public void InitializeGraph()
{
int hr = 0;
graphBuilder = (IFilterGraph2) new FilterGraph();
rot = new DsROTEntry(graphBuilder);
ICaptureGraphBuilder2 capBuilder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
capBuilder.SetFiltergraph(graphBuilder);
// Get the BDA network provider specific for this given network type
networkProvider = BDAUtils.GetNetworkProvider(networkType);
hr = graphBuilder.AddFilter(networkProvider, "BDA Network Provider");
DsError.ThrowExceptionForHR(hr);
tuner = (ITuner)networkProvider;
// found a BDA Tuner and a BDA Capture that can connect to this network provider
BDAUtils.AddBDATunerAndDemodulatorToGraph(graphBuilder, networkProvider, out bdaTuner, out bdaCapture);
if ((bdaTuner != null) && (bdaCapture != null))
{
// Create and add the mpeg2 demux
mpeg2Demux = (IBaseFilter) new MPEG2Demultiplexer();
hr = graphBuilder.AddFilter(mpeg2Demux, "MPEG2 Demultiplexer");
DsError.ThrowExceptionForHR(hr);
// connect it to the BDA Capture
hr = capBuilder.RenderStream(null, null, bdaCapture, null, mpeg2Demux);
DsError.ThrowExceptionForHR(hr);
// Add the two mpeg2 transport stream helper filters
BDAUtils.AddTransportStreamFiltersToGraph(graphBuilder, out bdaTIF, out bdaSecTab);
if ((bdaTIF != null) && (bdaSecTab != null))
{
// Render all the output pins of the demux (missing filters are added)
for (int i = 0; i < 5; i++)
{
IPin pin = DsFindPin.ByDirection(mpeg2Demux, PinDirection.Output, i);
hr = graphBuilder.Render(pin);
Marshal.ReleaseComObject(pin);
}
}
else
{
throw new ApplicationException("Can't add the BDA support filters");
}
}
else
{
throw new ApplicationException("Can't add a tuner and a demodulator");
}
}
public void MakeTuneRequest()
{
int hr = 0;
ILocator locator;
// Get a tuning space for this network type
tuningSpace = BDAUtils.GetTuningSpace(networkType);
hr = tuner.put_TuningSpace(tuningSpace);
DsError.ThrowExceptionForHR(hr);
// Create a tune request from this tuning space
tuneRequest = BDAUtils.CreateTuneRequest(tuningSpace);
// Is it okay ?
hr = tuner.Validate(tuneRequest);
//DsError.ThrowExceptionForHR(hr);
if (networkType == BDANetworkType.DVBT)
{
// Those values are valid for me but must be modified to be valid depending on your location
hr = tuneRequest.get_Locator(out locator);
DsError.ThrowExceptionForHR(hr);
hr = locator.put_CarrierFrequency(586166);
DsError.ThrowExceptionForHR(hr);
hr = tuneRequest.put_Locator(locator);
DsError.ThrowExceptionForHR(hr);
Marshal.ReleaseComObject(locator);
hr = (tuneRequest as IDVBTuneRequest).put_ONID(8442);
DsError.ThrowExceptionForHR(hr);
hr = (tuneRequest as IDVBTuneRequest).put_TSID(1);
DsError.ThrowExceptionForHR(hr);
hr = (tuneRequest as IDVBTuneRequest).put_SID(259);
DsError.ThrowExceptionForHR(hr);
/*
* hr = locator.put_CarrierFrequency(522166);
* DsError.ThrowExceptionForHR(hr);
*
* hr = tuneRequest.put_Locator(locator);
* DsError.ThrowExceptionForHR(hr);
*
* Marshal.ReleaseComObject(locator);
*
* hr = (tuneRequest as IDVBTuneRequest).put_ONID(8442);
* DsError.ThrowExceptionForHR(hr);
* hr = (tuneRequest as IDVBTuneRequest).put_TSID(3);
* DsError.ThrowExceptionForHR(hr);
* hr = (tuneRequest as IDVBTuneRequest).put_SID(769);
* DsError.ThrowExceptionForHR(hr);
*/
/*
* hr = locator.put_CarrierFrequency(562166);
* DsError.ThrowExceptionForHR(hr);
*
* hr = tuneRequest.put_Locator(locator);
* DsError.ThrowExceptionForHR(hr);
*
* Marshal.ReleaseComObject(locator);
*
* hr = (tuneRequest as IDVBTuneRequest).put_ONID(8442);
* DsError.ThrowExceptionForHR(hr);
* hr = (tuneRequest as IDVBTuneRequest).put_TSID(6);
* DsError.ThrowExceptionForHR(hr);
* hr = (tuneRequest as IDVBTuneRequest).put_SID(1537);
* DsError.ThrowExceptionForHR(hr);
*/
}
if (networkType == BDANetworkType.DVBS)
{
// Those values are valid for me but must be modified to be valid depending on your Satellite dish
/*
* hr = tuneRequest.get_Locator(out locator);
* DsError.ThrowExceptionForHR(hr);
*
* hr = locator.put_CarrierFrequency(11591000);
* DsError.ThrowExceptionForHR(hr);
*
* hr = (locator as IDVBSLocator).put_SignalPolarisation(Polarisation.LinearV);
* DsError.ThrowExceptionForHR(hr);
*
* hr = locator.put_SymbolRate(20000);
* DsError.ThrowExceptionForHR(hr);
*
* hr = tuneRequest.put_Locator(locator);
* DsError.ThrowExceptionForHR(hr);
*
* Marshal.ReleaseComObject(locator);
*
* hr = (tuneRequest as IDVBTuneRequest).put_ONID(8442);
* DsError.ThrowExceptionForHR(hr);
* hr = (tuneRequest as IDVBTuneRequest).put_TSID(1);
* DsError.ThrowExceptionForHR(hr);
* hr = (tuneRequest as IDVBTuneRequest).put_SID(260);
* DsError.ThrowExceptionForHR(hr);
*/
hr = tuneRequest.get_Locator(out locator);
DsError.ThrowExceptionForHR(hr);
hr = locator.put_CarrierFrequency(11607000);
DsError.ThrowExceptionForHR(hr);
hr = (locator as IDVBSLocator).put_SignalPolarisation(Polarisation.LinearV);
DsError.ThrowExceptionForHR(hr);
hr = locator.put_SymbolRate(6944);
DsError.ThrowExceptionForHR(hr);
hr = tuneRequest.put_Locator(locator);
DsError.ThrowExceptionForHR(hr);
Marshal.ReleaseComObject(locator);
hr = (tuneRequest as IDVBTuneRequest).put_ONID(144);
DsError.ThrowExceptionForHR(hr);
hr = (tuneRequest as IDVBTuneRequest).put_TSID(100);
DsError.ThrowExceptionForHR(hr);
hr = (tuneRequest as IDVBTuneRequest).put_SID(289);
DsError.ThrowExceptionForHR(hr);
}
hr = tuner.put_TuneRequest(tuneRequest);
if (hr < 0)
{
Debug.Fail("TuneRequest is not valid");
}
}
