?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
More cr.ui.FocusRow simplifications
[chromium-blink-merge.git] / media / cdm / cenc_utils_unittest.cc
blobae9316e0ef09aa4f4154c4977f7bb8c8ebe081e5
1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "media/cdm/cenc_utils.h"
6
7 #include "base/logging.h"
8 #include "testing/gtest/include/gtest/gtest.h"
9
10 namespace media {
11
12 const uint8_t kKey1Data[] = {
13 0x7E, 0x57, 0x1D, 0x03, 0x7E, 0x57, 0x1D, 0x03,
14 0x7E, 0x57, 0x1D, 0x03, 0x7E, 0x57, 0x1D, 0x03
15 };
16 const uint8_t kKey2Data[] = {
17 0x7E, 0x57, 0x1D, 0x04, 0x7E, 0x57, 0x1D, 0x04,
18 0x7E, 0x57, 0x1D, 0x04, 0x7E, 0x57, 0x1D, 0x04,
19 };
20 const uint8_t kKey3Data[] = {
21 0x7E, 0x57, 0x1D, 0x04, 0x7E, 0x57, 0x1D, 0x05,
22 0x7E, 0x57, 0x1D, 0x04, 0x7E, 0x57, 0x1D, 0x05,
23 };
24 const uint8_t kKey4Data[] = {
25 0x7E, 0x57, 0x1D, 0x04, 0x7E, 0x57, 0x1D, 0x06,
26 0x7E, 0x57, 0x1D, 0x04, 0x7E, 0x57, 0x1D, 0x06,
27 };
28 const uint8_t kCommonSystemSystemId[] = {
29 0x10, 0x77, 0xEF, 0xEC, 0xC0, 0xB2, 0x4D, 0x02,
30 0xAC, 0xE3, 0x3C, 0x1E, 0x52, 0xE2, 0xFB, 0x4B
31 };
32
33 class CencUtilsTest : public testing::Test {
34 public:
35 CencUtilsTest()
36 : key1_(kKey1Data, kKey1Data + arraysize(kKey1Data)),
37 key2_(kKey2Data, kKey2Data + arraysize(kKey2Data)),
38 key3_(kKey3Data, kKey3Data + arraysize(kKey3Data)),
39 key4_(kKey4Data, kKey4Data + arraysize(kKey4Data)),
40 common_system_system_id_(
41 kCommonSystemSystemId,
42 kCommonSystemSystemId + arraysize(kCommonSystemSystemId)) {}
43
44 protected:
45 // Initialize the start of the 'pssh' box (up to key_count)
46 void InitializePSSHBox(std::vector<uint8_t>* box,
47 uint8_t size,
48 uint8_t version) {
49 DCHECK(box->size() == 0);
50
51 box->reserve(size);
52 // Add size.
53 box->push_back(0);
54 box->push_back(0);
55 box->push_back(0);
56 box->push_back(size);
57 // Add 'pssh'.
58 box->push_back('p');
59 box->push_back('s');
60 box->push_back('s');
61 box->push_back('h');
62 // Add version.
63 box->push_back(version);
64 // Add flags.
65 box->push_back(0);
66 box->push_back(0);
67 box->push_back(0);
68 // Add Common Encryption SystemID.
69 box->insert(box->end(), common_system_system_id_.begin(),
70 common_system_system_id_.end());
71 }
72
73 std::vector<uint8_t> MakePSSHBox(uint8_t version) {
74 std::vector<uint8_t> box;
75 uint8_t size = (version == 0) ? 32 : 36;
76 InitializePSSHBox(&box, size, version);
77 if (version > 0) {
78 // Add key_count (= 0).
79 box.push_back(0);
80 box.push_back(0);
81 box.push_back(0);
82 box.push_back(0);
83 }
84 // Add data_size (= 0).
