parse_meta_type   623 fftools/ffmpeg_opt.c     parse_meta_type(inspec,  &type_in,  &idx_in,  &istream_spec);
parse_meta_type   624 fftools/ffmpeg_opt.c     parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
parse_meta_type  2719 fftools/ffmpeg_opt.c         parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);