C++ (Cpp) build_codeword示例

示例#1

文件： rs.cpp 项目： frcgang/Filesystem-over-Unreliable-Network-Storages

void ReedSolomon::encode_data (unsigned char msg[], int nbytes, unsigned char dst[])
{
    int i, LFSR[npar+1],dbyte, j;

    for(i=0; i < npar+1; i++) LFSR[i]=0;

    for (i = 0; i < nbytes; i++) {
        dbyte = msg[i] ^ LFSR[npar-1];
        for (j = npar-1; j > 0; j--) {
            LFSR[j] = LFSR[j-1] ^ Galois::gmult(genPoly[j], dbyte);
        }
        LFSR[0] = Galois::gmult(genPoly[0], dbyte);
    }

    for (i = 0; i < npar; i++)
        pBytes[i] = LFSR[i];

    build_codeword(msg, nbytes, dst);
}

示例#2

文件： reedsolomon.c 项目： ARSekkat/gpac

void
encode_data (unsigned char msg[], int nbytes, unsigned char dst[])
{
	int i, LFSR[NPAR+1],dbyte, j;

	for(i=0; i < NPAR+1; i++) LFSR[i]=0;

	for (i = 0; i < nbytes; i++) {
		dbyte = msg[i] ^ LFSR[NPAR-1];
		for (j = NPAR-1; j > 0; j--) {
			LFSR[j] = LFSR[j-1] ^ gmult(genPoly[j], dbyte);
		}
		LFSR[0] = gmult(genPoly[0], dbyte);
	}

	for (i = 0; i < NPAR; i++)
		pBytes[i] = LFSR[i];

	build_codeword(msg, nbytes, dst);
}