85 box.push_back(0);
86 box.push_back(0);
87 box.push_back(0);
88 box.push_back(0);
89 return box;
90 }
91
92 std::vector<uint8_t> MakePSSHBox(uint8_t version,
93 const std::vector<uint8_t>& key1) {
94 DCHECK(version > 0);
95 DCHECK(key1.size() == 16);
96
97 std::vector<uint8_t> box;
98 uint8_t size = 52;
99 InitializePSSHBox(&box, size, version);
100
101 // Add key_count (= 1).
102 box.push_back(0);
103 box.push_back(0);
104 box.push_back(0);
105 box.push_back(1);
106
107 // Add key1.
108 for (size_t i = 0; i < key1.size(); ++i)
109 box.push_back(key1[i]);
110
111 // Add data_size (= 0).
112 box.push_back(0);
113 box.push_back(0);
114 box.push_back(0);
115 box.push_back(0);
116 return box;
117 }
118
119 std::vector<uint8_t> MakePSSHBox(uint8_t version,
120 const std::vector<uint8_t>& key1,
121 const std::vector<uint8_t>& key2) {
122 DCHECK(version > 0);
123 DCHECK(key1.size() == 16);
124 DCHECK(key2.size() == 16);
125
126 std::vector<uint8_t> box;
127 uint8_t size = 68;
128 InitializePSSHBox(&box, size, version);
129
130 // Add key_count (= 2).
131 box.push_back(0);
132 box.push_back(0);
133 box.push_back(0);
134 box.push_back(2);
135
136 // Add key1.
137 for (size_t i = 0; i < key1.size(); ++i)
138 box.push_back(key1[i]);
139
140 // Add key2.
141 for (size_t i = 0; i < key2.size(); ++i)
142 box.push_back(key2[i]);
143
144 // Add data_size (= 0).
145 box.push_back(0);
146 box.push_back(0);
147 box.push_back(0);
148 box.push_back(0);
149 return box;
150 }
151
152 void AppendData(std::vector<uint8_t>& pssh_box,
153 const std::vector<uint8_t>& data) {
154 // This assumes that |pssh_box| has been created using the routines above,
155 // and simply appends the data to the end of it. It updates the box size
156 // and sets the data size.
157 DCHECK(data.size() < 100);
158 pssh_box[3] += data.size();
159 pssh_box.pop_back();
160 pssh_box.push_back(data.size());
161 pssh_box.insert(pssh_box.end(), data.begin(), data.end());
162 }
163
164 const std::vector<uint8_t>& Key1() { return key1_; }
165 const std::vector<uint8_t>& Key2() { return key2_; }
166 const std::vector<uint8_t>& Key3() { return key3_; }
167 const std::vector<uint8_t>& Key4() { return key4_; }
168 const std::vector<uint8_t>& CommonSystemSystemId() {
169 return common_system_system_id_;
170 }
171
172 private:
173 std::vector<uint8_t> key1_;
174 std::vector<uint8_t> key2_;
175 std::vector<uint8_t> key3_;
176 std::vector<uint8_t> key4_;
177 std::vector<uint8_t> common_system_system_id_;
178 };
179
180 TEST_F(CencUtilsTest, EmptyPSSH) {
181 KeyIdList key_ids;
182 EXPECT_TRUE(ValidatePsshInput(std::vector<uint8_t>()));
183 EXPECT_FALSE(GetKeyIdsForCommonSystemId(std::vector<uint8_t>(), &key_ids));
184 }
185
186 TEST_F(CencUtilsTest, PSSHVersion0) {
187 std::vector<uint8_t> box = MakePSSHBox(0);
188 KeyIdList key_ids;
189 EXPECT_TRUE(ValidatePsshInput(box));
