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WordPress/wp-includes/ID3/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 //
// also https://github.com/JamesHeinrich/getID3 //
/////////////////////////////////////////////////////////////////
// //
// Please see readme.txt for more information //
// ///
/////////////////////////////////////////////////////////////////
// define a constant rather than looking up every time it is needed
if (!defined('GETID3_OS_ISWINDOWS')) {
define('GETID3_OS_ISWINDOWS', (stripos(PHP_OS, 'WIN') === 0));
}
// Get base path of getID3() - ONCE
if (!defined('GETID3_INCLUDEPATH')) {
define('GETID3_INCLUDEPATH', dirname(__FILE__).DIRECTORY_SEPARATOR);
}
// Workaround Bug #39923 (https://bugs.php.net/bug.php?id=39923)
if (!defined('IMG_JPG') && defined('IMAGETYPE_JPEG')) {
define('IMG_JPG', IMAGETYPE_JPEG);
}
// attempt to define temp dir as something flexible but reliable
$temp_dir = ini_get('upload_tmp_dir');
if ($temp_dir && (!is_dir($temp_dir) || !is_readable($temp_dir))) {
$temp_dir = '';
}
if (!$temp_dir && function_exists('sys_get_temp_dir')) { // sys_get_temp_dir added in PHP v5.2.1
// sys_get_temp_dir() may give inaccessible temp dir, e.g. with open_basedir on virtual hosts
$temp_dir = sys_get_temp_dir();
}
$temp_dir = @realpath($temp_dir); // see https://github.com/JamesHeinrich/getID3/pull/10
$open_basedir = ini_get('open_basedir');
if ($open_basedir) {
// e.g. "/var/www/vhosts/getid3.org/httpdocs/:/tmp/"
$temp_dir = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $temp_dir);
$open_basedir = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $open_basedir);
if (substr($temp_dir, -1, 1) != DIRECTORY_SEPARATOR) {
$temp_dir .= DIRECTORY_SEPARATOR;
}
$found_valid_tempdir = false;
$open_basedirs = explode(PATH_SEPARATOR, $open_basedir);
foreach ($open_basedirs as $basedir) {
if (substr($basedir, -1, 1) != DIRECTORY_SEPARATOR) {
$basedir .= DIRECTORY_SEPARATOR;
}
if (preg_match('#^'.preg_quote($basedir).'#', $temp_dir)) {
$found_valid_tempdir = true;
break;
}
}
if (!$found_valid_tempdir) {
$temp_dir = '';
}
unset($open_basedirs, $found_valid_tempdir, $basedir);
}
if (!$temp_dir) {
$temp_dir = '*'; // invalid directory name should force tempnam() to use system default temp dir
}
// $temp_dir = '/something/else/'; // feel free to override temp dir here if it works better for your system
if (!defined('GETID3_TEMP_DIR')) {
define('GETID3_TEMP_DIR', $temp_dir);
}
unset($open_basedir, $temp_dir);
// End: Defines
class getID3
{
// public: Settings
public $encoding = 'UTF-8'; // CASE SENSITIVE! - i.e. (must be supported by iconv()). Examples: ISO-8859-1 UTF-8 UTF-16 UTF-16BE
public $encoding_id3v1 = 'ISO-8859-1'; // Should always be 'ISO-8859-1', but some tags may be written in other encodings such as 'EUC-CN' or 'CP1252'
// public: Optional tag checks - 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
public $option_tags_process = true; // Copy tags to root key 'tags' and encode to $this->encoding
public $option_tags_html = true; // Copy tags to root key 'tags_html' properly translated from various encodings to HTML entities
// public: Optional tag/comment calucations
public $option_extra_info = true; // Calculate additional info such as bitrate, channelmode etc
// public: Optional handling of embedded attachments (e.g. images)
public $option_save_attachments = true; // defaults to true (ATTACHMENTS_INLINE) for backward compatibility
// public: Optional calculations
public $option_md5_data = false; // Get MD5 sum of data part - slow
public $option_md5_data_source = false; // Use MD5 of source file if availble - only FLAC and OptimFROG
public $option_sha1_data = false; // Get SHA1 sum of data part - slow
public $option_max_2gb_check = null; // Check whether file is larger than 2GB and thus not supported by 32-bit PHP (null: auto-detect based on PHP_INT_MAX)
// public: Read buffer size in bytes
public $option_fread_buffer_size = 32768;
// Public variables
public $filename; // Filename of file being analysed.
