libavcodec/h264pred.c:828: error: Uninitialized Value
  The value read from t7 was never initialized.

libavcodec/h264pred.c:828:5: 
826.     src[5] = t5;
827.     src[6] = t6;
828.     src[7] = t7;
         ^
829.     for( y = 1; y < 8; y++ )
830.         *(uint64_t*)(src+y*stride) = *(uint64_t*)src;
