/**
* Exports the audio in the desired format, applies registered filters.
*
* @param FormatInterface $format
* @param string $outputPathfile
*
* @return Audio
*
* @throws RuntimeException
*/
public function save(FormatInterface $format, $outputPathfile)
{
$listeners = null;
if ($format instanceof ProgressableInterface) {
$listeners = $format->createProgressListener($this, $this->ffprobe, 1, 1);
}
$commands = array('-y', '-i', $this->filePath);
$filters = clone $this->filters;
$filters->add(new SimpleFilter($format->getExtraParams(), 10));
if ($this->driver->getConfiguration()->has('ffmpeg.threads')) {
$filters->add(new SimpleFilter(array('-threads', $this->driver->getConfiguration()->get('ffmpeg.threads'))));
}
if (null !== $format->getAudioCodec()) {
$filters->add(new SimpleFilter(array('-acodec', $format->getAudioCodec())));
}
foreach ($filters as $filter) {
$commands = array_merge($commands, $filter->apply($this, $format));
}
if (null !== $format->getAudioKiloBitrate()) {
$commands[] = '-b:a';
$commands[] = $format->getAudioKiloBitrate() . 'k';
}
if (null !== $format->getAudioChannels()) {
$commands[] = '-ac';
$commands[] = $format->getAudioChannels();
}
$commands[] = $outputPathfile;
try {
$this->driver->command($commands, false, $listeners);
} catch (ExecutionFailureException $e) {
$this->cleanupTemporaryFile($outputPathfile);
throw new RuntimeException('Encoding failed', $e->getCode(), $e);
}
return $this;
}