public $fp; // Filepointer to file being analysed.
public $info; // Result array.
public $tempdir = GETID3_TEMP_DIR;
public $memory_limit = 0;
// Protected variables
protected $startup_error = '';
protected $startup_warning = '';
const VERSION = '1.9.9-20141121';
const FREAD_BUFFER_SIZE = 32768;
const ATTACHMENTS_NONE = false;
const ATTACHMENTS_INLINE = true;
// public: constructor
public function __construct() {
// Check memory
$this->memory_limit = ini_get('memory_limit');
if (preg_match('#([0-9]+)M#i', $this->memory_limit, $matches)) {
// could be stored as "16M" rather than 16777216 for example
$this->memory_limit = $matches[1] * 1048576;
} elseif (preg_match('#([0-9]+)G#i', $this->memory_limit, $matches)) { // The 'G' modifier is available since PHP 5.1.0
// could be stored as "2G" rather than 2147483648 for example
$this->memory_limit = $matches[1] * 1073741824;
}
if ($this->memory_limit <= 0) {
// memory limits probably disabled
} elseif ($this->memory_limit <= 4194304) {
$this->startup_error .= 'PHP has less than 4MB available memory and will very likely run out. Increase memory_limit in php.ini';
} elseif ($this->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 (preg_match('#(1|ON)#i', 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.');
}
if (intval(ini_get('mbstring.func_overload')) > 0) {
$this->warning('WARNING: php.ini contains "mbstring.func_overload = '.ini_get('mbstring.func_overload').'", this may break things.');
}
// Check for magic_quotes_runtime
if (function_exists('get_magic_quotes_runtime')) {
if (get_magic_quotes_runtime()) {
return $this->startup_error('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 for magic_quotes_gpc
if (function_exists('magic_quotes_gpc')) {
if (get_magic_quotes_gpc()) {
return $this->startup_error('magic_quotes_gpc must be disabled before running getID3(). Surround getid3 block by set_magic_quotes_gpc(0) and set_magic_quotes_gpc(1).');
}
}
// Load support library
if (!include_once(GETID3_INCLUDEPATH.'getid3.lib.php')) {
$this->startup_error .= 'getid3.lib.php is missing or corrupt';
}
if ($this->option_max_2gb_check === null) {
$this->option_max_2gb_check = (PHP_INT_MAX <= 2147483647);
}
// 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
// This path cannot contain spaces, but the below code will attempt to get the
// 8.3-equivalent path automatically
// 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)) {
$this->startup_warning .= '"'.$helperappsdir.'" cannot be defined as GETID3_HELPERAPPSDIR because it does not exist';
} elseif (strpos(realpath($helperappsdir), ' ') !== false) {
$DirPieces = explode(DIRECTORY_SEPARATOR, realpath($helperappsdir));
$path_so_far = array();
foreach ($DirPieces as $key => $value) {
if (strpos($value, ' ') !== false) {
if (!empty($path_so_far)) {
$commandline = 'dir /x '.escapeshellarg(implode(DIRECTORY_SEPARATOR, $path_so_far));
$dir_listing = `$commandline`;
$lines = explode("\n", $dir_listing);
foreach ($lines as $line) {
$line = trim($line);
if (preg_match('#^([0-9/]{10}) +([0-9:]{4,5}( [AP]M)?) +(<DIR>|[0-9,]+) +([^ ]{0,11}) +(.+)$#', $line, $matches)) {
list($dummy, $date, $time, $ampm, $filesize, $shortname, $filename) = $matches;
if ((strtoupper($filesize) == '<DIR>') && (strtolower($filename) == strtolower($value))) {
$value = $shortname;
}
}
}
} else {
$this->startup_warning .= 'GETID3_HELPERAPPSDIR must not have any spaces in it - use 8dot3 naming convention if neccesary. You can run "dir /x" from the commandline to see the correct 8.3-style names.';
}
}
$path_so_far[] = $value;
}
$helperappsdir = implode(DIRECTORY_SEPARATOR, $path_so_far);
}
define('GETID3_HELPERAPPSDIR', $helperappsdir.DIRECTORY_SEPARATOR);
}
return true;
}
public function version() {
return self::VERSION;
}
public function fread_buffer_size() {
return $this->option_fread_buffer_size;
}
// public: setOption
public function setOption($optArray) {
if (!is_array($optArray) || empty($optArray)) {
return false;
}
foreach ($optArray as $opt => $val) {
