// // available at http://getid3.sourceforge.net /// ///////////////////////////////////////////////////////////////// // // // getid3.functions.php - part of getID3() // // See getid3.readme.txt for more details // // // ///////////////////////////////////////////////////////////////// if (!function_exists('PrintHexBytes')) { function PrintHexBytes($string) { $returnstring = ''; for ($i = 0; $i < strlen($string); $i++) { $returnstring .= str_pad(dechex(ord(substr($string, $i, 1))), 2, '0', STR_PAD_LEFT).' '; } return $returnstring; } } if (!function_exists('PrintTextBytes')) { function PrintTextBytes($string) { $returnstring = ''; for ($i = 0; $i < strlen($string); $i++) { if (ord(substr($string, $i, 1)) <= 31) { $returnstring .= ' '; } else { $returnstring .= ' '.substr($string, $i, 1).' '; } } return $returnstring; } } if (!function_exists('FixTextFields')) { function FixTextFields($text) { $text = SafeStripSlashes($text); $text = str_replace('\'', ''', $text); $text = str_replace('"', '"', $text); return $text; } } if (!function_exists('SafeStripSlashes')) { function SafeStripSlashes($text) { if (get_magic_quotes_gpc()) { return stripslashes($text); } return $text; } } if (!function_exists('table_var_dump')) { function table_var_dump($variable) { $returnstring = ''; switch (gettype($variable)) { case 'array': $returnstring .= ''; foreach ($variable as $key => $value) { $returnstring .= ''; $returnstring .= ''; } else { $returnstring .= ''; } } $returnstring .= '

'.str_replace(chr(0), ' ', $key).'

'.gettype($value); if (is_array($value)) { $returnstring .= ' ('.count($value).')'; } elseif (is_string($value)) { $returnstring .= ' ('.strlen($value).')'; } if (($key == 'data') && isset($variable['image_mime']) && isset($variable['dataoffset'])) { require_once(GETID3_INCLUDEPATH.'getid3.getimagesize.php'); $imagechunkcheck = GetDataImageSize($value); $DumpedImageSRC = $_REQUEST['filename'].'.'.$variable['dataoffset'].'.'.ImageTypesLookup($imagechunkcheck[2]); if ($tempimagefile = fopen($DumpedImageSRC, 'wb')) { fwrite($tempimagefile, $value); fclose($tempimagefile); } $returnstring .= '

'.table_var_dump($value).'

'; break; case 'boolean': $returnstring .= ($variable ? 'TRUE' : 'FALSE'); break; case 'integer': case 'double': case 'float': $returnstring .= $variable; break; case 'object': case 'null': $returnstring .= string_var_dump($variable); break; case 'string': $variable = str_replace(chr(0), ' ', $variable); $varlen = strlen($variable); for ($i = 0; $i < $varlen; $i++) { if (ereg('['.chr(0x0A).chr(0x0D).' -;A-z]', $variable{$i})) { $returnstring .= $variable{$i}; } else { $returnstring .= '&#'.str_pad(ord($variable{$i}), 3, '0', STR_PAD_LEFT).';'; } } $returnstring = nl2br($returnstring); break; default: require_once(GETID3_INCLUDEPATH.'getid3.getimagesize.php'); $imagechunkcheck = GetDataImageSize(substr($variable, 0, FREAD_BUFFER_SIZE)); if (($imagechunkcheck[2] >= 1) && ($imagechunkcheck[2] <= 3)) { $returnstring .= ''; $returnstring .= ''; $returnstring .= ''; $returnstring .= ''; $returnstring .= '

type	'.ImageTypesLookup($imagechunkcheck[2]).'
