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| 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 <stddef.h> | |
| 6 #include <stdint.h> | |
| 7 | |
| 8 #include "media/base/android/access_unit_queue.h" | |
| 9 #include "testing/gtest/include/gtest/gtest.h" | |
| 10 | |
| 11 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
| 12 | |
| 13 namespace media { | |
| 14 | |
| 15 class AccessUnitQueueTest : public testing::Test { | |
| 16 public: | |
| 17 AccessUnitQueueTest() {} | |
| 18 ~AccessUnitQueueTest() override {} | |
| 19 | |
| 20 protected: | |
| 21 enum UnitType { kNormal = 0, kKeyFrame, kEOS, kConfig }; | |
| 22 struct AUDescriptor { | |
| 23 UnitType unit_type; | |
| 24 std::string data; | |
| 25 }; | |
| 26 | |
| 27 DemuxerData CreateDemuxerData(const AUDescriptor* descr, int descr_length); | |
| 28 }; | |
| 29 | |
| 30 DemuxerData AccessUnitQueueTest::CreateDemuxerData(const AUDescriptor* descr, | |
| 31 int descr_length) { | |
| 32 DemuxerData result; | |
| 33 result.type = DemuxerStream::AUDIO; // assign a valid type | |
| 34 | |
| 35 for (int i = 0; i < descr_length; ++i) { | |
| 36 result.access_units.push_back(AccessUnit()); | |
| 37 AccessUnit& au = result.access_units.back(); | |
| 38 | |
| 39 if (descr[i].unit_type == kConfig) { | |
| 40 au.status = DemuxerStream::kConfigChanged; | |
| 41 result.demuxer_configs.push_back(DemuxerConfigs()); | |
| 42 // ignore data | |
| 43 continue; | |
| 44 } | |
| 45 | |
| 46 au.status = DemuxerStream::kOk; | |
| 47 | |
| 48 if (descr[i].unit_type == kEOS) { | |
| 49 au.is_end_of_stream = true; | |
| 50 // ignore data | |
| 51 continue; | |
| 52 } | |
| 53 | |
| 54 au.data = std::vector<uint8_t>(descr[i].data.begin(), descr[i].data.end()); | |
| 55 | |
| 56 if (descr[i].unit_type == kKeyFrame) | |
| 57 au.is_key_frame = true; | |
| 58 } | |
| 59 return result; | |
| 60 } | |
| 61 | |
| 62 #define VERIFY_FIRST_BYTE(expected, info) \ | |
| 63 do { \ | |
| 64 EXPECT_NE(nullptr, info.front_unit); \ | |
| 65 EXPECT_TRUE(info.front_unit->data.size() > 0); \ | |
| 66 EXPECT_EQ(expected, info.front_unit->data[0]); \ | |
| 67 } while (0) | |
| 68 | |
| 69 TEST_F(AccessUnitQueueTest, InitializedEmpty) { | |
| 70 AccessUnitQueue au_queue; | |
| 71 AccessUnitQueue::Info info = au_queue.GetInfo(); | |
| 72 | |
| 73 EXPECT_EQ(0, info.length); | |
| 74 EXPECT_FALSE(info.has_eos); | |
| 75 EXPECT_EQ(nullptr, info.front_unit); | |
| 76 EXPECT_EQ(nullptr, info.configs); | |
| 77 } | |
| 78 | |
| 79 TEST_F(AccessUnitQueueTest, RewindToLastKeyFrameEmptyQueue) { | |
| 80 AccessUnitQueue au_queue; | |
| 81 EXPECT_FALSE(au_queue.RewindToLastKeyFrame()); | |
| 82 } | |
| 83 | |
| 84 TEST_F(AccessUnitQueueTest, PushAndAdvance) { | |
| 85 AUDescriptor chunk1[] = {{kNormal, "0"}, | |
| 86 {kNormal, "1"}, | |
| 87 {kNormal, "2"}, | |
| 88 {kNormal, "3"}, | |
| 89 {kNormal, "4"}, | |
| 90 {kNormal, "5"}}; | |
| 91 AUDescriptor chunk2[] = {{kNormal, "6"}, | |
| 92 {kNormal, "7"}, | |
| 93 {kNormal, "8"}}; | |
| 94 | |
| 95 int total_size = ARRAY_SIZE(chunk1) + ARRAY_SIZE(chunk2); | |
| 96 | |
| 97 AccessUnitQueue au_queue; | |
| 98 au_queue.PushBack(CreateDemuxerData(chunk1, ARRAY_SIZE(chunk1))); | |
| 99 au_queue.PushBack(CreateDemuxerData(chunk2, ARRAY_SIZE(chunk2))); | |
| 100 | |
| 101 AccessUnitQueue::Info info; | |
