libavcodec/wmavoice.c:1098: error: Uninitialized Value
  The value read from pitch[_] was never initialized.

libavcodec/wmavoice.c:1098:13: 
1096. 
1097.         case ACB_TYPE_ASYMMETRIC: {
1098.             bl_pitch_sh2 = pitch[n] << 2;
                  ^
1099.             break;
1100.         }
