libavcodec/webp.c:259: error: Uninitialized Value
  The value read from re_size_plus8 was never initialized.

libavcodec/webp.c:259:5: 
257.         n     = table[index][1];
258.     }
259.     SKIP_BITS(re, gb, n);
         ^
260. 
261.     CLOSE_READER(re, gb);
