Function ippiCompColorKey_16u_C4R 

pub unsafe extern "C" fn ippiCompColorKey_16u_C4R(
    pSrc1: *const u16,
    src1Step: i32,
    pSrc2: *const u16,
    src2Step: i32,
    pDst: *mut u16,
    dstStep: i32,
    roiSize: IppiSize,
    colorKey: *mut u16,
) -> i32