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50 lines
1.0 KiB
C++
Executable File
50 lines
1.0 KiB
C++
Executable File
// Stream/LSBFEncoder.h
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#ifndef __STREAM_LSBFENCODER_H
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#define __STREAM_LSBFENCODER_H
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#include "../IStream.h"
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#include "OutBuffer.h"
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namespace NStream {
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namespace NLSBF {
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class CEncoder
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{
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COutBuffer m_Stream;
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UInt32 m_BitPos;
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Byte m_CurByte;
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public:
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bool Create(UInt32 bufferSize) { return m_Stream.Create(bufferSize); }
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void SetStream(ISequentialOutStream *outStream) { m_Stream.SetStream(outStream); }
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void ReleaseStream() { m_Stream.ReleaseStream(); }
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void Init()
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{
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m_Stream.Init();
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m_BitPos = 8;
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m_CurByte = 0;
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}
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HRESULT Flush()
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{
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if(m_BitPos < 8)
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WriteBits(0, m_BitPos);
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return m_Stream.Flush();
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}
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void WriteBits(UInt32 value, UInt32 numBits);
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UInt32 GetBitPosition() const { return (8 - m_BitPos); }
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UInt64 GetProcessedSize() const {
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return m_Stream.GetProcessedSize() + (8 - m_BitPos + 7) /8; }
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};
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class CReverseEncoder
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{
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CEncoder *m_Encoder;
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public:
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void Init(CEncoder *encoder) { m_Encoder = encoder; }
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void WriteBits(UInt32 value, UInt32 numBits);
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};
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}}
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#endif
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