private bool BeforeTune(ref int subChannelId, IChannel channel)
{
DVBSChannel dvbsChannel = channel as DVBSChannel;
if (dvbsChannel == null)
{
Log.Log.WriteFile("Channel is not a DVBS channel!!! {0}", channel.GetType().ToString());
return(false);
}
/*if (CurrentChannel != null)
* {
* //@FIX this fails for back-2-back recordings
* //if (oldChannel.Equals(channel)) return _mapSubChannels[0];
* }*/
if (dvbsChannel.SwitchingFrequency < 10)
{
dvbsChannel.SwitchingFrequency = 11700000;
}
Log.Log.WriteFile("dvbs: Tune:{0}", channel);
if (_graphState == GraphState.Idle)
{
BuildGraph();
}
if (_mapSubChannels.ContainsKey(subChannelId) == false)
{
subChannelId = GetNewSubChannel(channel);
}
if (useInternalNetworkProvider)
{
//set the DisEqC parameters
if (_conditionalAccess != null)
{
//int hr2 = ((IMediaControl)_graphBuilder).Pause();
_diseqCsucceded = _conditionalAccess.SendDiseqcCommand(_parameters, dvbsChannel);
//hr2 = ((IMediaControl)_graphBuilder).Run();
//move diseqc motor to correct satellite
if (dvbsChannel != null && dvbsChannel.SatelliteIndex > 0 && _conditionalAccess.DiSEqCMotor != null)
{
_conditionalAccess.DiSEqCMotor.GotoPosition((byte)dvbsChannel.SatelliteIndex);
}
}
return(true);
}
if (_previousChannel == null || _previousChannel.IsDifferentTransponder(dvbsChannel))
{
//_pmtPid = -1;
ILocator locator;
int lowOsc;
int hiOsc;
int lnbSwitch;
BandTypeConverter.GetDefaultLnbSetup(Parameters, dvbsChannel.BandType, out lowOsc, out hiOsc, out lnbSwitch);
Log.Log.Info("LNB low:{0} hi:{1} switch:{2}", lowOsc, hiOsc, lnbSwitch);
if (lnbSwitch == 0)
{
lnbSwitch = 18000;
}
IDVBSTuningSpace tuningSpace = (IDVBSTuningSpace)_tuningSpace;
tuningSpace.put_LNBSwitch(lnbSwitch * 1000);
tuningSpace.put_LowOscillator(lowOsc * 1000);
tuningSpace.put_HighOscillator(hiOsc * 1000);
ITuneRequest request;
_tuningSpace.CreateTuneRequest(out request);
_tuneRequest = (IDVBTuneRequest)request;
_tuningSpace.get_DefaultLocator(out locator);
IDVBSLocator dvbsLocator = (IDVBSLocator)locator;
IDVBTuneRequest tuneRequest = (IDVBTuneRequest)_tuneRequest;
tuneRequest.put_ONID(dvbsChannel.NetworkId);
tuneRequest.put_SID(dvbsChannel.ServiceId);
tuneRequest.put_TSID(dvbsChannel.TransportId);
locator.put_CarrierFrequency((int)dvbsChannel.Frequency);
dvbsLocator.put_SymbolRate(dvbsChannel.SymbolRate);
dvbsLocator.put_SignalPolarisation(dvbsChannel.Polarisation);
// Set DVB-S2 and manufacturer specific tuning parameters here.
//-------------------------------------------------------------------
// Important: the original dvbsChannel object *must not* be modified
// otherwise IsDifferentTransponder() will sometimes returns true
// when it shouldn't. See mantis 0002979.
//-------------------------------------------------------------------
DVBSChannel tuneChannel = new DVBSChannel(dvbsChannel);
if (_conditionalAccess != null)
{
tuneChannel = _conditionalAccess.SetDVBS2Modulation(_parameters, tuneChannel);
}
dvbsLocator.put_Modulation(tuneChannel.ModulationType);
Log.Log.WriteFile("dvbs:channel modulation is set to {0}", tuneChannel.ModulationType);
dvbsLocator.put_InnerFECRate(tuneChannel.InnerFecRate);
Log.Log.WriteFile("dvbs:channel FECRate is set to {0}", tuneChannel.InnerFecRate);
_tuneRequest.put_Locator(locator);
//set the DisEqC parameters
if (_conditionalAccess != null)
{
//int hr2 = ((IMediaControl)_graphBuilder).Pause();
_diseqCsucceded = _conditionalAccess.SendDiseqcCommand(_parameters, dvbsChannel);
//hr2 = ((IMediaControl)_graphBuilder).Run();
//move diseqc motor to correct satellite
if (dvbsChannel != null && dvbsChannel.SatelliteIndex > 0 && _conditionalAccess.DiSEqCMotor != null)
{
_conditionalAccess.DiSEqCMotor.GotoPosition((byte)dvbsChannel.SatelliteIndex);
}
}
}
_dvbsChannel = dvbsChannel;
return(true);
}
/// <summary>
/// Creates the tuning space.