width	'.number_format($imagechunkcheck[0]).' px
height	'.number_format($imagechunkcheck[1]).' px
size	'.number_format(strlen($variable)).' bytes

'; } else { $returnstring .= nl2br(htmlspecialchars(str_replace(chr(0), ' ', $variable))); } break; } return $returnstring; } } if (!function_exists('string_var_dump')) { function string_var_dump($variable) { ob_start(); var_dump($variable); $dumpedvariable = ob_get_contents(); ob_end_clean(); return $dumpedvariable; } } if (!function_exists('fileextension')) { function fileextension($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, $offset)); } return ''; } } if (!function_exists('RemoveAccents')) { function RemoveAccents($string) { return strtr($string, 'ŠŒŽšœžŸ¥µÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýÿ', 'SOZsozYYuAAAAAAACEEEEIIIIDNOOOOOOUUUUYsaaaaaaaceeeeiiiionoooooouuuuyy'); } } if (!function_exists('MoreNaturalSort')) { function MoreNaturalSort($ar1, $ar2) { if ($ar1 === $ar2) { return 0; } $len1 = strlen($ar1); $len2 = strlen($ar2); $shortest = min($len1, $len2); if (substr($ar1, 0, $shortest) === substr($ar2, 0, $shortest)) { // the shorter argument is the beginning of the longer one, like "str" and "string" if ($len1 < $len2) { return -1; } elseif ($len1 > $len2) { return 1; } return 0; } $ar1 = RemoveAccents(strtolower(trim($ar1))); $ar2 = RemoveAccents(strtolower(trim($ar2))); $translatearray = array('\''=>'', '"'=>'', '_'=>' ', '('=>'', ')'=>'', '-'=>' ', ' '=>' ', '.'=>'', ','=>''); foreach ($translatearray as $key => $val) { $ar1 = str_replace($key, $val, $ar1); $ar2 = str_replace($key, $val, $ar2); } if ($ar1 < $ar2) { return -1; } elseif ($ar1 > $ar2) { return 1; } return 0; } } if (!function_exists('trunc')) { function trunc($floatnumber) { // truncates a floating-point number at the decimal point // returns int (if possible, otherwise double) if ($floatnumber >= 1) { $truncatednumber = floor($floatnumber); } elseif ($floatnumber <= -1) { $truncatednumber = ceil($floatnumber); } else { $truncatednumber = 0; } if ($truncatednumber <= pow(2, 30)) { $truncatednumber = (int) $truncatednumber; } return $truncatednumber; } } if (!function_exists('CastAsInt')) { function CastAsInt($doublenum) { // convert a double to type int, only if possible if (trunc($doublenum) == $doublenum) { // it's not floating point if ($doublenum <= pow(2, 30)) { // it's within int range $doublenum = (int) $doublenum; } } return $doublenum; } } if (!function_exists('getmicrotime')) { function getmicrotime() { list($usec, $sec) = explode(' ', microtime()); return ((float) $usec + (float) $sec); } } if (!function_exists('DecimalBinary2Float')) { function DecimalBinary2Float($binarynumerator) { $numerator = Bin2Dec($binarynumerator); $denominator = Bin2Dec(str_repeat('1', strlen($binarynumerator))); return ($numerator / $denominator); } } if (!function_exists('NormalizeBinaryPoint')) { function NormalizeBinaryPoint($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) $exponent); } } if (!function_exists('Float2BinaryDecimal')) { function Float2BinaryDecimal($floatvalue) { // http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html $maxbits=128; // to how many bits of precision should the calculations be taken? $intpart = trunc($floatvalue); $floatpart = abs($floatvalue - $intpart); $pointbitstring = ''; while (($floatpart != 0) && (strlen($pointbitstring) < $maxbits)) { $floatpart *= 2; $pointbitstring .= (string) trunc($floatpart); $floatpart -= trunc($floatpart); } $binarypointnumber = decbin($intpart).'.'.