-in-Picture window.
+ */
+ ;
+
+ _proto.requestPictureInPicture = function requestPictureInPicture() {
+ return this.el_.requestPictureInPicture();
+ }
+ /**
+ * A getter/setter for the `Html5` Tech's source object.
+ * > Note: Please use {@link Html5#setSource}
+ *
+ * @param {Tech~SourceObject} [src]
+ * The source object you want to set on the `HTML5` techs element.
+ *
+ * @return {Tech~SourceObject|undefined}
+ * - The current source object when a source is not passed in.
+ * - undefined when setting
+ *
+ * @deprecated Since version 5.
+ */
+ ;
+
+ _proto.src = function src(_src) {
+ if (_src === undefined) {
+ return this.el_.src;
+ } // Setting src through `src` instead of `setSrc` will be deprecated
+
+
+ this.setSrc(_src);
+ }
+ /**
+ * Reset the tech by removing all sources and then calling
+ * {@link Html5.resetMediaElement}.
+ */
+ ;
+
+ _proto.reset = function reset() {
+ Html5.resetMediaElement(this.el_);
+ }
+ /**
+ * Get the current source on the `HTML5` Tech. Falls back to returning the source from
+ * the HTML5 media element.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object from the HTML5 tech. With a fallback to the
+ * elements source.
+ */
+ ;
+
+ _proto.currentSrc = function currentSrc() {
+ if (this.currentSource_) {
+ return this.currentSource_.src;
+ }
+
+ return this.el_.currentSrc;
+ }
+ /**
+ * Set controls attribute for the HTML5 media Element.
+ *
+ * @param {string} val
+ * Value to set the controls attribute to
+ */
+ ;
+
+ _proto.setControls = function setControls(val) {
+ this.el_.controls = !!val;
+ }
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+ ;
+
+ _proto.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.addTextTrack.call(this, kind, label, language);
+ }
+
+ return this.el_.addTextTrack(kind, label, language);
+ }
+ /**
+ * Creates either native TextTrack or an emulated TextTrack depending
+ * on the value of `featuresNativeTextTracks`
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label]
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @param {boolean} [options.default]
+ * Default this track to on.
+ *
+ * @param {string} [options.id]
+ * The internal id to assign this track.
+ *
+ * @param {string} [options.src]
+ * A source url for the track.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+ ;
+
+ _proto.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.createRemoteTextTrack.call(this, options);
+ }
+
+ var htmlTrackElement = document.createElement('track');
+
+ if (options.kind) {
+ htmlTrackElement.kind = options.kind;
+ }
+
+ if (options.label) {
+ htmlTrackElement.label = options.label;
+ }
+
+ if (options.language || options.srclang) {
+ htmlTrackElement.srclang = options.language || options.srclang;
+ }
+
+ if (options["default"]) {
+ htmlTrackElement["default"] = options["default"];
+ }
+
+ if (options.id) {
+ htmlTrackElement.id = options.id;
+ }
+
+ if (options.src) {
+ htmlTrackElement.src = options.src;
+ }
+
+ return htmlTrackElement;
+ }
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * @param {Object} options The object should contain values for
+ * kind, language, label, and src (location of the WebVTT file)
+ * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ * automatically removed from the video element whenever the source changes
+ * @return {HTMLTrackElement} An Html Track Element.
+ * This can be an emulated {@link HTMLTrackElement} or a native one.
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+ ;
+
+ _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ var htmlTrackElement = _Tech.prototype.addRemoteTextTrack.call(this, options, manualCleanup);
+
+ if (this.featuresNativeTextTracks) {
+ this.el().appendChild(htmlTrackElement);
+ }
+
+ return htmlTrackElement;
+ }
+ /**
+ * Remove remote `TextTrack` from `TextTrackList` object
+ *
+ * @param {TextTrack} track
+ * `TextTrack` object to remove
+ */
+ ;
+
+ _proto.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ _Tech.prototype.removeRemoteTextTrack.call(this, track);
+
+ if (this.featuresNativeTextTracks) {
+ var tracks = this.$$('track');
+ var i = tracks.length;
+
+ while (i--) {
+ if (track === tracks[i] || track === tracks[i].track) {
+ this.el().removeChild(tracks[i]);
+ }
+ }
+ }
+ }
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ */
+ ;
+
+ _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ if (typeof this.el().getVideoPlaybackQuality === 'function') {
+ return this.el().getVideoPlaybackQuality();
+ }
+
+ var videoPlaybackQuality = {};
+
+ if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {
+ videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;
+ videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;
+ }
+
+ if (window$1.performance && typeof window$1.performance.now === 'function') {
+ videoPlaybackQuality.creationTime = window$1.performance.now();
+ } else if (window$1.performance && window$1.performance.timing && typeof window$1.performance.timing.navigationStart === 'number') {
+ videoPlaybackQuality.creationTime = window$1.Date.now() - window$1.performance.timing.navigationStart;
+ }
+
+ return videoPlaybackQuality;
+ };
+
+ return Html5;
+}(Tech);
+/* HTML5 Support Testing ---------------------------------------------------- */
+
+
+if (isReal()) {
+ /**
+ * Element for testing browser HTML5 media capabilities
+ *
+ * @type {Element}
+ * @constant
+ * @private
+ */
+ Html5.TEST_VID = document.createElement('video');
+ var track = document.createElement('track');
+ track.kind = 'captions';
+ track.srclang = 'en';
+ track.label = 'English';
+ Html5.TEST_VID.appendChild(track);
+}
+/**
+ * Check if HTML5 media is supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if HTML5 media is supported.
+ * - False if HTML5 media is not supported.
+ */
+
+
+Html5.isSupported = function () {
+ // IE with no Media Player is a LIAR! (#984)
+ try {
+ Html5.TEST_VID.volume = 0.5;
+ } catch (e) {
+ return false;
+ }
+
+ return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);
+};
+/**
+ * Check if the tech can support the given type
+ *
+ * @param {string} type
+ * The mimetype to check
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+
+
+Html5.canPlayType = function (type) {
+ return Html5.TEST_VID.canPlayType(type);
+};
+/**
+ * Check if the tech can support the given source
+ *
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+
+
+Html5.canPlaySource = function (srcObj, options) {
+ return Html5.canPlayType(srcObj.type);
+};
+/**
+ * Check if the volume can be changed in this browser/device.
+ * Volume cannot be changed in a lot of mobile devices.
+ * Specifically, it can't be changed from 1 on iOS.
+ *
+ * @return {boolean}
+ * - True if volume can be controlled
+ * - False otherwise
+ */
+
+
+Html5.canControlVolume = function () {
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var volume = Html5.TEST_VID.volume;
+ Html5.TEST_VID.volume = volume / 2 + 0.1;
+ return volume !== Html5.TEST_VID.volume;
+ } catch (e) {
+ return false;
+ }
+};
+/**
+ * Check if the volume can be muted in this browser/device.
+ * Some devices, e.g. iOS, don't allow changing volume
+ * but permits muting/unmuting.
+ *
+ * @return {bolean}
+ * - True if volume can be muted
+ * - False otherwise
+ */
+
+
+Html5.canMuteVolume = function () {
+ try {
+ var muted = Html5.TEST_VID.muted; // in some versions of iOS muted property doesn't always
+ // work, so we want to set both property and attribute
+
+ Html5.TEST_VID.muted = !muted;
+
+ if (Html5.TEST_VID.muted) {
+ setAttribute(Html5.TEST_VID, 'muted', 'muted');
+ } else {
+ removeAttribute(Html5.TEST_VID, 'muted', 'muted');
+ }
+
+ return muted !== Html5.TEST_VID.muted;
+ } catch (e) {
+ return false;
+ }
+};
+/**
+ * Check if the playback rate can be changed in this browser/device.
+ *
+ * @return {boolean}
+ * - True if playback rate can be controlled
+ * - False otherwise
+ */
+
+
+Html5.canControlPlaybackRate = function () {
+ // Playback rate API is implemented in Android Chrome, but doesn't do anything
+ // https://github.com/videojs/video.js/issues/3180
+ if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {
+ return false;
+ } // IE will error if Windows Media Player not installed #3315
+
+
+ try {
+ var playbackRate = Html5.TEST_VID.playbackRate;
+ Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;
+ return playbackRate !== Html5.TEST_VID.playbackRate;
+ } catch (e) {
+ return false;
+ }
+};
+/**
+ * Check if we can override a video/audio elements attributes, with
+ * Object.defineProperty.
+ *
+ * @return {boolean}
+ * - True if builtin attributes can be overridden
+ * - False otherwise
+ */
+
+
+Html5.canOverrideAttributes = function () {
+ // if we cannot overwrite the src/innerHTML property, there is no support
+ // iOS 7 safari for instance cannot do this.
+ try {
+ var noop = function noop() {};
+
+ Object.defineProperty(document.createElement('video'), 'src', {
+ get: noop,
+ set: noop
+ });
+ Object.defineProperty(document.createElement('audio'), 'src', {
+ get: noop,
+ set: noop
+ });
+ Object.defineProperty(document.createElement('video'), 'innerHTML', {
+ get: noop,
+ set: noop
+ });
+ Object.defineProperty(document.createElement('audio'), 'innerHTML', {
+ get: noop,
+ set: noop
+ });
+ } catch (e) {
+ return false;
+ }
+
+ return true;
+};
+/**
+ * Check to see if native `TextTrack`s are supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if native `TextTrack`s are supported.
+ * - False otherwise
+ */
+
+
+Html5.supportsNativeTextTracks = function () {
+ return IS_ANY_SAFARI || IS_IOS && IS_CHROME;
+};
+/**
+ * Check to see if native `VideoTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `VideoTrack`s are supported.
+ * - False otherwise
+ */
+
+
+Html5.supportsNativeVideoTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);
+};
+/**
+ * Check to see if native `AudioTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `AudioTrack`s are supported.
+ * - False otherwise
+ */
+
+
+Html5.supportsNativeAudioTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);
+};
+/**
+ * An array of events available on the Html5 tech.
+ *
+ * @private
+ * @type {Array}
+ */
+
+
+Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];
+/**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlVolume}
+ */
+
+Html5.prototype.featuresVolumeControl = Html5.canControlVolume();
+/**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default {@link Html5.canMuteVolume}
+ */
+
+Html5.prototype.featuresMuteControl = Html5.canMuteVolume();
+/**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the media
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlPlaybackRate}
+ */
+
+Html5.prototype.featuresPlaybackRate = Html5.canControlPlaybackRate();
+/**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * @type {boolean}
+ * @default
+ */
+
+Html5.prototype.featuresSourceset = Html5.canOverrideAttributes();
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports the media element
+ * moving in the DOM. iOS breaks if you move the media element, so this is set this to
+ * false there. Everywhere else this should be true.
+ *
+ * @type {boolean}
+ * @default
+ */
+
+Html5.prototype.movingMediaElementInDOM = !IS_IOS; // TODO: Previous comment: No longer appears to be used. Can probably be removed.
+// Is this true?
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports automatic media resize
+ * when going into fullscreen.
+ *
+ * @type {boolean}
+ * @default
+ */
+
+Html5.prototype.featuresFullscreenResize = true;
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports the progress event.
+ * If this is false, manual `progress` events will be triggered instead.
+ *
+ * @type {boolean}
+ * @default
+ */
+
+Html5.prototype.featuresProgressEvents = true;
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.
+ * If this is false, manual `timeupdate` events will be triggered instead.
+ *
+ * @default
+ */
+
+Html5.prototype.featuresTimeupdateEvents = true;
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeTextTracks}
+ */
+
+Html5.prototype.featuresNativeTextTracks = Html5.supportsNativeTextTracks();
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeVideoTracks}
+ */
+
+Html5.prototype.featuresNativeVideoTracks = Html5.supportsNativeVideoTracks();
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeAudioTracks}
+ */
+
+Html5.prototype.featuresNativeAudioTracks = Html5.supportsNativeAudioTracks(); // HTML5 Feature detection and Device Fixes --------------------------------- //
+
+var canPlayType = Html5.TEST_VID && Html5.TEST_VID.constructor.prototype.canPlayType;
+var mpegurlRE = /^application\/(?:x-|vnd\.apple\.)mpegurl/i;
+
+Html5.patchCanPlayType = function () {
+ // Android 4.0 and above can play HLS to some extent but it reports being unable to do so
+ // Firefox and Chrome report correctly
+ if (ANDROID_VERSION >= 4.0 && !IS_FIREFOX && !IS_CHROME) {
+ Html5.TEST_VID.constructor.prototype.canPlayType = function (type) {
+ if (type && mpegurlRE.test(type)) {
+ return 'maybe';
+ }
+
+ return canPlayType.call(this, type);
+ };
+ }
+};
+
+Html5.unpatchCanPlayType = function () {
+ var r = Html5.TEST_VID.constructor.prototype.canPlayType;
+ Html5.TEST_VID.constructor.prototype.canPlayType = canPlayType;
+ return r;
+}; // by default, patch the media element
+
+
+Html5.patchCanPlayType();
+
+Html5.disposeMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ if (el.parentNode) {
+ el.parentNode.removeChild(el);
+ } // remove any child track or source nodes to prevent their loading
+
+
+ while (el.hasChildNodes()) {
+ el.removeChild(el.firstChild);
+ } // remove any src reference. not setting `src=''` because that causes a warning
+ // in firefox
+
+
+ el.removeAttribute('src'); // force the media element to update its loading state by calling load()
+ // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)
+
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {// not supported
+ }
+ })();
+ }
+};
+
+Html5.resetMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ var sources = el.querySelectorAll('source');
+ var i = sources.length;
+
+ while (i--) {
+ el.removeChild(sources[i]);
+ } // remove any src reference.
+ // not setting `src=''` because that throws an error
+
+
+ el.removeAttribute('src');
+
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {// satisfy linter
+ }
+ })();
+ }
+};
+/* Native HTML5 element property wrapping ----------------------------------- */
+// Wrap native boolean attributes with getters that check both property and attribute
+// The list is as followed:
+// muted, defaultMuted, autoplay, controls, loop, playsinline
+
+
+[
+/**
+ * Get the value of `muted` from the media element. `muted` indicates
+ * that the volume for the media should be set to silent. This does not actually change
+ * the `volume` attribute.
+ *
+ * @method Html5#muted
+ * @return {boolean}
+ * - True if the value of `volume` should be ignored and the audio set to silent.
+ * - False if the value of `volume` should be used.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+'muted',
+/**
+ * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates
+ * whether the media should start muted or not. Only changes the default state of the
+ * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the
+ * current state.
+ *
+ * @method Html5#defaultMuted
+ * @return {boolean}
+ * - The value of `defaultMuted` from the media element.
+ * - True indicates that the media should start muted.
+ * - False indicates that the media should not start muted
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+'defaultMuted',
+/**
+ * Get the value of `autoplay` from the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#autoplay
+ * @return {boolean}
+ * - The value of `autoplay` from the media element.
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+'autoplay',
+/**
+ * Get the value of `controls` from the media element. `controls` indicates
+ * whether the native media controls should be shown or hidden.
+ *
+ * @method Html5#controls
+ * @return {boolean}
+ * - The value of `controls` from the media element.
+ * - True indicates that native controls should be showing.
+ * - False indicates that native controls should be hidden.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}
+ */
+'controls',
+/**
+ * Get the value of `loop` from the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#loop
+ * @return {boolean}
+ * - The value of `loop` from the media element.
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+'loop',
+/**
+ * Get the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#playsinline
+ * @return {boolean}
+ * - The value of `playsinline` from the media element.
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+'playsinline'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop] || this.el_.hasAttribute(prop);
+ };
+}); // Wrap native boolean attributes with setters that set both property and attribute
+// The list is as followed:
+// setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline
+// setControls is special-cased above
+
+[
+/**
+ * Set the value of `muted` on the media element. `muted` indicates that the current
+ * audio level should be silent.
+ *
+ * @method Html5#setMuted
+ * @param {boolean} muted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+'muted',
+/**
+ * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current
+ * audio level should be silent, but will only effect the muted level on intial playback..
+ *
+ * @method Html5.prototype.setDefaultMuted
+ * @param {boolean} defaultMuted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+'defaultMuted',
+/**
+ * Set the value of `autoplay` on the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#setAutoplay
+ * @param {boolean} autoplay
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+'autoplay',
+/**
+ * Set the value of `loop` on the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#setLoop
+ * @param {boolean} loop
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+'loop',
+/**
+ * Set the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#setPlaysinline
+ * @param {boolean} playsinline
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+'playsinline'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+
+ if (v) {
+ this.el_.setAttribute(prop, prop);
+ } else {
+ this.el_.removeAttribute(prop);
+ }
+ };
+}); // Wrap native properties with a getter
+// The list is as followed
+// paused, currentTime, buffered, volume, poster, preload, error, seeking
+// seekable, ended, playbackRate, defaultPlaybackRate, played, networkState
+// readyState, videoWidth, videoHeight
+
+[
+/**
+ * Get the value of `paused` from the media element. `paused` indicates whether the media element
+ * is currently paused or not.
+ *
+ * @method Html5#paused
+ * @return {boolean}
+ * The value of `paused` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}
+ */
+'paused',
+/**
+ * Get the value of `currentTime` from the media element. `currentTime` indicates
+ * the current second that the media is at in playback.
+ *
+ * @method Html5#currentTime
+ * @return {number}
+ * The value of `currentTime` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}
+ */
+'currentTime',
+/**
+ * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`
+ * object that represents the parts of the media that are already downloaded and
+ * available for playback.
+ *
+ * @method Html5#buffered
+ * @return {TimeRange}
+ * The value of `buffered` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}
+ */
+'buffered',
+/**
+ * Get the value of `volume` from the media element. `volume` indicates
+ * the current playback volume of audio for a media. `volume` will be a value from 0
+ * (silent) to 1 (loudest and default).
+ *
+ * @method Html5#volume
+ * @return {number}
+ * The value of `volume` from the media element. Value will be between 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+'volume',
+/**
+ * Get the value of `poster` from the media element. `poster` indicates
+ * that the url of an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#poster
+ * @return {string}
+ * The value of `poster` from the media element. Value will be a url to an
+ * image.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}
+ */
+'poster',
+/**
+ * Get the value of `preload` from the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#preload
+ * @return {string}
+ * The value of `preload` from the media element. Will be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+'preload',
+/**
+ * Get the value of the `error` from the media element. `error` indicates any
+ * MediaError that may have occurred during playback. If error returns null there is no
+ * current error.
+ *
+ * @method Html5#error
+ * @return {MediaError|null}
+ * The value of `error` from the media element. Will be `MediaError` if there
+ * is a current error and null otherwise.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}
+ */
+'error',
+/**
+ * Get the value of `seeking` from the media element. `seeking` indicates whether the
+ * media is currently seeking to a new position or not.
+ *
+ * @method Html5#seeking
+ * @return {boolean}
+ * - The value of `seeking` from the media element.
+ * - True indicates that the media is currently seeking to a new position.
+ * - False indicates that the media is not seeking to a new position at this time.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}
+ */
+'seeking',
+/**
+ * Get the value of `seekable` from the media element. `seekable` returns a
+ * `TimeRange` object indicating ranges of time that can currently be `seeked` to.
+ *
+ * @method Html5#seekable
+ * @return {TimeRange}
+ * The value of `seekable` from the media element. A `TimeRange` object
+ * indicating the current ranges of time that can be seeked to.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}
+ */
+'seekable',
+/**
+ * Get the value of `ended` from the media element. `ended` indicates whether
+ * the media has reached the end or not.
+ *
+ * @method Html5#ended
+ * @return {boolean}
+ * - The value of `ended` from the media element.
+ * - True indicates that the media has ended.
+ * - False indicates that the media has not ended.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}
+ */
+'ended',
+/**
+ * Get the value of `playbackRate` from the media element. `playbackRate` indicates
+ * the rate at which the media is currently playing back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#playbackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+'playbackRate',
+/**
+ * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media is currently playing back. This value will not indicate the current
+ * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.
+ *
+ * Examples:
+ * - if defaultPlaybackRate is set to 2, media will play twice as fast.
+ * - if defaultPlaybackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.defaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+'defaultPlaybackRate',
+/**
+ * Get the value of `played` from the media element. `played` returns a `TimeRange`
+ * object representing points in the media timeline that have been played.
+ *
+ * @method Html5#played
+ * @return {TimeRange}
+ * The value of `played` from the media element. A `TimeRange` object indicating
+ * the ranges of time that have been played.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}
+ */
+'played',
+/**
+ * Get the value of `networkState` from the media element. `networkState` indicates
+ * the current network state. It returns an enumeration from the following list:
+ * - 0: NETWORK_EMPTY
+ * - 1: NETWORK_IDLE
+ * - 2: NETWORK_LOADING
+ * - 3: NETWORK_NO_SOURCE
+ *
+ * @method Html5#networkState
+ * @return {number}
+ * The value of `networkState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}
+ */
+'networkState',
+/**
+ * Get the value of `readyState` from the media element. `readyState` indicates
+ * the current state of the media element. It returns an enumeration from the
+ * following list:
+ * - 0: HAVE_NOTHING
+ * - 1: HAVE_METADATA
+ * - 2: HAVE_CURRENT_DATA
+ * - 3: HAVE_FUTURE_DATA
+ * - 4: HAVE_ENOUGH_DATA
+ *
+ * @method Html5#readyState
+ * @return {number}
+ * The value of `readyState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}
+ */
+'readyState',
+/**
+ * Get the value of `videoWidth` from the video element. `videoWidth` indicates
+ * the current width of the video in css pixels.
+ *
+ * @method Html5#videoWidth
+ * @return {number}
+ * The value of `videoWidth` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+'videoWidth',
+/**
+ * Get the value of `videoHeight` from the video element. `videoHeight` indicates
+ * the current height of the video in css pixels.
+ *
+ * @method Html5#videoHeight
+ * @return {number}
+ * The value of `videoHeight` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+'videoHeight'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop];
+ };
+}); // Wrap native properties with a setter in this format:
+// set + toTitleCase(name)
+// The list is as follows:
+// setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate
+
+[
+/**
+ * Set the value of `volume` on the media element. `volume` indicates the current
+ * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and
+ * so on.
+ *
+ * @method Html5#setVolume
+ * @param {number} percentAsDecimal
+ * The volume percent as a decimal. Valid range is from 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+'volume',
+/**
+ * Set the value of `src` on the media element. `src` indicates the current
+ * {@link Tech~SourceObject} for the media.
+ *
+ * @method Html5#setSrc
+ * @param {Tech~SourceObject} src
+ * The source object to set as the current source.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}
+ */
+'src',
+/**
+ * Set the value of `poster` on the media element. `poster` is the url to
+ * an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#setPoster
+ * @param {string} poster
+ * The url to an image that should be used as the `poster` for the media
+ * element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}
+ */
+'poster',
+/**
+ * Set the value of `preload` on the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#setPreload
+ * @param {string} preload
+ * The value of `preload` to set on the media element. Must be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+'preload',
+/**
+ * Set the value of `playbackRate` on the media element. `playbackRate` indicates
+ * the rate at which the media should play back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#setPlaybackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+'playbackRate',
+/**
+ * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media should play back upon initial startup. Changing this value
+ * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.
+ *
+ * Example Values:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.setDefaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}
+ */
+'defaultPlaybackRate'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+ };
+}); // wrap native functions with a function
+// The list is as follows:
+// pause, load, play
+
+[
+/**
+ * A wrapper around the media elements `pause` function. This will call the `HTML5`
+ * media elements `pause` function.
+ *
+ * @method Html5#pause
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}
+ */
+'pause',
+/**
+ * A wrapper around the media elements `load` function. This will call the `HTML5`s
+ * media element `load` function.
+ *
+ * @method Html5#load
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}
+ */
+'load',
+/**
+ * A wrapper around the media elements `play` function. This will call the `HTML5`s
+ * media element `play` function.
+ *
+ * @method Html5#play
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}
+ */
+'play'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop]();
+ };
+});
+Tech.withSourceHandlers(Html5);
+/**
+ * Native source handler for Html5, simply passes the source to the media element.
+ *
+ * @property {Tech~SourceObject} source
+ * The source object
+ *
+ * @property {Html5} tech
+ * The instance of the HTML5 tech.
+ */
+
+Html5.nativeSourceHandler = {};
+/**
+ * Check if the media element can play the given mime type.
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+
+Html5.nativeSourceHandler.canPlayType = function (type) {
+ // IE without MediaPlayer throws an error (#519)
+ try {
+ return Html5.TEST_VID.canPlayType(type);
+ } catch (e) {
+ return '';
+ }
+};
+/**
+ * Check if the media element can handle a source natively.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} [options]
+ * Options to be passed to the tech.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string).
+ */
+
+
+Html5.nativeSourceHandler.canHandleSource = function (source, options) {
+ // If a type was provided we should rely on that
+ if (source.type) {
+ return Html5.nativeSourceHandler.canPlayType(source.type); // If no type, fall back to checking 'video/[EXTENSION]'
+ } else if (source.src) {
+ var ext = getFileExtension(source.src);
+ return Html5.nativeSourceHandler.canPlayType("video/" + ext);
+ }
+
+ return '';
+};
+/**
+ * Pass the source to the native media element.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Html5} tech
+ * The instance of the Html5 tech
+ *
+ * @param {Object} [options]
+ * The options to pass to the source
+ */
+
+
+Html5.nativeSourceHandler.handleSource = function (source, tech, options) {
+ tech.setSrc(source.src);
+};
+/**
+ * A noop for the native dispose function, as cleanup is not needed.
+ */
+
+
+Html5.nativeSourceHandler.dispose = function () {}; // Register the native source handler
+
+
+Html5.registerSourceHandler(Html5.nativeSourceHandler);
+Tech.registerTech('Html5', Html5);
+
+// on the player when they happen
+
+var TECH_EVENTS_RETRIGGER = [
+/**
+ * Fired while the user agent is downloading media data.
+ *
+ * @event Player#progress
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Retrigger the `progress` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechProgress_
+ * @fires Player#progress
+ * @listens Tech#progress
+ */
+'progress',
+/**
+ * Fires when the loading of an audio/video is aborted.
+ *
+ * @event Player#abort
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Retrigger the `abort` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechAbort_
+ * @fires Player#abort
+ * @listens Tech#abort
+ */
+'abort',
+/**
+ * Fires when the browser is intentionally not getting media data.
+ *
+ * @event Player#suspend
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Retrigger the `suspend` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechSuspend_
+ * @fires Player#suspend
+ * @listens Tech#suspend
+ */
+'suspend',
+/**
+ * Fires when the current playlist is empty.
+ *
+ * @event Player#emptied
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Retrigger the `emptied` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechEmptied_
+ * @fires Player#emptied
+ * @listens Tech#emptied
+ */
+'emptied',
+/**
+ * Fires when the browser is trying to get media data, but data is not available.
+ *
+ * @event Player#stalled
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechStalled_
+ * @fires Player#stalled
+ * @listens Tech#stalled
+ */
+'stalled',
+/**
+ * Fires when the browser has loaded meta data for the audio/video.
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoadedmetadata_
+ * @fires Player#loadedmetadata
+ * @listens Tech#loadedmetadata
+ */
+'loadedmetadata',
+/**
+ * Fires when the browser has loaded the current frame of the audio/video.
+ *
+ * @event Player#loadeddata
+ * @type {event}
+ */
+
+/**
+ * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoaddeddata_
+ * @fires Player#loadeddata
+ * @listens Tech#loadeddata
+ */
+'loadeddata',
+/**
+ * Fires when the current playback position has changed.
+ *
+ * @event Player#timeupdate
+ * @type {event}
+ */
+
+/**
+ * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTimeUpdate_
+ * @fires Player#timeupdate
+ * @listens Tech#timeupdate
+ */
+'timeupdate',
+/**
+ * Fires when the video's intrinsic dimensions change
+ *
+ * @event Player#resize
+ * @type {event}
+ */
+
+/**
+ * Retrigger the `resize` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechResize_
+ * @fires Player#resize
+ * @listens Tech#resize
+ */
+'resize',
+/**
+ * Fires when the volume has been changed
+ *
+ * @event Player#volumechange
+ * @type {event}
+ */
+
+/**
+ * Retrigger the `volumechange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechVolumechange_
+ * @fires Player#volumechange
+ * @listens Tech#volumechange
+ */
+'volumechange',
+/**
+ * Fires when the text track has been changed
+ *
+ * @event Player#texttrackchange
+ * @type {event}
+ */
+
+/**
+ * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTexttrackchange_
+ * @fires Player#texttrackchange
+ * @listens Tech#texttrackchange
+ */
+'texttrackchange']; // events to queue when playback rate is zero
+// this is a hash for the sole purpose of mapping non-camel-cased event names
+// to camel-cased function names
+
+var TECH_EVENTS_QUEUE = {
+ canplay: 'CanPlay',
+ canplaythrough: 'CanPlayThrough',
+ playing: 'Playing',
+ seeked: 'Seeked'
+};
+var BREAKPOINT_ORDER = ['tiny', 'xsmall', 'small', 'medium', 'large', 'xlarge', 'huge'];
+var BREAKPOINT_CLASSES = {}; // grep: vjs-layout-tiny
+// grep: vjs-layout-x-small
+// grep: vjs-layout-small
+// grep: vjs-layout-medium
+// grep: vjs-layout-large
+// grep: vjs-layout-x-large
+// grep: vjs-layout-huge
+
+BREAKPOINT_ORDER.forEach(function (k) {
+ var v = k.charAt(0) === 'x' ? "x-" + k.substring(1) : k;
+ BREAKPOINT_CLASSES[k] = "vjs-layout-" + v;
+});
+var DEFAULT_BREAKPOINTS = {
+ tiny: 210,
+ xsmall: 320,
+ small: 425,
+ medium: 768,
+ large: 1440,
+ xlarge: 2560,
+ huge: Infinity
+};
+/**
+ * An instance of the `Player` class is created when any of the Video.js setup methods
+ * are used to initialize a video.
+ *
+ * After an instance has been created it can be accessed globally in two ways:
+ * 1. By calling `videojs('example_video_1');`
+ * 2. By using it directly via `videojs.players.example_video_1;`
+ *
+ * @extends Component
+ */
+
+var Player =
+/*#__PURE__*/
+function (_Component) {
+ _inheritsLoose(Player, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Element} tag
+ * The original video DOM element used for configuring options.
+ *
+ * @param {Object} [options]
+ * Object of option names and values.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Ready callback function.
+ */
+ function Player(tag, options, ready) {
+ var _this;
+
+ // Make sure tag ID exists
+ tag.id = tag.id || options.id || "vjs_video_" + newGUID(); // Set Options
+ // The options argument overrides options set in the video tag
+ // which overrides globally set options.
+ // This latter part coincides with the load order
+ // (tag must exist before Player)
+
+ options = assign(Player.getTagSettings(tag), options); // Delay the initialization of children because we need to set up
+ // player properties first, and can't use `this` before `super()`
+
+ options.initChildren = false; // Same with creating the element
+
+ options.createEl = false; // don't auto mixin the evented mixin
+
+ options.evented = false; // we don't want the player to report touch activity on itself
+ // see enableTouchActivity in Component
+
+ options.reportTouchActivity = false; // If language is not set, get the closest lang attribute
+
+ if (!options.language) {
+ if (typeof tag.closest === 'function') {
+ var closest = tag.closest('[lang]');
+
+ if (closest && closest.getAttribute) {
+ options.language = closest.getAttribute('lang');
+ }
+ } else {
+ var element = tag;
+
+ while (element && element.nodeType === 1) {
+ if (getAttributes(element).hasOwnProperty('lang')) {
+ options.language = element.getAttribute('lang');
+ break;
+ }
+
+ element = element.parentNode;
+ }
+ }
+ } // Run base component initializing with new options
+
+
+ _this = _Component.call(this, null, options, ready) || this; // Create bound methods for document listeners.
+
+ _this.boundDocumentFullscreenChange_ = bind(_assertThisInitialized(_this), _this.documentFullscreenChange_);
+ _this.boundFullWindowOnEscKey_ = bind(_assertThisInitialized(_this), _this.fullWindowOnEscKey); // create logger
+
+ _this.log = createLogger$1(_this.id_); // Hold our own reference to fullscreen api so it can be mocked in tests
+
+ _this.fsApi_ = FullscreenApi; // Tracks when a tech changes the poster
+
+ _this.isPosterFromTech_ = false; // Holds callback info that gets queued when playback rate is zero
+ // and a seek is happening
+
+ _this.queuedCallbacks_ = []; // Turn off API access because we're loading a new tech that might load asynchronously
+
+ _this.isReady_ = false; // Init state hasStarted_
+
+ _this.hasStarted_ = false; // Init state userActive_
+
+ _this.userActive_ = false; // if the global option object was accidentally blown away by
+ // someone, bail early with an informative error
+
+ if (!_this.options_ || !_this.options_.techOrder || !_this.options_.techOrder.length) {
+ throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');
+ } // Store the original tag used to set options
+
+
+ _this.tag = tag; // Store the tag attributes used to restore html5 element
+
+ _this.tagAttributes = tag && getAttributes(tag); // Update current language
+
+ _this.language(_this.options_.language); // Update Supported Languages
+
+
+ if (options.languages) {
+ // Normalise player option languages to lowercase
+ var languagesToLower = {};
+ Object.getOwnPropertyNames(options.languages).forEach(function (name) {
+ languagesToLower[name.toLowerCase()] = options.languages[name];
+ });
+ _this.languages_ = languagesToLower;
+ } else {
+ _this.languages_ = Player.prototype.options_.languages;
+ }
+
+ _this.resetCache_(); // Set poster
+
+
+ _this.poster_ = options.poster || ''; // Set controls
+
+ _this.controls_ = !!options.controls; // Original tag settings stored in options
+ // now remove immediately so native controls don't flash.
+ // May be turned back on by HTML5 tech if nativeControlsForTouch is true
+
+ tag.controls = false;
+ tag.removeAttribute('controls');
+ _this.changingSrc_ = false;
+ _this.playCallbacks_ = [];
+ _this.playTerminatedQueue_ = []; // the attribute overrides the option
+
+ if (tag.hasAttribute('autoplay')) {
+ _this.autoplay(true);
+ } else {
+ // otherwise use the setter to validate and
+ // set the correct value.
+ _this.autoplay(_this.options_.autoplay);
+ } // check plugins
+
+
+ if (options.plugins) {
+ Object.keys(options.plugins).forEach(function (name) {
+ if (typeof _this[name] !== 'function') {
+ throw new Error("plugin \"" + name + "\" does not exist");
+ }
+ });
+ }
+ /*
+ * Store the internal state of scrubbing
+ *
+ * @private
+ * @return {Boolean} True if the user is scrubbing
+ */
+
+
+ _this.scrubbing_ = false;
+ _this.el_ = _this.createEl(); // Make this an evented object and use `el_` as its event bus.
+
+ evented(_assertThisInitialized(_this), {
+ eventBusKey: 'el_'
+ });
+
+ if (_this.fluid_) {
+ _this.on('playerreset', _this.updateStyleEl_);
+ } // We also want to pass the original player options to each component and plugin
+ // as well so they don't need to reach back into the player for options later.
+ // We also need to do another copy of this.options_ so we don't end up with
+ // an infinite loop.
+
+
+ var playerOptionsCopy = mergeOptions(_this.options_); // Load plugins
+
+ if (options.plugins) {
+ Object.keys(options.plugins).forEach(function (name) {
+ _this[name](options.plugins[name]);
+ });
+ }
+
+ _this.options_.playerOptions = playerOptionsCopy;
+ _this.middleware_ = [];
+
+ _this.initChildren(); // Set isAudio based on whether or not an audio tag was used
+
+
+ _this.isAudio(tag.nodeName.toLowerCase() === 'audio'); // Update controls className. Can't do this when the controls are initially
+ // set because the element doesn't exist yet.
+
+
+ if (_this.controls()) {
+ _this.addClass('vjs-controls-enabled');
+ } else {
+ _this.addClass('vjs-controls-disabled');
+ } // Set ARIA label and region role depending on player type
+
+
+ _this.el_.setAttribute('role', 'region');
+
+ if (_this.isAudio()) {
+ _this.el_.setAttribute('aria-label', _this.localize('Audio Player'));
+ } else {
+ _this.el_.setAttribute('aria-label', _this.localize('Video Player'));
+ }
+
+ if (_this.isAudio()) {
+ _this.addClass('vjs-audio');
+ }
+
+ if (_this.flexNotSupported_()) {
+ _this.addClass('vjs-no-flex');
+ } // TODO: Make this smarter. Toggle user state between touching/mousing
+ // using events, since devices can have both touch and mouse events.
+ // TODO: Make this check be performed again when the window switches between monitors
+ // (See https://github.com/videojs/video.js/issues/5683)
+
+
+ if (TOUCH_ENABLED) {
+ _this.addClass('vjs-touch-enabled');
+ } // iOS Safari has broken hover handling
+
+
+ if (!IS_IOS) {
+ _this.addClass('vjs-workinghover');
+ } // Make player easily findable by ID
+
+
+ Player.players[_this.id_] = _assertThisInitialized(_this); // Add a major version class to aid css in plugins
+
+ var majorVersion = version.split('.')[0];
+
+ _this.addClass("vjs-v" + majorVersion); // When the player is first initialized, trigger activity so components
+ // like the control bar show themselves if needed
+
+
+ _this.userActive(true);
+
+ _this.reportUserActivity();
+
+ _this.one('play', _this.listenForUserActivity_);
+
+ _this.on('stageclick', _this.handleStageClick_);
+
+ _this.on('keydown', _this.handleKeyDown);
+
+ _this.breakpoints(_this.options_.breakpoints);
+
+ _this.responsive(_this.options_.responsive);
+
+ return _this;
+ }
+ /**
+ * Destroys the video player and does any necessary cleanup.
+ *
+ * This is especially helpful if you are dynamically adding and removing videos
+ * to/from the DOM.
+ *
+ * @fires Player#dispose
+ */
+
+
+ var _proto = Player.prototype;
+
+ _proto.dispose = function dispose() {
+ var _this2 = this;
+
+ /**
+ * Called when the player is being disposed of.
+ *
+ * @event Player#dispose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('dispose'); // prevent dispose from being called twice
+
+ this.off('dispose'); // Make sure all player-specific document listeners are unbound. This is
+
+ off(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);
+ off(document, 'keydown', this.boundFullWindowOnEscKey_);
+
+ if (this.styleEl_ && this.styleEl_.parentNode) {
+ this.styleEl_.parentNode.removeChild(this.styleEl_);
+ this.styleEl_ = null;
+ } // Kill reference to this player
+
+
+ Player.players[this.id_] = null;
+
+ if (this.tag && this.tag.player) {
+ this.tag.player = null;
+ }
+
+ if (this.el_ && this.el_.player) {
+ this.el_.player = null;
+ }
+
+ if (this.tech_) {
+ this.tech_.dispose();
+ this.isPosterFromTech_ = false;
+ this.poster_ = '';
+ }
+
+ if (this.playerElIngest_) {
+ this.playerElIngest_ = null;
+ }
+
+ if (this.tag) {
+ this.tag = null;
+ }
+
+ clearCacheForPlayer(this); // remove all event handlers for track lists
+ // all tracks and track listeners are removed on
+ // tech dispose
+
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ var list = _this2[props.getterName](); // if it is not a native list
+ // we have to manually remove event listeners
+
+
+ if (list && list.off) {
+ list.off();
+ }
+ }); // the actual .el_ is removed here
+
+ _Component.prototype.dispose.call(this);
+ }
+ /**
+ * Create the `Player`'s DOM element.
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+ ;
+
+ _proto.createEl = function createEl() {
+ var tag = this.tag;
+ var el;
+ var playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');
+ var divEmbed = this.tag.tagName.toLowerCase() === 'video-js';
+
+ if (playerElIngest) {
+ el = this.el_ = tag.parentNode;
+ } else if (!divEmbed) {
+ el = this.el_ = _Component.prototype.createEl.call(this, 'div');
+ } // Copy over all the attributes from the tag, including ID and class
+ // ID will now reference player box, not the video tag
+
+
+ var attrs = getAttributes(tag);
+
+ if (divEmbed) {
+ el = this.el_ = tag;
+ tag = this.tag = document.createElement('video');
+
+ while (el.children.length) {
+ tag.appendChild(el.firstChild);
+ }
+
+ if (!hasClass(el, 'video-js')) {
+ addClass(el, 'video-js');
+ }
+
+ el.appendChild(tag);
+ playerElIngest = this.playerElIngest_ = el; // move properties over from our custom `video-js` element
+ // to our new `video` element. This will move things like
+ // `src` or `controls` that were set via js before the player
+ // was initialized.
+
+ Object.keys(el).forEach(function (k) {
+ try {
+ tag[k] = el[k];
+ } catch (e) {// we got a a property like outerHTML which we can't actually copy, ignore it
+ }
+ });
+ } // set tabindex to -1 to remove the video element from the focus order
+
+
+ tag.setAttribute('tabindex', '-1');
+ attrs.tabindex = '-1'; // Workaround for #4583 (JAWS+IE doesn't announce BPB or play button), and
+ // for the same issue with Chrome (on Windows) with JAWS.
+ // See https://github.com/FreedomScientific/VFO-standards-support/issues/78
+ // Note that we can't detect if JAWS is being used, but this ARIA attribute
+ // doesn't change behavior of IE11 or Chrome if JAWS is not being used
+
+ if (IE_VERSION || IS_CHROME && IS_WINDOWS) {
+ tag.setAttribute('role', 'application');
+ attrs.role = 'application';
+ } // Remove width/height attrs from tag so CSS can make it 100% width/height
+
+
+ tag.removeAttribute('width');
+ tag.removeAttribute('height');
+
+ if ('width' in attrs) {
+ delete attrs.width;
+ }
+
+ if ('height' in attrs) {
+ delete attrs.height;
+ }
+
+ Object.getOwnPropertyNames(attrs).forEach(function (attr) {
+ // don't copy over the class attribute to the player element when we're in a div embed
+ // the class is already set up properly in the divEmbed case
+ // and we want to make sure that the `video-js` class doesn't get lost
+ if (!(divEmbed && attr === 'class')) {
+ el.setAttribute(attr, attrs[attr]);
+ }
+
+ if (divEmbed) {
+ tag.setAttribute(attr, attrs[attr]);
+ }
+ }); // Update tag id/class for use as HTML5 playback tech
+ // Might think we should do this after embedding in container so .vjs-tech class
+ // doesn't flash 100% width/height, but class only applies with .video-js parent
+
+ tag.playerId = tag.id;
+ tag.id += '_html5_api';
+ tag.className = 'vjs-tech'; // Make player findable on elements
+
+ tag.player = el.player = this; // Default state of video is paused
+
+ this.addClass('vjs-paused'); // Add a style element in the player that we'll use to set the width/height
+ // of the player in a way that's still overrideable by CSS, just like the
+ // video element
+
+ if (window$1.VIDEOJS_NO_DYNAMIC_STYLE !== true) {
+ this.styleEl_ = createStyleElement('vjs-styles-dimensions');
+ var defaultsStyleEl = $('.vjs-styles-defaults');
+ var head = $('head');
+ head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);
+ }
+
+ this.fill_ = false;
+ this.fluid_ = false; // Pass in the width/height/aspectRatio options which will update the style el
+
+ this.width(this.options_.width);
+ this.height(this.options_.height);
+ this.fill(this.options_.fill);
+ this.fluid(this.options_.fluid);
+ this.aspectRatio(this.options_.aspectRatio); // Hide any links within the video/audio tag,
+ // because IE doesn't hide them completely from screen readers.
+
+ var links = tag.getElementsByTagName('a');
+
+ for (var i = 0; i < links.length; i++) {
+ var linkEl = links.item(i);
+ addClass(linkEl, 'vjs-hidden');
+ linkEl.setAttribute('hidden', 'hidden');
+ } // insertElFirst seems to cause the networkState to flicker from 3 to 2, so
+ // keep track of the original for later so we can know if the source originally failed
+
+
+ tag.initNetworkState_ = tag.networkState; // Wrap video tag in div (el/box) container
+
+ if (tag.parentNode && !playerElIngest) {
+ tag.parentNode.insertBefore(el, tag);
+ } // insert the tag as the first child of the player element
+ // then manually add it to the children array so that this.addChild
+ // will work properly for other components
+ //
+ // Breaks iPhone, fixed in HTML5 setup.
+
+
+ prependTo(tag, el);
+ this.children_.unshift(tag); // Set lang attr on player to ensure CSS :lang() in consistent with player
+ // if it's been set to something different to the doc
+
+ this.el_.setAttribute('lang', this.language_);
+ this.el_ = el;
+ return el;
+ }
+ /**
+ * A getter/setter for the `Player`'s width. Returns the player's configured value.
+ * To get the current width use `currentWidth()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s width to.
+ *
+ * @return {number}
+ * The current width of the `Player` when getting.
+ */
+ ;
+
+ _proto.width = function width(value) {
+ return this.dimension('width', value);
+ }
+ /**
+ * A getter/setter for the `Player`'s height. Returns the player's configured value.
+ * To get the current height use `currentheight()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s heigth to.
+ *
+ * @return {number}
+ * The current height of the `Player` when getting.
+ */
+ ;
+
+ _proto.height = function height(value) {
+ return this.dimension('height', value);
+ }
+ /**
+ * A getter/setter for the `Player`'s width & height.
+ *
+ * @param {string} dimension
+ * This string can be:
+ * - 'width'
+ * - 'height'
+ *
+ * @param {number} [value]
+ * Value for dimension specified in the first argument.
+ *
+ * @return {number}
+ * The dimension arguments value when getting (width/height).
+ */
+ ;
+
+ _proto.dimension = function dimension(_dimension, value) {
+ var privDimension = _dimension + '_';
+
+ if (value === undefined) {
+ return this[privDimension] || 0;
+ }
+
+ if (value === '') {
+ // If an empty string is given, reset the dimension to be automatic
+ this[privDimension] = undefined;
+ this.updateStyleEl_();
+ return;
+ }
+
+ var parsedVal = parseFloat(value);
+
+ if (isNaN(parsedVal)) {
+ log.error("Improper value \"" + value + "\" supplied for for " + _dimension);
+ return;
+ }
+
+ this[privDimension] = parsedVal;
+ this.updateStyleEl_();
+ }
+ /**
+ * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.
+ *
+ * Turning this on will turn off fill mode.
+ *
+ * @param {boolean} [bool]
+ * - A value of true adds the class.
+ * - A value of false removes the class.
+ * - No value will be a getter.
+ *
+ * @return {boolean|undefined}
+ * - The value of fluid when getting.
+ * - `undefined` when setting.
+ */
+ ;
+
+ _proto.fluid = function fluid(bool) {
+ if (bool === undefined) {
+ return !!this.fluid_;
+ }
+
+ this.fluid_ = !!bool;
+
+ if (isEvented(this)) {
+ this.off('playerreset', this.updateStyleEl_);
+ }
+
+ if (bool) {
+ this.addClass('vjs-fluid');
+ this.fill(false);
+ addEventedCallback(function () {
+ this.on('playerreset', this.updateStyleEl_);
+ });
+ } else {
+ this.removeClass('vjs-fluid');
+ }
+
+ this.updateStyleEl_();
+ }
+ /**
+ * A getter/setter/toggler for the vjs-fill `className` on the `Player`.
+ *
+ * Turning this on will turn off fluid mode.
+ *
+ * @param {boolean} [bool]
+ * - A value of true adds the class.
+ * - A value of false removes the class.
+ * - No value will be a getter.
+ *
+ * @return {boolean|undefined}
+ * - The value of fluid when getting.
+ * - `undefined` when setting.
+ */
+ ;
+
+ _proto.fill = function fill(bool) {
+ if (bool === undefined) {
+ return !!this.fill_;
+ }
+
+ this.fill_ = !!bool;
+
+ if (bool) {
+ this.addClass('vjs-fill');
+ this.fluid(false);
+ } else {
+ this.removeClass('vjs-fill');
+ }
+ }
+ /**
+ * Get/Set the aspect ratio
+ *
+ * @param {string} [ratio]
+ * Aspect ratio for player
+ *
+ * @return {string|undefined}
+ * returns the current aspect ratio when getting
+ */
+
+ /**
+ * A getter/setter for the `Player`'s aspect ratio.
+ *
+ * @param {string} [ratio]
+ * The value to set the `Player's aspect ratio to.
+ *
+ * @return {string|undefined}
+ * - The current aspect ratio of the `Player` when getting.
+ * - undefined when setting
+ */
+ ;
+
+ _proto.aspectRatio = function aspectRatio(ratio) {
+ if (ratio === undefined) {
+ return this.aspectRatio_;
+ } // Check for width:height format
+
+
+ if (!/^\d+\:\d+$/.test(ratio)) {
+ throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');
+ }
+
+ this.aspectRatio_ = ratio; // We're assuming if you set an aspect ratio you want fluid mode,
+ // because in fixed mode you could calculate width and height yourself.
+
+ this.fluid(true);
+ this.updateStyleEl_();
+ }
+ /**
+ * Update styles of the `Player` element (height, width and aspect ratio).
+ *
+ * @private
+ * @listens Tech#loadedmetadata
+ */
+ ;
+
+ _proto.updateStyleEl_ = function updateStyleEl_() {
+ if (window$1.VIDEOJS_NO_DYNAMIC_STYLE === true) {
+ var _width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;
+
+ var _height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;
+
+ var techEl = this.tech_ && this.tech_.el();
+
+ if (techEl) {
+ if (_width >= 0) {
+ techEl.width = _width;
+ }
+
+ if (_height >= 0) {
+ techEl.height = _height;
+ }
+ }
+
+ return;
+ }
+
+ var width;
+ var height;
+ var aspectRatio;
+ var idClass; // The aspect ratio is either used directly or to calculate width and height.
+
+ if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {
+ // Use any aspectRatio that's been specifically set
+ aspectRatio = this.aspectRatio_;
+ } else if (this.videoWidth() > 0) {
+ // Otherwise try to get the aspect ratio from the video metadata
+ aspectRatio = this.videoWidth() + ':' + this.videoHeight();
+ } else {
+ // Or use a default. The video element's is 2:1, but 16:9 is more common.
+ aspectRatio = '16:9';
+ } // Get the ratio as a decimal we can use to calculate dimensions
+
+
+ var ratioParts = aspectRatio.split(':');
+ var ratioMultiplier = ratioParts[1] / ratioParts[0];
+
+ if (this.width_ !== undefined) {
+ // Use any width that's been specifically set
+ width = this.width_;
+ } else if (this.height_ !== undefined) {
+ // Or calulate the width from the aspect ratio if a height has been set
+ width = this.height_ / ratioMultiplier;
+ } else {
+ // Or use the video's metadata, or use the video el's default of 300
+ width = this.videoWidth() || 300;
+ }
+
+ if (this.height_ !== undefined) {
+ // Use any height that's been specifically set
+ height = this.height_;
+ } else {
+ // Otherwise calculate the height from the ratio and the width
+ height = width * ratioMultiplier;
+ } // Ensure the CSS class is valid by starting with an alpha character
+
+
+ if (/^[^a-zA-Z]/.test(this.id())) {
+ idClass = 'dimensions-' + this.id();
+ } else {
+ idClass = this.id() + '-dimensions';
+ } // Ensure the right class is still on the player for the style element
+
+
+ this.addClass(idClass);
+ setTextContent(this.styleEl_, "\n ." + idClass + " {\n width: " + width + "px;\n height: " + height + "px;\n }\n\n ." + idClass + ".vjs-fluid {\n padding-top: " + ratioMultiplier * 100 + "%;\n }\n ");
+ }
+ /**
+ * Load/Create an instance of playback {@link Tech} including element
+ * and API methods. Then append the `Tech` element in `Player` as a child.
+ *
+ * @param {string} techName
+ * name of the playback technology
+ *
+ * @param {string} source
+ * video source
+ *
+ * @private
+ */
+ ;
+
+ _proto.loadTech_ = function loadTech_(techName, source) {
+ var _this3 = this;
+
+ // Pause and remove current playback technology
+ if (this.tech_) {
+ this.unloadTech_();
+ }
+
+ var titleTechName = toTitleCase(techName);
+ var camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1); // get rid of the HTML5 video tag as soon as we are using another tech
+
+ if (titleTechName !== 'Html5' && this.tag) {
+ Tech.getTech('Html5').disposeMediaElement(this.tag);
+ this.tag.player = null;
+ this.tag = null;
+ }
+
+ this.techName_ = titleTechName; // Turn off API access because we're loading a new tech that might load asynchronously
+
+ this.isReady_ = false; // if autoplay is a string we pass false to the tech
+ // because the player is going to handle autoplay on `loadstart`
+
+ var autoplay = typeof this.autoplay() === 'string' ? false : this.autoplay(); // Grab tech-specific options from player options and add source and parent element to use.
+
+ var techOptions = {
+ source: source,
+ autoplay: autoplay,
+ 'nativeControlsForTouch': this.options_.nativeControlsForTouch,
+ 'playerId': this.id(),
+ 'techId': this.id() + "_" + camelTechName + "_api",
+ 'playsinline': this.options_.playsinline,
+ 'preload': this.options_.preload,
+ 'loop': this.options_.loop,
+ 'muted': this.options_.muted,
+ 'poster': this.poster(),
+ 'language': this.language(),
+ 'playerElIngest': this.playerElIngest_ || false,
+ 'vtt.js': this.options_['vtt.js'],
+ 'canOverridePoster': !!this.options_.techCanOverridePoster,
+ 'enableSourceset': this.options_.enableSourceset,
+ 'Promise': this.options_.Promise
+ };
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+ techOptions[props.getterName] = _this3[props.privateName];
+ });
+ assign(techOptions, this.options_[titleTechName]);
+ assign(techOptions, this.options_[camelTechName]);
+ assign(techOptions, this.options_[techName.toLowerCase()]);
+
+ if (this.tag) {
+ techOptions.tag = this.tag;
+ }
+
+ if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {
+ techOptions.startTime = this.cache_.currentTime;
+ } // Initialize tech instance
+
+
+ var TechClass = Tech.getTech(techName);
+
+ if (!TechClass) {
+ throw new Error("No Tech named '" + titleTechName + "' exists! '" + titleTechName + "' should be registered using videojs.registerTech()'");
+ }
+
+ this.tech_ = new TechClass(techOptions); // player.triggerReady is always async, so don't need this to be async
+
+ this.tech_.ready(bind(this, this.handleTechReady_), true);
+ textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_); // Listen to all HTML5-defined events and trigger them on the player
+
+ TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ _this3.on(_this3.tech_, event, _this3["handleTech" + toTitleCase(event) + "_"]);
+ });
+ Object.keys(TECH_EVENTS_QUEUE).forEach(function (event) {
+ _this3.on(_this3.tech_, event, function (eventObj) {
+ if (_this3.tech_.playbackRate() === 0 && _this3.tech_.seeking()) {
+ _this3.queuedCallbacks_.push({
+ callback: _this3["handleTech" + TECH_EVENTS_QUEUE[event] + "_"].bind(_this3),
+ event: eventObj
+ });
+
+ return;
+ }
+
+ _this3["handleTech" + TECH_EVENTS_QUEUE[event] + "_"](eventObj);
+ });
+ });
+ this.on(this.tech_, 'loadstart', this.handleTechLoadStart_);
+ this.on(this.tech_, 'sourceset', this.handleTechSourceset_);
+ this.on(this.tech_, 'waiting', this.handleTechWaiting_);
+ this.on(this.tech_, 'ended', this.handleTechEnded_);
+ this.on(this.tech_, 'seeking', this.handleTechSeeking_);
+ this.on(this.tech_, 'play', this.handleTechPlay_);
+ this.on(this.tech_, 'firstplay', this.handleTechFirstPlay_);
+ this.on(this.tech_, 'pause', this.handleTechPause_);
+ this.on(this.tech_, 'durationchange', this.handleTechDurationChange_);
+ this.on(this.tech_, 'fullscreenchange', this.handleTechFullscreenChange_);
+ this.on(this.tech_, 'enterpictureinpicture', this.handleTechEnterPictureInPicture_);
+ this.on(this.tech_, 'leavepictureinpicture', this.handleTechLeavePictureInPicture_);
+ this.on(this.tech_, 'error', this.handleTechError_);
+ this.on(this.tech_, 'loadedmetadata', this.updateStyleEl_);
+ this.on(this.tech_, 'posterchange', this.handleTechPosterChange_);
+ this.on(this.tech_, 'textdata', this.handleTechTextData_);
+ this.on(this.tech_, 'ratechange', this.handleTechRateChange_);
+ this.usingNativeControls(this.techGet_('controls'));
+
+ if (this.controls() && !this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ } // Add the tech element in the DOM if it was not already there
+ // Make sure to not insert the original video element if using Html5
+
+
+ if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {
+ prependTo(this.tech_.el(), this.el());
+ } // Get rid of the original video tag reference after the first tech is loaded
+
+
+ if (this.tag) {
+ this.tag.player = null;
+ this.tag = null;
+ }
+ }
+ /**
+ * Unload and dispose of the current playback {@link Tech}.
+ *
+ * @private
+ */
+ ;
+
+ _proto.unloadTech_ = function unloadTech_() {
+ var _this4 = this;
+
+ // Save the current text tracks so that we can reuse the same text tracks with the next tech
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+ _this4[props.privateName] = _this4[props.getterName]();
+ });
+ this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);
+ this.isReady_ = false;
+ this.tech_.dispose();
+ this.tech_ = false;
+
+ if (this.isPosterFromTech_) {
+ this.poster_ = '';
+ this.trigger('posterchange');
+ }
+
+ this.isPosterFromTech_ = false;
+ }
+ /**
+ * Return a reference to the current {@link Tech}.
+ * It will print a warning by default about the danger of using the tech directly
+ * but any argument that is passed in will silence the warning.
+ *
+ * @param {*} [safety]
+ * Anything passed in to silence the warning
+ *
+ * @return {Tech}
+ * The Tech
+ */
+ ;
+
+ _proto.tech = function tech(safety) {
+ if (safety === undefined) {
+ log.warn('Using the tech directly can be dangerous. I hope you know what you\'re doing.\n' + 'See https://github.com/videojs/video.js/issues/2617 for more info.\n');
+ }
+
+ return this.tech_;
+ }
+ /**
+ * Set up click and touch listeners for the playback element
+ *
+ * - On desktops: a click on the video itself will toggle playback
+ * - On mobile devices: a click on the video toggles controls
+ * which is done by toggling the user state between active and
+ * inactive
+ * - A tap can signal that a user has become active or has become inactive
+ * e.g. a quick tap on an iPhone movie should reveal the controls. Another
+ * quick tap should hide them again (signaling the user is in an inactive
+ * viewing state)
+ * - In addition to this, we still want the user to be considered inactive after
+ * a few seconds of inactivity.
+ *
+ * > Note: the only part of iOS interaction we can't mimic with this setup
+ * is a touch and hold on the video element counting as activity in order to
+ * keep the controls showing, but that shouldn't be an issue. A touch and hold
+ * on any controls will still keep the user active
+ *
+ * @private
+ */
+ ;
+
+ _proto.addTechControlsListeners_ = function addTechControlsListeners_() {
+ // Make sure to remove all the previous listeners in case we are called multiple times.
+ this.removeTechControlsListeners_(); // Some browsers (Chrome & IE) don't trigger a click on a flash swf, but do
+ // trigger mousedown/up.
+ // http://stackoverflow.com/questions/1444562/javascript-onclick-event-over-flash-object
+ // Any touch events are set to block the mousedown event from happening
+
+ this.on(this.tech_, 'mouseup', this.handleTechClick_);
+ this.on(this.tech_, 'dblclick', this.handleTechDoubleClick_); // If the controls were hidden we don't want that to change without a tap event
+ // so we'll check if the controls were already showing before reporting user
+ // activity
+
+ this.on(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.on(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.on(this.tech_, 'touchend', this.handleTechTouchEnd_); // The tap listener needs to come after the touchend listener because the tap
+ // listener cancels out any reportedUserActivity when setting userActive(false)
+
+ this.on(this.tech_, 'tap', this.handleTechTap_);
+ }
+ /**
+ * Remove the listeners used for click and tap controls. This is needed for
+ * toggling to controls disabled, where a tap/touch should do nothing.
+ *
+ * @private
+ */
+ ;
+
+ _proto.removeTechControlsListeners_ = function removeTechControlsListeners_() {
+ // We don't want to just use `this.off()` because there might be other needed
+ // listeners added by techs that extend this.
+ this.off(this.tech_, 'tap', this.handleTechTap_);
+ this.off(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.off(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.off(this.tech_, 'touchend', this.handleTechTouchEnd_);
+ this.off(this.tech_, 'mouseup', this.handleTechClick_);
+ this.off(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+ }
+ /**
+ * Player waits for the tech to be ready
+ *
+ * @private
+ */
+ ;
+
+ _proto.handleTechReady_ = function handleTechReady_() {
+ this.triggerReady(); // Keep the same volume as before
+
+ if (this.cache_.volume) {
+ this.techCall_('setVolume', this.cache_.volume);
+ } // Look if the tech found a higher resolution poster while loading
+
+
+ this.handleTechPosterChange_(); // Update the duration if available
+
+ this.handleTechDurationChange_();
+ }
+ /**
+ * Retrigger the `loadstart` event that was triggered by the {@link Tech}. This
+ * function will also trigger {@link Player#firstplay} if it is the first loadstart
+ * for a video.
+ *
+ * @fires Player#loadstart
+ * @fires Player#firstplay
+ * @listens Tech#loadstart
+ * @private
+ */
+ ;
+
+ _proto.handleTechLoadStart_ = function handleTechLoadStart_() {
+ // TODO: Update to use `emptied` event instead. See #1277.
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-seeking'); // reset the error state
+
+ this.error(null); // Update the duration
+
+ this.handleTechDurationChange_(); // If it's already playing we want to trigger a firstplay event now.
+ // The firstplay event relies on both the play and loadstart events
+ // which can happen in any order for a new source
+
+ if (!this.paused()) {
+ /**
+ * Fired when the user agent begins looking for media data
+ *
+ * @event Player#loadstart
+ * @type {EventTarget~Event}
+ */
+ this.trigger('loadstart');
+ this.trigger('firstplay');
+ } else {
+ // reset the hasStarted state
+ this.hasStarted(false);
+ this.trigger('loadstart');
+ } // autoplay happens after loadstart for the browser,
+ // so we mimic that behavior
+
+
+ this.manualAutoplay_(this.autoplay());
+ }
+ /**
+ * Handle autoplay string values, rather than the typical boolean
+ * values that should be handled by the tech. Note that this is not
+ * part of any specification. Valid values and what they do can be
+ * found on the autoplay getter at Player#autoplay()
+ */
+ ;
+
+ _proto.manualAutoplay_ = function manualAutoplay_(type) {
+ var _this5 = this;
+
+ if (!this.tech_ || typeof type !== 'string') {
+ return;
+ }
+
+ var muted = function muted() {
+ var previouslyMuted = _this5.muted();
+
+ _this5.muted(true);
+
+ var restoreMuted = function restoreMuted() {
+ _this5.muted(previouslyMuted);
+ }; // restore muted on play terminatation
+
+
+ _this5.playTerminatedQueue_.push(restoreMuted);
+
+ var mutedPromise = _this5.play();
+
+ if (!isPromise(mutedPromise)) {
+ return;
+ }
+
+ return mutedPromise["catch"](restoreMuted);
+ };
+
+ var promise; // if muted defaults to true
+ // the only thing we can do is call play
+
+ if (type === 'any' && this.muted() !== true) {
+ promise = this.play();
+
+ if (isPromise(promise)) {
+ promise = promise["catch"](muted);
+ }
+ } else if (type === 'muted' && this.muted() !== true) {
+ promise = muted();
+ } else {
+ promise = this.play();
+ }
+
+ if (!isPromise(promise)) {
+ return;
+ }
+
+ return promise.then(function () {
+ _this5.trigger({
+ type: 'autoplay-success',
+ autoplay: type
+ });
+ })["catch"](function (e) {
+ _this5.trigger({
+ type: 'autoplay-failure',
+ autoplay: type
+ });
+ });
+ }
+ /**
+ * Update the internal source caches so that we return the correct source from
+ * `src()`, `currentSource()`, and `currentSources()`.
+ *
+ * > Note: `currentSources` will not be updated if the source that is passed in exists
+ * in the current `currentSources` cache.
+ *
+ *
+ * @param {Tech~SourceObject} srcObj
+ * A string or object source to update our caches to.
+ */
+ ;
+
+ _proto.updateSourceCaches_ = function updateSourceCaches_(srcObj) {
+ if (srcObj === void 0) {
+ srcObj = '';
+ }
+
+ var src = srcObj;
+ var type = '';
+
+ if (typeof src !== 'string') {
+ src = srcObj.src;
+ type = srcObj.type;
+ } // make sure all the caches are set to default values
+ // to prevent null checking
+
+
+ this.cache_.source = this.cache_.source || {};
+ this.cache_.sources = this.cache_.sources || []; // try to get the type of the src that was passed in
+
+ if (src && !type) {
+ type = findMimetype(this, src);
+ } // update `currentSource` cache always
+
+
+ this.cache_.source = mergeOptions({}, srcObj, {
+ src: src,
+ type: type
+ });
+ var matchingSources = this.cache_.sources.filter(function (s) {
+ return s.src && s.src === src;
+ });
+ var sourceElSources = [];
+ var sourceEls = this.$$('source');
+ var matchingSourceEls = [];
+
+ for (var i = 0; i < sourceEls.length; i++) {
+ var sourceObj = getAttributes(sourceEls[i]);
+ sourceElSources.push(sourceObj);
+
+ if (sourceObj.src && sourceObj.src === src) {
+ matchingSourceEls.push(sourceObj.src);
+ }
+ } // if we have matching source els but not matching sources
+ // the current source cache is not up to date
+
+
+ if (matchingSourceEls.length && !matchingSources.length) {
+ this.cache_.sources = sourceElSources; // if we don't have matching source or source els set the
+ // sources cache to the `currentSource` cache
+ } else if (!matchingSources.length) {
+ this.cache_.sources = [this.cache_.source];
+ } // update the tech `src` cache
+
+
+ this.cache_.src = src;
+ }
+ /**
+ * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}
+ * causing the media element to reload.
+ *
+ * It will fire for the initial source and each subsequent source.
+ * This event is a custom event from Video.js and is triggered by the {@link Tech}.
+ *
+ * The event object for this event contains a `src` property that will contain the source
+ * that was available when the event was triggered. This is generally only necessary if Video.js
+ * is switching techs while the source was being changed.
+ *
+ * It is also fired when `load` is called on the player (or media element)
+ * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}
+ * says that the resource selection algorithm needs to be aborted and restarted.
+ * In this case, it is very likely that the `src` property will be set to the
+ * empty string `""` to indicate we do not know what the source will be but
+ * that it is changing.
+ *
+ * *This event is currently still experimental and may change in minor releases.*
+ * __To use this, pass `enableSourceset` option to the player.__
+ *
+ * @event Player#sourceset
+ * @type {EventTarget~Event}
+ * @prop {string} src
+ * The source url available when the `sourceset` was triggered.
+ * It will be an empty string if we cannot know what the source is
+ * but know that the source will change.
+ */
+
+ /**
+ * Retrigger the `sourceset` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#sourceset
+ * @listens Tech#sourceset
+ * @private
+ */
+ ;
+
+ _proto.handleTechSourceset_ = function handleTechSourceset_(event) {
+ var _this6 = this;
+
+ // only update the source cache when the source
+ // was not updated using the player api
+ if (!this.changingSrc_) {
+ var updateSourceCaches = function updateSourceCaches(src) {
+ return _this6.updateSourceCaches_(src);
+ };
+
+ var playerSrc = this.currentSource().src;
+ var eventSrc = event.src; // if we have a playerSrc that is not a blob, and a tech src that is a blob
+
+ if (playerSrc && !/^blob:/.test(playerSrc) && /^blob:/.test(eventSrc)) {
+ // if both the tech source and the player source were updated we assume
+ // something like @videojs/http-streaming did the sourceset and skip updating the source cache.
+ if (!this.lastSource_ || this.lastSource_.tech !== eventSrc && this.lastSource_.player !== playerSrc) {
+ updateSourceCaches = function updateSourceCaches() {};
+ }
+ } // update the source to the intial source right away
+ // in some cases this will be empty string
+
+
+ updateSourceCaches(eventSrc); // if the `sourceset` `src` was an empty string
+ // wait for a `loadstart` to update the cache to `currentSrc`.
+ // If a sourceset happens before a `loadstart`, we reset the state
+
+ if (!event.src) {
+ this.tech_.any(['sourceset', 'loadstart'], function (e) {
+ // if a sourceset happens before a `loadstart` there
+ // is nothing to do as this `handleTechSourceset_`
+ // will be called again and this will be handled there.
+ if (e.type === 'sourceset') {
+ return;
+ }
+
+ var techSrc = _this6.techGet('currentSrc');
+
+ _this6.lastSource_.tech = techSrc;
+
+ _this6.updateSourceCaches_(techSrc);
+ });
+ }
+ }
+
+ this.lastSource_ = {
+ player: this.currentSource().src,
+ tech: event.src
+ };
+ this.trigger({
+ src: event.src,
+ type: 'sourceset'
+ });
+ }
+ /**
+ * Add/remove the vjs-has-started class
+ *
+ * @fires Player#firstplay
+ *
+ * @param {boolean} request
+ * - true: adds the class
+ * - false: remove the class
+ *
+ * @return {boolean}
+ * the boolean value of hasStarted_
+ */
+ ;
+
+ _proto.hasStarted = function hasStarted(request) {
+ if (request === undefined) {
+ // act as getter, if we have no request to change
+ return this.hasStarted_;
+ }
+
+ if (request === this.hasStarted_) {
+ return;
+ }
+
+ this.hasStarted_ = request;
+
+ if (this.hasStarted_) {
+ this.addClass('vjs-has-started');
+ this.trigger('firstplay');
+ } else {
+ this.removeClass('vjs-has-started');
+ }
+ }
+ /**
+ * Fired whenever the media begins or resumes playback
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}
+ * @fires Player#play
+ * @listens Tech#play
+ * @private
+ */
+ ;
+
+ _proto.handleTechPlay_ = function handleTechPlay_() {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing'); // hide the poster when the user hits play
+
+ this.hasStarted(true);
+ /**
+ * Triggered whenever an {@link Tech#play} event happens. Indicates that
+ * playback has started or resumed.
+ *
+ * @event Player#play
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('play');
+ }
+ /**
+ * Retrigger the `ratechange` event that was triggered by the {@link Tech}.
+ *
+ * If there were any events queued while the playback rate was zero, fire
+ * those events now.
+ *
+ * @private
+ * @method Player#handleTechRateChange_
+ * @fires Player#ratechange
+ * @listens Tech#ratechange
+ */
+ ;
+
+ _proto.handleTechRateChange_ = function handleTechRateChange_() {
+ if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {
+ this.queuedCallbacks_.forEach(function (queued) {
+ return queued.callback(queued.event);
+ });
+ this.queuedCallbacks_ = [];
+ }
+
+ this.cache_.lastPlaybackRate = this.tech_.playbackRate();
+ /**
+ * Fires when the playing speed of the audio/video is changed
+ *
+ * @event Player#ratechange
+ * @type {event}
+ */
+
+ this.trigger('ratechange');
+ }
+ /**
+ * Retrigger the `waiting` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#waiting
+ * @listens Tech#waiting
+ * @private
+ */
+ ;
+
+ _proto.handleTechWaiting_ = function handleTechWaiting_() {
+ var _this7 = this;
+
+ this.addClass('vjs-waiting');
+ /**
+ * A readyState change on the DOM element has caused playback to stop.
+ *
+ * @event Player#waiting
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('waiting'); // Browsers may emit a timeupdate event after a waiting event. In order to prevent
+ // premature removal of the waiting class, wait for the time to change.
+
+ var timeWhenWaiting = this.currentTime();
+
+ var timeUpdateListener = function timeUpdateListener() {
+ if (timeWhenWaiting !== _this7.currentTime()) {
+ _this7.removeClass('vjs-waiting');
+
+ _this7.off('timeupdate', timeUpdateListener);
+ }
+ };
+
+ this.on('timeupdate', timeUpdateListener);
+ }
+ /**
+ * Retrigger the `canplay` event that was triggered by the {@link Tech}.
+ * > Note: This is not consistent between browsers. See #1351
+ *
+ * @fires Player#canplay
+ * @listens Tech#canplay
+ * @private
+ */
+ ;
+
+ _proto.handleTechCanPlay_ = function handleTechCanPlay_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_FUTURE_DATA or greater.
+ *
+ * @event Player#canplay
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('canplay');
+ }
+ /**
+ * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#canplaythrough
+ * @listens Tech#canplaythrough
+ * @private
+ */
+ ;
+
+ _proto.handleTechCanPlayThrough_ = function handleTechCanPlayThrough_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the
+ * entire media file can be played without buffering.
+ *
+ * @event Player#canplaythrough
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('canplaythrough');
+ }
+ /**
+ * Retrigger the `playing` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#playing
+ * @listens Tech#playing
+ * @private
+ */
+ ;
+
+ _proto.handleTechPlaying_ = function handleTechPlaying_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media is no longer blocked from playback, and has started playing.
+ *
+ * @event Player#playing
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('playing');
+ }
+ /**
+ * Retrigger the `seeking` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeking
+ * @listens Tech#seeking
+ * @private
+ */
+ ;
+
+ _proto.handleTechSeeking_ = function handleTechSeeking_() {
+ this.addClass('vjs-seeking');
+ /**
+ * Fired whenever the player is jumping to a new time
+ *
+ * @event Player#seeking
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('seeking');
+ }
+ /**
+ * Retrigger the `seeked` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeked
+ * @listens Tech#seeked
+ * @private
+ */
+ ;
+
+ _proto.handleTechSeeked_ = function handleTechSeeked_() {
+ this.removeClass('vjs-seeking');
+ this.removeClass('vjs-ended');
+ /**
+ * Fired when the player has finished jumping to a new time
+ *
+ * @event Player#seeked
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('seeked');
+ }
+ /**
+ * Retrigger the `firstplay` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#firstplay
+ * @listens Tech#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * As of 6.0 passing the `starttime` option to the player and the firstplay event are deprecated.
+ * @private
+ */
+ ;
+
+ _proto.handleTechFirstPlay_ = function handleTechFirstPlay_() {
+ // If the first starttime attribute is specified
+ // then we will start at the given offset in seconds
+ if (this.options_.starttime) {
+ log.warn('Passing the `starttime` option to the player will be deprecated in 6.0');
+ this.currentTime(this.options_.starttime);
+ }
+
+ this.addClass('vjs-has-started');
+ /**
+ * Fired the first time a video is played. Not part of the HLS spec, and this is
+ * probably not the best implementation yet, so use sparingly. If you don't have a
+ * reason to prevent playback, use `myPlayer.one('play');` instead.
+ *
+ * @event Player#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('firstplay');
+ }
+ /**
+ * Retrigger the `pause` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#pause
+ * @listens Tech#pause
+ * @private
+ */
+ ;
+
+ _proto.handleTechPause_ = function handleTechPause_() {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ /**
+ * Fired whenever the media has been paused
+ *
+ * @event Player#pause
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('pause');
+ }
+ /**
+ * Retrigger the `ended` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#ended
+ * @listens Tech#ended
+ * @private
+ */
+ ;
+
+ _proto.handleTechEnded_ = function handleTechEnded_() {
+ this.addClass('vjs-ended');
+
+ if (this.options_.loop) {
+ this.currentTime(0);
+ this.play();
+ } else if (!this.paused()) {
+ this.pause();
+ }
+ /**
+ * Fired when the end of the media resource is reached (currentTime == duration)
+ *
+ * @event Player#ended
+ * @type {EventTarget~Event}
+ */
+
+
+ this.trigger('ended');
+ }
+ /**
+ * Fired when the duration of the media resource is first known or changed
+ *
+ * @listens Tech#durationchange
+ * @private
+ */
+ ;
+
+ _proto.handleTechDurationChange_ = function handleTechDurationChange_() {
+ this.duration(this.techGet_('duration'));
+ }
+ /**
+ * Handle a click on the media element to play/pause
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#mouseup
+ * @private
+ */
+ ;
+
+ _proto.handleTechClick_ = function handleTechClick_(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ } // When controls are disabled a click should not toggle playback because
+ // the click is considered a control
+
+
+ if (!this.controls_) {
+ return;
+ }
+
+ if (this.paused()) {
+ silencePromise(this.play());
+ } else {
+ this.pause();
+ }
+ }
+ /**
+ * Handle a double-click on the media element to enter/exit fullscreen
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#dblclick
+ * @private
+ */
+ ;
+
+ _proto.handleTechDoubleClick_ = function handleTechDoubleClick_(event) {
+ if (!this.controls_) {
+ return;
+ } // we do not want to toggle fullscreen state
+ // when double-clicking inside a control bar or a modal
+
+
+ var inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), function (el) {
+ return el.contains(event.target);
+ });
+
+ if (!inAllowedEls) {
+ /*
+ * options.userActions.doubleClick
+ *
+ * If `undefined` or `true`, double-click toggles fullscreen if controls are present
+ * Set to `false` to disable double-click handling
+ * Set to a function to substitute an external double-click handler
+ */
+ if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.doubleClick === undefined || this.options_.userActions.doubleClick !== false) {
+ if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.doubleClick === 'function') {
+ this.options_.userActions.doubleClick.call(this, event);
+ } else if (this.isFullscreen()) {
+ this.exitFullscreen();
+ } else {
+ this.requestFullscreen();
+ }
+ }
+ }
+ }
+ /**
+ * Handle a tap on the media element. It will toggle the user
+ * activity state, which hides and shows the controls.
+ *
+ * @listens Tech#tap
+ * @private
+ */
+ ;
+
+ _proto.handleTechTap_ = function handleTechTap_() {
+ this.userActive(!this.userActive());
+ }
+ /**
+ * Handle touch to start
+ *
+ * @listens Tech#touchstart
+ * @private
+ */
+ ;
+
+ _proto.handleTechTouchStart_ = function handleTechTouchStart_() {
+ this.userWasActive = this.userActive();
+ }
+ /**
+ * Handle touch to move
+ *
+ * @listens Tech#touchmove
+ * @private
+ */
+ ;
+
+ _proto.handleTechTouchMove_ = function handleTechTouchMove_() {
+ if (this.userWasActive) {
+ this.reportUserActivity();
+ }
+ }
+ /**
+ * Handle touch to end
+ *
+ * @param {EventTarget~Event} event
+ * the touchend event that triggered
+ * this function
+ *
+ * @listens Tech#touchend
+ * @private
+ */
+ ;
+
+ _proto.handleTechTouchEnd_ = function handleTechTouchEnd_(event) {
+ // Stop the mouse events from also happening
+ event.preventDefault();
+ }
+ /**
+ * native click events on the SWF aren't triggered on IE11, Win8.1RT
+ * use stageclick events triggered from inside the SWF instead
+ *
+ * @private
+ * @listens stageclick
+ */
+ ;
+
+ _proto.handleStageClick_ = function handleStageClick_() {
+ this.reportUserActivity();
+ }
+ /**
+ * @private
+ */
+ ;
+
+ _proto.toggleFullscreenClass_ = function toggleFullscreenClass_() {
+ if (this.isFullscreen()) {
+ this.addClass('vjs-fullscreen');
+ } else {
+ this.removeClass('vjs-fullscreen');
+ }
+ }
+ /**
+ * when the document fschange event triggers it calls this
+ */
+ ;
+
+ _proto.documentFullscreenChange_ = function documentFullscreenChange_(e) {
+ var el = this.el();
+ var isFs = document[this.fsApi_.fullscreenElement] === el;
+
+ if (!isFs && el.matches) {
+ isFs = el.matches(':' + this.fsApi_.fullscreen);
+ } else if (!isFs && el.msMatchesSelector) {
+ isFs = el.msMatchesSelector(':' + this.fsApi_.fullscreen);
+ }
+
+ this.isFullscreen(isFs); // If cancelling fullscreen, remove event listener.
+
+ if (this.isFullscreen() === false) {
+ off(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);
+ }
+
+ if (this.fsApi_.prefixed) {
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ }
+ /**
+ * Handle Tech Fullscreen Change
+ *
+ * @param {EventTarget~Event} event
+ * the fullscreenchange event that triggered this function
+ *
+ * @param {Object} data
+ * the data that was sent with the event
+ *
+ * @private
+ * @listens Tech#fullscreenchange
+ * @fires Player#fullscreenchange
+ */
+ ;
+
+ _proto.handleTechFullscreenChange_ = function handleTechFullscreenChange_(event, data) {
+ if (data) {
+ this.isFullscreen(data.isFullscreen);
+ }
+ /**
+ * Fired when going in and out of fullscreen.
+ *
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+
+
+ this.trigger('fullscreenchange');
+ }
+ /**
+ * @private
+ */
+ ;
+
+ _proto.togglePictureInPictureClass_ = function togglePictureInPictureClass_() {
+ if (this.isInPictureInPicture()) {
+ this.addClass('vjs-picture-in-picture');
+ } else {
+ this.removeClass('vjs-picture-in-picture');
+ }
+ }
+ /**
+ * Handle Tech Enter Picture-in-Picture.
+ *
+ * @param {EventTarget~Event} event
+ * the enterpictureinpicture event that triggered this function
+ *
+ * @private
+ * @listens Tech#enterpictureinpicture
+ */
+ ;
+
+ _proto.handleTechEnterPictureInPicture_ = function handleTechEnterPictureInPicture_(event) {
+ this.isInPictureInPicture(true);
+ }
+ /**
+ * Handle Tech Leave Picture-in-Picture.
+ *
+ * @param {EventTarget~Event} event
+ * the leavepictureinpicture event that triggered this function
+ *
+ * @private
+ * @listens Tech#leavepictureinpicture
+ */
+ ;
+
+ _proto.handleTechLeavePictureInPicture_ = function handleTechLeavePictureInPicture_(event) {
+ this.isInPictureInPicture(false);
+ }
+ /**
+ * Fires when an error occurred during the loading of an audio/video.
+ *
+ * @private
+ * @listens Tech#error
+ */
+ ;
+
+ _proto.handleTechError_ = function handleTechError_() {
+ var error = this.tech_.error();
+ this.error(error);
+ }
+ /**
+ * Retrigger the `textdata` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#textdata
+ * @listens Tech#textdata
+ * @private
+ */
+ ;
+
+ _proto.handleTechTextData_ = function handleTechTextData_() {
+ var data = null;
+
+ if (arguments.length > 1) {
+ data = arguments[1];
+ }
+ /**
+ * Fires when we get a textdata event from tech
+ *
+ * @event Player#textdata
+ * @type {EventTarget~Event}
+ */
+
+
+ this.trigger('textdata', data);
+ }
+ /**
+ * Get object for cached values.
+ *
+ * @return {Object}
+ * get the current object cache
+ */
+ ;
+
+ _proto.getCache = function getCache() {
+ return this.cache_;
+ }
+ /**
+ * Resets the internal cache object.
+ *
+ * Using this function outside the player constructor or reset method may
+ * have unintended side-effects.
+ *
+ * @private
+ */
+ ;
+
+ _proto.resetCache_ = function resetCache_() {
+ this.cache_ = {
+ // Right now, the currentTime is not _really_ cached because it is always
+ // retrieved from the tech (see: currentTime). However, for completeness,
+ // we set it to zero here to ensure that if we do start actually caching
+ // it, we reset it along with everything else.
+ currentTime: 0,
+ inactivityTimeout: this.options_.inactivityTimeout,
+ duration: NaN,
+ lastVolume: 1,
+ lastPlaybackRate: this.defaultPlaybackRate(),
+ media: null,
+ src: '',
+ source: {},
+ sources: [],
+ volume: 1
+ };
+ }
+ /**
+ * Pass values to the playback tech
+ *
+ * @param {string} [method]
+ * the method to call
+ *
+ * @param {Object} arg
+ * the argument to pass
+ *
+ * @private
+ */
+ ;
+
+ _proto.techCall_ = function techCall_(method, arg) {
+ // If it's not ready yet, call method when it is
+ this.ready(function () {
+ if (method in allowedSetters) {
+ return set(this.middleware_, this.tech_, method, arg);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method, arg);
+ }
+
+ try {
+ if (this.tech_) {
+ this.tech_[method](arg);
+ }
+ } catch (e) {
+ log(e);
+ throw e;
+ }
+ }, true);
+ }
+ /**
+ * Get calls can't wait for the tech, and sometimes don't need to.
+ *
+ * @param {string} method
+ * Tech method
+ *
+ * @return {Function|undefined}
+ * the method or undefined
+ *
+ * @private
+ */
+ ;
+
+ _proto.techGet_ = function techGet_(method) {
+ if (!this.tech_ || !this.tech_.isReady_) {
+ return;
+ }
+
+ if (method in allowedGetters) {
+ return get(this.middleware_, this.tech_, method);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method);
+ } // Flash likes to die and reload when you hide or reposition it.
+ // In these cases the object methods go away and we get errors.
+ // When that happens we'll catch the errors and inform tech that it's not ready any more.
+
+
+ try {
+ return this.tech_[method]();
+ } catch (e) {
+ // When building additional tech libs, an expected method may not be defined yet
+ if (this.tech_[method] === undefined) {
+ log("Video.js: " + method + " method not defined for " + this.techName_ + " playback technology.", e);
+ throw e;
+ } // When a method isn't available on the object it throws a TypeError
+
+
+ if (e.name === 'TypeError') {
+ log("Video.js: " + method + " unavailable on " + this.techName_ + " playback technology element.", e);
+ this.tech_.isReady_ = false;
+ throw e;
+ } // If error unknown, just log and throw
+
+
+ log(e);
+ throw e;
+ }
+ }
+ /**
+ * Attempt to begin playback at the first opportunity.
+ *
+ * @return {Promise|undefined}
+ * Returns a promise if the browser supports Promises (or one
+ * was passed in as an option). This promise will be resolved on
+ * the return value of play. If this is undefined it will fulfill the
+ * promise chain otherwise the promise chain will be fulfilled when
+ * the promise from play is fulfilled.
+ */
+ ;
+
+ _proto.play = function play() {
+ var _this8 = this;
+
+ var PromiseClass = this.options_.Promise || window$1.Promise;
+
+ if (PromiseClass) {
+ return new PromiseClass(function (resolve) {
+ _this8.play_(resolve);
+ });
+ }
+
+ return this.play_();
+ }
+ /**
+ * The actual logic for play, takes a callback that will be resolved on the
+ * return value of play. This allows us to resolve to the play promise if there
+ * is one on modern browsers.
+ *
+ * @private
+ * @param {Function} [callback]
+ * The callback that should be called when the techs play is actually called
+ */
+ ;
+
+ _proto.play_ = function play_(callback) {
+ var _this9 = this;
+
+ if (callback === void 0) {
+ callback = silencePromise;
+ }
+
+ this.playCallbacks_.push(callback);
+ var isSrcReady = Boolean(!this.changingSrc_ && (this.src() || this.currentSrc())); // treat calls to play_ somewhat like the `one` event function
+
+ if (this.waitToPlay_) {
+ this.off(['ready', 'loadstart'], this.waitToPlay_);
+ this.waitToPlay_ = null;
+ } // if the player/tech is not ready or the src itself is not ready
+ // queue up a call to play on `ready` or `loadstart`
+
+
+ if (!this.isReady_ || !isSrcReady) {
+ this.waitToPlay_ = function (e) {
+ _this9.play_();
+ };
+
+ this.one(['ready', 'loadstart'], this.waitToPlay_); // if we are in Safari, there is a high chance that loadstart will trigger after the gesture timeperiod
+ // in that case, we need to prime the video element by calling load so it'll be ready in time
+
+ if (!isSrcReady && (IS_ANY_SAFARI || IS_IOS)) {
+ this.load();
+ }
+
+ return;
+ } // If the player/tech is ready and we have a source, we can attempt playback.
+
+
+ var val = this.techGet_('play'); // play was terminated if the returned value is null
+
+ if (val === null) {
+ this.runPlayTerminatedQueue_();
+ } else {
+ this.runPlayCallbacks_(val);
+ }
+ }
+ /**
+ * These functions will be run when if play is terminated. If play
+ * runPlayCallbacks_ is run these function will not be run. This allows us
+ * to differenciate between a terminated play and an actual call to play.
+ */
+ ;
+
+ _proto.runPlayTerminatedQueue_ = function runPlayTerminatedQueue_() {
+ var queue = this.playTerminatedQueue_.slice(0);
+ this.playTerminatedQueue_ = [];
+ queue.forEach(function (q) {
+ q();
+ });
+ }
+ /**
+ * When a callback to play is delayed we have to run these
+ * callbacks when play is actually called on the tech. This function
+ * runs the callbacks that were delayed and accepts the return value
+ * from the tech.
+ *
+ * @param {undefined|Promise} val
+ * The return value from the tech.
+ */
+ ;
+
+ _proto.runPlayCallbacks_ = function runPlayCallbacks_(val) {
+ var callbacks = this.playCallbacks_.slice(0);
+ this.playCallbacks_ = []; // clear play terminatedQueue since we finished a real play
+
+ this.playTerminatedQueue_ = [];
+ callbacks.forEach(function (cb) {
+ cb(val);
+ });
+ }
+ /**
+ * Pause the video playback
+ *
+ * @return {Player}
+ * A reference to the player object this function was called on
+ */
+ ;
+
+ _proto.pause = function pause() {
+ this.techCall_('pause');
+ }
+ /**
+ * Check if the player is paused or has yet to play
+ *
+ * @return {boolean}
+ * - false: if the media is currently playing
+ * - true: if media is not currently playing
+ */
+ ;
+
+ _proto.paused = function paused() {
+ // The initial state of paused should be true (in Safari it's actually false)
+ return this.techGet_('paused') === false ? false : true;
+ }
+ /**
+ * Get a TimeRange object representing the current ranges of time that the user
+ * has played.
+ *
+ * @return {TimeRange}
+ * A time range object that represents all the increments of time that have
+ * been played.
+ */
+ ;
+
+ _proto.played = function played() {
+ return this.techGet_('played') || createTimeRanges(0, 0);
+ }
+ /**
+ * Returns whether or not the user is "scrubbing". Scrubbing is
+ * when the user has clicked the progress bar handle and is
+ * dragging it along the progress bar.
+ *
+ * @param {boolean} [isScrubbing]
+ * whether the user is or is not scrubbing
+ *
+ * @return {boolean}
+ * The value of scrubbing when getting
+ */
+ ;
+
+ _proto.scrubbing = function scrubbing(isScrubbing) {
+ if (typeof isScrubbing === 'undefined') {
+ return this.scrubbing_;
+ }
+
+ this.scrubbing_ = !!isScrubbing;
+
+ if (isScrubbing) {
+ this.addClass('vjs-scrubbing');
+ } else {
+ this.removeClass('vjs-scrubbing');
+ }
+ }
+ /**
+ * Get or set the current time (in seconds)
+ *
+ * @param {number|string} [seconds]
+ * The time to seek to in seconds
+ *
+ * @return {number}
+ * - the current time in seconds when getting
+ */
+ ;
+
+ _proto.currentTime = function currentTime(seconds) {
+ if (typeof seconds !== 'undefined') {
+ if (seconds < 0) {
+ seconds = 0;
+ }
+
+ this.techCall_('setCurrentTime', seconds);
+ return;
+ } // cache last currentTime and return. default to 0 seconds
+ //
+ // Caching the currentTime is meant to prevent a massive amount of reads on the tech's
+ // currentTime when scrubbing, but may not provide much performance benefit afterall.
+ // Should be tested. Also something has to read the actual current time or the cache will
+ // never get updated.
+
+
+ this.cache_.currentTime = this.techGet_('currentTime') || 0;
+ return this.cache_.currentTime;
+ }
+ /**
+ * Normally gets the length in time of the video in seconds;
+ * in all but the rarest use cases an argument will NOT be passed to the method
+ *
+ * > **NOTE**: The video must have started loading before the duration can be
+ * known, and in the case of Flash, may not be known until the video starts
+ * playing.