/// </summary>
protected void CreateTuningSpace()
{
Log.Log.WriteFile("dvbs:CreateTuningSpace()");
ITuner tuner = (ITuner)_filterNetworkProvider;
SystemTuningSpaces systemTuningSpaces = new SystemTuningSpaces();
ITuningSpaceContainer container = systemTuningSpaces as ITuningSpaceContainer;
if (container == null)
{
Log.Log.Error("CreateTuningSpace() Failed to get ITuningSpaceContainer");
return;
}
IEnumTuningSpaces enumTuning;
ITuningSpace[] spaces = new ITuningSpace[2];
int lowOsc;
int hiOsc;
int lnbSwitch;
if (_parameters.UseDefaultLnbFrequencies)
{
lowOsc = 9750;
hiOsc = 10600;
lnbSwitch = 11700;
}
else
{
lowOsc = _parameters.LnbLowFrequency;
hiOsc = _parameters.LnbHighFrequency;
lnbSwitch = _parameters.LnbSwitchFrequency;
}
ITuneRequest request;
container.get_EnumTuningSpaces(out enumTuning);
IDVBSTuningSpace tuningSpace;
while (true)
{
int fetched;
enumTuning.Next(1, spaces, out fetched);
if (fetched != 1)
{
break;
}
string name;
spaces[0].get_UniqueName(out name);
if (name == "MediaPortal DVBS TuningSpace")
{
Log.Log.WriteFile("dvbs:found correct tuningspace {0}", name);
_tuningSpace = (IDVBSTuningSpace)spaces[0];
tuningSpace = (IDVBSTuningSpace)_tuningSpace;
tuningSpace.put_LNBSwitch(lnbSwitch * 1000);
tuningSpace.put_SpectralInversion(SpectralInversion.Automatic);
tuningSpace.put_LowOscillator(lowOsc * 1000);
tuningSpace.put_HighOscillator(hiOsc * 1000);
tuner.put_TuningSpace(tuningSpace);
tuningSpace.CreateTuneRequest(out request);
_tuneRequest = (IDVBTuneRequest)request;
return;
}
Release.ComObject("ITuningSpace", spaces[0]);
}
Release.ComObject("IEnumTuningSpaces", enumTuning);
Log.Log.WriteFile("dvbs:Create new tuningspace");
_tuningSpace = (IDVBSTuningSpace) new DVBSTuningSpace();
tuningSpace = (IDVBSTuningSpace)_tuningSpace;
tuningSpace.put_UniqueName("MediaPortal DVBS TuningSpace");
tuningSpace.put_FriendlyName("MediaPortal DVBS TuningSpace");
tuningSpace.put__NetworkType(typeof(DVBSNetworkProvider).GUID);
tuningSpace.put_SystemType(DVBSystemType.Satellite);
tuningSpace.put_LNBSwitch(lnbSwitch * 1000);
tuningSpace.put_LowOscillator(lowOsc * 1000);
tuningSpace.put_HighOscillator(hiOsc * 1000);
IDVBSLocator locator = (IDVBSLocator) new DVBSLocator();
locator.put_CarrierFrequency(-1);
locator.put_InnerFEC(FECMethod.MethodNotSet);
locator.put_InnerFECRate(BinaryConvolutionCodeRate.RateNotSet);
locator.put_Modulation(ModulationType.ModNotSet);
locator.put_OuterFEC(FECMethod.MethodNotSet);
locator.put_OuterFECRate(BinaryConvolutionCodeRate.RateNotSet);
locator.put_SymbolRate(-1);
object newIndex;
_tuningSpace.put_DefaultLocator(locator);
container.Add(_tuningSpace, out newIndex);
tuner.put_TuningSpace(_tuningSpace);
Release.ComObject("TuningSpaceContainer", container);
_tuningSpace.CreateTuneRequest(out request);
_tuneRequest = (IDVBTuneRequest)request;
}
