1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/* (C) 2017 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
*
* Author: Pau Espin Pedrol <pespin@sysmocom.de>
*
* SPDX-License-Identifier: GPL-2.0+
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <unistd.h>
#include <stdint.h>
#include <inttypes.h>
#include <string.h>
#include <signal.h>
#include <arpa/inet.h>
#include <sys/time.h>
#include <osmocom/core/utils.h>
#include <osmocom/netif/amr.h>
/* Some octet aligned single-payload AMR frames on different rates */
char *oa_amr_samples[] = {
"703c22f979890338540179209572624a0f8535871c2f7039cbf926b7e4425b6ef0",
"703c2e671f3b1b0810412d5adae61e2b2a319885c6ced4e909b4eeaa2ea0f0cd80",
"703cf8fc77356c948141686cda34d35220db719e36a359d86b64420dc64b563850",
"60344e300c0e6251342c2ae51fd8a698a945488d16c98922726f3e50",
"60341fc722c7880328a9c280030bc9755c3ef519f80000295323e000",
"60342c338655c00008efba03592419adf62478a79278b3e2d68ab0f0",
"502c98ab841e491ff7a1a555016a32a3c7f913210630",
"502cc5459a0d200e7097c4dfe86ec8d27f1756d776f0",
"502c42b332081813d7e916e7aa5e80d7fde812b8c080",
"40240343e959c79bacd20c77501054880a718db200",
"4024172c53401e39115ceecd12606df5689bdd0ca0",
"4024f871cf48801ec427f0fc3f7318898622062200",
"20141fd4c02667c742b164aef659ffe708",
"2014197e10ead7b250bccbbf3b81887c64",
"2014e959f35fdfe5e9667ffbc088818088",
"100c4e9ba850e30d5d53d04de41e7c",
"100c6c18e7b7fff53aeb055e7d1c54",
"100c1fb967f7f1fdf547bf2e61c060",
"a038ff00ff00ff00ff00ff00ff00ff00ff00ff00ff00ff00ff00ff00ff00ff00fc", /* test pattern */
"END",
};
/* Some bandwith efficient single-payload AMR frames */
char *bwe_amr_samples[] = {
"f4495c7cda8f80",
"f44aaa6c969780",
"f3d09c20e32da600c025a72e0a9b360386e40f87e19282094adc1a11e397d1d4",
"f3d39a49a09e7a802852e297e8c9246aadf5a45928bfc27177fed8404d97d3b8",
"f3c2155b65131c68682079fab4810911200003b360ae0446000025f11e539dd0",
"f3c381bc7061c9f8507f6029de6115c16e5fa470c243b21b6e35dbb48bd84c00",
"a7bfc03fc03fc03fc03fc03fc03fc03fc03fc03fc03fc03fc03fc03fc03fc03f", /* test pattern */
"END",
};
void dump_bits(uint8_t *buf, int len)
{
unsigned int i;
if (len <= 0) {
printf("(no data)");
return;
}
for (i = 0; i < (len * 8); i++)
printf("%u", (buf[i / 8] >> (7 - (i % 8))) & 1);
return;
}
void osmo_amr_oa_to_bwe_test(void)
{
uint8_t buf[256];
unsigned int i = 0;
int len;
int rc;
printf("\n\n");
printf("Testing conversion from octet-aligned to bw-efficient:\n");
while (1) {
if (strcmp(oa_amr_samples[i], "END") == 0)
return;
printf("\n");
printf("Sample No.: %i\n", i);
len = strlen(oa_amr_samples[i]);
len = osmo_hexparse(oa_amr_samples[i], buf, sizeof(buf));
OSMO_ASSERT(len > 0);
printf(" octet aligned: %s\n", osmo_hexdump_nospc(buf, len));
