async private void MediaPlayer_MediaFailed(Windows.Media.Playback.MediaPlayer sender, MediaPlayerFailedEventArgs args)
{
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() =>
{
await new MessageDialog("不支持该视频或音频的播放！请重新选择文件。").ShowAsync();
});
}
private void OnMediaOpened(Windows.Media.Playback.MediaPlayer session, object args)
{
Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
TogglePosterImage(false);
});
}
protected override void OnApplyTemplate()
{
base.OnApplyTemplate();
_layoutRoot = this.GetTemplateChild(LayoutRootName) as Grid;
_posterImage = this.GetTemplateChild(PosterImageName) as Image;
_mediaPlayerPresenter = this.GetTemplateChild(MediaPlayerPresenterName) as MediaPlayerPresenter;
_transportControlsPresenter = this.GetTemplateChild(TransportControlsPresenterName) as ContentPresenter;
_transportControlsPresenter.Content = TransportControls;
TransportControls.ApplyTemplate();
if (MediaPlayer == null)
{
MediaPlayer = new Windows.Media.Playback.MediaPlayer();
_mediaPlayerPresenter?.ApplyStretch();
}
if (!IsLoaded && MediaPlayer.PlaybackSession.PlaybackState == MediaPlaybackState.None)
{
TogglePosterImage(true);
}
if (!_isTransportControlsBound)
{
TransportControls?.SetMediaPlayer(MediaPlayer);
_isTransportControlsBound = true;
}
}
private void OnMediaFailed(Windows.Media.Playback.MediaPlayer sender, MediaPlayerFailedEventArgs args)
{
Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
Visibility = Visibility.Collapsed;
});
}
protected override void OnApplyTemplate()
{
base.OnApplyTemplate();
_posterImage = this.GetTemplateChild(PosterImageName) as Image;
_mediaPlayerPresenter = this.GetTemplateChild(MediaPlayerPresenterName) as MediaPlayerPresenter;
_transportControlsPresenter = this.GetTemplateChild(TransportControlsPresenterName) as ContentPresenter;
_transportControlsPresenter.Content = TransportControls;
TransportControls.ApplyTemplate();
if (MediaPlayer == null)
{
MediaPlayer = new Windows.Media.Playback.MediaPlayer();
}
if (PosterSource != null && MediaPlayer.PlaybackSession.PlaybackState == MediaPlaybackState.None)
{
_posterImage.Visibility = Visibility.Visible;
_mediaPlayerPresenter.Opacity = 0;
}
if (!_isTransportControlsBound)
{
TransportControls?.SetMediaPlayer(MediaPlayer);
_isTransportControlsBound = true;
}
}
private async void MediaPlayer_MediaEnded(Windows.Media.Playback.MediaPlayer sender, object args)
{
await AssociatedObject.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
MediaCommand?.Execute(ResultMediaPlayer.Ended);
});
}
private void MediaPlayer_MediaOpened(Windows.Media.Playback.MediaPlayer sender, object args)
{
// don't need this because MediaPlayerElement in XAML already auto starts if
// our autostart property is true
//if (this.AutoPlay)
//{
// this.StartPlayer();
//}
}
public MediaPlayerService()
{
_player = new Windows.Media.Playback.MediaPlayer {
IsLoopingEnabled = true
};
_dispatcherQueue = DispatcherQueue.GetForCurrentThread();
_player.PlaybackSession.PlaybackStateChanged += PlaybackSession_PlaybackStateChanged;
}
public BackgroundPlaylist()
{
ListPathsource = new List<string>();
mediaplayer = BackgroundMediaPlayer.Current;
mediaplayer.MediaOpened += mediaplayer_MediaOpened;
mediaplayer.MediaEnded += mediaplayer_MediaEnded;
mediaplayer.CurrentStateChanged += mediaplayer_CurrentStateChanged;
mediaplayer.MediaFailed += mediaplayer_MediaFailed;
mediaplayer.AutoPlay = false;
}
