private void dmrVideo_RateChanged(object sender, Windows.UI.Xaml.Media.RateChangedRoutedEventArgs e)
 {
     if (IsReceiverStarted)
     {
         receiver.NotifyRateChange(dmrVideo.PlaybackRate);
     }
 }
 private void HandleReceiverPlaybackRateChangeRequested(PlayToReceiver sender, PlaybackRateChangeRequestedEventArgs args)
 {
     Dispatch(() =>
     {
         if (_currentPlaybackType == PlaybackType.Video)
         {
             VideoPlayer.PlaybackRate = args.Rate;
             // Receiver notification occurs in the HandleVideoPlayerRateChanged handler
         }
         else if (_currentPlaybackType == PlaybackType.Image)
         {
             // Setting playback rate is a no-op in image playback.  Just indicate it was accepted
             _receiver.NotifyRateChange(args.Rate);
         }
     });
 }