FreeCalypso > hg > gsm-net-reveng

annotate trau-decode/parse-new8.c @ 115:62b3b916c0a4 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
trau-decode: add inst-progs list
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 22 Dec 2025 08:37:22 +0000
parents 4ff5c798c75d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * This program reads a 64 kbit/s timeslot recording file, examines one
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
3 * of the eight 8 kbit/s subslots (selected), looks for all possible sync
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
4 * patterns (classic HR and TRAU-AMR-8k), and decodes whatever it finds.
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 */
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
7 #include <sys/types.h>
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
8 #include <sys/file.h>
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
9 #include <sys/stat.h>
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <stdio.h>
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include <stdint.h>
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 #include <stdlib.h>
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 #include <string.h>
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 #include <strings.h>
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
16 static uint8_t *filebuf;
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
17 static unsigned total_size;
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 static void
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
20 read_ts_file(filename, subslot_arg)
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
21 char *filename, *subslot_arg;
2
b2ef2c80fef1 trau-parse: add FR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 1
diff changeset
22 {
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
23 FILE *inf;
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
24 struct stat st;
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
25 int subslot, right_shift;
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
26 unsigned n;
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
27 uint8_t *dp;
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
28 int b;
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
30 inf = fopen(filename, "r");
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
31 if (!inf) {
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
32 perror(filename);
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
33 exit(1);
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
34 }
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
35 fstat(fileno(inf), &st);
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
36 if (!S_ISREG(st.st_mode)) {
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
37 fprintf(stderr, "error: %s is not a regular file\n", filename);
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
38 exit(1);
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
39 }
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
40 total_size = st.st_size;
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
41 if (total_size < 160) {
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
42 fprintf(stderr, "error: %s is too short\n", filename);
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
43 exit(1);
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 }
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
45 filebuf = malloc(total_size);
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
46 if (!filebuf) {
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
47 perror("malloc of file size");
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
48 exit(1);
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
49 }
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
50 subslot = atoi(subslot_arg);
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
51 if (subslot < 0 || subslot > 7) {
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
52 fprintf(stderr, "error: invalid subslot argument\n");
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
53 exit(1);
2
b2ef2c80fef1 trau-parse: add FR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 1
diff changeset
54 }
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
55 right_shift = 7 - subslot;
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
56 dp = filebuf;
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
57 for (n = 0; n < total_size; n++) {
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
58 b = getc(inf);
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
59 if (b < 0) {
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
60 fprintf(stderr,
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
61 "error: getc() returned EOF contrary to st_size\n");
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
62 exit(1);
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
63 }
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
64 *dp++ = (b >> right_shift) & 1;
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
65 }
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
66 fclose(inf);
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 }
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 static int
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
70 is_classic_hr(cand)
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
71 uint8_t *cand;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
72 {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
73 unsigned n;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
74
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
75 for (n = 0; n < 8; n++) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
76 if (cand[n])
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
77 return 0;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
78 }
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
79 if (!cand[8])
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
80 return 0;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
81 if (cand[16])
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
82 return 0;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
83 if (!cand[17])
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
84 return 0;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
85 for (n = 3; n < 20; n++) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
86 if (!cand[n * 8])
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
87 return 0;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
88 }
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
89 return 1;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
90 }
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
91
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
92 static int
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
93 check_sync(pos, cont)
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
94 unsigned pos;
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95 {
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
96 uint8_t *cand = filebuf + pos;
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
98 if (is_classic_hr(cand))
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
99 return 1;
106
028307356ba9 trau-decode: new program trau-amr8-dump
Mychaela Falconia <falcon@freecalypso.org>
parents: 96
diff changeset
100 if (is_amr_low(cand))
028307356ba9 trau-decode: new program trau-amr8-dump
Mychaela Falconia <falcon@freecalypso.org>
parents: 96
diff changeset
101 return 1;
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
102 if (!cont)
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
103 return 0;
106
028307356ba9 trau-decode: new program trau-amr8-dump
Mychaela Falconia <falcon@freecalypso.org>
parents: 96
diff changeset
104 if (is_amr_67(cand))
028307356ba9 trau-decode: new program trau-amr8-dump
Mychaela Falconia <falcon@freecalypso.org>
parents: 96
diff changeset
105 return 1;
028307356ba9 trau-decode: new program trau-amr8-dump
Mychaela Falconia <falcon@freecalypso.org>
parents: 96
diff changeset
106 if (is_amr_74(cand))
028307356ba9 trau-decode: new program trau-amr8-dump
Mychaela Falconia <falcon@freecalypso.org>
parents: 96
diff changeset
107 return 1;
028307356ba9 trau-decode: new program trau-amr8-dump
Mychaela Falconia <falcon@freecalypso.org>
parents: 96
diff changeset
108 return 0;
