src/main/java/org/jcodec/codecs/h264/decode/BlockInterpolator.java
void getLuma11Unsafe(byte[] pic, int picW, int imgH, byte[] blk, int blkOff, int blkStride, int x, int y,
            int blkW, int blkH) {
        getLuma20Unsafe(pic, picW, imgH, blk, blkOff, blkStride, x, y, blkW, blkH);
        getLuma02Unsafe(pic, picW, imgH, tmp3, 0, blkW, x, y, blkW, blkH);

        merge(blk, tmp3, blkOff, blkStride, blkW, blkH);
    }
void getLuma11Unsafe(byte[] pic, int picW, int imgH, byte[] blk, int blkOff, int blkStride, int x, int y,
            int blkW, int blkH) {
        getLuma20Unsafe(pic, picW, imgH, blk, blkOff, blkStride, x, y, blkW, blkH);
        getLuma02Unsafe(pic, picW, imgH, tmp3, 0, blkW, x, y, blkW, blkH);

        merge(blk, tmp3, blkOff, blkStride, blkW, blkH);
    }
void getLuma11Unsafe ( byte [ ] pic , int picW , int imgH , byte [ ] blk , int blkOff , int blkStride , int x , int y , int blkW , int blkH ) { getLuma20Unsafe ( pic , picW , imgH , blk , blkOff , blkStride , x , y , blkW , blkH ) ; getLuma02Unsafe ( pic , picW , imgH , tmp3 , 0 , blkW , x , y , blkW , blkH ) ; merge ( blk , tmp3 , blkOff , blkStride , blkW , blkH ) ; }
Qpel (1, 1) unsafe
Qpel ( 1 1 ) unsafe