FreeCalypso > hg > gsm-codec-lib

annotate frtest/cod2std.c @ 585:3c6bf0d26ee7

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TW-TS-005 reader: fix maximum line length bug TW-TS-005 section 4.1 states: The maximum allowed length of each line is 80 characters, not including the OS-specific newline encoding. The implementation of this line length limit in the TW-TS-005 hex file reader function in the present suite was wrong, such that lines of the full maximum length could not be read. Fix it. Note that this bug affects comment lines too, not just actual RTP payloads. Neither Annex A nor Annex B features an RTP payload format that goes to the maximum of 40 bytes, but if a comment line goes to the maximum allowed length of 80 characters not including the terminating newline, the bug will be triggered, necessitating the present fix.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 25 Feb 2025 07:49:28 +0000
parents 25649b3a83e9
children
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1 /*
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2 * This program reads an FR codec parameters file in ETSI *.cod test sequence
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3 * format and converts it into classic libgsm 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 "../libgsmfr2/tw_gsmfr.h"
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12
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13 static void
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14 bytes_to_params(bytes, params, big_endian)
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15 uint8_t *bytes;
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16 int16_t *params;
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17 {
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18 uint8_t *sp;
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19 unsigned n;
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20 uint16_t val;
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21
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22 sp = bytes;
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23 for (n = 0; n < 76; n++) {
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24 if (big_endian)
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25 val = ((uint16_t) sp[0] << 8) | ((uint16_t) sp[1]);
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26 else
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27 val = ((uint16_t) sp[1] << 8) | ((uint16_t) sp[0]);
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28 params[n] = val;
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29 sp += 2;
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30 }
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31 }
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32
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33 main(argc, argv)
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34 char **argv;
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35 {
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36 char *infname, *outfname;
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37 FILE *inf, *outf;
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38 int big_endian;
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39 unsigned frame_no;
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40 uint8_t input_bytes[76*2], frame[33];
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41 int16_t params[76];
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42 int cc;
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43
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44 if (argc == 3 && argv[1][0] != '-') {
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45 big_endian = 0;
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46 infname = argv[1];
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47 outfname = argv[2];
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48 } else if (argc == 4 && !strcmp(argv[1], "-b")) {
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49 big_endian = 1;
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50 infname = argv[2];
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51 outfname = argv[3];
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52 } else {
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53 fprintf(stderr, "usage: %s [-b] input.cod output.gsm\n",
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54 argv[0]);
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55 exit(1);
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56 }
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57 inf = fopen(infname, "r");
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58 if (!inf) {
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59 perror(infname);
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60 exit(1);
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61 }
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62 outf = fopen(outfname, "w");
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63 if (!outf) {
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64 perror(outfname);
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65 exit(1);
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66 }
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67 for (frame_no = 0; ; frame_no++) {
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68 cc = fread(input_bytes, 2, 76, inf);
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69 if (cc == 0)
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70 break;
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71 if (cc != 76) {
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72 fprintf(stderr, "error: short read from %s\n", infname);
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73 exit(1);
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74 }
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75 bytes_to_params(input_bytes, params, big_endian);
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76 gsmfr_pack_from_array(params, frame);
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77 fwrite(frame, 1, sizeof frame, outf);
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78 }
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79 fclose(outf);
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80 exit(0);
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81 }