FreeCalypso > hg > gsm-codec-lib

comparison efrtest/decode-r.c @ 154:01ce75ea1c8e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gsmefr-decode-r utility put together
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 14 Dec 2022 23:18:18 +0000
parents efrtest/decode.c@d5bab777865a
children
comparison
equal deleted inserted replaced
153:14b627682458 154:01ce75ea1c8e
1 /*
2 * gsmefr-decode-r is like gsmefr-decode, but writes the decoded PCM
3 * output in our "robe" format instead of WAV.
4 */
5
6 #include <stdio.h>
7 #include <stdint.h>
8 #include <stdlib.h>
9 #include "../libgsmefr/gsm_efr.h"
10 #include "../libtest/binreader.h"
11 #include "../libtest/robewrite.h"
12
13 main(argc, argv)
14 char **argv;
15 {
16 FILE *binf, *outf;
17 struct EFR_decoder_state *state;
18 uint8_t frame[BINFILE_MAX_FRAME];
19 int16_t pcm[160];
20 int rc, bfi, taf;
21
22 if (argc != 3) {
23 fprintf(stderr, "usage: %s input.gsmx output.robe\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 outf = fopen(argv[2], "w");
32 if (!outf) {
33 perror(argv[2]);
34 exit(1);
35 }
36 state = EFR_decoder_create();
37 if (!state) {
38 perror("EFR_decoder_create()");
39 exit(1);
40 }
41 for (;;) {
42 rc = binfile_read_frame(binf, frame);
43 if (rc < 0) {
44 fprintf(stderr, "error: garbage in %s\n", argv[1]);
45 exit(1);
46 }
47 if (!rc)
48 break;
49 if (frame[0] == 0xBF) {
50 bfi = 1;
51 taf = frame[1] & 1;
52 } else if ((frame[0] & 0xF0) == 0xC0)
53 bfi = 0;
54 else {
55 fprintf(stderr,
56 "error: %s is not in EFR codec format\n",
57 argv[1]);
58 exit(1);
59 }
60 if (bfi)
61 EFR_decode_bfi_nodata(state, taf, pcm);
62 else
63 EFR_decode_frame(state, frame, 0, 0, pcm);
64 write_pcm_to_robe(outf, pcm);
65 }
66 fclose(outf);
67 exit(0);
68 }