if (isset($this->$opt) === false) {
continue;
}
$this->$opt = $val;
}
return true;
}
public function openfile($filename) {
try {
if (!empty($this->startup_error)) {
throw new getid3_exception($this->startup_error);
}
if (!empty($this->startup_warning)) {
$this->warning($this->startup_warning);
}
// init result array and set parameters
$this->filename = $filename;
$this->info = array();
$this->info['GETID3_VERSION'] = $this->version();
$this->info['php_memory_limit'] = (($this->memory_limit > 0) ? $this->memory_limit : false);
// 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');
}
$filename = str_replace('/', DIRECTORY_SEPARATOR, $filename);
$filename = preg_replace('#(.+)'.preg_quote(DIRECTORY_SEPARATOR).'{2,}#U', '\1'.DIRECTORY_SEPARATOR, $filename);
// open local file
//if (is_readable($filename) && is_file($filename) && ($this->fp = fopen($filename, 'rb'))) { // see http://www.getid3.org/phpBB3/viewtopic.php?t=1720
if ((is_readable($filename) || file_exists($filename)) && is_file($filename) && ($this->fp = fopen($filename, 'rb'))) {
// great
} else {
$errormessagelist = array();
if (!is_readable($filename)) {
$errormessagelist[] = '!is_readable';
}
if (!is_file($filename)) {
$errormessagelist[] = '!is_file';
}
if (!file_exists($filename)) {
$errormessagelist[] = '!file_exists';
}
if (empty($errormessagelist)) {
$errormessagelist[] = 'fopen failed';
}
throw new getid3_exception('Could not open "'.$filename.'" ('.implode('; ', $errormessagelist).')');
}
$this->info['filesize'] = filesize($filename);
// set redundant parameters - might be needed in some include file
// filenames / filepaths in getID3 are always expressed with forward slashes (unix-style) for both Windows and other to try and minimize confusion
$filename = str_replace('\\', '/', $filename);
$this->info['filepath'] = str_replace('\\', '/', realpath(dirname($filename)));
$this->info['filename'] = getid3_lib::mb_basename($filename);
$this->info['filenamepath'] = $this->info['filepath'].'/'.$this->info['filename'];
// option_max_2gb_check
if ($this->option_max_2gb_check) {
// PHP (32-bit all, and 64-bit Windows) doesn't support integers larger than 2^31 (~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
$fseek = fseek($this->fp, 0, SEEK_END);
if (($fseek < 0) || (($this->info['filesize'] != 0) && (ftell($this->fp) == 0)) ||
($this->info['filesize'] < 0) ||
(ftell($this->fp) < 0)) {
$real_filesize = getid3_lib::getFileSizeSyscall($this->info['filenamepath']);
if ($real_filesize === false) {
unset($this->info['filesize']);
fclose($this->fp);
throw new getid3_exception('Unable to determine actual filesize. File is most likely larger than '.round(PHP_INT_MAX / 1073741824).'GB and is not supported by PHP.');
} elseif (getid3_lib::intValueSupported($real_filesize)) {
unset($this->info['filesize']);
fclose($this->fp);
throw new getid3_exception('PHP seems to think the file is larger than '.round(PHP_INT_MAX / 1073741824).'GB, but filesystem reports it as '.number_format($real_filesize, 3).'GB, please report to info@getid3.org');
}
$this->info['filesize'] = $real_filesize;
$this->warning('File is larger than '.round(PHP_INT_MAX / 1073741824).'GB (filesystem reports it as '.number_format($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
return true;
} catch (Exception $e) {
$this->error($e->getMessage());
}
return false;
}
// public: analyze file
public function analyze($filename) {
try {
if (!$this->openfile($filename)) {
return $this->info;
}
// Handle tags
foreach (array('id3v2'=>'id3v2', 'id3v1'=>'id3v1', 'apetag'=>'ape', 'lyrics3'=>'lyrics3') as $tag_name => $tag_key) {
$option_tag = 'option_tag_'.$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 $e;
}
}
}
if (isset($this->info['id3v2']['tag_offset_start'])) {
$this->info['avdataoffset'] = max($this->info['avdataoffset'], $this->info['id3v2']['tag_offset_end']);
}
foreach (array('id3v1'=>'id3v1', 'apetag'=>'ape', 'lyrics3'=>'lyrics3') as $tag_name => $tag_key) {
if (isset($this->info[$tag_key]['tag_offset_start'])) {