$pointbitstring; return $binarypointnumber; } } if (!function_exists('Float2String')) { function Float2String($floatvalue, $bits) { // http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee-expl.html if (($bits != 32) && ($bits != 64)) { return false; } elseif ($bits == 32) { $exponentbits = 8; $fractionbits = 23; } elseif ($bits == 64) { $exponentbits = 11; $fractionbits = 52; } if ($floatvalue >= 0) { $signbit = '0'; } else { $signbit = '1'; } $normalizedbinary = NormalizeBinaryPoint(Float2BinaryDecimal($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), $fractionbits, '0', STR_PAD_RIGHT); return BigEndian2String(Bin2Dec($signbit.$exponentbitstring.$fractionbitstring), $bits % 8, false); } } if (!function_exists('LittleEndian2Float')) { function LittleEndian2Float($byteword) { return BigEndian2Float(strrev($byteword)); } } if (!function_exists('BigEndian2Float')) { function BigEndian2Float($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 $bitword = BigEndian2Bin($byteword); $signbit = $bitword{0}; if (strlen($byteword) == 4) { // 32-bit DWORD $exponentbits = 8; $fractionbits = 23; } elseif (strlen($byteword) == 8) { // 64-bit QWORD $exponentbits = 11; $fractionbits = 52; } else { return false; } $exponentstring = substr($bitword, 1, $exponentbits); $fractionstring = substr($bitword, 9, $fractionbits); $exponent = Bin2Dec($exponentstring); $fraction = Bin2Dec($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, $exponentbits - 1) - 2))) * DecimalBinary2Float($fractionstring); if ($signbit == '1') { $floatvalue *= -1; } } elseif ($exponent != 0) { $floatvalue = pow(2, ($exponent - (pow(2, $exponentbits - 1) - 1))) * (1 + DecimalBinary2Float($fractionstring)); if ($signbit == '1') { $floatvalue *= -1; } } return (float) $floatvalue; } } if (!function_exists('BigEndian2Int')) { function BigEndian2Int($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 & ($signmaskbit - 1)); } break; default: die('ERROR: Cannot have signed integers larger than 32-bits in BigEndian2Int()'); break; } } return CastAsInt($intvalue); } } if (!function_exists('LittleEndian2Int')) { function LittleEndian2Int($byteword, $signed=false) { return BigEndian2Int(strrev($byteword), false, $signed); } } if (!function_exists('BigEndian2Bin')) { function BigEndian2Bin($byteword) { $binvalue = ''; $bytewordlen = strlen($byteword); for ($i = 0; $i < $bytewordlen; $i++) { $binvalue .= str_pad(decbin(ord($byteword{$i})), 8, '0', STR_PAD_LEFT); } return $binvalue; } } if (!function_exists('BigEndian2String')) { function BigEndian2String($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 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, $minbytes, chr(0), STR_PAD_LEFT); } } if (!function_exists('Dec2Bin')) { function Dec2Bin($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 $binstring; } } if (!function_exists('Bin2Dec')) { function Bin2Dec($binstring) { $decvalue = 0; for ($i = 0; $i < strlen($binstring); $i++) { $decvalue += ((int) substr($binstring, strlen($binstring) - $i - 1, 1)) * pow(2, $i); } return CastAsInt($decvalue); } } if (!function_exists('Bin2String')) { function Bin2String($binstring) { // return 'hi' for input of '0110100001101001' $string = ''; $binstringreversed = strrev($binstring); for ($i = 0; $i < strlen($binstringreversed); $i += 8) { $string = chr(Bin2Dec(strrev(substr($binstringreversed, $i, 8)))).