HORZOPEN          173 libavfilter/vf_xfade.c     {   "horzopen",   "horz open transition",   0, AV_OPT_TYPE_CONST, {.i64=HORZOPEN},   0, 0, FLAGS, "transition" },
HORZOPEN         1416 libavfilter/vf_xfade.c     case HORZOPEN:   s->transitionf = s->depth <= 8 ? horzopen8_transition   : horzopen16_transition;   break;