VERTOPEN          171 libavfilter/vf_xfade.c     {   "vertopen",   "vert open transition",   0, AV_OPT_TYPE_CONST, {.i64=VERTOPEN},   0, 0, FLAGS, "transition" },
VERTOPEN         1414 libavfilter/vf_xfade.c     case VERTOPEN:   s->transitionf = s->depth <= 8 ? vertopen8_transition   : vertopen16_transition;   break;