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| /vendor/php-ffmpeg/php-ffmpeg/src/FFMpeg/Filters/Video/FrameRateFilter.php |
|---|
| @@ -0,0 +1,82 @@ |
| <?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 FFMpeg\Filters\Video; |
| use FFMpeg\Coordinate\FrameRate; |
| use FFMpeg\Media\Video; |
| use FFMpeg\Format\VideoInterface; |
| 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 Integer |
| */ |
| public function getGOP() |
| { |
| return $this->gop; |
| } |
| /** |
| * {@inheritdoc} |
| */ |
| public function apply(Video $video, VideoInterface $format) |
| { |
| $commands = array('-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; |
| } |
| } |