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<?php
namespace FFMpeg\Filters\AdvancedMedia;
use FFMpeg\Media\AdvancedMedia;
/**
* @see https://ffmpeg.org/ffmpeg-filters.html#sine
*/
class SineFilter extends AbstractComplexFilter
{
/**
* @var int|null
*/
private $frequency;
/**
* @var string|null
*/
private $beep_factor;
/**
* @var int|null
*/
private $sample_rate;
/**
* @var string
*/
private $duration;
/**
* @var string|null
*/
private $samples_per_frame;
/**
* SineComplexFilter constructor.
*
* @param string $duration
* @param int|null $frequency
* @param string|null $beep_factor
* @param int|null $sample_rate
* @param string|null $samples_per_frame
* @param int $priority
*/
public function __construct($duration, $frequency, $beep_factor, $sample_rate, $samples_per_frame, $priority = 0)
{
parent::__construct($priority);
$this->duration = $duration;
$this->frequency = $frequency;
$this->beep_factor = $beep_factor;
$this->sample_rate = $sample_rate;
$this->samples_per_frame = $samples_per_frame;
}
/**
* Get name of the filter.
*
* @return string
*/
public function getName()
{
return 'sine';
}
/**
* Get minimal version of ffmpeg starting with which this filter is supported.
*
* @return string
*/
public function getMinimalFFMpegVersion()
{
return '2.0';
}
/**
* Apply the complex filter to the given media.
*
* @return string[] an array of arguments
*/
public function applyComplex(AdvancedMedia $media)
{
return [
'-filter_complex',
$this->getName().$this->buildFilterOptions([
'frequency' => $this->frequency,
'beep_factor' => $this->beep_factor,
'sample_rate' => $this->sample_rate,
'duration' => $this->duration,
'samples_per_frame' => $this->samples_per_frame,
]),
];
}
}