$string; } return $string; } } if (!function_exists('LittleEndian2String')) { function LittleEndian2String($number, $minbytes=1, $synchsafe=false) { while ($number > 0) { if ($synchsafe) { $intstring = $intstring.chr($number & 127); $number >>= 7; } else { $intstring = $intstring.chr($number & 255); $number >>= 8; } } return $intstring; } } if (!function_exists('Bool2IntString')) { function Bool2IntString($intvalue) { if ($intvalue) { return '1'; } else { return '0'; } } } if (!function_exists('IntString2Bool')) { function IntString2Bool($char) { if ($char == '1') { return true; } elseif ($char == '0') { return false; } } } if (!function_exists('DeUnSynchronise')) { function DeUnSynchronise($data) { return str_replace(chr(0xFF).chr(0x00), chr(0xFF), $data); } } if (!function_exists('Unsynchronise')) { function Unsynchronise($data) { // Whenever a false synchronisation is found within the tag, one zeroed // byte is inserted after the first false synchronisation byte. The // format of a correct sync that should be altered by ID3 encoders is as // follows: // %11111111 111xxxxx // And should be replaced with: // %11111111 00000000 111xxxxx // This has the side effect that all $FF 00 combinations have to be // altered, so they won't be affected by the decoding process. Therefore // all the $FF 00 combinations have to be replaced with the $FF 00 00 // combination during the unsynchronisation. $data = str_replace(chr(0xFF).chr(0x00), chr(0xFF).chr(0x00).chr(0x00), $data); $unsyncheddata = ''; for ($i = 0; $i < strlen($data); $i++) { $thischar = $data{$i}; $unsyncheddata .= $thischar; if ($thischar == chr(255)) { $nextchar = ord(substr($data, $i + 1, 1)); if (($nextchar | 0xE0) == 0xE0) { // previous byte = 11111111, this byte = 111????? $unsyncheddata .= chr(0); } } } return $unsyncheddata; } } if (!function_exists('is_hash')) { function is_hash($var) { // written by dev-null@christophe.vg // taken from http://www.php.net/manual/en/function.array-merge-recursive.php if (is_array($var)) { $keys = array_keys($var); $all_num = true; for ($i = 0; $i < count($keys); $i++) { if (is_string($keys[$i])) { return true; } } } return false; } } if (!function_exists('array_join_merge')) { function array_join_merge($arr1, $arr2) { // written by dev-null@christophe.vg // taken from http://www.php.net/manual/en/function.array-merge-recursive.php if (is_array($arr1) && is_array($arr2)) { // the same -> merge $new_array = array(); if (is_hash($arr1) && is_hash($arr2)) { // hashes -> merge based on keys $keys = array_merge(array_keys($arr1), array_keys($arr2)); foreach ($keys as $key) { $new_array[$key] = array_join_merge($arr1[$key], $arr2[$key]); } } else { // two real arrays -> merge $new_array = array_reverse(array_unique(array_reverse(array_merge($arr1,$arr2)))); } return $new_array; } else { // not the same ... take new one if defined, else the old one stays return $arr2 ? $arr2 : $arr1; } } } function array_merge_clobber($array1, $array2) { // written by kc@hireability.com // taken from http://www.php.net/manual/en/function.array-merge-recursive.php if (!is_array($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] = 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] = array_merge_noclobber($newarray[$key], $val); } elseif (!isset($newarray[$key])) { $newarray[$key] = $val; } } return $newarray; } if (!function_exists('RoughTranslateUnicodeToASCII')) { function RoughTranslateUnicodeToASCII($rawdata, $frame_textencoding) { // rough translation of data for application that can't handle Unicode data $tempstring = ''; switch ($frame_textencoding) { case 0: // ISO-8859-1. Terminated with $00. $asciidata = $rawdata; break; case 1: // UTF-16 encoded Unicode with BOM. Terminated with $00 00. $asciidata = $rawdata; if (substr($asciidata, 0, 2) == chr(0xFF).chr(0xFE)) { // remove BOM, only if present (it should be, but...) $asciidata = substr($asciidata, 2); } if (substr($asciidata, strlen($asciidata) - 2, 2) == chr(0).chr(0)) { $asciidata = substr($asciidata, 0, strlen($asciidata) - 2); // remove terminator, only if present (it should be, but...) } for ($i = 0; $i < strlen($asciidata); $i += 2) { if ((ord($asciidata{$i}) <= 0x7F) || (ord($asciidata{$i}) >= 0xA0)) { $tempstring .