public static WebMediaInfo GetMediaInfo(MediaSource source)
{
if (source.MediaType == WebStreamMediaType.TV)
{
// cache tv files for 10 seconds
if (TvCache.ContainsKey(source.Id) && TvCache[source.Id].Item1.AddSeconds(10).CompareTo(DateTime.Now) > 0)
{
// cache is valid, use it
return(TvCache[source.Id].Item2);
}
// get media info and save it to the cache
TsBuffer buf = new TsBuffer(source.Id);
WebMediaInfo info = GetMediaInfo(buf.GetCurrentFilePath(), true);
TvCache[source.Id] = new Tuple <DateTime, WebMediaInfo>(DateTime.Now, info);
return(info);
}
else if (!source.Exists)
{
throw new FileNotFoundException();
}
else if (source.SupportsDirectAccess)
{
using (var impersonator = source.GetImpersonator())
{
return(GetMediaInfo(source.GetPath(), false));
}
}
else
{
// not (yet?) supported
throw new NotSupportedException();
}
}
public static WebMediaInfo GetMediaInfo(MediaSource source)
{
// we can't use our persistent cache for TV unfortunately, but we do cache them in memory for 60 seconds
if (source.MediaType == WebMediaType.TV)
{
if (tvCache.ContainsKey(source.Id) && DateTime.Now - tvCache[source.Id].Item1 > TimeSpan.FromSeconds(60))
{
return(tvCache[source.Id].Item2);
}
// save it to our memory cache for a while
TsBuffer buf = new TsBuffer(source.Id);
string path = buf.GetCurrentFilePath();
Log.Debug("Using path {0} from TS buffer {1} as source for {2}", path, source.Id, source.GetDebugName());
WebMediaInfo info = DoLoadMediaInfo(buf.GetCurrentFilePath(), true);
tvCache[source.Id] = new Tuple <DateTime, WebMediaInfo>(DateTime.Now, info);
return(info);
}
// load this item from persistent disk cache, if possible
if (persistentCache.HasForSource(source))
{
return(persistentCache.GetForSource(source));
}
// some checks that only matter when we are actually going to load it from disk
if (!source.Exists)
{
Log.Warn("Trying to load mediainfo for {0}, which doesn't seem to exist", source.GetDebugName());
return(null);
}
else if (!source.SupportsDirectAccess)
{
// not (yet?) supported
Log.Warn("Loading mediainfo for non-direct access source {0} isn't supported yet", source.GetDebugName());
return(null);
}
// actually load it
WebMediaInfo outInfo;
using (var impersonator = source.GetImpersonator())
{
outInfo = DoLoadMediaInfo(source.GetPath(), false);
}
if (outInfo != null)
{
persistentCache.Save(source, outInfo);
}
return(outInfo);
}
public static WebMediaInfo GetMediaInfo(MediaSource source)
{
// Timeshiftings are a special case, as they can't be cached and need an additional path resolving step
if (source.MediaType == WebMediaType.TV)
{
if (tvCache.ContainsKey(source.Id) && DateTime.Now - tvCache[source.Id].Item1 > TimeSpan.FromSeconds(60))
{
return(tvCache[source.Id].Item2);
}
TsBuffer tsBuffer = new TsBuffer(source.Id);
Log.Debug("Using path {0} from TS buffer {1} as source for {2}", tsBuffer.GetCurrentFilePath(), source.Id, source.GetDebugName());
WebMediaInfo info = LoadMediaInfo(tsBuffer.GetCurrentFilePath());
tvCache[source.Id] = new Tuple <DateTime, WebMediaInfo>(DateTime.Now, info);
return(info);
}
using (var context = source.CreateNetworkContext())
{
// verify the file actually exists and is accessible over the local file system
if (!source.Exists)
{
Log.Warn("Trying to load MediaInfo for {0}, which does not exist or is inaccessible", source.GetDebugName());
return(null);
}
else if (!source.SupportsDirectAccess)
{
Log.Warn("Loading MediaInfo for non-direct access source {0} isn't supported yet", source.GetDebugName());
return(null);
}
// if we got the file in the cache, return it if we have it and the file hasn't been changed
var fileInfo = source.GetFileInfo();
if (source.MediaType != WebMediaType.TV && persistentCache.HasForSource(source))
{
var cachedItem = persistentCache.GetForSource(source);
if (cachedItem.Size == fileInfo.Size && cachedItem.CachedDate >= fileInfo.LastModifiedTime)
{
return(cachedItem.Info);
}
}
var info = LoadMediaInfo(context.RewritePath(source.GetPath()));
