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| 1 /* | |
| 2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #include <vector> | |
| 12 | |
| 13 #include "testing/gtest/include/gtest/gtest.h" | |
| 14 #include "webrtc/base/scoped_ptr.h" | |
| 15 #include "webrtc/common.h" | |
| 16 #include "webrtc/modules/video_coding/codecs/interface/mock/mock_video_codec_int
erface.h" | |
| 17 #include "webrtc/modules/video_coding/codecs/vp8/include/vp8.h" | |
| 18 #include "webrtc/modules/video_coding/codecs/vp8/include/vp8_common_types.h" | |
| 19 #include "webrtc/modules/video_coding/codecs/vp8/temporal_layers.h" | |
| 20 #include "webrtc/modules/video_coding/main/interface/mock/mock_vcm_callbacks.h" | |
| 21 #include "webrtc/modules/video_coding/main/interface/video_coding.h" | |
| 22 #include "webrtc/modules/video_coding/main/source/video_coding_impl.h" | |
| 23 #include "webrtc/modules/video_coding/main/test/test_util.h" | |
| 24 #include "webrtc/system_wrappers/include/clock.h" | |
| 25 #include "webrtc/test/frame_generator.h" | |
| 26 #include "webrtc/test/testsupport/fileutils.h" | |
| 27 #include "webrtc/test/testsupport/gtest_disable.h" | |
| 28 | |
| 29 using ::testing::_; | |
| 30 using ::testing::AllOf; | |
| 31 using ::testing::ElementsAre; | |
| 32 using ::testing::ElementsAreArray; | |
| 33 using ::testing::Field; | |
| 34 using ::testing::NiceMock; | |
| 35 using ::testing::Pointee; | |
| 36 using ::testing::Return; | |
| 37 using ::testing::FloatEq; | |
| 38 using std::vector; | |
| 39 using webrtc::test::FrameGenerator; | |
| 40 | |
| 41 namespace webrtc { | |
| 42 namespace vcm { | |
| 43 namespace { | |
| 44 enum { | |
| 45 kMaxNumberOfTemporalLayers = 3 | |
| 46 }; | |
| 47 | |
| 48 struct Vp8StreamInfo { | |
| 49 float framerate_fps[kMaxNumberOfTemporalLayers]; | |
| 50 int bitrate_kbps[kMaxNumberOfTemporalLayers]; | |
| 51 }; | |
| 52 | |
| 53 MATCHER_P(MatchesVp8StreamInfo, expected, "") { | |
| 54 bool res = true; | |
| 55 for (int tl = 0; tl < kMaxNumberOfTemporalLayers; ++tl) { | |
| 56 if (fabs(expected.framerate_fps[tl] - arg.framerate_fps[tl]) > 0.5) { | |
| 57 *result_listener << " framerate_fps[" << tl | |
| 58 << "] = " << arg.framerate_fps[tl] << " (expected " | |
| 59 << expected.framerate_fps[tl] << ") "; | |
| 60 res = false; | |
| 61 } | |
| 62 if (abs(expected.bitrate_kbps[tl] - arg.bitrate_kbps[tl]) > 10) { | |
| 63 *result_listener << " bitrate_kbps[" << tl | |
| 64 << "] = " << arg.bitrate_kbps[tl] << " (expected " | |
| 65 << expected.bitrate_kbps[tl] << ") "; | |
| 66 res = false; | |
| 67 } | |
| 68 } | |
| 69 return res; | |
| 70 } | |
| 71 | |
| 72 class EmptyFrameGenerator : public FrameGenerator { | |
| 73 public: | |
| 74 EmptyFrameGenerator(int width, int height) : width_(width), height_(height) {} | |
| 75 VideoFrame* NextFrame() override { | |
