FreeCalypso > hg > gsm-codec-lib

annotate miscutil/amrts-pcm8-compact.c @ 585:3c6bf0d26ee7 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
TW-TS-005 reader: fix maximum line length bug TW-TS-005 section 4.1 states: The maximum allowed length of each line is 80 characters, not including the OS-specific newline encoding. The implementation of this line length limit in the TW-TS-005 hex file reader function in the present suite was wrong, such that lines of the full maximum length could not be read. Fix it. Note that this bug affects comment lines too, not just actual RTP payloads. Neither Annex A nor Annex B features an RTP payload format that goes to the maximum of 40 bytes, but if a comment line goes to the maximum allowed length of 80 characters not including the terminating newline, the bug will be triggered, necessitating the present fix.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 25 Feb 2025 07:49:28 +0000
parents 7c50864deaff
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
469
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * The set of AMR test sequences shipped by 3GPP as TS 26.074 includes
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 * not only linear PCM (13-bit left-justified) and AMR-encoded files,
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * but also 8-bit PCM sequences in both A-law and mu-law. However,
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * those PCM8 sequences are shipped in a stupid and inconvenient format:
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * each 8-bit PCM sample is expanded to a 16-bit word, written in LE
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 * byte order. This utility converts a PCM8 test sequence file
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 * from this weird format into sane PCM8 format with one byte per sample.
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 * For this conversion, it does not matter whether the PCM8 test sequence
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * in question is A-law or mu-law.
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 */
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 #include <stdio.h>
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 #include <stdlib.h>
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 main(argc, argv)
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 char **argv;
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 {
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 FILE *inf, *outf;
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 int cdat, cpad;
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 if (argc != 3) {
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 fprintf(stderr, "usage: %s in-file out-file\n", argv[0]);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 exit(1);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 }
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 inf = fopen(argv[1], "r");
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 if (!inf) {
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 perror(argv[1]);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 exit(1);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 }
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 outf = fopen(argv[2], "w");
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 if (!outf) {
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 perror(argv[2]);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 exit(1);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 }
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 for (;;) {
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 cdat = getc(inf);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 if (cdat < 0)
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 break;
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 cpad = getc(inf);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 if (cpad < 0) {
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 fprintf(stderr, "error: %s has odd length\n", argv[1]);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 exit(1);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 }
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 if (cpad != 0) {
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 fprintf(stderr,
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 "error: presumed padding byte in %s is not 0\n",
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 argv[1]);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 exit(1);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 }
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 putc(cdat, outf);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 }
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 fclose(outf);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 exit(0);
7c50864deaff amrts-pcm8-compact program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 }