custom intra quantization matrix Code outside libavcodec should access this field using av_codec_g/set_chroma_intra_matrix() - encoding: Set by user, can be NULL. - decoding: unused.
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custom intra quantization matrix Code outside libavcodec should access this field using av_codec_g/set_chroma_intra_matrix() - encoding: Set by user, can be NULL. - decoding: unused.