simpleaudiodecoder.h

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


#ifndef SIMPLEAUDIODECODER_H
#define SIMPLEAUDIODECODER_H


#include "tdsystem.h"
#include "synchronizable.h"
#include "audiowriterinterface.h"
#include "audiodecoderinterface.h"
#include "seqnumvalidator.h"
#include "audioquality.h"


class SimpleAudioDecoder : public AudioDecoderInterface,
                           public Synchronizable
{
   // ====== Constructor/Destructor =========================================
   public:
   SimpleAudioDecoder(AudioWriterInterface* audioWriter);

   ~SimpleAudioDecoder();


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

   const char* getTypeName() const;

   void activate();

   void deactivate();

   void reset();

   void getMediaInfo(MediaInfo& mediaInfo) const;

   card8 getErrorCode() const;

   card64 getPosition() const;

   card64 getMaxPosition() const;

   bool checkNextPacket(DecoderPacket* decoderPacket);

   void handleNextPacket(const DecoderPacket* decoderPacket);


   // ====== AudioDecoderInterface implementation ===========================
   card16 getSamplingRate() const;

   card8 getBits() const;

   card8 getChannels() const;


   card16 getByteOrder() const;


   cardinal getBytesPerSecond() const;

   cardinal getBitsPerSample() const;


   AudioQuality getWantedQuality() const;

   void setWantedQuality(const AudioQualityInterface& wantedQuality);


   // ====== Private data ===================================================
   private:
   SeqNumValidator       SeqNumber;
   AudioWriterInterface* Device;
   card64                Position;
   card64                MaxPosition;
   AudioQuality          WantedQuality;

   MediaInfo             Media;
   card16                AudioSamplingRate;
   card8                 AudioBits;
   card8                 AudioChannels;
   card8                 ErrorCode;
};


#endif