/// <summary>
/// </summary>
/// <param name="pGraph"></param>
/// <param name="pSrc"></param>
/// <param name="pDest"></param>
/// <returns></returns>
public static bool ConnectFilters(this IGraphBuilder pGraph, IBaseFilter pSrc, IBaseFilter pDest)
{
// Find an output pin on the first filter.
IPin pIn = pDest.FindUnconnectedPin(PinDirection.Input);
IPin pOut = pSrc.FindUnconnectedPin(PinDirection.Output);
if (pIn == null || pOut == null) return false;
int hresult = pGraph.Connect(pOut, pIn);
Marshal.ThrowExceptionForHR(hresult);
pIn.Dispose();
pOut.Dispose();
return true;
}