printf(" ");
dump_bits(buf, len);
printf("\n");
rc = osmo_amr_oa_to_bwe(buf, len);
printf(" bw-efficient: %s\n", osmo_hexdump_nospc(buf, rc));
printf(" ");
dump_bits(buf, rc);
printf("\n");
printf(" rc: %i\n", rc);
if (rc > 0) {
OSMO_ASSERT(rc == len - 1);
OSMO_ASSERT(buf[len - 1] == 0x00);
}
i++;
}
}
void osmo_amr_bwe_to_oa_test(void)
{
uint8_t buf[256];
unsigned int i = 0;
int len;
int rc;
printf("\n\n");
printf("Testing conversion from bw-efficient to octet-aligned:\n");
while (1) {
if (strcmp(bwe_amr_samples[i], "END") == 0)
return;
printf("\n");
printf("Sample No.: %i\n", i);
len = strlen(bwe_amr_samples[i]);
len = osmo_hexparse(bwe_amr_samples[i], buf, sizeof(buf));
OSMO_ASSERT(len > 0);
printf(" bw-efficient: %s\n", osmo_hexdump_nospc(buf, len));
printf(" ");
dump_bits(buf, len);
printf("\n");
rc = osmo_amr_bwe_to_oa(buf, len, sizeof(buf));
printf(" octet aligned: %s\n", osmo_hexdump_nospc(buf, rc));
printf(" ");
dump_bits(buf, rc);
printf("\n");
printf(" rc: %i\n", rc);
OSMO_ASSERT(rc == len + 1);
i++;
}
}
void osmo_amr_oa_to_bwe_and_inverse_test(void)
{
uint8_t buf[256];
uint8_t buf_chk[256];
unsigned int i = 0;
int len;
int rc;
printf("\n\n");
printf
("Testing conversion from octet-aligned to bw-efficient and inverse:\n");
while (1) {
if (strcmp(oa_amr_samples[i], "END") == 0)
return;
printf("Sample No.: %i...\n", i);
len = strlen(oa_amr_samples[i]);
len = osmo_hexparse(oa_amr_samples[i], buf, sizeof(buf));
OSMO_ASSERT(len > 0);
memcpy(buf_chk, buf, sizeof(buf));
rc = osmo_amr_oa_to_bwe(buf, len);
OSMO_ASSERT(rc > 0);
rc = osmo_amr_bwe_to_oa(buf, rc, sizeof(buf));
OSMO_ASSERT(memcmp(buf, buf_chk, len) == 0);
i++;
}
}
void osmo_amr_is_oa_test(void)
{
uint8_t buf[256];
unsigned int i;
int len;
bool is_oc;
printf("\n\n");
printf("Testing detection of octet-aligned mode payloads:\n");
i = 0;
while (1) {
if (strcmp(oa_amr_samples[i], "END") == 0)
break;
printf("Sample No.: %i ==>", i);
len = strlen(oa_amr_samples[i]);
len = osmo_hexparse(oa_amr_samples[i], buf, sizeof(buf));
OSMO_ASSERT(len > 0);
is_oc = osmo_amr_is_oa(buf, len);
if (is_oc)
printf("octet aligned\n");
else
printf("bandwith efficient\n");
i++;
}
i = 0;
while (1) {
if (strcmp(bwe_amr_samples[i], "END") == 0)
break;
printf("Sample No.: %i ==>", i);
len = strlen(oa_amr_samples[i]);
len = osmo_hexparse(bwe_amr_samples[i], buf, sizeof(buf));
OSMO_ASSERT(len > 0);
is_oc = osmo_amr_is_oa(buf, len);
if (is_oc)
printf("octet aligned\n");
else
printf("bandwith efficient\n");
i++;
}
}
int main(int argc, char **argv)
{
osmo_amr_oa_to_bwe_test();
osmo_amr_bwe_to_oa_test();
osmo_amr_oa_to_bwe_and_inverse_test();
osmo_amr_is_oa_test();
fprintf(stdout, "OK: Test passed\n");
return EXIT_SUCCESS;
}
|
