DIFF_MODE_RECTANGLE  120 libavfilter/vf_paletteuse.c         { "rectangle", "process smallest different rectangle", 0, AV_OPT_TYPE_CONST, {.i64=DIFF_MODE_RECTANGLE}, INT_MIN, INT_MAX, FLAGS, "diff_mode" },
DIFF_MODE_RECTANGLE  817 libavfilter/vf_paletteuse.c     if (prv_src->data[0] && diff_mode == DIFF_MODE_RECTANGLE) {