Function mlt_sys::mlt_frame_get_audio

pub unsafe extern "C" fn mlt_frame_get_audio(
    self_: mlt_frame, 
    buffer: *mut *mut c_void, 
    format: *mut mlt_audio_format, 
    frequency: *mut c_int, 
    channels: *mut c_int, 
    samples: *mut c_int
) -> c_int