#ifndef APE_PREPARE_H
#define APE_PREPARE_H

#include "NoWindows.h"

#define SPECIAL_FRAME_MONO_SILENCE              1
#define SPECIAL_FRAME_LEFT_SILENCE              1
#define SPECIAL_FRAME_RIGHT_SILENCE             2
#define SPECIAL_FRAME_PSEUDO_STEREO             4


/*****************************************************************************
Manage the preparation stage of compression and decompression

Tasks:

1) convert data to 32-bit
2) convert L,R to X,Y
3) calculate the CRC
4) do simple analysis
5) check for the peak value
*****************************************************************************/


class IPredictorDecompress;


class CPrepare
{
public:
    int		Prepare(const unsigned char* pRawData, int nBytes,
    			const WAVEFORMATEX* pWaveFormatEx, int* pOutputX,
    			int* pOutputY, unsigned int* pCRC, int* pSpecialCodes,
    			int* pPeakLevel);
    void	Unprepare(int X, int Y, const WAVEFORMATEX* pWaveFormatEx,
    			unsigned char* pOutput, unsigned int* pCRC);

#ifdef BACKWARDS_COMPATIBILITY
    int 	UnprepareOld(int* pInputX, int* pInputY, int nBlocks,
    			const WAVEFORMATEX* pWaveFormatEx, unsigned char* pRawData,
    			unsigned int* pCRC, int* pSpecialCodes, int nFileVersion);
#endif

};


#endif // #ifndef APE_PREPARE_H