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-rw-r--r--getid3/getid3.php1397
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diff --git a/getid3/getid3.php b/getid3/getid3.php
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+<?php
+/////////////////////////////////////////////////////////////////
+/// getID3() by James Heinrich <info@getid3.org> //
+// available at http://getid3.sourceforge.net //
+// or http://www.getid3.org //
+/////////////////////////////////////////////////////////////////
+// //
+// Please see readme.txt for more information //
+// ///
+/////////////////////////////////////////////////////////////////
+
+// Defines
+define('GETID3_VERSION', '1.7.9-20090308');
+define('GETID3_FREAD_BUFFER_SIZE', 16384); // read buffer size in bytes
+
+
+
+class getID3
+{
+ // public: Settings
+ var $encoding = 'ISO-8859-1'; // CASE SENSITIVE! - i.e. (must be supported by iconv())
+ // Examples: ISO-8859-1 UTF-8 UTF-16 UTF-16BE
+
+ var $encoding_id3v1 = 'ISO-8859-1'; // Should always be 'ISO-8859-1', but some tags may be written in other encodings such as 'EUC-CN'
+
+ var $tempdir = '*'; // default '*' should use system temp dir
+
+ // public: Optional tag checks - disable for speed.
+ var $option_tag_id3v1 = true; // Read and process ID3v1 tags
+ var $option_tag_id3v2 = true; // Read and process ID3v2 tags
+ var $option_tag_lyrics3 = true; // Read and process Lyrics3 tags
+ var $option_tag_apetag = true; // Read and process APE tags
+ var $option_tags_process = true; // Copy tags to root key 'tags' and encode to $this->encoding
+ var $option_tags_html = true; // Copy tags to root key 'tags_html' properly translated from various encodings to HTML entities
+
+ // public: Optional tag/comment calucations
+ var $option_extra_info = true; // Calculate additional info such as bitrate, channelmode etc
+
+ // public: Optional calculations
+ var $option_md5_data = false; // Get MD5 sum of data part - slow
+ var $option_md5_data_source = false; // Use MD5 of source file if availble - only FLAC and OptimFROG
+ var $option_sha1_data = false; // Get SHA1 sum of data part - slow
+ var $option_max_2gb_check = true; // Check whether file is larger than 2 Gb and thus not supported by PHP
+
+ // private
+ var $filename;
+
+
+ // public: constructor
+ function getID3()
+ {
+
+ $this->startup_error = '';
+ $this->startup_warning = '';
+
+ // Check for PHP version >= 4.2.0
+ if (phpversion() < '4.2.0') {
+ $this->startup_error .= 'getID3() requires PHP v4.2.0 or higher - you are running v'.phpversion();
+ }
+
+ // Check memory
+ $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) {
+ // memory limits probably disabled
+ } elseif ($memory_limit <= 3145728) {
+ $this->startup_error .= 'PHP has less than 3MB available memory and will very likely run out. Increase memory_limit in php.ini';
+ } elseif ($memory_limit <= 12582912) {
+ $this->startup_warning .= 'PHP has less than 12MB available memory and might run out if all modules are loaded. Increase memory_limit in php.ini';
+ }
+
+ // Check safe_mode off
+ if ((bool) ini_get('safe_mode')) {
+ $this->warning('WARNING: Safe mode is on, shorten support disabled, md5data/sha1data for ogg vorbis disabled, ogg vorbos/flac tag writing disabled.');
+ }
+
+
+ // define a constant rather than looking up every time it is needed
+ if (!defined('GETID3_OS_ISWINDOWS')) {
+ if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') {
+ define('GETID3_OS_ISWINDOWS', true);
+ } else {
+ define('GETID3_OS_ISWINDOWS', false);
+ }
+ }
+
+ // Get base path of getID3() - ONCE
+ if (!defined('GETID3_INCLUDEPATH')) {
+ foreach (get_included_files() as $key => $val) {
+ if (basename($val) == 'getid3.php') {
+ define('GETID3_INCLUDEPATH', dirname($val).DIRECTORY_SEPARATOR);
+ break;
+ }
+ }
+ }
+
+ // Load support library
+ if (!include_once(GETID3_INCLUDEPATH.'getid3.lib.php')) {
+ $this->startup_error .= 'getid3.lib.php is missing or corrupt';
+ }
+
+
+ // Needed for Windows only:
+ // Define locations of helper applications for Shorten, VorbisComment, MetaFLAC
+ // as well as other helper functions such as head, tail, md5sum, etc
+ // IMPORTANT: This path cannot have spaces in it. If neccesary, use the 8dot3 equivalent
+ // ie for "C:/Program Files/Apache/" put "C:/PROGRA~1/APACHE/"
+ // IMPORTANT: This path must include the trailing slash