+ *
+ * @fires Player#durationchange
+ *
+ * @param {number} [seconds]
+ * The duration of the video to set in seconds
+ *
+ * @return {number}
+ * - The duration of the video in seconds when getting
+ */
+ ;
+
+ _proto.duration = function duration(seconds) {
+ if (seconds === undefined) {
+ // return NaN if the duration is not known
+ return this.cache_.duration !== undefined ? this.cache_.duration : NaN;
+ }
+
+ seconds = parseFloat(seconds); // Standardize on Infinity for signaling video is live
+
+ if (seconds < 0) {
+ seconds = Infinity;
+ }
+
+ if (seconds !== this.cache_.duration) {
+ // Cache the last set value for optimized scrubbing (esp. Flash)
+ this.cache_.duration = seconds;
+
+ if (seconds === Infinity) {
+ this.addClass('vjs-live');
+
+ if (this.options_.liveui && this.player_.liveTracker) {
+ this.addClass('vjs-liveui');
+ }
+ } else {
+ this.removeClass('vjs-live');
+ this.removeClass('vjs-liveui');
+ }
+
+ if (!isNaN(seconds)) {
+ // Do not fire durationchange unless the duration value is known.
+ // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}
+
+ /**
+ * @event Player#durationchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('durationchange');
+ }
+ }
+ }
+ /**
+ * Calculates how much time is left in the video. Not part
+ * of the native video API.
+ *
+ * @return {number}
+ * The time remaining in seconds
+ */
+ ;
+
+ _proto.remainingTime = function remainingTime() {
+ return this.duration() - this.currentTime();
+ }
+ /**
+ * A remaining time function that is intented to be used when
+ * the time is to be displayed directly to the user.
+ *
+ * @return {number}
+ * The rounded time remaining in seconds
+ */
+ ;
+
+ _proto.remainingTimeDisplay = function remainingTimeDisplay() {
+ return Math.floor(this.duration()) - Math.floor(this.currentTime());
+ } //
+ // Kind of like an array of portions of the video that have been downloaded.
+
+ /**
+ * Get a TimeRange object with an array of the times of the video
+ * that have been downloaded. If you just want the percent of the
+ * video that's been downloaded, use bufferedPercent.
+ *
+ * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}
+ *
+ * @return {TimeRange}
+ * A mock TimeRange object (following HTML spec)
+ */
+ ;
+
+ _proto.buffered = function buffered() {
+ var buffered = this.techGet_('buffered');
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ return buffered;
+ }
+ /**
+ * Get the percent (as a decimal) of the video that's been downloaded.
+ * This method is not a part of the native HTML video API.
+ *
+ * @return {number}
+ * A decimal between 0 and 1 representing the percent
+ * that is buffered 0 being 0% and 1 being 100%
+ */
+ ;
+
+ _proto.bufferedPercent = function bufferedPercent$1() {
+ return bufferedPercent(this.buffered(), this.duration());
+ }
+ /**
+ * Get the ending time of the last buffered time range
+ * This is used in the progress bar to encapsulate all time ranges.
+ *
+ * @return {number}
+ * The end of the last buffered time range
+ */
+ ;
+
+ _proto.bufferedEnd = function bufferedEnd() {
+ var buffered = this.buffered();
+ var duration = this.duration();
+ var end = buffered.end(buffered.length - 1);
+
+ if (end > duration) {
+ end = duration;
+ }
+
+ return end;
+ }
+ /**
+ * Get or set the current volume of the media
+ *
+ * @param {number} [percentAsDecimal]
+ * The new volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * The current volume as a percent when getting
+ */
+ ;
+
+ _proto.volume = function volume(percentAsDecimal) {
+ var vol;
+
+ if (percentAsDecimal !== undefined) {
+ // Force value to between 0 and 1
+ vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));
+ this.cache_.volume = vol;
+ this.techCall_('setVolume', vol);
+
+ if (vol > 0) {
+ this.lastVolume_(vol);
+ }
+
+ return;
+ } // Default to 1 when returning current volume.
+
+
+ vol = parseFloat(this.techGet_('volume'));
+ return isNaN(vol) ? 1 : vol;
+ }
+ /**
+ * Get the current muted state, or turn mute on or off
+ *
+ * @param {boolean} [muted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean}
+ * - true if mute is on and getting
+ * - false if mute is off and getting
+ */
+ ;
+
+ _proto.muted = function muted(_muted) {
+ if (_muted !== undefined) {
+ this.techCall_('setMuted', _muted);
+ return;
+ }
+
+ return this.techGet_('muted') || false;
+ }
+ /**
+ * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted
+ * indicates the state of muted on initial playback.
+ *
+ * ```js
+ * var myPlayer = videojs('some-player-id');
+ *
+ * myPlayer.src("http://www.example.com/path/to/video.mp4");
+ *
+ * // get, should be false
+ * console.log(myPlayer.defaultMuted());
+ * // set to true
+ * myPlayer.defaultMuted(true);
+ * // get should be true
+ * console.log(myPlayer.defaultMuted());
+ * ```
+ *
+ * @param {boolean} [defaultMuted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean|Player}
+ * - true if defaultMuted is on and getting
+ * - false if defaultMuted is off and getting
+ * - A reference to the current player when setting
+ */
+ ;
+
+ _proto.defaultMuted = function defaultMuted(_defaultMuted) {
+ if (_defaultMuted !== undefined) {
+ return this.techCall_('setDefaultMuted', _defaultMuted);
+ }
+
+ return this.techGet_('defaultMuted') || false;
+ }
+ /**
+ * Get the last volume, or set it
+ *
+ * @param {number} [percentAsDecimal]
+ * The new last volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * the current value of lastVolume as a percent when getting
+ *
+ * @private
+ */
+ ;
+
+ _proto.lastVolume_ = function lastVolume_(percentAsDecimal) {
+ if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {
+ this.cache_.lastVolume = percentAsDecimal;
+ return;
+ }
+
+ return this.cache_.lastVolume;
+ }
+ /**
+ * Check if current tech can support native fullscreen
+ * (e.g. with built in controls like iOS, so not our flash swf)
+ *
+ * @return {boolean}
+ * if native fullscreen is supported
+ */
+ ;
+
+ _proto.supportsFullScreen = function supportsFullScreen() {
+ return this.techGet_('supportsFullScreen') || false;
+ }
+ /**
+ * Check if the player is in fullscreen mode or tell the player that it
+ * is or is not in fullscreen mode.
+ *
+ * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official
+ * property and instead document.fullscreenElement is used. But isFullscreen is
+ * still a valuable property for internal player workings.
+ *
+ * @param {boolean} [isFS]
+ * Set the players current fullscreen state
+ *
+ * @return {boolean}
+ * - true if fullscreen is on and getting
+ * - false if fullscreen is off and getting
+ */
+ ;
+
+ _proto.isFullscreen = function isFullscreen(isFS) {
+ if (isFS !== undefined) {
+ this.isFullscreen_ = !!isFS;
+ this.toggleFullscreenClass_();
+ return;
+ }
+
+ return !!this.isFullscreen_;
+ }
+ /**
+ * Increase the size of the video to full screen
+ * In some browsers, full screen is not supported natively, so it enters
+ * "full window mode", where the video fills the browser window.
+ * In browsers and devices that support native full screen, sometimes the
+ * browser's default controls will be shown, and not the Video.js custom skin.
+ * This includes most mobile devices (iOS, Android) and older versions of
+ * Safari.
+ *
+ * @param {Object} [fullscreenOptions]
+ * Override the player fullscreen options
+ *
+ * @fires Player#fullscreenchange
+ */
+ ;
+
+ _proto.requestFullscreen = function requestFullscreen(fullscreenOptions) {
+ var fsOptions;
+ this.isFullscreen(true);
+
+ if (this.fsApi_.requestFullscreen) {
+ // the browser supports going fullscreen at the element level so we can
+ // take the controls fullscreen as well as the video
+ // Trigger fullscreenchange event after change
+ // We have to specifically add this each time, and remove
+ // when canceling fullscreen. Otherwise if there's multiple
+ // players on a page, they would all be reacting to the same fullscreen
+ // events
+ on(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_); // only pass FullscreenOptions to requestFullscreen if it isn't prefixed
+
+ if (!this.fsApi_.prefixed) {
+ fsOptions = this.options_.fullscreen && this.options_.fullscreen.options || {};
+
+ if (fullscreenOptions !== undefined) {
+ fsOptions = fullscreenOptions;
+ }
+ }
+
+ silencePromise(this.el_[this.fsApi_.requestFullscreen](fsOptions));
+ } else if (this.tech_.supportsFullScreen()) {
+ // we can't take the video.js controls fullscreen but we can go fullscreen
+ // with native controls
+ this.techCall_('enterFullScreen');
+ } else {
+ // fullscreen isn't supported so we'll just stretch the video element to
+ // fill the viewport
+ this.enterFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('fullscreenchange');
+ }
+ }
+ /**
+ * Return the video to its normal size after having been in full screen mode
+ *
+ * @fires Player#fullscreenchange
+ */
+ ;
+
+ _proto.exitFullscreen = function exitFullscreen() {
+ this.isFullscreen(false); // Check for browser element fullscreen support
+
+ if (this.fsApi_.requestFullscreen) {
+ silencePromise(document[this.fsApi_.exitFullscreen]());
+ } else if (this.tech_.supportsFullScreen()) {
+ this.techCall_('exitFullScreen');
+ } else {
+ this.exitFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('fullscreenchange');
+ }
+ }
+ /**
+ * When fullscreen isn't supported we can stretch the
+ * video container to as wide as the browser will let us.
+ *
+ * @fires Player#enterFullWindow
+ */
+ ;
+
+ _proto.enterFullWindow = function enterFullWindow() {
+ this.isFullWindow = true; // Storing original doc overflow value to return to when fullscreen is off
+
+ this.docOrigOverflow = document.documentElement.style.overflow; // Add listener for esc key to exit fullscreen
+
+ on(document, 'keydown', this.boundFullWindowOnEscKey_); // Hide any scroll bars
+
+ document.documentElement.style.overflow = 'hidden'; // Apply fullscreen styles
+
+ addClass(document.body, 'vjs-full-window');
+ /**
+ * @event Player#enterFullWindow
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('enterFullWindow');
+ }
+ /**
+ * Check for call to either exit full window or
+ * full screen on ESC key
+ *
+ * @param {string} event
+ * Event to check for key press
+ */
+ ;
+
+ _proto.fullWindowOnEscKey = function fullWindowOnEscKey(event) {
+ if (keycode.isEventKey(event, 'Esc')) {
+ if (this.isFullscreen() === true) {
+ this.exitFullscreen();
+ } else {
+ this.exitFullWindow();
+ }
+ }
+ }
+ /**
+ * Exit full window
+ *
+ * @fires Player#exitFullWindow
+ */
+ ;
+
+ _proto.exitFullWindow = function exitFullWindow() {
+ this.isFullWindow = false;
+ off(document, 'keydown', this.boundFullWindowOnEscKey_); // Unhide scroll bars.
+
+ document.documentElement.style.overflow = this.docOrigOverflow; // Remove fullscreen styles
+
+ removeClass(document.body, 'vjs-full-window'); // Resize the box, controller, and poster to original sizes
+ // this.positionAll();
+
+ /**
+ * @event Player#exitFullWindow
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('exitFullWindow');
+ }
+ /**
+ * Check if the player is in Picture-in-Picture mode or tell the player that it
+ * is or is not in Picture-in-Picture mode.
+ *
+ * @param {boolean} [isPiP]
+ * Set the players current Picture-in-Picture state
+ *
+ * @return {boolean}
+ * - true if Picture-in-Picture is on and getting
+ * - false if Picture-in-Picture is off and getting
+ */
+ ;
+
+ _proto.isInPictureInPicture = function isInPictureInPicture(isPiP) {
+ if (isPiP !== undefined) {
+ this.isInPictureInPicture_ = !!isPiP;
+ this.togglePictureInPictureClass_();
+ return;
+ }
+
+ return !!this.isInPictureInPicture_;
+ }
+ /**
+ * Create a floating video window always on top of other windows so that users may
+ * continue consuming media while they interact with other content sites, or
+ * applications on their device.
+ *
+ * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
+ *
+ * @fires Player#enterpictureinpicture
+ *
+ * @return {Promise}
+ * A promise with a Picture-in-Picture window.
+ */
+ ;
+
+ _proto.requestPictureInPicture = function requestPictureInPicture() {
+ if ('pictureInPictureEnabled' in document) {
+ /**
+ * This event fires when the player enters picture in picture mode
+ *
+ * @event Player#enterpictureinpicture
+ * @type {EventTarget~Event}
+ */
+ return this.techGet_('requestPictureInPicture');
+ }
+ }
+ /**
+ * Exit Picture-in-Picture mode.
+ *
+ * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
+ *
+ * @fires Player#leavepictureinpicture
+ *
+ * @return {Promise}
+ * A promise.
+ */
+ ;
+
+ _proto.exitPictureInPicture = function exitPictureInPicture() {
+ if ('pictureInPictureEnabled' in document) {
+ /**
+ * This event fires when the player leaves picture in picture mode
+ *
+ * @event Player#leavepictureinpicture
+ * @type {EventTarget~Event}
+ */
+ return document.exitPictureInPicture();
+ }
+ }
+ /**
+ * Called when this Player has focus and a key gets pressed down, or when
+ * any Component of this player receives a key press that it doesn't handle.
+ * This allows player-wide hotkeys (either as defined below, or optionally
+ * by an external function).
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+ ;
+
+ _proto.handleKeyDown = function handleKeyDown(event) {
+ var userActions = this.options_.userActions; // Bail out if hotkeys are not configured.
+
+ if (!userActions || !userActions.hotkeys) {
+ return;
+ } // Function that determines whether or not to exclude an element from
+ // hotkeys handling.
+
+
+ var excludeElement = function excludeElement(el) {
+ var tagName = el.tagName.toLowerCase(); // The first and easiest test is for `contenteditable` elements.
+
+ if (el.isContentEditable) {
+ return true;
+ } // Inputs matching these types will still trigger hotkey handling as
+ // they are not text inputs.
+
+
+ var allowedInputTypes = ['button', 'checkbox', 'hidden', 'radio', 'reset', 'submit'];
+
+ if (tagName === 'input') {
+ return allowedInputTypes.indexOf(el.type) === -1;
+ } // The final test is by tag name. These tags will be excluded entirely.
+
+
+ var excludedTags = ['textarea'];
+ return excludedTags.indexOf(tagName) !== -1;
+ }; // Bail out if the user is focused on an interactive form element.
+
+
+ if (excludeElement(this.el_.ownerDocument.activeElement)) {
+ return;
+ }
+
+ if (typeof userActions.hotkeys === 'function') {
+ userActions.hotkeys.call(this, event);
+ } else {
+ this.handleHotkeys(event);
+ }
+ }
+ /**
+ * Called when this Player receives a hotkey keydown event.
+ * Supported player-wide hotkeys are:
+ *
+ * f - toggle fullscreen
+ * m - toggle mute
+ * k or Space - toggle play/pause
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ */
+ ;
+
+ _proto.handleHotkeys = function handleHotkeys(event) {
+ var hotkeys = this.options_.userActions ? this.options_.userActions.hotkeys : {}; // set fullscreenKey, muteKey, playPauseKey from `hotkeys`, use defaults if not set
+
+ var _hotkeys$fullscreenKe = hotkeys.fullscreenKey,
+ fullscreenKey = _hotkeys$fullscreenKe === void 0 ? function (keydownEvent) {
+ return keycode.isEventKey(keydownEvent, 'f');
+ } : _hotkeys$fullscreenKe,
+ _hotkeys$muteKey = hotkeys.muteKey,
+ muteKey = _hotkeys$muteKey === void 0 ? function (keydownEvent) {
+ return keycode.isEventKey(keydownEvent, 'm');
+ } : _hotkeys$muteKey,
+ _hotkeys$playPauseKey = hotkeys.playPauseKey,
+ playPauseKey = _hotkeys$playPauseKey === void 0 ? function (keydownEvent) {
+ return keycode.isEventKey(keydownEvent, 'k') || keycode.isEventKey(keydownEvent, 'Space');
+ } : _hotkeys$playPauseKey;
+
+ if (fullscreenKey.call(this, event)) {
+ event.preventDefault();
+ event.stopPropagation();
+ var FSToggle = Component.getComponent('FullscreenToggle');
+
+ if (document[this.fsApi_.fullscreenEnabled] !== false) {
+ FSToggle.prototype.handleClick.call(this, event);
+ }
+ } else if (muteKey.call(this, event)) {
+ event.preventDefault();
+ event.stopPropagation();
+ var MuteToggle = Component.getComponent('MuteToggle');
+ MuteToggle.prototype.handleClick.call(this, event);
+ } else if (playPauseKey.call(this, event)) {
+ event.preventDefault();
+ event.stopPropagation();
+ var PlayToggle = Component.getComponent('PlayToggle');
+ PlayToggle.prototype.handleClick.call(this, event);
+ }
+ }
+ /**
+ * Check whether the player can play a given mimetype
+ *
+ * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ ;
+
+ _proto.canPlayType = function canPlayType(type) {
+ var can; // Loop through each playback technology in the options order
+
+ for (var i = 0, j = this.options_.techOrder; i < j.length; i++) {
+ var techName = j[i];
+ var tech = Tech.getTech(techName); // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+
+ if (!tech) {
+ tech = Component.getComponent(techName);
+ } // Check if the current tech is defined before continuing
+
+
+ if (!tech) {
+ log.error("The \"" + techName + "\" tech is undefined. Skipped browser support check for that tech.");
+ continue;
+ } // Check if the browser supports this technology
+
+
+ if (tech.isSupported()) {
+ can = tech.canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+ }
+
+ return '';
+ }
+ /**
+ * Select source based on tech-order or source-order
+ * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,
+ * defaults to tech-order selection
+ *
+ * @param {Array} sources
+ * The sources for a media asset
+ *
+ * @return {Object|boolean}
+ * Object of source and tech order or false
+ */
+ ;
+
+ _proto.selectSource = function selectSource(sources) {
+ var _this10 = this;
+
+ // Get only the techs specified in `techOrder` that exist and are supported by the
+ // current platform
+ var techs = this.options_.techOrder.map(function (techName) {
+ return [techName, Tech.getTech(techName)];
+ }).filter(function (_ref) {
+ var techName = _ref[0],
+ tech = _ref[1];
+
+ // Check if the current tech is defined before continuing
+ if (tech) {
+ // Check if the browser supports this technology
+ return tech.isSupported();
+ }
+
+ log.error("The \"" + techName + "\" tech is undefined. Skipped browser support check for that tech.");
+ return false;
+ }); // Iterate over each `innerArray` element once per `outerArray` element and execute
+ // `tester` with both. If `tester` returns a non-falsy value, exit early and return
+ // that value.
+
+ var findFirstPassingTechSourcePair = function findFirstPassingTechSourcePair(outerArray, innerArray, tester) {
+ var found;
+ outerArray.some(function (outerChoice) {
+ return innerArray.some(function (innerChoice) {
+ found = tester(outerChoice, innerChoice);
+
+ if (found) {
+ return true;
+ }
+ });
+ });
+ return found;
+ };
+
+ var foundSourceAndTech;
+
+ var flip = function flip(fn) {
+ return function (a, b) {
+ return fn(b, a);
+ };
+ };
+
+ var finder = function finder(_ref2, source) {
+ var techName = _ref2[0],
+ tech = _ref2[1];
+
+ if (tech.canPlaySource(source, _this10.options_[techName.toLowerCase()])) {
+ return {
+ source: source,
+ tech: techName
+ };
+ }
+ }; // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources
+ // to select from them based on their priority.
+
+
+ if (this.options_.sourceOrder) {
+ // Source-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));
+ } else {
+ // Tech-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);
+ }
+
+ return foundSourceAndTech || false;
+ }
+ /**
+ * Get or set the video source.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
+ * A SourceObject, an array of SourceObjects, or a string referencing
+ * a URL to a media source. It is _highly recommended_ that an object
+ * or array of objects is used here, so that source selection
+ * algorithms can take the `type` into account.
+ *
+ * If not provided, this method acts as a getter.
+ *
+ * @return {string|undefined}
+ * If the `source` argument is missing, returns the current source
+ * URL. Otherwise, returns nothing/undefined.
+ */
+ ;
+
+ _proto.src = function src(source) {
+ var _this11 = this;
+
+ // getter usage
+ if (typeof source === 'undefined') {
+ return this.cache_.src || '';
+ } // filter out invalid sources and turn our source into
+ // an array of source objects
+
+
+ var sources = filterSource(source); // if a source was passed in then it is invalid because
+ // it was filtered to a zero length Array. So we have to
+ // show an error
+
+ if (!sources.length) {
+ this.setTimeout(function () {
+ this.error({
+ code: 4,
+ message: this.localize(this.options_.notSupportedMessage)
+ });
+ }, 0);
+ return;
+ } // intial sources
+
+
+ this.changingSrc_ = true;
+ this.cache_.sources = sources;
+ this.updateSourceCaches_(sources[0]); // middlewareSource is the source after it has been changed by middleware
+
+ setSource(this, sources[0], function (middlewareSource, mws) {
+ _this11.middleware_ = mws; // since sourceSet is async we have to update the cache again after we select a source since
+ // the source that is selected could be out of order from the cache update above this callback.
+
+ _this11.cache_.sources = sources;
+
+ _this11.updateSourceCaches_(middlewareSource);
+
+ var err = _this11.src_(middlewareSource);
+
+ if (err) {
+ if (sources.length > 1) {
+ return _this11.src(sources.slice(1));
+ }
+
+ _this11.changingSrc_ = false; // We need to wrap this in a timeout to give folks a chance to add error event handlers
+
+ _this11.setTimeout(function () {
+ this.error({
+ code: 4,
+ message: this.localize(this.options_.notSupportedMessage)
+ });
+ }, 0); // we could not find an appropriate tech, but let's still notify the delegate that this is it
+ // this needs a better comment about why this is needed
+
+
+ _this11.triggerReady();
+
+ return;
+ }
+
+ setTech(mws, _this11.tech_);
+ });
+ }
+ /**
+ * Set the source object on the tech, returns a boolean that indicates whether
+ * there is a tech that can play the source or not
+ *
+ * @param {Tech~SourceObject} source
+ * The source object to set on the Tech
+ *
+ * @return {boolean}
+ * - True if there is no Tech to playback this source
+ * - False otherwise
+ *
+ * @private
+ */
+ ;
+
+ _proto.src_ = function src_(source) {
+ var _this12 = this;
+
+ var sourceTech = this.selectSource([source]);
+
+ if (!sourceTech) {
+ return true;
+ }
+
+ if (!titleCaseEquals(sourceTech.tech, this.techName_)) {
+ this.changingSrc_ = true; // load this technology with the chosen source
+
+ this.loadTech_(sourceTech.tech, sourceTech.source);
+ this.tech_.ready(function () {
+ _this12.changingSrc_ = false;
+ });
+ return false;
+ } // wait until the tech is ready to set the source
+ // and set it synchronously if possible (#2326)
+
+
+ this.ready(function () {
+ // The setSource tech method was added with source handlers
+ // so older techs won't support it
+ // We need to check the direct prototype for the case where subclasses
+ // of the tech do not support source handlers
+ if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {
+ this.techCall_('setSource', source);
+ } else {
+ this.techCall_('src', source.src);
+ }
+
+ this.changingSrc_ = false;
+ }, true);
+ return false;
+ }
+ /**
+ * Begin loading the src data.
+ */
+ ;
+
+ _proto.load = function load() {
+ this.techCall_('load');
+ }
+ /**
+ * Reset the player. Loads the first tech in the techOrder,
+ * removes all the text tracks in the existing `tech`,
+ * and calls `reset` on the `tech`.
+ */
+ ;
+
+ _proto.reset = function reset() {
+ var _this13 = this;
+
+ var PromiseClass = this.options_.Promise || window$1.Promise;
+
+ if (this.paused() || !PromiseClass) {
+ this.doReset_();
+ } else {
+ var playPromise = this.play();
+ silencePromise(playPromise.then(function () {
+ return _this13.doReset_();
+ }));
+ }
+ };
+
+ _proto.doReset_ = function doReset_() {
+ if (this.tech_) {
+ this.tech_.clearTracks('text');
+ }
+
+ this.resetCache_();
+ this.poster('');
+ this.loadTech_(this.options_.techOrder[0], null);
+ this.techCall_('reset');
+ this.resetControlBarUI_();
+
+ if (isEvented(this)) {
+ this.trigger('playerreset');
+ }
+ }
+ /**
+ * Reset Control Bar's UI by calling sub-methods that reset
+ * all of Control Bar's components
+ */
+ ;
+
+ _proto.resetControlBarUI_ = function resetControlBarUI_() {
+ this.resetProgressBar_();
+ this.resetPlaybackRate_();
+ this.resetVolumeBar_();
+ }
+ /**
+ * Reset tech's progress so progress bar is reset in the UI
+ */
+ ;
+
+ _proto.resetProgressBar_ = function resetProgressBar_() {
+ this.currentTime(0);
+ var _this$controlBar = this.controlBar,
+ durationDisplay = _this$controlBar.durationDisplay,
+ remainingTimeDisplay = _this$controlBar.remainingTimeDisplay;
+
+ if (durationDisplay) {
+ durationDisplay.updateContent();
+ }
+
+ if (remainingTimeDisplay) {
+ remainingTimeDisplay.updateContent();
+ }
+ }
+ /**
+ * Reset Playback ratio
+ */
+ ;
+
+ _proto.resetPlaybackRate_ = function resetPlaybackRate_() {
+ this.playbackRate(this.defaultPlaybackRate());
+ this.handleTechRateChange_();
+ }
+ /**
+ * Reset Volume bar
+ */
+ ;
+
+ _proto.resetVolumeBar_ = function resetVolumeBar_() {
+ this.volume(1.0);
+ this.trigger('volumechange');
+ }
+ /**
+ * Returns all of the current source objects.
+ *
+ * @return {Tech~SourceObject[]}
+ * The current source objects
+ */
+ ;
+
+ _proto.currentSources = function currentSources() {
+ var source = this.currentSource();
+ var sources = []; // assume `{}` or `{ src }`
+
+ if (Object.keys(source).length !== 0) {
+ sources.push(source);
+ }
+
+ return this.cache_.sources || sources;
+ }
+ /**
+ * Returns the current source object.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object
+ */
+ ;
+
+ _proto.currentSource = function currentSource() {
+ return this.cache_.source || {};
+ }
+ /**
+ * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4
+ * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.
+ *
+ * @return {string}
+ * The current source
+ */
+ ;
+
+ _proto.currentSrc = function currentSrc() {
+ return this.currentSource() && this.currentSource().src || '';
+ }
+ /**
+ * Get the current source type e.g. video/mp4
+ * This can allow you rebuild the current source object so that you could load the same
+ * source and tech later
+ *
+ * @return {string}
+ * The source MIME type
+ */
+ ;
+
+ _proto.currentType = function currentType() {
+ return this.currentSource() && this.currentSource().type || '';
+ }
+ /**
+ * Get or set the preload attribute
+ *
+ * @param {boolean} [value]
+ * - true means that we should preload
+ * - false means that we should not preload
+ *
+ * @return {string}
+ * The preload attribute value when getting
+ */
+ ;
+
+ _proto.preload = function preload(value) {
+ if (value !== undefined) {
+ this.techCall_('setPreload', value);
+ this.options_.preload = value;
+ return;
+ }
+
+ return this.techGet_('preload');
+ }
+ /**
+ * Get or set the autoplay option. When this is a boolean it will
+ * modify the attribute on the tech. When this is a string the attribute on
+ * the tech will be removed and `Player` will handle autoplay on loadstarts.
+ *
+ * @param {boolean|string} [value]
+ * - true: autoplay using the browser behavior
+ * - false: do not autoplay
+ * - 'play': call play() on every loadstart
+ * - 'muted': call muted() then play() on every loadstart
+ * - 'any': call play() on every loadstart. if that fails call muted() then play().
+ * - *: values other than those listed here will be set `autoplay` to true
+ *
+ * @return {boolean|string}
+ * The current value of autoplay when getting
+ */
+ ;
+
+ _proto.autoplay = function autoplay(value) {
+ // getter usage
+ if (value === undefined) {
+ return this.options_.autoplay || false;
+ }
+
+ var techAutoplay; // if the value is a valid string set it to that
+
+ if (typeof value === 'string' && /(any|play|muted)/.test(value)) {
+ this.options_.autoplay = value;
+ this.manualAutoplay_(value);
+ techAutoplay = false; // any falsy value sets autoplay to false in the browser,
+ // lets do the same
+ } else if (!value) {
+ this.options_.autoplay = false; // any other value (ie truthy) sets autoplay to true
+ } else {
+ this.options_.autoplay = true;
+ }
+
+ techAutoplay = typeof techAutoplay === 'undefined' ? this.options_.autoplay : techAutoplay; // if we don't have a tech then we do not queue up
+ // a setAutoplay call on tech ready. We do this because the
+ // autoplay option will be passed in the constructor and we
+ // do not need to set it twice
+
+ if (this.tech_) {
+ this.techCall_('setAutoplay', techAutoplay);
+ }
+ }
+ /**
+ * Set or unset the playsinline attribute.
+ * Playsinline tells the browser that non-fullscreen playback is preferred.
+ *
+ * @param {boolean} [value]
+ * - true means that we should try to play inline by default
+ * - false means that we should use the browser's default playback mode,
+ * which in most cases is inline. iOS Safari is a notable exception
+ * and plays fullscreen by default.
+ *
+ * @return {string|Player}
+ * - the current value of playsinline
+ * - the player when setting
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+ ;
+
+ _proto.playsinline = function playsinline(value) {
+ if (value !== undefined) {
+ this.techCall_('setPlaysinline', value);
+ this.options_.playsinline = value;
+ return this;
+ }
+
+ return this.techGet_('playsinline');
+ }
+ /**
+ * Get or set the loop attribute on the video element.
+ *
+ * @param {boolean} [value]
+ * - true means that we should loop the video
+ * - false means that we should not loop the video
+ *
+ * @return {boolean}
+ * The current value of loop when getting
+ */
+ ;
+
+ _proto.loop = function loop(value) {
+ if (value !== undefined) {
+ this.techCall_('setLoop', value);
+ this.options_.loop = value;
+ return;
+ }
+
+ return this.techGet_('loop');
+ }
+ /**
+ * Get or set the poster image source url
+ *
+ * @fires Player#posterchange
+ *
+ * @param {string} [src]
+ * Poster image source URL
+ *
+ * @return {string}
+ * The current value of poster when getting
+ */
+ ;
+
+ _proto.poster = function poster(src) {
+ if (src === undefined) {
+ return this.poster_;
+ } // The correct way to remove a poster is to set as an empty string
+ // other falsey values will throw errors
+
+
+ if (!src) {
+ src = '';
+ }
+
+ if (src === this.poster_) {
+ return;
+ } // update the internal poster variable
+
+
+ this.poster_ = src; // update the tech's poster
+
+ this.techCall_('setPoster', src);
+ this.isPosterFromTech_ = false; // alert components that the poster has been set
+
+ /**
+ * This event fires when the poster image is changed on the player.
+ *
+ * @event Player#posterchange
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('posterchange');
+ }
+ /**
+ * Some techs (e.g. YouTube) can provide a poster source in an
+ * asynchronous way. We want the poster component to use this
+ * poster source so that it covers up the tech's controls.
+ * (YouTube's play button). However we only want to use this
+ * source if the player user hasn't set a poster through
+ * the normal APIs.
+ *
+ * @fires Player#posterchange
+ * @listens Tech#posterchange
+ * @private
+ */
+ ;
+
+ _proto.handleTechPosterChange_ = function handleTechPosterChange_() {
+ if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {
+ var newPoster = this.tech_.poster() || '';
+
+ if (newPoster !== this.poster_) {
+ this.poster_ = newPoster;
+ this.isPosterFromTech_ = true; // Let components know the poster has changed
+
+ this.trigger('posterchange');
+ }
+ }
+ }
+ /**
+ * Get or set whether or not the controls are showing.
+ *
+ * @fires Player#controlsenabled
+ *
+ * @param {boolean} [bool]
+ * - true to turn controls on
+ * - false to turn controls off
+ *
+ * @return {boolean}
+ * The current value of controls when getting
+ */
+ ;
+
+ _proto.controls = function controls(bool) {
+ if (bool === undefined) {
+ return !!this.controls_;
+ }
+
+ bool = !!bool; // Don't trigger a change event unless it actually changed
+
+ if (this.controls_ === bool) {
+ return;
+ }
+
+ this.controls_ = bool;
+
+ if (this.usingNativeControls()) {
+ this.techCall_('setControls', bool);
+ }
+
+ if (this.controls_) {
+ this.removeClass('vjs-controls-disabled');
+ this.addClass('vjs-controls-enabled');
+ /**
+ * @event Player#controlsenabled
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('controlsenabled');
+
+ if (!this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+ } else {
+ this.removeClass('vjs-controls-enabled');
+ this.addClass('vjs-controls-disabled');
+ /**
+ * @event Player#controlsdisabled
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('controlsdisabled');
+
+ if (!this.usingNativeControls()) {
+ this.removeTechControlsListeners_();
+ }
+ }
+ }
+ /**
+ * Toggle native controls on/off. Native controls are the controls built into
+ * devices (e.g. default iPhone controls), Flash, or other techs
+ * (e.g. Vimeo Controls)
+ * **This should only be set by the current tech, because only the tech knows
+ * if it can support native controls**
+ *
+ * @fires Player#usingnativecontrols
+ * @fires Player#usingcustomcontrols
+ *
+ * @param {boolean} [bool]
+ * - true to turn native controls on
+ * - false to turn native controls off
+ *
+ * @return {boolean}
+ * The current value of native controls when getting
+ */
+ ;
+
+ _proto.usingNativeControls = function usingNativeControls(bool) {
+ if (bool === undefined) {
+ return !!this.usingNativeControls_;
+ }
+
+ bool = !!bool; // Don't trigger a change event unless it actually changed
+
+ if (this.usingNativeControls_ === bool) {
+ return;
+ }
+
+ this.usingNativeControls_ = bool;
+
+ if (this.usingNativeControls_) {
+ this.addClass('vjs-using-native-controls');
+ /**
+ * player is using the native device controls
+ *
+ * @event Player#usingnativecontrols
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('usingnativecontrols');
+ } else {
+ this.removeClass('vjs-using-native-controls');
+ /**
+ * player is using the custom HTML controls
+ *
+ * @event Player#usingcustomcontrols
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('usingcustomcontrols');
+ }
+ }
+ /**
+ * Set or get the current MediaError
+ *
+ * @fires Player#error
+ *
+ * @param {MediaError|string|number} [err]
+ * A MediaError or a string/number to be turned
+ * into a MediaError
+ *
+ * @return {MediaError|null}
+ * The current MediaError when getting (or null)
+ */
+ ;
+
+ _proto.error = function error(err) {
+ if (err === undefined) {
+ return this.error_ || null;
+ } // Suppress the first error message for no compatible source until
+ // user interaction
+
+
+ if (this.options_.suppressNotSupportedError && err && err.message && err.message === this.localize(this.options_.notSupportedMessage)) {
+ var triggerSuppressedError = function triggerSuppressedError() {
+ this.error(err);
+ };
+
+ this.options_.suppressNotSupportedError = false;
+ this.any(['click', 'touchstart'], triggerSuppressedError);
+ this.one('loadstart', function () {
+ this.off(['click', 'touchstart'], triggerSuppressedError);
+ });
+ return;
+ } // restoring to default
+
+
+ if (err === null) {
+ this.error_ = err;
+ this.removeClass('vjs-error');
+
+ if (this.errorDisplay) {
+ this.errorDisplay.close();
+ }
+
+ return;
+ }
+
+ this.error_ = new MediaError(err); // add the vjs-error classname to the player
+
+ this.addClass('vjs-error'); // log the name of the error type and any message
+ // IE11 logs "[object object]" and required you to expand message to see error object
+
+ log.error("(CODE:" + this.error_.code + " " + MediaError.errorTypes[this.error_.code] + ")", this.error_.message, this.error_);
+ /**
+ * @event Player#error
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('error');
+ return;
+ }
+ /**
+ * Report user activity
+ *
+ * @param {Object} event
+ * Event object
+ */
+ ;
+
+ _proto.reportUserActivity = function reportUserActivity(event) {
+ this.userActivity_ = true;
+ }
+ /**
+ * Get/set if user is active
+ *
+ * @fires Player#useractive
+ * @fires Player#userinactive
+ *
+ * @param {boolean} [bool]
+ * - true if the user is active
+ * - false if the user is inactive
+ *
+ * @return {boolean}
+ * The current value of userActive when getting
+ */
+ ;
+
+ _proto.userActive = function userActive(bool) {
+ if (bool === undefined) {
+ return this.userActive_;
+ }
+
+ bool = !!bool;
+
+ if (bool === this.userActive_) {
+ return;
+ }
+
+ this.userActive_ = bool;
+
+ if (this.userActive_) {
+ this.userActivity_ = true;
+ this.removeClass('vjs-user-inactive');
+ this.addClass('vjs-user-active');
+ /**
+ * @event Player#useractive
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('useractive');
+ return;
+ } // Chrome/Safari/IE have bugs where when you change the cursor it can
+ // trigger a mousemove event. This causes an issue when you're hiding
+ // the cursor when the user is inactive, and a mousemove signals user
+ // activity. Making it impossible to go into inactive mode. Specifically
+ // this happens in fullscreen when we really need to hide the cursor.
+ //
+ // When this gets resolved in ALL browsers it can be removed
+ // https://code.google.com/p/chromium/issues/detail?id=103041
+
+
+ if (this.tech_) {
+ this.tech_.one('mousemove', function (e) {
+ e.stopPropagation();
+ e.preventDefault();
+ });
+ }
+
+ this.userActivity_ = false;
+ this.removeClass('vjs-user-active');
+ this.addClass('vjs-user-inactive');
+ /**
+ * @event Player#userinactive
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('userinactive');
+ }
+ /**
+ * Listen for user activity based on timeout value
+ *
+ * @private
+ */
+ ;
+
+ _proto.listenForUserActivity_ = function listenForUserActivity_() {
+ var mouseInProgress;
+ var lastMoveX;
+ var lastMoveY;
+ var handleActivity = bind(this, this.reportUserActivity);
+
+ var handleMouseMove = function handleMouseMove(e) {
+ // #1068 - Prevent mousemove spamming
+ // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970
+ if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {
+ lastMoveX = e.screenX;
+ lastMoveY = e.screenY;
+ handleActivity();
+ }
+ };
+
+ var handleMouseDown = function handleMouseDown() {
+ handleActivity(); // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+
+ this.clearInterval(mouseInProgress); // Setting userActivity=true now and setting the interval to the same time
+ // as the activityCheck interval (250) should ensure we never miss the
+ // next activityCheck
+
+ mouseInProgress = this.setInterval(handleActivity, 250);
+ };
+
+ var handleMouseUp = function handleMouseUp(event) {
+ handleActivity(); // Stop the interval that maintains activity if the mouse/touch is down
+
+ this.clearInterval(mouseInProgress);
+ }; // Any mouse movement will be considered user activity
+
+
+ this.on('mousedown', handleMouseDown);
+ this.on('mousemove', handleMouseMove);
+ this.on('mouseup', handleMouseUp);
+ var controlBar = this.getChild('controlBar'); // Fixes bug on Android & iOS where when tapping progressBar (when control bar is displayed)
+ // controlBar would no longer be hidden by default timeout.
+
+ if (controlBar && !IS_IOS && !IS_ANDROID) {
+ controlBar.on('mouseenter', function (event) {
+ this.player().cache_.inactivityTimeout = this.player().options_.inactivityTimeout;
+ this.player().options_.inactivityTimeout = 0;
+ });
+ controlBar.on('mouseleave', function (event) {
+ this.player().options_.inactivityTimeout = this.player().cache_.inactivityTimeout;
+ });
+ } // Listen for keyboard navigation
+ // Shouldn't need to use inProgress interval because of key repeat
+
+
+ this.on('keydown', handleActivity);
+ this.on('keyup', handleActivity); // Run an interval every 250 milliseconds instead of stuffing everything into
+ // the mousemove/touchmove function itself, to prevent performance degradation.
+ // `this.reportUserActivity` simply sets this.userActivity_ to true, which
+ // then gets picked up by this loop
+ // http://ejohn.org/blog/learning-from-twitter/
+
+ var inactivityTimeout;
+ this.setInterval(function () {
+ // Check to see if mouse/touch activity has happened
+ if (!this.userActivity_) {
+ return;
+ } // Reset the activity tracker
+
+
+ this.userActivity_ = false; // If the user state was inactive, set the state to active
+
+ this.userActive(true); // Clear any existing inactivity timeout to start the timer over
+
+ this.clearTimeout(inactivityTimeout);
+ var timeout = this.options_.inactivityTimeout;
+
+ if (timeout <= 0) {
+ return;
+ } // In <timeout> milliseconds, if no more activity has occurred the
+ // user will be considered inactive
+
+
+ inactivityTimeout = this.setTimeout(function () {
+ // Protect against the case where the inactivityTimeout can trigger just
+ // before the next user activity is picked up by the activity check loop
+ // causing a flicker
+ if (!this.userActivity_) {
+ this.userActive(false);
+ }
+ }, timeout);
+ }, 250);
+ }
+ /**
+ * Gets or sets the current playback rate. A playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed
+ * playback, for instance.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate
+ *
+ * @param {number} [rate]
+ * New playback rate to set.
+ *
+ * @return {number}
+ * The current playback rate when getting or 1.0
+ */
+ ;
+
+ _proto.playbackRate = function playbackRate(rate) {
+ if (rate !== undefined) {
+ // NOTE: this.cache_.lastPlaybackRate is set from the tech handler
+ // that is registered above
+ this.techCall_('setPlaybackRate', rate);
+ return;
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');
+ }
+
+ return 1.0;
+ }
+ /**
+ * Gets or sets the current default playback rate. A default playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.
+ * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not
+ * not the current playbackRate.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate
+ *
+ * @param {number} [rate]
+ * New default playback rate to set.
+ *
+ * @return {number|Player}
+ * - The default playback rate when getting or 1.0
+ * - the player when setting
+ */
+ ;
+
+ _proto.defaultPlaybackRate = function defaultPlaybackRate(rate) {
+ if (rate !== undefined) {
+ return this.techCall_('setDefaultPlaybackRate', rate);
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.techGet_('defaultPlaybackRate');
+ }
+
+ return 1.0;
+ }
+ /**
+ * Gets or sets the audio flag
+ *
+ * @param {boolean} bool
+ * - true signals that this is an audio player
+ * - false signals that this is not an audio player
+ *
+ * @return {boolean}
+ * The current value of isAudio when getting
+ */
+ ;
+
+ _proto.isAudio = function isAudio(bool) {
+ if (bool !== undefined) {
+ this.isAudio_ = !!bool;
+ return;
+ }
+
+ return !!this.isAudio_;
+ }
+ /**
+ * A helper method for adding a {@link TextTrack} to our
+ * {@link TextTrackList}.
+ *
+ * In addition to the W3C settings we allow adding additional info through options.
+ *
+ * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack
+ *
+ * @param {string} [kind]
+ * the kind of TextTrack you are adding
+ *
+ * @param {string} [label]
+ * the label to give the TextTrack label
+ *
+ * @param {string} [language]
+ * the language to set on the TextTrack
+ *
+ * @return {TextTrack|undefined}
+ * the TextTrack that was added or undefined
+ * if there is no tech
+ */
+ ;
+
+ _proto.addTextTrack = function addTextTrack(kind, label, language) {
+ if (this.tech_) {
+ return this.tech_.addTextTrack(kind, label, language);
+ }
+ }
+ /**
+ * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}. It will
+ * automatically removed from the video element whenever the source changes, unless
+ * manualCleanup is set to false.
+ *
+ * @param {Object} options
+ * Options to pass to {@link HTMLTrackElement} during creation. See
+ * {@link HTMLTrackElement} for object properties that you should use.
+ *
+ * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ *
+ * @return {HtmlTrackElement}
+ * the HTMLTrackElement that was created and added
+ * to the HtmlTrackElementList and the remote
+ * TextTrackList
+ *
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+ ;
+
+ _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ if (this.tech_) {
+ return this.tech_.addRemoteTextTrack(options, manualCleanup);
+ }
+ }
+ /**
+ * Remove a remote {@link TextTrack} from the respective
+ * {@link TextTrackList} and {@link HtmlTrackElementList}.
+ *
+ * @param {Object} track
+ * Remote {@link TextTrack} to remove
+ *
+ * @return {undefined}
+ * does not return anything
+ */
+ ;
+
+ _proto.removeRemoteTextTrack = function removeRemoteTextTrack(obj) {
+ if (obj === void 0) {
+ obj = {};
+ }
+
+ var _obj = obj,
+ track = _obj.track;
+
+ if (!track) {
+ track = obj;
+ } // destructure the input into an object with a track argument, defaulting to arguments[0]
+ // default the whole argument to an empty object if nothing was passed in
+
+
+ if (this.tech_) {
+ return this.tech_.removeRemoteTextTrack(track);
+ }
+ }
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object|undefined}
+ * An object with supported media playback quality metrics or undefined if there
+ * is no tech or the tech does not support it.
+ */
+ ;
+
+ _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return this.techGet_('getVideoPlaybackQuality');
+ }
+ /**
+ * Get video width
+ *
+ * @return {number}
+ * current video width
+ */
+ ;
+
+ _proto.videoWidth = function videoWidth() {
+ return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;
+ }
+ /**
+ * Get video height
+ *
+ * @return {number}
+ * current video height
+ */
+ ;
+
+ _proto.videoHeight = function videoHeight() {
+ return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;
+ }
+ /**
+ * The player's language code
+ * NOTE: The language should be set in the player options if you want the
+ * the controls to be built with a specific language. Changing the language
+ * later will not update controls text.
+ *
+ * @param {string} [code]
+ * the language code to set the player to
+ *
+ * @return {string}
+ * The current language code when getting
+ */
+ ;
+
+ _proto.language = function language(code) {
+ if (code === undefined) {
+ return this.language_;
+ }
+
+ this.language_ = String(code).toLowerCase();
+ }
+ /**
+ * Get the player's language dictionary
+ * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time
+ * Languages specified directly in the player options have precedence
+ *
+ * @return {Array}
+ * An array of of supported languages
+ */
+ ;
+
+ _proto.languages = function languages() {
+ return mergeOptions(Player.prototype.options_.languages, this.languages_);
+ }
+ /**
+ * returns a JavaScript object reperesenting the current track
+ * information. **DOES not return it as JSON**
+ *
+ * @return {Object}
+ * Object representing the current of track info
+ */
+ ;
+
+ _proto.toJSON = function toJSON() {
+ var options = mergeOptions(this.options_);
+ var tracks = options.tracks;
+ options.tracks = [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i]; // deep merge tracks and null out player so no circular references
+
+ track = mergeOptions(track);
+ track.player = undefined;
+ options.tracks[i] = track;
+ }
+
+ return options;
+ }
+ /**
+ * Creates a simple modal dialog (an instance of the {@link ModalDialog}
+ * component) that immediately overlays the player with arbitrary
+ * content and removes itself when closed.
+ *
+ * @param {string|Function|Element|Array|null} content
+ * Same as {@link ModalDialog#content}'s param of the same name.
+ * The most straight-forward usage is to provide a string or DOM
+ * element.
+ *
+ * @param {Object} [options]
+ * Extra options which will be passed on to the {@link ModalDialog}.
+ *
+ * @return {ModalDialog}
+ * the {@link ModalDialog} that was created
+ */
+ ;
+
+ _proto.createModal = function createModal(content, options) {
+ var _this14 = this;
+
+ options = options || {};
+ options.content = content || '';
+ var modal = new ModalDialog(this, options);
+ this.addChild(modal);
+ modal.on('dispose', function () {
+ _this14.removeChild(modal);
+ });
+ modal.open();
+ return modal;
+ }
+ /**
+ * Change breakpoint classes when the player resizes.
+ *
+ * @private
+ */
+ ;
+
+ _proto.updateCurrentBreakpoint_ = function updateCurrentBreakpoint_() {
+ if (!this.responsive()) {
+ return;
+ }
+
+ var currentBreakpoint = this.currentBreakpoint();
+ var currentWidth = this.currentWidth();
+
+ for (var i = 0; i < BREAKPOINT_ORDER.length; i++) {
+ var candidateBreakpoint = BREAKPOINT_ORDER[i];
+ var maxWidth = this.breakpoints_[candidateBreakpoint];
+
+ if (currentWidth <= maxWidth) {
+ // The current breakpoint did not change, nothing to do.
+ if (currentBreakpoint === candidateBreakpoint) {
+ return;
+ } // Only remove a class if there is a current breakpoint.
+
+
+ if (currentBreakpoint) {
+ this.removeClass(BREAKPOINT_CLASSES[currentBreakpoint]);
+ }
+
+ this.addClass(BREAKPOINT_CLASSES[candidateBreakpoint]);
+ this.breakpoint_ = candidateBreakpoint;
+ break;
+ }
+ }
+ }
+ /**
+ * Removes the current breakpoint.
+ *
+ * @private
+ */
+ ;
+
+ _proto.removeCurrentBreakpoint_ = function removeCurrentBreakpoint_() {
+ var className = this.currentBreakpointClass();
+ this.breakpoint_ = '';
+
+ if (className) {
+ this.removeClass(className);
+ }
+ }
+ /**
+ * Get or set breakpoints on the player.
+ *
+ * Calling this method with an object or `true` will remove any previous
+ * custom breakpoints and start from the defaults again.
+ *
+ * @param {Object|boolean} [breakpoints]
+ * If an object is given, it can be used to provide custom
+ * breakpoints. If `true` is given, will set default breakpoints.
+ * If this argument is not given, will simply return the current
+ * breakpoints.
+ *
+ * @param {number} [breakpoints.tiny]
+ * The maximum width for the "vjs-layout-tiny" class.
+ *
+ * @param {number} [breakpoints.xsmall]
+ * The maximum width for the "vjs-layout-x-small" class.
+ *
+ * @param {number} [breakpoints.small]
+ * The maximum width for the "vjs-layout-small" class.
+ *
+ * @param {number} [breakpoints.medium]
+ * The maximum width for the "vjs-layout-medium" class.
+ *
+ * @param {number} [breakpoints.large]
+ * The maximum width for the "vjs-layout-large" class.
+ *
+ * @param {number} [breakpoints.xlarge]
+ * The maximum width for the "vjs-layout-x-large" class.
+ *
+ * @param {number} [breakpoints.huge]
+ * The maximum width for the "vjs-layout-huge" class.
+ *
+ * @return {Object}
+ * An object mapping breakpoint names to maximum width values.
+ */
+ ;
+
+ _proto.breakpoints = function breakpoints(_breakpoints) {
+ // Used as a getter.
+ if (_breakpoints === undefined) {
+ return assign(this.breakpoints_);
+ }
+
+ this.breakpoint_ = '';
+ this.breakpoints_ = assign({}, DEFAULT_BREAKPOINTS, _breakpoints); // When breakpoint definitions change, we need to update the currently
+ // selected breakpoint.
+
+ this.updateCurrentBreakpoint_(); // Clone the breakpoints before returning.
+
+ return assign(this.breakpoints_);
+ }
+ /**
+ * Get or set a flag indicating whether or not this player should adjust
+ * its UI based on its dimensions.
+ *
+ * @param {boolean} value
+ * Should be `true` if the player should adjust its UI based on its
+ * dimensions; otherwise, should be `false`.
+ *
+ * @return {boolean}
+ * Will be `true` if this player should adjust its UI based on its
+ * dimensions; otherwise, will be `false`.
+ */
+ ;
+
+ _proto.responsive = function responsive(value) {
+ // Used as a getter.
+ if (value === undefined) {
+ return this.responsive_;
+ }
+
+ value = Boolean(value);
+ var current = this.responsive_; // Nothing changed.
+
+ if (value === current) {
+ return;
+ } // The value actually changed, set it.
+
+
+ this.responsive_ = value; // Start listening for breakpoints and set the initial breakpoint if the
+ // player is now responsive.
+
+ if (value) {
+ this.on('playerresize', this.updateCurrentBreakpoint_);
+ this.updateCurrentBreakpoint_(); // Stop listening for breakpoints if the player is no longer responsive.
+ } else {
+ this.off('playerresize', this.updateCurrentBreakpoint_);
+ this.removeCurrentBreakpoint_();
+ }
+
+ return value;
+ }
+ /**
+ * Get current breakpoint name, if any.
+ *
+ * @return {string}
+ * If there is currently a breakpoint set, returns a the key from the
+ * breakpoints object matching it. Otherwise, returns an empty string.
+ */
+ ;
+
+ _proto.currentBreakpoint = function currentBreakpoint() {
+ return this.breakpoint_;
+ }
+ /**
+ * Get the current breakpoint class name.
+ *
+ * @return {string}
+ * The matching class name (e.g. `"vjs-layout-tiny"` or
+ * `"vjs-layout-large"`) for the current breakpoint. Empty string if
+ * there is no current breakpoint.
+ */
+ ;
+
+ _proto.currentBreakpointClass = function currentBreakpointClass() {
+ return BREAKPOINT_CLASSES[this.breakpoint_] || '';
+ }
+ /**
+ * An object that describes a single piece of media.
+ *
+ * Properties that are not part of this type description will be retained; so,
+ * this can be viewed as a generic metadata storage mechanism as well.
+ *
+ * @see {@link https://wicg.github.io/mediasession/#the-mediametadata-interface}
+ * @typedef {Object} Player~MediaObject
+ *
+ * @property {string} [album]
+ * Unused, except if this object is passed to the `MediaSession`
+ * API.
+ *
+ * @property {string} [artist]
+ * Unused, except if this object is passed to the `MediaSession`
+ * API.
+ *
+ * @property {Object[]} [artwork]
+ * Unused, except if this object is passed to the `MediaSession`
+ * API. If not specified, will be populated via the `poster`, if
+ * available.
+ *
+ * @property {string} [poster]
+ * URL to an image that will display before playback.
+ *
+ * @property {Tech~SourceObject|Tech~SourceObject[]|string} [src]
+ * A single source object, an array of source objects, or a string
+ * referencing a URL to a media source. It is _highly recommended_
+ * that an object or array of objects is used here, so that source
+ * selection algorithms can take the `type` into account.
+ *
+ * @property {string} [title]
+ * Unused, except if this object is passed to the `MediaSession`
+ * API.
+ *
+ * @property {Object[]} [textTracks]
+ * An array of objects to be used to create text tracks, following
+ * the {@link https://www.w3.org/TR/html50/embedded-content-0.html#the-track-element|native track element format}.
+ * For ease of removal, these will be created as "remote" text
+ * tracks and set to automatically clean up on source changes.
+ *
+ * These objects may have properties like `src`, `kind`, `label`,
+ * and `language`, see {@link Tech#createRemoteTextTrack}.
+ */
+
+ /**
+ * Populate the player using a {@link Player~MediaObject|MediaObject}.
+ *
+ * @param {Player~MediaObject} media
+ * A media object.
+ *
+ * @param {Function} ready
+ * A callback to be called when the player is ready.
+ */
+ ;
+
+ _proto.loadMedia = function loadMedia(media, ready) {
+ var _this15 = this;
+
+ if (!media || typeof media !== 'object') {
+ return;
+ }
+
+ this.reset(); // Clone the media object so it cannot be mutated from outside.
+
+ this.cache_.media = mergeOptions(media);
+ var _this$cache_$media = this.cache_.media,
+ artwork = _this$cache_$media.artwork,
+ poster = _this$cache_$media.poster,
+ src = _this$cache_$media.src,
+ textTracks = _this$cache_$media.textTracks; // If `artwork` is not given, create it using `poster`.
+
+ if (!artwork && poster) {
+ this.cache_.media.artwork = [{
+ src: poster,
+ type: getMimetype(poster)
+ }];
+ }
+
+ if (src) {
+ this.src(src);
+ }
+
+ if (poster) {
+ this.poster(poster);
+ }
+
+ if (Array.isArray(textTracks)) {
+ textTracks.forEach(function (tt) {
+ return _this15.addRemoteTextTrack(tt, false);
+ });
+ }
+
+ this.ready(ready);
+ }
+ /**
+ * Get a clone of the current {@link Player~MediaObject} for this player.
+ *
+ * If the `loadMedia` method has not been used, will attempt to return a
+ * {@link Player~MediaObject} based on the current state of the player.
+ *
+ * @return {Player~MediaObject}
+ */
+ ;
+
+ _proto.getMedia = function getMedia() {
+ if (!this.cache_.media) {
+ var poster = this.poster();
+ var src = this.currentSources();
+ var textTracks = Array.prototype.map.call(this.remoteTextTracks(), function (tt) {
+ return {
+ kind: tt.kind,
+ label: tt.label,
+ language: tt.language,
+ src: tt.src
+ };
+ });
+ var media = {
+ src: src,
+ textTracks: textTracks
+ };
+
+ if (poster) {
+ media.poster = poster;
+ media.artwork = [{
+ src: media.poster,
+ type: getMimetype(media.poster)
+ }];
+ }
+
+ return media;
+ }
+
+ return mergeOptions(this.cache_.media);
+ }
+ /**
+ * Gets tag settings
+ *
+ * @param {Element} tag
+ * The player tag
+ *
+ * @return {Object}
+ * An object containing all of the settings
+ * for a player tag
+ */
+ ;
+
+ Player.getTagSettings = function getTagSettings(tag) {
+ var baseOptions = {
+ sources: [],
+ tracks: []
+ };
+ var tagOptions = getAttributes(tag);
+ var dataSetup = tagOptions['data-setup'];
+
+ if (hasClass(tag, 'vjs-fill')) {
+ tagOptions.fill = true;
+ }
+
+ if (hasClass(tag, 'vjs-fluid')) {
+ tagOptions.fluid = true;
+ } // Check if data-setup attr exists.
+
+
+ if (dataSetup !== null) {
+ // Parse options JSON
+ // If empty string, make it a parsable json object.
+ var _safeParseTuple = safeParseTuple(dataSetup || '{}'),
+ err = _safeParseTuple[0],
+ data = _safeParseTuple[1];
+
+ if (err) {
+ log.error(err);
+ }
+
+ assign(tagOptions, data);
+ }
+
+ assign(baseOptions, tagOptions); // Get tag children settings
+
+ if (tag.hasChildNodes()) {
+ var children = tag.childNodes;
+
+ for (var i = 0, j = children.length; i < j; i++) {
+ var child = children[i]; // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/
+
+ var childName = child.nodeName.toLowerCase();
+
+ if (childName === 'source') {
+ baseOptions.sources.push(getAttributes(child));
+ } else if (childName === 'track') {
+ baseOptions.tracks.push(getAttributes(child));
+ }
+ }
+ }
+
+ return baseOptions;
+ }
+ /**
+ * Determine whether or not flexbox is supported
+ *
+ * @return {boolean}
+ * - true if flexbox is supported
+ * - false if flexbox is not supported
+ */
+ ;
+
+ _proto.flexNotSupported_ = function flexNotSupported_() {
+ var elem = document.createElement('i'); // Note: We don't actually use flexBasis (or flexOrder), but it's one of the more
+ // common flex features that we can rely on when checking for flex support.
+
+ return !('flexBasis' in elem.style || 'webkitFlexBasis' in elem.style || 'mozFlexBasis' in elem.style || 'msFlexBasis' in elem.style || // IE10-specific (2012 flex spec), available for completeness
+ 'msFlexOrder' in elem.style);
+ };
+
+ return Player;
+}(Component);
+/**
+ * Get the {@link VideoTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist
+ *
+ * @return {VideoTrackList}
+ * the current video track list
+ *
+ * @method Player.prototype.videoTracks
+ */
+
+/**
+ * Get the {@link AudioTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist
+ *
+ * @return {AudioTrackList}
+ * the current audio track list
+ *
+ * @method Player.prototype.audioTracks
+ */
+
+/**
+ * Get the {@link TextTrackList}
+ *
+ * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks
+ *
+ * @return {TextTrackList}
+ * the current text track list
+ *
+ * @method Player.prototype.textTracks
+ */
+
+/**
+ * Get the remote {@link TextTrackList}
+ *
+ * @return {TextTrackList}
+ * The current remote text track list
+ *
+ * @method Player.prototype.remoteTextTracks
+ */
+
+/**
+ * Get the remote {@link HtmlTrackElementList} tracks.
+ *
+ * @return {HtmlTrackElementList}
+ * The current remote text track element list
+ *
+ * @method Player.prototype.remoteTextTrackEls
+ */
+
+
+ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ Player.prototype[props.getterName] = function () {
+ if (this.tech_) {
+ return this.tech_[props.getterName]();
+ } // if we have not yet loadTech_, we create {video,audio,text}Tracks_
+ // these will be passed to the tech during loading
+
+
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+});
+/**
+ * Global enumeration of players.
+ *
+ * The keys are the player IDs and the values are either the {@link Player}
+ * instance or `null` for disposed players.
+ *
+ * @type {Object}
+ */
+
+Player.players = {};
+var navigator = window$1.navigator;
+/*
+ * Player instance options, surfaced using options
+ * options = Player.prototype.options_
+ * Make changes in options, not here.
+ *
+ * @type {Object}
+ * @private
+ */
+
+Player.prototype.options_ = {
+ // Default order of fallback technology
+ techOrder: Tech.defaultTechOrder_,
+ html5: {},
+ flash: {},
+ // default inactivity timeout
+ inactivityTimeout: 2000,
+ // default playback rates
+ playbackRates: [],
+ // Add playback rate selection by adding rates
+ // 'playbackRates': [0.5, 1, 1.5, 2],
+ liveui: false,
+ // Included control sets
+ children: ['mediaLoader', 'posterImage', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'liveTracker', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],
+ language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',
+ // locales and their language translations
+ languages: {},
+ // Default message to show when a video cannot be played.
+ notSupportedMessage: 'No compatible source was found for this media.',
+ fullscreen: {
+ options: {
+ navigationUI: 'hide'
+ }
+ },
+ breakpoints: {},
+ responsive: false
+};
+[
+/**
+ * Returns whether or not the player is in the "ended" state.
+ *
+ * @return {Boolean} True if the player is in the ended state, false if not.
+ * @method Player#ended
+ */
+'ended',
+/**
+ * Returns whether or not the player is in the "seeking" state.
+ *
+ * @return {Boolean} True if the player is in the seeking state, false if not.
+ * @method Player#seeking
+ */
+'seeking',
+/**
+ * Returns the TimeRanges of the media that are currently available
+ * for seeking to.
+ *
+ * @return {TimeRanges} the seekable intervals of the media timeline
+ * @method Player#seekable
+ */
+'seekable',
+/**
+ * Returns the current state of network activity for the element, from
+ * the codes in the list below.
+ * - NETWORK_EMPTY (numeric value 0)
+ * The element has not yet been initialised. All attributes are in
+ * their initial states.
+ * - NETWORK_IDLE (numeric value 1)
+ * The element's resource selection algorithm is active and has
+ * selected a resource, but it is not actually using the network at
+ * this time.
+ * - NETWORK_LOADING (numeric value 2)
+ * The user agent is actively trying to download data.
+ * - NETWORK_NO_SOURCE (numeric value 3)
+ * The element's resource selection algorithm is active, but it has
+ * not yet found a resource to use.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states
+ * @return {number} the current network activity state
+ * @method Player#networkState
+ */
+'networkState',
+/**
+ * Returns a value that expresses the current state of the element
+ * with respect to rendering the current playback position, from the
+ * codes in the list below.
+ * - HAVE_NOTHING (numeric value 0)
+ * No information regarding the media resource is available.
+ * - HAVE_METADATA (numeric value 1)
+ * Enough of the resource has been obtained that the duration of the
+ * resource is available.
+ * - HAVE_CURRENT_DATA (numeric value 2)
+ * Data for the immediate current playback position is available.
+ * - HAVE_FUTURE_DATA (numeric value 3)
+ * Data for the immediate current playback position is available, as
+ * well as enough data for the user agent to advance the current
+ * playback position in the direction of playback.
+ * - HAVE_ENOUGH_DATA (numeric value 4)
+ * The user agent estimates that enough data is available for
+ * playback to proceed uninterrupted.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate
+ * @return {number} the current playback rendering state
+ * @method Player#readyState
+ */
+'readyState'].forEach(function (fn) {
+ Player.prototype[fn] = function () {
+ return this.techGet_(fn);
+ };
+});
+TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ Player.prototype["handleTech" + toTitleCase(event) + "_"] = function () {
+ return this.trigger(event);
+ };
+});
+/**
+ * Fired when the player has initial duration and dimension information
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Fired when the player has downloaded data at the current playback position
+ *
+ * @event Player#loadeddata
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Fired when the current playback position has changed *
+ * During playback this is fired every 15-250 milliseconds, depending on the
+ * playback technology in use.
+ *
+ * @event Player#timeupdate
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Fired when the volume changes
+ *
+ * @event Player#volumechange
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Reports whether or not a player has a plugin available.
+ *
+ * This does not report whether or not the plugin has ever been initialized
+ * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.
+ *
+ * @method Player#hasPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player has the requested plugin available.
+ */
+
+/**
+ * Reports whether or not a player is using a plugin by name.
+ *
+ * For basic plugins, this only reports whether the plugin has _ever_ been
+ * initialized on this player.
+ *
+ * @method Player#usingPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player is using the requested plugin.
+ */
+
+Component.registerComponent('Player', Player);
+
+/**
+ * The base plugin name.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+
+var BASE_PLUGIN_NAME = 'plugin';
+/**
+ * The key on which a player's active plugins cache is stored.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+
+var PLUGIN_CACHE_KEY = 'activePlugins_';
+/**
+ * Stores registered plugins in a private space.
+ *
+ * @private
+ * @type {Object}
+ */
+
+var pluginStorage = {};
+/**
+ * Reports whether or not a plugin has been registered.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not the plugin has been registered.
+ */
+
+var pluginExists = function pluginExists(name) {
+ return pluginStorage.hasOwnProperty(name);
+};
+/**
+ * Get a single registered plugin by name.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {Function|undefined}
+ * The plugin (or undefined).
+ */
+
+
+var getPlugin = function getPlugin(name) {
+ return pluginExists(name) ? pluginStorage[name] : undefined;
+};
+/**
+ * Marks a plugin as "active" on a player.
+ *
+ * Also, ensures that the player has an object for tracking active plugins.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ */
+
+
+var markPluginAsActive = function markPluginAsActive(player, name) {
+ player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};
+ player[PLUGIN_CACHE_KEY][name] = true;
+};
+/**
+ * Triggers a pair of plugin setup events.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {Plugin~PluginEventHash} hash
+ * A plugin event hash.
+ *
+ * @param {boolean} [before]
+ * If true, prefixes the event name with "before". In other words,
+ * use this to trigger "beforepluginsetup" instead of "pluginsetup".
+ */
+
+
+var triggerSetupEvent = function triggerSetupEvent(player, hash, before) {
+ var eventName = (before ? 'before' : '') + 'pluginsetup';
+ player.trigger(eventName, hash);
+ player.trigger(eventName + ':' + hash.name, hash);
+};
+/**
+ * Takes a basic plugin function and returns a wrapper function which marks
+ * on the player that the plugin has been activated.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Function} plugin
+ * The basic plugin.
+ *
+ * @return {Function}
+ * A wrapper function for the given plugin.
+ */
+
+
+var createBasicPlugin = function createBasicPlugin(name, plugin) {
+ var basicPluginWrapper = function basicPluginWrapper() {
+ // We trigger the "beforepluginsetup" and "pluginsetup" events on the player
+ // regardless, but we want the hash to be consistent with the hash provided
+ // for advanced plugins.
+ //
+ // The only potentially counter-intuitive thing here is the `instance` in
+ // the "pluginsetup" event is the value returned by the `plugin` function.
+ triggerSetupEvent(this, {
+ name: name,
+ plugin: plugin,
+ instance: null
+ }, true);
+ var instance = plugin.apply(this, arguments);
+ markPluginAsActive(this, name);
+ triggerSetupEvent(this, {
+ name: name,
+ plugin: plugin,
+ instance: instance
+ });
+ return instance;
+ };
+
+ Object.keys(plugin).forEach(function (prop) {
+ basicPluginWrapper[prop] = plugin[prop];
+ });
+ return basicPluginWrapper;
+};
+/**
+ * Takes a plugin sub-class and returns a factory function for generating
+ * instances of it.
+ *
+ * This factory function will replace itself with an instance of the requested
+ * sub-class of Plugin.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Plugin} PluginSubClass
+ * The advanced plugin.
+ *
+ * @return {Function}
+ */
+
+
+var createPluginFactory = function createPluginFactory(name, PluginSubClass) {
+ // Add a `name` property to the plugin prototype so that each plugin can
+ // refer to itself by name.
+ PluginSubClass.prototype.name = name;
+ return function () {
+ triggerSetupEvent(this, {
+ name: name,
+ plugin: PluginSubClass,
+ instance: null
+ }, true);
+
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var instance = _construct(PluginSubClass, [this].concat(args)); // The plugin is replaced by a function that returns the current instance.
+
+
+ this[name] = function () {
+ return instance;
+ };
+
+ triggerSetupEvent(this, instance.getEventHash());
+ return instance;
+ };
+};
+/**
+ * Parent class for all advanced plugins.
+ *
+ * @mixes module:evented~EventedMixin
+ * @mixes module:stateful~StatefulMixin
+ * @fires Player#beforepluginsetup
+ * @fires Player#beforepluginsetup:$name
+ * @fires Player#pluginsetup
+ * @fires Player#pluginsetup:$name
+ * @listens Player#dispose
+ * @throws {Error}
+ * If attempting to instantiate the base {@link Plugin} class
+ * directly instead of via a sub-class.
+ */
+
+
+var Plugin =
+/*#__PURE__*/
+function () {
+ /**
+ * Creates an instance of this class.
+ *
+ * Sub-classes should call `super` to ensure plugins are properly initialized.
+ *
+ * @param {Player} player
+ * A Video.js player instance.
+ */
+ function Plugin(player) {
+ if (this.constructor === Plugin) {
+ throw new Error('Plugin must be sub-classed; not directly instantiated.');
+ }
+
+ this.player = player; // Make this object evented, but remove the added `trigger` method so we
+ // use the prototype version instead.
+
+ evented(this);
+ delete this.trigger;
+ stateful(this, this.constructor.defaultState);
+ markPluginAsActive(player, this.name); // Auto-bind the dispose method so we can use it as a listener and unbind
+ // it later easily.
+
+ this.dispose = bind(this, this.dispose); // If the player is disposed, dispose the plugin.
+
+ player.on('dispose', this.dispose);
+ }
+ /**
+ * Get the version of the plugin that was set on <pluginName>.VERSION
+ */
+
+
+ var _proto = Plugin.prototype;
+
+ _proto.version = function version() {
+ return this.constructor.VERSION;
+ }
+ /**
+ * Each event triggered by plugins includes a hash of additional data with
+ * conventional properties.
+ *
+ * This returns that object or mutates an existing hash.
+ *
+ * @param {Object} [hash={}]
+ * An object to be used as event an event hash.
+ *
+ * @return {Plugin~PluginEventHash}
+ * An event hash object with provided properties mixed-in.
+ */
+ ;
+
+ _proto.getEventHash = function getEventHash(hash) {
+ if (hash === void 0) {
+ hash = {};
+ }
+
+ hash.name = this.name;
+ hash.plugin = this.constructor;
+ hash.instance = this;
+ return hash;
+ }
+ /**
+ * Triggers an event on the plugin object and overrides
+ * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash={}]
+ * Additional data hash to merge with a
+ * {@link Plugin~PluginEventHash|PluginEventHash}.
+ *
+ * @return {boolean}
+ * Whether or not default was prevented.
+ */
+ ;
+
+ _proto.trigger = function trigger$1(event, hash) {
+ if (hash === void 0) {
+ hash = {};
+ }
+
+ return trigger(this.eventBusEl_, event, this.getEventHash(hash));
+ }
+ /**
+ * Handles "statechanged" events on the plugin. No-op by default, override by
+ * subclassing.
+ *
+ * @abstract
+ * @param {Event} e
+ * An event object provided by a "statechanged" event.
+ *
+ * @param {Object} e.changes
+ * An object describing changes that occurred with the "statechanged"
+ * event.
+ */
+ ;
+
+ _proto.handleStateChanged = function handleStateChanged(e) {}
+ /**
+ * Disposes a plugin.
+ *
+ * Subclasses can override this if they want, but for the sake of safety,
+ * it's probably best to subscribe the "dispose" event.
+ *
+ * @fires Plugin#dispose
+ */
+ ;
+
+ _proto.dispose = function dispose() {
+ var name = this.name,
+ player = this.player;
+ /**
+ * Signals that a advanced plugin is about to be disposed.
+ *
+ * @event Plugin#dispose
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('dispose');
+ this.off();
+ player.off('dispose', this.dispose); // Eliminate any possible sources of leaking memory by clearing up
+ // references between the player and the plugin instance and nulling out
+ // the plugin's state and replacing methods with a function that throws.
+
+ player[PLUGIN_CACHE_KEY][name] = false;
+ this.player = this.state = null; // Finally, replace the plugin name on the player with a new factory
+ // function, so that the plugin is ready to be set up again.
+
+ player[name] = createPluginFactory(name, pluginStorage[name]);
+ }
+ /**
+ * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).
+ *
+ * @param {string|Function} plugin
+ * If a string, matches the name of a plugin. If a function, will be
+ * tested directly.
+ *
+ * @return {boolean}
+ * Whether or not a plugin is a basic plugin.
+ */
+ ;
+
+ Plugin.isBasic = function isBasic(plugin) {
+ var p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;
+ return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);
+ }
+ /**
+ * Register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @return {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+ ;
+
+ Plugin.registerPlugin = function registerPlugin(name, plugin) {
+ if (typeof name !== 'string') {
+ throw new Error("Illegal plugin name, \"" + name + "\", must be a string, was " + typeof name + ".");
+ }
+
+ if (pluginExists(name)) {
+ log.warn("A plugin named \"" + name + "\" already exists. You may want to avoid re-registering plugins!");
+ } else if (Player.prototype.hasOwnProperty(name)) {
+ throw new Error("Illegal plugin name, \"" + name + "\", cannot share a name with an existing player method!");
+ }
+
+ if (typeof plugin !== 'function') {
+ throw new Error("Illegal plugin for \"" + name + "\", must be a function, was " + typeof plugin + ".");
+ }
+
+ pluginStorage[name] = plugin; // Add a player prototype method for all sub-classed plugins (but not for
+ // the base Plugin class).
+
+ if (name !== BASE_PLUGIN_NAME) {
+ if (Plugin.isBasic(plugin)) {
+ Player.prototype[name] = createBasicPlugin(name, plugin);
+ } else {
+ Player.prototype[name] = createPluginFactory(name, plugin);
+ }
+ }
+
+ return plugin;
+ }
+ /**
+ * De-register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be de-registered. Must be a string that
+ * matches an existing plugin.
+ *
+ * @throws {Error}
+ * If an attempt is made to de-register the base plugin.
+ */
+ ;
+
+ Plugin.deregisterPlugin = function deregisterPlugin(name) {
+ if (name === BASE_PLUGIN_NAME) {
+ throw new Error('Cannot de-register base plugin.');
+ }
+
+ if (pluginExists(name)) {
+ delete pluginStorage[name];
+ delete Player.prototype[name];
+ }
+ }
+ /**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @return {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+ ;
+
+ Plugin.getPlugins = function getPlugins(names) {
+ if (names === void 0) {
+ names = Object.keys(pluginStorage);
+ }
+
+ var result;
+ names.forEach(function (name) {
+ var plugin = getPlugin(name);
+
+ if (plugin) {
+ result = result || {};
+ result[name] = plugin;
+ }
+ });
+ return result;
+ }
+ /**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {string}
+ * The plugin's version or an empty string.
+ */
+ ;
+
+ Plugin.getPluginVersion = function getPluginVersion(name) {
+ var plugin = getPlugin(name);
+ return plugin && plugin.VERSION || '';
+ };
+
+ return Plugin;
+}();
+/**
+ * Gets a plugin by name if it exists.
+ *
+ * @static
+ * @method getPlugin
+ * @memberOf Plugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+
+
+Plugin.getPlugin = getPlugin;
+/**
+ * The name of the base plugin class as it is registered.
+ *
+ * @type {string}
+ */
+
+Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;
+Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);
+/**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+
+Player.prototype.usingPlugin = function (name) {
+ return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;
+};
+/**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+
+
+Player.prototype.hasPlugin = function (name) {
+ return !!pluginExists(name);
+};
+/**
+ * Signals that a plugin is about to be set up on a player.
+ *
+ * @event Player#beforepluginsetup
+ * @type {Plugin~PluginEventHash}
+ */
+
+/**
+ * Signals that a plugin is about to be set up on a player - by name. The name
+ * is the name of the plugin.
+ *
+ * @event Player#beforepluginsetup:$name
+ * @type {Plugin~PluginEventHash}
+ */
+
+/**
+ * Signals that a plugin has just been set up on a player.
+ *
+ * @event Player#pluginsetup
+ * @type {Plugin~PluginEventHash}
+ */
+
+/**
+ * Signals that a plugin has just been set up on a player - by name. The name
+ * is the name of the plugin.
+ *
+ * @event Player#pluginsetup:$name
+ * @type {Plugin~PluginEventHash}
+ */
+
+/**
+ * @typedef {Object} Plugin~PluginEventHash
+ *
+ * @property {string} instance
+ * For basic plugins, the return value of the plugin function. For
+ * advanced plugins, the plugin instance on which the event is fired.
+ *
+ * @property {string} name
+ * The name of the plugin.
+ *
+ * @property {string} plugin
+ * For basic plugins, the plugin function. For advanced plugins, the
+ * plugin class/constructor.
+ */
+
+/**
+ * @file extend.js
+ * @module extend
+ */
+
+/**
+ * A combination of node inherits and babel's inherits (after transpile).
+ * Both work the same but node adds `super_` to the subClass
+ * and Bable adds the superClass as __proto__. Both seem useful.
+ *
+ * @param {Object} subClass
+ * The class to inherit to
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @private
+ */
+var _inherits = function _inherits(subClass, superClass) {
+ if (typeof superClass !== 'function' && superClass !== null) {
+ throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass);
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+
+ if (superClass) {
+ // node
+ subClass.super_ = superClass;
+ }
+};
+/**
+ * Used to subclass an existing class by emulating ES subclassing using the
+ * `extends` keyword.
+ *
+ * @function
+ * @example
+ * var MyComponent = videojs.extend(videojs.getComponent('Component'), {
+ * myCustomMethod: function() {
+ * // Do things in my method.
+ * }
+ * });
+ *
+ * @param {Function} superClass
+ * The class to inherit from
+ *
+ * @param {Object} [subClassMethods={}]
+ * Methods of the new class
+ *
+ * @return {Function}
+ * The new class with subClassMethods that inherited superClass.
+ */
+
+
+var extend = function extend(superClass, subClassMethods) {
+ if (subClassMethods === void 0) {
+ subClassMethods = {};
+ }
+
+ var subClass = function subClass() {
+ superClass.apply(this, arguments);
+ };
+
+ var methods = {};
+
+ if (typeof subClassMethods === 'object') {
+ if (subClassMethods.constructor !== Object.prototype.constructor) {
+ subClass = subClassMethods.constructor;
+ }
+
+ methods = subClassMethods;
+ } else if (typeof subClassMethods === 'function') {
+ subClass = subClassMethods;
+ }
+
+ _inherits(subClass, superClass); // Extend subObj's prototype with functions and other properties from props
+
+
+ for (var name in methods) {
+ if (methods.hasOwnProperty(name)) {
+ subClass.prototype[name] = methods[name];
+ }
+ }
+
+ return subClass;
+};
+
+/**
+ * @file video.js
+ * @module videojs
+ */
+/**
+ * Normalize an `id` value by trimming off a leading `#`
+ *
+ * @private
+ * @param {string} id
+ * A string, maybe with a leading `#`.
+ *
+ * @return {string}
+ * The string, without any leading `#`.
+ */
+
+var normalizeId = function normalizeId(id) {
+ return id.indexOf('#') === 0 ? id.slice(1) : id;
+};
+/**
+ * The `videojs()` function doubles as the main function for users to create a
+ * {@link Player} instance as well as the main library namespace.
+ *
+ * It can also be used as a getter for a pre-existing {@link Player} instance.
+ * However, we _strongly_ recommend using `videojs.getPlayer()` for this
+ * purpose because it avoids any potential for unintended initialization.
+ *
+ * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)
+ * of our JSDoc template, we cannot properly document this as both a function
+ * and a namespace, so its function signature is documented here.
+ *
+ * #### Arguments
+ * ##### id
+ * string|Element, **required**
+ *
+ * Video element or video element ID.
+ *
+ * ##### options
+ * Object, optional
+ *
+ * Options object for providing settings.
+ * See: [Options Guide](https://docs.videojs.com/tutorial-options.html).
+ *
+ * ##### ready
+ * {@link Component~ReadyCallback}, optional
+ *
+ * A function to be called when the {@link Player} and {@link Tech} are ready.
+ *
+ * #### Return Value
+ *
+ * The `videojs()` function returns a {@link Player} instance.
+ *
+ * @namespace
+ *
+ * @borrows AudioTrack as AudioTrack
+ * @borrows Component.getComponent as getComponent
+ * @borrows module:computed-style~computedStyle as computedStyle
+ * @borrows module:events.on as on
+ * @borrows module:events.one as one
+ * @borrows module:events.off as off
+ * @borrows module:events.trigger as trigger
+ * @borrows EventTarget as EventTarget
+ * @borrows module:extend~extend as extend
+ * @borrows module:fn.bind as bind
+ * @borrows module:format-time.formatTime as formatTime
+ * @borrows module:format-time.resetFormatTime as resetFormatTime
+ * @borrows module:format-time.setFormatTime as setFormatTime
+ * @borrows module:merge-options.mergeOptions as mergeOptions
+ * @borrows module:middleware.use as use
+ * @borrows Player.players as players
+ * @borrows Plugin.registerPlugin as registerPlugin
+ * @borrows Plugin.deregisterPlugin as deregisterPlugin
+ * @borrows Plugin.getPlugins as getPlugins
+ * @borrows Plugin.getPlugin as getPlugin
+ * @borrows Plugin.getPluginVersion as getPluginVersion
+ * @borrows Tech.getTech as getTech
+ * @borrows Tech.registerTech as registerTech
+ * @borrows TextTrack as TextTrack
+ * @borrows module:time-ranges.createTimeRanges as createTimeRange
+ * @borrows module:time-ranges.createTimeRanges as createTimeRanges
+ * @borrows module:url.isCrossOrigin as isCrossOrigin
+ * @borrows module:url.parseUrl as parseUrl
+ * @borrows VideoTrack as VideoTrack
+ *
+ * @param {string|Element} id
+ * Video element or video element ID.
+ *
+ * @param {Object} [options]
+ * Options object for providing settings.
+ * See: [Options Guide](https://docs.videojs.com/tutorial-options.html).
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * A function to be called when the {@link Player} and {@link Tech} are
+ * ready.
+ *
+ * @return {Player}
+ * The `videojs()` function returns a {@link Player|Player} instance.
+ */
+
+
+function videojs$1(id, options, ready) {
+ var player = videojs$1.getPlayer(id);
+
+ if (player) {
+ if (options) {
+ log.warn("Player \"" + id + "\" is already initialised. Options will not be applied.");
+ }
+
+ if (ready) {
+ player.ready(ready);
+ }
+
+ return player;
+ }
+
+ var el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;
+
+ if (!isEl(el)) {
+ throw new TypeError('The element or ID supplied is not valid. (videojs)');
+ } // document.body.contains(el) will only check if el is contained within that one document.
+ // This causes problems for elements in iframes.
+ // Instead, use the element's ownerDocument instead of the global document.
+ // This will make sure that the element is indeed in the dom of that document.
+ // Additionally, check that the document in question has a default view.
+ // If the document is no longer attached to the dom, the defaultView of the document will be null.
+
+
+ if (!el.ownerDocument.defaultView || !el.ownerDocument.body.contains(el)) {
+ log.warn('The element supplied is not included in the DOM');
+ }
+
+ options = options || {};
+ videojs$1.hooks('beforesetup').forEach(function (hookFunction) {
+ var opts = hookFunction(el, mergeOptions(options));
+
+ if (!isObject(opts) || Array.isArray(opts)) {
+ log.error('please return an object in beforesetup hooks');
+ return;
+ }
+
+ options = mergeOptions(options, opts);
+ }); // We get the current "Player" component here in case an integration has
+ // replaced it with a custom player.
+
+ var PlayerComponent = Component.getComponent('Player');
+ player = new PlayerComponent(el, options, ready);
+ videojs$1.hooks('setup').forEach(function (hookFunction) {
+ return hookFunction(player);
+ });
+ return player;
+}
+/**
+ * An Object that contains lifecycle hooks as keys which point to an array
+ * of functions that are run when a lifecycle is triggered
+ *
+ * @private
+ */
+
+
+videojs$1.hooks_ = {};
+/**
+ * Get a list of hooks for a specific lifecycle
+ *
+ * @param {string} type
+ * the lifecyle to get hooks from
+ *
+ * @param {Function|Function[]} [fn]
+ * Optionally add a hook (or hooks) to the lifecycle that your are getting.
+ *
+ * @return {Array}
+ * an array of hooks, or an empty array if there are none.
+ */
+
+videojs$1.hooks = function (type, fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type] || [];
+
+ if (fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].concat(fn);
+ }
+
+ return videojs$1.hooks_[type];
+};
+/**
+ * Add a function hook to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+
+
+videojs$1.hook = function (type, fn) {
+ videojs$1.hooks(type, fn);
+};
+/**
+ * Add a function hook that will only run once to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+
+
+videojs$1.hookOnce = function (type, fn) {
+ videojs$1.hooks(type, [].concat(fn).map(function (original) {
+ var wrapper = function wrapper() {
+ videojs$1.removeHook(type, wrapper);
+ return original.apply(void 0, arguments);
+ };
+
+ return wrapper;
+ }));
+};
+/**
+ * Remove a hook from a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle that the function hooked to
+ *
+ * @param {Function} fn
+ * The hooked function to remove
+ *
+ * @return {boolean}
+ * The function that was removed or undef
+ */
+
+
+videojs$1.removeHook = function (type, fn) {
+ var index = videojs$1.hooks(type).indexOf(fn);
+
+ if (index <= -1) {
+ return false;
+ }
+
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].slice();
+ videojs$1.hooks_[type].splice(index, 1);
+ return true;
+}; // Add default styles
+
+
+if (window$1.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {
+ var style = $('.vjs-styles-defaults');
+
+ if (!style) {
+ style = createStyleElement('vjs-styles-defaults');
+ var head = $('head');
+
+ if (head) {
+ head.insertBefore(style, head.firstChild);
+ }
+
+ setTextContent(style, "\n .video-js {\n width: 300px;\n height: 150px;\n }\n\n .vjs-fluid {\n padding-top: 56.25%\n }\n ");
+ }
+} // Run Auto-load players
+// You have to wait at least once in case this script is loaded after your
+// video in the DOM (weird behavior only with minified version)
+
+
+autoSetupTimeout(1, videojs$1);
+/**
+ * Current Video.js version. Follows [semantic versioning](https://semver.org/).
+ *
+ * @type {string}
+ */
+
+videojs$1.VERSION = version;
+/**
+ * The global options object. These are the settings that take effect
+ * if no overrides are specified when the player is created.
+ *
+ * @type {Object}
+ */
+
+videojs$1.options = Player.prototype.options_;
+/**
+ * Get an object with the currently created players, keyed by player ID
+ *
+ * @return {Object}
+ * The created players
+ */
+
+videojs$1.getPlayers = function () {
+ return Player.players;
+};
+/**
+ * Get a single player based on an ID or DOM element.
+ *
+ * This is useful if you want to check if an element or ID has an associated
+ * Video.js player, but not create one if it doesn't.
+ *
+ * @param {string|Element} id
+ * An HTML element - `<video>`, `<audio>`, or `<video-js>` -
+ * or a string matching the `id` of such an element.
+ *
+ * @return {Player|undefined}
+ * A player instance or `undefined` if there is no player instance
+ * matching the argument.
+ */
+
+
+videojs$1.getPlayer = function (id) {
+ var players = Player.players;
+ var tag;
+
+ if (typeof id === 'string') {
+ var nId = normalizeId(id);
+ var player = players[nId];
+
+ if (player) {
+ return player;
+ }
+
+ tag = $('#' + nId);
+ } else {
+ tag = id;
+ }
+
+ if (isEl(tag)) {
+ var _tag = tag,
+ _player = _tag.player,
+ playerId = _tag.playerId; // Element may have a `player` property referring to an already created
+ // player instance. If so, return that.
+
+ if (_player || players[playerId]) {
+ return _player || players[playerId];
+ }
+ }
+};
+/**
+ * Returns an array of all current players.
+ *
+ * @return {Array}
+ * An array of all players. The array will be in the order that
+ * `Object.keys` provides, which could potentially vary between
+ * JavaScript engines.
+ *
+ */
+
+
+videojs$1.getAllPlayers = function () {
+ return (// Disposed players leave a key with a `null` value, so we need to make sure
+ // we filter those out.
+ Object.keys(Player.players).map(function (k) {
+ return Player.players[k];
+ }).filter(Boolean)
+ );
+};
+
+videojs$1.players = Player.players;
+videojs$1.getComponent = Component.getComponent;
+/**
+ * Register a component so it can referred to by name. Used when adding to other
+ * components, either through addChild `component.addChild('myComponent')` or through
+ * default children options `{ children: ['myComponent'] }`.
+ *
+ * > NOTE: You could also just initialize the component before adding.
+ * `component.addChild(new MyComponent());`
+ *
+ * @param {string} name
+ * The class name of the component
+ *
+ * @param {Component} comp
+ * The component class
+ *
+ * @return {Component}
+ * The newly registered component
+ */
+
+videojs$1.registerComponent = function (name, comp) {
+ if (Tech.isTech(comp)) {
+ log.warn("The " + name + " tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)");
+ }
+
+ Component.registerComponent.call(Component, name, comp);
+};
+
+videojs$1.getTech = Tech.getTech;
+videojs$1.registerTech = Tech.registerTech;
+videojs$1.use = use;
+/**
+ * An object that can be returned by a middleware to signify
+ * that the middleware is being terminated.
+ *
+ * @type {object}
+ * @property {object} middleware.TERMINATOR
+ */
+
+Object.defineProperty(videojs$1, 'middleware', {
+ value: {},
+ writeable: false,
+ enumerable: true
+});
+Object.defineProperty(videojs$1.middleware, 'TERMINATOR', {
+ value: TERMINATOR,
+ writeable: false,
+ enumerable: true
+});
+/**
+ * A reference to the {@link module:browser|browser utility module} as an object.
+ *
+ * @type {Object}
+ * @see {@link module:browser|browser}
+ */
+
+videojs$1.browser = browser;
+/**
+ * Use {@link module:browser.TOUCH_ENABLED|browser.TOUCH_ENABLED} instead; only
+ * included for backward-compatibility with 4.x.
+ *
+ * @deprecated Since version 5.0, use {@link module:browser.TOUCH_ENABLED|browser.TOUCH_ENABLED instead.
+ * @type {boolean}
+ */
+
+videojs$1.TOUCH_ENABLED = TOUCH_ENABLED;
+videojs$1.extend = extend;
+videojs$1.mergeOptions = mergeOptions;
+videojs$1.bind = bind;
+videojs$1.registerPlugin = Plugin.registerPlugin;
+videojs$1.deregisterPlugin = Plugin.deregisterPlugin;
+/**
+ * Deprecated method to register a plugin with Video.js
+ *
+ * @deprecated videojs.plugin() is deprecated; use videojs.registerPlugin() instead
+ *
+ * @param {string} name
+ * The plugin name
+ *
+ * @param {Plugin|Function} plugin
+ * The plugin sub-class or function
+ */
+
+videojs$1.plugin = function (name, plugin) {
+ log.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');
+ return Plugin.registerPlugin(name, plugin);
+};
+
+videojs$1.getPlugins = Plugin.getPlugins;
+videojs$1.getPlugin = Plugin.getPlugin;
+videojs$1.getPluginVersion = Plugin.getPluginVersion;
+/**
+ * Adding languages so that they're available to all players.
+ * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`
+ *
+ * @param {string} code
+ * The language code or dictionary property
+ *
+ * @param {Object} data
+ * The data values to be translated
+ *
+ * @return {Object}
+ * The resulting language dictionary object
+ */
+
+videojs$1.addLanguage = function (code, data) {
+ var _mergeOptions;
+
+ code = ('' + code).toLowerCase();
+ videojs$1.options.languages = mergeOptions(videojs$1.options.languages, (_mergeOptions = {}, _mergeOptions[code] = data, _mergeOptions));
+ return videojs$1.options.languages[code];
+};
+/**
+ * A reference to the {@link module:log|log utility module} as an object.
+ *
+ * @type {Function}
+ * @see {@link module:log|log}
+ */
+
+
+videojs$1.log = log;
+videojs$1.createLogger = createLogger$1;
+videojs$1.createTimeRange = videojs$1.createTimeRanges = createTimeRanges;
+videojs$1.formatTime = formatTime;
+videojs$1.setFormatTime = setFormatTime;
+videojs$1.resetFormatTime = resetFormatTime;
+videojs$1.parseUrl = parseUrl;
+videojs$1.isCrossOrigin = isCrossOrigin;
+videojs$1.EventTarget = EventTarget;
+videojs$1.on = on;
+videojs$1.one = one;
+videojs$1.off = off;
+videojs$1.trigger = trigger;
+/**
+ * A cross-browser XMLHttpRequest wrapper.
+ *
+ * @function
+ * @param {Object} options
+ * Settings for the request.
+ *
+ * @return {XMLHttpRequest|XDomainRequest}
+ * The request object.
+ *
+ * @see https://github.com/Raynos/xhr
+ */
+
+videojs$1.xhr = XHR;
+videojs$1.TextTrack = TextTrack;
+videojs$1.AudioTrack = AudioTrack;
+videojs$1.VideoTrack = VideoTrack;
+['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(function (k) {
+ videojs$1[k] = function () {
+ log.warn("videojs." + k + "() is deprecated; use videojs.dom." + k + "() instead");
+ return Dom[k].apply(null, arguments);
+ };
+});
+videojs$1.computedStyle = computedStyle;
+/**
+ * A reference to the {@link module:dom|DOM utility module} as an object.
+ *
+ * @type {Object}
+ * @see {@link module:dom|dom}
+ */
+
+videojs$1.dom = Dom;
+/**
+ * A reference to the {@link module:url|URL utility module} as an object.
+ *
+ * @type {Object}
+ * @see {@link module:url|url}
+ */
+
+videojs$1.url = Url;
+
+/**
+ * @videojs/http-streaming
+ * @version 1.10.6
+ * @copyright 2019 Brightcove, Inc
+ * @license Apache-2.0
+ */
+/**
+ * @file resolve-url.js - Handling how URLs are resolved and manipulated
+ */
+
+var resolveUrl = function resolveUrl(baseURL, relativeURL) {
+ // return early if we don't need to resolve
+ if (/^[a-z]+:/i.test(relativeURL)) {
+ return relativeURL;
+ } // if the base URL is relative then combine with the current location
+
+
+ if (!/\/\//i.test(baseURL)) {
+ baseURL = URLToolkit.buildAbsoluteURL(window$1.location.href, baseURL);
+ }
+
+ return URLToolkit.buildAbsoluteURL(baseURL, relativeURL);
+};
+/**
+ * Checks whether xhr request was redirected and returns correct url depending
+ * on `handleManifestRedirects` option
+ *
+ * @api private
+ *
+ * @param {String} url - an url being requested
+ * @param {XMLHttpRequest} req - xhr request result
+ *
+ * @return {String}
+ */
+
+
+var resolveManifestRedirect = function resolveManifestRedirect(handleManifestRedirect, url, req) {
+ // To understand how the responseURL below is set and generated:
+ // - https://fetch.spec.whatwg.org/#concept-response-url
+ // - https://fetch.spec.whatwg.org/#atomic-http-redirect-handling
+ if (handleManifestRedirect && req.responseURL && url !== req.responseURL) {
+ return req.responseURL;
+ }
+
+ return url;
+};
+
+var classCallCheck = function classCallCheck(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+};
+
+var createClass = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+}();
+
+var get$1 = function get(object, property, receiver) {
+ if (object === null) object = Function.prototype;
+ var desc = Object.getOwnPropertyDescriptor(object, property);
+
+ if (desc === undefined) {
+ var parent = Object.getPrototypeOf(object);
+
+ if (parent === null) {
+ return undefined;
+ } else {
+ return get(parent, property, receiver);
+ }
+ } else if ("value" in desc) {
+ return desc.value;
+ } else {
+ var getter = desc.get;
+
+ if (getter === undefined) {
+ return undefined;
+ }
+
+ return getter.call(receiver);
+ }
+};
+
+var inherits = function inherits(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+};
+
+var possibleConstructorReturn = function possibleConstructorReturn(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && (typeof call === "object" || typeof call === "function") ? call : self;
+};
+
+var slicedToArray = function () {
+ function sliceIterator(arr, i) {
+ var _arr = [];
+ var _n = true;
+ var _d = false;
+ var _e = undefined;
+
+ try {
+ for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
+ _arr.push(_s.value);
+
+ if (i && _arr.length === i) break;
+ }
+ } catch (err) {
+ _d = true;
+ _e = err;
+ } finally {
+ try {
+ if (!_n && _i["return"]) _i["return"]();
+ } finally {
+ if (_d) throw _e;
+ }
+ }
+
+ return _arr;
+ }
+
+ return function (arr, i) {
+ if (Array.isArray(arr)) {
+ return arr;
+ } else if (Symbol.iterator in Object(arr)) {
+ return sliceIterator(arr, i);
+ } else {
+ throw new TypeError("Invalid attempt to destructure non-iterable instance");
+ }
+ };
+}();
+/**
+ * @file playlist-loader.js
+ *
+ * A state machine that manages the loading, caching, and updating of
+ * M3U8 playlists.
+ *
+ */
+
+
+var mergeOptions$1 = videojs$1.mergeOptions,
+ EventTarget$1 = videojs$1.EventTarget,
+ log$1 = videojs$1.log;
+/**
+ * Loops through all supported media groups in master and calls the provided
+ * callback for each group
+ *
+ * @param {Object} master
+ * The parsed master manifest object
+ * @param {Function} callback
+ * Callback to call for each media group
+ */
+
+var forEachMediaGroup = function forEachMediaGroup(master, callback) {
+ ['AUDIO', 'SUBTITLES'].forEach(function (mediaType) {
+ for (var groupKey in master.mediaGroups[mediaType]) {
+ for (var labelKey in master.mediaGroups[mediaType][groupKey]) {
+ var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];
+ callback(mediaProperties, mediaType, groupKey, labelKey);
+ }
+ }
+ });
+};
+/**
+ * Returns a new array of segments that is the result of merging
+ * properties from an older list of segments onto an updated
+ * list. No properties on the updated playlist will be overridden.
+ *
+ * @param {Array} original the outdated list of segments
+ * @param {Array} update the updated list of segments
+ * @param {Number=} offset the index of the first update
+ * segment in the original segment list. For non-live playlists,
+ * this should always be zero and does not need to be
+ * specified. For live playlists, it should be the difference
+ * between the media sequence numbers in the original and updated
+ * playlists.
+ * @return a list of merged segment objects
+ */
+
+
+var updateSegments = function updateSegments(original, update, offset) {
+ var result = update.slice();
+ offset = offset || 0;
+ var length = Math.min(original.length, update.length + offset);
+
+ for (var i = offset; i < length; i++) {
+ result[i - offset] = mergeOptions$1(original[i], result[i - offset]);
+ }
+
+ return result;
+};
+
+var resolveSegmentUris = function resolveSegmentUris(segment, baseUri) {
+ if (!segment.resolvedUri) {
+ segment.resolvedUri = resolveUrl(baseUri, segment.uri);
+ }
+
+ if (segment.key && !segment.key.resolvedUri) {
+ segment.key.resolvedUri = resolveUrl(baseUri, segment.key.uri);
+ }
+
+ if (segment.map && !segment.map.resolvedUri) {
+ segment.map.resolvedUri = resolveUrl(baseUri, segment.map.uri);
+ }
+};
+/**
+ * Returns a new master playlist that is the result of merging an
+ * updated media playlist into the original version. If the
+ * updated media playlist does not match any of the playlist
+ * entries in the original master playlist, null is returned.
+ *
+ * @param {Object} master a parsed master M3U8 object
+ * @param {Object} media a parsed media M3U8 object
+ * @return {Object} a new object that represents the original
+ * master playlist with the updated media playlist merged in, or
+ * null if the merge produced no change.
+ */
+
+
+var updateMaster = function updateMaster(master, media) {
+ var result = mergeOptions$1(master, {});
+ var playlist = result.playlists[media.uri];
+
+ if (!playlist) {
+ return null;
+ } // consider the playlist unchanged if the number of segments is equal, the media
+ // sequence number is unchanged, and this playlist hasn't become the end of the playlist
+
+
+ if (playlist.segments && media.segments && playlist.segments.length === media.segments.length && playlist.endList === media.endList && playlist.mediaSequence === media.mediaSequence) {
+ return null;
+ }
+
+ var mergedPlaylist = mergeOptions$1(playlist, media); // if the update could overlap existing segment information, merge the two segment lists
+
+ if (playlist.segments) {
+ mergedPlaylist.segments = updateSegments(playlist.segments, media.segments, media.mediaSequence - playlist.mediaSequence);
+ } // resolve any segment URIs to prevent us from having to do it later
+
+
+ mergedPlaylist.segments.forEach(function (segment) {
+ resolveSegmentUris(segment, mergedPlaylist.resolvedUri);
+ }); // TODO Right now in the playlists array there are two references to each playlist, one
+ // that is referenced by index, and one by URI. The index reference may no longer be
+ // necessary.
+
+ for (var i = 0; i < result.playlists.length; i++) {
+ if (result.playlists[i].uri === media.uri) {
+ result.playlists[i] = mergedPlaylist;
+ }
+ }
+
+ result.playlists[media.uri] = mergedPlaylist;
+ return result;
+};
+
+var setupMediaPlaylists = function setupMediaPlaylists(master) {
+ // setup by-URI lookups and resolve media playlist URIs
+ var i = master.playlists.length;
+
+ while (i--) {
+ var playlist = master.playlists[i];
+ master.playlists[playlist.uri] = playlist;
+ playlist.resolvedUri = resolveUrl(master.uri, playlist.uri);
+ playlist.id = i;
+
+ if (!playlist.attributes) {
+ // Although the spec states an #EXT-X-STREAM-INF tag MUST have a
+ // BANDWIDTH attribute, we can play the stream without it. This means a poorly
+ // formatted master playlist may not have an attribute list. An attributes
+ // property is added here to prevent undefined references when we encounter
+ // this scenario.
+ playlist.attributes = {};
+ log$1.warn('Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.');
+ }
+ }
+};
+
+var resolveMediaGroupUris = function resolveMediaGroupUris(master) {
+ forEachMediaGroup(master, function (properties) {
+ if (properties.uri) {
+ properties.resolvedUri = resolveUrl(master.uri, properties.uri);
+ }
+ });
+};
+/**
+ * Calculates the time to wait before refreshing a live playlist
+ *
+ * @param {Object} media
+ * The current media
+ * @param {Boolean} update
+ * True if there were any updates from the last refresh, false otherwise
+ * @return {Number}
+ * The time in ms to wait before refreshing the live playlist
+ */
+
+
+var refreshDelay = function refreshDelay(media, update) {
+ var lastSegment = media.segments[media.segments.length - 1];
+ var delay = void 0;
+
+ if (update && lastSegment && lastSegment.duration) {
+ delay = lastSegment.duration * 1000;
+ } else {
+ // if the playlist is unchanged since the last reload or last segment duration
+ // cannot be determined, try again after half the target duration
+ delay = (media.targetDuration || 10) * 500;
+ }
+
+ return delay;
+};
+/**
+ * Load a playlist from a remote location
+ *
+ * @class PlaylistLoader
+ * @extends Stream
+ * @param {String} srcUrl the url to start with
+ * @param {Boolean} withCredentials the withCredentials xhr option
+ * @constructor
+ */
+
+
+var PlaylistLoader = function (_EventTarget) {
+ inherits(PlaylistLoader, _EventTarget);
+
+ function PlaylistLoader(srcUrl, hls) {
+ var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+ classCallCheck(this, PlaylistLoader);
+
+ var _this = possibleConstructorReturn(this, (PlaylistLoader.__proto__ || Object.getPrototypeOf(PlaylistLoader)).call(this));
+
+ var _options$withCredenti = options.withCredentials,
+ withCredentials = _options$withCredenti === undefined ? false : _options$withCredenti,
+ _options$handleManife = options.handleManifestRedirects,
+ handleManifestRedirects = _options$handleManife === undefined ? false : _options$handleManife;
+ _this.srcUrl = srcUrl;
+ _this.hls_ = hls;
+ _this.withCredentials = withCredentials;
+ _this.handleManifestRedirects = handleManifestRedirects;
+ var hlsOptions = hls.options_;
+ _this.customTagParsers = hlsOptions && hlsOptions.customTagParsers || [];
+ _this.customTagMappers = hlsOptions && hlsOptions.customTagMappers || [];
+
+ if (!_this.srcUrl) {
+ throw new Error('A non-empty playlist URL is required');
+ } // initialize the loader state
+
+
+ _this.state = 'HAVE_NOTHING'; // live playlist staleness timeout
+
+ _this.on('mediaupdatetimeout', function () {
+ if (_this.state !== 'HAVE_METADATA') {
+ // only refresh the media playlist if no other activity is going on
+ return;
+ }
+
+ _this.state = 'HAVE_CURRENT_METADATA';
+ _this.request = _this.hls_.xhr({
+ uri: resolveUrl(_this.master.uri, _this.media().uri),
+ withCredentials: _this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this.request) {
+ return;
+ }
+
+ if (error) {
+ return _this.playlistRequestError(_this.request, _this.media().uri, 'HAVE_METADATA');
+ }
+
+ _this.haveMetadata(_this.request, _this.media().uri);
+ });
+ });
+
+ return _this;
+ }
+
+ createClass(PlaylistLoader, [{
+ key: 'playlistRequestError',
+ value: function playlistRequestError(xhr, url, startingState) {
+ // any in-flight request is now finished
+ this.request = null;
+
+ if (startingState) {
+ this.state = startingState;
+ }
+
+ this.error = {
+ playlist: this.master.playlists[url],
+ status: xhr.status,
+ message: 'HLS playlist request error at URL: ' + url + '.',
+ responseText: xhr.responseText,
+ code: xhr.status >= 500 ? 4 : 2
+ };
+ this.trigger('error');
+ } // update the playlist loader's state in response to a new or
+ // updated playlist.
+
+ }, {
+ key: 'haveMetadata',
+ value: function haveMetadata(xhr, url) {
+ var _this2 = this; // any in-flight request is now finished
+
+
+ this.request = null;
+ this.state = 'HAVE_METADATA';
+ var parser = new Parser(); // adding custom tag parsers
+
+ this.customTagParsers.forEach(function (customParser) {
+ return parser.addParser(customParser);
+ }); // adding custom tag mappers
+
+ this.customTagMappers.forEach(function (mapper) {
+ return parser.addTagMapper(mapper);
+ });
+ parser.push(xhr.responseText);
+ parser.end();
+ parser.manifest.uri = url; // m3u8-parser does not attach an attributes property to media playlists so make
+ // sure that the property is attached to avoid undefined reference errors
+
+ parser.manifest.attributes = parser.manifest.attributes || {}; // merge this playlist into the master
+
+ var update = updateMaster(this.master, parser.manifest);
+ this.targetDuration = parser.manifest.targetDuration;
+
+ if (update) {
+ this.master = update;
+ this.media_ = this.master.playlists[parser.manifest.uri];
+ } else {
+ this.trigger('playlistunchanged');
+ } // refresh live playlists after a target duration passes
+
+
+ if (!this.media().endList) {
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ this.mediaUpdateTimeout = window$1.setTimeout(function () {
+ _this2.trigger('mediaupdatetimeout');
+ }, refreshDelay(this.media(), !!update));
+ }
+
+ this.trigger('loadedplaylist');
+ }
+ /**
+ * Abort any outstanding work and clean up.
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.stopRequest();
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ window$1.clearTimeout(this.finalRenditionTimeout);
+ }
+ }, {
+ key: 'stopRequest',
+ value: function stopRequest() {
+ if (this.request) {
+ var oldRequest = this.request;
+ this.request = null;
+ oldRequest.onreadystatechange = null;
+ oldRequest.abort();
+ }
+ }
+ /**
+ * When called without any arguments, returns the currently
+ * active media playlist. When called with a single argument,
+ * triggers the playlist loader to asynchronously switch to the
+ * specified media playlist. Calling this method while the
+ * loader is in the HAVE_NOTHING causes an error to be emitted
+ * but otherwise has no effect.
+ *
+ * @param {Object=} playlist the parsed media playlist
+ * object to switch to
+ * @param {Boolean=} is this the last available playlist
+ *
+ * @return {Playlist} the current loaded media
+ */
+
+ }, {
+ key: 'media',
+ value: function media(playlist, isFinalRendition) {
+ var _this3 = this; // getter
+
+
+ if (!playlist) {
+ return this.media_;
+ } // setter
+
+
+ if (this.state === 'HAVE_NOTHING') {
+ throw new Error('Cannot switch media playlist from ' + this.state);
+ } // find the playlist object if the target playlist has been
+ // specified by URI
+
+
+ if (typeof playlist === 'string') {
+ if (!this.master.playlists[playlist]) {
+ throw new Error('Unknown playlist URI: ' + playlist);
+ }
+
+ playlist = this.master.playlists[playlist];
+ }
+
+ window$1.clearTimeout(this.finalRenditionTimeout);
+
+ if (isFinalRendition) {
+ var delay = playlist.targetDuration / 2 * 1000 || 5 * 1000;
+ this.finalRenditionTimeout = window$1.setTimeout(this.media.bind(this, playlist, false), delay);
+ return;
+ }
+
+ var startingState = this.state;
+ var mediaChange = !this.media_ || playlist.uri !== this.media_.uri; // switch to fully loaded playlists immediately
+
+ if (this.master.playlists[playlist.uri].endList) {
+ // abort outstanding playlist requests
+ if (this.request) {
+ this.request.onreadystatechange = null;
+ this.request.abort();
+ this.request = null;
+ }
+
+ this.state = 'HAVE_METADATA';
+ this.media_ = playlist; // trigger media change if the active media has been updated
+
+ if (mediaChange) {
+ this.trigger('mediachanging');
+ this.trigger('mediachange');
+ }
+
+ return;
+ } // switching to the active playlist is a no-op
+
+
+ if (!mediaChange) {
+ return;
+ }
+
+ this.state = 'SWITCHING_MEDIA'; // there is already an outstanding playlist request
+
+ if (this.request) {
+ if (playlist.resolvedUri === this.request.url) {
+ // requesting to switch to the same playlist multiple times
+ // has no effect after the first
+ return;
+ }
+
+ this.request.onreadystatechange = null;
+ this.request.abort();
+ this.request = null;
+ } // request the new playlist
+
+
+ if (this.media_) {
+ this.trigger('mediachanging');
+ }
+
+ this.request = this.hls_.xhr({
+ uri: playlist.resolvedUri,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this3.request) {
+ return;
+ }
+
+ playlist.resolvedUri = resolveManifestRedirect(_this3.handleManifestRedirects, playlist.resolvedUri, req);
+
+ if (error) {
+ return _this3.playlistRequestError(_this3.request, playlist.uri, startingState);
+ }
+
+ _this3.haveMetadata(req, playlist.uri); // fire loadedmetadata the first time a media playlist is loaded
+
+
+ if (startingState === 'HAVE_MASTER') {
+ _this3.trigger('loadedmetadata');
+ } else {
+ _this3.trigger('mediachange');
+ }
+ });
+ }
+ /**
+ * pause loading of the playlist
+ */
+
+ }, {
+ key: 'pause',
+ value: function pause() {
+ this.stopRequest();
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+
+ if (this.state === 'HAVE_NOTHING') {
+ // If we pause the loader before any data has been retrieved, its as if we never
+ // started, so reset to an unstarted state.
+ this.started = false;
+ } // Need to restore state now that no activity is happening
+
+
+ if (this.state === 'SWITCHING_MEDIA') {
+ // if the loader was in the process of switching media, it should either return to
+ // HAVE_MASTER or HAVE_METADATA depending on if the loader has loaded a media
+ // playlist yet. This is determined by the existence of loader.media_
+ if (this.media_) {
+ this.state = 'HAVE_METADATA';
+ } else {
+ this.state = 'HAVE_MASTER';
+ }
+ } else if (this.state === 'HAVE_CURRENT_METADATA') {
+ this.state = 'HAVE_METADATA';
+ }
+ }
+ /**
+ * start loading of the playlist
+ */
+
+ }, {
+ key: 'load',
+ value: function load(isFinalRendition) {
+ var _this4 = this;
+
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ var media = this.media();
+
+ if (isFinalRendition) {
+ var delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;
+ this.mediaUpdateTimeout = window$1.setTimeout(function () {
+ return _this4.load();
+ }, delay);
+ return;
+ }
+
+ if (!this.started) {
+ this.start();
+ return;
+ }
+
+ if (media && !media.endList) {
+ this.trigger('mediaupdatetimeout');
+ } else {
+ this.trigger('loadedplaylist');
+ }
+ }
+ /**
+ * start loading of the playlist
+ */
+
+ }, {
+ key: 'start',
+ value: function start() {
+ var _this5 = this;
+
+ this.started = true; // request the specified URL
+
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this5.request) {
+ return;
+ } // clear the loader's request reference
+
+
+ _this5.request = null;
+
+ if (error) {
+ _this5.error = {
+ status: req.status,
+ message: 'HLS playlist request error at URL: ' + _this5.srcUrl + '.',
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+
+ if (_this5.state === 'HAVE_NOTHING') {
+ _this5.started = false;
+ }
+
+ return _this5.trigger('error');
+ }
+
+ var parser = new Parser(); // adding custom tag parsers
+
+ _this5.customTagParsers.forEach(function (customParser) {
+ return parser.addParser(customParser);
+ }); // adding custom tag mappers
+
+
+ _this5.customTagMappers.forEach(function (mapper) {
+ return parser.addTagMapper(mapper);
+ });
+
+ parser.push(req.responseText);
+ parser.end();
+ _this5.state = 'HAVE_MASTER';
+ _this5.srcUrl = resolveManifestRedirect(_this5.handleManifestRedirects, _this5.srcUrl, req);
+ parser.manifest.uri = _this5.srcUrl; // loaded a master playlist
+
+ if (parser.manifest.playlists) {
+ _this5.master = parser.manifest;
+ setupMediaPlaylists(_this5.master);
+ resolveMediaGroupUris(_this5.master);
+
+ _this5.trigger('loadedplaylist');
+
+ if (!_this5.request) {
+ // no media playlist was specifically selected so start
+ // from the first listed one
+ _this5.media(parser.manifest.playlists[0]);
+ }
+
+ return;
+ } // loaded a media playlist
+ // infer a master playlist if none was previously requested
+
+
+ _this5.master = {
+ mediaGroups: {
+ 'AUDIO': {},
+ 'VIDEO': {},
+ 'CLOSED-CAPTIONS': {},
+ 'SUBTITLES': {}
+ },
+ uri: window$1.location.href,
+ playlists: [{
+ uri: _this5.srcUrl,
+ id: 0,
+ resolvedUri: _this5.srcUrl,
+ // m3u8-parser does not attach an attributes property to media playlists so make
+ // sure that the property is attached to avoid undefined reference errors
+ attributes: {}
+ }]
+ };
+ _this5.master.playlists[_this5.srcUrl] = _this5.master.playlists[0];
+
+ _this5.haveMetadata(req, _this5.srcUrl);
+
+ return _this5.trigger('loadedmetadata');
+ });
+ }
+ }]);
+ return PlaylistLoader;
+}(EventTarget$1);
+/**
+ * @file playlist.js
+ *
+ * Playlist related utilities.
+ */
+
+
+var createTimeRange = videojs$1.createTimeRange;
+/**
+ * walk backward until we find a duration we can use
+ * or return a failure
+ *
+ * @param {Playlist} playlist the playlist to walk through
+ * @param {Number} endSequence the mediaSequence to stop walking on
+ */
+
+var backwardDuration = function backwardDuration(playlist, endSequence) {
+ var result = 0;
+ var i = endSequence - playlist.mediaSequence; // if a start time is available for segment immediately following
+ // the interval, use it
+
+ var segment = playlist.segments[i]; // Walk backward until we find the latest segment with timeline
+ // information that is earlier than endSequence
+
+ if (segment) {
+ if (typeof segment.start !== 'undefined') {
+ return {
+ result: segment.start,
+ precise: true
+ };
+ }
+
+ if (typeof segment.end !== 'undefined') {
+ return {
+ result: segment.end - segment.duration,
+ precise: true
+ };
+ }
+ }
+
+ while (i--) {
+ segment = playlist.segments[i];
+
+ if (typeof segment.end !== 'undefined') {
+ return {
+ result: result + segment.end,
+ precise: true
+ };
+ }
+
+ result += segment.duration;
+
+ if (typeof segment.start !== 'undefined') {
+ return {
+ result: result + segment.start,
+ precise: true
+ };
+ }
+ }
+
+ return {
+ result: result,
+ precise: false
+ };
+};
+/**
+ * walk forward until we find a duration we can use
+ * or return a failure
+ *
+ * @param {Playlist} playlist the playlist to walk through
+ * @param {Number} endSequence the mediaSequence to stop walking on
+ */
+
+
+var forwardDuration = function forwardDuration(playlist, endSequence) {
+ var result = 0;
+ var segment = void 0;
+ var i = endSequence - playlist.mediaSequence; // Walk forward until we find the earliest segment with timeline
+ // information
+
+ for (; i < playlist.segments.length; i++) {
+ segment = playlist.segments[i];
+
+ if (typeof segment.start !== 'undefined') {
+ return {
+ result: segment.start - result,
+ precise: true
+ };
+ }
+
+ result += segment.duration;
+
+ if (typeof segment.end !== 'undefined') {
+ return {
+ result: segment.end - result,
+ precise: true
+ };
+ }
+ } // indicate we didn't find a useful duration estimate
+
+
+ return {
+ result: -1,
+ precise: false
+ };
+};
+/**
+ * Calculate the media duration from the segments associated with a
+ * playlist. The duration of a subinterval of the available segments
+ * may be calculated by specifying an end index.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} endSequence an exclusive upper boundary
+ * for the playlist. Defaults to playlist length.
+ * @param {Number} expired the amount of time that has dropped
+ * off the front of the playlist in a live scenario
+ * @return {Number} the duration between the first available segment
+ * and end index.
+ */
+
+
+var intervalDuration = function intervalDuration(playlist, endSequence, expired) {
+ var backward = void 0;
+ var forward = void 0;
+
+ if (typeof endSequence === 'undefined') {
+ endSequence = playlist.mediaSequence + playlist.segments.length;
+ }
+
+ if (endSequence < playlist.mediaSequence) {
+ return 0;
+ } // do a backward walk to estimate the duration
+
+
+ backward = backwardDuration(playlist, endSequence);
+
+ if (backward.precise) {
+ // if we were able to base our duration estimate on timing
+ // information provided directly from the Media Source, return
+ // it
+ return backward.result;
+ } // walk forward to see if a precise duration estimate can be made
+ // that way
+
+
+ forward = forwardDuration(playlist, endSequence);
+
+ if (forward.precise) {
+ // we found a segment that has been buffered and so it's
+ // position is known precisely
+ return forward.result;
+ } // return the less-precise, playlist-based duration estimate
+
+
+ return backward.result + expired;
+};
+/**
+ * Calculates the duration of a playlist. If a start and end index
+ * are specified, the duration will be for the subset of the media
+ * timeline between those two indices. The total duration for live
+ * playlists is always Infinity.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} endSequence an exclusive upper
+ * boundary for the playlist. Defaults to the playlist media
+ * sequence number plus its length.
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @return {Number} the duration between the start index and end
+ * index.
+ */
+
+
+var duration = function duration(playlist, endSequence, expired) {
+ if (!playlist) {
+ return 0;
+ }
+
+ if (typeof expired !== 'number') {
+ expired = 0;
+ } // if a slice of the total duration is not requested, use
+ // playlist-level duration indicators when they're present
+
+
+ if (typeof endSequence === 'undefined') {
+ // if present, use the duration specified in the playlist
+ if (playlist.totalDuration) {
+ return playlist.totalDuration;
+ } // duration should be Infinity for live playlists
+
+
+ if (!playlist.endList) {
+ return window$1.Infinity;
+ }
+ } // calculate the total duration based on the segment durations
+
+
+ return intervalDuration(playlist, endSequence, expired);
+};
+/**
+ * Calculate the time between two indexes in the current playlist
+ * neight the start- nor the end-index need to be within the current
+ * playlist in which case, the targetDuration of the playlist is used
+ * to approximate the durations of the segments
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number} startIndex
+ * @param {Number} endIndex
+ * @return {Number} the number of seconds between startIndex and endIndex
+ */
+
+
+var sumDurations = function sumDurations(playlist, startIndex, endIndex) {
+ var durations = 0;
+
+ if (startIndex > endIndex) {
+ var _ref = [endIndex, startIndex];
+ startIndex = _ref[0];
+ endIndex = _ref[1];
+ }
+
+ if (startIndex < 0) {
+ for (var i = startIndex; i < Math.min(0, endIndex); i++) {
+ durations += playlist.targetDuration;
+ }
+
+ startIndex = 0;
+ }
+
+ for (var _i = startIndex; _i < endIndex; _i++) {
+ durations += playlist.segments[_i].duration;
+ }
+
+ return durations;
+};
+/**
+ * Determines the media index of the segment corresponding to the safe edge of the live
+ * window which is the duration of the last segment plus 2 target durations from the end
+ * of the playlist.
+ *
+ * @param {Object} playlist
+ * a media playlist object
+ * @return {Number}
+ * The media index of the segment at the safe live point. 0 if there is no "safe"
+ * point.
+ * @function safeLiveIndex
+ */
+
+
+var safeLiveIndex = function safeLiveIndex(playlist) {
+ if (!playlist.segments.length) {
+ return 0;
+ }
+
+ var i = playlist.segments.length - 1;
+ var distanceFromEnd = playlist.segments[i].duration || playlist.targetDuration;
+ var safeDistance = distanceFromEnd + playlist.targetDuration * 2;
+
+ while (i--) {
+ distanceFromEnd += playlist.segments[i].duration;
+
+ if (distanceFromEnd >= safeDistance) {
+ break;
+ }
+ }
+
+ return Math.max(0, i);
+};
+/**
+ * Calculates the playlist end time
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @param {Boolean|false} useSafeLiveEnd a boolean value indicating whether or not the
+ * playlist end calculation should consider the safe live end
+ * (truncate the playlist end by three segments). This is normally
+ * used for calculating the end of the playlist's seekable range.
+ * @returns {Number} the end time of playlist
+ * @function playlistEnd
+ */
+
+
+var playlistEnd = function playlistEnd(playlist, expired, useSafeLiveEnd) {
+ if (!playlist || !playlist.segments) {
+ return null;
+ }
+
+ if (playlist.endList) {
+ return duration(playlist);
+ }
+
+ if (expired === null) {
+ return null;
+ }
+
+ expired = expired || 0;
+ var endSequence = useSafeLiveEnd ? safeLiveIndex(playlist) : playlist.segments.length;
+ return intervalDuration(playlist, playlist.mediaSequence + endSequence, expired);
+};
+/**
+ * Calculates the interval of time that is currently seekable in a
+ * playlist. The returned time ranges are relative to the earliest
+ * moment in the specified playlist that is still available. A full
+ * seekable implementation for live streams would need to offset
+ * these values by the duration of content that has expired from the
+ * stream.
+ *
+ * @param {Object} playlist a media playlist object
+ * dropped off the front of the playlist in a live scenario
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @return {TimeRanges} the periods of time that are valid targets
+ * for seeking
+ */
+
+
+var seekable = function seekable(playlist, expired) {
+ var useSafeLiveEnd = true;
+ var seekableStart = expired || 0;
+ var seekableEnd = playlistEnd(playlist, expired, useSafeLiveEnd);
+
+ if (seekableEnd === null) {
+ return createTimeRange();
+ }
+
+ return createTimeRange(seekableStart, seekableEnd);
+};
+
+var isWholeNumber = function isWholeNumber(num) {
+ return num - Math.floor(num) === 0;
+};
+
+var roundSignificantDigit = function roundSignificantDigit(increment, num) {
+ // If we have a whole number, just add 1 to it
+ if (isWholeNumber(num)) {
+ return num + increment * 0.1;
+ }
+
+ var numDecimalDigits = num.toString().split('.')[1].length;
+
+ for (var i = 1; i <= numDecimalDigits; i++) {
+ var scale = Math.pow(10, i);
+ var temp = num * scale;
+
+ if (isWholeNumber(temp) || i === numDecimalDigits) {
+ return (temp + increment) / scale;
+ }
+ }
+};
+
+var ceilLeastSignificantDigit = roundSignificantDigit.bind(null, 1);
+var floorLeastSignificantDigit = roundSignificantDigit.bind(null, -1);
+/**
+ * Determine the index and estimated starting time of the segment that
+ * contains a specified playback position in a media playlist.
+ *
+ * @param {Object} playlist the media playlist to query
+ * @param {Number} currentTime The number of seconds since the earliest
+ * possible position to determine the containing segment for
+ * @param {Number} startIndex
+ * @param {Number} startTime
+ * @return {Object}
+ */
+
+var getMediaInfoForTime = function getMediaInfoForTime(playlist, currentTime, startIndex, startTime) {
+ var i = void 0;
+ var segment = void 0;
+ var numSegments = playlist.segments.length;
+ var time = currentTime - startTime;
+
+ if (time < 0) {
+ // Walk backward from startIndex in the playlist, adding durations
+ // until we find a segment that contains `time` and return it
+ if (startIndex > 0) {
+ for (i = startIndex - 1; i >= 0; i--) {
+ segment = playlist.segments[i];
+ time += floorLeastSignificantDigit(segment.duration);
+
+ if (time > 0) {
+ return {
+ mediaIndex: i,
+ startTime: startTime - sumDurations(playlist, startIndex, i)
+ };
+ }
+ }
+ } // We were unable to find a good segment within the playlist
+ // so select the first segment
+
+
+ return {
+ mediaIndex: 0,
+ startTime: currentTime
+ };
+ } // When startIndex is negative, we first walk forward to first segment
+ // adding target durations. If we "run out of time" before getting to
+ // the first segment, return the first segment
+
+
+ if (startIndex < 0) {
+ for (i = startIndex; i < 0; i++) {
+ time -= playlist.targetDuration;
+
+ if (time < 0) {
+ return {
+ mediaIndex: 0,
+ startTime: currentTime
+ };
+ }
+ }
+
+ startIndex = 0;
+ } // Walk forward from startIndex in the playlist, subtracting durations
+ // until we find a segment that contains `time` and return it
+
+
+ for (i = startIndex; i < numSegments; i++) {
+ segment = playlist.segments[i];
+ time -= ceilLeastSignificantDigit(segment.duration);
+
+ if (time < 0) {
+ return {
+ mediaIndex: i,
+ startTime: startTime + sumDurations(playlist, startIndex, i)
+ };
+ }
+ } // We are out of possible candidates so load the last one...
+
+
+ return {
+ mediaIndex: numSegments - 1,
+ startTime: currentTime
+ };
+};
+/**
+ * Check whether the playlist is blacklisted or not.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is blacklisted or not
+ * @function isBlacklisted
+ */
+
+
+var isBlacklisted = function isBlacklisted(playlist) {
+ return playlist.excludeUntil && playlist.excludeUntil > Date.now();
+};
+/**
+ * Check whether the playlist is compatible with current playback configuration or has
+ * been blacklisted permanently for being incompatible.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is incompatible or not
+ * @function isIncompatible
+ */
+
+
+var isIncompatible = function isIncompatible(playlist) {
+ return playlist.excludeUntil && playlist.excludeUntil === Infinity;
+};
+/**
+ * Check whether the playlist is enabled or not.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is enabled or not
+ * @function isEnabled
+ */
+
+
+var isEnabled = function isEnabled(playlist) {
+ var blacklisted = isBlacklisted(playlist);
+ return !playlist.disabled && !blacklisted;
+};
+/**
+ * Check whether the playlist has been manually disabled through the representations api.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is disabled manually or not
+ * @function isDisabled
+ */
+
+
+var isDisabled = function isDisabled(playlist) {
+ return playlist.disabled;
+};
+/**
+ * Returns whether the current playlist is an AES encrypted HLS stream
+ *
+ * @return {Boolean} true if it's an AES encrypted HLS stream
+ */
+
+
+var isAes = function isAes(media) {
+ for (var i = 0; i < media.segments.length; i++) {
+ if (media.segments[i].key) {
+ return true;
+ }
+ }
+
+ return false;
+};
+/**
+ * Returns whether the current playlist contains fMP4
+ *
+ * @return {Boolean} true if the playlist contains fMP4
+ */
+
+
+var isFmp4 = function isFmp4(media) {
+ for (var i = 0; i < media.segments.length; i++) {
+ if (media.segments[i].map) {
+ return true;
+ }
+ }
+
+ return false;
+};
+/**
+ * Checks if the playlist has a value for the specified attribute
+ *
+ * @param {String} attr
+ * Attribute to check for
+ * @param {Object} playlist
+ * The media playlist object
+ * @return {Boolean}
+ * Whether the playlist contains a value for the attribute or not
+ * @function hasAttribute
+ */
+
+
+var hasAttribute = function hasAttribute(attr, playlist) {
+ return playlist.attributes && playlist.attributes[attr];
+};
+/**
+ * Estimates the time required to complete a segment download from the specified playlist
+ *
+ * @param {Number} segmentDuration
+ * Duration of requested segment
+ * @param {Number} bandwidth
+ * Current measured bandwidth of the player
+ * @param {Object} playlist
+ * The media playlist object
+ * @param {Number=} bytesReceived
+ * Number of bytes already received for the request. Defaults to 0
+ * @return {Number|NaN}
+ * The estimated time to request the segment. NaN if bandwidth information for
+ * the given playlist is unavailable
+ * @function estimateSegmentRequestTime
+ */
+
+
+var estimateSegmentRequestTime = function estimateSegmentRequestTime(segmentDuration, bandwidth, playlist) {
+ var bytesReceived = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
+
+ if (!hasAttribute('BANDWIDTH', playlist)) {
+ return NaN;
+ }
+
+ var size = segmentDuration * playlist.attributes.BANDWIDTH;
+ return (size - bytesReceived * 8) / bandwidth;
+};
+/*
+ * Returns whether the current playlist is the lowest rendition
+ *
+ * @return {Boolean} true if on lowest rendition
+ */
+
+
+var isLowestEnabledRendition = function isLowestEnabledRendition(master, media) {
+ if (master.playlists.length === 1) {
+ return true;
+ }
+
+ var currentBandwidth = media.attributes.BANDWIDTH || Number.MAX_VALUE;
+ return master.playlists.filter(function (playlist) {
+ if (!isEnabled(playlist)) {
+ return false;
+ }
+
+ return (playlist.attributes.BANDWIDTH || 0) < currentBandwidth;
+ }).length === 0;
+}; // exports
+
+
+var Playlist = {
+ duration: duration,
+ seekable: seekable,
+ safeLiveIndex: safeLiveIndex,
+ getMediaInfoForTime: getMediaInfoForTime,
+ isEnabled: isEnabled,
+ isDisabled: isDisabled,
+ isBlacklisted: isBlacklisted,
+ isIncompatible: isIncompatible,
+ playlistEnd: playlistEnd,
+ isAes: isAes,
+ isFmp4: isFmp4,
+ hasAttribute: hasAttribute,
+ estimateSegmentRequestTime: estimateSegmentRequestTime,
+ isLowestEnabledRendition: isLowestEnabledRendition
+};
+/**
+ * @file xhr.js
+ */
+
+var videojsXHR = videojs$1.xhr,
+ mergeOptions$1$1 = videojs$1.mergeOptions;
+
+var xhrFactory = function xhrFactory() {
+ var xhr = function XhrFunction(options, callback) {
+ // Add a default timeout for all hls requests
+ options = mergeOptions$1$1({
+ timeout: 45e3
+ }, options); // Allow an optional user-specified function to modify the option
+ // object before we construct the xhr request
+
+ var beforeRequest = XhrFunction.beforeRequest || videojs$1.Hls.xhr.beforeRequest;
+
+ if (beforeRequest && typeof beforeRequest === 'function') {
+ var newOptions = beforeRequest(options);
+
+ if (newOptions) {
+ options = newOptions;
+ }
+ }
+
+ var request = videojsXHR(options, function (error, response) {
+ var reqResponse = request.response;
+
+ if (!error && reqResponse) {
+ request.responseTime = Date.now();
+ request.roundTripTime = request.responseTime - request.requestTime;
+ request.bytesReceived = reqResponse.byteLength || reqResponse.length;
+
+ if (!request.bandwidth) {
+ request.bandwidth = Math.floor(request.bytesReceived / request.roundTripTime * 8 * 1000);
+ }
+ }
+
+ if (response.headers) {
+ request.responseHeaders = response.headers;
+ } // videojs.xhr now uses a specific code on the error
+ // object to signal that a request has timed out instead
+ // of setting a boolean on the request object
+
+
+ if (error && error.code === 'ETIMEDOUT') {
+ request.timedout = true;
+ } // videojs.xhr no longer considers status codes outside of 200 and 0
+ // (for file uris) to be errors, but the old XHR did, so emulate that
+ // behavior. Status 206 may be used in response to byterange requests.
+
+
+ if (!error && !request.aborted && response.statusCode !== 200 && response.statusCode !== 206 && response.statusCode !== 0) {
+ error = new Error('XHR Failed with a response of: ' + (request && (reqResponse || request.responseText)));
+ }
+
+ callback(error, request);
+ });
+ var originalAbort = request.abort;
+
+ request.abort = function () {
+ request.aborted = true;
+ return originalAbort.apply(request, arguments);
+ };
+
+ request.uri = options.uri;
+ request.requestTime = Date.now();
+ return request;
+ };
+
+ return xhr;
+};
+/**
+ * Turns segment byterange into a string suitable for use in
+ * HTTP Range requests
+ *
+ * @param {Object} byterange - an object with two values defining the start and end
+ * of a byte-range
+ */
+
+
+var byterangeStr = function byterangeStr(byterange) {
+ var byterangeStart = void 0;
+ var byterangeEnd = void 0; // `byterangeEnd` is one less than `offset + length` because the HTTP range
+ // header uses inclusive ranges
+
+ byterangeEnd = byterange.offset + byterange.length - 1;
+ byterangeStart = byterange.offset;
+ return 'bytes=' + byterangeStart + '-' + byterangeEnd;
+};
+/**
+ * Defines headers for use in the xhr request for a particular segment.
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ */
+
+
+var segmentXhrHeaders = function segmentXhrHeaders(segment) {
+ var headers = {};
+
+ if (segment.byterange) {
+ headers.Range = byterangeStr(segment.byterange);
+ }
+
+ return headers;
+};
+/**
+ * @file bin-utils.js
+ */
+
+/**
+ * convert a TimeRange to text
+ *
+ * @param {TimeRange} range the timerange to use for conversion
+ * @param {Number} i the iterator on the range to convert
+ */
+
+
+var textRange = function textRange(range, i) {
+ return range.start(i) + '-' + range.end(i);
+};
+/**
+ * format a number as hex string
+ *
+ * @param {Number} e The number
+ * @param {Number} i the iterator
+ */
+
+
+var formatHexString = function formatHexString(e, i) {
+ var value = e.toString(16);
+ return '00'.substring(0, 2 - value.length) + value + (i % 2 ? ' ' : '');
+};
+
+var formatAsciiString = function formatAsciiString(e) {
+ if (e >= 0x20 && e < 0x7e) {
+ return String.fromCharCode(e);
+ }
+
+ return '.';
+};
+/**
+ * Creates an object for sending to a web worker modifying properties that are TypedArrays
+ * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
+ *
+ * @param {Object} message
+ * Object of properties and values to send to the web worker
+ * @return {Object}
+ * Modified message with TypedArray values expanded
+ * @function createTransferableMessage
+ */
+
+
+var createTransferableMessage = function createTransferableMessage(message) {
+ var transferable = {};
+ Object.keys(message).forEach(function (key) {
+ var value = message[key];
+
+ if (ArrayBuffer.isView(value)) {
+ transferable[key] = {
+ bytes: value.buffer,
+ byteOffset: value.byteOffset,
+ byteLength: value.byteLength
+ };
+ } else {
+ transferable[key] = value;
+ }
+ });
+ return transferable;
+};
+/**
+ * Returns a unique string identifier for a media initialization
+ * segment.
+ */
+
+
+var initSegmentId = function initSegmentId(initSegment) {
+ var byterange = initSegment.byterange || {
+ length: Infinity,
+ offset: 0
+ };
+ return [byterange.length, byterange.offset, initSegment.resolvedUri].join(',');
+};
+/**
+ * Returns a unique string identifier for a media segment key.
+ */
+
+
+var segmentKeyId = function segmentKeyId(key) {
+ return key.resolvedUri;
+};
+/**
+ * utils to help dump binary data to the console
+ */
+
+
+var hexDump = function hexDump(data) {
+ var bytes = Array.prototype.slice.call(data);
+ var step = 16;
+ var result = '';
+ var hex = void 0;
+ var ascii = void 0;
+
+ for (var j = 0; j < bytes.length / step; j++) {
+ hex = bytes.slice(j * step, j * step + step).map(formatHexString).join('');
+ ascii = bytes.slice(j * step, j * step + step).map(formatAsciiString).join('');
+ result += hex + ' ' + ascii + '\n';
+ }
+
+ return result;
+};
+
+var tagDump = function tagDump(_ref) {
+ var bytes = _ref.bytes;
+ return hexDump(bytes);
+};
+
+var textRanges = function textRanges(ranges) {
+ var result = '';
+ var i = void 0;
+
+ for (i = 0; i < ranges.length; i++) {
+ result += textRange(ranges, i) + ' ';
+ }
+
+ return result;
+};
+
+var utils =
+/*#__PURE__*/
+Object.freeze({
+ createTransferableMessage: createTransferableMessage,
+ initSegmentId: initSegmentId,
+ segmentKeyId: segmentKeyId,
+ hexDump: hexDump,
+ tagDump: tagDump,
+ textRanges: textRanges
+}); // TODO handle fmp4 case where the timing info is accurate and doesn't involve transmux
+// Add 25% to the segment duration to account for small discrepencies in segment timing.
+// 25% was arbitrarily chosen, and may need to be refined over time.
+
+var SEGMENT_END_FUDGE_PERCENT = 0.25;
+/**
+ * Converts a player time (any time that can be gotten/set from player.currentTime(),
+ * e.g., any time within player.seekable().start(0) to player.seekable().end(0)) to a
+ * program time (any time referencing the real world (e.g., EXT-X-PROGRAM-DATE-TIME)).
+ *
+ * The containing segment is required as the EXT-X-PROGRAM-DATE-TIME serves as an "anchor
+ * point" (a point where we have a mapping from program time to player time, with player
+ * time being the post transmux start of the segment).
+ *
+ * For more details, see [this doc](../../docs/program-time-from-player-time.md).
+ *
+ * @param {Number} playerTime the player time
+ * @param {Object} segment the segment which contains the player time
+ * @return {Date} program time
+ */
+
+var playerTimeToProgramTime = function playerTimeToProgramTime(playerTime, segment) {
+ if (!segment.dateTimeObject) {
+ // Can't convert without an "anchor point" for the program time (i.e., a time that can
+ // be used to map the start of a segment with a real world time).
+ return null;
+ }
+
+ var transmuxerPrependedSeconds = segment.videoTimingInfo.transmuxerPrependedSeconds;
+ var transmuxedStart = segment.videoTimingInfo.transmuxedPresentationStart; // get the start of the content from before old content is prepended
+
+ var startOfSegment = transmuxedStart + transmuxerPrependedSeconds;
+ var offsetFromSegmentStart = playerTime - startOfSegment;
+ return new Date(segment.dateTimeObject.getTime() + offsetFromSegmentStart * 1000);
+};
+
+var originalSegmentVideoDuration = function originalSegmentVideoDuration(videoTimingInfo) {
+ return videoTimingInfo.transmuxedPresentationEnd - videoTimingInfo.transmuxedPresentationStart - videoTimingInfo.transmuxerPrependedSeconds;
+};
+/**
+ * Finds a segment that contains the time requested given as an ISO-8601 string. The
+ * returned segment might be an estimate or an accurate match.
+ *
+ * @param {String} programTime The ISO-8601 programTime to find a match for
+ * @param {Object} playlist A playlist object to search within
+ */
+
+
+var findSegmentForProgramTime = function findSegmentForProgramTime(programTime, playlist) {
+ // Assumptions:
+ // - verifyProgramDateTimeTags has already been run
+ // - live streams have been started
+ var dateTimeObject = void 0;
+
+ try {
+ dateTimeObject = new Date(programTime);
+ } catch (e) {
+ return null;
+ }
+
+ if (!playlist || !playlist.segments || playlist.segments.length === 0) {
+ return null;
+ }
+
+ var segment = playlist.segments[0];
+
+ if (dateTimeObject < segment.dateTimeObject) {
+ // Requested time is before stream start.
+ return null;
+ }
+
+ for (var i = 0; i < playlist.segments.length - 1; i++) {
+ segment = playlist.segments[i];
+ var nextSegmentStart = playlist.segments[i + 1].dateTimeObject;
+
+ if (dateTimeObject < nextSegmentStart) {
+ break;
+ }
+ }
+
+ var lastSegment = playlist.segments[playlist.segments.length - 1];
+ var lastSegmentStart = lastSegment.dateTimeObject;
+ var lastSegmentDuration = lastSegment.videoTimingInfo ? originalSegmentVideoDuration(lastSegment.videoTimingInfo) : lastSegment.duration + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT;
+ var lastSegmentEnd = new Date(lastSegmentStart.getTime() + lastSegmentDuration * 1000);
+
+ if (dateTimeObject > lastSegmentEnd) {
+ // Beyond the end of the stream, or our best guess of the end of the stream.
+ return null;
+ }
+
+ if (dateTimeObject > lastSegmentStart) {
+ segment = lastSegment;
+ }
+
+ return {
+ segment: segment,
+ estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : Playlist.duration(playlist, playlist.mediaSequence + playlist.segments.indexOf(segment)),
+ // Although, given that all segments have accurate date time objects, the segment
+ // selected should be accurate, unless the video has been transmuxed at some point
+ // (determined by the presence of the videoTimingInfo object), the segment's "player
+ // time" (the start time in the player) can't be considered accurate.
+ type: segment.videoTimingInfo ? 'accurate' : 'estimate'
+ };
+};
+/**
+ * Finds a segment that contains the given player time(in seconds).
+ *
+ * @param {Number} time The player time to find a match for
+ * @param {Object} playlist A playlist object to search within
+ */
+
+
+var findSegmentForPlayerTime = function findSegmentForPlayerTime(time, playlist) {
+ // Assumptions:
+ // - there will always be a segment.duration
+ // - we can start from zero
+ // - segments are in time order
+ if (!playlist || !playlist.segments || playlist.segments.length === 0) {
+ return null;
+ }
+
+ var segmentEnd = 0;
+ var segment = void 0;
+
+ for (var i = 0; i < playlist.segments.length; i++) {
+ segment = playlist.segments[i]; // videoTimingInfo is set after the segment is downloaded and transmuxed, and
+ // should contain the most accurate values we have for the segment's player times.
+ //
+ // Use the accurate transmuxedPresentationEnd value if it is available, otherwise fall
+ // back to an estimate based on the manifest derived (inaccurate) segment.duration, to
+ // calculate an end value.
+
+ segmentEnd = segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationEnd : segmentEnd + segment.duration;
+
+ if (time <= segmentEnd) {
+ break;
+ }
+ }
+
+ var lastSegment = playlist.segments[playlist.segments.length - 1];
+
+ if (lastSegment.videoTimingInfo && lastSegment.videoTimingInfo.transmuxedPresentationEnd < time) {
+ // The time requested is beyond the stream end.
+ return null;
+ }
+
+ if (time > segmentEnd) {
+ // The time is within or beyond the last segment.
+ //
+ // Check to see if the time is beyond a reasonable guess of the end of the stream.
+ if (time > segmentEnd + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT) {
+ // Technically, because the duration value is only an estimate, the time may still
+ // exist in the last segment, however, there isn't enough information to make even
+ // a reasonable estimate.
+ return null;
+ }
+
+ segment = lastSegment;
+ }
+
+ return {
+ segment: segment,
+ estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : segmentEnd - segment.duration,
+ // Because videoTimingInfo is only set after transmux, it is the only way to get
+ // accurate timing values.
+ type: segment.videoTimingInfo ? 'accurate' : 'estimate'
+ };
+};
+/**
+ * Gives the offset of the comparisonTimestamp from the programTime timestamp in seconds.
+ * If the offset returned is positive, the programTime occurs after the
+ * comparisonTimestamp.
+ * If the offset is negative, the programTime occurs before the comparisonTimestamp.
+ *
+ * @param {String} comparisonTimeStamp An ISO-8601 timestamp to compare against
+ * @param {String} programTime The programTime as an ISO-8601 string
+ * @return {Number} offset
+ */
+
+
+var getOffsetFromTimestamp = function getOffsetFromTimestamp(comparisonTimeStamp, programTime) {
+ var segmentDateTime = void 0;
+ var programDateTime = void 0;
+
+ try {
+ segmentDateTime = new Date(comparisonTimeStamp);
+ programDateTime = new Date(programTime);
+ } catch (e) {// TODO handle error
+ }
+
+ var segmentTimeEpoch = segmentDateTime.getTime();
+ var programTimeEpoch = programDateTime.getTime();
+ return (programTimeEpoch - segmentTimeEpoch) / 1000;
+};
+/**
+ * Checks that all segments in this playlist have programDateTime tags.
+ *
+ * @param {Object} playlist A playlist object
+ */
+
+
+var verifyProgramDateTimeTags = function verifyProgramDateTimeTags(playlist) {
+ if (!playlist.segments || playlist.segments.length === 0) {
+ return false;
+ }
+
+ for (var i = 0; i < playlist.segments.length; i++) {
+ var segment = playlist.segments[i];
+
+ if (!segment.dateTimeObject) {
+ return false;
+ }
+ }
+
+ return true;
+};
+/**
+ * Returns the programTime of the media given a playlist and a playerTime.
+ * The playlist must have programDateTime tags for a programDateTime tag to be returned.
+ * If the segments containing the time requested have not been buffered yet, an estimate
+ * may be returned to the callback.
+ *
+ * @param {Object} args
+ * @param {Object} args.playlist A playlist object to search within
+ * @param {Number} time A playerTime in seconds
+ * @param {Function} callback(err, programTime)
+ * @returns {String} err.message A detailed error message
+ * @returns {Object} programTime
+ * @returns {Number} programTime.mediaSeconds The streamTime in seconds
+ * @returns {String} programTime.programDateTime The programTime as an ISO-8601 String
+ */
+
+
+var getProgramTime = function getProgramTime(_ref) {
+ var playlist = _ref.playlist,
+ _ref$time = _ref.time,
+ time = _ref$time === undefined ? undefined : _ref$time,
+ callback = _ref.callback;
+
+ if (!callback) {
+ throw new Error('getProgramTime: callback must be provided');
+ }
+
+ if (!playlist || time === undefined) {
+ return callback({
+ message: 'getProgramTime: playlist and time must be provided'
+ });
+ }
+
+ var matchedSegment = findSegmentForPlayerTime(time, playlist);
+
+ if (!matchedSegment) {
+ return callback({
+ message: 'valid programTime was not found'
+ });
+ }
+
+ if (matchedSegment.type === 'estimate') {
+ return callback({
+ message: 'Accurate programTime could not be determined.' + ' Please seek to e.seekTime and try again',
+ seekTime: matchedSegment.estimatedStart
+ });
+ }
+
+ var programTimeObject = {
+ mediaSeconds: time
+ };
+ var programTime = playerTimeToProgramTime(time, matchedSegment.segment);
+
+ if (programTime) {
+ programTimeObject.programDateTime = programTime.toISOString();
+ }
+
+ return callback(null, programTimeObject);
+};
+/**
+ * Seeks in the player to a time that matches the given programTime ISO-8601 string.
+ *
+ * @param {Object} args
+ * @param {String} args.programTime A programTime to seek to as an ISO-8601 String
+ * @param {Object} args.playlist A playlist to look within
+ * @param {Number} args.retryCount The number of times to try for an accurate seek. Default is 2.
+ * @param {Function} args.seekTo A method to perform a seek
+ * @param {Boolean} args.pauseAfterSeek Whether to end in a paused state after seeking. Default is true.
+ * @param {Object} args.tech The tech to seek on
+ * @param {Function} args.callback(err, newTime) A callback to return the new time to
+ * @returns {String} err.message A detailed error message
+ * @returns {Number} newTime The exact time that was seeked to in seconds
+ */
+
+
+var seekToProgramTime = function seekToProgramTime(_ref2) {
+ var programTime = _ref2.programTime,
+ playlist = _ref2.playlist,
+ _ref2$retryCount = _ref2.retryCount,
+ retryCount = _ref2$retryCount === undefined ? 2 : _ref2$retryCount,
+ seekTo = _ref2.seekTo,
+ _ref2$pauseAfterSeek = _ref2.pauseAfterSeek,
+ pauseAfterSeek = _ref2$pauseAfterSeek === undefined ? true : _ref2$pauseAfterSeek,
+ tech = _ref2.tech,
+ callback = _ref2.callback;
+
+ if (!callback) {
+ throw new Error('seekToProgramTime: callback must be provided');
+ }
+
+ if (typeof programTime === 'undefined' || !playlist || !seekTo) {
+ return callback({
+ message: 'seekToProgramTime: programTime, seekTo and playlist must be provided'
+ });
+ }
+
+ if (!playlist.endList && !tech.hasStarted_) {
+ return callback({
+ message: 'player must be playing a live stream to start buffering'
+ });
+ }
+
+ if (!verifyProgramDateTimeTags(playlist)) {
+ return callback({
+ message: 'programDateTime tags must be provided in the manifest ' + playlist.resolvedUri
+ });
+ }
+
+ var matchedSegment = findSegmentForProgramTime(programTime, playlist); // no match
+
+ if (!matchedSegment) {
+ return callback({
+ message: programTime + ' was not found in the stream'
+ });
+ }
+
+ var segment = matchedSegment.segment;
+ var mediaOffset = getOffsetFromTimestamp(segment.dateTimeObject, programTime);
+
+ if (matchedSegment.type === 'estimate') {
+ // we've run out of retries
+ if (retryCount === 0) {
+ return callback({
+ message: programTime + ' is not buffered yet. Try again'
+ });
+ }
+
+ seekTo(matchedSegment.estimatedStart + mediaOffset);
+ tech.one('seeked', function () {
+ seekToProgramTime({
+ programTime: programTime,
+ playlist: playlist,
+ retryCount: retryCount - 1,
+ seekTo: seekTo,
+ pauseAfterSeek: pauseAfterSeek,
+ tech: tech,
+ callback: callback
+ });
+ });
+ return;
+ } // Since the segment.start value is determined from the buffered end or ending time
+ // of the prior segment, the seekToTime doesn't need to account for any transmuxer
+ // modifications.
+
+
+ var seekToTime = segment.start + mediaOffset;
+
+ var seekedCallback = function seekedCallback() {
+ return callback(null, tech.currentTime());
+ }; // listen for seeked event
+
+
+ tech.one('seeked', seekedCallback); // pause before seeking as video.js will restore this state
+
+ if (pauseAfterSeek) {
+ tech.pause();
+ }
+
+ seekTo(seekToTime);
+};
+/**
+ * ranges
+ *
+ * Utilities for working with TimeRanges.
+ *
+ */
+// Fudge factor to account for TimeRanges rounding
+
+
+var TIME_FUDGE_FACTOR = 1 / 30; // Comparisons between time values such as current time and the end of the buffered range
+// can be misleading because of precision differences or when the current media has poorly
+// aligned audio and video, which can cause values to be slightly off from what you would
+// expect. This value is what we consider to be safe to use in such comparisons to account
+// for these scenarios.
+
+var SAFE_TIME_DELTA = TIME_FUDGE_FACTOR * 3;
+
+var filterRanges = function filterRanges(timeRanges, predicate) {
+ var results = [];
+ var i = void 0;
+
+ if (timeRanges && timeRanges.length) {
+ // Search for ranges that match the predicate
+ for (i = 0; i < timeRanges.length; i++) {
+ if (predicate(timeRanges.start(i), timeRanges.end(i))) {
+ results.push([timeRanges.start(i), timeRanges.end(i)]);
+ }
+ }
+ }
+
+ return videojs$1.createTimeRanges(results);
+};
+/**
+ * Attempts to find the buffered TimeRange that contains the specified
+ * time.
+ * @param {TimeRanges} buffered - the TimeRanges object to query
+ * @param {number} time - the time to filter on.
+ * @returns {TimeRanges} a new TimeRanges object
+ */
+
+
+var findRange = function findRange(buffered, time) {
+ return filterRanges(buffered, function (start, end) {
+ return start - SAFE_TIME_DELTA <= time && end + SAFE_TIME_DELTA >= time;
+ });
+};
+/**
+ * Returns the TimeRanges that begin later than the specified time.
+ * @param {TimeRanges} timeRanges - the TimeRanges object to query
+ * @param {number} time - the time to filter on.
+ * @returns {TimeRanges} a new TimeRanges object.
+ */
+
+
+var findNextRange = function findNextRange(timeRanges, time) {
+ return filterRanges(timeRanges, function (start) {
+ return start - TIME_FUDGE_FACTOR >= time;
+ });
+};
+/**
+ * Returns gaps within a list of TimeRanges
+ * @param {TimeRanges} buffered - the TimeRanges object
+ * @return {TimeRanges} a TimeRanges object of gaps
+ */
+
+
+var findGaps = function findGaps(buffered) {
+ if (buffered.length < 2) {
+ return videojs$1.createTimeRanges();
+ }
+
+ var ranges = [];
+
+ for (var i = 1; i < buffered.length; i++) {
+ var start = buffered.end(i - 1);
+ var end = buffered.start(i);
+ ranges.push([start, end]);
+ }
+
+ return videojs$1.createTimeRanges(ranges);
+};
+/**
+ * Gets a human readable string for a TimeRange
+ *
+ * @param {TimeRange} range
+ * @returns {String} a human readable string
+ */
+
+
+var printableRange = function printableRange(range) {
+ var strArr = [];
+
+ if (!range || !range.length) {
+ return '';
+ }
+
+ for (var i = 0; i < range.length; i++) {
+ strArr.push(range.start(i) + ' => ' + range.end(i));
+ }
+
+ return strArr.join(', ');
+};
+/**
+ * Calculates the amount of time left in seconds until the player hits the end of the
+ * buffer and causes a rebuffer
+ *
+ * @param {TimeRange} buffered
+ * The state of the buffer
+ * @param {Numnber} currentTime
+ * The current time of the player
+ * @param {Number} playbackRate
+ * The current playback rate of the player. Defaults to 1.
+ * @return {Number}
+ * Time until the player has to start rebuffering in seconds.
+ * @function timeUntilRebuffer
+ */
+
+
+var timeUntilRebuffer = function timeUntilRebuffer(buffered, currentTime) {
+ var playbackRate = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;
+ var bufferedEnd = buffered.length ? buffered.end(buffered.length - 1) : 0;
+ return (bufferedEnd - currentTime) / playbackRate;
+};
+/**
+ * Converts a TimeRanges object into an array representation
+ * @param {TimeRanges} timeRanges
+ * @returns {Array}
+ */
+
+
+var timeRangesToArray = function timeRangesToArray(timeRanges) {
+ var timeRangesList = [];
+
+ for (var i = 0; i < timeRanges.length; i++) {
+ timeRangesList.push({
+ start: timeRanges.start(i),
+ end: timeRanges.end(i)
+ });
+ }
+
+ return timeRangesList;
+};
+/**
+ * @file create-text-tracks-if-necessary.js
+ */
+
+/**
+ * Create text tracks on video.js if they exist on a segment.
+ *
+ * @param {Object} sourceBuffer the VSB or FSB
+ * @param {Object} mediaSource the HTML media source
+ * @param {Object} segment the segment that may contain the text track
+ * @private
+ */
+
+
+var createTextTracksIfNecessary = function createTextTracksIfNecessary(sourceBuffer, mediaSource, segment) {
+ var player = mediaSource.player_; // create an in-band caption track if one is present in the segment
+
+ if (segment.captions && segment.captions.length) {
+ if (!sourceBuffer.inbandTextTracks_) {
+ sourceBuffer.inbandTextTracks_ = {};
+ }
+
+ for (var trackId in segment.captionStreams) {
+ if (!sourceBuffer.inbandTextTracks_[trackId]) {
+ player.tech_.trigger({
+ type: 'usage',
+ name: 'hls-608'
+ });
+ var track = player.textTracks().getTrackById(trackId);
+
+ if (track) {
+ // Resuse an existing track with a CC# id because this was
+ // very likely created by videojs-contrib-hls from information
+ // in the m3u8 for us to use
+ sourceBuffer.inbandTextTracks_[trackId] = track;
+ } else {
+ // Otherwise, create a track with the default `CC#` label and
+ // without a language
+ sourceBuffer.inbandTextTracks_[trackId] = player.addRemoteTextTrack({
+ kind: 'captions',
+ id: trackId,
+ label: trackId
+ }, false).track;
+ }
+ }
+ }
+ }
+
+ if (segment.metadata && segment.metadata.length && !sourceBuffer.metadataTrack_) {
+ sourceBuffer.metadataTrack_ = player.addRemoteTextTrack({
+ kind: 'metadata',
+ label: 'Timed Metadata'
+ }, false).track;
+ sourceBuffer.metadataTrack_.inBandMetadataTrackDispatchType = segment.metadata.dispatchType;
+ }
+};
+/**
+ * @file remove-cues-from-track.js
+ */
+
+/**
+ * Remove cues from a track on video.js.
+ *
+ * @param {Double} start start of where we should remove the cue
+ * @param {Double} end end of where the we should remove the cue
+ * @param {Object} track the text track to remove the cues from
+ * @private
+ */
+
+
+var removeCuesFromTrack = function removeCuesFromTrack(start, end, track) {
+ var i = void 0;
+ var cue = void 0;
+
+ if (!track) {
+ return;
+ }
+
+ if (!track.cues) {
+ return;
+ }
+
+ i = track.cues.length;
+
+ while (i--) {
+ cue = track.cues[i]; // Remove any overlapping cue
+
+ if (cue.startTime <= end && cue.endTime >= start) {
+ track.removeCue(cue);
+ }
+ }
+};
+/**
+ * @file add-text-track-data.js
+ */
+
+/**
+ * Define properties on a cue for backwards compatability,
+ * but warn the user that the way that they are using it
+ * is depricated and will be removed at a later date.
+ *
+ * @param {Cue} cue the cue to add the properties on
+ * @private
+ */
+
+
+var deprecateOldCue = function deprecateOldCue(cue) {
+ Object.defineProperties(cue.frame, {
+ id: {
+ get: function get() {
+ videojs$1.log.warn('cue.frame.id is deprecated. Use cue.value.key instead.');
+ return cue.value.key;
+ }
+ },
+ value: {
+ get: function get() {
+ videojs$1.log.warn('cue.frame.value is deprecated. Use cue.value.data instead.');
+ return cue.value.data;
+ }
+ },
+ privateData: {
+ get: function get() {
+ videojs$1.log.warn('cue.frame.privateData is deprecated. Use cue.value.data instead.');
+ return cue.value.data;
+ }
+ }
+ });
+};
+
+var durationOfVideo = function durationOfVideo(duration) {
+ var dur = void 0;
+
+ if (isNaN(duration) || Math.abs(duration) === Infinity) {
+ dur = Number.MAX_VALUE;
+ } else {
+ dur = duration;
+ }
+
+ return dur;
+};
+/**
+ * Add text track data to a source handler given the captions and
+ * metadata from the buffer.
+ *
+ * @param {Object} sourceHandler the virtual source buffer
+ * @param {Array} captionArray an array of caption data
+ * @param {Array} metadataArray an array of meta data
+ * @private
+ */
+
+
+var addTextTrackData = function addTextTrackData(sourceHandler, captionArray, metadataArray) {
+ var Cue = window$1.WebKitDataCue || window$1.VTTCue;
+
+ if (captionArray) {
+ captionArray.forEach(function (caption) {
+ var track = caption.stream;
+ this.inbandTextTracks_[track].addCue(new Cue(caption.startTime + this.timestampOffset, caption.endTime + this.timestampOffset, caption.text));
+ }, sourceHandler);
+ }
+
+ if (metadataArray) {
+ var videoDuration = durationOfVideo(sourceHandler.mediaSource_.duration);
+ metadataArray.forEach(function (metadata) {
+ var time = metadata.cueTime + this.timestampOffset; // if time isn't a finite number between 0 and Infinity, like NaN,
+ // ignore this bit of metadata.
+ // This likely occurs when you have an non-timed ID3 tag like TIT2,
+ // which is the "Title/Songname/Content description" frame
+
+ if (typeof time !== 'number' || window$1.isNaN(time) || time < 0 || !(time < Infinity)) {
+ return;
+ }
+
+ metadata.frames.forEach(function (frame) {
+ var cue = new Cue(time, time, frame.value || frame.url || frame.data || '');
+ cue.frame = frame;
+ cue.value = frame;
+ deprecateOldCue(cue);
+ this.metadataTrack_.addCue(cue);
+ }, this);
+ }, sourceHandler); // Updating the metadeta cues so that
+ // the endTime of each cue is the startTime of the next cue
+ // the endTime of last cue is the duration of the video
+
+ if (sourceHandler.metadataTrack_ && sourceHandler.metadataTrack_.cues && sourceHandler.metadataTrack_.cues.length) {
+ var cues = sourceHandler.metadataTrack_.cues;
+ var cuesArray = []; // Create a copy of the TextTrackCueList...
+ // ...disregarding cues with a falsey value
+
+ for (var i = 0; i < cues.length; i++) {
+ if (cues[i]) {
+ cuesArray.push(cues[i]);
+ }
+ } // Group cues by their startTime value
+
+
+ var cuesGroupedByStartTime = cuesArray.reduce(function (obj, cue) {
+ var timeSlot = obj[cue.startTime] || [];
+ timeSlot.push(cue);
+ obj[cue.startTime] = timeSlot;
+ return obj;
+ }, {}); // Sort startTimes by ascending order
+
+ var sortedStartTimes = Object.keys(cuesGroupedByStartTime).sort(function (a, b) {
+ return Number(a) - Number(b);
+ }); // Map each cue group's endTime to the next group's startTime
+
+ sortedStartTimes.forEach(function (startTime, idx) {
+ var cueGroup = cuesGroupedByStartTime[startTime];
+ var nextTime = Number(sortedStartTimes[idx + 1]) || videoDuration; // Map each cue's endTime the next group's startTime
+
+ cueGroup.forEach(function (cue) {
+ cue.endTime = nextTime;
+ });
+ });
+ }
+ }
+};
+
+var win = typeof window !== 'undefined' ? window : {},
+ TARGET = typeof Symbol === 'undefined' ? '__target' : Symbol(),
+ SCRIPT_TYPE = 'application/javascript',
+ BlobBuilder = win.BlobBuilder || win.WebKitBlobBuilder || win.MozBlobBuilder || win.MSBlobBuilder,
+ URL = win.URL || win.webkitURL || URL && URL.msURL,
+ Worker = win.Worker;
+/**
+ * Returns a wrapper around Web Worker code that is constructible.
+ *
+ * @function shimWorker
+ *
+ * @param { String } filename The name of the file
+ * @param { Function } fn Function wrapping the code of the worker
+ */
+
+function shimWorker(filename, fn) {
+ return function ShimWorker(forceFallback) {
+ var o = this;
+
+ if (!fn) {
+ return new Worker(filename);
+ } else if (Worker && !forceFallback) {
+ // Convert the function's inner code to a string to construct the worker
+ var source = fn.toString().replace(/^function.+?{/, '').slice(0, -1),
+ objURL = createSourceObject(source);
+ this[TARGET] = new Worker(objURL);
+ wrapTerminate(this[TARGET], objURL);
+ return this[TARGET];
+ } else {
+ var selfShim = {
+ postMessage: function postMessage(m) {
+ if (o.onmessage) {
+ setTimeout(function () {
+ o.onmessage({
+ data: m,
+ target: selfShim
+ });
+ });
+ }
+ }
+ };
+ fn.call(selfShim);
+
+ this.postMessage = function (m) {
+ setTimeout(function () {
+ selfShim.onmessage({
+ data: m,
+ target: o
+ });
+ });
+ };
+
+ this.isThisThread = true;
+ }
+ };
+} // Test Worker capabilities
+
+
+if (Worker) {
+ var testWorker,
+ objURL = createSourceObject('self.onmessage = function () {}'),
+ testArray = new Uint8Array(1);
+
+ try {
+ testWorker = new Worker(objURL); // Native browser on some Samsung devices throws for transferables, let's detect it
+
+ testWorker.postMessage(testArray, [testArray.buffer]);
+ } catch (e) {
+ Worker = null;
+ } finally {
+ URL.revokeObjectURL(objURL);
+
+ if (testWorker) {
+ testWorker.terminate();
+ }
+ }
+}
+
+function createSourceObject(str) {
+ try {
+ return URL.createObjectURL(new Blob([str], {
+ type: SCRIPT_TYPE
+ }));
+ } catch (e) {
+ var blob = new BlobBuilder();
+ blob.append(str);
+ return URL.createObjectURL(blob.getBlob(type));
+ }
+}
+
+function wrapTerminate(worker, objURL) {
+ if (!worker || !objURL) return;
+ var term = worker.terminate;
+ worker.objURL = objURL;
+
+ worker.terminate = function () {
+ if (worker.objURL) URL.revokeObjectURL(worker.objURL);
+ term.call(worker);
+ };
+}
+
+var TransmuxWorker = new shimWorker("./transmuxer-worker.worker.js", function (window, document$$1) {
+ var self = this;
+
+ var transmuxerWorker = function () {
+ /**
+ * mux.js
+ *
+ * Copyright (c) Brightcove
+ * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+ *
+ * A lightweight readable stream implemention that handles event dispatching.
+ * Objects that inherit from streams should call init in their constructors.
+ */
+ var Stream = function Stream() {
+ this.init = function () {
+ var listeners = {};
+ /**
+ * Add a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} the callback to be invoked when an event of
+ * the specified type occurs
+ */
+
+ this.on = function (type, listener) {
+ if (!listeners[type]) {
+ listeners[type] = [];
+ }
+
+ listeners[type] = listeners[type].concat(listener);
+ };
+ /**
+ * Remove a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} a function previously registered for this
+ * type of event through `on`
+ */
+
+
+ this.off = function (type, listener) {
+ var index;
+
+ if (!listeners[type]) {
+ return false;
+ }
+
+ index = listeners[type].indexOf(listener);
+ listeners[type] = listeners[type].slice();
+ listeners[type].splice(index, 1);
+ return index > -1;
+ };
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ * @param type {string} the event name
+ */
+
+
+ this.trigger = function (type) {
+ var callbacks, i, length, args;
+ callbacks = listeners[type];
+
+ if (!callbacks) {
+ return;
+ } // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+
+
+ if (arguments.length === 2) {
+ length = callbacks.length;
+
+ for (i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ args = [];
+ i = arguments.length;
+
+ for (i = 1; i < arguments.length; ++i) {
+ args.push(arguments[i]);
+ }
+
+ length = callbacks.length;
+
+ for (i = 0; i < length; ++i) {
+ callbacks[i].apply(this, args);
+ }
+ }
+ };
+ /**
+ * Destroys the stream and cleans up.
+ */
+
+
+ this.dispose = function () {
+ listeners = {};
+ };
+ };
+ };
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ * @param destination {stream} the stream that will receive all `data` events
+ * @param autoFlush {boolean} if false, we will not call `flush` on the destination
+ * when the current stream emits a 'done' event
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+
+
+ Stream.prototype.pipe = function (destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+ this.on('done', function (flushSource) {
+ destination.flush(flushSource);
+ });
+ this.on('partialdone', function (flushSource) {
+ destination.partialFlush(flushSource);
+ });
+ this.on('endedtimeline', function (flushSource) {
+ destination.endTimeline(flushSource);
+ });
+ this.on('reset', function (flushSource) {
+ destination.reset(flushSource);
+ });
+ return destination;
+ }; // Default stream functions that are expected to be overridden to perform
+ // actual work. These are provided by the prototype as a sort of no-op
+ // implementation so that we don't have to check for their existence in the
+ // `pipe` function above.
+
+
+ Stream.prototype.push = function (data) {
+ this.trigger('data', data);
+ };
+
+ Stream.prototype.flush = function (flushSource) {
+ this.trigger('done', flushSource);
+ };
+
+ Stream.prototype.partialFlush = function (flushSource) {
+ this.trigger('partialdone', flushSource);
+ };
+
+ Stream.prototype.endTimeline = function (flushSource) {
+ this.trigger('endedtimeline', flushSource);
+ };
+
+ Stream.prototype.reset = function (flushSource) {
+ this.trigger('reset', flushSource);
+ };
+
+ var stream = Stream;
+ /**
+ * mux.js
+ *
+ * Copyright (c) Brightcove
+ * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+ *
+ * Functions that generate fragmented MP4s suitable for use with Media
+ * Source Extensions.
+ */
+
+ var UINT32_MAX = Math.pow(2, 32) - 1;
+ var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS; // pre-calculate constants
+
+ (function () {
+ var i;
+ types = {
+ avc1: [],
+ // codingname
+ avcC: [],
+ btrt: [],
+ dinf: [],
+ dref: [],
+ esds: [],
+ ftyp: [],
+ hdlr: [],
+ mdat: [],
+ mdhd: [],
+ mdia: [],
+ mfhd: [],
+ minf: [],
+ moof: [],
+ moov: [],
+ mp4a: [],
+ // codingname
+ mvex: [],
+ mvhd: [],
+ pasp: [],
+ sdtp: [],
+ smhd: [],
+ stbl: [],
+ stco: [],
+ stsc: [],
+ stsd: [],
+ stsz: [],
+ stts: [],
+ styp: [],
+ tfdt: [],
+ tfhd: [],
+ traf: [],
+ trak: [],
+ trun: [],
+ trex: [],
+ tkhd: [],
+ vmhd: []
+ }; // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we
+ // don't throw an error
+
+ if (typeof Uint8Array === 'undefined') {
+ return;
+ }
+
+ for (i in types) {
+ if (types.hasOwnProperty(i)) {
+ types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];
+ }
+ }
+
+ MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);
+ AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);
+ MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);
+ VIDEO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'
+ ]);
+ AUDIO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'
+ ]);
+ HDLR_TYPES = {
+ video: VIDEO_HDLR,
+ audio: AUDIO_HDLR
+ };
+ DREF = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // entry_count
+ 0x00, 0x00, 0x00, 0x0c, // entry_size
+ 0x75, 0x72, 0x6c, 0x20, // 'url' type
+ 0x00, // version 0
+ 0x00, 0x00, 0x01 // entry_flags
+ ]);
+ SMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, // balance, 0 means centered
+ 0x00, 0x00 // reserved
+ ]);
+ STCO = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00 // entry_count
+ ]);
+ STSC = STCO;
+ STSZ = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // sample_size
+ 0x00, 0x00, 0x00, 0x00 // sample_count
+ ]);
+ STTS = STCO;
+ VMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x01, // flags
+ 0x00, 0x00, // graphicsmode
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
+ ]);
+ })();
+
+ box = function box(type) {
+ var payload = [],
+ size = 0,
+ i,
+ result,
+ view;
+
+ for (i = 1; i < arguments.length; i++) {
+ payload.push(arguments[i]);
+ }
+
+ i = payload.length; // calculate the total size we need to allocate
+
+ while (i--) {
+ size += payload[i].byteLength;
+ }
+
+ result = new Uint8Array(size + 8);
+ view = new DataView(result.buffer, result.byteOffset, result.byteLength);
+ view.setUint32(0, result.byteLength);
+ result.set(type, 4); // copy the payload into the result
+
+ for (i = 0, size = 8; i < payload.length; i++) {
+ result.set(payload[i], size);
+ size += payload[i].byteLength;
+ }
+
+ return result;
+ };
+
+ dinf = function dinf() {
+ return box(types.dinf, box(types.dref, DREF));
+ };
+
+ esds = function esds(track) {
+ return box(types.esds, new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ // ES_Descriptor
+ 0x03, // tag, ES_DescrTag
+ 0x19, // length
+ 0x00, 0x00, // ES_ID
+ 0x00, // streamDependenceFlag, URL_flag, reserved, streamPriority
+ // DecoderConfigDescriptor
+ 0x04, // tag, DecoderConfigDescrTag
+ 0x11, // length
+ 0x40, // object type
+ 0x15, // streamType
+ 0x00, 0x06, 0x00, // bufferSizeDB
+ 0x00, 0x00, 0xda, 0xc0, // maxBitrate
+ 0x00, 0x00, 0xda, 0xc0, // avgBitrate
+ // DecoderSpecificInfo
+ 0x05, // tag, DecoderSpecificInfoTag
+ 0x02, // length
+ // ISO/IEC 14496-3, AudioSpecificConfig
+ // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35
+ track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig
+ ]));
+ };
+
+ ftyp = function ftyp() {
+ return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);
+ };
+
+ hdlr = function hdlr(type) {
+ return box(types.hdlr, HDLR_TYPES[type]);
+ };
+
+ mdat = function mdat(data) {
+ return box(types.mdat, data);
+ };
+
+ mdhd = function mdhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x02, // creation_time
+ 0x00, 0x00, 0x00, 0x03, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+ track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF, // duration
+ 0x55, 0xc4, // 'und' language (undetermined)
+ 0x00, 0x00]); // Use the sample rate from the track metadata, when it is
+ // defined. The sample rate can be parsed out of an ADTS header, for
+ // instance.
+
+ if (track.samplerate) {
+ result[12] = track.samplerate >>> 24 & 0xFF;
+ result[13] = track.samplerate >>> 16 & 0xFF;
+ result[14] = track.samplerate >>> 8 & 0xFF;
+ result[15] = track.samplerate & 0xFF;
+ }
+
+ return box(types.mdhd, result);
+ };
+
+ mdia = function mdia(track) {
+ return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));
+ };
+
+ mfhd = function mfhd(sequenceNumber) {
+ return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags
+ (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number
+ ]));
+ };
+
+ minf = function minf(track) {
+ return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));
+ };
+
+ moof = function moof(sequenceNumber, tracks) {
+ var trackFragments = [],
+ i = tracks.length; // build traf boxes for each track fragment
+
+ while (i--) {
+ trackFragments[i] = traf(tracks[i]);
+ }
+
+ return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));
+ };
+ /**
+ * Returns a movie box.
+ * @param tracks {array} the tracks associated with this movie
+ * @see ISO/IEC 14496-12:2012(E), section 8.2.1
+ */
+
+
+ moov = function moov(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trak(tracks[i]);
+ }
+
+ return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));
+ };
+
+ mvex = function mvex(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trex(tracks[i]);
+ }
+
+ return box.apply(null, [types.mvex].concat(boxes));
+ };
+
+ mvhd = function mvhd(duration) {
+ var bytes = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // creation_time
+ 0x00, 0x00, 0x00, 0x02, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+ (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF, // duration
+ 0x00, 0x01, 0x00, 0x00, // 1.0 rate
+ 0x01, 0x00, // 1.0 volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0xff, 0xff, 0xff, 0xff // next_track_ID
+ ]);
+ return box(types.mvhd, bytes);
+ };
+
+ sdtp = function sdtp(track) {
+ var samples = track.samples || [],
+ bytes = new Uint8Array(4 + samples.length),
+ flags,
+ i; // leave the full box header (4 bytes) all zero
+ // write the sample table
+
+ for (i = 0; i < samples.length; i++) {
+ flags = samples[i].flags;
+ bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;
+ }
+
+ return box(types.sdtp, bytes);
+ };
+
+ stbl = function stbl(track) {
+ return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));
+ };
+
+ (function () {
+ var videoSample, audioSample;
+
+ stsd = function stsd(track) {
+ return box(types.stsd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));
+ };
+
+ videoSample = function videoSample(track) {
+ var sps = track.sps || [],
+ pps = track.pps || [],
+ sequenceParameterSets = [],
+ pictureParameterSets = [],
+ i,
+ avc1Box; // assemble the SPSs
+
+ for (i = 0; i < sps.length; i++) {
+ sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);
+ sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength
+
+ sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS
+ } // assemble the PPSs
+
+
+ for (i = 0; i < pps.length; i++) {
+ pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);
+ pictureParameterSets.push(pps[i].byteLength & 0xFF);
+ pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));
+ }
+
+ avc1Box = [types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ (track.width & 0xff00) >> 8, track.width & 0xff, // width
+ (track.height & 0xff00) >> 8, track.height & 0xff, // height
+ 0x00, 0x48, 0x00, 0x00, // horizresolution
+ 0x00, 0x48, 0x00, 0x00, // vertresolution
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // frame_count
+ 0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname
+ 0x00, 0x18, // depth = 24
+ 0x11, 0x11 // pre_defined = -1
+ ]), box(types.avcC, new Uint8Array([0x01, // configurationVersion
+ track.profileIdc, // AVCProfileIndication
+ track.profileCompatibility, // profile_compatibility
+ track.levelIdc, // AVCLevelIndication
+ 0xff // lengthSizeMinusOne, hard-coded to 4 bytes
+ ].concat([sps.length], // numOfSequenceParameterSets
+ sequenceParameterSets, // "SPS"
+ [pps.length], // numOfPictureParameterSets
+ pictureParameterSets // "PPS"
+ ))), box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB
+ 0x00, 0x2d, 0xc6, 0xc0, // maxBitrate
+ 0x00, 0x2d, 0xc6, 0xc0 // avgBitrate
+ ]))];
+
+ if (track.sarRatio) {
+ var hSpacing = track.sarRatio[0],
+ vSpacing = track.sarRatio[1];
+ avc1Box.push(box(types.pasp, new Uint8Array([(hSpacing & 0xFF000000) >> 24, (hSpacing & 0xFF0000) >> 16, (hSpacing & 0xFF00) >> 8, hSpacing & 0xFF, (vSpacing & 0xFF000000) >> 24, (vSpacing & 0xFF0000) >> 16, (vSpacing & 0xFF00) >> 8, vSpacing & 0xFF])));
+ }
+
+ return box.apply(null, avc1Box);
+ };
+
+ audioSample = function audioSample(track) {
+ return box(types.mp4a, new Uint8Array([// SampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+ // AudioSampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff, // channelcount
+ (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff, // samplesize
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+ (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16
+ // MP4AudioSampleEntry, ISO/IEC 14496-14
+ ]), esds(track));
+ };
+ })();
+
+ tkhd = function tkhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x07, // flags
+ 0x00, 0x00, 0x00, 0x00, // creation_time
+ 0x00, 0x00, 0x00, 0x00, // modification_time
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF, // duration
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, // layer
+ 0x00, 0x00, // alternate_group
+ 0x01, 0x00, // non-audio track volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00, // width
+ (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height
+ ]);
+ return box(types.tkhd, result);
+ };
+ /**
+ * Generate a track fragment (traf) box. A traf box collects metadata
+ * about tracks in a movie fragment (moof) box.
+ */
+
+
+ traf = function traf(track) {
+ var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;
+ trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x3a, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x00, 0x00, 0x00 // default_sample_flags
+ ]));
+ upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / (UINT32_MAX + 1));
+ lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % (UINT32_MAX + 1));
+ trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01, // version 1
+ 0x00, 0x00, 0x00, // flags
+ // baseMediaDecodeTime
+ upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF])); // the data offset specifies the number of bytes from the start of
+ // the containing moof to the first payload byte of the associated
+ // mdat
+
+ dataOffset = 32 + // tfhd
+ 20 + // tfdt
+ 8 + // traf header
+ 16 + // mfhd
+ 8 + // moof header
+ 8; // mdat header
+ // audio tracks require less metadata
+
+ if (track.type === 'audio') {
+ trackFragmentRun = trun(track, dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);
+ } // video tracks should contain an independent and disposable samples
+ // box (sdtp)
+ // generate one and adjust offsets to match
+
+
+ sampleDependencyTable = sdtp(track);
+ trackFragmentRun = trun(track, sampleDependencyTable.length + dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);
+ };
+ /**
+ * Generate a track box.
+ * @param track {object} a track definition
+ * @return {Uint8Array} the track box
+ */
+
+
+ trak = function trak(track) {
+ track.duration = track.duration || 0xffffffff;
+ return box(types.trak, tkhd(track), mdia(track));
+ };
+
+ trex = function trex(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // default_sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x01, 0x00, 0x01 // default_sample_flags
+ ]); // the last two bytes of default_sample_flags is the sample
+ // degradation priority, a hint about the importance of this sample
+ // relative to others. Lower the degradation priority for all sample
+ // types other than video.
+
+ if (track.type !== 'video') {
+ result[result.length - 1] = 0x00;
+ }
+
+ return box(types.trex, result);
+ };
+
+ (function () {
+ var audioTrun, videoTrun, trunHeader; // This method assumes all samples are uniform. That is, if a
+ // duration is present for the first sample, it will be present for
+ // all subsequent samples.
+ // see ISO/IEC 14496-12:2012, Section 8.8.8.1
+
+ trunHeader = function trunHeader(samples, offset) {
+ var durationPresent = 0,
+ sizePresent = 0,
+ flagsPresent = 0,
+ compositionTimeOffset = 0; // trun flag constants
+
+ if (samples.length) {
+ if (samples[0].duration !== undefined) {
+ durationPresent = 0x1;
+ }
+
+ if (samples[0].size !== undefined) {
+ sizePresent = 0x2;
+ }
+
+ if (samples[0].flags !== undefined) {
+ flagsPresent = 0x4;
+ }
+
+ if (samples[0].compositionTimeOffset !== undefined) {
+ compositionTimeOffset = 0x8;
+ }
+ }
+
+ return [0x00, // version 0
+ 0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01, // flags
+ (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF, // sample_count
+ (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset
+ ];
+ };
+
+ videoTrun = function videoTrun(track, offset) {
+ var bytes, samples, sample, i;
+ samples = track.samples || [];
+ offset += 8 + 12 + 16 * samples.length;
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF, // sample_size
+ sample.flags.isLeading << 2 | sample.flags.dependsOn, sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample, sample.flags.degradationPriority & 0xF0 << 8, sample.flags.degradationPriority & 0x0F, // sample_flags
+ (sample.compositionTimeOffset & 0xFF000000) >>> 24, (sample.compositionTimeOffset & 0xFF0000) >>> 16, (sample.compositionTimeOffset & 0xFF00) >>> 8, sample.compositionTimeOffset & 0xFF // sample_composition_time_offset
+ ]);
+ }
+
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ audioTrun = function audioTrun(track, offset) {
+ var bytes, samples, sample, i;
+ samples = track.samples || [];
+ offset += 8 + 12 + 8 * samples.length;
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF]); // sample_size
+ }
+
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ trun = function trun(track, offset) {
+ if (track.type === 'audio') {
+ return audioTrun(track, offset);
+ }
+
+ return videoTrun(track, offset);
+ };
+ })();
+
+ var mp4Generator = {
+ ftyp: ftyp,
+ mdat: mdat,
+ moof: moof,
+ moov: moov,
+ initSegment: function initSegment(tracks) {
+ var fileType = ftyp(),
+ movie = moov(tracks),
+ result;
+ result = new Uint8Array(fileType.byteLength + movie.byteLength);
+ result.set(fileType);
+ result.set(movie, fileType.byteLength);
+ return result;
+ }
+ };
+ /**
+ * mux.js
+ *
+ * Copyright (c) Brightcove
+ * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+ */
+ // Convert an array of nal units into an array of frames with each frame being
+ // composed of the nal units that make up that frame
+ // Also keep track of cummulative data about the frame from the nal units such
+ // as the frame duration, starting pts, etc.