190 EXPECT_FALSE(GetKeyIdsForCommonSystemId(box, &key_ids));
191 }
192
193 TEST_F(CencUtilsTest, PSSHVersion1WithNoKeys) {
194 std::vector<uint8_t> box = MakePSSHBox(1);
195 KeyIdList key_ids;
196 EXPECT_TRUE(ValidatePsshInput(box));
197 EXPECT_FALSE(GetKeyIdsForCommonSystemId(box, &key_ids));
198 }
199
200 TEST_F(CencUtilsTest, PSSHVersion1WithOneKey) {
201 std::vector<uint8_t> box = MakePSSHBox(1, Key1());
202 KeyIdList key_ids;
203 EXPECT_TRUE(ValidatePsshInput(box));
204 EXPECT_TRUE(GetKeyIdsForCommonSystemId(box, &key_ids));
205 EXPECT_EQ(1u, key_ids.size());
206 EXPECT_EQ(key_ids[0], Key1());
207 }
208
209 TEST_F(CencUtilsTest, PSSHVersion1WithTwoKeys) {
210 std::vector<uint8_t> box = MakePSSHBox(1, Key1(), Key2());
211 KeyIdList key_ids;
212 EXPECT_TRUE(ValidatePsshInput(box));
213 EXPECT_TRUE(GetKeyIdsForCommonSystemId(box, &key_ids));
214 EXPECT_EQ(2u, key_ids.size());
215 EXPECT_EQ(key_ids[0], Key1());
216 EXPECT_EQ(key_ids[1], Key2());
217 }
218
219 TEST_F(CencUtilsTest, PSSHVersion0Plus1) {
220 std::vector<uint8_t> box0 = MakePSSHBox(0);
221 std::vector<uint8_t> box1 = MakePSSHBox(1, Key1());
222
223 // Concatentate box1 onto end of box0.
224 box0.insert(box0.end(), box1.begin(), box1.end());
225 EXPECT_TRUE(ValidatePsshInput(box0));
226
227 // No key IDs returned as only the first 'pssh' box is processed.
228 KeyIdList key_ids;
229 EXPECT_FALSE(GetKeyIdsForCommonSystemId(box0, &key_ids));
230 }
231
232 TEST_F(CencUtilsTest, PSSHVersion1Plus0) {
233 std::vector<uint8_t> box0 = MakePSSHBox(0);
234 std::vector<uint8_t> box1 = MakePSSHBox(1, Key1());
235
236 // Concatentate box0 onto end of box1.
237 box1.insert(box1.end(), box0.begin(), box0.end());
238
239 KeyIdList key_ids;
240 EXPECT_TRUE(ValidatePsshInput(box1));
241 EXPECT_TRUE(GetKeyIdsForCommonSystemId(box1, &key_ids));
242 EXPECT_EQ(1u, key_ids.size());
243 EXPECT_EQ(key_ids[0], Key1());
244 }
245
246 TEST_F(CencUtilsTest, MultiplePSSHVersion1) {
247 std::vector<uint8_t> box = MakePSSHBox(1, Key1(), Key2());
248 std::vector<uint8_t> box1 = MakePSSHBox(1, Key3());
249 std::vector<uint8_t> box2 = MakePSSHBox(1, Key4());
250
251 // Concatentate box1 and box2 onto end of box.
252 box.insert(box.end(), box1.begin(), box1.end());
253 box.insert(box.end(), box2.begin(), box2.end());
254
255 KeyIdList key_ids;
256 EXPECT_TRUE(ValidatePsshInput(box));
257 EXPECT_TRUE(GetKeyIdsForCommonSystemId(box, &key_ids));
258 EXPECT_EQ(2u, key_ids.size());
259 EXPECT_EQ(key_ids[0], Key1());
260 EXPECT_EQ(key_ids[1], Key2());
261 }
262
263 TEST_F(CencUtilsTest, PsshBoxSmallerThanSize) {
264 std::vector<uint8_t> box = MakePSSHBox(1, Key1(), Key2());
265 KeyIdList key_ids;
266
267 // Tries every buffer size less than the indicated 'pssh' box size.
268 for (size_t i = 1; i < box.size(); ++i) {
269 // Truncate the box to be less than the specified box size.