+ if (GETID3_OS_ISWINDOWS && !defined('GETID3_HELPERAPPSDIR')) {
+
+ $helperappsdir = GETID3_INCLUDEPATH.'..'.DIRECTORY_SEPARATOR.'helperapps'; // must not have any space in this path
+
+ if (!is_dir($helperappsdir)) {
+ $this->startup_error .= '"'.$helperappsdir.'" cannot be defined as GETID3_HELPERAPPSDIR because it does not exist';
+ } elseif (strpos(realpath($helperappsdir), ' ') !== false) {
+ $DirPieces = explode(DIRECTORY_SEPARATOR, realpath($helperappsdir));
+ foreach ($DirPieces as $key => $value) {
+ if ((strpos($value, '.') !== false) && (strpos($value, ' ') === false)) {
+ if (strpos($value, '.') > 8) {
+ $value = substr($value, 0, 6).'~1';
+ }
+ } elseif ((strpos($value, ' ') !== false) || strlen($value) > 8) {
+ $value = substr($value, 0, 6).'~1';
+ }
+ $DirPieces[$key] = strtoupper($value);
+ }
+ $this->startup_error .= 'GETID3_HELPERAPPSDIR must not have any spaces in it - use 8dot3 naming convention if neccesary (on this server that would be something like "'.implode(DIRECTORY_SEPARATOR, $DirPieces).'" - NOTE: this may or may not be the actual 8.3 equivalent of "'.$helperappsdir.'", please double-check). You can run "dir /x" from the commandline to see the correct 8.3-style names.';
+ }
+ define('GETID3_HELPERAPPSDIR', realpath($helperappsdir).DIRECTORY_SEPARATOR);
+ }
+
+ }
+
+
+ // public: setOption
+ function setOption($optArray) {
+ if (!is_array($optArray) || empty($optArray)) {
+ return false;
+ }
+ foreach ($optArray as $opt => $val) {
+ //if (isset($this, $opt) === false) {
+ if (isset($this->$opt) === false) {
+ continue;
+ }
+ $this->$opt = $val;
+ }
+ return true;
+ }
+
+
+ // public: analyze file - replaces GetAllFileInfo() and GetTagOnly()
+ function analyze($filename) {
+
+ if (!empty($this->startup_error)) {
+ return $this->error($this->startup_error);
+ }
+ if (!empty($this->startup_warning)) {
+ $this->warning($this->startup_warning);
+ }
+
+ // init result array and set parameters
+ $this->info = array();
+ $this->info['GETID3_VERSION'] = GETID3_VERSION;
+
+ // Check encoding/iconv support
+ if (!function_exists('iconv') && !in_array($this->encoding, array('ISO-8859-1', 'UTF-8', 'UTF-16LE', 'UTF-16BE', 'UTF-16'))) {
+ $errormessage = 'iconv() support is needed for encodings other than ISO-8859-1, UTF-8, UTF-16LE, UTF16-BE, UTF-16. ';
+ if (GETID3_OS_ISWINDOWS) {
+ $errormessage .= 'PHP does not have iconv() support. Please enable php_iconv.dll in php.ini, and copy iconv.dll from c:/php/dlls to c:/windows/system32';
+ } else {
+ $errormessage .= 'PHP is not compiled with iconv() support. Please recompile with the --with-iconv switch';
+ }
+ return $this->error($errormessage);
+ }
+
+ // Disable magic_quotes_runtime, if neccesary
+ $old_magic_quotes_runtime = get_magic_quotes_runtime(); // store current setting of magic_quotes_runtime
+ if ($old_magic_quotes_runtime) {
+ set_magic_quotes_runtime(0); // turn off magic_quotes_runtime
+ if (get_magic_quotes_runtime()) {
+ return $this->error('Could not disable magic_quotes_runtime - getID3() cannot work properly with this setting enabled');
+ }
+ }
+
+ // remote files not supported
+ if (preg_match('/^(ht|f)tp:\/\//', $filename)) {
+ return $this->error('Remote files are not supported in this version of getID3() - please copy the file locally first');
+ }
+
+ $filename = str_replace('/', DIRECTORY_SEPARATOR, $filename);
+ $filename = preg_replace('#'.preg_quote(DIRECTORY_SEPARATOR).'{2,}#', DIRECTORY_SEPARATOR, $filename);
+
+ // open local file
+ if (file_exists($filename) && ($fp = @fopen($filename, 'rb'))) {
+ // great
+ } else {
+ return $this->error('Could not open file "'.$filename.'"');
+ }
+
+ // set parameters
+ $this->info['filesize'] = filesize($filename);
+
+ // option_max_2gb_check
+ if ($this->option_max_2gb_check) {
+ // PHP doesn't support integers larger than 31-bit (~2GB)
+ // filesize() simply returns (filesize % (pow(2, 32)), no matter the actual filesize
+ // ftell() returns 0 if seeking to the end is beyond the range of unsigned integer
+ fseek($fp, 0, SEEK_END);
+ if ((($this->info['filesize'] != 0) && (ftell($fp) == 0)) ||
+ ($this->info['filesize'] < 0) ||
+ (ftell($fp) < 0)) {
+ $real_filesize = false;
+ if (GETID3_OS_ISWINDOWS) {
+ $commandline = 'dir /-C "'.str_replace('/', DIRECTORY_SEPARATOR, $filename).'"';
+ $dir_output = `$commandline`;
