avconv_opt.c:1650: error: Null Dereference
  pointer `today` last assigned on line 1648 could be null and is dereferenced at line 1650, column 69.

avconv_opt.c:1644:1: start of procedure opt_vstats()
1642. }
1643. 
1644. static int opt_vstats(void *optctx, const char *opt, const char *arg)
      ^
1645. {
1646.     char filename[40];

avconv_opt.c:1647:5: 
1645. {
1646.     char filename[40];
1647.     time_t today2 = time(NULL);
          ^
1648.     struct tm *today = localtime(&today2);
1649. 

avconv_opt.c:1648:5: 
1646.     char filename[40];
1647.     time_t today2 = time(NULL);
1648.     struct tm *today = localtime(&today2);
          ^
1649. 
1650.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,

avconv_opt.c:1650:5: 
1648.     struct tm *today = localtime(&today2);
1649. 
1650.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
          ^
1651.              today->tm_sec);
1652.     return opt_vstats_file(NULL, opt, filename);