270 std::vector<uint8_t> truncated(&box[0], &box[0] + i);
271 EXPECT_FALSE(ValidatePsshInput(truncated)) << "Failed for length " << i;
272 EXPECT_FALSE(GetKeyIdsForCommonSystemId(truncated, &key_ids));
273 }
274 }
275
276 TEST_F(CencUtilsTest, PsshBoxLargerThanSize) {
277 std::vector<uint8_t> box = MakePSSHBox(1, Key1(), Key2());
278 KeyIdList key_ids;
279
280 // Add 20 additional bytes to |box|.
281 size_t original_size = box.size();
282 for (size_t i = 0; i < 20; ++i)
283 box.push_back(i);
284
285 // Tries every size greater than |original_size|.
286 for (size_t i = original_size + 1; i < box.size(); ++i) {
287 // Modify size of box passed to be less than current size.
288 std::vector<uint8_t> truncated(&box[0], &box[0] + i);
289 EXPECT_FALSE(ValidatePsshInput(truncated)) << "Failed for length " << i;
290 EXPECT_FALSE(GetKeyIdsForCommonSystemId(truncated, &key_ids));
291 }
292 }
293
294 TEST_F(CencUtilsTest, UnrecognizedSystemID) {
295 std::vector<uint8_t> box = MakePSSHBox(1, Key1(), Key2());
296
297 // Modify the System ID.
298 ++box[20];
299
300 KeyIdList key_ids;
301 EXPECT_FALSE(GetKeyIdsForCommonSystemId(box, &key_ids));
302 }
303
304 TEST_F(CencUtilsTest, InvalidFlags) {
305 std::vector<uint8_t> box = MakePSSHBox(1, Key1(), Key2());
306
307 // Modify flags.
308 box[10] = 3;
309
310 KeyIdList key_ids;
311 EXPECT_FALSE(GetKeyIdsForCommonSystemId(box, &key_ids));
312 }
313
314 TEST_F(CencUtilsTest, LongSize) {
315 const uint8_t data[] = {
316 0x00, 0x00, 0x00, 0x01, // size = 1
317 0x70, 0x73, 0x73, 0x68, // 'pssh'
318 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4c, // longsize
319 0x01, // version
320 0x00, 0x00, 0x00, // flags
321 0x10, 0x77, 0xEF, 0xEC, 0xC0, 0xB2, 0x4D, 0x02, // SystemID
322 0xAC, 0xE3, 0x3C, 0x1E, 0x52, 0xE2, 0xFB, 0x4B,
323 0x00, 0x00, 0x00, 0x02, // key count
324 0x7E, 0x57, 0x1D, 0x03, 0x7E, 0x57, 0x1D, 0x03, // key1
325 0x7E, 0x57, 0x1D, 0x03, 0x7E, 0x57, 0x1D, 0x03,
326 0x7E, 0x57, 0x1D, 0x04, 0x7E, 0x57, 0x1D, 0x04, // key2
327 0x7E, 0x57, 0x1D, 0x04, 0x7E, 0x57, 0x1D, 0x04,
328 0x00, 0x00, 0x00, 0x00 // datasize
329 };
330
331 KeyIdList key_ids;
332 EXPECT_TRUE(
333 ValidatePsshInput(std::vector<uint8_t>(data, data + arraysize(data))));
334 EXPECT_TRUE(GetKeyIdsForCommonSystemId(
335 std::vector<uint8_t>(data, data + arraysize(data)), &key_ids));
336 EXPECT_EQ(2u, key_ids.size());
337 }
338
339 TEST_F(CencUtilsTest, SizeIsZero) {
340 const uint8_t data[] = {
341 0x00, 0x00, 0x00, 0x00, // size = 0
342 0x70, 0x73, 0x73, 0x68, // 'pssh'
343 0x01, // version
344 0x00, 0x00, 0x00, // flags
