SdpTime.cxx
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上传日期:2013-07-25
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- /* ====================================================================
- * The Vovida Software License, Version 1.0
- *
- * Copyright (c) 2000 Vovida Networks, Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The names "VOCAL", "Vovida Open Communication Application Library",
- * and "Vovida Open Communication Application Library (VOCAL)" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact vocal@vovida.org.
- *
- * 4. Products derived from this software may not be called "VOCAL", nor
- * may "VOCAL" appear in their name, without prior written
- * permission of Vovida Networks, Inc.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
- * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
- * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
- * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const SdpTime_cxx_Version =
- "$Id: SdpTime.cxx,v 1.18 2001/07/09 23:42:10 bko Exp $";
- //#include <assert.h>
- #include <cassert>
- #include <time.h>
- #include <strstream>
- #include "SdpSession.hxx"
- SdpTime::SdpTime()
- : repeatList()
- {
- char timeStr[256];
- sprintf(timeStr, "%u", static_cast < unsigned int > (time(NULL) + NTP_UX_DIFF) );
- startTime = timeStr;
- ;
- stopTime = "0";
- } // SdpTime::SdpTime
- SdpTime::SdpTime(time_t start, time_t end)
- : repeatList()
- {
- char timeStr[256];
- sprintf(timeStr, "%u", static_cast < unsigned int > (start + NTP_UX_DIFF) );
- startTime = timeStr;
- sprintf(timeStr, "%u", static_cast < unsigned int > (end + NTP_UX_DIFF) );
- stopTime = timeStr;
- }
- ///
- SdpTime::SdpTime (split_t& timeDescriptionLines)
- {
- split_t::iterator linecount = timeDescriptionLines.begin();
- while (linecount != timeDescriptionLines.end())
- {
- if ((*linecount)[0] == 't')
- {
- string s = (*linecount);
- s.erase (0, 2);
- chomp (&s);
- split_t tList (split(s, " "));
- if (tList.size() != 2)
- {
- throw SdpExceptions (PARAM_NUMERR);
- }
- else
- {
- startTime = tList[0];
- stopTime = tList[1];
- }
- }
- else if ((*linecount)[0] == 'r')
- {
- string s = (*linecount);
- s.erase (0, 2);
- chomp (&s);
- split_t rList (split(s, " "));
- if (rList.size() < 2)
- {
- throw SdpExceptions (PARAM_NUMERR);
- }
- else
- {
- SdpTimeRepeat stp;
- split_t::iterator iter;
- iter = rList.begin();
- stp.setInterval((*iter));
- ++iter;
- stp.setActiveDuration((*iter));
- ++iter;
- while (iter != rList.end()) // at least one offset
- {
- // Push the offset on to the offsetList
- stp.addOffset((*iter));
- ++iter;
- }
- repeatList.push_back(stp);
- }
- }
- ++linecount;
- }
- } // SdpTime::SdpTime
- ///
- void
- SdpTime::encode (ostrstream& s)
- {
- s << "t=" << startTime << ' ' << stopTime << "rn";
- vector < SdpTimeRepeat > ::iterator repeatIter;
- repeatIter = repeatList.begin();
- while (repeatIter != repeatList.end())
- {
- s << "r=" << (*repeatIter).getInterval() << ' '
- << (*repeatIter).getActiveDuration() ;
- if (0 == (*repeatIter).getOffsetListSize())
- {
- s << "rn";
- }
- else
- {
- vector < string > offsetList;
- offsetList = (*repeatIter).getOffsetList();
- vector < string > ::iterator offsetIter;
- offsetIter = offsetList.begin();
- while (offsetIter != offsetList.end())
- {
- s << ' ' << *offsetIter ;
- ++offsetIter;
- }
- s << "rn";
- }
- ++repeatIter;
- }
- } // SdpTime::encode
- SdpTimeRepeat::SdpTimeRepeat()
- {
- interval = "";
- activeDuration = "";
- }