FreeCalypso > hg > gsm-codec-lib

annotate efrtest/etsi-bit-rd.c @ 497:a1599eaf51f9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
top Makefile: add libgsmhr1
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 18 Jun 2024 23:57:26 +0000
parents 8ed838709897
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 /*
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
2 * In this module we implement utility functions for reading ETSI *.cod
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
3 * and *.dec files 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>
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <string.h>
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <strings.h>
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include "../libgsmefr/gsm_efr.h"
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
12 #include "etsi.h"
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
14 read_etsi_bits(inf, big_endian, bitvec, nwords, filename_for_errs)
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 FILE *inf;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 uint8_t *bitvec;
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
17 unsigned nwords;
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 char *filename_for_errs;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 {
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 uint8_t file_bytes[ETSI_DEC_NWORDS * 2], *sp;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 int cc;
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
22 unsigned n, upper;
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
24 cc = fread(file_bytes, 2, nwords, inf);
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 if (cc == 0)
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 return 0;
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
27 if (cc != nwords) {
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 fprintf(stderr, "error: short read from %s\n",
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 filename_for_errs);
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 exit(1);
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 }
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 sp = file_bytes;
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
33 for (n = 0; n < nwords; n++) {
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
34 if (big_endian) {
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
35 upper = sp[0];
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
36 bitvec[n] = sp[1];
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
37 } else {
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
38 bitvec[n] = sp[0];
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
39 upper = sp[1];
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
40 }
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
41 if (upper) {
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 fprintf(stderr,
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
43 "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
44 filename_for_errs, big_endian ? "BE" : "LE");
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 exit(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 sp += 2;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 }
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 return 1;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 }
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51
145
8ed838709897 efrtest: ETSI bit reading factored out of gsmefr-etsi-dec
Mychaela Falconia <falcon@freecalypso.org>
parents: 97
diff changeset
52 void
96
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 bits2frame(input_bits, frame, filename_for_errs, frame_no)
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 uint8_t *input_bits, *frame;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 char *filename_for_errs;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 unsigned frame_no;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 {
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 uint8_t bits[248], *sp, *dp;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 unsigned nb, byte, mask;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 bits[0] = 1;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 bits[1] = 1;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 bits[2] = 0;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 bits[3] = 0;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 bcopy(input_bits, bits + 4, 244);
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 sp = bits;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 dp = frame;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 for (nb = 0; nb < EFR_RTP_FRAME_LEN; nb++) {
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 byte = 0;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 for (mask = 0x80; mask; mask >>= 1) {
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 if (*sp > 1) {
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72 fprintf(stderr,
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 "error in %s frame #%u: data bit > 1\n",
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 filename_for_errs, frame_no);
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75 exit(1);
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 }
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 if (*sp)
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
78 byte |= mask;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
79 sp++;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
80 }
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
81 *dp++ = byte;
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
82 }
9cf1355bc071 gsmefr-etsi-dec test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
83 }