avconv.c:4716: error: Null Dereference
  pointer `today` last assigned on line 4714 could be null and is dereferenced at line 4716, column 69.

avconv.c:4710:1: start of procedure opt_vstats()
4708. }
4709. 
4710. static int opt_vstats(const char *opt, const char *arg)
      ^
4711. {
4712.     char filename[40];

avconv.c:4713:5: 
4711. {
4712.     char filename[40];
4713.     time_t today2 = time(NULL);
          ^
4714.     struct tm *today = localtime(&today2);
4715. 

avconv.c:4714:5: 
4712.     char filename[40];
4713.     time_t today2 = time(NULL);
4714.     struct tm *today = localtime(&today2);
          ^
4715. 
4716.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,

avconv.c:4716:5: 
4714.     struct tm *today = localtime(&today2);
4715. 
4716.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
          ^
4717.              today->tm_sec);
4718.     return opt_vstats_file(opt, filename);
