--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/ID3/getid3.lib.php Wed Nov 06 03:21:17 2013 +0000
@@ -0,0 +1,1341 @@
+<?php
+/////////////////////////////////////////////////////////////////
+/// getID3() by James Heinrich <info@getid3.org> //
+// available at http://getid3.sourceforge.net //
+// or http://www.getid3.org //
+/////////////////////////////////////////////////////////////////
+// //
+// getid3.lib.php - part of getID3() //
+// See readme.txt for more details //
+// ///
+/////////////////////////////////////////////////////////////////
+
+
+class getid3_lib
+{
+
+ public static function PrintHexBytes($string, $hex=true, $spaces=true, $htmlencoding='UTF-8') {
+ $returnstring = '';
+ for ($i = 0; $i < strlen($string); $i++) {
+ if ($hex) {
+ $returnstring .= str_pad(dechex(ord($string{$i})), 2, '0', STR_PAD_LEFT);
+ } else {
+ $returnstring .= ' '.(preg_match("#[\x20-\x7E]#", $string{$i}) ? $string{$i} : '¤');
+ }
+ if ($spaces) {
+ $returnstring .= ' ';
+ }
+ }
+ if (!empty($htmlencoding)) {
+ if ($htmlencoding === true) {
+ $htmlencoding = 'UTF-8'; // prior to getID3 v1.9.0 the function's 4th parameter was boolean
+ }
+ $returnstring = htmlentities($returnstring, ENT_QUOTES, $htmlencoding);
+ }
+ return $returnstring;
+ }
+
+ public static function trunc($floatnumber) {
+ // truncates a floating-point number at the decimal point
+ // returns int (if possible, otherwise float)
+ if ($floatnumber >= 1) {
+ $truncatednumber = floor($floatnumber);
+ } elseif ($floatnumber <= -1) {
+ $truncatednumber = ceil($floatnumber);
+ } else {
+ $truncatednumber = 0;
+ }
+ if (self::intValueSupported($truncatednumber)) {
+ $truncatednumber = (int) $truncatednumber;
+ }
+ return $truncatednumber;
+ }
+
+
+ public static function safe_inc(&$variable, $increment=1) {
+ if (isset($variable)) {
+ $variable += $increment;
+ } else {
+ $variable = $increment;
+ }
+ return true;
+ }
+
+ public static function CastAsInt($floatnum) {
+ // convert to float if not already
+ $floatnum = (float) $floatnum;
+
+ // convert a float to type int, only if possible
+ if (self::trunc($floatnum) == $floatnum) {
+ // it's not floating point
+ if (self::intValueSupported($floatnum)) {
+ // it's within int range
+ $floatnum = (int) $floatnum;
+ }
+ }
+ return $floatnum;
+ }
+
+ public static function intValueSupported($num) {
+ // check if integers are 64-bit
+ static $hasINT64 = null;
+ if ($hasINT64 === null) { // 10x faster than is_null()
+ $hasINT64 = is_int(pow(2, 31)); // 32-bit int are limited to (2^31)-1
+ if (!$hasINT64 && !defined('PHP_INT_MIN')) {
+ define('PHP_INT_MIN', ~PHP_INT_MAX);
+ }
+ }
+ // if integers are 64-bit - no other check required
+ if ($hasINT64 || (($num <= PHP_INT_MAX) && ($num >= PHP_INT_MIN))) {
+ return true;
+ }
+ return false;
+ }
+
+ public static function DecimalizeFraction($fraction) {
+ list($numerator, $denominator) = explode('/', $fraction);
+ return $numerator / ($denominator ? $denominator : 1);
+ }
+
+
+ public static function DecimalBinary2Float($binarynumerator) {
+ $numerator = self::Bin2Dec($binarynumerator);
+ $denominator = self::Bin2Dec('1'.str_repeat('0', strlen($binarynumerator)));
+ return ($numerator / $denominator);
+ }
+
+
+ public static function NormalizeBinaryPoint($binarypointnumber, $maxbits=52) {
+ // http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html
+ if (strpos($binarypointnumber, '.') === false) {
+ $binarypointnumber = '0.'.$binarypointnumber;
+ } elseif ($binarypointnumber{0} == '.') {
+ $binarypointnumber = '0'.$binarypointnumber;
+ }
+ $exponent = 0;
+ while (($binarypointnumber{0} != '1') || (substr($binarypointnumber, 1, 1) != '.')) {
+ if (substr($binarypointnumber, 1, 1) == '.') {
+ $exponent--;
+ $binarypointnumber = substr($binarypointnumber, 2, 1).'.'.substr($binarypointnumber, 3);
+ } else {
+ $pointpos = strpos($binarypointnumber, '.');
+ $exponent += ($pointpos - 1);
+ $binarypointnumber = str_replace('.', '', $binarypointnumber);
+ $binarypointnumber = $binarypointnumber{0}.'.'.substr($binarypointnumber, 1);
+ }
+ }
+ $binarypointnumber = str_pad(substr($binarypointnumber, 0, $maxbits + 2), $maxbits + 2, '0', STR_PAD_RIGHT);
+ return array('normalized'=>$binarypointnumber, 'exponent'=>(int) $exponent);
+ }
+
+
+ public static function Float2BinaryDecimal($floatvalue) {
+ // http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html
+ $maxbits = 128; // to how many bits of precision should the calculations be taken?
