decoderinterface.h

Go to the documentation of this file.

// ##########################################################################
// ####                                                                  ####
// ####                      RTP Audio Server Project                    ####
// ####                    ============================                  ####
// ####                                                                  ####
// #### Decoder Interface                                                ####
// ####                                                                  ####
// ####           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: decoderinterface.h 1293 2011-12-19 14:59:28Z dreibh $


#ifndef DECODERINTERFACE_H
#define DECODERINTERFACE_H


#include "tdsystem.h"
#include "sourcestateinfo.h"
#include "mediainfo.h"


struct DecoderPacket
{
   void* Buffer;

   cardinal Length;

   card16 SequenceNumber;

   card32 TimeStamp;

   card8 PayloadType;

   bool Marker;


   SourceStateInfo** SSIArray;


   cardinal Layer;

   cardinal Layers;
};



class DecoderInterface
{
   // ====== Decoder type ===================================================
   public:
   virtual const card16 getTypeID() const = 0;

   virtual const char* getTypeName() const = 0;


   // ====== Initialization/Clean-up ========================================
   virtual void activate() = 0;

   virtual void deactivate() = 0;

   virtual void reset() = 0;


   // ====== Check next packet ==============================================
   virtual bool checkNextPacket(DecoderPacket* packet) = 0;


   // ====== Decode next packet =============================================
   virtual void handleNextPacket(const DecoderPacket* decoderPacket) = 0;


   // ====== Status functions ===============================================
   virtual void getMediaInfo(MediaInfo& mediaInfo) const = 0;

   virtual card8 getErrorCode() const = 0;

   virtual card64 getPosition() const = 0;

   virtual card64 getMaxPosition() const = 0;
};


#endif