@return 0 if the output buffer is a subset of the input, 1 if it is allocated and must be freed @deprecated Use dump_extradata, remove_extra or extract_extradata bitstream filters instead.
See Implementation
@return 0 if the output buffer is a subset of the input, 1 if it is allocated and must be freed @deprecated Use dump_extradata, remove_extra or extract_extradata bitstream filters instead.