+ $intpart = self::trunc($floatvalue);
+ $floatpart = abs($floatvalue - $intpart);
+ $pointbitstring = '';
+ while (($floatpart != 0) && (strlen($pointbitstring) < $maxbits)) {
+ $floatpart *= 2;
+ $pointbitstring .= (string) self::trunc($floatpart);
+ $floatpart -= self::trunc($floatpart);
+ }
+ $binarypointnumber = decbin($intpart).'.'.$pointbitstring;
+ return $binarypointnumber;
+ }
+
+
+ public static function Float2String($floatvalue, $bits) {
+ // http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee-expl.html
+ switch ($bits) {
+ case 32:
+ $exponentbits = 8;
+ $fractionbits = 23;
+ break;
+
+ case 64:
+ $exponentbits = 11;
+ $fractionbits = 52;
+ break;
+
+ default:
+ return false;
+ break;
+ }
+ if ($floatvalue >= 0) {
+ $signbit = '0';
+ } else {
+ $signbit = '1';
+ }
+ $normalizedbinary = self::NormalizeBinaryPoint(self::Float2BinaryDecimal($floatvalue), $fractionbits);
+ $biasedexponent = pow(2, $exponentbits - 1) - 1 + $normalizedbinary['exponent']; // (127 or 1023) +/- exponent
+ $exponentbitstring = str_pad(decbin($biasedexponent), $exponentbits, '0', STR_PAD_LEFT);
+ $fractionbitstring = str_pad(substr($normalizedbinary['normalized'], 2), $fractionbits, '0', STR_PAD_RIGHT);
+
+ return self::BigEndian2String(self::Bin2Dec($signbit.$exponentbitstring.$fractionbitstring), $bits % 8, false);
+ }
+
+
+ public static function LittleEndian2Float($byteword) {
+ return self::BigEndian2Float(strrev($byteword));
+ }
+
+
+ public static function BigEndian2Float($byteword) {
+ // ANSI/IEEE Standard 754-1985, Standard for Binary Floating Point Arithmetic
+ // http://www.psc.edu/general/software/packages/ieee/ieee.html
+ // http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee.html
+
+ $bitword = self::BigEndian2Bin($byteword);
+ if (!$bitword) {
+ return 0;
+ }
+ $signbit = $bitword{0};
+
+ switch (strlen($byteword) * 8) {
+ case 32:
+ $exponentbits = 8;
+ $fractionbits = 23;
+ break;
+
+ case 64:
+ $exponentbits = 11;
+ $fractionbits = 52;
+ break;
+
+ case 80:
+ // 80-bit Apple SANE format
+ // http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/
+ $exponentstring = substr($bitword, 1, 15);
+ $isnormalized = intval($bitword{16});
+ $fractionstring = substr($bitword, 17, 63);
+ $exponent = pow(2, self::Bin2Dec($exponentstring) - 16383);
+ $fraction = $isnormalized + self::DecimalBinary2Float($fractionstring);
+ $floatvalue = $exponent * $fraction;
+ if ($signbit == '1') {
+ $floatvalue *= -1;
+ }
+ return $floatvalue;
+ break;
+
+ default:
+ return false;
+ break;
+ }
+ $exponentstring = substr($bitword, 1, $exponentbits);
+ $fractionstring = substr($bitword, $exponentbits + 1, $fractionbits);
+ $exponent = self::Bin2Dec($exponentstring);
+ $fraction = self::Bin2Dec($fractionstring);
+
+ if (($exponent == (pow(2, $exponentbits) - 1)) && ($fraction != 0)) {
+ // Not a Number
+ $floatvalue = false;
+ } elseif (($exponent == (pow(2, $exponentbits) - 1)) && ($fraction == 0)) {
+ if ($signbit == '1') {
+ $floatvalue = '-infinity';
+ } else {
+ $floatvalue = '+infinity';
+ }
+ } elseif (($exponent == 0) && ($fraction == 0)) {
+ if ($signbit == '1') {
+ $floatvalue = -0;
+ } else {
+ $floatvalue = 0;
+ }
+ $floatvalue = ($signbit ? 0 : -0);
+ } elseif (($exponent == 0) && ($fraction != 0)) {
+ // These are 'unnormalized' values
+ $floatvalue = pow(2, (-1 * (pow(2, $exponentbits - 1) - 2))) * self::DecimalBinary2Float($fractionstring);
+ if ($signbit == '1') {
+ $floatvalue *= -1;
+ }
+ } elseif ($exponent != 0) {
+ $floatvalue = pow(2, ($exponent - (pow(2, $exponentbits - 1) - 1))) * (1 + self::DecimalBinary2Float($fractionstring));
+ if ($signbit == '1') {
+ $floatvalue *= -1;
+ }
+ }
+ return (float) $floatvalue;
+ }
+
+
+ public static function BigEndian2Int($byteword, $synchsafe=false, $signed=false) {
+ $intvalue = 0;
+ $bytewordlen = strlen($byteword);
+ if ($bytewordlen == 0) {
+ return false;
+ }
+ for ($i = 0; $i < $bytewordlen; $i++) {
+ if ($synchsafe) { // disregard MSB, effectively 7-bit bytes
+ //$intvalue = $intvalue | (ord($byteword{$i}) & 0x7F) << (($bytewordlen - 1 - $i) * 7); // faster, but runs into problems past 2^31 on 32-bit systems
+ $intvalue += (ord($byteword{$i}) & 0x7F) * pow(2, ($bytewordlen - 1 - $i) * 7);
+ } else {
+ $intvalue += ord($byteword{$i}) * pow(256, ($bytewordlen - 1 - $i));
+ }
+ }
+ if ($signed && !$synchsafe) {
+ // synchsafe ints are not allowed to be signed
+ if ($bytewordlen <= PHP_INT_SIZE) {
+ $signMaskBit = 0x80 << (8 * ($bytewordlen - 1));
+ if ($intvalue & $signMaskBit) {
+ $intvalue = 0 - ($intvalue & ($signMaskBit - 1));
+ }
+ } else {
+ throw new Exception('ERROR: Cannot have signed integers larger than '.(8 * PHP_INT_SIZE).'-bits ('.strlen($byteword).') in self::BigEndian2Int()');
+ break;
+ }
+ }
+ return self::CastAsInt($intvalue);
+ }
+
+
+ public static function LittleEndian2Int($byteword, $signed=false) {
+ return self::BigEndian2Int(strrev($byteword), false, $signed);
+ }
+
+
+ public static function BigEndian2Bin($byteword) {
+ $binvalue = '';
+ $bytewordlen = strlen($byteword);
+ for ($i = 0; $i < $bytewordlen; $i++) {
+ $binvalue .= str_pad(decbin(ord($byteword{$i})), 8, '0', STR_PAD_LEFT);
+ }
+ return $binvalue;
+ }
+
+
+ public static function BigEndian2String($number, $minbytes=1, $synchsafe=false, $signed=false) {
+ if ($number < 0) {
+ throw new Exception('ERROR: self::BigEndian2String() does not support negative numbers');
+ }
+ $maskbyte = (($synchsafe || $signed) ? 0x7F : 0xFF);
+ $intstring = '';
+ if ($signed) {
+ if ($minbytes > PHP_INT_SIZE) {
