libavcodec/wmaprodec.c:864: error: Uninitialized Value
  The value read from vals[_] was never initialized.

libavcodec/wmaprodec.c:864:17: 
862.             if (vals[i]) {
863.                 uint32_t sign = bitstream_read_bit(&s->bc) - 1;
864.                 AV_WN32A(&ci->coeffs[cur_coeff], vals[i] ^ sign << 31);
                     ^
865.                 num_zeros = 0;
866.             } else {
