34 static int create(sox_effect_t * effp, int argc, char * * argv)  in create()  argument
36   priv_t * p = (priv_t *)effp->priv;  in create()
48       default: lsx_fail("invalid option `-%c'", *q); return lsx_usage(effp);  in create()
64   return argc? lsx_usage(effp) : SOX_SUCCESS;  in create()
67 static int start(sox_effect_t * effp)  in start()  argument
69   priv_t * p = (priv_t *)effp->priv;  in start()
71   if (effp->flow == 0) {  in start()
73       if (!effp->in_signal.mult || *effp->in_signal.mult >= 1) {  in start()
77       p->reclaim = 1 / *effp->in_signal.mult;  in start()
79     effp->out_signal.mult = p->make_headroom? &p->fixed_gain : NULL;  in start()
81       effp->flows = 1; /* essentially a conditional SOX_EFF_MCHAN */  in start()
96     effp->out_signal.precision = effp->in_signal.precision;  in start()
100 static int flow(sox_effect_t * effp, const sox_sample_t * ibuf,  in flow()  argument
103   priv_t * p = (priv_t *)effp->priv;  in flow()
113         double d = SOX_SAMPLE_TO_FLOAT_64BIT(*ibuf, effp->clips);  in flow()
119         double d = SOX_SAMPLE_TO_FLOAT_64BIT(*ibuf, effp->clips);  in flow()
132     double mult = ((priv_t *)(effp - effp->flow)->priv)->fixed_gain;  in flow()
135       *obuf++ = SOX_ROUND_CLIP_COUNT(*ibuf * mult, effp->clips);  in flow()
145 static void start_drain(sox_effect_t * effp)  in start_drain()  argument
147   priv_t * p = (priv_t *)effp->priv;  in start_drain()
152     for (i = 0; i < effp->flows; ++i) {  in start_drain()
153       priv_t * q = (priv_t *)(effp - effp->flow + i)->priv;  in start_drain()
157     for (i = 0; i < effp->flows; ++i) {  in start_drain()
158       priv_t * q = (priv_t *)(effp - effp->flow + i)->priv;  in start_drain()
166       for (i = 0; i < effp->flows; ++i) {  in start_drain()
167         priv_t * q = (priv_t *)(effp - effp->flow + i)->priv;  in start_drain()
171     for (i = 0; i < effp->flows; ++i) {  in start_drain()
172       priv_t * q = (priv_t *)(effp - effp->flow + i)->priv;  in start_drain()
178     for (i = 0; i < effp->flows; ++i) {  in start_drain()
179       priv_t * q = (priv_t *)(effp - effp->flow + i)->priv;  in start_drain()
194 static int drain(sox_effect_t * effp, sox_sample_t * obuf, size_t * osamp)  in drain()  argument
196   priv_t * p = (priv_t *)effp->priv;  in drain()
200   *osamp -= *osamp % effp->in_signal.channels;  in drain()
204       start_drain(effp);  in drain()
211       *obuf = SOX_ROUND_CLIP_COUNT(*obuf * p->mult, effp->clips);  in drain()
222 static int stop(sox_effect_t * effp)  in stop()  argument
224   priv_t * p = (priv_t *)effp->priv;  in stop()
255 static int norm_getopts(sox_effect_t * effp, int argc, char * * argv)  in norm_getopts()  argument
264   return argc? lsx_usage(effp) :  in norm_getopts()
265     lsx_gain_effect_fn()->getopts(effp, argc2, argv2);  in norm_getopts()