FreeCalypso > hg > gsm-codec-lib

annotate miscutil/tw5a-dump.c @ 550:de333989a12b

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document gsm[e]fr-decode-tw5[-r] utilities
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 05 Oct 2024 02:16:48 +0000
parents 86d4ec69b36c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * This program reads a TW-TS-005 Annex A hexadecimal file
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3 * and dumps all frames in human-readable form.
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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 #include "../libgsmefr/gsm_efr.h"
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13 #include "../libtest/tw5reader.h"
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14
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15 static void
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16 dump_fr_frame(frame)
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17 uint8_t *frame;
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18 {
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19 int16_t params[GSMFR_NUM_PARAMS];
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20 int i, j, n;
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21
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22 printf(" SID=%d LARc", gsmfr_preproc_sid_classify(frame));
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23 gsmfr_unpack_to_array(frame, params);
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24 n = 0;
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25 for (i = 0; i < 8; i++)
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26 printf(" %d", params[n++]);
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27 if (!bcmp(frame, gsmfr_decoder_homing_frame, GSMFR_RTP_FRAME_LEN))
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28 fputs(" (DHF)", stdout);
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29 putchar('\n');
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30 for (i = 0; i < 4; i++) {
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31 putchar(' ');
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32 for (j = 0; j < 17; j++)
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33 printf(" %d", params[n++]);
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34 putchar('\n');
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35 }
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36 }
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37
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38 static void
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39 dump_efr_frame(frame)
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40 uint8_t *frame;
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41 {
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42 int16_t params[EFR_NUM_PARAMS];
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43 int i, j, n;
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44
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45 printf(" SID=%d LPC", EFR_sid_classify(frame));
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46 EFR_frame2params(frame, params);
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47 n = 0;
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48 for (i = 0; i < 5; i++)
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49 printf(" %d", params[n++]);
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50 if (!bcmp(frame, EFR_decoder_homing_frame, EFR_RTP_FRAME_LEN))
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51 fputs(" (DHF)", stdout);
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52 putchar('\n');
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53 for (i = 0; i < 4; i++) {
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54 putchar(' ');
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55 for (j = 0; j < 13; j++)
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56 printf(" %d", params[n++]);
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57 putchar('\n');
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58 }
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59 }
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60
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61 main(argc, argv)
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62 char **argv;
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63 {
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64 FILE *hexf;
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65 unsigned lineno;
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66 uint8_t frame[TWTS005_MAX_FRAME];
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67 unsigned frame_len, bfi;
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68 int rc;
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69
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70 if (argc != 2) {
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71 fprintf(stderr, "usage: %s hex-file\n", argv[0]);
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72 exit(1);
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73 }
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74 hexf = fopen(argv[1], "r");
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75 if (!hexf) {
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76 perror(argv[1]);
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77 exit(1);
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78 }
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79 lineno = 0;
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80 for (;;) {
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81 rc = twts005_read_frame(hexf, &lineno, frame, &frame_len);
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82 if (rc < 0) {
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83 fprintf(stderr, "%s line %u: not valid TW-TS-005\n",
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84 argv[1], lineno);
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85 exit(1);
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86 }
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87 if (!rc)
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88 break;
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89 switch (frame_len) {
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90 case 0:
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91 printf("line %u: NULL frame\n", lineno);
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92 break;
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93 case 1:
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94 if ((frame[0] & 0xF6) != 0xE6)
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95 goto invalid;
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96 printf("line %u: No_Data frame\n", lineno);
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97 printf(" TEH=%02X (DTXd=%u TAF=%u)\n", frame[0],
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98 (frame[0] >> 3) & 1, frame[0] & 1);
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99 break;
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100 case GSMFR_RTP_FRAME_LEN:
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101 if ((frame[0] & 0xF0) != 0xD0)
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102 goto invalid;
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103 printf("line %u: FR basic frame\n", lineno);
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104 dump_fr_frame(frame);
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105 break;
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106 case GSMFR_RTP_FRAME_LEN+1:
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107 if ((frame[0] & 0xF4) != 0xE0)
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108 goto invalid;
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109 if ((frame[1] & 0xF0) != 0xD0)
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110 goto invalid;
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111 bfi = (frame[0] >> 1) & 1;
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112 printf("line %u: FR %s frame\n", lineno,
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113 bfi ? "bad" : "extended");
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114 printf(" TEH=%02X (DTXd=%u BFI=%u TAF=%u)\n", frame[0],
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115 (frame[0] >> 3) & 1, bfi, frame[0] & 1);
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116 dump_fr_frame(frame + 1);
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117 break;
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118 case EFR_RTP_FRAME_LEN:
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119 if ((frame[0] & 0xF0) != 0xC0)
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120 goto invalid;
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121 printf("line %u: EFR basic frame\n", lineno);
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122 dump_efr_frame(frame);
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123 break;
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124 case EFR_RTP_FRAME_LEN+1:
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125 if ((frame[0] & 0xF4) != 0xE0)
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126 goto invalid;
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127 if ((frame[1] & 0xF0) != 0xC0)
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128 goto invalid;
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129 bfi = (frame[0] >> 1) & 1;
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130 printf("line %u: EFR %s frame\n", lineno,
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131 bfi ? "bad" : "extended");
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132 printf(" TEH=%02X (DTXd=%u BFI=%u TAF=%u)\n", frame[0],
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133 (frame[0] >> 3) & 1, bfi, frame[0] & 1);
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134 dump_efr_frame(frame + 1);
23
baadb1cb744d new debug utility gsmrec-dump
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135 break;
523
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136 default:
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137 invalid:
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138 fprintf(stderr,
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139 "%s line %u: not a valid FR or EFR frame\n",
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140 argv[1], lineno);
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141 exit(1);
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142 }
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143 }
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144 exit(0);
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145 }