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Diffstat (limited to 'modules/getid3/getid3.php')
| -rw-r--r-- | modules/getid3/getid3.php | 1598 |
1 files changed, 1598 insertions, 0 deletions
diff --git a/modules/getid3/getid3.php b/modules/getid3/getid3.php new file mode 100644 index 00000000..7f6a8eb8 --- /dev/null +++ b/modules/getid3/getid3.php @@ -0,0 +1,1598 @@ +<?php +// +----------------------------------------------------------------------+ +// | PHP version 5 | +// +----------------------------------------------------------------------+ +// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen | +// +----------------------------------------------------------------------+ +// | This source file is subject to version 2 of the GPL license, | +// | that is bundled with this package in the file license.txt and is | +// | available through the world-wide-web at the following url: | +// | http://www.gnu.org/copyleft/gpl.html | +// +----------------------------------------------------------------------+ +// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org | +// +----------------------------------------------------------------------+ +// | Authors: James Heinrich <infogetid3*org> | +// | Allan Hansen <ahartemis*dk> | +// +----------------------------------------------------------------------+ +// | getid3.php | +// | Main getID3() file. | +// | dependencies: modules. | +// +----------------------------------------------------------------------+ +// +// $Id: getid3.php,v 1.26 2006/12/25 23:44:23 ah Exp $ + + +class getid3 +{ + //// Settings Section - do NOT modify this file - change setting after newing getid3! + + // Encoding + public $encoding = 'ISO-8859-1'; // CASE SENSITIVE! - i.e. (must be supported by iconv() - see http://www.gnu.org/software/libiconv/). Examples: ISO-8859-1 UTF-8 UTF-16 UTF-16BE. + public $encoding_id3v1 = 'ISO-8859-1'; // Override SPECIFICATION encoding for broken ID3v1 tags caused by bad tag programs. Examples: 'EUC-CN' for "Chinese MP3s" and 'CP1251' for "Cyrillic". + public $encoding_id3v2 = 'ISO-8859-1'; // Override ISO-8859-1 encoding for broken ID3v2 tags caused by BRAINDEAD tag programs that writes system codepage as 'ISO-8859-1' instead of UTF-8. + + // Tags - disable for speed + public $option_tag_id3v1 = true; // Read and process ID3v1 tags. + public $option_tag_id3v2 = true; // Read and process ID3v2 tags. + public $option_tag_lyrics3 = true; // Read and process Lyrics3 tags. + public $option_tag_apetag = true; // Read and process APE tags. + + // Misc calucations - disable for speed + public $option_analyze = true; // Analyze file - disable if you only need to detect file format. + public $option_accurate_results = true; // Disable to greatly speed up parsing of some file formats at the cost of accuracy. + public $option_tags_process = true; // Copy tags to root key 'tags' and 'comments' and encode to $this->encoding. + public $option_tags_images = false; // Scan tags for binary image data - ID3v2 and vorbiscomments only. + public $option_extra_info = true; // Calculate/return additional info such as bitrate, channelmode etc. + public $option_max_2gb_check = false; // Check whether file is larger than 2 Gb and thus not supported by PHP. + + // Misc data hashes - slow - require hash module + public $option_md5_data = false; // Get MD5 sum of data part - slow. + public $option_md5_data_source = false; // Use MD5 of source file if available - only FLAC, MAC, OptimFROG and Wavpack4. + public $option_sha1_data = false; // Get SHA1 sum of data part - slow. + + // Public variables + public $filename; // Filename of file being analysed. + public $fp; // Filepointer to file being analysed. + public $info; // Result array. + + // Protected variables + protected $include_path; // getid3 include path. + protected $warnings = array (); + protected $iconv_present; + + // Class constants + const VERSION = '2.0.0b4'; + const FREAD_BUFFER_SIZE = 16384; // Read buffer size in bytes. + const ICONV_TEST_STRING = ' !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ '; + + + + // Constructor - check PHP enviroment and load library. + public function __construct() { + + // Static varibles - no need to recalc every time we new getid3. + static $include_path; + static $iconv_present; + + + static $initialized; + if ($initialized) { + + // Import static variables + $this->include_path = $include_path; + $this->iconv_present = $iconv_present; + + // Run init checks only on first instance. + return; + } + + // Get include_path + $this->include_path = $include_path = dirname(__FILE__) . '/'; + + // Check for presence of iconv() and make sure it works (simpel test only). + if (function_exists('iconv') && @iconv('UTF-16LE', 'ISO-8859-1', @iconv('ISO-8859-1', 'UTF-16LE', getid3::ICONV_TEST_STRING)) == getid3::ICONV_TEST_STRING) { + $this->iconv_present = $iconv_present = true; + } + + // iconv() not present - load replacement module. + else { + $this->include_module('lib.iconv_replacement'); + $this->iconv_present = $iconv_present = false; + } + + + // Require magic_quotes_runtime off + if (get_magic_quotes_runtime()) { + throw new getid3_exception('magic_quotes_runtime must be disabled before running getID3(). Surround getid3 block by set_magic_quotes_runtime(0) and set_magic_quotes_runtime(1).'); + } + + + // Check memory limit. + $memory_limit = ini_get('memory_limit'); + if (eregi('([0-9]+)M', $memory_limit, $matches)) { + // could be stored as "16M" rather than 16777216 for example + $memory_limit = $matches[1] * 1048576; + } + if ($memory_limit <= 0) { + // Should not happen. + } elseif ($memory_limit <= 