protected override void SetChannel(Channel channel)
{
if (channel == null)
{
throw new ArgumentNullException("channel");
}
ITuneRequest tuneRequest;
int hr = tuningSpace.CreateTuneRequest(out tuneRequest);
DsError.ThrowExceptionForHR(hr);
IATSCChannelTuneRequest atscRequest = (IATSCChannelTuneRequest)tuneRequest;
IATSCLocator locator = (IATSCLocator) new ATSCLocator();
locator.put_CarrierFrequency(channel.CarrierFrequency);
locator.put_PhysicalChannel(channel.PhysicalChannel);
atscRequest.put_Locator(locator);
atscRequest.put_Channel(channel.MajorChannel);
atscRequest.put_MinorChannel(channel.MinorChannel);
hr = tuner.put_TuneRequest(atscRequest);
DsError.ThrowExceptionForHR(hr);
ReleaseComObject(tuneRequest);
}
private void TestCreateTuneRequest()
{
int hr = 0;
ITuneRequest tuneReq;
hr = tuningSpace.CreateTuneRequest(out tuneReq);
DsError.ThrowExceptionForHR(hr);
Debug.Assert((hr == 0) && (tuneReq != null), "ITuningSpace.CreateTuneRequest");
// ATSC tuning spaces create ATSC tune request...
Debug.Assert(tuneReq is IATSCChannelTuneRequest, "ITuningSpace.CreateTuneRequest");
Marshal.ReleaseComObject(tuneReq);
}
public static ITuneRequest CreateTuneRequest(ITuningSpace ts)
{
int hr = 0;
ITuneRequest tr = null;
Guid networkType;
hr = ts.CreateTuneRequest(out tr);
DsError.ThrowExceptionForHR(hr);
hr = ts.get__NetworkType(out networkType);
if (networkType == typeof(ATSCNetworkProvider).GUID)
{
// I know nothing about ATSC so thoses lines are pure speculation
hr = (tr as IATSCChannelTuneRequest).put_Channel(-1);
IATSCLocator locator = (IATSCLocator) new ATSCLocator();
hr = locator.put_CarrierFrequency(-1);
hr = tr.put_Locator(locator as ILocator);
}
else if (networkType == typeof(DVBTNetworkProvider).GUID)
{
hr = (tr as IDVBTuneRequest).put_ONID(-1);
hr = (tr as IDVBTuneRequest).put_TSID(-1);
hr = (tr as IDVBTuneRequest).put_SID(-1);
IDVBTLocator locator = (IDVBTLocator) new DVBTLocator();
hr = locator.put_CarrierFrequency(-1);
hr = tr.put_Locator(locator as ILocator);
}
else if (networkType == typeof(DVBSNetworkProvider).GUID)
{
hr = (tr as IDVBTuneRequest).put_ONID(-1);
hr = (tr as IDVBTuneRequest).put_TSID(-1);
hr = (tr as IDVBTuneRequest).put_SID(-1);
IDVBSLocator locator = (IDVBSLocator) new DVBSLocator();
hr = locator.put_CarrierFrequency(-1);
hr = locator.put_SymbolRate(-1);
hr = tr.put_Locator(locator as ILocator);
}
return(tr);
}
public void UpdateService(string serviceId, ITuningSpace tuningSpace, IGuideData guideData)
{
Trace.WriteLineIf(trace.TraceInfo, "EPG.UpdateService(" + serviceId + ")");
if (serviceId == null)
{
UpdateAllService(guideData);
}
else if (tuningSpace != null && NeedServiceUpdate(serviceId))
{
// serviceId = "ONID:TSID:SID"
string[] serviceIds = serviceId.Split(new char[] { ':' });
int onid = int.Parse(serviceIds[0]);
int tsid = int.Parse(serviceIds[1]);
