public WTVStreamingVideoResult StartStreamer(WTVStreamingVideoRequest strq)
{
int newStreamerID = -1;
// Too many streamers?
if (mediaStreamers.Count > MAXIMUM_STREAMERS)
{
Functions.WriteLineToLogFile("DSStreamingManager: too many streamers (" + mediaStreamers.Count.ToString() + " streamers are running, which is above the maximum of " + MAXIMUM_STREAMERS.ToString() + ")");
return(new WTVStreamingVideoResult(DSStreamResultCodes.ErrorTooManyStreamers));
}
// For now, some overrides and assumptions
if (!File.Exists(strq.FileName))
{
Functions.WriteLineToLogFile("WebSvc Start Streaming FAIL: File not found: " + strq.FileName);
return(new WTVStreamingVideoResult(DSStreamResultCodes.ErrorFileNotFound));
}
try
{
DSStreamer mediaStreamer = new DSStreamer();
mediaStreamer = new FatAttitude.WTVTranscoder.DSStreamer();
mediaStreamer.Finished += new EventHandler <DSTranscoderBase.ConversionEndedEventArgs>(mediaStreamer_Finished);
mediaStreamer.ConversionCompleted += new EventHandler(mediaStreamer_ConversionCompleted);
mediaStreamer.DebugMessageGenerated += new EventHandler <DSTranscoderBase.DebugMessageEventArgs>(mediaStreamer_DebugMessageGenerated);
Functions.WriteLineToLogFile("DSStreamingManager: DSStreamer object created.");
// Which port should we use?
int portToTry = GetNextFreePort();
// Try streaming (Async)
Functions.WriteLineToLogFileIfSetting(Settings.Default.DebugStreaming, "DSStreamingManager: Attempting to stream using port " + portToTry.ToString());
WTVStreamingVideoResult streamResult = mediaStreamer.StreamWithFileAndPort(strq, portToTry, false, true);
if (streamResult.ResultCode == DSStreamResultCodes.OK)
{
// Add to local streamers
newStreamerID = AddNewStreamer(mediaStreamer);
mediaStreamer.ID = newStreamerID;
// Add streamer ID to result code too
streamResult.StreamerID = newStreamerID.ToString();
}
// Return
return(streamResult);
}
catch (Exception e)
{
Functions.WriteLineToLogFile("Exception setting up mediaStreaming object:");
Functions.WriteExceptionToLogFile(e);
return(new WTVStreamingVideoResult(DSStreamResultCodes.ErrorExceptionOccurred, "Error setting up mediastreaming object: " + e.Message + " (see server log for more details)"));
}
}
int AddNewStreamer(DSStreamer newStreamer)
{
int newID;
do
{
Random r = new Random();
newID = r.Next(10000, 99999);
}while (mediaStreamers.ContainsKey(newID));
mediaStreamers.Add(newID, newStreamer);
// Power options
SetPowerOptions();
return(newID);
}
/// <summary>
/// Stop a streamer and remove it from the local list of streamers
/// </summary>
/// <param name="streamerID"></param>
/// <returns></returns>
public bool StopStreamer(int streamerID)
{
if (Settings.Default.DebugStreaming)
{
Functions.WriteLineToLogFile("DSStreamingManager: Received stop command for streamer " + streamerID.ToString());
}
DSStreamer mediaStreamer = GetStreamerByID(streamerID);
if (mediaStreamer == null)
{
return(false);
}
mediaStreamer.Cancel();
// Remove from streamers
RemoveStreamer(mediaStreamer);
return(true);
}
void RemoveStreamer(DSStreamer ms)
{
if (ms != null)
{
CleanupDSStreamerFiles(ms);
mediaStreamers.Remove(ms.ID);
try
{
ms.Dispose();
ms = null;
}
catch (Exception ex)
{
Functions.WriteLineToLogFile("Couldn't dispose DSStreamer:");
Functions.WriteExceptionToLogFile(ex);
}
}
// Power options
SetPowerOptions();
}
void CleanupDSStreamerFiles(DSStreamer ms)
{
if (string.IsNullOrEmpty(ms.StreamingRequest.FileName))
{
return;
}
// Cleanup file
string fileName = ms.StreamingRequest.FileName + ".wmv";
if (File.Exists(fileName))
{
if (Settings.Default.DebugAdvanced)
{
Functions.WriteLineToLogFile("Cleaning up old streaming file " + fileName);
}
try
{
File.Delete(fileName);
}
catch { }
}
}
void mediaStreamer_Finished(object sender, DSTranscoderBase.ConversionEndedEventArgs e)
{
if (e.WasError)
{
Functions.WriteLineToLogFile("DSStreamingManager: DSStreamer finished, error occured: " + e.Message);
}
else
{
Functions.WriteLineToLogFile("DSStreamingManager: DSStreamer finished: " + e.Message);
}
if (sender == null)
{
return;
}
if (!(sender is DSStreamer))
{
return;
}
DSStreamer streamer = (DSStreamer)sender;
RemoveStreamer(streamer); // CLears up any files, resumes power standby and removes from local array
}
