private async void OpenVideoFileAndPlay(StorageFile videoFile)
{
var videoStream = await videoFile.OpenAsync(FileAccessMode.Read);
VideoElement.SetSource(videoStream, videoFile.ContentType);
nameBlock.Text = videoFile.DisplayName;
}
private async void Commands_LoadMedia(object sender, ExecutedRoutedEventArgs e)
{
Command_UnloadMedia(null, null);
CommonOpenFileDialog fileDialog = new CommonOpenFileDialog
{
Title = "打开媒体文件",
DefaultDirectory = Environment.CurrentDirectory,
IsFolderPicker = false,
AllowNonFileSystemItems = true,
EnsurePathExists = true,
Multiselect = false,
//Filters = { new CommonFileDialogFilter("波形音频", ".wav") },
EnsureFileExists = true
};
if (fileDialog.ShowDialog() != CommonFileDialogResult.Ok)
{
return;
}
if (!DockControl?.IsVisible ?? true)
{
DockControl?.Show();
}
MediaLoaded = true;
Playing = true;
//MediaPlayer.Play(new Media(_libVLC, fileDialog.FileName));
await VideoElement.Open(new Uri(fileDialog.FileName));
await VideoElement.Play();
}
private async void PageLoaded(object sender, RoutedEventArgs e)
{
VideoElement.MediaOpened += (s, args) =>
{
Progress.Maximum = VideoElement.NaturalDuration.TimeSpan.TotalSeconds;
DurationLabel.Text = VideoElement.NaturalDuration.TimeSpan.ToString(@"hh\:mm\:ss");
};
IRandomAccessStream source = null;
do
{
source = await GetSource();
} while (source == null);
VideoElement.SetSource(source, "");
Progress.Minimum = 0;
Progress.IsThumbToolTipEnabled = false;
_timer = new DispatcherTimer()
{
Interval = TimeSpan.FromSeconds(0.2)
};
_timer.Tick += UpdateVideoPosition;
_timer.Start();
SystemNavigationManager.GetForCurrentView().BackRequested += NavigateBackRequested;
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility =
Frame.CanGoBack ?
AppViewBackButtonVisibility.Visible :
AppViewBackButtonVisibility.Collapsed;
}
/// <summary>
/// Play next song in playlist.
/// </summary>
public async void BtnPlay_Click(object sender, RoutedEventArgs e)
{
_videoPlay = true;
_forcePaused = false;
if (ComponentPlayer.Current == null)
{
BtnOpen_Click(sender, e);
return;
}
switch (ComponentPlayer.Current.PlayerStatus)
{
case PlayerStatus.Playing:
if (VideoElement?.Source != null)
{
await VideoElement.Pause();
}
PauseMedia();
break;
case PlayerStatus.Ready:
case PlayerStatus.Stopped:
case PlayerStatus.Paused:
if (VideoElement?.Source != null)
{
await VideoElement.Play();
}
PlayMedia();
break;
}
}
//接受語音事件
private void SreSpeechRecognized(object sender, SpeechRecognizedEventArgs e)
{
/*
* if (e.Result.Confidence < 0.2)//肯定度低於0.6，判為錯誤語句
* {
* return;
* }*/
switch (e.Result.Text.ToUpperInvariant())
{
case "STOP":
VideoElement.Pause();
break;
case "PLAY":
VideoElement.Play();
break;
case "LOUD":
VideoElement.Volume += 2;
break;
case "XIAO SHENG":
VideoElement.Volume += -1;
break;
case "TIMEOUT":
unit = 7;
MessageBox.Show("暫停");
break;
}
}
private async void MediaPlayer_MediaOpenedAsync(FrameMediaPlayer sender, object args)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
VideoElement.SetMediaPlayer(mediaPlayer.MediaPlayer);
});
}
public void a_foreach_and_multiple_current_items_in_custom_element_produces_the_correct_html_output()
{
var video = new VideoElement();
var values = new [] { "one", "two" };
video.OuterXml.ShouldBe("<div><ul><li><a href=\"one\">one</a></li><li><a href=\"two\">two</a></li></ul></div>");
}
protected override void OnNavigatedFrom(NavigationEventArgs e)
{
