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86 lines
2.0 KiB
C++
Executable File
86 lines
2.0 KiB
C++
Executable File
// Rar20Decoder.h
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// According to unRAR license,
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// this code may not be used to develop a
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// RAR (WinRAR) compatible archiver
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#ifndef __RAR20_DECODER_H
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#define __RAR20_DECODER_H
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#include "../../../Common/MyCom.h"
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#include "../../ICoder.h"
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#include "../../Common/MSBFDecoder.h"
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#include "../../Common/InBuffer.h"
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#include "../LZ/LZOutWindow.h"
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#include "../Huffman/HuffmanDecoder.h"
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#include "Rar20Multimedia.h"
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#include "Rar20Const.h"
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namespace NCompress {
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namespace NRar20 {
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typedef NStream::NMSBF::CDecoder<CInBuffer> CBitDecoder;
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const int kNumHuffmanBits = 15;
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class CDecoder :
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public ICompressCoder,
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public ICompressSetDecoderProperties2,
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public CMyUnknownImp
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{
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CLZOutWindow m_OutWindowStream;
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CBitDecoder m_InBitStream;
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NHuffman::CDecoder<kNumHuffmanBits, kMainTableSize> m_MainDecoder;
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NHuffman::CDecoder<kNumHuffmanBits, kDistTableSize> m_DistDecoder;
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NHuffman::CDecoder<kNumHuffmanBits, kLenTableSize> m_LenDecoder;
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NHuffman::CDecoder<kNumHuffmanBits, kMMTableSize> m_MMDecoders[NMultimedia::kNumChanelsMax];
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NHuffman::CDecoder<kNumHuffmanBits, kLevelTableSize> m_LevelDecoder;
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bool m_AudioMode;
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NMultimedia::CPredictor m_Predictor;
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int m_NumChannels;
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UInt32 m_RepDists[kNumRepDists];
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UInt32 m_RepDistPtr;
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UInt32 m_LastLength;
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Byte m_LastLevels[kMaxTableSize];
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UInt64 m_PackSize;
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bool m_IsSolid;
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void InitStructures();
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bool ReadTables();
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bool ReadLastTables();
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public:
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CDecoder();
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MY_UNKNOWN_IMP1(ICompressSetDecoderProperties2)
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void ReleaseStreams()
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{
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m_OutWindowStream.ReleaseStream();
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m_InBitStream.ReleaseStream();
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}
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STDMETHOD(CodeReal)(ISequentialInStream *inStream,
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ISequentialOutStream *outStream, const UInt64 *inSize, const UInt64 *outSize,
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ICompressProgressInfo *progress);
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STDMETHOD(Code)(ISequentialInStream *inStream,
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ISequentialOutStream *outStream, const UInt64 *inSize, const UInt64 *outSize,
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ICompressProgressInfo *progress);
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STDMETHOD(SetDecoderProperties2)(const Byte *data, UInt32 size);
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};
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}}
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#endif
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