FreeCalypso > hg > gsm-codec-lib

annotate hrutil/dec2hex.c @ 585:3c6bf0d26ee7 default tip

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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 0affb05c2ce2
children
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1 /*
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2 * This program reads an HRv1 *.dec file in ETSI test sequence format
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3 * (decoder input format) and converts it into TW-TS-005 Annex B
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4 * hexadecimal format.
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5 */
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6
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7 #include <stdio.h>
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8 #include <stdint.h>
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9 #include <stdlib.h>
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10 #include <string.h>
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11 #include <strings.h>
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12 #include <unistd.h>
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13 #include "../libgsmhr1/tw_gsmhr.h"
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14 #include "../libtest/tw5writer.h"
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15 #include "../libtest/local_endian.h"
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16
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17 static int
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18 convert_ft(bfi, sid)
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19 {
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20 switch (sid) {
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21 case 0:
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22 switch (bfi) {
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23 case 0:
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24 return 0;
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25 case 1:
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26 return 6;
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27 case 2:
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28 return 7;
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29 }
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30 break;
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31 case 1:
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32 return 1;
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33 case 2:
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34 switch (bfi) {
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35 case 0:
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36 return 2;
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37 case 1:
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38 case 2:
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39 return 1;
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40 }
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41 }
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42 abort();
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43 }
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44
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45 main(argc, argv)
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46 char **argv;
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47 {
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48 char *infname, *outfname;
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49 FILE *inf, *outf;
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50 int opt, rc, big_endian, ft;
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51 unsigned frame_no;
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52 int16_t params[GSMHR_NUM_PARAMS_DEC];
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53 uint8_t frame_out[GSMHR_FRAME_LEN_5993];
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54 extern int optind;
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55
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56 big_endian = is_native_big_endian();
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57 while ((opt = getopt(argc, argv, "bl")) != EOF) {
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58 switch (opt) {
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59 case 'b':
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60 big_endian = 1;
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61 continue;
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62 case 'l':
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63 big_endian = 0;
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64 continue;
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65 default:
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66 usage:
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67 fprintf(stderr,
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68 "usage: %s [-b|-l] input.dec output.hex\n",
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69 argv[0]);
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70 exit(1);
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71 }
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72 }
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73 if (argc != optind + 2)
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74 goto usage;
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75 infname = argv[optind];
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76 outfname = argv[optind+1];
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77
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78 inf = fopen(infname, "r");
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79 if (!inf) {
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80 perror(infname);
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81 exit(1);
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82 }
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83 outf = fopen(outfname, "w");
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84 if (!outf) {
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85 perror(outfname);
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86 exit(1);
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87 }
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88
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89 for (frame_no = 0; ; frame_no++) {
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90 rc = read_dec_frame(inf, big_endian, params, infname, frame_no);
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91 if (!rc)
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92 break;
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93 ft = convert_ft(params[18], params[20]);
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94 frame_out[0] = ft << 4;
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95 if (params[19])
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96 frame_out[0] |= 0x02;
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97 if (params[21])
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98 frame_out[0] |= 0x01;
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99 switch (ft) {
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100 case 0:
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101 case 2:
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102 case 6:
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103 gsmhr_pack_ts101318(params, frame_out + 1);
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104 emit_hex_frame(outf, frame_out, GSMHR_FRAME_LEN_5993);
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105 break;
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106 case 1:
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107 case 7:
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108 emit_hex_frame(outf, frame_out, 1);
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109 break;
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110 default:
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111 abort();
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112 }
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113 }
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114 exit(0);
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115 }