private function removeTrackFile(Track $track)
 {
     $path = $this->fileDir . DIRECTORY_SEPARATOR . $track->getTrackFile()->getHashName();
     if (file_exists($path)) {
         unlink($path);
     }
     $this->om->remove($track->getTrackFile());
 }
 /**
  * @Get("/video/track/{track}/stream", name="get_video_track_stream", options={ "method_prefix" = false })
  * @View(serializerGroups={"api_video"})
  */
 public function streamTrackAction(Track $track)
 {
     $this->throwExceptionIfNotGranted($track->getVideo(), 'OPEN');
     $file = $track->getTrackFile();
     return $this->returnFile($file);
 }