| 76 frame_.reset(new VideoFrame()); | |
| 77 frame_->CreateEmptyFrame(width_, height_, width_, (width_ + 1) / 2, | |
| 78 (width_ + 1) / 2); | |
| 79 return frame_.get(); | |
| 80 } | |
| 81 | |
| 82 private: | |
| 83 const int width_; | |
| 84 const int height_; | |
| 85 rtc::scoped_ptr<VideoFrame> frame_; | |
| 86 }; | |
| 87 | |
| 88 class PacketizationCallback : public VCMPacketizationCallback { | |
| 89 public: | |
| 90 PacketizationCallback(Clock* clock) | |
| 91 : clock_(clock), start_time_ms_(clock_->TimeInMilliseconds()) {} | |
| 92 | |
| 93 virtual ~PacketizationCallback() {} | |
| 94 | |
| 95 int32_t SendData(uint8_t payload_type, | |
| 96 const EncodedImage& encoded_image, | |
| 97 const RTPFragmentationHeader& fragmentation_header, | |
| 98 const RTPVideoHeader* rtp_video_header) override { | |
| 99 assert(rtp_video_header); | |
| 100 frame_data_.push_back(FrameData(encoded_image._length, *rtp_video_header)); | |
| 101 return 0; | |
| 102 } | |
| 103 | |
| 104 void Reset() { | |
| 105 frame_data_.clear(); | |
| 106 start_time_ms_ = clock_->TimeInMilliseconds(); | |
| 107 } | |
| 108 | |
| 109 float FramerateFpsWithinTemporalLayer(int temporal_layer) { | |
| 110 return CountFramesWithinTemporalLayer(temporal_layer) * | |
| 111 (1000.0 / interval_ms()); | |
| 112 } | |
| 113 | |
| 114 float BitrateKbpsWithinTemporalLayer(int temporal_layer) { | |
| 115 return SumPayloadBytesWithinTemporalLayer(temporal_layer) * 8.0 / | |
| 116 interval_ms(); | |
| 117 } | |
| 118 | |
| 119 Vp8StreamInfo CalculateVp8StreamInfo() { | |
| 120 Vp8StreamInfo info; | |
| 121 for (int tl = 0; tl < 3; ++tl) { | |
| 122 info.framerate_fps[tl] = FramerateFpsWithinTemporalLayer(tl); | |
| 123 info.bitrate_kbps[tl] = BitrateKbpsWithinTemporalLayer(tl); | |
| 124 } | |
| 125 return info; | |
| 126 } | |
| 127 | |
| 128 private: | |
| 129 struct FrameData { | |
| 130 FrameData() {} | |
| 131 | |
| 132 FrameData(size_t payload_size, const RTPVideoHeader& rtp_video_header) | |
| 133 : payload_size(payload_size), rtp_video_header(rtp_video_header) {} | |
| 134 | |
| 135 size_t payload_size; | |
| 136 RTPVideoHeader rtp_video_header; | |
| 137 }; | |
| 138 | |
| 139 int64_t interval_ms() { | |
| 140 int64_t diff = (clock_->TimeInMilliseconds() - start_time_ms_); | |
| 141 EXPECT_GT(diff, 0); | |
| 142 return diff; | |
| 143 } | |
| 144 | |
| 145 int CountFramesWithinTemporalLayer(int temporal_layer) { | |
| 146 int frames = 0; | |
| 147 for (size_t i = 0; i < frame_data_.size(); ++i) { | |
| 148 EXPECT_EQ(kRtpVideoVp8, frame_data_[i].rtp_video_header.codec); | |
| 149 const uint8_t temporal_idx = | |
| 150 frame_data_[i].rtp_video_header.codecHeader.VP8.temporalIdx; | |
| 151 if (temporal_idx <= temporal_layer || temporal_idx == kNoTemporalIdx) | |
| 152 frames++; | |
| 153 } | |
| 154 return frames; | |
| 155 } | |
| 156 | |
