/* This code is placed in the public domain. */ #include <stdlib.h>#include "soundpipe.h" int sp_timer_create(sp_timer **p){    *p = malloc(sizeof(sp_timer));    return SP_OK;} int sp_timer_destroy(sp_timer **p){    free(*p);    return SP_OK;} int sp_timer_init(sp_data *sp, sp_timer *p){    USED(sp);     p->mode = 0;    p->pos = 0;    p->time = 0;    return SP_OK;} int sp_timer_compute(sp_data *sp, sp_timer *p, SPFLOAT *in, SPFLOAT *out){    if(*in != 0) {        if(p->mode == 0) {            p->pos = 0;            p->mode = 1;        } else if(p->mode == 1) {            p->time = (SPFLOAT) p->pos / sp->sr;            p->mode = 0;        }    }     if(p->mode == 1) {        p->pos++;    }     *out = p->time;    return SP_OK;}