105 lines
2.5 KiB
PHP
105 lines
2.5 KiB
PHP
<?php
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/*
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* This file is part of PHP-FFmpeg.
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*
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* (c) Alchemy <info@alchemy.fr>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace FFMpeg\Media;
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use Alchemy\BinaryDriver\Exception\ExecutionFailureException;
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use FFMpeg\Filters\Waveform\WaveformFilterInterface;
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use FFMpeg\Filters\Waveform\WaveformFilters;
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use FFMpeg\Driver\FFMpegDriver;
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use FFMpeg\FFProbe;
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use FFMpeg\Exception\RuntimeException;
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use FFMpeg\Coordinate\TimeCode;
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class Waveform extends AbstractMediaType
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{
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/** @var Video */
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private $video;
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private $width;
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private $height;
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public function __construct(Audio $audio, FFMpegDriver $driver, FFProbe $ffprobe, $width, $height)
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{
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parent::__construct($video->getPathfile(), $driver, $ffprobe);
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$this->video = $video;
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$this->width = $width;
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$this->height = $height;
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}
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/**
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* Returns the video related to the waveform.
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*
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* @return Video
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*/
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public function getVideo()
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{
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return $this->video;
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}
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/**
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* {@inheritdoc}
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*
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* @return WaveformFilters
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*/
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public function filters()
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{
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return new WaveformFilters($this);
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}
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/**
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* {@inheritdoc}
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*
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* @return Waveform
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*/
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public function addFilter(WaveformFilterInterface $filter)
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{
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$this->filters->add($filter);
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return $this;
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}
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/**
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* Saves the waveform in the given filename.
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*
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* @param string $pathfile
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*
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* @return Waveform
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*
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* @throws RuntimeException
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*/
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public function save($pathfile)
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{
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/**
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* might be optimized with http://ffmpeg.org/trac/ffmpeg/wiki/Seeking%20with%20FFmpeg
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* @see http://ffmpeg.org/ffmpeg.html#Main-options
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*/
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$commands = array(
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'-i', $this->pathfile, '-filter_complex',
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'showwavespic=s='.$this->width.'x'.$this->height,
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'-frames:v', '1'
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);
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foreach ($this->filters as $filter) {
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$commands = array_merge($commands, $filter->apply($this));
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}
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$commands = array_merge($commands, array($pathfile));
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try {
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$this->driver->command($commands);
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} catch (ExecutionFailureException $e) {
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$this->cleanupTemporaryFile($pathfile);
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throw new RuntimeException('Unable to save waveform', $e->getCode(), $e);
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}
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return $this;
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}
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}
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