| 157 size_t SumPayloadBytesWithinTemporalLayer(int temporal_layer) { | |
| 158 size_t payload_size = 0; | |
| 159 for (size_t i = 0; i < frame_data_.size(); ++i) { | |
| 160 EXPECT_EQ(kRtpVideoVp8, frame_data_[i].rtp_video_header.codec); | |
| 161 const uint8_t temporal_idx = | |
| 162 frame_data_[i].rtp_video_header.codecHeader.VP8.temporalIdx; | |
| 163 if (temporal_idx <= temporal_layer || temporal_idx == kNoTemporalIdx) | |
| 164 payload_size += frame_data_[i].payload_size; | |
| 165 } | |
| 166 return payload_size; | |
| 167 } | |
| 168 | |
| 169 Clock* clock_; | |
| 170 int64_t start_time_ms_; | |
| 171 vector<FrameData> frame_data_; | |
| 172 }; | |
| 173 | |
| 174 class TestVideoSender : public ::testing::Test { | |
| 175 protected: | |
| 176 // Note: simulated clock starts at 1 seconds, since parts of webrtc use 0 as | |
| 177 // a special case (e.g. frame rate in media optimization). | |
| 178 TestVideoSender() : clock_(1000), packetization_callback_(&clock_) {} | |
| 179 | |
| 180 void SetUp() override { | |
| 181 sender_.reset( | |
| 182 new VideoSender(&clock_, &post_encode_callback_, nullptr, nullptr)); | |
| 183 EXPECT_EQ(0, sender_->RegisterTransportCallback(&packetization_callback_)); | |
| 184 } | |
| 185 | |
| 186 void AddFrame() { | |
| 187 assert(generator_.get()); | |
| 188 sender_->AddVideoFrame(*generator_->NextFrame(), NULL, NULL); | |
| 189 } | |
| 190 | |
| 191 SimulatedClock clock_; | |
| 192 PacketizationCallback packetization_callback_; | |
| 193 MockEncodedImageCallback post_encode_callback_; | |
| 194 // Used by subclassing tests, need to outlive sender_. | |
| 195 rtc::scoped_ptr<VideoEncoder> encoder_; | |
| 196 rtc::scoped_ptr<VideoSender> sender_; | |
| 197 rtc::scoped_ptr<FrameGenerator> generator_; | |
| 198 }; | |
| 199 | |
| 200 class TestVideoSenderWithMockEncoder : public TestVideoSender { | |
| 201 protected: | |
| 202 static const int kDefaultWidth = 1280; | |
| 203 static const int kDefaultHeight = 720; | |
| 204 static const int kNumberOfStreams = 3; | |
| 205 static const int kNumberOfLayers = 3; | |
| 206 static const int kUnusedPayloadType = 10; | |
| 207 | |
| 208 void SetUp() override { | |
| 209 TestVideoSender::SetUp(); | |
| 210 EXPECT_EQ( | |
| 211 0, | |
| 212 sender_->RegisterExternalEncoder(&encoder_, kUnusedPayloadType, false)); | |
| 213 memset(&settings_, 0, sizeof(settings_)); | |
| 214 EXPECT_EQ(0, VideoCodingModule::Codec(kVideoCodecVP8, &settings_)); | |
| 215 settings_.numberOfSimulcastStreams = kNumberOfStreams; | |
| 216 ConfigureStream(kDefaultWidth / 4, | |
| 217 kDefaultHeight / 4, | |
| 218 100, | |
| 219 &settings_.simulcastStream[0]); | |
| 220 ConfigureStream(kDefaultWidth / 2, | |
| 221 kDefaultHeight / 2, | |
| 222 500, | |
| 223 &settings_.simulcastStream[1]); | |
| 224 ConfigureStream( | |
| 225 kDefaultWidth, kDefaultHeight, 1200, &settings_.simulcastStream[2]); | |
