RtspRangeHdr.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 281421,000, 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 RtspRangeHdr_cxx_Version =
- "$Id: RtspRangeHdr.cxx,v 1.13 2001/06/27 02:21:40 wjin Exp $";
- //#include <stdio.h>
- #include "RtspRangeHdr.hxx"
- #include "cpLog.h"
- RtspRangeHdr::RtspRangeHdr()
- : myStartTime(0.0),
- myEndTime(0.0)
- { }
- RtspRangeHdr::RtspRangeHdr(double startTime, double endTime)
- : myStartTime(startTime),
- myEndTime(endTime)
- { }
- RtspRangeHdr::RtspRangeHdr(const RtspRangeHdr& x)
- : myStartTime(x.myStartTime),
- myEndTime(x.myEndTime)
- { }
- RtspRangeHdr&
- RtspRangeHdr::operator=(const RtspRangeHdr& x)
- {
- if (&x != this)
- {
- myStartTime = x.myStartTime;
- myEndTime = x.myEndTime;
- }
- return *this;
- }
- void
- RtspRangeHdr::parseRangeHeader(CharDataParser& parser)
- {
- CharData specifier;
- parser.getNextWord(&specifier);
- if (specifier.isEqualNoCase("npt", 3))
- {
- parser.getThruLength(NULL, 1); // get thru '='
- if (parser.getNextDouble(myStartTime))
- {
- parser.getThruLength(NULL, 1); // get thru '-'
- if ( ((parser.myMaskDigit)[parser.getCurChar()]) ||
- (parser.getCurChar() == '.') )
- {
- parser.getNextDouble(myEndTime);
- }
- }
- else
- {
- cpLog(LOG_ERR, "Range hdr: error read start time.");
- }
- }
- else
- {
- cpLog(LOG_ERR, "Range hdr: only support npt time right now.");
- }
-
- }
- void
- RtspRangeHdr::parseRange(const Data& rangeData)
- {
- CharData range(rangeData.getDataBuf(), rangeData.length());
- CharDataParser parser(&range);
- parseRangeHeader(parser);
- }
- Data
- RtspRangeHdr::encodeNPT()
- {
- Data nptRange = "npt=";
- char buf1[32], buf2[32];
- doubleToStr(myStartTime, buf1);
- doubleToStr(myEndTime, buf2);
- nptRange += buf1;
- nptRange += "-";
- nptRange += buf2;
- nptRange += "rn";
- return nptRange;
- }
- Data
- RtspRangeHdr::encode()
- {
- Data nptRange = "Range: ";
- nptRange += encodeNPT();
- return nptRange;
- }
- /* Local Variables: */
- /* c-file-style: "stroustrup" */
- /* indent-tabs-mode: nil */
- /* c-file-offsets: ((access-label . -) (inclass . ++)) */
- /* c-basic-offset: 4 */
- /* End: */