sourcestateinfo.h

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// ##########################################################################
// ####                                                                  ####
// ####                      RTP Audio Server Project                    ####
// ####                    ============================                  ####
// ####                                                                  ####
// #### Source State Info                                                ####
// ####                                                                  ####
// ####           Copyright (C) 1999-2012 by Thomas Dreibholz            ####
// ####                                                                  ####
// #### Contact:                                                         ####
// ####    EMail: dreibh@iem.uni-due.de                                  ####
// ####    WWW:   https://www.nntb.no/~dreibh/rtpaudio                ####
// ####                                                                  ####
// #### ---------------------------------------------------------------- ####
// ####                                                                  ####
// #### 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 3 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, see                    ####
// #### <http://www.gnu.org/licenses/>.                                  ####
// ####                                                                  ####
// ##########################################################################
// $Id: sourcestateinfo.h 1286 2011-12-18 13:43:16Z dreibh $


#ifndef SOURCESTATEINFO_H
#define SOURCESTATEINFO_H


#include "tdsystem.h"
#include "synchronizable.h"
#include "seqnumvalidator.h"


class SourceStateInfo : public SeqNumValidator,
                        public Synchronizable
{
   // ====== Constructor ====================================================
   public:
   SourceStateInfo();
   
   SourceStateInfo& operator=(const SourceStateInfo& original);

 
   // ====== Reset ==========================================================
   void reset();


   // ====== Status functions ===============================================
   inline card32 getSSRC() const;

   inline card32 getLSR() const;

   card32 calculateDLSR() const;

   inline void setLSR(const card32 lsr);

   inline void setSSRC(card32 ssrc);


   // ====== Private data ===================================================
   private:
   card64 LSRUpdateTimeStamp;             // Timestamp of last setLSR() call

   card32 ReceivedPrior;                  // Packet received at last interval
   card32 ExpectedPrior;                  // Packet expected at last interval
   card32 FractionLost;                   // Fraction lost
   card32 SSRC;                           // Data source identifier
   card32 LSR;                            // Last SR packet from this source
};


#include "sourcestateinfo.icc"


#endif