1323 lines
41 KiB
PHP
1323 lines
41 KiB
PHP
<?php
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/////////////////////////////////////////////////////////////////
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/// getID3() by James Heinrich <info@getid3.org> //
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// available at http://getid3.sourceforge.net //
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// or http://www.getid3.org //
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/////////////////////////////////////////////////////////////////
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// //
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// getid3.lib.php - part of getID3() //
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// See readme.txt for more details //
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// ///
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/////////////////////////////////////////////////////////////////
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class getid3_lib
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{
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function PrintHexBytes($string, $hex=true, $spaces=true, $htmlsafe=true) {
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$returnstring = '';
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for ($i = 0; $i < strlen($string); $i++) {
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if ($hex) {
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$returnstring .= str_pad(dechex(ord($string{$i})), 2, '0', STR_PAD_LEFT);
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} else {
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$returnstring .= ' '.(ereg("[\x20-\x7E]", $string{$i}) ? $string{$i} : '¤');
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}
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if ($spaces) {
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$returnstring .= ' ';
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}
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}
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if ($htmlsafe) {
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$returnstring = htmlentities($returnstring);
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}
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return $returnstring;
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}
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function SafeStripSlashes($text) {
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if (get_magic_quotes_gpc()) {
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return stripslashes($text);
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}
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return $text;
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}
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function trunc($floatnumber) {
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// truncates a floating-point number at the decimal point
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// returns int (if possible, otherwise float)
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if ($floatnumber >= 1) {
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$truncatednumber = floor($floatnumber);
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} elseif ($floatnumber <= -1) {
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$truncatednumber = ceil($floatnumber);
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} else {
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$truncatednumber = 0;
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}
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if ($truncatednumber <= 1073741824) { // 2^30
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$truncatednumber = (int) $truncatednumber;
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}
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return $truncatednumber;
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}
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function CastAsInt($floatnum) {
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// convert to float if not already
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$floatnum = (float) $floatnum;
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// convert a float to type int, only if possible
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if (getid3_lib::trunc($floatnum) == $floatnum) {
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// it's not floating point
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if ($floatnum <= 1073741824) { // 2^30
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// it's within int range
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$floatnum = (int) $floatnum;
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}
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}
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return $floatnum;
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}
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function DecimalBinary2Float($binarynumerator) {
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$numerator = getid3_lib::Bin2Dec($binarynumerator);
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$denominator = getid3_lib::Bin2Dec('1'.str_repeat('0', strlen($binarynumerator)));
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return ($numerator / $denominator);
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}
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function NormalizeBinaryPoint($binarypointnumber, $maxbits=52) {
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// http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html
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if (strpos($binarypointnumber, '.') === false) {
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$binarypointnumber = '0.'.$binarypointnumber;
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} elseif ($binarypointnumber{0} == '.') {
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$binarypointnumber = '0'.$binarypointnumber;
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}
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$exponent = 0;
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while (($binarypointnumber{0} != '1') || (substr($binarypointnumber, 1, 1) != '.')) {
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if (substr($binarypointnumber, 1, 1) == '.') {
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$exponent--;
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$binarypointnumber = substr($binarypointnumber, 2, 1).'.'.substr($binarypointnumber, 3);
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} else {
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$pointpos = strpos($binarypointnumber, '.');
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$exponent += ($pointpos - 1);
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$binarypointnumber = str_replace('.', '', $binarypointnumber);
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$binarypointnumber = $binarypointnumber{0}.'.'.substr($binarypointnumber, 1);
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}
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}
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$binarypointnumber = str_pad(substr($binarypointnumber, 0, $maxbits + 2), $maxbits + 2, '0', STR_PAD_RIGHT);
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return array('normalized'=>$binarypointnumber, 'exponent'=>(int) $exponent);
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}
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function Float2BinaryDecimal($floatvalue) {
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// http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html
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$maxbits = 128; // to how many bits of precision should the calculations be taken?