4194304) { + $this->warning('[SERIOUS] PHP has less than 4 Mb available memory and will very likely run out. Increase memory_limit in php.ini.'); + } elseif ($memory_limit <= 12582912) { + $this->warning('PHP has less than 12 Mb available memory and might run out if all modules are loaded. Increase memory_limit in php.ini if needed.'); + } + + + // Check safe_mode off + if ((bool)ini_get('safe_mode')) { + $this->warning('Safe mode is on, shorten support disabled, md5data/sha1data for ogg vorbis disabled, ogg vorbis/flac tag writing disabled.'); + } + + $initialized = true; + } + + + + // Analyze file by name + public function Analyze($filename) { + + // Init and save values + $this->filename = $filename; + $this->warnings = array (); + + // Init result array and set parameters + $this->info = array (); + $this->info['GETID3_VERSION'] = getid3::VERSION; + + // Remote files not supported + if (preg_match('/^(ht|f)tp:\/\//', $filename)) { + throw new getid3_exception('Remote files are not supported - please copy the file locally first.'); + } + + // Open local file + if (!$this->fp = @fopen($filename, 'rb')) { + throw new getid3_exception('Could not open file "'.$filename.'"'); + } + + // Set filesize related parameters + $this->info['filesize'] = filesize($filename); + $this->info['avdataoffset'] = 0; + $this->info['avdataend'] = $this->info['filesize']; + + // Option_max_2gb_check + if ($this->option_max_2gb_check) { + // PHP doesn't support integers larger than 31-bit (~2GB) + // filesize() simply returns (filesize % (pow(2, 32)), no matter the actual filesize + // ftell() returns 0 if seeking to the end is beyond the range of unsigned integer + fseek($this->fp, 0, SEEK_END); + if ((($this->info['filesize'] != 0) && (ftell($this->fp) == 0)) || + ($this->info['filesize'] < 0) || + (ftell($this->fp) < 0)) { + unset($this->info['filesize']); + fclose($this->fp); + throw new getid3_exception('File is most likely larger than 2GB and is not supported by PHP.'); + } + } + + + // ID3v2 detection (NOT parsing) done to make fileformat easier. + if (!$this->option_tag_id3v2) { + + fseek($this->fp, 0, SEEK_SET); + $header = fread($this->fp, 10); + if (substr($header, 0, 3) == 'ID3' && strlen($header) == 10) { + $this->info['id3v2']['header'] = true; + $this->info['id3v2']['majorversion'] = ord($header{3}); + $this->info['id3v2']['minorversion'] = ord($header{4}); + $this->info['avdataoffset'] += getid3_lib::BigEndian2Int(substr($header, 6, 4), 1) + 10; // length of ID3v2 tag in 10-byte header doesn't include 10-byte header length + } + } + + + // Handle tags + foreach (array ("id3v2", "id3v1", "apetag", "lyrics3") as $tag_name) { + + $option_tag = 'option_tag_' . $tag_name; + if ($this->$option_tag) { + $this->include_module('tag.'.$tag_name); + try { + $tag_class = 'getid3_' . $tag_name; + $tag = new $tag_class($this); + $tag->Analyze(); + } + catch (getid3_exception $e) { + throw $e; + } + } + } + + + + //// Determine file format by magic bytes in file header. + + // Read 32 kb file data + fseek($this->fp, $this->info['avdataoffset'], SEEK_SET); + $filedata = fread($this->fp, 32774); + + // Get huge FileFormatArray + $file_format_array = getid3::GetFileFormatArray(); + + // Identify file format - loop through $format_info and detect with reg expr + foreach ($file_format_array as $name => $info) { + + if (preg_match('/'.$info['pattern'].'/s', $filedata)) { // The /s switch on preg_match() forces preg_match() NOT to treat newline (0x0A) characters as special chars but do a binary match + + // Format detected but not supported + if (!@$info['module'] || !@$info['group']) { + fclose($this->fp); + $this->info['fileformat'] = $name; + $this->info['mime_type'] = $info['mime_type']; + $this->warning('Format only detected. Parsing not available yet.'); + $this->info['warning'] = $this->warnings; + return $this->info; + } + + $determined_format = $info; // copy $info deleted by foreach() + continue; + } + } + + // Unable to determine file format + if (!@$determined_format) { + + // Too many mp3 encoders on the market put gabage in front of mpeg files + // use assume format on these if format detection failed + if (preg_match('/\.mp[123a]$/i', $filename)) { + $determined_format = $file_format_array['mp3']; + } + + else { + fclose($this->fp); + throw new getid3_exception('Unable to determine file format'); + } + } + + // Free memory + unset($file_format_array); + + // Check for illegal ID3 tags + if (@$determined_format['fail_id3'] && (@$this->info['id3v1'] || @$this->info['id3v2'])) { + if ($determined_format['fail_id3'] === 'ERROR') { + fclose($this->fp); + throw new getid3_exception('ID3 tags not allowed on this file type.'); + } + elseif ($determined_format['fail_id3'] === 'WARNING') { + @$this->info['id3v1'] and $this->warning('ID3v1 tags not allowed on this file type.'); + @$this->info['id3v2'] and $this->warning('ID3v2 tags not allowed on this file type.'); + } + } + + // Check for illegal APE tags + if (@$determined_format['fail_ape'] && @$this->info['tags']['ape']) { + if ($determined_format['fail_ape'] === 'ERROR') { + fclose($this->fp); + throw new getid3_exception('APE tags not allowed on this file type.'); + } elseif ($determined_format['fail_ape'] === 'WARNING') { + $this->warning('APE tags not allowed on this file type.'); + } + } + + + // Set mime type + $this->info['mime_type'] = $determined_format['mime_type']; + + // Calc module file name + $determined_format['include'] = 'module.'.$determined_format['group'].'.'.$determined_format['module'].'.php'; + + // Supported format signature pattern detected, but module deleted. + if (!file_exists($this->include_path.