ref: 3a3b446c59acabc34e39d73af846ecb37a8dff77
dir: /h/reverse.h/
typedef struct {
SPFLOAT delay;
uint32_t bufpos;
uint32_t bufsize;
SPFLOAT *buf;
} sp_reverse;
int sp_reverse_create(sp_reverse **p);
int sp_reverse_destroy(sp_reverse **p);
int sp_reverse_init(sp_data *sp, sp_reverse *p, SPFLOAT delay);
int sp_reverse_compute(sp_data *sp, sp_reverse *p, SPFLOAT *in, SPFLOAT *out);