| 226 settings_.plType = kUnusedPayloadType; // Use the mocked encoder. | |
| 227 generator_.reset( | |
| 228 new EmptyFrameGenerator(settings_.width, settings_.height)); | |
| 229 EXPECT_EQ(0, sender_->RegisterSendCodec(&settings_, 1, 1200)); | |
| 230 } | |
| 231 | |
| 232 void TearDown() override { sender_.reset(); } | |
| 233 | |
| 234 void ExpectIntraRequest(int stream) { | |
| 235 if (stream == -1) { | |
| 236 // No intra request expected. | |
| 237 EXPECT_CALL( | |
| 238 encoder_, | |
| 239 Encode(_, _, Pointee(ElementsAre(kVideoFrameDelta, kVideoFrameDelta, | |
| 240 kVideoFrameDelta)))) | |
| 241 .Times(1) | |
| 242 .WillRepeatedly(Return(0)); | |
| 243 return; | |
| 244 } | |
| 245 assert(stream >= 0); | |
| 246 assert(stream < kNumberOfStreams); | |
| 247 std::vector<FrameType> frame_types(kNumberOfStreams, kVideoFrameDelta); | |
| 248 frame_types[stream] = kVideoFrameKey; | |
| 249 EXPECT_CALL( | |
| 250 encoder_, | |
| 251 Encode(_, | |
| 252 _, | |
| 253 Pointee(ElementsAreArray(&frame_types[0], frame_types.size())))) | |
| 254 .Times(1).WillRepeatedly(Return(0)); | |
| 255 } | |
| 256 | |
| 257 static void ConfigureStream(int width, | |
| 258 int height, | |
| 259 int max_bitrate, | |
| 260 SimulcastStream* stream) { | |
| 261 assert(stream); | |
| 262 stream->width = width; | |
| 263 stream->height = height; | |
| 264 stream->maxBitrate = max_bitrate; | |
| 265 stream->numberOfTemporalLayers = kNumberOfLayers; | |
| 266 stream->qpMax = 45; | |
| 267 } | |
| 268 | |
| 269 VideoCodec settings_; | |
| 270 NiceMock<MockVideoEncoder> encoder_; | |
| 271 }; | |
| 272 | |
| 273 TEST_F(TestVideoSenderWithMockEncoder, TestIntraRequests) { | |
| 274 EXPECT_EQ(0, sender_->IntraFrameRequest(0)); | |
| 275 ExpectIntraRequest(0); | |
| 276 AddFrame(); | |
| 277 ExpectIntraRequest(-1); | |
| 278 AddFrame(); | |
| 279 | |
| 280 EXPECT_EQ(0, sender_->IntraFrameRequest(1)); | |
| 281 ExpectIntraRequest(1); | |
| 282 AddFrame(); | |
| 283 ExpectIntraRequest(-1); | |
| 284 AddFrame(); | |
| 285 | |
| 286 EXPECT_EQ(0, sender_->IntraFrameRequest(2)); | |
| 287 ExpectIntraRequest(2); | |
| 288 AddFrame(); | |
| 289 ExpectIntraRequest(-1); | |
| 290 AddFrame(); | |
| 291 | |
| 292 EXPECT_EQ(-1, sender_->IntraFrameRequest(3)); | |
| 293 ExpectIntraRequest(-1); | |
| 294 AddFrame(); | |
| 295 | |
| 296 EXPECT_EQ(-1, sender_->IntraFrameRequest(-1)); | |
| 297 ExpectIntraRequest(-1); | |
| 298 AddFrame(); | |
| 299 } | |
| 300 | |
| 301 TEST_F(TestVideoSenderWithMockEncoder, TestIntraRequestsInternalCapture) { | |
| 302 // De-register current external encoder. | |
| 303 EXPECT_EQ(0, | |
| 304 sender_->RegisterExternalEncoder(NULL, kUnusedPayloadType, false)); | |
| 305 // Register encoder with internal capture. | |
| 306 EXPECT_EQ( | |
| 307 0, sender_->RegisterExternalEncoder(&encoder_, kUnusedPayloadType, true)); | |
