Initial

dvcap/Nuker.cpp

@@ -0,0 +1,49 @@
+#include <dvcap/nuker.hpp>
+
+Nuker::Nuker(ComPointer<IGraphBuilder> &graphBuilder)
+: mGraphBuilder(graphBuilder)
+{
+  mGraphBuilder->AddRef();    // make sure this does what you want (ie) we don't want the
+}                             // graphBuilder to be destroyed when the constructor fires 
+
+Nuker::~Nuker()
+{
+}
+
+bool Nuker::nukeFilter(ComPointer<IBaseFilter> &baseFilter,bool nukeDownstream,bool isDeviceFilter)
+{
+  ComPointer<IEnumPins> enumPins;
+	ComPointer<IPin> pin;
+  ULONG fetched=0;
+  PIN_INFO pinInfo;
+
+  if(!baseFilter.isOkay())return false;
+  if(!ComResult(baseFilter->EnumPins((IEnumPins**)enumPins)).success())
+	  message("[Nuker::nukeFilter]baseFilter->EnumPins((IEnumPins**)enumPins) failed.");
+	enumPins->Reset();
+	while(ComResult(enumPins->Next(1,(IPin**)pin,&fetched)).success())
+	{
+	  ComPointer<IPin> toPin;
+		if(!pin.isOkay())break;
+	  if(ComResult(pin->ConnectedTo((IPin**)toPin)).success()&&toPin.isOkay())
+		{
+      if(!ComResult(toPin->QueryPinInfo(&pinInfo)).success())
+			  message("[Nuker::nukeFilter]toPin->QueryPinInfo(&pinInfo) Failed.");
+      if(PINDIR_INPUT==pinInfo.dir && nukeDownstream)
+			{
+			  ComPointer<IBaseFilter> pinFilter(pinInfo.pFilter);
+			  nukeFilter(pinFilter,nukeDownstream,isDeviceFilter);  // have to do something with first argument
+				mGraphBuilder->Disconnect(toPin);
+				mGraphBuilder->Disconnect(pin);
+				if(!isDeviceFilter)
+				{
+				  if(!ComResult(mGraphBuilder->RemoveFilter(pinInfo.pFilter)).success())
+					{
+					  message("[Nuker::nukeFilter] mGraphBuilder->RemoveFilter(pinInfo.pFilter).");
+					}
+				}
+			}
+		}
+	}
+	return true;
+}