int sid = int.Parse(serviceIds[2]);
ITuneRequest tr;
tuningSpace.CreateTuneRequest(out tr);
IDVBTuneRequest tuneRequest = (IDVBTuneRequest)tr;
tuneRequest.put_ONID(onid);
tuneRequest.put_TSID(tsid);
tuneRequest.put_SID(sid);
UpdateService(tuneRequest, guideData);
}
}
public void UpdateService(string serviceId, ITuningSpace tuningSpace, IGuideData guideData)
{
Trace.WriteLineIf(trace.TraceInfo, "EPG.UpdateService(" + serviceId + ")");
if (serviceId == null)
UpdateAllService(guideData);
else if (tuningSpace != null && NeedServiceUpdate(serviceId))
{
// serviceId = "ONID:TSID:SID"
string[] serviceIds = serviceId.Split(new char[] { ':' });
int onid = int.Parse(serviceIds[0]);
int tsid = int.Parse(serviceIds[1]);
int sid = int.Parse(serviceIds[2]);
ITuneRequest tr;
tuningSpace.CreateTuneRequest(out tr);
IDVBTuneRequest tuneRequest = (IDVBTuneRequest)tr;
tuneRequest.put_ONID(onid);
tuneRequest.put_TSID(tsid);
tuneRequest.put_SID(sid);
UpdateService(tuneRequest, guideData);
}
}
private void createTuneRequest(ITuningSpace tuningSpace, TuningSpec tuningSpec)
{
reply = tuningSpace.CreateTuneRequest(out tuneRequest);
DsError.ThrowExceptionForHR(reply);
if (tuningSpec.Frequency.TunerType == TunerType.Satellite ||
tuningSpec.Frequency.TunerType == TunerType.Terrestrial ||
tuningSpec.Frequency.TunerType == TunerType.Cable)
{
LogMessage("Creating DVB tune request");
reply = ((IDVBTuneRequest)tuneRequest).put_ONID(-1);
DsError.ThrowExceptionForHR(reply);
reply = ((IDVBTuneRequest)tuneRequest).put_TSID(-1);
DsError.ThrowExceptionForHR(reply);
reply = ((IDVBTuneRequest)tuneRequest).put_SID(-1);
DsError.ThrowExceptionForHR(reply);
}
else
{
if (tuningSpec.Frequency.TunerType == TunerType.ATSC || tuningSpec.Frequency.TunerType == TunerType.ATSCCable)
{
LogMessage("Creating ATSC tune request");
reply = ((IATSCChannelTuneRequest)tuneRequest).put_Channel(-1);
DsError.ThrowExceptionForHR(reply);
reply = ((IATSCChannelTuneRequest)tuneRequest).put_MinorChannel(-1);
DsError.ThrowExceptionForHR(reply);
}
else
{
if (tuningSpec.Frequency.TunerType == TunerType.ClearQAM)
{
LogMessage("Creating Clear QAM tune request");
reply = ((IDigitalCableTuneRequest)tuneRequest).put_Channel(-1);
DsError.ThrowExceptionForHR(reply);
reply = ((IDigitalCableTuneRequest)tuneRequest).put_MinorChannel(-1);
DsError.ThrowExceptionForHR(reply);
}
else
{
if (tuningSpec.Frequency.TunerType == TunerType.ISDBS ||
tuningSpec.Frequency.TunerType == TunerType.ISDBT)
{
LogMessage("Creating ISDB tune request");
reply = ((IDVBTuneRequest)tuneRequest).put_ONID(-1);
DsError.ThrowExceptionForHR(reply);
reply = ((IDVBTuneRequest)tuneRequest).put_TSID(-1);
DsError.ThrowExceptionForHR(reply);
reply = ((IDVBTuneRequest)tuneRequest).put_SID(-1);
DsError.ThrowExceptionForHR(reply);
}
}
}
}
reply = tuneRequest.put_Locator(getLocator(tuningSpec));
DsError.ThrowExceptionForHR(reply);
}
