FreeCalypso > hg > gsm-codec-lib

annotate amrconv/cod-parse.c @ 282:9ee8ad3d4d30

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frtest: rm gsmfr-hand-test and gsmfr-max-out utils These hack programs were never properly documented and were written only as part of a debug chase, in pursuit of a bug that ultimately turned out to be in our then-hacky patch to osmo-bts-sysmo, before beginning of proper patches in Osmocom. These hack programs need to be dropped from the present sw package because they depend on old libgsm, and we are eliminating that dependency.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 14 Apr 2024 05:44:47 +0000
parents 0beafaa0623f
children
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1 /*
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2 * This program reads an ETSI/3GPP AMR *.cod file and parses it into
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3 * a 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 "amr_defs.h"
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12
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13 extern char *amr_mode_names[16];
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14 extern unsigned amr_bit_lengths[9];
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15
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16 static char *type_names[4] = {
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17 "Speech",
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18 "SID_FIRST",
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19 "SID_UPDATE",
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20 "NO_DATA"
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21 };
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23 main(argc, argv)
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24 char **argv;
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25 {
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26 char *infname;
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27 FILE *inf;
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28 int big_endian;
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29 unsigned frame_no, type, mode;
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30 uint8_t input_bits[COD_FORMAT_NWORDS];
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31 uint16_t params[MAX_PRM_SIZE];
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32 int rc;
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33
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34 if (argc == 2 && argv[1][0] != '-') {
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35 big_endian = 0;
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36 infname = argv[1];
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37 } else if (argc == 3 && !strcmp(argv[1], "-b")) {
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38 big_endian = 1;
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39 infname = argv[2];
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40 } else {
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41 fprintf(stderr, "usage: %s [-b] file.cod\n", argv[0]);
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42 exit(1);
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43 }
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44 inf = fopen(infname, "r");
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45 if (!inf) {
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46 perror(infname);
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47 exit(1);
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48 }
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49 for (frame_no = 0; ; frame_no++) {
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50 rc = read_cod_bits(inf, big_endian, input_bits, infname);
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51 if (!rc)
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52 break;
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53 type = input_bits[0];
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54 mode = input_bits[245];
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55 printf("#%u: Type=%u Mode=%u", frame_no, type, mode);
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56 if (type == TX_NO_DATA) {
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57 printf(" (NO_DATA)\n");
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58 continue;
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59 }
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60 if (type > TX_NO_DATA || mode > MR122) {
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61 printf(" (unsupported)\n");
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62 continue;
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63 }
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64 printf(" (%s %s)\n", amr_mode_names[mode], type_names[type]);
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65 switch (type) {
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66 case TX_SPEECH_GOOD:
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67 preen_frame_bits(input_bits+1, amr_bit_lengths[mode],
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68 infname, frame_no);
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69 reassemble_amr_params(input_bits+1, params, mode);
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70 dump_amr_params(params, mode);
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71 break;
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72 case TX_SID_FIRST:
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73 case TX_SID_UPDATE:
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74 preen_frame_bits(input_bits+1, AMR_NBITS_SID, infname,
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75 frame_no);
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76 reassemble_amr_params(input_bits+1, params, MRDTX);
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77 dump_amr_params(params, MRDTX);
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78 break;
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79 }
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80 }
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81 exit(0);
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82 }