Файл: vendor/php-ffmpeg/php-ffmpeg/src/FFMpeg/Filters/Video/FrameRateFilter.php
Строк: 45
<?php
/*
* This file is part of PHP-FFmpeg.
*
* (c) Alchemy <dev.team@alchemy.fr>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace FFMpegFiltersVideo;
use FFMpegCoordinateFrameRate;
use FFMpegFormatVideoInterface;
use FFMpegMediaVideo;
class FrameRateFilter implements VideoFilterInterface
{
private $rate;
private $gop;
private $priority;
public function __construct(FrameRate $rate, $gop, $priority = 0)
{
$this->rate = $rate;
$this->gop = $gop;
$this->priority = $priority;
}
/**
* {@inheritdoc}
*/
public function getPriority()
{
return $this->priority;
}
/**
* Returns the frame rate.
*
* @return FrameRate
*/
public function getFrameRate()
{
return $this->rate;
}
/**
* Returns the GOP size.
*
* @see https://wikipedia.org/wiki/Group_of_pictures
*
* @return int
*/
public function getGOP()
{
return $this->gop;
}
/**
* {@inheritdoc}
*/
public function apply(Video $video, VideoInterface $format)
{
$commands = ['-r', $this->rate->getValue()];
/*
* @see http://sites.google.com/site/linuxencoding/x264-ffmpeg-mapping
*/
if ($format->supportBFrames()) {
$commands[] = '-b_strategy';
$commands[] = '1';
$commands[] = '-bf';
$commands[] = '3';
$commands[] = '-g';
$commands[] = $this->gop;
}
return $commands;
}
}