+
+ var groupNalsIntoFrames = function groupNalsIntoFrames(nalUnits) {
+ var i,
+ currentNal,
+ currentFrame = [],
+ frames = []; // TODO added for LHLS, make sure this is OK
+
+ frames.byteLength = 0;
+ frames.nalCount = 0;
+ frames.duration = 0;
+ currentFrame.byteLength = 0;
+
+ for (i = 0; i < nalUnits.length; i++) {
+ currentNal = nalUnits[i]; // Split on 'aud'-type nal units
+
+ if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {
+ // Since the very first nal unit is expected to be an AUD
+ // only push to the frames array when currentFrame is not empty
+ if (currentFrame.length) {
+ currentFrame.duration = currentNal.dts - currentFrame.dts; // TODO added for LHLS, make sure this is OK
+
+ frames.byteLength += currentFrame.byteLength;
+ frames.nalCount += currentFrame.length;
+ frames.duration += currentFrame.duration;
+ frames.push(currentFrame);
+ }
+
+ currentFrame = [currentNal];
+ currentFrame.byteLength = currentNal.data.byteLength;
+ currentFrame.pts = currentNal.pts;
+ currentFrame.dts = currentNal.dts;
+ } else {
+ // Specifically flag key frames for ease of use later
+ if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {
+ currentFrame.keyFrame = true;
+ }
+
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ currentFrame.byteLength += currentNal.data.byteLength;
+ currentFrame.push(currentNal);
+ }
+ } // For the last frame, use the duration of the previous frame if we
+ // have nothing better to go on
+
+
+ if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {
+ currentFrame.duration = frames[frames.length - 1].duration;
+ } // Push the final frame
+ // TODO added for LHLS, make sure this is OK
+
+
+ frames.byteLength += currentFrame.byteLength;
+ frames.nalCount += currentFrame.length;
+ frames.duration += currentFrame.duration;
+ frames.push(currentFrame);
+ return frames;
+ }; // Convert an array of frames into an array of Gop with each Gop being composed
+ // of the frames that make up that Gop
+ // Also keep track of cummulative data about the Gop from the frames such as the
+ // Gop duration, starting pts, etc.
+
+
+ var groupFramesIntoGops = function groupFramesIntoGops(frames) {
+ var i,
+ currentFrame,
+ currentGop = [],
+ gops = []; // We must pre-set some of the values on the Gop since we
+ // keep running totals of these values
+
+ currentGop.byteLength = 0;
+ currentGop.nalCount = 0;
+ currentGop.duration = 0;
+ currentGop.pts = frames[0].pts;
+ currentGop.dts = frames[0].dts; // store some metadata about all the Gops
+
+ gops.byteLength = 0;
+ gops.nalCount = 0;
+ gops.duration = 0;
+ gops.pts = frames[0].pts;
+ gops.dts = frames[0].dts;
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ if (currentFrame.keyFrame) {
+ // Since the very first frame is expected to be an keyframe
+ // only push to the gops array when currentGop is not empty
+ if (currentGop.length) {
+ gops.push(currentGop);
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+ }
+
+ currentGop = [currentFrame];
+ currentGop.nalCount = currentFrame.length;
+ currentGop.byteLength = currentFrame.byteLength;
+ currentGop.pts = currentFrame.pts;
+ currentGop.dts = currentFrame.dts;
+ currentGop.duration = currentFrame.duration;
+ } else {
+ currentGop.duration += currentFrame.duration;
+ currentGop.nalCount += currentFrame.length;
+ currentGop.byteLength += currentFrame.byteLength;
+ currentGop.push(currentFrame);
+ }
+ }
+
+ if (gops.length && currentGop.duration <= 0) {
+ currentGop.duration = gops[gops.length - 1].duration;
+ }
+
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration; // push the final Gop
+
+ gops.push(currentGop);
+ return gops;
+ };
+ /*
+ * Search for the first keyframe in the GOPs and throw away all frames
+ * until that keyframe. Then extend the duration of the pulled keyframe
+ * and pull the PTS and DTS of the keyframe so that it covers the time
+ * range of the frames that were disposed.
+ *
+ * @param {Array} gops video GOPs
+ * @returns {Array} modified video GOPs
+ */
+
+
+ var extendFirstKeyFrame = function extendFirstKeyFrame(gops) {
+ var currentGop;
+
+ if (!gops[0][0].keyFrame && gops.length > 1) {
+ // Remove the first GOP
+ currentGop = gops.shift();
+ gops.byteLength -= currentGop.byteLength;
+ gops.nalCount -= currentGop.nalCount; // Extend the first frame of what is now the
+ // first gop to cover the time period of the
+ // frames we just removed
+
+ gops[0][0].dts = currentGop.dts;
+ gops[0][0].pts = currentGop.pts;
+ gops[0][0].duration += currentGop.duration;
+ }
+
+ return gops;
+ };
+ /**
+ * Default sample object
+ * see ISO/IEC 14496-12:2012, section 8.6.4.3
+ */
+
+
+ var createDefaultSample = function createDefaultSample() {
+ return {
+ size: 0,
+ flags: {
+ isLeading: 0,
+ dependsOn: 1,
+ isDependedOn: 0,
+ hasRedundancy: 0,
+ degradationPriority: 0,
+ isNonSyncSample: 1
+ }
+ };
+ };
+ /*
+ * Collates information from a video frame into an object for eventual
+ * entry into an MP4 sample table.
+ *
+ * @param {Object} frame the video frame
+ * @param {Number} dataOffset the byte offset to position the sample
+ * @return {Object} object containing sample table info for a frame
+ */
+
+
+ var sampleForFrame = function sampleForFrame(frame, dataOffset) {
+ var sample = createDefaultSample();
+ sample.dataOffset = dataOffset;
+ sample.compositionTimeOffset = frame.pts - frame.dts;
+ sample.duration = frame.duration;
+ sample.size = 4 * frame.length; // Space for nal unit size
+
+ sample.size += frame.byteLength;
+
+ if (frame.keyFrame) {
+ sample.flags.dependsOn = 2;
+ sample.flags.isNonSyncSample = 0;
+ }
+
+ return sample;
+ }; // generate the track's sample table from an array of gops
+
+
+ var generateSampleTable = function generateSampleTable(gops, baseDataOffset) {
+ var h,
+ i,
+ sample,
+ currentGop,
+ currentFrame,
+ dataOffset = baseDataOffset || 0,
+ samples = [];
+
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+ sample = sampleForFrame(currentFrame, dataOffset);
+ dataOffset += sample.size;
+ samples.push(sample);
+ }
+ }
+
+ return samples;
+ }; // generate the track's raw mdat data from an array of gops
+
+
+ var concatenateNalData = function concatenateNalData(gops) {
+ var h,
+ i,
+ j,
+ currentGop,
+ currentFrame,
+ currentNal,
+ dataOffset = 0,
+ nalsByteLength = gops.byteLength,
+ numberOfNals = gops.nalCount,
+ totalByteLength = nalsByteLength + 4 * numberOfNals,
+ data = new Uint8Array(totalByteLength),
+ view = new DataView(data.buffer); // For each Gop..
+
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h]; // For each Frame..
+
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i]; // For each NAL..
+
+ for (j = 0; j < currentFrame.length; j++) {
+ currentNal = currentFrame[j];
+ view.setUint32(dataOffset, currentNal.data.byteLength);
+ dataOffset += 4;
+ data.set(currentNal.data, dataOffset);
+ dataOffset += currentNal.data.byteLength;
+ }
+ }
+ }
+
+ return data;
+ }; // generate the track's sample table from a frame
+
+
+ var generateSampleTableForFrame = function generateSampleTableForFrame(frame, baseDataOffset) {
+ var sample,
+ dataOffset = baseDataOffset || 0,
+ samples = [];
+ sample = sampleForFrame(frame, dataOffset);
+ samples.push(sample);
+ return samples;
+ }; // generate the track's raw mdat data from a frame
+
+
+ var concatenateNalDataForFrame = function concatenateNalDataForFrame(frame) {
+ var i,
+ currentNal,
+ dataOffset = 0,
+ nalsByteLength = frame.byteLength,
+ numberOfNals = frame.length,
+ totalByteLength = nalsByteLength + 4 * numberOfNals,
+ data = new Uint8Array(totalByteLength),
+ view = new DataView(data.buffer); // For each NAL..
+
+ for (i = 0; i < frame.length; i++) {
+ currentNal = frame[i];
+ view.setUint32(dataOffset, currentNal.data.byteLength);
+ dataOffset += 4;
+ data.set(currentNal.data, dataOffset);
+ dataOffset += currentNal.data.byteLength;
+ }
+
+ return data;
+ };
+
+ var frameUtils = {
+ groupNalsIntoFrames: groupNalsIntoFrames,
+ groupFramesIntoGops: groupFramesIntoGops,
+ extendFirstKeyFrame: extendFirstKeyFrame,
+ generateSampleTable: generateSampleTable,
+ concatenateNalData: concatenateNalData,
+ generateSampleTableForFrame: generateSampleTableForFrame,
+ concatenateNalDataForFrame: concatenateNalDataForFrame
+ };
+ /**
+ * mux.js
+ *
+ * Copyright (c) Brightcove
+ * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+ */
+
+ var highPrefix = [33, 16, 5, 32, 164, 27];
+ var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];
+
+ var zeroFill = function zeroFill(count) {
+ var a = [];
+
+ while (count--) {
+ a.push(0);
+ }
+
+ return a;
+ };
+
+ var makeTable = function makeTable(metaTable) {
+ return Object.keys(metaTable).reduce(function (obj, key) {
+ obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {
+ return arr.concat(part);
+ }, []));
+ return obj;
+ }, {});
+ }; // Frames-of-silence to use for filling in missing AAC frames
+
+
+ var coneOfSilence = {
+ 96000: [highPrefix, [227, 64], zeroFill(154), [56]],
+ 88200: [highPrefix, [231], zeroFill(170), [56]],
+ 64000: [highPrefix, [248, 192], zeroFill(240), [56]],
+ 48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],
+ 44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],
+ 32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],
+ 24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],
+ 16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],
+ 12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],
+ 11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],
+ 8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]
+ };
+ var silence = makeTable(coneOfSilence);
+ /**
+ * mux.js
+ *
+ * Copyright (c) Brightcove
+ * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+ */
+
+ var ONE_SECOND_IN_TS = 90000,
+ // 90kHz clock
+ secondsToVideoTs,
+ secondsToAudioTs,
+ videoTsToSeconds,
+ audioTsToSeconds,
+ audioTsToVideoTs,
+ videoTsToAudioTs,
+ metadataTsToSeconds;
+
+ secondsToVideoTs = function secondsToVideoTs(seconds) {
+ return seconds * ONE_SECOND_IN_TS;
+ };
+
+ secondsToAudioTs = function secondsToAudioTs(seconds, sampleRate) {
+ return seconds * sampleRate;
+ };
+
+ videoTsToSeconds = function videoTsToSeconds(timestamp) {
+ return timestamp / ONE_SECOND_IN_TS;
+ };
+
+ audioTsToSeconds = function audioTsToSeconds(timestamp, sampleRate) {
+ return timestamp / sampleRate;
+ };
+
+ audioTsToVideoTs = function audioTsToVideoTs(timestamp, sampleRate) {
+ return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
+ };
+
+ videoTsToAudioTs = function videoTsToAudioTs(timestamp, sampleRate) {
+ return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
+ };
+ /**
+ * Adjust ID3 tag or caption timing information by the timeline pts values
+ * (if keepOriginalTimestamps is false) and convert to seconds
+ */
+
+
+ metadataTsToSeconds = function metadataTsToSeconds(timestamp, timelineStartPts, keepOriginalTimestamps) {
+ return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);
+ };
+
+ var clock = {
+ ONE_SECOND_IN_TS: ONE_SECOND_IN_TS,
+ secondsToVideoTs: secondsToVideoTs,
+ secondsToAudioTs: secondsToAudioTs,
+ videoTsToSeconds: videoTsToSeconds,
+ audioTsToSeconds: audioTsToSeconds,
+ audioTsToVideoTs: audioTsToVideoTs,
+ videoTsToAudioTs: videoTsToAudioTs,
+ metadataTsToSeconds: metadataTsToSeconds
+ };
+ /**
+ * mux.js
+ *
+ * Copyright (c) Brightcove
+ * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+ */
+
+ /**
+ * Sum the `byteLength` properties of the data in each AAC frame
+ */
+
+ var sumFrameByteLengths = function sumFrameByteLengths(array) {
+ var i,
+ currentObj,
+ sum = 0; // sum the byteLength's all each nal unit in the frame
+
+ for (i = 0; i < array.length; i++) {
+ currentObj = array[i];
+ sum += currentObj.data.byteLength;
+ }
+
+ return sum;
+ }; // Possibly pad (prefix) the audio track with silence if appending this track
+ // would lead to the introduction of a gap in the audio buffer
+
+
+ var prefixWithSilence = function prefixWithSilence(track, frames, audioAppendStartTs, videoBaseMediaDecodeTime) {
+ var baseMediaDecodeTimeTs,
+ frameDuration = 0,
+ audioGapDuration = 0,
+ audioFillFrameCount = 0,
+ audioFillDuration = 0,
+ silentFrame,
+ i,
+ firstFrame;
+
+ if (!frames.length) {
+ return;
+ }
+
+ baseMediaDecodeTimeTs = clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate); // determine frame clock duration based on sample rate, round up to avoid overfills
+
+ frameDuration = Math.ceil(clock.ONE_SECOND_IN_TS / (track.samplerate / 1024));
+
+ if (audioAppendStartTs && videoBaseMediaDecodeTime) {
+ // insert the shortest possible amount (audio gap or audio to video gap)
+ audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime); // number of full frames in the audio gap
+
+ audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);
+ audioFillDuration = audioFillFrameCount * frameDuration;
+ } // don't attempt to fill gaps smaller than a single frame or larger
+ // than a half second
+
+
+ if (audioFillFrameCount < 1 || audioFillDuration > clock.ONE_SECOND_IN_TS / 2) {
+ return;
+ }
+
+ silentFrame = silence[track.samplerate];
+
+ if (!silentFrame) {
+ // we don't have a silent frame pregenerated for the sample rate, so use a frame
+ // from the content instead
+ silentFrame = frames[0].data;
+ }
+
+ for (i = 0; i < audioFillFrameCount; i++) {
+ firstFrame = frames[0];
+ frames.splice(0, 0, {
+ data: silentFrame,
+ dts: firstFrame.dts - frameDuration,
+ pts: firstFrame.pts - frameDuration
+ });
+ }
+
+ track.baseMediaDecodeTime -= Math.floor(clock.videoTsToAudioTs(audioFillDuration, track.samplerate));
+ }; // If the audio segment extends before the earliest allowed dts
+ // value, remove AAC frames until starts at or after the earliest
+ // allowed DTS so that we don't end up with a negative baseMedia-
+ // DecodeTime for the audio track
+
+
+ var trimAdtsFramesByEarliestDts = function trimAdtsFramesByEarliestDts(adtsFrames, track, earliestAllowedDts) {
+ if (track.minSegmentDts >= earliestAllowedDts) {
+ return adtsFrames;
+ } // We will need to recalculate the earliest segment Dts
+
+
+ track.minSegmentDts = Infinity;
+ return adtsFrames.filter(function (currentFrame) {
+ // If this is an allowed frame, keep it and record it's Dts
+ if (currentFrame.dts >= earliestAllowedDts) {
+ track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);
+ track.minSegmentPts = track.minSegmentDts;
+ return true;
+ } // Otherwise, discard it
+
+
+ return false;
+ });
+ }; // generate the track's raw mdat data from an array of frames
+
+
+ var generateSampleTable$1 = function generateSampleTable(frames) {
+ var i,
+ currentFrame,
+ samples = [];
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+ samples.push({
+ size: currentFrame.data.byteLength,
+ duration: 1024 // For AAC audio, all samples contain 1024 samples
+
+ });
+ }
+
+ return samples;
+ }; // generate the track's sample table from an array of frames
+
+
+ var concatenateFrameData = function concatenateFrameData(frames) {
+ var i,
+ currentFrame,
+ dataOffset = 0,
+ data = new Uint8Array(sumFrameByteLengths(frames));
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+ data.set(currentFrame.data, dataOffset);
+ dataOffset += currentFrame.data.byteLength;
+ }
+
+ return data;
+ };
+
+ var audioFrameUtils = {
+ prefixWithSilence: prefixWithSilence,
+ trimAdtsFramesByEarliestDts: trimAdtsFramesByEarliestDts,
+ generateSampleTable: generateSampleTable$1,
+ concatenateFrameData: concatenateFrameData
+ };
+ /**
+ * mux.js
+ *
+ * Copyright (c) Brightcove
+ * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+ */
+
+ var ONE_SECOND_IN_TS$1 = clock.ONE_SECOND_IN_TS;
+ /**
+ * Store information about the start and end of the track and the
+ * duration for each frame/sample we process in order to calculate
+ * the baseMediaDecodeTime
+ */
+
+ var collectDtsInfo = function collectDtsInfo(track, data) {
+ if (typeof data.pts === 'number') {
+ if (track.timelineStartInfo.pts === undefined) {
+ track.timelineStartInfo.pts = data.pts;
+ }
+
+ if (track.minSegmentPts === undefined) {
+ track.minSegmentPts = data.pts;
+ } else {
+ track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);
+ }
+
+ if (track.maxSegmentPts === undefined) {
+ track.maxSegmentPts = data.pts;
+ } else {
+ track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);
+ }
+ }
+
+ if (typeof data.dts === 'number') {
+ if (track.timelineStartInfo.dts === undefined) {
+ track.timelineStartInfo.dts = data.dts;
+ }
+
+ if (track.minSegmentDts === undefined) {
+ track.minSegmentDts = data.dts;
+ } else {
+ track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);
+ }
+
+ if (track.maxSegmentDts === undefined) {
+ track.maxSegmentDts = data.dts;
+ } else {
+ track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);
+ }
+ }
+ };
+ /**
+ * Clear values used to calculate the baseMediaDecodeTime between
+ * tracks
+ */
+
+
+ var clearDtsInfo = function clearDtsInfo(track) {
+ delete track.minSegmentDts;
+ delete track.maxSegmentDts;
+ delete track.minSegmentPts;
+ delete track.maxSegmentPts;
+ };
+ /**
+ * Calculate the track's baseMediaDecodeTime based on the earliest
+ * DTS the transmuxer has ever seen and the minimum DTS for the
+ * current track
+ * @param track {object} track metadata configuration
+ * @param keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+
+
+ var calculateTrackBaseMediaDecodeTime = function calculateTrackBaseMediaDecodeTime(track, keepOriginalTimestamps) {
+ var baseMediaDecodeTime,
+ scale,
+ minSegmentDts = track.minSegmentDts; // Optionally adjust the time so the first segment starts at zero.
+
+ if (!keepOriginalTimestamps) {
+ minSegmentDts -= track.timelineStartInfo.dts;
+ } // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where
+ // we want the start of the first segment to be placed
+
+
+ baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime; // Add to that the distance this segment is from the very first
+
+ baseMediaDecodeTime += minSegmentDts; // baseMediaDecodeTime must not become negative
+
+ baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);
+
+ if (track.type === 'audio') {
+ // Audio has a different clock equal to the sampling_rate so we need to
+ // scale the PTS values into the clock rate of the track
+ scale = track.samplerate / ONE_SECOND_IN_TS$1;
+ baseMediaDecodeTime *= scale;
+ baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);
+ }
+
+ return baseMediaDecodeTime;
+ };
+
+ var trackDecodeInfo = {
+ clearDtsInfo: clearDtsInfo,
+ calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,
+ collectDtsInfo: collectDtsInfo
+ };
+ /**
+ * mux.js
+ *
+ * Copyright (c) Brightcove
+ * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+ *
+ * Reads in-band caption information from a video elementary
+ * stream. Captions must follow the CEA-708 standard for injection
+ * into an MPEG-2 transport streams.
+ * @see https://en.wikipedia.org/wiki/CEA-708
+ * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf
+ */
+ // Supplemental enhancement information (SEI) NAL units have a
+ // payload type field to indicate how they are to be
+ // interpreted. CEAS-708 caption content is always transmitted with
+ // payload type 0x04.
+
+ var USER_DATA_REGISTERED_ITU_T_T35 = 4,
+ RBSP_TRAILING_BITS = 128;
+ /**
+ * Parse a supplemental enhancement information (SEI) NAL unit.
+ * Stops parsing once a message of type ITU T T35 has been found.
+ *
+ * @param bytes {Uint8Array} the bytes of a SEI NAL unit
+ * @return {object} the parsed SEI payload
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ */
+
+ var parseSei = function parseSei(bytes) {
+ var i = 0,
+ result = {
+ payloadType: -1,
+ payloadSize: 0
+ },
+ payloadType = 0,
+ payloadSize = 0; // go through the sei_rbsp parsing each each individual sei_message
+
+ while (i < bytes.byteLength) {
+ // stop once we have hit the end of the sei_rbsp
+ if (bytes[i] === RBSP_TRAILING_BITS) {
+ break;
+ } // Parse payload type
+
+
+ while (bytes[i] === 0xFF) {
+ payloadType += 255;
+ i++;
+ }
+
+ payloadType += bytes[i++]; // Parse payload size
+
+ while (bytes[i] === 0xFF) {
+ payloadSize += 255;
+ i++;
+ }
+
+ payloadSize += bytes[i++]; // this sei_message is a 608/708 caption so save it and break
+ // there can only ever be one caption message in a frame's sei
+
+ if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {
+ result.payloadType = payloadType;
+ result.payloadSize = payloadSize;
+ result.payload = bytes.subarray(i, i + payloadSize);
+ break;
+ } // skip the payload and parse the next message
+
+
+ i += payloadSize;
+ payloadType = 0;
+ payloadSize = 0;
+ }
+
+ return result;
+ }; // see ANSI/SCTE 128-1 (2013), section 8.1
+
+
+ var parseUserData = function parseUserData(sei) {
+ // itu_t_t35_contry_code must be 181 (United States) for
+ // captions
+ if (sei.payload[0] !== 181) {
+ return null;
+ } // itu_t_t35_provider_code should be 49 (ATSC) for captions
+
+
+ if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {
+ return null;
+ } // the user_identifier should be "GA94" to indicate ATSC1 data
+
+
+ if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {
+ return null;
+ } // finally, user_data_type_code should be 0x03 for caption data
+
+
+ if (sei.payload[7] !== 0x03) {
+ return null;
+ } // return the user_data_type_structure and strip the trailing
+ // marker bits
+
+
+ return sei.payload.subarray(8, sei.payload.length - 1);
+ }; // see CEA-708-D, section 4.4
+
+
+ var parseCaptionPackets = function parseCaptionPackets(pts, userData) {
+ var results = [],
+ i,
+ count,
+ offset,
+ data; // if this is just filler, return immediately
+
+ if (!(userData[0] & 0x40)) {
+ return results;
+ } // parse out the cc_data_1 and cc_data_2 fields
+
+
+ count = userData[0] & 0x1f;
+
+ for (i = 0; i < count; i++) {
+ offset = i * 3;
+ data = {
+ type: userData[offset + 2] & 0x03,
+ pts: pts
+ }; // capture cc data when cc_valid is 1
+
+ if (userData[offset + 2] & 0x04) {
+ data.ccData = userData[offset + 3] << 8 | userData[offset + 4];
+ results.push(data);
+ }
+ }
+
+ return results;
+ };
+
+ var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData; // Find all `Emulation Prevention Bytes`
+
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ } // If no Emulation Prevention Bytes were found just return the original
+ // array
+
+
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ } // Create a new array to hold the NAL unit data
+
+
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++; // Remove this position index
+
+ emulationPreventionBytesPositions.shift();
+ }
+
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ }; // exports
+
+
+ var captionPacketParser = {
+ parseSei: parseSei,
+ parseUserData: parseUserData,
+ parseCaptionPackets: parseCaptionPackets,
+ discardEmulationPreventionBytes: discardEmulationPreventionBytes,
+ USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35
+ }; // -----------------
+ // Link To Transport
+ // -----------------
+
+ var CaptionStream = function CaptionStream() {
+ CaptionStream.prototype.init.call(this);
+ this.captionPackets_ = [];
+ this.ccStreams_ = [new Cea608Stream(0, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(0, 1), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define
+ ];
+ this.reset(); // forward data and done events from CCs to this CaptionStream
+
+ this.ccStreams_.forEach(function (cc) {
+ cc.on('data', this.trigger.bind(this, 'data'));
+ cc.on('partialdone', this.trigger.bind(this, 'partialdone'));
+ cc.on('done', this.trigger.bind(this, 'done'));
+ }, this);
+ };
+
+ CaptionStream.prototype = new stream();
+
+ CaptionStream.prototype.push = function (event) {
+ var sei, userData, newCaptionPackets; // only examine SEI NALs
+
+ if (event.nalUnitType !== 'sei_rbsp') {
+ return;
+ } // parse the sei
+
+
+ sei = captionPacketParser.parseSei(event.escapedRBSP); // ignore everything but user_data_registered_itu_t_t35
+
+ if (sei.payloadType !== captionPacketParser.USER_DATA_REGISTERED_ITU_T_T35) {
+ return;
+ } // parse out the user data payload
+
+
+ userData = captionPacketParser.parseUserData(sei); // ignore unrecognized userData
+
+ if (!userData) {
+ return;
+ } // Sometimes, the same segment # will be downloaded twice. To stop the
+ // caption data from being processed twice, we track the latest dts we've
+ // received and ignore everything with a dts before that. However, since
+ // data for a specific dts can be split across packets on either side of
+ // a segment boundary, we need to make sure we *don't* ignore the packets
+ // from the *next* segment that have dts === this.latestDts_. By constantly
+ // tracking the number of packets received with dts === this.latestDts_, we
+ // know how many should be ignored once we start receiving duplicates.
+
+
+ if (event.dts < this.latestDts_) {
+ // We've started getting older data, so set the flag.
+ this.ignoreNextEqualDts_ = true;
+ return;
+ } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {
+ this.numSameDts_--;
+
+ if (!this.numSameDts_) {
+ // We've received the last duplicate packet, time to start processing again
+ this.ignoreNextEqualDts_ = false;
+ }
+
+ return;
+ } // parse out CC data packets and save them for later
+
+
+ newCaptionPackets = captionPacketParser.parseCaptionPackets(event.pts, userData);
+ this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);
+
+ if (this.latestDts_ !== event.dts) {
+ this.numSameDts_ = 0;
+ }
+
+ this.numSameDts_++;
+ this.latestDts_ = event.dts;
+ };
+
+ CaptionStream.prototype.flushCCStreams = function (flushType) {
+ this.ccStreams_.forEach(function (cc) {
+ return flushType === 'flush' ? cc.flush() : cc.partialFlush();
+ }, this);
+ };
+
+ CaptionStream.prototype.flushStream = function (flushType) {
+ // make sure we actually parsed captions before proceeding
+ if (!this.captionPackets_.length) {
+ this.flushCCStreams(flushType);
+ return;
+ } // In Chrome, the Array#sort function is not stable so add a
+ // presortIndex that we can use to ensure we get a stable-sort
+
+
+ this.captionPackets_.forEach(function (elem, idx) {
+ elem.presortIndex = idx;
+ }); // sort caption byte-pairs based on their PTS values
+
+ this.captionPackets_.sort(function (a, b) {
+ if (a.pts === b.pts) {
+ return a.presortIndex - b.presortIndex;
+ }
+
+ return a.pts - b.pts;
+ });
+ this.captionPackets_.forEach(function (packet) {
+ if (packet.type < 2) {
+ // Dispatch packet to the right Cea608Stream
+ this.dispatchCea608Packet(packet);
+ } // this is where an 'else' would go for a dispatching packets
+ // to a theoretical Cea708Stream that handles SERVICEn data
+
+ }, this);
+ this.captionPackets_.length = 0;
+ this.flushCCStreams(flushType);
+ };
+
+ CaptionStream.prototype.flush = function () {
+ return this.flushStream('flush');
+ }; // Only called if handling partial data
+
+
+ CaptionStream.prototype.partialFlush = function () {
+ return this.flushStream('partialFlush');
+ };
+
+ CaptionStream.prototype.reset = function () {
+ this.latestDts_ = null;
+ this.ignoreNextEqualDts_ = false;
+ this.numSameDts_ = 0;
+ this.activeCea608Channel_ = [null, null];
+ this.ccStreams_.forEach(function (ccStream) {
+ ccStream.reset();
+ });
+ }; // From the CEA-608 spec:
+
+ /*
+ * When XDS sub-packets are interleaved with other services, the end of each sub-packet shall be followed
+ * by a control pair to change to a different service. When any of the control codes from 0x10 to 0x1F is
+ * used to begin a control code pair, it indicates the return to captioning or Text data. The control code pair
+ * and subsequent data should then be processed according to the FCC rules. It may be necessary for the
+ * line 21 data encoder to automatically insert a control code pair (i.e. RCL, RU2, RU3, RU4, RDC, or RTD)
+ * to switch to captioning or Text.
+ */
+ // With that in mind, we ignore any data between an XDS control code and a
+ // subsequent closed-captioning control code.
+
+
+ CaptionStream.prototype.dispatchCea608Packet = function (packet) {
+ // NOTE: packet.type is the CEA608 field
+ if (this.setsTextOrXDSActive(packet)) {
+ this.activeCea608Channel_[packet.type] = null;
+ } else if (this.setsChannel1Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 0;
+ } else if (this.setsChannel2Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 1;
+ }
+
+ if (this.activeCea608Channel_[packet.type] === null) {
+ // If we haven't received anything to set the active channel, or the
+ // packets are Text/XDS data, discard the data; we don't want jumbled
+ // captions
+ return;
+ }
+
+ this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);
+ };
+
+ CaptionStream.prototype.setsChannel1Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1000;
+ };
+
+ CaptionStream.prototype.setsChannel2Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1800;
+ };
+
+ CaptionStream.prototype.setsTextOrXDSActive = function (packet) {
+ return (packet.ccData & 0x7100) === 0x0100 || (packet.ccData & 0x78fe) === 0x102a || (packet.ccData & 0x78fe) === 0x182a;
+ }; // ----------------------
+ // Session to Application
+ // ----------------------
+ // This hash maps non-ASCII, special, and extended character codes to their
+ // proper Unicode equivalent. The first keys that are only a single byte
+ // are the non-standard ASCII characters, which simply map the CEA608 byte
+ // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608
+ // character codes, but have their MSB bitmasked with 0x03 so that a lookup
+ // can be performed regardless of the field and data channel on which the
+ // character code was received.
+
+
+ var CHARACTER_TRANSLATION = {
+ 0x2a: 0xe1,
+ // á
+ 0x5c: 0xe9,
+ // é
+ 0x5e: 0xed,
+ // í
+ 0x5f: 0xf3,
+ // ó
+ 0x60: 0xfa,
+ // ú
+ 0x7b: 0xe7,
+ // ç
+ 0x7c: 0xf7,
+ // ÷
+ 0x7d: 0xd1,
+ // Ñ
+ 0x7e: 0xf1,
+ // ñ
+ 0x7f: 0x2588,
+ // █
+ 0x0130: 0xae,
+ // ®
+ 0x0131: 0xb0,
+ // °
+ 0x0132: 0xbd,
+ // ½
+ 0x0133: 0xbf,
+ // ¿
+ 0x0134: 0x2122,
+ // ™
+ 0x0135: 0xa2,
+ // ¢
+ 0x0136: 0xa3,
+ // £
+ 0x0137: 0x266a,
+ // ♪
+ 0x0138: 0xe0,
+ // à
+ 0x0139: 0xa0,
+ //
+ 0x013a: 0xe8,
+ // è
+ 0x013b: 0xe2,
+ // â
+ 0x013c: 0xea,
+ // ê
+ 0x013d: 0xee,
+ // î
+ 0x013e: 0xf4,
+ // ô
+ 0x013f: 0xfb,
+ // û
+ 0x0220: 0xc1,
+ // Á
+ 0x0221: 0xc9,
+ // É
+ 0x0222: 0xd3,
+ // Ó
+ 0x0223: 0xda,
+ // Ú
+ 0x0224: 0xdc,
+ // Ü
+ 0x0225: 0xfc,
+ // ü
+ 0x0226: 0x2018,
+ // ‘
+ 0x0227: 0xa1,
+ // ¡
+ 0x0228: 0x2a,
+ // *
+ 0x0229: 0x27,
+ // '
+ 0x022a: 0x2014,
+ // —
+ 0x022b: 0xa9,
+ // ©
+ 0x022c: 0x2120,
+ // ℠
+ 0x022d: 0x2022,
+ // •
+ 0x022e: 0x201c,
+ // “
+ 0x022f: 0x201d,
+ // ”
+ 0x0230: 0xc0,
+ // À
+ 0x0231: 0xc2,
+ // Â
+ 0x0232: 0xc7,
+ // Ç
+ 0x0233: 0xc8,
+ // È
+ 0x0234: 0xca,
+ // Ê
+ 0x0235: 0xcb,
+ // Ë
+ 0x0236: 0xeb,
+ // ë
+ 0x0237: 0xce,
+ // Î
+ 0x0238: 0xcf,
+ // Ï
+ 0x0239: 0xef,
+ // ï
+ 0x023a: 0xd4,
+ // Ô
+ 0x023b: 0xd9,
+ // Ù
+ 0x023c: 0xf9,
+ // ù
+ 0x023d: 0xdb,
+ // Û
+ 0x023e: 0xab,
+ // «
+ 0x023f: 0xbb,
+ // »
+ 0x0320: 0xc3,
+ // Ã
+ 0x0321: 0xe3,
+ // ã
+ 0x0322: 0xcd,
+ // Í
+ 0x0323: 0xcc,
+ // Ì
+ 0x0324: 0xec,
+ // ì
+ 0x0325: 0xd2,
+ // Ò
+ 0x0326: 0xf2,
+ // ò
+ 0x0327: 0xd5,
+ // Õ
+ 0x0328: 0xf5,
+ // õ
+ 0x0329: 0x7b,
+ // {
+ 0x032a: 0x7d,
+ // }
+ 0x032b: 0x5c,
+ // \
+ 0x032c: 0x5e,
+ // ^
+ 0x032d: 0x5f,
+ // _
+ 0x032e: 0x7c,
+ // |
+ 0x032f: 0x7e,
+ // ~
+ 0x0330: 0xc4,
+ // Ä
+ 0x0331: 0xe4,
+ // ä
+ 0x0332: 0xd6,
+ // Ö
+ 0x0333: 0xf6,
+ // ö
+ 0x0334: 0xdf,
+ // ß
+ 0x0335: 0xa5,
+ // ¥
+ 0x0336: 0xa4,
+ // ¤
+ 0x0337: 0x2502,
+ // │
+ 0x0338: 0xc5,
+ // Å
+ 0x0339: 0xe5,
+ // å
+ 0x033a: 0xd8,
+ // Ø
+ 0x033b: 0xf8,
+ // ø
+ 0x033c: 0x250c,
+ // ┌
+ 0x033d: 0x2510,
+ // ┐
+ 0x033e: 0x2514,
+ // └
+ 0x033f: 0x2518 // ┘
+
+ };
+
+ var getCharFromCode = function getCharFromCode(code) {
+ if (code === null) {
+ return '';
+ }
+
+ code = CHARACTER_TRANSLATION[code] || code;
+ return String.fromCharCode(code);
+ }; // the index of the last row in a CEA-608 display buffer
+
+
+ var BOTTOM_ROW = 14; // This array is used for mapping PACs -> row #, since there's no way of
+ // getting it through bit logic.
+
+ var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420]; // CEA-608 captions are rendered onto a 34x15 matrix of character
+ // cells. The "bottom" row is the last element in the outer array.
+
+ var createDisplayBuffer = function createDisplayBuffer() {
+ var result = [],
+ i = BOTTOM_ROW + 1;
+
+ while (i--) {
+ result.push('');
+ }
+
+ return result;
+ };
+
+ var Cea608Stream = function Cea608Stream(field, dataChannel) {
+ Cea608Stream.prototype.init.call(this);
+ this.field_ = field || 0;
+ this.dataChannel_ = dataChannel || 0;
+ this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);
+ this.setConstants();
+ this.reset();
+
+ this.push = function (packet) {
+ var data, swap, char0, char1, text; // remove the parity bits
+
+ data = packet.ccData & 0x7f7f; // ignore duplicate control codes; the spec demands they're sent twice
+
+ if (data === this.lastControlCode_) {
+ this.lastControlCode_ = null;
+ return;
+ } // Store control codes
+
+
+ if ((data & 0xf000) === 0x1000) {
+ this.lastControlCode_ = data;
+ } else if (data !== this.PADDING_) {
+ this.lastControlCode_ = null;
+ }
+
+ char0 = data >>> 8;
+ char1 = data & 0xff;
+
+ if (data === this.PADDING_) {
+ return;
+ } else if (data === this.RESUME_CAPTION_LOADING_) {
+ this.mode_ = 'popOn';
+ } else if (data === this.END_OF_CAPTION_) {
+ // If an EOC is received while in paint-on mode, the displayed caption
+ // text should be swapped to non-displayed memory as if it was a pop-on
+ // caption. Because of that, we should explicitly switch back to pop-on
+ // mode
+ this.mode_ = 'popOn';
+ this.clearFormatting(packet.pts); // if a caption was being displayed, it's gone now
+
+ this.flushDisplayed(packet.pts); // flip memory
+
+ swap = this.displayed_;
+ this.displayed_ = this.nonDisplayed_;
+ this.nonDisplayed_ = swap; // start measuring the time to display the caption
+
+ this.startPts_ = packet.pts;
+ } else if (data === this.ROLL_UP_2_ROWS_) {
+ this.rollUpRows_ = 2;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_3_ROWS_) {
+ this.rollUpRows_ = 3;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_4_ROWS_) {
+ this.rollUpRows_ = 4;
+ this.setRollUp(packet.pts);
+ } else if (data === this.CARRIAGE_RETURN_) {
+ this.clearFormatting(packet.pts);
+ this.flushDisplayed(packet.pts);
+ this.shiftRowsUp_();
+ this.startPts_ = packet.pts;
+ } else if (data === this.BACKSPACE_) {
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+ } else if (data === this.ERASE_DISPLAYED_MEMORY_) {
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {
+ this.nonDisplayed_ = createDisplayBuffer();
+ } else if (data === this.RESUME_DIRECT_CAPTIONING_) {
+ if (this.mode_ !== 'paintOn') {
+ // NOTE: This should be removed when proper caption positioning is
+ // implemented
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ }
+
+ this.mode_ = 'paintOn';
+ this.startPts_ = packet.pts; // Append special characters to caption text
+ } else if (this.isSpecialCharacter(char0, char1)) {
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++; // Append extended characters to caption text
+ } else if (this.isExtCharacter(char0, char1)) {
+ // Extended characters always follow their "non-extended" equivalents.
+ // IE if a "è" is desired, you'll always receive "eè"; non-compliant
+ // decoders are supposed to drop the "è", while compliant decoders
+ // backspace the "e" and insert "è".
+ // Delete the previous character
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ } // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+
+
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++; // Process mid-row codes
+ } else if (this.isMidRowCode(char0, char1)) {
+ // Attributes are not additive, so clear all formatting
+ this.clearFormatting(packet.pts); // According to the standard, mid-row codes
+ // should be replaced with spaces, so add one now
+
+ this[this.mode_](packet.pts, ' ');
+ this.column_++;
+
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+
+ if ((char1 & 0x1) === 0x1) {
+ this.addFormatting(packet.pts, ['u']);
+ } // Detect offset control codes and adjust cursor
+
+ } else if (this.isOffsetControlCode(char0, char1)) {
+ // Cursor position is set by indent PAC (see below) in 4-column
+ // increments, with an additional offset code of 1-3 to reach any
+ // of the 32 columns specified by CEA-608. So all we need to do
+ // here is increment the column cursor by the given offset.
+ this.column_ += char1 & 0x03; // Detect PACs (Preamble Address Codes)
+ } else if (this.isPAC(char0, char1)) {
+ // There's no logic for PAC -> row mapping, so we have to just
+ // find the row code in an array and use its index :(
+ var row = ROWS.indexOf(data & 0x1f20); // Configure the caption window if we're in roll-up mode
+
+ if (this.mode_ === 'rollUp') {
+ // This implies that the base row is incorrectly set.
+ // As per the recommendation in CEA-608(Base Row Implementation), defer to the number
+ // of roll-up rows set.
+ if (row - this.rollUpRows_ + 1 < 0) {
+ row = this.rollUpRows_ - 1;
+ }
+
+ this.setRollUp(packet.pts, row);
+ }
+
+ if (row !== this.row_) {
+ // formatting is only persistent for current row
+ this.clearFormatting(packet.pts);
+ this.row_ = row;
+ } // All PACs can apply underline, so detect and apply
+ // (All odd-numbered second bytes set underline)
+
+
+ if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ if ((data & 0x10) === 0x10) {
+ // We've got an indent level code. Each successive even number
+ // increments the column cursor by 4, so we can get the desired
+ // column position by bit-shifting to the right (to get n/2)
+ // and multiplying by 4.
+ this.column_ = ((data & 0xe) >> 1) * 4;
+ }
+
+ if (this.isColorPAC(char1)) {
+ // it's a color code, though we only support white, which
+ // can be either normal or italicized. white italics can be
+ // either 0x4e or 0x6e depending on the row, so we just
+ // bitwise-and with 0xe to see if italics should be turned on
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+ } // We have a normal character in char0, and possibly one in char1
+
+ } else if (this.isNormalChar(char0)) {
+ if (char1 === 0x00) {
+ char1 = null;
+ }
+
+ text = getCharFromCode(char0);
+ text += getCharFromCode(char1);
+ this[this.mode_](packet.pts, text);
+ this.column_ += text.length;
+ } // finish data processing
+
+ };
+ };
+
+ Cea608Stream.prototype = new stream(); // Trigger a cue point that captures the current state of the
+ // display buffer
+
+ Cea608Stream.prototype.flushDisplayed = function (pts) {
+ var content = this.displayed_ // remove spaces from the start and end of the string
+ .map(function (row) {
+ try {
+ return row.trim();
+ } catch (e) {
+ // Ordinarily, this shouldn't happen. However, caption
+ // parsing errors should not throw exceptions and
+ // break playback.
+ // eslint-disable-next-line no-console
+ console.error('Skipping malformed caption.');
+ return '';
+ }
+ }) // combine all text rows to display in one cue
+ .join('\n') // and remove blank rows from the start and end, but not the middle
+ .replace(/^\n+|\n+$/g, '');
+
+ if (content.length) {
+ this.trigger('data', {
+ startPts: this.startPts_,
+ endPts: pts,
+ text: content,
+ stream: this.name_
+ });
+ }
+ };
+ /**
+ * Zero out the data, used for startup and on seek
+ */
+
+
+ Cea608Stream.prototype.reset = function () {
+ this.mode_ = 'popOn'; // When in roll-up mode, the index of the last row that will
+ // actually display captions. If a caption is shifted to a row
+ // with a lower index than this, it is cleared from the display
+ // buffer
+
+ this.topRow_ = 0;
+ this.startPts_ = 0;
+ this.displayed_ = createDisplayBuffer();
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.lastControlCode_ = null; // Track row and column for proper line-breaking and spacing
+
+ this.column_ = 0;
+ this.row_ = BOTTOM_ROW;
+ this.rollUpRows_ = 2; // This variable holds currently-applied formatting
+
+ this.formatting_ = [];
+ };
+ /**
+ * Sets up control code and related constants for this instance
+ */
+
+
+ Cea608Stream.prototype.setConstants = function () {
+ // The following attributes have these uses:
+ // ext_ : char0 for mid-row codes, and the base for extended
+ // chars (ext_+0, ext_+1, and ext_+2 are char0s for
+ // extended codes)
+ // control_: char0 for control codes, except byte-shifted to the
+ // left so that we can do this.control_ | CONTROL_CODE
+ // offset_: char0 for tab offset codes
+ //
+ // It's also worth noting that control codes, and _only_ control codes,
+ // differ between field 1 and field2. Field 2 control codes are always
+ // their field 1 value plus 1. That's why there's the "| field" on the
+ // control value.
+ if (this.dataChannel_ === 0) {
+ this.BASE_ = 0x10;
+ this.EXT_ = 0x11;
+ this.CONTROL_ = (0x14 | this.field_) << 8;
+ this.OFFSET_ = 0x17;
+ } else if (this.dataChannel_ === 1) {
+ this.BASE_ = 0x18;
+ this.EXT_ = 0x19;
+ this.CONTROL_ = (0x1c | this.field_) << 8;
+ this.OFFSET_ = 0x1f;
+ } // Constants for the LSByte command codes recognized by Cea608Stream. This
+ // list is not exhaustive. For a more comprehensive listing and semantics see
+ // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf
+ // Padding
+
+
+ this.PADDING_ = 0x0000; // Pop-on Mode
+
+ this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;
+ this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f; // Roll-up Mode
+
+ this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;
+ this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;
+ this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;
+ this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d; // paint-on mode
+
+ this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29; // Erasure
+
+ this.BACKSPACE_ = this.CONTROL_ | 0x21;
+ this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;
+ this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;
+ };
+ /**
+ * Detects if the 2-byte packet data is a special character
+ *
+ * Special characters have a second byte in the range 0x30 to 0x3f,
+ * with the first byte being 0x11 (for data channel 1) or 0x19 (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an special character
+ */
+
+
+ Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;
+ };
+ /**
+ * Detects if the 2-byte packet data is an extended character
+ *
+ * Extended characters have a second byte in the range 0x20 to 0x3f,
+ * with the first byte being 0x12 or 0x13 (for data channel 1) or
+ * 0x1a or 0x1b (for data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an extended character
+ */
+
+
+ Cea608Stream.prototype.isExtCharacter = function (char0, char1) {
+ return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;
+ };
+ /**
+ * Detects if the 2-byte packet is a mid-row code
+ *
+ * Mid-row codes have a second byte in the range 0x20 to 0x2f, with
+ * the first byte being 0x11 (for data channel 1) or 0x19 (for data
+ * channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a mid-row code
+ */
+
+
+ Cea608Stream.prototype.isMidRowCode = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;
+ };
+ /**
+ * Detects if the 2-byte packet is an offset control code
+ *
+ * Offset control codes have a second byte in the range 0x21 to 0x23,
+ * with the first byte being 0x17 (for data channel 1) or 0x1f (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an offset control code
+ */
+
+
+ Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {
+ return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;
+ };
+ /**
+ * Detects if the 2-byte packet is a Preamble Address Code
+ *
+ * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)
+ * or 0x18 to 0x1f (for data channel 2), with the second byte in the
+ * range 0x40 to 0x7f.
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a PAC
+ */
+
+
+ Cea608Stream.prototype.isPAC = function (char0, char1) {
+ return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;
+ };
+ /**
+ * Detects if a packet's second byte is in the range of a PAC color code
+ *
+ * PAC color codes have the second byte be in the range 0x40 to 0x4f, or
+ * 0x60 to 0x6f.
+ *
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the byte is a color PAC
+ */
+
+
+ Cea608Stream.prototype.isColorPAC = function (char1) {
+ return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;
+ };
+ /**
+ * Detects if a single byte is in the range of a normal character
+ *
+ * Normal text bytes are in the range 0x20 to 0x7f.
+ *
+ * @param {Integer} char The byte
+ * @return {Boolean} Whether the byte is a normal character
+ */
+
+
+ Cea608Stream.prototype.isNormalChar = function (_char) {
+ return _char >= 0x20 && _char <= 0x7f;
+ };
+ /**
+ * Configures roll-up
+ *
+ * @param {Integer} pts Current PTS
+ * @param {Integer} newBaseRow Used by PACs to slide the current window to
+ * a new position
+ */
+
+
+ Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {
+ // Reset the base row to the bottom row when switching modes
+ if (this.mode_ !== 'rollUp') {
+ this.row_ = BOTTOM_ROW;
+ this.mode_ = 'rollUp'; // Spec says to wipe memories when switching to roll-up
+
+ this.flushDisplayed(pts);
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.displayed_ = createDisplayBuffer();
+ }
+
+ if (newBaseRow !== undefined && newBaseRow !== this.row_) {
+ // move currently displayed captions (up or down) to the new base row
+ for (var i = 0; i < this.rollUpRows_; i++) {
+ this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];
+ this.displayed_[this.row_ - i] = '';
+ }
+ }
+
+ if (newBaseRow === undefined) {
+ newBaseRow = this.row_;
+ }
+
+ this.topRow_ = newBaseRow - this.rollUpRows_ + 1;
+ }; // Adds the opening HTML tag for the passed character to the caption text,
+ // and keeps track of it for later closing
+
+
+ Cea608Stream.prototype.addFormatting = function (pts, format) {
+ this.formatting_ = this.formatting_.concat(format);
+ var text = format.reduce(function (text, format) {
+ return text + '<' + format + '>';
+ }, '');
+ this[this.mode_](pts, text);
+ }; // Adds HTML closing tags for current formatting to caption text and
+ // clears remembered formatting
+
+
+ Cea608Stream.prototype.clearFormatting = function (pts) {
+ if (!this.formatting_.length) {
+ return;
+ }
+
+ var text = this.formatting_.reverse().reduce(function (text, format) {
+ return text + '</' + format + '>';
+ }, '');
+ this.formatting_ = [];
+ this[this.mode_](pts, text);
+ }; // Mode Implementations
+
+
+ Cea608Stream.prototype.popOn = function (pts, text) {
+ var baseRow = this.nonDisplayed_[this.row_]; // buffer characters
+
+ baseRow += text;
+ this.nonDisplayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.rollUp = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.shiftRowsUp_ = function () {
+ var i; // clear out inactive rows
+
+ for (i = 0; i < this.topRow_; i++) {
+ this.displayed_[i] = '';
+ }
+
+ for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {
+ this.displayed_[i] = '';
+ } // shift displayed rows up
+
+
+ for (i = this.topRow_; i < this.row_; i++) {
+ this.displayed_[i] = this.displayed_[i + 1];
+ } // clear out the bottom row
+
+
+ this.displayed_[this.row_] = '';
+ };
+
+ Cea608Stream.prototype.paintOn = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ }; // exports
+
+
+ var captionStream = {
+ CaptionStream: CaptionStream,
+ Cea608Stream: Cea608Stream
+ };
+ /**
+ * mux.js
+ *
+ * Copyright (c) Brightcove
+ * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+ */
+
+ var streamTypes = {
+ H264_STREAM_TYPE: 0x1B,
+ ADTS_STREAM_TYPE: 0x0F,
+ METADATA_STREAM_TYPE: 0x15
+ };
+ var MAX_TS = 8589934592;
+ var RO_THRESH = 4294967296;
+ var TYPE_SHARED = 'shared';
+
+ var handleRollover = function handleRollover(value, reference) {
+ var direction = 1;
+
+ if (value > reference) {
+ // If the current timestamp value is greater than our reference timestamp and we detect a
+ // timestamp rollover, this means the roll over is happening in the opposite direction.
+ // Example scenario: Enter a long stream/video just after a rollover occurred. The reference
+ // point will be set to a small number, e.g. 1. The user then seeks backwards over the
+ // rollover point. In loading this segment, the timestamp values will be very large,
+ // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust
+ // the time stamp to be `value - 2^33`.
+ direction = -1;
+ } // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will
+ // cause an incorrect adjustment.
+
+
+ while (Math.abs(reference - value) > RO_THRESH) {
+ value += direction * MAX_TS;
+ }
+
+ return value;
+ };
+
+ var TimestampRolloverStream = function TimestampRolloverStream(type) {
+ var lastDTS, referenceDTS;
+ TimestampRolloverStream.prototype.init.call(this); // The "shared" type is used in cases where a stream will contain muxed
+ // video and audio. We could use `undefined` here, but having a string
+ // makes debugging a little clearer.
+
+ this.type_ = type || TYPE_SHARED;
+
+ this.push = function (data) {
+ // Any "shared" rollover streams will accept _all_ data. Otherwise,
+ // streams will only accept data that matches their type.
+ if (this.type_ !== TYPE_SHARED && data.type !== this.type_) {
+ return;
+ }
+
+ if (referenceDTS === undefined) {
+ referenceDTS = data.dts;
+ }
+
+ data.dts = handleRollover(data.dts, referenceDTS);
+ data.pts = handleRollover(data.pts, referenceDTS);
+ lastDTS = data.dts;
+ this.trigger('data', data);
+ };
+
+ this.flush = function () {
+ referenceDTS = lastDTS;
+ this.trigger('done');
+ };
+
+ this.endTimeline = function () {
+ this.flush();
+ this.trigger('endedtimeline');
+ };
+
+ this.discontinuity = function () {
+ referenceDTS = void 0;
+ lastDTS = void 0;
+ };
+
+ this.reset = function () {
+ this.discontinuity();
+ this.trigger('reset');
+ };
+ };
+
+ TimestampRolloverStream.prototype = new stream();
+ var timestampRolloverStream = {
+ TimestampRolloverStream: TimestampRolloverStream,
+ handleRollover: handleRollover
+ };
+
+ var percentEncode = function percentEncode(bytes, start, end) {
+ var i,
+ result = '';
+
+ for (i = start; i < end; i++) {
+ result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
+ }
+
+ return result;
+ },
+ // return the string representation of the specified byte range,
+ // interpreted as UTf-8.
+ parseUtf8 = function parseUtf8(bytes, start, end) {
+ return decodeURIComponent(percentEncode(bytes, start, end));
+ },
+ // return the string representation of the specified byte range,
+ // interpreted as ISO-8859-1.
+ parseIso88591 = function parseIso88591(bytes, start, end) {
+ return unescape(percentEncode(bytes, start, end)); // jshint ignore:line
+ },
+ parseSyncSafeInteger = function parseSyncSafeInteger(data) {
+ return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
+ },
+ tagParsers = {
+ TXXX: function TXXX(tag) {
+ var i;
+
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the text fields
+ tag.description = parseUtf8(tag.data, 1, i); // do not include the null terminator in the tag value
+
+ tag.value = parseUtf8(tag.data, i + 1, tag.data.length).replace(/\0*$/, '');
+ break;
+ }
+ }
+
+ tag.data = tag.value;
+ },
+ WXXX: function WXXX(tag) {
+ var i;
+
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ tag.url = parseUtf8(tag.data, i + 1, tag.data.length);
+ break;
+ }
+ }
+ },
+ PRIV: function PRIV(tag) {
+ var i;
+
+ for (i = 0; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.owner = parseIso88591(tag.data, 0, i);
+ break;
+ }
+ }
+
+ tag.privateData = tag.data.subarray(i + 1);
+ tag.data = tag.privateData;
+ }
+ },
+ _MetadataStream;
+
+ _MetadataStream = function MetadataStream(options) {
+ var settings = {
+ debug: !!(options && options.debug),
+ // the bytes of the program-level descriptor field in MP2T
+ // see ISO/IEC 13818-1:2013 (E), section 2.6 "Program and
+ // program element descriptors"
+ descriptor: options && options.descriptor
+ },
+ // the total size in bytes of the ID3 tag being parsed
+ tagSize = 0,
+ // tag data that is not complete enough to be parsed
+ buffer = [],
+ // the total number of bytes currently in the buffer
+ bufferSize = 0,
+ i;
+
+ _MetadataStream.prototype.init.call(this); // calculate the text track in-band metadata track dispatch type
+ // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track
+
+
+ this.dispatchType = streamTypes.METADATA_STREAM_TYPE.toString(16);
+
+ if (settings.descriptor) {
+ for (i = 0; i < settings.descriptor.length; i++) {
+ this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);
+ }
+ }
+
+ this.push = function (chunk) {
+ var tag, frameStart, frameSize, frame, i, frameHeader;
+
+ if (chunk.type !== 'timed-metadata') {
+ return;
+ } // if data_alignment_indicator is set in the PES header,
+ // we must have the start of a new ID3 tag. Assume anything
+ // remaining in the buffer was malformed and throw it out
+
+
+ if (chunk.dataAlignmentIndicator) {
+ bufferSize = 0;
+ buffer.length = 0;
+ } // ignore events that don't look like ID3 data
+
+
+ if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {
+ if (settings.debug) {
+ // eslint-disable-next-line no-console
+ console.log('Skipping unrecognized metadata packet');
+ }
+
+ return;
+ } // add this chunk to the data we've collected so far
+
+
+ buffer.push(chunk);
+ bufferSize += chunk.data.byteLength; // grab the size of the entire frame from the ID3 header
+
+ if (buffer.length === 1) {
+ // the frame size is transmitted as a 28-bit integer in the
+ // last four bytes of the ID3 header.
+ // The most significant bit of each byte is dropped and the
+ // results concatenated to recover the actual value.
+ tagSize = parseSyncSafeInteger(chunk.data.subarray(6, 10)); // ID3 reports the tag size excluding the header but it's more
+ // convenient for our comparisons to include it
+
+ tagSize += 10;
+ } // if the entire frame has not arrived, wait for more data
+
+
+ if (bufferSize < tagSize) {
+ return;
+ } // collect the entire frame so it can be parsed
+
+
+ tag = {
+ data: new Uint8Array(tagSize),
+ frames: [],
+ pts: buffer[0].pts,
+ dts: buffer[0].dts
+ };
+
+ for (i = 0; i < tagSize;) {
+ tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);
+ i += buffer[0].data.byteLength;
+ bufferSize -= buffer[0].data.byteLength;
+ buffer.shift();
+ } // find the start of the first frame and the end of the tag
+
+
+ frameStart = 10;
+
+ if (tag.data[5] & 0x40) {
+ // advance the frame start past the extended header
+ frameStart += 4; // header size field
+
+ frameStart += parseSyncSafeInteger(tag.data.subarray(10, 14)); // clip any padding off the end
+
+ tagSize -= parseSyncSafeInteger(tag.data.subarray(16, 20));
+ } // parse one or more ID3 frames
+ // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+
+
+ do {
+ // determine the number of bytes in this frame
+ frameSize = parseSyncSafeInteger(tag.data.subarray(frameStart + 4, frameStart + 8));
+
+ if (frameSize < 1) {
+ // eslint-disable-next-line no-console
+ return console.log('Malformed ID3 frame encountered. Skipping metadata parsing.');
+ }
+
+ frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);
+ frame = {
+ id: frameHeader,
+ data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)
+ };
+ frame.key = frame.id;
+
+ if (tagParsers[frame.id]) {
+ tagParsers[frame.id](frame); // handle the special PRIV frame used to indicate the start
+ // time for raw AAC data
+
+ if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {
+ var d = frame.data,
+ size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
+ size *= 4;
+ size += d[7] & 0x03;
+ frame.timeStamp = size; // in raw AAC, all subsequent data will be timestamped based
+ // on the value of this frame
+ // we couldn't have known the appropriate pts and dts before
+ // parsing this ID3 tag so set those values now
+
+ if (tag.pts === undefined && tag.dts === undefined) {
+ tag.pts = frame.timeStamp;
+ tag.dts = frame.timeStamp;
+ }
+
+ this.trigger('timestamp', frame);
+ }
+ }
+
+ tag.frames.push(frame);
+ frameStart += 10; // advance past the frame header
+
+ frameStart += frameSize; // advance past the frame body
+ } while (frameStart < tagSize);
+
+ this.trigger('data', tag);
+ };
+ };
+
+ _MetadataStream.prototype = new stream();
+ var metadataStream = _MetadataStream;
+ var TimestampRolloverStream$1 = timestampRolloverStream.TimestampRolloverStream; // object types
+
+ var _TransportPacketStream, _TransportParseStream, _ElementaryStream; // constants
+
+
+ var MP2T_PACKET_LENGTH = 188,
+ // bytes
+ SYNC_BYTE = 0x47;
+ /**
+ * Splits an incoming stream of binary data into MPEG-2 Transport
+ * Stream packets.
+ */
+
+ _TransportPacketStream = function TransportPacketStream() {
+ var buffer = new Uint8Array(MP2T_PACKET_LENGTH),
+ bytesInBuffer = 0;
+
+ _TransportPacketStream.prototype.init.call(this); // Deliver new bytes to the stream.
+
+ /**
+ * Split a stream of data into M2TS packets
+ **/
+
+
+ this.push = function (bytes) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH,
+ everything; // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+
+ if (bytesInBuffer) {
+ everything = new Uint8Array(bytes.byteLength + bytesInBuffer);
+ everything.set(buffer.subarray(0, bytesInBuffer));
+ everything.set(bytes, bytesInBuffer);
+ bytesInBuffer = 0;
+ } else {
+ everything = bytes;
+ } // While we have enough data for a packet
+
+
+ while (endIndex < everything.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (everything[startIndex] === SYNC_BYTE && everything[endIndex] === SYNC_BYTE) {
+ // We found a packet so emit it and jump one whole packet forward in
+ // the stream
+ this.trigger('data', everything.subarray(startIndex, endIndex));
+ startIndex += MP2T_PACKET_LENGTH;
+ endIndex += MP2T_PACKET_LENGTH;
+ continue;
+ } // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+
+
+ startIndex++;
+ endIndex++;
+ } // If there was some data left over at the end of the segment that couldn't
+ // possibly be a whole packet, keep it because it might be the start of a packet
+ // that continues in the next segment
+
+
+ if (startIndex < everything.byteLength) {
+ buffer.set(everything.subarray(startIndex), 0);
+ bytesInBuffer = everything.byteLength - startIndex;
+ }
+ };
+ /**
+ * Passes identified M2TS packets to the TransportParseStream to be parsed
+ **/
+
+
+ this.flush = function () {
+ // If the buffer contains a whole packet when we are being flushed, emit it
+ // and empty the buffer. Otherwise hold onto the data because it may be
+ // important for decoding the next segment
+ if (bytesInBuffer === MP2T_PACKET_LENGTH && buffer[0] === SYNC_BYTE) {
+ this.trigger('data', buffer);
+ bytesInBuffer = 0;
+ }
+
+ this.trigger('done');
+ };
+
+ this.endTimeline = function () {
+ this.flush();
+ this.trigger('endedtimeline');
+ };
+
+ this.reset = function () {
+ bytesInBuffer = 0;
+ this.trigger('reset');
+ };
+ };
+
+ _TransportPacketStream.prototype = new stream();
+ /**
+ * Accepts an MP2T TransportPacketStream and emits data events with parsed
+ * forms of the individual transport stream packets.
+ */
+
+ _TransportParseStream = function TransportParseStream() {
+ var parsePsi, parsePat, parsePmt, self;
+
+ _TransportParseStream.prototype.init.call(this);
+
+ self = this;
+ this.packetsWaitingForPmt = [];
+ this.programMapTable = undefined;
+
+ parsePsi = function parsePsi(payload, psi) {
+ var offset = 0; // PSI packets may be split into multiple sections and those
+ // sections may be split into multiple packets. If a PSI
+ // section starts in this packet, the payload_unit_start_indicator
+ // will be true and the first byte of the payload will indicate
+ // the offset from the current position to the start of the
+ // section.
+
+ if (psi.payloadUnitStartIndicator) {
+ offset += payload[offset] + 1;
+ }
+
+ if (psi.type === 'pat') {
+ parsePat(payload.subarray(offset), psi);
+ } else {
+ parsePmt(payload.subarray(offset), psi);
+ }
+ };
+
+ parsePat = function parsePat(payload, pat) {
+ pat.section_number = payload[7]; // eslint-disable-line camelcase
+
+ pat.last_section_number = payload[8]; // eslint-disable-line camelcase
+ // skip the PSI header and parse the first PMT entry
+
+ self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];
+ pat.pmtPid = self.pmtPid;
+ };
+ /**
+ * Parse out the relevant fields of a Program Map Table (PMT).
+ * @param payload {Uint8Array} the PMT-specific portion of an MP2T
+ * packet. The first byte in this array should be the table_id
+ * field.
+ * @param pmt {object} the object that should be decorated with
+ * fields parsed from the PMT.
+ */
+
+
+ parsePmt = function parsePmt(payload, pmt) {
+ var sectionLength, tableEnd, programInfoLength, offset; // PMTs can be sent ahead of the time when they should actually
+ // take effect. We don't believe this should ever be the case
+ // for HLS but we'll ignore "forward" PMT declarations if we see
+ // them. Future PMT declarations have the current_next_indicator
+ // set to zero.
+
+ if (!(payload[5] & 0x01)) {
+ return;
+ } // overwrite any existing program map table
+
+
+ self.programMapTable = {
+ video: null,
+ audio: null,
+ 'timed-metadata': {}
+ }; // the mapping table ends at the end of the current section
+
+ sectionLength = (payload[1] & 0x0f) << 8 | payload[2];
+ tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how
+ // long the program info descriptors are
+
+ programInfoLength = (payload[10] & 0x0f) << 8 | payload[11]; // advance the offset to the first entry in the mapping table
+
+ offset = 12 + programInfoLength;
+
+ while (offset < tableEnd) {
+ var streamType = payload[offset];
+ var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2]; // only map a single elementary_pid for audio and video stream types
+ // TODO: should this be done for metadata too? for now maintain behavior of
+ // multiple metadata streams
+
+ if (streamType === streamTypes.H264_STREAM_TYPE && self.programMapTable.video === null) {
+ self.programMapTable.video = pid;
+ } else if (streamType === streamTypes.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {
+ self.programMapTable.audio = pid;
+ } else if (streamType === streamTypes.METADATA_STREAM_TYPE) {
+ // map pid to stream type for metadata streams
+ self.programMapTable['timed-metadata'][pid] = streamType;
+ } // move to the next table entry
+ // skip past the elementary stream descriptors, if present
+
+
+ offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;
+ } // record the map on the packet as well
+
+
+ pmt.programMapTable = self.programMapTable;
+ };
+ /**
+ * Deliver a new MP2T packet to the next stream in the pipeline.
+ */
+
+
+ this.push = function (packet) {
+ var result = {},
+ offset = 4;
+ result.payloadUnitStartIndicator = !!(packet[1] & 0x40); // pid is a 13-bit field starting at the last bit of packet[1]
+
+ result.pid = packet[1] & 0x1f;
+ result.pid <<= 8;
+ result.pid |= packet[2]; // if an adaption field is present, its length is specified by the
+ // fifth byte of the TS packet header. The adaptation field is
+ // used to add stuffing to PES packets that don't fill a complete
+ // TS packet, and to specify some forms of timing and control data
+ // that we do not currently use.
+
+ if ((packet[3] & 0x30) >>> 4 > 0x01) {
+ offset += packet[offset] + 1;
+ } // parse the rest of the packet based on the type
+
+
+ if (result.pid === 0) {
+ result.type = 'pat';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+ } else if (result.pid === this.pmtPid) {
+ result.type = 'pmt';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result); // if there are any packets waiting for a PMT to be found, process them now
+
+ while (this.packetsWaitingForPmt.length) {
+ this.processPes_.apply(this, this.packetsWaitingForPmt.shift());
+ }
+ } else if (this.programMapTable === undefined) {
+ // When we have not seen a PMT yet, defer further processing of
+ // PES packets until one has been parsed
+ this.packetsWaitingForPmt.push([packet, offset, result]);
+ } else {
+ this.processPes_(packet, offset, result);
+ }
+ };
+
+ this.processPes_ = function (packet, offset, result) {
+ // set the appropriate stream type
+ if (result.pid === this.programMapTable.video) {
+ result.streamType = streamTypes.H264_STREAM_TYPE;
+ } else if (result.pid === this.programMapTable.audio) {
+ result.streamType = streamTypes.ADTS_STREAM_TYPE;
+ } else {
+ // if not video or audio, it is timed-metadata or unknown
+ // if unknown, streamType will be undefined
+ result.streamType = this.programMapTable['timed-metadata'][result.pid];
+ }
+
+ result.type = 'pes';
+ result.data = packet.subarray(offset);
+ this.trigger('data', result);
+ };
+ };
+
+ _TransportParseStream.prototype = new stream();
+ _TransportParseStream.STREAM_TYPES = {
+ h264: 0x1b,
+ adts: 0x0f
+ };
+ /**
+ * Reconsistutes program elementary stream (PES) packets from parsed
+ * transport stream packets. That is, if you pipe an
+ * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output
+ * events will be events which capture the bytes for individual PES
+ * packets plus relevant metadata that has been extracted from the
+ * container.
+ */
+
+ _ElementaryStream = function ElementaryStream() {
+ var self = this,
+ // PES packet fragments
+ video = {
+ data: [],
+ size: 0
+ },
+ audio = {
+ data: [],
+ size: 0
+ },
+ timedMetadata = {
+ data: [],
+ size: 0
+ },
+ programMapTable,
+ parsePes = function parsePes(payload, pes) {
+ var ptsDtsFlags; // get the packet length, this will be 0 for video
+
+ pes.packetLength = 6 + (payload[4] << 8 | payload[5]); // find out if this packets starts a new keyframe
+
+ pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0; // PES packets may be annotated with a PTS value, or a PTS value
+ // and a DTS value. Determine what combination of values is
+ // available to work with.
+
+ ptsDtsFlags = payload[7]; // PTS and DTS are normally stored as a 33-bit number. Javascript
+ // performs all bitwise operations on 32-bit integers but javascript
+ // supports a much greater range (52-bits) of integer using standard
+ // mathematical operations.
+ // We construct a 31-bit value using bitwise operators over the 31
+ // most significant bits and then multiply by 4 (equal to a left-shift
+ // of 2) before we add the final 2 least significant bits of the
+ // timestamp (equal to an OR.)
+
+ if (ptsDtsFlags & 0xC0) {
+ // the PTS and DTS are not written out directly. For information
+ // on how they are encoded, see
+ // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
+ pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;
+ pes.pts *= 4; // Left shift by 2
+
+ pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs
+
+ pes.dts = pes.pts;
+
+ if (ptsDtsFlags & 0x40) {
+ pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;
+ pes.dts *= 4; // Left shift by 2
+
+ pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs
+ }
+ } // the data section starts immediately after the PES header.
+ // pes_header_data_length specifies the number of header bytes
+ // that follow the last byte of the field.
+
+
+ pes.data = payload.subarray(9 + payload[8]);
+ },
+
+ /**
+ * Pass completely parsed PES packets to the next stream in the pipeline
+ **/
+ flushStream = function flushStream(stream$$1, type, forceFlush) {
+ var packetData = new Uint8Array(stream$$1.size),
+ event = {
+ type: type
+ },
+ i = 0,
+ offset = 0,
+ packetFlushable = false,
+ fragment; // do nothing if there is not enough buffered data for a complete
+ // PES header
+
+ if (!stream$$1.data.length || stream$$1.size < 9) {
+ return;
+ }
+
+ event.trackId = stream$$1.data[0].pid; // reassemble the packet
+
+ for (i = 0; i < stream$$1.data.length; i++) {
+ fragment = stream$$1.data[i];
+ packetData.set(fragment.data, offset);
+ offset += fragment.data.byteLength;
+ } // parse assembled packet's PES header
+
+
+ parsePes(packetData, event); // non-video PES packets MUST have a non-zero PES_packet_length
+ // check that there is enough stream data to fill the packet
+
+ packetFlushable = type === 'video' || event.packetLength <= stream$$1.size; // flush pending packets if the conditions are right
+
+ if (forceFlush || packetFlushable) {
+ stream$$1.size = 0;
+ stream$$1.data.length = 0;
+ } // only emit packets that are complete. this is to avoid assembling
+ // incomplete PES packets due to poor segmentation
+
+
+ if (packetFlushable) {
+ self.trigger('data', event);
+ }
+ };
+
+ _ElementaryStream.prototype.init.call(this);
+ /**
+ * Identifies M2TS packet types and parses PES packets using metadata
+ * parsed from the PMT
+ **/
+
+
+ this.push = function (data) {
+ ({
+ pat: function pat() {// we have to wait for the PMT to arrive as well before we
+ // have any meaningful metadata
+ },
+ pes: function pes() {
+ var stream$$1, streamType;
+
+ switch (data.streamType) {
+ case streamTypes.H264_STREAM_TYPE:
+ case streamTypes.H264_STREAM_TYPE:
+ stream$$1 = video;
+ streamType = 'video';
+ break;
+
+ case streamTypes.ADTS_STREAM_TYPE:
+ stream$$1 = audio;
+ streamType = 'audio';
+ break;
+
+ case streamTypes.METADATA_STREAM_TYPE:
+ stream$$1 = timedMetadata;
+ streamType = 'timed-metadata';
+ break;
+
+ default:
+ // ignore unknown stream types
+ return;
+ } // if a new packet is starting, we can flush the completed
+ // packet
+
+
+ if (data.payloadUnitStartIndicator) {
+ flushStream(stream$$1, streamType, true);
+ } // buffer this fragment until we are sure we've received the
+ // complete payload
+
+
+ stream$$1.data.push(data);
+ stream$$1.size += data.data.byteLength;
+ },
+ pmt: function pmt() {
+ var event = {
+ type: 'metadata',
+ tracks: []
+ };
+ programMapTable = data.programMapTable; // translate audio and video streams to tracks
+
+ if (programMapTable.video !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.video,
+ codec: 'avc',
+ type: 'video'
+ });
+ }
+
+ if (programMapTable.audio !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.audio,
+ codec: 'adts',
+ type: 'audio'
+ });
+ }
+
+ self.trigger('data', event);
+ }
+ })[data.type]();
+ };
+
+ this.reset = function () {
+ video.size = 0;
+ video.data.length = 0;
+ audio.size = 0;
+ audio.data.length = 0;
+ this.trigger('reset');
+ };
+ /**
+ * Flush any remaining input. Video PES packets may be of variable
+ * length. Normally, the start of a new video packet can trigger the
+ * finalization of the previous packet. That is not possible if no
+ * more video is forthcoming, however. In that case, some other
+ * mechanism (like the end of the file) has to be employed. When it is
+ * clear that no additional data is forthcoming, calling this method
+ * will flush the buffered packets.
+ */
+
+
+ this.flushStreams_ = function () {
+ // !!THIS ORDER IS IMPORTANT!!
+ // video first then audio
+ flushStream(video, 'video');
+ flushStream(audio, 'audio');
+ flushStream(timedMetadata, 'timed-metadata');
+ };
+
+ this.flush = function () {
+ this.flushStreams_();
+ this.trigger('done');
+ };
+ };
+
+ _ElementaryStream.prototype = new stream();
+ var m2ts = {
+ PAT_PID: 0x0000,
+ MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH,
+ TransportPacketStream: _TransportPacketStream,
+ TransportParseStream: _TransportParseStream,
+ ElementaryStream: _ElementaryStream,
+ TimestampRolloverStream: TimestampRolloverStream$1,
+ CaptionStream: captionStream.CaptionStream,
+ Cea608Stream: captionStream.Cea608Stream,
+ MetadataStream: metadataStream
+ };
+
+ for (var type in streamTypes) {
+ if (streamTypes.hasOwnProperty(type)) {
+ m2ts[type] = streamTypes[type];
+ }
+ }
+
+ var m2ts_1 = m2ts;
+ var ONE_SECOND_IN_TS$2 = clock.ONE_SECOND_IN_TS;
+
+ var _AdtsStream;
+
+ var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
+ /*
+ * Accepts a ElementaryStream and emits data events with parsed
+ * AAC Audio Frames of the individual packets. Input audio in ADTS
+ * format is unpacked and re-emitted as AAC frames.
+ *
+ * @see http://wiki.multimedia.cx/index.php?title=ADTS
+ * @see http://wiki.multimedia.cx/?title=Understanding_AAC
+ */
+
+ _AdtsStream = function AdtsStream(handlePartialSegments) {
+ var buffer,
+ frameNum = 0;
+
+ _AdtsStream.prototype.init.call(this);
+
+ this.push = function (packet) {
+ var i = 0,
+ frameLength,
+ protectionSkipBytes,
+ frameEnd,
+ oldBuffer,
+ sampleCount,
+ adtsFrameDuration;
+
+ if (!handlePartialSegments) {
+ frameNum = 0;
+ }
+
+ if (packet.type !== 'audio') {
+ // ignore non-audio data
+ return;
+ } // Prepend any data in the buffer to the input data so that we can parse
+ // aac frames the cross a PES packet boundary
+
+
+ if (buffer) {
+ oldBuffer = buffer;
+ buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);
+ buffer.set(oldBuffer);
+ buffer.set(packet.data, oldBuffer.byteLength);
+ } else {
+ buffer = packet.data;
+ } // unpack any ADTS frames which have been fully received
+ // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS
+
+
+ while (i + 5 < buffer.length) {
+ // Look for the start of an ADTS header..
+ if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {
+ // If a valid header was not found, jump one forward and attempt to
+ // find a valid ADTS header starting at the next byte
+ i++;
+ continue;
+ } // The protection skip bit tells us if we have 2 bytes of CRC data at the
+ // end of the ADTS header
+
+
+ protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2; // Frame length is a 13 bit integer starting 16 bits from the
+ // end of the sync sequence
+
+ frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;
+ sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;
+ adtsFrameDuration = sampleCount * ONE_SECOND_IN_TS$2 / ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2];
+ frameEnd = i + frameLength; // If we don't have enough data to actually finish this ADTS frame, return
+ // and wait for more data
+
+ if (buffer.byteLength < frameEnd) {
+ return;
+ } // Otherwise, deliver the complete AAC frame
+
+
+ this.trigger('data', {
+ pts: packet.pts + frameNum * adtsFrameDuration,
+ dts: packet.dts + frameNum * adtsFrameDuration,
+ sampleCount: sampleCount,
+ audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,
+ channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,
+ samplerate: ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2],
+ samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,
+ // assume ISO/IEC 14496-12 AudioSampleEntry default of 16
+ samplesize: 16,
+ data: buffer.subarray(i + 7 + protectionSkipBytes, frameEnd)
+ });
+ frameNum++; // If the buffer is empty, clear it and return
+
+ if (buffer.byteLength === frameEnd) {
+ buffer = undefined;
+ return;
+ } // Remove the finished frame from the buffer and start the process again
+
+
+ buffer = buffer.subarray(frameEnd);
+ }
+ };
+
+ this.flush = function () {
+ frameNum = 0;
+ this.trigger('done');
+ };
+
+ this.reset = function () {
+ buffer = void 0;
+ this.trigger('reset');
+ };
+
+ this.endTimeline = function () {
+ buffer = void 0;
+ this.trigger('endedtimeline');
+ };
+ };
+
+ _AdtsStream.prototype = new stream();
+ var adts = _AdtsStream;
+ /**
+ * mux.js
+ *
+ * Copyright (c) Brightcove
+ * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+ */
+
+ var ExpGolomb;
+ /**
+ * Parser for exponential Golomb codes, a variable-bitwidth number encoding
+ * scheme used by h264.
+ */
+
+ ExpGolomb = function ExpGolomb(workingData) {
+ var // the number of bytes left to examine in workingData
+ workingBytesAvailable = workingData.byteLength,
+ // the current word being examined
+ workingWord = 0,
+ // :uint
+ // the number of bits left to examine in the current word
+ workingBitsAvailable = 0; // :uint;
+ // ():uint
+
+ this.length = function () {
+ return 8 * workingBytesAvailable;
+ }; // ():uint
+
+
+ this.bitsAvailable = function () {
+ return 8 * workingBytesAvailable + workingBitsAvailable;
+ }; // ():void
+
+
+ this.loadWord = function () {
+ var position = workingData.byteLength - workingBytesAvailable,
+ workingBytes = new Uint8Array(4),
+ availableBytes = Math.min(4, workingBytesAvailable);
+
+ if (availableBytes === 0) {
+ throw new Error('no bytes available');
+ }
+
+ workingBytes.set(workingData.subarray(position, position + availableBytes));
+ workingWord = new DataView(workingBytes.buffer).getUint32(0); // track the amount of workingData that has been processed
+
+ workingBitsAvailable = availableBytes * 8;
+ workingBytesAvailable -= availableBytes;
+ }; // (count:int):void
+
+
+ this.skipBits = function (count) {
+ var skipBytes; // :int
+
+ if (workingBitsAvailable > count) {
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ } else {
+ count -= workingBitsAvailable;
+ skipBytes = Math.floor(count / 8);
+ count -= skipBytes * 8;
+ workingBytesAvailable -= skipBytes;
+ this.loadWord();
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ }
+ }; // (size:int):uint
+
+
+ this.readBits = function (size) {
+ var bits = Math.min(workingBitsAvailable, size),
+ // :uint
+ valu = workingWord >>> 32 - bits; // :uint
+ // if size > 31, handle error
+
+ workingBitsAvailable -= bits;
+
+ if (workingBitsAvailable > 0) {
+ workingWord <<= bits;
+ } else if (workingBytesAvailable > 0) {
+ this.loadWord();
+ }
+
+ bits = size - bits;
+
+ if (bits > 0) {
+ return valu << bits | this.readBits(bits);
+ }
+
+ return valu;
+ }; // ():uint
+
+
+ this.skipLeadingZeros = function () {
+ var leadingZeroCount; // :uint
+
+ for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {
+ if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {
+ // the first bit of working word is 1
+ workingWord <<= leadingZeroCount;
+ workingBitsAvailable -= leadingZeroCount;
+ return leadingZeroCount;
+ }
+ } // we exhausted workingWord and still have not found a 1
+
+
+ this.loadWord();
+ return leadingZeroCount + this.skipLeadingZeros();
+ }; // ():void
+
+
+ this.skipUnsignedExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ }; // ():void
+
+
+ this.skipExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ }; // ():uint
+
+
+ this.readUnsignedExpGolomb = function () {
+ var clz = this.skipLeadingZeros(); // :uint
+
+ return this.readBits(clz + 1) - 1;
+ }; // ():int
+
+
+ this.readExpGolomb = function () {
+ var valu = this.readUnsignedExpGolomb(); // :int
+
+ if (0x01 & valu) {
+ // the number is odd if the low order bit is set
+ return 1 + valu >>> 1; // add 1 to make it even, and divide by 2
+ }
+
+ return -1 * (valu >>> 1); // divide by two then make it negative
+ }; // Some convenience functions
+ // :Boolean
+
+
+ this.readBoolean = function () {
+ return this.readBits(1) === 1;
+ }; // ():int
+
+
+ this.readUnsignedByte = function () {
+ return this.readBits(8);
+ };
+
+ this.loadWord();
+ };
+
+ var expGolomb = ExpGolomb;
+
+ var _H264Stream, _NalByteStream;
+
+ var PROFILES_WITH_OPTIONAL_SPS_DATA;
+ /**
+ * Accepts a NAL unit byte stream and unpacks the embedded NAL units.
+ */
+
+ _NalByteStream = function NalByteStream() {
+ var syncPoint = 0,
+ i,
+ buffer;
+
+ _NalByteStream.prototype.init.call(this);
+ /*
+ * Scans a byte stream and triggers a data event with the NAL units found.
+ * @param {Object} data Event received from H264Stream
+ * @param {Uint8Array} data.data The h264 byte stream to be scanned
+ *
+ * @see H264Stream.push
+ */
+
+
+ this.push = function (data) {
+ var swapBuffer;
+
+ if (!buffer) {
+ buffer = data.data;
+ } else {
+ swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);
+ swapBuffer.set(buffer);
+ swapBuffer.set(data.data, buffer.byteLength);
+ buffer = swapBuffer;
+ }
+
+ var len = buffer.byteLength; // Rec. ITU-T H.264, Annex B
+ // scan for NAL unit boundaries
+ // a match looks like this:
+ // 0 0 1 .. NAL .. 0 0 1
+ // ^ sync point ^ i
+ // or this:
+ // 0 0 1 .. NAL .. 0 0 0
+ // ^ sync point ^ i
+ // advance the sync point to a NAL start, if necessary
+
+ for (; syncPoint < len - 3; syncPoint++) {
+ if (buffer[syncPoint + 2] === 1) {
+ // the sync point is properly aligned
+ i = syncPoint + 5;
+ break;
+ }
+ }
+
+ while (i < len) {
+ // look at the current byte to determine if we've hit the end of
+ // a NAL unit boundary
+ switch (buffer[i]) {
+ case 0:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0) {
+ i += 2;
+ break;
+ } else if (buffer[i - 2] !== 0) {
+ i++;
+ break;
+ } // deliver the NAL unit if it isn't empty
+
+
+ if (syncPoint + 3 !== i - 2) {
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ } // drop trailing zeroes
+
+
+ do {
+ i++;
+ } while (buffer[i] !== 1 && i < len);
+
+ syncPoint = i - 2;
+ i += 3;
+ break;
+
+ case 1:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {
+ i += 3;
+ break;
+ } // deliver the NAL unit
+
+
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ syncPoint = i - 2;
+ i += 3;
+ break;
+
+ default:
+ // the current byte isn't a one or zero, so it cannot be part
+ // of a sync sequence
+ i += 3;
+ break;
+ }
+ } // filter out the NAL units that were delivered
+
+
+ buffer = buffer.subarray(syncPoint);
+ i -= syncPoint;
+ syncPoint = 0;
+ };
+
+ this.reset = function () {
+ buffer = null;
+ syncPoint = 0;
+ this.trigger('reset');
+ };
+
+ this.flush = function () {
+ // deliver the last buffered NAL unit
+ if (buffer && buffer.byteLength > 3) {
+ this.trigger('data', buffer.subarray(syncPoint + 3));
+ } // reset the stream state
+
+
+ buffer = null;
+ syncPoint = 0;
+ this.trigger('done');
+ };
+
+ this.endTimeline = function () {
+ this.flush();
+ this.trigger('endedtimeline');
+ };
+ };
+
+ _NalByteStream.prototype = new stream(); // values of profile_idc that indicate additional fields are included in the SPS
+ // see Recommendation ITU-T H.264 (4/2013),
+ // 7.3.2.1.1 Sequence parameter set data syntax
+
+ PROFILES_WITH_OPTIONAL_SPS_DATA = {
+ 100: true,
+ 110: true,
+ 122: true,
+ 244: true,
+ 44: true,
+ 83: true,
+ 86: true,
+ 118: true,
+ 128: true,
+ 138: true,
+ 139: true,
+ 134: true
+ };
+ /**
+ * Accepts input from a ElementaryStream and produces H.264 NAL unit data
+ * events.
+ */
+
+ _H264Stream = function H264Stream() {
+ var nalByteStream = new _NalByteStream(),
+ self,
+ trackId,
+ currentPts,
+ currentDts,
+ discardEmulationPreventionBytes,
+ readSequenceParameterSet,
+ skipScalingList;
+
+ _H264Stream.prototype.init.call(this);
+
+ self = this;
+ /*
+ * Pushes a packet from a stream onto the NalByteStream
+ *
+ * @param {Object} packet - A packet received from a stream
+ * @param {Uint8Array} packet.data - The raw bytes of the packet
+ * @param {Number} packet.dts - Decode timestamp of the packet
+ * @param {Number} packet.pts - Presentation timestamp of the packet
+ * @param {Number} packet.trackId - The id of the h264 track this packet came from
+ * @param {('video'|'audio')} packet.type - The type of packet
+ *
+ */
+
+ this.push = function (packet) {
+ if (packet.type !== 'video') {
+ return;
+ }
+
+ trackId = packet.trackId;
+ currentPts = packet.pts;
+ currentDts = packet.dts;
+ nalByteStream.push(packet);
+ };
+ /*
+ * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps
+ * for the NALUs to the next stream component.
+ * Also, preprocess caption and sequence parameter NALUs.
+ *
+ * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`
+ * @see NalByteStream.push
+ */
+
+
+ nalByteStream.on('data', function (data) {
+ var event = {
+ trackId: trackId,
+ pts: currentPts,
+ dts: currentDts,
+ data: data
+ };
+
+ switch (data[0] & 0x1f) {
+ case 0x05:
+ event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';
+ break;
+
+ case 0x06:
+ event.nalUnitType = 'sei_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ break;
+
+ case 0x07:
+ event.nalUnitType = 'seq_parameter_set_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ event.config = readSequenceParameterSet(event.escapedRBSP);
+ break;
+
+ case 0x08:
+ event.nalUnitType = 'pic_parameter_set_rbsp';
+ break;
+
+ case 0x09:
+ event.nalUnitType = 'access_unit_delimiter_rbsp';
+ break;
+
+ default:
+ break;
+ } // This triggers data on the H264Stream
+
+
+ self.trigger('data', event);
+ });
+ nalByteStream.on('done', function () {
+ self.trigger('done');
+ });
+ nalByteStream.on('partialdone', function () {
+ self.trigger('partialdone');
+ });
+ nalByteStream.on('reset', function () {
+ self.trigger('reset');
+ });
+ nalByteStream.on('endedtimeline', function () {
+ self.trigger('endedtimeline');
+ });
+
+ this.flush = function () {
+ nalByteStream.flush();
+ };
+
+ this.partialFlush = function () {
+ nalByteStream.partialFlush();
+ };
+
+ this.reset = function () {
+ nalByteStream.reset();
+ };
+
+ this.endTimeline = function () {
+ nalByteStream.endTimeline();
+ };
+ /**
+ * Advance the ExpGolomb decoder past a scaling list. The scaling
+ * list is optionally transmitted as part of a sequence parameter
+ * set and is not relevant to transmuxing.
+ * @param count {number} the number of entries in this scaling list
+ * @param expGolombDecoder {object} an ExpGolomb pointed to the
+ * start of a scaling list
+ * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
+ */
+
+
+ skipScalingList = function skipScalingList(count, expGolombDecoder) {
+ var lastScale = 8,
+ nextScale = 8,
+ j,
+ deltaScale;
+
+ for (j = 0; j < count; j++) {
+ if (nextScale !== 0) {
+ deltaScale = expGolombDecoder.readExpGolomb();
+ nextScale = (lastScale + deltaScale + 256) % 256;
+ }
+
+ lastScale = nextScale === 0 ? lastScale : nextScale;
+ }
+ };
+ /**
+ * Expunge any "Emulation Prevention" bytes from a "Raw Byte
+ * Sequence Payload"
+ * @param data {Uint8Array} the bytes of a RBSP from a NAL
+ * unit
+ * @return {Uint8Array} the RBSP without any Emulation
+ * Prevention Bytes
+ */
+
+
+ discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData; // Find all `Emulation Prevention Bytes`
+
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ } // If no Emulation Prevention Bytes were found just return the original
+ // array
+
+
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ } // Create a new array to hold the NAL unit data
+
+
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++; // Remove this position index
+
+ emulationPreventionBytesPositions.shift();
+ }
+
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+ /**
+ * Read a sequence parameter set and return some interesting video
+ * properties. A sequence parameter set is the H264 metadata that
+ * describes the properties of upcoming video frames.
+ * @param data {Uint8Array} the bytes of a sequence parameter set
+ * @return {object} an object with configuration parsed from the
+ * sequence parameter set, including the dimensions of the
+ * associated video frames.