+ throw new Exception('ERROR: Cannot have signed integers larger than '.(8 * PHP_INT_SIZE).'-bits in self::BigEndian2String()');
+ }
+ $number = $number & (0x80 << (8 * ($minbytes - 1)));
+ }
+ while ($number != 0) {
+ $quotient = ($number / ($maskbyte + 1));
+ $intstring = chr(ceil(($quotient - floor($quotient)) * $maskbyte)).$intstring;
+ $number = floor($quotient);
+ }
+ return str_pad($intstring, $minbytes, "\x00", STR_PAD_LEFT);
+ }
+
+
+ public static function Dec2Bin($number) {
+ while ($number >= 256) {
+ $bytes[] = (($number / 256) - (floor($number / 256))) * 256;
+ $number = floor($number / 256);
+ }
+ $bytes[] = $number;
+ $binstring = '';
+ for ($i = 0; $i < count($bytes); $i++) {
+ $binstring = (($i == count($bytes) - 1) ? decbin($bytes[$i]) : str_pad(decbin($bytes[$i]), 8, '0', STR_PAD_LEFT)).$binstring;
+ }
+ return $binstring;
+ }
+
+
+ public static function Bin2Dec($binstring, $signed=false) {
+ $signmult = 1;
+ if ($signed) {
+ if ($binstring{0} == '1') {
+ $signmult = -1;
+ }
+ $binstring = substr($binstring, 1);
+ }
+ $decvalue = 0;
+ for ($i = 0; $i < strlen($binstring); $i++) {
+ $decvalue += ((int) substr($binstring, strlen($binstring) - $i - 1, 1)) * pow(2, $i);
+ }
+ return self::CastAsInt($decvalue * $signmult);
+ }
+
+
+ public static function Bin2String($binstring) {
+ // return 'hi' for input of '0110100001101001'
+ $string = '';
+ $binstringreversed = strrev($binstring);
+ for ($i = 0; $i < strlen($binstringreversed); $i += 8) {
+ $string = chr(self::Bin2Dec(strrev(substr($binstringreversed, $i, 8)))).$string;
+ }
+ return $string;
+ }
+
+
+ public static function LittleEndian2String($number, $minbytes=1, $synchsafe=false) {
+ $intstring = '';
+ while ($number > 0) {
+ if ($synchsafe) {
+ $intstring = $intstring.chr($number & 127);
+ $number >>= 7;
+ } else {
+ $intstring = $intstring.chr($number & 255);
+ $number >>= 8;
+ }
+ }
+ return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT);
+ }
+
+
+ public static function array_merge_clobber($array1, $array2) {
+ // written by kcØhireability*com
+ // taken from http://www.php.net/manual/en/function.array-merge-recursive.php
+ if (!is_array($array1) || !is_array($array2)) {
+ return false;
+ }
+ $newarray = $array1;
+ foreach ($array2 as $key => $val) {
+ if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) {
+ $newarray[$key] = self::array_merge_clobber($newarray[$key], $val);
+ } else {
+ $newarray[$key] = $val;
+ }
+ }
+ return $newarray;
+ }
+
+
+ public static function array_merge_noclobber($array1, $array2) {
+ if (!is_array($array1) || !is_array($array2)) {
+ return false;
+ }
+ $newarray = $array1;
+ foreach ($array2 as $key => $val) {
+ if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) {
+ $newarray[$key] = self::array_merge_noclobber($newarray[$key], $val);
+ } elseif (!isset($newarray[$key])) {
+ $newarray[$key] = $val;
+ }
+ }
+ return $newarray;
+ }
+
+
+ public static function ksort_recursive(&$theArray) {
+ ksort($theArray);
+ foreach ($theArray as $key => $value) {
+ if (is_array($value)) {
+ self::ksort_recursive($theArray[$key]);
+ }
+ }
+ return true;
+ }
+
+ public static function fileextension($filename, $numextensions=1) {
+ if (strstr($filename, '.')) {
+ $reversedfilename = strrev($filename);
+ $offset = 0;
+ for ($i = 0; $i < $numextensions; $i++) {
+ $offset = strpos($reversedfilename, '.', $offset + 1);
+ if ($offset === false) {
+ return '';
+ }
+ }
+ return strrev(substr($reversedfilename, 0, $offset));
+ }
+ return '';
+ }
+
+
+ public static function PlaytimeString($seconds) {
+ $sign = (($seconds < 0) ? '-' : '');
+ $seconds = round(abs($seconds));
+ $H = (int) floor( $seconds / 3600);
+ $M = (int) floor(($seconds - (3600 * $H) ) / 60);
+ $S = (int) round( $seconds - (3600 * $H) - (60 * $M) );
+ return $sign.($H ? $H.':' : '').($H ? str_pad($M, 2, '0', STR_PAD_LEFT) : intval($M)).':'.str_pad($S, 2, 0, STR_PAD_LEFT);
+ }
+
+
+ public static function DateMac2Unix($macdate) {
+ // Macintosh timestamp: seconds since 00:00h January 1, 1904
+ // UNIX timestamp: seconds since 00:00h January 1, 1970
+ return self::CastAsInt($macdate - 2082844800);
+ }
+
+
+ public static function FixedPoint8_8($rawdata) {
+ return self::BigEndian2Int(substr($rawdata, 0, 1)) + (float) (self::BigEndian2Int(substr($rawdata, 1, 1)) / pow(2, 8));
+ }
+
+
+ public static function FixedPoint16_16($rawdata) {
+ return self::BigEndian2Int(substr($rawdata, 0, 2)) + (float) (self::BigEndian2Int(substr($rawdata, 2, 2)) / pow(2, 16));
+ }
+
+
+ public static function FixedPoint2_30($rawdata) {
+ $binarystring = self::BigEndian2Bin($rawdata);
+ return self::Bin2Dec(substr($binarystring, 0, 2)) + (float) (self::Bin2Dec(substr($binarystring, 2, 30)) / pow(2, 30));
+ }
+
+
+ public static function CreateDeepArray($ArrayPath, $Separator, $Value) {
+ // assigns $Value to a nested array path:
+ // $foo = self::CreateDeepArray('/path/to/my', '/', 'file.txt')
+ // is the same as:
+ // $foo = array('path'=>array('to'=>'array('my'=>array('file.txt'))));
+ // or
+ // $foo['path']['to']['my'] = 'file.txt';
+ $ArrayPath = ltrim($ArrayPath, $Separator);
+ if (($pos = strpos($ArrayPath, $Separator)) !== false) {
+ $ReturnedArray[substr($ArrayPath, 0, $pos)] = self::CreateDeepArray(substr($ArrayPath, $pos + 1), $Separator, $Value);
+ } else {
+ $ReturnedArray[$ArrayPath] = $Value;
+ }
+ return $ReturnedArray;
+ }
+
+ public static function array_max($arraydata, $returnkey=false) {
+ $maxvalue = false;
+ $maxkey = false;
+ foreach ($arraydata as $key => $value) {
+ if (!is_array($value)) {