$determined_format['include'])) { + fclose($this->fp); + throw new getid3_exception('Format not supported, module, '.$determined_format['include'].', was removed.'); + } + + // Include module + $this->include_module($determined_format['group'].'.'.$determined_format['module']); + + // Instantiate module class and analyze + $class_name = 'getid3_'.$determined_format['module']; + if (!class_exists($class_name)) { + throw new getid3_exception('Format not supported, module, '.$determined_format['include'].', is corrupt.'); + } + $class = new $class_name($this); + + try { + $this->option_analyze and $class->Analyze(); + } + catch (getid3_exception $e) { + throw $e; + } + catch (Exception $e) { + throw new getid3_exception('Corrupt file.'); + } + + // Close file + fclose($this->fp); + + // Optional - Process all tags - copy to 'tags' and convert charsets + if ($this->option_tags_process) { + $this->HandleAllTags(); + } + + + //// Optional - perform more calculations + if ($this->option_extra_info) { + + // Set channelmode on audio + if (@$this->info['audio']['channels'] == '1') { + $this->info['audio']['channelmode'] = 'mono'; + } elseif (@$this->info['audio']['channels'] == '2') { + $this->info['audio']['channelmode'] = 'stereo'; + } + + // Calculate combined bitrate - audio + video + $combined_bitrate = 0; + $combined_bitrate += (isset($this->info['audio']['bitrate']) ? $this->info['audio']['bitrate'] : 0); + $combined_bitrate += (isset($this->info['video']['bitrate']) ? $this->info['video']['bitrate'] : 0); + if (($combined_bitrate > 0) && empty($this->info['bitrate'])) { + $this->info['bitrate'] = $combined_bitrate; + } + if (!isset($this->info['playtime_seconds']) && !empty($this->info['bitrate'])) { + $this->info['playtime_seconds'] = (($this->info['avdataend'] - $this->info['avdataoffset']) * 8) / $this->info['bitrate']; + } + + // Set playtime string + if (!empty($this->info['playtime_seconds']) && empty($this->info['playtime_string'])) { + $this->info['playtime_string'] = floor(round($this->info['playtime_seconds']) / 60) . ':' . str_pad(floor(round($this->info['playtime_seconds']) % 60), 2, 0, STR_PAD_LEFT);; + } + + + // CalculateCompressionRatioVideo() { + if (@$this->info['video'] && @$this->info['video']['resolution_x'] && @$this->info['video']['resolution_y'] && @$this->info['video']['bits_per_sample']) { + + // From static image formats + if (in_array($this->info['video']['dataformat'], array ('bmp', 'gif', 'jpeg', 'jpg', 'png', 'tiff'))) { + $frame_rate = 1; + $bitrate_compressed = $this->info['filesize'] * 8; + } + + // From video formats + else { + $frame_rate = @$this->info['video']['frame_rate']; + $bitrate_compressed = @$this->info['video']['bitrate']; + } + + if ($frame_rate && $bitrate_compressed) { + $this->info['video']['compression_ratio'] = $bitrate_compressed / ($this->info['video']['resolution_x'] * $this->info['video']['resolution_y'] * $this->info['video']['bits_per_sample'] * $frame_rate); + } + } + + + // CalculateCompressionRatioAudio() { + if (@$this->info['audio']['bitrate'] && @$this->info['audio']['channels'] && @$this->info['audio']['sample_rate']) { + $this->info['audio']['compression_ratio'] = $this->info['audio']['bitrate'] / ($this->info['audio']['channels'] * $this->info['audio']['sample_rate'] * (@$this->info['audio']['bits_per_sample'] ? $this->info['audio']['bits_per_sample'] : 16)); + } + + if (@$this->info['audio']['streams']) { + foreach ($this->info['audio']['streams'] as $stream_number => $stream_data) { + if (@$stream_data['bitrate'] && @$stream_data['channels'] && @$stream_data['sample_rate']) { + $this->info['audio']['streams'][$stream_number]['compression_ratio'] = $stream_data['bitrate'] / ($stream_data['channels'] * $stream_data['sample_rate'] * (@$stream_data['bits_per_sample'] ? $stream_data['bits_per_sample'] : 16)); + } + } + } + + + // CalculateReplayGain() { + if (@$this->info['replay_gain']) { + if (!@$this->info['replay_gain']['reference_volume']) { + $this->info['replay_gain']['reference_volume'] = 89; + } + if (isset($this->info['replay_gain']['track']['adjustment'])) { + $this->info['replay_gain']['track']['volume'] = $this->info['replay_gain']['reference_volume'] - $this->info['replay_gain']['track']['adjustment']; + } + if (isset($this->info['replay_gain']['album']['adjustment'])) { + $this->info['replay_gain']['album']['volume'] = $this->info['replay_gain']['reference_volume'] - $this->info['replay_gain']['album']['adjustment']; + } + + if (isset($this->info['replay_gain']['track']['peak'])) { + $this->info['replay_gain']['track']['max_noclip_gain'] = 0 - 20 * log10($this->info['replay_gain']['track']['peak']); + } + if (isset($this->info['replay_gain']['album']['peak'])) { + $this->info['replay_gain']['album']['max_noclip_gain'] = 0 - 20 * log10($this->info['replay_gain']['album']['peak']); + } + } + + + // ProcessAudioStreams() { + if (@!$this->info['audio']['streams'] && (@$this->info['audio']['bitrate'] || @$this->info['audio']['channels'] || @$this->info['audio']['sample_rate'])) { + foreach ($this->info['audio'] as $key => $value) { + if ($key != 'streams') { + $this->info['audio']['streams'][0][$key] = $value; + } + } + } + } + + + // Get the md5/sha1sum of the audio/video portion of the file - without ID3/APE/Lyrics3/etc header/footer tags. + if ($this->option_md5_data || $this->option_sha1_data) { + + // Load data-hash library if needed + $this->include_module('lib.data_hash'); + + if ($this->option_sha1_data) { + new getid3_lib_data_hash($this, 'sha1'); + } + + if ($this->option_md5_data) { + + // no md5_data_source or option disabled -- md5_data_source supported by FLAC, MAC, OptimFROG, Wavpack4 + if (!