libavcodec/h264.c:1490: error: Uninitialized Value
  The value read from temp[_] was never initialized.

libavcodec/h264.c:1490:9: 
1488.         const int z1= temp[4*0+i] - temp[4*2+i];
1489.         const int z2= temp[4*1+i] - temp[4*3+i];
1490.         const int z3= temp[4*1+i] + temp[4*3+i];
              ^
1491. 
1492.         block[stride*0 +offset]= ((((z0 + z3)*qmul + 128 ) >> 8)); //FIXME think about merging this into decode_resdual
