libavutil/des.c:270: error: Uninitialized Value
  The value read from K[_] was never initialized.

libavutil/des.c:270:17: 
268.     for (i = 0; i < 16; i++) {
269.         uint32_t f_res;
270.         f_res = f_func(in, K[decrypt ^ i]);
                     ^
271.         in = (in << 32) | (in >> 32);
272.         in ^= f_res;
