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