public Resolution CalculateSize(TranscoderProfile profile, MediaSource source, WebMediaInfo info = null) { try { if (!profile.HasVideoStream) { return(new Resolution(0, 0)); } if (info == null) { info = MediaInfoHelper.LoadMediaInfoOrSurrogate(source); } if (info.VideoStreams.Count > 0) { var res = Resolution.Calculate(info.VideoStreams.First().DisplayAspectRatio, profile.MaxOutputWidth, profile.MaxOutputHeight, 2); if (res.Width == 0 && res.Height == 0) { return(new Resolution(info.VideoStreams.First().Width, info.VideoStreams.First().Height)); } return(res); } } catch (Exception ex) { Log.Warn("Failed to calculate size of output stream", ex); } // default return(Resolution.Calculate(MediaInfoHelper.DEFAULT_ASPECT_RATIO, profile.MaxOutputWidth, profile.MaxOutputHeight, 2)); }
public Stream Download(string clientDescription, WebMediaType type, int?provider, string itemId, long?position) { // validate source first MediaSource source = new MediaSource(type, provider, itemId); if (!source.Exists) { throw new FileNotFoundException(); } // create context DownloadContext context = new DownloadContext() { ClientDescription = clientDescription, Source = source, StartTime = DateTime.Now, Stream = new ReadTrackingStreamWrapper(source.Retrieve()), MediaInfo = MediaInfoHelper.LoadMediaInfoOrSurrogate(source) // for playerposition view }; // seek to start position if wanted/needed if (position != null && position > 0) { if (context.Stream.CanSeek) { context.Stream.Seek(position.Value, SeekOrigin.Begin); } else { Log.Warn("Download: Cannot seek on stream, failed to set start position to {0}", position); } } // see comment in Streaming.cs:151 string realIp = WCFUtil.GetHeaderValue("forwardedFor", "X-Forwarded-For"); context.ClientIP = realIp == null?WCFUtil.GetClientIPAddress() : String.Format("{0} (via {1})", realIp, WCFUtil.GetClientIPAddress()); // set headers for downloading WCFUtil.AddHeader("Content-Disposition", "attachment; filename=\"" + source.GetFileInfo().Name + "\""); if (source.MediaType != WebMediaType.TV) { WCFUtil.SetContentLength(source.GetFileInfo().Size); } // FIXME: there has to be a better way to do this string mime = MIME.GetFromFilename(source.GetFileInfo().Name); if (mime != null) { WCFUtil.SetContentType(mime); } // finally, save the context and return runningDownloads.Add(context); return(context.Stream); }
public string StartStream(string identifier, TranscoderProfile profile, int position = 0, int audioId = STREAM_DEFAULT, int subtitleId = STREAM_DEFAULT) { // there's a theoretical race condition here between the insert in InitStream() and this, but the client should really, really // always have a positive result from InitStream() before continuing, so their bad that the stream failed. if (!Streams.ContainsKey(identifier) || Streams[identifier] == null) { Log.Warn("Stream requested for invalid identifier {0}", identifier); return(null); } if (profile == null) { Log.Warn("Stream requested for non-existent profile"); return(null); } try { lock (Streams[identifier]) { Log.Trace("StartStream called with identifier {0}", identifier); // initialize stream and context ActiveStream stream = Streams[identifier]; stream.Context.StartPosition = position; stream.Context.Profile = profile; stream.Context.MediaInfo = MediaInfoHelper.LoadMediaInfoOrSurrogate(stream.Context.Source); stream.Context.OutputSize = CalculateSize(stream.Context); Reference <WebTranscodingInfo> infoRef = new Reference <WebTranscodingInfo>(() => stream.Context.TranscodingInfo, x => { stream.Context.TranscodingInfo = x; }); Log.Trace("Using {0} as output size for stream {1}", stream.Context.OutputSize, identifier); sharing.StartStream(stream.Context, infoRef); // get transcoder stream.Transcoder = profile.GetTranscoder(); stream.Transcoder.Identifier = identifier; // get audio and subtitle id if (stream.Context.MediaInfo.AudioStreams.Where(x => x.ID == audioId).Count() > 0) { stream.Context.AudioTrackId = stream.Context.MediaInfo.AudioStreams.Where(x => x.ID == audioId).First().ID; } else if (audioId == STREAM_DEFAULT) { string preferredLanguage = Configuration.Streaming.DefaultAudioStream; if (stream.Context.MediaInfo.AudioStreams.Count(x => x.Language == preferredLanguage) > 0) { stream.Context.AudioTrackId = stream.Context.MediaInfo.AudioStreams.First(x => x.Language == preferredLanguage).ID; } else if (preferredLanguage != "none" && stream.Context.MediaInfo.AudioStreams.Count() > 0) { stream.Context.AudioTrackId = stream.Context.MediaInfo.AudioStreams.First().ID; } } if (stream.Context.MediaInfo.SubtitleStreams.Where(x => x.ID == subtitleId).Count() > 0) { stream.Context.SubtitleTrackId = stream.Context.MediaInfo.SubtitleStreams.Where(x => x.ID == subtitleId).First().ID; } else if (subtitleId == STREAM_DEFAULT) { string preferredLanguage = Configuration.Streaming.DefaultSubtitleStream; if (stream.Context.MediaInfo.SubtitleStreams.Count(x => x.Language == preferredLanguage) > 0) { stream.Context.SubtitleTrackId = stream.Context.MediaInfo.SubtitleStreams.First(x => x.Language == preferredLanguage).ID; } else if (preferredLanguage == "external" && stream.Context.MediaInfo.SubtitleStreams.Count(x => x.Filename != null) > 0) { stream.Context.SubtitleTrackId = stream.Context.MediaInfo.SubtitleStreams.First(x => x.Filename != null).ID; } else if (preferredLanguage == "first" && stream.Context.MediaInfo.SubtitleStreams.Count() > 0) { stream.Context.SubtitleTrackId = stream.Context.MediaInfo.SubtitleStreams.First().ID; } } Log.Debug("Final stream selection: audioId={0}, subtitleId={1}", stream.Context.AudioTrackId, stream.Context.SubtitleTrackId); // build the pipeline stream.Context.Pipeline = new Pipeline(); stream.Context.TranscodingInfo = new WebTranscodingInfo(); stream.Transcoder.BuildPipeline(stream.Context); // start the processes and retrieve output stream stream.Context.Pipeline.Assemble(); stream.Context.Pipeline.Start(); Stream finalStream = Streams[identifier].Context.Pipeline.GetFinalStream(); if (finalStream != null) { Streams[identifier].OutputStream = new ReadTrackingStreamWrapper(finalStream); } Log.Info("Started stream with identifier " + identifier); return(stream.Transcoder.GetStreamURL()); } } catch (Exception ex) { Log.Error("Failed to start stream " + identifier, ex); return(null); } }
public string StartStream(string identifier, TranscoderProfile profile, long position = 0, int audioId = STREAM_DEFAULT, int subtitleId = STREAM_DEFAULT) { // there's a theoretical race condition here between the insert in InitStream() and this, but the client should really, really // always have a positive result from InitStream() before continuing, so their bad that the stream failed. if (!Streams.ContainsKey(identifier) || Streams[identifier] == null) { Log.Warn("Stream requested for invalid identifier {0}", identifier); return(null); } if (profile == null) { StreamLog.Warn(identifier, "Stream requested for non-existent profile"); return(null); } try { lock (Streams[identifier]) { StreamLog.Debug(identifier, "StartStream for file {0}", Streams[identifier].Context.Source.GetDebugName()); // initialize