| 102 for (int i = 0; i < total_size; ++i) { | |
| 103 info = au_queue.GetInfo(); | |
| 104 | |
| 105 EXPECT_FALSE(info.has_eos); | |
| 106 EXPECT_EQ(total_size - i, info.length); | |
| 107 EXPECT_EQ(nullptr, info.configs); | |
| 108 | |
| 109 ASSERT_NE(nullptr, info.front_unit); | |
| 110 EXPECT_TRUE(info.front_unit->data.size() > 0); | |
| 111 EXPECT_EQ('0' + i, info.front_unit->data[0]); | |
| 112 | |
| 113 au_queue.Advance(); | |
| 114 } | |
| 115 | |
| 116 // After we advanced past the last AU, GetInfo() should report starvation. | |
| 117 info = au_queue.GetInfo(); | |
| 118 | |
| 119 EXPECT_EQ(0, info.length); | |
| 120 EXPECT_FALSE(info.has_eos); | |
| 121 EXPECT_EQ(nullptr, info.front_unit); | |
| 122 EXPECT_EQ(nullptr, info.configs); | |
| 123 } | |
| 124 | |
| 125 TEST_F(AccessUnitQueueTest, ChunksDoNotLeak) { | |
| 126 AUDescriptor chunk[] = { | |
| 127 {kNormal, "0"}, {kNormal, "1"}, {kNormal, "2"}, {kNormal, "3"}}; | |
| 128 | |
| 129 AccessUnitQueue au_queue; | |
| 130 | |
| 131 // Verify that the old chunks get deleted (we rely on NumChunksForTesting()). | |
| 132 // First, run the loop with default history size, which is zero chunks. | |
| 133 for (size_t i = 0; i < 100; ++i) { | |
| 134 au_queue.PushBack(CreateDemuxerData(chunk, ARRAY_SIZE(chunk))); | |
| 135 for (size_t j = 0; j < ARRAY_SIZE(chunk); ++j) | |
| 136 au_queue.Advance(); | |
| 137 | |
| 138 EXPECT_EQ(0U, au_queue.NumChunksForTesting()); | |
| 139 } | |
| 140 | |
| 141 // Change the history size and run again. | |
| 142 au_queue.SetHistorySizeForTesting(5); | |
| 143 | |
| 144 for (size_t i = 0; i < 100; ++i) { | |
| 145 au_queue.PushBack(CreateDemuxerData(chunk, ARRAY_SIZE(chunk))); | |
| 146 for (size_t j = 0; j < ARRAY_SIZE(chunk); ++j) | |
| 147 au_queue.Advance(); | |
| 148 | |
| 149 if (i < 4) | |
| 150 EXPECT_EQ(i + 1, au_queue.NumChunksForTesting()); | |
| 151 else | |
| 152 EXPECT_EQ(5U, au_queue.NumChunksForTesting()); | |
| 153 } | |
| 154 } | |
| 155 | |
| 156 TEST_F(AccessUnitQueueTest, PushAfterStarvation) { | |
| 157 // Two chunks | |
| 158 AUDescriptor chunk[][4] = { | |
| 159 {{kNormal, "0"}, {kNormal, "1"}, {kNormal, "2"}, {kNormal, "3"}}, | |
| 160 {{kNormal, "4"}, {kNormal, "5"}, {kNormal, "6"}, {kNormal, "7"}}}; | |
| 161 | |
| 162 AccessUnitQueue au_queue; | |
| 163 | |
| 164 // Push the first chunk. | |
| 165 au_queue.PushBack(CreateDemuxerData(chunk[0], ARRAY_SIZE(chunk[0]))); | |
| 166 | |
| 167 // Advance past the end of queue. | |
| 168 for (size_t i = 0; i < ARRAY_SIZE(chunk[0]); ++i) | |
| 169 au_queue.Advance(); | |
| 170 | |
| 171 // An extra Advance() should not change anything. | |
| 172 au_queue.Advance(); | |
| 173 | |
| 174 // Push the second chunk | |
| 175 au_queue.PushBack(CreateDemuxerData(chunk[1], ARRAY_SIZE(chunk[1]))); | |
| 176 | |
| 177 // Verify that we get the next access unit. | |
| 178 AccessUnitQueue::Info info = au_queue.GetInfo(); | |
| 179 VERIFY_FIRST_BYTE('4', info); | |
| 180 } | |
| 181 | |
| 182 TEST_F(AccessUnitQueueTest, HasEOS) { | |
| 183 // Two chunks | |
| 184 AUDescriptor chunk[][4] = { | |
| 185 {{kNormal, "0"}, {kNormal, "1"}, {kNormal, "2"}, {kNormal, "3"}}, | |
| 186 {{kNormal, "4"}, {kNormal, "5"}, {kNormal, "6"}, {kEOS, "7"}}}; | |
| 187 | |
| 188 AccessUnitQueue au_queue; | |
