<?php
/*
* This file is part of PHP-FFmpeg.
*
* (c) Alchemy <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace FFMpeg\Filters\Audio;
use FFMpeg\Filters\Audio\AddMetadataFilter;
use FFMpeg\Media\Audio;
use FFMpeg\Coordinate\TimeCode;
class AudioFilters
{
protected $media;
public function __construct(Audio $media)
{
$this->media = $media;
}
/**
* Resamples the audio file.
*
* @param Integer $rate
*
* @return AudioFilters
*/
public function resample($rate)
{
$this->media->addFilter(new AudioResamplableFilter($rate));
return $this;
}
/**
* Add metadata to an audio file. If no arguments are given then filter
* will remove all metadata from the audio file
* @param Array|Null $data If array must contain one of these key/value pairs:
* - "title": Title metadata
* - "artist": Artist metadata
* - "composer": Composer metadata
* - "album": Album metadata
* - "track": Track metadata
* - "artwork": Song artwork. String of file path
* - "year": Year metadata
* - "genre": Genre metadata
* - "description": Description metadata
*/
public function addMetadata($data = null)
{
$this->media->addFilter(new AddMetadataFilter($data));
return $this;
}
/**
* Cuts the audio at `$start`, optionally define the end
*
* @param TimeCode $start Where the clipping starts(seek to time)
* @param TimeCode $duration How long the clipped audio should be
* @return AudioFilters
*/
public function clip($start, $duration = null) {
$this->media->addFilter(new AudioClipFilter($start, $duration));
return $this;
}
/**
* Applies a custom filter
*
* @param string $parameters
*
* @return AudioFilters
*/
public function custom($parameters)
{
$this->media->addFilter(new CustomFilter($parameters));
return $this;
}
}