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#ifndef _NORM_ENCODER_RS8
#define _NORM_ENCODER_RS8
#include "normEncoder.h"
#include "protoDefs.h" // for UINT16
class NormEncoderRS8 : public NormEncoder
{
public:
NormEncoderRS8();
~NormEncoderRS8();
virtual bool Init(unsigned int numData, unsigned int numParity, UINT16 vectorSize);
virtual void Destroy();
virtual void Encode(unsigned int segmentId, const char* dataVector, char** parityVectorList);
unsigned int GetNumData()
{return ndata;}
unsigned int GetNumParity()
{return npar;}
unsigned int GetVectorSize()
{return vector_size;}
private:
unsigned int ndata; // max data pkts per block (k)
unsigned int npar; // No. of parity packets (n-k)
unsigned int vector_size; // Size of biggest vector to encode
UINT8* enc_matrix;
}; // end class NormEncoder
class NormDecoderRS8 : public NormDecoder
{
public:
NormDecoderRS8();
virtual ~NormDecoderRS8();
virtual bool Init(unsigned int numData, unsigned int numParity, UINT16 vectorSize);
virtual void Destroy();
virtual int Decode(char** vectorList, unsigned int numData, unsigned int erasureCount, unsigned int* erasureLocs);
unsigned int GetNumParity()
{return npar;}
unsigned int GetVectorSize()
{return vector_size;}
private:
bool InvertDecodingMatrix(); // used in Decode() method
unsigned int ndata; // max data pkts per block (k)
unsigned int npar; // No. of parity packets (n-k)
UINT16 vector_size; // Size of biggest vector to encode
UINT8* enc_matrix;
UINT8* dec_matrix;
unsigned int* parity_loc;
// These "inv_" members are used in InvertDecodingMatrix()
unsigned int* inv_ndxc;
unsigned int* inv_ndxr;
unsigned int* inv_pivt;
UINT8* inv_id_row;
UINT8* inv_temp_row;
}; // end class NormDecoder
#endif // _NORM_ENCODER_RS8
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