/* * 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 */ #ifndef AVUTIL_TIME_H#define AVUTIL_TIME_H #include <stdint.h> /** * Get the current time in microseconds. */int64_t av_gettime(void); /** * Get the current time in microseconds since some unspecified starting point. * On platforms that support it, the time comes from a monotonic clock * This property makes this time source ideal for measuring relative time. * The returned values may not be monotonic on platforms where a monotonic * clock is not available. */int64_t av_gettime_relative(void); /** * Indicates with a boolean result if the av_gettime_relative() time source * is monotonic. */int av_gettime_relative_is_monotonic(void); /** * Sleep for a period of time.  Although the duration is expressed in * microseconds, the actual delay may be rounded to the precision of the * system timer. * * @param  usec Number of microseconds to sleep. * @return zero on success or (negative) error code. */int av_usleep(unsigned usec); #endif /* AVUTIL_TIME_H */