FreeCalypso > hg > gsm-codec-lib

annotate amrconv/cod-read.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 0beafaa0623f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
211
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
2 * In this module we implement utility functions for reading ETSI/3GPP
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
3 * *.cod files (AMR version) in either LE or BE format.
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 */
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <stdio.h>
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <stdint.h>
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <stdlib.h>
211
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
9 #include "amr_defs.h"
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10
211
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
11 read_cod_bits(inf, big_endian, bitvec, filename_for_errs)
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 FILE *inf;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 uint8_t *bitvec;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 char *filename_for_errs;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 {
211
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
16 uint8_t file_bytes[COD_FORMAT_NWORDS * 2], *sp;
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 int cc;
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
18 unsigned n, upper;
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19
211
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
20 cc = fread(file_bytes, 2, COD_FORMAT_NWORDS, inf);
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 if (cc == 0)
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 return 0;
211
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
23 if (cc != COD_FORMAT_NWORDS) {
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 fprintf(stderr, "error: short read from %s\n",
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 filename_for_errs);
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 exit(1);
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 }
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 sp = file_bytes;
211
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
29 for (n = 0; n < COD_FORMAT_NWORDS; n++) {
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
30 if (big_endian) {
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
31 upper = sp[0];
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
32 bitvec[n] = sp[1];
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
33 } else {
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
34 bitvec[n] = sp[0];
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
35 upper = sp[1];
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
36 }
212
0beafaa0623f amr-cod-parse: handle Mode=-1 in NO_DATA frames
Mychaela Falconia <falcon@freecalypso.org>
parents: 211
diff changeset
37 if (upper && (sp[0] != 0xFF || sp[1] != 0xFF)) {
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 fprintf(stderr,
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
39 "error in %s: non-zero in what should be %s upper byte\n",
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
40 filename_for_errs, big_endian ? "BE" : "LE");
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 exit(1);
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 }
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 sp += 2;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 }
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 return 1;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 }
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
48 void
211
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
49 preen_frame_bits(input_bits, nbits, filename_for_errs, frame_no)
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
50 uint8_t *input_bits;
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 char *filename_for_errs;
211
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
52 unsigned nbits, frame_no;
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 {
211
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
54 uint8_t *sp;
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
55 unsigned nb;
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56
211
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
57 sp = input_bits;
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
58 for (nb = 0; nb < nbits; nb++) {
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
59 if (*sp > 1) {
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
60 fprintf(stderr, "error in %s frame #%u: data bit > 1\n",
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
61 filename_for_errs, frame_no);
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
62 exit(1);
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 }
211
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents: 145
diff changeset
64 sp++;
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 }
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 }