libavcodec/dsputil.c:2230: error: Uninitialized Value
  The value read from temp[_] was never initialized.

libavcodec/dsputil.c:2230:12: 
2228.     }
2229. 
2230.     sum -= FFABS(temp[8 * 0] + temp[8 * 4]); // -mean
                 ^
2231. 
2232.     return sum;
