ffmpeg.c:3640: error: Null Dereference
  pointer `today` last assigned on line 3638 could be null and is dereferenced at line 3640, column 69.

ffmpeg.c:3634:1: start of procedure opt_vstats()
3632. }
3633. 
3634. static void opt_vstats (void)
      ^
3635. {
3636.     char filename[40];

ffmpeg.c:3637:5: 
3635. {
3636.     char filename[40];
3637.     time_t today2 = time(NULL);
          ^
3638.     struct tm *today = localtime(&today2);
3639. 

ffmpeg.c:3638:5: 
3636.     char filename[40];
3637.     time_t today2 = time(NULL);
3638.     struct tm *today = localtime(&today2);
          ^
3639. 
3640.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,

ffmpeg.c:3640:5: 
3638.     struct tm *today = localtime(&today2);
3639. 
3640.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
          ^
3641.              today->tm_sec);
3642.     opt_vstats_file(filename);