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$intpart = getid3_lib::trunc($floatvalue);
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$floatpart = abs($floatvalue - $intpart);
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$pointbitstring = '';
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while (($floatpart != 0) && (strlen($pointbitstring) < $maxbits)) {
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$floatpart *= 2;
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$pointbitstring .= (string) getid3_lib::trunc($floatpart);
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$floatpart -= getid3_lib::trunc($floatpart);
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}
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$binarypointnumber = decbin($intpart).'.'.$pointbitstring;
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return $binarypointnumber;
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}
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function Float2String($floatvalue, $bits) {
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// http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee-expl.html
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switch ($bits) {
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case 32:
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$exponentbits = 8;
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$fractionbits = 23;
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break;
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case 64:
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$exponentbits = 11;
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$fractionbits = 52;
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break;
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default:
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return false;
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break;
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}
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if ($floatvalue >= 0) {
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$signbit = '0';
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} else {
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$signbit = '1';
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}
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$normalizedbinary = getid3_lib::NormalizeBinaryPoint(getid3_lib::Float2BinaryDecimal($floatvalue), $fractionbits);
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$biasedexponent = pow(2, $exponentbits - 1) - 1 + $normalizedbinary['exponent']; // (127 or 1023) +/- exponent
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$exponentbitstring = str_pad(decbin($biasedexponent), $exponentbits, '0', STR_PAD_LEFT);
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$fractionbitstring = str_pad(substr($normalizedbinary['normalized'], 2), $fractionbits, '0', STR_PAD_RIGHT);
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return getid3_lib::BigEndian2String(getid3_lib::Bin2Dec($signbit.$exponentbitstring.$fractionbitstring), $bits % 8, false);
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}
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function LittleEndian2Float($byteword) {
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return getid3_lib::BigEndian2Float(strrev($byteword));
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}
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function BigEndian2Float($byteword) {
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// ANSI/IEEE Standard 754-1985, Standard for Binary Floating Point Arithmetic
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// http://www.psc.edu/general/software/packages/ieee/ieee.html
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// http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee.html
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$bitword = getid3_lib::BigEndian2Bin($byteword);
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$signbit = $bitword{0};
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switch (strlen($byteword) * 8) {
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case 32:
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$exponentbits = 8;
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$fractionbits = 23;
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break;
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case 64:
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$exponentbits = 11;
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$fractionbits = 52;
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break;
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case 80:
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// 80-bit Apple SANE format
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// http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/
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$exponentstring = substr($bitword, 1, 15);
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$isnormalized = intval($bitword{16});
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$fractionstring = substr($bitword, 17, 63);
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$exponent = pow(2, getid3_lib::Bin2Dec($exponentstring) - 16383);
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$fraction = $isnormalized + getid3_lib::DecimalBinary2Float($fractionstring);
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$floatvalue = $exponent * $fraction;
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if ($signbit == '1') {
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$floatvalue *= -1;
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}
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return $floatvalue;
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break;
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default:
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return false;
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break;
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}
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$exponentstring = substr($bitword, 1, $exponentbits);
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$fractionstring = substr($bitword, $exponentbits + 1, $fractionbits);
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$exponent = getid3_lib::Bin2Dec($exponentstring);
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$fraction = getid3_lib::Bin2Dec($fractionstring);
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if (($exponent == (pow(2, $exponentbits) - 1)) && ($fraction != 0)) {
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// Not a Number
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$floatvalue = false;
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} elseif (($exponent == (pow(2, $exponentbits) - 1)) && ($fraction == 0)) {
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if ($signbit == '1') {
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$floatvalue = '-infinity';
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} else {
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$floatvalue = '+infinity';
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}
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} elseif (($exponent == 0) && ($fraction == 0)) {
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if ($signbit == '1') {
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$floatvalue = -0;
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} else {
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$floatvalue = 0;
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}
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$floatvalue = ($signbit ? 0 : -0);
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} elseif (($exponent == 0) && ($fraction != 0)) {
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// These are 'unnormalized' values
