libavcodec/qdm2.c:1630: error: Uninitialized Value
  The value read from samples[_] was never initialized.

libavcodec/qdm2.c:1630:13: 
1628.     for (ch = 0; ch < q->channels; ch++)
1629.         for (i = 0; i < q->frame_size; i++)
1630.             q->output_buffer[q->channels * i + ch] += (1 << 23) * samples[q->nb_channels * sub_sampling * i + ch];
                  ^
1631. }
1632. 