| 308 EXPECT_EQ(0, sender_->RegisterSendCodec(&settings_, 1, 1200)); | |
| 309 ExpectIntraRequest(0); | |
| 310 EXPECT_EQ(0, sender_->IntraFrameRequest(0)); | |
| 311 ExpectIntraRequest(1); | |
| 312 EXPECT_EQ(0, sender_->IntraFrameRequest(1)); | |
| 313 ExpectIntraRequest(2); | |
| 314 EXPECT_EQ(0, sender_->IntraFrameRequest(2)); | |
| 315 // No requests expected since these indices are out of bounds. | |
| 316 EXPECT_EQ(-1, sender_->IntraFrameRequest(3)); | |
| 317 EXPECT_EQ(-1, sender_->IntraFrameRequest(-1)); | |
| 318 } | |
| 319 | |
| 320 TEST_F(TestVideoSenderWithMockEncoder, EncoderFramerateUpdatedViaProcess) { | |
| 321 sender_->SetChannelParameters(settings_.startBitrate * 1000, 0, 200); | |
| 322 const int64_t kRateStatsWindowMs = 2000; | |
| 323 const uint32_t kInputFps = 20; | |
| 324 int64_t start_time = clock_.TimeInMilliseconds(); | |
| 325 while (clock_.TimeInMilliseconds() < start_time + kRateStatsWindowMs) { | |
| 326 AddFrame(); | |
| 327 clock_.AdvanceTimeMilliseconds(1000 / kInputFps); | |
| 328 } | |
| 329 EXPECT_CALL(encoder_, SetRates(_, kInputFps)).Times(1).WillOnce(Return(0)); | |
| 330 sender_->Process(); | |
| 331 AddFrame(); | |
| 332 } | |
| 333 | |
| 334 TEST_F(TestVideoSenderWithMockEncoder, | |
| 335 NoRedundantSetChannelParameterOrSetRatesCalls) { | |
| 336 const uint8_t kLossRate = 4; | |
| 337 const uint8_t kRtt = 200; | |
| 338 const int64_t kRateStatsWindowMs = 2000; | |
| 339 const uint32_t kInputFps = 20; | |
| 340 int64_t start_time = clock_.TimeInMilliseconds(); | |
| 341 // Expect initial call to SetChannelParameters. Rates are initialized through | |
| 342 // InitEncode and expects no additional call before the framerate (or bitrate) | |
| 343 // updates. | |
| 344 EXPECT_CALL(encoder_, SetChannelParameters(kLossRate, kRtt)) | |
| 345 .Times(1) | |
| 346 .WillOnce(Return(0)); | |
| 347 sender_->SetChannelParameters(settings_.startBitrate * 1000, kLossRate, kRtt); | |
| 348 while (clock_.TimeInMilliseconds() < start_time + kRateStatsWindowMs) { | |
| 349 AddFrame(); | |
| 350 clock_.AdvanceTimeMilliseconds(1000 / kInputFps); | |
| 351 } | |
| 352 // After process, input framerate should be updated but not ChannelParameters | |
| 353 // as they are the same as before. | |
| 354 EXPECT_CALL(encoder_, SetRates(_, kInputFps)).Times(1).WillOnce(Return(0)); | |
| 355 sender_->Process(); | |
| 356 AddFrame(); | |
| 357 // Call to SetChannelParameters with changed bitrate should call encoder | |
| 358 // SetRates but not encoder SetChannelParameters (that are unchanged). | |
| 359 EXPECT_CALL(encoder_, SetRates(2 * settings_.startBitrate, kInputFps)) | |
| 360 .Times(1) | |
| 361 .WillOnce(Return(0)); | |
| 362 sender_->SetChannelParameters(2 * settings_.startBitrate * 1000, kLossRate, | |
| 363 kRtt); | |
| 364 AddFrame(); | |
| 365 } | |
| 366 | |
