FFmpeg 5.1.6
time.h
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1/*
2 * Copyright (c) 2000-2003 Fabrice Bellard
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#ifndef AVUTIL_TIME_H
22#define AVUTIL_TIME_H
23
24#include <stdint.h>
25
26/**
27 * Get the current time in microseconds.
28 */
29int64_t av_gettime(void);
30
31/**
32 * Get the current time in microseconds since some unspecified starting point.
33 * On platforms that support it, the time comes from a monotonic clock
34 * This property makes this time source ideal for measuring relative time.
35 * The returned values may not be monotonic on platforms where a monotonic
36 * clock is not available.
37 */
38int64_t av_gettime_relative(void);
39
40/**
41 * Indicates with a boolean result if the av_gettime_relative() time source
42 * is monotonic.
43 */
45
46/**
47 * Sleep for a period of time. Although the duration is expressed in
48 * microseconds, the actual delay may be rounded to the precision of the
49 * system timer.
50 *
51 * @param usec Number of microseconds to sleep.
52 * @return zero on success or (negative) error code.
53 */
54int av_usleep(unsigned usec);
55
56#endif /* AVUTIL_TIME_H */
int av_usleep(unsigned usec)
Sleep for a period of time.
int64_t av_gettime_relative(void)
Get the current time in microseconds since some unspecified starting point.
int av_gettime_relative_is_monotonic(void)
Indicates with a boolean result if the av_gettime_relative() time source is monotonic.
int64_t av_gettime(void)
Get the current time in microseconds.