ff_brktimegm      151 libavformat/dvenc.c         ff_brktimegm(ct, &tc);
ff_brktimegm      167 libavformat/dvenc.c         ff_brktimegm(ct, &tc);
ff_brktimegm      117 libavformat/internal.h struct tm *ff_brktimegm(time_t secs, struct tm *tm);