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/libavformat/cutils.c

http://github.com/FFmpeg/FFmpeg
C | 39 lines | 12 code | 5 blank | 22 comment | 5 complexity | 714ece1bc751e444b43c1bf45bae55a7 MD5 | raw file
 1/*
 2 * various simple utilities for libavformat
 3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
 4 *
 5 * This file is part of FFmpeg.
 6 *
 7 * FFmpeg is free software; you can redistribute it and/or
 8 * modify it under the terms of the GNU Lesser General Public
 9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22#include "libavutil/time_internal.h"
23#include "avformat.h"
24#include "internal.h"
25
26#define ISLEAP(y) (((y) % 4 == 0) && (((y) % 100) != 0 || ((y) % 400) == 0))
27#define LEAPS_COUNT(y) ((y)/4 - (y)/100 + (y)/400)
28
29/* This is our own gmtime_r. It differs from its POSIX counterpart in a
30   couple of places, though. */
31struct tm *ff_brktimegm(time_t secs, struct tm *tm)
32{
33    tm = gmtime_r(&secs, tm);
34
35    tm->tm_year += 1900; /* unlike gmtime_r we store complete year here */
36    tm->tm_mon  += 1;    /* unlike gmtime_r tm_mon is from 1 to 12 */
37
38    return tm;
39}