private void OnMediaFailed(Windows.Media.Playback.MediaPlayer session, object args)
{
Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
if (PosterSource != null && _posterImage != null)
{
_posterImage.Visibility = Visibility.Visible;
_mediaPlayerPresenter.Opacity = 0;
}
});
}
private void OnVideoRatioChanged(Windows.Media.Playback.MediaPlayer sender, double args)
{
_currentRatio = args;
Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
Visibility = Visibility.Visible;
});
InvalidateArrange();
}
internal void SetMediaPlayer(Windows.Media.Playback.MediaPlayer mediaPlayer)
{
UnbindMediaPlayer();
_mediaPlayer = mediaPlayer;
if (_playPauseButton != null)
{
BindMediaPlayer();
}
}
private void OnMediaOpened(Windows.Media.Playback.MediaPlayer session, object args)
{
Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
if (_posterImage != null)
{
_posterImage.Visibility = Visibility.Collapsed;
_mediaPlayerPresenter.Opacity = 1;
}
});
}
public static void CleanUpMediaPlayerSource(Windows.Media.Playback.MediaPlayer mp)
{
if (mp?.Source != null)
{
var source = mp.Source as Windows.Media.Core.MediaSource;
source?.Dispose();
var item = mp.Source as Windows.Media.Playback.MediaPlaybackItem;
item?.Source?.Dispose();
mp.Source = null;
}
}
private void OnVideoRatioChanged(Windows.Media.Playback.MediaPlayer sender, double args)
{
if (args > 0) // The VideoRect may initially be empty, ignore because a 0 ratio will lead to infinite dims being returned on measure, resulting in an exception
{
_currentRatio = args;
}
Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
Visibility = Visibility.Visible;
});
InvalidateArrange();
}
private void OnMediaStateChanged(Windows.Media.Playback.MediaPlayer sender, object args)
{
RunOnMainThread(() =>
{
if (sender == localVideoPlayer)
{
localVideoStateText.Text = $"State: {sender.PlaybackSession.PlaybackState}";
}
else if (sender == remoteVideoPlayer)
{
remoteVideoStateText.Text = $"State: {sender.PlaybackSession.PlaybackState}";
}
});
}
//选择文件
private async void OpenFileClick(object sender, RoutedEventArgs e)
{
FileOpenPicker fileOpenPicker = new FileOpenPicker();
fileOpenPicker.ViewMode = PickerViewMode.Thumbnail;
fileOpenPicker.SuggestedStartLocation = PickerLocationId.VideosLibrary;
fileOpenPicker.FileTypeFilter.Add(".mp4");
fileOpenPicker.FileTypeFilter.Add(".wmv");
fileOpenPicker.FileTypeFilter.Add(".wma");
fileOpenPicker.FileTypeFilter.Add(".mp3");
StorageFile file = await fileOpenPicker.PickSingleFileAsync();
if (file != null)
{
var stream = await file.OpenAsync(Windows.Storage.FileAccessMode.Read);
mediaPlayer = new Windows.Media.Playback.MediaPlayer();
mediaSource = MediaSource.CreateFromStream(stream, file.ContentType);
title.Text = file.Name;
}
else
{
mediaPlayer = new Windows.Media.Playback.MediaPlayer();
mediaSource = MediaSource.CreateFromUri(new Uri("ms-appx:///Assets/week4.mp4"));
title.Text = "week4";
}
mediaSource.OpenOperationCompleted += MediaSourceOpenOperationCompleted;
mediaPlayer.Source = mediaSource;
mediaPlayerElement.SetMediaPlayer(mediaPlayer);
mediaTimeline = new MediaTimelineController();
mediaPlayer.CommandManager.IsEnabled = false;
mediaPlayer.TimelineController = mediaTimeline;
mediaTimeline.IsLoopingEnabled = true;
mediaTimeline.PositionChanged += MediaTimelinePositionChanged;
if (file != null && file.ContentType == "audio/mpeg")
{
cover.Visibility = Visibility.Visible;
fullScreenButton.IsEnabled = false;
}
else
{
cover.Visibility = Visibility.Collapsed;
