avconv.c:4348: error: Null Dereference
  pointer `today` last assigned on line 4346 could be null and is dereferenced at line 4348, column 69.

avconv.c:4342:1: start of procedure opt_vstats()
4340. }
4341. 
4342. static int opt_vstats(const char *opt, const char *arg)
      ^
4343. {
4344.     char filename[40];

avconv.c:4345:5: 
4343. {
4344.     char filename[40];
4345.     time_t today2 = time(NULL);
          ^
4346.     struct tm *today = localtime(&today2);
4347. 

avconv.c:4346:5: 
4344.     char filename[40];
4345.     time_t today2 = time(NULL);
4346.     struct tm *today = localtime(&today2);
          ^
4347. 
4348.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,

avconv.c:4348:5: 
4346.     struct tm *today = localtime(&today2);
4347. 
4348.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
          ^
4349.              today->tm_sec);
4350.     return opt_vstats_file(opt, filename);
