UNIT_MS            75 libavfilter/af_apulsator.c     {   "ms",                   NULL, 0,                 AV_OPT_TYPE_CONST,  {.i64=UNIT_MS},   0,          0, FLAGS, "timing" },
UNIT_MS           210 libavfilter/af_apulsator.c     case UNIT_MS:   freq = 1 / (s->ms / 1000.); break;