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38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
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#ifndef APE_PREPARE_H
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#define APE_PREPARE_H
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#define SPECIAL_FRAME_MONO_SILENCE 1
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#define SPECIAL_FRAME_LEFT_SILENCE 1
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#define SPECIAL_FRAME_RIGHT_SILENCE 2
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#define SPECIAL_FRAME_PSEUDO_STEREO 4
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/*****************************************************************************
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Manage the preparation stage of compression and decompression
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Tasks:
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1) convert data to 32-bit
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2) convert L,R to X,Y
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3) calculate the CRC
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4) do simple analysis
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5) check for the peak value
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*****************************************************************************/
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class IPredictorDecompress;
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class CPrepare
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{
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public:
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int Prepare(unsigned char *pRawData, int nBytes, const WAVEFORMATEX *pWaveFormatEx, int *pOutputX, int *pOutputY, unsigned int *pCRC, int *pSpecialCodes, int *pPeakLevel);
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void Unprepare(int X, int Y, const WAVEFORMATEX * pWaveFormatEx, unsigned char * pOutput, unsigned int * pCRC);
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#ifdef BACKWARDS_COMPATIBILITY
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int UnprepareOld(int *pInputX, int *pInputY, int nBlocks, const WAVEFORMATEX *pWaveFormatEx, unsigned char *pRawData, unsigned int *pCRC, int *pSpecialCodes, int nFileVersion);
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#endif
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};
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#endif /* APE_PREPARE_H */
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