119   priv_t * f = (priv_t *) effp->priv;  in start()  local
128   f->in_gain = 1 / (1 + f->delay_gain);  in start()
129   f->delay_gain  /= 1 + f->delay_gain;  in start()
132   f->delay_gain *= 1 - fabs(f->feedback_gain);  in start()
135       f->in_gain, f->feedback_gain, f->delay_gain);  in start()
138   f->delay_buf_length =  in start()
139     (f->delay_min + f->delay_depth) * effp->in_signal.rate + 0.5;  in start()
140   ++f->delay_buf_length;  /* Need 0 to n, i.e. n + 1. */  in start()
141   ++f->delay_buf_length;  /* Quadratic interpolator needs one more. */  in start()
143     f->delay_bufs[c] = lsx_calloc(f->delay_buf_length, sizeof(*f->delay_bufs[0]));  in start()
146   f->lfo_length = effp->in_signal.rate / f->speed;  in start()
147   f->lfo = lsx_calloc(f->lfo_length, sizeof(*f->lfo));  in start()
149       f->wave_shape,  in start()
151       f->lfo,  in start()
152       f->lfo_length,  in start()
153       floor(f->delay_min * effp->in_signal.rate + .5),  in start()
154       f->delay_buf_length - 2.,  in start()
158       f->delay_buf_length, f->lfo_length);  in start()
168   priv_t * f = (priv_t *) effp->priv;  in flow()  local
175     f->delay_buf_pos =  in flow()
176       (f->delay_buf_pos + f->delay_buf_length - 1) % f->delay_buf_length;  in flow()
181       size_t channel_phase = c * f->lfo_length * f->channel_phase + .5;  in flow()
182       double delay = f->lfo[(f->lfo_pos + channel_phase) % f->lfo_length];  in flow()
187       f->delay_bufs[c][f->delay_buf_pos] = in + f->delay_last[c] * f->feedback_gain;  in flow()
189       delayed_0 = f->delay_bufs[c]  in flow()
190         [(f->delay_buf_pos + int_delay++) % f->delay_buf_length];  in flow()
191       delayed_1 = f->delay_bufs[c]  in flow()
192         [(f->delay_buf_pos + int_delay++) % f->delay_buf_length];  in flow()
194       if (f->interpolation == INTERP_LINEAR)  in flow()
199         double delayed_2 = f->delay_bufs[c]  in flow()
200           [(f->delay_buf_pos + int_delay++) % f->delay_buf_length];  in flow()
208       f->delay_last[c] = delayed;  in flow()
209       out = in * f->in_gain + delayed * f->delay_gain;  in flow()
212     f->lfo_pos = (f->lfo_pos + 1) % f->lfo_length;  in flow()
222   priv_t * f = (priv_t *) effp->priv;  in stop()  local
226     free(f->delay_bufs[c]);  in stop()
228   free(f->lfo);  in stop()
230   memset(f, 0, sizeof(*f));  in stop()