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 static ITranscoder GetTranscoder(this TranscoderProfile profile)
{
// For now only support files in current assembly
ITranscoder inst = (ITranscoder)Activator.CreateInstance(Type.GetType(profile.TranscoderImplementationClass));
return(inst);
}
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)
{
return Resolution.Calculate(info.VideoStreams.First().DisplayAspectRatio, profile.MaxOutputWidth, profile.MaxOutputHeight, 2);
}
}
catch (Exception ex)
{
Log.Warn("Failed to calculate size of output stream", ex);
}
// default
return Resolution.Calculate(16 / 9, profile.MaxOutputWidth, profile.MaxOutputHeight, 2);
}
private List <TranscoderProfile> ParseAndMergeTranscoders(XElement oldFile)
{
// load all the transcoders from the old file
var list = new List <TranscoderProfile>();
foreach (var node in oldFile.Elements("transcoders").Elements("transcoder"))
{
var profile = new TranscoderProfile()
{
Name = node.Element("name").Value,
Description = node.Element("description").Value,
Bandwidth = Int32.Parse(node.Element("bandwidth").Value),
Targets = new List <string>()
{
node.Element("target").Value
},
Transport = node.Element("transport").Value,
MaxOutputHeight = node.Element("maxOutputHeight") != null?Int32.Parse(node.Element("maxOutputHeight").Value) : 0,
MaxOutputWidth = node.Element("maxOutputWidth") != null?Int32.Parse(node.Element("maxOutputWidth").Value) : 0,
MIME = node.Element("mime").Value,
HasVideoStream = node.Element("videoStream").Value == "true",
Transcoder = (string)node.Element("transcoderConfiguration").Attribute("implementation")
};
foreach (var configNode in node.Elements("transcoderConfiguration").Descendants())
{
profile.TranscoderParameters[configNode.Name.LocalName] = configNode.Value;
}
list.Add(profile);
}
// parse the new default file
var defaultSerializer = new StreamingSerializer();
Streaming defaultModel;
using (var file = File.OpenRead(DefaultPath))
{
defaultModel = (Streaming)defaultSerializer.Deserialize(file);
}
// merge the lists
var finalList = defaultModel.Transcoders;
foreach (var oldProfile in list)
{
if (!finalList.Any(x => x.Name == oldProfile.Name))
{
finalList.Add(oldProfile);
}
}
return(finalList);
}
public static WebTranscoderProfile ToWebTranscoderProfile(this TranscoderProfile profile)
{
// WCF sucks a bit with returning child classes
return(new WebTranscoderProfile()
{
Bandwidth = profile.Bandwidth,
Description = profile.Description,
HasVideoStream = profile.HasVideoStream,
MaxOutputHeight = profile.MaxOutputHeight,
MaxOutputWidth = profile.MaxOutputWidth,
MIME = profile.MIME,
Name = profile.Name,
Targets = profile.Targets,
Transport = profile.Transport
});
}
public Resolution CalculateSize(TranscoderProfile profile, MediaSource source, WebMediaInfo info = null)
{
if (!profile.HasVideoStream)
{
return(new Resolution(0, 0));
}
decimal aspect = (decimal)16 / 9; // the default aspect ratio
if (source.MediaType != WebStreamMediaType.TV && profile != null)
{
if (info == null)
{
info = MediaInfoWrapper.GetMediaInfo(source);
}
if (info.VideoStreams.Count > 0)
{
aspect = info.VideoStreams.First().DisplayAspectRatio;
}
}
return(Resolution.Calculate(aspect, profile.MaxOutputWidth, profile.MaxOutputHeight, 2));
}
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 Resolution CalculateSize(TranscoderProfile profile, decimal displayAspectRatio)
{
return(Resolution.Calculate(displayAspectRatio, profile.MaxOutputWidth, profile.MaxOutputHeight, 2));
}
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);
}
}
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 = (ITranscoder)Activator.CreateInstance(Type.GetType(profile.TranscoderImplementationClass));
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;
}
}
