| /* |
| * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "video/video_stream_encoder.h" |
| |
| #include <algorithm> |
| #include <limits> |
| #include <memory> |
| #include <utility> |
| |
| #include "absl/memory/memory.h" |
| #include "api/task_queue/default_task_queue_factory.h" |
| #include "api/test/mock_fec_controller_override.h" |
| #include "api/test/mock_video_encoder.h" |
| #include "api/video/builtin_video_bitrate_allocator_factory.h" |
| #include "api/video/i420_buffer.h" |
| #include "api/video/video_adaptation_reason.h" |
| #include "api/video/video_bitrate_allocation.h" |
| #include "api/video_codecs/video_encoder.h" |
| #include "api/video_codecs/vp8_temporal_layers.h" |
| #include "api/video_codecs/vp8_temporal_layers_factory.h" |
| #include "call/adaptation/test/fake_adaptation_constraint.h" |
| #include "call/adaptation/test/fake_adaptation_listener.h" |
| #include "call/adaptation/test/fake_resource.h" |
| #include "common_video/h264/h264_common.h" |
| #include "common_video/include/video_frame_buffer.h" |
| #include "media/base/video_adapter.h" |
| #include "modules/video_coding/codecs/vp9/include/vp9_globals.h" |
| #include "modules/video_coding/utility/quality_scaler.h" |
| #include "modules/video_coding/utility/simulcast_rate_allocator.h" |
| #include "rtc_base/fake_clock.h" |
| #include "rtc_base/gunit.h" |
| #include "rtc_base/logging.h" |
| #include "rtc_base/ref_counted_object.h" |
| #include "rtc_base/synchronization/mutex.h" |
| #include "system_wrappers/include/field_trial.h" |
| #include "system_wrappers/include/metrics.h" |
| #include "system_wrappers/include/sleep.h" |
| #include "test/encoder_settings.h" |
| #include "test/fake_encoder.h" |
| #include "test/field_trial.h" |
| #include "test/frame_forwarder.h" |
| #include "test/gmock.h" |
| #include "test/gtest.h" |
| #include "test/video_encoder_proxy_factory.h" |
| #include "video/send_statistics_proxy.h" |
| |
| namespace webrtc { |
| |
| using ::testing::_; |
| using ::testing::AllOf; |
| using ::testing::Eq; |
| using ::testing::Field; |
| using ::testing::Ge; |
| using ::testing::Gt; |
| using ::testing::Le; |
| using ::testing::Lt; |
| using ::testing::Matcher; |
| using ::testing::NiceMock; |
| using ::testing::Return; |
| using ::testing::StrictMock; |
| |
| namespace { |
| const int kMinPixelsPerFrame = 320 * 180; |
| const int kQpLow = 1; |
| const int kQpHigh = 2; |
| const int kMinFramerateFps = 2; |
| const int kMinBalancedFramerateFps = 7; |
| const int64_t kFrameTimeoutMs = 100; |
| const size_t kMaxPayloadLength = 1440; |
| const uint32_t kTargetBitrateBps = 1000000; |
| const uint32_t kStartBitrateBps = 600000; |
| const uint32_t kSimulcastTargetBitrateBps = 3150000; |
| const uint32_t kLowTargetBitrateBps = kTargetBitrateBps / 10; |
| const int kMaxInitialFramedrop = 4; |
| const int kDefaultFramerate = 30; |
| const int64_t kFrameIntervalMs = rtc::kNumMillisecsPerSec / kDefaultFramerate; |
| const int64_t kProcessIntervalMs = 1000; |
| const VideoEncoder::ResolutionBitrateLimits |
| kEncoderBitrateLimits540p(960 * 540, 100 * 1000, 100 * 1000, 2000 * 1000); |
| const VideoEncoder::ResolutionBitrateLimits |
| kEncoderBitrateLimits720p(1280 * 720, 200 * 1000, 200 * 1000, 4000 * 1000); |
| |
| uint8_t optimal_sps[] = {0, 0, 0, 1, H264::NaluType::kSps, |
| 0x00, 0x00, 0x03, 0x03, 0xF4, |
| 0x05, 0x03, 0xC7, 0xE0, 0x1B, |
| 0x41, 0x10, 0x8D, 0x00}; |
| |
