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- <?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
- {
- function PrintHexBytes($string, $hex=true, $spaces=true, $htmlsafe=true) {
- $returnstring = '';
- for ($i = 0; $i < strlen($string); $i++) {
- if ($hex) {
- $returnstring .= str_pad(dechex(ord($string{$i})), 2, '0', STR_PAD_LEFT);
- } else {
- $returnstring .= ' '.(ereg("[\x20-\x7E]", $string{$i}) ? $string{$i} : '¤');
- }
- if ($spaces) {
- $returnstring .= ' ';
- }
- }
- if ($htmlsafe) {
- $returnstring = htmlentities($returnstring);
- }
- return $returnstring;
- }
- function SafeStripSlashes($text) {
- if (get_magic_quotes_gpc()) {
- return stripslashes($text);
- }
- return $text;
- }
- function trunc($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 {
- $truncatednumber = 0;
- }
- if ($truncatednumber <= 1073741824) { // 2^30
- $truncatednumber = (int) $truncatednumber;
- }
- return $truncatednumber;
- }
- function CastAsInt($floatnum) {
- // convert to float if not already
- $floatnum = (float) $floatnum;
- // convert a float to type int, only if possible
- if (getid3_lib::trunc($floatnum) == $floatnum) {
- // it's not floating point
- if ($floatnum <= 2147483647) { // 2^31
- // it's within int range
- $floatnum = (int) $floatnum;
- }
- }
- return $floatnum;
- }
- function DecimalBinary2Float($binarynumerator) {
- $numerator = getid3_lib::Bin2Dec($binarynumerator);
- $denominator = getid3_lib::Bin2Dec('1'.str_repeat('0', strlen($binarynumerator)));
- return ($numerator / $denominator);
- }
- function NormalizeBinaryPoint($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) $exponent);
- }
- function Float2BinaryDecimal($floatvalue) {
- // http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html
- $maxbits = 128; // to how many bits of precision should the calculations be taken?
- $intpart = getid3_lib::trunc($floatvalue);
- $floatpart = abs($floatvalue - $intpart);
- $pointbitstring = '';
- while (($floatpart != 0) && (strlen($pointbitstring) < $maxbits)) {
- $floatpart *= 2;
- $pointbitstring .= (string) getid3_lib::trunc($floatpart);
- $floatpart -= getid3_lib::trunc($floatpart);
- }
- $binarypointnumber = decbin($intpart).'.'.$pointbitstring;
- return $binarypointnumber;
- }
- function Float2String($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';
- }
- $normalizedbinary = getid3_lib::NormalizeBinaryPoint(getid3_lib::Float2BinaryDecimal($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), $fractionbits, '0', STR_PAD_RIGHT);
- return getid3_lib::BigEndian2String(getid3_lib::Bin2Dec($signbit.$exponentbitstring.$fractionbitstring), $bits % 8, false);
- }
- function LittleEndian2Float($byteword) {
- return getid3_lib::BigEndian2Float(strrev($byteword));
- }
- function BigEndian2Float($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
- $bitword = getid3_lib::BigEndian2Bin($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);
- $exponent = pow(2, getid3_lib::Bin2Dec($exponentstring) - 16383);
- $fraction = $isnormalized + getid3_lib::DecimalBinary2Float($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);
- $exponent = getid3_lib::Bin2Dec($exponentstring);
- $fraction = getid3_lib::Bin2Dec($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, $exponentbits - 1) - 2))) * getid3_lib::DecimalBinary2Float($fractionstring);
- if ($signbit == '1') {
- $floatvalue *= -1;
- }
- } elseif ($exponent != 0) {
- $floatvalue = pow(2, ($exponent - (pow(2, $exponentbits - 1) - 1))) * (1 + getid3_lib::DecimalBinary2Float($fractionstring));
- if ($signbit == '1') {
- $floatvalue *= -1;