+ if (eregi('1 File\(s\)[ ]+([0-9]+) bytes', $dir_output, $matches)) {
+ $real_filesize = (float) $matches[1];
+ }
+ } else {
+ $commandline = 'ls -o -g -G --time-style=long-iso '.escapeshellarg($filename);
+ $dir_output = `$commandline`;
+ if (eregi('([0-9]+) ([0-9]{4}-[0-9]{2}\-[0-9]{2} [0-9]{2}:[0-9]{2}) '.preg_quote($filename).'$', $dir_output, $matches)) {
+ $real_filesize = (float) $matches[1];
+ }
+ }
+ if ($real_filesize === false) {
+ unset($this->info['filesize']);
+ fclose($fp);
+ return $this->error('File is most likely larger than 2GB and is not supported by PHP');
+ } elseif ($real_filesize < pow(2, 31)) {
+ unset($this->info['filesize']);
+ fclose($fp);
+ return $this->error('PHP seems to think the file is larger than 2GB, but filesystem reports it as '.number_format($real_filesize, 3).'GB, please report to info@getid3.org');
+ }
+ $this->info['filesize'] = $real_filesize;
+ $this->error('File is larger than 2GB (filesystem reports it as '.number_format($real_filesize, 3).'GB) and is not properly supported by PHP.');
+ }
+ }
+
+ // set more parameters
+ $this->info['avdataoffset'] = 0;
+ $this->info['avdataend'] = $this->info['filesize'];
+ $this->info['fileformat'] = ''; // filled in later
+ $this->info['audio']['dataformat'] = ''; // filled in later, unset if not used
+ $this->info['video']['dataformat'] = ''; // filled in later, unset if not used
+ $this->info['tags'] = array(); // filled in later, unset if not used
+ $this->info['error'] = array(); // filled in later, unset if not used
+ $this->info['warning'] = array(); // filled in later, unset if not used
+ $this->info['comments'] = array(); // filled in later, unset if not used
+ $this->info['encoding'] = $this->encoding; // required by id3v2 and iso modules - can be unset at the end if desired
+
+ // set redundant parameters - might be needed in some include file
+ $this->info['filename'] = basename($filename);
+ $this->info['filepath'] = str_replace('\\', '/', realpath(dirname($filename)));
+ $this->info['filenamepath'] = $this->info['filepath'].'/'.$this->info['filename'];
+
+
+ // handle ID3v2 tag - done first - already at beginning of file
+ // ID3v2 detection (even if not parsing) is always done otherwise fileformat is much harder to detect
+ if ($this->option_tag_id3v2) {
+
+ $GETID3_ERRORARRAY = &$this->info['warning'];
+ if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, false)) {
+ $tag = new getid3_id3v2($fp, $this->info);
+ unset($tag);
+ }
+
+ } else {
+
+ fseek($fp, 0, SEEK_SET);
+ $header = fread($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});
+ $this->info['id3v2']['headerlength'] = getid3_lib::BigEndian2Int(substr($header, 6, 4), 1) + 10; // length of ID3v2 tag in 10-byte header doesn't include 10-byte header length
+
+ $this->info['id3v2']['tag_offset_start'] = 0;
+ $this->info['id3v2']['tag_offset_end'] = $this->info['id3v2']['tag_offset_start'] + $this->info['id3v2']['headerlength'];
+ $this->info['avdataoffset'] = $this->info['id3v2']['tag_offset_end'];
+ }
+
+ }
+
+
+ // handle ID3v1 tag
+ if ($this->option_tag_id3v1) {
+ if (!@include_once(GETID3_INCLUDEPATH.'module.tag.id3v1.php')) {
+ return $this->error('module.tag.id3v1.php is missing - you may disable option_tag_id3v1.');
+ }
+ $tag = new getid3_id3v1($fp, $this->info);
+ unset($tag);
+ }
+
+ // handle APE tag
+ if ($this->option_tag_apetag) {
+ if (!@include_once(GETID3_INCLUDEPATH.'module.tag.apetag.php')) {
+ return $this->error('module.tag.apetag.php is missing - you may disable option_tag_apetag.');
+ }
+ $tag = new getid3_apetag($fp, $this->info);
+ unset($tag);
+ }
+
+ // handle lyrics3 tag
+ if ($this->option_tag_lyrics3) {
+ if (!@include_once(GETID3_INCLUDEPATH.'module.tag.lyrics3.php')) {
+ return $this->error('module.tag.lyrics3.php is missing - you may disable option_tag_lyrics3.');
+ }
+ $tag = new getid3_lyrics3($fp, $this->info);
+ unset($tag);
+ }
+
+ // read 32 kb file data
+ fseek($fp, $this->info['avdataoffset'], SEEK_SET);
+ $formattest = fread($fp, 32774);
+
+ // determine format
+ $determined_format = $this->GetFileFormat($formattest, $filename);
+
+ // unable to determine file format
+ if (!$determined_format) {
+ fclose($fp);
+ return $this->error('unable to determine file format');
+ }
+
+ // check for illegal ID3 tags