| 367 class TestVideoSenderWithVp8 : public TestVideoSender { | |
| 368 public: | |
| 369 TestVideoSenderWithVp8() | |
| 370 : codec_bitrate_kbps_(300), available_bitrate_kbps_(1000) {} | |
| 371 | |
| 372 void SetUp() override { | |
| 373 TestVideoSender::SetUp(); | |
| 374 | |
| 375 const char* input_video = "foreman_cif"; | |
| 376 const int width = 352; | |
| 377 const int height = 288; | |
| 378 generator_.reset(FrameGenerator::CreateFromYuvFile( | |
| 379 std::vector<std::string>(1, test::ResourcePath(input_video, "yuv")), | |
| 380 width, height, 1)); | |
| 381 | |
| 382 codec_ = MakeVp8VideoCodec(width, height, 3); | |
| 383 codec_.minBitrate = 10; | |
| 384 codec_.startBitrate = codec_bitrate_kbps_; | |
| 385 codec_.maxBitrate = codec_bitrate_kbps_; | |
| 386 encoder_.reset(VP8Encoder::Create()); | |
| 387 ASSERT_EQ(0, sender_->RegisterExternalEncoder(encoder_.get(), codec_.plType, | |
| 388 false)); | |
| 389 EXPECT_EQ(0, sender_->RegisterSendCodec(&codec_, 1, 1200)); | |
| 390 } | |
| 391 | |
| 392 static VideoCodec MakeVp8VideoCodec(int width, | |
| 393 int height, | |
| 394 int temporal_layers) { | |
| 395 VideoCodec codec; | |
| 396 memset(&codec, 0, sizeof(codec)); | |
| 397 EXPECT_EQ(0, VideoCodingModule::Codec(kVideoCodecVP8, &codec)); | |
| 398 codec.width = width; | |
| 399 codec.height = height; | |
| 400 codec.codecSpecific.VP8.numberOfTemporalLayers = temporal_layers; | |
| 401 return codec; | |
| 402 } | |
| 403 | |
| 404 void InsertFrames(float framerate, float seconds) { | |
| 405 for (int i = 0; i < seconds * framerate; ++i) { | |
| 406 clock_.AdvanceTimeMilliseconds(1000.0f / framerate); | |
| 407 EXPECT_CALL(post_encode_callback_, Encoded(_, NULL, NULL)) | |
| 408 .WillOnce(Return(0)); | |
| 409 AddFrame(); | |
| 410 // SetChannelParameters needs to be called frequently to propagate | |
| 411 // framerate from the media optimization into the encoder. | |
| 412 // Note: SetChannelParameters fails if less than 2 frames are in the | |
| 413 // buffer since it will fail to calculate the framerate. | |
| 414 if (i != 0) { | |
| 415 EXPECT_EQ(VCM_OK, sender_->SetChannelParameters( | |
| 416 available_bitrate_kbps_ * 1000, 0, 200)); | |
| 417 } | |
| 418 } | |
| 419 } | |
| 420 | |
| 421 Vp8StreamInfo SimulateWithFramerate(float framerate) { | |
| 422 const float short_simulation_interval = 5.0; | |
| 423 const float long_simulation_interval = 10.0; | |
| 424 // It appears that this 5 seconds simulation is needed to allow | |
| 425 // bitrate and framerate to stabilize. | |
| 426 InsertFrames(framerate, short_simulation_interval); | |
| 427 packetization_callback_.Reset(); | |
| 428 | |
| 429 InsertFrames(framerate, long_simulation_interval); | |
| 430 return packetization_callback_.CalculateVp8StreamInfo(); | |
| 431 } | |
| 432 | |
| 433 protected: | |
| 434 VideoCodec codec_; | |
| 435 int codec_bitrate_kbps_; | |
