avconv.c:4715: error: Null Dereference
  pointer `today` last assigned on line 4713 could be null and is dereferenced at line 4715, column 69.

avconv.c:4709:1: start of procedure opt_vstats()
4707. }
4708. 
4709. static int opt_vstats(const char *opt, const char *arg)
      ^
4710. {
4711.     char filename[40];

avconv.c:4712:5: 
4710. {
4711.     char filename[40];
4712.     time_t today2 = time(NULL);
          ^
4713.     struct tm *today = localtime(&today2);
4714. 

avconv.c:4713:5: 
4711.     char filename[40];
4712.     time_t today2 = time(NULL);
4713.     struct tm *today = localtime(&today2);
          ^
4714. 
4715.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,

avconv.c:4715:5: 
4713.     struct tm *today = localtime(&today2);
4714. 
4715.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
          ^
4716.              today->tm_sec);
4717.     return opt_vstats_file(opt, filename);