= $asciidata{$i}; } else { $tempstring .= '?'; } } $asciidata = $tempstring; break; case 2: // UTF-16BE encoded Unicode without BOM. Terminated with $00 00. $asciidata = $rawdata; if (substr($asciidata, strlen($asciidata) - 2, 2) == chr(0).chr(0)) { $asciidata = substr($asciidata, 0, strlen($asciidata) - 2); // remove terminator, only if present (it should be, but...) } for ($i = 0; $i < strlen($asciidata); $i += 2) { if ((ord($asciidata{$i}) <= 0x7F) || (ord($asciidata{$i}) >= 0xA0)) { $tempstring .= $asciidata{$i}; } else { $tempstring .= '?'; } } $asciidata = $tempstring; break; case 3: // UTF-8 encoded Unicode. Terminated with $00. $asciidata = utf8_decode($rawdata); break; case 255: // Unicode, Big-Endian. Terminated with $00 00. $asciidata = $rawdata; if (substr($asciidata, strlen($asciidata) - 2, 2) == chr(0).chr(0)) { $asciidata = substr($asciidata, 0, strlen($asciidata) - 2); // remove terminator, only if present (it should be, but...) } for ($i = 0; ($i + 1) < strlen($asciidata); $i += 2) { if ((ord($asciidata{($i + 1)}) <= 0x7F) || (ord($asciidata{($i + 1)}) >= 0xA0)) { $tempstring .= $asciidata{($i + 1)}; } else { $tempstring .= '?'; } } $asciidata = $tempstring; break; default: // shouldn't happen, but in case $frame_textencoding is not 1 <= $frame_textencoding <= 4 // just pass the data through unchanged. $asciidata = $rawdata; break; } if (substr($asciidata, strlen($asciidata) - 1, 1) == chr(0)) { // remove null terminator, if present $asciidata = NoNullString($asciidata); } return $asciidata; // return str_replace(chr(0), '', $asciidata); // just in case any nulls slipped through } } if (!function_exists('PlaytimeString')) { function PlaytimeString($playtimeseconds) { $contentseconds = round((($playtimeseconds / 60) - floor($playtimeseconds / 60)) * 60); $contentminutes = floor($playtimeseconds / 60); if ($contentseconds >= 60) { $contentseconds -= 60; $contentminutes++; } return number_format($contentminutes).':'.str_pad($contentseconds, 2, 0, STR_PAD_LEFT); } } if (!function_exists('CloseMatch')) { function CloseMatch($value1, $value2, $tolerance) { return (abs($value1 - $value2) <= $tolerance); } } if (!function_exists('ID3v1matchesID3v2')) { function ID3v1matchesID3v2($id3v1, $id3v2) { $requiredindices = array('title', 'artist', 'album', 'year', 'genre', 'comment'); foreach ($requiredindices as $requiredindex) { if (!isset($id3v1["$requiredindex"])) { $id3v1["$requiredindex"] = ''; } if (!isset($id3v2["$requiredindex"])) { $id3v2["$requiredindex"] = ''; } } if (trim($id3v1['title']) != trim(substr($id3v2['title'], 0, 30))) { return false; } if (trim($id3v1['artist']) != trim(substr($id3v2['artist'], 0, 30))) { return false; } if (trim($id3v1['album']) != trim(substr($id3v2['album'], 0, 30))) { return false; } if (trim($id3v1['year']) != trim(substr($id3v2['year'], 0, 4))) { return false; } if (trim($id3v1['genre']) != trim($id3v2['genre'])) { return false; } if (isset($id3v1['track'])) { if (!isset($id3v1['track']) || (trim($id3v1['track']) != trim($id3v2['track']))) { return false; } if (trim($id3v1['comment']) != trim(substr($id3v2['comment'], 0, 28))) { return false; } } else { if (trim($id3v1['comment']) != trim(substr($id3v2['comment'], 0, 30))) { return false; } } return true; } } if (!function_exists('FILETIMEtoUNIXtime')) { function FILETIMEtoUNIXtime($FILETIME, $round=true) { // FILETIME is a 64-bit unsigned