pub unsafe extern "C" fn sperr_comp_3d(
src: *const c_void,
is_float: c_int,
dimx: usize,
dimy: usize,
dimz: usize,
chunk_x: usize,
chunk_y: usize,
chunk_z: usize,
mode: c_int,
quality: f64,
nthreads: usize,
dst: *mut *mut c_void,
dst_len: *mut usize,
) -> c_int