libavcodec/xl.c:92: error: Uninitialized Value
  The value read from c0 was never initialized.

libavcodec/xl.c:92:17: 
90.                 c0 = (val & 0x1F) << 2;
91.             else
92.                 c0 += xl_table[val & 0x1F];
                    ^
93.             val >>= 5;
94.             if(!j)
