FreeCalypso > hg > gsm-codec-lib

annotate dev/gsmfr-dhf.c @ 515:bb36ef735f25

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
hrutil: starting with gsmhr-cod-parse
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 30 Aug 2024 08:05:07 +0000
parents 37dc5c84bbe9
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
277
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
2 * This program is meant to be run only once by the developer - it
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
3 * generates RTP-packed form of the decoder homing frame for GSM-FR,
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
4 * as specified in more recent versions of GSM 06.10 spec.
1
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 */
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <stdio.h>
276
e4ca04586118 dev/gsm0611-silence-fr: rework to eliminate libgsm dependency
Mychaela Falconia <falcon@freecalypso.org>
parents: 25
diff changeset
8 #include <stdint.h>
1
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <stdlib.h>
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <string.h>
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include <strings.h>
276
e4ca04586118 dev/gsm0611-silence-fr: rework to eliminate libgsm dependency
Mychaela Falconia <falcon@freecalypso.org>
parents: 25
diff changeset
12
e4ca04586118 dev/gsm0611-silence-fr: rework to eliminate libgsm dependency
Mychaela Falconia <falcon@freecalypso.org>
parents: 25
diff changeset
13 extern void gsmfr_pack_to_rtp(const int16_t *params, uint8_t *frame);
1
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14
277
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
15 static const int16_t larc[8] = {9, 23, 15, 8, 7, 3, 3, 2};
1
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 main(argc, argv)
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 char **argv;
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 {
277
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
20 int16_t params[76], *pp;
276
e4ca04586118 dev/gsm0611-silence-fr: rework to eliminate libgsm dependency
Mychaela Falconia <falcon@freecalypso.org>
parents: 25
diff changeset
21 uint8_t frame[33];
277
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
22 unsigned m, n;
1
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 /* gather params */
277
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
25 bcopy(larc, params, sizeof(int16_t) * 8);
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
26 pp = params + 8;
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
27 for (m = 0; m < 4; m++) {
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
28 *pp++ = 40;
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
29 *pp++ = 0;
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
30 *pp++ = 0;
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
31 *pp++ = 0;
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
32 for (n = 0; n < 13; n++) {
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
33 if (m == 3 && n == 4)
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
34 *pp++ = 3;
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
35 else
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
36 *pp++ = 4;
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
37 }
37dc5c84bbe9 dev: generate RTP-packed GSM-FR DHF
Mychaela Falconia <falcon@freecalypso.org>
parents: 276
diff changeset
38 }
1
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 /* generate frame */
276
e4ca04586118 dev/gsm0611-silence-fr: rework to eliminate libgsm dependency
Mychaela Falconia <falcon@freecalypso.org>
parents: 25
diff changeset
40 gsmfr_pack_to_rtp(params, frame);
1
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 /* print the frame */
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 for (n = 0; n < 33; n++) {
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 printf("0x%02X,", frame[n]);
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 if (n == 4 || n == 11 || n == 18 || n == 25 || n == 32)
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 putchar('\n');
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 else
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 putchar(' ');
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 }
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 exit(0);
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 }