autocorr_max      681 libavcodec/g723_1.c     int fwd_lag   = autocorr_max(buf, offset, &energy[1], pitch_lag,
autocorr_max      683 libavcodec/g723_1.c     int back_lag  = autocorr_max(buf, offset, &energy[3], pitch_lag,
autocorr_max      761 libavcodec/g723_1.c     index = autocorr_max(buf, offset, &ccr, pitch_lag, SUBFRAME_LEN * 2, -1);