libavcodec/wmaprodec.c:834: error: Uninitialized Value
  The value read from vals[_] was never initialized.

libavcodec/wmaprodec.c:834:17: 
832.             if (vals[i]) {
833.                 int sign = get_bits1(&s->gb) - 1;
834.                 *(uint32_t*)&ci->coeffs[cur_coeff] = vals[i] ^ sign<<31;
                     ^
835.                 num_zeros = 0;
836.             } else {
