40   priv_t *     vol = (priv_t *) effp->priv;  in getopts()  local
47   vol->gain = 1;               /* Default is no change. */  in getopts()
48   vol->uselimiter = sox_false; /* Default is no limiter. */  in getopts()
51 …if (!argc || (have_type = sscanf(argv[0], "%lf %10s %c", &vol->gain, type_string, &dummy) - 1) > 1)  in getopts()
67       case vol_dB: vol->gain = dB_to_linear(vol->gain); break;  in getopts()
69         vol->gain = vol->gain > 0 ? sqrt(vol->gain) : -sqrt(-vol->gain);  in getopts()
75 …if (fabs(vol->gain) < 1 || sscanf(*argv, "%lf %c", &vol->limitergain, &dummy) != 1 || vol->limiter…  in getopts()
78     vol->uselimiter = sox_true;  in getopts()
85 …vol->limiterthreshhold = SOX_SAMPLE_MAX * (1.0 - vol->limitergain) / (fabs(vol->gain) - vol->limit…  in getopts()
87   lsx_debug("mult=%g limit=%g", vol->gain, vol->limitergain);  in getopts()
96     priv_t * vol = (priv_t *) effp->priv;  in start()  local
98     if (vol->gain == 1)  in start()
101     vol->limited = 0;  in start()
102     vol->totalprocessed = 0;  in start()
113     priv_t * vol = (priv_t *) effp->priv;  in flow()  local
114     register double gain = vol->gain;  in flow()
115     register double limiterthreshhold = vol->limiterthreshhold;  in flow()
124     if (vol->uselimiter)  in flow()
126         vol->totalprocessed += len;  in flow()
134                         sample =  (SOX_SAMPLE_MAX - vol->limitergain * (SOX_SAMPLE_MAX - sample));  in flow()
135                         vol->limited++;  in flow()
139                         sample = -(SOX_SAMPLE_MAX - vol->limitergain * (SOX_SAMPLE_MAX + sample));  in flow()
147                         vol->limited++;  in flow()
170   priv_t * vol = (priv_t *) effp->priv;  in stop()  local
171   if (vol->limited) {  in stop()
173          vol->limited, (int) (vol->limited * 100.0 / vol->totalprocessed));  in stop()