+ if (isset($determined_format['fail_id3']) && (in_array('id3v1', $this->info['tags']) || in_array('id3v2', $this->info['tags']))) {
+ if ($determined_format['fail_id3'] === 'ERROR') {
+ fclose($fp);
+ return $this->error('ID3 tags not allowed on this file type.');
+ } elseif ($determined_format['fail_id3'] === 'WARNING') {
+ $this->info['warning'][] = 'ID3 tags not allowed on this file type.';
+ }
+ }
+
+ // check for illegal APE tags
+ if (isset($determined_format['fail_ape']) && in_array('ape', $this->info['tags'])) {
+ if ($determined_format['fail_ape'] === 'ERROR') {
+ fclose($fp);
+ return $this->error('APE tags not allowed on this file type.');
+ } elseif ($determined_format['fail_ape'] === 'WARNING') {
+ $this->info['warning'][] = 'APE tags not allowed on this file type.';
+ }
+ }
+
+ // set mime type
+ $this->info['mime_type'] = $determined_format['mime_type'];
+
+ // supported format signature pattern detected, but module deleted
+ if (!file_exists(GETID3_INCLUDEPATH.$determined_format['include'])) {
+ fclose($fp);
+ return $this->error('Format not supported, module "'.$determined_format['include'].'" was removed.');
+ }
+
+ // module requires iconv support
+ if (!function_exists('iconv') && @$determined_format['iconv_req']) {
+ return $this->error('iconv support is required for this module ('.$determined_format['include'].').');
+ }
+
+ // include module
+ include_once(GETID3_INCLUDEPATH.$determined_format['include']);
+
+ // instantiate module class
+ $class_name = 'getid3_'.$determined_format['module'];
+ if (!class_exists($class_name)) {
+ return $this->error('Format not supported, module "'.$determined_format['include'].'" is corrupt.');
+ }
+ if (isset($determined_format['option'])) {
+ $class = new $class_name($fp, $this->info, $determined_format['option']);
+ } else {
+ $class = new $class_name($fp, $this->info);
+ }
+ unset($class);
+
+ // close file
+ fclose($fp);
+
+ // process all tags - copy to 'tags' and convert charsets
+ if ($this->option_tags_process) {
+ $this->HandleAllTags();
+ }
+
+ // perform more calculations
+ if ($this->option_extra_info) {
+ $this->ChannelsBitratePlaytimeCalculations();
+ $this->CalculateCompressionRatioVideo();
+ $this->CalculateCompressionRatioAudio();
+ $this->CalculateReplayGain();
+ $this->ProcessAudioStreams();
+ }
+
+ // get the MD5 sum of the audio/video portion of the file - without ID3/APE/Lyrics3/etc header/footer tags
+ if ($this->option_md5_data) {
+ // do not cald md5_data if md5_data_source is present - set by flac only - future MPC/SV8 too
+ if (!$this->option_md5_data_source || empty($this->info['md5_data_source'])) {
+ $this->getHashdata('md5');
+ }
+ }
+
+ // get the SHA1 sum of the audio/video portion of the file - without ID3/APE/Lyrics3/etc header/footer tags
+ if ($this->option_sha1_data) {
+ $this->getHashdata('sha1');
+ }
+
+ // remove undesired keys
+ $this->CleanUp();
+
+ // restore magic_quotes_runtime setting
+ set_magic_quotes_runtime($old_magic_quotes_runtime);
+
+ // return info array
+ return $this->info;
+ }
+
+
+ // private: error handling
+ function error($message) {
+
+ $this->CleanUp();
+
+ $this->info['error'][] = $message;
+ return $this->info;
+ }
+
+
+ // private: warning handling
+ function warning($message) {
+ $this->info['warning'][] = $message;
+ return true;
+ }
+
+
+ // private: CleanUp
+ function CleanUp() {
+
+ // remove possible empty keys
+ $AVpossibleEmptyKeys = array('dataformat', 'bits_per_sample', 'encoder_options', 'streams', 'bitrate');
+ foreach ($AVpossibleEmptyKeys as $dummy => $key) {
+ if (empty($this->info['audio'][$key]) && isset($this->info['audio'][$key])) {
+ unset($this->info['audio'][$key]);
+ }
+ if (empty($this->info['video'][$key]) && isset($this->info['video'][$key])) {
+ unset($this->info['video'][$key]);
+ }
+ }
+
+ // remove empty root keys
+ if (!empty($this->info)) {
+ foreach ($this->info as $key => $value) {
+ if (empty($this->info[$key]) && ($this->info[$key] !== 0) && ($this->info[$key] !== '0')) {
+ unset($this->info[$key]);
+ }
+ }
+ }
+
+ // remove meaningless entries from unknown-format files
+ if (empty($this->info['fileformat'])) {
+ if (isset($this->info['avdataoffset'])) {
+ unset($this->info['avdataoffset']);
+ }
+ if (isset($this->info['avdataend'])) {
+ unset($this->info['avdataend']);
+ }
+ }
+ }
+
+
+ // return array containing information about all supported formats