+ */
+
+
+ readSequenceParameterSet = function readSequenceParameterSet(data) {
+ var frameCropLeftOffset = 0,
+ frameCropRightOffset = 0,
+ frameCropTopOffset = 0,
+ frameCropBottomOffset = 0,
+ sarScale = 1,
+ expGolombDecoder,
+ profileIdc,
+ levelIdc,
+ profileCompatibility,
+ chromaFormatIdc,
+ picOrderCntType,
+ numRefFramesInPicOrderCntCycle,
+ picWidthInMbsMinus1,
+ picHeightInMapUnitsMinus1,
+ frameMbsOnlyFlag,
+ scalingListCount,
+ sarRatio,
+ aspectRatioIdc,
+ i;
+ expGolombDecoder = new expGolomb(data);
+ profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc
+
+ profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag
+
+ levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id
+ // some profiles have more optional data we don't need
+
+ if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {
+ chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();
+
+ if (chromaFormatIdc === 3) {
+ expGolombDecoder.skipBits(1); // separate_colour_plane_flag
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8
+
+ expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag
+
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_matrix_present_flag
+ scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;
+
+ for (i = 0; i < scalingListCount; i++) {
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_list_present_flag[ i ]
+ if (i < 6) {
+ skipScalingList(16, expGolombDecoder);
+ } else {
+ skipScalingList(64, expGolombDecoder);
+ }
+ }
+ }
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4
+
+ picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();
+
+ if (picOrderCntType === 0) {
+ expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4
+ } else if (picOrderCntType === 1) {
+ expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag
+
+ expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic
+
+ expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field
+
+ numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();
+
+ for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
+ expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames
+
+ expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag
+
+ picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+ picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+ frameMbsOnlyFlag = expGolombDecoder.readBits(1);
+
+ if (frameMbsOnlyFlag === 0) {
+ expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag
+ }
+
+ expGolombDecoder.skipBits(1); // direct_8x8_inference_flag
+
+ if (expGolombDecoder.readBoolean()) {
+ // frame_cropping_flag
+ frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();
+ }
+
+ if (expGolombDecoder.readBoolean()) {
+ // vui_parameters_present_flag
+ if (expGolombDecoder.readBoolean()) {
+ // aspect_ratio_info_present_flag
+ aspectRatioIdc = expGolombDecoder.readUnsignedByte();
+
+ switch (aspectRatioIdc) {
+ case 1:
+ sarRatio = [1, 1];
+ break;
+
+ case 2:
+ sarRatio = [12, 11];
+ break;
+
+ case 3:
+ sarRatio = [10, 11];
+ break;
+
+ case 4:
+ sarRatio = [16, 11];
+ break;
+
+ case 5:
+ sarRatio = [40, 33];
+ break;
+
+ case 6:
+ sarRatio = [24, 11];
+ break;
+
+ case 7:
+ sarRatio = [20, 11];
+ break;
+
+ case 8:
+ sarRatio = [32, 11];
+ break;
+
+ case 9:
+ sarRatio = [80, 33];
+ break;
+
+ case 10:
+ sarRatio = [18, 11];
+ break;
+
+ case 11:
+ sarRatio = [15, 11];
+ break;
+
+ case 12:
+ sarRatio = [64, 33];
+ break;
+
+ case 13:
+ sarRatio = [160, 99];
+ break;
+
+ case 14:
+ sarRatio = [4, 3];
+ break;
+
+ case 15:
+ sarRatio = [3, 2];
+ break;
+
+ case 16:
+ sarRatio = [2, 1];
+ break;
+
+ case 255:
+ {
+ sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];
+ break;
+ }
+ }
+
+ if (sarRatio) {
+ sarScale = sarRatio[0] / sarRatio[1];
+ }
+ }
+ }
+
+ return {
+ profileIdc: profileIdc,
+ levelIdc: levelIdc,
+ profileCompatibility: profileCompatibility,
+ width: Math.ceil(((picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2) * sarScale),
+ height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2,
+ sarRatio: sarRatio
+ };
+ };
+ };
+
+ _H264Stream.prototype = new stream();
+ var h264 = {
+ H264Stream: _H264Stream,
+ NalByteStream: _NalByteStream
+ };
+ /**
+ * mux.js
+ *
+ * Copyright (c) Brightcove
+ * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+ *
+ * Utilities to detect basic properties and metadata about Aac data.
+ */
+
+ var ADTS_SAMPLING_FREQUENCIES$1 = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
+
+ var isLikelyAacData = function isLikelyAacData(data) {
+ if (data[0] === 'I'.charCodeAt(0) && data[1] === 'D'.charCodeAt(0) && data[2] === '3'.charCodeAt(0)) {
+ return true;
+ }
+
+ return false;
+ };
+
+ var parseSyncSafeInteger$1 = function parseSyncSafeInteger(data) {
+ return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
+ }; // return a percent-encoded representation of the specified byte range
+ // @see http://en.wikipedia.org/wiki/Percent-encoding
+
+
+ var percentEncode$1 = function percentEncode(bytes, start, end) {
+ var i,
+ result = '';
+
+ for (i = start; i < end; i++) {
+ result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
+ }
+
+ return result;
+ }; // return the string representation of the specified byte range,
+ // interpreted as ISO-8859-1.
+
+
+ var parseIso88591$1 = function parseIso88591(bytes, start, end) {
+ return unescape(percentEncode$1(bytes, start, end)); // jshint ignore:line
+ };
+
+ var parseId3TagSize = function parseId3TagSize(header, byteIndex) {
+ var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],
+ flags = header[byteIndex + 5],
+ footerPresent = (flags & 16) >> 4;
+
+ if (footerPresent) {
+ return returnSize + 20;
+ }
+
+ return returnSize + 10;
+ };
+
+ var parseAdtsSize = function parseAdtsSize(header, byteIndex) {
+ var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,
+ middle = header[byteIndex + 4] << 3,
+ highTwo = header[byteIndex + 3] & 0x3 << 11;
+ return highTwo | middle | lowThree;
+ };
+
+ var parseType = function parseType(header, byteIndex) {
+ if (header[byteIndex] === 'I'.charCodeAt(0) && header[byteIndex + 1] === 'D'.charCodeAt(0) && header[byteIndex + 2] === '3'.charCodeAt(0)) {
+ return 'timed-metadata';
+ } else if (header[byteIndex] & 0xff === 0xff && (header[byteIndex + 1] & 0xf0) === 0xf0) {
+ return 'audio';
+ }
+
+ return null;
+ };
+
+ var parseSampleRate = function parseSampleRate(packet) {
+ var i = 0;
+
+ while (i + 5 < packet.length) {
+ if (packet[i] !== 0xFF || (packet[i + 1] & 0xF6) !== 0xF0) {
+ // If a valid header was not found, jump one forward and attempt to
+ // find a valid ADTS header starting at the next byte
+ i++;
+ continue;
+ }
+
+ return ADTS_SAMPLING_FREQUENCIES$1[(packet[i + 2] & 0x3c) >>> 2];
+ }
+
+ return null;
+ };
+
+ var parseAacTimestamp = function parseAacTimestamp(packet) {
+ var frameStart, frameSize, frame, frameHeader; // find the start of the first frame and the end of the tag
+
+ frameStart = 10;
+
+ if (packet[5] & 0x40) {
+ // advance the frame start past the extended header
+ frameStart += 4; // header size field
+
+ frameStart += parseSyncSafeInteger$1(packet.subarray(10, 14));
+ } // parse one or more ID3 frames
+ // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+
+
+ do {
+ // determine the number of bytes in this frame
+ frameSize = parseSyncSafeInteger$1(packet.subarray(frameStart + 4, frameStart + 8));
+
+ if (frameSize < 1) {
+ return null;
+ }
+
+ frameHeader = String.fromCharCode(packet[frameStart], packet[frameStart + 1], packet[frameStart + 2], packet[frameStart + 3]);
+
+ if (frameHeader === 'PRIV') {
+ frame = packet.subarray(frameStart + 10, frameStart + frameSize + 10);
+
+ for (var i = 0; i < frame.byteLength; i++) {
+ if (frame[i] === 0) {
+ var owner = parseIso88591$1(frame, 0, i);
+
+ if (owner === 'com.apple.streaming.transportStreamTimestamp') {
+ var d = frame.subarray(i + 1);
+ var size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
+ size *= 4;
+ size += d[7] & 0x03;
+ return size;
+ }
+
+ break;
+ }
+ }
+ }
+
+ frameStart += 10; // advance past the frame header
+
+ frameStart += frameSize; // advance past the frame body
+ } while (frameStart < packet.byteLength);
+
+ return null;
+ };
+
+ var utils = {
+ isLikelyAacData: isLikelyAacData,
+ parseId3TagSize: parseId3TagSize,
+ parseAdtsSize: parseAdtsSize,
+ parseType: parseType,
+ parseSampleRate: parseSampleRate,
+ parseAacTimestamp: parseAacTimestamp
+ }; // Constants
+
+ var _AacStream;
+ /**
+ * Splits an incoming stream of binary data into ADTS and ID3 Frames.
+ */
+
+
+ _AacStream = function AacStream() {
+ var everything = new Uint8Array(),
+ timeStamp = 0;
+
+ _AacStream.prototype.init.call(this);
+
+ this.setTimestamp = function (timestamp) {
+ timeStamp = timestamp;
+ };
+
+ this.push = function (bytes) {
+ var frameSize = 0,
+ byteIndex = 0,
+ bytesLeft,
+ chunk,
+ packet,
+ tempLength; // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+
+ if (everything.length) {
+ tempLength = everything.length;
+ everything = new Uint8Array(bytes.byteLength + tempLength);
+ everything.set(everything.subarray(0, tempLength));
+ everything.set(bytes, tempLength);
+ } else {
+ everything = bytes;
+ }
+
+ while (everything.length - byteIndex >= 3) {
+ if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {
+ // Exit early because we don't have enough to parse
+ // the ID3 tag header
+ if (everything.length - byteIndex < 10) {
+ break;
+ } // check framesize
+
+
+ frameSize = utils.parseId3TagSize(everything, byteIndex); // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ // Add to byteIndex to support multiple ID3 tags in sequence
+
+ if (byteIndex + frameSize > everything.length) {
+ break;
+ }
+
+ chunk = {
+ type: 'timed-metadata',
+ data: everything.subarray(byteIndex, byteIndex + frameSize)
+ };
+ this.trigger('data', chunk);
+ byteIndex += frameSize;
+ continue;
+ } else if ((everything[byteIndex] & 0xff) === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {
+ // Exit early because we don't have enough to parse
+ // the ADTS frame header
+ if (everything.length - byteIndex < 7) {
+ break;
+ }
+
+ frameSize = utils.parseAdtsSize(everything, byteIndex); // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+
+ if (byteIndex + frameSize > everything.length) {
+ break;
+ }
+
+ packet = {
+ type: 'audio',
+ data: everything.subarray(byteIndex, byteIndex + frameSize),
+ pts: timeStamp,
+ dts: timeStamp
+ };
+ this.trigger('data', packet);
+ byteIndex += frameSize;
+ continue;
+ }
+
+ byteIndex++;
+ }
+
+ bytesLeft = everything.length - byteIndex;
+
+ if (bytesLeft > 0) {
+ everything = everything.subarray(byteIndex);
+ } else {
+ everything = new Uint8Array();
+ }
+ };
+
+ this.reset = function () {
+ everything = new Uint8Array();
+ this.trigger('reset');
+ };
+
+ this.endTimeline = function () {
+ everything = new Uint8Array();
+ this.trigger('endedtimeline');
+ };
+ };
+
+ _AacStream.prototype = new stream();
+ var aac = _AacStream;
+ var H264Stream = h264.H264Stream;
+ var isLikelyAacData$1 = utils.isLikelyAacData;
+ var ONE_SECOND_IN_TS$3 = clock.ONE_SECOND_IN_TS; // constants
+
+ var AUDIO_PROPERTIES = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];
+ var VIDEO_PROPERTIES = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility', 'sarRatio']; // object types
+
+ var _VideoSegmentStream, _AudioSegmentStream, _Transmuxer, _CoalesceStream;
+ /**
+ * Compare two arrays (even typed) for same-ness
+ */
+
+
+ var arrayEquals = function arrayEquals(a, b) {
+ var i;
+
+ if (a.length !== b.length) {
+ return false;
+ } // compare the value of each element in the array
+
+
+ for (i = 0; i < a.length; i++) {
+ if (a[i] !== b[i]) {
+ return false;
+ }
+ }
+
+ return true;
+ };
+
+ var generateVideoSegmentTimingInfo = function generateVideoSegmentTimingInfo(baseMediaDecodeTime, startDts, startPts, endDts, endPts, prependedContentDuration) {
+ var ptsOffsetFromDts = startPts - startDts,
+ decodeDuration = endDts - startDts,
+ presentationDuration = endPts - startPts; // The PTS and DTS values are based on the actual stream times from the segment,
+ // however, the player time values will reflect a start from the baseMediaDecodeTime.
+ // In order to provide relevant values for the player times, base timing info on the
+ // baseMediaDecodeTime and the DTS and PTS durations of the segment.
+
+ return {
+ start: {
+ dts: baseMediaDecodeTime,
+ pts: baseMediaDecodeTime + ptsOffsetFromDts
+ },
+ end: {
+ dts: baseMediaDecodeTime + decodeDuration,
+ pts: baseMediaDecodeTime + presentationDuration
+ },
+ prependedContentDuration: prependedContentDuration,
+ baseMediaDecodeTime: baseMediaDecodeTime
+ };
+ };
+ /**
+ * Constructs a single-track, ISO BMFF media segment from AAC data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+
+
+ _AudioSegmentStream = function AudioSegmentStream(track, options) {
+ var adtsFrames = [],
+ sequenceNumber = 0,
+ earliestAllowedDts = 0,
+ audioAppendStartTs = 0,
+ videoBaseMediaDecodeTime = Infinity;
+ options = options || {};
+
+ _AudioSegmentStream.prototype.init.call(this);
+
+ this.push = function (data) {
+ trackDecodeInfo.collectDtsInfo(track, data);
+
+ if (track) {
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ track[prop] = data[prop];
+ });
+ } // buffer audio data until end() is called
+
+
+ adtsFrames.push(data);
+ };
+
+ this.setEarliestDts = function (earliestDts) {
+ earliestAllowedDts = earliestDts - track.timelineStartInfo.baseMediaDecodeTime;
+ };
+
+ this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ videoBaseMediaDecodeTime = baseMediaDecodeTime;
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ audioAppendStartTs = timestamp;
+ };
+
+ this.flush = function () {
+ var frames, moof, mdat, boxes, frameDuration; // return early if no audio data has been observed
+
+ if (adtsFrames.length === 0) {
+ this.trigger('done', 'AudioSegmentStream');
+ return;
+ }
+
+ frames = audioFrameUtils.trimAdtsFramesByEarliestDts(adtsFrames, track, earliestAllowedDts);
+ track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+ audioFrameUtils.prefixWithSilence(track, frames, audioAppendStartTs, videoBaseMediaDecodeTime); // we have to build the index from byte locations to
+ // samples (that is, adts frames) in the audio data
+
+ track.samples = audioFrameUtils.generateSampleTable(frames); // concatenate the audio data to constuct the mdat
+
+ mdat = mp4Generator.mdat(audioFrameUtils.concatenateFrameData(frames));
+ adtsFrames = [];
+ moof = mp4Generator.moof(sequenceNumber, [track]);
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // bump the sequence number for next time
+
+ sequenceNumber++;
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+ trackDecodeInfo.clearDtsInfo(track);
+ frameDuration = Math.ceil(ONE_SECOND_IN_TS$3 * 1024 / track.samplerate); // TODO this check was added to maintain backwards compatibility (particularly with
+ // tests) on adding the timingInfo event. However, it seems unlikely that there's a
+ // valid use-case where an init segment/data should be triggered without associated
+ // frames. Leaving for now, but should be looked into.
+
+ if (frames.length) {
+ this.trigger('timingInfo', {
+ start: frames[0].dts,
+ end: frames[0].dts + frames.length * frameDuration
+ });
+ }
+
+ this.trigger('data', {
+ track: track,
+ boxes: boxes
+ });
+ this.trigger('done', 'AudioSegmentStream');
+ };
+
+ this.reset = function () {
+ trackDecodeInfo.clearDtsInfo(track);
+ adtsFrames = [];
+ this.trigger('reset');
+ };
+ };
+
+ _AudioSegmentStream.prototype = new stream();
+ /**
+ * Constructs a single-track, ISO BMFF media segment from H264 data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.alignGopsAtEnd {boolean} If true, start from the end of the
+ * gopsToAlignWith list when attempting to align gop pts
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+
+ _VideoSegmentStream = function VideoSegmentStream(track, options) {
+ var sequenceNumber = 0,
+ nalUnits = [],
+ gopsToAlignWith = [],
+ config,
+ pps;
+ options = options || {};
+
+ _VideoSegmentStream.prototype.init.call(this);
+
+ delete track.minPTS;
+ this.gopCache_ = [];
+ /**
+ * Constructs a ISO BMFF segment given H264 nalUnits
+ * @param {Object} nalUnit A data event representing a nalUnit
+ * @param {String} nalUnit.nalUnitType
+ * @param {Object} nalUnit.config Properties for a mp4 track
+ * @param {Uint8Array} nalUnit.data The nalUnit bytes
+ * @see lib/codecs/h264.js
+ **/
+
+ this.push = function (nalUnit) {
+ trackDecodeInfo.collectDtsInfo(track, nalUnit); // record the track config
+
+ if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {
+ config = nalUnit.config;
+ track.sps = [nalUnit.data];
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ track[prop] = config[prop];
+ }, this);
+ }
+
+ if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {
+ pps = nalUnit.data;
+ track.pps = [nalUnit.data];
+ } // buffer video until flush() is called
+
+
+ nalUnits.push(nalUnit);
+ };
+ /**
+ * Pass constructed ISO BMFF track and boxes on to the
+ * next stream in the pipeline
+ **/
+
+
+ this.flush = function () {
+ var frames,
+ gopForFusion,
+ gops,
+ moof,
+ mdat,
+ boxes,
+ prependedContentDuration = 0,
+ firstGop,
+ lastGop; // Throw away nalUnits at the start of the byte stream until
+ // we find the first AUD
+
+ while (nalUnits.length) {
+ if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {
+ break;
+ }
+
+ nalUnits.shift();
+ } // Return early if no video data has been observed
+
+
+ if (nalUnits.length === 0) {
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ } // Organize the raw nal-units into arrays that represent
+ // higher-level constructs such as frames and gops
+ // (group-of-pictures)
+
+
+ frames = frameUtils.groupNalsIntoFrames(nalUnits);
+ gops = frameUtils.groupFramesIntoGops(frames); // If the first frame of this fragment is not a keyframe we have
+ // a problem since MSE (on Chrome) requires a leading keyframe.
+ //
+ // We have two approaches to repairing this situation:
+ // 1) GOP-FUSION:
+ // This is where we keep track of the GOPS (group-of-pictures)
+ // from previous fragments and attempt to find one that we can
+ // prepend to the current fragment in order to create a valid
+ // fragment.
+ // 2) KEYFRAME-PULLING:
+ // Here we search for the first keyframe in the fragment and
+ // throw away all the frames between the start of the fragment
+ // and that keyframe. We then extend the duration and pull the
+ // PTS of the keyframe forward so that it covers the time range
+ // of the frames that were disposed of.
+ //
+ // #1 is far prefereable over #2 which can cause "stuttering" but
+ // requires more things to be just right.
+
+ if (!gops[0][0].keyFrame) {
+ // Search for a gop for fusion from our gopCache
+ gopForFusion = this.getGopForFusion_(nalUnits[0], track);
+
+ if (gopForFusion) {
+ // in order to provide more accurate timing information about the segment, save
+ // the number of seconds prepended to the original segment due to GOP fusion
+ prependedContentDuration = gopForFusion.duration;
+ gops.unshift(gopForFusion); // Adjust Gops' metadata to account for the inclusion of the
+ // new gop at the beginning
+
+ gops.byteLength += gopForFusion.byteLength;
+ gops.nalCount += gopForFusion.nalCount;
+ gops.pts = gopForFusion.pts;
+ gops.dts = gopForFusion.dts;
+ gops.duration += gopForFusion.duration;
+ } else {
+ // If we didn't find a candidate gop fall back to keyframe-pulling
+ gops = frameUtils.extendFirstKeyFrame(gops);
+ }
+ } // Trim gops to align with gopsToAlignWith
+
+
+ if (gopsToAlignWith.length) {
+ var alignedGops;
+
+ if (options.alignGopsAtEnd) {
+ alignedGops = this.alignGopsAtEnd_(gops);
+ } else {
+ alignedGops = this.alignGopsAtStart_(gops);
+ }
+
+ if (!alignedGops) {
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ }); // Keep a maximum of 6 GOPs in the cache
+
+ this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits
+
+ nalUnits = []; // return early no gops can be aligned with desired gopsToAlignWith
+
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ } // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct
+ // when recalculated before sending off to CoalesceStream
+
+
+ trackDecodeInfo.clearDtsInfo(track);
+ gops = alignedGops;
+ }
+
+ trackDecodeInfo.collectDtsInfo(track, gops); // First, we have to build the index from byte locations to
+ // samples (that is, frames) in the video data
+
+ track.samples = frameUtils.generateSampleTable(gops); // Concatenate the video data and construct the mdat
+
+ mdat = mp4Generator.mdat(frameUtils.concatenateNalData(gops));
+ track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+ this.trigger('processedGopsInfo', gops.map(function (gop) {
+ return {
+ pts: gop.pts,
+ dts: gop.dts,
+ byteLength: gop.byteLength
+ };
+ }));
+ firstGop = gops[0];
+ lastGop = gops[gops.length - 1];
+ this.trigger('segmentTimingInfo', generateVideoSegmentTimingInfo(track.baseMediaDecodeTime, firstGop.dts, firstGop.pts, lastGop.dts + lastGop.duration, lastGop.pts + lastGop.duration, prependedContentDuration));
+ this.trigger('timingInfo', {
+ start: gops[0].dts,
+ end: gops[gops.length - 1].dts + gops[gops.length - 1].duration
+ }); // save all the nals in the last GOP into the gop cache
+
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ }); // Keep a maximum of 6 GOPs in the cache
+
+ this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits
+
+ nalUnits = [];
+ this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);
+ this.trigger('timelineStartInfo', track.timelineStartInfo);
+ moof = mp4Generator.moof(sequenceNumber, [track]); // it would be great to allocate this array up front instead of
+ // throwing away hundreds of media segment fragments
+
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // Bump the sequence number for next time
+
+ sequenceNumber++;
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+ this.trigger('data', {
+ track: track,
+ boxes: boxes
+ });
+ this.resetStream_(); // Continue with the flush process now
+
+ this.trigger('done', 'VideoSegmentStream');
+ };
+
+ this.reset = function () {
+ this.resetStream_();
+ nalUnits = [];
+ this.gopCache_.length = 0;
+ gopsToAlignWith.length = 0;
+ this.trigger('reset');
+ };
+
+ this.resetStream_ = function () {
+ trackDecodeInfo.clearDtsInfo(track); // reset config and pps because they may differ across segments
+ // for instance, when we are rendition switching
+
+ config = undefined;
+ pps = undefined;
+ }; // Search for a candidate Gop for gop-fusion from the gop cache and
+ // return it or return null if no good candidate was found
+
+
+ this.getGopForFusion_ = function (nalUnit) {
+ var halfSecond = 45000,
+ // Half-a-second in a 90khz clock
+ allowableOverlap = 10000,
+ // About 3 frames @ 30fps
+ nearestDistance = Infinity,
+ dtsDistance,
+ nearestGopObj,
+ currentGop,
+ currentGopObj,
+ i; // Search for the GOP nearest to the beginning of this nal unit
+
+ for (i = 0; i < this.gopCache_.length; i++) {
+ currentGopObj = this.gopCache_[i];
+ currentGop = currentGopObj.gop; // Reject Gops with different SPS or PPS
+
+ if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {
+ continue;
+ } // Reject Gops that would require a negative baseMediaDecodeTime
+
+
+ if (currentGop.dts < track.timelineStartInfo.dts) {
+ continue;
+ } // The distance between the end of the gop and the start of the nalUnit
+
+
+ dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration; // Only consider GOPS that start before the nal unit and end within
+ // a half-second of the nal unit
+
+ if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {
+ // Always use the closest GOP we found if there is more than
+ // one candidate
+ if (!nearestGopObj || nearestDistance > dtsDistance) {
+ nearestGopObj = currentGopObj;
+ nearestDistance = dtsDistance;
+ }
+ }
+ }
+
+ if (nearestGopObj) {
+ return nearestGopObj.gop;
+ }
+
+ return null;
+ }; // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the START of the list
+
+
+ this.alignGopsAtStart_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;
+ byteLength = gops.byteLength;
+ nalCount = gops.nalCount;
+ duration = gops.duration;
+ alignIndex = gopIndex = 0;
+
+ while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ break;
+ }
+
+ if (gop.pts > align.pts) {
+ // this current gop starts after the current gop we want to align on, so increment
+ // align index
+ alignIndex++;
+ continue;
+ } // current gop starts before the current gop we want to align on. so increment gop
+ // index
+
+
+ gopIndex++;
+ byteLength -= gop.byteLength;
+ nalCount -= gop.nalCount;
+ duration -= gop.duration;
+ }
+
+ if (gopIndex === 0) {
+ // no gops to trim
+ return gops;
+ }
+
+ if (gopIndex === gops.length) {
+ // all gops trimmed, skip appending all gops
+ return null;
+ }
+
+ alignedGops = gops.slice(gopIndex);
+ alignedGops.byteLength = byteLength;
+ alignedGops.duration = duration;
+ alignedGops.nalCount = nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+ return alignedGops;
+ }; // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the END of the list
+
+
+ this.alignGopsAtEnd_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;
+ alignIndex = gopsToAlignWith.length - 1;
+ gopIndex = gops.length - 1;
+ alignEndIndex = null;
+ matchFound = false;
+
+ while (alignIndex >= 0 && gopIndex >= 0) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ matchFound = true;
+ break;
+ }
+
+ if (align.pts > gop.pts) {
+ alignIndex--;
+ continue;
+ }
+
+ if (alignIndex === gopsToAlignWith.length - 1) {
+ // gop.pts is greater than the last alignment candidate. If no match is found
+ // by the end of this loop, we still want to append gops that come after this
+ // point
+ alignEndIndex = gopIndex;
+ }
+
+ gopIndex--;
+ }
+
+ if (!matchFound && alignEndIndex === null) {
+ return null;
+ }
+
+ var trimIndex;
+
+ if (matchFound) {
+ trimIndex = gopIndex;
+ } else {
+ trimIndex = alignEndIndex;
+ }
+
+ if (trimIndex === 0) {
+ return gops;
+ }
+
+ var alignedGops = gops.slice(trimIndex);
+ var metadata = alignedGops.reduce(function (total, gop) {
+ total.byteLength += gop.byteLength;
+ total.duration += gop.duration;
+ total.nalCount += gop.nalCount;
+ return total;
+ }, {
+ byteLength: 0,
+ duration: 0,
+ nalCount: 0
+ });
+ alignedGops.byteLength = metadata.byteLength;
+ alignedGops.duration = metadata.duration;
+ alignedGops.nalCount = metadata.nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+ return alignedGops;
+ };
+
+ this.alignGopsWith = function (newGopsToAlignWith) {
+ gopsToAlignWith = newGopsToAlignWith;
+ };
+ };
+
+ _VideoSegmentStream.prototype = new stream();
+ /**
+ * A Stream that can combine multiple streams (ie. audio & video)
+ * into a single output segment for MSE. Also supports audio-only
+ * and video-only streams.
+ * @param options {object} transmuxer options object
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at media timeline start.
+ */
+
+ _CoalesceStream = function CoalesceStream(options, metadataStream) {
+ // Number of Tracks per output segment
+ // If greater than 1, we combine multiple
+ // tracks into a single segment
+ this.numberOfTracks = 0;
+ this.metadataStream = metadataStream;
+ options = options || {};
+
+ if (typeof options.remux !== 'undefined') {
+ this.remuxTracks = !!options.remux;
+ } else {
+ this.remuxTracks = true;
+ }
+
+ if (typeof options.keepOriginalTimestamps === 'boolean') {
+ this.keepOriginalTimestamps = options.keepOriginalTimestamps;
+ } else {
+ this.keepOriginalTimestamps = false;
+ }
+
+ this.pendingTracks = [];
+ this.videoTrack = null;
+ this.pendingBoxes = [];
+ this.pendingCaptions = [];
+ this.pendingMetadata = [];
+ this.pendingBytes = 0;
+ this.emittedTracks = 0;
+
+ _CoalesceStream.prototype.init.call(this); // Take output from multiple
+
+
+ this.push = function (output) {
+ // buffer incoming captions until the associated video segment
+ // finishes
+ if (output.text) {
+ return this.pendingCaptions.push(output);
+ } // buffer incoming id3 tags until the final flush
+
+
+ if (output.frames) {
+ return this.pendingMetadata.push(output);
+ } // Add this track to the list of pending tracks and store
+ // important information required for the construction of
+ // the final segment
+
+
+ this.pendingTracks.push(output.track);
+ this.pendingBytes += output.boxes.byteLength; // TODO: is there an issue for this against chrome?
+ // We unshift audio and push video because
+ // as of Chrome 75 when switching from
+ // one init segment to another if the video
+ // mdat does not appear after the audio mdat
+ // only audio will play for the duration of our transmux.
+
+ if (output.track.type === 'video') {
+ this.videoTrack = output.track;
+ this.pendingBoxes.push(output.boxes);
+ }
+
+ if (output.track.type === 'audio') {
+ this.audioTrack = output.track;
+ this.pendingBoxes.unshift(output.boxes);
+ }
+ };
+ };
+
+ _CoalesceStream.prototype = new stream();
+
+ _CoalesceStream.prototype.flush = function (flushSource) {
+ var offset = 0,
+ event = {
+ captions: [],
+ captionStreams: {},
+ metadata: [],
+ info: {}
+ },
+ caption,
+ id3,
+ initSegment,
+ timelineStartPts = 0,
+ i;
+
+ if (this.pendingTracks.length < this.numberOfTracks) {
+ if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {
+ // Return because we haven't received a flush from a data-generating
+ // portion of the segment (meaning that we have only recieved meta-data
+ // or captions.)
+ return;
+ } else if (this.remuxTracks) {
+ // Return until we have enough tracks from the pipeline to remux (if we
+ // are remuxing audio and video into a single MP4)
+ return;
+ } else if (this.pendingTracks.length === 0) {
+ // In the case where we receive a flush without any data having been
+ // received we consider it an emitted track for the purposes of coalescing
+ // `done` events.
+ // We do this for the case where there is an audio and video track in the
+ // segment but no audio data. (seen in several playlists with alternate
+ // audio tracks and no audio present in the main TS segments.)
+ this.emittedTracks++;
+
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+
+ return;
+ }
+ }
+
+ if (this.videoTrack) {
+ timelineStartPts = this.videoTrack.timelineStartInfo.pts;
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.videoTrack[prop];
+ }, this);
+ } else if (this.audioTrack) {
+ timelineStartPts = this.audioTrack.timelineStartInfo.pts;
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.audioTrack[prop];
+ }, this);
+ }
+
+ if (this.videoTrack || this.audioTrack) {
+ if (this.pendingTracks.length === 1) {
+ event.type = this.pendingTracks[0].type;
+ } else {
+ event.type = 'combined';
+ }
+
+ this.emittedTracks += this.pendingTracks.length;
+ initSegment = mp4Generator.initSegment(this.pendingTracks); // Create a new typed array to hold the init segment
+
+ event.initSegment = new Uint8Array(initSegment.byteLength); // Create an init segment containing a moov
+ // and track definitions
+
+ event.initSegment.set(initSegment); // Create a new typed array to hold the moof+mdats
+
+ event.data = new Uint8Array(this.pendingBytes); // Append each moof+mdat (one per track) together
+
+ for (i = 0; i < this.pendingBoxes.length; i++) {
+ event.data.set(this.pendingBoxes[i], offset);
+ offset += this.pendingBoxes[i].byteLength;
+ } // Translate caption PTS times into second offsets to match the
+ // video timeline for the segment, and add track info
+
+
+ for (i = 0; i < this.pendingCaptions.length; i++) {
+ caption = this.pendingCaptions[i];
+ caption.startTime = clock.metadataTsToSeconds(caption.startPts, timelineStartPts, this.keepOriginalTimestamps);
+ caption.endTime = clock.metadataTsToSeconds(caption.endPts, timelineStartPts, this.keepOriginalTimestamps);
+ event.captionStreams[caption.stream] = true;
+ event.captions.push(caption);
+ } // Translate ID3 frame PTS times into second offsets to match the
+ // video timeline for the segment
+
+
+ for (i = 0; i < this.pendingMetadata.length; i++) {
+ id3 = this.pendingMetadata[i];
+ id3.cueTime = clock.metadataTsToSeconds(id3.pts, timelineStartPts, this.keepOriginalTimestamps);
+ event.metadata.push(id3);
+ } // We add this to every single emitted segment even though we only need
+ // it for the first
+
+
+ event.metadata.dispatchType = this.metadataStream.dispatchType; // Reset stream state
+
+ this.pendingTracks.length = 0;
+ this.videoTrack = null;
+ this.pendingBoxes.length = 0;
+ this.pendingCaptions.length = 0;
+ this.pendingBytes = 0;
+ this.pendingMetadata.length = 0; // Emit the built segment
+ // We include captions and ID3 tags for backwards compatibility,
+ // ideally we should send only video and audio in the data event
+
+ this.trigger('data', event); // Emit each caption to the outside world
+ // Ideally, this would happen immediately on parsing captions,
+ // but we need to ensure that video data is sent back first
+ // so that caption timing can be adjusted to match video timing
+
+ for (i = 0; i < event.captions.length; i++) {
+ caption = event.captions[i];
+ this.trigger('caption', caption);
+ } // Emit each id3 tag to the outside world
+ // Ideally, this would happen immediately on parsing the tag,
+ // but we need to ensure that video data is sent back first
+ // so that ID3 frame timing can be adjusted to match video timing
+
+
+ for (i = 0; i < event.metadata.length; i++) {
+ id3 = event.metadata[i];
+ this.trigger('id3Frame', id3);
+ }
+ } // Only emit `done` if all tracks have been flushed and emitted
+
+
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ };
+
+ _CoalesceStream.prototype.setRemux = function (val) {
+ this.remuxTracks = val;
+ };
+ /**
+ * A Stream that expects MP2T binary data as input and produces
+ * corresponding media segments, suitable for use with Media Source
+ * Extension (MSE) implementations that support the ISO BMFF byte
+ * stream format, like Chrome.
+ */
+
+
+ _Transmuxer = function Transmuxer(options) {
+ var self = this,
+ hasFlushed = true,
+ videoTrack,
+ audioTrack;
+
+ _Transmuxer.prototype.init.call(this);
+
+ options = options || {};
+ this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;
+ this.transmuxPipeline_ = {};
+
+ this.setupAacPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+ pipeline.type = 'aac';
+ pipeline.metadataStream = new m2ts_1.MetadataStream(); // set up the parsing pipeline
+
+ pipeline.aacStream = new aac();
+ pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new adts();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.aacStream;
+ pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+ pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+ pipeline.metadataStream.on('timestamp', function (frame) {
+ pipeline.aacStream.setTimestamp(frame.timeStamp);
+ });
+ pipeline.aacStream.on('data', function (data) {
+ if (data.type === 'timed-metadata' && !pipeline.audioSegmentStream) {
+ audioTrack = audioTrack || {
+ timelineStartInfo: {
+ baseMediaDecodeTime: self.baseMediaDecodeTime
+ },
+ codec: 'adts',
+ type: 'audio'
+ }; // hook up the audio segment stream to the first track with aac data
+
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+ pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo')); // Set up the final part of the audio pipeline
+
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ } // emit pmt info
+
+
+ self.trigger('trackinfo', {
+ hasAudio: !!audioTrack,
+ hasVideo: !!videoTrack
+ });
+ }); // Re-emit any data coming from the coalesce stream to the outside world
+
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data')); // Let the consumer know we have finished flushing the entire pipeline
+
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ this.setupTsPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+ pipeline.type = 'ts';
+ pipeline.metadataStream = new m2ts_1.MetadataStream(); // set up the parsing pipeline
+
+ pipeline.packetStream = new m2ts_1.TransportPacketStream();
+ pipeline.parseStream = new m2ts_1.TransportParseStream();
+ pipeline.elementaryStream = new m2ts_1.ElementaryStream();
+ pipeline.timestampRolloverStream = new m2ts_1.TimestampRolloverStream();
+ pipeline.adtsStream = new adts();
+ pipeline.h264Stream = new H264Stream();
+ pipeline.captionStream = new m2ts_1.CaptionStream();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.packetStream; // disassemble MPEG2-TS packets into elementary streams
+
+ pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream).pipe(pipeline.timestampRolloverStream); // !!THIS ORDER IS IMPORTANT!!
+ // demux the streams
+
+ pipeline.timestampRolloverStream.pipe(pipeline.h264Stream);
+ pipeline.timestampRolloverStream.pipe(pipeline.adtsStream);
+ pipeline.timestampRolloverStream.pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream); // Hook up CEA-608/708 caption stream
+
+ pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);
+ pipeline.elementaryStream.on('data', function (data) {
+ var i;
+
+ if (data.type === 'metadata') {
+ i = data.tracks.length; // scan the tracks listed in the metadata
+
+ while (i--) {
+ if (!videoTrack && data.tracks[i].type === 'video') {
+ videoTrack = data.tracks[i];
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ } else if (!audioTrack && data.tracks[i].type === 'audio') {
+ audioTrack = data.tracks[i];
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ }
+ } // hook up the video segment stream to the first track with h264 data
+
+
+ if (videoTrack && !pipeline.videoSegmentStream) {
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.videoSegmentStream = new _VideoSegmentStream(videoTrack, options);
+ pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {
+ // When video emits timelineStartInfo data after a flush, we forward that
+ // info to the AudioSegmentStream, if it exists, because video timeline
+ // data takes precedence.
+ if (audioTrack) {
+ audioTrack.timelineStartInfo = timelineStartInfo; // On the first segment we trim AAC frames that exist before the
+ // very earliest DTS we have seen in video because Chrome will
+ // interpret any video track with a baseMediaDecodeTime that is
+ // non-zero as a gap.
+
+ pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts);
+ }
+ });
+ pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));
+ pipeline.videoSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'videoSegmentTimingInfo'));
+ pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {
+ if (audioTrack) {
+ pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);
+ }
+ });
+ pipeline.videoSegmentStream.on('timingInfo', self.trigger.bind(self, 'videoTimingInfo')); // Set up the final part of the video pipeline
+
+ pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);
+ }
+
+ if (audioTrack && !pipeline.audioSegmentStream) {
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+ pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo')); // Set up the final part of the audio pipeline
+
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ } // emit pmt info
+
+
+ self.trigger('trackinfo', {
+ hasAudio: !!audioTrack,
+ hasVideo: !!videoTrack
+ });
+ }
+ }); // Re-emit any data coming from the coalesce stream to the outside world
+
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ pipeline.coalesceStream.on('id3Frame', function (id3Frame) {
+ id3Frame.dispatchType = pipeline.metadataStream.dispatchType;
+ self.trigger('id3Frame', id3Frame);
+ });
+ pipeline.coalesceStream.on('caption', this.trigger.bind(this, 'caption')); // Let the consumer know we have finished flushing the entire pipeline
+
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ }; // hook up the segment streams once track metadata is delivered
+
+
+ this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ var pipeline = this.transmuxPipeline_;
+
+ if (!options.keepOriginalTimestamps) {
+ this.baseMediaDecodeTime = baseMediaDecodeTime;
+ }
+
+ if (audioTrack) {
+ audioTrack.timelineStartInfo.dts = undefined;
+ audioTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo.clearDtsInfo(audioTrack);
+
+ if (!options.keepOriginalTimestamps) {
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ }
+
+ if (pipeline.audioTimestampRolloverStream) {
+ pipeline.audioTimestampRolloverStream.discontinuity();
+ }
+ }
+
+ if (videoTrack) {
+ if (pipeline.videoSegmentStream) {
+ pipeline.videoSegmentStream.gopCache_ = [];
+ }
+
+ videoTrack.timelineStartInfo.dts = undefined;
+ videoTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo.clearDtsInfo(videoTrack);
+ pipeline.captionStream.reset();
+
+ if (!options.keepOriginalTimestamps) {
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ }
+ }
+
+ if (pipeline.timestampRolloverStream) {
+ pipeline.timestampRolloverStream.discontinuity();
+ }
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ if (audioTrack) {
+ this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);
+ }
+ };
+
+ this.setRemux = function (val) {
+ var pipeline = this.transmuxPipeline_;
+ options.remux = val;
+
+ if (pipeline && pipeline.coalesceStream) {
+ pipeline.coalesceStream.setRemux(val);
+ }
+ };
+
+ this.alignGopsWith = function (gopsToAlignWith) {
+ if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {
+ this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);
+ }
+ }; // feed incoming data to the front of the parsing pipeline
+
+
+ this.push = function (data) {
+ if (hasFlushed) {
+ var isAac = isLikelyAacData$1(data);
+
+ if (isAac && this.transmuxPipeline_.type !== 'aac') {
+ this.setupAacPipeline();
+ } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {
+ this.setupTsPipeline();
+ }
+
+ hasFlushed = false;
+ }
+
+ this.transmuxPipeline_.headOfPipeline.push(data);
+ }; // flush any buffered data
+
+
+ this.flush = function () {
+ hasFlushed = true; // Start at the top of the pipeline and flush all pending work
+
+ this.transmuxPipeline_.headOfPipeline.flush();
+ };
+
+ this.endTimeline = function () {
+ this.transmuxPipeline_.headOfPipeline.endTimeline();
+ };
+
+ this.reset = function () {
+ if (this.transmuxPipeline_.headOfPipeline) {
+ this.transmuxPipeline_.headOfPipeline.reset();
+ }
+ }; // Caption data has to be reset when seeking outside buffered range
+
+
+ this.resetCaptions = function () {
+ if (this.transmuxPipeline_.captionStream) {
+ this.transmuxPipeline_.captionStream.reset();
+ }
+ };
+ };
+
+ _Transmuxer.prototype = new stream();
+ var transmuxer = {
+ Transmuxer: _Transmuxer,
+ VideoSegmentStream: _VideoSegmentStream,
+ AudioSegmentStream: _AudioSegmentStream,
+ AUDIO_PROPERTIES: AUDIO_PROPERTIES,
+ VIDEO_PROPERTIES: VIDEO_PROPERTIES,
+ // exported for testing
+ generateVideoSegmentTimingInfo: generateVideoSegmentTimingInfo
+ };
+
+ var classCallCheck = function classCallCheck(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+ /**
+ * @file transmuxer-worker.js
+ */
+
+ /**
+ * Re-emits transmuxer events by converting them into messages to the
+ * world outside the worker.
+ *
+ * @param {Object} transmuxer the transmuxer to wire events on
+ * @private
+ */
+
+
+ var wireTransmuxerEvents = function wireTransmuxerEvents(self, transmuxer$$1) {
+ transmuxer$$1.on('data', function (segment) {
+ // transfer ownership of the underlying ArrayBuffer
+ // instead of doing a copy to save memory
+ // ArrayBuffers are transferable but generic TypedArrays are not
+ // @link https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers#Passing_data_by_transferring_ownership_(transferable_objects)
+ var initArray = segment.initSegment;
+ segment.initSegment = {
+ data: initArray.buffer,
+ byteOffset: initArray.byteOffset,
+ byteLength: initArray.byteLength
+ };
+ var typedArray = segment.data;
+ segment.data = typedArray.buffer;
+ self.postMessage({
+ action: 'data',
+ segment: segment,
+ byteOffset: typedArray.byteOffset,
+ byteLength: typedArray.byteLength
+ }, [segment.data]);
+ });
+
+ if (transmuxer$$1.captionStream) {
+ transmuxer$$1.captionStream.on('data', function (caption) {
+ self.postMessage({
+ action: 'caption',
+ data: caption
+ });
+ });
+ }
+
+ transmuxer$$1.on('done', function (data) {
+ self.postMessage({
+ action: 'done'
+ });
+ });
+ transmuxer$$1.on('gopInfo', function (gopInfo) {
+ self.postMessage({
+ action: 'gopInfo',
+ gopInfo: gopInfo
+ });
+ });
+ transmuxer$$1.on('videoSegmentTimingInfo', function (videoSegmentTimingInfo) {
+ self.postMessage({
+ action: 'videoSegmentTimingInfo',
+ videoSegmentTimingInfo: videoSegmentTimingInfo
+ });
+ });
+ };
+ /**
+ * All incoming messages route through this hash. If no function exists
+ * to handle an incoming message, then we ignore the message.
+ *
+ * @class MessageHandlers
+ * @param {Object} options the options to initialize with
+ */
+
+
+ var MessageHandlers = function () {
+ function MessageHandlers(self, options) {
+ classCallCheck(this, MessageHandlers);
+ this.options = options || {};
+ this.self = self;
+ this.init();
+ }
+ /**
+ * initialize our web worker and wire all the events.
+ */
+
+
+ createClass(MessageHandlers, [{
+ key: 'init',
+ value: function init() {
+ if (this.transmuxer) {
+ this.transmuxer.dispose();
+ }
+
+ this.transmuxer = new transmuxer.Transmuxer(this.options);
+ wireTransmuxerEvents(this.self, this.transmuxer);
+ }
+ /**
+ * Adds data (a ts segment) to the start of the transmuxer pipeline for
+ * processing.
+ *
+ * @param {ArrayBuffer} data data to push into the muxer
+ */
+
+ }, {
+ key: 'push',
+ value: function push(data) {
+ // Cast array buffer to correct type for transmuxer
+ var segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);
+ this.transmuxer.push(segment);
+ }
+ /**
+ * Recreate the transmuxer so that the next segment added via `push`
+ * start with a fresh transmuxer.
+ */
+
+ }, {
+ key: 'reset',
+ value: function reset() {
+ this.init();
+ }
+ /**
+ * Set the value that will be used as the `baseMediaDecodeTime` time for the
+ * next segment pushed in. Subsequent segments will have their `baseMediaDecodeTime`
+ * set relative to the first based on the PTS values.
+ *
+ * @param {Object} data used to set the timestamp offset in the muxer
+ */
+
+ }, {
+ key: 'setTimestampOffset',
+ value: function setTimestampOffset(data) {
+ var timestampOffset = data.timestampOffset || 0;
+ this.transmuxer.setBaseMediaDecodeTime(Math.round(timestampOffset * 90000));
+ }
+ }, {
+ key: 'setAudioAppendStart',
+ value: function setAudioAppendStart(data) {
+ this.transmuxer.setAudioAppendStart(Math.ceil(data.appendStart * 90000));
+ }
+ /**
+ * Forces the pipeline to finish processing the last segment and emit it's
+ * results.
+ *
+ * @param {Object} data event data, not really used
+ */
+
+ }, {
+ key: 'flush',
+ value: function flush(data) {
+ this.transmuxer.flush();
+ }
+ }, {
+ key: 'resetCaptions',
+ value: function resetCaptions() {
+ this.transmuxer.resetCaptions();
+ }
+ }, {
+ key: 'alignGopsWith',
+ value: function alignGopsWith(data) {
+ this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice());
+ }
+ }]);
+ return MessageHandlers;
+ }();
+ /**
+ * Our web wroker interface so that things can talk to mux.js
+ * that will be running in a web worker. the scope is passed to this by
+ * webworkify.
+ *
+ * @param {Object} self the scope for the web worker
+ */
+
+
+ var TransmuxerWorker = function TransmuxerWorker(self) {
+ self.onmessage = function (event) {
+ if (event.data.action === 'init' && event.data.options) {
+ this.messageHandlers = new MessageHandlers(self, event.data.options);
+ return;
+ }
+
+ if (!this.messageHandlers) {
+ this.messageHandlers = new MessageHandlers(self);
+ }
+
+ if (event.data && event.data.action && event.data.action !== 'init') {
+ if (this.messageHandlers[event.data.action]) {
+ this.messageHandlers[event.data.action](event.data);
+ }
+ }
+ };
+ };
+
+ var transmuxerWorker = new TransmuxerWorker(self);
+ return transmuxerWorker;
+ }();
+});
+/**
+ * @file - codecs.js - Handles tasks regarding codec strings such as translating them to
+ * codec strings, or translating codec strings into objects that can be examined.
+ */
+// Default codec parameters if none were provided for video and/or audio
+
+var defaultCodecs = {
+ videoCodec: 'avc1',
+ videoObjectTypeIndicator: '.4d400d',
+ // AAC-LC
+ audioProfile: '2'
+};
+/**
+ * Replace the old apple-style `avc1.<dd>.<dd>` codec string with the standard
+ * `avc1.<hhhhhh>`
+ *
+ * @param {Array} codecs an array of codec strings to fix
+ * @return {Array} the translated codec array
+ * @private
+ */
+
+var translateLegacyCodecs = function translateLegacyCodecs(codecs) {
+ return codecs.map(function (codec) {
+ return codec.replace(/avc1\.(\d+)\.(\d+)/i, function (orig, profile, avcLevel) {
+ var profileHex = ('00' + Number(profile).toString(16)).slice(-2);
+ var avcLevelHex = ('00' + Number(avcLevel).toString(16)).slice(-2);
+ return 'avc1.' + profileHex + '00' + avcLevelHex;
+ });
+ });
+};
+/**
+ * Parses a codec string to retrieve the number of codecs specified,
+ * the video codec and object type indicator, and the audio profile.
+ */
+
+
+var parseCodecs = function parseCodecs() {
+ var codecs = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+ var result = {
+ codecCount: 0
+ };
+ var parsed = void 0;
+ result.codecCount = codecs.split(',').length;
+ result.codecCount = result.codecCount || 2; // parse the video codec
+
+ parsed = /(^|\s|,)+(avc[13])([^ ,]*)/i.exec(codecs);
+
+ if (parsed) {
+ result.videoCodec = parsed[2];
+ result.videoObjectTypeIndicator = parsed[3];
+ } // parse the last field of the audio codec
+
+
+ result.audioProfile = /(^|\s|,)+mp4a.[0-9A-Fa-f]+\.([0-9A-Fa-f]+)/i.exec(codecs);
+ result.audioProfile = result.audioProfile && result.audioProfile[2];
+ return result;
+};
+/**
+ * Replace codecs in the codec string with the old apple-style `avc1.<dd>.<dd>` to the
+ * standard `avc1.<hhhhhh>`.
+ *
+ * @param codecString {String} the codec string
+ * @return {String} the codec string with old apple-style codecs replaced
+ *
+ * @private
+ */
+
+
+var mapLegacyAvcCodecs = function mapLegacyAvcCodecs(codecString) {
+ return codecString.replace(/avc1\.(\d+)\.(\d+)/i, function (match) {
+ return translateLegacyCodecs([match])[0];
+ });
+};
+/**
+ * Build a media mime-type string from a set of parameters
+ * @param {String} type either 'audio' or 'video'
+ * @param {String} container either 'mp2t' or 'mp4'
+ * @param {Array} codecs an array of codec strings to add
+ * @return {String} a valid media mime-type
+ */
+
+
+var makeMimeTypeString = function makeMimeTypeString(type, container, codecs) {
+ // The codecs array is filtered so that falsey values are
+ // dropped and don't cause Array#join to create spurious
+ // commas
+ return type + '/' + container + '; codecs="' + codecs.filter(function (c) {
+ return !!c;
+ }).join(', ') + '"';
+};
+/**
+ * Returns the type container based on information in the playlist
+ * @param {Playlist} media the current media playlist
+ * @return {String} a valid media container type
+ */
+
+
+var getContainerType = function getContainerType(media) {
+ // An initialization segment means the media playlist is an iframe
+ // playlist or is using the mp4 container. We don't currently
+ // support iframe playlists, so assume this is signalling mp4
+ // fragments.
+ if (media.segments && media.segments.length && media.segments[0].map) {
+ return 'mp4';
+ }
+
+ return 'mp2t';
+};
+/**
+ * Returns a set of codec strings parsed from the playlist or the default
+ * codec strings if no codecs were specified in the playlist
+ * @param {Playlist} media the current media playlist
+ * @return {Object} an object with the video and audio codecs
+ */
+
+
+var getCodecs = function getCodecs(media) {
+ // if the codecs were explicitly specified, use them instead of the
+ // defaults
+ var mediaAttributes = media.attributes || {};
+
+ if (mediaAttributes.CODECS) {
+ return parseCodecs(mediaAttributes.CODECS);
+ }
+
+ return defaultCodecs;
+};
+
+var audioProfileFromDefault = function audioProfileFromDefault(master, audioGroupId) {
+ if (!master.mediaGroups.AUDIO || !audioGroupId) {
+ return null;
+ }
+
+ var audioGroup = master.mediaGroups.AUDIO[audioGroupId];
+
+ if (!audioGroup) {
+ return null;
+ }
+
+ for (var name in audioGroup) {
+ var audioType = audioGroup[name];
+
+ if (audioType["default"] && audioType.playlists) {
+ // codec should be the same for all playlists within the audio type
+ return parseCodecs(audioType.playlists[0].attributes.CODECS).audioProfile;
+ }
+ }
+
+ return null;
+};
+/**
+ * Calculates the MIME type strings for a working configuration of
+ * SourceBuffers to play variant streams in a master playlist. If
+ * there is no possible working configuration, an empty array will be
+ * returned.
+ *
+ * @param master {Object} the m3u8 object for the master playlist
+ * @param media {Object} the m3u8 object for the variant playlist
+ * @return {Array} the MIME type strings. If the array has more than
+ * one entry, the first element should be applied to the video
+ * SourceBuffer and the second to the audio SourceBuffer.
+ *
+ * @private
+ */
+
+
+var mimeTypesForPlaylist = function mimeTypesForPlaylist(master, media) {
+ var containerType = getContainerType(media);
+ var codecInfo = getCodecs(media);
+ var mediaAttributes = media.attributes || {}; // Default condition for a traditional HLS (no demuxed audio/video)
+
+ var isMuxed = true;
+ var isMaat = false;
+
+ if (!media) {
+ // Not enough information
+ return [];
+ }
+
+ if (master.mediaGroups.AUDIO && mediaAttributes.AUDIO) {
+ var audioGroup = master.mediaGroups.AUDIO[mediaAttributes.AUDIO]; // Handle the case where we are in a multiple-audio track scenario
+
+ if (audioGroup) {
+ isMaat = true; // Start with the everything demuxed then...
+
+ isMuxed = false; // ...check to see if any audio group tracks are muxed (ie. lacking a uri)
+
+ for (var groupId in audioGroup) {
+ // either a uri is present (if the case of HLS and an external playlist), or
+ // playlists is present (in the case of DASH where we don't have external audio
+ // playlists)
+ if (!audioGroup[groupId].uri && !audioGroup[groupId].playlists) {
+ isMuxed = true;
+ break;
+ }
+ }
+ }
+ } // HLS with multiple-audio tracks must always get an audio codec.
+ // Put another way, there is no way to have a video-only multiple-audio HLS!
+
+
+ if (isMaat && !codecInfo.audioProfile) {
+ if (!isMuxed) {
+ // It is possible for codecs to be specified on the audio media group playlist but
+ // not on the rendition playlist. This is mostly the case for DASH, where audio and
+ // video are always separate (and separately specified).
+ codecInfo.audioProfile = audioProfileFromDefault(master, mediaAttributes.AUDIO);
+ }
+
+ if (!codecInfo.audioProfile) {
+ videojs$1.log.warn('Multiple audio tracks present but no audio codec string is specified. ' + 'Attempting to use the default audio codec (mp4a.40.2)');
+ codecInfo.audioProfile = defaultCodecs.audioProfile;
+ }
+ } // Generate the final codec strings from the codec object generated above
+
+
+ var codecStrings = {};
+
+ if (codecInfo.videoCodec) {
+ codecStrings.video = '' + codecInfo.videoCodec + codecInfo.videoObjectTypeIndicator;
+ }
+
+ if (codecInfo.audioProfile) {
+ codecStrings.audio = 'mp4a.40.' + codecInfo.audioProfile;
+ } // Finally, make and return an array with proper mime-types depending on
+ // the configuration
+
+
+ var justAudio = makeMimeTypeString('audio', containerType, [codecStrings.audio]);
+ var justVideo = makeMimeTypeString('video', containerType, [codecStrings.video]);
+ var bothVideoAudio = makeMimeTypeString('video', containerType, [codecStrings.video, codecStrings.audio]);
+
+ if (isMaat) {
+ if (!isMuxed && codecStrings.video) {
+ return [justVideo, justAudio];
+ }
+
+ if (!isMuxed && !codecStrings.video) {
+ // There is no muxed content and no video codec string, so this is an audio only
+ // stream with alternate audio.
+ return [justAudio, justAudio];
+ } // There exists the possiblity that this will return a `video/container`
+ // mime-type for the first entry in the array even when there is only audio.
+ // This doesn't appear to be a problem and simplifies the code.
+
+
+ return [bothVideoAudio, justAudio];
+ } // If there is no video codec at all, always just return a single
+ // audio/<container> mime-type
+
+
+ if (!codecStrings.video) {
+ return [justAudio];
+ } // When not using separate audio media groups, audio and video is
+ // *always* muxed
+
+
+ return [bothVideoAudio];
+};
+/**
+ * Parse a content type header into a type and parameters
+ * object
+ *
+ * @param {String} type the content type header
+ * @return {Object} the parsed content-type
+ * @private
+ */
+
+
+var parseContentType = function parseContentType(type) {
+ var object = {
+ type: '',
+ parameters: {}
+ };
+ var parameters = type.trim().split(';'); // first parameter should always be content-type
+
+ object.type = parameters.shift().trim();
+ parameters.forEach(function (parameter) {
+ var pair = parameter.trim().split('=');
+
+ if (pair.length > 1) {
+ var name = pair[0].replace(/"/g, '').trim();
+ var value = pair[1].replace(/"/g, '').trim();
+ object.parameters[name] = value;
+ }
+ });
+ return object;
+};
+/**
+ * Check if a codec string refers to an audio codec.
+ *
+ * @param {String} codec codec string to check
+ * @return {Boolean} if this is an audio codec
+ * @private
+ */
+
+
+var isAudioCodec = function isAudioCodec(codec) {
+ return /mp4a\.\d+.\d+/i.test(codec);
+};
+/**
+ * Check if a codec string refers to a video codec.
+ *
+ * @param {String} codec codec string to check
+ * @return {Boolean} if this is a video codec
+ * @private
+ */
+
+
+var isVideoCodec = function isVideoCodec(codec) {
+ return /avc1\.[\da-f]+/i.test(codec);
+};
+/**
+ * Returns a list of gops in the buffer that have a pts value of 3 seconds or more in
+ * front of current time.
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Number} currentTime
+ * The current time
+ * @param {Double} mapping
+ * Offset to map display time to stream presentation time
+ * @return {Array}
+ * List of gops considered safe to append over
+ */
+
+
+var gopsSafeToAlignWith = function gopsSafeToAlignWith(buffer, currentTime, mapping) {
+ if (typeof currentTime === 'undefined' || currentTime === null || !buffer.length) {
+ return [];
+ } // pts value for current time + 3 seconds to give a bit more wiggle room
+
+
+ var currentTimePts = Math.ceil((currentTime - mapping + 3) * 90000);
+ var i = void 0;
+
+ for (i = 0; i < buffer.length; i++) {
+ if (buffer[i].pts > currentTimePts) {
+ break;
+ }
+ }
+
+ return buffer.slice(i);
+};
+/**
+ * Appends gop information (timing and byteLength) received by the transmuxer for the
+ * gops appended in the last call to appendBuffer
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Array} gops
+ * List of new gop information
+ * @param {boolean} replace
+ * If true, replace the buffer with the new gop information. If false, append the
+ * new gop information to the buffer in the right location of time.
+ * @return {Array}
+ * Updated list of gop information
+ */
+
+
+var updateGopBuffer = function updateGopBuffer(buffer, gops, replace) {
+ if (!gops.length) {
+ return buffer;
+ }
+
+ if (replace) {
+ // If we are in safe append mode, then completely overwrite the gop buffer
+ // with the most recent appeneded data. This will make sure that when appending
+ // future segments, we only try to align with gops that are both ahead of current
+ // time and in the last segment appended.
+ return gops.slice();
+ }
+
+ var start = gops[0].pts;
+ var i = 0;
+
+ for (i; i < buffer.length; i++) {
+ if (buffer[i].pts >= start) {
+ break;
+ }
+ }
+
+ return buffer.slice(0, i).concat(gops);
+};
+/**
+ * Removes gop information in buffer that overlaps with provided start and end
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Double} start
+ * position to start the remove at
+ * @param {Double} end
+ * position to end the remove at
+ * @param {Double} mapping
+ * Offset to map display time to stream presentation time
+ */
+
+
+var removeGopBuffer = function removeGopBuffer(buffer, start, end, mapping) {
+ var startPts = Math.ceil((start - mapping) * 90000);
+ var endPts = Math.ceil((end - mapping) * 90000);
+ var updatedBuffer = buffer.slice();
+ var i = buffer.length;
+
+ while (i--) {
+ if (buffer[i].pts <= endPts) {
+ break;
+ }
+ }
+
+ if (i === -1) {
+ // no removal because end of remove range is before start of buffer
+ return updatedBuffer;
+ }
+
+ var j = i + 1;
+
+ while (j--) {
+ if (buffer[j].pts <= startPts) {
+ break;
+ }
+ } // clamp remove range start to 0 index
+
+
+ j = Math.max(j, 0);
+ updatedBuffer.splice(j, i - j + 1);
+ return updatedBuffer;
+};
+
+var buffered = function buffered(videoBuffer, audioBuffer, audioDisabled) {
+ var start = null;
+ var end = null;
+ var arity = 0;
+ var extents = [];
+ var ranges = []; // neither buffer has been created yet
+
+ if (!videoBuffer && !audioBuffer) {
+ return videojs$1.createTimeRange();
+ } // only one buffer is configured
+
+
+ if (!videoBuffer) {
+ return audioBuffer.buffered;
+ }
+
+ if (!audioBuffer) {
+ return videoBuffer.buffered;
+ } // both buffers are configured
+
+
+ if (audioDisabled) {
+ return videoBuffer.buffered;
+ } // both buffers are empty
+
+
+ if (videoBuffer.buffered.length === 0 && audioBuffer.buffered.length === 0) {
+ return videojs$1.createTimeRange();
+ } // Handle the case where we have both buffers and create an
+ // intersection of the two
+
+
+ var videoBuffered = videoBuffer.buffered;
+ var audioBuffered = audioBuffer.buffered;
+ var count = videoBuffered.length; // A) Gather up all start and end times
+
+ while (count--) {
+ extents.push({
+ time: videoBuffered.start(count),
+ type: 'start'
+ });
+ extents.push({
+ time: videoBuffered.end(count),
+ type: 'end'
+ });
+ }
+
+ count = audioBuffered.length;
+
+ while (count--) {
+ extents.push({
+ time: audioBuffered.start(count),
+ type: 'start'
+ });
+ extents.push({
+ time: audioBuffered.end(count),
+ type: 'end'
+ });
+ } // B) Sort them by time
+
+
+ extents.sort(function (a, b) {
+ return a.time - b.time;
+ }); // C) Go along one by one incrementing arity for start and decrementing
+ // arity for ends
+
+ for (count = 0; count < extents.length; count++) {
+ if (extents[count].type === 'start') {
+ arity++; // D) If arity is ever incremented to 2 we are entering an
+ // overlapping range
+
+ if (arity === 2) {
+ start = extents[count].time;
+ }
+ } else if (extents[count].type === 'end') {
+ arity--; // E) If arity is ever decremented to 1 we leaving an
+ // overlapping range
+
+ if (arity === 1) {
+ end = extents[count].time;
+ }
+ } // F) Record overlapping ranges
+
+
+ if (start !== null && end !== null) {
+ ranges.push([start, end]);
+ start = null;
+ end = null;
+ }
+ }
+
+ return videojs$1.createTimeRanges(ranges);
+};
+/**
+ * @file virtual-source-buffer.js
+ */
+
+
+var ONE_SECOND_IN_TS = 90000; // We create a wrapper around the SourceBuffer so that we can manage the
+// state of the `updating` property manually. We have to do this because
+// Firefox changes `updating` to false long before triggering `updateend`
+// events and that was causing strange problems in videojs-contrib-hls
+
+var makeWrappedSourceBuffer = function makeWrappedSourceBuffer(mediaSource, mimeType) {
+ var sourceBuffer = mediaSource.addSourceBuffer(mimeType);
+ var wrapper = Object.create(null);
+ wrapper.updating = false;
+ wrapper.realBuffer_ = sourceBuffer;
+
+ var _loop = function _loop(key) {
+ if (typeof sourceBuffer[key] === 'function') {
+ wrapper[key] = function () {
+ return sourceBuffer[key].apply(sourceBuffer, arguments);
+ };
+ } else if (typeof wrapper[key] === 'undefined') {
+ Object.defineProperty(wrapper, key, {
+ get: function get$$1() {
+ return sourceBuffer[key];
+ },
+ set: function set$$1(v) {
+ return sourceBuffer[key] = v;
+ }
+ });
+ }
+ };
+
+ for (var key in sourceBuffer) {
+ _loop(key);
+ }
+
+ return wrapper;
+};
+/**
+ * VirtualSourceBuffers exist so that we can transmux non native formats
+ * into a native format, but keep the same api as a native source buffer.
+ * It creates a transmuxer, that works in its own thread (a web worker) and
+ * that transmuxer muxes the data into a native format. VirtualSourceBuffer will
+ * then send all of that data to the naive sourcebuffer so that it is
+ * indestinguishable from a natively supported format.
+ *
+ * @param {HtmlMediaSource} mediaSource the parent mediaSource
+ * @param {Array} codecs array of codecs that we will be dealing with
+ * @class VirtualSourceBuffer
+ * @extends video.js.EventTarget
+ */
+
+
+var VirtualSourceBuffer = function (_videojs$EventTarget) {
+ inherits(VirtualSourceBuffer, _videojs$EventTarget);
+
+ function VirtualSourceBuffer(mediaSource, codecs) {
+ classCallCheck(this, VirtualSourceBuffer);
+
+ var _this = possibleConstructorReturn(this, (VirtualSourceBuffer.__proto__ || Object.getPrototypeOf(VirtualSourceBuffer)).call(this, videojs$1.EventTarget));
+
+ _this.timestampOffset_ = 0;
+ _this.pendingBuffers_ = [];
+ _this.bufferUpdating_ = false;
+ _this.mediaSource_ = mediaSource;
+ _this.codecs_ = codecs;
+ _this.audioCodec_ = null;
+ _this.videoCodec_ = null;
+ _this.audioDisabled_ = false;
+ _this.appendAudioInitSegment_ = true;
+ _this.gopBuffer_ = [];
+ _this.timeMapping_ = 0;
+ _this.safeAppend_ = videojs$1.browser.IE_VERSION >= 11;
+ var options = {
+ remux: false,
+ alignGopsAtEnd: _this.safeAppend_
+ };
+
+ _this.codecs_.forEach(function (codec) {
+ if (isAudioCodec(codec)) {
+ _this.audioCodec_ = codec;
+ } else if (isVideoCodec(codec)) {
+ _this.videoCodec_ = codec;
+ }
+ }); // append muxed segments to their respective native buffers as
+ // soon as they are available
+
+
+ _this.transmuxer_ = new TransmuxWorker();
+
+ _this.transmuxer_.postMessage({
+ action: 'init',
+ options: options
+ });
+
+ _this.transmuxer_.onmessage = function (event) {
+ if (event.data.action === 'data') {
+ return _this.data_(event);
+ }
+
+ if (event.data.action === 'done') {
+ return _this.done_(event);
+ }
+
+ if (event.data.action === 'gopInfo') {
+ return _this.appendGopInfo_(event);
+ }
+
+ if (event.data.action === 'videoSegmentTimingInfo') {
+ return _this.videoSegmentTimingInfo_(event.data.videoSegmentTimingInfo);
+ }
+ }; // this timestampOffset is a property with the side-effect of resetting
+ // baseMediaDecodeTime in the transmuxer on the setter
+
+
+ Object.defineProperty(_this, 'timestampOffset', {
+ get: function get$$1() {
+ return this.timestampOffset_;
+ },
+ set: function set$$1(val) {
+ if (typeof val === 'number' && val >= 0) {
+ this.timestampOffset_ = val;
+ this.appendAudioInitSegment_ = true; // reset gop buffer on timestampoffset as this signals a change in timeline
+
+ this.gopBuffer_.length = 0;
+ this.timeMapping_ = 0; // We have to tell the transmuxer to set the baseMediaDecodeTime to
+ // the desired timestampOffset for the next segment
+
+ this.transmuxer_.postMessage({
+ action: 'setTimestampOffset',
+ timestampOffset: val
+ });
+ }
+ }
+ }); // setting the append window affects both source buffers
+
+ Object.defineProperty(_this, 'appendWindowStart', {
+ get: function get$$1() {
+ return (this.videoBuffer_ || this.audioBuffer_).appendWindowStart;
+ },
+ set: function set$$1(start) {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.appendWindowStart = start;
+ }
+
+ if (this.audioBuffer_) {
+ this.audioBuffer_.appendWindowStart = start;
+ }
+ }
+ }); // this buffer is "updating" if either of its native buffers are
+
+ Object.defineProperty(_this, 'updating', {
+ get: function get$$1() {
+ return !!(this.bufferUpdating_ || !this.audioDisabled_ && this.audioBuffer_ && this.audioBuffer_.updating || this.videoBuffer_ && this.videoBuffer_.updating);
+ }
+ }); // the buffered property is the intersection of the buffered
+ // ranges of the native source buffers
+
+ Object.defineProperty(_this, 'buffered', {
+ get: function get$$1() {
+ return buffered(this.videoBuffer_, this.audioBuffer_, this.audioDisabled_);
+ }
+ });
+ return _this;
+ }
+ /**
+ * When we get a data event from the transmuxer
+ * we call this function and handle the data that
+ * was sent to us
+ *
+ * @private
+ * @param {Event} event the data event from the transmuxer
+ */
+
+
+ createClass(VirtualSourceBuffer, [{
+ key: 'data_',
+ value: function data_(event) {
+ var segment = event.data.segment; // Cast ArrayBuffer to TypedArray
+
+ segment.data = new Uint8Array(segment.data, event.data.byteOffset, event.data.byteLength);
+ segment.initSegment = new Uint8Array(segment.initSegment.data, segment.initSegment.byteOffset, segment.initSegment.byteLength);
+ createTextTracksIfNecessary(this, this.mediaSource_, segment); // Add the segments to the pendingBuffers array
+
+ this.pendingBuffers_.push(segment);
+ return;
+ }
+ /**
+ * When we get a done event from the transmuxer
+ * we call this function and we process all
+ * of the pending data that we have been saving in the
+ * data_ function
+ *
+ * @private
+ * @param {Event} event the done event from the transmuxer
+ */
+
+ }, {
+ key: 'done_',
+ value: function done_(event) {
+ // Don't process and append data if the mediaSource is closed
+ if (this.mediaSource_.readyState === 'closed') {
+ this.pendingBuffers_.length = 0;
+ return;
+ } // All buffers should have been flushed from the muxer
+ // start processing anything we have received
+
+
+ this.processPendingSegments_();
+ return;
+ }
+ }, {
+ key: 'videoSegmentTimingInfo_',
+ value: function videoSegmentTimingInfo_(timingInfo) {
+ var timingInfoInSeconds = {
+ start: {
+ decode: timingInfo.start.dts / ONE_SECOND_IN_TS,
+ presentation: timingInfo.start.pts / ONE_SECOND_IN_TS
+ },
+ end: {
+ decode: timingInfo.end.dts / ONE_SECOND_IN_TS,
+ presentation: timingInfo.end.pts / ONE_SECOND_IN_TS
+ },
+ baseMediaDecodeTime: timingInfo.baseMediaDecodeTime / ONE_SECOND_IN_TS
+ };
+
+ if (timingInfo.prependedContentDuration) {
+ timingInfoInSeconds.prependedContentDuration = timingInfo.prependedContentDuration / ONE_SECOND_IN_TS;
+ }
+
+ this.trigger({
+ type: 'videoSegmentTimingInfo',
+ videoSegmentTimingInfo: timingInfoInSeconds
+ });
+ }
+ /**
+ * Create our internal native audio/video source buffers and add
+ * event handlers to them with the following conditions:
+ * 1. they do not already exist on the mediaSource
+ * 2. this VSB has a codec for them
+ *
+ * @private
+ */
+
+ }, {
+ key: 'createRealSourceBuffers_',
+ value: function createRealSourceBuffers_() {
+ var _this2 = this;
+
+ var types = ['audio', 'video'];
+ types.forEach(function (type) {
+ // Don't create a SourceBuffer of this type if we don't have a
+ // codec for it
+ if (!_this2[type + 'Codec_']) {
+ return;
+ } // Do nothing if a SourceBuffer of this type already exists
+
+
+ if (_this2[type + 'Buffer_']) {
+ return;
+ }
+
+ var buffer = null; // If the mediasource already has a SourceBuffer for the codec
+ // use that
+
+ if (_this2.mediaSource_[type + 'Buffer_']) {
+ buffer = _this2.mediaSource_[type + 'Buffer_']; // In multiple audio track cases, the audio source buffer is disabled
+ // on the main VirtualSourceBuffer by the HTMLMediaSource much earlier
+ // than createRealSourceBuffers_ is called to create the second
+ // VirtualSourceBuffer because that happens as a side-effect of
+ // videojs-contrib-hls starting the audioSegmentLoader. As a result,
+ // the audioBuffer is essentially "ownerless" and no one will toggle
+ // the `updating` state back to false once the `updateend` event is received
+ //
+ // Setting `updating` to false manually will work around this
+ // situation and allow work to continue
+
+ buffer.updating = false;
+ } else {
+ var codecProperty = type + 'Codec_';
+ var mimeType = type + '/mp4;codecs="' + _this2[codecProperty] + '"';
+ buffer = makeWrappedSourceBuffer(_this2.mediaSource_.nativeMediaSource_, mimeType);
+ _this2.mediaSource_[type + 'Buffer_'] = buffer;
+ }
+
+ _this2[type + 'Buffer_'] = buffer; // Wire up the events to the SourceBuffer
+
+ ['update', 'updatestart', 'updateend'].forEach(function (event) {
+ buffer.addEventListener(event, function () {
+ // if audio is disabled
+ if (type === 'audio' && _this2.audioDisabled_) {
+ return;
+ }
+
+ if (event === 'updateend') {
+ _this2[type + 'Buffer_'].updating = false;
+ }
+
+ var shouldTrigger = types.every(function (t) {
+ // skip checking audio's updating status if audio
+ // is not enabled
+ if (t === 'audio' && _this2.audioDisabled_) {
+ return true;
+ } // if the other type is updating we don't trigger
+
+
+ if (type !== t && _this2[t + 'Buffer_'] && _this2[t + 'Buffer_'].updating) {
+ return false;
+ }
+
+ return true;
+ });
+
+ if (shouldTrigger) {
+ return _this2.trigger(event);
+ }
+ });
+ });
+ });
+ }
+ /**
+ * Emulate the native mediasource function, but our function will
+ * send all of the proposed segments to the transmuxer so that we
+ * can transmux them before we append them to our internal
+ * native source buffers in the correct format.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/appendBuffer
+ * @param {Uint8Array} segment the segment to append to the buffer
+ */
+
+ }, {
+ key: 'appendBuffer',
+ value: function appendBuffer(segment) {
+ // Start the internal "updating" state
+ this.bufferUpdating_ = true;
+
+ if (this.audioBuffer_ && this.audioBuffer_.buffered.length) {
+ var audioBuffered = this.audioBuffer_.buffered;
+ this.transmuxer_.postMessage({
+ action: 'setAudioAppendStart',
+ appendStart: audioBuffered.end(audioBuffered.length - 1)
+ });
+ }
+
+ if (this.videoBuffer_) {
+ this.transmuxer_.postMessage({
+ action: 'alignGopsWith',
+ gopsToAlignWith: gopsSafeToAlignWith(this.gopBuffer_, this.mediaSource_.player_ ? this.mediaSource_.player_.currentTime() : null, this.timeMapping_)
+ });
+ }
+
+ this.transmuxer_.postMessage({
+ action: 'push',
+ // Send the typed-array of data as an ArrayBuffer so that
+ // it can be sent as a "Transferable" and avoid the costly
+ // memory copy
+ data: segment.buffer,
+ // To recreate the original typed-array, we need information
+ // about what portion of the ArrayBuffer it was a view into
+ byteOffset: segment.byteOffset,
+ byteLength: segment.byteLength
+ }, [segment.buffer]);
+ this.transmuxer_.postMessage({
+ action: 'flush'
+ });
+ }
+ /**
+ * Appends gop information (timing and byteLength) received by the transmuxer for the
+ * gops appended in the last call to appendBuffer
+ *
+ * @param {Event} event
+ * The gopInfo event from the transmuxer
+ * @param {Array} event.data.gopInfo
+ * List of gop info to append
+ */
+
+ }, {
+ key: 'appendGopInfo_',
+ value: function appendGopInfo_(event) {
+ this.gopBuffer_ = updateGopBuffer(this.gopBuffer_, event.data.gopInfo, this.safeAppend_);
+ }
+ /**
+ * Emulate the native mediasource function and remove parts
+ * of the buffer from any of our internal buffers that exist
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/remove
+ * @param {Double} start position to start the remove at
+ * @param {Double} end position to end the remove at
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.updating = true;
+ this.videoBuffer_.remove(start, end);
+ this.gopBuffer_ = removeGopBuffer(this.gopBuffer_, start, end, this.timeMapping_);
+ }
+
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.audioBuffer_.updating = true;
+ this.audioBuffer_.remove(start, end);
+ } // Remove Metadata Cues (id3)
+
+
+ removeCuesFromTrack(start, end, this.metadataTrack_); // Remove Any Captions
+
+ if (this.inbandTextTracks_) {
+ for (var track in this.inbandTextTracks_) {
+ removeCuesFromTrack(start, end, this.inbandTextTracks_[track]);
+ }
+ }
+ }
+ /**
+ * Process any segments that the muxer has output
+ * Concatenate segments together based on type and append them into
+ * their respective sourceBuffers
+ *
+ * @private
+ */
+
+ }, {
+ key: 'processPendingSegments_',
+ value: function processPendingSegments_() {
+ var sortedSegments = {
+ video: {
+ segments: [],
+ bytes: 0
+ },
+ audio: {
+ segments: [],
+ bytes: 0
+ },
+ captions: [],
+ metadata: []
+ };
+
+ if (!this.pendingBuffers_.length) {
+ // We are no longer in the internal "updating" state
+ this.trigger('updateend');
+ this.bufferUpdating_ = false;
+ return;
+ } // Sort segments into separate video/audio arrays and
+ // keep track of their total byte lengths
+
+
+ sortedSegments = this.pendingBuffers_.reduce(function (segmentObj, segment) {
+ var type = segment.type;
+ var data = segment.data;
+ var initSegment = segment.initSegment;
+ segmentObj[type].segments.push(data);
+ segmentObj[type].bytes += data.byteLength;
+ segmentObj[type].initSegment = initSegment; // Gather any captions into a single array
+
+ if (segment.captions) {
+ segmentObj.captions = segmentObj.captions.concat(segment.captions);
+ }
+
+ if (segment.info) {
+ segmentObj[type].info = segment.info;
+ } // Gather any metadata into a single array
+
+
+ if (segment.metadata) {
+ segmentObj.metadata = segmentObj.metadata.concat(segment.metadata);
+ }
+
+ return segmentObj;
+ }, sortedSegments); // Create the real source buffers if they don't exist by now since we
+ // finally are sure what tracks are contained in the source
+
+ if (!this.videoBuffer_ && !this.audioBuffer_) {
+ // Remove any codecs that may have been specified by default but
+ // are no longer applicable now
+ if (sortedSegments.video.bytes === 0) {
+ this.videoCodec_ = null;
+ }
+
+ if (sortedSegments.audio.bytes === 0) {
+ this.audioCodec_ = null;
+ }
+
+ this.createRealSourceBuffers_();
+ }
+
+ if (sortedSegments.audio.info) {
+ this.mediaSource_.trigger({
+ type: 'audioinfo',
+ info: sortedSegments.audio.info
+ });
+ }
+
+ if (sortedSegments.video.info) {
+ this.mediaSource_.trigger({
+ type: 'videoinfo',
+ info: sortedSegments.video.info
+ });
+ }
+
+ if (this.appendAudioInitSegment_) {
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ sortedSegments.audio.segments.unshift(sortedSegments.audio.initSegment);
+ sortedSegments.audio.bytes += sortedSegments.audio.initSegment.byteLength;
+ }
+
+ this.appendAudioInitSegment_ = false;
+ }
+
+ var triggerUpdateend = false; // Merge multiple video and audio segments into one and append
+
+ if (this.videoBuffer_ && sortedSegments.video.bytes) {
+ sortedSegments.video.segments.unshift(sortedSegments.video.initSegment);
+ sortedSegments.video.bytes += sortedSegments.video.initSegment.byteLength;
+ this.concatAndAppendSegments_(sortedSegments.video, this.videoBuffer_);
+ } else if (this.videoBuffer_ && (this.audioDisabled_ || !this.audioBuffer_)) {
+ // The transmuxer did not return any bytes of video, meaning it was all trimmed
+ // for gop alignment. Since we have a video buffer and audio is disabled, updateend
+ // will never be triggered by this source buffer, which will cause contrib-hls
+ // to be stuck forever waiting for updateend. If audio is not disabled, updateend
+ // will be triggered by the audio buffer, which will be sent upwards since the video
+ // buffer will not be in an updating state.
+ triggerUpdateend = true;
+ } // Add text-track data for all
+
+
+ addTextTrackData(this, sortedSegments.captions, sortedSegments.metadata);
+
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.concatAndAppendSegments_(sortedSegments.audio, this.audioBuffer_);
+ }
+
+ this.pendingBuffers_.length = 0;
+
+ if (triggerUpdateend) {
+ this.trigger('updateend');
+ } // We are no longer in the internal "updating" state
+
+
+ this.bufferUpdating_ = false;
+ }
+ /**
+ * Combine all segments into a single Uint8Array and then append them
+ * to the destination buffer
+ *
+ * @param {Object} segmentObj
+ * @param {SourceBuffer} destinationBuffer native source buffer to append data to
+ * @private
+ */
+
+ }, {
+ key: 'concatAndAppendSegments_',
+ value: function concatAndAppendSegments_(segmentObj, destinationBuffer) {
+ var offset = 0;
+ var tempBuffer = void 0;
+
+ if (segmentObj.bytes) {
+ tempBuffer = new Uint8Array(segmentObj.bytes); // Combine the individual segments into one large typed-array
+
+ segmentObj.segments.forEach(function (segment) {
+ tempBuffer.set(segment, offset);
+ offset += segment.byteLength;
+ });
+
+ try {
+ destinationBuffer.updating = true;
+ destinationBuffer.appendBuffer(tempBuffer);
+ } catch (error) {
+ if (this.mediaSource_.player_) {
+ this.mediaSource_.player_.error({
+ code: -3,
+ type: 'APPEND_BUFFER_ERR',
+ message: error.message,
+ originalError: error
+ });
+ }
+ }
+ }
+ }
+ /**
+ * Emulate the native mediasource function. abort any soureBuffer
+ * actions and throw out any un-appended data.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/abort
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort() {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.abort();
+ }
+
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.audioBuffer_.abort();
+ }
+
+ if (this.transmuxer_) {
+ this.transmuxer_.postMessage({
+ action: 'reset'
+ });
+ }
+
+ this.pendingBuffers_.length = 0;
+ this.bufferUpdating_ = false;
+ }
+ }]);
+ return VirtualSourceBuffer;
+}(videojs$1.EventTarget);
+/**
+ * @file html-media-source.js
+ */
+
+/**
+ * Our MediaSource implementation in HTML, mimics native
+ * MediaSource where/if possible.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource
+ * @class HtmlMediaSource
+ * @extends videojs.EventTarget
+ */
+
+
+var HtmlMediaSource = function (_videojs$EventTarget) {
+ inherits(HtmlMediaSource, _videojs$EventTarget);
+
+ function HtmlMediaSource() {
+ classCallCheck(this, HtmlMediaSource);
+
+ var _this = possibleConstructorReturn(this, (HtmlMediaSource.__proto__ || Object.getPrototypeOf(HtmlMediaSource)).call(this));
+
+ var property = void 0;
+ _this.nativeMediaSource_ = new window$1.MediaSource(); // delegate to the native MediaSource's methods by default
+
+ for (property in _this.nativeMediaSource_) {
+ if (!(property in HtmlMediaSource.prototype) && typeof _this.nativeMediaSource_[property] === 'function') {
+ _this[property] = _this.nativeMediaSource_[property].bind(_this.nativeMediaSource_);
+ }
+ } // emulate `duration` and `seekable` until seeking can be
+ // handled uniformly for live streams
+ // see https://github.com/w3c/media-source/issues/5
+
+
+ _this.duration_ = NaN;
+ Object.defineProperty(_this, 'duration', {
+ get: function get$$1() {
+ if (this.duration_ === Infinity) {
+ return this.duration_;
+ }
+
+ return this.nativeMediaSource_.duration;
+ },
+ set: function set$$1(duration) {
+ this.duration_ = duration;
+
+ if (duration !== Infinity) {
+ this.nativeMediaSource_.duration = duration;
+ return;
+ }
+ }
+ });
+ Object.defineProperty(_this, 'seekable', {
+ get: function get$$1() {
+ if (this.duration_ === Infinity) {
+ return videojs$1.createTimeRanges([[0, this.nativeMediaSource_.duration]]);
+ }
+
+ return this.nativeMediaSource_.seekable;
+ }
+ });
+ Object.defineProperty(_this, 'readyState', {
+ get: function get$$1() {
+ return this.nativeMediaSource_.readyState;
+ }
+ });
+ Object.defineProperty(_this, 'activeSourceBuffers', {
+ get: function get$$1() {
+ return this.activeSourceBuffers_;
+ }
+ }); // the list of virtual and native SourceBuffers created by this
+ // MediaSource
+
+ _this.sourceBuffers = [];
+ _this.activeSourceBuffers_ = [];
+ /**
+ * update the list of active source buffers based upon various
+ * imformation from HLS and video.js
+ *
+ * @private
+ */
+
+ _this.updateActiveSourceBuffers_ = function () {
+ // Retain the reference but empty the array
+ _this.activeSourceBuffers_.length = 0; // If there is only one source buffer, then it will always be active and audio will
+ // be disabled based on the codec of the source buffer
+
+ if (_this.sourceBuffers.length === 1) {
+ var sourceBuffer = _this.sourceBuffers[0];
+ sourceBuffer.appendAudioInitSegment_ = true;
+ sourceBuffer.audioDisabled_ = !sourceBuffer.audioCodec_;
+
+ _this.activeSourceBuffers_.push(sourceBuffer);
+
+ return;
+ } // There are 2 source buffers, a combined (possibly video only) source buffer and
+ // and an audio only source buffer.
+ // By default, the audio in the combined virtual source buffer is enabled
+ // and the audio-only source buffer (if it exists) is disabled.
+
+
+ var disableCombined = false;
+ var disableAudioOnly = true; // TODO: maybe we can store the sourcebuffers on the track objects?
+ // safari may do something like this
+
+ for (var i = 0; i < _this.player_.audioTracks().length; i++) {
+ var track = _this.player_.audioTracks()[i];
+
+ if (track.enabled && track.kind !== 'main') {
+ // The enabled track is an alternate audio track so disable the audio in
+ // the combined source buffer and enable the audio-only source buffer.
+ disableCombined = true;
+ disableAudioOnly = false;
+ break;
+ }
+ }
+
+ _this.sourceBuffers.forEach(function (sourceBuffer, index) {
+ /* eslinst-disable */
+ // TODO once codecs are required, we can switch to using the codecs to determine
+ // what stream is the video stream, rather than relying on videoTracks
+
+ /* eslinst-enable */
+ sourceBuffer.appendAudioInitSegment_ = true;
+
+ if (sourceBuffer.videoCodec_ && sourceBuffer.audioCodec_) {
+ // combined
+ sourceBuffer.audioDisabled_ = disableCombined;
+ } else if (sourceBuffer.videoCodec_ && !sourceBuffer.audioCodec_) {
+ // If the "combined" source buffer is video only, then we do not want
+ // disable the audio-only source buffer (this is mostly for demuxed
+ // audio and video hls)
+ sourceBuffer.audioDisabled_ = true;
+ disableAudioOnly = false;
+ } else if (!sourceBuffer.videoCodec_ && sourceBuffer.audioCodec_) {
+ // audio only
+ // In the case of audio only with alternate audio and disableAudioOnly is true
+ // this means we want to disable the audio on the alternate audio sourcebuffer
+ // but not the main "combined" source buffer. The "combined" source buffer is
+ // always at index 0, so this ensures audio won't be disabled in both source
+ // buffers.
+ sourceBuffer.audioDisabled_ = index ? disableAudioOnly : !disableAudioOnly;
+
+ if (sourceBuffer.audioDisabled_) {
+ return;
+ }
+ }
+
+ _this.activeSourceBuffers_.push(sourceBuffer);
+ });
+ };
+
+ _this.onPlayerMediachange_ = function () {
+ _this.sourceBuffers.forEach(function (sourceBuffer) {
+ sourceBuffer.appendAudioInitSegment_ = true;
+ });
+ };
+
+ _this.onHlsReset_ = function () {
+ _this.sourceBuffers.forEach(function (sourceBuffer) {
+ if (sourceBuffer.transmuxer_) {
+ sourceBuffer.transmuxer_.postMessage({
+ action: 'resetCaptions'
+ });
+ }
+ });
+ };
+
+ _this.onHlsSegmentTimeMapping_ = function (event) {
+ _this.sourceBuffers.forEach(function (buffer) {
+ return buffer.timeMapping_ = event.mapping;
+ });
+ }; // Re-emit MediaSource events on the polyfill
+
+
+ ['sourceopen', 'sourceclose', 'sourceended'].forEach(function (eventName) {
+ this.nativeMediaSource_.addEventListener(eventName, this.trigger.bind(this));
+ }, _this); // capture the associated player when the MediaSource is
+ // successfully attached
+
+ _this.on('sourceopen', function (event) {
+ // Get the player this MediaSource is attached to
+ var video = document.querySelector('[src="' + _this.url_ + '"]');
+
+ if (!video) {
+ return;
+ }
+
+ _this.player_ = videojs$1(video.parentNode);
+
+ if (!_this.player_) {
+ return;
+ } // hls-reset is fired by videojs.Hls on to the tech after the main SegmentLoader
+ // resets its state and flushes the buffer
+
+
+ _this.player_.tech_.on('hls-reset', _this.onHlsReset_); // hls-segment-time-mapping is fired by videojs.Hls on to the tech after the main
+ // SegmentLoader inspects an MTS segment and has an accurate stream to display
+ // time mapping
+
+
+ _this.player_.tech_.on('hls-segment-time-mapping', _this.onHlsSegmentTimeMapping_);
+
+ if (_this.player_.audioTracks && _this.player_.audioTracks()) {
+ _this.player_.audioTracks().on('change', _this.updateActiveSourceBuffers_);
+
+ _this.player_.audioTracks().on('addtrack', _this.updateActiveSourceBuffers_);
+
+ _this.player_.audioTracks().on('removetrack', _this.updateActiveSourceBuffers_);
+ }
+
+ _this.player_.on('mediachange', _this.onPlayerMediachange_);
+ });
+
+ _this.on('sourceended', function (event) {
+ var duration = durationOfVideo(_this.duration);
+
+ for (var i = 0; i < _this.sourceBuffers.length; i++) {
+ var sourcebuffer = _this.sourceBuffers[i];
+ var cues = sourcebuffer.metadataTrack_ && sourcebuffer.metadataTrack_.cues;
+
+ if (cues && cues.length) {
+ cues[cues.length - 1].endTime = duration;
+ }
+ }
+ }); // explicitly terminate any WebWorkers that were created
+ // by SourceHandlers
+
+
+ _this.on('sourceclose', function (event) {
+ this.sourceBuffers.forEach(function (sourceBuffer) {
+ if (sourceBuffer.transmuxer_) {
+ sourceBuffer.transmuxer_.terminate();
+ }
+ });
+ this.sourceBuffers.length = 0;
+
+ if (!this.player_) {
+ return;
+ }
+
+ if (this.player_.audioTracks && this.player_.audioTracks()) {
+ this.player_.audioTracks().off('change', this.updateActiveSourceBuffers_);
+ this.player_.audioTracks().off('addtrack', this.updateActiveSourceBuffers_);
+ this.player_.audioTracks().off('removetrack', this.updateActiveSourceBuffers_);
+ } // We can only change this if the player hasn't been disposed of yet
+ // because `off` eventually tries to use the el_ property. If it has
+ // been disposed of, then don't worry about it because there are no
+ // event handlers left to unbind anyway
+
+
+ if (this.player_.el_) {
+ this.player_.off('mediachange', this.onPlayerMediachange_);
+ }
+
+ if (this.player_.tech_ && this.player_.tech_.el_) {
+ this.player_.tech_.off('hls-reset', this.onHlsReset_);
+ this.player_.tech_.off('hls-segment-time-mapping', this.onHlsSegmentTimeMapping_);
+ }
+ });
+
+ return _this;
+ }
+ /**
+ * Add a range that that can now be seeked to.
