scratch – Blame information for rev 120
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120 | office | 1 | <?php |
2 | |||
3 | /* |
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4 | * This file is part of PHP-FFmpeg. |
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5 | * |
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6 | * (c) Alchemy <dev.team@alchemy.fr> |
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7 | * |
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8 | * For the full copyright and license information, please view the LICENSE |
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9 | * file that was distributed with this source code. |
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10 | */ |
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11 | |||
12 | namespace FFMpeg\Filters\Video; |
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13 | |||
14 | use FFMpeg\Coordinate\FrameRate; |
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15 | use FFMpeg\Media\Video; |
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16 | use FFMpeg\Format\VideoInterface; |
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17 | |||
18 | class FrameRateFilter implements VideoFilterInterface |
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19 | { |
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20 | private $rate; |
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21 | private $gop; |
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22 | private $priority; |
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23 | |||
24 | public function __construct(FrameRate $rate, $gop, $priority = 0) |
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25 | { |
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26 | $this->rate = $rate; |
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27 | $this->gop = $gop; |
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28 | $this->priority = $priority; |
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29 | } |
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30 | |||
31 | /** |
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32 | * {@inheritdoc} |
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33 | */ |
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34 | public function getPriority() |
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35 | { |
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36 | return $this->priority; |
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37 | } |
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38 | |||
39 | /** |
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40 | * Returns the frame rate. |
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41 | * |
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42 | * @return FrameRate |
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43 | */ |
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44 | public function getFrameRate() |
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45 | { |
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46 | return $this->rate; |
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47 | } |
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48 | |||
49 | /** |
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50 | * Returns the GOP size. |
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51 | * |
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52 | * @see https://wikipedia.org/wiki/Group_of_pictures |
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53 | * |
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54 | * @return Integer |
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55 | */ |
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56 | public function getGOP() |
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57 | { |
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58 | return $this->gop; |
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59 | } |
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60 | |||
61 | /** |
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62 | * {@inheritdoc} |
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63 | */ |
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64 | public function apply(Video $video, VideoInterface $format) |
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65 | { |
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66 | $commands = array('-r', $this->rate->getValue()); |
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67 | |||
68 | /** |
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69 | * @see http://sites.google.com/site/linuxencoding/x264-ffmpeg-mapping |
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70 | */ |
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71 | if ($format->supportBFrames()) { |
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72 | $commands[] = '-b_strategy'; |
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73 | $commands[] = '1'; |
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74 | $commands[] = '-bf'; |
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75 | $commands[] = '3'; |
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76 | $commands[] = '-g'; |
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77 | $commands[] = $this->gop; |
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78 | } |
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79 | |||
80 | return $commands; |
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81 | } |
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82 | } |