| 189 au_queue.PushBack(CreateDemuxerData(chunk[0], ARRAY_SIZE(chunk[0]))); | |
| 190 au_queue.PushBack(CreateDemuxerData(chunk[1], ARRAY_SIZE(chunk[1]))); | |
| 191 | |
| 192 // Verify that after EOS has been pushed into the queue, | |
| 193 // it is reported for every GetInfo() | |
| 194 for (int i = 0; i < 8; ++i) { | |
| 195 AccessUnitQueue::Info info = au_queue.GetInfo(); | |
| 196 | |
| 197 EXPECT_TRUE(info.has_eos); | |
| 198 EXPECT_EQ(nullptr, info.configs); | |
| 199 | |
| 200 if (i == 7) | |
| 201 EXPECT_TRUE(info.front_unit->is_end_of_stream); | |
| 202 else | |
| 203 VERIFY_FIRST_BYTE('0' + i, info); | |
| 204 | |
| 205 au_queue.Advance(); | |
| 206 } | |
| 207 } | |
| 208 | |
| 209 TEST_F(AccessUnitQueueTest, HasConfigs) { | |
| 210 AUDescriptor chunk[] = { | |
| 211 {kNormal, "0"}, {kNormal, "1"}, {kNormal, "2"}, {kConfig, "3"}}; | |
| 212 | |
| 213 AccessUnitQueue au_queue; | |
| 214 au_queue.PushBack(CreateDemuxerData(chunk, ARRAY_SIZE(chunk))); | |
| 215 | |
| 216 for (int i = 0; i < 4; ++i) { | |
| 217 AccessUnitQueue::Info info = au_queue.GetInfo(); | |
| 218 | |
| 219 if (i != 3) | |
| 220 EXPECT_EQ(nullptr, info.configs); | |
| 221 else | |
| 222 EXPECT_NE(nullptr, info.configs); | |
| 223 | |
| 224 au_queue.Advance(); | |
| 225 } | |
| 226 } | |
| 227 | |
| 228 TEST_F(AccessUnitQueueTest, ConfigsAndKeyFrame) { | |
| 229 // Two chunks | |
| 230 AUDescriptor chunk[][4] = { | |
| 231 {{kNormal, "0"}, {kKeyFrame, "1"}, {kNormal, "2"}, {kConfig, "3"}}, | |
| 232 {{kKeyFrame, "4"}, {kNormal, "5"}, {kNormal, "6"}, {kNormal, "7"}}}; | |
| 233 | |
| 234 AccessUnitQueue::Info info; | |
| 235 | |
| 236 AccessUnitQueue au_queue; | |
| 237 au_queue.PushBack(CreateDemuxerData(chunk[0], ARRAY_SIZE(chunk[0]))); | |
| 238 au_queue.PushBack(CreateDemuxerData(chunk[1], ARRAY_SIZE(chunk[1]))); | |
| 239 | |
| 240 // There is no prior key frame | |
| 241 EXPECT_FALSE(au_queue.RewindToLastKeyFrame()); | |
| 242 | |
| 243 // Consume first access unit. | |
| 244 au_queue.Advance(); | |
| 245 | |
| 246 // Now the current one is the key frame. It would be safe to configure codec | |
| 247 // at this moment, so RewindToLastKeyFrame() should return true. | |
| 248 EXPECT_TRUE(au_queue.RewindToLastKeyFrame()); | |
| 249 | |
| 250 info = au_queue.GetInfo(); | |
| 251 VERIFY_FIRST_BYTE('1', info); | |
| 252 | |
| 253 au_queue.Advance(); // now current unit is "2" | |
| 254 | |
| 255 info = au_queue.GetInfo(); | |
| 256 VERIFY_FIRST_BYTE('2', info); | |
| 257 | |
| 258 EXPECT_TRUE(au_queue.RewindToLastKeyFrame()); // should go back to "1" | |
| 259 | |
| 260 info = au_queue.GetInfo(); | |
| 261 VERIFY_FIRST_BYTE('1', info); | |
| 262 | |
| 263 au_queue.Advance(); // now current unit is "2" | |
| 264 au_queue.Advance(); // now current unit is "3" | |
| 265 | |
| 266 // Verify that we are at "3". | |
| 267 info = au_queue.GetInfo(); | |
| 268 EXPECT_NE(nullptr, info.configs); | |
| 269 | |
| 270 // Although it would be safe to configure codec (with old config) in this | |
| 271 // position since it will be immediately reconfigured from the next unit "3", | |
| 272 // current implementation returns unit "1". | |
| 273 | |
| 274 EXPECT_TRUE(au_queue.RewindToLastKeyFrame()); // should go back to "1" | |
| 275 | |
| 276 info = au_queue.GetInfo(); | |
