57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
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/*
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* Copyright (c) 2000-2003 Fabrice Bellard
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_TIME_H
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#define AVUTIL_TIME_H
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#include <stdint.h>
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/**
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* Get the current time in microseconds.
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*/
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int64_t av_gettime(void);
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/**
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* Get the current time in microseconds since some unspecified starting point.
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* On platforms that support it, the time comes from a monotonic clock
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* This property makes this time source ideal for measuring relative time.
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* The returned values may not be monotonic on platforms where a monotonic
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* clock is not available.
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*/
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int64_t av_gettime_relative(void);
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/**
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* Indicates with a boolean result if the av_gettime_relative() time source
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* is monotonic.
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*/
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int av_gettime_relative_is_monotonic(void);
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/**
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* Sleep for a period of time. Although the duration is expressed in
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* microseconds, the actual delay may be rounded to the precision of the
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* system timer.
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*
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* @param usec Number of microseconds to sleep.
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* @return zero on success or (negative) error code.
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*/
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int av_usleep(unsigned usec);
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#endif /* AVUTIL_TIME_H */
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