/**
* {@inheritdoc}
* @throws LiveBroadcastInputException
*/
public function generateInputCmd()
{
$monitorImage = $this->media->getMonitorImage();
if (!file_exists($monitorImage)) {
throw new LiveBroadcastInputException(sprintf('Monitor image \'%s\' not found', $monitorImage));
}
return sprintf('-re -f lavfi -i anullsrc=r=48000 -r 1 -loop 1 -i %s', escapeshellarg($monitorImage));
}
/**
* Start a monitor stream with a placeholder image
*
* @param YouTubeEvent $event
* @throws \InvalidArgumentException
* @throws \RuntimeException
* @throws \Martin1982\LiveBroadcastBundle\Exception\LiveBroadcastInputException
*/
protected function startMonitorStream(YouTubeEvent $event)
{
$placeholderImage = $this->kernel->locateResource('@LiveBroadcastBundle') . '/Resources/images/placeholder.png';
$inputMedia = new MediaMonitorStream();
$inputMedia->setMonitorImage($placeholderImage);
$inputService = new InputMonitorStream();
$inputService->setMedia($inputMedia);
$streamUrl = $this->getYouTubeApiService()->getStreamUrl($event->getBroadcast(), $event->getChannel());
$outputService = new OutputYouTube();
$outputService->setChannel($event->getChannel());
$outputService->setStreamUrl($streamUrl);
$metadata = array('broadcast_id' => $event->getBroadcast()->getBroadcastId(), 'channel_id' => $event->getChannel()->getChannelId(), 'monitor_stream' => 'yes');
try {
$this->logger->info('YouTube start monitor stream', array('broadcast_id' => $metadata['broadcast_id']));
$this->commands->startProcess($inputService->generateInputCmd(), $outputService->generateOutputCmd(), $metadata);
} catch (LiveBroadcastOutputException $e) {
return;
}
}