| class TestBuffer : public webrtc::I420Buffer { |
| public: |
| TestBuffer(rtc::Event* event, int width, int height) |
| : I420Buffer(width, height), event_(event) {} |
| |
| private: |
| friend class rtc::RefCountedObject<TestBuffer>; |
| ~TestBuffer() override { |
| if (event_) |
| event_->Set(); |
| } |
| rtc::Event* const event_; |
| }; |
| |
| // A fake native buffer that can't be converted to I420. |
| class FakeNativeBuffer : public webrtc::VideoFrameBuffer { |
| public: |
| FakeNativeBuffer(rtc::Event* event, int width, int height) |
| : event_(event), width_(width), height_(height) {} |
| webrtc::VideoFrameBuffer::Type type() const override { return Type::kNative; } |
| int width() const override { return width_; } |
| int height() const override { return height_; } |
| rtc::scoped_refptr<webrtc::I420BufferInterface> ToI420() override { |
| return nullptr; |
| } |
| |
| private: |
| friend class rtc::RefCountedObject<FakeNativeBuffer>; |
| ~FakeNativeBuffer() override { |
| if (event_) |
| event_->Set(); |
| } |
| rtc::Event* const event_; |
| const int width_; |
| const int height_; |
| }; |
| |
| class CpuOveruseDetectorProxy : public OveruseFrameDetector { |
| public: |
| explicit CpuOveruseDetectorProxy(CpuOveruseMetricsObserver* metrics_observer) |
| : OveruseFrameDetector(metrics_observer), |
| last_target_framerate_fps_(-1), |
| framerate_updated_event_(true /* manual_reset */, |
| false /* initially_signaled */) {} |
| virtual ~CpuOveruseDetectorProxy() {} |
| |
| void OnTargetFramerateUpdated(int framerate_fps) override { |
| MutexLock lock(&lock_); |
| last_target_framerate_fps_ = framerate_fps; |
| OveruseFrameDetector::OnTargetFramerateUpdated(framerate_fps); |
| framerate_updated_event_.Set(); |
| } |
| |
| int GetLastTargetFramerate() { |
| MutexLock lock(&lock_); |
| return last_target_framerate_fps_; |
| } |
| |
| CpuOveruseOptions GetOptions() { return options_; } |
| |
| rtc::Event* framerate_updated_event() { return &framerate_updated_event_; } |
| |
| private: |
| Mutex lock_; |
| int last_target_framerate_fps_ RTC_GUARDED_BY(lock_); |
| rtc::Event framerate_updated_event_; |
| }; |
| |
| class FakeQualityScalerQpUsageHandlerCallback |
| : public QualityScalerQpUsageHandlerCallbackInterface { |
| public: |
| FakeQualityScalerQpUsageHandlerCallback() |
| : QualityScalerQpUsageHandlerCallbackInterface(), |
| qp_usage_handled_event_(/*manual_reset=*/true, |
| /*initially_signaled=*/false), |
| clear_qp_samples_result_(absl::nullopt) {} |
| ~FakeQualityScalerQpUsageHandlerCallback() override { |
| RTC_DCHECK(clear_qp_samples_result_.has_value()); |
| } |
| |
| void OnQpUsageHandled(bool clear_qp_samples) override { |
| clear_qp_samples_result_ = clear_qp_samples; |
| qp_usage_handled_event_.Set(); |
| } |
| |
| bool WaitForQpUsageHandled() { return qp_usage_handled_event_.Wait(5000); } |
| |
| absl::optional<bool> clear_qp_samples_result() const { |
| return clear_qp_samples_result_; |
| } |
| |
| private: |
| rtc::Event qp_usage_handled_event_; |
| absl::optional<bool> clear_qp_samples_result_; |
| }; |
| |
| class FakeVideoSourceRestrictionsListener |
| : public VideoSourceRestrictionsListener { |
| public: |
| FakeVideoSourceRestrictionsListener() |
| : was_restrictions_updated_(false), restrictions_updated_event_() {} |
| ~FakeVideoSourceRestrictionsListener() override { |
| RTC_DCHECK(was_restrictions_updated_); |
| } |
| |
| rtc::Event* restrictions_updated_event() { |
