text: /*
   * 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 */
  