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<?php
namespace YouTube;
use YouTube\Models\SplitStream;
use YouTube\Models\StreamFormat;
use YouTube\Models\VideoDetails;
use YouTube\Utils\Utils;
// TODO: rename DownloaderResponse
class DownloadOptions
{
/** @var StreamFormat[] $formats */
private $formats;
/** @var VideoDetails|null */
private $info;
public function __construct($formats, $info = null)
{
$this->formats = $formats;
$this->info = $info;
}
/**
* @return StreamFormat[]
*/
public function getAllFormats()
{
return $this->formats;
}
/**
* @return VideoDetails|null
*/
public function getInfo()
{
return $this->info;
}
// Will not include Videos with Audio
public function getVideoFormats()
{
return Utils::arrayFilterReset($this->getAllFormats(), function ($format) {
/** @var $format StreamFormat */
return strpos($format->mimeType, 'video') === 0 && empty($format->audioQuality);
});
}
public function getAudioFormats()
{
return Utils::arrayFilterReset($this->getAllFormats(), function ($format) {
/** @var $format StreamFormat */
return strpos($format->mimeType, 'audio') === 0;
});
}
public function getCombinedFormats()
{
return Utils::arrayFilterReset($this->getAllFormats(), function ($format) {
/** @var $format StreamFormat */
return strpos($format->mimeType, 'video') === 0 && !empty($format->audioQuality);
});
}
/**
* @return StreamFormat|null
*/
public function getFirstCombinedFormat()
{
$combined = $this->getCombinedFormats();
return count($combined) ? $combined[0] : null;
}
protected function getLowToHighVideoFormats()
{
$copy = array_values($this->getVideoFormats());
usort($copy, function ($a, $b) {
/** @var StreamFormat $a */
/** @var StreamFormat $b */
return $a->height - $b->height;
});
return $copy;
}
protected function getLowToHighAudioFormats()
{
$copy = array_values($this->getAudioFormats());
// just assume higher filesize => higher quality...
usort($copy, function ($a, $b) {
/** @var StreamFormat $a */
/** @var StreamFormat $b */
return $a->contentLength - $b->contentLength;
});
return $copy;
}
// Combined using: ffmpeg -i video.mp4 -i audio.mp3 output.mp4
public function getSplitFormats($quality = null)
{
// sort formats by quality in desc, and high = first, medium = middle, low = last
$videos = $this->getLowToHighVideoFormats();
$audio = $this->getLowToHighAudioFormats();
if ($quality == 'high' || $quality == 'best') {
return new SplitStream([
'video' => $videos[count($videos) - 1],
'audio' => $audio[count($audio) - 1]
]);
} else if ($quality == 'low' || $quality == 'worst') {
return new SplitStream([
'video' => $videos[0],
'audio' => $audio[0]
]);
}
// something in between!
return new SplitStream([
'video' => $videos[floor(count($videos) / 2)],
'audio' => $audio[floor(count($audio) / 2)]
]);
}
}