/* This code is placed in the public domain. */ #include <stdlib.h>#include "soundpipe.h"#include "lib/dr_wav/sp_dr_wav.h" #define WAVOUT_BUFSIZE 1024 struct sp_wavout {    drwav *wav;    SPFLOAT buf[WAVOUT_BUFSIZE];    int count;}; int sp_wavout_create(sp_wavout **p){    *p = malloc(sizeof(sp_wavout));    return SP_OK;} int sp_wavout_destroy(sp_wavout **p){    /* write any remaining samples */    if ((*p)->count != 0) {        sp_drwav_write((*p)->wav, (*p)->count, (*p)->buf);    }    sp_drwav_close((*p)->wav);    free(*p);    return SP_OK;} int sp_wavout_init(sp_data *sp, sp_wavout *p, const char *filename){    p->count = 0;    p->wav = sp_drwav_open_mono_write(filename, sp->sr);    return SP_OK;} int sp_wavout_compute(sp_data *sp, sp_wavout *p, SPFLOAT *in, SPFLOAT *out){    USED(sp);     *out = *in;    if(p->count == WAVOUT_BUFSIZE) {        sp_drwav_write(p->wav, WAVOUT_BUFSIZE, p->buf);        p->count = 0;    }    p->buf[p->count] = *in;    p->count++;    return SP_OK;}