racket-sound/libao/libao-async-ffi.rkt

#lang racket/base


(require ffi/unsafe
         ffi/unsafe/define
         "../utils/utils.rkt"
         "libao-ffi.rkt"
         )

(provide ao_create_async
         ao_stop_async
         ao_play_async
         ao_is_at_second_async
         ao_music_duration_async
         ao_bufsize_async
         ao_clear_async
         )

(define lib (get-lib '("ao-play-async" "libao-play-async") '(#f)))
(define-ffi-definer define-libao-async lib)

(define _libao-async-handle-pointer (_cpointer 'ao-async-handle))

;extern void *ao_create_async(void *ao_device, );
(define-libao-async ao_create_async(_fun _pointer _fpointer -> _libao-async-handle-pointer))

;extern void ao_stop_async(void *handle);
(define-libao-async ao_stop_async(_fun _libao-async-handle-pointer -> _void))

;extern void ao_play_async(void *handle, double at_second, double music_duration, int buf_size, void *mem);
(define-libao-async ao_play_async(_fun _libao-async-handle-pointer _double _double _uint32 _pointer -> _void))

;extern double ao_is_at_second_async(void *handle);
(define-libao-async ao_is_at_second_async(_fun _libao-async-handle-pointer -> _double))

;extern double ao_music_duration_async(void *handle);
(define-libao-async ao_music_duration_async(_fun _libao-async-handle-pointer -> _double))

;extern int ao_bufsize_async(void *handle);
(define-libao-async ao_bufsize_async(_fun _libao-async-handle-pointer -> _int))

;extern void ao_clear_async(void *handle);
(define-libao-async ao_clear_async(_fun _libao-async-handle-pointer -> _void))