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133 lines
3.3 KiB
133 lines
3.3 KiB
/*
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* $Id$
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*
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* Copyright (C) 2002-2003 Fhg Fokus
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*
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* This file is part of sems, a free SIP media server.
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*
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* sems is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* For a license to use the ser software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* sems is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _AmMediaProcessor_h_
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#define _AmMediaProcessor_h_
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#include "AmSession.h"
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#include "AmEventQueue.h"
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#include <set>
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using std::set;
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#include <map>
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using std::map;
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using std::multimap;
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struct SchedRequest;
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/**
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* \brief Media processing thread
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*
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* This class implements a media processing thread.
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* It processes the media and triggers the sending of RTP
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* of all sessions added to it.
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*/
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class AmMediaProcessorThread :
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public AmThread,
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public AmEventHandler
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{
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AmEventQueue events;
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unsigned char buffer[AUDIO_BUFFER_SIZE];
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set<AmSession*> sessions;
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void processAudio(unsigned int ts);
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/**
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* Process pending DTMF events
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*/
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void processDtmfEvents();
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// AmThread interface
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void run();
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void on_stop();
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// AmEventHandler interface
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void process(AmEvent* e);
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public:
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AmMediaProcessorThread();
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~AmMediaProcessorThread();
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inline void postRequest(SchedRequest* sr);
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unsigned int getLoad();
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};
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/**
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* \brief Media processing thread manager
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*
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* This class implements the manager that assigns and removes
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* the Sessions to the various \ref MediaProcessorThreads,
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* according to their call group. This class contains the API
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* for the MediaProcessor.
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*/
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class AmMediaProcessor
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{
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static AmMediaProcessor* _instance;
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unsigned int num_threads;
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AmMediaProcessorThread** threads;
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map<string, unsigned int> callgroup2thread;
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multimap<string, AmSession*> callgroupmembers;
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map<AmSession*, string> session2callgroup;
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AmMutex group_mut;
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AmMediaProcessor();
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~AmMediaProcessor();
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void removeFromProcessor(AmSession* s, unsigned int r_type);
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public:
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/**
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* InsertSession : inserts the session to the processor
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* RemoveSession : remove the session from the processor
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* ClearSession : remove the session from processor and clear audio
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*/
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enum { InsertSession, RemoveSession, ClearSession };
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static AmMediaProcessor* instance();
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void init();
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/** Add session s to processor */
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void addSession(AmSession* s, const string& callgroup);
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/** Remove session s from processor */
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void removeSession(AmSession* s);
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/** Remove session s from processor and clear its audio */
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void clearSession(AmSession* s);
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};
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#endif
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// Local Variables:
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// mode:C++
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// End:
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