diff -r 3d4e9c994f10 -r a86126ab1dd4 wp/wp-includes/ID3/module.audio.dts.php
--- a/wp/wp-includes/ID3/module.audio.dts.php	Tue Oct 22 16:11:46 2019 +0200
+++ b/wp/wp-includes/ID3/module.audio.dts.php	Tue Dec 15 13:49:49 2020 +0100
@@ -1,11 +1,11 @@
 <?php
+
 /////////////////////////////////////////////////////////////////
 /// getID3() by James Heinrich <info@getid3.org>               //
-//  available at http://getid3.sourceforge.net                 //
-//            or http://www.getid3.org                         //
-//          also https://github.com/JamesHeinrich/getID3       //
-/////////////////////////////////////////////////////////////////
-// See readme.txt for more details                             //
+//  available at https://github.com/JamesHeinrich/getID3       //
+//            or https://www.getid3.org                        //
+//            or http://getid3.sourceforge.net                 //
+//  see readme.txt for more details                            //
 /////////////////////////////////////////////////////////////////
 //                                                             //
 // module.audio.dts.php                                        //
@@ -14,6 +14,9 @@
 //                                                             //
 /////////////////////////////////////////////////////////////////
 
+if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
+	exit;
+}
 
 /**
 * @tutorial http://wiki.multimedia.cx/index.php?title=DTS
@@ -21,21 +24,27 @@
 class getid3_dts extends getid3_handler
 {
 	/**
-	* Default DTS syncword used in native .cpt or .dts formats
-	*/
-    const syncword = "\x7F\xFE\x80\x01";
+	 * Default DTS syncword used in native .cpt or .dts formats.
+	 */
+	const syncword = "\x7F\xFE\x80\x01";
 
+	/**
+	 * @var int
+	 */
 	private $readBinDataOffset = 0;
 
-    /**
-    * Possible syncwords indicating bitstream encoding
-    */
-    public static $syncwords = array(
-    	0 => "\x7F\xFE\x80\x01",  // raw big-endian
-    	1 => "\xFE\x7F\x01\x80",  // raw little-endian
-    	2 => "\x1F\xFF\xE8\x00",  // 14-bit big-endian
-    	3 => "\xFF\x1F\x00\xE8"); // 14-bit little-endian
+	/**
+	 * Possible syncwords indicating bitstream encoding.
+	 */
+	public static $syncwords = array(
+		0 => "\x7F\xFE\x80\x01",  // raw big-endian
+		1 => "\xFE\x7F\x01\x80",  // raw little-endian
+		2 => "\x1F\xFF\xE8\x00",  // 14-bit big-endian
+		3 => "\xFF\x1F\x00\xE8"); // 14-bit little-endian
 
+	/**
+	 * @return bool
+	 */
 	public function Analyze() {
 		$info = &$this->getid3->info;
 		$info['fileformat'] = 'dts';
@@ -45,18 +54,18 @@
 
 		// check syncword
 		$sync = substr($DTSheader, 0, 4);
-        if (($encoding = array_search($sync, self::$syncwords)) !== false) {
+		if (($encoding = array_search($sync, self::$syncwords)) !== false) {
 
-        	$info['dts']['raw']['magic'] = $sync;
+			$info['dts']['raw']['magic'] = $sync;
 			$this->readBinDataOffset = 32;
 
-        } elseif ($this->isDependencyFor('matroska')) {
+		} elseif ($this->isDependencyFor('matroska')) {
 
 			// Matroska contains DTS without syncword encoded as raw big-endian format
 			$encoding = 0;
 			$this->readBinDataOffset = 0;
 
-        } else {
+		} else {
 
 			unset($info['fileformat']);
 			return $this->error('Expecting "'.implode('| ', array_map('getid3_lib::PrintHexBytes', self::$syncwords)).'" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes($sync).'"');
@@ -139,6 +148,12 @@
 		return true;
 	}
 
+	/**
+	 * @param string $bin
+	 * @param int $length
+	 *
+	 * @return int
+	 */
 	private function readBinData($bin, $length) {
 		$data = substr($bin, $this->readBinDataOffset, $length);
 		$this->readBinDataOffset += $length;
@@ -146,6 +161,11 @@
 		return bindec($data);
 	}
 
+	/**
+	 * @param int $index
+	 *
+	 * @return int|string|false
+	 */
 	public static function bitrateLookup($index) {
 		static $lookup = array(
 			0  => 32000,
@@ -184,6 +204,11 @@
 		return (isset($lookup[$index]) ? $lookup[$index] : false);
 	}
 
+	/**
+	 * @param int $index
+	 *
+	 * @return int|string|false
+	 */
 	public static function sampleRateLookup($index) {
 		static $lookup = array(
 			0  => 'invalid',
@@ -206,6 +231,11 @@
 		return (isset($lookup[$index]) ? $lookup[$index] : false);
 	}
 
+	/**
+	 * @param int $index
+	 *
+	 * @return int|false
+	 */
 	public static function bitPerSampleLookup($index) {
 		static $lookup = array(
 			0  => 16,
@@ -216,44 +246,46 @@
 		return (isset($lookup[$index]) ? $lookup[$index] : false);
 	}
 
+	/**
+	 * @param int $index
+	 *
+	 * @return int|false
+	 */
 	public static function numChannelsLookup($index) {
 		switch ($index) {
 			case 0:
 				return 1;
-				break;
 			case 1:
 			case 2:
 			case 3:
 			case 4:
 				return 2;
-				break;
 			case 5:
 			case 6:
 				return 3;
-				break;
 			case 7:
 			case 8:
 				return 4;
-				break;
 			case 9:
 				return 5;
-				break;
 			case 10:
 			case 11:
 			case 12:
 				return 6;
-				break;
 			case 13:
 				return 7;
-				break;
 			case 14:
 			case 15:
 				return 8;
-				break;
 		}
 		return false;
 	}
 
+	/**
+	 * @param int $index
+	 *
+	 * @return string
+	 */
 	public static function channelArrangementLookup($index) {
 		static $lookup = array(
 			0  => 'A',
@@ -276,14 +308,18 @@
 		return (isset($lookup[$index]) ? $lookup[$index] : 'user-defined');
 	}
 
+	/**
+	 * @param int $index
+	 * @param int $version
+	 *
+	 * @return int|false
+	 */
 	public static function dialogNormalization($index, $version) {
 		switch ($version) {
 			case 7:
 				return 0 - $index;
-				break;
 			case 6:
 				return 0 - 16 - $index;
-				break;
 		}
 		return false;
 	}