ffmpeg-2.8.5

git-svn-id: svn://kolibrios.org@6147 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavformat/cutils.c

@@ -0,0 +1,39 @@
+/*
+ * various simple utilities for libavformat
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/time_internal.h"
+#include "avformat.h"
+#include "internal.h"
+
+#define ISLEAP(y) (((y) % 4 == 0) && (((y) % 100) != 0 || ((y) % 400) == 0))
+#define LEAPS_COUNT(y) ((y)/4 - (y)/100 + (y)/400)
+
+/* This is our own gmtime_r. It differs from its POSIX counterpart in a
+   couple of places, though. */
+struct tm *ff_brktimegm(time_t secs, struct tm *tm)
+{
+    tm = gmtime_r(&secs, tm);
+
+    tm->tm_year += 1900; /* unlike gmtime_r we store complete year here */
+    tm->tm_mon  += 1;    /* unlike gmtime_r tm_mon is from 1 to 12 */
+
+    return tm;
+}