317         int offset, beta, lag;  in gen_fcb_excitation()  local
327         lag  = pitch_contrib[subfrm->ad_cb_gain << 1] + pitch_lag +  in gen_fcb_excitation()
331         if (lag < SUBFRAME_LEN - 2) {  in gen_fcb_excitation()
332             for (i = lag; i < SUBFRAME_LEN; i++)  in gen_fcb_excitation()
333                 vector[i] += beta * vector[i - lag] >> 15;  in gen_fcb_excitation()
351     int limit, ccr, lag = 0;  in autocorr_max()  local
365             lag = i;  in autocorr_max()
368     return lag;  in autocorr_max()
381 static void comp_ppf_gains(int lag, PPFParam *ppf, enum Rate cur_rate,  in comp_ppf_gains()  argument
387     ppf->index = lag;  in comp_ppf_gains()
560 static void residual_interp(int16_t *buf, int16_t *out, int lag,  in residual_interp()  argument
564     if (lag) { /* Voiced */  in residual_interp()
567         for (i = 0; i < lag; i++)  in residual_interp()
568             out[i] = vector_ptr[i - lag] * 3 >> 2;  in residual_interp()
569         av_memcpy_backptr((uint8_t*)(out + lag), lag * sizeof(*out),  in residual_interp()
570                           (FRAME_LEN - lag) * sizeof(*out));  in residual_interp()