libavcodec/wmaprodec.c:622: error: Uninitialized Value
  The value read from rotation_offset[_] was never initialized.

libavcodec/wmaprodec.c:622:17: 
620.                 float v1 = chgroup->decorrelation_matrix[x * chgroup->num_channels + y];
621.                 float v2 = chgroup->decorrelation_matrix[i * chgroup->num_channels + y];
622.                 int n = rotation_offset[offset + x];
                     ^
623.                 float sinv;
624.                 float cosv;
