GNU Radio 2.x: rs.h Source File

00001 /* User include file for the Reed-Solomon codec
00002  * Copyright 2002, Phil Karn KA9Q
00003  * May be used under the terms of the GNU General Public License (GPL)
00004  */
00005 
00006 /* General purpose RS codec, 8-bit symbols */
00007 void encode_rs_char(void *rs,unsigned char *data,unsigned char *parity);
00008 int decode_rs_char(void *rs,unsigned char *data,int *eras_pos,
00009                    int no_eras);
00010 void *init_rs_char(unsigned int symsize,unsigned int gfpoly,
00011                    unsigned int fcr,unsigned int prim,unsigned int nroots);
00012 void free_rs_char(void *rs);
00013 
00014 /* General purpose RS codec, integer symbols */
00015 void encode_rs_int(void *rs,int *data,int *parity);
00016 int decode_rs_int(void *rs,int *data,int *eras_pos,int no_eras);
00017 void *init_rs_int(unsigned int symsize,unsigned int gfpoly,unsigned int fcr,
00018                   unsigned int prim,unsigned int nroots);
00019 void free_rs_int(void *rs);
00020 
00021 /* CCSDS standard (255,223) RS codec with conventional (*not* dual-basis)
00022  * symbol representation
00023  */
00024 void encode_rs_8(unsigned char *data,unsigned char *parity);
00025 int decode_rs_8(unsigned char *data,int *eras_pos,int no_eras);
00026 
00027 /* Tables to map from conventional->dual (Taltab) and
00028  * dual->conventional (Tal1tab) bases
00029  */
00030 extern unsigned char Taltab[],Tal1tab[];