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115 | 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 <info@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\Media; |
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13 | |||
14 | use Alchemy\BinaryDriver\Exception\ExecutionFailureException; |
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15 | use FFMpeg\Filters\Waveform\WaveformFilterInterface; |
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16 | use FFMpeg\Filters\Waveform\WaveformFilters; |
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17 | use FFMpeg\Driver\FFMpegDriver; |
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18 | use FFMpeg\FFProbe; |
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19 | use FFMpeg\Exception\RuntimeException; |
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20 | |||
21 | class Waveform extends AbstractMediaType |
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22 | { |
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23 | /** @var Video */ |
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24 | private $audio; |
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25 | private $width; |
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26 | private $height; |
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27 | |||
28 | public function __construct(Audio $audio, FFMpegDriver $driver, FFProbe $ffprobe, $width, $height) |
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29 | { |
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30 | parent::__construct($audio->getPathfile(), $driver, $ffprobe); |
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31 | $this->audio = $audio; |
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32 | $this->width = $width; |
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33 | $this->height = $height; |
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34 | } |
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35 | |||
36 | /** |
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37 | * Returns the audio related to the waveform. |
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38 | * |
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39 | * @return Audio |
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40 | */ |
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41 | public function getAudio() |
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42 | { |
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43 | return $this->audio; |
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44 | } |
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45 | |||
46 | /** |
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47 | * {@inheritdoc} |
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48 | * |
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49 | * @return WaveformFilters |
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50 | */ |
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51 | public function filters() |
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52 | { |
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53 | return new WaveformFilters($this); |
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54 | } |
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55 | |||
56 | /** |
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57 | * {@inheritdoc} |
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58 | * |
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59 | * @return Waveform |
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60 | */ |
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61 | public function addFilter(WaveformFilterInterface $filter) |
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62 | { |
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63 | $this->filters->add($filter); |
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64 | |||
65 | return $this; |
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66 | } |
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67 | |||
68 | /** |
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69 | * Saves the waveform in the given filename. |
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70 | * |
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71 | * @param string $pathfile |
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72 | * |
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73 | * @return Waveform |
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74 | * |
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75 | * @throws RuntimeException |
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76 | */ |
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77 | public function save($pathfile) |
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78 | { |
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79 | /** |
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80 | * might be optimized with http://ffmpeg.org/trac/ffmpeg/wiki/Seeking%20with%20FFmpeg |
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81 | * @see http://ffmpeg.org/ffmpeg.html#Main-options |
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82 | */ |
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83 | $commands = array( |
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84 | '-i', $this->pathfile, '-filter_complex', |
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85 | 'showwavespic=s='.$this->width.'x'.$this->height, |
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86 | '-frames:v', '1' |
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87 | ); |
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88 | |||
89 | foreach ($this->filters as $filter) { |
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90 | $commands = array_merge($commands, $filter->apply($this)); |
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91 | } |
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92 | |||
93 | $commands = array_merge($commands, array($pathfile)); |
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94 | |||
95 | try { |
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96 | $this->driver->command($commands); |
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97 | } catch (ExecutionFailureException $e) { |
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98 | $this->cleanupTemporaryFile($pathfile); |
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99 | throw new RuntimeException('Unable to save waveform', $e->getCode(), $e); |
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100 | } |
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101 | |||
102 | return $this; |
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103 | } |
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104 | } |