libavformat/sapenc.c:106: error: Uninitialized Value
  The value read from announce_addr[_] was never initialized.

libavformat/sapenc.c:106:10: 
104.     }
105. 
106.     if (!announce_addr[0]) {
              ^
107.         struct addrinfo hints = { 0 }, *ai = NULL;
108.         hints.ai_family = AF_UNSPEC;