| return &restrictions_updated_event_; |
| } |
| |
| // VideoSourceRestrictionsListener implementation. |
| void OnVideoSourceRestrictionsUpdated( |
| VideoSourceRestrictions restrictions, |
| const VideoAdaptationCounters& adaptation_counters, |
| rtc::scoped_refptr<Resource> reason, |
| const VideoSourceRestrictions& unfiltered_restrictions) override { |
| was_restrictions_updated_ = true; |
| restrictions_updated_event_.Set(); |
| } |
| |
| private: |
| bool was_restrictions_updated_; |
| rtc::Event restrictions_updated_event_; |
| }; |
| |
| auto WantsFps(Matcher<int> fps_matcher) { |
| return Field("max_framerate_fps", &rtc::VideoSinkWants::max_framerate_fps, |
| fps_matcher); |
| } |
| |
| auto WantsMaxPixels(Matcher<int> max_pixel_matcher) { |
| return Field("max_pixel_count", &rtc::VideoSinkWants::max_pixel_count, |
| AllOf(max_pixel_matcher, Gt(0))); |
| } |
| |
| auto ResolutionMax() { |
| return AllOf( |
| WantsMaxPixels(Eq(std::numeric_limits<int>::max())), |
| Field("target_pixel_count", &rtc::VideoSinkWants::target_pixel_count, |
| Eq(absl::nullopt))); |
| } |
| |
| auto FpsMax() { |
| return WantsFps(Eq(kDefaultFramerate)); |
| } |
| |
| auto FpsUnlimited() { |
| return WantsFps(Eq(std::numeric_limits<int>::max())); |
| } |
| |
| auto FpsMatchesResolutionMax(Matcher<int> fps_matcher) { |
| return AllOf(WantsFps(fps_matcher), ResolutionMax()); |
| } |
| |
| auto FpsMaxResolutionMatches(Matcher<int> pixel_matcher) { |
| return AllOf(FpsMax(), WantsMaxPixels(pixel_matcher)); |
| } |
| |
| auto FpsMaxResolutionMax() { |
| return AllOf(FpsMax(), ResolutionMax()); |
| } |
| |
| auto UnlimitedSinkWants() { |
| return AllOf(FpsUnlimited(), ResolutionMax()); |
| } |
| |
| auto FpsInRangeForPixelsInBalanced(int last_frame_pixels) { |
| Matcher<int> fps_range_matcher; |
| |
| if (last_frame_pixels <= 320 * 240) { |
| fps_range_matcher = AllOf(Ge(7), Le(10)); |
| } else if (last_frame_pixels <= 480 * 270) { |
| fps_range_matcher = AllOf(Ge(10), Le(15)); |
| } else if (last_frame_pixels <= 640 * 480) { |
| fps_range_matcher = Ge(15); |
| } else { |
| fps_range_matcher = Eq(kDefaultFramerate); |
| } |
| return Field("max_framerate_fps", &rtc::VideoSinkWants::max_framerate_fps, |
| fps_range_matcher); |
| } |
| |
| auto FpsEqResolutionEqTo(const rtc::VideoSinkWants& other_wants) { |
| return AllOf(WantsFps(Eq(other_wants.max_framerate_fps)), |
| WantsMaxPixels(Eq(other_wants.max_pixel_count))); |
| } |
| |
| auto FpsMaxResolutionLt(const rtc::VideoSinkWants& other_wants) { |
| return AllOf(FpsMax(), WantsMaxPixels(Lt(other_wants.max_pixel_count))); |
| } |
| |
| auto FpsMaxResolutionGt(const rtc::VideoSinkWants& other_wants) { |
| return AllOf(FpsMax(), WantsMaxPixels(Gt(other_wants.max_pixel_count))); |
| } |
| |
| auto FpsLtResolutionEq(const rtc::VideoSinkWants& other_wants) { |
| return AllOf(WantsFps(Lt(other_wants.max_framerate_fps)), |
| WantsMaxPixels(Eq(other_wants.max_pixel_count))); |
| } |
| |
| auto FpsGtResolutionEq(const rtc::VideoSinkWants& other_wants) { |
| return AllOf(WantsFps(Gt(other_wants.max_framerate_fps)), |
| WantsMaxPixels(Eq(other_wants.max_pixel_count))); |
| } |
| |
| auto FpsEqResolutionLt(const rtc::VideoSinkWants& other_wants) { |
| return AllOf(WantsFps(Eq(other_wants.max_framerate_fps)), |
| WantsMaxPixels(Lt(other_wants.max_pixel_count))); |
| } |
| |
| auto FpsEqResolutionGt(const rtc::VideoSinkWants& other_wants) { |
