diff options
Diffstat (limited to 'extensions/TimedMediaHandler/libs/getid3/getid3.lib.php')
| -rw-r--r-- | extensions/TimedMediaHandler/libs/getid3/getid3.lib.php | 1346 |
1 files changed, 1346 insertions, 0 deletions
diff --git a/extensions/TimedMediaHandler/libs/getid3/getid3.lib.php b/extensions/TimedMediaHandler/libs/getid3/getid3.lib.php new file mode 100644 index 00000000..16d5318a --- /dev/null +++ b/extensions/TimedMediaHandler/libs/getid3/getid3.lib.php @@ -0,0 +1,1346 @@ +<?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') + && function_exists('get_object_vars') + && function_exists('libxml_disable_entity_loader') + ) { + $loader = libxml_disable_entity_loader(true); + $XMLobject = simplexml_load_string($XMLstring); + $return = self::SimpleXMLelement2array($XMLobject); + libxml_disable_entity_loader($loader); + return $return; + } + return false; + } + + public static function SimpleXMLelement2array($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; + } + +} |