$this->info['avdataend'] = min($this->info['avdataend'], $this->info[$tag_key]['tag_offset_start']);
}
}
// ID3v2 detection (NOT parsing), even if ($this->option_tag_id3v2 == false) done to make fileformat easier
if (!$this->option_tag_id3v2) {
fseek($this->fp, 0);
$header = fread($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
}
}
// read 32 kb file data
fseek($this->fp, $this->info['avdataoffset']);
$formattest = fread($this->fp, 32774);
// determine format
$determined_format = $this->GetFileFormat($formattest, $filename);
// unable to determine file format
if (!$determined_format) {
fclose($this->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($this->fp);
return $this->error('ID3 tags not allowed on this file type.');
} elseif ($determined_format['fail_id3'] === 'WARNING') {
$this->warning('ID3 tags not allowed on this file type.');
}
}
// check for illegal APE tags
if (isset($determined_format['fail_ape']) && in_array('ape', $this->info['tags'])) {
if ($determined_format['fail_ape'] === 'ERROR') {
fclose($this->fp);
return $this->error('APE tags not allowed on this file type.');
} elseif ($determined_format['fail_ape'] === 'WARNING') {
$this->warning('APE tags not allowed on this file type.');
}
}
// set mime type
$this->info['mime_type'] = $determined_format['mime_type'];
// supported format signature pattern detected, but module deleted
if (!file_exists(GETID3_INCLUDEPATH.$determined_format['include'])) {
fclose($this->fp);
return $this->error('Format not supported, module "'.$determined_format['include'].'" was removed.');
}
// module requires iconv support
// Check encoding/iconv support
if (!empty($determined_format['iconv_req']) && !function_exists('iconv') && !in_array($this->encoding, array('ISO-8859-1', 'UTF-8', 'UTF-16LE', 'UTF-16BE', 'UTF-16'))) {
$errormessage = 'iconv() support is required for this module ('.$determined_format['include'].') 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);
}
// 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.');
}
$class = new $class_name($this);
$class->Analyze();
unset($class);
// close file
fclose($this->fp);
// process all tags - copy to 'tags' and convert charsets
if ($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 calc 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();
} catch (Exception $e) {
$this->error('Caught exception: '.$e->getMessage());
}
// return info array
return $this->info;
}
// private: error handling
public function error($message) {
$this->CleanUp();
if (!isset($this->info['error'])) {
$this->info['error'] = array();
}
$this->info['error'][] = $message;
return $this->info;
}
// private: warning handling
public function warning($message) {
$this->info['warning'][] = $message;
return true;
}
// private: CleanUp
private 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']);
}
}
// remove possible duplicated identical entries
if (!empty($this->info['error'])) {
$this->info['error'] = array_values(array_unique($this->info['error']));
}
if (!empty($this->info['warning'])) {
$this->info['warning'] = array_values(array_unique($this->info['warning']));
}
// remove "global variable" type keys
unset($this->info['php_memory_limit']);
return true;
}
// return array containing information about all supported formats
public 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',
'mime_type' => 'application/octet-stream',
'fail_ape' => 'WARNING',
),
/*
// AA - audio - Audible Audiobook
'aa' => array(
'pattern' => '^.{4}\x57\x90\x75\x36',
'group' => 'audio',
'module' => 'aa',
'mime_type' => 'audio/audible',
),
*/
// AAC - audio - Advanced Audio Coding (AAC) - ADTS format (very similar to MP3)
'adts' => array(
'pattern' => '^\xFF[\xF0-\xF1\xF8-\xF9]',
'group' => 'audio',
'module' => 'aac',
'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',
),
// AMR - audio - Adaptive Multi Rate
'amr' => array(
'pattern' => '^\x23\x21AMR\x0A', // #!AMR[0A]
'group' => 'audio',
'module' => 'amr',
'mime_type' => 'audio/amr',
),
