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54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
#ifndef UNBITARRAY_H
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#define UNBITARRAY_H
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#include "UnBitArrayBase.h"
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#include "BitArray.h"
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class IAPEDecompress;
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struct RANGE_CODER_STRUCT_DECOMPRESS
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{
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unsigned int low; //low end of interval
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unsigned int range; //length of interval
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unsigned int buffer; //buffer for input/output
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};
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class CUnBitArray : public CUnBitArrayBase
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{
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public:
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//construction/destruction
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CUnBitArray(IAPEDecompress *pAPEInfo, int nVersion);
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~CUnBitArray();
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unsigned int DecodeValue(DECODE_VALUE_METHOD DecodeMethod, int nParam1 = 0, int nParam2 = 0);
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void GenerateArray(int *pOutputArray, int nElements, int nBytesRequired = -1);
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int DecodeValueRange(BIT_ARRAY_STATE & BitArrayState);
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void FlushState(BIT_ARRAY_STATE & BitArrayState);
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void FlushBitArray();
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void Finalize();
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private:
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void GenerateArrayRange(int *pOutputArray, int nElements);
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//data
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int m_nFlushCounter;
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int m_nFinalizeCounter;
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RANGE_CODER_STRUCT_DECOMPRESS m_RangeCoderInfo;
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unsigned __int32 m_nRefillBitThreshold;
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//functions
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__inline int RangeDecodeFast(int nShift);
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__inline int RangeDecodeFastWithUpdate(int nShift);
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__inline unsigned char GetC();
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};
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#endif /* UNBITARRAY_H */
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