MEASURE_ZERO_CROSSINGS_RATE  135 libavfilter/af_astats.c       { "Zero_crossings_rate"       , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_ZERO_CROSSINGS_RATE }, 0, 0, FLAGS, "measure" },
MEASURE_ZERO_CROSSINGS_RATE  501 libavfilter/af_astats.c         if (s->measure_perchannel & MEASURE_ZERO_CROSSINGS_RATE)
MEASURE_ZERO_CROSSINGS_RATE  750 libavfilter/af_astats.c         if (s->measure_perchannel & MEASURE_ZERO_CROSSINGS_RATE)