private async Task <bool> UpdatePlayingMediaAsync(IVideoContent item, TimeSpan?startPosition)
{
Guard.IsNotNull(item, nameof(item));
try
{
var result = await _videoStreamingOriginOrchestrator.CreatePlayingOrchestrateResultAsync(item.VideoId);
CurrentPlayingSession = result;
if (!result.IsSuccess)
{
_messenger.Send(new PlaybackFailedMessage(new(this, CurrentPlaylistId, item.VideoId, result.PlayingOrchestrateFailedReason)));
return(false);
}
var qualityEntity = AvailableQualities.FirstOrDefault(x => x.Quality == _playerSettings.DefaultVideoQuality);
if (qualityEntity?.IsAvailable is null or false)
{
qualityEntity = AvailableQualities.SkipWhile(x => !x.IsAvailable).First();
}
var videoSession = await result.VideoSessionProvider.CreateVideoSessionAsync(qualityEntity.Quality);
_videoSessionDisposable = videoSession;
await videoSession.StartPlayback(_mediaPlayer, startPosition ?? TimeSpan.Zero);
CurrentQuality = AvailableQualities.First(x => x.Quality == videoSession.Quality);
Guard.IsNotNull(_mediaPlayer.PlaybackSession, nameof(_mediaPlayer.PlaybackSession));
OnPropertyChanged(nameof(AvailableQualities));
NowPlayingWithCache = videoSession is CachedVideoStreamingSession;
_soundVolumeManager.LoudnessCorrectionValue = CurrentPlayingSession.VideoDetails.LoudnessCorrectionValue;
// メディア再生成功時のメッセージを飛ばす
_messenger.Send(new PlaybackStartedMessage(new(this, CurrentPlaylistId, item.VideoId, videoSession.Quality, _mediaPlayer.PlaybackSession)));
_mediaPlayer.PlaybackSession.PlaybackStateChanged += PlaybackSession_PlaybackStateChanged;
_mediaPlayer.CommandManager.IsEnabled = false;
await _dispatcherQueue.EnqueueAsync(async() =>
{
_smtc.IsEnabled = true;
_smtc.IsPauseEnabled = true;
_smtc.IsPlayEnabled = true;
_smtc.IsStopEnabled = true;
_smtc.IsFastForwardEnabled = true;
_smtc.IsNextEnabled = await CanGoNextAsync_Internal(default);