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$floatvalue = pow(2, (-1 * (pow(2, $exponentbits - 1) - 2))) * getid3_lib::DecimalBinary2Float($fractionstring);
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if ($signbit == '1') {
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$floatvalue *= -1;
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}
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} elseif ($exponent != 0) {
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$floatvalue = pow(2, ($exponent - (pow(2, $exponentbits - 1) - 1))) * (1 + getid3_lib::DecimalBinary2Float($fractionstring));
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if ($signbit == '1') {
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$floatvalue *= -1;
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}
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}
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return (float) $floatvalue;
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}
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function BigEndian2Int($byteword, $synchsafe=false, $signed=false) {
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$intvalue = 0;
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$bytewordlen = strlen($byteword);
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for ($i = 0; $i < $bytewordlen; $i++) {
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if ($synchsafe) { // disregard MSB, effectively 7-bit bytes
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$intvalue = $intvalue | (ord($byteword{$i}) & 0x7F) << (($bytewordlen - 1 - $i) * 7);
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} else {
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$intvalue += ord($byteword{$i}) * pow(256, ($bytewordlen - 1 - $i));
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}
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}
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if ($signed && !$synchsafe) {
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// synchsafe ints are not allowed to be signed
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switch ($bytewordlen) {
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case 1:
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case 2:
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case 3:
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case 4:
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$signmaskbit = 0x80 << (8 * ($bytewordlen - 1));
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if ($intvalue & $signmaskbit) {
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$intvalue = 0 - ($intvalue & ($signmaskbit - 1));
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}
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break;
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default:
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die('ERROR: Cannot have signed integers larger than 32-bits in getid3_lib::BigEndian2Int()');
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break;
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}
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}
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return getid3_lib::CastAsInt($intvalue);
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}
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function LittleEndian2Int($byteword, $signed=false) {
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return getid3_lib::BigEndian2Int(strrev($byteword), false, $signed);
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}
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function BigEndian2Bin($byteword) {
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$binvalue = '';
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$bytewordlen = strlen($byteword);
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for ($i = 0; $i < $bytewordlen; $i++) {
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$binvalue .= str_pad(decbin(ord($byteword{$i})), 8, '0', STR_PAD_LEFT);
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}
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return $binvalue;
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}
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function BigEndian2String($number, $minbytes=1, $synchsafe=false, $signed=false) {
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if ($number < 0) {
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return false;
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}
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$maskbyte = (($synchsafe || $signed) ? 0x7F : 0xFF);
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$intstring = '';
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if ($signed) {
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if ($minbytes > 4) {
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die('ERROR: Cannot have signed integers larger than 32-bits in getid3_lib::BigEndian2String()');
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}
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$number = $number & (0x80 << (8 * ($minbytes - 1)));
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}
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while ($number != 0) {
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$quotient = ($number / ($maskbyte + 1));
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$intstring = chr(ceil(($quotient - floor($quotient)) * $maskbyte)).$intstring;
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$number = floor($quotient);
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}
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return str_pad($intstring, $minbytes, "\x00", STR_PAD_LEFT);
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}
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function Dec2Bin($number) {
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while ($number >= 256) {
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$bytes[] = (($number / 256) - (floor($number / 256))) * 256;
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$number = floor($number / 256);
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}
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$bytes[] = $number;
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$binstring = '';
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for ($i = 0; $i < count($bytes); $i++) {
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$binstring = (($i == count($bytes) - 1) ? decbin($bytes[$i]) : str_pad(decbin($bytes[$i]), 8, '0', STR_PAD_LEFT)).$binstring;
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}
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return $binstring;
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}
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function Bin2Dec($binstring, $signed=false) {
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$signmult = 1;
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if ($signed) {
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if ($binstring{0} == '1') {
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$signmult = -1;
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}
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$binstring = substr($binstring, 1);
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}
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$decvalue = 0;
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for ($i = 0; $i < strlen($binstring); $i++) {
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$decvalue += ((int) substr($binstring, strlen($binstring) - $i - 1, 1)) * pow(2, $i);
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}
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return getid3_lib::CastAsInt($decvalue * $signmult);
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}
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function Bin2String($binstring) {
