#ifndef APE_PREPARE_H
#define APE_PREPARE_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(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 /* APE_PREPARE_H */