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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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index f9dcf70..0000000
--- a/getid3/getid3.php
+++ /dev/null
@@ -1,1397 +0,0 @@
-<?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 16:39:57 +0000