libavformat/mxfenc.c:1381: error: Null Dereference
  pointer `time_is_forbidden_due_to_security_issues` last assigned on line 1380 could be null and is dereferenced at line 1381, column 23.

libavformat/mxfenc.c:1378:1: start of procedure mxf_parse_timestamp()
1376. }
1377. 
1378. static uint64_t mxf_parse_timestamp(time_t timestamp)
      ^
1379. {
1380.     struct tm *time = gmtime(&timestamp);

libavformat/mxfenc.c:1380:5: 
1378. static uint64_t mxf_parse_timestamp(time_t timestamp)
1379. {
1380.     struct tm *time = gmtime(&timestamp);
          ^
1381.     return (uint64_t)(time->tm_year+1900) << 48 |
1382.            (uint64_t)(time->tm_mon+1)     << 40 |

libavformat/mxfenc.c:1381:5: 
1379. {
1380.     struct tm *time = gmtime(&timestamp);
1381.     return (uint64_t)(time->tm_year+1900) << 48 |
          ^
1382.            (uint64_t)(time->tm_mon+1)     << 40 |
1383.            (uint64_t) time->tm_mday       << 32 |
