FreeCalypso > hg > freecalypso-tools

annotate tchtools/fc-vm2hex.c @ 1012:11391cb6bdc0

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patch from fixeria: doc change from SE K2x0 to K2xx Since their discovery in late 2022, Sony Ericsson K200 and K220 phones were collectively referred to as SE K2x0 in FreeCalypso documentation. However, now that SE K205 has been discovered as yet another member of the same family (same PCBA in different case), it makes more sense to refer to the whole family as SE K2xx.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 23 Sep 2024 12:23:20 +0000
parents 5041bcb8140f
children
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1 /*
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2 * This utility converts old-fashioned (non-AMR) TCS211 voice memo files
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3 * read out of FFS into hex strings that can be analyzed by a human,
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4 * either directly or with the aid of gsmfr-dlcap-parse utility from
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5 * Themyscira Wireless GSM codec libraries & utilities package.
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6 */
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7
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8 #include <sys/types.h>
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9 #include <stdio.h>
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10 #include <stdlib.h>
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11
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12 char *infname;
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13 FILE *inf, *outf;
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14
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15 static unsigned
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16 get_word()
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17 {
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18 u_char b[2];
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19 int i, c;
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20
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21 for (i = 0; i < 2; i++) {
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22 c = getc(inf);
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23 if (c < 0) {
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24 fprintf(stderr, "error: premature EOF in %s\n",
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25 infname);
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26 exit(1);
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27 }
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28 b[i] = c;
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29 }
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30 return((b[1] << 8) | b[0]);
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31 }
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32
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33 convert_speech_sample()
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34 {
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35 u_char bytes[34];
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36 int i, dp;
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37 unsigned word;
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38
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39 dp = 0;
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40 for (i = 0; i < 17; i++) {
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41 word = get_word();
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42 bytes[dp++] = word >> 8;
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43 bytes[dp++] = word;
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44 }
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45 for (i = 0; i < 33; i++)
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46 fprintf(outf, "%02X", bytes[i]);
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47 }
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48
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49 main(argc, argv)
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50 char **argv;
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51 {
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52 unsigned first_word;
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53
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54 if (argc < 2 || argc > 3) {
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55 fprintf(stderr, "usage: %s infile [outfile]\n", argv[0]);
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56 exit(1);
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57 }
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58 infname = argv[1];
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59 inf = fopen(infname, "r");
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60 if (!inf) {
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61 perror(infname);
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62 exit(1);
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63 }
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64 if (argc > 2) {
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65 outf = fopen(argv[2], "w");
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66 if (!outf) {
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67 perror(argv[2]);
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68 exit(1);
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69 }
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70 } else
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71 outf = stdout;
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72
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73 for (;;) {
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74 first_word = get_word();
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75 if (first_word == 0xFBFF) /* SC_VM_END_MASK */
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76 break;
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77 fprintf(outf, "%04X", first_word);
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78 if (first_word & 0x8000) { /* B_VM_SPEECH */
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79 fprintf(outf, " %04X", get_word());
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80 fprintf(outf, " %04X", get_word());
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81 putc(' ', outf);
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82 convert_speech_sample();
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83 }
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84 putc('\n', outf);
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85 }
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86 exit(0);
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87 }