/* -*- C++ -*- */

/*
 * Copyright 2008 Steve Glass
 * 
 * This file is part of OP25.
 * 
 * OP25 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, or (at your option)
 * any later version.
 * 
 * OP25 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 OP25; see the file COPYING.  If not, write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Boston, MA
 * 02110-1301, USA.
 */

#ifndef INCLUDED_VC55_IMBE_DECODER_H 
#define INCLUDED_VC55_IMBE_DECODER_H 

#include "imbe_decoder.h"

/**
 * vc55_imbe_decoder uses the VC55PR vocoder to decode voice. Note
 * that the VC55 produces audio but this is not fed back to the flow
 * graph.
 * 
 */
class vc55_imbe_decoder : public imbe_decoder {
public:

   /**
    * vc55_imbe_decoder default constructor.
    */
   vc55_imbe_decoder();

   /**
    * vc55_imbe_decoder (virtual) destructor.
    */
   virtual ~vc55_imbe_decoder();

   /**
    * Passess the voice_codeword in_out to the VC55PR device.
    *
    * \param cw IMBE codewords and parity.
    */
   virtual void decode(const voice_codeword& cw);

private:

   /**
    * File descriptor for the actual terminal device.
    */
   int32_t d_fd;

};

#endif /* INCLUDED_VC55_IMBE_DECODER_H */