$this->option_md5_data_source || !@$this->info['md5_data_source']) { + new getid3_lib_data_hash($this, 'md5'); + } + + // copy md5_data_source to md5_data if option set to true + elseif ($this->option_md5_data_source && @$this->info['md5_data_source']) { + $this->info['md5_data'] = $this->info['md5_data_source']; + } + } + } + + // Set warnings + if ($this->warnings) { + $this->info['warning'] = $this->warnings; + } + + // Return result + return $this->info; + } + + + + // Return array of warnings + public function warnings() { + + return $this->warnings; + } + + + + // Add warning(s) to $this->warnings[] + public function warning($message) { + + if (is_array($message)) { + $this->warnings = array_merge($this->warnings, $message); + } + else { + $this->warnings[] = $message; + } + } + + + + // Clear all warnings when cloning + public function __clone() { + + $this->warnings = array (); + + // Copy info array, otherwise it will be a reference. + $temp = $this->info; + unset($this->info); + $this->info = $temp; + } + + + + // Convert string between charsets -- iconv() wrapper + public function iconv($in_charset, $out_charset, $string, $drop01 = false) { + + if ($drop01 && ($string === "\x00" || $string === "\x01")) { + return ''; + } + + + if (!$this->iconv_present) { + return getid3_iconv_replacement::iconv($in_charset, $out_charset, $string); + } + + + // iconv() present + if ($result = @iconv($in_charset, $out_charset.'//TRANSLIT', $string)) { + + if ($out_charset == 'ISO-8859-1') { + return rtrim($result, "\x00"); + } + return $result; + } + + $this->warning('iconv() was unable to convert the string: "' . $string . '" from ' . $in_charset . ' to ' . $out_charset); + return $string; + } + + + + public function include_module($name) { + + if (!file_exists($this->include_path.'module.'.$name.'.php')) { + throw new getid3_exception('Required module.'.$name.'.php is missing.'); + } + + include_once($this->include_path.'module.'.$name.'.php'); + } + + + + public function include_module_optional($name) { + + if (!file_exists($this->include_path.'module.'.$name.'.php')) { + return; + } + + include_once($this->include_path.'module.'.$name.'.php'); + return true; + } + + + // Return array containing information about all supported formats + public static function GetFileFormatArray() { + + static $format_info = array ( + + // Audio formats + + // AC-3 - audio - Dolby AC-3 / Dolby Digital + 'ac3' => array ( + 'pattern' => '^\x0B\x77', + 'group' => 'audio', + 'module' => 'ac3', + 'mime_type' => 'audio/ac3', + ), + + // AAC - audio - Advanced Audio Coding (AAC) - ADIF format + 'adif' => array ( + 'pattern' => '^ADIF', + 'group' => 'audio', + 'module' => 'aac_adif', + 'mime_type' => 'application/octet-stream', + 'fail_ape' => 'WARNING', + ), + + + // AAC - audio - Advanced Audio Coding (AAC) - ADTS format (very similar to MP3) + 'adts' => array ( + 'pattern' => '^\xFF[\xF0-\xF1\xF8-\xF9]', + 'group' => 'audio', + 'module' => 'aac_adts', + 'mime_type' => 'application/octet-stream', + 'fail_ape' => 'WARNING', + ), + + + // AU - audio - NeXT/Sun AUdio (AU) + 'au' => array ( + 'pattern' => '^\.snd', + 'group' => 'audio', + 'module' => 'au', + 'mime_type' => 'audio/basic', + ), + + // AVR - audio - Audio Visual Research + 'avr' => array ( + 'pattern' => '^2BIT', + 'group' => 'audio', + 'module' => 'avr', + 'mime_type' => 'application/octet-stream', + ), + + // BONK - audio - Bonk v0.9+ + 'bonk' => array ( + 'pattern' => '^\x00(BONK|INFO|META| ID3)', + 'group' => 'audio', + 'module' => 'bonk', + 'mime_type' => 'audio/xmms-bonk', + ), + + // DTS - audio - Dolby Theatre System + 'dts' => array( + 'pattern' => '^\x7F\xFE\x80\x01', + 'group' => 'audio', + 'module' => 'dts', + 'mime_type' => 'audio/dts', + ), + + // FLAC - audio - Free Lossless Audio Codec + 'flac' => array ( + 'pattern' => '^fLaC', + 'group' => 'audio', + 'module' => 'xiph', + 'mime_type' => 'audio/x-flac', + ), + + // LA - audio - Lossless Audio (LA) + 'la' => array ( + 'pattern' => '^LA0[2-4]', + 'group' => 'audio', + 'module' => 'la', + 'mime_type' => 'application/octet-stream', + ), + + // LPAC - audio - Lossless Predictive Audio Compression (LPAC) + 'lpac' => array ( + 'pattern' => '^LPAC', + 'group' => 'audio', + 'module' => 'lpac', + 'mime_type' => 'application/octet-stream', + ), + + // MIDI - audio - MIDI (Musical Instrument Digital Interface) + 'midi' => array ( + 'pattern' => '^MThd', + 'group' => 'audio', + 'module' => 'midi', + 'mime_type' => 'audio/midi', + ), + + // MAC - audio - Monkey's Audio Compressor + 'mac' => array ( + 'pattern' => '^MAC ', + 'group' => 'audio', + 'module' => 'monkey', + 'mime_type' => 'application/octet-stream', + ), + + // MOD - audio - MODule (assorted sub-formats) + 'mod' => array ( + 'pattern' => '^.{1080}(M.K.|[5-9]CHN|[1-3][0-9]CH)', + 'mime_type' => 'audio/mod', + ), + + // MOD - audio - MODule (Impulse Tracker) + 'it' => array ( + 'pattern' => '^IMPM', + 'mime_type' => 'audio/it', + ), + + // MOD - audio - MODule (eXtended Module, various sub-formats) + 'xm' => array ( + 'pattern' => '^Extended Module', + 'mime_type' => 'audio/xm', + ), + + // MOD - audio - MODule (ScreamTracker) + 's3m' => array ( + 'pattern' => '^.