STATS_MODE_DIFF_FRAMES   84 libavfilter/vf_palettegen.c         { "diff", "compute histograms only for the part that differs from previous frame", 0, AV_OPT_TYPE_CONST, {.i64=STATS_MODE_DIFF_FRAMES}, INT_MIN, INT_MAX, FLAGS, "mode" },
STATS_MODE_DIFF_FRAMES  486 libavfilter/vf_palettegen.c     if (s->stats_mode == STATS_MODE_DIFF_FRAMES) {