95         int i;  in sox_chorus_getopts()  local
99         i = 0;  in sox_chorus_getopts()
104         sscanf(argv[i++], "%f", &chorus->in_gain);  in sox_chorus_getopts()
105         sscanf(argv[i++], "%f", &chorus->out_gain);  in sox_chorus_getopts()
106         while ( i < argc ) {  in sox_chorus_getopts()
112                 sscanf(argv[i++], "%f", &chorus->delay[chorus->num_chorus]);  in sox_chorus_getopts()
113                 sscanf(argv[i++], "%f", &chorus->decay[chorus->num_chorus]);  in sox_chorus_getopts()
114                 sscanf(argv[i++], "%f", &chorus->speed[chorus->num_chorus]);  in sox_chorus_getopts()
115                 sscanf(argv[i++], "%f", &chorus->depth[chorus->num_chorus]);  in sox_chorus_getopts()
116                 if ( !strcmp(argv[i], "-s"))  in sox_chorus_getopts()
118                 else if ( ! strcmp(argv[i], "-t"))  in sox_chorus_getopts()
122                 i++;  in sox_chorus_getopts()
134         int i;  in sox_chorus_start()  local
154         for ( i = 0; i < chorus->num_chorus; i++ ) {  in sox_chorus_start()
155                 chorus->samples[i] = (int) ( ( chorus->delay[i] +  in sox_chorus_start()
156                         chorus->depth[i] ) * effp->in_signal.rate / 1000.0);  in sox_chorus_start()
157                 chorus->depth_samples[i] = (int) (chorus->depth[i] *  in sox_chorus_start()
160                 if ( chorus->delay[i] < 20.0 )  in sox_chorus_start()
165                 if ( chorus->delay[i] > 100.0 )  in sox_chorus_start()
170                 if ( chorus->speed[i] < 0.1 )  in sox_chorus_start()
175                 if ( chorus->speed[i] > 5.0 )  in sox_chorus_start()
180                 if ( chorus->depth[i] < 0.0 )  in sox_chorus_start()
185                 if ( chorus->depth[i] > 10.0 )  in sox_chorus_start()
190                 if ( chorus->decay[i] < 0.0 )  in sox_chorus_start()
195                 if ( chorus->decay[i] > 1.0 )  in sox_chorus_start()
200                 chorus->length[i] = effp->in_signal.rate / chorus->speed[i];  in sox_chorus_start()
201                 chorus->lookup_tab[i] = lsx_malloc(sizeof (int) * chorus->length[i]);  in sox_chorus_start()
203                 if (chorus->modulation[i] == MOD_SINE)  in sox_chorus_start()
204                   lsx_generate_wave_table(SOX_WAVE_SINE, SOX_INT, chorus->lookup_tab[i],  in sox_chorus_start()
205 …                              (size_t)chorus->length[i], 0., (double)chorus->depth_samples[i], 0.);  in sox_chorus_start()
207                   lsx_generate_wave_table(SOX_WAVE_TRIANGLE, SOX_INT, chorus->lookup_tab[i],  in sox_chorus_start()
208                                          (size_t)chorus->length[i],  in sox_chorus_start()
209 …                                   (double)(chorus->samples[i] - 1 - 2 * chorus->depth_samples[i]),  in sox_chorus_start()
210                                          (double)(chorus->samples[i] - 1), 3 * M_PI_2);  in sox_chorus_start()
211                 chorus->phase[i] = 0;  in sox_chorus_start()
213                 if ( chorus->samples[i] > chorus->maxsamples )  in sox_chorus_start()
214                   chorus->maxsamples = chorus->samples[i];  in sox_chorus_start()
219         for ( i = 0; i < chorus->num_chorus; i++ )  in sox_chorus_start()
220                 sum_in_volume += chorus->decay[i];  in sox_chorus_start()
226         for ( i = 0; i < chorus->maxsamples; i++ )  in sox_chorus_start()
227                 chorus->chorusbuf[i] = 0.0;  in sox_chorus_start()
245         int i;  in sox_chorus_flow()  local
256                 for ( i = 0; i < chorus->num_chorus; i++ )  in sox_chorus_flow()
258                         chorus->counter - chorus->lookup_tab[i][chorus->phase[i]]) %  in sox_chorus_flow()
259                         chorus->maxsamples] * chorus->decay[i];  in sox_chorus_flow()
268                 for ( i = 0; i < chorus->num_chorus; i++ )  in sox_chorus_flow()
269                         chorus->phase[i]  =  in sox_chorus_flow()
270                                 ( chorus->phase[i] + 1 ) % chorus->length[i];  in sox_chorus_flow()
283         int i;  in sox_chorus_drain()  local
293                 for ( i = 0; i < chorus->num_chorus; i++ )  in sox_chorus_drain()
295                 chorus->counter - chorus->lookup_tab[i][chorus->phase[i]]) %  in sox_chorus_drain()
296                 chorus->maxsamples] * chorus->decay[i];  in sox_chorus_drain()
305                 for ( i = 0; i < chorus->num_chorus; i++ )  in sox_chorus_drain()
306                         chorus->phase[i]  =  in sox_chorus_drain()
307                                 ( chorus->phase[i] + 1 ) % chorus->length[i];  in sox_chorus_drain()
325         int i;  in sox_chorus_stop()  local
329         for ( i = 0; i < chorus->num_chorus; i++ ) {  in sox_chorus_stop()
330                 free(chorus->lookup_tab[i]);  in sox_chorus_stop()
331                 chorus->lookup_tab[i] = NULL;  in sox_chorus_stop()