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annotate hrutil/etsi-dec.c @ 606:bc57dcfa91d0

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hrutil: new program gsmhr-etsi-dec
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 04 Dec 2025 21:36:51 +0000
parents efrtest/etsi-dec.c@9f354d2aea13
children
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1 /*
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2 * gsmhr-etsi-dec is a test program for our GSM-HR decoder: it reads ETSI's
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3 * .dec format as input and writes raw 16-bit PCM (same as ETSI's *.out)
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4 * as output, allowing our decoder to be tested with ETSI's official test
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5 * sequences.
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6 *
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7 * ETSI input and output files are read and written in the local machine's
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8 * native byte order by default; -b and -l options can be used to force
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9 * BE or LE, respectively.
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10 */
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11
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12 #include <stdio.h>
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13 #include <stdint.h>
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14 #include <stdlib.h>
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15 #include <string.h>
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16 #include <strings.h>
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17 #include <unistd.h>
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18 #include "../libgsmhr1/tw_gsmhr.h"
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19 #include "../libtest/local_endian.h"
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21 main(argc, argv)
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22 char **argv;
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23 {
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24 char *infname, *outfname;
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25 FILE *inf, *outf;
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26 int opt, rc, big_endian;
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27 struct gsmhr_decoder_state *state;
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28 unsigned frame_no;
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29 int16_t params[GSMHR_NUM_PARAMS_DEC];
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30 int16_t pcm[160];
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31 extern int optind;
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32
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33 big_endian = is_native_big_endian();
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34 while ((opt = getopt(argc, argv, "bl")) != EOF) {
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35 switch (opt) {
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36 case 'b':
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37 big_endian = 1;
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38 continue;
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39 case 'l':
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40 big_endian = 0;
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41 continue;
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42 default:
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43 usage:
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44 fprintf(stderr,
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45 "usage: %s [-b|-l] input.dec output.out\n",
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46 argv[0]);
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47 exit(1);
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48 }
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49 }
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50 if (argc != optind + 2)
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51 goto usage;
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52 infname = argv[optind];
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53 outfname = argv[optind+1];
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54
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55 inf = fopen(infname, "r");
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56 if (!inf) {
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57 perror(infname);
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58 exit(1);
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59 }
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60 outf = fopen(outfname, "w");
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61 if (!outf) {
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62 perror(outfname);
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63 exit(1);
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64 }
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65 state = gsmhr_decoder_create();
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66 if (!state) {
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67 perror("gsmhr_decoder_create()");
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68 exit(1);
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69 }
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70 for (frame_no = 0; ; frame_no++) {
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71 rc = read_dec_frame(inf, big_endian, params, infname, frame_no);
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72 if (!rc)
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73 break;
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74 gsmhr_decode_frame(state, params, pcm);
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75 if (big_endian)
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76 write_pcm_be(outf, pcm);
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77 else
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78 write_pcm_le(outf, pcm);
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79 }
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80 fclose(outf);
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81 exit(0);
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82 }