+ *
+ * @param {Double} start where to start the addition
+ * @param {Double} end where to end the addition
+ * @private
+ */
+
+
+ createClass(HtmlMediaSource, [{
+ key: 'addSeekableRange_',
+ value: function addSeekableRange_(start, end) {
+ var error = void 0;
+
+ if (this.duration !== Infinity) {
+ error = new Error('MediaSource.addSeekableRange() can only be invoked ' + 'when the duration is Infinity');
+ error.name = 'InvalidStateError';
+ error.code = 11;
+ throw error;
+ }
+
+ if (end > this.nativeMediaSource_.duration || isNaN(this.nativeMediaSource_.duration)) {
+ this.nativeMediaSource_.duration = end;
+ }
+ }
+ /**
+ * Add a source buffer to the media source.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/addSourceBuffer
+ * @param {String} type the content-type of the content
+ * @return {Object} the created source buffer
+ */
+
+ }, {
+ key: 'addSourceBuffer',
+ value: function addSourceBuffer(type) {
+ var buffer = void 0;
+ var parsedType = parseContentType(type); // Create a VirtualSourceBuffer to transmux MPEG-2 transport
+ // stream segments into fragmented MP4s
+
+ if (/^(video|audio)\/mp2t$/i.test(parsedType.type)) {
+ var codecs = [];
+
+ if (parsedType.parameters && parsedType.parameters.codecs) {
+ codecs = parsedType.parameters.codecs.split(',');
+ codecs = translateLegacyCodecs(codecs);
+ codecs = codecs.filter(function (codec) {
+ return isAudioCodec(codec) || isVideoCodec(codec);
+ });
+ }
+
+ if (codecs.length === 0) {
+ codecs = ['avc1.4d400d', 'mp4a.40.2'];
+ }
+
+ buffer = new VirtualSourceBuffer(this, codecs);
+
+ if (this.sourceBuffers.length !== 0) {
+ // If another VirtualSourceBuffer already exists, then we are creating a
+ // SourceBuffer for an alternate audio track and therefore we know that
+ // the source has both an audio and video track.
+ // That means we should trigger the manual creation of the real
+ // SourceBuffers instead of waiting for the transmuxer to return data
+ this.sourceBuffers[0].createRealSourceBuffers_();
+ buffer.createRealSourceBuffers_(); // Automatically disable the audio on the first source buffer if
+ // a second source buffer is ever created
+
+ this.sourceBuffers[0].audioDisabled_ = true;
+ }
+ } else {
+ // delegate to the native implementation
+ buffer = this.nativeMediaSource_.addSourceBuffer(type);
+ }
+
+ this.sourceBuffers.push(buffer);
+ return buffer;
+ }
+ }]);
+ return HtmlMediaSource;
+}(videojs$1.EventTarget);
+/**
+ * @file videojs-contrib-media-sources.js
+ */
+
+
+var urlCount = 0; // ------------
+// Media Source
+// ------------
+// store references to the media sources so they can be connected
+// to a video element (a swf object)
+// TODO: can we store this somewhere local to this module?
+
+videojs$1.mediaSources = {};
+/**
+ * Provide a method for a swf object to notify JS that a
+ * media source is now open.
+ *
+ * @param {String} msObjectURL string referencing the MSE Object URL
+ * @param {String} swfId the swf id
+ */
+
+var open = function open(msObjectURL, swfId) {
+ var mediaSource = videojs$1.mediaSources[msObjectURL];
+
+ if (mediaSource) {
+ mediaSource.trigger({
+ type: 'sourceopen',
+ swfId: swfId
+ });
+ } else {
+ throw new Error('Media Source not found (Video.js)');
+ }
+};
+/**
+ * Check to see if the native MediaSource object exists and supports
+ * an MP4 container with both H.264 video and AAC-LC audio.
+ *
+ * @return {Boolean} if native media sources are supported
+ */
+
+
+var supportsNativeMediaSources = function supportsNativeMediaSources() {
+ return !!window$1.MediaSource && !!window$1.MediaSource.isTypeSupported && window$1.MediaSource.isTypeSupported('video/mp4;codecs="avc1.4d400d,mp4a.40.2"');
+};
+/**
+ * An emulation of the MediaSource API so that we can support
+ * native and non-native functionality. returns an instance of
+ * HtmlMediaSource.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/MediaSource
+ */
+
+
+var MediaSource = function MediaSource() {
+ this.MediaSource = {
+ open: open,
+ supportsNativeMediaSources: supportsNativeMediaSources
+ };
+
+ if (supportsNativeMediaSources()) {
+ return new HtmlMediaSource();
+ }
+
+ throw new Error('Cannot use create a virtual MediaSource for this video');
+};
+
+MediaSource.open = open;
+MediaSource.supportsNativeMediaSources = supportsNativeMediaSources;
+/**
+ * A wrapper around the native URL for our MSE object
+ * implementation, this object is exposed under videojs.URL
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/URL/URL
+ */
+
+var URL$1 = {
+ /**
+ * A wrapper around the native createObjectURL for our objects.
+ * This function maps a native or emulated mediaSource to a blob
+ * url so that it can be loaded into video.js
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/URL/createObjectURL
+ * @param {MediaSource} object the object to create a blob url to
+ */
+ createObjectURL: function createObjectURL(object) {
+ var objectUrlPrefix = 'blob:vjs-media-source/';
+ var url = void 0; // use the native MediaSource to generate an object URL
+
+ if (object instanceof HtmlMediaSource) {
+ url = window$1.URL.createObjectURL(object.nativeMediaSource_);
+ object.url_ = url;
+ return url;
+ } // if the object isn't an emulated MediaSource, delegate to the
+ // native implementation
+
+
+ if (!(object instanceof HtmlMediaSource)) {
+ url = window$1.URL.createObjectURL(object);
+ object.url_ = url;
+ return url;
+ } // build a URL that can be used to map back to the emulated
+ // MediaSource
+
+
+ url = objectUrlPrefix + urlCount;
+ urlCount++; // setup the mapping back to object
+
+ videojs$1.mediaSources[url] = object;
+ return url;
+ }
+};
+videojs$1.MediaSource = MediaSource;
+videojs$1.URL = URL$1;
+var EventTarget$1$1 = videojs$1.EventTarget,
+ mergeOptions$2 = videojs$1.mergeOptions;
+/**
+ * Returns a new master manifest that is the result of merging an updated master manifest
+ * into the original version.
+ *
+ * @param {Object} oldMaster
+ * The old parsed mpd object
+ * @param {Object} newMaster
+ * The updated parsed mpd object
+ * @return {Object}
+ * A new object representing the original master manifest with the updated media
+ * playlists merged in
+ */
+
+var updateMaster$1 = function updateMaster$$1(oldMaster, newMaster) {
+ var noChanges = void 0;
+ var update = mergeOptions$2(oldMaster, {
+ // These are top level properties that can be updated
+ duration: newMaster.duration,
+ minimumUpdatePeriod: newMaster.minimumUpdatePeriod
+ }); // First update the playlists in playlist list
+
+ for (var i = 0; i < newMaster.playlists.length; i++) {
+ var playlistUpdate = updateMaster(update, newMaster.playlists[i]);
+
+ if (playlistUpdate) {
+ update = playlistUpdate;
+ } else {
+ noChanges = true;
+ }
+ } // Then update media group playlists
+
+
+ forEachMediaGroup(newMaster, function (properties, type, group, label) {
+ if (properties.playlists && properties.playlists.length) {
+ var uri = properties.playlists[0].uri;
+
+ var _playlistUpdate = updateMaster(update, properties.playlists[0]);
+
+ if (_playlistUpdate) {
+ update = _playlistUpdate; // update the playlist reference within media groups
+
+ update.mediaGroups[type][group][label].playlists[0] = update.playlists[uri];
+ noChanges = false;
+ }
+ }
+ });
+
+ if (noChanges) {
+ return null;
+ }
+
+ return update;
+};
+
+var generateSidxKey = function generateSidxKey(sidxInfo) {
+ // should be non-inclusive
+ var sidxByteRangeEnd = sidxInfo.byterange.offset + sidxInfo.byterange.length - 1;
+ return sidxInfo.uri + '-' + sidxInfo.byterange.offset + '-' + sidxByteRangeEnd;
+}; // SIDX should be equivalent if the URI and byteranges of the SIDX match.
+// If the SIDXs have maps, the two maps should match,
+// both `a` and `b` missing SIDXs is considered matching.
+// If `a` or `b` but not both have a map, they aren't matching.
+
+
+var equivalentSidx = function equivalentSidx(a, b) {
+ var neitherMap = Boolean(!a.map && !b.map);
+ var equivalentMap = neitherMap || Boolean(a.map && b.map && a.map.byterange.offset === b.map.byterange.offset && a.map.byterange.length === b.map.byterange.length);
+ return equivalentMap && a.uri === b.uri && a.byterange.offset === b.byterange.offset && a.byterange.length === b.byterange.length;
+}; // exported for testing
+
+
+var compareSidxEntry = function compareSidxEntry(playlists, oldSidxMapping) {
+ var newSidxMapping = {};
+
+ for (var uri in playlists) {
+ var playlist = playlists[uri];
+ var currentSidxInfo = playlist.sidx;
+
+ if (currentSidxInfo) {
+ var key = generateSidxKey(currentSidxInfo);
+
+ if (!oldSidxMapping[key]) {
+ break;
+ }
+
+ var savedSidxInfo = oldSidxMapping[key].sidxInfo;
+
+ if (equivalentSidx(savedSidxInfo, currentSidxInfo)) {
+ newSidxMapping[key] = oldSidxMapping[key];
+ }
+ }
+ }
+
+ return newSidxMapping;
+};
+/**
+ * A function that filters out changed items as they need to be requested separately.
+ *
+ * The method is exported for testing
+ *
+ * @param {Object} masterXml the mpd XML
+ * @param {string} srcUrl the mpd url
+ * @param {Date} clientOffset a time difference between server and client (passed through and not used)
+ * @param {Object} oldSidxMapping the SIDX to compare against
+ */
+
+
+var filterChangedSidxMappings = function filterChangedSidxMappings(masterXml, srcUrl, clientOffset, oldSidxMapping) {
+ // Don't pass current sidx mapping
+ var master = parse(masterXml, {
+ manifestUri: srcUrl,
+ clientOffset: clientOffset
+ });
+ var videoSidx = compareSidxEntry(master.playlists, oldSidxMapping);
+ var mediaGroupSidx = videoSidx;
+ forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {
+ if (properties.playlists && properties.playlists.length) {
+ var playlists = properties.playlists;
+ mediaGroupSidx = mergeOptions$2(mediaGroupSidx, compareSidxEntry(playlists, oldSidxMapping));
+ }
+ });
+ return mediaGroupSidx;
+}; // exported for testing
+
+
+var requestSidx_ = function requestSidx_(sidxRange, playlist, xhr, options, finishProcessingFn) {
+ var sidxInfo = {
+ // resolve the segment URL relative to the playlist
+ uri: resolveManifestRedirect(options.handleManifestRedirects, sidxRange.resolvedUri),
+ // resolvedUri: sidxRange.resolvedUri,
+ byterange: sidxRange.byterange,
+ // the segment's playlist
+ playlist: playlist
+ };
+ var sidxRequestOptions = videojs$1.mergeOptions(sidxInfo, {
+ responseType: 'arraybuffer',
+ headers: segmentXhrHeaders(sidxInfo)
+ });
+ return xhr(sidxRequestOptions, finishProcessingFn);
+};
+
+var DashPlaylistLoader = function (_EventTarget) {
+ inherits(DashPlaylistLoader, _EventTarget); // DashPlaylistLoader must accept either a src url or a playlist because subsequent
+ // playlist loader setups from media groups will expect to be able to pass a playlist
+ // (since there aren't external URLs to media playlists with DASH)
+
+ function DashPlaylistLoader(srcUrlOrPlaylist, hls) {
+ var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+ var masterPlaylistLoader = arguments[3];
+ classCallCheck(this, DashPlaylistLoader);
+
+ var _this = possibleConstructorReturn(this, (DashPlaylistLoader.__proto__ || Object.getPrototypeOf(DashPlaylistLoader)).call(this));
+
+ var _options$withCredenti = options.withCredentials,
+ withCredentials = _options$withCredenti === undefined ? false : _options$withCredenti,
+ _options$handleManife = options.handleManifestRedirects,
+ handleManifestRedirects = _options$handleManife === undefined ? false : _options$handleManife;
+ _this.hls_ = hls;
+ _this.withCredentials = withCredentials;
+ _this.handleManifestRedirects = handleManifestRedirects;
+
+ if (!srcUrlOrPlaylist) {
+ throw new Error('A non-empty playlist URL or playlist is required');
+ } // event naming?
+
+
+ _this.on('minimumUpdatePeriod', function () {
+ _this.refreshXml_();
+ }); // live playlist staleness timeout
+
+
+ _this.on('mediaupdatetimeout', function () {
+ _this.refreshMedia_(_this.media().uri);
+ });
+
+ _this.state = 'HAVE_NOTHING';
+ _this.loadedPlaylists_ = {}; // initialize the loader state
+ // The masterPlaylistLoader will be created with a string
+
+ if (typeof srcUrlOrPlaylist === 'string') {
+ _this.srcUrl = srcUrlOrPlaylist; // TODO: reset sidxMapping between period changes
+ // once multi-period is refactored
+
+ _this.sidxMapping_ = {};
+ return possibleConstructorReturn(_this);
+ }
+
+ _this.setupChildLoader(masterPlaylistLoader, srcUrlOrPlaylist);
+
+ return _this;
+ }
+
+ createClass(DashPlaylistLoader, [{
+ key: 'setupChildLoader',
+ value: function setupChildLoader(masterPlaylistLoader, playlist) {
+ this.masterPlaylistLoader_ = masterPlaylistLoader;
+ this.childPlaylist_ = playlist;
+ }
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.stopRequest();
+ this.loadedPlaylists_ = {};
+ window$1.clearTimeout(this.minimumUpdatePeriodTimeout_);
+ window$1.clearTimeout(this.mediaRequest_);
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ }
+ }, {
+ key: 'hasPendingRequest',
+ value: function hasPendingRequest() {
+ return this.request || this.mediaRequest_;
+ }
+ }, {
+ key: 'stopRequest',
+ value: function stopRequest() {
+ if (this.request) {
+ var oldRequest = this.request;
+ this.request = null;
+ oldRequest.onreadystatechange = null;
+ oldRequest.abort();
+ }
+ }
+ }, {
+ key: 'sidxRequestFinished_',
+ value: function sidxRequestFinished_(playlist, master, startingState, doneFn) {
+ var _this2 = this;
+
+ return function (err, request) {
+ // disposed
+ if (!_this2.request) {
+ return;
+ } // pending request is cleared
+
+
+ _this2.request = null;
+
+ if (err) {
+ _this2.error = {
+ status: request.status,
+ message: 'DASH playlist request error at URL: ' + playlist.uri,
+ response: request.response,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+
+ if (startingState) {
+ _this2.state = startingState;
+ }
+
+ _this2.trigger('error');
+
+ return doneFn(master, null);
+ }
+
+ var bytes = new Uint8Array(request.response);
+ var sidx = mp4Inspector.parseSidx(bytes.subarray(8));
+ return doneFn(master, sidx);
+ };
+ }
+ }, {
+ key: 'media',
+ value: function media(playlist) {
+ var _this3 = this; // getter
+
+
+ if (!playlist) {
+ return this.media_;
+ } // setter
+
+
+ if (this.state === 'HAVE_NOTHING') {
+ throw new Error('Cannot switch media playlist from ' + this.state);
+ }
+
+ var startingState = this.state; // find the playlist object if the target playlist has been specified by URI
+
+ if (typeof playlist === 'string') {
+ if (!this.master.playlists[playlist]) {
+ throw new Error('Unknown playlist URI: ' + playlist);
+ }
+
+ playlist = this.master.playlists[playlist];
+ }
+
+ var mediaChange = !this.media_ || playlist.uri !== this.media_.uri; // switch to previously loaded playlists immediately
+
+ if (mediaChange && this.loadedPlaylists_[playlist.uri] && this.loadedPlaylists_[playlist.uri].endList) {
+ this.state = 'HAVE_METADATA';
+ this.media_ = playlist; // trigger media change if the active media has been updated
+
+ if (mediaChange) {
+ this.trigger('mediachanging');
+ this.trigger('mediachange');
+ }
+
+ return;
+ } // switching to the active playlist is a no-op
+
+
+ if (!mediaChange) {
+ return;
+ } // switching from an already loaded playlist
+
+
+ if (this.media_) {
+ this.trigger('mediachanging');
+ }
+
+ if (!playlist.sidx) {
+ // Continue asynchronously if there is no sidx
+ // wait one tick to allow haveMaster to run first on a child loader
+ this.mediaRequest_ = window$1.setTimeout(this.haveMetadata.bind(this, {
+ startingState: startingState,
+ playlist: playlist
+ }), 0); // exit early and don't do sidx work
+
+ return;
+ } // we have sidx mappings
+
+
+ var oldMaster = void 0;
+ var sidxMapping = void 0; // sidxMapping is used when parsing the masterXml, so store
+ // it on the masterPlaylistLoader
+
+ if (this.masterPlaylistLoader_) {
+ oldMaster = this.masterPlaylistLoader_.master;
+ sidxMapping = this.masterPlaylistLoader_.sidxMapping_;
+ } else {
+ oldMaster = this.master;
+ sidxMapping = this.sidxMapping_;
+ }
+
+ var sidxKey = generateSidxKey(playlist.sidx);
+ sidxMapping[sidxKey] = {
+ sidxInfo: playlist.sidx
+ };
+ this.request = requestSidx_(playlist.sidx, playlist, this.hls_.xhr, {
+ handleManifestRedirects: this.handleManifestRedirects
+ }, this.sidxRequestFinished_(playlist, oldMaster, startingState, function (newMaster, sidx) {
+ if (!newMaster || !sidx) {
+ throw new Error('failed to request sidx');
+ } // update loader's sidxMapping with parsed sidx box
+
+
+ sidxMapping[sidxKey].sidx = sidx; // everything is ready just continue to haveMetadata
+
+ _this3.haveMetadata({
+ startingState: startingState,
+ playlist: newMaster.playlists[playlist.uri]
+ });
+ }));
+ }
+ }, {
+ key: 'haveMetadata',
+ value: function haveMetadata(_ref) {
+ var startingState = _ref.startingState,
+ playlist = _ref.playlist;
+ this.state = 'HAVE_METADATA';
+ this.loadedPlaylists_[playlist.uri] = playlist;
+ this.mediaRequest_ = null; // This will trigger loadedplaylist
+
+ this.refreshMedia_(playlist.uri); // fire loadedmetadata the first time a media playlist is loaded
+ // to resolve setup of media groups
+
+ if (startingState === 'HAVE_MASTER') {
+ this.trigger('loadedmetadata');
+ } else {
+ // trigger media change if the active media has been updated
+ this.trigger('mediachange');
+ }
+ }
+ }, {
+ key: 'pause',
+ value: function pause() {
+ this.stopRequest();
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ window$1.clearTimeout(this.minimumUpdatePeriodTimeout_);
+
+ if (this.state === 'HAVE_NOTHING') {
+ // If we pause the loader before any data has been retrieved, its as if we never
+ // started, so reset to an unstarted state.
+ this.started = false;
+ }
+ }
+ }, {
+ key: 'load',
+ value: function load(isFinalRendition) {
+ var _this4 = this;
+
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ window$1.clearTimeout(this.minimumUpdatePeriodTimeout_);
+ var media = this.media();
+
+ if (isFinalRendition) {
+ var delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;
+ this.mediaUpdateTimeout = window$1.setTimeout(function () {
+ return _this4.load();
+ }, delay);
+ return;
+ } // because the playlists are internal to the manifest, load should either load the
+ // main manifest, or do nothing but trigger an event
+
+
+ if (!this.started) {
+ this.start();
+ return;
+ }
+
+ this.trigger('loadedplaylist');
+ }
+ /**
+ * Parses the master xml string and updates playlist uri references
+ *
+ * @return {Object}
+ * The parsed mpd manifest object
+ */
+
+ }, {
+ key: 'parseMasterXml',
+ value: function parseMasterXml() {
+ var master = parse(this.masterXml_, {
+ manifestUri: this.srcUrl,
+ clientOffset: this.clientOffset_,
+ sidxMapping: this.sidxMapping_
+ });
+ master.uri = this.srcUrl; // Set up phony URIs for the playlists since we won't have external URIs for DASH
+ // but reference playlists by their URI throughout the project
+ // TODO: Should we create the dummy uris in mpd-parser as well (leaning towards yes).
+
+ for (var i = 0; i < master.playlists.length; i++) {
+ var phonyUri = 'placeholder-uri-' + i;
+ master.playlists[i].uri = phonyUri; // set up by URI references
+
+ master.playlists[phonyUri] = master.playlists[i];
+ } // set up phony URIs for the media group playlists since we won't have external
+ // URIs for DASH but reference playlists by their URI throughout the project
+
+
+ forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {
+ if (properties.playlists && properties.playlists.length) {
+ var _phonyUri = 'placeholder-uri-' + mediaType + '-' + groupKey + '-' + labelKey;
+
+ properties.playlists[0].uri = _phonyUri; // setup URI references
+
+ master.playlists[_phonyUri] = properties.playlists[0];
+ }
+ });
+ setupMediaPlaylists(master);
+ resolveMediaGroupUris(master);
+ return master;
+ }
+ }, {
+ key: 'start',
+ value: function start() {
+ var _this5 = this;
+
+ this.started = true; // We don't need to request the master manifest again
+ // Call this asynchronously to match the xhr request behavior below
+
+ if (this.masterPlaylistLoader_) {
+ this.mediaRequest_ = window$1.setTimeout(this.haveMaster_.bind(this), 0);
+ return;
+ } // request the specified URL
+
+
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this5.request) {
+ return;
+ } // clear the loader's request reference
+
+
+ _this5.request = null;
+
+ if (error) {
+ _this5.error = {
+ status: req.status,
+ message: 'DASH playlist request error at URL: ' + _this5.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+
+ if (_this5.state === 'HAVE_NOTHING') {
+ _this5.started = false;
+ }
+
+ return _this5.trigger('error');
+ }
+
+ _this5.masterXml_ = req.responseText;
+
+ if (req.responseHeaders && req.responseHeaders.date) {
+ _this5.masterLoaded_ = Date.parse(req.responseHeaders.date);
+ } else {
+ _this5.masterLoaded_ = Date.now();
+ }
+
+ _this5.srcUrl = resolveManifestRedirect(_this5.handleManifestRedirects, _this5.srcUrl, req);
+
+ _this5.syncClientServerClock_(_this5.onClientServerClockSync_.bind(_this5));
+ });
+ }
+ /**
+ * Parses the master xml for UTCTiming node to sync the client clock to the server
+ * clock. If the UTCTiming node requires a HEAD or GET request, that request is made.
+ *
+ * @param {Function} done
+ * Function to call when clock sync has completed
+ */
+
+ }, {
+ key: 'syncClientServerClock_',
+ value: function syncClientServerClock_(done) {
+ var _this6 = this;
+
+ var utcTiming = parseUTCTiming(this.masterXml_); // No UTCTiming element found in the mpd. Use Date header from mpd request as the
+ // server clock
+
+ if (utcTiming === null) {
+ this.clientOffset_ = this.masterLoaded_ - Date.now();
+ return done();
+ }
+
+ if (utcTiming.method === 'DIRECT') {
+ this.clientOffset_ = utcTiming.value - Date.now();
+ return done();
+ }
+
+ this.request = this.hls_.xhr({
+ uri: resolveUrl(this.srcUrl, utcTiming.value),
+ method: utcTiming.method,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this6.request) {
+ return;
+ }
+
+ if (error) {
+ // sync request failed, fall back to using date header from mpd
+ // TODO: log warning
+ _this6.clientOffset_ = _this6.masterLoaded_ - Date.now();
+ return done();
+ }
+
+ var serverTime = void 0;
+
+ if (utcTiming.method === 'HEAD') {
+ if (!req.responseHeaders || !req.responseHeaders.date) {
+ // expected date header not preset, fall back to using date header from mpd
+ // TODO: log warning
+ serverTime = _this6.masterLoaded_;
+ } else {
+ serverTime = Date.parse(req.responseHeaders.date);
+ }
+ } else {
+ serverTime = Date.parse(req.responseText);
+ }
+
+ _this6.clientOffset_ = serverTime - Date.now();
+ done();
+ });
+ }
+ }, {
+ key: 'haveMaster_',
+ value: function haveMaster_() {
+ this.state = 'HAVE_MASTER'; // clear media request
+
+ this.mediaRequest_ = null;
+
+ if (!this.masterPlaylistLoader_) {
+ this.master = this.parseMasterXml(); // We have the master playlist at this point, so
+ // trigger this to allow MasterPlaylistController
+ // to make an initial playlist selection
+
+ this.trigger('loadedplaylist');
+ } else if (!this.media_) {
+ // no media playlist was specifically selected so select
+ // the one the child playlist loader was created with
+ this.media(this.childPlaylist_);
+ }
+ }
+ /**
+ * Handler for after client/server clock synchronization has happened. Sets up
+ * xml refresh timer if specificed by the manifest.
+ */
+
+ }, {
+ key: 'onClientServerClockSync_',
+ value: function onClientServerClockSync_() {
+ var _this7 = this;
+
+ this.haveMaster_();
+
+ if (!this.hasPendingRequest() && !this.media_) {
+ this.media(this.master.playlists[0]);
+ } // TODO: minimumUpdatePeriod can have a value of 0. Currently the manifest will not
+ // be refreshed when this is the case. The inter-op guide says that when the
+ // minimumUpdatePeriod is 0, the manifest should outline all currently available
+ // segments, but future segments may require an update. I think a good solution
+ // would be to update the manifest at the same rate that the media playlists
+ // are "refreshed", i.e. every targetDuration.
+
+
+ if (this.master && this.master.minimumUpdatePeriod) {
+ this.minimumUpdatePeriodTimeout_ = window$1.setTimeout(function () {
+ _this7.trigger('minimumUpdatePeriod');
+ }, this.master.minimumUpdatePeriod);
+ }
+ }
+ /**
+ * Sends request to refresh the master xml and updates the parsed master manifest
+ * TODO: Does the client offset need to be recalculated when the xml is refreshed?
+ */
+
+ }, {
+ key: 'refreshXml_',
+ value: function refreshXml_() {
+ var _this8 = this; // The srcUrl here *may* need to pass through handleManifestsRedirects when
+ // sidx is implemented
+
+
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this8.request) {
+ return;
+ } // clear the loader's request reference
+
+
+ _this8.request = null;
+
+ if (error) {
+ _this8.error = {
+ status: req.status,
+ message: 'DASH playlist request error at URL: ' + _this8.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+
+ if (_this8.state === 'HAVE_NOTHING') {
+ _this8.started = false;
+ }
+
+ return _this8.trigger('error');
+ }
+
+ _this8.masterXml_ = req.responseText; // This will filter out updated sidx info from the mapping
+
+ _this8.sidxMapping_ = filterChangedSidxMappings(_this8.masterXml_, _this8.srcUrl, _this8.clientOffset_, _this8.sidxMapping_);
+
+ var master = _this8.parseMasterXml();
+
+ var updatedMaster = updateMaster$1(_this8.master, master);
+
+ var currentSidxInfo = _this8.media().sidx;
+
+ if (updatedMaster) {
+ if (currentSidxInfo) {
+ var sidxKey = generateSidxKey(currentSidxInfo); // the sidx was updated, so the previous mapping was removed
+
+ if (!_this8.sidxMapping_[sidxKey]) {
+ var playlist = _this8.media();
+
+ _this8.request = requestSidx_(playlist.sidx, playlist, _this8.hls_.xhr, {
+ handleManifestRedirects: _this8.handleManifestRedirects
+ }, _this8.sidxRequestFinished_(playlist, master, _this8.state, function (newMaster, sidx) {
+ if (!newMaster || !sidx) {
+ throw new Error('failed to request sidx on minimumUpdatePeriod');
+ } // update loader's sidxMapping with parsed sidx box
+
+
+ _this8.sidxMapping_[sidxKey].sidx = sidx;
+ _this8.minimumUpdatePeriodTimeout_ = window$1.setTimeout(function () {
+ _this8.trigger('minimumUpdatePeriod');
+ }, _this8.master.minimumUpdatePeriod); // TODO: do we need to reload the current playlist?
+
+ _this8.refreshMedia_(_this8.media().uri);
+
+ return;
+ }));
+ }
+ } else {
+ _this8.master = updatedMaster;
+ }
+ }
+
+ _this8.minimumUpdatePeriodTimeout_ = window$1.setTimeout(function () {
+ _this8.trigger('minimumUpdatePeriod');
+ }, _this8.master.minimumUpdatePeriod);
+ });
+ }
+ /**
+ * Refreshes the media playlist by re-parsing the master xml and updating playlist
+ * references. If this is an alternate loader, the updated parsed manifest is retrieved
+ * from the master loader.
+ */
+
+ }, {
+ key: 'refreshMedia_',
+ value: function refreshMedia_(mediaUri) {
+ var _this9 = this;
+
+ if (!mediaUri) {
+ throw new Error('refreshMedia_ must take a media uri');
+ }
+
+ var oldMaster = void 0;
+ var newMaster = void 0;
+
+ if (this.masterPlaylistLoader_) {
+ oldMaster = this.masterPlaylistLoader_.master;
+ newMaster = this.masterPlaylistLoader_.parseMasterXml();
+ } else {
+ oldMaster = this.master;
+ newMaster = this.parseMasterXml();
+ }
+
+ var updatedMaster = updateMaster$1(oldMaster, newMaster);
+
+ if (updatedMaster) {
+ if (this.masterPlaylistLoader_) {
+ this.masterPlaylistLoader_.master = updatedMaster;
+ } else {
+ this.master = updatedMaster;
+ }
+
+ this.media_ = updatedMaster.playlists[mediaUri];
+ } else {
+ this.media_ = newMaster.playlists[mediaUri];
+ this.trigger('playlistunchanged');
+ }
+
+ if (!this.media().endList) {
+ this.mediaUpdateTimeout = window$1.setTimeout(function () {
+ _this9.trigger('mediaupdatetimeout');
+ }, refreshDelay(this.media(), !!updatedMaster));
+ }
+
+ this.trigger('loadedplaylist');
+ }
+ }]);
+ return DashPlaylistLoader;
+}(EventTarget$1$1);
+
+var logger = function logger(source) {
+ if (videojs$1.log.debug) {
+ return videojs$1.log.debug.bind(videojs$1, 'VHS:', source + ' >');
+ }
+
+ return function () {};
+};
+
+function noop() {}
+/**
+ * @file source-updater.js
+ */
+
+/**
+ * A queue of callbacks to be serialized and applied when a
+ * MediaSource and its associated SourceBuffers are not in the
+ * updating state. It is used by the segment loader to update the
+ * underlying SourceBuffers when new data is loaded, for instance.
+ *
+ * @class SourceUpdater
+ * @param {MediaSource} mediaSource the MediaSource to create the
+ * SourceBuffer from
+ * @param {String} mimeType the desired MIME type of the underlying
+ * SourceBuffer
+ * @param {Object} sourceBufferEmitter an event emitter that fires when a source buffer is
+ * added to the media source
+ */
+
+
+var SourceUpdater = function () {
+ function SourceUpdater(mediaSource, mimeType, type, sourceBufferEmitter) {
+ classCallCheck(this, SourceUpdater);
+ this.callbacks_ = [];
+ this.pendingCallback_ = null;
+ this.timestampOffset_ = 0;
+ this.mediaSource = mediaSource;
+ this.processedAppend_ = false;
+ this.type_ = type;
+ this.mimeType_ = mimeType;
+ this.logger_ = logger('SourceUpdater[' + type + '][' + mimeType + ']');
+
+ if (mediaSource.readyState === 'closed') {
+ mediaSource.addEventListener('sourceopen', this.createSourceBuffer_.bind(this, mimeType, sourceBufferEmitter));
+ } else {
+ this.createSourceBuffer_(mimeType, sourceBufferEmitter);
+ }
+ }
+
+ createClass(SourceUpdater, [{
+ key: 'createSourceBuffer_',
+ value: function createSourceBuffer_(mimeType, sourceBufferEmitter) {
+ var _this = this;
+
+ this.sourceBuffer_ = this.mediaSource.addSourceBuffer(mimeType);
+ this.logger_('created SourceBuffer');
+
+ if (sourceBufferEmitter) {
+ sourceBufferEmitter.trigger('sourcebufferadded');
+
+ if (this.mediaSource.sourceBuffers.length < 2) {
+ // There's another source buffer we must wait for before we can start updating
+ // our own (or else we can get into a bad state, i.e., appending video/audio data
+ // before the other video/audio source buffer is available and leading to a video
+ // or audio only buffer).
+ sourceBufferEmitter.on('sourcebufferadded', function () {
+ _this.start_();
+ });
+ return;
+ }
+ }
+
+ this.start_();
+ }
+ }, {
+ key: 'start_',
+ value: function start_() {
+ var _this2 = this;
+
+ this.started_ = true; // run completion handlers and process callbacks as updateend
+ // events fire
+
+ this.onUpdateendCallback_ = function () {
+ var pendingCallback = _this2.pendingCallback_;
+ _this2.pendingCallback_ = null;
+ _this2.sourceBuffer_.removing = false;
+
+ _this2.logger_('buffered [' + printableRange(_this2.buffered()) + ']');
+
+ if (pendingCallback) {
+ pendingCallback();
+ }
+
+ _this2.runCallback_();
+ };
+
+ this.sourceBuffer_.addEventListener('updateend', this.onUpdateendCallback_);
+ this.runCallback_();
+ }
+ /**
+ * Aborts the current segment and resets the segment parser.
+ *
+ * @param {Function} done function to call when done
+ * @see http://w3c.github.io/media-source/#widl-SourceBuffer-abort-void
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort(done) {
+ var _this3 = this;
+
+ if (this.processedAppend_) {
+ this.queueCallback_(function () {
+ _this3.sourceBuffer_.abort();
+ }, done);
+ }
+ }
+ /**
+ * Queue an update to append an ArrayBuffer.
+ *
+ * @param {ArrayBuffer} bytes
+ * @param {Function} done the function to call when done
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-appendBuffer-void-ArrayBuffer-data
+ */
+
+ }, {
+ key: 'appendBuffer',
+ value: function appendBuffer(config, done) {
+ var _this4 = this;
+
+ this.processedAppend_ = true;
+ this.queueCallback_(function () {
+ if (config.videoSegmentTimingInfoCallback) {
+ _this4.sourceBuffer_.addEventListener('videoSegmentTimingInfo', config.videoSegmentTimingInfoCallback);
+ }
+
+ _this4.sourceBuffer_.appendBuffer(config.bytes);
+ }, function () {
+ if (config.videoSegmentTimingInfoCallback) {
+ _this4.sourceBuffer_.removeEventListener('videoSegmentTimingInfo', config.videoSegmentTimingInfoCallback);
+ }
+
+ done();
+ });
+ }
+ /**
+ * Indicates what TimeRanges are buffered in the managed SourceBuffer.
+ *
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-buffered
+ */
+
+ }, {
+ key: 'buffered',
+ value: function buffered() {
+ if (!this.sourceBuffer_) {
+ return videojs$1.createTimeRanges();
+ }
+
+ return this.sourceBuffer_.buffered;
+ }
+ /**
+ * Queue an update to remove a time range from the buffer.
+ *
+ * @param {Number} start where to start the removal
+ * @param {Number} end where to end the removal
+ * @param {Function} [done=noop] optional callback to be executed when the remove
+ * operation is complete
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ var _this5 = this;
+
+ var done = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : noop;
+
+ if (this.processedAppend_) {
+ this.queueCallback_(function () {
+ _this5.logger_('remove [' + start + ' => ' + end + ']');
+
+ _this5.sourceBuffer_.removing = true;
+
+ _this5.sourceBuffer_.remove(start, end);
+ }, done);
+ }
+ }
+ /**
+ * Whether the underlying sourceBuffer is updating or not
+ *
+ * @return {Boolean} the updating status of the SourceBuffer
+ */
+
+ }, {
+ key: 'updating',
+ value: function updating() {
+ // we are updating if the sourcebuffer is updating or
+ return !this.sourceBuffer_ || this.sourceBuffer_.updating || // if we have a pending callback that is not our internal noop
+ !!this.pendingCallback_ && this.pendingCallback_ !== noop;
+ }
+ /**
+ * Set/get the timestampoffset on the SourceBuffer
+ *
+ * @return {Number} the timestamp offset
+ */
+
+ }, {
+ key: 'timestampOffset',
+ value: function timestampOffset(offset) {
+ var _this6 = this;
+
+ if (typeof offset !== 'undefined') {
+ this.queueCallback_(function () {
+ _this6.sourceBuffer_.timestampOffset = offset;
+
+ _this6.runCallback_();
+ });
+ this.timestampOffset_ = offset;
+ }
+
+ return this.timestampOffset_;
+ }
+ /**
+ * Queue a callback to run
+ */
+
+ }, {
+ key: 'queueCallback_',
+ value: function queueCallback_(callback, done) {
+ this.callbacks_.push([callback.bind(this), done]);
+ this.runCallback_();
+ }
+ /**
+ * Run a queued callback
+ */
+
+ }, {
+ key: 'runCallback_',
+ value: function runCallback_() {
+ var callbacks = void 0;
+
+ if (!this.updating() && this.callbacks_.length && this.started_) {
+ callbacks = this.callbacks_.shift();
+ this.pendingCallback_ = callbacks[1];
+ callbacks[0]();
+ }
+ }
+ /**
+ * dispose of the source updater and the underlying sourceBuffer
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ var _this7 = this;
+
+ var disposeFn = function disposeFn() {
+ if (_this7.sourceBuffer_ && _this7.mediaSource.readyState === 'open') {
+ _this7.sourceBuffer_.abort();
+ }
+
+ _this7.sourceBuffer_.removeEventListener('updateend', disposeFn);
+ };
+
+ this.sourceBuffer_.removeEventListener('updateend', this.onUpdateendCallback_);
+
+ if (this.sourceBuffer_.removing) {
+ this.sourceBuffer_.addEventListener('updateend', disposeFn);
+ } else {
+ disposeFn();
+ }
+ }
+ }]);
+ return SourceUpdater;
+}();
+
+var Config = {
+ GOAL_BUFFER_LENGTH: 30,
+ MAX_GOAL_BUFFER_LENGTH: 60,
+ GOAL_BUFFER_LENGTH_RATE: 1,
+ // 0.5 MB/s
+ INITIAL_BANDWIDTH: 4194304,
+ // A fudge factor to apply to advertised playlist bitrates to account for
+ // temporary flucations in client bandwidth
+ BANDWIDTH_VARIANCE: 1.2,
+ // How much of the buffer must be filled before we consider upswitching
+ BUFFER_LOW_WATER_LINE: 0,
+ MAX_BUFFER_LOW_WATER_LINE: 30,
+ BUFFER_LOW_WATER_LINE_RATE: 1
+};
+var REQUEST_ERRORS = {
+ FAILURE: 2,
+ TIMEOUT: -101,
+ ABORTED: -102
+};
+/**
+ * Abort all requests
+ *
+ * @param {Object} activeXhrs - an object that tracks all XHR requests
+ */
+
+var abortAll = function abortAll(activeXhrs) {
+ activeXhrs.forEach(function (xhr) {
+ xhr.abort();
+ });
+};
+/**
+ * Gather important bandwidth stats once a request has completed
+ *
+ * @param {Object} request - the XHR request from which to gather stats
+ */
+
+
+var getRequestStats = function getRequestStats(request) {
+ return {
+ bandwidth: request.bandwidth,
+ bytesReceived: request.bytesReceived || 0,
+ roundTripTime: request.roundTripTime || 0
+ };
+};
+/**
+ * If possible gather bandwidth stats as a request is in
+ * progress
+ *
+ * @param {Event} progressEvent - an event object from an XHR's progress event
+ */
+
+
+var getProgressStats = function getProgressStats(progressEvent) {
+ var request = progressEvent.target;
+ var roundTripTime = Date.now() - request.requestTime;
+ var stats = {
+ bandwidth: Infinity,
+ bytesReceived: 0,
+ roundTripTime: roundTripTime || 0
+ };
+ stats.bytesReceived = progressEvent.loaded; // This can result in Infinity if stats.roundTripTime is 0 but that is ok
+ // because we should only use bandwidth stats on progress to determine when
+ // abort a request early due to insufficient bandwidth
+
+ stats.bandwidth = Math.floor(stats.bytesReceived / stats.roundTripTime * 8 * 1000);
+ return stats;
+};
+/**
+ * Handle all error conditions in one place and return an object
+ * with all the information
+ *
+ * @param {Error|null} error - if non-null signals an error occured with the XHR
+ * @param {Object} request - the XHR request that possibly generated the error
+ */
+
+
+var handleErrors = function handleErrors(error, request) {
+ if (request.timedout) {
+ return {
+ status: request.status,
+ message: 'HLS request timed-out at URL: ' + request.uri,
+ code: REQUEST_ERRORS.TIMEOUT,
+ xhr: request
+ };
+ }
+
+ if (request.aborted) {
+ return {
+ status: request.status,
+ message: 'HLS request aborted at URL: ' + request.uri,
+ code: REQUEST_ERRORS.ABORTED,
+ xhr: request
+ };
+ }
+
+ if (error) {
+ return {
+ status: request.status,
+ message: 'HLS request errored at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ };
+ }
+
+ return null;
+};
+/**
+ * Handle responses for key data and convert the key data to the correct format
+ * for the decryption step later
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+
+
+var handleKeyResponse = function handleKeyResponse(segment, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ if (response.byteLength !== 16) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Invalid HLS key at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ var view = new DataView(response);
+ segment.key.bytes = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]);
+ return finishProcessingFn(null, segment);
+ };
+};
+/**
+ * Handle init-segment responses
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+
+
+var handleInitSegmentResponse = function handleInitSegmentResponse(segment, captionParser, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ } // stop processing if received empty content
+
+
+ if (response.byteLength === 0) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Empty HLS segment content at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ segment.map.bytes = new Uint8Array(request.response); // Initialize CaptionParser if it hasn't been yet
+
+ if (captionParser && !captionParser.isInitialized()) {
+ captionParser.init();
+ }
+
+ segment.map.timescales = mp4probe.timescale(segment.map.bytes);
+ segment.map.videoTrackIds = mp4probe.videoTrackIds(segment.map.bytes);
+ return finishProcessingFn(null, segment);
+ };
+};
+/**
+ * Response handler for segment-requests being sure to set the correct
+ * property depending on whether the segment is encryped or not
+ * Also records and keeps track of stats that are used for ABR purposes
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+
+
+var handleSegmentResponse = function handleSegmentResponse(segment, captionParser, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+ var parsed = void 0;
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ } // stop processing if received empty content
+
+
+ if (response.byteLength === 0) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Empty HLS segment content at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ segment.stats = getRequestStats(request);
+
+ if (segment.key) {
+ segment.encryptedBytes = new Uint8Array(request.response);
+ } else {
+ segment.bytes = new Uint8Array(request.response);
+ } // This is likely an FMP4 and has the init segment.
+ // Run through the CaptionParser in case there are captions.
+
+
+ if (captionParser && segment.map && segment.map.bytes) {
+ // Initialize CaptionParser if it hasn't been yet
+ if (!captionParser.isInitialized()) {
+ captionParser.init();
+ }
+
+ parsed = captionParser.parse(segment.bytes, segment.map.videoTrackIds, segment.map.timescales);
+
+ if (parsed && parsed.captions) {
+ segment.captionStreams = parsed.captionStreams;
+ segment.fmp4Captions = parsed.captions;
+ }
+ }
+
+ return finishProcessingFn(null, segment);
+ };
+};
+/**
+ * Decrypt the segment via the decryption web worker
+ *
+ * @param {WebWorker} decrypter - a WebWorker interface to AES-128 decryption routines
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} doneFn - a callback that is executed after decryption has completed
+ */
+
+
+var decryptSegment = function decryptSegment(decrypter, segment, doneFn) {
+ var decryptionHandler = function decryptionHandler(event) {
+ if (event.data.source === segment.requestId) {
+ decrypter.removeEventListener('message', decryptionHandler);
+ var decrypted = event.data.decrypted;
+ segment.bytes = new Uint8Array(decrypted.bytes, decrypted.byteOffset, decrypted.byteLength);
+ return doneFn(null, segment);
+ }
+ };
+
+ decrypter.addEventListener('message', decryptionHandler);
+ var keyBytes = void 0;
+
+ if (segment.key.bytes.slice) {
+ keyBytes = segment.key.bytes.slice();
+ } else {
+ keyBytes = new Uint32Array(Array.prototype.slice.call(segment.key.bytes));
+ } // this is an encrypted segment
+ // incrementally decrypt the segment
+
+
+ decrypter.postMessage(createTransferableMessage({
+ source: segment.requestId,
+ encrypted: segment.encryptedBytes,
+ key: keyBytes,
+ iv: segment.key.iv
+ }), [segment.encryptedBytes.buffer, keyBytes.buffer]);
+};
+/**
+ * This function waits for all XHRs to finish (with either success or failure)
+ * before continueing processing via it's callback. The function gathers errors
+ * from each request into a single errors array so that the error status for
+ * each request can be examined later.
+ *
+ * @param {Object} activeXhrs - an object that tracks all XHR requests
+ * @param {WebWorker} decrypter - a WebWorker interface to AES-128 decryption routines
+ * @param {Function} doneFn - a callback that is executed after all resources have been
+ * downloaded and any decryption completed
+ */
+
+
+var waitForCompletion = function waitForCompletion(activeXhrs, decrypter, doneFn) {
+ var count = 0;
+ var didError = false;
+ return function (error, segment) {
+ if (didError) {
+ return;
+ }
+
+ if (error) {
+ didError = true; // If there are errors, we have to abort any outstanding requests
+
+ abortAll(activeXhrs); // Even though the requests above are aborted, and in theory we could wait until we
+ // handle the aborted events from those requests, there are some cases where we may
+ // never get an aborted event. For instance, if the network connection is lost and
+ // there were two requests, the first may have triggered an error immediately, while
+ // the second request remains unsent. In that case, the aborted algorithm will not
+ // trigger an abort: see https://xhr.spec.whatwg.org/#the-abort()-method
+ //
+ // We also can't rely on the ready state of the XHR, since the request that
+ // triggered the connection error may also show as a ready state of 0 (unsent).
+ // Therefore, we have to finish this group of requests immediately after the first
+ // seen error.
+
+ return doneFn(error, segment);
+ }
+
+ count += 1;
+
+ if (count === activeXhrs.length) {
+ // Keep track of when *all* of the requests have completed
+ segment.endOfAllRequests = Date.now();
+
+ if (segment.encryptedBytes) {
+ return decryptSegment(decrypter, segment, doneFn);
+ } // Otherwise, everything is ready just continue
+
+
+ return doneFn(null, segment);
+ }
+ };
+};
+/**
+ * Simple progress event callback handler that gathers some stats before
+ * executing a provided callback with the `segment` object
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} progressFn - a callback that is executed each time a progress event
+ * is received
+ * @param {Event} event - the progress event object from XMLHttpRequest
+ */
+
+
+var handleProgress = function handleProgress(segment, progressFn) {
+ return function (event) {
+ segment.stats = videojs$1.mergeOptions(segment.stats, getProgressStats(event)); // record the time that we receive the first byte of data
+
+ if (!segment.stats.firstBytesReceivedAt && segment.stats.bytesReceived) {
+ segment.stats.firstBytesReceivedAt = Date.now();
+ }
+
+ return progressFn(event, segment);
+ };
+};
+/**
+ * Load all resources and does any processing necessary for a media-segment
+ *
+ * Features:
+ * decrypts the media-segment if it has a key uri and an iv
+ * aborts *all* requests if *any* one request fails
+ *
+ * The segment object, at minimum, has the following format:
+ * {
+ * resolvedUri: String,
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * [key]: {
+ * resolvedUri: String
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * iv: {
+ * bytes: Uint32Array
+ * }
+ * },
+ * [map]: {
+ * resolvedUri: String,
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * [bytes]: Uint8Array
+ * }
+ * }
+ * ...where [name] denotes optional properties
+ *
+ * @param {Function} xhr - an instance of the xhr wrapper in xhr.js
+ * @param {Object} xhrOptions - the base options to provide to all xhr requests
+ * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128
+ * decryption routines
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} progressFn - a callback that receives progress events from the main
+ * segment's xhr request
+ * @param {Function} doneFn - a callback that is executed only once all requests have
+ * succeeded or failed
+ * @returns {Function} a function that, when invoked, immediately aborts all
+ * outstanding requests
+ */
+
+
+var mediaSegmentRequest = function mediaSegmentRequest(xhr, xhrOptions, decryptionWorker, captionParser, segment, progressFn, doneFn) {
+ var activeXhrs = [];
+ var finishProcessingFn = waitForCompletion(activeXhrs, decryptionWorker, doneFn); // optionally, request the decryption key
+
+ if (segment.key && !segment.key.bytes) {
+ var keyRequestOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.key.resolvedUri,
+ responseType: 'arraybuffer'
+ });
+ var keyRequestCallback = handleKeyResponse(segment, finishProcessingFn);
+ var keyXhr = xhr(keyRequestOptions, keyRequestCallback);
+ activeXhrs.push(keyXhr);
+ } // optionally, request the associated media init segment
+
+
+ if (segment.map && !segment.map.bytes) {
+ var initSegmentOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.map.resolvedUri,
+ responseType: 'arraybuffer',
+ headers: segmentXhrHeaders(segment.map)
+ });
+ var initSegmentRequestCallback = handleInitSegmentResponse(segment, captionParser, finishProcessingFn);
+ var initSegmentXhr = xhr(initSegmentOptions, initSegmentRequestCallback);
+ activeXhrs.push(initSegmentXhr);
+ }
+
+ var segmentRequestOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.resolvedUri,
+ responseType: 'arraybuffer',
+ headers: segmentXhrHeaders(segment)
+ });
+ var segmentRequestCallback = handleSegmentResponse(segment, captionParser, finishProcessingFn);
+ var segmentXhr = xhr(segmentRequestOptions, segmentRequestCallback);
+ segmentXhr.addEventListener('progress', handleProgress(segment, progressFn));
+ activeXhrs.push(segmentXhr);
+ return function () {
+ return abortAll(activeXhrs);
+ };
+}; // Utilities
+
+/**
+ * Returns the CSS value for the specified property on an element
+ * using `getComputedStyle`. Firefox has a long-standing issue where
+ * getComputedStyle() may return null when running in an iframe with
+ * `display: none`.
+ *
+ * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+ * @param {HTMLElement} el the htmlelement to work on
+ * @param {string} the proprety to get the style for
+ */
+
+
+var safeGetComputedStyle = function safeGetComputedStyle(el, property) {
+ var result = void 0;
+
+ if (!el) {
+ return '';
+ }
+
+ result = window$1.getComputedStyle(el);
+
+ if (!result) {
+ return '';
+ }
+
+ return result[property];
+};
+/**
+ * Resuable stable sort function
+ *
+ * @param {Playlists} array
+ * @param {Function} sortFn Different comparators
+ * @function stableSort
+ */
+
+
+var stableSort = function stableSort(array, sortFn) {
+ var newArray = array.slice();
+ array.sort(function (left, right) {
+ var cmp = sortFn(left, right);
+
+ if (cmp === 0) {
+ return newArray.indexOf(left) - newArray.indexOf(right);
+ }
+
+ return cmp;
+ });
+};
+/**
+ * A comparator function to sort two playlist object by bandwidth.
+ *
+ * @param {Object} left a media playlist object
+ * @param {Object} right a media playlist object
+ * @return {Number} Greater than zero if the bandwidth attribute of
+ * left is greater than the corresponding attribute of right. Less
+ * than zero if the bandwidth of right is greater than left and
+ * exactly zero if the two are equal.
+ */
+
+
+var comparePlaylistBandwidth = function comparePlaylistBandwidth(left, right) {
+ var leftBandwidth = void 0;
+ var rightBandwidth = void 0;
+
+ if (left.attributes.BANDWIDTH) {
+ leftBandwidth = left.attributes.BANDWIDTH;
+ }
+
+ leftBandwidth = leftBandwidth || window$1.Number.MAX_VALUE;
+
+ if (right.attributes.BANDWIDTH) {
+ rightBandwidth = right.attributes.BANDWIDTH;
+ }
+
+ rightBandwidth = rightBandwidth || window$1.Number.MAX_VALUE;
+ return leftBandwidth - rightBandwidth;
+};
+/**
+ * A comparator function to sort two playlist object by resolution (width).
+ * @param {Object} left a media playlist object
+ * @param {Object} right a media playlist object
+ * @return {Number} Greater than zero if the resolution.width attribute of
+ * left is greater than the corresponding attribute of right. Less
+ * than zero if the resolution.width of right is greater than left and
+ * exactly zero if the two are equal.
+ */
+
+
+var comparePlaylistResolution = function comparePlaylistResolution(left, right) {
+ var leftWidth = void 0;
+ var rightWidth = void 0;
+
+ if (left.attributes.RESOLUTION && left.attributes.RESOLUTION.width) {
+ leftWidth = left.attributes.RESOLUTION.width;
+ }
+
+ leftWidth = leftWidth || window$1.Number.MAX_VALUE;
+
+ if (right.attributes.RESOLUTION && right.attributes.RESOLUTION.width) {
+ rightWidth = right.attributes.RESOLUTION.width;
+ }
+
+ rightWidth = rightWidth || window$1.Number.MAX_VALUE; // NOTE - Fallback to bandwidth sort as appropriate in cases where multiple renditions
+ // have the same media dimensions/ resolution
+
+ if (leftWidth === rightWidth && left.attributes.BANDWIDTH && right.attributes.BANDWIDTH) {
+ return left.attributes.BANDWIDTH - right.attributes.BANDWIDTH;
+ }
+
+ return leftWidth - rightWidth;
+};
+/**
+ * Chooses the appropriate media playlist based on bandwidth and player size
+ *
+ * @param {Object} master
+ * Object representation of the master manifest
+ * @param {Number} playerBandwidth
+ * Current calculated bandwidth of the player
+ * @param {Number} playerWidth
+ * Current width of the player element
+ * @param {Number} playerHeight
+ * Current height of the player element
+ * @param {Boolean} limitRenditionByPlayerDimensions
+ * True if the player width and height should be used during the selection, false otherwise
+ * @return {Playlist} the highest bitrate playlist less than the
+ * currently detected bandwidth, accounting for some amount of
+ * bandwidth variance
+ */
+
+
+var simpleSelector = function simpleSelector(master, playerBandwidth, playerWidth, playerHeight, limitRenditionByPlayerDimensions) {
+ // convert the playlists to an intermediary representation to make comparisons easier
+ var sortedPlaylistReps = master.playlists.map(function (playlist) {
+ var width = void 0;
+ var height = void 0;
+ var bandwidth = void 0;
+ width = playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.width;
+ height = playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height;
+ bandwidth = playlist.attributes.BANDWIDTH;
+ bandwidth = bandwidth || window$1.Number.MAX_VALUE;
+ return {
+ bandwidth: bandwidth,
+ width: width,
+ height: height,
+ playlist: playlist
+ };
+ });
+ stableSort(sortedPlaylistReps, function (left, right) {
+ return left.bandwidth - right.bandwidth;
+ }); // filter out any playlists that have been excluded due to
+ // incompatible configurations
+
+ sortedPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return !Playlist.isIncompatible(rep.playlist);
+ }); // filter out any playlists that have been disabled manually through the representations
+ // api or blacklisted temporarily due to playback errors.
+
+ var enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return Playlist.isEnabled(rep.playlist);
+ });
+
+ if (!enabledPlaylistReps.length) {
+ // if there are no enabled playlists, then they have all been blacklisted or disabled
+ // by the user through the representations api. In this case, ignore blacklisting and
+ // fallback to what the user wants by using playlists the user has not disabled.
+ enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return !Playlist.isDisabled(rep.playlist);
+ });
+ } // filter out any variant that has greater effective bitrate
+ // than the current estimated bandwidth
+
+
+ var bandwidthPlaylistReps = enabledPlaylistReps.filter(function (rep) {
+ return rep.bandwidth * Config.BANDWIDTH_VARIANCE < playerBandwidth;
+ });
+ var highestRemainingBandwidthRep = bandwidthPlaylistReps[bandwidthPlaylistReps.length - 1]; // get all of the renditions with the same (highest) bandwidth
+ // and then taking the very first element
+
+ var bandwidthBestRep = bandwidthPlaylistReps.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0]; // if we're not going to limit renditions by player size, make an early decision.
+
+ if (limitRenditionByPlayerDimensions === false) {
+ var _chosenRep = bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];
+
+ return _chosenRep ? _chosenRep.playlist : null;
+ } // filter out playlists without resolution information
+
+
+ var haveResolution = bandwidthPlaylistReps.filter(function (rep) {
+ return rep.width && rep.height;
+ }); // sort variants by resolution
+
+ stableSort(haveResolution, function (left, right) {
+ return left.width - right.width;
+ }); // if we have the exact resolution as the player use it
+
+ var resolutionBestRepList = haveResolution.filter(function (rep) {
+ return rep.width === playerWidth && rep.height === playerHeight;
+ });
+ highestRemainingBandwidthRep = resolutionBestRepList[resolutionBestRepList.length - 1]; // ensure that we pick the highest bandwidth variant that have exact resolution
+
+ var resolutionBestRep = resolutionBestRepList.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+ var resolutionPlusOneList = void 0;
+ var resolutionPlusOneSmallest = void 0;
+ var resolutionPlusOneRep = void 0; // find the smallest variant that is larger than the player
+ // if there is no match of exact resolution
+
+ if (!resolutionBestRep) {
+ resolutionPlusOneList = haveResolution.filter(function (rep) {
+ return rep.width > playerWidth || rep.height > playerHeight;
+ }); // find all the variants have the same smallest resolution
+
+ resolutionPlusOneSmallest = resolutionPlusOneList.filter(function (rep) {
+ return rep.width === resolutionPlusOneList[0].width && rep.height === resolutionPlusOneList[0].height;
+ }); // ensure that we also pick the highest bandwidth variant that
+ // is just-larger-than the video player
+
+ highestRemainingBandwidthRep = resolutionPlusOneSmallest[resolutionPlusOneSmallest.length - 1];
+ resolutionPlusOneRep = resolutionPlusOneSmallest.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+ } // fallback chain of variants
+
+
+ var chosenRep = resolutionPlusOneRep || resolutionBestRep || bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];
+ return chosenRep ? chosenRep.playlist : null;
+}; // Playlist Selectors
+
+/**
+ * Chooses the appropriate media playlist based on the most recent
+ * bandwidth estimate and the player size.
+ *
+ * Expects to be called within the context of an instance of HlsHandler
+ *
+ * @return {Playlist} the highest bitrate playlist less than the
+ * currently detected bandwidth, accounting for some amount of
+ * bandwidth variance
+ */
+
+
+var lastBandwidthSelector = function lastBandwidthSelector() {
+ return simpleSelector(this.playlists.master, this.systemBandwidth, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10), parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10), this.limitRenditionByPlayerDimensions);
+};
+/**
+ * Chooses the appropriate media playlist based on the potential to rebuffer
+ *
+ * @param {Object} settings
+ * Object of information required to use this selector
+ * @param {Object} settings.master
+ * Object representation of the master manifest
+ * @param {Number} settings.currentTime
+ * The current time of the player
+ * @param {Number} settings.bandwidth
+ * Current measured bandwidth
+ * @param {Number} settings.duration
+ * Duration of the media
+ * @param {Number} settings.segmentDuration
+ * Segment duration to be used in round trip time calculations
+ * @param {Number} settings.timeUntilRebuffer
+ * Time left in seconds until the player has to rebuffer
+ * @param {Number} settings.currentTimeline
+ * The current timeline segments are being loaded from
+ * @param {SyncController} settings.syncController
+ * SyncController for determining if we have a sync point for a given playlist
+ * @return {Object|null}
+ * {Object} return.playlist
+ * The highest bandwidth playlist with the least amount of rebuffering
+ * {Number} return.rebufferingImpact
+ * The amount of time in seconds switching to this playlist will rebuffer. A
+ * negative value means that switching will cause zero rebuffering.
+ */
+
+
+var minRebufferMaxBandwidthSelector = function minRebufferMaxBandwidthSelector(settings) {
+ var master = settings.master,
+ currentTime = settings.currentTime,
+ bandwidth = settings.bandwidth,
+ duration$$1 = settings.duration,
+ segmentDuration = settings.segmentDuration,
+ timeUntilRebuffer = settings.timeUntilRebuffer,
+ currentTimeline = settings.currentTimeline,
+ syncController = settings.syncController; // filter out any playlists that have been excluded due to
+ // incompatible configurations
+
+ var compatiblePlaylists = master.playlists.filter(function (playlist) {
+ return !Playlist.isIncompatible(playlist);
+ }); // filter out any playlists that have been disabled manually through the representations
+ // api or blacklisted temporarily due to playback errors.
+
+ var enabledPlaylists = compatiblePlaylists.filter(Playlist.isEnabled);
+
+ if (!enabledPlaylists.length) {
+ // if there are no enabled playlists, then they have all been blacklisted or disabled
+ // by the user through the representations api. In this case, ignore blacklisting and
+ // fallback to what the user wants by using playlists the user has not disabled.
+ enabledPlaylists = compatiblePlaylists.filter(function (playlist) {
+ return !Playlist.isDisabled(playlist);
+ });
+ }
+
+ var bandwidthPlaylists = enabledPlaylists.filter(Playlist.hasAttribute.bind(null, 'BANDWIDTH'));
+ var rebufferingEstimates = bandwidthPlaylists.map(function (playlist) {
+ var syncPoint = syncController.getSyncPoint(playlist, duration$$1, currentTimeline, currentTime); // If there is no sync point for this playlist, switching to it will require a
+ // sync request first. This will double the request time
+
+ var numRequests = syncPoint ? 1 : 2;
+ var requestTimeEstimate = Playlist.estimateSegmentRequestTime(segmentDuration, bandwidth, playlist);
+ var rebufferingImpact = requestTimeEstimate * numRequests - timeUntilRebuffer;
+ return {
+ playlist: playlist,
+ rebufferingImpact: rebufferingImpact
+ };
+ });
+ var noRebufferingPlaylists = rebufferingEstimates.filter(function (estimate) {
+ return estimate.rebufferingImpact <= 0;
+ }); // Sort by bandwidth DESC
+
+ stableSort(noRebufferingPlaylists, function (a, b) {
+ return comparePlaylistBandwidth(b.playlist, a.playlist);
+ });
+
+ if (noRebufferingPlaylists.length) {
+ return noRebufferingPlaylists[0];
+ }
+
+ stableSort(rebufferingEstimates, function (a, b) {
+ return a.rebufferingImpact - b.rebufferingImpact;
+ });
+ return rebufferingEstimates[0] || null;
+};
+/**
+ * Chooses the appropriate media playlist, which in this case is the lowest bitrate
+ * one with video. If no renditions with video exist, return the lowest audio rendition.
+ *
+ * Expects to be called within the context of an instance of HlsHandler
+ *
+ * @return {Object|null}
+ * {Object} return.playlist
+ * The lowest bitrate playlist that contains a video codec. If no such rendition
+ * exists pick the lowest audio rendition.
+ */
+
+
+var lowestBitrateCompatibleVariantSelector = function lowestBitrateCompatibleVariantSelector() {
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations or playback errors
+ var playlists = this.playlists.master.playlists.filter(Playlist.isEnabled); // Sort ascending by bitrate
+
+ stableSort(playlists, function (a, b) {
+ return comparePlaylistBandwidth(a, b);
+ }); // Parse and assume that playlists with no video codec have no video
+ // (this is not necessarily true, although it is generally true).
+ //
+ // If an entire manifest has no valid videos everything will get filtered
+ // out.
+
+ var playlistsWithVideo = playlists.filter(function (playlist) {
+ return parseCodecs(playlist.attributes.CODECS).videoCodec;
+ });
+ return playlistsWithVideo[0] || null;
+};
+/**
+ * Create captions text tracks on video.js if they do not exist
+ *
+ * @param {Object} inbandTextTracks a reference to current inbandTextTracks
+ * @param {Object} tech the video.js tech
+ * @param {Object} captionStreams the caption streams to create
+ * @private
+ */
+
+
+var createCaptionsTrackIfNotExists = function createCaptionsTrackIfNotExists(inbandTextTracks, tech, captionStreams) {
+ for (var trackId in captionStreams) {
+ if (!inbandTextTracks[trackId]) {
+ tech.trigger({
+ type: 'usage',
+ name: 'hls-608'
+ });
+ var track = tech.textTracks().getTrackById(trackId);
+
+ if (track) {
+ // Resuse an existing track with a CC# id because this was
+ // very likely created by videojs-contrib-hls from information
+ // in the m3u8 for us to use
+ inbandTextTracks[trackId] = track;
+ } else {
+ // Otherwise, create a track with the default `CC#` label and
+ // without a language
+ inbandTextTracks[trackId] = tech.addRemoteTextTrack({
+ kind: 'captions',
+ id: trackId,
+ label: trackId
+ }, false).track;
+ }
+ }
+ }
+};
+
+var addCaptionData = function addCaptionData(_ref) {
+ var inbandTextTracks = _ref.inbandTextTracks,
+ captionArray = _ref.captionArray,
+ timestampOffset = _ref.timestampOffset;
+
+ if (!captionArray) {
+ return;
+ }
+
+ var Cue = window.WebKitDataCue || window.VTTCue;
+ captionArray.forEach(function (caption) {
+ var track = caption.stream;
+ var startTime = caption.startTime;
+ var endTime = caption.endTime;
+
+ if (!inbandTextTracks[track]) {
+ return;
+ }
+
+ startTime += timestampOffset;
+ endTime += timestampOffset;
+ inbandTextTracks[track].addCue(new Cue(startTime, endTime, caption.text));
+ });
+};
+/**
+ * @file segment-loader.js
+ */
+// in ms
+
+
+var CHECK_BUFFER_DELAY = 500;
+/**
+ * Determines if we should call endOfStream on the media source based
+ * on the state of the buffer or if appened segment was the final
+ * segment in the playlist.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Object} mediaSource the MediaSource object
+ * @param {Number} segmentIndex the index of segment we last appended
+ * @returns {Boolean} do we need to call endOfStream on the MediaSource
+ */
+
+var detectEndOfStream = function detectEndOfStream(playlist, mediaSource, segmentIndex) {
+ if (!playlist || !mediaSource) {
+ return false;
+ }
+
+ var segments = playlist.segments; // determine a few boolean values to help make the branch below easier
+ // to read
+
+ var appendedLastSegment = segmentIndex === segments.length; // if we've buffered to the end of the video, we need to call endOfStream
+ // so that MediaSources can trigger the `ended` event when it runs out of
+ // buffered data instead of waiting for me
+
+ return playlist.endList && mediaSource.readyState === 'open' && appendedLastSegment;
+};
+
+var finite = function finite(num) {
+ return typeof num === 'number' && isFinite(num);
+};
+
+var illegalMediaSwitch = function illegalMediaSwitch(loaderType, startingMedia, newSegmentMedia) {
+ // Although these checks should most likely cover non 'main' types, for now it narrows
+ // the scope of our checks.
+ if (loaderType !== 'main' || !startingMedia || !newSegmentMedia) {
+ return null;
+ }
+
+ if (!newSegmentMedia.containsAudio && !newSegmentMedia.containsVideo) {
+ return 'Neither audio nor video found in segment.';
+ }
+
+ if (startingMedia.containsVideo && !newSegmentMedia.containsVideo) {
+ return 'Only audio found in segment when we expected video.' + ' We can\'t switch to audio only from a stream that had video.' + ' To get rid of this message, please add codec information to the manifest.';
+ }
+
+ if (!startingMedia.containsVideo && newSegmentMedia.containsVideo) {
+ return 'Video found in segment when we expected only audio.' + ' We can\'t switch to a stream with video from an audio only stream.' + ' To get rid of this message, please add codec information to the manifest.';
+ }
+
+ return null;
+};
+/**
+ * Calculates a time value that is safe to remove from the back buffer without interupting
+ * playback.
+ *
+ * @param {TimeRange} seekable
+ * The current seekable range
+ * @param {Number} currentTime
+ * The current time of the player
+ * @param {Number} targetDuration
+ * The target duration of the current playlist
+ * @return {Number}
+ * Time that is safe to remove from the back buffer without interupting playback
+ */
+
+
+var safeBackBufferTrimTime = function safeBackBufferTrimTime(seekable$$1, currentTime, targetDuration) {
+ var removeToTime = void 0;
+
+ if (seekable$$1.length && seekable$$1.start(0) > 0 && seekable$$1.start(0) < currentTime) {
+ // If we have a seekable range use that as the limit for what can be removed safely
+ removeToTime = seekable$$1.start(0);
+ } else {
+ // otherwise remove anything older than 30 seconds before the current play head
+ removeToTime = currentTime - 30;
+ } // Don't allow removing from the buffer within target duration of current time
+ // to avoid the possibility of removing the GOP currently being played which could
+ // cause playback stalls.
+
+
+ return Math.min(removeToTime, currentTime - targetDuration);
+};
+
+var segmentInfoString = function segmentInfoString(segmentInfo) {
+ var _segmentInfo$segment = segmentInfo.segment,
+ start = _segmentInfo$segment.start,
+ end = _segmentInfo$segment.end,
+ _segmentInfo$playlist = segmentInfo.playlist,
+ seq = _segmentInfo$playlist.mediaSequence,
+ id = _segmentInfo$playlist.id,
+ _segmentInfo$playlist2 = _segmentInfo$playlist.segments,
+ segments = _segmentInfo$playlist2 === undefined ? [] : _segmentInfo$playlist2,
+ index = segmentInfo.mediaIndex,
+ timeline = segmentInfo.timeline;
+ return ['appending [' + index + '] of [' + seq + ', ' + (seq + segments.length) + '] from playlist [' + id + ']', '[' + start + ' => ' + end + '] in timeline [' + timeline + ']'].join(' ');
+};
+/**
+ * An object that manages segment loading and appending.
+ *
+ * @class SegmentLoader
+ * @param {Object} options required and optional options
+ * @extends videojs.EventTarget
+ */
+
+
+var SegmentLoader = function (_videojs$EventTarget) {
+ inherits(SegmentLoader, _videojs$EventTarget);
+
+ function SegmentLoader(settings) {
+ classCallCheck(this, SegmentLoader); // check pre-conditions
+
+ var _this = possibleConstructorReturn(this, (SegmentLoader.__proto__ || Object.getPrototypeOf(SegmentLoader)).call(this));
+
+ if (!settings) {
+ throw new TypeError('Initialization settings are required');
+ }
+
+ if (typeof settings.currentTime !== 'function') {
+ throw new TypeError('No currentTime getter specified');
+ }
+
+ if (!settings.mediaSource) {
+ throw new TypeError('No MediaSource specified');
+ } // public properties
+
+
+ _this.bandwidth = settings.bandwidth;
+ _this.throughput = {
+ rate: 0,
+ count: 0
+ };
+ _this.roundTrip = NaN;
+
+ _this.resetStats_();
+
+ _this.mediaIndex = null; // private settings
+
+ _this.hasPlayed_ = settings.hasPlayed;
+ _this.currentTime_ = settings.currentTime;
+ _this.seekable_ = settings.seekable;
+ _this.seeking_ = settings.seeking;
+ _this.duration_ = settings.duration;
+ _this.mediaSource_ = settings.mediaSource;
+ _this.hls_ = settings.hls;
+ _this.loaderType_ = settings.loaderType;
+ _this.startingMedia_ = void 0;
+ _this.segmentMetadataTrack_ = settings.segmentMetadataTrack;
+ _this.goalBufferLength_ = settings.goalBufferLength;
+ _this.sourceType_ = settings.sourceType;
+ _this.inbandTextTracks_ = settings.inbandTextTracks;
+ _this.state_ = 'INIT'; // private instance variables
+
+ _this.checkBufferTimeout_ = null;
+ _this.error_ = void 0;
+ _this.currentTimeline_ = -1;
+ _this.pendingSegment_ = null;
+ _this.mimeType_ = null;
+ _this.sourceUpdater_ = null;
+ _this.xhrOptions_ = null; // Fragmented mp4 playback
+
+ _this.activeInitSegmentId_ = null;
+ _this.initSegments_ = {}; // HLSe playback
+
+ _this.cacheEncryptionKeys_ = settings.cacheEncryptionKeys;
+ _this.keyCache_ = {}; // Fmp4 CaptionParser
+
+ if (_this.loaderType_ === 'main') {
+ _this.captionParser_ = new CaptionParser();
+ } else {
+ _this.captionParser_ = null;
+ }
+
+ _this.decrypter_ = settings.decrypter; // Manages the tracking and generation of sync-points, mappings
+ // between a time in the display time and a segment index within
+ // a playlist
+
+ _this.syncController_ = settings.syncController;
+ _this.syncPoint_ = {
+ segmentIndex: 0,
+ time: 0
+ };
+
+ _this.syncController_.on('syncinfoupdate', function () {
+ return _this.trigger('syncinfoupdate');
+ });
+
+ _this.mediaSource_.addEventListener('sourceopen', function () {
+ return _this.ended_ = false;
+ }); // ...for determining the fetch location
+
+
+ _this.fetchAtBuffer_ = false;
+ _this.logger_ = logger('SegmentLoader[' + _this.loaderType_ + ']');
+ Object.defineProperty(_this, 'state', {
+ get: function get$$1() {
+ return this.state_;
+ },
+ set: function set$$1(newState) {
+ if (newState !== this.state_) {
+ this.logger_(this.state_ + ' -> ' + newState);
+ this.state_ = newState;
+ }
+ }
+ });
+ return _this;
+ }
+ /**
+ * reset all of our media stats
+ *
+ * @private
+ */
+
+
+ createClass(SegmentLoader, [{
+ key: 'resetStats_',
+ value: function resetStats_() {
+ this.mediaBytesTransferred = 0;
+ this.mediaRequests = 0;
+ this.mediaRequestsAborted = 0;
+ this.mediaRequestsTimedout = 0;
+ this.mediaRequestsErrored = 0;
+ this.mediaTransferDuration = 0;
+ this.mediaSecondsLoaded = 0;
+ }
+ /**
+ * dispose of the SegmentLoader and reset to the default state
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.state = 'DISPOSED';
+ this.pause();
+ this.abort_();
+
+ if (this.sourceUpdater_) {
+ this.sourceUpdater_.dispose();
+ }
+
+ this.resetStats_();
+
+ if (this.captionParser_) {
+ this.captionParser_.reset();
+ }
+ }
+ /**
+ * abort anything that is currently doing on with the SegmentLoader
+ * and reset to a default state
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort() {
+ if (this.state !== 'WAITING') {
+ if (this.pendingSegment_) {
+ this.pendingSegment_ = null;
+ }
+
+ return;
+ }
+
+ this.abort_(); // We aborted the requests we were waiting on, so reset the loader's state to READY
+ // since we are no longer "waiting" on any requests. XHR callback is not always run
+ // when the request is aborted. This will prevent the loader from being stuck in the
+ // WAITING state indefinitely.
+
+ this.state = 'READY'; // don't wait for buffer check timeouts to begin fetching the
+ // next segment
+
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ }
+ /**
+ * abort all pending xhr requests and null any pending segements
+ *
+ * @private
+ */
+
+ }, {
+ key: 'abort_',
+ value: function abort_() {
+ if (this.pendingSegment_) {
+ this.pendingSegment_.abortRequests();
+ } // clear out the segment being processed
+
+
+ this.pendingSegment_ = null;
+ }
+ /**
+ * set an error on the segment loader and null out any pending segements
+ *
+ * @param {Error} error the error to set on the SegmentLoader
+ * @return {Error} the error that was set or that is currently set
+ */
+
+ }, {
+ key: 'error',
+ value: function error(_error) {
+ if (typeof _error !== 'undefined') {
+ this.error_ = _error;
+ }
+
+ this.pendingSegment_ = null;
+ return this.error_;
+ }
+ }, {
+ key: 'endOfStream',
+ value: function endOfStream() {
+ this.ended_ = true;
+ this.pause();
+ this.trigger('ended');
+ }
+ /**
+ * Indicates which time ranges are buffered
+ *
+ * @return {TimeRange}
+ * TimeRange object representing the current buffered ranges
+ */
+
+ }, {
+ key: 'buffered_',
+ value: function buffered_() {
+ if (!this.sourceUpdater_) {
+ return videojs$1.createTimeRanges();
+ }
+
+ return this.sourceUpdater_.buffered();
+ }
+ /**
+ * Gets and sets init segment for the provided map
+ *
+ * @param {Object} map
+ * The map object representing the init segment to get or set
+ * @param {Boolean=} set
+ * If true, the init segment for the provided map should be saved
+ * @return {Object}
+ * map object for desired init segment
+ */
+
+ }, {
+ key: 'initSegment',
+ value: function initSegment(map) {
+ var set$$1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!map) {
+ return null;
+ }
+
+ var id = initSegmentId(map);
+ var storedMap = this.initSegments_[id];
+
+ if (set$$1 && !storedMap && map.bytes) {
+ this.initSegments_[id] = storedMap = {
+ resolvedUri: map.resolvedUri,
+ byterange: map.byterange,
+ bytes: map.bytes,
+ timescales: map.timescales,
+ videoTrackIds: map.videoTrackIds
+ };
+ }
+
+ return storedMap || map;
+ }
+ /**
+ * Gets and sets key for the provided key
+ *
+ * @param {Object} key
+ * The key object representing the key to get or set
+ * @param {Boolean=} set
+ * If true, the key for the provided key should be saved
+ * @return {Object}
+ * Key object for desired key
+ */
+
+ }, {
+ key: 'segmentKey',
+ value: function segmentKey(key) {
+ var set$$1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!key) {
+ return null;
+ }
+
+ var id = segmentKeyId(key);
+ var storedKey = this.keyCache_[id]; // TODO: We should use the HTTP Expires header to invalidate our cache per
+ // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-6.2.3
+
+ if (this.cacheEncryptionKeys_ && set$$1 && !storedKey && key.bytes) {
+ this.keyCache_[id] = storedKey = {
+ resolvedUri: key.resolvedUri,
+ bytes: key.bytes
+ };
+ }
+
+ var result = {
+ resolvedUri: (storedKey || key).resolvedUri
+ };
+
+ if (storedKey) {
+ result.bytes = storedKey.bytes;
+ }
+
+ return result;
+ }
+ /**
+ * Returns true if all configuration required for loading is present, otherwise false.
+ *
+ * @return {Boolean} True if the all configuration is ready for loading
+ * @private
+ */
+
+ }, {
+ key: 'couldBeginLoading_',
+ value: function couldBeginLoading_() {
+ return this.playlist_ && ( // the source updater is created when init_ is called, so either having a
+ // source updater or being in the INIT state with a mimeType is enough
+ // to say we have all the needed configuration to start loading.
+ this.sourceUpdater_ || this.mimeType_ && this.state === 'INIT') && !this.paused();
+ }
+ /**
+ * load a playlist and start to fill the buffer
+ */
+
+ }, {
+ key: 'load',
+ value: function load() {
+ // un-pause
+ this.monitorBuffer_(); // if we don't have a playlist yet, keep waiting for one to be
+ // specified
+
+ if (!this.playlist_) {
+ return;
+ } // not sure if this is the best place for this
+
+
+ this.syncController_.setDateTimeMapping(this.playlist_); // if all the configuration is ready, initialize and begin loading
+
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ return this.init_();
+ } // if we're in the middle of processing a segment already, don't
+ // kick off an additional segment request
+
+
+ if (!this.couldBeginLoading_() || this.state !== 'READY' && this.state !== 'INIT') {
+ return;
+ }
+
+ this.state = 'READY';
+ }
+ /**
+ * Once all the starting parameters have been specified, begin
+ * operation. This method should only be invoked from the INIT
+ * state.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'init_',
+ value: function init_() {
+ this.state = 'READY';
+ this.sourceUpdater_ = new SourceUpdater(this.mediaSource_, this.mimeType_, this.loaderType_, this.sourceBufferEmitter_);
+ this.resetEverything();
+ return this.monitorBuffer_();
+ }
+ /**
+ * set a playlist on the segment loader
+ *
+ * @param {PlaylistLoader} media the playlist to set on the segment loader
+ */
+
+ }, {
+ key: 'playlist',
+ value: function playlist(newPlaylist) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ if (!newPlaylist) {
+ return;
+ }
+
+ var oldPlaylist = this.playlist_;
+ var segmentInfo = this.pendingSegment_;
+ this.playlist_ = newPlaylist;
+ this.xhrOptions_ = options; // when we haven't started playing yet, the start of a live playlist
+ // is always our zero-time so force a sync update each time the playlist
+ // is refreshed from the server
+
+ if (!this.hasPlayed_()) {
+ newPlaylist.syncInfo = {
+ mediaSequence: newPlaylist.mediaSequence,
+ time: 0
+ };
+ }
+
+ var oldId = null;
+
+ if (oldPlaylist) {
+ if (oldPlaylist.id) {
+ oldId = oldPlaylist.id;
+ } else if (oldPlaylist.uri) {
+ oldId = oldPlaylist.uri;
+ }
+ }
+
+ this.logger_('playlist update [' + oldId + ' => ' + (newPlaylist.id || newPlaylist.uri) + ']'); // in VOD, this is always a rendition switch (or we updated our syncInfo above)
+ // in LIVE, we always want to update with new playlists (including refreshes)
+
+ this.trigger('syncinfoupdate'); // if we were unpaused but waiting for a playlist, start
+ // buffering now
+
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ return this.init_();
+ }
+
+ if (!oldPlaylist || oldPlaylist.uri !== newPlaylist.uri) {
+ if (this.mediaIndex !== null) {
+ // we must "resync" the segment loader when we switch renditions and
+ // the segment loader is already synced to the previous rendition
+ this.resyncLoader();
+ } // the rest of this function depends on `oldPlaylist` being defined
+
+
+ return;
+ } // we reloaded the same playlist so we are in a live scenario
+ // and we will likely need to adjust the mediaIndex
+
+
+ var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;
+ this.logger_('live window shift [' + mediaSequenceDiff + ']'); // update the mediaIndex on the SegmentLoader
+ // this is important because we can abort a request and this value must be
+ // equal to the last appended mediaIndex
+
+ if (this.mediaIndex !== null) {
+ this.mediaIndex -= mediaSequenceDiff;
+ } // update the mediaIndex on the SegmentInfo object
+ // this is important because we will update this.mediaIndex with this value
+ // in `handleUpdateEnd_` after the segment has been successfully appended
+
+
+ if (segmentInfo) {
+ segmentInfo.mediaIndex -= mediaSequenceDiff; // we need to update the referenced segment so that timing information is
+ // saved for the new playlist's segment, however, if the segment fell off the
+ // playlist, we can leave the old reference and just lose the timing info
+
+ if (segmentInfo.mediaIndex >= 0) {
+ segmentInfo.segment = newPlaylist.segments[segmentInfo.mediaIndex];
+ }
+ }
+
+ this.syncController_.saveExpiredSegmentInfo(oldPlaylist, newPlaylist);
+ }
+ /**
+ * Prevent the loader from fetching additional segments. If there
+ * is a segment request outstanding, it will finish processing
+ * before the loader halts. A segment loader can be unpaused by
+ * calling load().
+ */
+
+ }, {
+ key: 'pause',
+ value: function pause() {
+ if (this.checkBufferTimeout_) {
+ window$1.clearTimeout(this.checkBufferTimeout_);
+ this.checkBufferTimeout_ = null;
+ }
+ }
+ /**
+ * Returns whether the segment loader is fetching additional
+ * segments when given the opportunity. This property can be
+ * modified through calls to pause() and load().
+ */
+
+ }, {
+ key: 'paused',
+ value: function paused() {
+ return this.checkBufferTimeout_ === null;
+ }
+ /**
+ * create/set the following mimetype on the SourceBuffer through a
+ * SourceUpdater
+ *
+ * @param {String} mimeType the mime type string to use
+ * @param {Object} sourceBufferEmitter an event emitter that fires when a source buffer
+ * is added to the media source
+ */
+
+ }, {
+ key: 'mimeType',
+ value: function mimeType(_mimeType, sourceBufferEmitter) {
+ if (this.mimeType_) {
+ return;
+ }
+
+ this.mimeType_ = _mimeType;
+ this.sourceBufferEmitter_ = sourceBufferEmitter; // if we were unpaused but waiting for a sourceUpdater, start
+ // buffering now
+
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ this.init_();
+ }
+ }
+ /**
+ * Delete all the buffered data and reset the SegmentLoader
+ * @param {Function} [done] an optional callback to be executed when the remove
+ * operation is complete
+ */
+
+ }, {
+ key: 'resetEverything',
+ value: function resetEverything(done) {
+ this.ended_ = false;
+ this.resetLoader();
+ this.remove(0, this.duration_(), done); // clears fmp4 captions
+
+ if (this.captionParser_) {
+ this.captionParser_.clearAllCaptions();
+ }
+
+ this.trigger('reseteverything');
+ }
+ /**
+ * Force the SegmentLoader to resync and start loading around the currentTime instead
+ * of starting at the end of the buffer
+ *
+ * Useful for fast quality changes
+ */
+
+ }, {
+ key: 'resetLoader',
+ value: function resetLoader() {
+ this.fetchAtBuffer_ = false;
+ this.resyncLoader();
+ }
+ /**
+ * Force the SegmentLoader to restart synchronization and make a conservative guess
+ * before returning to the simple walk-forward method
+ */
+
+ }, {
+ key: 'resyncLoader',
+ value: function resyncLoader() {
+ this.mediaIndex = null;
+ this.syncPoint_ = null;
+ this.abort();
+ }
+ /**
+ * Remove any data in the source buffer between start and end times
+ * @param {Number} start - the start time of the region to remove from the buffer
+ * @param {Number} end - the end time of the region to remove from the buffer
+ * @param {Function} [done] - an optional callback to be executed when the remove
+ * operation is complete
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end, done) {
+ if (this.sourceUpdater_) {
+ this.sourceUpdater_.remove(start, end, done);
+ }
+
+ removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
+
+ if (this.inbandTextTracks_) {
+ for (var id in this.inbandTextTracks_) {
+ removeCuesFromTrack(start, end, this.inbandTextTracks_[id]);
+ }
+ }
+ }
+ /**
+ * (re-)schedule monitorBufferTick_ to run as soon as possible
+ *
+ * @private
+ */
+
+ }, {
+ key: 'monitorBuffer_',
+ value: function monitorBuffer_() {
+ if (this.checkBufferTimeout_) {
+ window$1.clearTimeout(this.checkBufferTimeout_);
+ }
+
+ this.checkBufferTimeout_ = window$1.setTimeout(this.monitorBufferTick_.bind(this), 1);
+ }
+ /**
+ * As long as the SegmentLoader is in the READY state, periodically
+ * invoke fillBuffer_().
+ *
+ * @private
+ */
+
+ }, {
+ key: 'monitorBufferTick_',
+ value: function monitorBufferTick_() {
+ if (this.state === 'READY') {
+ this.fillBuffer_();
+ }
+
+ if (this.checkBufferTimeout_) {
+ window$1.clearTimeout(this.checkBufferTimeout_);
+ }
+
+ this.checkBufferTimeout_ = window$1.setTimeout(this.monitorBufferTick_.bind(this), CHECK_BUFFER_DELAY);
+ }
+ /**
+ * fill the buffer with segements unless the sourceBuffers are
+ * currently updating
+ *
+ * Note: this function should only ever be called by monitorBuffer_
+ * and never directly
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fillBuffer_',
+ value: function fillBuffer_() {
+ if (this.sourceUpdater_.updating()) {
+ return;
+ }
+
+ if (!this.syncPoint_) {
+ this.syncPoint_ = this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());
+ } // see if we need to begin loading immediately
+
+
+ var segmentInfo = this.checkBuffer_(this.buffered_(), this.playlist_, this.mediaIndex, this.hasPlayed_(), this.currentTime_(), this.syncPoint_);
+
+ if (!segmentInfo) {
+ return;
+ }
+
+ if (this.isEndOfStream_(segmentInfo.mediaIndex)) {
+ this.endOfStream();
+ return;
+ }
+
+ if (segmentInfo.mediaIndex === this.playlist_.segments.length - 1 && this.mediaSource_.readyState === 'ended' && !this.seeking_()) {
+ return;
+ } // We will need to change timestampOffset of the sourceBuffer if:
+ // - The segment.timeline !== this.currentTimeline
+ // (we are crossing a discontinuity somehow)
+ // - The "timestampOffset" for the start of this segment is less than
+ // the currently set timestampOffset
+ // Also, clear captions if we are crossing a discontinuity boundary
+ // Previously, we changed the timestampOffset if the start of this segment
+ // is less than the currently set timestampOffset but this isn't wanted
+ // as it can produce bad behavior, especially around long running
+ // live streams
+
+
+ if (segmentInfo.timeline !== this.currentTimeline_) {
+ this.syncController_.reset();
+ segmentInfo.timestampOffset = segmentInfo.startOfSegment;
+
+ if (this.captionParser_) {
+ this.captionParser_.clearAllCaptions();
+ }
+ }
+
+ this.loadSegment_(segmentInfo);
+ }
+ /**
+ * Determines if this segment loader is at the end of it's stream.
+ *
+ * @param {Number} mediaIndex the index of segment we last appended
+ * @param {Object} [playlist=this.playlist_] a media playlist object
+ * @returns {Boolean} true if at end of stream, false otherwise.
+ */
+
+ }, {
+ key: 'isEndOfStream_',
+ value: function isEndOfStream_(mediaIndex) {
+ var playlist = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.playlist_;
+ return detectEndOfStream(playlist, this.mediaSource_, mediaIndex) && !this.sourceUpdater_.updating();
+ }
+ /**
+ * Determines what segment request should be made, given current playback
+ * state.
+ *
+ * @param {TimeRanges} buffered - the state of the buffer
+ * @param {Object} playlist - the playlist object to fetch segments from
+ * @param {Number} mediaIndex - the previous mediaIndex fetched or null
+ * @param {Boolean} hasPlayed - a flag indicating whether we have played or not
+ * @param {Number} currentTime - the playback position in seconds
+ * @param {Object} syncPoint - a segment info object that describes the
+ * @returns {Object} a segment request object that describes the segment to load
+ */
+
+ }, {
+ key: 'checkBuffer_',
+ value: function checkBuffer_(buffered, playlist, mediaIndex, hasPlayed, currentTime, syncPoint) {
+ var lastBufferedEnd = 0;
+ var startOfSegment = void 0;
+
+ if (buffered.length) {
+ lastBufferedEnd = buffered.end(buffered.length - 1);
+ }
+
+ var bufferedTime = Math.max(0, lastBufferedEnd - currentTime);
+
+ if (!playlist.segments.length) {
+ return null;
+ } // if there is plenty of content buffered, and the video has
+ // been played before relax for awhile
+
+
+ if (bufferedTime >= this.goalBufferLength_()) {
+ return null;
+ } // if the video has not yet played once, and we already have
+ // one segment downloaded do nothing
+
+
+ if (!hasPlayed && bufferedTime >= 1) {
+ return null;
+ } // When the syncPoint is null, there is no way of determining a good
+ // conservative segment index to fetch from
+ // The best thing to do here is to get the kind of sync-point data by
+ // making a request
+
+
+ if (syncPoint === null) {
+ mediaIndex = this.getSyncSegmentCandidate_(playlist);
+ return this.generateSegmentInfo_(playlist, mediaIndex, null, true);
+ } // Under normal playback conditions fetching is a simple walk forward
+
+
+ if (mediaIndex !== null) {
+ var segment = playlist.segments[mediaIndex];
+ startOfSegment = lastBufferedEnd;
+ return this.generateSegmentInfo_(playlist, mediaIndex + 1, startOfSegment, false);
+ } // There is a sync-point but the lack of a mediaIndex indicates that
+ // we need to make a good conservative guess about which segment to
+ // fetch
+
+
+ if (this.fetchAtBuffer_) {
+ // Find the segment containing the end of the buffer
+ var mediaSourceInfo = Playlist.getMediaInfoForTime(playlist, lastBufferedEnd, syncPoint.segmentIndex, syncPoint.time);
+ mediaIndex = mediaSourceInfo.mediaIndex;
+ startOfSegment = mediaSourceInfo.startTime;
+ } else {
+ // Find the segment containing currentTime
+ var _mediaSourceInfo = Playlist.getMediaInfoForTime(playlist, currentTime, syncPoint.segmentIndex, syncPoint.time);
+
+ mediaIndex = _mediaSourceInfo.mediaIndex;
+ startOfSegment = _mediaSourceInfo.startTime;
+ }
+
+ return this.generateSegmentInfo_(playlist, mediaIndex, startOfSegment, false);
+ }
+ /**
+ * The segment loader has no recourse except to fetch a segment in the
+ * current playlist and use the internal timestamps in that segment to
+ * generate a syncPoint. This function returns a good candidate index
+ * for that process.
