libavcodec/opus_silk.c:826: error: Uninitialized Value
  The value read from k was never initialized.

libavcodec/opus_silk.c:826:29: 
824. 
825.             /* upper extent */
826.             for (i = order; i > k; i--)
                                 ^
827.                 max_center -= min_delta[k];
828.             max_center -= min_delta[k] >> 1;
