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#ifndef APE_APEDECOMPRESS_H
#define APE_APEDECOMPRESS_H
#include "APEDecompress.h"
class CUnBitArray;
class CPrepare;
class CAPEInfo;
class IPredictorDecompress;
#include "UnBitArrayBase.h"
#include "MACLib.h"
#include "Prepare.h"
#include "CircleBuffer.h"
class CAPEDecompress : public IAPEDecompress
{
public:
CAPEDecompress(int * pErrorCode, CAPEInfo * pAPEInfo, int nStartBlock = -1, int nFinishBlock = -1);
~CAPEDecompress();
int GetData(char * pBuffer, int nBlocks, int * pBlocksRetrieved);
int Seek(int nBlockOffset);
int GetInfo(APE_DECOMPRESS_FIELDS Field, int nParam1 = 0, int nParam2 = 0);
protected:
// file info
int m_nBlockAlign;
int m_nCurrentFrame;
// start / finish information
int m_nStartBlock;
int m_nFinishBlock;
int m_nCurrentBlock;
BOOL m_bIsRanged;
BOOL m_bDecompressorInitialized;
// decoding tools
CPrepare m_Prepare;
WAVEFORMATEX m_wfeInput;
unsigned int m_nCRC;
unsigned int m_nStoredCRC;
int m_nSpecialCodes;
int SeekToFrame(int nFrameIndex);
void DecodeBlocksToFrameBuffer(int nBlocks);
int FillFrameBuffer();
void StartFrame();
void EndFrame();
int InitializeDecompressor();
// more decoding components
CSmartPtr<CAPEInfo> m_spAPEInfo;
CSmartPtr<CUnBitArrayBase> m_spUnBitArray;
UNBIT_ARRAY_STATE m_BitArrayStateX;
UNBIT_ARRAY_STATE m_BitArrayStateY;
CSmartPtr<IPredictorDecompress> m_spNewPredictorX;
CSmartPtr<IPredictorDecompress> m_spNewPredictorY;
int m_nLastX;
// decoding buffer
BOOL m_bErrorDecodingCurrentFrame;
int m_nCurrentFrameBufferBlock;
int m_nFrameBufferFinishedBlocks;
CCircleBuffer m_cbFrameBuffer;
};
#endif // #ifndef APE_APEDECOMPRESS_H
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