// Copyright (C) 2001-2005 Federico Montesino Pouzols <fedemp@altern.org>. // // 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. // // As a special exception, you may use this file as part of a free software // library without restriction. Specifically, if other files instantiate // templates or use macros or inline functions from this file, or you compile // this file and link it with other files to produce an executable, this // file does not by itself cause the resulting executable to be covered by // the GNU General Public License. This exception does not however // invalidate any other reasons why the executable file might be covered by // the GNU General Public License. // // This exception applies only to the code released under the name GNU // ccRTP. If you copy code from other releases into a copy of GNU // ccRTP, as the General Public License permits, the exception does // not apply to the code that you add in this way. To avoid misleading // anyone as to the status of such modified files, you must delete // this exception notice from them. // // If you write modifications of your own for GNU ccRTP, it is your choice // whether to permit this exception to apply to your modifications. // If you do not wish that, delete this exception notice. // #ifndef CCXX_RTP_BASE_H_ #define CCXX_RTP_BASE_H_ #ifndef CCXX_SOCKET_H_ #include <cc++/config.h> #include <cc++/socket.h> #endif #ifndef CCXX_PACKING #if defined(__GNUC__) #define CCXX_PACKED #elif !defined(__hpux) && !defined(_AIX) #define CCXX_PACKED #endif #endif #ifdef CCXX_NAMESPACES namespace ost { #endif /** * @file base.h * * @short Base elements for RTP stacks: constants, types and global * functions. **/ /// RTP protocol version supported. const uint8 CCRTP_VERSION = 2; /// Time interval expressed in microseconds. typedef uint32 microtimeout_t; /// Time interval expressed in nanoseconds. typedef uint32 nanotimeout_t; /** * Convert a time interval, expressed as a microtimeout_t (number of * microseconds), into a timeval value. * * @param to time interval, in microseconds. * @return the same time interval, as a timeval value. **/ __EXPORT timeval microtimeout2Timeval(microtimeout_t to); /** * Convert a time interval, expressed as a timeval value into a * microseconds counter. * * @param t time, as a timeval. * @return the same time, as a microseconds counter. **/ inline microtimeout_t timeval2microtimeout(const timeval& t) { return ((t.tv_sec * 1000000ul) + t.tv_usec); } /** * Convert a time interval, expressed as the difference between two * timeval values (t1-t2), into a microseconds counter. * * @param t1 First timeval. * @param t2 Second timeval. * @return difference between t1 and t2, in microseconds. **/ inline microtimeout_t timevalDiff2microtimeout(const timeval& t1, const timeval& t2) { return ((t1.tv_sec - t2.tv_sec) * 1000000ul) + (t1.tv_usec - t2.tv_usec); } /// registered default RTP data transport port const tpport_t DefaultRTPDataPort = 5004; /// registered default RTCP transport port const tpport_t DefaultRTCPPort = 5005; #ifndef HAVE_GETTIMEOFDAY #ifdef WIN32 __EXPORT int gettimeofday(struct timeval *tv_, void *tz_); #endif #endif #ifdef CCXX_NAMESPACES } #endif #endif // ndef CCXX_RTP_BASE_H_ /** EMACS ** * Local variables: * mode: c++ * c-basic-offset: 8 * End: */