{44}SCRM', + 'mime_type' => 'audio/s3m', + ), + + // MPC - audio - Musepack / MPEGplus SV7+ + 'mpc' => array ( + 'pattern' => '^(MP\+)', + 'group' => 'audio', + 'module' => 'mpc', + 'mime_type' => 'audio/x-musepack', + ), + + // MPC - audio - Musepack / MPEGplus SV4-6 + 'mpc_old' => array ( + 'pattern' => '^([\x00\x01\x10\x11\x40\x41\x50\x51\x80\x81\x90\x91\xC0\xC1\xD0\xD1][\x20-37][\x00\x20\x40\x60\x80\xA0\xC0\xE0])', + 'group' => 'audio', + 'module' => 'mpc_old', + 'mime_type' => 'application/octet-stream', + ), + + + // MP3 - audio - MPEG-audio Layer 3 (very similar to AAC-ADTS) + 'mp3' => array ( + 'pattern' => '^\xFF[\xE2-\xE7\xF2-\xF7\xFA-\xFF][\x00-\xEB]', + 'group' => 'audio', + 'module' => 'mp3', + 'mime_type' => 'audio/mpeg', + ), + + // OFR - audio - OptimFROG + 'ofr' => array ( + 'pattern' => '^(\*RIFF|OFR)', + 'group' => 'audio', + 'module' => 'optimfrog', + 'mime_type' => 'application/octet-stream', + ), + + // RKAU - audio - RKive AUdio compressor + 'rkau' => array ( + 'pattern' => '^RKA', + 'group' => 'audio', + 'module' => 'rkau', + 'mime_type' => 'application/octet-stream', + ), + + // SHN - audio - Shorten + 'shn' => array ( + 'pattern' => '^ajkg', + 'group' => 'audio', + 'module' => 'shorten', + 'mime_type' => 'audio/xmms-shn', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + // TTA - audio - TTA Lossless Audio Compressor (http://tta.corecodec.org) + 'tta' => array ( + 'pattern' => '^TTA', // could also be '^TTA(\x01|\x02|\x03|2|1)' + 'group' => 'audio', + 'module' => 'tta', + 'mime_type' => 'application/octet-stream', + ), + + // VOC - audio - Creative Voice (VOC) + 'voc' => array ( + 'pattern' => '^Creative Voice File', + 'group' => 'audio', + 'module' => 'voc', + 'mime_type' => 'audio/voc', + ), + + // VQF - audio - transform-domain weighted interleave Vector Quantization Format (VQF) + 'vqf' => array ( + 'pattern' => '^TWIN', + 'group' => 'audio', + 'module' => 'vqf', + 'mime_type' => 'application/octet-stream', + ), + + // WV - audio - WavPack (v4.0+) + 'vw' => array( + 'pattern' => '^wvpk', + 'group' => 'audio', + 'module' => 'wavpack', + 'mime_type' => 'application/octet-stream', + ), + + + // Audio-Video formats + + // ASF - audio/video - Advanced Streaming Format, Windows Media Video, Windows Media Audio + 'asf' => array ( + 'pattern' => '^\x30\x26\xB2\x75\x8E\x66\xCF\x11\xA6\xD9\x00\xAA\x00\x62\xCE\x6C', + 'group' => 'audio-video', + 'module' => 'asf', + 'mime_type' => 'video/x-ms-asf', + ), + + // BINK - audio/video - Bink / Smacker + 'bink' => array( + 'pattern' => '^(BIK|SMK)', + 'mime_type' => 'application/octet-stream', + ), + + // FLV - audio/video - FLash Video + 'flv' => array( + 'pattern' => '^FLV\x01', + 'group' => 'audio-video', + 'module' => 'flv', + 'mime_type' => 'video/x-flv', + ), + + // MKAV - audio/video - Mastroka + 'matroska' => array ( + 'pattern' => '^\x1A\x45\xDF\xA3', + 'mime_type' => 'application/octet-stream', + ), + + // MPEG - audio/video - MPEG (Moving Pictures Experts Group) + 'mpeg' => array ( + 'pattern' => '^\x00\x00\x01(\xBA|\xB3)', + 'group' => 'audio-video', + 'module' => 'mpeg', + 'mime_type' => 'video/mpeg', + ), + + // NSV - audio/video - Nullsoft Streaming Video (NSV) + 'nsv' => array ( + 'pattern' => '^NSV[sf]', + 'group' => 'audio-video', + 'module' => 'nsv', + 'mime_type' => 'application/octet-stream', + ), + + // Ogg - audio/video - Ogg (Ogg Vorbis, OggFLAC, Speex, Ogg Theora(*), Ogg Tarkin(*)) + 'ogg' => array ( + 'pattern' => '^OggS', + 'group' => 'audio', + 'module' => 'xiph', + 'mime_type' => 'application/ogg', + 'fail_id3' => 'WARNING', + 'fail_ape' => 'WARNING', + ), + + // QT - audio/video - Quicktime + 'quicktime' => array ( + 'pattern' => '^.{4}(cmov|free|ftyp|mdat|moov|pnot|skip|wide)', + 'group' => 'audio-video', + 'module' => 'quicktime', + 'mime_type' => 'video/quicktime', + ), + + // RIFF - audio/video - Resource Interchange File Format (RIFF) / WAV / AVI / CD-audio / SDSS = renamed variant used by SmartSound QuickTracks (www.smartsound.com) / FORM = Audio Interchange File Format (AIFF) + 'riff' => array ( + 'pattern' => '^(RIFF|SDSS|FORM)', + 'group' => 'audio-video', + 'module' => 'riff', + 'mime_type' => 'audio/x-wave', + 'fail_ape' => 'WARNING', + ), + + // Real - audio/video - RealAudio, RealVideo + 'real' => array ( + 'pattern' => '^(\.RMF|.ra)', + 'group' => 'audio-video', + 'module' => 'real', + 'mime_type' => 'audio/x-realaudio', + ), + + // SWF - audio/video - ShockWave Flash + 'swf' => array ( + 'pattern' => '^(F|C)WS', + 'group' => 'audio-video', + 'module' => 'swf', + 'mime_type' => 'application/x-shockwave-flash', + ), + + + // Still-Image formats + + // BMP - still image - Bitmap (Windows, OS/2; uncompressed, RLE8, RLE4) + 'bmp' => array ( + 'pattern' => '^BM', + 'group' => 'graphic', + 'module' => 'bmp', + 'mime_type' => 'image/bmp', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + // GIF - still image - Graphics Interchange Format + 'gif' => array ( + 'pattern' => '^GIF', + 'group' => 'graphic', + 'module' => 'gif', + 'mime_type' => 'image/gif', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + // JPEG - still image - Joint Photographic Experts Group (JPEG) + 'jpeg' => array ( + 'pattern' => '^\xFF\xD8\xFF', + 'group' => 'graphic', + 'module' => 'jpeg', + 'mime_type' => 'image/jpeg', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + // PCD - still image - Kodak Photo CD + 'pcd' => array ( + 'pattern' => '^.{2048}PCD_IPI\x00', + 'group' => 'graphic', + 'module' => 'pcd', + 'mime_type' => 'image/x-photo-cd', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + + // PNG - still image - Portable Network Graphics (PNG) + 'png' => array ( + 'pattern' => '^\x89\x50\x4E\x47\x0D\x0A\x1A\x0A', + 'group' => 'graphic', + 'module' => 'png', + 'mime_type' => 'image/png', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + + // SVG - still image - Scalable Vector Graphics (SVG) + 'svg' => array( + 'pattern' => '<!DOCTYPE svg PUBLIC ', + 'mime_type' => 'image/svg+xml', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + + // TIFF - still image - Tagged Information File Format (TIFF) + 'tiff' => array ( + 'pattern' => '^(II\x2A\x00|MM\x00\x2A)', + 'group' => 'graphic', + 'module' => 'tiff', + 'mime_type' => 'image/tiff', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + + // Data formats + + 'exe' => array( + 'pattern' => '^MZ', + 'mime_type' => 'application/octet-stream', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + // ISO - data - International Standards Organization (ISO) CD-ROM Image + 'iso' => array ( + 'pattern' => '^.