ffmpeg.c:4215: error: Null Dereference
  pointer `today` last assigned on line 4213 could be null and is dereferenced at line 4215, column 69.

ffmpeg.c:4209:1: start of procedure opt_vstats()
4207. }
4208. 
4209. static int opt_vstats(const char *opt, const char *arg)
      ^
4210. {
4211.     char filename[40];

ffmpeg.c:4212:5: 
4210. {
4211.     char filename[40];
4212.     time_t today2 = time(NULL);
          ^
4213.     struct tm *today = localtime(&today2);
4214. 

ffmpeg.c:4213:5: 
4211.     char filename[40];
4212.     time_t today2 = time(NULL);
4213.     struct tm *today = localtime(&today2);
          ^
4214. 
4215.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,

ffmpeg.c:4215:5: 
4213.     struct tm *today = localtime(&today2);
4214. 
4215.     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
          ^
4216.              today->tm_sec);
4217.     return opt_vstats_file(opt, filename);
