libavcodec/vorbis_dec.c:1537: error: Uninitialized Value
  The value read from res_chan[_] was never initialized.

libavcodec/vorbis_dec.c:1537:9: 
1535.         uint_fast16_t bs0=vc->blocksize[0];
1536.         uint_fast16_t bs1=vc->blocksize[1];
1537.         float *residue=vc->channel_residues+res_chan[j]*blocksize/2;
              ^
1538.         float *saved=vc->saved+j*bs1/4;
1539.         float *ret=vc->channel_floors+j*retlen;
