RADIAL            164 libavfilter/vf_xfade.c     {   "radial",     "radial transition",      0, AV_OPT_TYPE_CONST, {.i64=RADIAL},     0, 0, FLAGS, "transition" },
RADIAL           1407 libavfilter/vf_xfade.c     case RADIAL:     s->transitionf = s->depth <= 8 ? radial8_transition     : radial16_transition;     break;