The WMV decoder also exposes `MF_LOW_LATENCY` and `MF_SA_D3D11_AWARE`, and I think we could also make the H264 decoder expose `MF_SA_D3D_AWARE` as well.
Moving only codec-specific attributes out: `AVDecVideoAcceleration_H264` here, and later keeping `MFT_DECODER_EXPOSE_OUTPUT_TYPES_IN_NATIVE_ORDER` wmv specific, would be better IMO.