/* This code is placed in the public domain. */ #include <stdlib.h>#include <string.h>#include "soundpipe.h" int sp_tblrec_create(sp_tblrec **p){    *p = malloc(sizeof(sp_tblrec));    return SP_OK;} int sp_tblrec_destroy(sp_tblrec **p){    free(*p);    return SP_OK;} int sp_tblrec_init(sp_data *sp, sp_tblrec *p, sp_ftbl *ft){    USED(sp);     p->index = 0;    p->record = 0;    p->ft = ft;    return SP_OK;} int sp_tblrec_compute(sp_data *sp, sp_tblrec *p, SPFLOAT *in, SPFLOAT *trig, SPFLOAT *out){    USED(sp);     if(*trig != 0) {        if(p->record == 1) {            p->record = 0;        } else {            p->record = 1;            p->index = 0;            memset(p->ft->tbl, 0, sizeof(SPFLOAT) * p->ft->size);        }    }     if(p->record) {        p->ft->tbl[p->index] = *in;        p->index = (p->index + 1) % p->ft->size;    }     *out = *in;    return SP_OK;}