libavcodec/dca_xll.c:401: error: Uninitialized Value
  The value read from c[_] was never initialized.

libavcodec/dca_xll.c:401:13: 
399.     for (i = order; i < nsamples; i++) {
400.         for (j = s = 0; j < order; j++)
401.             s += (int64_t) c[j] * samples[i - 1 - j];
                 ^
402. 
403.         /* NOTE: Equations seem to imply addition, while the