345 0x10, 0x77, 0xEF, 0xEC, 0xC0, 0xB2, 0x4D, 0x02, // SystemID
346 0xAC, 0xE3, 0x3C, 0x1E, 0x52, 0xE2, 0xFB, 0x4B,
347 0x00, 0x00, 0x00, 0x02, // key count
348 0x7E, 0x57, 0x1D, 0x03, 0x7E, 0x57, 0x1D, 0x03, // key1
349 0x7E, 0x57, 0x1D, 0x03, 0x7E, 0x57, 0x1D, 0x03,
350 0x7E, 0x57, 0x1D, 0x04, 0x7E, 0x57, 0x1D, 0x04, // key2
351 0x7E, 0x57, 0x1D, 0x04, 0x7E, 0x57, 0x1D, 0x04,
352 0x00, 0x00, 0x00, 0x00 // datasize
353 };
354
355 KeyIdList key_ids;
356 EXPECT_TRUE(
357 ValidatePsshInput(std::vector<uint8_t>(data, data + arraysize(data))));
358 EXPECT_TRUE(GetKeyIdsForCommonSystemId(
359 std::vector<uint8_t>(data, data + arraysize(data)), &key_ids));
360 EXPECT_EQ(2u, key_ids.size());
361 }
362
363 TEST_F(CencUtilsTest, HugeSize) {
364 const uint8_t data[] = {
365 0x00, 0x00, 0x00, 0x01, // size = 1
366 0x70, 0x73, 0x73, 0x68, // 'pssh'
367 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // longsize = big
368 0x01, // version
369 0x00, 0x00, 0x00, // flags
370 0x10, 0x77, 0xEF, 0xEC, 0xC0, 0xB2, 0x4D, 0x02, // SystemID
371 0xAC, 0xE3, 0x3C, 0x1E, 0x52, 0xE2, 0xFB, 0x4B,
372 0x00, 0x00, 0x00, 0x02, // key count
373 0x7E, 0x57, 0x1D, 0x03, 0x7E, 0x57, 0x1D, 0x03, // key1
374 0x7E, 0x57, 0x1D, 0x03, 0x7E, 0x57, 0x1D, 0x03,
375 0x7E, 0x57, 0x1D, 0x04, 0x7E, 0x57, 0x1D, 0x04, // key2
376 0x7E, 0x57, 0x1D, 0x04, 0x7E, 0x57, 0x1D, 0x04,
377 0x00, 0x00, 0x00, 0x00 // datasize
378 };
379
380 KeyIdList key_ids;
381 // These calls fail as the box size is huge (0xffffffffffffffff) and there
382 // is not enough bytes in |data|.
383 EXPECT_FALSE(
384 ValidatePsshInput(std::vector<uint8_t>(data, data + arraysize(data))));
385 EXPECT_FALSE(GetKeyIdsForCommonSystemId(
386 std::vector<uint8_t>(data, data + arraysize(data)), &key_ids));
387 }
388
389 TEST_F(CencUtilsTest, GetPsshData_Version0) {
390 const uint8_t data_bytes[] = {0x01, 0x02, 0x03, 0x04};
391 std::vector<uint8_t> pssh_data;
392
393 std::vector<uint8_t> box = MakePSSHBox(0);
394 EXPECT_TRUE(GetPsshData(box, CommonSystemSystemId(), &pssh_data));
395 EXPECT_EQ(0u, pssh_data.size());
396
397 std::vector<uint8_t> data(data_bytes, data_bytes + arraysize(data_bytes));
398 AppendData(box, data);
399 EXPECT_TRUE(GetPsshData(box, CommonSystemSystemId(), &pssh_data));
400 EXPECT_EQ(data, pssh_data);
401 }
402
403 TEST_F(CencUtilsTest, GetPsshData_Version1NoKeys) {
404 const uint8_t data_bytes[] = {0x05, 0x06, 0x07, 0x08};
405 std::vector<uint8_t> pssh_data;
406
407 std::vector<uint8_t> box = MakePSSHBox(1);
408 EXPECT_TRUE(GetPsshData(box, CommonSystemSystemId(), &pssh_data));
