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DirectShow video into DirectX11 (.Net)

    Question

  • I need to send some video stream from DirectShow into a DirectX11 application. Also it requires that all graphics must be in the video memory. I have an inteface member like this

    public int PresentImage(IntPtr dwUserID, ref VMR9PresentationInfo lpPresInfo)
    
    

    But lpPresInfo contains only a pointer to DirectX9 surface. And after it I don't know what to do with such surface. If I create some off-screen surface with a shared handle I can't copy the DirectShow image to it while it's in video memory. The following throws an exception

    					IntPtr sourceSharedHandle;
    
    					Surface dx11Surface = Surface.CreateOffscreenPlain(p_device, 1280, 720, Format.A8B8G8R8, Pool.Default, out sourceSharedHandle);
    
    					p_device.UpdateSurface(currentSurface, dx11Surface);
    
    

    And also DirectX9 doesn't contain some method use a surface from DirectX11 shared handle. This exmaple doesn't help for DirectX11. Tell me please how can I cope with it.


    Friday, September 16, 2011 9:06 AM