FreeCalypso > hg > freecalypso-tools

annotate miscutil/fc-fr2tch.c @ 224:146f93bd5112

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
CHANGES: documented the addition of keepalive support to rvinterf
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 20 May 2017 22:13:03 +0000
parents 7eaa3307e5df
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
5
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * This utility converts a GSM 06.10 speech recording from the format that is
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 * commonly accepted as standard in the Unix/Linux world (libgsm format) into
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * hex strings of TCH bits to be fed to the GSM 05.03 channel encoder by way
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * of a TI Calypso GSM device, a FreeCalypso GSM firmware version with the
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * TCH rerouting feature, and fc-shell's tch play command.
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 */
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <sys/types.h>
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <stdio.h>
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include <stdlib.h>
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 main(argc, argv)
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 char **argv;
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 {
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 FILE *inf, *outf;
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 u_char libgsm_bytes[33], tidsp_bytes[33];
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 int cc, i, gotsome = 0;
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 if (argc != 3) {
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 fprintf(stderr, "usage: %s infile outfile\n", argv[0]);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 exit(1);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 }
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 inf = fopen(argv[1], "r");
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 if (!inf) {
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 perror(argv[1]);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 exit(1);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 }
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 outf = fopen(argv[2], "w");
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 if (!outf) {
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 perror(argv[2]);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 exit(1);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 }
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 for (;;) {
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 cc = fread(libgsm_bytes, 1, 33, inf);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 if (cc < 33)
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 break;
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 if ((libgsm_bytes[0] & 0xF0) != 0xD0) {
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 invalid: fprintf(stderr, "error: %s is not in libgsm format\n",
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 argv[1]);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 exit(1);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 }
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 gsm0610_libgsm_to_tidsp(libgsm_bytes, tidsp_bytes);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 for (i = 0; i < 33; i++)
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 fprintf(outf, "%02X", tidsp_bytes[i]);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 putc('\n', outf);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 gotsome = 1;
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 }
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 fclose(outf);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 if (cc) {
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 if (gotsome)
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 fprintf(stderr,
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 "warning: extra non-33 bytes at the end of %s\n",
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 argv[1]);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 else
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 goto invalid;
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 }
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 exit(0);
7eaa3307e5df fc-fr2tch utility written, added under miscutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 }