/**
* Extract file meta data
*
* @param File $file file instance
* @return Meta
*/
protected function extractInformation(File $file)
{
$meta = new Meta();
$meta->id = $file->getId();
$meta->originId = $file->getOriginId(false);
$tmpPathname = $this->temp->getTempPathname();
$this->temp->createFile($tmpPathname, $this->storage->read($file));
$info = $this->reader->analyze($tmpPathname);
$this->temp->remove($tmpPathname);
if (isset($info['audio']['streams'])) {
unset($info['audio']['streams']);
}
$meta->audio = $info['audio'];
$meta->playtime = $info['playtime_seconds'];
$meta->bitrate = $info['bitrate'];
return $meta;
}
/**
* 영상에서 snapshot 추출
*
* @param string $content media content
* @param int $fromSecond 영상에서의 시간(초 단위)
* @return string
*/
public function getSnapshot($content, $fromSecond = 10)
{
$tmpPathname = $this->temp->getTempPathname();
$tmpImgPathname = $this->temp->getTempPathname();
$this->temp->createFile($tmpPathname, $content);
$video = $this->ffmpeg->open($tmpPathname);
$video->frame(TimeCode::fromSeconds($fromSecond))->save($tmpImgPathname);
$imageContent = file_get_contents($tmpImgPathname);
$this->temp->remove($tmpPathname);
$this->temp->remove($tmpImgPathname);
return $imageContent;
}