+ *
+ * @param {Object} playlist - the playlist object to look for a
+ * @returns {Number} An index of a segment from the playlist to load
+ */
+
+ }, {
+ key: 'getSyncSegmentCandidate_',
+ value: function getSyncSegmentCandidate_(playlist) {
+ var _this2 = this;
+
+ if (this.currentTimeline_ === -1) {
+ return 0;
+ }
+
+ var segmentIndexArray = playlist.segments.map(function (s, i) {
+ return {
+ timeline: s.timeline,
+ segmentIndex: i
+ };
+ }).filter(function (s) {
+ return s.timeline === _this2.currentTimeline_;
+ });
+
+ if (segmentIndexArray.length) {
+ return segmentIndexArray[Math.min(segmentIndexArray.length - 1, 1)].segmentIndex;
+ }
+
+ return Math.max(playlist.segments.length - 1, 0);
+ }
+ }, {
+ key: 'generateSegmentInfo_',
+ value: function generateSegmentInfo_(playlist, mediaIndex, startOfSegment, isSyncRequest) {
+ if (mediaIndex < 0 || mediaIndex >= playlist.segments.length) {
+ return null;
+ }
+
+ var segment = playlist.segments[mediaIndex];
+ return {
+ requestId: 'segment-loader-' + Math.random(),
+ // resolve the segment URL relative to the playlist
+ uri: segment.resolvedUri,
+ // the segment's mediaIndex at the time it was requested
+ mediaIndex: mediaIndex,
+ // whether or not to update the SegmentLoader's state with this
+ // segment's mediaIndex
+ isSyncRequest: isSyncRequest,
+ startOfSegment: startOfSegment,
+ // the segment's playlist
+ playlist: playlist,
+ // unencrypted bytes of the segment
+ bytes: null,
+ // when a key is defined for this segment, the encrypted bytes
+ encryptedBytes: null,
+ // The target timestampOffset for this segment when we append it
+ // to the source buffer
+ timestampOffset: null,
+ // The timeline that the segment is in
+ timeline: segment.timeline,
+ // The expected duration of the segment in seconds
+ duration: segment.duration,
+ // retain the segment in case the playlist updates while doing an async process
+ segment: segment
+ };
+ }
+ /**
+ * Determines if the network has enough bandwidth to complete the current segment
+ * request in a timely manner. If not, the request will be aborted early and bandwidth
+ * updated to trigger a playlist switch.
+ *
+ * @param {Object} stats
+ * Object containing stats about the request timing and size
+ * @return {Boolean} True if the request was aborted, false otherwise
+ * @private
+ */
+
+ }, {
+ key: 'abortRequestEarly_',
+ value: function abortRequestEarly_(stats) {
+ if (this.hls_.tech_.paused() || // Don't abort if the current playlist is on the lowestEnabledRendition
+ // TODO: Replace using timeout with a boolean indicating whether this playlist is
+ // the lowestEnabledRendition.
+ !this.xhrOptions_.timeout || // Don't abort if we have no bandwidth information to estimate segment sizes
+ !this.playlist_.attributes.BANDWIDTH) {
+ return false;
+ } // Wait at least 1 second since the first byte of data has been received before
+ // using the calculated bandwidth from the progress event to allow the bitrate
+ // to stabilize
+
+
+ if (Date.now() - (stats.firstBytesReceivedAt || Date.now()) < 1000) {
+ return false;
+ }
+
+ var currentTime = this.currentTime_();
+ var measuredBandwidth = stats.bandwidth;
+ var segmentDuration = this.pendingSegment_.duration;
+ var requestTimeRemaining = Playlist.estimateSegmentRequestTime(segmentDuration, measuredBandwidth, this.playlist_, stats.bytesReceived); // Subtract 1 from the timeUntilRebuffer so we still consider an early abort
+ // if we are only left with less than 1 second when the request completes.
+ // A negative timeUntilRebuffering indicates we are already rebuffering
+
+ var timeUntilRebuffer$$1 = timeUntilRebuffer(this.buffered_(), currentTime, this.hls_.tech_.playbackRate()) - 1; // Only consider aborting early if the estimated time to finish the download
+ // is larger than the estimated time until the player runs out of forward buffer
+
+ if (requestTimeRemaining <= timeUntilRebuffer$$1) {
+ return false;
+ }
+
+ var switchCandidate = minRebufferMaxBandwidthSelector({
+ master: this.hls_.playlists.master,
+ currentTime: currentTime,
+ bandwidth: measuredBandwidth,
+ duration: this.duration_(),
+ segmentDuration: segmentDuration,
+ timeUntilRebuffer: timeUntilRebuffer$$1,
+ currentTimeline: this.currentTimeline_,
+ syncController: this.syncController_
+ });
+
+ if (!switchCandidate) {
+ return;
+ }
+
+ var rebufferingImpact = requestTimeRemaining - timeUntilRebuffer$$1;
+ var timeSavedBySwitching = rebufferingImpact - switchCandidate.rebufferingImpact;
+ var minimumTimeSaving = 0.5; // If we are already rebuffering, increase the amount of variance we add to the
+ // potential round trip time of the new request so that we are not too aggressive
+ // with switching to a playlist that might save us a fraction of a second.
+
+ if (timeUntilRebuffer$$1 <= TIME_FUDGE_FACTOR) {
+ minimumTimeSaving = 1;
+ }
+
+ if (!switchCandidate.playlist || switchCandidate.playlist.uri === this.playlist_.uri || timeSavedBySwitching < minimumTimeSaving) {
+ return false;
+ } // set the bandwidth to that of the desired playlist being sure to scale by
+ // BANDWIDTH_VARIANCE and add one so the playlist selector does not exclude it
+ // don't trigger a bandwidthupdate as the bandwidth is artifial
+
+
+ this.bandwidth = switchCandidate.playlist.attributes.BANDWIDTH * Config.BANDWIDTH_VARIANCE + 1;
+ this.abort();
+ this.trigger('earlyabort');
+ return true;
+ }
+ /**
+ * XHR `progress` event handler
+ *
+ * @param {Event}
+ * The XHR `progress` event
+ * @param {Object} simpleSegment
+ * A simplified segment object copy
+ * @private
+ */
+
+ }, {
+ key: 'handleProgress_',
+ value: function handleProgress_(event, simpleSegment) {
+ if (!this.pendingSegment_ || simpleSegment.requestId !== this.pendingSegment_.requestId || this.abortRequestEarly_(simpleSegment.stats)) {
+ return;
+ }
+
+ this.trigger('progress');
+ }
+ /**
+ * load a specific segment from a request into the buffer
+ *
+ * @private
+ */
+
+ }, {
+ key: 'loadSegment_',
+ value: function loadSegment_(segmentInfo) {
+ this.state = 'WAITING';
+ this.pendingSegment_ = segmentInfo;
+ this.trimBackBuffer_(segmentInfo);
+ segmentInfo.abortRequests = mediaSegmentRequest(this.hls_.xhr, this.xhrOptions_, this.decrypter_, this.captionParser_, this.createSimplifiedSegmentObj_(segmentInfo), // progress callback
+ this.handleProgress_.bind(this), this.segmentRequestFinished_.bind(this));
+ }
+ /**
+ * trim the back buffer so that we don't have too much data
+ * in the source buffer
+ *
+ * @private
+ *
+ * @param {Object} segmentInfo - the current segment
+ */
+
+ }, {
+ key: 'trimBackBuffer_',
+ value: function trimBackBuffer_(segmentInfo) {
+ var removeToTime = safeBackBufferTrimTime(this.seekable_(), this.currentTime_(), this.playlist_.targetDuration || 10); // Chrome has a hard limit of 150MB of
+ // buffer and a very conservative "garbage collector"
+ // We manually clear out the old buffer to ensure
+ // we don't trigger the QuotaExceeded error
+ // on the source buffer during subsequent appends
+
+ if (removeToTime > 0) {
+ this.remove(0, removeToTime);
+ }
+ }
+ /**
+ * created a simplified copy of the segment object with just the
+ * information necessary to perform the XHR and decryption
+ *
+ * @private
+ *
+ * @param {Object} segmentInfo - the current segment
+ * @returns {Object} a simplified segment object copy
+ */
+
+ }, {
+ key: 'createSimplifiedSegmentObj_',
+ value: function createSimplifiedSegmentObj_(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var simpleSegment = {
+ resolvedUri: segment.resolvedUri,
+ byterange: segment.byterange,
+ requestId: segmentInfo.requestId
+ };
+
+ if (segment.key) {
+ // if the media sequence is greater than 2^32, the IV will be incorrect
+ // assuming 10s segments, that would be about 1300 years
+ var iv = segment.key.iv || new Uint32Array([0, 0, 0, segmentInfo.mediaIndex + segmentInfo.playlist.mediaSequence]);
+ simpleSegment.key = this.segmentKey(segment.key);
+ simpleSegment.key.iv = iv;
+ }
+
+ if (segment.map) {
+ simpleSegment.map = this.initSegment(segment.map);
+ }
+
+ return simpleSegment;
+ }
+ /**
+ * Handle the callback from the segmentRequest function and set the
+ * associated SegmentLoader state and errors if necessary
+ *
+ * @private
+ */
+
+ }, {
+ key: 'segmentRequestFinished_',
+ value: function segmentRequestFinished_(error, simpleSegment) {
+ // every request counts as a media request even if it has been aborted
+ // or canceled due to a timeout
+ this.mediaRequests += 1;
+
+ if (simpleSegment.stats) {
+ this.mediaBytesTransferred += simpleSegment.stats.bytesReceived;
+ this.mediaTransferDuration += simpleSegment.stats.roundTripTime;
+ } // The request was aborted and the SegmentLoader has already been reset
+
+
+ if (!this.pendingSegment_) {
+ this.mediaRequestsAborted += 1;
+ return;
+ } // the request was aborted and the SegmentLoader has already started
+ // another request. this can happen when the timeout for an aborted
+ // request triggers due to a limitation in the XHR library
+ // do not count this as any sort of request or we risk double-counting
+
+
+ if (simpleSegment.requestId !== this.pendingSegment_.requestId) {
+ return;
+ } // an error occurred from the active pendingSegment_ so reset everything
+
+
+ if (error) {
+ this.pendingSegment_ = null;
+ this.state = 'READY'; // the requests were aborted just record the aborted stat and exit
+ // this is not a true error condition and nothing corrective needs
+ // to be done
+
+ if (error.code === REQUEST_ERRORS.ABORTED) {
+ this.mediaRequestsAborted += 1;
+ return;
+ }
+
+ this.pause(); // the error is really just that at least one of the requests timed-out
+ // set the bandwidth to a very low value and trigger an ABR switch to
+ // take emergency action
+
+ if (error.code === REQUEST_ERRORS.TIMEOUT) {
+ this.mediaRequestsTimedout += 1;
+ this.bandwidth = 1;
+ this.roundTrip = NaN;
+ this.trigger('bandwidthupdate');
+ return;
+ } // if control-flow has arrived here, then the error is real
+ // emit an error event to blacklist the current playlist
+
+
+ this.mediaRequestsErrored += 1;
+ this.error(error);
+ this.trigger('error');
+ return;
+ } // the response was a success so set any bandwidth stats the request
+ // generated for ABR purposes
+
+
+ this.bandwidth = simpleSegment.stats.bandwidth;
+ this.roundTrip = simpleSegment.stats.roundTripTime; // if this request included an initialization segment, save that data
+ // to the initSegment cache
+
+ if (simpleSegment.map) {
+ simpleSegment.map = this.initSegment(simpleSegment.map, true);
+ } // if this request included a segment key, save that data in the cache
+
+
+ if (simpleSegment.key) {
+ this.segmentKey(simpleSegment.key, true);
+ }
+
+ this.processSegmentResponse_(simpleSegment);
+ }
+ /**
+ * Move any important data from the simplified segment object
+ * back to the real segment object for future phases
+ *
+ * @private
+ */
+
+ }, {
+ key: 'processSegmentResponse_',
+ value: function processSegmentResponse_(simpleSegment) {
+ var segmentInfo = this.pendingSegment_;
+ segmentInfo.bytes = simpleSegment.bytes;
+
+ if (simpleSegment.map) {
+ segmentInfo.segment.map.bytes = simpleSegment.map.bytes;
+ }
+
+ segmentInfo.endOfAllRequests = simpleSegment.endOfAllRequests; // This has fmp4 captions, add them to text tracks
+
+ if (simpleSegment.fmp4Captions) {
+ createCaptionsTrackIfNotExists(this.inbandTextTracks_, this.hls_.tech_, simpleSegment.captionStreams);
+ addCaptionData({
+ inbandTextTracks: this.inbandTextTracks_,
+ captionArray: simpleSegment.fmp4Captions,
+ // fmp4s will not have a timestamp offset
+ timestampOffset: 0
+ }); // Reset stored captions since we added parsed
+ // captions to a text track at this point
+
+ if (this.captionParser_) {
+ this.captionParser_.clearParsedCaptions();
+ }
+ }
+
+ this.handleSegment_();
+ }
+ /**
+ * append a decrypted segement to the SourceBuffer through a SourceUpdater
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSegment_',
+ value: function handleSegment_() {
+ var _this3 = this;
+
+ if (!this.pendingSegment_) {
+ this.state = 'READY';
+ return;
+ }
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+ var timingInfo = this.syncController_.probeSegmentInfo(segmentInfo); // When we have our first timing info, determine what media types this loader is
+ // dealing with. Although we're maintaining extra state, it helps to preserve the
+ // separation of segment loader from the actual source buffers.
+
+ if (typeof this.startingMedia_ === 'undefined' && timingInfo && ( // Guard against cases where we're not getting timing info at all until we are
+ // certain that all streams will provide it.
+ timingInfo.containsAudio || timingInfo.containsVideo)) {
+ this.startingMedia_ = {
+ containsAudio: timingInfo.containsAudio,
+ containsVideo: timingInfo.containsVideo
+ };
+ }
+
+ var illegalMediaSwitchError = illegalMediaSwitch(this.loaderType_, this.startingMedia_, timingInfo);
+
+ if (illegalMediaSwitchError) {
+ this.error({
+ message: illegalMediaSwitchError,
+ blacklistDuration: Infinity
+ });
+ this.trigger('error');
+ return;
+ }
+
+ if (segmentInfo.isSyncRequest) {
+ this.trigger('syncinfoupdate');
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+ return;
+ }
+
+ if (segmentInfo.timestampOffset !== null && segmentInfo.timestampOffset !== this.sourceUpdater_.timestampOffset()) {
+ // Subtract any difference between the PTS and DTS times of the first frame
+ // from the timeStampOffset (which currently equals the buffered.end) to prevent
+ // creating any gaps in the buffer
+ if (timingInfo && timingInfo.segmentTimestampInfo) {
+ var ptsStartTime = timingInfo.segmentTimestampInfo[0].ptsTime;
+ var dtsStartTime = timingInfo.segmentTimestampInfo[0].dtsTime;
+ segmentInfo.timestampOffset -= ptsStartTime - dtsStartTime;
+ }
+
+ this.sourceUpdater_.timestampOffset(segmentInfo.timestampOffset); // fired when a timestamp offset is set in HLS (can also identify discontinuities)
+
+ this.trigger('timestampoffset');
+ }
+
+ var timelineMapping = this.syncController_.mappingForTimeline(segmentInfo.timeline);
+
+ if (timelineMapping !== null) {
+ this.trigger({
+ type: 'segmenttimemapping',
+ mapping: timelineMapping
+ });
+ }
+
+ this.state = 'APPENDING'; // if the media initialization segment is changing, append it
+ // before the content segment
+
+ if (segment.map) {
+ var initId = initSegmentId(segment.map);
+
+ if (!this.activeInitSegmentId_ || this.activeInitSegmentId_ !== initId) {
+ var initSegment = this.initSegment(segment.map);
+ this.sourceUpdater_.appendBuffer({
+ bytes: initSegment.bytes
+ }, function () {
+ _this3.activeInitSegmentId_ = initId;
+ });
+ }
+ }
+
+ segmentInfo.byteLength = segmentInfo.bytes.byteLength;
+
+ if (typeof segment.start === 'number' && typeof segment.end === 'number') {
+ this.mediaSecondsLoaded += segment.end - segment.start;
+ } else {
+ this.mediaSecondsLoaded += segment.duration;
+ }
+
+ this.logger_(segmentInfoString(segmentInfo));
+ this.sourceUpdater_.appendBuffer({
+ bytes: segmentInfo.bytes,
+ videoSegmentTimingInfoCallback: this.handleVideoSegmentTimingInfo_.bind(this, segmentInfo.requestId)
+ }, this.handleUpdateEnd_.bind(this));
+ }
+ }, {
+ key: 'handleVideoSegmentTimingInfo_',
+ value: function handleVideoSegmentTimingInfo_(requestId, event) {
+ if (!this.pendingSegment_ || requestId !== this.pendingSegment_.requestId) {
+ return;
+ }
+
+ var segment = this.pendingSegment_.segment;
+
+ if (!segment.videoTimingInfo) {
+ segment.videoTimingInfo = {};
+ }
+
+ segment.videoTimingInfo.transmuxerPrependedSeconds = event.videoSegmentTimingInfo.prependedContentDuration || 0;
+ segment.videoTimingInfo.transmuxedPresentationStart = event.videoSegmentTimingInfo.start.presentation;
+ segment.videoTimingInfo.transmuxedPresentationEnd = event.videoSegmentTimingInfo.end.presentation; // mainly used as a reference for debugging
+
+ segment.videoTimingInfo.baseMediaDecodeTime = event.videoSegmentTimingInfo.baseMediaDecodeTime;
+ }
+ /**
+ * callback to run when appendBuffer is finished. detects if we are
+ * in a good state to do things with the data we got, or if we need
+ * to wait for more
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleUpdateEnd_',
+ value: function handleUpdateEnd_() {
+ if (!this.pendingSegment_) {
+ this.state = 'READY';
+
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+
+ return;
+ }
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+ var isWalkingForward = this.mediaIndex !== null;
+ this.pendingSegment_ = null;
+ this.recordThroughput_(segmentInfo);
+ this.addSegmentMetadataCue_(segmentInfo);
+ this.state = 'READY';
+ this.mediaIndex = segmentInfo.mediaIndex;
+ this.fetchAtBuffer_ = true;
+ this.currentTimeline_ = segmentInfo.timeline; // We must update the syncinfo to recalculate the seekable range before
+ // the following conditional otherwise it may consider this a bad "guess"
+ // and attempt to resync when the post-update seekable window and live
+ // point would mean that this was the perfect segment to fetch
+
+ this.trigger('syncinfoupdate'); // If we previously appended a segment that ends more than 3 targetDurations before
+ // the currentTime_ that means that our conservative guess was too conservative.
+ // In that case, reset the loader state so that we try to use any information gained
+ // from the previous request to create a new, more accurate, sync-point.
+
+ if (segment.end && this.currentTime_() - segment.end > segmentInfo.playlist.targetDuration * 3) {
+ this.resetEverything();
+ return;
+ } // Don't do a rendition switch unless we have enough time to get a sync segment
+ // and conservatively guess
+
+
+ if (isWalkingForward) {
+ this.trigger('bandwidthupdate');
+ }
+
+ this.trigger('progress'); // any time an update finishes and the last segment is in the
+ // buffer, end the stream. this ensures the "ended" event will
+ // fire if playback reaches that point.
+
+ if (this.isEndOfStream_(segmentInfo.mediaIndex + 1, segmentInfo.playlist)) {
+ this.endOfStream();
+ }
+
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ }
+ /**
+ * Records the current throughput of the decrypt, transmux, and append
+ * portion of the semgment pipeline. `throughput.rate` is a the cumulative
+ * moving average of the throughput. `throughput.count` is the number of
+ * data points in the average.
+ *
+ * @private
+ * @param {Object} segmentInfo the object returned by loadSegment
+ */
+
+ }, {
+ key: 'recordThroughput_',
+ value: function recordThroughput_(segmentInfo) {
+ var rate = this.throughput.rate; // Add one to the time to ensure that we don't accidentally attempt to divide
+ // by zero in the case where the throughput is ridiculously high
+
+ var segmentProcessingTime = Date.now() - segmentInfo.endOfAllRequests + 1; // Multiply by 8000 to convert from bytes/millisecond to bits/second
+
+ var segmentProcessingThroughput = Math.floor(segmentInfo.byteLength / segmentProcessingTime * 8 * 1000); // This is just a cumulative moving average calculation:
+ // newAvg = oldAvg + (sample - oldAvg) / (sampleCount + 1)
+
+ this.throughput.rate += (segmentProcessingThroughput - rate) / ++this.throughput.count;
+ }
+ /**
+ * Adds a cue to the segment-metadata track with some metadata information about the
+ * segment
+ *
+ * @private
+ * @param {Object} segmentInfo
+ * the object returned by loadSegment
+ * @method addSegmentMetadataCue_
+ */
+
+ }, {
+ key: 'addSegmentMetadataCue_',
+ value: function addSegmentMetadataCue_(segmentInfo) {
+ if (!this.segmentMetadataTrack_) {
+ return;
+ }
+
+ var segment = segmentInfo.segment;
+ var start = segment.start;
+ var end = segment.end; // Do not try adding the cue if the start and end times are invalid.
+
+ if (!finite(start) || !finite(end)) {
+ return;
+ }
+
+ removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
+ var Cue = window$1.WebKitDataCue || window$1.VTTCue;
+ var value = {
+ custom: segment.custom,
+ dateTimeObject: segment.dateTimeObject,
+ dateTimeString: segment.dateTimeString,
+ bandwidth: segmentInfo.playlist.attributes.BANDWIDTH,
+ resolution: segmentInfo.playlist.attributes.RESOLUTION,
+ codecs: segmentInfo.playlist.attributes.CODECS,
+ byteLength: segmentInfo.byteLength,
+ uri: segmentInfo.uri,
+ timeline: segmentInfo.timeline,
+ playlist: segmentInfo.playlist.uri,
+ start: start,
+ end: end
+ };
+ var data = JSON.stringify(value);
+ var cue = new Cue(start, end, data); // Attach the metadata to the value property of the cue to keep consistency between
+ // the differences of WebKitDataCue in safari and VTTCue in other browsers
+
+ cue.value = value;
+ this.segmentMetadataTrack_.addCue(cue);
+ }
+ }]);
+ return SegmentLoader;
+}(videojs$1.EventTarget);
+
+var uint8ToUtf8 = function uint8ToUtf8(uintArray) {
+ return decodeURIComponent(escape(String.fromCharCode.apply(null, uintArray)));
+};
+/**
+ * @file vtt-segment-loader.js
+ */
+
+
+var VTT_LINE_TERMINATORS = new Uint8Array('\n\n'.split('').map(function (_char2) {
+ return _char2.charCodeAt(0);
+}));
+/**
+ * An object that manages segment loading and appending.
+ *
+ * @class VTTSegmentLoader
+ * @param {Object} options required and optional options
+ * @extends videojs.EventTarget
+ */
+
+var VTTSegmentLoader = function (_SegmentLoader) {
+ inherits(VTTSegmentLoader, _SegmentLoader);
+
+ function VTTSegmentLoader(settings) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VTTSegmentLoader); // SegmentLoader requires a MediaSource be specified or it will throw an error;
+ // however, VTTSegmentLoader has no need of a media source, so delete the reference
+
+ var _this = possibleConstructorReturn(this, (VTTSegmentLoader.__proto__ || Object.getPrototypeOf(VTTSegmentLoader)).call(this, settings, options));
+
+ _this.mediaSource_ = null;
+ _this.subtitlesTrack_ = null;
+ return _this;
+ }
+ /**
+ * Indicates which time ranges are buffered
+ *
+ * @return {TimeRange}
+ * TimeRange object representing the current buffered ranges
+ */
+
+
+ createClass(VTTSegmentLoader, [{
+ key: 'buffered_',
+ value: function buffered_() {
+ if (!this.subtitlesTrack_ || !this.subtitlesTrack_.cues.length) {
+ return videojs$1.createTimeRanges();
+ }
+
+ var cues = this.subtitlesTrack_.cues;
+ var start = cues[0].startTime;
+ var end = cues[cues.length - 1].startTime;
+ return videojs$1.createTimeRanges([[start, end]]);
+ }
+ /**
+ * Gets and sets init segment for the provided map
+ *
+ * @param {Object} map
+ * The map object representing the init segment to get or set
+ * @param {Boolean=} set
+ * If true, the init segment for the provided map should be saved
+ * @return {Object}
+ * map object for desired init segment
+ */
+
+ }, {
+ key: 'initSegment',
+ value: function initSegment(map) {
+ var set$$1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!map) {
+ return null;
+ }
+
+ var id = initSegmentId(map);
+ var storedMap = this.initSegments_[id];
+
+ if (set$$1 && !storedMap && map.bytes) {
+ // append WebVTT line terminators to the media initialization segment if it exists
+ // to follow the WebVTT spec (https://w3c.github.io/webvtt/#file-structure) that
+ // requires two or more WebVTT line terminators between the WebVTT header and the
+ // rest of the file
+ var combinedByteLength = VTT_LINE_TERMINATORS.byteLength + map.bytes.byteLength;
+ var combinedSegment = new Uint8Array(combinedByteLength);
+ combinedSegment.set(map.bytes);
+ combinedSegment.set(VTT_LINE_TERMINATORS, map.bytes.byteLength);
+ this.initSegments_[id] = storedMap = {
+ resolvedUri: map.resolvedUri,
+ byterange: map.byterange,
+ bytes: combinedSegment
+ };
+ }
+
+ return storedMap || map;
+ }
+ /**
+ * Returns true if all configuration required for loading is present, otherwise false.
+ *
+ * @return {Boolean} True if the all configuration is ready for loading
+ * @private
+ */
+
+ }, {
+ key: 'couldBeginLoading_',
+ value: function couldBeginLoading_() {
+ return this.playlist_ && this.subtitlesTrack_ && !this.paused();
+ }
+ /**
+ * Once all the starting parameters have been specified, begin
+ * operation. This method should only be invoked from the INIT
+ * state.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'init_',
+ value: function init_() {
+ this.state = 'READY';
+ this.resetEverything();
+ return this.monitorBuffer_();
+ }
+ /**
+ * Set a subtitle track on the segment loader to add subtitles to
+ *
+ * @param {TextTrack=} track
+ * The text track to add loaded subtitles to
+ * @return {TextTrack}
+ * Returns the subtitles track
+ */
+
+ }, {
+ key: 'track',
+ value: function track(_track) {
+ if (typeof _track === 'undefined') {
+ return this.subtitlesTrack_;
+ }
+
+ this.subtitlesTrack_ = _track; // if we were unpaused but waiting for a sourceUpdater, start
+ // buffering now
+
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ this.init_();
+ }
+
+ return this.subtitlesTrack_;
+ }
+ /**
+ * Remove any data in the source buffer between start and end times
+ * @param {Number} start - the start time of the region to remove from the buffer
+ * @param {Number} end - the end time of the region to remove from the buffer
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ removeCuesFromTrack(start, end, this.subtitlesTrack_);
+ }
+ /**
+ * fill the buffer with segements unless the sourceBuffers are
+ * currently updating
+ *
+ * Note: this function should only ever be called by monitorBuffer_
+ * and never directly
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fillBuffer_',
+ value: function fillBuffer_() {
+ var _this2 = this;
+
+ if (!this.syncPoint_) {
+ this.syncPoint_ = this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());
+ } // see if we need to begin loading immediately
+
+
+ var segmentInfo = this.checkBuffer_(this.buffered_(), this.playlist_, this.mediaIndex, this.hasPlayed_(), this.currentTime_(), this.syncPoint_);
+ segmentInfo = this.skipEmptySegments_(segmentInfo);
+
+ if (!segmentInfo) {
+ return;
+ }
+
+ if (this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline) === null) {
+ // We don't have the timestamp offset that we need to sync subtitles.
+ // Rerun on a timestamp offset or user interaction.
+ var checkTimestampOffset = function checkTimestampOffset() {
+ _this2.state = 'READY';
+
+ if (!_this2.paused()) {
+ // if not paused, queue a buffer check as soon as possible
+ _this2.monitorBuffer_();
+ }
+ };
+
+ this.syncController_.one('timestampoffset', checkTimestampOffset);
+ this.state = 'WAITING_ON_TIMELINE';
+ return;
+ }
+
+ this.loadSegment_(segmentInfo);
+ }
+ /**
+ * Prevents the segment loader from requesting segments we know contain no subtitles
+ * by walking forward until we find the next segment that we don't know whether it is
+ * empty or not.
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @return {Object}
+ * a segment info object that describes the current segment
+ */
+
+ }, {
+ key: 'skipEmptySegments_',
+ value: function skipEmptySegments_(segmentInfo) {
+ while (segmentInfo && segmentInfo.segment.empty) {
+ segmentInfo = this.generateSegmentInfo_(segmentInfo.playlist, segmentInfo.mediaIndex + 1, segmentInfo.startOfSegment + segmentInfo.duration, segmentInfo.isSyncRequest);
+ }
+
+ return segmentInfo;
+ }
+ /**
+ * append a decrypted segement to the SourceBuffer through a SourceUpdater
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSegment_',
+ value: function handleSegment_() {
+ var _this3 = this;
+
+ if (!this.pendingSegment_ || !this.subtitlesTrack_) {
+ this.state = 'READY';
+ return;
+ }
+
+ this.state = 'APPENDING';
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment; // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+
+ if (typeof window$1.WebVTT !== 'function' && this.subtitlesTrack_ && this.subtitlesTrack_.tech_) {
+ var loadHandler = void 0;
+
+ var errorHandler = function errorHandler() {
+ _this3.subtitlesTrack_.tech_.off('vttjsloaded', loadHandler);
+
+ _this3.error({
+ message: 'Error loading vtt.js'
+ });
+
+ _this3.state = 'READY';
+
+ _this3.pause();
+
+ _this3.trigger('error');
+ };
+
+ loadHandler = function loadHandler() {
+ _this3.subtitlesTrack_.tech_.off('vttjserror', errorHandler);
+
+ _this3.handleSegment_();
+ };
+
+ this.state = 'WAITING_ON_VTTJS';
+ this.subtitlesTrack_.tech_.one('vttjsloaded', loadHandler);
+ this.subtitlesTrack_.tech_.one('vttjserror', errorHandler);
+ return;
+ }
+
+ segment.requested = true;
+
+ try {
+ this.parseVTTCues_(segmentInfo);
+ } catch (e) {
+ this.error({
+ message: e.message
+ });
+ this.state = 'READY';
+ this.pause();
+ return this.trigger('error');
+ }
+
+ this.updateTimeMapping_(segmentInfo, this.syncController_.timelines[segmentInfo.timeline], this.playlist_);
+
+ if (segmentInfo.isSyncRequest) {
+ this.trigger('syncinfoupdate');
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+ return;
+ }
+
+ segmentInfo.byteLength = segmentInfo.bytes.byteLength;
+ this.mediaSecondsLoaded += segment.duration;
+
+ if (segmentInfo.cues.length) {
+ // remove any overlapping cues to prevent doubling
+ this.remove(segmentInfo.cues[0].endTime, segmentInfo.cues[segmentInfo.cues.length - 1].endTime);
+ }
+
+ segmentInfo.cues.forEach(function (cue) {
+ _this3.subtitlesTrack_.addCue(cue);
+ });
+ this.handleUpdateEnd_();
+ }
+ /**
+ * Uses the WebVTT parser to parse the segment response
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @private
+ */
+
+ }, {
+ key: 'parseVTTCues_',
+ value: function parseVTTCues_(segmentInfo) {
+ var decoder = void 0;
+ var decodeBytesToString = false;
+
+ if (typeof window$1.TextDecoder === 'function') {
+ decoder = new window$1.TextDecoder('utf8');
+ } else {
+ decoder = window$1.WebVTT.StringDecoder();
+ decodeBytesToString = true;
+ }
+
+ var parser = new window$1.WebVTT.Parser(window$1, window$1.vttjs, decoder);
+ segmentInfo.cues = [];
+ segmentInfo.timestampmap = {
+ MPEGTS: 0,
+ LOCAL: 0
+ };
+ parser.oncue = segmentInfo.cues.push.bind(segmentInfo.cues);
+
+ parser.ontimestampmap = function (map) {
+ return segmentInfo.timestampmap = map;
+ };
+
+ parser.onparsingerror = function (error) {
+ videojs$1.log.warn('Error encountered when parsing cues: ' + error.message);
+ };
+
+ if (segmentInfo.segment.map) {
+ var mapData = segmentInfo.segment.map.bytes;
+
+ if (decodeBytesToString) {
+ mapData = uint8ToUtf8(mapData);
+ }
+
+ parser.parse(mapData);
+ }
+
+ var segmentData = segmentInfo.bytes;
+
+ if (decodeBytesToString) {
+ segmentData = uint8ToUtf8(segmentData);
+ }
+
+ parser.parse(segmentData);
+ parser.flush();
+ }
+ /**
+ * Updates the start and end times of any cues parsed by the WebVTT parser using
+ * the information parsed from the X-TIMESTAMP-MAP header and a TS to media time mapping
+ * from the SyncController
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @param {Object} mappingObj
+ * object containing a mapping from TS to media time
+ * @param {Object} playlist
+ * the playlist object containing the segment
+ * @private
+ */
+
+ }, {
+ key: 'updateTimeMapping_',
+ value: function updateTimeMapping_(segmentInfo, mappingObj, playlist) {
+ var segment = segmentInfo.segment;
+
+ if (!mappingObj) {
+ // If the sync controller does not have a mapping of TS to Media Time for the
+ // timeline, then we don't have enough information to update the cue
+ // start/end times
+ return;
+ }
+
+ if (!segmentInfo.cues.length) {
+ // If there are no cues, we also do not have enough information to figure out
+ // segment timing. Mark that the segment contains no cues so we don't re-request
+ // an empty segment.
+ segment.empty = true;
+ return;
+ }
+
+ var timestampmap = segmentInfo.timestampmap;
+ var diff = timestampmap.MPEGTS / 90000 - timestampmap.LOCAL + mappingObj.mapping;
+ segmentInfo.cues.forEach(function (cue) {
+ // First convert cue time to TS time using the timestamp-map provided within the vtt
+ cue.startTime += diff;
+ cue.endTime += diff;
+ });
+
+ if (!playlist.syncInfo) {
+ var firstStart = segmentInfo.cues[0].startTime;
+ var lastStart = segmentInfo.cues[segmentInfo.cues.length - 1].startTime;
+ playlist.syncInfo = {
+ mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
+ time: Math.min(firstStart, lastStart - segment.duration)
+ };
+ }
+ }
+ }]);
+ return VTTSegmentLoader;
+}(SegmentLoader);
+/**
+ * @file ad-cue-tags.js
+ */
+
+/**
+ * Searches for an ad cue that overlaps with the given mediaTime
+ */
+
+
+var findAdCue = function findAdCue(track, mediaTime) {
+ var cues = track.cues;
+
+ for (var i = 0; i < cues.length; i++) {
+ var cue = cues[i];
+
+ if (mediaTime >= cue.adStartTime && mediaTime <= cue.adEndTime) {
+ return cue;
+ }
+ }
+
+ return null;
+};
+
+var updateAdCues = function updateAdCues(media, track) {
+ var offset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+ if (!media.segments) {
+ return;
+ }
+
+ var mediaTime = offset;
+ var cue = void 0;
+
+ for (var i = 0; i < media.segments.length; i++) {
+ var segment = media.segments[i];
+
+ if (!cue) {
+ // Since the cues will span for at least the segment duration, adding a fudge
+ // factor of half segment duration will prevent duplicate cues from being
+ // created when timing info is not exact (e.g. cue start time initialized
+ // at 10.006677, but next call mediaTime is 10.003332 )
+ cue = findAdCue(track, mediaTime + segment.duration / 2);
+ }
+
+ if (cue) {
+ if ('cueIn' in segment) {
+ // Found a CUE-IN so end the cue
+ cue.endTime = mediaTime;
+ cue.adEndTime = mediaTime;
+ mediaTime += segment.duration;
+ cue = null;
+ continue;
+ }
+
+ if (mediaTime < cue.endTime) {
+ // Already processed this mediaTime for this cue
+ mediaTime += segment.duration;
+ continue;
+ } // otherwise extend cue until a CUE-IN is found
+
+
+ cue.endTime += segment.duration;
+ } else {
+ if ('cueOut' in segment) {
+ cue = new window$1.VTTCue(mediaTime, mediaTime + segment.duration, segment.cueOut);
+ cue.adStartTime = mediaTime; // Assumes tag format to be
+ // #EXT-X-CUE-OUT:30
+
+ cue.adEndTime = mediaTime + parseFloat(segment.cueOut);
+ track.addCue(cue);
+ }
+
+ if ('cueOutCont' in segment) {
+ // Entered into the middle of an ad cue
+ var adOffset = void 0;
+ var adTotal = void 0; // Assumes tag formate to be
+ // #EXT-X-CUE-OUT-CONT:10/30
+
+ var _segment$cueOutCont$s = segment.cueOutCont.split('/').map(parseFloat);
+
+ var _segment$cueOutCont$s2 = slicedToArray(_segment$cueOutCont$s, 2);
+
+ adOffset = _segment$cueOutCont$s2[0];
+ adTotal = _segment$cueOutCont$s2[1];
+ cue = new window$1.VTTCue(mediaTime, mediaTime + segment.duration, '');
+ cue.adStartTime = mediaTime - adOffset;
+ cue.adEndTime = cue.adStartTime + adTotal;
+ track.addCue(cue);
+ }
+ }
+
+ mediaTime += segment.duration;
+ }
+};
+/**
+ * @file sync-controller.js
+ */
+
+
+var tsprobe = tsInspector.inspect;
+var syncPointStrategies = [// Stategy "VOD": Handle the VOD-case where the sync-point is *always*
+// the equivalence display-time 0 === segment-index 0
+{
+ name: 'VOD',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (duration$$1 !== Infinity) {
+ var syncPoint = {
+ time: 0,
+ segmentIndex: 0
+ };
+ return syncPoint;
+ }
+
+ return null;
+ }
+}, // Stategy "ProgramDateTime": We have a program-date-time tag in this playlist
+{
+ name: 'ProgramDateTime',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (!syncController.datetimeToDisplayTime) {
+ return null;
+ }
+
+ var segments = playlist.segments || [];
+ var syncPoint = null;
+ var lastDistance = null;
+ currentTime = currentTime || 0;
+
+ for (var i = 0; i < segments.length; i++) {
+ var segment = segments[i];
+
+ if (segment.dateTimeObject) {
+ var segmentTime = segment.dateTimeObject.getTime() / 1000;
+ var segmentStart = segmentTime + syncController.datetimeToDisplayTime;
+ var distance = Math.abs(currentTime - segmentStart); // Once the distance begins to increase, or if distance is 0, we have passed
+ // currentTime and can stop looking for better candidates
+
+ if (lastDistance !== null && (distance === 0 || lastDistance < distance)) {
+ break;
+ }
+
+ lastDistance = distance;
+ syncPoint = {
+ time: segmentStart,
+ segmentIndex: i
+ };
+ }
+ }
+
+ return syncPoint;
+ }
+}, // Stategy "Segment": We have a known time mapping for a timeline and a
+// segment in the current timeline with timing data
+{
+ name: 'Segment',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ var segments = playlist.segments || [];
+ var syncPoint = null;
+ var lastDistance = null;
+ currentTime = currentTime || 0;
+
+ for (var i = 0; i < segments.length; i++) {
+ var segment = segments[i];
+
+ if (segment.timeline === currentTimeline && typeof segment.start !== 'undefined') {
+ var distance = Math.abs(currentTime - segment.start); // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ if (!syncPoint || lastDistance === null || lastDistance >= distance) {
+ lastDistance = distance;
+ syncPoint = {
+ time: segment.start,
+ segmentIndex: i
+ };
+ }
+ }
+ }
+
+ return syncPoint;
+ }
+}, // Stategy "Discontinuity": We have a discontinuity with a known
+// display-time
+{
+ name: 'Discontinuity',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoint = null;
+ currentTime = currentTime || 0;
+
+ if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
+ var lastDistance = null;
+
+ for (var i = 0; i < playlist.discontinuityStarts.length; i++) {
+ var segmentIndex = playlist.discontinuityStarts[i];
+ var discontinuity = playlist.discontinuitySequence + i + 1;
+ var discontinuitySync = syncController.discontinuities[discontinuity];
+
+ if (discontinuitySync) {
+ var distance = Math.abs(currentTime - discontinuitySync.time); // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ if (!syncPoint || lastDistance === null || lastDistance >= distance) {
+ lastDistance = distance;
+ syncPoint = {
+ time: discontinuitySync.time,
+ segmentIndex: segmentIndex
+ };
+ }
+ }
+ }
+ }
+
+ return syncPoint;
+ }
+}, // Stategy "Playlist": We have a playlist with a known mapping of
+// segment index to display time
+{
+ name: 'Playlist',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (playlist.syncInfo) {
+ var syncPoint = {
+ time: playlist.syncInfo.time,
+ segmentIndex: playlist.syncInfo.mediaSequence - playlist.mediaSequence
+ };
+ return syncPoint;
+ }
+
+ return null;
+ }
+}];
+
+var SyncController = function (_videojs$EventTarget) {
+ inherits(SyncController, _videojs$EventTarget);
+
+ function SyncController() {
+ classCallCheck(this, SyncController); // Segment Loader state variables...
+ // ...for synching across variants
+
+ var _this = possibleConstructorReturn(this, (SyncController.__proto__ || Object.getPrototypeOf(SyncController)).call(this));
+
+ _this.inspectCache_ = undefined; // ...for synching across variants
+
+ _this.timelines = [];
+ _this.discontinuities = [];
+ _this.datetimeToDisplayTime = null;
+ _this.logger_ = logger('SyncController');
+ return _this;
+ }
+ /**
+ * Find a sync-point for the playlist specified
+ *
+ * A sync-point is defined as a known mapping from display-time to
+ * a segment-index in the current playlist.
+ *
+ * @param {Playlist} playlist
+ * The playlist that needs a sync-point
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinite if playing a live source)
+ * @param {Number} currentTimeline
+ * The last timeline from which a segment was loaded
+ * @returns {Object}
+ * A sync-point object
+ */
+
+
+ createClass(SyncController, [{
+ key: 'getSyncPoint',
+ value: function getSyncPoint(playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoints = this.runStrategies_(playlist, duration$$1, currentTimeline, currentTime);
+
+ if (!syncPoints.length) {
+ // Signal that we need to attempt to get a sync-point manually
+ // by fetching a segment in the playlist and constructing
+ // a sync-point from that information
+ return null;
+ } // Now find the sync-point that is closest to the currentTime because
+ // that should result in the most accurate guess about which segment
+ // to fetch
+
+
+ return this.selectSyncPoint_(syncPoints, {
+ key: 'time',
+ value: currentTime
+ });
+ }
+ /**
+ * Calculate the amount of time that has expired off the playlist during playback
+ *
+ * @param {Playlist} playlist
+ * Playlist object to calculate expired from
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinity if playling a live source)
+ * @returns {Number|null}
+ * The amount of time that has expired off the playlist during playback. Null
+ * if no sync-points for the playlist can be found.
+ */
+
+ }, {
+ key: 'getExpiredTime',
+ value: function getExpiredTime(playlist, duration$$1) {
+ if (!playlist || !playlist.segments) {
+ return null;
+ }
+
+ var syncPoints = this.runStrategies_(playlist, duration$$1, playlist.discontinuitySequence, 0); // Without sync-points, there is not enough information to determine the expired time
+
+ if (!syncPoints.length) {
+ return null;
+ }
+
+ var syncPoint = this.selectSyncPoint_(syncPoints, {
+ key: 'segmentIndex',
+ value: 0
+ }); // If the sync-point is beyond the start of the playlist, we want to subtract the
+ // duration from index 0 to syncPoint.segmentIndex instead of adding.
+
+ if (syncPoint.segmentIndex > 0) {
+ syncPoint.time *= -1;
+ }
+
+ return Math.abs(syncPoint.time + sumDurations(playlist, syncPoint.segmentIndex, 0));
+ }
+ /**
+ * Runs each sync-point strategy and returns a list of sync-points returned by the
+ * strategies
+ *
+ * @private
+ * @param {Playlist} playlist
+ * The playlist that needs a sync-point
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinity if playing a live source)
+ * @param {Number} currentTimeline
+ * The last timeline from which a segment was loaded
+ * @returns {Array}
+ * A list of sync-point objects
+ */
+
+ }, {
+ key: 'runStrategies_',
+ value: function runStrategies_(playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoints = []; // Try to find a sync-point in by utilizing various strategies...
+
+ for (var i = 0; i < syncPointStrategies.length; i++) {
+ var strategy = syncPointStrategies[i];
+ var syncPoint = strategy.run(this, playlist, duration$$1, currentTimeline, currentTime);
+
+ if (syncPoint) {
+ syncPoint.strategy = strategy.name;
+ syncPoints.push({
+ strategy: strategy.name,
+ syncPoint: syncPoint
+ });
+ }
+ }
+
+ return syncPoints;
+ }
+ /**
+ * Selects the sync-point nearest the specified target
+ *
+ * @private
+ * @param {Array} syncPoints
+ * List of sync-points to select from
+ * @param {Object} target
+ * Object specifying the property and value we are targeting
+ * @param {String} target.key
+ * Specifies the property to target. Must be either 'time' or 'segmentIndex'
+ * @param {Number} target.value
+ * The value to target for the specified key.
+ * @returns {Object}
+ * The sync-point nearest the target
+ */
+
+ }, {
+ key: 'selectSyncPoint_',
+ value: function selectSyncPoint_(syncPoints, target) {
+ var bestSyncPoint = syncPoints[0].syncPoint;
+ var bestDistance = Math.abs(syncPoints[0].syncPoint[target.key] - target.value);
+ var bestStrategy = syncPoints[0].strategy;
+
+ for (var i = 1; i < syncPoints.length; i++) {
+ var newDistance = Math.abs(syncPoints[i].syncPoint[target.key] - target.value);
+
+ if (newDistance < bestDistance) {
+ bestDistance = newDistance;
+ bestSyncPoint = syncPoints[i].syncPoint;
+ bestStrategy = syncPoints[i].strategy;
+ }
+ }
+
+ this.logger_('syncPoint for [' + target.key + ': ' + target.value + '] chosen with strategy' + (' [' + bestStrategy + ']: [time:' + bestSyncPoint.time + ',') + (' segmentIndex:' + bestSyncPoint.segmentIndex + ']'));
+ return bestSyncPoint;
+ }
+ /**
+ * Save any meta-data present on the segments when segments leave
+ * the live window to the playlist to allow for synchronization at the
+ * playlist level later.
+ *
+ * @param {Playlist} oldPlaylist - The previous active playlist
+ * @param {Playlist} newPlaylist - The updated and most current playlist
+ */
+
+ }, {
+ key: 'saveExpiredSegmentInfo',
+ value: function saveExpiredSegmentInfo(oldPlaylist, newPlaylist) {
+ var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence; // When a segment expires from the playlist and it has a start time
+ // save that information as a possible sync-point reference in future
+
+ for (var i = mediaSequenceDiff - 1; i >= 0; i--) {
+ var lastRemovedSegment = oldPlaylist.segments[i];
+
+ if (lastRemovedSegment && typeof lastRemovedSegment.start !== 'undefined') {
+ newPlaylist.syncInfo = {
+ mediaSequence: oldPlaylist.mediaSequence + i,
+ time: lastRemovedSegment.start
+ };
+ this.logger_('playlist refresh sync: [time:' + newPlaylist.syncInfo.time + ',' + (' mediaSequence: ' + newPlaylist.syncInfo.mediaSequence + ']'));
+ this.trigger('syncinfoupdate');
+ break;
+ }
+ }
+ }
+ /**
+ * Save the mapping from playlist's ProgramDateTime to display. This should
+ * only ever happen once at the start of playback.
+ *
+ * @param {Playlist} playlist - The currently active playlist
+ */
+
+ }, {
+ key: 'setDateTimeMapping',
+ value: function setDateTimeMapping(playlist) {
+ if (!this.datetimeToDisplayTime && playlist.segments && playlist.segments.length && playlist.segments[0].dateTimeObject) {
+ var playlistTimestamp = playlist.segments[0].dateTimeObject.getTime() / 1000;
+ this.datetimeToDisplayTime = -playlistTimestamp;
+ }
+ }
+ /**
+ * Reset the state of the inspection cache when we do a rendition
+ * switch
+ */
+
+ }, {
+ key: 'reset',
+ value: function reset() {
+ this.inspectCache_ = undefined;
+ }
+ /**
+ * Probe or inspect a fmp4 or an mpeg2-ts segment to determine the start
+ * and end of the segment in it's internal "media time". Used to generate
+ * mappings from that internal "media time" to the display time that is
+ * shown on the player.
+ *
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ */
+
+ }, {
+ key: 'probeSegmentInfo',
+ value: function probeSegmentInfo(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var playlist = segmentInfo.playlist;
+ var timingInfo = void 0;
+
+ if (segment.map) {
+ timingInfo = this.probeMp4Segment_(segmentInfo);
+ } else {
+ timingInfo = this.probeTsSegment_(segmentInfo);
+ }
+
+ if (timingInfo) {
+ if (this.calculateSegmentTimeMapping_(segmentInfo, timingInfo)) {
+ this.saveDiscontinuitySyncInfo_(segmentInfo); // If the playlist does not have sync information yet, record that information
+ // now with segment timing information
+
+ if (!playlist.syncInfo) {
+ playlist.syncInfo = {
+ mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
+ time: segment.start
+ };
+ }
+ }
+ }
+
+ return timingInfo;
+ }
+ /**
+ * Probe an fmp4 or an mpeg2-ts segment to determine the start of the segment
+ * in it's internal "media time".
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ * @return {object} The start and end time of the current segment in "media time"
+ */
+
+ }, {
+ key: 'probeMp4Segment_',
+ value: function probeMp4Segment_(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var timescales = mp4probe.timescale(segment.map.bytes);
+ var startTime = mp4probe.startTime(timescales, segmentInfo.bytes);
+
+ if (segmentInfo.timestampOffset !== null) {
+ segmentInfo.timestampOffset -= startTime;
+ }
+
+ return {
+ start: startTime,
+ end: startTime + segment.duration
+ };
+ }
+ /**
+ * Probe an mpeg2-ts segment to determine the start and end of the segment
+ * in it's internal "media time".
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ * @return {object} The start and end time of the current segment in "media time"
+ */
+
+ }, {
+ key: 'probeTsSegment_',
+ value: function probeTsSegment_(segmentInfo) {
+ var timeInfo = tsprobe(segmentInfo.bytes, this.inspectCache_);
+ var segmentStartTime = void 0;
+ var segmentEndTime = void 0;
+ var segmentTimestampInfo = void 0;
+
+ if (!timeInfo) {
+ return null;
+ }
+
+ if (timeInfo.video && timeInfo.video.length === 2) {
+ this.inspectCache_ = timeInfo.video[1].dts;
+ segmentStartTime = timeInfo.video[0].dtsTime;
+ segmentEndTime = timeInfo.video[1].dtsTime;
+ segmentTimestampInfo = timeInfo.video;
+ } else if (timeInfo.audio && timeInfo.audio.length === 2) {
+ this.inspectCache_ = timeInfo.audio[1].dts;
+ segmentStartTime = timeInfo.audio[0].dtsTime;
+ segmentEndTime = timeInfo.audio[1].dtsTime;
+ segmentTimestampInfo = timeInfo.audio;
+ }
+
+ var probedInfo = {
+ segmentTimestampInfo: segmentTimestampInfo,
+ start: segmentStartTime,
+ end: segmentEndTime,
+ containsVideo: timeInfo.video && timeInfo.video.length === 2,
+ containsAudio: timeInfo.audio && timeInfo.audio.length === 2
+ };
+ return probedInfo;
+ }
+ }, {
+ key: 'timestampOffsetForTimeline',
+ value: function timestampOffsetForTimeline(timeline) {
+ if (typeof this.timelines[timeline] === 'undefined') {
+ return null;
+ }
+
+ return this.timelines[timeline].time;
+ }
+ }, {
+ key: 'mappingForTimeline',
+ value: function mappingForTimeline(timeline) {
+ if (typeof this.timelines[timeline] === 'undefined') {
+ return null;
+ }
+
+ return this.timelines[timeline].mapping;
+ }
+ /**
+ * Use the "media time" for a segment to generate a mapping to "display time" and
+ * save that display time to the segment.
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo
+ * The current active request information
+ * @param {object} timingInfo
+ * The start and end time of the current segment in "media time"
+ * @returns {Boolean}
+ * Returns false if segment time mapping could not be calculated
+ */
+
+ }, {
+ key: 'calculateSegmentTimeMapping_',
+ value: function calculateSegmentTimeMapping_(segmentInfo, timingInfo) {
+ var segment = segmentInfo.segment;
+ var mappingObj = this.timelines[segmentInfo.timeline];
+
+ if (segmentInfo.timestampOffset !== null) {
+ mappingObj = {
+ time: segmentInfo.startOfSegment,
+ mapping: segmentInfo.startOfSegment - timingInfo.start
+ };
+ this.timelines[segmentInfo.timeline] = mappingObj;
+ this.trigger('timestampoffset');
+ this.logger_('time mapping for timeline ' + segmentInfo.timeline + ': ' + ('[time: ' + mappingObj.time + '] [mapping: ' + mappingObj.mapping + ']'));
+ segment.start = segmentInfo.startOfSegment;
+ segment.end = timingInfo.end + mappingObj.mapping;
+ } else if (mappingObj) {
+ segment.start = timingInfo.start + mappingObj.mapping;
+ segment.end = timingInfo.end + mappingObj.mapping;
+ } else {
+ return false;
+ }
+
+ return true;
+ }
+ /**
+ * Each time we have discontinuity in the playlist, attempt to calculate the location
+ * in display of the start of the discontinuity and save that. We also save an accuracy
+ * value so that we save values with the most accuracy (closest to 0.)
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ */
+
+ }, {
+ key: 'saveDiscontinuitySyncInfo_',
+ value: function saveDiscontinuitySyncInfo_(segmentInfo) {
+ var playlist = segmentInfo.playlist;
+ var segment = segmentInfo.segment; // If the current segment is a discontinuity then we know exactly where
+ // the start of the range and it's accuracy is 0 (greater accuracy values
+ // mean more approximation)
+
+ if (segment.discontinuity) {
+ this.discontinuities[segment.timeline] = {
+ time: segment.start,
+ accuracy: 0
+ };
+ } else if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
+ // Search for future discontinuities that we can provide better timing
+ // information for and save that information for sync purposes
+ for (var i = 0; i < playlist.discontinuityStarts.length; i++) {
+ var segmentIndex = playlist.discontinuityStarts[i];
+ var discontinuity = playlist.discontinuitySequence + i + 1;
+ var mediaIndexDiff = segmentIndex - segmentInfo.mediaIndex;
+ var accuracy = Math.abs(mediaIndexDiff);
+
+ if (!this.discontinuities[discontinuity] || this.discontinuities[discontinuity].accuracy > accuracy) {
+ var time = void 0;
+
+ if (mediaIndexDiff < 0) {
+ time = segment.start - sumDurations(playlist, segmentInfo.mediaIndex, segmentIndex);
+ } else {
+ time = segment.end + sumDurations(playlist, segmentInfo.mediaIndex + 1, segmentIndex);
+ }
+
+ this.discontinuities[discontinuity] = {
+ time: time,
+ accuracy: accuracy
+ };
+ }
+ }
+ }
+ }
+ }]);
+ return SyncController;
+}(videojs$1.EventTarget);
+
+var Decrypter$1 = new shimWorker("./decrypter-worker.worker.js", function (window, document$$1) {
+ var self = this;
+
+ var decrypterWorker = function () {
+ /*
+ * pkcs7.pad
+ * https://github.com/brightcove/pkcs7
+ *
+ * Copyright (c) 2014 Brightcove
+ * Licensed under the apache2 license.
+ */
+
+ /**
+ * Returns the subarray of a Uint8Array without PKCS#7 padding.
+ * @param padded {Uint8Array} unencrypted bytes that have been padded
+ * @return {Uint8Array} the unpadded bytes
+ * @see http://tools.ietf.org/html/rfc5652
+ */
+ function unpad(padded) {
+ return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);
+ }
+
+ var classCallCheck = function classCallCheck(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ var inherits = function inherits(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn = function possibleConstructorReturn(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && (typeof call === "object" || typeof call === "function") ? call : self;
+ };
+ /**
+ * @file aes.js
+ *
+ * This file contains an adaptation of the AES decryption algorithm
+ * from the Standford Javascript Cryptography Library. That work is
+ * covered by the following copyright and permissions notice:
+ *
+ * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation
+ * are those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of the authors.
+ */
+
+ /**
+ * Expand the S-box tables.
+ *
+ * @private
+ */
+
+
+ var precompute = function precompute() {
+ var tables = [[[], [], [], [], []], [[], [], [], [], []]];
+ var encTable = tables[0];
+ var decTable = tables[1];
+ var sbox = encTable[4];
+ var sboxInv = decTable[4];
+ var i = void 0;
+ var x = void 0;
+ var xInv = void 0;
+ var d = [];
+ var th = [];
+ var x2 = void 0;
+ var x4 = void 0;
+ var x8 = void 0;
+ var s = void 0;
+ var tEnc = void 0;
+ var tDec = void 0; // Compute double and third tables
+
+ for (i = 0; i < 256; i++) {
+ th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;
+ }
+
+ for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {
+ // Compute sbox
+ s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;
+ s = s >> 8 ^ s & 255 ^ 99;
+ sbox[x] = s;
+ sboxInv[s] = x; // Compute MixColumns
+
+ x8 = d[x4 = d[x2 = d[x]]];
+ tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;
+ tEnc = d[s] * 0x101 ^ s * 0x1010100;
+
+ for (i = 0; i < 4; i++) {
+ encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;
+ decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;
+ }
+ } // Compactify. Considerable speedup on Firefox.
+
+
+ for (i = 0; i < 5; i++) {
+ encTable[i] = encTable[i].slice(0);
+ decTable[i] = decTable[i].slice(0);
+ }
+
+ return tables;
+ };
+
+ var aesTables = null;
+ /**
+ * Schedule out an AES key for both encryption and decryption. This
+ * is a low-level class. Use a cipher mode to do bulk encryption.
+ *
+ * @class AES
+ * @param key {Array} The key as an array of 4, 6 or 8 words.
+ */
+
+ var AES = function () {
+ function AES(key) {
+ classCallCheck(this, AES);
+ /**
+ * The expanded S-box and inverse S-box tables. These will be computed
+ * on the client so that we don't have to send them down the wire.
+ *
+ * There are two tables, _tables[0] is for encryption and
+ * _tables[1] is for decryption.
+ *
+ * The first 4 sub-tables are the expanded S-box with MixColumns. The
+ * last (_tables[01][4]) is the S-box itself.
+ *
+ * @private
+ */
+ // if we have yet to precompute the S-box tables
+ // do so now
+
+ if (!aesTables) {
+ aesTables = precompute();
+ } // then make a copy of that object for use
+
+
+ this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];
+ var i = void 0;
+ var j = void 0;
+ var tmp = void 0;
+ var encKey = void 0;
+ var decKey = void 0;
+ var sbox = this._tables[0][4];
+ var decTable = this._tables[1];
+ var keyLen = key.length;
+ var rcon = 1;
+
+ if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {
+ throw new Error('Invalid aes key size');
+ }
+
+ encKey = key.slice(0);
+ decKey = [];
+ this._key = [encKey, decKey]; // schedule encryption keys
+
+ for (i = keyLen; i < 4 * keyLen + 28; i++) {
+ tmp = encKey[i - 1]; // apply sbox
+
+ if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {
+ tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255]; // shift rows and add rcon
+
+ if (i % keyLen === 0) {
+ tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;
+ rcon = rcon << 1 ^ (rcon >> 7) * 283;
+ }
+ }
+
+ encKey[i] = encKey[i - keyLen] ^ tmp;
+ } // schedule decryption keys
+
+
+ for (j = 0; i; j++, i--) {
+ tmp = encKey[j & 3 ? i : i - 4];
+
+ if (i <= 4 || j < 4) {
+ decKey[j] = tmp;
+ } else {
+ decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];
+ }
+ }
+ }
+ /**
+ * Decrypt 16 bytes, specified as four 32-bit words.
+ *
+ * @param {Number} encrypted0 the first word to decrypt
+ * @param {Number} encrypted1 the second word to decrypt
+ * @param {Number} encrypted2 the third word to decrypt
+ * @param {Number} encrypted3 the fourth word to decrypt
+ * @param {Int32Array} out the array to write the decrypted words
+ * into
+ * @param {Number} offset the offset into the output array to start
+ * writing results
+ * @return {Array} The plaintext.
+ */
+
+
+ AES.prototype.decrypt = function decrypt$$1(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {
+ var key = this._key[1]; // state variables a,b,c,d are loaded with pre-whitened data
+
+ var a = encrypted0 ^ key[0];
+ var b = encrypted3 ^ key[1];
+ var c = encrypted2 ^ key[2];
+ var d = encrypted1 ^ key[3];
+ var a2 = void 0;
+ var b2 = void 0;
+ var c2 = void 0; // key.length === 2 ?
+
+ var nInnerRounds = key.length / 4 - 2;
+ var i = void 0;
+ var kIndex = 4;
+ var table = this._tables[1]; // load up the tables
+
+ var table0 = table[0];
+ var table1 = table[1];
+ var table2 = table[2];
+ var table3 = table[3];
+ var sbox = table[4]; // Inner rounds. Cribbed from OpenSSL.
+
+ for (i = 0; i < nInnerRounds; i++) {
+ a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];
+ b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];
+ c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];
+ d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];
+ kIndex += 4;
+ a = a2;
+ b = b2;
+ c = c2;
+ } // Last round.
+
+
+ for (i = 0; i < 4; i++) {
+ out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];
+ a2 = a;
+ a = b;
+ b = c;
+ c = d;
+ d = a2;
+ }
+ };
+
+ return AES;
+ }();
+ /**
+ * @file stream.js
+ */
+
+ /**
+ * A lightweight readable stream implemention that handles event dispatching.
+ *
+ * @class Stream
+ */
+
+
+ var Stream = function () {
+ function Stream() {
+ classCallCheck(this, Stream);
+ this.listeners = {};
+ }
+ /**
+ * Add a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener the callback to be invoked when an event of
+ * the specified type occurs
+ */
+
+
+ Stream.prototype.on = function on(type, listener) {
+ if (!this.listeners[type]) {
+ this.listeners[type] = [];
+ }
+
+ this.listeners[type].push(listener);
+ };
+ /**
+ * Remove a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener a function previously registered for this
+ * type of event through `on`
+ * @return {Boolean} if we could turn it off or not
+ */
+
+
+ Stream.prototype.off = function off(type, listener) {
+ if (!this.listeners[type]) {
+ return false;
+ }
+
+ var index = this.listeners[type].indexOf(listener);
+ this.listeners[type].splice(index, 1);
+ return index > -1;
+ };
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ *
+ * @param {String} type the event name
+ */
+
+
+ Stream.prototype.trigger = function trigger(type) {
+ var callbacks = this.listeners[type];
+
+ if (!callbacks) {
+ return;
+ } // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+
+
+ if (arguments.length === 2) {
+ var length = callbacks.length;
+
+ for (var i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ var args = Array.prototype.slice.call(arguments, 1);
+ var _length = callbacks.length;
+
+ for (var _i = 0; _i < _length; ++_i) {
+ callbacks[_i].apply(this, args);
+ }
+ }
+ };
+ /**
+ * Destroys the stream and cleans up.
+ */
+
+
+ Stream.prototype.dispose = function dispose() {
+ this.listeners = {};
+ };
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ *
+ * @param {Stream} destination the stream that will receive all `data` events
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+
+
+ Stream.prototype.pipe = function pipe(destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+ };
+
+ return Stream;
+ }();
+ /**
+ * @file async-stream.js
+ */
+
+ /**
+ * A wrapper around the Stream class to use setTiemout
+ * and run stream "jobs" Asynchronously
+ *
+ * @class AsyncStream
+ * @extends Stream
+ */
+
+
+ var AsyncStream$$1 = function (_Stream) {
+ inherits(AsyncStream$$1, _Stream);
+
+ function AsyncStream$$1() {
+ classCallCheck(this, AsyncStream$$1);
+
+ var _this = possibleConstructorReturn(this, _Stream.call(this, Stream));
+
+ _this.jobs = [];
+ _this.delay = 1;
+ _this.timeout_ = null;
+ return _this;
+ }
+ /**
+ * process an async job
+ *
+ * @private
+ */
+
+
+ AsyncStream$$1.prototype.processJob_ = function processJob_() {
+ this.jobs.shift()();
+
+ if (this.jobs.length) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ } else {
+ this.timeout_ = null;
+ }
+ };
+ /**
+ * push a job into the stream
+ *
+ * @param {Function} job the job to push into the stream
+ */
+
+
+ AsyncStream$$1.prototype.push = function push(job) {
+ this.jobs.push(job);
+
+ if (!this.timeout_) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ }
+ };
+
+ return AsyncStream$$1;
+ }(Stream);
+ /**
+ * @file decrypter.js
+ *
+ * An asynchronous implementation of AES-128 CBC decryption with
+ * PKCS#7 padding.
+ */
+
+ /**
+ * Convert network-order (big-endian) bytes into their little-endian
+ * representation.
+ */
+
+
+ var ntoh = function ntoh(word) {
+ return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;
+ };
+ /**
+ * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * use for the first round of CBC.
+ * @return {Uint8Array} the decrypted bytes
+ *
+ * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
+ * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29
+ * @see https://tools.ietf.org/html/rfc2315
+ */
+
+
+ var decrypt$$1 = function decrypt$$1(encrypted, key, initVector) {
+ // word-level access to the encrypted bytes
+ var encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);
+ var decipher = new AES(Array.prototype.slice.call(key)); // byte and word-level access for the decrypted output
+
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var decrypted32 = new Int32Array(decrypted.buffer); // temporary variables for working with the IV, encrypted, and
+ // decrypted data
+
+ var init0 = void 0;
+ var init1 = void 0;
+ var init2 = void 0;
+ var init3 = void 0;
+ var encrypted0 = void 0;
+ var encrypted1 = void 0;
+ var encrypted2 = void 0;
+ var encrypted3 = void 0; // iteration variable
+
+ var wordIx = void 0; // pull out the words of the IV to ensure we don't modify the
+ // passed-in reference and easier access
+
+ init0 = initVector[0];
+ init1 = initVector[1];
+ init2 = initVector[2];
+ init3 = initVector[3]; // decrypt four word sequences, applying cipher-block chaining (CBC)
+ // to each decrypted block
+
+ for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {
+ // convert big-endian (network order) words into little-endian
+ // (javascript order)
+ encrypted0 = ntoh(encrypted32[wordIx]);
+ encrypted1 = ntoh(encrypted32[wordIx + 1]);
+ encrypted2 = ntoh(encrypted32[wordIx + 2]);
+ encrypted3 = ntoh(encrypted32[wordIx + 3]); // decrypt the block
+
+ decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx); // XOR with the IV, and restore network byte-order to obtain the
+ // plaintext
+
+ decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);
+ decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);
+ decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);
+ decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3); // setup the IV for the next round
+
+ init0 = encrypted0;
+ init1 = encrypted1;
+ init2 = encrypted2;
+ init3 = encrypted3;
+ }
+
+ return decrypted;
+ };
+ /**
+ * The `Decrypter` class that manages decryption of AES
+ * data through `AsyncStream` objects and the `decrypt`
+ * function
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * @param {Function} done the function to run when done
+ * @class Decrypter
+ */
+
+
+ var Decrypter$$1 = function () {
+ function Decrypter$$1(encrypted, key, initVector, done) {
+ classCallCheck(this, Decrypter$$1);
+ var step = Decrypter$$1.STEP;
+ var encrypted32 = new Int32Array(encrypted.buffer);
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var i = 0;
+ this.asyncStream_ = new AsyncStream$$1(); // split up the encryption job and do the individual chunks asynchronously
+
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+
+ for (i = step; i < encrypted32.length; i += step) {
+ initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ } // invoke the done() callback when everything is finished
+
+
+ this.asyncStream_.push(function () {
+ // remove pkcs#7 padding from the decrypted bytes
+ done(null, unpad(decrypted));
+ });
+ }
+ /**
+ * a getter for step the maximum number of bytes to process at one time
+ *
+ * @return {Number} the value of step 32000
+ */
+
+ /**
+ * @private
+ */
+
+
+ Decrypter$$1.prototype.decryptChunk_ = function decryptChunk_(encrypted, key, initVector, decrypted) {
+ return function () {
+ var bytes = decrypt$$1(encrypted, key, initVector);
+ decrypted.set(bytes, encrypted.byteOffset);
+ };
+ };
+
+ createClass(Decrypter$$1, null, [{
+ key: 'STEP',
+ get: function get$$1() {
+ // 4 * 8000;
+ return 32000;
+ }
+ }]);
+ return Decrypter$$1;
+ }();
+ /**
+ * @file bin-utils.js
+ */
+
+ /**
+ * Creates an object for sending to a web worker modifying properties that are TypedArrays
+ * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
+ *
+ * @param {Object} message
+ * Object of properties and values to send to the web worker
+ * @return {Object}
+ * Modified message with TypedArray values expanded
+ * @function createTransferableMessage
+ */
+
+
+ var createTransferableMessage = function createTransferableMessage(message) {
+ var transferable = {};
+ Object.keys(message).forEach(function (key) {
+ var value = message[key];
+
+ if (ArrayBuffer.isView(value)) {
+ transferable[key] = {
+ bytes: value.buffer,
+ byteOffset: value.byteOffset,
+ byteLength: value.byteLength
+ };
+ } else {
+ transferable[key] = value;
+ }
+ });
+ return transferable;
+ };
+ /**
+ * Our web worker interface so that things can talk to aes-decrypter
+ * that will be running in a web worker. the scope is passed to this by
+ * webworkify.
+ *
+ * @param {Object} self
+ * the scope for the web worker
+ */
+
+
+ var DecrypterWorker = function DecrypterWorker(self) {
+ self.onmessage = function (event) {
+ var data = event.data;
+ var encrypted = new Uint8Array(data.encrypted.bytes, data.encrypted.byteOffset, data.encrypted.byteLength);
+ var key = new Uint32Array(data.key.bytes, data.key.byteOffset, data.key.byteLength / 4);
+ var iv = new Uint32Array(data.iv.bytes, data.iv.byteOffset, data.iv.byteLength / 4);
+ /* eslint-disable no-new, handle-callback-err */
+
+ new Decrypter$$1(encrypted, key, iv, function (err, bytes) {
+ self.postMessage(createTransferableMessage({
+ source: data.source,
+ decrypted: bytes
+ }), [bytes.buffer]);
+ });
+ /* eslint-enable */
+ };
+ };
+
+ var decrypterWorker = new DecrypterWorker(self);
+ return decrypterWorker;
+ }();
+});
+/**
+ * Convert the properties of an HLS track into an audioTrackKind.
+ *
+ * @private
+ */
+
+var audioTrackKind_ = function audioTrackKind_(properties) {
+ var kind = properties["default"] ? 'main' : 'alternative';
+
+ if (properties.characteristics && properties.characteristics.indexOf('public.accessibility.describes-video') >= 0) {
+ kind = 'main-desc';
+ }
+
+ return kind;
+};
+/**
+ * Pause provided segment loader and playlist loader if active
+ *
+ * @param {SegmentLoader} segmentLoader
+ * SegmentLoader to pause
+ * @param {Object} mediaType
+ * Active media type
+ * @function stopLoaders
+ */
+
+
+var stopLoaders = function stopLoaders(segmentLoader, mediaType) {
+ segmentLoader.abort();
+ segmentLoader.pause();
+
+ if (mediaType && mediaType.activePlaylistLoader) {
+ mediaType.activePlaylistLoader.pause();
+ mediaType.activePlaylistLoader = null;
+ }
+};
+/**
+ * Start loading provided segment loader and playlist loader
+ *
+ * @param {PlaylistLoader} playlistLoader
+ * PlaylistLoader to start loading
+ * @param {Object} mediaType
+ * Active media type
+ * @function startLoaders
+ */
+
+
+var startLoaders = function startLoaders(playlistLoader, mediaType) {
+ // Segment loader will be started after `loadedmetadata` or `loadedplaylist` from the
+ // playlist loader
+ mediaType.activePlaylistLoader = playlistLoader;
+ playlistLoader.load();
+};
+/**
+ * Returns a function to be called when the media group changes. It performs a
+ * non-destructive (preserve the buffer) resync of the SegmentLoader. This is because a
+ * change of group is merely a rendition switch of the same content at another encoding,
+ * rather than a change of content, such as switching audio from English to Spanish.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Handler for a non-destructive resync of SegmentLoader when the active media
+ * group changes.
+ * @function onGroupChanged
+ */
+
+
+var onGroupChanged = function onGroupChanged(type, settings) {
+ return function () {
+ var _settings$segmentLoad = settings.segmentLoaders,
+ segmentLoader = _settings$segmentLoad[type],
+ mainSegmentLoader = _settings$segmentLoad.main,
+ mediaType = settings.mediaTypes[type];
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup(activeTrack);
+ var previousActiveLoader = mediaType.activePlaylistLoader;
+ stopLoaders(segmentLoader, mediaType);
+
+ if (!activeGroup) {
+ // there is no group active
+ return;
+ }
+
+ if (!activeGroup.playlistLoader) {
+ if (previousActiveLoader) {
+ // The previous group had a playlist loader but the new active group does not
+ // this means we are switching from demuxed to muxed audio. In this case we want to
+ // do a destructive reset of the main segment loader and not restart the audio
+ // loaders.
+ mainSegmentLoader.resetEverything();
+ }
+
+ return;
+ } // Non-destructive resync
+
+
+ segmentLoader.resyncLoader();
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ };
+};
+/**
+ * Returns a function to be called when the media track changes. It performs a
+ * destructive reset of the SegmentLoader to ensure we start loading as close to
+ * currentTime as possible.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Handler for a destructive reset of SegmentLoader when the active media
+ * track changes.
+ * @function onTrackChanged
+ */
+
+
+var onTrackChanged = function onTrackChanged(type, settings) {
+ return function () {
+ var _settings$segmentLoad2 = settings.segmentLoaders,
+ segmentLoader = _settings$segmentLoad2[type],
+ mainSegmentLoader = _settings$segmentLoad2.main,
+ mediaType = settings.mediaTypes[type];
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup(activeTrack);
+ var previousActiveLoader = mediaType.activePlaylistLoader;
+ stopLoaders(segmentLoader, mediaType);
+
+ if (!activeGroup) {
+ // there is no group active so we do not want to restart loaders
+ return;
+ }
+
+ if (!activeGroup.playlistLoader) {
+ // when switching from demuxed audio/video to muxed audio/video (noted by no playlist
+ // loader for the audio group), we want to do a destructive reset of the main segment
+ // loader and not restart the audio loaders
+ mainSegmentLoader.resetEverything();
+ return;
+ }
+
+ if (previousActiveLoader === activeGroup.playlistLoader) {
+ // Nothing has actually changed. This can happen because track change events can fire
+ // multiple times for a "single" change. One for enabling the new active track, and
+ // one for disabling the track that was active
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ return;
+ }
+
+ if (segmentLoader.track) {
+ // For WebVTT, set the new text track in the segmentloader
+ segmentLoader.track(activeTrack);
+ } // destructive reset
+
+
+ segmentLoader.resetEverything();
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ };
+};
+
+var onError = {
+ /**
+ * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
+ * an error.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Error handler. Logs warning (or error if the playlist is blacklisted) to
+ * console and switches back to default audio track.
+ * @function onError.AUDIO
+ */
+ AUDIO: function AUDIO(type, settings) {
+ return function () {
+ var segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type],
+ blacklistCurrentPlaylist = settings.blacklistCurrentPlaylist;
+ stopLoaders(segmentLoader, mediaType); // switch back to default audio track
+
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup();
+ var id = (activeGroup.filter(function (group) {
+ return group["default"];
+ })[0] || activeGroup[0]).id;
+ var defaultTrack = mediaType.tracks[id];
+
+ if (activeTrack === defaultTrack) {
+ // Default track encountered an error. All we can do now is blacklist the current
+ // rendition and hope another will switch audio groups
+ blacklistCurrentPlaylist({
+ message: 'Problem encountered loading the default audio track.'
+ });
+ return;
+ }
+
+ videojs$1.log.warn('Problem encountered loading the alternate audio track.' + 'Switching back to default.');
+
+ for (var trackId in mediaType.tracks) {
+ mediaType.tracks[trackId].enabled = mediaType.tracks[trackId] === defaultTrack;
+ }
+
+ mediaType.onTrackChanged();
+ };
+ },
+
+ /**
+ * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
+ * an error.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Error handler. Logs warning to console and disables the active subtitle track
+ * @function onError.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, settings) {
+ return function () {
+ var segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type];
+ videojs$1.log.warn('Problem encountered loading the subtitle track.' + 'Disabling subtitle track.');
+ stopLoaders(segmentLoader, mediaType);
+ var track = mediaType.activeTrack();
+
+ if (track) {
+ track.mode = 'disabled';
+ }
+
+ mediaType.onTrackChanged();
+ };
+ }
+};
+var setupListeners = {
+ /**
+ * Setup event listeners for audio playlist loader
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {PlaylistLoader|null} playlistLoader
+ * PlaylistLoader to register listeners on
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function setupListeners.AUDIO
+ */
+ AUDIO: function AUDIO(type, playlistLoader, settings) {
+ if (!playlistLoader) {
+ // no playlist loader means audio will be muxed with the video
+ return;
+ }
+
+ var tech = settings.tech,
+ requestOptions = settings.requestOptions,
+ segmentLoader = settings.segmentLoaders[type];
+ playlistLoader.on('loadedmetadata', function () {
+ var media = playlistLoader.media();
+ segmentLoader.playlist(media, requestOptions); // if the video is already playing, or if this isn't a live video and preload
+ // permits, start downloading segments
+
+ if (!tech.paused() || media.endList && tech.preload() !== 'none') {
+ segmentLoader.load();
+ }
+ });
+ playlistLoader.on('loadedplaylist', function () {
+ segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running
+
+ if (!tech.paused()) {
+ segmentLoader.load();
+ }
+ });
+ playlistLoader.on('error', onError[type](type, settings));
+ },
+
+ /**
+ * Setup event listeners for subtitle playlist loader
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {PlaylistLoader|null} playlistLoader
+ * PlaylistLoader to register listeners on
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function setupListeners.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, playlistLoader, settings) {
+ var tech = settings.tech,
+ requestOptions = settings.requestOptions,
+ segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type];
+ playlistLoader.on('loadedmetadata', function () {
+ var media = playlistLoader.media();
+ segmentLoader.playlist(media, requestOptions);
+ segmentLoader.track(mediaType.activeTrack()); // if the video is already playing, or if this isn't a live video and preload
+ // permits, start downloading segments
+
+ if (!tech.paused() || media.endList && tech.preload() !== 'none') {
+ segmentLoader.load();
+ }
+ });
+ playlistLoader.on('loadedplaylist', function () {
+ segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running
+
+ if (!tech.paused()) {
+ segmentLoader.load();
+ }
+ });
+ playlistLoader.on('error', onError[type](type, settings));
+ }
+};
+var initialize = {
+ /**
+ * Setup PlaylistLoaders and AudioTracks for the audio groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize.AUDIO
+ */
+ 'AUDIO': function AUDIO(type, settings) {
+ var hls = settings.hls,
+ sourceType = settings.sourceType,
+ segmentLoader = settings.segmentLoaders[type],
+ requestOptions = settings.requestOptions,
+ mediaGroups = settings.master.mediaGroups,
+ _settings$mediaTypes$ = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$.groups,
+ tracks = _settings$mediaTypes$.tracks,
+ masterPlaylistLoader = settings.masterPlaylistLoader; // force a default if we have none
+
+ if (!mediaGroups[type] || Object.keys(mediaGroups[type]).length === 0) {
+ mediaGroups[type] = {
+ main: {
+ "default": {
+ "default": true
+ }
+ }
+ };
+ }
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ } // List of playlists that have an AUDIO attribute value matching the current
+ // group ID
+
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ var properties = mediaGroups[type][groupId][variantLabel];
+ var playlistLoader = void 0;
+
+ if (properties.resolvedUri) {
+ playlistLoader = new PlaylistLoader(properties.resolvedUri, hls, requestOptions);
+ } else if (properties.playlists && sourceType === 'dash') {
+ playlistLoader = new DashPlaylistLoader(properties.playlists[0], hls, requestOptions, masterPlaylistLoader);
+ } else {
+ // no resolvedUri means the audio is muxed with the video when using this
+ // audio track
+ playlistLoader = null;
+ }
+
+ properties = videojs$1.mergeOptions({
+ id: variantLabel,
+ playlistLoader: playlistLoader
+ }, properties);
+ setupListeners[type](type, properties.playlistLoader, settings);
+ groups[groupId].push(properties);
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = new videojs$1.AudioTrack({
+ id: variantLabel,
+ kind: audioTrackKind_(properties),
+ enabled: false,
+ language: properties.language,
+ "default": properties["default"],
+ label: variantLabel
+ });
+ tracks[variantLabel] = track;
+ }
+ }
+ } // setup single error event handler for the segment loader
+
+
+ segmentLoader.on('error', onError[type](type, settings));
+ },
+
+ /**
+ * Setup PlaylistLoaders and TextTracks for the subtitle groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize.SUBTITLES
+ */
+ 'SUBTITLES': function SUBTITLES(type, settings) {
+ var tech = settings.tech,
+ hls = settings.hls,
+ sourceType = settings.sourceType,
+ segmentLoader = settings.segmentLoaders[type],
+ requestOptions = settings.requestOptions,
+ mediaGroups = settings.master.mediaGroups,
+ _settings$mediaTypes$2 = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$2.groups,
+ tracks = _settings$mediaTypes$2.tracks,
+ masterPlaylistLoader = settings.masterPlaylistLoader;
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ if (mediaGroups[type][groupId][variantLabel].forced) {
+ // Subtitle playlists with the forced attribute are not selectable in Safari.
+ // According to Apple's HLS Authoring Specification:
+ // If content has forced subtitles and regular subtitles in a given language,
+ // the regular subtitles track in that language MUST contain both the forced
+ // subtitles and the regular subtitles for that language.
+ // Because of this requirement and that Safari does not add forced subtitles,
+ // forced subtitles are skipped here to maintain consistent experience across
+ // all platforms
+ continue;
+ }
+
+ var properties = mediaGroups[type][groupId][variantLabel];
+ var playlistLoader = void 0;
+
+ if (sourceType === 'hls') {
+ playlistLoader = new PlaylistLoader(properties.resolvedUri, hls, requestOptions);
+ } else if (sourceType === 'dash') {
+ playlistLoader = new DashPlaylistLoader(properties.playlists[0], hls, requestOptions, masterPlaylistLoader);
+ }
+
+ properties = videojs$1.mergeOptions({
+ id: variantLabel,
+ playlistLoader: playlistLoader
+ }, properties);
+ setupListeners[type](type, properties.playlistLoader, settings);
+ groups[groupId].push(properties);
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = tech.addRemoteTextTrack({
+ id: variantLabel,
+ kind: 'subtitles',
+ "default": properties["default"] && properties.autoselect,
+ language: properties.language,
+ label: variantLabel
+ }, false).track;
+ tracks[variantLabel] = track;
+ }
+ }
+ } // setup single error event handler for the segment loader
+
+
+ segmentLoader.on('error', onError[type](type, settings));
+ },
+
+ /**
+ * Setup TextTracks for the closed-caption groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize['CLOSED-CAPTIONS']
+ */
+ 'CLOSED-CAPTIONS': function CLOSEDCAPTIONS(type, settings) {
+ var tech = settings.tech,
+ mediaGroups = settings.master.mediaGroups,
+ _settings$mediaTypes$3 = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$3.groups,
+ tracks = _settings$mediaTypes$3.tracks;
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ var properties = mediaGroups[type][groupId][variantLabel]; // We only support CEA608 captions for now, so ignore anything that
+ // doesn't use a CCx INSTREAM-ID
+
+ if (!properties.instreamId.match(/CC\d/)) {
+ continue;
+ } // No PlaylistLoader is required for Closed-Captions because the captions are
+ // embedded within the video stream
+
+
+ groups[groupId].push(videojs$1.mergeOptions({
+ id: variantLabel
+ }, properties));
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = tech.addRemoteTextTrack({
+ id: properties.instreamId,
+ kind: 'captions',
+ "default": properties["default"] && properties.autoselect,
+ language: properties.language,
+ label: variantLabel
+ }, false).track;
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+ }
+};
+/**
+ * Returns a function used to get the active group of the provided type
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media group for the provided type. Takes an
+ * optional parameter {TextTrack} track. If no track is provided, a list of all
+ * variants in the group, otherwise the variant corresponding to the provided
+ * track is returned.
+ * @function activeGroup
+ */
+
+var activeGroup = function activeGroup(type, settings) {
+ return function (track) {
+ var masterPlaylistLoader = settings.masterPlaylistLoader,
+ groups = settings.mediaTypes[type].groups;
+ var media = masterPlaylistLoader.media();
+
+ if (!media) {
+ return null;
+ }
+
+ var variants = null;
+
+ if (media.attributes[type]) {
+ variants = groups[media.attributes[type]];
+ }
+
+ variants = variants || groups.main;
+
+ if (typeof track === 'undefined') {
+ return variants;
+ }
+
+ if (track === null) {
+ // An active track was specified so a corresponding group is expected. track === null
+ // means no track is currently active so there is no corresponding group
+ return null;
+ }
+
+ return variants.filter(function (props) {
+ return props.id === track.id;
+ })[0] || null;
+ };
+};
+
+var activeTrack = {
+ /**
+ * Returns a function used to get the active track of type provided
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media track for the provided type. Returns
+ * null if no track is active
+ * @function activeTrack.AUDIO
+ */
+ AUDIO: function AUDIO(type, settings) {
+ return function () {
+ var tracks = settings.mediaTypes[type].tracks;
+
+ for (var id in tracks) {
+ if (tracks[id].enabled) {
+ return tracks[id];
+ }
+ }
+
+ return null;
+ };
+ },
+
+ /**
+ * Returns a function used to get the active track of type provided
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media track for the provided type. Returns
+ * null if no track is active
+ * @function activeTrack.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, settings) {
+ return function () {
+ var tracks = settings.mediaTypes[type].tracks;
+
+ for (var id in tracks) {
+ if (tracks[id].mode === 'showing') {
+ return tracks[id];
+ }
+ }
+
+ return null;
+ };
+ }
+};
+/**
+ * Setup PlaylistLoaders and Tracks for media groups (Audio, Subtitles,
+ * Closed-Captions) specified in the master manifest.
+ *
+ * @param {Object} settings
+ * Object containing required information for setting up the media groups
+ * @param {SegmentLoader} settings.segmentLoaders.AUDIO
+ * Audio segment loader
+ * @param {SegmentLoader} settings.segmentLoaders.SUBTITLES
+ * Subtitle segment loader
+ * @param {SegmentLoader} settings.segmentLoaders.main
+ * Main segment loader
+ * @param {Tech} settings.tech
+ * The tech of the player
+ * @param {Object} settings.requestOptions
+ * XHR request options used by the segment loaders
+ * @param {PlaylistLoader} settings.masterPlaylistLoader
+ * PlaylistLoader for the master source
+ * @param {HlsHandler} settings.hls
+ * HLS SourceHandler
+ * @param {Object} settings.master
+ * The parsed master manifest
+ * @param {Object} settings.mediaTypes
+ * Object to store the loaders, tracks, and utility methods for each media type
+ * @param {Function} settings.blacklistCurrentPlaylist
+ * Blacklists the current rendition and forces a rendition switch.
+ * @function setupMediaGroups
+ */
+
+var setupMediaGroups = function setupMediaGroups(settings) {
+ ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {
+ initialize[type](type, settings);
+ });
+ var mediaTypes = settings.mediaTypes,
+ masterPlaylistLoader = settings.masterPlaylistLoader,
+ tech = settings.tech,
+ hls = settings.hls; // setup active group and track getters and change event handlers
+
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ mediaTypes[type].activeGroup = activeGroup(type, settings);
+ mediaTypes[type].activeTrack = activeTrack[type](type, settings);
+ mediaTypes[type].onGroupChanged = onGroupChanged(type, settings);
+ mediaTypes[type].onTrackChanged = onTrackChanged(type, settings);
+ }); // DO NOT enable the default subtitle or caption track.
