MODE_FCOUT         80 libavfilter/f_graphmonitor.c         { "frame_count_in",   NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_FCOUT},   0, 0, VF, "flags" },
MODE_FCOUT        224 libavfilter/f_graphmonitor.c     if (s->flags & MODE_FCOUT) {