TERRAIN           132 libavfilter/avf_showspectrum.c         { "terrain",   "terrain based coloring",          0, AV_OPT_TYPE_CONST, {.i64=TERRAIN},   0, 0, FLAGS, "color" },
TERRAIN           292 libavfilter/avf_showspectrum.c     [TERRAIN] = {
TERRAIN           530 libavfilter/avf_showspectrum.c         case TERRAIN:
TERRAIN          1566 libavfilter/avf_showspectrum.c         { "terrain",   "terrain based coloring",          0, AV_OPT_TYPE_CONST, {.i64=TERRAIN},   0, 0, FLAGS, "color" },