private void OnPlaying()
{
var progress = (Position.TotalSeconds / Duration.TotalSeconds) * 100;
var position = Position;
var duration = Duration;
if (Status == MediaPlayerStatus.Playing || Status == MediaPlayerStatus.Buffering)
{
Task.Delay(500).ContinueWith(task => OnPlaying(), _onPlayingCancellationSource.Token);
}
if (Status == MediaPlayerStatus.Stopped || Status == MediaPlayerStatus.Failed)
{
duration = TimeSpan.Zero;
position = TimeSpan.Zero;
progress = 0;
}
PlayingChanged?.Invoke(this, new PlayingChangedEventArgs(
progress >= 0 ? progress : 0,
position.TotalSeconds >= 0 ? position : TimeSpan.Zero,
duration.TotalSeconds >= 0 ? duration : TimeSpan.Zero));
}
public AudioPlayerImplementation()
{
_player = new MediaPlayer();
_playProgressTimer = new Timer(state =>
{
if (_player.PlaybackSession.PlaybackState == MediaPlaybackState.Playing)
{
var progress = _player.PlaybackSession.Position.TotalSeconds /
_player.PlaybackSession.NaturalDuration.TotalSeconds;
if (double.IsNaN(progress))
{
progress = 0;
}
PlayingChanged?.Invoke(this, new PlayingChangedEventArgs(progress, _player.PlaybackSession.Position, _player.PlaybackSession.NaturalDuration));
}
}, null, 0, int.MaxValue);
_player.MediaFailed += (sender, args) =>
{
_status = MediaPlayerStatus.Failed;
_playProgressTimer.Change(0, int.MaxValue);
MediaFailed?.Invoke(this, new MediaFailedEventArgs(args.ErrorMessage, args.ExtendedErrorCode));
};
_player.PlaybackSession.PlaybackStateChanged += (sender, args) =>
{
switch (sender.PlaybackState)
{
case MediaPlaybackState.None:
_playProgressTimer.Change(0, int.MaxValue);
break;
case MediaPlaybackState.Opening:
Status = MediaPlayerStatus.Loading;
_playProgressTimer.Change(0, int.MaxValue);
break;
case MediaPlaybackState.Buffering:
Status = MediaPlayerStatus.Buffering;
_playProgressTimer.Change(0, int.MaxValue);
break;
case MediaPlaybackState.Playing:
if (sender.PlaybackRate <= 0 && sender.Position == TimeSpan.Zero)
{
Status = MediaPlayerStatus.Stopped;
}
else
{
Status = MediaPlayerStatus.Playing;
_playProgressTimer.Change(0, 50);
}
break;
case MediaPlaybackState.Paused:
Status = MediaPlayerStatus.Paused;
_playProgressTimer.Change(0, int.MaxValue);
break;
default:
throw new ArgumentOutOfRangeException();
}
};
_player.MediaEnded += (sender, args) => { MediaFinished?.Invoke(this, new MediaFinishedEventArgs(_currentMediaFile)); };
_player.PlaybackSession.BufferingProgressChanged += (sender, args) =>
{
var bufferedTime =
TimeSpan.FromSeconds(_player.PlaybackSession.BufferingProgress *
_player.PlaybackSession.NaturalDuration.TotalSeconds);
BufferingChanged?.Invoke(this,
new BufferingChangedEventArgs(_player.PlaybackSession.BufferingProgress, bufferedTime));
};
_player.PlaybackSession.SeekCompleted += (sender, args) => { };
}
protected virtual void OnPlayingChanged(PlayingChangedEventArgs e)
{
PlayingChanged?.Invoke(this, e);
}
public VideoPlayerImplementation(IVolumeManager volumeManager)
{
_volumeManager = volumeManager;
_player = new MediaPlayer();
_playProgressTimer = new Timer(state =>
{
if (_player.PlaybackSession.PlaybackState == MediaPlaybackState.Playing)
{
var progress = _player.PlaybackSession.Position.TotalSeconds /
_player.PlaybackSession.NaturalDuration.TotalSeconds;
if (double.IsInfinity(progress))
{
progress = 0;
}
PlayingChanged?.Invoke(this, new PlayingChangedEventArgs(progress, _player.PlaybackSession.Position, _player.PlaybackSession.NaturalDuration));
}
}, null, 0, int.MaxValue);
_player.MediaFailed += (sender, args) =>
{
_status = MediaPlayerStatus.Failed;
_playProgressTimer.Change(0, int.MaxValue);
MediaFailed?.Invoke(this, new MediaFailedEventArgs(args.ErrorMessage, args.ExtendedErrorCode));
};
_player.PlaybackSession.PlaybackStateChanged += (sender, args) =>
{
switch (sender.PlaybackState)
{
case MediaPlaybackState.None:
_playProgressTimer.Change(0, int.MaxValue);
break;
case MediaPlaybackState.Opening:
Status = MediaPlayerStatus.Loading;
_playProgressTimer.Change(0, int.MaxValue);
break;
case MediaPlaybackState.Buffering:
Status = MediaPlayerStatus.Buffering;
_playProgressTimer.Change(0, int.MaxValue);
break;
case MediaPlaybackState.Playing:
if ((sender.PlaybackRate <= 0) && (sender.Position == TimeSpan.Zero))
{
Status = MediaPlayerStatus.Stopped;
}
else
{
Status = MediaPlayerStatus.Playing;
_playProgressTimer.Change(0, 50);
}
break;
case MediaPlaybackState.Paused:
Status = MediaPlayerStatus.Paused;
_playProgressTimer.Change(0, int.MaxValue);
break;
default:
throw new ArgumentOutOfRangeException();
}
};
_player.MediaEnded += (sender, args) => { MediaFinished?.Invoke(this, new MediaFinishedEventArgs(_currentMediaFile)); };
_player.PlaybackSession.BufferingProgressChanged += (sender, args) =>
{
var bufferedTime =
TimeSpan.FromSeconds(_player.PlaybackSession.BufferingProgress *
_player.PlaybackSession.NaturalDuration.TotalSeconds);
BufferingChanged?.Invoke(this,
new BufferingChangedEventArgs(_player.PlaybackSession.BufferingProgress, bufferedTime));
};
_player.PlaybackSession.SeekCompleted += (sender, args) => { };
_player.MediaOpened += (sender, args) => { _loadMediaTaskCompletionSource.SetResult(true); };
_volumeManager.CurrentVolume = (float)_player.Volume;
_volumeManager.Mute = _player.IsMuted;
_volumeManager.VolumeChanged += VolumeManagerOnVolumeChanged;
}