+ function GetFileFormatArray() {
+ static $format_info = array();
+ if (empty($format_info)) {
+ $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',
+ 'option' => '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',
+ 'option' => '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',
+ ),
+
+ // DSS - audio - Digital Speech Standard
+ 'dss' => array(
+ 'pattern' => '^[\x02]dss',
+ 'group' => 'audio',
+ 'module' => 'dss',
+ 'mime_type' => 'application/octet-stream',
+ ),
+
+ // 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' => 'flac',
+ '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',
+ ),
+
+// has been known to produce false matches in random files (e.g. JPEGs), leave out until more precise matching available
+// // MOD - audio - MODule (assorted sub-formats)
+// 'mod' => array(
+// 'pattern' => '^.{1080}(M\\.K\\.|M!K!|FLT4|FLT8|[5-9]CHN|[1-3][0-9]CH)',
+// 'group' => 'audio',
+// 'module' => 'mod',
+// 'option' => 'mod',
+// 'mime_type' => 'audio/mod',
+// ),
+
+ // MOD - audio - MODule (Impulse Tracker)
+ 'it' => array(
+ 'pattern' => '^IMPM',
+ 'group' => 'audio',
+ 'module' => 'mod',
+ 'option' => 'it',
+ 'mime_type' => 'audio/it',
+ ),
+
+ // MOD - audio - MODule (eXtended Module, various sub-formats)
+ 'xm' => array(
+ 'pattern' => '^Extended Module',
+ 'group' => 'audio',
+ 'module' => 'mod',
+ 'option' => 'xm',
+ 'mime_type' => 'audio/xm',
+ ),
+
+ // MOD - audio - MODule (ScreamTracker)
+ 's3m' => array(
+ 'pattern' => '^.{44}SCRM',
+ 'group' => 'audio',
+ 'module' => 'mod',
+ 'option' => 's3m',
+ 'mime_type' => 'audio/s3m',
+ ),
+
+ // MPC - audio - Musepack / MPEGplus
+ 'mpc' => array(
+ 'pattern' => '^(MPCK|MP\+|[\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',
+ 'mime_type' => 'audio/x-musepack',
+ ),
+
+ // 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+)
+ 'wv' => 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',
+ 'iconv_req' => false,
+ ),
+
+ // BINK - audio/video - Bink / Smacker
+ 'bink' => array(
+ 'pattern' => '^(BIK|SMK)',
+ 'group' => 'audio-video',
+ 'module' => 'bink',
+ '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',
+ 'group' => 'audio-video',
+ 'module' => 'matroska',
+ 'mime_type' => 'video/x-matroska', // may also be audio/x-matroska
+ ),
+
+ // 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, Ogg-FLAC, Speex, Ogg-Theora(*), Ogg-Tarkin(*))
+ 'ogg' => array(
+ 'pattern' => '^OggS',
+ 'group' => 'audio',
+ 'module' => 'ogg',
+ '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)
+ 'jpg' => array(
+ 'pattern' => '^\xFF\xD8\xFF',
+ 'group' => 'graphic',
+ 'module' => 'jpg',
+ '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 ',
+ 'group' => 'graphic',
+ 'module' => 'svg',
+ '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
+
+ // 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',
+ 'iconv_req' => false,
+ ),
+
+ // RAR - data - RAR compressed data
+ 'rar' => array(
+ 'pattern' => '^Rar\!',
+ 'group' => 'archive',
+ 'module' => 'rar',
+ 'mime_type' => 'application/octet-stream',
+ 'fail_id3' => 'ERROR',
+ 'fail_ape' => 'ERROR',
+ ),
+
+ // SZIP - audio/data - 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',
+ ),
+
+
+ // Misc other formats
+
+ // PAR2 - data - Parity Volume Set Specification 2.0
+ 'par2' => array (
+ 'pattern' => '^PAR2\x00PKT',
+ 'group' => 'misc',
+ 'module' => 'par2',
+ 'mime_type' => 'application/octet-stream',
+ 'fail_id3' => 'ERROR',
+ 'fail_ape' => 'ERROR',
+ ),
+
+ // PDF - data - Portable Document Format
+ 'pdf' => array(
+ 'pattern' => '^\x25PDF',
+ 'group' => 'misc',
+ 'module' => 'pdf',
+ 'mime_type' => 'application/pdf',
+ 'fail_id3' => 'ERROR',
+ 'fail_ape' => 'ERROR',
+ ),
+
+ // MSOFFICE - data - ZIP compressed data
+ 'msoffice' => array(
+ 'pattern' => '^\xD0\xCF\x11\xE0', // D0CF11E == DOCFILE == Microsoft Office Document
+ 'group' => 'misc',
+ 'module' => 'msoffice',
+ 'mime_type' => 'application/octet-stream',
+ 'fail_id3' => 'ERROR',
+ 'fail_ape' => 'ERROR',
+ ),
+ );
+ }
+
+ return $format_info;
+ }
+
+
+
+ function GetFileFormat(&$filedata, $filename='') {
+ // this function will determine the format of a file based on usually
+ // the first 2-4 bytes of the file (8 bytes for PNG, 16 bytes for JPG,
+ // and in the case of ISO CD image, 6 bytes offset 32kb from the start
+ // of the file).