- }
- }
- return (float) $floatvalue;
- }
- function BigEndian2Int($byteword, $synchsafe=false, $signed=false) {
- $intvalue = 0;
- $bytewordlen = strlen($byteword);
- for ($i = 0; $i < $bytewordlen; $i++) {
- if ($synchsafe) { // disregard MSB, effectively 7-bit bytes
- $intvalue = $intvalue | (ord($byteword{$i}) & 0x7F) << (($bytewordlen - 1 - $i) * 7);
- } else {
- $intvalue += ord($byteword{$i}) * pow(256, ($bytewordlen - 1 - $i));
- }
- }
- if ($signed && !$synchsafe) {
- // synchsafe ints are not allowed to be signed
- switch ($bytewordlen) {
- case 1:
- case 2:
- case 3:
- case 4:
- $signmaskbit = 0x80 << (8 * ($bytewordlen - 1));
- if ($intvalue & $signmaskbit) {
- $intvalue = 0 - ($intvalue & ($signmaskbit - 1));
- }
- break;
- default:
- die('ERROR: Cannot have signed integers larger than 32-bits in getid3_lib::BigEndian2Int()');
- break;
- }
- }
- return getid3_lib::CastAsInt($intvalue);
- }
- function LittleEndian2Int($byteword, $signed=false) {
- return getid3_lib::BigEndian2Int(strrev($byteword), false, $signed);
- }
- function BigEndian2Bin($byteword) {
- $binvalue = '';
- $bytewordlen = strlen($byteword);
- for ($i = 0; $i < $bytewordlen; $i++) {
- $binvalue .= str_pad(decbin(ord($byteword{$i})), 8, '0', STR_PAD_LEFT);
- }
- return $binvalue;
- }
- function BigEndian2String($number, $minbytes=1, $synchsafe=false, $signed=false) {
- if ($number < 0) {
- return false;
- }
- $maskbyte = (($synchsafe || $signed) ? 0x7F : 0xFF);
- $intstring = '';
- if ($signed) {
- if ($minbytes > 4) {
- die('ERROR: Cannot have signed integers larger than 32-bits in getid3_lib::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, $minbytes, "\x00", STR_PAD_LEFT);
- }
- function Dec2Bin($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 $binstring;
- }
- function Bin2Dec($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, $i);
- }
- return getid3_lib::CastAsInt($decvalue * $signmult);
- }
- function Bin2String($binstring) {
- // return 'hi' for input of '0110100001101001'
- $string = '';
- $binstringreversed = strrev($binstring);
- for ($i = 0; $i < strlen($binstringreversed); $i += 8) {
- $string = chr(getid3_lib::Bin2Dec(strrev(substr($binstringreversed, $i, 8)))).$string;
- }
- return $string;
- }
- function LittleEndian2String($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, $minbytes, "\x00", STR_PAD_RIGHT);
- }
- function array_merge_clobber($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] = getid3_lib::array_merge_clobber($newarray[$key], $val);
- } else {
- $newarray[$key] = $val;
- }
- }
- return $newarray;
- }
- function array_merge_noclobber($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] = getid3_lib::array_merge_noclobber($newarray[$key], $val);
- } elseif (!isset($newarray[$key])) {
- $newarray[$key] = $val;
- }
- }
- return $newarray;
- }
- function fileextension($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, $offset));
- }
- return '';
- }
- function PlaytimeString($playtimeseconds) {
- $sign = (($playtimeseconds < 0) ? '-' : '');
- $playtimeseconds = abs($playtimeseconds);
- $contentseconds = round((($playtimeseconds / 60) - floor($playtimeseconds / 60)) * 60);
- $contentminutes = floor($playtimeseconds / 60);
- if ($contentseconds >= 60) {
- $contentseconds -= 60;
- $contentminutes++;
- }
- return $sign.intval($contentminutes).':'.str_pad($contentseconds, 2, 0, STR_PAD_LEFT);
- }
- function image_type_to_mime_type($imagetypeid) {
- // only available in PHP v4.3.0+
- static $image_type_to_mime_type = array();
- if (empty($image_type_to_mime_type)) {
