itunercap

[DMAN]

Does anyone have experience on how to use the ITunderCap interface?
I'm trying to identify the BDA tuning capabilities of the tuner filter in a graph.

DMAN

[DMAN]

Sorted it

Here is a BDA sample for others to use in the future:

void DetectCards()
{
  ITunerCap _providerType;
  //BDA TV devices
  devices = DsDevice.GetDevicesOfCat(FilterCategory.BDASourceFiltersCategory);
  if (devices.Length > 0)
  {
    IFilterGraph2 graphBuilder = (IFilterGraph2)new FilterGraph();
    DsROTEntry rotEntry = new DsROTEntry(graphBuilder);
    //MS Network Provider - MCE 2005 Roll-up 2 or better
    networkProviderClsId = typeof(NetworkProvider).GUID;
    for (int i = 0; i < devices.Length; i++)
    {
      string name = devices[i].Name ?? "unknown";
      name = name.ToLowerInvariant();
      Log.Log.WriteFile("Found card:{0}", name);
      IBaseFilter tmp;
      graphBuilder.AddSourceFilterForMoniker(devices[i].Mon, null, name, out tmp);
        IBaseFilter networkDVB = FilterGraphTools.AddFilterFromClsid(graphBuilder, networkProviderClsId, "Microsoft Network Provider");
        if (ConnectFilter(graphBuilder, networkDVB, tmp))
        {
          Log.Log.WriteFile("Detected DVB card:{0}", name);
          // determine the DVB card supported GUIDs here!
          _providerType = networkDVB as ITunerCap;
          int ulcNetworkTypesMax = 1;
          int pulcNetworkTypes;
          Guid[] lpDeinterlaceModes = new Guid[ulcNetworkTypesMax];
          int hr = _providerType.get_SupportedNetworkTypes(ulcNetworkTypesMax, out pulcNetworkTypes, lpDeinterlaceModes);
          Log.Log.Debug("Number of SupportedNetworkTypes = {0}", pulcNetworkTypes);
          for (int n = 0; n < pulcNetworkTypes; n++)
          {
            Log.Log.Debug("SupportedNetworkTypes = {0}", lpDeinterlaceModes[n]);
          }
          //test the first found guid to determine the DVB card type
          if (lpDeinterlaceModes[0] == (typeof(DVBTNetworkProvider).GUID))
          {
            Log.Log.WriteFile("Detected DVB-T* card:{0}", name);
            TvCardDVBT dvbtCard = new TvCardDVBT(_epgEvents, devices[i]);
            _cards.Add(dvbtCard);
          }
          else if (lpDeinterlaceModes[0] == (typeof(DVBSNetworkProvider).GUID))
          {
            Log.Log.WriteFile("Detected DVB-S* card:{0}", name);
            TvCardDVBS dvbsCard = new TvCardDVBS(_epgEvents, devices[i]);
            _cards.Add(dvbsCard);
          }
          else if (lpDeinterlaceModes[0] == (typeof(DVBCNetworkProvider).GUID))
          {
            Log.Log.WriteFile("Detected DVB-C* card:{0}", name);
            TvCardDVBC dvbcCard = new TvCardDVBC(_epgEvents, devices[i]);
            _cards.Add(dvbcCard);
          }
          else if (lpDeinterlaceModes[0] == (typeof(ATSCNetworkProvider).GUID))
          {
            Log.Log.WriteFile("Detected ATSC* card:{0}", name);
            TvCardATSC dvbsCard = new TvCardATSC(_epgEvents, devices[i]);
            _cards.Add(dvbsCard);
          }
          graphBuilder.RemoveFilter(tmp);
          Release.ComObject("tmp filter", tmp);
        }
        Log.Log.WriteFile("Not connected with generic MS Network Provider, using the original method");
        graphBuilder.RemoveFilter(networkDVB);
        Release.ComObject("ms provider", networkDVB);
      }
    FilterGraphTools.RemoveAllFilters(graphBuilder);
    rotEntry.Dispose();
    Release.ComObject("graph builder", graphBuilder);
  }
}