PRESET_LIGHTER 85 libavfilter/vf_curves.c { "lighter", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_LIGHTER}, INT_MIN, INT_MAX, FLAGS, "preset_name" }, PRESET_LIGHTER 124 libavfilter/vf_curves.c [PRESET_LIGHTER] = { .master = "0.4/0.5" },