<?php
/**
* This file is part of the PHP Video Toolkit v2 package.
*
* @author Oliver Lillie (aka buggedcom) <publicmail@buggedcom.co.uk>
* @license Dual licensed under MIT and GPLv2
* @copyright Copyright (c) 2008-2014 Oliver Lillie <http://www.buggedcom.co.uk>
* @package PHPVideoToolkit V2
* @version 2.1.7-beta
* @uses ffmpeg http://ffmpeg.sourceforge.net/
*/
namespace PHPVideoToolkit;
/**
* @access public
* @author Oliver Lillie
* @package default
*/
class Formats
{
/**
* This is a list of formats to valid extensions.
* Taken directly from the libavformat files inside ffmpeg.
* This list may not be complete and will need updating from time to time.
* Last updated 2013-03-01
*
* @access public
* @author Oliver Lillie
*/
static $format_to_extensions = array(
'a64' => array('a64', 'A64'),
'aac' => array('aac'),
'ace' => array('ac3', 'eac3'),
'adts' => array('aac,adts'),
'adx' => array('adx'),
'aea' => array('aea'),
'aiff' => array('aif', 'aiff', 'afc', 'aifc'),
'amr' => array('amr'),
'ape' => array('ape', 'apl', 'mac'),
'aqtitle' => array('aqt'),
'asf' => array('asf', 'wmv', 'wma'),
'asf_stream' => array('asf', 'wmv', 'wma'),
'ass' => array('ass', 'ssa'),
'ast' => array('ast'),
'au' => array('au'),
'avi' => array('avi'),
'avisynth' => array('avs'),
'avs' => array('avs'),
'avr' => array('avr'),
'bin' => array('bin'),
'adf' => array('adf'),
'idf' => array('idf'),
'bit' => array('bit'),
'bmv' => array('bmv'),
'brstm' => array('brstm'),
'caf' => array('caf'),
'cdg' => array('cdg'),
'cdxl' => array('cdxl', 'xl'),
'daud' => array('302', 'daud'),
'dts' => array('dts'),
'dtshd' => array('dtshd'),
'dv' => array('dv', 'dif'),
'ea_cdata' => array('cdata'),
'epaf' => array('pgaf', 'fap'),
'ffm' => array('ffm'),
'ffmetadata' => array('ffmeta'),
'filmstrip' => array('flm'),
'flac' => array('flac'),
'flv' => array('flv'),
'g722' => array('g722', '722'),
'g723_1' => array('tco', 'rco', 'g723_1'),
'g729' => array('g729'),
'gif' => array('gif'),
'gsm' => array('gsm'),
'gxf' => array('gxf'),
'hls' => array('m3u8'),
'ico' => array('ico'),
'roq' => array('roq'),
'ilbc' => array('lbc'),
'image2' => array('bmp', 'dpx', 'jls', 'jpeg', 'jpg', 'ljpg', 'pam', 'pbm', 'pcx', 'pgm', 'pgmyuv', 'png', 'ppm', 'sgi', 'tga', 'tif', 'tiff', 'jp2', 'j2c', 'xwd', 'sun', 'ras', 'rs', 'im1', 'im8', 'im24', 'sunras', 'xbm', 'xface'),
'ingenient' => array('cgi'),
'ircam' => array('sf', 'ircam'),
'ivf' => array('ivf'),
'jacosub' => array('jss', 'js'),
'latm' => array('latm', 'loas'),
'libmodplug' => array('669', 'abc', 'amf', 'ams', 'dbm', 'dmf', 'dsm', 'far', 'it', 'mdl', 'med', 'mid', 'mod', 'mt2', 'mtm', 'okt', 'psm', 'ptm', 's3m', 'stm', 'ult', 'umx', 'xm', 'itgz', 'itr', 'itz', 'mdgz', 'mdr', 'mdz', 's3gz', 's3r', 's3z', 'xmgz', 'xmr', 'xmz'),
'libnut' => array('nut'),
'lvf' => array('lvf'),
'matroska' => array('mkv', 'mka'),
'webm' => array('webm'),
'microdvd' => array('sub'),
'mmf' => array('mmf'),
'mov' => array('mov'),
'3gp' => array('3gp'),
'mp4' => array('mp4'),
'psp' => array('mp4', 'psp'),
'3g2' => array('3g2'),
'ipod' => array('m4v', 'm4a'),
'ismv' => array('ismv', 'isma'),
'f4v' => array('f4v'),
'mp3' => array('mp2', 'mp3', 'm2a'),
'mp2' => array('mp2', 'm2a', 'mp3'),
'mpc' => array('mpc'),
'vobsub' => array('idx'),
'mpeg' => array('mpg', 'mpeg'),
'vob' => array('vob'),
'svcd' => array('vob'),
