libavcodec/wavpack.c:212: error: Uninitialized Value
  The value read from br[_] was never initialized.

libavcodec/wavpack.c:212:9: 
210.     }
211.     if(ctx->stereo_in && ctx->hybrid_bitrate){
212.         int balance = (sl[1] - sl[0] + br[1] + 1) >> 1;
             ^
213.         if(balance > br[0]){
214.             br[1] = br[0] << 1;
