utils.c 1.19 KB
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/*
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 * The oRTP library is an RTP (Realtime Transport Protocol - rfc3550) implementation with additional features.
 * Copyright (C) 2017 Belledonne Communications SARL
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
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#include "ortp/port.h"
#include "utils.h"

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uint64_t ortp_timeval_to_ntp(const struct timeval *tv){
	uint64_t msw;
	uint64_t lsw;
	msw=tv->tv_sec + 0x83AA7E80; /* 0x83AA7E80 is the number of seconds from 1900 to 1970 */
	lsw=(uint32_t)((double)tv->tv_usec*(double)(((uint64_t)1)<<32)*1.0e-6);
	return msw<<32 | lsw;
}