Files
dvdisaster/maintenance.c
2017-02-02 22:24:37 +09:00

56 lines
1.6 KiB
C

/* dvdisaster: Additional error correction for optical media.
* Copyright (C) 2004-2015 Carsten Gnoerlich.
*
* Email: carsten@dvdisaster.org -or- cgnoerlich@fsfe.org
* Project homepage: http://www.dvdisaster.org
*
* This file is part of dvdisaster.
*
* dvdisaster is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dvdisaster is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dvdisaster. If not, see <http://www.gnu.org/licenses/>.
*/
#include "dvdisaster.h"
#if 0
void Maintenance1(char *debug_arg)
{
printf("\nMaintenance stub called with arg: %s\n\n", debug_arg);
exit(0);
}
#else
void Maintenance1(char *debug_arg)
{ GaloisTables *gt = CreateGaloisTables(RS_GENERATOR_POLY);
ReedSolomonTables *rt = CreateReedSolomonTables(gt, RS_FIRST_ROOT, RS_PRIM_ELEM, 32);
unsigned char data[2048], parity[32*2048];
int i;
memset(parity, 0, 32*2048);
for(i=0; i<223; i++)
{ int shift = (rt->shiftInit + i) % 32;
memset(data, i, 2048);
EncodeNextLayer(rt, data, parity, 2048, shift);
}
for(i=0; i<32; i++)
printf("%02x ", parity[i]);
printf("\n");
}
#endif