libavcodec/wavpack.c:261: error: Uninitialized Value
  The value read from br[_] was never initialized.

libavcodec/wavpack.c:261:13: 
259.             br[0] = 0;
260.         } else if (-balance > br[0]) {
261.             br[0] <<= 1;
                 ^
262.             br[1] = 0;
263.         } else {
