FreeCalypso > hg > gsm-codec-lib

annotate frtest/max-out.c @ 27:896ce7f1d271

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frtest: cn-debug is now gsmfr-max-out
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 20 Nov 2022 23:04:27 +0000
parents frtest/cn-debug.c@40fcd89d8823
children a8fd4ff6b013
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1 /*
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2 * This program reads an extended-libgsm binary file, dumps every frame in
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3 * human-readable form just like gsmrec-dump, but then also passes it through
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4 * our GSM FR decoder (libgsmfrp+libgsm) and looks for the highest-magnitude
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5 * PCM sample in the decoder output. This maximum output sample magnitude is
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6 * reported after the dump of each input frame. This program is intended to
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7 * serve as a debug aid, for troubleshooting of our libgsmfrp+libgsm stack.
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8 */
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9
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10 #include <stdio.h>
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11 #include <stdint.h>
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12 #include <stdlib.h>
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13 #include <gsm.h>
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14 #include "../libgsmfrp/gsm_fr_preproc.h"
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15 #include "../libtest/binreader.h"
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16
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17 main(argc, argv)
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18 char **argv;
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19 {
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20 FILE *binf;
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21 gsm dec_state;
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22 struct gsmfr_preproc_state *pp_state;
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23 unsigned frame_index;
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24 uint8_t frame[BINFILE_MAX_FRAME];
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25 int16_t pcm[160];
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26 gsm_signal fr_params[76];
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27 int rc, bfi, taf;
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28 int i, j, n;
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29 unsigned samp_abs, samp_max;
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30
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31 if (argc != 2) {
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32 fprintf(stderr, "usage: %s bin-stream-file\n", argv[0]);
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33 exit(1);
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34 }
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35 binf = fopen(argv[1], "r");
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36 if (!binf) {
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37 perror(argv[1]);
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38 exit(1);
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39 }
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40 dec_state = gsm_create();
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41 if (!dec_state) {
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42 fprintf(stderr, "gsm_create() failed!\n");
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43 exit(1);
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44 }
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45 pp_state = gsmfr_preproc_create();
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46 if (!pp_state) {
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47 fprintf(stderr, "gsmfr_preproc_create() failed!\n");
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48 exit(1);
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49 }
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50 for (frame_index = 0; ; frame_index++) {
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51 rc = binfile_read_frame(binf, frame);
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52 if (rc < 0) {
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53 fprintf(stderr, "error: garbage in %s\n", argv[1]);
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54 exit(1);
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55 }
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56 if (!rc)
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57 break;
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58 printf("#%u: ", frame_index);
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59 switch (frame[0] & 0xF0) {
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60 case 0xB0:
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61 bfi = 1;
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62 taf = frame[1] & 1;
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63 printf("BFI TAF=%u\n", taf);
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64 break;
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65 case 0xD0:
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66 bfi = 0;
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67 fputs("FR", stdout);
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68 gsm_explode(dec_state, frame, fr_params);
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69 n = 0;
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70 for (i = 0; i < 8; i++)
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71 printf(" %u", fr_params[n++]);
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72 putchar('\n');
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73 for (i = 0; i < 4; i++) {
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74 putchar(' ');
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75 for (j = 0; j < 17; j++)
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76 printf(" %u", fr_params[n++]);
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77 putchar('\n');
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78 }
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79 break;
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80 default:
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81 fprintf(stderr, "error: %s is not in FR codec format\n",
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82 argv[1]);
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83 exit(1);
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84 }
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85 if (bfi)
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86 gsmfr_preproc_bfi(pp_state, taf, frame);
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87 else
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88 gsmfr_preproc_good_frame(pp_state, frame);
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89 gsm_decode(dec_state, frame, pcm);
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90 samp_max = 0;
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91 for (i = 0; i < 160; i++) {
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92 if (pcm[i] >= 0)
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93 samp_abs = pcm[i];
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94 else
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95 samp_abs = -pcm[i];
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96 if (samp_abs > samp_max)
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97 samp_max = samp_abs;
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98 }
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99 printf(" MAX=%u\n", samp_max);
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100 }
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101 exit(0);
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102 }