rs.h

RS编解码c语言程序4.0版,

/* User include file for the Reed-Solomon codec
 * Copyright 2002, Phil Karn KA9Q
 * May be used under the terms of the GNU General Public License (GPL)
 */

/* General purpose RS codec, 8-bit symbols */
void encode_rs_char(void *rs,unsigned char *data,unsigned char *parity);
int decode_rs_char(void *rs,unsigned char *data,int *eras_pos,
		   int no_eras);
void *init_rs_char(int symsize,int gfpoly,
		   int fcr,int prim,int nroots,
		   int pad);
void free_rs_char(void *rs);

/* General purpose RS codec, integer symbols */
void encode_rs_int(void *rs,int *data,int *parity);
int decode_rs_int(void *rs,int *data,int *eras_pos,int no_eras);
void *init_rs_int(int symsize,int gfpoly,int fcr,
		  int prim,int nroots,int pad);
void free_rs_int(void *rs);

/* CCSDS standard (255,223) RS codec with conventional (*not* dual-basis)
 * symbol representation
 */
void encode_rs_8(unsigned char *data,unsigned char *parity,int pad);
int decode_rs_8(unsigned char *data,int *eras_pos,int no_eras,int pad);

/* CCSDS standard (255,223) RS codec with dual-basis symbol representation */
void encode_rs_ccsds(unsigned char *data,unsigned char *parity,int pad);
int decode_rs_ccsds(unsigned char *data,int *eras_pos,int no_eras,int pad);

/* Tables to map from conventional->dual (Taltab) and
 * dual->conventional (Tal1tab) bases
 */
extern unsigned char Taltab[],Tal1tab[];