Function ippiFastNGetSize 

pub unsafe extern "C" fn ippiFastNGetSize(
    srcSize: IppiSize,
    circleRadius: c_int,
    N: c_int,
    orientationBins: c_int,
    option: c_int,
    dataType: Type,
    nChannels: c_int,
    pSpecSize: *mut c_int,
) -> IppStatus