- $image_type_to_mime_type[1] = 'image/gif'; // GIF
- $image_type_to_mime_type[2] = 'image/jpeg'; // JPEG
- $image_type_to_mime_type[3] = 'image/png'; // PNG
- $image_type_to_mime_type[4] = 'application/x-shockwave-flash'; // Flash
- $image_type_to_mime_type[5] = 'image/psd'; // PSD
- $image_type_to_mime_type[6] = 'image/bmp'; // BMP
- $image_type_to_mime_type[7] = 'image/tiff'; // TIFF: little-endian (Intel)
- $image_type_to_mime_type[8] = 'image/tiff'; // TIFF: big-endian (Motorola)
- //$image_type_to_mime_type[9] = 'image/jpc'; // JPC
- //$image_type_to_mime_type[10] = 'image/jp2'; // JPC
- //$image_type_to_mime_type[11] = 'image/jpx'; // JPC
- //$image_type_to_mime_type[12] = 'image/jb2'; // JPC
- $image_type_to_mime_type[13] = 'application/x-shockwave-flash'; // Shockwave
- $image_type_to_mime_type[14] = 'image/iff'; // IFF
- }
- return (isset($image_type_to_mime_type[$imagetypeid]) ? $image_type_to_mime_type[$imagetypeid] : 'application/octet-stream');
- }
- function DateMac2Unix($macdate) {
- // Macintosh timestamp: seconds since 00:00h January 1, 1904
- // UNIX timestamp: seconds since 00:00h January 1, 1970
- return getid3_lib::CastAsInt($macdate - 2082844800);
- }
- function FixedPoint8_8($rawdata) {
- return getid3_lib::BigEndian2Int(substr($rawdata, 0, 1)) + (float) (getid3_lib::BigEndian2Int(substr($rawdata, 1, 1)) / pow(2, 8));
- }
- function FixedPoint16_16($rawdata) {
- return getid3_lib::BigEndian2Int(substr($rawdata, 0, 2)) + (float) (getid3_lib::BigEndian2Int(substr($rawdata, 2, 2)) / pow(2, 16));
- }
- function FixedPoint2_30($rawdata) {
- $binarystring = getid3_lib::BigEndian2Bin($rawdata);
- return getid3_lib::Bin2Dec(substr($binarystring, 0, 2)) + (float) (getid3_lib::Bin2Dec(substr($binarystring, 2, 30)) / 1073741824);
- }
- function CreateDeepArray($ArrayPath, $Separator, $Value) {
- // assigns $Value to a nested array path:
- // $foo = getid3_lib::CreateDeepArray('/path/to/my', '/', 'file.txt')
- // is the same as:
- // $foo = array('path'=>array('to'=>'array('my'=>array('file.txt'))));
- // or
- // $foo['path']['to']['my'] = 'file.txt';
- while ($ArrayPath && ($ArrayPath{0} == $Separator)) {
- $ArrayPath = substr($ArrayPath, 1);
- }
- if (($pos = strpos($ArrayPath, $Separator)) !== false) {
- $ReturnedArray[substr($ArrayPath, 0, $pos)] = getid3_lib::CreateDeepArray(substr($ArrayPath, $pos + 1), $Separator, $Value);
- } else {
- $ReturnedArray[$ArrayPath] = $Value;
- }
- return $ReturnedArray;
- }
- function array_max($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 : $maxvalue);
- }
- function array_min($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 : $minvalue);
- }
- function md5_file($file) {
- // md5_file() exists in PHP 4.2.0+.
- if (function_exists('md5_file')) {
- return md5_file($file);
- }
- if (GETID3_OS_ISWINDOWS) {
- $RequiredFiles = array('cygwin1.dll', 'md5sum.exe');
- foreach ($RequiredFiles as $required_file) {
- if (!is_readable(GETID3_HELPERAPPSDIR.$required_file)) {
- die(implode(' and ', $RequiredFiles).' are required in '.GETID3_HELPERAPPSDIR.' for getid3_lib::md5_file() to function under Windows in PHP < v4.2.0');
- }
- }
- $commandline = GETID3_HELPERAPPSDIR.'md5sum.exe "'.str_replace('/', DIRECTORY_SEPARATOR, $file).'"';
- if (ereg("^[\\]?([0-9a-f]{32})", strtolower(`$commandline`), $r)) {
- return $r[1];
- }
- } else {
- // The following works under UNIX only
- $file = str_replace('`', '\\`', $file);
- if (ereg("^([0-9a-f]{32})[ \t\n\r]", `md5sum "$file"`, $r)) {
- return $r[1];
- }
- }
- return false;
- }
- function sha1_file($file) {
- // sha1_file() exists in PHP 4.3.0+.
