libavcodec/dca_xll.c:378: error: Uninitialized Value
  The value read from c[_] was never initialized.

libavcodec/dca_xll.c:378:13: 
376.          * ... */
377.         if (i & 1)
378.             c[i / 2] += ((int64_t) c[i] * c[i / 2] + 0x8000) >> 16;
                 ^
379.         for (j = 0; j < i / 2; j++) {
380.             int r0 = c[j];