+ if ($value > $maxvalue) {
+ $maxvalue = $value;
+ $maxkey = $key;
+ }
+ }
+ }
+ return ($returnkey ? $maxkey : $maxvalue);
+ }
+
+ public static function array_min($arraydata, $returnkey=false) {
+ $minvalue = false;
+ $minkey = false;
+ foreach ($arraydata as $key => $value) {
+ if (!is_array($value)) {
+ if ($value > $minvalue) {
+ $minvalue = $value;
+ $minkey = $key;
+ }
+ }
+ }
+ return ($returnkey ? $minkey : $minvalue);
+ }
+
+ public static function XML2array($XMLstring) {
+ if (function_exists('simplexml_load_string')) {
+ if (function_exists('get_object_vars')) {
+ $XMLobject = simplexml_load_string($XMLstring);
+ return self::SimpleXMLelement2array($XMLobject);
+ }
+ }
+ return false;
+ }
+
+ public static function SimpleXMLelement2array($XMLobject) {
+ if (!is_object($XMLobject) && !is_array($XMLobject)) {
+ return $XMLobject;
+ }
+ $XMLarray = (is_object($XMLobject) ? get_object_vars($XMLobject) : $XMLobject);
+ foreach ($XMLarray as $key => $value) {
+ $XMLarray[$key] = self::SimpleXMLelement2array($value);
+ }
+ return $XMLarray;
+ }
+
+
+ // Allan Hansen <ahØartemis*dk>
+ // self::md5_data() - returns md5sum for a file from startuing position to absolute end position
+ public static function hash_data($file, $offset, $end, $algorithm) {
+ static $tempdir = '';
+ if (!self::intValueSupported($end)) {
+ return false;
+ }
+ switch ($algorithm) {
+ case 'md5':
+ $hash_function = 'md5_file';
+ $unix_call = 'md5sum';
+ $windows_call = 'md5sum.exe';
+ $hash_length = 32;
+ break;
+
+ case 'sha1':
+ $hash_function = 'sha1_file';
+ $unix_call = 'sha1sum';
+ $windows_call = 'sha1sum.exe';
+ $hash_length = 40;
+ break;
+
+ default:
+ throw new Exception('Invalid algorithm ('.$algorithm.') in self::hash_data()');
+ break;
+ }
+ $size = $end - $offset;
+ while (true) {
+ if (GETID3_OS_ISWINDOWS) {
+
+ // It seems that sha1sum.exe for Windows only works on physical files, does not accept piped data
+ // Fall back to create-temp-file method:
+ if ($algorithm == 'sha1') {
+ break;
+ }
+
+ $RequiredFiles = array('cygwin1.dll', 'head.exe', 'tail.exe', $windows_call);
+ foreach ($RequiredFiles as $required_file) {
+ if (!is_readable(GETID3_HELPERAPPSDIR.$required_file)) {
+ // helper apps not available - fall back to old method
+ break 2;
+ }
+ }
+ $commandline = GETID3_HELPERAPPSDIR.'head.exe -c '.$end.' '.escapeshellarg(str_replace('/', DIRECTORY_SEPARATOR, $file)).' | ';
+ $commandline .= GETID3_HELPERAPPSDIR.'tail.exe -c '.$size.' | ';
+ $commandline .= GETID3_HELPERAPPSDIR.$windows_call;
+
+ } else {
+
+ $commandline = 'head -c'.$end.' '.escapeshellarg($file).' | ';
+ $commandline .= 'tail -c'.$size.' | ';
+ $commandline .= $unix_call;
+
+ }
+ if (preg_match('#(1|ON)#i', ini_get('safe_mode'))) {
+ //throw new Exception('PHP running in Safe Mode - backtick operator not available, using slower non-system-call '.$algorithm.' algorithm');
+ break;
+ }
+ return substr(`$commandline`, 0, $hash_length);
+ }
+
+ if (empty($tempdir)) {
+ // yes this is ugly, feel free to suggest a better way
+ require_once(dirname(__FILE__).'/getid3.php');
+ $getid3_temp = new getID3();
+ $tempdir = $getid3_temp->tempdir;
+ unset($getid3_temp);
+ }
+ // try to create a temporary file in the system temp directory - invalid dirname should force to system temp dir
+ if (($data_filename = tempnam($tempdir, 'gI3')) === false) {
+ // can't find anywhere to create a temp file, just fail
+ return false;
+ }
+
+ // Init
+ $result = false;
+
+ // copy parts of file
+ try {
+ self::CopyFileParts($file, $data_filename, $offset, $end - $offset);
+ $result = $hash_function($data_filename);
+ } catch (Exception $e) {
+ throw new Exception('self::CopyFileParts() failed in getid_lib::hash_data(): '.$e->getMessage());
+ }
+ unlink($data_filename);
+ return $result;
+ }
+
+ public static function CopyFileParts($filename_source, $filename_dest, $offset, $length) {
+ if (!self::intValueSupported($offset + $length)) {
+ throw new Exception('cannot copy file portion, it extends beyond the '.round(PHP_INT_MAX / 1073741824).'GB limit');
+ }
+ if (is_readable($filename_source) && is_file($filename_source) && ($fp_src = fopen($filename_source, 'rb'))) {
+ if (($fp_dest = fopen($filename_dest, 'wb'))) {
+ if (fseek($fp_src, $offset, SEEK_SET) == 0) {
+ $byteslefttowrite = $length;
+ while (($byteslefttowrite > 0) && ($buffer = fread($fp_src, min($byteslefttowrite, getID3::FREAD_BUFFER_SIZE)))) {
+ $byteswritten = fwrite($fp_dest, $buffer, $byteslefttowrite);
+ $byteslefttowrite -= $byteswritten;
+ }
+ return true;
+ } else {
+ throw new Exception('failed to seek to offset '.$offset.' in '.$filename_source);
+ }
+ fclose($fp_dest);
+ } else {
+ throw new Exception('failed to create file for writing '.$filename_dest);
+ }
+ fclose($fp_src);
+ } else {
+ throw new Exception('failed to open file for reading '.$filename_source);
+ }
+ return false;
+ }
+
+ public static function iconv_fallback_int_utf8($charval) {
+ if ($charval < 128) {
+ // 0bbbbbbb
+ $newcharstring = chr($charval);
+ } elseif ($charval < 2048) {
+ // 110bbbbb 10bbbbbb
+ $newcharstring = chr(($charval >> 6) | 0xC0);
+ $newcharstring .= chr(($charval & 0x3F) | 0x80);
+ } elseif ($charval < 65536) {
+ // 1110bbbb 10bbbbbb 10bbbbbb
+ $newcharstring = chr(($charval >> 12) | 0xE0);
+ $newcharstring .= chr(($charval >> 6) | 0xC0);
+ $newcharstring .= chr(($charval & 0x3F) | 0x80);
+ } else {
+ // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
+ $newcharstring = chr(($charval >> 18) | 0xF0);
+ $newcharstring .= chr(($charval >> 12) | 0xC0);
