Hi Jianhua, The patch is designed for cases when a component doesn't allocate frames, but only uses frames that come from outside (for example, from a decoder) and has requirements for them. In cases where flags are configured this way, we can avoid unnecessary surface copying, while the default behavior remains unchanged.
For example, an AMF encoder with enabled PA wants frames to come from the decoder with the D3D11_BIND_SHADER_RESOURCE flag (in the case of DirectX 11). Some filters(especially shader based) may also have requirements for necessary flags. Sincerely, Ovchinnikov D.A. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
