kolibrios-fun/contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavutil/time.c
Sergey Semyonov (Serge) 08165419d8 ffmpeg: update
git-svn-id: svn://kolibrios.org@6605 a494cfbc-eb01-0410-851d-a64ba20cac60
2016-10-19 01:30:31 +00:00

82 lines
1.9 KiB
C

/*
* Copyright (c) 2000-2003 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
*/
#define _GNU_SOURCE
#include "config.h"
#include <stddef.h>
#include <stdint.h>
#include <time.h>
#if HAVE_GETTIMEOFDAY
#include <sys/time.h>
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_WINDOWS_H
#include <windows.h>
#endif
#include "time.h"
#include "error.h"
int64_t av_gettime(void)
{
#if HAVE_GETTIMEOFDAY
struct timeval tv;
gettimeofday(&tv, NULL);
return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
#elif HAVE_GETSYSTEMTIMEASFILETIME
FILETIME ft;
int64_t t;
GetSystemTimeAsFileTime(&ft);
t = (int64_t)ft.dwHighDateTime << 32 | ft.dwLowDateTime;
return t / 10 - 11644473600000000; /* Jan 1, 1601 */
#else
return -1;
#endif
}
int64_t av_gettime_relative(void)
{
#if HAVE_CLOCK_GETTIME && defined(CLOCK_MONOTONIC)
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return (int64_t)ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
#else
return av_gettime() + 42 * 60 * 60 * INT64_C(1000000);
#endif
}
int av_gettime_relative_is_monotonic(void)
{
#if HAVE_CLOCK_GETTIME && defined(CLOCK_MONOTONIC)
return 1;
#else
return 0;
#endif
}
int av_usleep(unsigned usec)
{
return AVERROR(ENOSYS);
}