ref: ad283e1403a93be876d71ffcc7ff76152c92d453
dir: /h/wavout.h/
typedef struct sp_wavout sp_wavout; int sp_wavout_create(sp_wavout **p); int sp_wavout_destroy(sp_wavout **p); int sp_wavout_init(sp_data *sp, sp_wavout *p, const char *filename); int sp_wavout_compute(sp_data *sp, sp_wavout *p, SPFLOAT *in, SPFLOAT *out);