mirror of
https://github.com/outbackdingo/UltraGrid.git
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116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
/*
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* FILE: tv.h
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* AUTHOR: Colin Perkins <csp@csperkins.org>
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* MODIFIED: Ladan Gharai <ladan@isi.edu>
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*
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* Copyright (c) 2001-2003 University of Southern California
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* Copyright (c) 2005-2023 CESNET z.s.p.o.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, is permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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*
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* This product includes software developed by the University of Southern
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* California Information Sciences Institute.
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*
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* 4. Neither the name of the University nor of the Institute may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef TV_H_8332A958_38EB_4FE7_94E6_22C71BECD013
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#define TV_H_8332A958_38EB_4FE7_94E6_22C71BECD013
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#ifdef __cplusplus
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#include <cstdint>
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#include <ctime>
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#else
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#include <stdint.h>
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#include <time.h>
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#endif
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#ifndef _MSC_VER
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#include <sys/time.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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uint32_t get_local_mediatime_offset(void);
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uint32_t get_local_mediatime(void);
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void ts_add_nsec(struct timespec *ts, long long offset);
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double tv_diff(struct timeval curr_time, struct timeval prev_time);
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uint32_t tv_diff_usec(struct timeval curr_time, struct timeval prev_time);
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void tv_add(struct timeval *ts, double offset_secs);
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void tv_add_usec(struct timeval *ts, long long offset);
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int tv_gt(struct timeval a, struct timeval b);
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uint32_t get_std_audio_local_mediatime(double samples, int rate);
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uint32_t get_std_video_local_mediatime(void);
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typedef long long time_ns_t;
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#define MS_IN_NS 1000000
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#define MS_IN_NS_DBL 1000000.0
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#define MS_IN_SEC 1000
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#define MS_IN_SEC_DBL 1000.0
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#define US_IN_SEC 1000000LL
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#define US_IN_NS 1000LL
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#define US_IN_SEC_DBL ((double) US_IN_SEC)
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#define NS_IN_MS 1000000LL
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#define NS_IN_MS_DBL 1E6
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#define NS_IN_SEC 1000000000LL
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#define NS_IN_SEC_DBL ((double) NS_IN_SEC)
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#define NS_IN_US (NS_IN_SEC/US_IN_SEC)
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#define NS_IN_US_DBL ((double) NS_IN_US)
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static inline time_ns_t get_time_in_ns() {
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#ifdef HAVE_TIMESPEC_GET
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struct timespec ts = { 0, 0 };
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timespec_get(&ts, TIME_UTC);
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return ts.tv_sec * NS_IN_SEC + ts.tv_nsec;
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#else
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struct timeval tv = { 0, 0 };
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gettimeofday(&tv, NULL);
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return tv.tv_sec * NS_IN_SEC + tv.tv_usec * NS_IN_US;
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#endif
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}
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// old macOS compat
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#if !defined HAVE_TIMESPEC_GET
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#ifndef TIME_UTC
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#define TIME_UTC 1
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#endif
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int timespec_get(struct timespec *ts, int base);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif // ! defined TV_H_8332A958_38EB_4FE7_94E6_22C71BECD013
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