dump_attachment   118 ffmpeg.h           SpecifierOpt *dump_attachment;
dump_attachment  1002 ffmpeg_opt.c               if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
dump_attachment  1003 ffmpeg_opt.c                   dump_attachment(st, o->dump_attachment[i].u.str);
dump_attachment  2951 ffmpeg_opt.c                            OPT_EXPERT | OPT_INPUT,                     { .off = OFFSET(dump_attachment) },