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
109 }
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
110
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
111 static void
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
112 dump_raw_nibbles(bits, num_bits)
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
113 uint8_t *bits;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
114 unsigned num_bits;
73
06f241846c67 trau-hr-dump: add -r option for raw frame output
Mychaela Falconia <falcon@freecalypso.org>
parents: 42
diff changeset
115 {
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
116 uint8_t *sp = bits;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
117 unsigned remain = num_bits;
73
06f241846c67 trau-hr-dump: add -r option for raw frame output
Mychaela Falconia <falcon@freecalypso.org>
parents: 42
diff changeset
118
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
119 if (remain >= 4) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
120 while (remain >= 4) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
121 printf("%x", (sp[0] << 3) | (sp[1] << 2) |
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
122 (sp[2] << 1) | sp[3]);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
123 sp += 4;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
124 remain -= 4;
73
06f241846c67 trau-hr-dump: add -r option for raw frame output
Mychaela Falconia <falcon@freecalypso.org>
parents: 42
diff changeset
125 }
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
126 putchar('\n');
73
06f241846c67 trau-hr-dump: add -r option for raw frame output
Mychaela Falconia <falcon@freecalypso.org>
parents: 42
diff changeset
127 }
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
128 if (remain) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
129 fputs("dribble ", stdout);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
130 while (remain) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
131 printf("%u", *sp++);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
132 remain--;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
133 }
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
134 putchar('\n');
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
135 }
73
06f241846c67 trau-hr-dump: add -r option for raw frame output
Mychaela Falconia <falcon@freecalypso.org>
parents: 42
diff changeset
136 }
06f241846c67 trau-hr-dump: add -r option for raw frame output
Mychaela Falconia <falcon@freecalypso.org>
parents: 42
diff changeset
137
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
138 static int
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
139 process_frame(pos)
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
140 unsigned pos;
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 {
74
e78c6b1ecb91 trau-decode: refactor trau-hr-dump
Mychaela Falconia <falcon@freecalypso.org>
parents: 73
diff changeset
142 uint8_t *frame = filebuf + pos;
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
143
28
9bcdb091c24d trau-decode: new program trau-hr-dump
Mychaela Falconia <falcon@freecalypso.org>
parents: 27
diff changeset
144 printf("Frame at 0x%x:\n", pos);
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
145 dump_raw_nibbles(frame, 160);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
146 if (is_classic_hr(frame))
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
147 return print_gsmhr_frame(frame);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
148 else
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
149 return print_amr8_frame(frame);
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 }
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 static void
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
153 process_filebuf()
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 {
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
155 unsigned p, nf_pos = 0, nf_accum = 0;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
156 int match, num_t_bits;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
157 int in_sync = 0;
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
158
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
159 for (p = 0; p < total_size; ) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
160 if ((total_size - p) >= 160)
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
161 match = check_sync(p, in_sync);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
162 else
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
163 match = 0;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
164 if (match) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
165 if (nf_accum) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
166 printf("Non-frame at 0x%x:\n", nf_pos);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
167 dump_raw_nibbles(filebuf + nf_pos, nf_accum);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
168 }
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
169 num_t_bits = process_frame(p);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
170 if (num_t_bits == 2 && !filebuf[p+158] &&
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
171 !filebuf[p+159]) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
172 puts("advance of 250 us");
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
173 p += 158;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
174 } else if (num_t_bits == 2 && filebuf[p+158] &&
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
175 !filebuf[p+159]) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
176 puts("advance of 125 us");
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
177 p += 159;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
178 } else if (num_t_bits == 1 && !filebuf[p+159]) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
179 puts("advance of 125 us");
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
180 p += 159;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
181 } else
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
182 p += 160;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
183 nf_pos = p;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
184 nf_accum = 0;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
185 in_sync = 1;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
186 } else {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
187 p++;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
188 nf_accum++;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
189 if (nf_accum >= 320) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
190 printf("Non-frame at 0x%x:\n", nf_pos);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
191 dump_raw_nibbles(filebuf + nf_pos, nf_accum);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
192 nf_pos = p;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
193 nf_accum = 0;
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
194 }
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
195 in_sync = 0;
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 }
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
197 }
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
198 if (nf_accum) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
199 printf("Non-frame at 0x%x:\n", nf_pos);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
200 dump_raw_nibbles(filebuf + nf_pos, nf_accum);
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 }
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 }
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 main(argc, argv)
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 char **argv;
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 {
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
207 if (argc != 3) {
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
208 fprintf(stderr, "usage: %s binfile subslot\n", argv[0]);
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
209 exit(1);
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 }
114
4ff5c798c75d trau-decode: new program trau-parse-n8
Mychaela Falconia <falcon@freecalypso.org>
parents: 106
diff changeset
211 read_ts_file(argv[1], argv[2]);
27
f508dacf2cf9 trau-decode: new programs dump-1bit and trau-sync8
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
212 process_filebuf();
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 exit(0);
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 }