+
+ // Identify file format - loop through $format_info and detect with reg expr
+ foreach ($this->GetFileFormatArray() as $format_name => $info) {
+ // Using preg_match() instead of ereg() - much faster
+ // The /s switch on preg_match() forces preg_match() NOT to treat
+ // newline (0x0A) characters as special chars but do a binary match
+ if (preg_match('/'.$info['pattern'].'/s', $filedata)) {
+ $info['include'] = 'module.'.$info['group'].'.'.$info['module'].'.php';
+ return $info;
+ }
+ }
+
+
+ if (preg_match('/\.mp[123a]$/i', $filename)) {
+ // Too many mp3 encoders on the market put gabage in front of mpeg files
+ // use assume format on these if format detection failed
+ $GetFileFormatArray = $this->GetFileFormatArray();
+ $info = $GetFileFormatArray['mp3'];
+ $info['include'] = 'module.'.$info['group'].'.'.$info['module'].'.php';
+ return $info;
+ }
+
+ return false;
+ }
+
+
+ // 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] = trim(getid3_lib::iconv_fallback($encoding, $this->encoding, $value));
+ }
+ }
+ }
+
+
+ function HandleAllTags() {
+
+ // key name => array (tag name, character encoding)
+ static $tags;
+ if (empty($tags)) {
+ $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' , $this->encoding_id3v1),
+ 'id3v2' => array('id3v2' , 'UTF-8'), // not according to the specs (every frame can have a different encoding), but getID3() force-converts all encodings to UTF-8
+ 'ape' => array('ape' , 'UTF-8')
+ );
+ }
+
+ // loop thru comments array
+ foreach ($tags as $comment_name => $tagname_encoding_array) {
+ list($tag_name, $encoding) = $tagname_encoding_array;
+
+ // fill in default encoding type if not already present
+ if (isset($this->info[$comment_name]) && !isset($this->info[$comment_name]['encoding'])) {
+ $this->info[$comment_name]['encoding'] = $encoding;
+ }
+
+ // copy comments if key name set
+ if (!empty($this->info[$comment_name]['comments'])) {
+
+ foreach ($this->info[$comment_name]['comments'] as $tag_key => $valuearray) {
+ foreach ($valuearray as $key => $value) {
+ if (strlen(trim($value)) > 0) {
+ $this->info['tags'][trim($tag_name)][trim($tag_key)][] = $value; // do not trim!! Unicode characters will get mangled if trailing nulls are removed!
+ }
+ }
+ }
+
+ if (!isset($this->info['tags'][$tag_name])) {
+ // comments are set but contain nothing but empty strings, so skip
+ continue;
+ }
+
+ if ($this->option_tags_html) {
+ foreach ($this->info['tags'][$tag_name] as $tag_key => $valuearray) {
+ foreach ($valuearray as $key => $value) {
+ if (is_string($value)) {
+ //$this->info['tags_html'][$tag_name][$tag_key][$key] = getid3_lib::MultiByteCharString2HTML($value, $encoding);
+ $this->info['tags_html'][$tag_name][$tag_key][$key] = str_replace('&#0;', '', getid3_lib::MultiByteCharString2HTML($value, $encoding));
+ } else {
+ $this->info['tags_html'][$tag_name][$tag_key][$key] = $value;
+ }
+ }
+ }
+ }
+
+ $this->CharConvert($this->info['tags'][$tag_name], $encoding); // only copy gets converted!
+ }
+
+ }
+ return true;
+ }
+
+
+ function getHashdata($algorithm) {
+ switch ($algorithm) {
+ case 'md5':
+ case 'sha1':
+ break;
+
+ default:
+ return $this->error('bad algorithm "'.$algorithm.'" in getHashdata()');
+ break;
+ }
+
+ if ((@$this->info['fileformat'] == 'ogg') && (@$this->info['audio']['dataformat'] == 'vorbis')) {
+
+ // We cannot get an identical md5_data value for Ogg files where the comments
+ // span more than 1 Ogg page (compared to the same audio data with smaller
+ // comments) using the normal getID3() method of MD5'ing the data between the
+ // end of the comments and the end of the file (minus any trailing tags),
+ // because the page sequence numbers of the pages that the audio data is on
+ // do not match. Under normal circumstances, where comments are smaller than
+ // the nominal 4-8kB page size, then this is not a problem, but if there are
+ // very large comments, the only way around it is to strip off the comment
+ // tags with vorbiscomment and MD5 that file.
+ // This procedure must be applied to ALL Ogg files, not just the ones with
+ // comments larger than 1 page, because the below method simply MD5's the
+ // whole file with the comments stripped, not just the portion after the
+ // comments block (which is the standard getID3() method.
+
+ // The above-mentioned problem of comments spanning multiple pages and changing
+ // page sequence numbers likely happens for OggSpeex and OggFLAC as well, but
+ // currently vorbiscomment only works on OggVorbis files.