+ $newcharstring .= chr(($charval >> 6) | 0xC0);
+ $newcharstring .= chr(($charval & 0x3F) | 0x80);
+ }
+ return $newcharstring;
+ }
+
+ // ISO-8859-1 => UTF-8
+ public static function iconv_fallback_iso88591_utf8($string, $bom=false) {
+ if (function_exists('utf8_encode')) {
+ return utf8_encode($string);
+ }
+ // utf8_encode() unavailable, use getID3()'s iconv_fallback() conversions (possibly PHP is compiled without XML support)
+ $newcharstring = '';
+ if ($bom) {
+ $newcharstring .= "\xEF\xBB\xBF";
+ }
+ for ($i = 0; $i < strlen($string); $i++) {
+ $charval = ord($string{$i});
+ $newcharstring .= self::iconv_fallback_int_utf8($charval);
+ }
+ return $newcharstring;
+ }
+
+ // ISO-8859-1 => UTF-16BE
+ public static function iconv_fallback_iso88591_utf16be($string, $bom=false) {
+ $newcharstring = '';
+ if ($bom) {
+ $newcharstring .= "\xFE\xFF";
+ }
+ for ($i = 0; $i < strlen($string); $i++) {
+ $newcharstring .= "\x00".$string{$i};
+ }
+ return $newcharstring;
+ }
+
+ // ISO-8859-1 => UTF-16LE
+ public static function iconv_fallback_iso88591_utf16le($string, $bom=false) {
+ $newcharstring = '';
+ if ($bom) {
+ $newcharstring .= "\xFF\xFE";
+ }
+ for ($i = 0; $i < strlen($string); $i++) {
+ $newcharstring .= $string{$i}."\x00";
+ }
+ return $newcharstring;
+ }
+
+ // ISO-8859-1 => UTF-16LE (BOM)
+ public static function iconv_fallback_iso88591_utf16($string) {
+ return self::iconv_fallback_iso88591_utf16le($string, true);
+ }
+
+ // UTF-8 => ISO-8859-1
+ public static function iconv_fallback_utf8_iso88591($string) {
+ if (function_exists('utf8_decode')) {
+ return utf8_decode($string);
+ }
+ // utf8_decode() unavailable, use getID3()'s iconv_fallback() conversions (possibly PHP is compiled without XML support)
+ $newcharstring = '';
+ $offset = 0;
+ $stringlength = strlen($string);
+ while ($offset < $stringlength) {
+ if ((ord($string{$offset}) | 0x07) == 0xF7) {
+ // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
+ $charval = ((ord($string{($offset + 0)}) & 0x07) << 18) &
+ ((ord($string{($offset + 1)}) & 0x3F) << 12) &
+ ((ord($string{($offset + 2)}) & 0x3F) << 6) &
+ (ord($string{($offset + 3)}) & 0x3F);
+ $offset += 4;
+ } elseif ((ord($string{$offset}) | 0x0F) == 0xEF) {
+ // 1110bbbb 10bbbbbb 10bbbbbb
+ $charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) &
+ ((ord($string{($offset + 1)}) & 0x3F) << 6) &
+ (ord($string{($offset + 2)}) & 0x3F);
+ $offset += 3;
+ } elseif ((ord($string{$offset}) | 0x1F) == 0xDF) {
+ // 110bbbbb 10bbbbbb
+ $charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) &
+ (ord($string{($offset + 1)}) & 0x3F);
+ $offset += 2;
+ } elseif ((ord($string{$offset}) | 0x7F) == 0x7F) {
+ // 0bbbbbbb
+ $charval = ord($string{$offset});
+ $offset += 1;
+ } else {
+ // error? throw some kind of warning here?
+ $charval = false;
+ $offset += 1;
+ }
+ if ($charval !== false) {
+ $newcharstring .= (($charval < 256) ? chr($charval) : '?');
+ }
+ }
+ return $newcharstring;
+ }
+
+ // UTF-8 => UTF-16BE
+ public static function iconv_fallback_utf8_utf16be($string, $bom=false) {
+ $newcharstring = '';
+ if ($bom) {
+ $newcharstring .= "\xFE\xFF";
+ }
+ $offset = 0;
+ $stringlength = strlen($string);
+ while ($offset < $stringlength) {
+ if ((ord($string{$offset}) | 0x07) == 0xF7) {
+ // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
+ $charval = ((ord($string{($offset + 0)}) & 0x07) << 18) &
+ ((ord($string{($offset + 1)}) & 0x3F) << 12) &
+ ((ord($string{($offset + 2)}) & 0x3F) << 6) &
+ (ord($string{($offset + 3)}) & 0x3F);
+ $offset += 4;
+ } elseif ((ord($string{$offset}) | 0x0F) == 0xEF) {
+ // 1110bbbb 10bbbbbb 10bbbbbb
+ $charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) &
+ ((ord($string{($offset + 1)}) & 0x3F) << 6) &
+ (ord($string{($offset + 2)}) & 0x3F);
+ $offset += 3;
+ } elseif ((ord($string{$offset}) | 0x1F) == 0xDF) {
+ // 110bbbbb 10bbbbbb
+ $charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) &
+ (ord($string{($offset + 1)}) & 0x3F);
+ $offset += 2;
+ } elseif ((ord($string{$offset}) | 0x7F) == 0x7F) {
+ // 0bbbbbbb
+ $charval = ord($string{$offset});
+ $offset += 1;
+ } else {
+ // error? throw some kind of warning here?
+ $charval = false;
+ $offset += 1;
+ }
+ if ($charval !== false) {
+ $newcharstring .= (($charval < 65536) ? self::BigEndian2String($charval, 2) : "\x00".'?');
+ }
+ }
+ return $newcharstring;
+ }
+
+ // UTF-8 => UTF-16LE
+ public static function iconv_fallback_utf8_utf16le($string, $bom=false) {
+ $newcharstring = '';
+ if ($bom) {
+ $newcharstring .= "\xFF\xFE";
+ }
+ $offset = 0;
+ $stringlength = strlen($string);
+ while ($offset < $stringlength) {
+ if ((ord($string{$offset}) | 0x07) == 0xF7) {
+ // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
+ $charval = ((ord($string{($offset + 0)}) & 0x07) << 18) &
+ ((ord($string{($offset + 1)}) & 0x3F) << 12) &
+ ((ord($string{($offset + 2)}) & 0x3F) << 6) &
+ (ord($string{($offset + 3)}) & 0x3F);
+ $offset += 4;
+ } elseif ((ord($string{$offset}) | 0x0F) == 0xEF) {
+ // 1110bbbb 10bbbbbb 10bbbbbb
+ $charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) &
+ ((ord($string{($offset + 1)}) & 0x3F) << 6) &
+ (ord($string{($offset + 2)}) & 0x3F);
+ $offset += 3;
+ } elseif ((ord($string{$offset}) | 0x1F) == 0xDF) {
+ // 110bbbbb 10bbbbbb
+ $charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) &
+ (ord($string{($offset + 1)}) & 0x3F);
+ $offset += 2;
+ } elseif ((ord($string{$offset}) | 0x7F) == 0x7F) {
+ // 0bbbbbbb
+ $charval = ord($string{$offset});
+ $offset += 1;
+ } else {
+ // error? maybe throw some warning here?
