Function lame_encode_buffer_int 

pub unsafe extern "C" fn lame_encode_buffer_int(
    gfp: *mut lame_global_flags,
    buffer_l: *mut c_int,
    buffer_r: *mut c_int,
    nsamples: c_int,
    mp3buf: *mut c_uchar,
    mp3buf_size: c_int,
) -> c_int