// 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-\x03]ds[s2]',
'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-\x0B\x10-\x1B\x20-\x2B\x30-\x3B\x40-\x4B\x50-\x5B\x60-\x6B\x70-\x7B\x80-\x8B\x90-\x9B\xA0-\xAB\xB0-\xBB\xC0-\xCB\xD0-\xDB\xE0-\xEB\xF0-\xFB]',
'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',
),
// TS - audio/video - MPEG-2 Transport Stream
'ts' => array(
'pattern' => '^(\x47.{187}){10,}', // packets are 188 bytes long and start with 0x47 "G". Check for at least 10 packets matching this pattern
'group' => 'audio-video',
'module' => 'ts',
'mime_type' => 'video/MP2T',
),
// 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 |xmlns="http:\/\/www\.w3\.org\/2000\/svg")',
'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',
),
// EFAX - still image - eFax (TIFF derivative)
'efax' => array(
'pattern' => '^\xDC\xFE',
'group' => 'graphic',
'module' => 'efax',
'mime_type' => 'image/efax',
'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\xA1\xB1\x1A\xE1', // D0CF11E == DOCFILE == Microsoft Office Document
'group' => 'misc',
'module' => 'msoffice',
'mime_type' => 'application/octet-stream',
'fail_id3' => 'ERROR',
'fail_ape' => 'ERROR',
),
// CUE - data - CUEsheet (index to single-file disc images)
'cue' => array(
'pattern' => '', // empty pattern means cannot be automatically detected, will fall through all other formats and match based on filename and very basic file contents
'group' => 'misc',
'module' => 'cue',
'mime_type' => 'application/octet-stream',
),
);
}
return $format_info;
}
public function GetFileFormat(&$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 => $info) {
// The /s switch on preg_match() forces preg_match() NOT to treat
// newline (0x0A) characters as special chars but do a binary match
if (!empty($info['pattern']) && 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 $info;
} elseif (preg_match('/\.cue$/i', $filename) && preg_match('#FILE "[^"]+" (BINARY|MOTOROLA|AIFF|WAVE|MP3)#', $filedata)) {
// there's not really a useful consistent "magic" at the beginning of .cue files to identify them
// so until I think of something better, just go by filename if all other format checks fail
// and verify there's at least one instance of "TRACK xx AUDIO" in the file
$GetFileFormatArray = $this->GetFileFormatArray();
$info = $GetFileFormatArray['cue'];
$info['include'] = 'module.'.$info['group'].'.'.$info['module'].'.php';
return $info;
}
return false;
}
// converts array to $encoding charset from $this->encoding
public function CharConvert(&$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));
}
}
}
public 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' , 'UTF-8'),
'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' , $this->encoding_id3v1),
'id3v2' => array('id3v2' , 'UTF-8'), // not according to the specs (every frame can have a different encoding), but getID3() force-converts all encodings to UTF-8
'ape' => array('ape' , 'UTF-8'),
'cue' => array('cue' , 'ISO-8859-1'),
'matroska' => array('matroska' , 'UTF-8'),
'flac' => array('vorbiscomment' , 'UTF-8'),
'divxtag' => array('divx' , 'ISO-8859-1'),
'iptc' => array('iptc' , 'ISO-8859-1'),
);
}
// loop through comments array
foreach ($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 => $value) {
if (is_string($value)) {
$value = trim($value, " \r\n\t"); // do not trim nulls from $value!! Unicode characters will get mangled if trailing nulls are removed!
}
if ($value) {
if (!is_numeric($key)) {
$this->info['tags'][trim($tag_name)][trim($tag_key)][$key] = $value;
} else {
$this->info['tags'][trim($tag_name)][trim($tag_key)][] = $value;
}
}
}
if ($tag_key == 'picture') {
unset($this->info[$comment_name]['comments'][$tag_key]);
}
}
if (!isset($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) {
$this->info['tags_html'][$tag_name][$tag_key] = getid3_lib::recursiveMultiByteCharString2HTML($valuearray, $encoding);
}
}
$this->CharConvert($this->info['tags'][$tag_name], $encoding); // only copy gets converted!
