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#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(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
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