private void RenderToNullRenderer(IDESCombineCB audioCallback, IDESCombineCB videoCallback)
{
int hr;
ICaptureGraphBuilder2 icgb = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
try
{
hr = icgb.SetFiltergraph(_graph);
DESError.ThrowExceptionForHR(hr);
IBaseFilter audioDest = StandardFilters.RenderNull(_dc, _graph);
IBaseFilter videoDest = StandardFilters.RenderNull(_dc, _graph);
try
{
RenderGroups(icgb, null, null, audioDest, videoDest, audioCallback, videoCallback);
}
finally
{
if (audioDest != null)
{
Marshal.ReleaseComObject(audioDest);
}
if (videoDest != null)
{
Marshal.ReleaseComObject(videoDest);
}
}
}
finally
{
Marshal.ReleaseComObject(icgb);
}
}
private void RenderToNullRenderer(ICallbackParticipant[] audioParticipants,
ICallbackParticipant[] videoParticipants)
{
int hr;
var graphBuilder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
try
{
hr = graphBuilder.SetFiltergraph(Graph);
DESError.ThrowExceptionForHR(hr);
IBaseFilter audioDest = StandardFilters.RenderNull(Cleanup, Graph);
IBaseFilter videoDest = StandardFilters.RenderNull(Cleanup, Graph);
try
{
RenderGroups(graphBuilder, null, null, audioDest, videoDest, audioParticipants, videoParticipants);
}
finally
{
if (audioDest != null)
{
Marshal.ReleaseComObject(audioDest);
}
if (videoDest != null)
{
Marshal.ReleaseComObject(videoDest);
}
}
DisableClock();
}
finally
{
Marshal.ReleaseComObject(graphBuilder);
}
}