| 277 VERIFY_FIRST_BYTE('1', info); | |
| 278 | |
| 279 au_queue.Advance(); // now current unit is "2" | |
| 280 au_queue.Advance(); // now current unit is "3" | |
| 281 au_queue.Advance(); // now current unit is "4" | |
| 282 | |
| 283 info = au_queue.GetInfo(); | |
| 284 VERIFY_FIRST_BYTE('4', info); | |
| 285 | |
| 286 EXPECT_TRUE(au_queue.RewindToLastKeyFrame()); // should stay at "4" | |
| 287 | |
| 288 info = au_queue.GetInfo(); | |
| 289 VERIFY_FIRST_BYTE('4', info); | |
| 290 | |
| 291 au_queue.Advance(); // now current unit is "5" | |
| 292 au_queue.Advance(); // now current unit is "6" | |
| 293 | |
| 294 info = au_queue.GetInfo(); | |
| 295 VERIFY_FIRST_BYTE('6', info); | |
| 296 | |
| 297 EXPECT_TRUE(au_queue.RewindToLastKeyFrame()); // should go back to "4" | |
| 298 | |
| 299 info = au_queue.GetInfo(); | |
| 300 VERIFY_FIRST_BYTE('4', info); | |
| 301 } | |
| 302 | |
| 303 TEST_F(AccessUnitQueueTest, KeyFrameWithLongHistory) { | |
| 304 // Four chunks | |
| 305 AUDescriptor chunk[][4] = { | |
| 306 {{kNormal, "0"}, {kKeyFrame, "1"}, {kNormal, "2"}, {kNormal, "3"}}, | |
| 307 {{kNormal, "4"}, {kNormal, "5"}, {kNormal, "6"}, {kNormal, "7"}}, | |
| 308 {{kNormal, "8"}, {kNormal, "9"}, {kNormal, "a"}, {kNormal, "b"}}, | |
| 309 {{kNormal, "c"}, {kNormal, "d"}, {kKeyFrame, "e"}, {kNormal, "f"}}}; | |
| 310 | |
| 311 AccessUnitQueue::Info info; | |
| 312 | |
| 313 AccessUnitQueue au_queue; | |
| 314 for (int i = 0; i < 4; ++i) | |
| 315 au_queue.PushBack(CreateDemuxerData(chunk[i], ARRAY_SIZE(chunk[i]))); | |
| 316 | |
| 317 au_queue.SetHistorySizeForTesting(3); | |
| 318 | |
| 319 // Advance to '3'. | |
| 320 for (int i = 0; i < 3; ++i) | |
| 321 au_queue.Advance(); | |
| 322 | |
| 323 info = au_queue.GetInfo(); | |
| 324 VERIFY_FIRST_BYTE('3', info); | |
| 325 | |
| 326 // Rewind to key frame, the current unit should be '1'. | |
| 327 EXPECT_TRUE(au_queue.RewindToLastKeyFrame()); | |
| 328 info = au_queue.GetInfo(); | |
| 329 VERIFY_FIRST_BYTE('1', info); | |
| 330 | |
| 331 // Advance to 'c'. | |
| 332 for (int i = 0; i < 11; ++i) | |
| 333 au_queue.Advance(); | |
| 334 | |
| 335 info = au_queue.GetInfo(); | |
| 336 VERIFY_FIRST_BYTE('c', info); | |
| 337 | |
| 338 // Rewind to key frame, the current unit should be '1' again. | |
| 339 EXPECT_TRUE(au_queue.RewindToLastKeyFrame()); | |
| 340 info = au_queue.GetInfo(); | |
| 341 VERIFY_FIRST_BYTE('1', info); | |
| 342 | |
| 343 // Set history size to 0 (default) | |
| 344 au_queue.SetHistorySizeForTesting(0); | |
| 345 | |
| 346 // Advance to 'd'. Should erase all chunks except the last. | |
| 347 for (int i = 0; i < 12; ++i) | |
| 348 au_queue.Advance(); | |
| 349 | |
| 350 info = au_queue.GetInfo(); | |
| 351 VERIFY_FIRST_BYTE('d', info); | |
| 352 | |
| 353 // Rewind should not find any key frames. | |
| 354 EXPECT_FALSE(au_queue.RewindToLastKeyFrame()); | |
| 355 | |
| 356 au_queue.Advance(); // Advance to key frame 'e'. | |
| 357 info = au_queue.GetInfo(); | |
| 358 VERIFY_FIRST_BYTE('e', info); | |
| 359 | |
| 360 // Rewind should find the same unit 'e. | |
| 361 EXPECT_TRUE(au_queue.RewindToLastKeyFrame()); | |
| 362 info = au_queue.GetInfo(); | |
| 363 VERIFY_FIRST_BYTE('e', info); | |
| 364 } | |
| 365 | |
| 366 } // namespace media | |
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