integer representing // the number of 100-nanosecond intervals since January 1, 1601 // UNIX timestamp is number of seconds since January 1, 1970 // 116444736000000000 = 10000000 * 60 * 60 * 24 * 365 * 369 + 89 leap days if ($round) { return round(($FILETIME - 116444736000000000) / 10000000); } return ($FILETIME - 116444736000000000) / 10000000; } } if (!function_exists('GUIDtoBytestring')) { function GUIDtoBytestring($GUIDstring) { // Microsoft defines these 16-byte (128-bit) GUIDs in the strangest way: // first 4 bytes are in little-endian order // next 2 bytes are appended in little-endian order // next 2 bytes are appended in little-endian order // next 2 bytes are appended in big-endian order // next 6 bytes are appended in big-endian order // AaBbCcDd-EeFf-GgHh-IiJj-KkLlMmNnOoPp is stored as this 16-byte string: // $Dd $Cc $Bb $Aa $Ff $Ee $Hh $Gg $Ii $Jj $Kk $Ll $Mm $Nn $Oo $Pp $hexbytecharstring = chr(hexdec(substr($GUIDstring, 6, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 4, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 2, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 0, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 11, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 9, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 16, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 14, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 19, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 21, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 24, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 26, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 28, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 30, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 32, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 34, 2))); return $hexbytecharstring; } } if (!function_exists('BytestringToGUID')) { function BytestringToGUID($Bytestring) { $GUIDstring = str_pad(dechex(ord($Bytestring{3})), 2, '0', STR_PAD_LEFT); $GUIDstring .= str_pad(dechex(ord($Bytestring{2})), 2, '0', STR_PAD_LEFT); $GUIDstring .= str_pad(dechex(ord($Bytestring{1})), 2, '0', STR_PAD_LEFT); $GUIDstring .= str_pad(dechex(ord($Bytestring{0})), 2, '0', STR_PAD_LEFT); $GUIDstring .= '-'; $GUIDstring .= str_pad(dechex(ord($Bytestring{5})), 2, '0', STR_PAD_LEFT); $GUIDstring .= str_pad(dechex(ord($Bytestring{4})), 2, '0', STR_PAD_LEFT); $GUIDstring .= '-'; $GUIDstring .= str_pad(dechex(ord($Bytestring{7})), 2, '0', STR_PAD_LEFT); $GUIDstring .= str_pad(dechex(ord($Bytestring{6})), 2, '0', STR_PAD_LEFT); $GUIDstring .= '-'; $GUIDstring .= str_pad(dechex(ord($Bytestring{8})), 2, '0', STR_PAD_LEFT); $GUIDstring .= str_pad(dechex(ord($Bytestring{9})), 2, '0', STR_PAD_LEFT); $GUIDstring .= '-'; $GUIDstring .= str_pad(dechex(ord($Bytestring{10})), 2, '0', STR_PAD_LEFT); $GUIDstring .= str_pad(dechex(ord($Bytestring{11})), 2, '0', STR_PAD_LEFT); $GUIDstring .= str_pad(dechex(ord($Bytestring{12})), 2, '0', STR_PAD_LEFT); $GUIDstring .= str_pad(dechex(ord($Bytestring{13})), 2, '0', STR_PAD_LEFT); $GUIDstring .= str_pad(dechex(ord($Bytestring{14})), 2, '0', STR_PAD_LEFT); $GUIDstring .