{32769}CD001', + 'group' => 'misc', + 'module' => 'iso', + 'mime_type' => 'application/octet-stream', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + // RAR - data - RAR compressed data + 'rar' => array( + 'pattern' => '^Rar\!', + 'mime_type' => 'application/octet-stream', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + // SZIP - audio - SZIP compressed data + 'szip' => array ( + 'pattern' => '^SZ\x0A\x04', + 'group' => 'archive', + 'module' => 'szip', + 'mime_type' => 'application/octet-stream', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + // TAR - data - TAR compressed data + 'tar' => array( + 'pattern' => '^.{100}[0-9\x20]{7}\x00[0-9\x20]{7}\x00[0-9\x20]{7}\x00[0-9\x20\x00]{12}[0-9\x20\x00]{12}', + 'group' => 'archive', + 'module' => 'tar', + 'mime_type' => 'application/x-tar', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + // GZIP - data - GZIP compressed data + 'gz' => array( + 'pattern' => '^\x1F\x8B\x08', + 'group' => 'archive', + 'module' => 'gzip', + 'mime_type' => 'application/x-gzip', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + + // ZIP - data - ZIP compressed data + 'zip' => array ( + 'pattern' => '^PK\x03\x04', + 'group' => 'archive', + 'module' => 'zip', + 'mime_type' => 'application/zip', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + + // PAR2 - data - Parity Volume Set Specification 2.0 + 'par2' => array ( + 'pattern' => '^PAR2\x00PKT', + 'mime_type' => 'application/octet-stream', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + + // PDF - data - Portable Document Format + 'pdf' => array( + 'pattern' => '^\x25PDF', + 'mime_type' => 'application/pdf', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + + // DOC - data - Microsoft Word + 'msoffice' => array( + 'pattern' => '^\xD0\xCF\x11\xE0', // D0CF11E == DOCFILE == Microsoft Office Document + 'mime_type' => 'application/octet-stream', + 'fail_id3' => 'ERROR', + 'fail_ape' => 'ERROR', + ), + ); + + return $format_info; + } + + + + // Recursive over array - converts array to $encoding charset from $this->encoding + function CharConvert(&$array, $encoding) { + + // Identical encoding - end here + if ($encoding == $this->encoding) { + return; + } + + // Loop thru array + foreach ($array as $key => $value) { + + // Go recursive + if (is_array($value)) { + $this->CharConvert($array[$key], $encoding); + } + + // Convert string + elseif (is_string($value)) { + $array[$key] = $this->iconv($encoding, $this->encoding, $value); + } + } + } + + + + // Convert and copy tags + protected function HandleAllTags() { + + // Key name => array (tag name, character encoding) + static $tags = array ( + 'asf' => array ('asf', 'UTF-16LE'), + 'midi' => array ('midi', 'ISO-8859-1'), + 'nsv' => array ('nsv', 'ISO-8859-1'), + 'ogg' => array ('vorbiscomment', 'UTF-8'), + 'png' => array ('png', 'UTF-8'), + 'tiff' => array ('tiff', 'ISO-8859-1'), + 'quicktime' => array ('quicktime', 'ISO-8859-1'), + 'real' => array ('real', 'ISO-8859-1'), + 'vqf' => array ('vqf', 'ISO-8859-1'), + 'zip' => array ('zip', 'ISO-8859-1'), + 'riff' => array ('riff', 'ISO-8859-1'), + 'lyrics3' => array ('lyrics3', 'ISO-8859-1'), + 'id3v1' => array ('id3v1', ''), // change below - cannot assign variable to static array + 'id3v2' => array ('id3v2', 'UTF-8'), // module converts all frames to UTF-8 + 'ape' => array ('ape', 'UTF-8') + ); + $tags['id3v1'][1] = $this->encoding_id3v1; + + // Loop thru tags array + foreach ($tags as $comment_name => $tag_name_encoding_array) { + list($tag_name, $encoding) = $tag_name_encoding_array; + + // Fill in default encoding type if not already present + @$this->info[$comment_name] and $this->info[$comment_name]['encoding'] = $encoding; + + // Copy comments if key name set + if (@$this->info[$comment_name]['comments']) { + + foreach ($this->info[$comment_name]['comments'] as $tag_key => $value_array) { + foreach ($value_array as $key => $value) { + if (strlen(trim($value)) > 0) { + $this->info['tags'][$tag_name][trim($tag_key)][] = $value; // do not trim!! Unicode characters will get mangled if trailing nulls are removed! + } + } + + } + + if (!@$this->info['tags'][$tag_name]) { + // comments are set but contain nothing but empty strings, so skip + continue; + } + + $this->CharConvert($this->info['tags'][$tag_name], $encoding); + } + } + + + // Merge comments from ['tags'] into common ['comments'] + if (@$this->info['tags']) { + + foreach ($this->info['tags'] as $tag_type => $tag_array) { + + foreach ($tag_array as $tag_name => $tagdata) { + + foreach ($tagdata as $key => $value) { + + if (!empty($value)) { + + if (empty($this->info['comments'][$tag_name])) { + + // fall through and append value + } + elseif ($tag_type == 'id3v1') { + + $new_value_length = strlen(trim($value)); + foreach ($this->info['comments'][$tag_name] as $existing_key => $existing_value) { + $old_value_length = strlen(trim($existing_value)); + if (($new_value_length <= $old_value_length) && (substr($existing_value, 0, $new_value_length) == trim($value))) { + // new value is identical but shorter-than (or equal-length to) one already