base.OnNavigatedFrom(e);
VideoElement.Stop();
_timer.Stop();
_timer.Tick -= UpdateVideoPosition;
SystemNavigationManager.GetForCurrentView().BackRequested -= NavigateBackRequested;
}
private async Task PlayVideo()
{
if (VideoElement.MediaState == MediaPlaybackState.Play)
{
return;
}
await VideoElement.Play();
}
private async Task PauseVideo()
{
if (VideoElement.MediaState != MediaPlaybackState.Play)
{
return;
}
await VideoElement.Pause();
}
private async Task StopVideo()
{
if (VideoElement.MediaState != MediaPlaybackState.Play)
{
return;
}
await VideoElement.Stop();
}
private void SetupVideo()
{
VideoElement.Source = new Uri(Settings.Default.VideoSource);
VideoElement.MediaEnded += (sender, args) =>
{
VideoElement.Stop();
PlayButton.Visibility = Visibility.Visible;
_mainWindows.Show();
};
}
private async void Command_UnloadMedia(object sender, ExecutedRoutedEventArgs e)
{
//MediaPlayer.Stop();
await VideoElement.Stop();
await VideoElement.Close();
MediaLoaded = false;
Position.Time = 0;
}
private void SeekToPosition(long time)
{
var target = TimeSpan.FromMilliseconds(time);
if (target.TotalMilliseconds < 0)
{
target = TimeSpan.Zero;
}
VideoElement.Seek(target).GetAwaiter().GetResult();
Position.Time = (long)target.TotalMilliseconds;
}
private void SetUpVideo() //get the incoming video object, load it into MediaElement for playback and pause it
{
VideoElement.Source = new Uri(VideoPath, UriKind.Absolute);
VideoElement.MediaFailed += MediaFailed;
VideoElement.Loaded += MediaLoaded;
VideoElement.Pause();
GetVideoDuration(); //get videos duration
TimeSpan time = TimeSpan.FromSeconds(0); //go to the beginning of of the video
VideoElement.Position = time;
}
public void JumpDuration(long duration)
{
var target = VideoElement.Position + TimeSpan.FromMilliseconds(duration);
if (target.TotalMilliseconds < 0)
{
target = TimeSpan.Zero;
}
VideoElement.Seek(target).GetAwaiter().GetResult();
Position.Time = (long)target.TotalMilliseconds;
}
private IEnumerable <VideoElement> UpdateFileOnTempDirectory(VideoElement video)
{
var content = FileProvider.ReadAllText(_filePath);
var videos = JsonConvert.DeserializeObject <List <VideoElement> >(content) ?? new List <VideoElement>();
videos.Add(video);
CreateFileOnTempDirectory(videos);
return(videos);
}
private void PlayStopButtonClick(object sender, RoutedEventArgs e)
{
if (PlayButton.IsChecked.Value)
{
VideoElement.Play();
PlayButton.Content = "\ue103";
}
else
{
VideoElement.Pause();
PlayButton.Content = "\ue102";
}
}
private async void VideoElement_MediaOpened(object sender, RoutedEventArgs e)
{
VideoElementBorder.Visibility = Visibility.Visible;
if (!_videoPlay)
{
return;
}
await Task.Run(() => _waitAction?.Invoke());
await VideoElement.Play();
VideoElement.Position = _position;
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Visible;
Uri sourceUri = (Uri)e.Parameter;
if (sourceUri != null)
{
mediaPlayer = new MediaPlayer();
MediaSource source = MediaSource.CreateFromUri(sourceUri);
mediaPlayer.Source = source;
mediaPlayer.MediaOpened += MediaPlayer_MediaOpened;
VideoElement.SetMediaPlayer(mediaPlayer);
}
}
private void ControllerViewModel_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
var property = typeof(TelloControllerViewModel).GetProperty(e.PropertyName);
var value = property.GetValue(sender);
Debug.WriteLine($"{nameof(ControllerViewModel_PropertyChanged)} - property '{e.PropertyName}', value '{value}'");
