Function ipp_sys::ippiSub_8u_C4IRSfs

pub unsafe extern "C" fn ippiSub_8u_C4IRSfs(
    pSrc: *const u8, 
    srcStep: i32, 
    pSrcDst: *mut u8, 
    srcDstStep: i32, 
    roiSize: IppiSize, 
    scaleFactor: i32
) -> i32