409 EXPECT_EQ(0u, pssh_data.size());
410
411 std::vector<uint8_t> data(data_bytes, data_bytes + arraysize(data_bytes));
412 AppendData(box, data);
413 EXPECT_TRUE(GetPsshData(box, CommonSystemSystemId(), &pssh_data));
414 EXPECT_EQ(data, pssh_data);
415 }
416
417 TEST_F(CencUtilsTest, GetPsshData_Version1WithKeys) {
418 const uint8_t data_bytes[] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
419 std::vector<uint8_t> pssh_data;
420
421 std::vector<uint8_t> box = MakePSSHBox(1, Key1());
422 EXPECT_TRUE(GetPsshData(box, CommonSystemSystemId(), &pssh_data));
423 EXPECT_EQ(0u, pssh_data.size());
424
425 std::vector<uint8_t> data(data_bytes, data_bytes + arraysize(data_bytes));
426 AppendData(box, data);
427 EXPECT_TRUE(GetPsshData(box, CommonSystemSystemId(), &pssh_data));
428 EXPECT_EQ(data, pssh_data);
429 }
430
431 TEST_F(CencUtilsTest, GetPsshData_Version2) {
432 std::vector<uint8_t> pssh_data;
433
434 std::vector<uint8_t> box = MakePSSHBox(1, Key1());
435 EXPECT_TRUE(GetPsshData(box, CommonSystemSystemId(), &pssh_data));
436
437 // Change the version manually, since we don't know what v2 will contain.
438 box[8] = 2;
439 EXPECT_FALSE(GetPsshData(box, CommonSystemSystemId(), &pssh_data));
440 }
441
442 TEST_F(CencUtilsTest, GetPsshData_Version2ThenVersion1) {
443 std::vector<uint8_t> pssh_data;
444
445 std::vector<uint8_t> box_v1 = MakePSSHBox(1, Key1());
446 std::vector<uint8_t> box_v2 = MakePSSHBox(2, Key2(), Key3());
447
448 // Concatentate the boxes together (v2 first).
449 std::vector<uint8_t> boxes;
450 boxes.insert(boxes.end(), box_v2.begin(), box_v2.end());
451 boxes.insert(boxes.end(), box_v1.begin(), box_v1.end());
452 EXPECT_TRUE(GetPsshData(boxes, CommonSystemSystemId(), &pssh_data));
453
454 // GetKeyIdsForCommonSystemId() should return the single key from the v1
455 // 'pssh' box.
456 KeyIdList key_ids;
457 EXPECT_TRUE(GetKeyIdsForCommonSystemId(boxes, &key_ids));
458 EXPECT_EQ(1u, key_ids.size());
459 EXPECT_EQ(key_ids[0], Key1());
460 }
461
462 TEST_F(CencUtilsTest, GetPsshData_Version1ThenVersion2) {
463 std::vector<uint8_t> pssh_data;
464
465 std::vector<uint8_t> box_v1 = MakePSSHBox(1, Key3());
466 std::vector<uint8_t> box_v2 = MakePSSHBox(2, Key4());
467
468 // Concatentate the boxes together (v1 first).
469 std::vector<uint8_t> boxes;
470 boxes.insert(boxes.end(), box_v1.begin(), box_v1.end());
471 boxes.insert(boxes.end(), box_v2.begin(), box_v2.end());
472 EXPECT_TRUE(GetPsshData(boxes, CommonSystemSystemId(), &pssh_data));
473
474 // GetKeyIdsForCommonSystemId() should return the single key from the v1
475 // 'pssh' box.
