// Close closes the AudioFile and releases the reference to it.
//
// When used with ExtAudioFile this function must not be called while the ExtAudioFile is still in use.
func (af *AudioFile) Close() error {
if af.id == nil {
return nil
}
stat := C.AudioFileClose(af.id)
af.id = nil
runtime.SetFinalizer(af, nil)
return osStatus(stat)
}
func newOutputFile(target ReadWriterAt, asbd *C.AudioStreamBasicDescription, fileType C.AudioFileTypeID) (*AudioFile, error) {
af := AudioFile{
target: target,
}
stat := C.AudioFileInitializeWithCallbacks(unsafe.Pointer(&af), (*[0]byte)(C.go_audiofile_readproc), (*[0]byte)(C.go_audiofile_writeproc),
(*[0]byte)(C.go_audiofile_getsizeproc), nil, fileType, asbd, 0, &af.id)
if stat != 0 {
return nil, osStatus(stat)
}
runtime.SetFinalizer(&af, func(af *AudioFile) {
if af.id != nil {
C.AudioFileClose(af.id)
}
})
return &af, nil
}