libavcodec/vorbis_dec.c:1526: error: Uninitialized Value
  The value read from res_chan[_] was never initialized.

libavcodec/vorbis_dec.c:1526:9: 
1524.     for(j=vc->audio_channels-1;j>=0;j--) {
1525.         ch_floor_ptr=vc->channel_floors+j*blocksize/2;
1526.         ch_res_ptr=vc->channel_residues+res_chan[j]*blocksize/2;
              ^
1527.         vc->dsp.vector_fmul(ch_floor_ptr, ch_res_ptr, blocksize/2);
1528.         ff_imdct_half(&vc->mdct[blockflag], ch_res_ptr, ch_floor_ptr);
