69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
#ifndef _NORM_ENCODER_RS16
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#define _NORM_ENCODER_RS16
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#include "normEncoder.h"
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#include "protoDefs.h" // for UINT16
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class NormEncoderRS16 : public NormEncoder
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{
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public:
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NormEncoderRS16();
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~NormEncoderRS16();
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virtual bool Init(unsigned int numData, unsigned int numParity, UINT16 vectorSize);
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virtual void Destroy();
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virtual void Encode(unsigned int segmentId, const char* dataVector, char** parityVectorList);
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unsigned int GetNumData()
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{return ndata;}
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unsigned int GetNumParity()
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{return npar;}
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unsigned int GetVectorSize()
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{return vector_size;}
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private:
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unsigned int ndata; // max data pkts per block (k)
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unsigned int npar; // No. of parity packets (n-k)
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unsigned int vector_size; // Size of biggest vector to encode
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UINT8* enc_matrix;
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unsigned int enc_index;
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}; // end class NormEncoderRS16
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class NormDecoderRS16 : public NormDecoder
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{
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public:
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NormDecoderRS16();
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virtual ~NormDecoderRS16();
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virtual bool Init(unsigned int numData, unsigned int numParity, UINT16 vectorSize);
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virtual void Destroy();
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virtual int Decode(char** vectorList, unsigned int numData, unsigned int erasureCount, unsigned int* erasureLocs);
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unsigned int GetNumParity()
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{return npar;}
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unsigned int GetVectorSize()
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{return vector_size;}
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private:
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bool InvertDecodingMatrix(); // used in Decode() method
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unsigned int ndata; // max data pkts per block (k)
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unsigned int npar; // No. of parity packets (n-k)
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UINT16 vector_size; // Size of biggest vector to encode
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UINT8* enc_matrix;
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UINT8* dec_matrix;
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unsigned int* parity_loc;
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// These "inv_" members are used in InvertDecodingMatrix()
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unsigned int* inv_ndxc;
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unsigned int* inv_ndxr;
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unsigned int* inv_pivt;
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UINT8* inv_id_row;
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UINT8* inv_temp_row;
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}; // end class NormDecoderRS16
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#endif // _NORM_ENCODER_RS16
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