ff_brktimegm      146 libavformat/dvenc.c         ff_brktimegm(ct, &tc);
ff_brktimegm      162 libavformat/dvenc.c         ff_brktimegm(ct, &tc);
ff_brktimegm      211 libavformat/internal.h struct tm *ff_brktimegm(time_t secs, struct tm *tm);