}
}
// pictures can take up a lot of space, and we don't need multiple copies of them
// let there be a single copy in [comments][picture], and not elsewhere
if (!empty($this->info['tags'])) {
$unset_keys = array('tags', 'tags_html');
foreach ($this->info['tags'] as $tagtype => $tagarray) {
foreach ($tagarray as $tagname => $tagdata) {
if ($tagname == 'picture') {
foreach ($tagdata as $key => $tagarray) {
$this->info['comments']['picture'][] = $tagarray;
if (isset($tagarray['data']) && isset($tagarray['image_mime'])) {
if (isset($this->info['tags'][$tagtype][$tagname][$key])) {
unset($this->info['tags'][$tagtype][$tagname][$key]);
}
if (isset($this->info['tags_html'][$tagtype][$tagname][$key])) {
unset($this->info['tags_html'][$tagtype][$tagname][$key]);
}
}
}
}
}
foreach ($unset_keys as $unset_key) {
// remove possible empty keys from (e.g. [tags][id3v2][picture])
if (empty($this->info[$unset_key][$tagtype]['picture'])) {
unset($this->info[$unset_key][$tagtype]['picture']);
}
if (empty($this->info[$unset_key][$tagtype])) {
unset($this->info[$unset_key][$tagtype]);
}
if (empty($this->info[$unset_key])) {
unset($this->info[$unset_key]);
}
}
// remove duplicate copy of picture data from (e.g. [id3v2][comments][picture])
if (isset($this->info[$tagtype]['comments']['picture'])) {
unset($this->info[$tagtype]['comments']['picture']);
}
if (empty($this->info[$tagtype]['comments'])) {
unset($this->info[$tagtype]['comments']);
}
if (empty($this->info[$tagtype])) {
unset($this->info[$tagtype]);
}
}
}
return true;
}
public function getHashdata($algorithm) {
switch ($algorithm) {
case 'md5':
case 'sha1':
break;
default:
return $this->error('bad algorithm "'.$algorithm.'" in getHashdata()');
break;
}
if (!empty($this->info['fileformat']) && !empty($this->info['dataformat']) && ($this->info['fileformat'] == 'ogg') && ($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 (preg_match('#(1|ON)#i', ini_get('safe_mode'))) {
$this->warning('Failed making system call to vorbiscomment.exe - '.$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
$empty = tempnam(GETID3_TEMP_DIR, 'getID3');
touch($empty);
// Use vorbiscomment to make temp file without comments
$temp = tempnam(GETID3_TEMP_DIR, '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'] = md5_file($temp);
break;
case 'sha1':
$this->info[$algorithm.'_data'] = 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'] = md5_file($this->info['filenamepath']);
break;
case 'sha1':
$this->info[$algorithm.'_data'] = sha1_file($this->info['filenamepath']);
break;
}
}
}
return true;
}
public function ChannelsBitratePlaytimeCalculations() {
// set channelmode on audio
if (!empty($this->info['audio']['channelmode']) || !isset($this->info['audio']['channels'])) {
// ignore
} elseif ($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) / $this->info['playtime_seconds'];
}
if (isset($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']);
}
}
public 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 / $BitrateUncompressed;
return true;
}
public function CalculateCompressionRatioAudio() {
if (empty($this->info['audio']['bitrate']) || empty($this->info['audio']['channels']) || empty($this->info['audio']['sample_rate']) || !is_numeric($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']) ? $streamdata['bits_per_sample'] : 16));
}
}
}
return true;
}
public function CalculateReplayGain() {
if (isset($this->info['replay_gain'])) {
if (!isset($this->info['replay_gain']['reference_volume'])) {
$this->info['replay_gain']['reference_volume'] = (double) 89.0;
}
if (isset($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;
}
public 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] = $value;
}
}
}
}
return true;
}
public function getid3_tempnam() {
return tempnam($this->tempdir, 'gI3');
}
public function include_module($name) {
//if (!file_exists($this->include_path.'module.'.$name.'.php')) {
if (!file_exists(GETID3_INCLUDEPATH.'module.'.$name.'.php')) {
throw new getid3_exception('Required module.'.$name.'.php is missing.');
}
include_once(GETID3_INCLUDEPATH.'module.'.$name.'.php');
return true;
}
}
abstract class getid3_handler {
/**
* @var getID3
*/
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
protected $data_string_length = 0; // string length
private $dependency_to = null;
public function __construct(getID3 $getid3, $call_module=null) {
$this->getid3 = $getid3;
if ($call_module) {
