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) Strime <contact@strime.io> |
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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\Waveform; |
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13 | |||
14 | use FFMpeg\Exception\RuntimeException; |
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15 | use FFMpeg\Media\Waveform; |
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16 | |||
17 | class WaveformDownmixFilter implements WaveformFilterInterface |
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18 | { |
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19 | |||
20 | /** @var boolean */ |
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21 | private $downmix; |
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22 | /** @var integer */ |
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23 | private $priority; |
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24 | |||
25 | // By default, the downmix value is set to FALSE. |
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26 | public function __construct($downmix = FALSE, $priority = 0) |
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27 | { |
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28 | $this->downmix = $downmix; |
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29 | $this->priority = $priority; |
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30 | } |
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31 | |||
32 | /** |
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33 | * {@inheritdoc} |
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34 | */ |
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35 | public function getDownmix() |
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36 | { |
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37 | return $this->downmix; |
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38 | } |
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39 | |||
40 | /** |
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41 | * {@inheritdoc} |
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42 | */ |
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43 | public function getPriority() |
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44 | { |
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45 | return $this->priority; |
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46 | } |
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47 | |||
48 | /** |
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49 | * {@inheritdoc} |
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50 | */ |
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51 | public function apply(Waveform $waveform) |
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52 | { |
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53 | $commands = array(); |
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54 | |||
55 | foreach ($waveform->getAudio()->getStreams() as $stream) { |
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56 | if ($stream->isAudio()) { |
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57 | try { |
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58 | |||
59 | // If the downmix parameter is set to TRUE, we add an option to the FFMPEG command |
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60 | if($this->downmix == TRUE) { |
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61 | $commands[] = '"aformat=channel_layouts=mono"'; |
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62 | } |
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63 | |||
64 | break; |
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65 | |||
66 | } catch (RuntimeException $e) { |
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67 | |||
68 | } |
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69 | } |
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70 | } |
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71 | |||
72 | return $commands; |
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73 | } |
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74 | } |