476 KeyIdList key_ids;
477 EXPECT_TRUE(GetKeyIdsForCommonSystemId(boxes, &key_ids));
478 EXPECT_EQ(1u, key_ids.size());
479 EXPECT_EQ(key_ids[0], Key3());
480 }
481
482 TEST_F(CencUtilsTest, GetPsshData_DifferentSystemID) {
483 std::vector<uint8_t> unknown_system_id(kKey1Data,
484 kKey1Data + arraysize(kKey1Data));
485 std::vector<uint8_t> pssh_data;
486
487 std::vector<uint8_t> box = MakePSSHBox(1, Key1());
488 EXPECT_TRUE(GetPsshData(box, CommonSystemSystemId(), &pssh_data));
489 EXPECT_FALSE(GetPsshData(box, unknown_system_id, &pssh_data));
490 }
491
492 TEST_F(CencUtilsTest, GetPsshData_MissingData) {
493 const uint8_t data_bytes[] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
494 std::vector<uint8_t> pssh_data;
495
496 std::vector<uint8_t> box = MakePSSHBox(1, Key1());
497 std::vector<uint8_t> data(data_bytes, data_bytes + arraysize(data_bytes));
498 AppendData(box, data);
499 EXPECT_TRUE(GetPsshData(box, CommonSystemSystemId(), &pssh_data));
500
501 // Remove some data from the end, so now the size is incorrect.
502 box.pop_back();
503 box.pop_back();
504 EXPECT_FALSE(GetPsshData(box, CommonSystemSystemId(), &pssh_data));
505 }
506
507 TEST_F(CencUtilsTest, GetPsshData_MultiplePssh) {
508 const uint8_t data1_bytes[] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07};
509 const uint8_t data2_bytes[] = {0xa1, 0xa2, 0xa3, 0xa4};
510 std::vector<uint8_t> pssh_data;
511
512 std::vector<uint8_t> box1 = MakePSSHBox(1, Key1());
513 std::vector<uint8_t> data1(data1_bytes, data1_bytes + arraysize(data1_bytes));
514 AppendData(box1, data1);
515
516 std::vector<uint8_t> box2 = MakePSSHBox(0);
517 std::vector<uint8_t> data2(data2_bytes, data2_bytes + arraysize(data2_bytes));
518 AppendData(box2, data2);
519
520 box1.insert(box1.end(), box2.begin(), box2.end());
521 EXPECT_TRUE(GetPsshData(box1, CommonSystemSystemId(), &pssh_data));
522 EXPECT_EQ(data1, pssh_data);
523 EXPECT_NE(data2, pssh_data);
524 }
525
526 TEST_F(CencUtilsTest, NonPsshData) {
527 // Create a non-'pssh' box.
528 const uint8_t data[] = {
529 0x00, 0x00, 0x00, 0x08, // size = 8
530 'p', 's', 's', 'g'
531 };
532 std::vector<uint8_t> non_pssh_box(data, data + arraysize(data));
533 EXPECT_FALSE(ValidatePsshInput(non_pssh_box));
534
535 // Make a valid 'pssh' box.
536 std::vector<uint8_t> pssh_box = MakePSSHBox(1, Key1());
537 EXPECT_TRUE(ValidatePsshInput(pssh_box));
538
539 // Concatentate the boxes together (|pssh_box| first).
540 std::vector<uint8_t> boxes;
541 boxes.insert(boxes.end(), pssh_box.begin(), pssh_box.end());
542 boxes.insert(boxes.end(), non_pssh_box.begin(), non_pssh_box.end());
543 EXPECT_FALSE(ValidatePsshInput(boxes));
544
545 // Repeat with |non_pssh_box| first.
546 boxes.clear();
547 boxes.insert(boxes.end(), non_pssh_box.begin(), non_pssh_box.end());
548 boxes.insert(boxes.end(), pssh_box.begin(), pssh_box.end());
549 EXPECT_FALSE(ValidatePsshInput(boxes));
550 }
551
552 } // namespace media