private void AddFilter_Crossbar()
{
this.DX.Crossbar = null;
ICaptureGraphBuilder2 builder = null;
try
{
builder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
DsError.ThrowExceptionForHR(builder.SetFiltergraph(this.DX.FilterGraph));
object ppint = null;
builder.FindInterface(FindDirection.UpstreamOnly, Guid.Empty, this.DX.CaptureFilter, typeof(IAMCrossbar).GUID, out ppint);
if (ppint != null)
{
this.DX.Crossbar = (IAMCrossbar)ppint;
}
}
finally
{
SafeReleaseComObject(builder);
builder = null;
}
if (this.DX.Crossbar != null)
{
DsError.ThrowExceptionForHR(this.DX.FilterGraph.AddFilter((IBaseFilter)this.DX.Crossbar, "Crossbar"));
SetCrossbarInput(this.DX.Crossbar, this._VideoInput);
this._VideoInput = GetCrossbarInput(this.DX.Crossbar);
}
}
private static Camera_NET.VideoInput GetCrossbarInput(IAMCrossbar crossbar)
{
int num;
int num2;
Camera_NET.VideoInput input = Camera_NET.VideoInput.Default;
if (crossbar.get_PinCounts(out num2, out num) == 0)
{
int num4;
int num6;
int outputPinIndex = -1;
for (int i = 0; i < num2; i++)
{
PhysicalConnectorType type;
if ((crossbar.get_CrossbarPinInfo(false, i, out num4, out type) == 0) && (type == PhysicalConnectorType.Video_VideoDecoder))
{
outputPinIndex = i;
break;
}
}
if ((outputPinIndex != -1) && (crossbar.get_IsRoutedTo(outputPinIndex, out num6) == 0))
{
PhysicalConnectorType type2;
crossbar.get_CrossbarPinInfo(true, num6, out num4, out type2);
input = new Camera_NET.VideoInput(num6, type2);
}
}
return(input);
}
public void DisplayPropertyPage_Crossbar(IntPtr hwndOwner)
{
if (this.DX.Crossbar != null)
{
DisplayPropertyPageFilter((IBaseFilter)this.DX.Crossbar, hwndOwner);
this._VideoInput = GetCrossbarInput(this.DX.Crossbar);
}
}
private static void SetCrossbarInput(IAMCrossbar crossbar, Camera_NET.VideoInput videoInput)
{
int num;
int num2;
if (((videoInput.Type != Camera_NET.VideoInput.PhysicalConnectorType_Default) && (videoInput.Index != -1)) && (crossbar.get_PinCounts(out num2, out num) == 0))
{
int num5;
PhysicalConnectorType type;
int outputPinIndex = -1;
int inputPinIndex = -1;
for (int i = 0; i < num2; i++)
{
if ((crossbar.get_CrossbarPinInfo(false, i, out num5, out type) == 0) && (type == PhysicalConnectorType.Video_VideoDecoder))
{
outputPinIndex = i;
break;
}
}
for (int j = 0; j < num; j++)
{
if (((crossbar.get_CrossbarPinInfo(true, j, out num5, out type) == 0) && (type == videoInput.Type)) && (j == videoInput.Index))
{
inputPinIndex = j;
break;
}
}
if ((inputPinIndex == -1) || (outputPinIndex == -1))
{
throw new Exception("Can't find routing pins.");
}
if (crossbar.CanRoute(outputPinIndex, inputPinIndex) != 0)
{
throw new Exception("Can't route from selected VideoInput to VideoDecoder.");
}
DsError.ThrowExceptionForHR(crossbar.Route(outputPinIndex, inputPinIndex));
}
}
