libavcodec/dca_xll.c:394: error: Uninitialized Value
  The value read from c[_] was never initialized.

libavcodec/dca_xll.c:394:17: 
392.                 s += (int64_t) c[j] * samples[i - 1 - j];
393.             for (; j < order; j++)
394.                 s += (int64_t) c[j] * prev[DCA_XLL_AORDER_MAX + i - 1 - j];
                     ^
395. 
396.             samples[i] -= av_clip((s + 0x8000) >> 16, -0x1000000, 0xffffff);
