custom intra quantization matrix
Must be allocated with the av_malloc() family of functions, and will be freed in
avcodec_free_context().
- encoding: Set/allocated by user, freed by libavcodec. Can be NULL.
- decoding: Set/allocated/freed by libavcodec.
custom intra quantization matrix Must be allocated with the av_malloc() family of functions, and will be freed in avcodec_free_context(). - encoding: Set/allocated by user, freed by libavcodec. Can be NULL. - decoding: Set/allocated/freed by libavcodec.