Core transform and quantization in JM

 

transform.c

t0 = p0 + p3;
t1 = p1 + p2;
t2 = p1 - p2;
t3 = p0 - p3;

*(pTmp++) =  t0 + t1;
*(pTmp++) = (t3 << 1) + t2;
*(pTmp++) =  t0 - t1;   
*(pTmp++) =  t3 - (t2 << 1);
2D要做兩次(水平和垂直各做一次)

<量化部份>
 

QP是自己設定的
其他就是查表囉