OpPause.cxx
上传用户:sy_wanhua
上传日期:2013-07-25
资源大小:3048k
文件大小:6k
- /* ====================================================================
- * 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 OpPause_cxx_version =
- "$Id: OpPause.cxx,v 1.15 2001/05/15 20:26:08 bko Exp $";
- #include "OpPause.hxx"
- #include "RtspServer.hxx"
- #include "RtspSessionManager.hxx"
- #include "RtspPauseMsg.hxx"
- //TODO should we send 100 Trying, since pause wouldn't get 200 right away
- const Sptr<State>
- OpPause::process(const Sptr<StateEvent> event)
- {
- Sptr<RtspMsg> origMsg = event->getRtspMsg();
- Sptr<RtspPauseMsg> msg;
- msg.dynamicCast(origMsg);
- if( msg == 0 )
- {
- return NEXT_STATE;
- }
- cpLog( LOG_DEBUG, "Handling PAUSE" );
- // get session object
- Sptr<RtspSession> session = RtspSessionManager::instance().
- getRtspSession( msg->getSessionId() );
- assert( session != 0 );
- cpLog( LOG_DEBUG, "Processing pause request for session %s",
- session->sessionId().getData() );
- // set pause point in session
- Sptr<RtspRangeHdr> range = msg->getRange();
- if( range == 0 )
- {
- session->myPausePoint = session->myCurrentNpt;
- }
- else
- {
- session->myPausePoint = range->getStartTime();
- }
- cpLog( LOG_DEBUG, "Setting pause point at %d", session->myPausePoint );
- // save message so when pause point occurs, rtsp server can send response
- session->pendingPause( msg );
- return DONE_STATE;
- }
- void
- OpPause::processPendingEvent( Sptr<RtspPauseMsg> event )
- {
- Sptr<RtspSession> session = RtspSessionManager::instance().
- getRtspSession( event->getSessionId() );
- assert( session != 0 );
- cpLog( LOG_DEBUG, "Pausing session %s at %d",
- session->sessionId().getData(), session->myPausePoint );
- // clear pause msg
- // pause point isn't reset to -1 because pause state can be auto set
- session->pendingPause( 0 );
- // build and send response
- Sptr<RtspResponse> resp = new RtspResponse( event, RTSP_200_STATUS );
- RtspServer::instance().sendResponse( resp );
- // move into pause state
- switch( session->sessionMode() )
- {
- case RTSP_SESSION_MODE_PLAY:
- {
- session->state( StateMachine::instance().findState( "StatePausePlay" ) );
- //update statistic
- if (RtspConfiguration::instance().logStatistics)
- {
- session->myPerPlayReqData.myBytesSent =
- session->myPerPlayReqData.myPktsSent *
- session->fileHandler()->packetSize();
- session->myPerPlayReqData.myStreamWaitSent.stop();
- if (session->myPerPlayReqData.myPktsSent > 0)
- {
- session->myStatsMutex.lock();
- session->myStats.myPlayDataList.push_front(session->myPerPlayReqData);
- session->myStatsMutex.unlock();
- session->myPerPlayReqData.myPktsSent = 0;
- }
- }
- break;
- }
- case RTSP_SESSION_MODE_REC:
- {
- session->state( StateMachine::instance().findState( "StatePauseRecord" ) );
- //update statistic
- if (RtspConfiguration::instance().logStatistics)
- {
- session->myPerRecordReqData.myBytesRecvd =
- session->fileHandler()->packetSize() *
- session->myPerRecordReqData.myPktsRecvd;
- session->myPerRecordReqData.myStreamWaitRecvd.stop();
- if (session->myPerRecordReqData.myPktsRecvd > 0)
- {
- session->myStatsMutex.lock();
- session->myStats.myRecordDataList.push_front(session->myPerRecordReqData);
- session->myStatsMutex.unlock();
- session->myPerRecordReqData.myPktsRecvd = 0;
- }
- }
- break;
- }
- default:
- assert( 0 );
- }
- return;
- }
- /* Local Variables: */
- /* c-file-style: "stroustrup" */
- /* indent-tabs-mode: nil */
- /* c-file-offsets: ((access-label . -) (inclass . ++)) */
- /* c-basic-offset: 4 */
- /* End: */