+ $charval = false;
+ $offset += 1;
+ }
+ if ($charval !== false) {
+ $newcharstring .= (($charval < 65536) ? self::LittleEndian2String($charval, 2) : '?'."\x00");
+ }
+ }
+ return $newcharstring;
+ }
+
+ // UTF-8 => UTF-16LE (BOM)
+ public static function iconv_fallback_utf8_utf16($string) {
+ return self::iconv_fallback_utf8_utf16le($string, true);
+ }
+
+ // UTF-16BE => UTF-8
+ public static function iconv_fallback_utf16be_utf8($string) {
+ if (substr($string, 0, 2) == "\xFE\xFF") {
+ // strip BOM
+ $string = substr($string, 2);
+ }
+ $newcharstring = '';
+ for ($i = 0; $i < strlen($string); $i += 2) {
+ $charval = self::BigEndian2Int(substr($string, $i, 2));
+ $newcharstring .= self::iconv_fallback_int_utf8($charval);
+ }
+ return $newcharstring;
+ }
+
+ // UTF-16LE => UTF-8
+ public static function iconv_fallback_utf16le_utf8($string) {
+ if (substr($string, 0, 2) == "\xFF\xFE") {
+ // strip BOM
+ $string = substr($string, 2);
+ }
+ $newcharstring = '';
+ for ($i = 0; $i < strlen($string); $i += 2) {
+ $charval = self::LittleEndian2Int(substr($string, $i, 2));
+ $newcharstring .= self::iconv_fallback_int_utf8($charval);
+ }
+ return $newcharstring;
+ }
+
+ // UTF-16BE => ISO-8859-1
+ public static function iconv_fallback_utf16be_iso88591($string) {
+ if (substr($string, 0, 2) == "\xFE\xFF") {
+ // strip BOM
+ $string = substr($string, 2);
+ }
+ $newcharstring = '';
+ for ($i = 0; $i < strlen($string); $i += 2) {
+ $charval = self::BigEndian2Int(substr($string, $i, 2));
+ $newcharstring .= (($charval < 256) ? chr($charval) : '?');
+ }
+ return $newcharstring;
+ }
+
+ // UTF-16LE => ISO-8859-1
+ public static function iconv_fallback_utf16le_iso88591($string) {
+ if (substr($string, 0, 2) == "\xFF\xFE") {
+ // strip BOM
+ $string = substr($string, 2);
+ }
+ $newcharstring = '';
+ for ($i = 0; $i < strlen($string); $i += 2) {
+ $charval = self::LittleEndian2Int(substr($string, $i, 2));
+ $newcharstring .= (($charval < 256) ? chr($charval) : '?');
+ }
+ return $newcharstring;
+ }
+
+ // UTF-16 (BOM) => ISO-8859-1
+ public static function iconv_fallback_utf16_iso88591($string) {
+ $bom = substr($string, 0, 2);
+ if ($bom == "\xFE\xFF") {
+ return self::iconv_fallback_utf16be_iso88591(substr($string, 2));
+ } elseif ($bom == "\xFF\xFE") {
+ return self::iconv_fallback_utf16le_iso88591(substr($string, 2));
+ }
+ return $string;
+ }
+
+ // UTF-16 (BOM) => UTF-8
+ public static function iconv_fallback_utf16_utf8($string) {
+ $bom = substr($string, 0, 2);
+ if ($bom == "\xFE\xFF") {
+ return self::iconv_fallback_utf16be_utf8(substr($string, 2));
+ } elseif ($bom == "\xFF\xFE") {
+ return self::iconv_fallback_utf16le_utf8(substr($string, 2));
+ }
+ return $string;
+ }
+
+ public static function iconv_fallback($in_charset, $out_charset, $string) {
+
+ if ($in_charset == $out_charset) {
+ return $string;
+ }
+
+ // iconv() availble
+ if (function_exists('iconv')) {
+ if ($converted_string = @iconv($in_charset, $out_charset.'//TRANSLIT', $string)) {
+ switch ($out_charset) {
+ case 'ISO-8859-1':
+ $converted_string = rtrim($converted_string, "\x00");
+ break;
+ }
+ return $converted_string;
+ }
+
+ // iconv() may sometimes fail with "illegal character in input string" error message
+ // and return an empty string, but returning the unconverted string is more useful
+ return $string;
+ }
+
+
+ // iconv() not available
+ static $ConversionFunctionList = array();
+ if (empty($ConversionFunctionList)) {
+ $ConversionFunctionList['ISO-8859-1']['UTF-8'] = 'iconv_fallback_iso88591_utf8';
+ $ConversionFunctionList['ISO-8859-1']['UTF-16'] = 'iconv_fallback_iso88591_utf16';
+ $ConversionFunctionList['ISO-8859-1']['UTF-16BE'] = 'iconv_fallback_iso88591_utf16be';
+ $ConversionFunctionList['ISO-8859-1']['UTF-16LE'] = 'iconv_fallback_iso88591_utf16le';
+ $ConversionFunctionList['UTF-8']['ISO-8859-1'] = 'iconv_fallback_utf8_iso88591';
+ $ConversionFunctionList['UTF-8']['UTF-16'] = 'iconv_fallback_utf8_utf16';
+ $ConversionFunctionList['UTF-8']['UTF-16BE'] = 'iconv_fallback_utf8_utf16be';
+ $ConversionFunctionList['UTF-8']['UTF-16LE'] = 'iconv_fallback_utf8_utf16le';
+ $ConversionFunctionList['UTF-16']['ISO-8859-1'] = 'iconv_fallback_utf16_iso88591';
+ $ConversionFunctionList['UTF-16']['UTF-8'] = 'iconv_fallback_utf16_utf8';
+ $ConversionFunctionList['UTF-16LE']['ISO-8859-1'] = 'iconv_fallback_utf16le_iso88591';
+ $ConversionFunctionList['UTF-16LE']['UTF-8'] = 'iconv_fallback_utf16le_utf8';
+ $ConversionFunctionList['UTF-16BE']['ISO-8859-1'] = 'iconv_fallback_utf16be_iso88591';
+ $ConversionFunctionList['UTF-16BE']['UTF-8'] = 'iconv_fallback_utf16be_utf8';
+ }
+ if (isset($ConversionFunctionList[strtoupper($in_charset)][strtoupper($out_charset)])) {
+ $ConversionFunction = $ConversionFunctionList[strtoupper($in_charset)][strtoupper($out_charset)];
+ return self::$ConversionFunction($string);
+ }
+ throw new Exception('PHP does not have iconv() support - cannot convert from '.$in_charset.' to '.$out_charset);
+ }
+
+
+ public static function MultiByteCharString2HTML($string, $charset='ISO-8859-1') {
+ $string = (string) $string; // in case trying to pass a numeric (float, int) string, would otherwise return an empty string
