avconv.c:4755: error: Null Dereference
  pointer `today` last assigned on line 4753 could be null and is dereferenced at line 4755, column 69.

avconv.c:4749:1: start of procedure opt_vstats()
4747. }
4748. 
4749. static int opt_vstats(const char *opt, const char *arg)
      ^
4750. {
4751.     char filename[40];

avconv.c:4752:5: 
4750. {
4751.     char filename[40];
4752.     time_t today2 = time(NULL);
          ^
4753.     struct tm *today = localtime(&today2);
4754. 

avconv.c:4753:5: 
4751.     char filename[40];
4752.     time_t today2 = time(NULL);
4753.     struct tm *today = localtime(&today2);
          ^
4754. 
4755.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,

avconv.c:4755:5: 
4753.     struct tm *today = localtime(&today2);
4754. 
4755.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
          ^
4756.              today->tm_sec);
4757.     return opt_vstats_file(opt, filename);
