libavcodec/atrac1.c:225: error: Uninitialized Value
  The value read from idwls[_] was never initialized.

libavcodec/atrac1.c:225:31: 
223. 
224.             int num_specs = specs_per_bfu[bfu_num];
225.             int word_len  = !!idwls[bfu_num] + idwls[bfu_num];
                                   ^
226.             float scale_factor = ff_atrac_sf_table[idsfs[bfu_num]];
227.             bits_used += word_len * num_specs; /* add number of bits consumed by current BFU */
