libavformat/wavdec.c:154: error: Uninitialized Value
  The value read from umid_parts[_] was never initialized.

libavformat/wavdec.c:154:17: 
152.                 umid_parts[6] == 0 && umid_parts[7] == 0) {
153.                 /* basic UMID */
154.                 snprintf(temp, sizeof(temp),
                     ^
155.                          "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
156.                          umid_parts[0], umid_parts[1],
