FreeCalypso > hg > freecalypso-tools

annotate rvinterf/asyncshell/tchrec.c @ 905:546bf873ccc8

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tchtools: new program fc-vm2gsmx
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 28 Dec 2022 09:08:50 +0000
parents 2e6764022292
children
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * TCH downlink recording functionality
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3 */
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4
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5 #include <sys/types.h>
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6 #include <stdio.h>
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7 #include <string.h>
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8 #include <strings.h>
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9 #include <stdlib.h>
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10 #include "pktmux.h"
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11 #include "tch_feature.h"
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12
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13 extern u_char rvi_msg[];
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14 extern int rvi_msg_len;
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15
4
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16 static FILE *record_file;
0
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17 static u_long frame_count;
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18
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19 void
900
8171c5c0d804 rvinterf tree: definitions for new version of TCH tap feature
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20 tch_dlbits_old_handler()
0
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21 {
4
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22 u_char *ptr;
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23 int i;
0
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24
4
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25 if (!record_file)
0
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26 return;
4
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27 /* DSP status words */
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28 ptr = rvi_msg + 3;
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29 for (i = 0; i < 3; i++) {
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30 fprintf(record_file, "%02X%02X ", ptr[0], ptr[1]);
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31 ptr += 2;
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32 }
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33 /* frame bits */
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34 for (i = 0; i < 33; i++) {
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35 fprintf(record_file, "%02X", *ptr);
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36 ptr++;
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37 }
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38 putc('\n', record_file);
0
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39 frame_count++;
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40 }
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41
901
2e6764022292 fc-shell tch record: add support for new TCH DL format
Mychaela Falconia <falcon@freecalypso.org>
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42 void
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43 tch_dlbits_new_handler(mode_kw, databytes)
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44 char *mode_kw;
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45 {
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46 u_char *ptr;
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47 int i;
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48
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49 if (!record_file)
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50 return;
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51 /* channel mode */
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52 fprintf(record_file, "%s ", mode_kw);
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53 /* DSP status words */
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54 ptr = rvi_msg + 5;
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55 for (i = 0; i < 3; i++) {
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56 fprintf(record_file, "%02X%02X ", ptr[0], ptr[1]);
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57 ptr += 2;
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58 }
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59 /* frame bits */
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60 for (i = 0; i < databytes; i++) {
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61 fprintf(record_file, "%02X", *ptr);
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62 ptr++;
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63 }
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64 /* frame number modulo 104 */
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65 fprintf(record_file, " %u\n", rvi_msg[4]);
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66 frame_count++;
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67 }
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68
0
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69 static void
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70 cmd_tch_record_start(filename)
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71 char *filename;
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72 {
4
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73 if (record_file) {
0
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74 printf("error: tch record session already in progress\n");
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75 return;
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76 }
4
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77 record_file = fopen(filename, "w");
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78 if (!record_file) {
0
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79 perror(filename);
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80 return;
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81 }
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82 printf("Starting TCH DL recording\n");
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83 tch_rx_control(1);
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84 send_tch_config_req(1);
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85 frame_count = 0;
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86 }
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87
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88 static void
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89 cmd_tch_record_stop()
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90 {
4
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91 if (!record_file) {
0
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92 printf("error: no tch record session in progress\n");
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93 return;
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94 }
4
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95 fclose(record_file);
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96 record_file = 0;
0
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97 printf("TCH DL recording stopped, captured %lu speech frames\n",
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98 frame_count);
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99 send_tch_config_req(0);
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100 }
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101
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102 void
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103 cmd_tch_record(argc, argv)
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104 char **argv;
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105 {
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106 if (argc < 2) {
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107 printf("error: too few arguments\n");
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108 return;
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109 }
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Mychaela Falconia <falcon@freecalypso.org>
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110 if (strcmp(argv[1], "stop"))
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111 cmd_tch_record_start(argv[1]);
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112 else
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113 cmd_tch_record_stop();
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114 }
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115
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116 void
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117 show_tch_record_status()
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118 {
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119 printf("TCH DL recording: %s\n",
4
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120 record_file ? "RUNNING" : "not running");
0
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121 }