UNIT_HZ            76 libavfilter/af_apulsator.c     {   "hz",                   NULL, 0,                 AV_OPT_TYPE_CONST,  {.i64=UNIT_HZ},   0,          0, FLAGS, "timing" },
UNIT_HZ           211 libavfilter/af_apulsator.c     case UNIT_HZ:   freq = s->hertz;            break;