libavformat/nutdec.c:532: error: Uninitialized Value
  The value read from *event_flags was never initialized.

libavformat/nutdec.c:532:17: 
530.             if (metadata && av_strcasecmp(name, "Uses") &&
531.                 av_strcasecmp(name, "Depends") && av_strcasecmp(name, "Replaces")) {
532.                 *event_flags |= metadata_flag;
                     ^
533.                 av_dict_set(metadata, name, str_value, 0);
534.             }
