/home/marsyas/marsyas/src/marsyas/WavFileSource.h

/*
** Copyright (C) 1998-2010 George Tzanetakis <gtzan@cs.uvic.ca>
**  
** 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 2 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, write to the Free Software 
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/

#ifndef MARSYAS_WAVFILESOURCE_H
#define MARSYAS_WAVFILESOURCE_H

#include "common_header.h"
#include "AbsSoundFileSource.h"

#include <string>
#include <cstdio>
#include <cstring>

namespace Marsyas
{
    class WavFileSource: public AbsSoundFileSource
    {
        private:
            short *sdata_;
            unsigned char *cdata_;
  
            FILE *sfp_;
            long sfp_begin_;
  
            mrs_natural sampleSize_; //in bytes
            mrs_natural csize_;
            mrs_natural size_;  
            short sval_;
            unsigned short bits_;
            MarControlPtr ctrl_pos_;
  
            void addControls();
            void myUpdate(MarControlPtr sender);
            unsigned long ByteSwapLong(unsigned long nLongNumber);
            unsigned short ByteSwapShort (unsigned short nValue);
  
            mrs_natural nChannels_;
            mrs_natural inSamples_;
            mrs_natural samplesToRead_;
            mrs_natural samplesRead_;
            mrs_natural samplesToWrite_;

        mrs_natural nt_;
        
            mrs_natural samplesOut_;
  
            mrs_real repetitions_;
            mrs_real duration_;
  
            mrs_natural getLinear16(realvec& win); 
            mrs_natural getLinear8(realvec& win); 


        public:
            WavFileSource(std::string name);
            WavFileSource(const WavFileSource& a);
  
            ~WavFileSource();
            MarSystem* clone() const;  


            void getHeader(std::string filename);
            void myProcess(realvec& in, realvec &out);
    };

}//namespace Marsyas


#endif     /* !MARSYAS_WAVFILESOURCE_H */ 

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