Override the Transform Member Function

The Transform member function in your derived class is called each time the IMemInputPin::Receive method on the input pin of the filter is called to transfer another sample. Place the code that performs the actual purpose of the filter in this member function, or in the functions called from here. Copy transform filters will likely have a private Copy member function associated with the transform code, while transform-inplace functions will simply modify the code in one buffer.

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