| 436 int available_bitrate_kbps_; | |
| 437 }; | |
| 438 | |
| 439 TEST_F(TestVideoSenderWithVp8, | |
| 440 DISABLED_ON_IOS(DISABLED_ON_ANDROID(FixedTemporalLayersStrategy))) { | |
| 441 const int low_b = codec_bitrate_kbps_ * kVp8LayerRateAlloction[2][0]; | |
| 442 const int mid_b = codec_bitrate_kbps_ * kVp8LayerRateAlloction[2][1]; | |
| 443 const int high_b = codec_bitrate_kbps_ * kVp8LayerRateAlloction[2][2]; | |
| 444 { | |
| 445 Vp8StreamInfo expected = {{7.5, 15.0, 30.0}, {low_b, mid_b, high_b}}; | |
| 446 EXPECT_THAT(SimulateWithFramerate(30.0), MatchesVp8StreamInfo(expected)); | |
| 447 } | |
| 448 { | |
| 449 Vp8StreamInfo expected = {{3.75, 7.5, 15.0}, {low_b, mid_b, high_b}}; | |
| 450 EXPECT_THAT(SimulateWithFramerate(15.0), MatchesVp8StreamInfo(expected)); | |
| 451 } | |
| 452 } | |
| 453 | |
| 454 TEST_F(TestVideoSenderWithVp8, | |
| 455 DISABLED_ON_IOS(DISABLED_ON_ANDROID(RealTimeTemporalLayersStrategy))) { | |
| 456 Config extra_options; | |
| 457 extra_options.Set<TemporalLayers::Factory>( | |
| 458 new RealTimeTemporalLayersFactory()); | |
| 459 VideoCodec codec = MakeVp8VideoCodec(352, 288, 3); | |
| 460 codec.extra_options = &extra_options; | |
| 461 codec.minBitrate = 10; | |
| 462 codec.startBitrate = codec_bitrate_kbps_; | |
| 463 codec.maxBitrate = codec_bitrate_kbps_; | |
| 464 EXPECT_EQ(0, sender_->RegisterSendCodec(&codec, 1, 1200)); | |
| 465 | |
| 466 const int low_b = codec_bitrate_kbps_ * 0.4; | |
| 467 const int mid_b = codec_bitrate_kbps_ * 0.6; | |
| 468 const int high_b = codec_bitrate_kbps_; | |
| 469 | |
| 470 { | |
| 471 Vp8StreamInfo expected = {{7.5, 15.0, 30.0}, {low_b, mid_b, high_b}}; | |
| 472 EXPECT_THAT(SimulateWithFramerate(30.0), MatchesVp8StreamInfo(expected)); | |
| 473 } | |
| 474 { | |
| 475 Vp8StreamInfo expected = {{5.0, 10.0, 20.0}, {low_b, mid_b, high_b}}; | |
| 476 EXPECT_THAT(SimulateWithFramerate(20.0), MatchesVp8StreamInfo(expected)); | |
| 477 } | |
| 478 { | |
| 479 Vp8StreamInfo expected = {{7.5, 15.0, 15.0}, {mid_b, high_b, high_b}}; | |
| 480 EXPECT_THAT(SimulateWithFramerate(15.0), MatchesVp8StreamInfo(expected)); | |
| 481 } | |
| 482 { | |
| 483 Vp8StreamInfo expected = {{5.0, 10.0, 10.0}, {mid_b, high_b, high_b}}; | |
| 484 EXPECT_THAT(SimulateWithFramerate(10.0), MatchesVp8StreamInfo(expected)); | |
| 485 } | |
| 486 { | |
| 487 // TODO(andresp): Find out why this fails with framerate = 7.5 | |
| 488 Vp8StreamInfo expected = {{7.0, 7.0, 7.0}, {high_b, high_b, high_b}}; | |
| 489 EXPECT_THAT(SimulateWithFramerate(7.0), MatchesVp8StreamInfo(expected)); | |
| 490 } | |
| 491 } | |
| 492 } // namespace | |
| 493 } // namespace vcm | |
| 494 } // namespace webrtc | |
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Chromium Code Reviews
Issue 1417283007:
modules/video_coding refactorings (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master