Function ippiFilterSobelGetBufferSize 

pub unsafe extern "C" fn ippiFilterSobelGetBufferSize(
    dstRoiSize: IppiSize,
    mask: u32,
    normType: u32,
    srcDataType: i32,
    dstDataType: i32,
    numChannels: i32,
    pBufferSize: *mut i32,
) -> i32