A Codecless Monochrome AVI Reader

/*****************************************************************************************************************
							Author : Fr�d�ric Ntawiniga
							Date   : May 14,2006
							Version: 1.1
							Avi monochrome file reader using Opencv
******************************************************************************************************************/

#ifndef _MONOCHROMEAVIREADER_H_
#define _MONOCHROMEAVIREADER_H_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include <windows.h>
#include <vfw.h>

#include "huffyuv.h"

#include <cv.h>
#include <highgui.h>
#include <cvaux.h>

/*
#pragma comment(lib,"cxcore.lib")
#pragma comment(lib,"cv.lib")
#pragma comment(lib,"highgui.lib")
#pragma comment(lib,"vfw32.lib")
#pragma comment(lib,"huffyuv.lib")
*/

#define HFYU    mmioFOURCC('H','F','Y','U')	//compressed   data
#define hfyu    mmioFOURCC('h','f','y','u')	//compressed   data
#define Y800    mmioFOURCC('Y','8','0','0')	//uncompressed data
#define y800    mmioFOURCC('y','8','0','0')	//uncompressed data
#define DIB     mmioFOURCC('D','I','B',' ')	//uncompressed data
#define dib     mmioFOURCC('d','i','b',' ')	//uncompressed data

class CMonochromeAviReader  
{
public:
	CMonochromeAviReader();
	LONG GetNbFrames();
	int Open(const char* filename);
	IplImage* ReadFrame(unsigned int index);
	void Close();

	virtual ~CMonochromeAviReader();

private:

	
	IplImage*     m_pFrame;
	IplImage*     m_pFrameRGB;

	ICDECOMPRESS  m_icinfo;

	LONG		  m_streamLength;	// Length of the HFYU compressed data
	LONG          m_currentIndex;	// Frame Index in the AVI stream
	LONG          m_nbFrames;		// Number of frames in the AVI stream
	PAVIFILE	  m_pFile;			// Pointer to the AVI file
	PAVISTREAM	  m_pAviStream;		// Pointer to the AVI stream
	AVISTREAMINFO m_aviStreamInfo;	// AVI stream informations
	AVIFILEINFO   m_aviFileInfo;    // AVI file informations
	unsigned int  m_width;
	unsigned int  m_height;

	DWORD         m_fccHandler;
	int			  m_usedChannels;
	LONG		  m_fmtLength;
	LONG          m_frameStreamLength;

	CodecInst     m_codec;
};

#endif // _MONOCHROMEAVIREADER_H_