<?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;
/**
* Extends FfmpegParserAbstract and returns the data required from ffmpeg using specific commands.
*
* @author Oliver Lillie
*/
class FfmpegParserGeneric extends FfmpegParserAbstract
{
/**
* Returns the raw data returned from ffmpeg about the available supported codecs.
*
* @access public
* @author Oliver Lillie
* @param boolean $read_from_cache If true and the data exists within a cache then that data is used. If false
* then the data is re-read from ffmpeg.
* @return string Returns the raw buffer data from ffmpeg.
* @throws PHPVideoToolkit\FfmpegProcessException If the call to ffmpeg encounters an error.
*/
public function getRawCodecData($read_from_cache=true)
{
$cache_key = 'ffmpeg_parser_generic/raw_codec_data';
if($read_from_cache === true && ($data = $this->_cacheGet($cache_key)))
{
return $data;
}
$exec = new FfmpegProcess('ffmpeg', $this->_config);
$data = $exec->addCommand('-codecs')
->execute()
->getBuffer();
// check the process for any errors.
if($exec->hasError() === true)
{
throw new FfmpegProcessException('An error was encountered when attempting to read FFmpegs\' available codecs. FFmpeg reported: '.$exec->getLastLine(), null, $exec);
}
$this->_cacheSet($cache_key, $data);
return $data;
}
/**
* Returns the raw data returned from ffmpeg about the available supported filters.
*
* @access public
* @author Oliver Lillie
* @param boolean $read_from_cache If true and the data exists within a cache then that data is used. If false
* then the data is re-read from ffmpeg.
* @return string Returns the raw buffer data from ffmpeg.
* @throws FfmpegProcessException If the call to ffmpeg encounters an error.
*/
public function getRawFiltersData($read_from_cache=true)
{
$cache_key = 'ffmpeg_parser_generic/raw_filters_data';
if($read_from_cache === true && ($data = $this->_cacheGet($cache_key)))
{
return $data;
}
$exec = new FfmpegProcess('ffmpeg', $this->_config);
$data = $exec->addCommand('-filters')
->execute()
->getBuffer();
// check the process for any errors.
if($exec->hasError() === true)
{
throw new FfmpegProcessException('An error was encountered when attempting to read FFmpegs\' available filters. FFmpeg reported: '.$exec->getLastLine(), null, $exec);
}
$this->_cacheSet($cache_key, $data);
return $data;
}
/**
* Returns the raw data returned from ffmpeg about the available supported bitstream filters.
*
* @access public
* @author Oliver Lillie
* @param boolean $read_from_cache If true and the data exists within a cache then that data is used. If false
* then the data is re-read from ffmpeg.
* @return string Returns the raw buffer data from ffmpeg.
* @throws FfmpegProcessException If the call to ffmpeg encounters an error.
*/
public function getRawBitstreamFiltersData($read_from_cache=true)
{
$cache_key = 'ffmpeg_parser_generic/raw_bitstream_filters_data';
if($read_from_cache === true && ($data = $this->_cacheGet($cache_key)))
{
return $data;
}
$exec = new FfmpegProcess('ffmpeg', $this->_config);
$data = $exec->addCommand('-bsfs')
->execute()
->getBuffer();
// check the process for any errors.
if($exec->hasError() === true)
{
throw new FfmpegProcessException('An error was encountered when attempting to read FFmpegs\' available bitstream filters. FFmpeg reported: '.$exec->getLastLine(), null, $exec);
}
$this->_cacheSet($cache_key, $data);
return $data;
}
/**
* Returns the raw data returned from ffmpeg about the available supported protocols.
*
* @access public
* @author Oliver Lillie
* @param boolean $read_from_cache If true and the data exists within a cache then that data is used. If false
* then the data is re-read from ffmpeg.
* @return string Returns the raw buffer data from ffmpeg.
* @throws FfmpegProcessException If the call to ffmpeg encounters an error.
*/
public function getRawProtocolsData($read_from_cache=true)
{
$cache_key = 'ffmpeg_parser_generic/raw_protocols_data';
if($read_from_cache === true && ($data = $this->_cacheGet($cache_key)))
{
return $data;
}
$exec = new FfmpegProcess('ffmpeg', $this->_config);
$data = $exec->addCommand('-protocols')
->execute()
->getBuffer();
// check the process for any errors.
if($exec->hasError() === true)
{
throw new FfmpegProcessException('An error was encountered when attempting to read FFmpegs\' available protocols. FFmpeg reported: '.$exec->getLastLine(), null, $exec);
}
$this->_cacheSet($cache_key, $data);
return $data;
}
}
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