private void dmrVideo_MediaFailed(object sender, ExceptionRoutedEventArgs e)
 {
     if (IsReceiverStarted)
     {
         receiver.NotifyError();
     }
 }
 private void HandleVideoPlayerMediaFailed(Object sender, ExceptionRoutedEventArgs e)
 {
     if (_receiver != null)
     {
         _receiver.NotifyError();
     }
 }