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comparison miscutil/gsmrec-dump.c @ 23:baadb1cb744d

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new debug utility gsmrec-dump
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 20 Nov 2022 08:05:32 +0000
parents
children edd2e20e7090
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22:3db7af1249cb 23:baadb1cb744d
1 /*
2 * This program reads a binary file in our extended-libgsm format
3 * and dumps all frames in human-readable form.
4 */
5
6 #include <stdio.h>
7 #include <stdint.h>
8 #include <stdlib.h>
9 #include <gsm.h>
10 #include "../libtest/binreader.h"
11
12 main(argc, argv)
13 char **argv;
14 {
15 FILE *binf;
16 gsm dummy_state;
17 unsigned frame_index;
18 uint8_t frame[BINFILE_MAX_FRAME];
19 gsm_signal fr_params[76];
20 int rc, i, j, n;
21
22 if (argc != 2) {
23 fprintf(stderr, "usage: %s bin-stream-file\n", argv[0]);
24 exit(1);
25 }
26 binf = fopen(argv[1], "r");
27 if (!binf) {
28 perror(argv[1]);
29 exit(1);
30 }
31 dummy_state = gsm_create();
32 if (!dummy_state) {
33 fprintf(stderr, "gsm_create() failed!\n");
34 exit(1);
35 }
36 for (frame_index = 0; ; frame_index++) {
37 rc = binfile_read_frame(binf, frame);
38 if (rc < 0) {
39 fprintf(stderr, "error: garbage in %s\n", argv[1]);
40 exit(1);
41 }
42 if (!rc)
43 break;
44 printf("#%u: ", frame_index);
45 switch (frame[0] & 0xF0) {
46 case 0xB0:
47 printf("BFI TAF=%u\n", frame[1] & 1);
48 break;
49 case 0xC0:
50 puts("EFR (decoding not implemented)");
51 break;
52 case 0xD0:
53 fputs("FR", stdout);
54 gsm_explode(dummy_state, frame, fr_params);
55 n = 0;
56 for (i = 0; i < 8; i++)
57 printf(" %u", fr_params[n++]);
58 putchar('\n');
59 for (i = 0; i < 4; i++) {
60 putchar(' ');
61 for (j = 0; j < 17; j++)
62 printf(" %u", fr_params[n++]);
63 putchar('\n');
64 }
65 break;
66 }
67 }
68 exit(0);
69 }