fullScreenButton.IsEnabled = true;
}
RestartClick(sender, e);
}
public MainPage()
{
this.InitializeComponent();
mediaPlayer = new MediaPlayer();
captureDeviceList = new ObservableCollection <DeviceInformation>();
captureDeviceListView.ItemsSource = captureDeviceList;
renderDeviceList = new ObservableCollection <DeviceInformation>();
renderDeviceListView.ItemsSource = renderDeviceList;
renderDeviceListView.SelectionChanged += RenderDeviceListView_SelectionChanged;
outputTextBlock.Text = "Ready to record.";
mediaPlayer.MediaEnded += MediaPlayer_MediaEnded;
}
private static void Current_CurrentPlayerStateChanged(Windows.Media.Playback.MediaPlayer sender, object args)
{
if (UDPServer.Current.ClientList?.Count > 0)
{
SendPlayerStateChanged(sender.CurrentState);
}
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
if (sender.CurrentState == MediaPlayerState.Playing)
{
SendTrackChanged(MediaController.Current.CurrentPlayingIndex);
_positionUpdateTimer?.Start();
}
else
{
_positionUpdateTimer?.Stop();
}
});
}
public AudioPlayer(Slider trackSlider, TextBlock textBlockProgress)
{
Slider = trackSlider;
MediaPlayer = new MediaPlayer();
DispatcherTimer timer = new DispatcherTimer {
Interval = TimeSpan.FromSeconds(1)
};
timer.Tick += timer_Tick;
timer.Start();
SystemControls = MediaPlayer.SystemMediaTransportControls;
TextBlockProgress = textBlockProgress;
SystemControls.ButtonPressed += SystemControls_ButtonPressed;
SystemControls.IsPlayEnabled = true;
SystemControls.IsPauseEnabled = true;
SystemControls.IsNextEnabled = true;
SystemControls.IsPreviousEnabled = true;
}
private void CurrentPlayer_SeekCompleted(Windows.Media.Playback.MediaPlayer sender, object args)
{
_playerSession?.NotifySeekCompleted();
}
private void CurrentPlayer_MediaFailed(Windows.Media.Playback.MediaPlayer sender, Windows.Media.Playback.MediaPlayerFailedEventArgs args)
{
}
private async void MediaPlayer_CurrentStateChanged(MediaPlayer sender, object args)
{
await App.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => Instance_CurrentStateChanged(null, new RoutedEventArgs()));
}
private async void MediaPlayer_CurrentStateChanged(MediaPlayer sender, object args)
{
await App.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => Instance_CurrentStateChanged(null, new RoutedEventArgs()));
}
private void CurrentPlayer_MediaOpened(Windows.Media.Playback.MediaPlayer sender, object args)
{
_playerSession?.NotifyMediaOpened();
}
private void CurrentPlayer_CurrentStateChanged(Windows.Media.Playback.MediaPlayer sender, object args)
{
_playerSession?.NotifyControllerStateChanged(sender.CurrentState);
}
private static void CurrentPlayer_VolumeChanged(Windows.Media.Playback.MediaPlayer sender, object args)
{
SendVolumeChanged(sender.Volume);
}
private void MediaPlayer_MediaOpened(Windows.Media.Playback.MediaPlayer sender, object args)
{
//RaiseReadyEvent(this, args);
this.StartPlayer();
}
private void OnVideoRatioChanged(Windows.Media.Playback.MediaPlayer sender, double args)
{
_currentRatio = args;
InvalidateArrange();
}
private async void MediaPlayer_MediaEnded(Windows.Media.Playback.MediaPlayer sender, object args)
{
await SetNextVideo();
}
public void SetMediaPlayer(Windows.Media.Playback.MediaPlayer mediaPlayer)
{
MediaPlayer = mediaPlayer;
}
private void MediaPlayer_MediaOpened(Windows.Media.Playback.MediaPlayer sender, object args)
{
media.Max = sender.PlaybackSession.NaturalDuration.TotalSeconds;
}