- if (function_exists('sha1_file')) {
- return sha1_file($file);
- }
- $file = str_replace('`', '\\`', $file);
- if (GETID3_OS_ISWINDOWS) {
- $RequiredFiles = array('cygwin1.dll', 'sha1sum.exe');
- foreach ($RequiredFiles as $required_file) {
- if (!is_readable(GETID3_HELPERAPPSDIR.$required_file)) {
- die(implode(' and ', $RequiredFiles).' are required in '.GETID3_HELPERAPPSDIR.' for getid3_lib::sha1_file() to function under Windows in PHP < v4.3.0');
- }
- }
- $commandline = GETID3_HELPERAPPSDIR.'sha1sum.exe "'.str_replace('/', DIRECTORY_SEPARATOR, $file).'"';
- if (ereg("^sha1=([0-9a-f]{40})", strtolower(`$commandline`), $r)) {
- return $r[1];
- }
- } else {
- $commandline = 'sha1sum '.escapeshellarg($file).'';
- if (ereg("^([0-9a-f]{40})[ \t\n\r]", strtolower(`$commandline`), $r)) {
- return $r[1];
- }
- }
- return false;
- }
- // Allan Hansen <ahØartemis*dk>
- // getid3_lib::md5_data() - returns md5sum for a file from startuing position to absolute end position
- function hash_data($file, $offset, $end, $algorithm) {
- if ($end >= pow(2, 31)) {
- 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';
- $hash_length = 40;
- break;
- default:
- die('Invalid algorithm ('.$algorithm.') in getid3_lib::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;
- }
- }
- $commandline = GETID3_HELPERAPPSDIR.'head.exe -c '.$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 ((bool) ini_get('safe_mode')) {
- $ThisFileInfo['warning'][] = 'PHP running in Safe Mode - backtick operator not available, using slower non-system-call '.$algorithm.' algorithm';
- break;
- }
- return substr(`$commandline`, 0, $hash_length);
- }
- // try to create a temporary file in the system temp directory - invalid dirname should force to system temp dir
- if (($data_filename = tempnam('*', 'getID3')) === false) {
- // can't find anywhere to create a temp file, just die
- return false;
- }
- // Init
- $result = false;
- // copy parts of file
- if ($fp = @fopen($file, 'rb')) {
- if ($fp_data = @fopen($data_filename, 'wb')) {
- fseek($fp, $offset, SEEK_SET);
- $byteslefttowrite = $end - $offset;
- while (($byteslefttowrite > 0) && ($buffer = fread($fp, GETID3_FREAD_BUFFER_SIZE))) {
- $byteswritten = fwrite($fp_data, $buffer, $byteslefttowrite);
- $byteslefttowrite -= $byteswritten;
- }
- fclose($fp_data);
- $result = getid3_lib::$hash_function($data_filename);
- }
- fclose($fp);
- }
- unlink($data_filename);
- return $result;
- }
- function iconv_fallback_int_utf8($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 $newcharstring;
- }
- // ISO-8859-1 => UTF-8
- function iconv_fallback_iso88591_utf8($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});
- $newcharstring .= getid3_lib::iconv_fallback_int_utf8($charval);
- }
- return $newcharstring;
- }
- // ISO-8859-1 => UTF-16BE
- function iconv_fallback_iso88591_utf16be($string, $bom=false) {
- $newcharstring = '';
- if ($bom) {
- $newcharstring .= "\xFE\xFF";
- }
- for ($i = 0; $i < strlen($string); $i++) {
- $newcharstring .= "\x00".$string{$i};
- }
- return $newcharstring;
- }
- // ISO-8859-1 => UTF-16LE
- function iconv_fallback_iso88591_utf16le($string, $bom=false) {
- $newcharstring = '';
- if ($bom) {
- $newcharstring .= "\xFF\xFE";
- }
- for ($i = 0; $i < strlen($string); $i++) {
- $newcharstring .= $string{$i}."\x00";
