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annotate rvinterf/asyncshell/tchrec.c @ 1030:194967e11b2b

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fc-shell: tch record and tch play reworked for libgsm-compatible file format
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 31 May 2016 18:39:06 +0000
parents 71bbddbcc6a1
children
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1028
71bbddbcc6a1 fc-shell: tch record implemented
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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
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16 static FILE *gsm_data_file;
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17 static u_long frame_count;
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18
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19 void
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20 tch_dlbits_handler()
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21 {
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22 u_char writebytes[33];
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23
1028
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24 if (!gsm_data_file)
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25 return;
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26 gsm0610_tidsp_to_libgsm(rvi_msg + 9, writebytes);
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27 fwrite(writebytes, 1, 33, gsm_data_file);
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28 frame_count++;
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29 }
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30
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31 static void
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32 cmd_tch_record_start(filename)
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33 char *filename;
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34 {
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35 if (gsm_data_file) {
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36 printf("error: tch record session already in progress\n");
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37 return;
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38 }
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39 gsm_data_file = fopen(filename, "w");
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40 if (!gsm_data_file) {
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41 perror(filename);
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42 return;
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43 }
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44 printf("Starting TCH DL recording\n");
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45 tch_rx_control(1);
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46 send_tch_config_req(1);
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47 frame_count = 0;
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48 }
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49
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50 static void
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51 cmd_tch_record_stop()
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52 {
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53 if (!gsm_data_file) {
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54 printf("error: no tch record session in progress\n");
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55 return;
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56 }
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57 fclose(gsm_data_file);
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58 gsm_data_file = 0;
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59 printf("TCH DL recording stopped, captured %lu speech frames\n",
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60 frame_count);
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61 send_tch_config_req(0);
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62 }
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63
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64 void
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65 cmd_tch_record(argc, argv)
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66 char **argv;
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67 {
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68 if (argc < 2) {
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69 printf("error: too few arguments\n");
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70 return;
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71 }
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72 if (strcmp(argv[1], "stop"))
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73 cmd_tch_record_start(argv[1]);
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74 else
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75 cmd_tch_record_stop();
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76 }
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77
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78 void
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79 show_tch_record_status()
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80 {
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81 printf("TCH DL recording: %s\n",
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82 gsm_data_file ? "RUNNING" : "not running");
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83 }