FreeCalypso > hg > gsm-codec-lib

comparison efrtest/decode-tw5-r.c @ 548:583dc4cbee95

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
efrtest: new program gsmefr-decode-tw5-r
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 04 Oct 2024 20:40:42 +0000
parents frtest/decode-tw5-r.c@4d596bfdf8d9
children
comparison
equal deleted inserted replaced
547:f9535c1fbf70 548:583dc4cbee95
1 /*
2 * This file is the main module for gsmefr-decode-tw5-r utility. It is just
3 * like the original gsmefr-decode-r, but reads the GSM-EFR speech recording
4 * from TW-TS-005 Annex A hexadecimal format instead of the old gsmx
5 * binary format. The output format is robe, as indicated by the -r suffix.
6 */
7
8 #include <stdio.h>
9 #include <stdint.h>
10 #include <stdlib.h>
11 #include "../libgsmefr/gsm_efr.h"
12 #include "../libtest/tw5reader.h"
13 #include "../libtest/robewrite.h"
14
15 main(argc, argv)
16 char **argv;
17 {
18 FILE *hexf, *outf;
19 unsigned lineno;
20 struct EFR_decoder_state *state;
21 uint8_t frame[TWTS005_MAX_FRAME];
22 unsigned frame_len;
23 int16_t pcm[160];
24 int rc;
25
26 if (argc != 3) {
27 fprintf(stderr, "usage: %s input.hex output.robe\n", argv[0]);
28 exit(1);
29 }
30 hexf = fopen(argv[1], "r");
31 if (!hexf) {
32 perror(argv[1]);
33 exit(1);
34 }
35 lineno = 0;
36 outf = fopen(argv[2], "w");
37 if (!outf) {
38 perror(argv[2]);
39 exit(1);
40 }
41 state = EFR_decoder_create();
42 if (!state) {
43 perror("EFR_decoder_create()");
44 exit(1);
45 }
46 for (;;) {
47 rc = twts005_read_frame(hexf, &lineno, frame, &frame_len);
48 if (rc < 0) {
49 fprintf(stderr, "%s line %u: not valid TW-TS-005\n",
50 argv[1], lineno);
51 exit(1);
52 }
53 if (!rc)
54 break;
55 rc = EFR_decode_rtp(state, frame, frame_len, pcm);
56 if (rc < 0) {
57 fprintf(stderr,
58 "%s line %u: not a valid GSM-EFR frame\n",
59 argv[1], lineno);
60 exit(1);
61 }
62 write_pcm_to_robe(outf, pcm);
63 }
64 fclose(outf);
65 exit(0);
66 }