libavcodec/wavpack.c:231: error: Uninitialized Value
  The value read from br[_] was never initialized.

libavcodec/wavpack.c:231:38: 
229.                 ctx->ch[i].error_limit = 0;
230.         }else{
231.             ctx->ch[i].error_limit = wp_exp2(br[i]);
                                          ^
232.         }
233.     }
