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comparison hrutil/etsi-dec.c @ 606:bc57dcfa91d0

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hrutil: new program gsmhr-etsi-dec
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 04 Dec 2025 21:36:51 +0000
parents efrtest/etsi-dec.c@9f354d2aea13
children
comparison
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605:63f774192906 606:bc57dcfa91d0
1 /*
2 * gsmhr-etsi-dec is a test program for our GSM-HR decoder: it reads ETSI's
3 * .dec format as input and writes raw 16-bit PCM (same as ETSI's *.out)
4 * as output, allowing our decoder to be tested with ETSI's official test
5 * sequences.
6 *
7 * ETSI input and output files are read and written in the local machine's
8 * native byte order by default; -b and -l options can be used to force
9 * BE or LE, respectively.
10 */
11
12 #include <stdio.h>
13 #include <stdint.h>
14 #include <stdlib.h>
15 #include <string.h>
16 #include <strings.h>
17 #include <unistd.h>
18 #include "../libgsmhr1/tw_gsmhr.h"
19 #include "../libtest/local_endian.h"
20
21 main(argc, argv)
22 char **argv;
23 {
24 char *infname, *outfname;
25 FILE *inf, *outf;
26 int opt, rc, big_endian;
27 struct gsmhr_decoder_state *state;
28 unsigned frame_no;
29 int16_t params[GSMHR_NUM_PARAMS_DEC];
30 int16_t pcm[160];
31 extern int optind;
32
33 big_endian = is_native_big_endian();
34 while ((opt = getopt(argc, argv, "bl")) != EOF) {
35 switch (opt) {
36 case 'b':
37 big_endian = 1;
38 continue;
39 case 'l':
40 big_endian = 0;
41 continue;
42 default:
43 usage:
44 fprintf(stderr,
45 "usage: %s [-b|-l] input.dec output.out\n",
46 argv[0]);
47 exit(1);
48 }
49 }
50 if (argc != optind + 2)
51 goto usage;
52 infname = argv[optind];
53 outfname = argv[optind+1];
54
55 inf = fopen(infname, "r");
56 if (!inf) {
57 perror(infname);
58 exit(1);
59 }
60 outf = fopen(outfname, "w");
61 if (!outf) {
62 perror(outfname);
63 exit(1);
64 }
65 state = gsmhr_decoder_create();
66 if (!state) {
67 perror("gsmhr_decoder_create()");
68 exit(1);
69 }
70 for (frame_no = 0; ; frame_no++) {
71 rc = read_dec_frame(inf, big_endian, params, infname, frame_no);
72 if (!rc)
73 break;
74 gsmhr_decode_frame(state, params, pcm);
75 if (big_endian)
76 write_pcm_be(outf, pcm);
77 else
78 write_pcm_le(outf, pcm);
79 }
80 fclose(outf);
81 exit(0);
82 }