PRESET_COLOR_NEGATIVE   81 libavfilter/vf_curves.c         { "color_negative",     NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_COLOR_NEGATIVE},       INT_MIN, INT_MAX, FLAGS, "preset_name" },
PRESET_COLOR_NEGATIVE  112 libavfilter/vf_curves.c     [PRESET_COLOR_NEGATIVE] = {