/// <summary>
/// Tunes the specified channel.
/// </summary>
/// <param name="subChannelId">The sub channel id</param>
/// <param name="channel">The channel.</param>
/// <returns></returns>
public override ITvSubChannel Tune(int subChannelId, IChannel channel)
{
Log.Log.WriteFile("dvbt: Tune:{0}", channel);
try
{
if (!BeforeTune(channel, ref subChannelId))
{
return(null);
}
ITvSubChannel ch = base.Tune(subChannelId, channel);
Log.Log.Info("dvbt: tune: Graph running. Returning {0}", ch.ToString());
return(ch);
}
catch (TvExceptionTuneCancelled)
{
throw;
}
catch (TvExceptionNoSignal)
{
throw;
}
catch (TvExceptionNoPMT)
{
throw;
}
catch (Exception ex)
{
Log.Log.Write(ex);
throw;
}
}
/// <summary>
/// Tune to channel
/// </summary>
/// <param name="subChannelId"></param>
/// <param name="channel"></param>
/// <returns></returns>
private ITvSubChannel DoTune(int subChannelId, IChannel channel, bool ignorePMT)
{
Log.Log.WriteFile("dvbip: Tune:{0}", channel);
ITvSubChannel ch = null;
try
{
DVBIPChannel dvbipChannel = channel as DVBIPChannel;
if (dvbipChannel == null)
{
Log.Log.WriteFile("Channel is not a IP TV channel!!! {0}", channel.GetType().ToString());
return(null);
}
Log.Log.Info("dvbip: tune: Assigning oldChannel");
DVBIPChannel oldChannel = CurrentChannel as DVBIPChannel;
if (CurrentChannel != null)
{
//@FIX this fails for back-2-back recordings
//if (oldChannel.Equals(channel)) return _mapSubChannels[0];
Log.Log.Info("dvbip: tune: Current Channel != null {0}", CurrentChannel.ToString());
}
else
{
Log.Log.Info("dvbip: tune: Current channel is null");
}
if (_graphState == GraphState.Idle)
{
Log.Log.Info("dvbip: tune: Building graph");
BuildGraph();
if (_mapSubChannels.ContainsKey(subChannelId) == false)
{
subChannelId = GetNewSubChannel(channel);
}
}
else
{
Log.Log.Info("dvbip: tune: Graph is running");
}
//_pmtPid = -1;
Log.Log.Info("dvb:Submiting tunerequest Channel:{0} subChannel:{1} ", channel.Name, subChannelId);
if (_mapSubChannels.ContainsKey(subChannelId) == false)
{
Log.Log.Info("dvb:Getting new subchannel");
subChannelId = GetNewSubChannel(channel);
}
else
{
}
Log.Log.Info("dvb:Submit tunerequest size:{0} new:{1}", _mapSubChannels.Count, subChannelId);
_mapSubChannels[subChannelId].CurrentChannel = channel;
_mapSubChannels[subChannelId].OnBeforeTune();
if (_interfaceEpgGrabber != null)
{
_interfaceEpgGrabber.Reset();
}
Log.Log.WriteFile("dvb:Submit tunerequest calling put_TuneRequest");
_lastSignalUpdate = DateTime.MinValue;
_mapSubChannels[subChannelId].OnAfterTune();
ch = _mapSubChannels[subChannelId];
Log.Log.Info("dvbip: tune: Running graph for channel {0}", ch.ToString());
Log.Log.Info("dvbip: tune: SubChannel {0}", ch.SubChannelId);
try
{
RunGraph(ch.SubChannelId, dvbipChannel.Url);
}
catch (TvExceptionNoPMT)
{
if (!ignorePMT)
{
throw;
}
}
Log.Log.Info("dvbip: tune: Graph running. Returning {0}", ch.ToString());
return(ch);
}
catch (Exception ex)
{
if (ch != null)
{
FreeSubChannel(ch.SubChannelId);
}
Log.Log.Write(ex);
throw;
}
//unreachable return null;
}