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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
#include <sys/resource.h>
#include "fec.h"
int main(){
unsigned char block[255];
int i;
void *rs;
struct rusage start,finish;
double extime;
int trials = 10000;
for(i=0;i<223;i++)
block[i] = 0x01;
rs = init_rs_char(8,0x187,112,11,32,0);
encode_rs_char(rs,block,&block[223]);
getrusage(RUSAGE_SELF,&start);
for(i=0;i<trials;i++){
#if 0
block[0] ^= 0xff; /* Introduce an error */
block[2] ^= 0xff; /* Introduce an error */
#endif
decode_rs_char(rs,block,NULL,0);
}
getrusage(RUSAGE_SELF,&finish);
extime = finish.ru_utime.tv_sec - start.ru_utime.tv_sec + 1e-6*(finish.ru_utime.tv_usec - start.ru_utime.tv_usec);
printf("Execution time for %d Reed-Solomon blocks using general decoder: %.2f sec\n",trials,extime);
printf("decoder speed: %g bits/s\n",trials*223*8/extime);
encode_rs_8(block,&block[223],0);
getrusage(RUSAGE_SELF,&start);
for(i=0;i<trials;i++){
#if 0
block[0] ^= 0xff; /* Introduce an error */
block[2] ^= 0xff; /* Introduce an error */
#endif
decode_rs_8(block,NULL,0,0);
}
getrusage(RUSAGE_SELF,&finish);
extime = finish.ru_utime.tv_sec - start.ru_utime.tv_sec + 1e-6*(finish.ru_utime.tv_usec - start.ru_utime.tv_usec);
printf("Execution time for %d Reed-Solomon blocks using CCSDS decoder: %.2f sec\n",trials,extime);
printf("decoder speed: %g bits/s\n",trials*223*8/extime);
exit(0);
}
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