| // 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 <commoncpp/config.h> |
| #include <commoncpp/socket.h> |
| #include <commoncpp/udp.h> |
| #endif |
| |
| #ifndef CCXX_PACKING |
| #if defined(__GNUC__) |
| #define CCXX_PACKED |
| #elif !defined(__hpux) && !defined(_AIX) |
| #define CCXX_PACKED |
| #endif |
| #endif |
| |
| NAMESPACE_COMMONCPP |
| |
| /** |
| * @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; |
| |
| END_NAMESPACE |
| |
| #endif // ndef CCXX_RTP_BASE_H_ |
| |
| /** EMACS ** |
| * Local variables: |
| * mode: c++ |
| * c-basic-offset: 8 |
| * End: |
| */ |