in comments - skip + break 2; + } + } + } + else { + + $new_value_length = strlen(trim($value)); + foreach ($this->info['comments'][$tag_name] as $existing_key => $existing_value) { + $old_value_length = strlen(trim($existing_value)); + if (($new_value_length > $old_value_length) && (substr(trim($value), 0, strlen($existing_value)) == $existing_value)) { + $this->info['comments'][$tag_name][$existing_key] = trim($value); + break 2; + } + } + } + + if (empty($this->info['comments'][$tag_name]) || !in_array(trim($value), $this->info['comments'][$tag_name])) { + $this->info['comments'][$tag_name][] = trim($value); + } + } + } + } + } + } + + return true; + } +} + + +abstract class getid3_handler +{ + + protected $getid3; // pointer + + protected $data_string_flag = false; // analyzing filepointer or string + protected $data_string; // string to analyze + protected $data_string_position = 0; // seek position in string + + + public function __construct(getID3 $getid3) { + + $this->getid3 = $getid3; + } + + + // Analyze from file pointer + abstract public function Analyze(); + + + + // Analyze from string instead + public function AnalyzeString(&$string) { + + // Enter string mode + $this->data_string_flag = true; + $this->data_string = $string; + + // Save info + $saved_avdataoffset = $this->getid3->info['avdataoffset']; + $saved_avdataend = $this->getid3->info['avdataend']; + $saved_filesize = $this->getid3->info['filesize']; + + // Reset some info + $this->getid3->info['avdataoffset'] = 0; + $this->getid3->info['avdataend'] = $this->getid3->info['filesize'] = strlen($string); + + // Analyze + $this->Analyze(); + + // Restore some info + $this->getid3->info['avdataoffset'] = $saved_avdataoffset; + $this->getid3->info['avdataend'] = $saved_avdataend; + $this->getid3->info['filesize'] = $saved_filesize; + + // Exit string mode + $this->data_string_flag = false; + } + + + protected function ftell() { + + if ($this->data_string_flag) { + return $this->data_string_position; + } + return ftell($this->getid3->fp); + } + + + protected function fread($bytes) { + + if ($this->data_string_flag) { + $this->data_string_position += $bytes; + return substr($this->data_string, $this->data_string_position - $bytes, $bytes); + } + return fread($this->getid3->fp, $bytes); + } + + + protected function fseek($bytes, $whence = SEEK_SET) { + + if ($this->data_string_flag) { + switch ($whence) { + case SEEK_SET: + $this->data_string_position = $bytes; + return; + + case SEEK_CUR: + $this->data_string_position += $bytes; + return; + + case SEEK_END: + $this->data_string_position = strlen($this->data_string) + $bytes; + return; + } + } + return fseek($this->getid3->fp, $bytes, $whence); + } + +} + + + + +abstract class getid3_handler_write +{ + protected $filename; + protected $user_abort; + + private $fp_lock; + private $owner; + private $group; + private $perms; + + + public function __construct($filename) { + + if (!file_exists($filename)) { + throw new getid3_exception('File does not exist: "' . $filename . '"'); + } + + if (!is_writeable($filename)) { + throw new getid3_exception('File is not writeable: "' . $filename . '"'); + } + + if (!is_writeable(dirname($filename))) { + throw new getid3_exception('Directory is not writeable: ' . dirname($filename) . ' (need to write lock file).'); + } + + $this->user_abort = ignore_user_abort(true); + + $this->fp_lock = fopen($filename . '.getid3.lock', 'w'); + flock($this->fp_lock, LOCK_EX); + + $this->filename = $filename; + } + + + public function __destruct() { + + flock($this->fp_lock, LOCK_UN); + fclose($this->fp_lock); + unlink($this->filename . '.getid3.lock'); + + ignore_user_abort($this->user_abort); + } + + + protected function save_permissions() { + + $this->owner = fileowner($this->filename); + $this->group = filegroup($this->filename); + $this->perms = fileperms($this->filename); + } + + + protected function restore_permissions() { + + @chown($this->filename, $this->owner); + @chgrp($this->filename, $this->group); + @chmod($this->filename, $this->perms); + } + + + abstract public function read(); + + abstract public function write(); + + abstract public function remove(); + +} + + + + +class getid3_exception extends Exception +{ + public $message; + +} + + + + +class getid3_lib +{ + + // Convert Little Endian byte string to int - max 32 bits + public static function LittleEndian2Int($byte_word, $signed = false) { + + return getid3_lib::BigEndian2Int(strrev($byte_word), $signed); + } + + + + // Convert number to Little Endian byte string + public static function LittleEndian2String($number, $minbytes=1, $synchsafe=false) { + $intstring = ''; + while ($number > 0) { + if ($synchsafe) { + $intstring = $intstring.chr($number & 127); + $number >>= 7; + } else { + $intstring = $intstring.chr($number & 255); + $number >>= 8; + } + } + return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT); + } + + + + // Convert Big Endian byte string to int - max 32 bits + public static function BigEndian2Int($byte_word, $signed = false) { + + $int_value = 0; + $byte_wordlen = strlen($byte_word); + + for ($i = 0; $i < $byte_wordlen; $i++) { + $int_value += ord($byte_word{$i}) * pow(256, ($byte_wordlen - 1 - $i)); + } + + if ($signed) { + $sign_mask_bit = 0x80 << (8 * ($byte_wordlen - 1)); + if ($int_value & $sign_mask_bit) { + $int_value = 0 - ($int_value & ($sign_mask_bit - 1)); + } + } + + return $int_value; + } + + + + // Convert Big Endian byte sybc safe string to int - max 32 bits + public static function BigEndianSyncSafe2Int($byte_word) { + + $int_value = 0; + $byte_wordlen = strlen($byte_word); + + // disregard MSB, effectively 7-bit bytes + for ($i = 0; $i < $byte_wordlen; $i++) { + $int_value = $int_value | (ord($byte_word{$i}) & 0x7F) << (($byte_wordlen - 1 - $i) * 7); + } + return $int_value; + } + + + + // Convert Big Endian byte string to bit string + public static function BigEndian2Bin($byte_word) { + + $bin_value = ''; + $byte_wordlen = strlen($byte_word); + for ($i = 0; $i < $byte_wordlen; $i++) { + $bin_value .