PeerStreamer

    static const uint8_t left_block_options[4][8]={

        {0,1,2,3,7,10,8,11},

        {2,2,3,3,8,11,8,11},

        {0,0,1,1,7,10,7,10},

        {0,2,0,2,7,10,7,10}

        h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][4];

        h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][5];

        h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][6];

        h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3];

        h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][9];

        h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8];

        h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][12];

        h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11];

            h->non_zero_count_cache[3+8*1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[0+2*i]];

            h->non_zero_count_cache[3+8*2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[1+2*i]];

            h->non_zero_count_cache[0+8*1 +   8*i]= h->non_zero_count[left_xy[i]][left_block[4+2*i]];

            h->non_zero_count_cache[0+8*4 +   8*i]= h->non_zero_count[left_xy[i]][left_block[5+2*i]];

    h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[7+8*1];

    h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[7+8*2];

    h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[7+8*3];

    h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4];

    h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[4+8*4];

    h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[5+8*4];

    h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[6+8*4];

    h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[1+8*2];

    h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2];

    h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[2+8*1];

    h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[1+8*5];

    h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5];

    h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[2+8*4];

    //FIXME sort better how things are stored in non_zero_count

    h->non_zero_count[mb_xy][13]= h->non_zero_count_cache[6+8*1];

    h->non_zero_count[mb_xy][14]= h->non_zero_count_cache[6+8*2];

    h->non_zero_count[mb_xy][15]= h->non_zero_count_cache[6+8*3];

    h->non_zero_count[mb_xy][16]= h->non_zero_count_cache[5+8*1];

    h->non_zero_count[mb_xy][17]= h->non_zero_count_cache[5+8*2];

    h->non_zero_count[mb_xy][18]= h->non_zero_count_cache[5+8*3];

    h->non_zero_count[mb_xy][19]= h->non_zero_count_cache[4+8*1];

    h->non_zero_count[mb_xy][20]= h->non_zero_count_cache[4+8*2];

    h->non_zero_count[mb_xy][21]= h->non_zero_count_cache[4+8*3];

    h->non_zero_count[mb_xy][22]= h->non_zero_count_cache[1+8*1];

    h->non_zero_count[mb_xy][23]= h->non_zero_count_cache[1+8*4];

        static const int nnz_idx[4] = {4,5,6,3};

                        mbn_nnz[nnz_idx[i]] != 0 )

    h->non_zero_count_cache[7+8*1]=h->non_zero_count[mb_xy][0];

    h->non_zero_count_cache[7+8*2]=h->non_zero_count[mb_xy][1];

    h->non_zero_count_cache[7+8*3]=h->non_zero_count[mb_xy][2];

    h->non_zero_count_cache[7+8*4]=h->non_zero_count[mb_xy][3];

    h->non_zero_count_cache[4+8*4]=h->non_zero_count[mb_xy][4];

    h->non_zero_count_cache[5+8*4]=h->non_zero_count[mb_xy][5];

    h->non_zero_count_cache[6+8*4]=h->non_zero_count[mb_xy][6];

    h->non_zero_count_cache[1+8*2]=h->non_zero_count[mb_xy][9];

    h->non_zero_count_cache[2+8*2]=h->non_zero_count[mb_xy][8];

    h->non_zero_count_cache[2+8*1]=h->non_zero_count[mb_xy][7];

    h->non_zero_count_cache[1+8*5]=h->non_zero_count[mb_xy][12];

    h->non_zero_count_cache[2+8*5]=h->non_zero_count[mb_xy][11];

    h->non_zero_count_cache[2+8*4]=h->non_zero_count[mb_xy][10];

    h->non_zero_count_cache[6+8*1]=h->non_zero_count[mb_xy][13];

    h->non_zero_count_cache[6+8*2]=h->non_zero_count[mb_xy][14];

    h->non_zero_count_cache[6+8*3]=h->non_zero_count[mb_xy][15];

    h->non_zero_count_cache[5+8*1]=h->non_zero_count[mb_xy][16];

    h->non_zero_count_cache[5+8*2]=h->non_zero_count[mb_xy][17];

    h->non_zero_count_cache[5+8*3]=h->non_zero_count[mb_xy][18];

    h->non_zero_count_cache[4+8*1]=h->non_zero_count[mb_xy][19];

    h->non_zero_count_cache[4+8*2]=h->non_zero_count[mb_xy][20];

    h->non_zero_count_cache[4+8*3]=h->non_zero_count[mb_xy][21];

    h->non_zero_count_cache[1+8*1]=h->non_zero_count[mb_xy][22];

    h->non_zero_count_cache[1+8*4]=h->non_zero_count[mb_xy][23];

                            h->non_zero_count[mbn_xy][MB_FIELD ? i&3 : (i>>2)+(mb_y&1)*2]))