if (e.PropertyName == nameof(TelloControllerViewModel.IsVideoStreaming) && (bool)value)
{
VideoElement.Play();
}
else
{
VideoElement.Stop();
}
}
public PlaybackView()
{
InitializeComponent();
VideoElement.PositionChanged += (o, args) =>
Position.Time = (long)args.Position.TotalMilliseconds;
VideoElement.MediaOpened += (o, args) =>
Position.Total = (long)args.Info.Duration.TotalMilliseconds;
VideoElement.MediaFailed += (o, args) => Console.WriteLine(@"[FFME] MediaFailed : " + args.ErrorException);
VideoElement.MediaEnded += async(o, args) =>
{
await VideoElement.Seek(TimeSpan.Zero);
await VideoElement.Play();
};
//VideoElement.RenderingVideo += RenderPreviewOnVideo;
Position.OnPositionActiveChanged += () => SeekToPosition(Position.Time);
}
public IEnumerable <VideoElement> UpdateJsonFileWithValue(VideoElement video)
{
if (FileProvider.Exists(_filePath))
{
return(UpdateFileOnTempDirectory(video));
}
else
{
var videos = new List <VideoElement> {
video
};
CreateFileOnTempDirectory(videos);
return(videos);
}
}
//private async void VideoPlay()
//{
// //await VideoElement.Pause();
// //await VideoElement.Play();
//}
private async Task VideoJumpTo(int milliseconds)
{
_waitActionCts = new MyCancellationTokenSource();
Guid?guid = _waitActionCts?.Guid;
var trueOffset = milliseconds + _videoOffset;
if (trueOffset < 0)
{
await VideoElement.Pause();
VideoElement.Position = TimeSpan.FromMilliseconds(0);
await Task.Run(() => { Thread.Sleep(TimeSpan.FromMilliseconds(-trueOffset)); });
if (_waitActionCts?.Guid != guid || _waitActionCts?.IsCancellationRequested == true)
{
return;
}
if (!_forcePaused)
{
await VideoElement.Play();
}
else
{
await VideoElement.Pause();
}
}
else
{
//if (_mediaEnded)
//{
// VideoElement.Position = TimeSpan.FromMilliseconds(0);
// await Task.Run(() => { Thread.Sleep(10); });
//}
if (!_forcePaused)
{
await VideoElement.Play();
}
else
{
await VideoElement.Pause();
}
VideoElement.Position = TimeSpan.FromMilliseconds(trueOffset);
}
}
//返回按鍵,關閉聲音撥放計算
private void back_Click(object sender, RoutedEventArgs e)
{
times = 0;
second = 0;
unit = 0;
action = 0;
res[0] = 0;
res[1] = 0;
finish = 0;
VideoElement.Stop();
GoodElement.Stop();
LeftNegativeElement.Stop();
LeftPositiveElement.Stop();
RightNegativeElement.Stop();
RightPositiveElement.Stop();
BGMusicElement.Stop();
this.NavigationService.Navigate(menu);
}
static void Main(string[] args)
{
var MediaStorage = new MediaStorage(new List <IPlayable>(), new List <IMediaList>());
var Directory = Environment.CurrentDirectory;
//аудио
Guid id = Guid.NewGuid();
IPlayable element = new AudioElement(id, "AudioElement", null, new System.IO.FileInfo(Directory + "\\Баста.mp3"));
MediaStorage.AddPlayable(element);
Player player = new Player(new PlayableAdapterFactory());
player.Play(MediaStorage.IPlayableFindById(id));
//видео
id = Guid.NewGuid();
element = new VideoElement(id, "VideoElement", null, new System.IO.FileInfo(Directory + "\\Баста.mp4"));
MediaStorage.AddPlayable(element);
player.Play(MediaStorage.IPlayableFindById(id));
//список
Guid idMediaList = Guid.NewGuid();
IMediaList UserList = new AudioUserList(idMediaList, "AudioUserList", (ICollection <IPlayable>)MediaStorage.IPlayablesFindByName("AudioElement"));
MediaStorage.AddMediaList(UserList);
id = Guid.NewGuid();
element = new AudioElement(id, "AudioElement2", null, new System.IO.FileInfo(Directory + "\\Баста.mp3"));