$this->dependency_to = str_replace('getid3_', '', $call_module);
}
}
// Analyze from file pointer
abstract public function Analyze();
// Analyze from string instead
public function AnalyzeString($string) {
// Enter string mode
$this->setStringMode($string);
// Save info
$saved_avdataoffset = $this->getid3->info['avdataoffset'];
$saved_avdataend = $this->getid3->info['avdataend'];
$saved_filesize = (isset($this->getid3->info['filesize']) ? $this->getid3->info['filesize'] : null); // may be not set if called as dependency without openfile() call
// Reset some info
$this->getid3->info['avdataoffset'] = 0;
$this->getid3->info['avdataend'] = $this->getid3->info['filesize'] = $this->data_string_length;
// 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
$this->data_string_flag = false;
}
public function setStringMode($string) {
$this->data_string_flag = true;
$this->data_string = $string;
$this->data_string_length = strlen($string);
}
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);
}
$pos = $this->ftell() + $bytes;
if (!getid3_lib::intValueSupported($pos)) {
throw new getid3_exception('cannot fread('.$bytes.' from '.$this->ftell().') because beyond PHP filesystem limit', 10);
}
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;
break;
case SEEK_CUR:
$this->data_string_position += $bytes;
break;
case SEEK_END:
$this->data_string_position = $this->data_string_length + $bytes;
break;
}
return 0;
} else {
$pos = $bytes;
if ($whence == SEEK_CUR) {
$pos = $this->ftell() + $bytes;
} elseif ($whence == SEEK_END) {
$pos = $this->getid3->info['filesize'] + $bytes;
}
if (!getid3_lib::intValueSupported($pos)) {
throw new getid3_exception('cannot fseek('.$pos.') because beyond PHP filesystem limit', 10);
}
}
return fseek($this->getid3->fp, $bytes, $whence);
}
protected function feof() {
if ($this->data_string_flag) {
return $this->data_string_position >= $this->data_string_length;
}
return feof($this->getid3->fp);
}
final protected function isDependencyFor($module) {
return $this->dependency_to == $module;
}
protected function error($text) {
$this->getid3->info['error'][] = $text;
return false;
}
protected function warning($text) {
return $this->getid3->warning($text);
}
protected function notice($text) {
// does nothing for now
}
public function saveAttachment($name, $offset, $length, $image_mime=null) {
try {
// do not extract at all
if ($this->getid3->option_save_attachments === getID3::ATTACHMENTS_NONE) {
$attachment = null; // do not set any
// extract to return array
} elseif ($this->getid3->option_save_attachments === getID3::ATTACHMENTS_INLINE) {
$this->fseek($offset);
$attachment = $this->fread($length); // get whole data in one pass, till it is anyway stored in memory
if ($attachment === false || strlen($attachment) != $length) {
throw new Exception('failed to read attachment data');
}
// assume directory path is given
} else {
// set up destination path
$dir = rtrim(str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $this->getid3->option_save_attachments), DIRECTORY_SEPARATOR);
if (!is_dir($dir) || !is_writable($dir)) { // check supplied directory
throw new Exception('supplied path ('.$dir.') does not exist, or is not writable');
}
$dest = $dir.DIRECTORY_SEPARATOR.$name.($image_mime ? '.'.getid3_lib::ImageExtFromMime($image_mime) : '');
// create dest file
if (($fp_dest = fopen($dest, 'wb')) == false) {
throw new Exception('failed to create file '.$dest);
}
// copy data
$this->fseek($offset);
$buffersize = ($this->data_string_flag ? $length : $this->getid3->fread_buffer_size());
$bytesleft = $length;
while ($bytesleft > 0) {
if (($buffer = $this->fread(min($buffersize, $bytesleft))) === false || ($byteswritten = fwrite($fp_dest, $buffer)) === false || ($byteswritten === 0)) {
throw new Exception($buffer === false ? 'not enough data to read' : 'failed to write to destination file, may be not enough disk space');
}
$bytesleft -= $byteswritten;
}
fclose($fp_dest);
$attachment = $dest;
}
} catch (Exception $e) {
// close and remove dest file if created
if (isset($fp_dest) && is_resource($fp_dest)) {
fclose($fp_dest);
unlink($dest);
}
// do not set any is case of error
$attachment = null;
$this->warning('Failed to extract attachment '.$name.': '.$e->getMessage());
}
// seek to the end of attachment
$this->fseek($offset + $length);
return $attachment;
}
}
class getid3_exception extends Exception
{
public $message;
}
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