+ $HTMLstring = '';
+
+ switch ($charset) {
+ case '1251':
+ case '1252':
+ case '866':
+ case '932':
+ case '936':
+ case '950':
+ case 'BIG5':
+ case 'BIG5-HKSCS':
+ case 'cp1251':
+ case 'cp1252':
+ case 'cp866':
+ case 'EUC-JP':
+ case 'EUCJP':
+ case 'GB2312':
+ case 'ibm866':
+ case 'ISO-8859-1':
+ case 'ISO-8859-15':
+ case 'ISO8859-1':
+ case 'ISO8859-15':
+ case 'KOI8-R':
+ case 'koi8-ru':
+ case 'koi8r':
+ case 'Shift_JIS':
+ case 'SJIS':
+ case 'win-1251':
+ case 'Windows-1251':
+ case 'Windows-1252':
+ $HTMLstring = htmlentities($string, ENT_COMPAT, $charset);
+ break;
+
+ case 'UTF-8':
+ $strlen = strlen($string);
+ for ($i = 0; $i < $strlen; $i++) {
+ $char_ord_val = ord($string{$i});
+ $charval = 0;
+ if ($char_ord_val < 0x80) {
+ $charval = $char_ord_val;
+ } elseif ((($char_ord_val & 0xF0) >> 4) == 0x0F && $i+3 < $strlen) {
+ $charval = (($char_ord_val & 0x07) << 18);
+ $charval += ((ord($string{++$i}) & 0x3F) << 12);
+ $charval += ((ord($string{++$i}) & 0x3F) << 6);
+ $charval += (ord($string{++$i}) & 0x3F);
+ } elseif ((($char_ord_val & 0xE0) >> 5) == 0x07 && $i+2 < $strlen) {
+ $charval = (($char_ord_val & 0x0F) << 12);
+ $charval += ((ord($string{++$i}) & 0x3F) << 6);
+ $charval += (ord($string{++$i}) & 0x3F);
+ } elseif ((($char_ord_val & 0xC0) >> 6) == 0x03 && $i+1 < $strlen) {
+ $charval = (($char_ord_val & 0x1F) << 6);
+ $charval += (ord($string{++$i}) & 0x3F);
+ }
+ if (($charval >= 32) && ($charval <= 127)) {
+ $HTMLstring .= htmlentities(chr($charval));
+ } else {
+ $HTMLstring .= '&#'.$charval.';';
+ }
+ }
+ break;
+
+ case 'UTF-16LE':
+ for ($i = 0; $i < strlen($string); $i += 2) {
+ $charval = self::LittleEndian2Int(substr($string, $i, 2));
+ if (($charval >= 32) && ($charval <= 127)) {
+ $HTMLstring .= chr($charval);
+ } else {
+ $HTMLstring .= '&#'.$charval.';';
+ }
+ }
+ break;
+
+ case 'UTF-16BE':
+ for ($i = 0; $i < strlen($string); $i += 2) {
+ $charval = self::BigEndian2Int(substr($string, $i, 2));
+ if (($charval >= 32) && ($charval <= 127)) {
+ $HTMLstring .= chr($charval);
+ } else {
+ $HTMLstring .= '&#'.$charval.';';
+ }
+ }
+ break;
+
+ default:
+ $HTMLstring = 'ERROR: Character set "'.$charset.'" not supported in MultiByteCharString2HTML()';
+ break;
+ }
+ return $HTMLstring;
+ }
+
+
+
+ public static function RGADnameLookup($namecode) {
+ static $RGADname = array();
+ if (empty($RGADname)) {
+ $RGADname[0] = 'not set';
+ $RGADname[1] = 'Track Gain Adjustment';
+ $RGADname[2] = 'Album Gain Adjustment';
+ }
+
+ return (isset($RGADname[$namecode]) ? $RGADname[$namecode] : '');
+ }
+
+
+ public static function RGADoriginatorLookup($originatorcode) {
+ static $RGADoriginator = array();
+ if (empty($RGADoriginator)) {
+ $RGADoriginator[0] = 'unspecified';
+ $RGADoriginator[1] = 'pre-set by artist/producer/mastering engineer';
+ $RGADoriginator[2] = 'set by user';
+ $RGADoriginator[3] = 'determined automatically';
+ }
+
+ return (isset($RGADoriginator[$originatorcode]) ? $RGADoriginator[$originatorcode] : '');
+ }
+
+
+ public static function RGADadjustmentLookup($rawadjustment, $signbit) {
+ $adjustment = $rawadjustment / 10;
+ if ($signbit == 1) {
+ $adjustment *= -1;
+ }
+ return (float) $adjustment;
+ }
+
+
+ public static function RGADgainString($namecode, $originatorcode, $replaygain) {
+ if ($replaygain < 0) {
+ $signbit = '1';
+ } else {
+ $signbit = '0';
+ }
+ $storedreplaygain = intval(round($replaygain * 10));
+ $gainstring = str_pad(decbin($namecode), 3, '0', STR_PAD_LEFT);
+ $gainstring .= str_pad(decbin($originatorcode), 3, '0', STR_PAD_LEFT);
+ $gainstring .= $signbit;
+ $gainstring .= str_pad(decbin($storedreplaygain), 9, '0', STR_PAD_LEFT);
+
+ return $gainstring;
+ }
+
+ public static function RGADamplitude2dB($amplitude) {
+ return 20 * log10($amplitude);
+ }
+
+
+ public static function GetDataImageSize($imgData, &$imageinfo=array()) {
+ static $tempdir = '';
+ if (empty($tempdir)) {
+ // yes this is ugly, feel free to suggest a better way
+ require_once(dirname(__FILE__).'/getid3.php');
+ $getid3_temp = new getID3();
+ $tempdir = $getid3_temp->tempdir;
+ unset($getid3_temp);
+ }
+ $GetDataImageSize = false;
+ if ($tempfilename = tempnam($tempdir, 'gI3')) {
+ if (is_writable($tempfilename) && is_file($tempfilename) && ($tmp = fopen($tempfilename, 'wb'))) {
+ fwrite($tmp, $imgData);
+ fclose($tmp);
+ $GetDataImageSize = @getimagesize($tempfilename, $imageinfo);
+ }
+ unlink($tempfilename);
+ }
+ return $GetDataImageSize;
+ }
+
+ public static function ImageExtFromMime($mime_type) {
+ // temporary way, works OK for now, but should be reworked in the future
+ return str_replace(array('image/', 'x-', 'jpeg'), array('', '', 'jpg'), $mime_type);
+ }
+
+ public static function ImageTypesLookup($imagetypeid) {
+ static $ImageTypesLookup = array();
+ if (empty($ImageTypesLookup)) {
+ $ImageTypesLookup[1] = 'gif';
+ $ImageTypesLookup[2] = 'jpeg';
+ $ImageTypesLookup[3] = 'png';
+ $ImageTypesLookup[4] = 'swf';
+ $ImageTypesLookup[5] = 'psd';
+ $ImageTypesLookup[6] = 'bmp';
+ $ImageTypesLookup[7] = 'tiff (little-endian)';
+ $ImageTypesLookup[8] = 'tiff (big-endian)';
+ $ImageTypesLookup[9] = 'jpc';
+ $ImageTypesLookup[10] = 'jp2';
