libavcodec/dsputil.c:3581: error: Uninitialized Value
  The value read from temp[_] was never initialized.

libavcodec/dsputil.c:3581:12: 
3579.     }
3580. 
3581.     sum -= FFABS(temp[8*0] + temp[8*4]); // -mean
                 ^
3582. 
3583.     return sum;
