61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
#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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{
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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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}
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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 *
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(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",
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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 *
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(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",
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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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