mfplat: Implement MFInitAMMediaTypeFromMFMediaType and related functions.
IMFMediaType_(Get|Free)Representation is called by Samurai Maiden, MFInitAMMediaTypeFromMFMediaType could be useful to simplify DMO / MFT transforms implementations.
IMFMediaType_(Get|Free)Representation is called by Samurai Maiden, MFInitAMMediaTypeFromMFMediaType could be useful to simplify DMO / MFT transforms implementations.