'dvd' => array('dvd'),
'mpegts' => array('ts', 'm2t', 'm2ts', 'mts'),
'mpjpeg' => array('mjpg'),
'mpl2' => array('txt', 'mpl2'),
'mpsub' => array('sub'),
'mvi' => array('mvi'),
'mxf' => array('mxf'),
'mxg' => array('mxg'),
'nc' => array('v'),
'nistsphere' => array('nist', 'sph'),
'nut' => array('nut'),
'ogg' => array('ogg', 'ogv', 'spx', 'opus'),
'oga' => array('oga'),
'oma' => array('oma', 'omg', 'aa3'),
'oma' => array('oma'),
's16be' => array('sw'),
's16le' => array('sw'),
's8' => array('sb'),
'u16be' => array('uw'),
'u16le' => array('uw'),
'u8' => array('ub'),
'alaw' => array('al'),
'mulaw' => array('ul'),
'pjs' => array('pjs'),
'pvf' => array('pvf'),
'latm' => array('latm'),
'mlp' => array('mlp'),
'truehd' => array('thd'),
'shn' => array('shn'),
'vc1' => array('vc1'),
'ac3' => array('ac3'),
'adx' => array('adx'),
'cavsvideo' => array('cavs'),
'dirac' => array('drc'),
'dnxhd' => array('dnxhd'),
'dts' => array('dts'),
'eac3' => array('eac3'),
'g722' => array('g722'),
'g723_1' => array('tco', 'rco'),
'h261' => array('h261'),
'h263' => array('h263'),
'h264' => array('h264'),
'm4v' => array('m4v'),
'mjpeg' => array('mjpg', 'mjpeg'),
'mlp' => array('mlp'),
'mpeg1video' => array('mpg', 'mpeg', 'm1v'),
'mpeg2video' => array('m2v'),
'rawvideo' => array('yuv', 'rgb'),
'truehd' => array('thd'),
'rawvideo' => array('yuv', 'cif', 'qcif', 'rgb'),
'realtext' => array('rt'),
'rm' => array('rm', 'ra'),
'rso' => array('rso'),
'sami' => array('smi', 'sami'),
'sbg' => array('sbg'),
'siff' => array('vb', 'son'),
'smjpeg' => array('mjpg'),
'sox' => array('sox'),
'spdif' => array('spdif'),
'srt' => array('srt'),
'subviewer1' => array('sub'),
'subviewer' => array('sub'),
'swf' => array('swf'),
'tak' => array('tak'),
'tta' => array('tta'),
'tty' => array('ans', 'art', 'asc', 'diz', 'ice', 'nfo', 'txt', 'vt'),
'rcv' => array('rcv'),
'vivo' => array('viv'),
'voc' => array('voc'),
'vplayer' => array('txt'),
'vqf' => array('vqf', 'vql', 'vqe'),
'wav' => array('wav'),
'w64' => array('w64'),
'webvtt' => array('vtt'),
'wtv' => array('wtv'),
'wv' => array('wv'),
'yop' => array('yop'),
'yuv4mpegpipe' => array('y4m'),
);
/**
* Returns an array of extensions assiciated with this format.
*
* @access public
* @author Oliver Lillie
* @param string $format
* @return mixed Returns false if no matching extensions are found, otherwise returns the list
* of extensions in an array.
*/
public static function toExtensions($format)
{
$format = strtolower($format);
return isset(self::$format_to_extensions[$format]) === true ? self::$format_to_extensions[$format] : false;
}
/**
* Attempts to get a "best guess" extension from all compatible extensions.
* The way this works is that if an exact match of the format is that extension, then that is returned,
* if not then the first extension in the matched extensions is returned.
*
* @access public
* @author Oliver Lillie
* @param string $format
* @return mixed Returns false if no extension is found, otherwise the extension is returned as a string.
*/
public static function toBestGuessExtension($format)
{
$format = strtolower($format);
$extensions = self::toExtensions($format);
if($extensions === false)
{
return false;
}
else if(in_array($format, $extensions) === true)
{
return $format;
}
return $extensions[0];
}
}
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