= str_pad(dechex(ord($Bytestring{15})), 2, '0', STR_PAD_LEFT); return strtoupper($GUIDstring); } } if (!function_exists('BitrateColor')) { function BitrateColor($bitrate) { $bitrate--; $bitrate = max($bitrate, 0); $bitrate = min($bitrate, 255); //$bitrate = max($bitrate, 32); //$bitrate = min($bitrate, 143); //$bitrate = ($bitrate * 2) - 32; $Rcomponent = max(255 - ($bitrate * 2), 0); $Gcomponent = max(($bitrate * 2) - 255, 0); if ($bitrate > 127) { $Bcomponent = max((255 - $bitrate) * 2, 0); } else { $Bcomponent = max($bitrate * 2, 0); } return str_pad(dechex($Rcomponent), 2, '0', STR_PAD_LEFT).str_pad(dechex($Gcomponent), 2, '0', STR_PAD_LEFT).str_pad(dechex($Bcomponent), 2, '0', STR_PAD_LEFT); } } if (!function_exists('BitrateText')) { function BitrateText($bitrate) { return ''.round($bitrate).' kbps'; } } if (!function_exists('image_type_to_mime_type')) { function image_type_to_mime_type($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'); } } if (!function_exists('utf8_decode')) { // PHP has this function built-in if it's configured with the --with-xml option // This version of the function is only provided in case XML isn't installed function utf8_decode($utf8text) { // http://www.php.net/manual/en/function.utf8-encode.php // bytes bits representation // 1 7 0bbbbbbb // 2 11 110bbbbb 10bbbbbb // 3 16 1110bbbb 10bbbbbb 10bbbbbb // 4 21 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb $utf8length = strlen($utf8text); $decodedtext = ''; for ($i = 0; $i < $utf8length; $i++) { if ((ord($utf8text{$i}) & 0x80) == 0) { $decodedtext .= $utf8text{$i}; } elseif ((ord($utf8text{$i}) & 0xF0) == 0xF0) { $decodedtext .= '?'; $i += 3; } elseif ((ord($utf8text{$i}) & 0xE0) == 0xE0) { $decodedtext .= '?'; $i += 2; } elseif ((ord($utf8text{$i}) & 0xC0) == 0xC0) { // 2 11 110bbbbb 10bbbbbb $decodedchar = Bin2Dec(substr(Dec2Bin(ord($utf8text{$i})), 3, 5).substr(Dec2Bin(ord($utf8text{($i + 1)})), 2, 6)); if ($decodedchar <= 255) { $decodedtext .= chr($decodedchar); } else { $decodedtext .= '?'; } $i += 1; } } return $decodedtext; } } if (!function_exists('DateMac2Unix')) { function DateMac2Unix($macdate) { // Macintosh timestamp: seconds since 00:00h January 1, 1904 // UNIX timestamp: seconds since 00:00h January 1, 1970 return CastAsInt($macdate - 2082844800); } } if (!function_exists('FixedPoint8_8')) { function FixedPoint8_8($rawdata) { return BigEndian2Int(substr($rawdata, 0, 1)) + (float) (BigEndian2Int(substr($rawdata, 1, 1)) / pow(2, 8)); } } if (!function_exists('FixedPoint16_16')) { function FixedPoint16_16($rawdata) { return BigEndian2Int(substr($rawdata, 0, 2)) + (float) (BigEndian2Int(substr($rawdata, 2, 2)) / pow(2, 16)); } } if (!function_exists('FixedPoint2_30')) { function FixedPoint2_30($rawdata) { $binarystring = BigEndian2Bin($rawdata); return Bin2Dec(substr($binarystring, 0, 2)) + (float) (Bin2Dec(substr($binarystring, 2, 30)) / pow(2, 30)); } } if (!function_exists('Pascal2String')) { function Pascal2String($pascalstring) { // Pascal strings have 1 byte at the beginning saying how many chars are in the string return substr($pascalstring, 1); } } if (!function_exists('NoNullString')) { function NoNullString($nullterminatedstring) { // remove the single null terminator on null terminated strings if (substr($nullterminatedstring, strlen($nullterminatedstring) - 1, 1) === chr(0)) { return substr($nullterminatedstring, 0, strlen($nullterminatedstring) - 1); } return $nullterminatedstring; } } if (!function_exists('FileSizeNiceDisplay')) { function FileSizeNiceDisplay($filesize, $precision=2) { if ($filesize < 1000) { $sizeunit = 'bytes'; $precision = 0; } else { $filesize /= 1024; $sizeunit = 'kB'; } if ($filesize >= 1000) { $filesize /= 1024; $sizeunit = 'MB'; } if ($filesize >= 1000) { $filesize /= 1024; $sizeunit = 'GB'; } return number_format($filesize, $precision).' '.