annotate efrtest/cod2gsmx.c @ 556:18aca50d68df default tip

doc/Calypso-TCH-downlink: update for FR1 BFI-with-data
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 11 Oct 2024 01:54:00 +0000
parents b8e095a9e360
children
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1 /*
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2 * This program reads an EFR *.cod file in ETSI test sequence format
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3 * and converts it into Themyscira gsmx format.
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4 */
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5
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6 #include <stdio.h>
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7 #include <stdint.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include "../libgsmefr/gsm_efr.h"
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12 #include "etsi.h"
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13
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14 main(argc, argv)
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15 char **argv;
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16 {
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17 char *infname, *outfname;
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18 FILE *inf, *outf;
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19 int big_endian;
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20 unsigned frame_no;
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21 uint8_t input_bits[ETSI_ENC_NWORDS], frame[EFR_RTP_FRAME_LEN];
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22 int rc;
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23
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24 if (argc == 3 && argv[1][0] != '-') {
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25 big_endian = 0;
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26 infname = argv[1];
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27 outfname = argv[2];
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28 } else if (argc == 4 && !strcmp(argv[1], "-b")) {
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29 big_endian = 1;
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30 infname = argv[2];
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31 outfname = argv[3];
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32 } else {
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33 fprintf(stderr, "usage: %s [-b] input.cod output.gsmx\n",
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34 argv[0]);
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35 exit(1);
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36 }
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37 inf = fopen(infname, "r");
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38 if (!inf) {
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39 perror(infname);
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40 exit(1);
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41 }
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42 outf = fopen(outfname, "w");
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43 if (!outf) {
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44 perror(outfname);
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45 exit(1);
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46 }
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47 for (frame_no = 0; ; frame_no++) {
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48 rc = read_etsi_bits(inf, big_endian, input_bits,
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49 ETSI_ENC_NWORDS, infname);
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50 if (!rc)
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51 break;
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52 bits2frame(input_bits, frame, infname, frame_no);
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53 fwrite(frame, 1, sizeof frame, outf);
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54 }
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55 fclose(outf);
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56 exit(0);
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57 }