simpleaudioencoder.h

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// ##########################################################################
// ####                                                                  ####
// ####                      RTP Audio Server Project                    ####
// ####                    ============================                  ####
// ####                                                                  ####
// #### Simple Audio Encoder                                             ####
// ####                                                                  ####
// ####           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: simpleaudioencoder.h 1286 2011-12-18 13:43:16Z dreibh $


#ifndef SIMPLEAUDIOENCODER_H
#define SIMPLEAUDIOENCDOER_H


#include "tdsystem.h"
#include "audioencoderinterface.h"
#include "audioreaderinterface.h"
#include "audioquality.h"
#include "audioquality.h"


class SimpleAudioEncoder : public AudioEncoderInterface,
                           public AudioQuality
{
   // ====== Constructor/Destructor =========================================
   public:
   SimpleAudioEncoder(AudioReaderInterface* audioReader);

   ~SimpleAudioEncoder();


   // ====== EncoderInterface implementation ================================
   const card16 getTypeID() const;

   const char* getTypeName() const;

   void activate();

   void deactivate();

   void reset();

   bool checkInterval(card64& time, bool& newRUList);

   bool prepareNextFrame(const cardinal headerSize,
                         const cardinal maxPacketSize,
                         const cardinal flags);

   cardinal getNextPacket(EncoderPacket* encoderPacket);


   // ====== Settings ========================================================
   double getFrameRate() const;

   AbstractQoSDescription* getQoSDescription(
                              const cardinal pktHeaderSize,
                              const cardinal pktMaxSize,
                              const card64   offset);

   void updateQuality(const AbstractQoSDescription* aqd);


   // ====== Private data ===================================================
   private:
   AudioReaderInterface* Source;

   card8*       FrameBuffer;              // Current frame
   cardinal     FrameBufferPos;
   cardinal     FrameBufferSize;
   card64       FramePosition;
   card64       FrameMaxPosition;
   AudioQuality FrameQualitySetting;

   integer      MediaInfoCounter;

   card64       ByteRateLimit;
   cardinal     NetworkQualityDecrement;
   cardinal     SendError;
   card8        ErrorCode;
};


#endif