+
+ if ((bool) ini_get('safe_mode')) {
+
+ $this->info['warning'][] = 'Failed making system call to vorbiscomment.exe - '.$algorithm.'_data is incorrect - error returned: PHP running in Safe Mode (backtick operator not available)';
+ $this->info[$algorithm.'_data'] = false;
+
+ } else {
+
+ // Prevent user from aborting script
+ $old_abort = ignore_user_abort(true);
+
+ // Create empty file
+ $empty = tempnam('*', 'getID3');
+ touch($empty);
+
+
+ // Use vorbiscomment to make temp file without comments
+ $temp = tempnam('*', 'getID3');
+ $file = $this->info['filenamepath'];
+
+ if (GETID3_OS_ISWINDOWS) {
+
+ if (file_exists(GETID3_HELPERAPPSDIR.'vorbiscomment.exe')) {
+
+ $commandline = '"'.GETID3_HELPERAPPSDIR.'vorbiscomment.exe" -w -c "'.$empty.'" "'.$file.'" "'.$temp.'"';
+ $VorbisCommentError = `$commandline`;
+
+ } else {
+
+ $VorbisCommentError = 'vorbiscomment.exe not found in '.GETID3_HELPERAPPSDIR;
+
+ }
+
+ } else {
+
+ $commandline = 'vorbiscomment -w -c "'.$empty.'" "'.$file.'" "'.$temp.'" 2>&1';
+ $commandline = 'vorbiscomment -w -c '.escapeshellarg($empty).' '.escapeshellarg($file).' '.escapeshellarg($temp).' 2>&1';
+ $VorbisCommentError = `$commandline`;
+
+ }
+
+ if (!empty($VorbisCommentError)) {
+
+ $this->info['warning'][] = 'Failed making system call to vorbiscomment(.exe) - '.$algorithm.'_data will be incorrect. If vorbiscomment is unavailable, please download from http://www.vorbis.com/download.psp and put in the getID3() directory. Error returned: '.$VorbisCommentError;
+ $this->info[$algorithm.'_data'] = false;
+
+ } else {
+
+ // Get hash of newly created file
+ switch ($algorithm) {
+ case 'md5':
+ $this->info[$algorithm.'_data'] = getid3_lib::md5_file($temp);
+ break;
+
+ case 'sha1':
+ $this->info[$algorithm.'_data'] = getid3_lib::sha1_file($temp);
+ break;
+ }
+ }
+
+ // Clean up
+ unlink($empty);
+ unlink($temp);
+
+ // Reset abort setting
+ ignore_user_abort($old_abort);
+
+ }
+
+ } else {
+
+ if (!empty($this->info['avdataoffset']) || (isset($this->info['avdataend']) && ($this->info['avdataend'] < $this->info['filesize']))) {
+
+ // get hash from part of file
+ $this->info[$algorithm.'_data'] = getid3_lib::hash_data($this->info['filenamepath'], $this->info['avdataoffset'], $this->info['avdataend'], $algorithm);
+
+ } else {
+
+ // get hash from whole file
+ switch ($algorithm) {
+ case 'md5':
+ $this->info[$algorithm.'_data'] = getid3_lib::md5_file($this->info['filenamepath']);
+ break;
+
+ case 'sha1':
+ $this->info[$algorithm.'_data'] = getid3_lib::sha1_file($this->info['filenamepath']);
+ break;
+ }
+ }
+
+ }
+ return true;
+ }
+
+
+ function ChannelsBitratePlaytimeCalculations() {
+
+ // set channelmode on audio
+ if (@$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
+ $CombinedBitrate = 0;
+ $CombinedBitrate += (isset($this->info['audio']['bitrate']) ? $this->info['audio']['bitrate'] : 0);
+ $CombinedBitrate += (isset($this->info['video']['bitrate']) ? $this->info['video']['bitrate'] : 0);
+ if (($CombinedBitrate > 0) && empty($this->info['bitrate'])) {
+ $this->info['bitrate'] = $CombinedBitrate;
+ }
+ //if ((isset($this->info['video']) && !isset($this->info['video']['bitrate'])) || (isset($this->info['audio']) && !isset($this->info['audio']['bitrate']))) {
+ // // for example, VBR MPEG video files cannot determine video bitrate:
+ // // should not set overall bitrate and playtime from audio bitrate only
+ // unset($this->info['bitrate']);
+ //}
+
+ // video bitrate undetermined, but calculable
+ if (isset($this->info['video']['dataformat']) && $this->info['video']['dataformat'] && (!isset($this->info['video']['bitrate']) || ($this->info['video']['bitrate'] == 0))) {
+ // if video bitrate not set
+ if (isset($this->info['audio']['bitrate']) && ($this->info['audio']['bitrate'] > 0) && ($this->info['audio']['bitrate'] == $this->info['bitrate'])) {
+ // AND if audio bitrate is set to same as overall bitrate
+ if (isset($this->info['playtime_seconds']) && ($this->info['playtime_seconds'] > 0)) {
+ // AND if playtime is set
+ if (isset($this->info['avdataend']) && isset($this->info['avdataoffset'])) {
+ // AND if AV data offset start/end is known
+ // THEN we can calculate the video bitrate
+ $this->info['bitrate'] = round((($this->info['avdataend'] - $this->info['avdataoffset']) * 8) / $this->info['playtime_seconds']);
+ $this->info['video']['bitrate'] = $this->info['bitrate'] - $this->info['audio']['bitrate'];
+ }
+ }
+ }
+ }
+
+ if ((!isset($this->info['playtime_seconds']) || ($this->info['playtime_seconds'] <= 0)) && !empty($this->info['bitrate'])) {