if (info != null)
{
persistentCache.Save(source, new CachedInfoWrapper(info, fileInfo));
}
return(info);
}
}
public bool Setup()
{
try {
if (source.IndexOf(".ts.tsbuffer") != -1)
{
Log.Info("Using TsBuffer to read input");
DataOutputStream = new TsBuffer(this.source);
}
else
{
Log.Info("Using FileStream to read input");
DataOutputStream = new FileStream(source, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
}
} catch (Exception e) {
Log.Error("Failed to setup InputProcessingUnit", e);
return(false);
}
return(true);
}
public static WebMediaInfo GetMediaInfo(TsBuffer buffer)
{
string path = buffer.GetCurrentFilePath();
return(GetMediaInfo(path, true));
}
protected void Page_Load(object sender, EventArgs e)
{
string filename = "";
List <EncoderConfig> cfgs = Utils.LoadConfig();
EncoderConfig cfg = cfgs[Int32.Parse(Request.QueryString["idProfile"])];
ServiceInterface server = new ServiceInterface();
if (Request.QueryString["idChannel"] != null)
{
if (server.GetChannel(Int32.Parse(Request.QueryString["idChannel"])).isRadio)
{
bufferSize = 2560;
}
WebTvResult res = server.StartTimeShifting(Int32.Parse(Request.QueryString["idChannel"]));
if (res.result != 0)
{
Utils.Log("Streamer.aspx: ERROR: StartTimeShifting failed with error: " + res.result.ToString());
Response.Output.WriteLine("ERROR: StartTimeShifting failed with error: " + res.result.ToString());
Response.End();
return;
}
usedCard = res.user.idCard;
usedChannel = res.user.idChannel;
tvServerUsername = res.user.name;
if (cfg.inputMethod == TransportMethod.Filename)
{
filename = res.rtspURL;
}
else
{
filename = res.timeshiftFile;
}
}
else if (Request.QueryString["idRecording"] != null)
{
WebRecording rec = server.GetRecording(Int32.Parse(Request.QueryString["idRecording"]));
filename = rec.fileName;
}
else if (Request.QueryString["idMovie"] != null)
{
WebMovie movie = server.GetMovie(Int32.Parse(Request.QueryString["idMovie"]));
filename = movie.file;
}
else if (Request.QueryString["idMusicTrack"] != null)
{
WebMusicTrack track = server.GetMusicTrack(Int32.Parse(Request.QueryString["idMusicTrack"]));
filename = track.file;
}
else if (Request.QueryString["idTvSeries"] != null)
{
WebSeries series = server.GetTvSeries(Request.QueryString["idTvSeries"]);
filename = series.filename;
}
else if (Request.QueryString["idMovingPicture"] != null)
{
WebMovingPicture pic = server.GetMovingPicture(Int32.Parse(Request.QueryString["idMovingPicture"]));
filename = pic.filename;
}
if (!File.Exists(filename) && !filename.StartsWith("rtsp://"))
{
Utils.Log("Streamer.aspx: Requested file " + filename + " does not exist.");
return;
}
Response.Clear();
Response.Buffer = false;
Response.BufferOutput = false;
Response.AppendHeader("Connection", "Keep-Alive");
Response.ContentType = "video/x-msvideo";
Response.StatusCode = 200;
Stream mediaStream = null;
EncoderWrapper encoder = null;
Stream outStream = null;
if (cfg.inputMethod != TransportMethod.Filename)
{
if (Request.QueryString["idChannel"] != null)
{
mediaStream = new TsBuffer(filename);
}
else
{
mediaStream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
}
encoder = new EncoderWrapper(mediaStream, cfg);
}
else
{
encoder = new EncoderWrapper(filename, cfg);
}
if (cfg.useTranscoding)
{
outStream = encoder;
}
else
{
outStream = mediaStream;
}
byte[] buffer = new byte[bufferSize];
int read;
try
{
while ((read = outStream.Read(buffer, 0, buffer.Length)) > 0)
{
try
{
Response.OutputStream.Write(buffer, 0, read);
}
catch (Exception)
{
break; // stream is closed
}
if (Request.QueryString["idChannel"] != null)
{
server.SendHeartBeat(usedChannel, usedCard, tvServerUsername);
}
}
}
catch (Exception ex)
{
Utils.Log("Streamer.aspx: Exception raised=" + ex.Message + Environment.NewLine + ex.StackTrace);
}
if (mediaStream != null)
{
mediaStream.Close();
}
if (Request.QueryString["idChannel"] != null)
{
server.StopTimeShifting(usedChannel, usedCard, tvServerUsername);
}
encoder.StopProcess();
Response.End();
}