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// return 'hi' for input of '0110100001101001'
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$string = '';
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$binstringreversed = strrev($binstring);
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for ($i = 0; $i < strlen($binstringreversed); $i += 8) {
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$string = chr(getid3_lib::Bin2Dec(strrev(substr($binstringreversed, $i, 8)))).$string;
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}
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return $string;
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}
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function LittleEndian2String($number, $minbytes=1, $synchsafe=false) {
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$intstring = '';
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while ($number > 0) {
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if ($synchsafe) {
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$intstring = $intstring.chr($number & 127);
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$number >>= 7;
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} else {
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$intstring = $intstring.chr($number & 255);
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$number >>= 8;
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}
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}
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return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT);
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}
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function array_merge_clobber($array1, $array2) {
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// written by kcØhireability*com
|
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// taken from http://www.php.net/manual/en/function.array-merge-recursive.php
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if (!is_array($array1) || !is_array($array2)) {
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return false;
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}
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$newarray = $array1;
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foreach ($array2 as $key => $val) {
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if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) {
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$newarray[$key] = getid3_lib::array_merge_clobber($newarray[$key], $val);
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} else {
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$newarray[$key] = $val;
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}
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}
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return $newarray;
|
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}
|
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|
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|
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function array_merge_noclobber($array1, $array2) {
|
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if (!is_array($array1) || !is_array($array2)) {
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return false;
|
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}
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$newarray = $array1;
|
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foreach ($array2 as $key => $val) {
|
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if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) {
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$newarray[$key] = getid3_lib::array_merge_noclobber($newarray[$key], $val);
|
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} elseif (!isset($newarray[$key])) {
|
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$newarray[$key] = $val;
|
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}
|
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}
|
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return $newarray;
|
||
}
|
||
|
||
|
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function fileextension($filename, $numextensions=1) {
|
||
if (strstr($filename, '.')) {
|
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$reversedfilename = strrev($filename);
|
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$offset = 0;
|
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for ($i = 0; $i < $numextensions; $i++) {
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$offset = strpos($reversedfilename, '.', $offset + 1);
|
||
if ($offset === false) {
|
||
return '';
|
||
}
|
||
}
|
||
return strrev(substr($reversedfilename, 0, $offset));
|
||
}
|
||
return '';
|
||
}
|
||
|
||
|
||
function PlaytimeString($playtimeseconds) {
|
||
$contentseconds = round((($playtimeseconds / 60) - floor($playtimeseconds / 60)) * 60);
|
||
$contentminutes = floor($playtimeseconds / 60);
|
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if ($contentseconds >= 60) {
|
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$contentseconds -= 60;
|
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$contentminutes++;
|
||
}
|
||
return intval($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, $algorithm) {
|
||
|
||
switch ($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;
|
||
}
|
||
|
||
static $iconv_broken_or_unavailable = array();
|
||
if (is_null(@$iconv_broken_or_unavailable[$in_charset.'_'.$out_charset])) {
|
||
$GETID3_ICONV_TEST_STRING = ' !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~€<7F>‚ƒ„…†‡ˆ‰Š‹Œ<E280B9>Ž<EFBFBD><C5BD>‘’“”•–—˜™š›œ<E280BA>žŸ ¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ';
|
||
|
||
// Check iconv()
|
||
if (function_exists('iconv')) {
|
||
if (@iconv($in_charset, 'ISO-8859-1', @iconv('ISO-8859-1', $in_charset, $GETID3_ICONV_TEST_STRING)) == $GETID3_ICONV_TEST_STRING) {
|
||
if (@iconv($out_charset, 'ISO-8859-1', @iconv('ISO-8859-1', $out_charset, $GETID3_ICONV_TEST_STRING)) == $GETID3_ICONV_TEST_STRING) {
|
||
// everything works, use iconv()
|
||
$iconv_broken_or_unavailable[$in_charset.'_'.$out_charset] = false;
|
||
} else {
|
||
// iconv() available, but broken. Use getID3()'s iconv_fallback() conversions instead
|
||
// known issue in PHP v4.1.x
|
||
$iconv_broken_or_unavailable[$in_charset.'_'.$out_charset] = true;
|
||
}
|
||
} else {
|
||
// iconv() available, but broken. Use getID3()'s iconv_fallback() conversions instead
|
||
// known issue in PHP v4.1.x
|
||
$iconv_broken_or_unavailable[$in_charset.'_'.$out_charset] = true;
|
||
}
|
||
} else {
|
||
// iconv() unavailable, use getID3()'s iconv_fallback() conversions
|
||
$iconv_broken_or_unavailable[$in_charset.'_'.$out_charset] = true;
|
||
}
|
||
}
|
||
|
||
if ($iconv_broken_or_unavailable[$in_charset.'_'.$out_charset]) {
|
||
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 '.$out_charset);
|
||
}
|
||
|
||
if ($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 $string;
|
||
}
|
||
|
||
|
||
function MultiByteCharString2HTML($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) {
|
||
$charval = (($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) {
|
||
$charval = (($char_ord_val & 0x0F) << 12);
|
||
$charval += ((ord($string{++$i}) & 0x3F) << 6);
|
||
$charval += (ord($string{++$i}) & 0x3F);
|
||
} elseif ((($char_ord_val & 0xC0) >> 6) == 0x03) {
|
||
$charval = (($char_ord_val & 0x1F) << 6);
|
||
$charval += (ord($string{++$i}) & 0x3F);
|
||
}
|
||
if (($charval >= 32) && ($charval <= 127)) {
|
||
$HTMLstring .= chr($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) {
|
||
$GetDataImageSize = false;
|
||
if ($tempfilename = tempnam('*', 'getID3')) {
|
||
if ($tmp = @fopen($tempfilename, 'wb')) {
|
||
fwrite($tmp, $imgData);
|
||
fclose($tmp);
|
||
$GetDataImageSize = @GetImageSize($tempfilename);
|
||
}
|
||
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;
|
||
}
|
||
|
||
}
|
||
|
||
?>
|