MediaStorage.AddPlayableFromMediaList(UserList, element);
IMediaList mls = MediaStorage.IMediaListFindById(idMediaList);
player.Play(mls.Items);
Console.ReadLine();
}
private async Task ClearVideoElement(bool seek)
{
await Task.Run(async() =>
{
await VideoElement.Stop();
Dispatcher.Invoke(() =>
{
VideoElement.Position = new TimeSpan(0);
VideoElement.Source = null;
VideoElement.Dispose();
VideoElement = null;
VideoElementBorder.Visibility = Visibility.Hidden;
VideoElement = new Unosquare.FFME.MediaElement
{
IsMuted = true,
LoadedBehavior = MediaState.Manual,
Visibility = System.Windows.Visibility.Visible,
};
VideoElement.MediaOpened += VideoElement_MediaOpened;
VideoElement.MediaFailed += VideoElement_MediaFailed;
VideoElement.MediaEnded += (sender, e) => { VideoElement.Position = TimeSpan.FromSeconds(0); };
if (seek)
{
VideoElement.SeekingStarted += (sender, e) => { };
VideoElement.SeekingEnded += (sender, e) =>
{
if (!_videoPlay)
{
return;
}
PlayMedia();
};
}
VideoElementBorder.Children.Add(VideoElement);
});
});
}
private async void Button_Click(object sender, RoutedEventArgs e)
{
AdaptiveMediaSourceCreationResult result = null;
try
{
result = await AdaptiveMediaSource.CreateFromUriAsync(new Uri(UrlBox.Text));
VideoElement.SetMediaStreamSource(result.MediaSource);
}
catch
{
try
{
VideoElement.Source = new Uri(UrlBox.Text);
}
catch
{
await Message();
return;
}
}
}
protected override void OnNavigatedFrom(NavigationEventArgs e)
{
if (mediaPlayer != null)
{
mediaPlayer.PlaybackSession.PlaybackStateChanged -= PlaybackSession_PlaybackStateChanged;
mediaPlayer.MediaOpened -= MediaPlayer_MediaOpened;
}
if (mtcGrid != null)
{
mtcGrid.PointerPressed -= OnPointerPressed;
mtcGrid.PointerReleased -= OnPointerReleased;
mtcGrid.PointerWheelChanged -= OnPointerWheelChanged;
VideoElement.PointerPressed -= OnPointerPressed;
VideoElement.PointerReleased -= OnPointerReleased;
VideoElement.PointerMoved -= OnPointerMoved;
VideoElement.PointerWheelChanged -= OnPointerWheelChanged;
Window.Current.CoreWindow.KeyDown -= OnKeyDown;
}
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed;
mediaPlayer.Source = null;
VideoElement.SetMediaPlayer(null);
mediaPlayer = null;
}
private void InitializeVideo()
{
if (!_videoInitilized)
{
_videoInitilized = true;
var videoEncodingProperties = VideoEncodingProperties.CreateH264();
videoEncodingProperties.Height = 720;
videoEncodingProperties.Width = 960;
var mediaStreamSource = new MediaStreamSource(new VideoStreamDescriptor(videoEncodingProperties))
{
// never turn live on because it tries to skip frame which breaks the h264 decoding
//IsLive = true,
BufferTime = TimeSpan.FromSeconds(0.0)
};
mediaStreamSource.SampleRequested += MediaStreamSource_SampleRequested;
VideoElement.SetMediaStreamSource(mediaStreamSource);
// never turn real time playback on
//_mediaElement.RealTimePlayback = true;
}
}
public void TexSubImage2D(uint target, int level, int xoffset, int yoffset, uint format, uint type, VideoElement video)
{
}
public void a_foreach_and_multiple_current_items_in_custom_element_produces_the_correct_html_output()
{
var video = new VideoElement();
var values = new [] {"one", "two"};
video.OuterXml.ShouldBe("<div><ul><li><a href=\"one\">one</a></li><li><a href=\"two\">two</a></li></ul></div>");
}
public void TexImage2D(uint target, int level, uint internalformat, uint format, uint type, VideoElement video)
{
}
