libavcodec/wavpack.c:216: error: Uninitialized Value
  The value read from br[_] was never initialized.

libavcodec/wavpack.c:216:18: 
214.             br[1] = br[0] << 1;
215.             br[0] = 0;
216.         }else if(-balance > br[0]){
                      ^
217.             br[0] <<= 1;
218.             br[1] = 0;