$sizeunit; } } if (!function_exists('DOStime2UNIXtime')) { function DOStime2UNIXtime($DOSdate, $DOStime) { // wFatDate // Specifies the MS-DOS date. The date is a packed 16-bit value with the following format: // Bits Contents // 0-4 Day of the month (1-31) // 5-8 Month (1 = January, 2 = February, and so on) // 9-15 Year offset from 1980 (add 1980 to get actual year) $UNIXday = ($DOSdate & 0x001F); $UNIXmonth = (($DOSdate & 0x01E0) >> 5); $UNIXyear = (($DOSdate & 0xFE00) >> 9) + 1980; // wFatTime // Specifies the MS-DOS time. The time is a packed 16-bit value with the following format: // Bits Contents // 0-4 Second divided by 2 // 5-10 Minute (0-59) // 11-15 Hour (0-23 on a 24-hour clock) $UNIXsecond = ($DOStime & 0x001F) * 2; $UNIXminute = (($DOStime & 0x07E0) >> 5); $UNIXhour = (($DOStime & 0xF800) >> 11); return mktime($UNIXhour, $UNIXminute, $UNIXsecond, $UNIXmonth, $UNIXday, $UNIXyear); } } if (!function_exists('CreateDeepArray')) { function CreateDeepArray($ArrayPath, $Separator, $Value) { // assigns $Value to a nested array path: // $foo = CreateDeepArray('/path/to/my', '/', 'file.txt') // is the same as: // $foo = array('path'=>array('to'=>'array('my'=>array('file.txt')))); // or // $foo['path']['to']['my'] = 'file.txt'; if (($pos = strpos($ArrayPath, $Separator)) !== false) { $array[substr($ArrayPath, 0, $pos)] = CreateDeepArray(substr($ArrayPath, $pos + 1), $Separator, $Value); } else { $array["$ArrayPath"] = $Value; } return $array; } } if (!function_exists('md5_file')) { // Allan Hansen // md5_file() exists in PHP 4.2.0. // The following works under UNIX only, but dies on windows function md5_file($file) { if (substr(php_uname(), 0, 7) == 'Windows') { die('PHP 4.2.0 or newer required for md5_file()'); } $file = str_replace('`', '\\`', $file); if (ereg("^([0-9a-f]{32})[ \t\n\r]", `md5sum "$file"`, $r)) { return $r[1]; } return false; } } if (!function_exists('md5_data')) { // Allan Hansen // md5_data() - returns md5sum for a file from startuing position to absolute end position function md5_data($file, $offset, $end) { // first try and create a temporary file in the same directory as the file being scanned if (($dataMD5filename = tempnam('.', eregi_replace('[^[:alnum:]]', '', dirname($file)))) === false) { // if that fails, create a temporary file in the system temp directory $dataMD5filename = tempnam('/tmp', 'getID3'); } // copy parts of file if ($MD5fp = fopen($dataMD5filename, 'wb')) { if ($fp = fopen($file, 'rb')) { fseek($fp, $offset, SEEK_SET); $byteslefttowrite = $end - $offset; while (($byteslefttowrite > 0) && ($buffer = fread($fp, FREAD_BUFFER_SIZE))) { $byteslefttowrite -= fwrite($MD5fp, $buffer, $byteslefttowrite); } fclose($fp); } else { return false; } fclose($MD5fp); $md5 = md5_file($dataMD5filename); unlink($dataMD5filename); return $md5; } return false; } } if (!function_exists('TwosCompliment2Decimal')) { function TwosCompliment2Decimal($BinaryValue) { // http://sandbox.mc.edu/~bennet/cs110/tc/tctod.html // First check if the number is negative or positive by looking at the sign bit. // If it is positive, simply convert it to decimal. // If it is negative, make it positive by inverting the bits and adding one. // Then, convert the result to decimal. // The negative of this number is the value of the original binary. if ($BinaryValue > 255) { return false; } else { if ($BinaryValue & 0x80) { // negative number return (0 - ((~$BinaryValue & 0xFF) + 1)); } else { // positive number return $BinaryValue; } } } } if (!function_exists('LastArrayElement')) { function LastArrayElement($MyArray) { if (!is_array($MyArray)) { return false; } if (empty($MyArray)) { return null; } foreach ($MyArray as $key => $value) { } return $value; } } if (!function_exists('safe_inc')) { function safe_inc(&$variable, $increment=1) { if (isset($variable)) { $variable += $increment; } else { $variable = $increment; } return true; } } ?>