mipwavreader.h

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/*
    
  This file is a part of EMIPLIB, the EDM Media over IP Library.
  
  Copyright (C) 2006-2011  Hasselt University - Expertise Centre for
                      Digital Media (EDM) (http://www.edm.uhasselt.be)

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  
  USA

*/

#ifndef MIPWAVREADER_H

#define MIPWAVREADER_H

#include "mipconfig.h"
#include "miperrorbase.h"
#include "miptypes.h"
#include <stdio.h>

class EMIPLIB_IMPORTEXPORT MIPWAVReader : public MIPErrorBase
{
public:
        MIPWAVReader();
        ~MIPWAVReader();

        bool open(const std::string &fileName);

        int getSamplingRate() const                                                                     { return m_samplingRate; }

        int getNumberOfChannels() const                                                                 { return m_channels; }

        int64_t getNumberOfFrames() const                                                               { return m_totalFrames; }

        bool readFrames(float *pBuffer, int numFrames, int *numFramesRead);

        bool readFrames(int16_t *pBuffer, int numFrames, int *numFramesRead);

        bool rewind();

        bool close();
private:
        FILE *m_file;
        int m_samplingRate;
        int m_channels;
        int m_frameSize;
        int64_t m_framesLeft;
        int64_t m_totalFrames;
        int m_bytesPerSample;
        long m_dataStartPos;
        float m_scale;
        uint8_t *m_pFrameBuffer;
        uint32_t m_negStartVal;
};

#endif // MIPWAVREADER_H