CIRCLECROP        159 libavfilter/vf_xfade.c     {   "circlecrop", "circle crop transition", 0, AV_OPT_TYPE_CONST, {.i64=CIRCLECROP}, 0, 0, FLAGS, "transition" },
CIRCLECROP       1402 libavfilter/vf_xfade.c     case CIRCLECROP: s->transitionf = s->depth <= 8 ? circlecrop8_transition : circlecrop16_transition; break;