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
|
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/encryption_info.h"
#include <stdio.h>
#include <string.h>
#include "libavutil/avassert.h"
#include "libavutil/mem.h"
static const AVSubsampleEncryptionInfo test_subsamples[] = {{1, 2}, {3, 4}, {5, 6}, {7, 8}};
static const size_t test_subsample_count = sizeof(test_subsamples) / sizeof(test_subsamples[0]);
static const uint8_t test_iv[] = {0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18};
static const uint8_t test_key_id[] = {0x21, 0x22, 0x23, 0x24};
static const uint8_t test_key_id_2[] = {0x31, 0x32, 0x33, 0x34};
static const uint8_t test_system_id[] = {0x41, 0x42, 0x43};
static const uint8_t test_data[] = {0x51, 0x52};
static int compare_encryption_info(const AVEncryptionInfo *a, const AVEncryptionInfo *b) {
if (!a || !b || a->scheme != b->scheme || a->crypt_byte_block != b->crypt_byte_block ||
a->skip_byte_block != b->skip_byte_block || a->key_id_size != b->key_id_size ||
a->iv_size != b->iv_size || a->subsample_count != b->subsample_count)
return 1;
if (memcmp(a->key_id, b->key_id, a->key_id_size) != 0 ||
memcmp(a->iv, b->iv, a->iv_size) != 0 ||
memcmp(a->subsamples, b->subsamples, a->subsample_count * sizeof(a->subsamples[0])))
return 1;
return 0;
}
static int compare_encryption_init_info(const AVEncryptionInitInfo *a, const AVEncryptionInitInfo *b) {
if (!a || !b || a->system_id_size != b->system_id_size ||
a->num_key_ids != b->num_key_ids || a->key_id_size != b->key_id_size ||
a->data_size != b->data_size)
return 1;
if (memcmp(a->system_id, b->system_id, a->system_id_size) != 0 ||
memcmp(a->data, b->data, a->data_size) != 0)
return 1;
for (uint32_t i = 0; i < a->num_key_ids; i++) {
if (memcmp(a->key_ids[i], b->key_ids[i], a->key_id_size) != 0)
return 1;
}
if (a->next || b->next) {
if (!a->next || !b->next)
return 1;
if (compare_encryption_init_info(a->next, b->next) != 0)
return 1;
}
return 0;
}
static void run_encryption_info_test(void)
{
AVEncryptionInfo *info, *copy;
uint8_t *side_data;
size_t side_data_size;
info = av_encryption_info_alloc(test_subsample_count, sizeof(test_key_id), sizeof(test_iv));
av_assert0(info);
av_assert0(info->key_id);
av_assert0(info->key_id_size == sizeof(test_key_id));
av_assert0(info->iv);
av_assert0(info->iv_size == sizeof(test_iv));
av_assert0(info->subsamples);
av_assert0(info->subsample_count == test_subsample_count);
info->scheme = 1234;
info->crypt_byte_block = 333;
info->skip_byte_block = 444;
memcpy(info->key_id, test_key_id, sizeof(test_key_id));
memcpy(info->iv, test_iv, sizeof(test_iv));
memcpy(info->subsamples, test_subsamples, sizeof(test_subsamples));
copy = av_encryption_info_clone(info);
av_assert0(copy);
av_assert0(copy != info);
av_assert0(compare_encryption_info(info, copy) == 0);
av_encryption_info_free(copy);
side_data = av_encryption_info_add_side_data(info, &side_data_size);
av_assert0(side_data);
av_assert0(side_data_size > 0);
copy = av_encryption_info_get_side_data(side_data, side_data_size);
av_assert0(copy);
av_assert0(copy != info);
av_assert0(compare_encryption_info(info, copy) == 0);
av_encryption_info_free(copy);
av_free(side_data);
av_encryption_info_free(info);
}
static AVEncryptionInitInfo *create_init_info(void)
{
AVEncryptionInitInfo *info;
info = av_encryption_init_info_alloc(sizeof(test_system_id), 2, sizeof(test_key_id), sizeof(test_data));
av_assert0(info);
av_assert0(info->system_id);
av_assert0(info->system_id_size == sizeof(test_system_id));
av_assert0(info->key_ids);
av_assert0(info->num_key_ids == 2);
av_assert0(info->key_id_size == sizeof(test_key_id));
av_assert0(info->key_ids[0]);
av_assert0(info->key_ids[1]);
av_assert0(info->data);
av_assert0(info->data_size == sizeof(test_data));
av_assert0(!info->next);
memcpy(info->system_id, test_system_id, sizeof(test_system_id));
memcpy(info->key_ids[0], test_key_id, sizeof(test_key_id));
memcpy(info->key_ids[1], test_key_id_2, sizeof(test_key_id_2));
memcpy(info->data, test_data, sizeof(test_data));
return info;
}
static void run_encryption_init_info_test(void)
{
AVEncryptionInitInfo *info, *copy;
uint8_t *side_data;
size_t side_data_size;
info = create_init_info();
side_data = av_encryption_init_info_add_side_data(info, &side_data_size);
av_assert0(side_data);
av_assert0(side_data_size > 0);
copy = av_encryption_init_info_get_side_data(side_data, side_data_size);
av_assert0(copy);
av_assert0(compare_encryption_init_info(info, copy) == 0);
av_encryption_init_info_free(copy);
av_free(side_data);
// Make the first init info different from the second to test the correct order.
memset(info->system_id, 0, info->system_id_size);
info->next = create_init_info();
side_data = av_encryption_init_info_add_side_data(info, &side_data_size);
av_assert0(side_data);
copy = av_encryption_init_info_get_side_data(side_data, side_data_size);
av_assert0(copy);
av_assert0(compare_encryption_init_info(info, copy) == 0);
av_encryption_init_info_free(copy);
av_free(side_data);
av_encryption_init_info_free(info);
}
int main(int argc, char **argv)
{
run_encryption_info_test();
run_encryption_init_info_test();
return 0;
}
|
