public async Task PlayAsync(NicoVideoQuality quality = NicoVideoQuality.Unknown, TimeSpan startPosition = default)
{
if (_niconicoVideoSessionProvider == null) { throw new ArgumentException("please call VideoPlayer.UpdatePlayingVideo() before VideoPlayer.PlayAsync()."); }
if ((_currentSession as IVideoStreamingSession)?.Quality == quality)
{
return;
}
_currentSession?.Dispose();
_currentSession = await _niconicoVideoSessionProvider.CreateVideoSessionAsync(quality);
if (_currentSession is IVideoStreamingSession videoStreamingSession)
{
CurrentQuality = AvailableQualities.First(x => x.Quality == videoStreamingSession.Quality);
}
if (_currentSession is LocalVideoStreamingSession)
{
IsPlayWithCache.Value = true;
}
NowPlayingWithDmcVideo = _currentSession is Models.DmcVideoStreamingSession;
await _currentSession.StartPlayback(_mediaPlayer, startPosition);
}
/// <summary>
/// 動画ストリームの取得します
/// </summary>
/// <exception cref="NotSupportedException" />
public async Task <IStreamingSession> CreateVideoSessionAsync(NicoVideoQuality quality = NicoVideoQuality.Unknown)
{
IStreamingSession streamingSession = null;
if (_watchApiResponse != null)
{
var ownership = await _ownershipManager.TryRentVideoSessionOwnershipAsync(_watchApiResponse.videoDetail.id, !IsForCacheDownload);
if (ownership != null)
{
streamingSession = new SmileVideoStreamingSession(
_watchApiResponse.VideoUrl,
_niconicoSession,
ownership
);
}
}
else if (_dmcWatchData != null)
{
if (_dmcWatchData.DmcWatchResponse.Video.DmcInfo != null)
{
var qualityEntity = AvailableQualities.Where(x => x.IsAvailable).FirstOrDefault(x => x.Quality == quality);
if (qualityEntity == null)
{
qualityEntity = AvailableQualities.Where(x => x.IsAvailable).First();
}
var ownership = await _ownershipManager.TryRentVideoSessionOwnershipAsync(_dmcWatchData.DmcWatchResponse.Video.Id, !IsForCacheDownload);
if (ownership != null)
{
streamingSession = new DmcVideoStreamingSession(qualityEntity.QualityId, _dmcWatchData, _niconicoSession, ownership);
}
}
else if (_dmcWatchData.DmcWatchResponse.Video.SmileInfo != null)
{
var ownership = await _ownershipManager.TryRentVideoSessionOwnershipAsync(_dmcWatchData.DmcWatchResponse.Video.Id, !IsForCacheDownload);
if (ownership != null)
{
streamingSession = new SmileVideoStreamingSession(
new Uri(_dmcWatchData.DmcWatchResponse.Video.SmileInfo.Url), _niconicoSession, ownership);
}
}
else
{
throw new NotSupportedException("動画ページ情報から動画ファイルURLを検出できませんでした");
}
}
else
{
throw new NotSupportedException("動画の再生準備に失敗（動画ページの解析でエラーが発生）");
}
return(streamingSession);
}