/* This code is placed in the public domain. */ #include <stdlib.h>#include "soundpipe.h" int sp_random_create(sp_random **p){    *p = malloc(sizeof(sp_random));    return SP_OK;} int sp_random_destroy(sp_random **p){    free(*p);    return SP_OK;} int sp_random_init(sp_data *sp, sp_random *p){    USED(sp);     p->min = -1;    p->max = 1;    return SP_OK;} int sp_random_compute(sp_data *sp, sp_random *p, SPFLOAT *in, SPFLOAT *out){    USED(sp, in);     /* Send the signal's input to the output */    SPFLOAT rnd = ((sp_rand(sp) % RAND_MAX) / (RAND_MAX * 1.0));    rnd *= (p->max - p->min);    rnd += p->min;    *out = rnd;    return SP_OK;}