public void Play()
{
if (VideoPlayerElement.Source != null)
{
VideoPlayerElement.Play();
this.Background = Brushes.Gray;
MediaState = MediaState.Play;
}
}
public void Stop()
{
if (VideoPlayerElement.Source != null)
{
VideoPlayerElement.Stop();
this.Background = Brushes.DarkGray;
MediaState = MediaState.Stop;
}
}
private void OnDownloadOrPlayClick(object sender, RoutedEventArgs e)
{
if (media == null)
{
return;
}
if (!downloaded)
{
PlaybackButton.IsEnabled = false;
PlaybackButton.Content = "downloading...";
MessageMediaVideoConstructor mediaVideo = (MessageMediaVideoConstructor)media;
Task.Run(() => TelegramSession.Instance.Files.DownloadVideo(mediaVideo.video, Handler)).ContinueWith(
(result) => {
Deployment.Current.Dispatcher.BeginInvoke(() => {
videoSource = result.Result;
PlaybackButton.Content = "play";
PlaybackButton.IsEnabled = true;
PlaybackProgress.Visibility = Visibility.Collapsed;
downloaded = true;
});
});
}
else
{
PlaybackButton.Visibility = Visibility.Collapsed;
if (videoSource == null)
{
return;
}
using (var isf = IsolatedStorageFile.GetUserStoreForApplication()) {
using (var isfs = new IsolatedStorageFileStream(videoSource, FileMode.Open, FileAccess.Read, FileShare.Read, isf)) {
VideoPlayerElement.SetSource(isfs);
VideoPlayerElement.Play();
}
}
}
}
/// <summary>
/// Sometimes MediaElement crashes - black window
/// I will replace it with the new one
/// </summary>
internal void RecreateMediaElement(bool flipHorizontally)
{
try
{
if (VideoPlayerElement != null)
{
VideoPlayerElement.Stop();
VideoPlayerElement.Close();
VideoPlayerElement.Clock = null;
VideoPlayerElement.Source = null;
VideoPlayerElement.Volume = 0;
VideoPlayerElement = null;
scrollPlayer.Content = null;
GC.Collect();
GC.WaitForPendingFinalizers();
}
MediaState = MediaState.Manual;
VideoPlayerElement = new MediaElement();
VideoPlayerElement.Width = 1920;
VideoPlayerElement.Height = 1080;
VideoPlayerElement.LoadedBehavior = MediaState.Manual;
VideoPlayerElement.Stretch = Stretch.Uniform;
VideoPlayerElement.MouseWheel += mePlayer_MouseWheel;
Volume = 0; //reset
scrollPlayer.Content = VideoPlayerElement;
double vOff = _scrollDragger.VerticalOffset;
double zoom = _scrollDragger.Zoom;
_scrollDragger = new ScrollDragZoom(VideoPlayerElement, scrollPlayer);
_scrollDragger.Zoom = zoom;
_scrollDragger.VerticalOffset = vOff;
_scrollDragger.SizeChangedAction = () =>
{
txtVideoResolution.Text = string.Format("{0:0}x{1:0} ({2:0.0}%)",
VideoPlayerElement.ActualWidth, VideoPlayerElement.ActualHeight, 100.0 * _scrollDragger.Zoom);
};
//refresh view when change position
VideoPlayerElement.ScrubbingEnabled = true;
AddFlipXRenderTransform(VideoPlayerElement, flipHorizontally);
VideoPlayerElement.MediaOpened += (s, e) =>
{
double zoom_save = _scrollDragger.Zoom;
_scrollDragger.NaturalSize = new Size(VideoPlayerElement.NaturalVideoWidth, VideoPlayerElement.NaturalVideoHeight);
_scrollDragger.Zoom = zoom_save;
MediaState = GetMediaState(VideoPlayerElement);
VideoStarted(this);
};
VideoPlayerElement.MediaEnded += (s, e) => { VideoEnded(); };
VideoPlayerElement.MediaFailed += (s, e) => { e.Handled = VideoFailed(e, VideoPlayerElement); };
}
catch (Exception err)
{
MessageBox.Show(err.ToString());
}
}
