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annotate trau-ul-prep/gsmx2tsrc.c @ 33:e828468b0afd

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doc/TFO-xform/Theory: article written
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 31 Aug 2024 20:45:25 +0000
parents 7cd046ffefe7
children
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19
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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Mychaela Falconia <falcon@freecalypso.org>
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2 * This program reads a binary file in ThemWi gsmx format
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3 * and converts it into ASCII source for TRAU-UL construction.
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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 <tw_gsmfr.h>
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12 #include <gsm_efr.h>
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13 #include "binreader.h"
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14
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15 main(argc, argv)
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16 char **argv;
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17 {
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18 FILE *binf, *outf;
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19 unsigned frame_index;
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20 uint8_t frame[BINFILE_MAX_FRAME];
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21 int16_t params[GSMFR_NUM_PARAMS];
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22 int rc, i, j, n;
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23
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24 if (argc < 2 || argc > 3) {
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25 fprintf(stderr, "usage: %s input.gsmx [output.tsrc]\n",
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26 argv[0]);
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27 exit(1);
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28 }
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29 binf = fopen(argv[1], "r");
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30 if (!binf) {
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31 perror(argv[1]);
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32 exit(1);
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33 }
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34 if (argc > 2) {
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35 outf = fopen(argv[2], "w");
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36 if (!outf) {
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37 perror(argv[2]);
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38 exit(1);
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39 }
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40 } else
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41 outf = stdout;
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42 for (frame_index = 0; ; frame_index++) {
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Mychaela Falconia <falcon@freecalypso.org>
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43 rc = binfile_read_frame(binf, frame);
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44 if (rc < 0) {
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45 fprintf(stderr, "error: garbage in %s\n", argv[1]);
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46 exit(1);
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47 }
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48 if (!rc)
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49 break;
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50 switch (frame[0] & 0xF0) {
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51 case 0xB0:
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52 fprintf(outf, "# input frame %u is BFI\n\n",
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53 frame_index);
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54 break;
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55 case 0xC0:
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56 fprintf(outf, "# input frame %u\nFrame_EFR {\n",
19
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57 frame_index);
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58 EFR_frame2params(frame, params);
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59 n = 0;
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60 fputs("\tLPC", outf);
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61 for (i = 0; i < 5; i++)
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62 fprintf(outf, " %d", params[n++]);
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63 putc('\n', outf);
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64 for (i = 0; i < 4; i++) {
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65 fputs("\tsf", outf);
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66 for (j = 0; j < 13; j++)
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67 fprintf(outf, " %d", params[n++]);
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68 putc('\n', outf);
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69 }
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70 fputs("}\n\n", outf);
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71 break;
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72 case 0xD0:
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73 fprintf(outf, "# input frame %u\nFrame_FR {\n",
19
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74 frame_index);
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75 gsmfr_unpack_to_array(frame, params);
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76 n = 0;
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77 fputs("\tLARc", outf);
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78 for (i = 0; i < 8; i++)
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79 fprintf(outf, " %d", params[n++]);
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80 putc('\n', outf);
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81 for (i = 0; i < 4; i++) {
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82 fputs("\tsf", outf);
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83 for (j = 0; j < 17; j++)
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84 fprintf(outf, " %d", params[n++]);
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85 putc('\n', outf);
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86 }
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87 fputs("}\n\n", outf);
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88 break;
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89 }
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90 }
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91 exit(0);
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92 }