bch_var.h

BCH编码与译码程序

//DengBing 20060320
//#pragma align 1

/*
16          31480
15          15740
14           7870
13           3935
12          32087
11          17491
10          22737
9           22160
                 
8           11080
7            5540
6            2770
5            1385
4           30796
3           15398
2            7699
1           30193

*/
/*
21    603 
20    886 
19    443 
18    646 
17    323 
16    762 
15    381 
14    741 
          
13    809 
12    975 
11    956 
10    478 
9     239 
8     556 
7     278 
6     139 
          
5     542 
4     271 
3     732 
2     366 
1     183 

*/
unsigned  short  BCH1_data;                                                            
unsigned short BCH1_CRC;  
unsigned long BCH2_data;
unsigned long BCH2_CRC;                                                             
//unsigned short BCHTAB[16]={22160,22737,17491,32087,3935,7870,15740,31480,30193,7699, 
//             15398,30796,1385,2770,5540,11080};
unsigned short BCH_TAB[16]={31480,15740,7870,3935,32087,17491,22737,22160,
                   11080,5540,2770,1385,30796,15398,7699,30193};
unsigned short BCH_TABLE[21]={603,886,443,646,323,762,381,741,809,975,956,478,
                    239,556,278,139,542,271,732,366,183};                   
short     DEBCH1_data[31];                                                              
short     DEBCH1_flag;                                                                 
long    falpha[32]={1,2,4,8,16,5,10,20,13,26,                                       
                    17,7,14,28,29,31,27,19,3,6,                              
                    12,24,21,15,30,25,23,11,22,9,                            
                     18,-858993460};                                          
long   findex[32]={	-1,0,1,18,2,5,19,11,3,29,                                       
                            6,27,20,8,12,23,4,10,30,17,                                
                     	  7,22,28,26,21,25,9,16,13,14,                                  
                        24,15};	
int voice_data_down_line_g729d[30][12];
int voice_data_up_line_g729d[30][12];