= str_pad(decbin(ord($byte_word{$i})), 8, '0', STR_PAD_LEFT); + } + return $bin_value; + } + + + + public static function BigEndian2Float($byte_word) { + + // 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 + + $bit_word = getid3_lib::BigEndian2Bin($byte_word); + if (!$bit_word) { + return 0; + } + $sign_bit = $bit_word{0}; + + switch (strlen($byte_word) * 8) { + case 32: + $exponent_bits = 8; + $fraction_bits = 23; + break; + + case 64: + $exponent_bits = 11; + $fraction_bits = 52; + break; + + case 80: + // 80-bit Apple SANE format + // http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/ + $exponent_string = substr($bit_word, 1, 15); + $is_normalized = intval($bit_word{16}); + $fraction_string = substr($bit_word, 17, 63); + $exponent = pow(2, getid3_lib::Bin2Dec($exponent_string) - 16383); + $fraction = $is_normalized + getid3_lib::DecimalBinary2Float($fraction_string); + $float_value = $exponent * $fraction; + if ($sign_bit == '1') { + $float_value *= -1; + } + return $float_value; + break; + + default: + return false; + break; + } + $exponent_string = substr($bit_word, 1, $exponent_bits); + $fraction_string = substr($bit_word, $exponent_bits + 1, $fraction_bits); + $exponent = bindec($exponent_string); + $fraction = bindec($fraction_string); + + if (($exponent == (pow(2, $exponent_bits) - 1)) && ($fraction != 0)) { + // Not a Number + $float_value = false; + } elseif (($exponent == (pow(2, $exponent_bits) - 1)) && ($fraction == 0)) { + if ($sign_bit == '1') { + $float_value = '-infinity'; + } else { + $float_value = '+infinity'; + } + } elseif (($exponent == 0) && ($fraction == 0)) { + if ($sign_bit == '1') { + $float_value = -0; + } else { + $float_value = 0; + } + $float_value = ($sign_bit ? 0 : -0); + } elseif (($exponent == 0) && ($fraction != 0)) { + // These are 'unnormalized' values + $float_value = pow(2, (-1 * (pow(2, $exponent_bits - 1) - 2))) * getid3_lib::DecimalBinary2Float($fraction_string); + if ($sign_bit == '1') { + $float_value *= -1; + } + } elseif ($exponent != 0) { + $float_value = pow(2, ($exponent - (pow(2, $exponent_bits - 1) - 1))) * (1 + getid3_lib::DecimalBinary2Float($fraction_string)); + if ($sign_bit == '1') { + $float_value *= -1; + } + } + return (float) $float_value; + } + + + + public static function LittleEndian2Float($byte_word) { + + return getid3_lib::BigEndian2Float(strrev($byte_word)); + } + + + + public static function DecimalBinary2Float($binary_numerator) { + $numerator = bindec($binary_numerator); + $denominator = bindec('1'.str_repeat('0', strlen($binary_numerator))); + return ($numerator / $denominator); + } + + + public static function PrintHexBytes($string, $hex=true, $spaces=true, $html_safe=true) { + + $return_string = ''; + for ($i = 0; $i < strlen($string); $i++) { + if ($hex) { + $return_string .= str_pad(dechex(ord($string{$i})), 2, '0', STR_PAD_LEFT); + } else { + $return_string .= ' '.(ereg("[\x20-\x7E]", $string{$i}) ? $string{$i} : ''); + } + if ($spaces) { + $return_string .= ' '; + } + } + if ($html_safe) { + $return_string = htmlentities($return_string); + } + return $return_string; + } + + + + // Process header data string - read several values with algorithm and add to target + // algorithm is one one the getid3_lib::Something2Something() function names + // parts_array is index => length - $target[index] = algorithm(substring(data)) + // - OR just substring(data) if length is negative! + // indexes == 'IGNORE**' are ignored + + public static function ReadSequence($algorithm, &$target, &$data, $offset, $parts_array) { + + // Loop thru $parts_array + foreach ($parts_array as $target_string => $length) { + + // Add to target + if (!strstr($target_string, 'IGNORE')) { + + // substr(....length) + if ($length < 0) { + $target[$target_string] = substr($data, $offset, -$length); + } + + // algorithm(substr(...length)) + else { + $target[$target_string] = getid3_lib::$algorithm(substr($data, $offset, $length)); + } + } + + // Move pointer + $offset += abs($length); + } + } + +} + + + +class getid3_lib_replaygain +{ + + public static function NameLookup($name_code) { + + static $lookup = array ( + 0 => 'not set', + 1 => 'Track Gain Adjustment', + 2 => 'Album Gain Adjustment' + ); + + return @$lookup[$name_code]; + } + + + + public static function OriginatorLookup($originator_code) { + + static $lookup = array ( + 0 => 'unspecified', + 1 => 'pre-set by artist/producer/mastering engineer', + 2 => 'set by user', + 3 => 'determined automatically' + ); + + return @$lookup[$originator_code]; + } + + + + public static function AdjustmentLookup($raw_adjustment, $sign_bit) { + + return (float)$raw_adjustment / 10 * ($sign_bit == 1 ? -1 : 1); + } + + + + public static function GainString($name_code, $originator_code, $replaygain) { + + $sign_bit = $replaygain < 0 ? 1 : 0; + + $stored_replaygain = intval(round($replaygain * 10)); + $gain_string = str_pad(decbin($name_code), 3, '0', STR_PAD_LEFT); + $gain_string .= str_pad(decbin($originator_code), 3, '0', STR_PAD_LEFT); + $gain_string .= $sign_bit; + $gain_string .= str_pad(decbin($stored_replaygain), 9, '0', STR_PAD_LEFT); + + return $gain_string; + } + +} + + + + +?>
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