stream and context ActiveStream stream = Streams[identifier]; stream.Context.StartPosition = position; stream.Context.Profile = profile; stream.UseActivityForTimeout = profile.Transport == "httplive"; stream.Context.MediaInfo = MediaInfoHelper.LoadMediaInfoOrSurrogate(stream.Context.Source); stream.Context.OutputSize = CalculateSize(stream.Context); StreamLog.Debug(identifier, "Using {0} as output size for stream {1}", stream.Context.OutputSize, identifier); Reference <WebTranscodingInfo> infoRef = new Reference <WebTranscodingInfo>(() => stream.Context.TranscodingInfo, x => { stream.Context.TranscodingInfo = x; }); sharing.StartStream(stream.Context, infoRef); // get transcoder stream.Transcoder = (ITranscoder)Activator.CreateInstance(Type.GetType(profile.Transcoder)); stream.Transcoder.Identifier = identifier; stream.Transcoder.Context = stream.Context; // get audio and subtitle id if (stream.Context.MediaInfo.AudioStreams.Any(x => x.ID == audioId)) { stream.Context.AudioTrackId = stream.Context.MediaInfo.AudioStreams.First(x => x.ID == audioId).ID; } else if (audioId == STREAM_DEFAULT) { string preferredLanguage = Configuration.Streaming.DefaultAudioStream; if (stream.Context.MediaInfo.AudioStreams.Any(x => x.Language == preferredLanguage)) { stream.Context.AudioTrackId = stream.Context.MediaInfo.AudioStreams.First(x => x.Language == preferredLanguage).ID; } else if (preferredLanguage != "none" && stream.Context.MediaInfo.AudioStreams.Any()) { stream.Context.AudioTrackId = stream.Context.MediaInfo.AudioStreams.First().ID; } } if (stream.Context.MediaInfo.SubtitleStreams.Any(x => x.ID == subtitleId)) { stream.Context.SubtitleTrackId = stream.Context.MediaInfo.SubtitleStreams.First(x => x.ID == subtitleId).ID; } else if (subtitleId == STREAM_DEFAULT) { string preferredLanguage = Configuration.Streaming.DefaultSubtitleStream; if (stream.Context.MediaInfo.SubtitleStreams.Any(x => x.Language == preferredLanguage)) { stream.Context.SubtitleTrackId = stream.Context.MediaInfo.SubtitleStreams.First(x => x.Language == preferredLanguage).ID; } else if (preferredLanguage == "external" && stream.Context.MediaInfo.SubtitleStreams.Any(x => x.Filename != null)) { stream.Context.SubtitleTrackId = stream.Context.MediaInfo.SubtitleStreams.First(x => x.Filename != null).ID; } else if (preferredLanguage == "first" && stream.Context.MediaInfo.SubtitleStreams.Any()) { stream.Context.SubtitleTrackId = stream.Context.MediaInfo.SubtitleStreams.First().ID; } } StreamLog.Debug(identifier, "Final stream selection: audioId={0}, subtitleId={1}", stream.Context.AudioTrackId, stream.Context.SubtitleTrackId); // build the pipeline stream.Context.Pipeline = new Pipeline(identifier); stream.Context.TranscodingInfo = new WebTranscodingInfo(); stream.Transcoder.BuildPipeline(); // start the pipeline, but imm bool assembleResult = stream.Context.Pipeline.Assemble(); bool startResult = assembleResult ? stream.Context.Pipeline.Start() : true; if (!assembleResult || !startResult) { StreamLog.Warn(identifier, "Starting pipeline failed"); return(null); } // get the final stream and return it Stream finalStream = Streams[identifier].Context.Pipeline.GetFinalStream(); if (finalStream != null) { Streams[identifier].OutputStream = new ReadTrackingStreamWrapper(finalStream); } StreamLog.Info(identifier, "Started stream"); Streams[identifier].LastActivity = DateTime.Now; return(stream.Transcoder.GetStreamURL()); } } catch (Exception ex) { StreamLog.Error(identifier, "Failed to start stream", ex); return(null); } }