+ // DO enable the default audio track
+
+ var audioGroup = mediaTypes.AUDIO.activeGroup();
+ var groupId = (audioGroup.filter(function (group) {
+ return group["default"];
+ })[0] || audioGroup[0]).id;
+ mediaTypes.AUDIO.tracks[groupId].enabled = true;
+ mediaTypes.AUDIO.onTrackChanged();
+ masterPlaylistLoader.on('mediachange', function () {
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ return mediaTypes[type].onGroupChanged();
+ });
+ }); // custom audio track change event handler for usage event
+
+ var onAudioTrackChanged = function onAudioTrackChanged() {
+ mediaTypes.AUDIO.onTrackChanged();
+ tech.trigger({
+ type: 'usage',
+ name: 'hls-audio-change'
+ });
+ };
+
+ tech.audioTracks().addEventListener('change', onAudioTrackChanged);
+ tech.remoteTextTracks().addEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
+ hls.on('dispose', function () {
+ tech.audioTracks().removeEventListener('change', onAudioTrackChanged);
+ tech.remoteTextTracks().removeEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
+ }); // clear existing audio tracks and add the ones we just created
+
+ tech.clearTracks('audio');
+
+ for (var id in mediaTypes.AUDIO.tracks) {
+ tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id]);
+ }
+};
+/**
+ * Creates skeleton object used to store the loaders, tracks, and utility methods for each
+ * media type
+ *
+ * @return {Object}
+ * Object to store the loaders, tracks, and utility methods for each media type
+ * @function createMediaTypes
+ */
+
+
+var createMediaTypes = function createMediaTypes() {
+ var mediaTypes = {};
+ ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {
+ mediaTypes[type] = {
+ groups: {},
+ tracks: {},
+ activePlaylistLoader: null,
+ activeGroup: noop,
+ activeTrack: noop,
+ onGroupChanged: noop,
+ onTrackChanged: noop
+ };
+ });
+ return mediaTypes;
+};
+/**
+ * @file master-playlist-controller.js
+ */
+
+
+var ABORT_EARLY_BLACKLIST_SECONDS = 60 * 2;
+var Hls = void 0; // SegmentLoader stats that need to have each loader's
+// values summed to calculate the final value
+
+var loaderStats = ['mediaRequests', 'mediaRequestsAborted', 'mediaRequestsTimedout', 'mediaRequestsErrored', 'mediaTransferDuration', 'mediaBytesTransferred'];
+
+var sumLoaderStat = function sumLoaderStat(stat) {
+ return this.audioSegmentLoader_[stat] + this.mainSegmentLoader_[stat];
+};
+/**
+ * the master playlist controller controller all interactons
+ * between playlists and segmentloaders. At this time this mainly
+ * involves a master playlist and a series of audio playlists
+ * if they are available
+ *
+ * @class MasterPlaylistController
+ * @extends videojs.EventTarget
+ */
+
+
+var MasterPlaylistController = function (_videojs$EventTarget) {
+ inherits(MasterPlaylistController, _videojs$EventTarget);
+
+ function MasterPlaylistController(options) {
+ classCallCheck(this, MasterPlaylistController);
+
+ var _this = possibleConstructorReturn(this, (MasterPlaylistController.__proto__ || Object.getPrototypeOf(MasterPlaylistController)).call(this));
+
+ var url = options.url,
+ handleManifestRedirects = options.handleManifestRedirects,
+ withCredentials = options.withCredentials,
+ tech = options.tech,
+ bandwidth = options.bandwidth,
+ externHls = options.externHls,
+ useCueTags = options.useCueTags,
+ blacklistDuration = options.blacklistDuration,
+ enableLowInitialPlaylist = options.enableLowInitialPlaylist,
+ sourceType = options.sourceType,
+ seekTo = options.seekTo,
+ cacheEncryptionKeys = options.cacheEncryptionKeys;
+
+ if (!url) {
+ throw new Error('A non-empty playlist URL is required');
+ }
+
+ Hls = externHls;
+ _this.withCredentials = withCredentials;
+ _this.tech_ = tech;
+ _this.hls_ = tech.hls;
+ _this.seekTo_ = seekTo;
+ _this.sourceType_ = sourceType;
+ _this.useCueTags_ = useCueTags;
+ _this.blacklistDuration = blacklistDuration;
+ _this.enableLowInitialPlaylist = enableLowInitialPlaylist;
+
+ if (_this.useCueTags_) {
+ _this.cueTagsTrack_ = _this.tech_.addTextTrack('metadata', 'ad-cues');
+ _this.cueTagsTrack_.inBandMetadataTrackDispatchType = '';
+ }
+
+ _this.requestOptions_ = {
+ withCredentials: withCredentials,
+ handleManifestRedirects: handleManifestRedirects,
+ timeout: null
+ };
+ _this.mediaTypes_ = createMediaTypes();
+ _this.mediaSource = new videojs$1.MediaSource(); // load the media source into the player
+
+ _this.mediaSource.addEventListener('sourceopen', _this.handleSourceOpen_.bind(_this));
+
+ _this.seekable_ = videojs$1.createTimeRanges();
+
+ _this.hasPlayed_ = function () {
+ return false;
+ };
+
+ _this.syncController_ = new SyncController(options);
+ _this.segmentMetadataTrack_ = tech.addRemoteTextTrack({
+ kind: 'metadata',
+ label: 'segment-metadata'
+ }, false).track;
+ _this.decrypter_ = new Decrypter$1();
+ _this.inbandTextTracks_ = {};
+ var segmentLoaderSettings = {
+ hls: _this.hls_,
+ mediaSource: _this.mediaSource,
+ currentTime: _this.tech_.currentTime.bind(_this.tech_),
+ seekable: function seekable$$1() {
+ return _this.seekable();
+ },
+ seeking: function seeking() {
+ return _this.tech_.seeking();
+ },
+ duration: function duration$$1() {
+ return _this.mediaSource.duration;
+ },
+ hasPlayed: function hasPlayed() {
+ return _this.hasPlayed_();
+ },
+ goalBufferLength: function goalBufferLength() {
+ return _this.goalBufferLength();
+ },
+ bandwidth: bandwidth,
+ syncController: _this.syncController_,
+ decrypter: _this.decrypter_,
+ sourceType: _this.sourceType_,
+ inbandTextTracks: _this.inbandTextTracks_,
+ cacheEncryptionKeys: cacheEncryptionKeys
+ };
+ _this.masterPlaylistLoader_ = _this.sourceType_ === 'dash' ? new DashPlaylistLoader(url, _this.hls_, _this.requestOptions_) : new PlaylistLoader(url, _this.hls_, _this.requestOptions_);
+
+ _this.setupMasterPlaylistLoaderListeners_(); // setup segment loaders
+ // combined audio/video or just video when alternate audio track is selected
+
+
+ _this.mainSegmentLoader_ = new SegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ segmentMetadataTrack: _this.segmentMetadataTrack_,
+ loaderType: 'main'
+ }), options); // alternate audio track
+
+ _this.audioSegmentLoader_ = new SegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ loaderType: 'audio'
+ }), options);
+ _this.subtitleSegmentLoader_ = new VTTSegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ loaderType: 'vtt'
+ }), options);
+
+ _this.setupSegmentLoaderListeners_(); // Create SegmentLoader stat-getters
+
+
+ loaderStats.forEach(function (stat) {
+ _this[stat + '_'] = sumLoaderStat.bind(_this, stat);
+ });
+ _this.logger_ = logger('MPC');
+
+ _this.masterPlaylistLoader_.load();
+
+ return _this;
+ }
+ /**
+ * Register event handlers on the master playlist loader. A helper
+ * function for construction time.
+ *
+ * @private
+ */
+
+
+ createClass(MasterPlaylistController, [{
+ key: 'setupMasterPlaylistLoaderListeners_',
+ value: function setupMasterPlaylistLoaderListeners_() {
+ var _this2 = this;
+
+ this.masterPlaylistLoader_.on('loadedmetadata', function () {
+ var media = _this2.masterPlaylistLoader_.media();
+
+ var requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to
+ // timeout the request.
+
+ if (isLowestEnabledRendition(_this2.masterPlaylistLoader_.master, _this2.masterPlaylistLoader_.media())) {
+ _this2.requestOptions_.timeout = 0;
+ } else {
+ _this2.requestOptions_.timeout = requestTimeout;
+ } // if this isn't a live video and preload permits, start
+ // downloading segments
+
+
+ if (media.endList && _this2.tech_.preload() !== 'none') {
+ _this2.mainSegmentLoader_.playlist(media, _this2.requestOptions_);
+
+ _this2.mainSegmentLoader_.load();
+ }
+
+ setupMediaGroups({
+ sourceType: _this2.sourceType_,
+ segmentLoaders: {
+ AUDIO: _this2.audioSegmentLoader_,
+ SUBTITLES: _this2.subtitleSegmentLoader_,
+ main: _this2.mainSegmentLoader_
+ },
+ tech: _this2.tech_,
+ requestOptions: _this2.requestOptions_,
+ masterPlaylistLoader: _this2.masterPlaylistLoader_,
+ hls: _this2.hls_,
+ master: _this2.master(),
+ mediaTypes: _this2.mediaTypes_,
+ blacklistCurrentPlaylist: _this2.blacklistCurrentPlaylist.bind(_this2)
+ });
+
+ _this2.triggerPresenceUsage_(_this2.master(), media);
+
+ try {
+ _this2.setupSourceBuffers_();
+ } catch (e) {
+ videojs$1.log.warn('Failed to create SourceBuffers', e);
+ return _this2.mediaSource.endOfStream('decode');
+ }
+
+ _this2.setupFirstPlay();
+
+ if (!_this2.mediaTypes_.AUDIO.activePlaylistLoader || _this2.mediaTypes_.AUDIO.activePlaylistLoader.media()) {
+ _this2.trigger('selectedinitialmedia');
+ } else {
+ // We must wait for the active audio playlist loader to
+ // finish setting up before triggering this event so the
+ // representations API and EME setup is correct
+ _this2.mediaTypes_.AUDIO.activePlaylistLoader.one('loadedmetadata', function () {
+ _this2.trigger('selectedinitialmedia');
+ });
+ }
+ });
+ this.masterPlaylistLoader_.on('loadedplaylist', function () {
+ var updatedPlaylist = _this2.masterPlaylistLoader_.media();
+
+ if (!updatedPlaylist) {
+ // blacklist any variants that are not supported by the browser before selecting
+ // an initial media as the playlist selectors do not consider browser support
+ _this2.excludeUnsupportedVariants_();
+
+ var selectedMedia = void 0;
+
+ if (_this2.enableLowInitialPlaylist) {
+ selectedMedia = _this2.selectInitialPlaylist();
+ }
+
+ if (!selectedMedia) {
+ selectedMedia = _this2.selectPlaylist();
+ }
+
+ _this2.initialMedia_ = selectedMedia;
+
+ _this2.masterPlaylistLoader_.media(_this2.initialMedia_);
+
+ return;
+ }
+
+ if (_this2.useCueTags_) {
+ _this2.updateAdCues_(updatedPlaylist);
+ } // TODO: Create a new event on the PlaylistLoader that signals
+ // that the segments have changed in some way and use that to
+ // update the SegmentLoader instead of doing it twice here and
+ // on `mediachange`
+
+
+ _this2.mainSegmentLoader_.playlist(updatedPlaylist, _this2.requestOptions_);
+
+ _this2.updateDuration(); // If the player isn't paused, ensure that the segment loader is running,
+ // as it is possible that it was temporarily stopped while waiting for
+ // a playlist (e.g., in case the playlist errored and we re-requested it).
+
+
+ if (!_this2.tech_.paused()) {
+ _this2.mainSegmentLoader_.load();
+
+ if (_this2.audioSegmentLoader_) {
+ _this2.audioSegmentLoader_.load();
+ }
+ }
+
+ if (!updatedPlaylist.endList) {
+ var addSeekableRange = function addSeekableRange() {
+ var seekable$$1 = _this2.seekable();
+
+ if (seekable$$1.length !== 0) {
+ _this2.mediaSource.addSeekableRange_(seekable$$1.start(0), seekable$$1.end(0));
+ }
+ };
+
+ if (_this2.duration() !== Infinity) {
+ var onDurationchange = function onDurationchange() {
+ if (_this2.duration() === Infinity) {
+ addSeekableRange();
+ } else {
+ _this2.tech_.one('durationchange', onDurationchange);
+ }
+ };
+
+ _this2.tech_.one('durationchange', onDurationchange);
+ } else {
+ addSeekableRange();
+ }
+ }
+ });
+ this.masterPlaylistLoader_.on('error', function () {
+ _this2.blacklistCurrentPlaylist(_this2.masterPlaylistLoader_.error);
+ });
+ this.masterPlaylistLoader_.on('mediachanging', function () {
+ _this2.mainSegmentLoader_.abort();
+
+ _this2.mainSegmentLoader_.pause();
+ });
+ this.masterPlaylistLoader_.on('mediachange', function () {
+ var media = _this2.masterPlaylistLoader_.media();
+
+ var requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to
+ // timeout the request.
+
+ if (isLowestEnabledRendition(_this2.masterPlaylistLoader_.master, _this2.masterPlaylistLoader_.media())) {
+ _this2.requestOptions_.timeout = 0;
+ } else {
+ _this2.requestOptions_.timeout = requestTimeout;
+ } // TODO: Create a new event on the PlaylistLoader that signals
+ // that the segments have changed in some way and use that to
+ // update the SegmentLoader instead of doing it twice here and
+ // on `loadedplaylist`
+
+
+ _this2.mainSegmentLoader_.playlist(media, _this2.requestOptions_);
+
+ _this2.mainSegmentLoader_.load();
+
+ _this2.tech_.trigger({
+ type: 'mediachange',
+ bubbles: true
+ });
+ });
+ this.masterPlaylistLoader_.on('playlistunchanged', function () {
+ var updatedPlaylist = _this2.masterPlaylistLoader_.media();
+
+ var playlistOutdated = _this2.stuckAtPlaylistEnd_(updatedPlaylist);
+
+ if (playlistOutdated) {
+ // Playlist has stopped updating and we're stuck at its end. Try to
+ // blacklist it and switch to another playlist in the hope that that
+ // one is updating (and give the player a chance to re-adjust to the
+ // safe live point).
+ _this2.blacklistCurrentPlaylist({
+ message: 'Playlist no longer updating.'
+ }); // useful for monitoring QoS
+
+
+ _this2.tech_.trigger('playliststuck');
+ }
+ });
+ this.masterPlaylistLoader_.on('renditiondisabled', function () {
+ _this2.tech_.trigger({
+ type: 'usage',
+ name: 'hls-rendition-disabled'
+ });
+ });
+ this.masterPlaylistLoader_.on('renditionenabled', function () {
+ _this2.tech_.trigger({
+ type: 'usage',
+ name: 'hls-rendition-enabled'
+ });
+ });
+ }
+ /**
+ * A helper function for triggerring presence usage events once per source
+ *
+ * @private
+ */
+
+ }, {
+ key: 'triggerPresenceUsage_',
+ value: function triggerPresenceUsage_(master, media) {
+ var mediaGroups = master.mediaGroups || {};
+ var defaultDemuxed = true;
+ var audioGroupKeys = Object.keys(mediaGroups.AUDIO);
+
+ for (var mediaGroup in mediaGroups.AUDIO) {
+ for (var label in mediaGroups.AUDIO[mediaGroup]) {
+ var properties = mediaGroups.AUDIO[mediaGroup][label];
+
+ if (!properties.uri) {
+ defaultDemuxed = false;
+ }
+ }
+ }
+
+ if (defaultDemuxed) {
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-demuxed'
+ });
+ }
+
+ if (Object.keys(mediaGroups.SUBTITLES).length) {
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-webvtt'
+ });
+ }
+
+ if (Hls.Playlist.isAes(media)) {
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-aes'
+ });
+ }
+
+ if (Hls.Playlist.isFmp4(media)) {
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-fmp4'
+ });
+ }
+
+ if (audioGroupKeys.length && Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length > 1) {
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-alternate-audio'
+ });
+ }
+
+ if (this.useCueTags_) {
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-playlist-cue-tags'
+ });
+ }
+ }
+ /**
+ * Register event handlers on the segment loaders. A helper function
+ * for construction time.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'setupSegmentLoaderListeners_',
+ value: function setupSegmentLoaderListeners_() {
+ var _this3 = this;
+
+ this.mainSegmentLoader_.on('bandwidthupdate', function () {
+ var nextPlaylist = _this3.selectPlaylist();
+
+ var currentPlaylist = _this3.masterPlaylistLoader_.media();
+
+ var buffered = _this3.tech_.buffered();
+
+ var forwardBuffer = buffered.length ? buffered.end(buffered.length - 1) - _this3.tech_.currentTime() : 0;
+
+ var bufferLowWaterLine = _this3.bufferLowWaterLine(); // If the playlist is live, then we want to not take low water line into account.
+ // This is because in LIVE, the player plays 3 segments from the end of the
+ // playlist, and if `BUFFER_LOW_WATER_LINE` is greater than the duration availble
+ // in those segments, a viewer will never experience a rendition upswitch.
+
+
+ if (!currentPlaylist.endList || // For the same reason as LIVE, we ignore the low water line when the VOD
+ // duration is below the max potential low water line
+ _this3.duration() < Config.MAX_BUFFER_LOW_WATER_LINE || // we want to switch down to lower resolutions quickly to continue playback, but
+ nextPlaylist.attributes.BANDWIDTH < currentPlaylist.attributes.BANDWIDTH || // ensure we have some buffer before we switch up to prevent us running out of
+ // buffer while loading a higher rendition.
+ forwardBuffer >= bufferLowWaterLine) {
+ _this3.masterPlaylistLoader_.media(nextPlaylist);
+ }
+
+ _this3.tech_.trigger('bandwidthupdate');
+ });
+ this.mainSegmentLoader_.on('progress', function () {
+ _this3.trigger('progress');
+ });
+ this.mainSegmentLoader_.on('error', function () {
+ _this3.blacklistCurrentPlaylist(_this3.mainSegmentLoader_.error());
+ });
+ this.mainSegmentLoader_.on('syncinfoupdate', function () {
+ _this3.onSyncInfoUpdate_();
+ });
+ this.mainSegmentLoader_.on('timestampoffset', function () {
+ _this3.tech_.trigger({
+ type: 'usage',
+ name: 'hls-timestamp-offset'
+ });
+ });
+ this.audioSegmentLoader_.on('syncinfoupdate', function () {
+ _this3.onSyncInfoUpdate_();
+ });
+ this.mainSegmentLoader_.on('ended', function () {
+ _this3.onEndOfStream();
+ });
+ this.mainSegmentLoader_.on('earlyabort', function () {
+ _this3.blacklistCurrentPlaylist({
+ message: 'Aborted early because there isn\'t enough bandwidth to complete the ' + 'request without rebuffering.'
+ }, ABORT_EARLY_BLACKLIST_SECONDS);
+ });
+ this.mainSegmentLoader_.on('reseteverything', function () {
+ // If playing an MTS stream, a videojs.MediaSource is listening for
+ // hls-reset to reset caption parsing state in the transmuxer
+ _this3.tech_.trigger('hls-reset');
+ });
+ this.mainSegmentLoader_.on('segmenttimemapping', function (event) {
+ // If playing an MTS stream in html, a videojs.MediaSource is listening for
+ // hls-segment-time-mapping update its internal mapping of stream to display time
+ _this3.tech_.trigger({
+ type: 'hls-segment-time-mapping',
+ mapping: event.mapping
+ });
+ });
+ this.audioSegmentLoader_.on('ended', function () {
+ _this3.onEndOfStream();
+ });
+ }
+ }, {
+ key: 'mediaSecondsLoaded_',
+ value: function mediaSecondsLoaded_() {
+ return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded + this.mainSegmentLoader_.mediaSecondsLoaded);
+ }
+ /**
+ * Call load on our SegmentLoaders
+ */
+
+ }, {
+ key: 'load',
+ value: function load() {
+ this.mainSegmentLoader_.load();
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.load();
+ }
+
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.load();
+ }
+ }
+ /**
+ * Re-tune playback quality level for the current player
+ * conditions without performing destructive actions, like
+ * removing already buffered content
+ *
+ * @private
+ */
+
+ }, {
+ key: 'smoothQualityChange_',
+ value: function smoothQualityChange_() {
+ var media = this.selectPlaylist();
+
+ if (media !== this.masterPlaylistLoader_.media()) {
+ this.masterPlaylistLoader_.media(media);
+ this.mainSegmentLoader_.resetLoader(); // don't need to reset audio as it is reset when media changes
+ }
+ }
+ /**
+ * Re-tune playback quality level for the current player
+ * conditions. This method will perform destructive actions like removing
+ * already buffered content in order to readjust the currently active
+ * playlist quickly. This is good for manual quality changes
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fastQualityChange_',
+ value: function fastQualityChange_() {
+ var _this4 = this;
+
+ var media = this.selectPlaylist();
+
+ if (media === this.masterPlaylistLoader_.media()) {
+ return;
+ }
+
+ this.masterPlaylistLoader_.media(media); // Delete all buffered data to allow an immediate quality switch, then seek to give
+ // the browser a kick to remove any cached frames from the previous rendtion (.04 seconds
+ // ahead is roughly the minimum that will accomplish this across a variety of content
+ // in IE and Edge, but seeking in place is sufficient on all other browsers)
+ // Edge/IE bug: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/14600375/
+ // Chrome bug: https://bugs.chromium.org/p/chromium/issues/detail?id=651904
+
+ this.mainSegmentLoader_.resetEverything(function () {
+ // Since this is not a typical seek, we avoid the seekTo method which can cause segments
+ // from the previously enabled rendition to load before the new playlist has finished loading
+ if (videojs$1.browser.IE_VERSION || videojs$1.browser.IS_EDGE) {
+ _this4.tech_.setCurrentTime(_this4.tech_.currentTime() + 0.04);
+ } else {
+ _this4.tech_.setCurrentTime(_this4.tech_.currentTime());
+ }
+ }); // don't need to reset audio as it is reset when media changes
+ }
+ /**
+ * Begin playback.
+ */
+
+ }, {
+ key: 'play',
+ value: function play() {
+ if (this.setupFirstPlay()) {
+ return;
+ }
+
+ if (this.tech_.ended()) {
+ this.seekTo_(0);
+ }
+
+ if (this.hasPlayed_()) {
+ this.load();
+ }
+
+ var seekable$$1 = this.tech_.seekable(); // if the viewer has paused and we fell out of the live window,
+ // seek forward to the live point
+
+ if (this.tech_.duration() === Infinity) {
+ if (this.tech_.currentTime() < seekable$$1.start(0)) {
+ return this.seekTo_(seekable$$1.end(seekable$$1.length - 1));
+ }
+ }
+ }
+ /**
+ * Seek to the latest media position if this is a live video and the
+ * player and video are loaded and initialized.
+ */
+
+ }, {
+ key: 'setupFirstPlay',
+ value: function setupFirstPlay() {
+ var _this5 = this;
+
+ var media = this.masterPlaylistLoader_.media(); // Check that everything is ready to begin buffering for the first call to play
+ // If 1) there is no active media
+ // 2) the player is paused
+ // 3) the first play has already been setup
+ // then exit early
+
+ if (!media || this.tech_.paused() || this.hasPlayed_()) {
+ return false;
+ } // when the video is a live stream
+
+
+ if (!media.endList) {
+ var seekable$$1 = this.seekable();
+
+ if (!seekable$$1.length) {
+ // without a seekable range, the player cannot seek to begin buffering at the live
+ // point
+ return false;
+ }
+
+ if (videojs$1.browser.IE_VERSION && this.tech_.readyState() === 0) {
+ // IE11 throws an InvalidStateError if you try to set currentTime while the
+ // readyState is 0, so it must be delayed until the tech fires loadedmetadata.
+ this.tech_.one('loadedmetadata', function () {
+ _this5.trigger('firstplay');
+
+ _this5.seekTo_(seekable$$1.end(0));
+
+ _this5.hasPlayed_ = function () {
+ return true;
+ };
+ });
+ return false;
+ } // trigger firstplay to inform the source handler to ignore the next seek event
+
+
+ this.trigger('firstplay'); // seek to the live point
+
+ this.seekTo_(seekable$$1.end(0));
+ }
+
+ this.hasPlayed_ = function () {
+ return true;
+ }; // we can begin loading now that everything is ready
+
+
+ this.load();
+ return true;
+ }
+ /**
+ * handle the sourceopen event on the MediaSource
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSourceOpen_',
+ value: function handleSourceOpen_() {
+ // Only attempt to create the source buffer if none already exist.
+ // handleSourceOpen is also called when we are "re-opening" a source buffer
+ // after `endOfStream` has been called (in response to a seek for instance)
+ try {
+ this.setupSourceBuffers_();
+ } catch (e) {
+ videojs$1.log.warn('Failed to create Source Buffers', e);
+ return this.mediaSource.endOfStream('decode');
+ } // if autoplay is enabled, begin playback. This is duplicative of
+ // code in video.js but is required because play() must be invoked
+ // *after* the media source has opened.
+
+
+ if (this.tech_.autoplay()) {
+ var playPromise = this.tech_.play(); // Catch/silence error when a pause interrupts a play request
+ // on browsers which return a promise
+
+ if (typeof playPromise !== 'undefined' && typeof playPromise.then === 'function') {
+ playPromise.then(null, function (e) {});
+ }
+ }
+
+ this.trigger('sourceopen');
+ }
+ /**
+ * Calls endOfStream on the media source when all active stream types have called
+ * endOfStream
+ *
+ * @param {string} streamType
+ * Stream type of the segment loader that called endOfStream
+ * @private
+ */
+
+ }, {
+ key: 'onEndOfStream',
+ value: function onEndOfStream() {
+ var isEndOfStream = this.mainSegmentLoader_.ended_;
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ // if the audio playlist loader exists, then alternate audio is active
+ if (!this.mainSegmentLoader_.startingMedia_ || this.mainSegmentLoader_.startingMedia_.containsVideo) {
+ // if we do not know if the main segment loader contains video yet or if we
+ // definitively know the main segment loader contains video, then we need to wait
+ // for both main and audio segment loaders to call endOfStream
+ isEndOfStream = isEndOfStream && this.audioSegmentLoader_.ended_;
+ } else {
+ // otherwise just rely on the audio loader
+ isEndOfStream = this.audioSegmentLoader_.ended_;
+ }
+ }
+
+ if (!isEndOfStream) {
+ return;
+ }
+
+ this.logger_('calling mediaSource.endOfStream()'); // on chrome calling endOfStream can sometimes cause an exception,
+ // even when the media source is in a valid state.
+
+ try {
+ this.mediaSource.endOfStream();
+ } catch (e) {
+ videojs$1.log.warn('Failed to call media source endOfStream', e);
+ }
+ }
+ /**
+ * Check if a playlist has stopped being updated
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist has stopped being updated or not
+ */
+
+ }, {
+ key: 'stuckAtPlaylistEnd_',
+ value: function stuckAtPlaylistEnd_(playlist) {
+ var seekable$$1 = this.seekable();
+
+ if (!seekable$$1.length) {
+ // playlist doesn't have enough information to determine whether we are stuck
+ return false;
+ }
+
+ var expired = this.syncController_.getExpiredTime(playlist, this.mediaSource.duration);
+
+ if (expired === null) {
+ return false;
+ } // does not use the safe live end to calculate playlist end, since we
+ // don't want to say we are stuck while there is still content
+
+
+ var absolutePlaylistEnd = Hls.Playlist.playlistEnd(playlist, expired);
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+
+ if (!buffered.length) {
+ // return true if the playhead reached the absolute end of the playlist
+ return absolutePlaylistEnd - currentTime <= SAFE_TIME_DELTA;
+ }
+
+ var bufferedEnd = buffered.end(buffered.length - 1); // return true if there is too little buffer left and buffer has reached absolute
+ // end of playlist
+
+ return bufferedEnd - currentTime <= SAFE_TIME_DELTA && absolutePlaylistEnd - bufferedEnd <= SAFE_TIME_DELTA;
+ }
+ /**
+ * Blacklists a playlist when an error occurs for a set amount of time
+ * making it unavailable for selection by the rendition selection algorithm
+ * and then forces a new playlist (rendition) selection.
+ *
+ * @param {Object=} error an optional error that may include the playlist
+ * to blacklist
+ * @param {Number=} blacklistDuration an optional number of seconds to blacklist the
+ * playlist
+ */
+
+ }, {
+ key: 'blacklistCurrentPlaylist',
+ value: function blacklistCurrentPlaylist() {
+ var error = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var blacklistDuration = arguments[1];
+ var currentPlaylist = void 0;
+ var nextPlaylist = void 0; // If the `error` was generated by the playlist loader, it will contain
+ // the playlist we were trying to load (but failed) and that should be
+ // blacklisted instead of the currently selected playlist which is likely
+ // out-of-date in this scenario
+
+ currentPlaylist = error.playlist || this.masterPlaylistLoader_.media();
+ blacklistDuration = blacklistDuration || error.blacklistDuration || this.blacklistDuration; // If there is no current playlist, then an error occurred while we were
+ // trying to load the master OR while we were disposing of the tech
+
+ if (!currentPlaylist) {
+ this.error = error;
+
+ try {
+ return this.mediaSource.endOfStream('network');
+ } catch (e) {
+ return this.trigger('error');
+ }
+ }
+
+ var isFinalRendition = this.masterPlaylistLoader_.master.playlists.filter(isEnabled).length === 1;
+ var playlists = this.masterPlaylistLoader_.master.playlists;
+
+ if (playlists.length === 1) {
+ // Never blacklisting this playlist because it's the only playlist
+ videojs$1.log.warn('Problem encountered with the current ' + 'HLS playlist. Trying again since it is the only playlist.');
+ this.tech_.trigger('retryplaylist');
+ return this.masterPlaylistLoader_.load(isFinalRendition);
+ }
+
+ if (isFinalRendition) {
+ // Since we're on the final non-blacklisted playlist, and we're about to blacklist
+ // it, instead of erring the player or retrying this playlist, clear out the current
+ // blacklist. This allows other playlists to be attempted in case any have been
+ // fixed.
+ videojs$1.log.warn('Removing all playlists from the blacklist because the last ' + 'rendition is about to be blacklisted.');
+ playlists.forEach(function (playlist) {
+ if (playlist.excludeUntil !== Infinity) {
+ delete playlist.excludeUntil;
+ }
+ }); // Technically we are retrying a playlist, in that we are simply retrying a previous
+ // playlist. This is needed for users relying on the retryplaylist event to catch a
+ // case where the player might be stuck and looping through "dead" playlists.
+
+ this.tech_.trigger('retryplaylist');
+ } // Blacklist this playlist
+
+
+ currentPlaylist.excludeUntil = Date.now() + blacklistDuration * 1000;
+ this.tech_.trigger('blacklistplaylist');
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-rendition-blacklisted'
+ }); // Select a new playlist
+
+ nextPlaylist = this.selectPlaylist();
+ videojs$1.log.warn('Problem encountered with the current HLS playlist.' + (error.message ? ' ' + error.message : '') + ' Switching to another playlist.');
+ return this.masterPlaylistLoader_.media(nextPlaylist, isFinalRendition);
+ }
+ /**
+ * Pause all segment loaders
+ */
+
+ }, {
+ key: 'pauseLoading',
+ value: function pauseLoading() {
+ this.mainSegmentLoader_.pause();
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.pause();
+ }
+
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.pause();
+ }
+ }
+ /**
+ * set the current time on all segment loaders
+ *
+ * @param {TimeRange} currentTime the current time to set
+ * @return {TimeRange} the current time
+ */
+
+ }, {
+ key: 'setCurrentTime',
+ value: function setCurrentTime(currentTime) {
+ var buffered = findRange(this.tech_.buffered(), currentTime);
+
+ if (!(this.masterPlaylistLoader_ && this.masterPlaylistLoader_.media())) {
+ // return immediately if the metadata is not ready yet
+ return 0;
+ } // it's clearly an edge-case but don't thrown an error if asked to
+ // seek within an empty playlist
+
+
+ if (!this.masterPlaylistLoader_.media().segments) {
+ return 0;
+ } // In flash playback, the segment loaders should be reset on every seek, even
+ // in buffer seeks. If the seek location is already buffered, continue buffering as
+ // usual
+ // TODO: redo this comment
+
+
+ if (buffered && buffered.length) {
+ return currentTime;
+ } // cancel outstanding requests so we begin buffering at the new
+ // location
+
+
+ this.mainSegmentLoader_.resetEverything();
+ this.mainSegmentLoader_.abort();
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.resetEverything();
+ this.audioSegmentLoader_.abort();
+ }
+
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.resetEverything();
+ this.subtitleSegmentLoader_.abort();
+ } // start segment loader loading in case they are paused
+
+
+ this.load();
+ }
+ /**
+ * get the current duration
+ *
+ * @return {TimeRange} the duration
+ */
+
+ }, {
+ key: 'duration',
+ value: function duration$$1() {
+ if (!this.masterPlaylistLoader_) {
+ return 0;
+ }
+
+ if (this.mediaSource) {
+ return this.mediaSource.duration;
+ }
+
+ return Hls.Playlist.duration(this.masterPlaylistLoader_.media());
+ }
+ /**
+ * check the seekable range
+ *
+ * @return {TimeRange} the seekable range
+ */
+
+ }, {
+ key: 'seekable',
+ value: function seekable$$1() {
+ return this.seekable_;
+ }
+ }, {
+ key: 'onSyncInfoUpdate_',
+ value: function onSyncInfoUpdate_() {
+ var mainSeekable = void 0;
+ var audioSeekable = void 0;
+
+ if (!this.masterPlaylistLoader_) {
+ return;
+ }
+
+ var media = this.masterPlaylistLoader_.media();
+
+ if (!media) {
+ return;
+ }
+
+ var expired = this.syncController_.getExpiredTime(media, this.mediaSource.duration);
+
+ if (expired === null) {
+ // not enough information to update seekable
+ return;
+ }
+
+ mainSeekable = Hls.Playlist.seekable(media, expired);
+
+ if (mainSeekable.length === 0) {
+ return;
+ }
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ media = this.mediaTypes_.AUDIO.activePlaylistLoader.media();
+ expired = this.syncController_.getExpiredTime(media, this.mediaSource.duration);
+
+ if (expired === null) {
+ return;
+ }
+
+ audioSeekable = Hls.Playlist.seekable(media, expired);
+
+ if (audioSeekable.length === 0) {
+ return;
+ }
+ }
+
+ var oldEnd = void 0;
+ var oldStart = void 0;
+
+ if (this.seekable_ && this.seekable_.length) {
+ oldEnd = this.seekable_.end(0);
+ oldStart = this.seekable_.start(0);
+ }
+
+ if (!audioSeekable) {
+ // seekable has been calculated based on buffering video data so it
+ // can be returned directly
+ this.seekable_ = mainSeekable;
+ } else if (audioSeekable.start(0) > mainSeekable.end(0) || mainSeekable.start(0) > audioSeekable.end(0)) {
+ // seekables are pretty far off, rely on main
+ this.seekable_ = mainSeekable;
+ } else {
+ this.seekable_ = videojs$1.createTimeRanges([[audioSeekable.start(0) > mainSeekable.start(0) ? audioSeekable.start(0) : mainSeekable.start(0), audioSeekable.end(0) < mainSeekable.end(0) ? audioSeekable.end(0) : mainSeekable.end(0)]]);
+ } // seekable is the same as last time
+
+
+ if (this.seekable_ && this.seekable_.length) {
+ if (this.seekable_.end(0) === oldEnd && this.seekable_.start(0) === oldStart) {
+ return;
+ }
+ }
+
+ this.logger_('seekable updated [' + printableRange(this.seekable_) + ']');
+ this.tech_.trigger('seekablechanged');
+ }
+ /**
+ * Update the player duration
+ */
+
+ }, {
+ key: 'updateDuration',
+ value: function updateDuration() {
+ var _this6 = this;
+
+ var oldDuration = this.mediaSource.duration;
+ var newDuration = Hls.Playlist.duration(this.masterPlaylistLoader_.media());
+ var buffered = this.tech_.buffered();
+
+ var setDuration = function setDuration() {
+ // on firefox setting the duration may sometimes cause an exception
+ // even if the media source is open and source buffers are not
+ // updating, something about the media source being in an invalid state.
+ _this6.logger_('Setting duration from ' + _this6.mediaSource.duration + ' => ' + newDuration);
+
+ try {
+ _this6.mediaSource.duration = newDuration;
+ } catch (e) {
+ videojs$1.log.warn('Failed to set media source duration', e);
+ }
+
+ _this6.tech_.trigger('durationchange');
+
+ _this6.mediaSource.removeEventListener('sourceopen', setDuration);
+ };
+
+ if (buffered.length > 0) {
+ newDuration = Math.max(newDuration, buffered.end(buffered.length - 1));
+ } // if the duration has changed, invalidate the cached value
+
+
+ if (oldDuration !== newDuration) {
+ // update the duration
+ if (this.mediaSource.readyState !== 'open') {
+ this.mediaSource.addEventListener('sourceopen', setDuration);
+ } else {
+ setDuration();
+ }
+ }
+ }
+ /**
+ * dispose of the MasterPlaylistController and everything
+ * that it controls
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ var _this7 = this;
+
+ this.decrypter_.terminate();
+ this.masterPlaylistLoader_.dispose();
+ this.mainSegmentLoader_.dispose();
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ var groups = _this7.mediaTypes_[type].groups;
+
+ for (var id in groups) {
+ groups[id].forEach(function (group) {
+ if (group.playlistLoader) {
+ group.playlistLoader.dispose();
+ }
+ });
+ }
+ });
+ this.audioSegmentLoader_.dispose();
+ this.subtitleSegmentLoader_.dispose();
+ }
+ /**
+ * return the master playlist object if we have one
+ *
+ * @return {Object} the master playlist object that we parsed
+ */
+
+ }, {
+ key: 'master',
+ value: function master() {
+ return this.masterPlaylistLoader_.master;
+ }
+ /**
+ * return the currently selected playlist
+ *
+ * @return {Object} the currently selected playlist object that we parsed
+ */
+
+ }, {
+ key: 'media',
+ value: function media() {
+ // playlist loader will not return media if it has not been fully loaded
+ return this.masterPlaylistLoader_.media() || this.initialMedia_;
+ }
+ /**
+ * setup our internal source buffers on our segment Loaders
+ *
+ * @private
+ */
+
+ }, {
+ key: 'setupSourceBuffers_',
+ value: function setupSourceBuffers_() {
+ var media = this.masterPlaylistLoader_.media();
+ var mimeTypes = void 0; // wait until a media playlist is available and the Media Source is
+ // attached
+
+ if (!media || this.mediaSource.readyState !== 'open') {
+ return;
+ }
+
+ mimeTypes = mimeTypesForPlaylist(this.masterPlaylistLoader_.master, media);
+
+ if (mimeTypes.length < 1) {
+ this.error = 'No compatible SourceBuffer configuration for the variant stream:' + media.resolvedUri;
+ return this.mediaSource.endOfStream('decode');
+ }
+
+ this.configureLoaderMimeTypes_(mimeTypes); // exclude any incompatible variant streams from future playlist
+ // selection
+
+ this.excludeIncompatibleVariants_(media);
+ }
+ }, {
+ key: 'configureLoaderMimeTypes_',
+ value: function configureLoaderMimeTypes_(mimeTypes) {
+ // If the content is demuxed, we can't start appending segments to a source buffer
+ // until both source buffers are set up, or else the browser may not let us add the
+ // second source buffer (it will assume we are playing either audio only or video
+ // only).
+ var sourceBufferEmitter = // If there is more than one mime type
+ mimeTypes.length > 1 && // and the first mime type does not have muxed video and audio
+ mimeTypes[0].indexOf(',') === -1 && // and the two mime types are different (they can be the same in the case of audio
+ // only with alternate audio)
+ mimeTypes[0] !== mimeTypes[1] ? // then we want to wait on the second source buffer
+ new videojs$1.EventTarget() : // otherwise there is no need to wait as the content is either audio only,
+ // video only, or muxed content.
+ null;
+ this.mainSegmentLoader_.mimeType(mimeTypes[0], sourceBufferEmitter);
+
+ if (mimeTypes[1]) {
+ this.audioSegmentLoader_.mimeType(mimeTypes[1], sourceBufferEmitter);
+ }
+ }
+ /**
+ * Blacklists playlists with codecs that are unsupported by the browser.
+ */
+
+ }, {
+ key: 'excludeUnsupportedVariants_',
+ value: function excludeUnsupportedVariants_() {
+ this.master().playlists.forEach(function (variant) {
+ if (variant.attributes.CODECS && window$1.MediaSource && window$1.MediaSource.isTypeSupported && !window$1.MediaSource.isTypeSupported('video/mp4; codecs="' + mapLegacyAvcCodecs(variant.attributes.CODECS) + '"')) {
+ variant.excludeUntil = Infinity;
+ }
+ });
+ }
+ /**
+ * Blacklist playlists that are known to be codec or
+ * stream-incompatible with the SourceBuffer configuration. For
+ * instance, Media Source Extensions would cause the video element to
+ * stall waiting for video data if you switched from a variant with
+ * video and audio to an audio-only one.
+ *
+ * @param {Object} media a media playlist compatible with the current
+ * set of SourceBuffers. Variants in the current master playlist that
+ * do not appear to have compatible codec or stream configurations
+ * will be excluded from the default playlist selection algorithm
+ * indefinitely.
+ * @private
+ */
+
+ }, {
+ key: 'excludeIncompatibleVariants_',
+ value: function excludeIncompatibleVariants_(media) {
+ var codecCount = 2;
+ var videoCodec = null;
+ var codecs = void 0;
+
+ if (media.attributes.CODECS) {
+ codecs = parseCodecs(media.attributes.CODECS);
+ videoCodec = codecs.videoCodec;
+ codecCount = codecs.codecCount;
+ }
+
+ this.master().playlists.forEach(function (variant) {
+ var variantCodecs = {
+ codecCount: 2,
+ videoCodec: null
+ };
+
+ if (variant.attributes.CODECS) {
+ variantCodecs = parseCodecs(variant.attributes.CODECS);
+ } // if the streams differ in the presence or absence of audio or
+ // video, they are incompatible
+
+
+ if (variantCodecs.codecCount !== codecCount) {
+ variant.excludeUntil = Infinity;
+ } // if h.264 is specified on the current playlist, some flavor of
+ // it must be specified on all compatible variants
+
+
+ if (variantCodecs.videoCodec !== videoCodec) {
+ variant.excludeUntil = Infinity;
+ }
+ });
+ }
+ }, {
+ key: 'updateAdCues_',
+ value: function updateAdCues_(media) {
+ var offset = 0;
+ var seekable$$1 = this.seekable();
+
+ if (seekable$$1.length) {
+ offset = seekable$$1.start(0);
+ }
+
+ updateAdCues(media, this.cueTagsTrack_, offset);
+ }
+ /**
+ * Calculates the desired forward buffer length based on current time
+ *
+ * @return {Number} Desired forward buffer length in seconds
+ */
+
+ }, {
+ key: 'goalBufferLength',
+ value: function goalBufferLength() {
+ var currentTime = this.tech_.currentTime();
+ var initial = Config.GOAL_BUFFER_LENGTH;
+ var rate = Config.GOAL_BUFFER_LENGTH_RATE;
+ var max = Math.max(initial, Config.MAX_GOAL_BUFFER_LENGTH);
+ return Math.min(initial + currentTime * rate, max);
+ }
+ /**
+ * Calculates the desired buffer low water line based on current time
+ *
+ * @return {Number} Desired buffer low water line in seconds
+ */
+
+ }, {
+ key: 'bufferLowWaterLine',
+ value: function bufferLowWaterLine() {
+ var currentTime = this.tech_.currentTime();
+ var initial = Config.BUFFER_LOW_WATER_LINE;
+ var rate = Config.BUFFER_LOW_WATER_LINE_RATE;
+ var max = Math.max(initial, Config.MAX_BUFFER_LOW_WATER_LINE);
+ return Math.min(initial + currentTime * rate, max);
+ }
+ }]);
+ return MasterPlaylistController;
+}(videojs$1.EventTarget);
+/**
+ * Returns a function that acts as the Enable/disable playlist function.
+ *
+ * @param {PlaylistLoader} loader - The master playlist loader
+ * @param {String} playlistUri - uri of the playlist
+ * @param {Function} changePlaylistFn - A function to be called after a
+ * playlist's enabled-state has been changed. Will NOT be called if a
+ * playlist's enabled-state is unchanged
+ * @param {Boolean=} enable - Value to set the playlist enabled-state to
+ * or if undefined returns the current enabled-state for the playlist
+ * @return {Function} Function for setting/getting enabled
+ */
+
+
+var enableFunction = function enableFunction(loader, playlistUri, changePlaylistFn) {
+ return function (enable) {
+ var playlist = loader.master.playlists[playlistUri];
+ var incompatible = isIncompatible(playlist);
+ var currentlyEnabled = isEnabled(playlist);
+
+ if (typeof enable === 'undefined') {
+ return currentlyEnabled;
+ }
+
+ if (enable) {
+ delete playlist.disabled;
+ } else {
+ playlist.disabled = true;
+ }
+
+ if (enable !== currentlyEnabled && !incompatible) {
+ // Ensure the outside world knows about our changes
+ changePlaylistFn();
+
+ if (enable) {
+ loader.trigger('renditionenabled');
+ } else {
+ loader.trigger('renditiondisabled');
+ }
+ }
+
+ return enable;
+ };
+};
+/**
+ * The representation object encapsulates the publicly visible information
+ * in a media playlist along with a setter/getter-type function (enabled)
+ * for changing the enabled-state of a particular playlist entry
+ *
+ * @class Representation
+ */
+
+
+var Representation = function Representation(hlsHandler, playlist, id) {
+ classCallCheck(this, Representation);
+ var mpc = hlsHandler.masterPlaylistController_,
+ smoothQualityChange = hlsHandler.options_.smoothQualityChange; // Get a reference to a bound version of the quality change function
+
+ var changeType = smoothQualityChange ? 'smooth' : 'fast';
+ var qualityChangeFunction = mpc[changeType + 'QualityChange_'].bind(mpc); // some playlist attributes are optional
+
+ if (playlist.attributes.RESOLUTION) {
+ var resolution = playlist.attributes.RESOLUTION;
+ this.width = resolution.width;
+ this.height = resolution.height;
+ }
+
+ this.bandwidth = playlist.attributes.BANDWIDTH; // The id is simply the ordinality of the media playlist
+ // within the master playlist
+
+ this.id = id; // Partially-apply the enableFunction to create a playlist-
+ // specific variant
+
+ this.enabled = enableFunction(hlsHandler.playlists, playlist.uri, qualityChangeFunction);
+};
+/**
+ * A mixin function that adds the `representations` api to an instance
+ * of the HlsHandler class
+ * @param {HlsHandler} hlsHandler - An instance of HlsHandler to add the
+ * representation API into
+ */
+
+
+var renditionSelectionMixin = function renditionSelectionMixin(hlsHandler) {
+ var playlists = hlsHandler.playlists; // Add a single API-specific function to the HlsHandler instance
+
+ hlsHandler.representations = function () {
+ return playlists.master.playlists.filter(function (media) {
+ return !isIncompatible(media);
+ }).map(function (e, i) {
+ return new Representation(hlsHandler, e, e.uri);
+ });
+ };
+};
+/**
+ * @file playback-watcher.js
+ *
+ * Playback starts, and now my watch begins. It shall not end until my death. I shall
+ * take no wait, hold no uncleared timeouts, father no bad seeks. I shall wear no crowns
+ * and win no glory. I shall live and die at my post. I am the corrector of the underflow.
+ * I am the watcher of gaps. I am the shield that guards the realms of seekable. I pledge
+ * my life and honor to the Playback Watch, for this Player and all the Players to come.
+ */
+// Set of events that reset the playback-watcher time check logic and clear the timeout
+
+
+var timerCancelEvents = ['seeking', 'seeked', 'pause', 'playing', 'error'];
+/**
+ * @class PlaybackWatcher
+ */
+
+var PlaybackWatcher = function () {
+ /**
+ * Represents an PlaybackWatcher object.
+ * @constructor
+ * @param {object} options an object that includes the tech and settings
+ */
+ function PlaybackWatcher(options) {
+ var _this = this;
+
+ classCallCheck(this, PlaybackWatcher);
+ this.tech_ = options.tech;
+ this.seekable = options.seekable;
+ this.seekTo = options.seekTo;
+ this.allowSeeksWithinUnsafeLiveWindow = options.allowSeeksWithinUnsafeLiveWindow;
+ this.media = options.media;
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = null;
+ this.timer_ = null;
+ this.checkCurrentTimeTimeout_ = null;
+ this.logger_ = logger('PlaybackWatcher');
+ this.logger_('initialize');
+
+ var canPlayHandler = function canPlayHandler() {
+ return _this.monitorCurrentTime_();
+ };
+
+ var waitingHandler = function waitingHandler() {
+ return _this.techWaiting_();
+ };
+
+ var cancelTimerHandler = function cancelTimerHandler() {
+ return _this.cancelTimer_();
+ };
+
+ var fixesBadSeeksHandler = function fixesBadSeeksHandler() {
+ return _this.fixesBadSeeks_();
+ };
+
+ this.tech_.on('seekablechanged', fixesBadSeeksHandler);
+ this.tech_.on('waiting', waitingHandler);
+ this.tech_.on(timerCancelEvents, cancelTimerHandler);
+ this.tech_.on('canplay', canPlayHandler); // Define the dispose function to clean up our events
+
+ this.dispose = function () {
+ _this.logger_('dispose');
+
+ _this.tech_.off('seekablechanged', fixesBadSeeksHandler);
+
+ _this.tech_.off('waiting', waitingHandler);
+
+ _this.tech_.off(timerCancelEvents, cancelTimerHandler);
+
+ _this.tech_.off('canplay', canPlayHandler);
+
+ if (_this.checkCurrentTimeTimeout_) {
+ window$1.clearTimeout(_this.checkCurrentTimeTimeout_);
+ }
+
+ _this.cancelTimer_();
+ };
+ }
+ /**
+ * Periodically check current time to see if playback stopped
+ *
+ * @private
+ */
+
+
+ createClass(PlaybackWatcher, [{
+ key: 'monitorCurrentTime_',
+ value: function monitorCurrentTime_() {
+ this.checkCurrentTime_();
+
+ if (this.checkCurrentTimeTimeout_) {
+ window$1.clearTimeout(this.checkCurrentTimeTimeout_);
+ } // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+
+
+ this.checkCurrentTimeTimeout_ = window$1.setTimeout(this.monitorCurrentTime_.bind(this), 250);
+ }
+ /**
+ * The purpose of this function is to emulate the "waiting" event on
+ * browsers that do not emit it when they are waiting for more
+ * data to continue playback
+ *
+ * @private
+ */
+
+ }, {
+ key: 'checkCurrentTime_',
+ value: function checkCurrentTime_() {
+ if (this.tech_.seeking() && this.fixesBadSeeks_()) {
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = this.tech_.currentTime();
+ return;
+ }
+
+ if (this.tech_.paused() || this.tech_.seeking()) {
+ return;
+ }
+
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+
+ if (this.lastRecordedTime === currentTime && (!buffered.length || currentTime + SAFE_TIME_DELTA >= buffered.end(buffered.length - 1))) {
+ // If current time is at the end of the final buffered region, then any playback
+ // stall is most likely caused by buffering in a low bandwidth environment. The tech
+ // should fire a `waiting` event in this scenario, but due to browser and tech
+ // inconsistencies. Calling `techWaiting_` here allows us to simulate
+ // responding to a native `waiting` event when the tech fails to emit one.
+ return this.techWaiting_();
+ }
+
+ if (this.consecutiveUpdates >= 5 && currentTime === this.lastRecordedTime) {
+ this.consecutiveUpdates++;
+ this.waiting_();
+ } else if (currentTime === this.lastRecordedTime) {
+ this.consecutiveUpdates++;
+ } else {
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = currentTime;
+ }
+ }
+ /**
+ * Cancels any pending timers and resets the 'timeupdate' mechanism
+ * designed to detect that we are stalled
+ *
+ * @private
+ */
+
+ }, {
+ key: 'cancelTimer_',
+ value: function cancelTimer_() {
+ this.consecutiveUpdates = 0;
+
+ if (this.timer_) {
+ this.logger_('cancelTimer_');
+ clearTimeout(this.timer_);
+ }
+
+ this.timer_ = null;
+ }
+ /**
+ * Fixes situations where there's a bad seek
+ *
+ * @return {Boolean} whether an action was taken to fix the seek
+ * @private
+ */
+
+ }, {
+ key: 'fixesBadSeeks_',
+ value: function fixesBadSeeks_() {
+ var seeking = this.tech_.seeking();
+
+ if (!seeking) {
+ return false;
+ }
+
+ var seekable = this.seekable();
+ var currentTime = this.tech_.currentTime();
+ var isAfterSeekableRange = this.afterSeekableWindow_(seekable, currentTime, this.media(), this.allowSeeksWithinUnsafeLiveWindow);
+ var seekTo = void 0;
+
+ if (isAfterSeekableRange) {
+ var seekableEnd = seekable.end(seekable.length - 1); // sync to live point (if VOD, our seekable was updated and we're simply adjusting)
+
+ seekTo = seekableEnd;
+ }
+
+ if (this.beforeSeekableWindow_(seekable, currentTime)) {
+ var seekableStart = seekable.start(0); // sync to the beginning of the live window
+ // provide a buffer of .1 seconds to handle rounding/imprecise numbers
+
+ seekTo = seekableStart + SAFE_TIME_DELTA;
+ }
+
+ if (typeof seekTo !== 'undefined') {
+ this.logger_('Trying to seek outside of seekable at time ' + currentTime + ' with ' + ('seekable range ' + printableRange(seekable) + '. Seeking to ') + (seekTo + '.'));
+ this.seekTo(seekTo);
+ return true;
+ }
+
+ return false;
+ }
+ /**
+ * Handler for situations when we determine the player is waiting.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'waiting_',
+ value: function waiting_() {
+ if (this.techWaiting_()) {
+ return;
+ } // All tech waiting checks failed. Use last resort correction
+
+
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+ var currentRange = findRange(buffered, currentTime); // Sometimes the player can stall for unknown reasons within a contiguous buffered
+ // region with no indication that anything is amiss (seen in Firefox). Seeking to
+ // currentTime is usually enough to kickstart the player. This checks that the player
+ // is currently within a buffered region before attempting a corrective seek.
+ // Chrome does not appear to continue `timeupdate` events after a `waiting` event
+ // until there is ~ 3 seconds of forward buffer available. PlaybackWatcher should also
+ // make sure there is ~3 seconds of forward buffer before taking any corrective action
+ // to avoid triggering an `unknownwaiting` event when the network is slow.
+
+ if (currentRange.length && currentTime + 3 <= currentRange.end(0)) {
+ this.cancelTimer_();
+ this.seekTo(currentTime);
+ this.logger_('Stopped at ' + currentTime + ' while inside a buffered region ' + ('[' + currentRange.start(0) + ' -> ' + currentRange.end(0) + ']. Attempting to resume ') + 'playback by seeking to the current time.'); // unknown waiting corrections may be useful for monitoring QoS
+
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-unknown-waiting'
+ });
+ return;
+ }
+ }
+ /**
+ * Handler for situations when the tech fires a `waiting` event
+ *
+ * @return {Boolean}
+ * True if an action (or none) was needed to correct the waiting. False if no
+ * checks passed
+ * @private
+ */
+
+ }, {
+ key: 'techWaiting_',
+ value: function techWaiting_() {
+ var seekable = this.seekable();
+ var currentTime = this.tech_.currentTime();
+
+ if (this.tech_.seeking() && this.fixesBadSeeks_()) {
+ // Tech is seeking or bad seek fixed, no action needed
+ return true;
+ }
+
+ if (this.tech_.seeking() || this.timer_ !== null) {
+ // Tech is seeking or already waiting on another action, no action needed
+ return true;
+ }
+
+ if (this.beforeSeekableWindow_(seekable, currentTime)) {
+ var livePoint = seekable.end(seekable.length - 1);
+ this.logger_('Fell out of live window at time ' + currentTime + '. Seeking to ' + ('live point (seekable end) ' + livePoint));
+ this.cancelTimer_();
+ this.seekTo(livePoint); // live window resyncs may be useful for monitoring QoS
+
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-live-resync'
+ });
+ return true;
+ }
+
+ var buffered = this.tech_.buffered();
+ var nextRange = findNextRange(buffered, currentTime);
+
+ if (this.videoUnderflow_(nextRange, buffered, currentTime)) {
+ // Even though the video underflowed and was stuck in a gap, the audio overplayed
+ // the gap, leading currentTime into a buffered range. Seeking to currentTime
+ // allows the video to catch up to the audio position without losing any audio
+ // (only suffering ~3 seconds of frozen video and a pause in audio playback).
+ this.cancelTimer_();
+ this.seekTo(currentTime); // video underflow may be useful for monitoring QoS
+
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-video-underflow'
+ });
+ return true;
+ } // check for gap
+
+
+ if (nextRange.length > 0) {
+ var difference = nextRange.start(0) - currentTime;
+ this.logger_('Stopped at ' + currentTime + ', setting timer for ' + difference + ', seeking ' + ('to ' + nextRange.start(0)));
+ this.timer_ = setTimeout(this.skipTheGap_.bind(this), difference * 1000, currentTime);
+ return true;
+ } // All checks failed. Returning false to indicate failure to correct waiting
+
+
+ return false;
+ }
+ }, {
+ key: 'afterSeekableWindow_',
+ value: function afterSeekableWindow_(seekable, currentTime, playlist) {
+ var allowSeeksWithinUnsafeLiveWindow = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
+
+ if (!seekable.length) {
+ // we can't make a solid case if there's no seekable, default to false
+ return false;
+ }
+
+ var allowedEnd = seekable.end(seekable.length - 1) + SAFE_TIME_DELTA;
+ var isLive = !playlist.endList;
+
+ if (isLive && allowSeeksWithinUnsafeLiveWindow) {
+ allowedEnd = seekable.end(seekable.length - 1) + playlist.targetDuration * 3;
+ }
+
+ if (currentTime > allowedEnd) {
+ return true;
+ }
+
+ return false;
+ }
+ }, {
+ key: 'beforeSeekableWindow_',
+ value: function beforeSeekableWindow_(seekable, currentTime) {
+ if (seekable.length && // can't fall before 0 and 0 seekable start identifies VOD stream
+ seekable.start(0) > 0 && currentTime < seekable.start(0) - SAFE_TIME_DELTA) {
+ return true;
+ }
+
+ return false;
+ }
+ }, {
+ key: 'videoUnderflow_',
+ value: function videoUnderflow_(nextRange, buffered, currentTime) {
+ if (nextRange.length === 0) {
+ // Even if there is no available next range, there is still a possibility we are
+ // stuck in a gap due to video underflow.
+ var gap = this.gapFromVideoUnderflow_(buffered, currentTime);
+
+ if (gap) {
+ this.logger_('Encountered a gap in video from ' + gap.start + ' to ' + gap.end + '. ' + ('Seeking to current time ' + currentTime));
+ return true;
+ }
+ }
+
+ return false;
+ }
+ /**
+ * Timer callback. If playback still has not proceeded, then we seek
+ * to the start of the next buffered region.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'skipTheGap_',
+ value: function skipTheGap_(scheduledCurrentTime) {
+ var buffered = this.tech_.buffered();
+ var currentTime = this.tech_.currentTime();
+ var nextRange = findNextRange(buffered, currentTime);
+ this.cancelTimer_();
+
+ if (nextRange.length === 0 || currentTime !== scheduledCurrentTime) {
+ return;
+ }
+
+ this.logger_('skipTheGap_:', 'currentTime:', currentTime, 'scheduled currentTime:', scheduledCurrentTime, 'nextRange start:', nextRange.start(0)); // only seek if we still have not played
+
+ this.seekTo(nextRange.start(0) + TIME_FUDGE_FACTOR);
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-gap-skip'
+ });
+ }
+ }, {
+ key: 'gapFromVideoUnderflow_',
+ value: function gapFromVideoUnderflow_(buffered, currentTime) {
+ // At least in Chrome, if there is a gap in the video buffer, the audio will continue
+ // playing for ~3 seconds after the video gap starts. This is done to account for
+ // video buffer underflow/underrun (note that this is not done when there is audio
+ // buffer underflow/underrun -- in that case the video will stop as soon as it
+ // encounters the gap, as audio stalls are more noticeable/jarring to a user than
+ // video stalls). The player's time will reflect the playthrough of audio, so the
+ // time will appear as if we are in a buffered region, even if we are stuck in a
+ // "gap."
+ //
+ // Example:
+ // video buffer: 0 => 10.1, 10.2 => 20
+ // audio buffer: 0 => 20
+ // overall buffer: 0 => 10.1, 10.2 => 20
+ // current time: 13
+ //
+ // Chrome's video froze at 10 seconds, where the video buffer encountered the gap,
+ // however, the audio continued playing until it reached ~3 seconds past the gap
+ // (13 seconds), at which point it stops as well. Since current time is past the
+ // gap, findNextRange will return no ranges.
+ //
+ // To check for this issue, we see if there is a gap that starts somewhere within
+ // a 3 second range (3 seconds +/- 1 second) back from our current time.
+ var gaps = findGaps(buffered);
+
+ for (var i = 0; i < gaps.length; i++) {
+ var start = gaps.start(i);
+ var end = gaps.end(i); // gap is starts no more than 4 seconds back
+
+ if (currentTime - start < 4 && currentTime - start > 2) {
+ return {
+ start: start,
+ end: end
+ };
+ }
+ }
+
+ return null;
+ }
+ }]);
+ return PlaybackWatcher;
+}();
+
+var defaultOptions = {
+ errorInterval: 30,
+ getSource: function getSource(next) {
+ var tech = this.tech({
+ IWillNotUseThisInPlugins: true
+ });
+ var sourceObj = tech.currentSource_;
+ return next(sourceObj);
+ }
+};
+/**
+ * Main entry point for the plugin
+ *
+ * @param {Player} player a reference to a videojs Player instance
+ * @param {Object} [options] an object with plugin options
+ * @private
+ */
+
+var initPlugin = function initPlugin(player, options) {
+ var lastCalled = 0;
+ var seekTo = 0;
+ var localOptions = videojs$1.mergeOptions(defaultOptions, options);
+ player.ready(function () {
+ player.trigger({
+ type: 'usage',
+ name: 'hls-error-reload-initialized'
+ });
+ });
+ /**
+ * Player modifications to perform that must wait until `loadedmetadata`
+ * has been triggered
+ *
+ * @private
+ */
+
+ var loadedMetadataHandler = function loadedMetadataHandler() {
+ if (seekTo) {
+ player.currentTime(seekTo);
+ }
+ };
+ /**
+ * Set the source on the player element, play, and seek if necessary
+ *
+ * @param {Object} sourceObj An object specifying the source url and mime-type to play
+ * @private
+ */
+
+
+ var setSource = function setSource(sourceObj) {
+ if (sourceObj === null || sourceObj === undefined) {
+ return;
+ }
+
+ seekTo = player.duration() !== Infinity && player.currentTime() || 0;
+ player.one('loadedmetadata', loadedMetadataHandler);
+ player.src(sourceObj);
+ player.trigger({
+ type: 'usage',
+ name: 'hls-error-reload'
+ });
+ player.play();
+ };
+ /**
+ * Attempt to get a source from either the built-in getSource function
+ * or a custom function provided via the options
+ *
+ * @private
+ */
+
+
+ var errorHandler = function errorHandler() {
+ // Do not attempt to reload the source if a source-reload occurred before
+ // 'errorInterval' time has elapsed since the last source-reload
+ if (Date.now() - lastCalled < localOptions.errorInterval * 1000) {
+ player.trigger({
+ type: 'usage',
+ name: 'hls-error-reload-canceled'
+ });
+ return;
+ }
+
+ if (!localOptions.getSource || typeof localOptions.getSource !== 'function') {
+ videojs$1.log.error('ERROR: reloadSourceOnError - The option getSource must be a function!');
+ return;
+ }
+
+ lastCalled = Date.now();
+ return localOptions.getSource.call(player, setSource);
+ };
+ /**
+ * Unbind any event handlers that were bound by the plugin
+ *
+ * @private
+ */
+
+
+ var cleanupEvents = function cleanupEvents() {
+ player.off('loadedmetadata', loadedMetadataHandler);
+ player.off('error', errorHandler);
+ player.off('dispose', cleanupEvents);
+ };
+ /**
+ * Cleanup before re-initializing the plugin
+ *
+ * @param {Object} [newOptions] an object with plugin options
+ * @private
+ */
+
+
+ var reinitPlugin = function reinitPlugin(newOptions) {
+ cleanupEvents();
+ initPlugin(player, newOptions);
+ };
+
+ player.on('error', errorHandler);
+ player.on('dispose', cleanupEvents); // Overwrite the plugin function so that we can correctly cleanup before
+ // initializing the plugin
+
+ player.reloadSourceOnError = reinitPlugin;
+};
+/**
+ * Reload the source when an error is detected as long as there
+ * wasn't an error previously within the last 30 seconds
+ *
+ * @param {Object} [options] an object with plugin options
+ */
+
+
+var reloadSourceOnError = function reloadSourceOnError(options) {
+ initPlugin(this, options);
+};
+
+var version$1 = "1.10.6"; // since VHS handles HLS and DASH (and in the future, more types), use * to capture all
+
+videojs$1.use('*', function (player) {
+ return {
+ setSource: function setSource(srcObj, next) {
+ // pass null as the first argument to indicate that the source is not rejected
+ next(null, srcObj);
+ },
+ // VHS needs to know when seeks happen. For external seeks (generated at the player
+ // level), this middleware will capture the action. For internal seeks (generated at
+ // the tech level), we use a wrapped function so that we can handle it on our own
+ // (specified elsewhere).
+ setCurrentTime: function setCurrentTime(time) {
+ if (player.vhs && player.currentSource().src === player.vhs.source_.src) {
+ player.vhs.setCurrentTime(time);
+ }
+
+ return time;
+ },
+ // Sync VHS after play requests.
+ // This specifically handles replay where the order of actions is
+ // play, video element will seek to 0 (skipping the setCurrentTime middleware)
+ // then triggers a play event.
+ play: function play() {
+ if (player.vhs && player.currentSource().src === player.vhs.source_.src) {
+ player.vhs.setCurrentTime(player.tech_.currentTime());
+ }
+ }
+ };
+});
+/**
+ * @file videojs-http-streaming.js
+ *
+ * The main file for the HLS project.
+ * License: https://github.com/videojs/videojs-http-streaming/blob/master/LICENSE
+ */
+
+var Hls$1 = {
+ PlaylistLoader: PlaylistLoader,
+ Playlist: Playlist,
+ Decrypter: Decrypter,
+ AsyncStream: AsyncStream,
+ decrypt: decrypt,
+ utils: utils,
+ STANDARD_PLAYLIST_SELECTOR: lastBandwidthSelector,
+ INITIAL_PLAYLIST_SELECTOR: lowestBitrateCompatibleVariantSelector,
+ comparePlaylistBandwidth: comparePlaylistBandwidth,
+ comparePlaylistResolution: comparePlaylistResolution,
+ xhr: xhrFactory()
+}; // Define getter/setters for config properites
+
+['GOAL_BUFFER_LENGTH', 'MAX_GOAL_BUFFER_LENGTH', 'GOAL_BUFFER_LENGTH_RATE', 'BUFFER_LOW_WATER_LINE', 'MAX_BUFFER_LOW_WATER_LINE', 'BUFFER_LOW_WATER_LINE_RATE', 'BANDWIDTH_VARIANCE'].forEach(function (prop) {
+ Object.defineProperty(Hls$1, prop, {
+ get: function get$$1() {
+ videojs$1.log.warn('using Hls.' + prop + ' is UNSAFE be sure you know what you are doing');
+ return Config[prop];
+ },
+ set: function set$$1(value) {
+ videojs$1.log.warn('using Hls.' + prop + ' is UNSAFE be sure you know what you are doing');
+
+ if (typeof value !== 'number' || value < 0) {
+ videojs$1.log.warn('value of Hls.' + prop + ' must be greater than or equal to 0');
+ return;
+ }
+
+ Config[prop] = value;
+ }
+ });
+});
+var LOCAL_STORAGE_KEY$1 = 'videojs-vhs';
+
+var simpleTypeFromSourceType = function simpleTypeFromSourceType(type) {
+ var mpegurlRE = /^(audio|video|application)\/(x-|vnd\.apple\.)?mpegurl/i;
+
+ if (mpegurlRE.test(type)) {
+ return 'hls';
+ }
+
+ var dashRE = /^application\/dash\+xml/i;
+
+ if (dashRE.test(type)) {
+ return 'dash';
+ }
+
+ return null;
+};
+/**
+ * Updates the selectedIndex of the QualityLevelList when a mediachange happens in hls.
+ *
+ * @param {QualityLevelList} qualityLevels The QualityLevelList to update.
+ * @param {PlaylistLoader} playlistLoader PlaylistLoader containing the new media info.
+ * @function handleHlsMediaChange
+ */
+
+
+var handleHlsMediaChange = function handleHlsMediaChange(qualityLevels, playlistLoader) {
+ var newPlaylist = playlistLoader.media();
+ var selectedIndex = -1;
+
+ for (var i = 0; i < qualityLevels.length; i++) {
+ if (qualityLevels[i].id === newPlaylist.uri) {
+ selectedIndex = i;
+ break;
+ }
+ }
+
+ qualityLevels.selectedIndex_ = selectedIndex;
+ qualityLevels.trigger({
+ selectedIndex: selectedIndex,
+ type: 'change'
+ });
+};
+/**
+ * Adds quality levels to list once playlist metadata is available
+ *
+ * @param {QualityLevelList} qualityLevels The QualityLevelList to attach events to.
+ * @param {Object} hls Hls object to listen to for media events.
+ * @function handleHlsLoadedMetadata
+ */
+
+
+var handleHlsLoadedMetadata = function handleHlsLoadedMetadata(qualityLevels, hls) {
+ hls.representations().forEach(function (rep) {
+ qualityLevels.addQualityLevel(rep);
+ });
+ handleHlsMediaChange(qualityLevels, hls.playlists);
+}; // HLS is a source handler, not a tech. Make sure attempts to use it
+// as one do not cause exceptions.
+
+
+Hls$1.canPlaySource = function () {
+ return videojs$1.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
+};
+
+var emeKeySystems = function emeKeySystems(keySystemOptions, videoPlaylist, audioPlaylist) {
+ if (!keySystemOptions) {
+ return keySystemOptions;
+ } // upsert the content types based on the selected playlist
+
+
+ var keySystemContentTypes = {};
+
+ for (var keySystem in keySystemOptions) {
+ keySystemContentTypes[keySystem] = {
+ audioContentType: 'audio/mp4; codecs="' + audioPlaylist.attributes.CODECS + '"',
+ videoContentType: 'video/mp4; codecs="' + videoPlaylist.attributes.CODECS + '"'
+ };
+
+ if (videoPlaylist.contentProtection && videoPlaylist.contentProtection[keySystem] && videoPlaylist.contentProtection[keySystem].pssh) {
+ keySystemContentTypes[keySystem].pssh = videoPlaylist.contentProtection[keySystem].pssh;
+ } // videojs-contrib-eme accepts the option of specifying: 'com.some.cdm': 'url'
+ // so we need to prevent overwriting the URL entirely
+
+
+ if (typeof keySystemOptions[keySystem] === 'string') {
+ keySystemContentTypes[keySystem].url = keySystemOptions[keySystem];
+ }
+ }
+
+ return videojs$1.mergeOptions(keySystemOptions, keySystemContentTypes);
+};
+
+var setupEmeOptions = function setupEmeOptions(hlsHandler) {
+ if (hlsHandler.options_.sourceType !== 'dash') {
+ return;
+ }
+
+ var player = videojs$1.players[hlsHandler.tech_.options_.playerId];
+
+ if (player.eme) {
+ var sourceOptions = emeKeySystems(hlsHandler.source_.keySystems, hlsHandler.playlists.media(), hlsHandler.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader.media());
+
+ if (sourceOptions) {
+ player.currentSource().keySystems = sourceOptions; // works around https://bugs.chromium.org/p/chromium/issues/detail?id=895449
+
+ if (player.eme.initializeMediaKeys) {
+ player.eme.initializeMediaKeys();
+ }
+ }
+ }
+};
+
+var getVhsLocalStorage = function getVhsLocalStorage() {
+ if (!window.localStorage) {
+ return null;
+ }
+
+ var storedObject = window.localStorage.getItem(LOCAL_STORAGE_KEY$1);
+
+ if (!storedObject) {
+ return null;
+ }
+
+ try {
+ return JSON.parse(storedObject);
+ } catch (e) {
+ // someone may have tampered with the value
+ return null;
+ }
+};
+
+var updateVhsLocalStorage = function updateVhsLocalStorage(options) {
+ if (!window.localStorage) {
+ return false;
+ }
+
+ var objectToStore = getVhsLocalStorage();
+ objectToStore = objectToStore ? videojs$1.mergeOptions(objectToStore, options) : options;
+
+ try {
+ window.localStorage.setItem(LOCAL_STORAGE_KEY$1, JSON.stringify(objectToStore));
+ } catch (e) {
+ // Throws if storage is full (e.g., always on iOS 5+ Safari private mode, where
+ // storage is set to 0).
+ // https://developer.mozilla.org/en-US/docs/Web/API/Storage/setItem#Exceptions
+ // No need to perform any operation.
+ return false;
+ }
+
+ return objectToStore;
+};
+/**
+ * Whether the browser has built-in HLS support.
+ */
+
+
+Hls$1.supportsNativeHls = function () {
+ var video = document.createElement('video'); // native HLS is definitely not supported if HTML5 video isn't
+
+ if (!videojs$1.getTech('Html5').isSupported()) {
+ return false;
+ } // HLS manifests can go by many mime-types
+
+
+ var canPlay = [// Apple santioned
+ 'application/vnd.apple.mpegurl', // Apple sanctioned for backwards compatibility
+ 'audio/mpegurl', // Very common
+ 'audio/x-mpegurl', // Very common
+ 'application/x-mpegurl', // Included for completeness
+ 'video/x-mpegurl', 'video/mpegurl', 'application/mpegurl'];
+ return canPlay.some(function (canItPlay) {
+ return /maybe|probably/i.test(video.canPlayType(canItPlay));
+ });
+}();
+
+Hls$1.supportsNativeDash = function () {
+ if (!videojs$1.getTech('Html5').isSupported()) {
+ return false;
+ }
+
+ return /maybe|probably/i.test(document.createElement('video').canPlayType('application/dash+xml'));
+}();
+
+Hls$1.supportsTypeNatively = function (type) {
+ if (type === 'hls') {
+ return Hls$1.supportsNativeHls;
+ }
+
+ if (type === 'dash') {
+ return Hls$1.supportsNativeDash;
+ }
+
+ return false;
+};
+/**
+ * HLS is a source handler, not a tech. Make sure attempts to use it
+ * as one do not cause exceptions.
+ */
+
+
+Hls$1.isSupported = function () {
+ return videojs$1.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
+};
+
+var Component$1 = videojs$1.getComponent('Component');
+/**
+ * The Hls Handler object, where we orchestrate all of the parts
+ * of HLS to interact with video.js
+ *
+ * @class HlsHandler
+ * @extends videojs.Component
+ * @param {Object} source the soruce object
+ * @param {Tech} tech the parent tech object
+ * @param {Object} options optional and required options
+ */
+
+var HlsHandler = function (_Component) {
+ inherits(HlsHandler, _Component);
+
+ function HlsHandler(source, tech, options) {
+ classCallCheck(this, HlsHandler); // tech.player() is deprecated but setup a reference to HLS for
+ // backwards-compatibility
+
+ var _this = possibleConstructorReturn(this, (HlsHandler.__proto__ || Object.getPrototypeOf(HlsHandler)).call(this, tech, options.hls));
+
+ if (tech.options_ && tech.options_.playerId) {
+ var _player = videojs$1(tech.options_.playerId);
+
+ if (!_player.hasOwnProperty('hls')) {
+ Object.defineProperty(_player, 'hls', {
+ get: function get$$1() {
+ videojs$1.log.warn('player.hls is deprecated. Use player.tech().hls instead.');
+ tech.trigger({
+ type: 'usage',
+ name: 'hls-player-access'
+ });
+ return _this;
+ },
+ configurable: true
+ });
+ } // Set up a reference to the HlsHandler from player.vhs. This allows users to start
+ // migrating from player.tech_.hls... to player.vhs... for API access. Although this
+ // isn't the most appropriate form of reference for video.js (since all APIs should
+ // be provided through core video.js), it is a common pattern for plugins, and vhs
+ // will act accordingly.
+
+
+ _player.vhs = _this; // deprecated, for backwards compatibility
+
+ _player.dash = _this;
+ _this.player_ = _player;
+ }
+
+ _this.tech_ = tech;
+ _this.source_ = source;
+ _this.stats = {};
+
+ _this.setOptions_();
+
+ if (_this.options_.overrideNative && tech.overrideNativeAudioTracks && tech.overrideNativeVideoTracks) {
+ tech.overrideNativeAudioTracks(true);
+ tech.overrideNativeVideoTracks(true);
+ } else if (_this.options_.overrideNative && (tech.featuresNativeVideoTracks || tech.featuresNativeAudioTracks)) {
+ // overriding native HLS only works if audio tracks have been emulated
+ // error early if we're misconfigured
+ throw new Error('Overriding native HLS requires emulated tracks. ' + 'See https://git.io/vMpjB');
+ } // listen for fullscreenchange events for this player so that we
+ // can adjust our quality selection quickly
+
+
+ _this.on(document, ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'], function (event) {
+ var fullscreenElement = document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement;
+
+ if (fullscreenElement && fullscreenElement.contains(_this.tech_.el())) {
+ _this.masterPlaylistController_.smoothQualityChange_();
+ }
+ }); // Handle seeking when looping - middleware doesn't handle this seek event from the tech
+
+
+ _this.on(_this.tech_, 'seeking', function () {
+ if (this.tech_.currentTime() === 0 && this.tech_.player_.loop()) {
+ this.setCurrentTime(0);
+ }
+ });
+
+ _this.on(_this.tech_, 'error', function () {
+ if (this.masterPlaylistController_) {
+ this.masterPlaylistController_.pauseLoading();
+ }
+ });
+
+ _this.on(_this.tech_, 'play', _this.play);
+
+ return _this;
+ }
+
+ createClass(HlsHandler, [{
+ key: 'setOptions_',
+ value: function setOptions_() {
+ var _this2 = this; // defaults
+
+
+ this.options_.withCredentials = this.options_.withCredentials || false;
+ this.options_.handleManifestRedirects = this.options_.handleManifestRedirects || false;
+ this.options_.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions === false ? false : true;
+ this.options_.smoothQualityChange = this.options_.smoothQualityChange || false;
+ this.options_.useBandwidthFromLocalStorage = typeof this.source_.useBandwidthFromLocalStorage !== 'undefined' ? this.source_.useBandwidthFromLocalStorage : this.options_.useBandwidthFromLocalStorage || false;
+ this.options_.customTagParsers = this.options_.customTagParsers || [];
+ this.options_.customTagMappers = this.options_.customTagMappers || [];
+ this.options_.cacheEncryptionKeys = this.options_.cacheEncryptionKeys || false;
+
+ if (typeof this.options_.blacklistDuration !== 'number') {
+ this.options_.blacklistDuration = 5 * 60;
+ }
+
+ if (typeof this.options_.bandwidth !== 'number') {
+ if (this.options_.useBandwidthFromLocalStorage) {
+ var storedObject = getVhsLocalStorage();
+
+ if (storedObject && storedObject.bandwidth) {
+ this.options_.bandwidth = storedObject.bandwidth;
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-bandwidth-from-local-storage'
+ });
+ }
+
+ if (storedObject && storedObject.throughput) {
+ this.options_.throughput = storedObject.throughput;
+ this.tech_.trigger({
+ type: 'usage',
+ name: 'hls-throughput-from-local-storage'
+ });
+ }
+ }
+ } // if bandwidth was not set by options or pulled from local storage, start playlist
+ // selection at a reasonable bandwidth
+
+
+ if (typeof this.options_.bandwidth !== 'number') {
+ this.options_.bandwidth = Config.INITIAL_BANDWIDTH;
+ } // If the bandwidth number is unchanged from the initial setting
+ // then this takes precedence over the enableLowInitialPlaylist option
+
+
+ this.options_.enableLowInitialPlaylist = this.options_.enableLowInitialPlaylist && this.options_.bandwidth === Config.INITIAL_BANDWIDTH; // grab options passed to player.src
+
+ ['withCredentials', 'limitRenditionByPlayerDimensions', 'bandwidth', 'smoothQualityChange', 'customTagParsers', 'customTagMappers', 'handleManifestRedirects', 'cacheEncryptionKeys'].forEach(function (option) {
+ if (typeof _this2.source_[option] !== 'undefined') {
+ _this2.options_[option] = _this2.source_[option];
+ }
+ });
+ this.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions;
+ }
+ /**
+ * called when player.src gets called, handle a new source
+ *
+ * @param {Object} src the source object to handle
+ */
+
+ }, {
+ key: 'src',
+ value: function src(_src, type) {
+ var _this3 = this; // do nothing if the src is falsey
+
+
+ if (!_src) {
+ return;
+ }
+
+ this.setOptions_(); // add master playlist controller options
+
+ this.options_.url = this.source_.src;
+ this.options_.tech = this.tech_;
+ this.options_.externHls = Hls$1;
+ this.options_.sourceType = simpleTypeFromSourceType(type); // Whenever we seek internally, we should update both the tech and call our own
+ // setCurrentTime function. This is needed because "seeking" events aren't always
+ // reliable. External seeks (via the player object) are handled via middleware.
+
+ this.options_.seekTo = function (time) {
+ _this3.tech_.setCurrentTime(time);
+
+ _this3.setCurrentTime(time);
+ };
+
+ this.masterPlaylistController_ = new MasterPlaylistController(this.options_);
+ this.playbackWatcher_ = new PlaybackWatcher(videojs$1.mergeOptions(this.options_, {
+ seekable: function seekable$$1() {
+ return _this3.seekable();
+ },
+ media: function media() {
+ return _this3.masterPlaylistController_.media();
+ }
+ }));
+ this.masterPlaylistController_.on('error', function () {
+ var player = videojs$1.players[_this3.tech_.options_.playerId];
+ player.error(_this3.masterPlaylistController_.error);
+ }); // `this` in selectPlaylist should be the HlsHandler for backwards
+ // compatibility with < v2
+
+ this.masterPlaylistController_.selectPlaylist = this.selectPlaylist ? this.selectPlaylist.bind(this) : Hls$1.STANDARD_PLAYLIST_SELECTOR.bind(this);
+ this.masterPlaylistController_.selectInitialPlaylist = Hls$1.INITIAL_PLAYLIST_SELECTOR.bind(this); // re-expose some internal objects for backwards compatibility with < v2
+
+ this.playlists = this.masterPlaylistController_.masterPlaylistLoader_;
+ this.mediaSource = this.masterPlaylistController_.mediaSource; // Proxy assignment of some properties to the master playlist
+ // controller. Using a custom property for backwards compatibility
+ // with < v2
+
+ Object.defineProperties(this, {
+ selectPlaylist: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.selectPlaylist;
+ },
+ set: function set$$1(selectPlaylist) {
+ this.masterPlaylistController_.selectPlaylist = selectPlaylist.bind(this);
+ }
+ },
+ throughput: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.mainSegmentLoader_.throughput.rate;
+ },
+ set: function set$$1(throughput) {
+ this.masterPlaylistController_.mainSegmentLoader_.throughput.rate = throughput; // By setting `count` to 1 the throughput value becomes the starting value
+ // for the cumulative average
+
+ this.masterPlaylistController_.mainSegmentLoader_.throughput.count = 1;
+ }
+ },
+ bandwidth: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.mainSegmentLoader_.bandwidth;
+ },
+ set: function set$$1(bandwidth) {
+ this.masterPlaylistController_.mainSegmentLoader_.bandwidth = bandwidth; // setting the bandwidth manually resets the throughput counter
+ // `count` is set to zero that current value of `rate` isn't included
+ // in the cumulative average
+
+ this.masterPlaylistController_.mainSegmentLoader_.throughput = {
+ rate: 0,
+ count: 0
+ };
+ }
+ },
+
+ /**
+ * `systemBandwidth` is a combination of two serial processes bit-rates. The first
+ * is the network bitrate provided by `bandwidth` and the second is the bitrate of
+ * the entire process after that - decryption, transmuxing, and appending - provided
+ * by `throughput`.
+ *
+ * Since the two process are serial, the overall system bandwidth is given by:
+ * sysBandwidth = 1 / (1 / bandwidth + 1 / throughput)
+ */
+ systemBandwidth: {
+ get: function get$$1() {
+ var invBandwidth = 1 / (this.bandwidth || 1);
+ var invThroughput = void 0;
+
+ if (this.throughput > 0) {
+ invThroughput = 1 / this.throughput;
+ } else {
+ invThroughput = 0;
+ }
+
+ var systemBitrate = Math.floor(1 / (invBandwidth + invThroughput));
+ return systemBitrate;
+ },
+ set: function set$$1() {
+ videojs$1.log.error('The "systemBandwidth" property is read-only');
+ }
+ }
+ });
+
+ if (this.options_.bandwidth) {
+ this.bandwidth = this.options_.bandwidth;
+ }
+
+ if (this.options_.throughput) {
+ this.throughput = this.options_.throughput;
+ }
+
+ Object.defineProperties(this.stats, {
+ bandwidth: {
+ get: function get$$1() {
+ return _this3.bandwidth || 0;
+ },
+ enumerable: true
+ },
+ mediaRequests: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequests_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsAborted: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsAborted_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsTimedout: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsTimedout_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsErrored: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsErrored_() || 0;
+ },
+ enumerable: true
+ },
+ mediaTransferDuration: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaTransferDuration_() || 0;
+ },
+ enumerable: true
+ },
+ mediaBytesTransferred: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaBytesTransferred_() || 0;
+ },
+ enumerable: true
+ },
+ mediaSecondsLoaded: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaSecondsLoaded_() || 0;
+ },
+ enumerable: true
+ },
+ buffered: {
+ get: function get$$1() {
+ return timeRangesToArray(_this3.tech_.buffered());
+ },
+ enumerable: true
+ },
+ currentTime: {
+ get: function get$$1() {
+ return _this3.tech_.currentTime();
+ },
+ enumerable: true
+ },
+ currentSource: {
+ get: function get$$1() {
+ return _this3.tech_.currentSource_;
+ },
+ enumerable: true
+ },
+ currentTech: {
+ get: function get$$1() {
+ return _this3.tech_.name_;
+ },
+ enumerable: true
+ },
+ duration: {
+ get: function get$$1() {
+ return _this3.tech_.duration();
+ },
+ enumerable: true
+ },
+ master: {
+ get: function get$$1() {
+ return _this3.playlists.master;
+ },
+ enumerable: true
+ },
+ playerDimensions: {
+ get: function get$$1() {
+ return _this3.tech_.currentDimensions();
+ },
+ enumerable: true
+ },
+ seekable: {
+ get: function get$$1() {
+ return timeRangesToArray(_this3.tech_.seekable());
+ },
+ enumerable: true
+ },
+ timestamp: {
+ get: function get$$1() {
+ return Date.now();
+ },
+ enumerable: true
+ },
+ videoPlaybackQuality: {
+ get: function get$$1() {
+ return _this3.tech_.getVideoPlaybackQuality();
+ },
+ enumerable: true
+ }
+ });
+ this.tech_.one('canplay', this.masterPlaylistController_.setupFirstPlay.bind(this.masterPlaylistController_));
+ this.tech_.on('bandwidthupdate', function () {
+ if (_this3.options_.useBandwidthFromLocalStorage) {
+ updateVhsLocalStorage({
+ bandwidth: _this3.bandwidth,
+ throughput: Math.round(_this3.throughput)
+ });
+ }
+ });
+ this.masterPlaylistController_.on('selectedinitialmedia', function () {
+ // Add the manual rendition mix-in to HlsHandler
+ renditionSelectionMixin(_this3);
+ setupEmeOptions(_this3);
+ }); // the bandwidth of the primary segment loader is our best
+ // estimate of overall bandwidth
+
+ this.on(this.masterPlaylistController_, 'progress', function () {
+ this.tech_.trigger('progress');
+ });
+ this.tech_.ready(function () {
+ return _this3.setupQualityLevels_();
+ }); // do nothing if the tech has been disposed already
+ // this can occur if someone sets the src in player.ready(), for instance
+
+ if (!this.tech_.el()) {
+ return;
+ }
+
+ this.tech_.src(videojs$1.URL.createObjectURL(this.masterPlaylistController_.mediaSource));
+ }
+ /**
+ * Initializes the quality levels and sets listeners to update them.
+ *
+ * @method setupQualityLevels_
+ * @private
+ */
+
+ }, {
+ key: 'setupQualityLevels_',
+ value: function setupQualityLevels_() {
+ var _this4 = this;
+
+ var player = videojs$1.players[this.tech_.options_.playerId];
+
+ if (player && player.qualityLevels) {
+ this.qualityLevels_ = player.qualityLevels();
+ this.masterPlaylistController_.on('selectedinitialmedia', function () {
+ handleHlsLoadedMetadata(_this4.qualityLevels_, _this4);
+ });
+ this.playlists.on('mediachange', function () {
+ handleHlsMediaChange(_this4.qualityLevels_, _this4.playlists);
+ });
+ }
+ }
+ /**
+ * Begin playing the video.
+ */
+
+ }, {
+ key: 'play',
+ value: function play() {
+ this.masterPlaylistController_.play();
+ }
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'setCurrentTime',
+ value: function setCurrentTime(currentTime) {
+ this.masterPlaylistController_.setCurrentTime(currentTime);
+ }
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'duration',
+ value: function duration$$1() {
+ return this.masterPlaylistController_.duration();
+ }
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'seekable',
+ value: function seekable$$1() {
+ return this.masterPlaylistController_.seekable();
+ }
+ /**
+ * Abort all outstanding work and cleanup.
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ if (this.playbackWatcher_) {
+ this.playbackWatcher_.dispose();
+ }
+
+ if (this.masterPlaylistController_) {
+ this.masterPlaylistController_.dispose();
+ }
+
+ if (this.qualityLevels_) {
+ this.qualityLevels_.dispose();
+ }
+
+ if (this.player_) {
+ delete this.player_.vhs;
+ delete this.player_.dash;
+ delete this.player_.hls;
+ }
+
+ if (this.tech_ && this.tech_.hls) {
+ delete this.tech_.hls;
+ }
+
+ get$1(HlsHandler.prototype.__proto__ || Object.getPrototypeOf(HlsHandler.prototype), 'dispose', this).call(this);
+ }
+ }, {
+ key: 'convertToProgramTime',
+ value: function convertToProgramTime(time, callback) {
+ return getProgramTime({
+ playlist: this.masterPlaylistController_.media(),
+ time: time,
+ callback: callback
+ });
+ } // the player must be playing before calling this
+
+ }, {
+ key: 'seekToProgramTime',
+ value: function seekToProgramTime$$1(programTime, callback) {
+ var pauseAfterSeek = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
+ var retryCount = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 2;
+ return seekToProgramTime({
+ programTime: programTime,
+ playlist: this.masterPlaylistController_.media(),
+ retryCount: retryCount,
+ pauseAfterSeek: pauseAfterSeek,
+ seekTo: this.options_.seekTo,
+ tech: this.options_.tech,
+ callback: callback
+ });
+ }
+ }]);
+ return HlsHandler;
+}(Component$1);
+/**
+ * The Source Handler object, which informs video.js what additional
+ * MIME types are supported and sets up playback. It is registered
+ * automatically to the appropriate tech based on the capabilities of
+ * the browser it is running in. It is not necessary to use or modify
+ * this object in normal usage.
+ */
+
+
+var HlsSourceHandler = {
+ name: 'videojs-http-streaming',
+ VERSION: version$1,
+ canHandleSource: function canHandleSource(srcObj) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var localOptions = videojs$1.mergeOptions(videojs$1.options, options);
+ return HlsSourceHandler.canPlayType(srcObj.type, localOptions);
+ },
+ handleSource: function handleSource(source, tech) {
+ var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+ var localOptions = videojs$1.mergeOptions(videojs$1.options, options);
+ tech.hls = new HlsHandler(source, tech, localOptions);
+ tech.hls.xhr = xhrFactory();
+ tech.hls.src(source.src, source.type);
+ return tech.hls;
+ },
+ canPlayType: function canPlayType(type) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var _videojs$mergeOptions = videojs$1.mergeOptions(videojs$1.options, options),
+ overrideNative = _videojs$mergeOptions.hls.overrideNative;
+
+ var supportedType = simpleTypeFromSourceType(type);
+ var canUseMsePlayback = supportedType && (!Hls$1.supportsTypeNatively(supportedType) || overrideNative);
+ return canUseMsePlayback ? 'maybe' : '';
+ }
+};
+
+if (typeof videojs$1.MediaSource === 'undefined' || typeof videojs$1.URL === 'undefined') {
+ videojs$1.MediaSource = MediaSource;
+ videojs$1.URL = URL$1;
+} // register source handlers with the appropriate techs
+
+
+if (MediaSource.supportsNativeMediaSources()) {
+ videojs$1.getTech('Html5').registerSourceHandler(HlsSourceHandler, 0);
+}
+
+videojs$1.HlsHandler = HlsHandler;
+videojs$1.HlsSourceHandler = HlsSourceHandler;
+videojs$1.Hls = Hls$1;
+
+if (!videojs$1.use) {
+ videojs$1.registerComponent('Hls', Hls$1);
+}
+
+videojs$1.options.hls = videojs$1.options.hls || {};
+
+if (videojs$1.registerPlugin) {
+ videojs$1.registerPlugin('reloadSourceOnError', reloadSourceOnError);
+} else {
+ videojs$1.plugin('reloadSourceOnError', reloadSourceOnError);
+}
+
+export default videojs$1;