- }
- return $newcharstring;
- }
- // ISO-8859-1 => UTF-16LE (BOM)
- function iconv_fallback_iso88591_utf16($string) {
- return getid3_lib::iconv_fallback_iso88591_utf16le($string, true);
- }
- // UTF-8 => ISO-8859-1
- function iconv_fallback_utf8_iso88591($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 $newcharstring;
- }
- // UTF-8 => UTF-16BE
- function iconv_fallback_utf8_utf16be($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) ? getid3_lib::BigEndian2String($charval, 2) : "\x00".'?');
- }
- }
- return $newcharstring;
- }
- // UTF-8 => UTF-16LE
- function iconv_fallback_utf8_utf16le($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) ? getid3_lib::LittleEndian2String($charval, 2) : '?'."\x00");
- }
- }
- return $newcharstring;
- }
- // UTF-8 => UTF-16LE (BOM)
- function iconv_fallback_utf8_utf16($string) {
- return getid3_lib::iconv_fallback_utf8_utf16le($string, true);
- }
- // UTF-16BE => UTF-8
- function iconv_fallback_utf16be_utf8($string) {
- if (substr($string, 0, 2) == "\xFE\xFF") {
- // strip BOM
- $string = substr($string, 2);
- }
- $newcharstring = '';
- for ($i = 0; $i < strlen($string); $i += 2) {
- $charval = getid3_lib::BigEndian2Int(substr($string, $i, 2));
- $newcharstring .= getid3_lib::iconv_fallback_int_utf8($charval);
- }
- return $newcharstring;
- }
- // UTF-16LE => UTF-8
- function iconv_fallback_utf16le_utf8($string) {
- if (substr($string, 0, 2) == "\xFF\xFE") {
- // strip BOM
- $string = substr($string, 2);
- }
- $newcharstring = '';
- for ($i = 0; $i < strlen($string); $i += 2) {
- $charval = getid3_lib::LittleEndian2Int(substr($string, $i, 2));
- $newcharstring .= getid3_lib::iconv_fallback_int_utf8($charval);
- }
- return $newcharstring;
- }
- // UTF-16BE => ISO-8859-1
- function iconv_fallback_utf16be_iso88591($string) {
- if (substr($string, 0, 2) == "\xFE\xFF") {
- // strip BOM
- $string = substr($string, 2);
- }
- $newcharstring = '';
- for ($i = 0; $i < strlen($string); $i += 2) {
- $charval = getid3_lib::BigEndian2Int(substr($string, $i, 2));
- $newcharstring .= (($charval < 256) ? chr($charval) : '?');
- }
- return $newcharstring;
- }
- // UTF-16LE => ISO-8859-1
- function iconv_fallback_utf16le_iso88591($string) {
- if (substr($string, 0, 2) == "\xFF\xFE") {
- // strip BOM
- $string = substr($string, 2);
- }
- $newcharstring = '';
- for ($i = 0; $i < strlen($string); $i += 2) {
- $charval = getid3_lib::LittleEndian2Int(substr($string, $i, 2));
- $newcharstring .= (($charval < 256) ? chr($charval) : '?');
- }
- return $newcharstring;
- }
- // UTF-16 (BOM) => ISO-8859-1
- function iconv_fallback_utf16_iso88591($string) {
- $bom = substr($string, 0, 2);
- if ($bom == "\xFE\xFF") {
- return getid3_lib::iconv_fallback_utf16be_iso88591(substr($string, 2));
- } elseif ($bom == "\xFF\xFE") {
- return getid3_lib::iconv_fallback_utf16le_iso88591(substr($string, 2));
- }
- return $string;
- }
- // UTF-16 (BOM) => UTF-8
- function iconv_fallback_utf16_utf8($string) {
- $bom = substr($string, 0, 2);
- if ($bom == "\xFE\xFF") {
- return getid3_lib::iconv_fallback_utf16be_utf8(substr($string, 2));
- } elseif ($bom == "\xFF\xFE") {
- return getid3_lib::iconv_fallback_utf16le_utf8(substr($string, 2));
- }
- return $string;
- }
- function iconv_fallback($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($out_charset)];