+ $this->info['playtime_seconds'] = (($this->info['avdataend'] - $this->info['avdataoffset']) * 8) / $this->info['bitrate'];
+ }
+
+ if (!isset($this->info['bitrate']) && !empty($this->info['playtime_seconds'])) {
+ $this->info['bitrate'] = (($this->info['avdataend'] - $this->info['avdataoffset']) * 8) / $this->info['playtime_seconds'];
+ }
+//echo '<pre>';
+//var_dump($this->info['bitrate']);
+//var_dump($this->info['audio']['bitrate']);
+//var_dump($this->info['video']['bitrate']);
+//echo '</pre>';
+ if (isset($this->info['bitrate']) && empty($this->info['audio']['bitrate']) && empty($this->info['video']['bitrate'])) {
+ if (isset($this->info['audio']['dataformat']) && empty($this->info['video']['resolution_x'])) {
+ // audio only
+ $this->info['audio']['bitrate'] = $this->info['bitrate'];
+ } elseif (isset($this->info['video']['resolution_x']) && empty($this->info['audio']['dataformat'])) {
+ // video only
+ $this->info['video']['bitrate'] = $this->info['bitrate'];
+ }
+ }
+
+ // Set playtime string
+ if (!empty($this->info['playtime_seconds']) && empty($this->info['playtime_string'])) {
+ $this->info['playtime_string'] = getid3_lib::PlaytimeString($this->info['playtime_seconds']);
+ }
+ }
+
+
+ function CalculateCompressionRatioVideo() {
+ if (empty($this->info['video'])) {
+ return false;
+ }
+ if (empty($this->info['video']['resolution_x']) || empty($this->info['video']['resolution_y'])) {
+ return false;
+ }
+ if (empty($this->info['video']['bits_per_sample'])) {
+ return false;
+ }
+
+ switch ($this->info['video']['dataformat']) {
+ case 'bmp':
+ case 'gif':
+ case 'jpeg':
+ case 'jpg':
+ case 'png':
+ case 'tiff':
+ $FrameRate = 1;
+ $PlaytimeSeconds = 1;
+ $BitrateCompressed = $this->info['filesize'] * 8;
+ break;
+
+ default:
+ if (!empty($this->info['video']['frame_rate'])) {
+ $FrameRate = $this->info['video']['frame_rate'];
+ } else {
+ return false;
+ }
+ if (!empty($this->info['playtime_seconds'])) {
+ $PlaytimeSeconds = $this->info['playtime_seconds'];
+ } else {
+ return false;
+ }
+ if (!empty($this->info['video']['bitrate'])) {
+ $BitrateCompressed = $this->info['video']['bitrate'];
+ } else {
+ return false;
+ }
+ break;
+ }
+ $BitrateUncompressed = $this->info['video']['resolution_x'] * $this->info['video']['resolution_y'] * $this->info['video']['bits_per_sample'] * $FrameRate;
+
+ $this->info['video']['compression_ratio'] = $BitrateCompressed / $BitrateUncompressed;
+ return true;
+ }
+
+
+ function CalculateCompressionRatioAudio() {
+ if (empty($this->info['audio']['bitrate']) || empty($this->info['audio']['channels']) || empty($this->info['audio']['sample_rate'])) {
+ return false;
+ }
+ $this->info['audio']['compression_ratio'] = $this->info['audio']['bitrate'] / ($this->info['audio']['channels'] * $this->info['audio']['sample_rate'] * (!empty($this->info['audio']['bits_per_sample']) ? $this->info['audio']['bits_per_sample'] : 16));
+
+ if (!empty($this->info['audio']['streams'])) {
+ foreach ($this->info['audio']['streams'] as $streamnumber => $streamdata) {
+ if (!empty($streamdata['bitrate']) && !empty($streamdata['channels']) && !empty($streamdata['sample_rate'])) {
+ $this->info['audio']['streams'][$streamnumber]['compression_ratio'] = $streamdata['bitrate'] / ($streamdata['channels'] * $streamdata['sample_rate'] * (!empty($streamdata['bits_per_sample']) ? $streamdata['bits_per_sample'] : 16));
+ }
+ }
+ }
+ return true;
+ }
+
+
+ function CalculateReplayGain() {
+ if (isset($this->info['replay_gain'])) {
+ $this->info['replay_gain']['reference_volume'] = 89;
+ if (isset($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'])) {
+ $this->info['replay_gain']['track']['max_noclip_gain'] = 0 - getid3_lib::RGADamplitude2dB($this->info['replay_gain']['track']['peak']);
+ }
+ if (isset($this->info['replay_gain']['album']['peak'])) {
+ $this->info['replay_gain']['album']['max_noclip_gain'] = 0 - getid3_lib::RGADamplitude2dB($this->info['replay_gain']['album']['peak']);
+ }
+ }
+ return true;
+ }
+
+ function ProcessAudioStreams() {
+ if (!empty($this->info['audio']['bitrate']) || !empty($this->info['audio']['channels']) || !empty($this->info['audio']['sample_rate'])) {
+ if (!isset($this->info['audio']['streams'])) {
+ foreach ($this->info['audio'] as $key => $value) {
+ if ($key != 'streams') {
+ $this->info['audio']['streams'][0][$key] = $value;
+ }
+ }
+ }
+ }
+ return true;
+ }
+
+ function getid3_tempnam() {
+ return tempnam($this->tempdir, 'gI3');
+ }
+
+}
+
+?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 16:49:00 +0000