+ $ImageTypesLookup[11] = 'jpx';
+ $ImageTypesLookup[12] = 'jb2';
+ $ImageTypesLookup[13] = 'swc';
+ $ImageTypesLookup[14] = 'iff';
+ }
+ return (isset($ImageTypesLookup[$imagetypeid]) ? $ImageTypesLookup[$imagetypeid] : '');
+ }
+
+ public static function CopyTagsToComments(&$ThisFileInfo) {
+
+ // Copy all entries from ['tags'] into common ['comments']
+ if (!empty($ThisFileInfo['tags'])) {
+ foreach ($ThisFileInfo['tags'] as $tagtype => $tagarray) {
+ foreach ($tagarray as $tagname => $tagdata) {
+ foreach ($tagdata as $key => $value) {
+ if (!empty($value)) {
+ if (empty($ThisFileInfo['comments'][$tagname])) {
+
+ // fall through and append value
+
+ } elseif ($tagtype == 'id3v1') {
+
+ $newvaluelength = strlen(trim($value));
+ foreach ($ThisFileInfo['comments'][$tagname] as $existingkey => $existingvalue) {
+ $oldvaluelength = strlen(trim($existingvalue));
+ if (($newvaluelength <= $oldvaluelength) && (substr($existingvalue, 0, $newvaluelength) == trim($value))) {
+ // new value is identical but shorter-than (or equal-length to) one already in comments - skip
+ break 2;
+ }
+ }
+
+ } elseif (!is_array($value)) {
+
+ $newvaluelength = strlen(trim($value));
+ foreach ($ThisFileInfo['comments'][$tagname] as $existingkey => $existingvalue) {
+ $oldvaluelength = strlen(trim($existingvalue));
+ if (($newvaluelength > $oldvaluelength) && (substr(trim($value), 0, strlen($existingvalue)) == $existingvalue)) {
+ $ThisFileInfo['comments'][$tagname][$existingkey] = trim($value);
+ break 2;
+ }
+ }
+
+ }
+ if (is_array($value) || empty($ThisFileInfo['comments'][$tagname]) || !in_array(trim($value), $ThisFileInfo['comments'][$tagname])) {
+ $value = (is_string($value) ? trim($value) : $value);
+ $ThisFileInfo['comments'][$tagname][] = $value;
+ }
+ }
+ }
+ }
+ }
+
+ // Copy to ['comments_html']
+ foreach ($ThisFileInfo['comments'] as $field => $values) {
+ if ($field == 'picture') {
+ // pictures can take up a lot of space, and we don't need multiple copies of them
+ // let there be a single copy in [comments][picture], and not elsewhere
+ continue;
+ }
+ foreach ($values as $index => $value) {
+ if (is_array($value)) {
+ $ThisFileInfo['comments_html'][$field][$index] = $value;
+ } else {
+ $ThisFileInfo['comments_html'][$field][$index] = str_replace('�', '', self::MultiByteCharString2HTML($value, $ThisFileInfo['encoding']));
+ }
+ }
+ }
+ }
+ return true;
+ }
+
+
+ public static function EmbeddedLookup($key, $begin, $end, $file, $name) {
+
+ // Cached
+ static $cache;
+ if (isset($cache[$file][$name])) {
+ return (isset($cache[$file][$name][$key]) ? $cache[$file][$name][$key] : '');
+ }
+
+ // Init
+ $keylength = strlen($key);
+ $line_count = $end - $begin - 7;
+
+ // Open php file
+ $fp = fopen($file, 'r');
+
+ // Discard $begin lines
+ for ($i = 0; $i < ($begin + 3); $i++) {
+ fgets($fp, 1024);
+ }
+
+ // Loop thru line
+ while (0 < $line_count--) {
+
+ // Read line
+ $line = ltrim(fgets($fp, 1024), "\t ");
+
+ // METHOD A: only cache the matching key - less memory but slower on next lookup of not-previously-looked-up key
+ //$keycheck = substr($line, 0, $keylength);
+ //if ($key == $keycheck) {
+ // $cache[$file][$name][$keycheck] = substr($line, $keylength + 1);
+ // break;
+ //}
+
+ // METHOD B: cache all keys in this lookup - more memory but faster on next lookup of not-previously-looked-up key
+ //$cache[$file][$name][substr($line, 0, $keylength)] = trim(substr($line, $keylength + 1));
+ $explodedLine = explode("\t", $line, 2);
+ $ThisKey = (isset($explodedLine[0]) ? $explodedLine[0] : '');
+ $ThisValue = (isset($explodedLine[1]) ? $explodedLine[1] : '');
+ $cache[$file][$name][$ThisKey] = trim($ThisValue);
+ }
+
+ // Close and return
+ fclose($fp);
+ return (isset($cache[$file][$name][$key]) ? $cache[$file][$name][$key] : '');
+ }
+
+ public static function IncludeDependency($filename, $sourcefile, $DieOnFailure=false) {
+ global $GETID3_ERRORARRAY;
+
+ if (file_exists($filename)) {
+ if (include_once($filename)) {
+ return true;
+ } else {
+ $diemessage = basename($sourcefile).' depends on '.$filename.', which has errors';
+ }
+ } else {
+ $diemessage = basename($sourcefile).' depends on '.$filename.', which is missing';
+ }
+ if ($DieOnFailure) {
+ throw new Exception($diemessage);
+ } else {
+ $GETID3_ERRORARRAY[] = $diemessage;
+ }
+ return false;
+ }
+
+ public static function trimNullByte($string) {
+ return trim($string, "\x00");
+ }
+
+ public static function getFileSizeSyscall($path) {
+ $filesize = false;
+
+ if (GETID3_OS_ISWINDOWS) {
+ if (class_exists('COM')) { // From PHP 5.3.15 and 5.4.5, COM and DOTNET is no longer built into the php core.you have to add COM support in php.ini:
+ $filesystem = new COM('Scripting.FileSystemObject');
+ $file = $filesystem->GetFile($path);
+ $filesize = $file->Size();
+ unset($filesystem, $file);
+ } else {
+ $commandline = 'for %I in ('.escapeshellarg($path).') do @echo %~zI';
+ }
+ } else {
+ $commandline = 'ls -l '.escapeshellarg($path).' | awk \'{print $5}\'';
+ }
+ if (isset($commandline)) {
+ $output = trim(`$commandline`);
+ if (ctype_digit($output)) {
+ $filesize = (float) $output;
+ }
+ }
+ return $filesize;
+ }
+}
\ No newline at end of file