- return getid3_lib::$ConversionFunction($string);
- }
- die('PHP does not have iconv() support - cannot convert from '.$in_charset.' to '.$out_charset);
- }
- function MultiByteCharString2HTML($string, $charset='ISO-8859-1') {
- $HTMLstring = '';
- switch ($charset) {
- case 'ISO-8859-1':
- case 'ISO8859-1':
- case 'ISO-8859-15':
- case 'ISO8859-15':
- case 'cp866':
- case 'ibm866':
- case '866':
- case 'cp1251':
- case 'Windows-1251':
- case 'win-1251':
- case '1251':
- case 'cp1252':
- case 'Windows-1252':
- case '1252':
- case 'KOI8-R':
- case 'koi8-ru':
- case 'koi8r':
- case 'BIG5':
- case '950':
- case 'GB2312':
- case '936':
- case 'BIG5-HKSCS':
- case 'Shift_JIS':
- case 'SJIS':
- case '932':
- case 'EUC-JP':
- case 'EUCJP':
- $HTMLstring = htmlentities($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) {
- $charval = getid3_lib::LittleEndian2Int(substr($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) {
- $charval = getid3_lib::BigEndian2Int(substr($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 $HTMLstring;
- }
- function RGADnameLookup($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] : '');
- }
- 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] : '');
- }
- function RGADadjustmentLookup($rawadjustment, $signbit) {
- $adjustment = $rawadjustment / 10;
- if ($signbit == 1) {
- $adjustment *= -1;
- }
- return (float) $adjustment;
- }
- function RGADgainString($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 $gainstring;
- }
- function RGADamplitude2dB($amplitude) {
- return 20 * log10($amplitude);
- }
- function GetDataImageSize($imgData, &$imageinfo) {
- $GetDataImageSize = false;
- if ($tempfilename = tempnam('*', 'getID3')) {
- if ($tmp = @fopen($tempfilename, 'wb')) {
- fwrite($tmp, $imgData);
- fclose($tmp);
- $GetDataImageSize = @GetImageSize($tempfilename, $imageinfo);
- }
- unlink($tempfilename);
- }
- return $GetDataImageSize;
- }
- function ImageTypesLookup($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] : '');
- }
- 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;
- }
- }
- } else {
- $newvaluelength = strlen(trim($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 (empty($ThisFileInfo['comments'][$tagname]) || !in_array(trim($value), $ThisFileInfo['comments'][$tagname])) {
- $ThisFileInfo['comments'][$tagname][] = trim($value);
- }
- }
- }
- }
- }
- // Copy to ['comments_html']
- foreach ($ThisFileInfo['comments'] as $field => $values) {
- foreach ($values as $index => $value) {
- $ThisFileInfo['comments_html'][$field][$index] = str_replace('�', '', getid3_lib::MultiByteCharString2HTML($value, $ThisFileInfo['encoding']));
- }
- }
- }
- }
- function EmbeddedLookup($key, $begin, $end, $file, $name) {
- // Cached
- static $cache;
- if (isset($cache[$file][$name])) {
- return @$cache[$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, $keylength + 1));
- @list($ThisKey, $ThisValue) = explode("\t", $line, 2);
- $cache[$file][$name][$ThisKey] = trim($ThisValue);
- }
- // Close and return
- fclose($fp);
- return @$cache[$file][$name][$key];
- }
- 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) {
- die($diemessage);
- } else {
- $GETID3_ERRORARRAY[] = $diemessage;
- }
- return false;
- }
- }
- ?>
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