private void GetTunerCapabilities()
{
Log.Log.WriteFile("ss2: GetTunerCapabilities");
_graphBuilder = (IFilterGraph2) new FilterGraph();
_rotEntry = new DsROTEntry(_graphBuilder);
_capBuilder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
_capBuilder.SetFiltergraph(_graphBuilder);
//=========================================================================================================
// add the skystar 2 specific filters
//=========================================================================================================
Log.Log.WriteFile("ss2:GetTunerCapabilities() create B2C2 adapter");
_filterB2C2Adapter =
(IBaseFilter)Activator.CreateInstance(Type.GetTypeFromCLSID(DVBSkyStar2Helper.CLSID_B2C2Adapter, false));
if (_filterB2C2Adapter == null)
{
Log.Log.Error("ss2:GetTunerCapabilities() _filterB2C2Adapter not found");
return;
}
_interfaceB2C2TunerCtrl = _filterB2C2Adapter as DVBSkyStar2Helper.IB2C2MPEG2TunerCtrl2;
if (_interfaceB2C2TunerCtrl == null)
{
Log.Log.Error("ss2: cannot get IB2C2MPEG2TunerCtrl3");
return;
}
//=========================================================================================================
// initialize skystar 2 tuner
//=========================================================================================================
/* Not necessary for query-only application
*
* Log.Log.WriteFile("ss2: Initialize Tuner()");
* hr = _interfaceB2C2TunerCtrl.Initialize();
* if (hr != 0)
* {
* Log.Log.Error("ss2: Tuner initialize failed:0x{0:X}", hr);
* //return;
* }*/
//=========================================================================================================
// Get tuner type (DVBS, DVBC, DVBT, ATSC)
//=========================================================================================================
int lTunerCapSize = Marshal.SizeOf(typeof(tTunerCapabilities));
IntPtr ptCaps = Marshal.AllocHGlobal(lTunerCapSize);
int hr = _interfaceB2C2TunerCtrl.GetTunerCapabilities(ptCaps, ref lTunerCapSize);
if (hr != 0)
{
Log.Log.Error("ss2: Tuner Type failed:0x{0:X}", hr);
return;
}
tTunerCapabilities tc = (tTunerCapabilities)Marshal.PtrToStructure(ptCaps, typeof(tTunerCapabilities));
switch (tc.eModulation)
{
case TunerType.ttSat:
Log.Log.WriteFile("ss2: Card type = DVBS");
_cardType = CardType.DvbS;
break;
case TunerType.ttCable:
Log.Log.WriteFile("ss2: Card type = DVBC");
_cardType = CardType.DvbC;
break;
case TunerType.ttTerrestrial:
Log.Log.WriteFile("ss2: Card type = DVBT");
_cardType = CardType.DvbT;
break;
case TunerType.ttATSC:
Log.Log.WriteFile("ss2: Card type = ATSC");
_cardType = CardType.Atsc;
break;
case TunerType.ttUnknown:
Log.Log.WriteFile("ss2: Card type = unknown?");
_cardType = CardType.DvbS;
break;
}
Marshal.FreeHGlobal(ptCaps);
// Release all used object
if (_filterB2C2Adapter != null)
{
Release.ComObject("tuner filter", _filterB2C2Adapter);
_filterB2C2Adapter = null;
}
_rotEntry.Dispose();
if (_capBuilder != null)
{
Release.ComObject("capture builder", _capBuilder);
_capBuilder = null;
}
if (_graphBuilder != null)
{
Release.ComObject("graph builder", _graphBuilder);
_graphBuilder = null;
}
}
private void GetTunerCapabilities()
{
Log.Log.WriteFile("ss2: GetTunerCapabilities");
_graphBuilder = (IFilterGraph2)new FilterGraph();
_rotEntry = new DsROTEntry(_graphBuilder);
_capBuilder = (ICaptureGraphBuilder2)new CaptureGraphBuilder2();
_capBuilder.SetFiltergraph(_graphBuilder);
//=========================================================================================================
// add the skystar 2 specific filters
//=========================================================================================================
Log.Log.WriteFile("ss2:GetTunerCapabilities() create B2C2 adapter");
_filterB2C2Adapter =
(IBaseFilter)Activator.CreateInstance(Type.GetTypeFromCLSID(DVBSkyStar2Helper.CLSID_B2C2Adapter, false));
if (_filterB2C2Adapter == null)
{
Log.Log.Error("ss2:GetTunerCapabilities() _filterB2C2Adapter not found");
return;
}
_interfaceB2C2TunerCtrl = _filterB2C2Adapter as DVBSkyStar2Helper.IB2C2MPEG2TunerCtrl2;
if (_interfaceB2C2TunerCtrl == null)
{
Log.Log.Error("ss2: cannot get IB2C2MPEG2TunerCtrl3");
return;
}
//=========================================================================================================
// initialize skystar 2 tuner
//=========================================================================================================
/* Not necessary for query-only application
Log.Log.WriteFile("ss2: Initialize Tuner()");
hr = _interfaceB2C2TunerCtrl.Initialize();
if (hr != 0)
{
Log.Log.Error("ss2: Tuner initialize failed:0x{0:X}", hr);
//return;
}*/
//=========================================================================================================
// Get tuner type (DVBS, DVBC, DVBT, ATSC)
//=========================================================================================================
int lTunerCapSize = Marshal.SizeOf(typeof (tTunerCapabilities));
IntPtr ptCaps = Marshal.AllocHGlobal(lTunerCapSize);
int hr = _interfaceB2C2TunerCtrl.GetTunerCapabilities(ptCaps, ref lTunerCapSize);
if (hr != 0)
{
Log.Log.Error("ss2: Tuner Type failed:0x{0:X}", hr);
return;
}
tTunerCapabilities tc = (tTunerCapabilities)Marshal.PtrToStructure(ptCaps, typeof (tTunerCapabilities));
switch (tc.eModulation)
{
case TunerType.ttSat:
Log.Log.WriteFile("ss2: Card type = DVBS");
_cardType = CardType.DvbS;
break;
case TunerType.ttCable:
Log.Log.WriteFile("ss2: Card type = DVBC");
_cardType = CardType.DvbC;
break;
case TunerType.ttTerrestrial:
Log.Log.WriteFile("ss2: Card type = DVBT");
_cardType = CardType.DvbT;
break;
case TunerType.ttATSC:
Log.Log.WriteFile("ss2: Card type = ATSC");
_cardType = CardType.Atsc;
break;
case TunerType.ttUnknown:
Log.Log.WriteFile("ss2: Card type = unknown?");
_cardType = CardType.DvbS;
break;
}
Marshal.FreeHGlobal(ptCaps);
// Release all used object
if (_filterB2C2Adapter != null)
{
Release.ComObject("tuner filter", _filterB2C2Adapter);
_filterB2C2Adapter = null;
}
_rotEntry.Dispose();
if (_capBuilder != null)
{
Release.ComObject("capture builder", _capBuilder);
_capBuilder = null;
}
if (_graphBuilder != null)
{
Release.ComObject("graph builder", _graphBuilder);
_graphBuilder = null;
}
}