| return AllOf(WantsFps(Eq(other_wants.max_framerate_fps)), |
| WantsMaxPixels(Gt(other_wants.max_pixel_count))); |
| } |
| |
| class VideoStreamEncoderUnderTest : public VideoStreamEncoder { |
| public: |
| VideoStreamEncoderUnderTest(SendStatisticsProxy* stats_proxy, |
| const VideoStreamEncoderSettings& settings, |
| TaskQueueFactory* task_queue_factory) |
| : VideoStreamEncoder(Clock::GetRealTimeClock(), |
| 1 /* number_of_cores */, |
| stats_proxy, |
| settings, |
| std::unique_ptr<OveruseFrameDetector>( |
| overuse_detector_proxy_ = |
| new CpuOveruseDetectorProxy(stats_proxy)), |
| task_queue_factory), |
| fake_cpu_resource_(FakeResource::Create("FakeResource[CPU]")), |
| fake_quality_resource_(FakeResource::Create("FakeResource[QP]")), |
| fake_adaptation_constraint_("FakeAdaptationConstraint") { |
| InjectAdaptationResource(fake_quality_resource_, |
| VideoAdaptationReason::kQuality); |
| InjectAdaptationResource(fake_cpu_resource_, VideoAdaptationReason::kCpu); |
| InjectAdaptationConstraint(&fake_adaptation_constraint_); |
| } |
| |
| void SetSourceAndWaitForRestrictionsUpdated( |
| rtc::VideoSourceInterface<VideoFrame>* source, |
| const DegradationPreference& degradation_preference) { |
| FakeVideoSourceRestrictionsListener listener; |
| AddRestrictionsListenerForTesting(&listener); |
| SetSource(source, degradation_preference); |
| listener.restrictions_updated_event()->Wait(5000); |
| RemoveRestrictionsListenerForTesting(&listener); |
| } |
| |
| void SetSourceAndWaitForFramerateUpdated( |
| rtc::VideoSourceInterface<VideoFrame>* source, |
| const DegradationPreference& degradation_preference) { |
| overuse_detector_proxy_->framerate_updated_event()->Reset(); |
| SetSource(source, degradation_preference); |
| overuse_detector_proxy_->framerate_updated_event()->Wait(5000); |
| } |
| |
| void OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate target_bitrate, |
| DataRate stable_target_bitrate, |
| DataRate link_allocation, |
| uint8_t fraction_lost, |
| int64_t round_trip_time_ms, |
| double cwnd_reduce_ratio) { |
| OnBitrateUpdated(target_bitrate, stable_target_bitrate, link_allocation, |
| fraction_lost, round_trip_time_ms, cwnd_reduce_ratio); |
| // Bitrate is updated on the encoder queue. |
| WaitUntilTaskQueueIsIdle(); |
| // Give the managed resources time to react to the new bitrate. |
| // TODO(hbos): Can we await an appropriate event instead? |
| WaitUntilAdaptationTaskQueueIsIdle(); |
| } |
| |
| void WaitUntilAdaptationTaskQueueIsIdle() { |
| rtc::Event event; |
| resource_adaptation_queue()->PostTask([&event] { event.Set(); }); |
| ASSERT_TRUE(event.Wait(5000)); |
| } |
| |
| // This is used as a synchronisation mechanism, to make sure that the |
| // encoder queue is not blocked before we start sending it frames. |
| void WaitUntilTaskQueueIsIdle() { |
| rtc::Event event; |
| encoder_queue()->PostTask([&event] { event.Set(); }); |
| ASSERT_TRUE(event.Wait(5000)); |
| } |
| |
| // Triggers resource usage measurements on the fake CPU resource. |
| void TriggerCpuOveruse() { |
| rtc::Event event; |
| resource_adaptation_queue()->PostTask([this, &event] { |
| fake_cpu_resource_->SetUsageState(ResourceUsageState::kOveruse); |
| event.Set(); |
| }); |
| ASSERT_TRUE(event.Wait(5000)); |
| } |
| void TriggerCpuUnderuse() { |
| rtc::Event event; |
| resource_adaptation_queue()->PostTask([this, &event] { |
| fake_cpu_resource_->SetUsageState(ResourceUsageState::kUnderuse); |
| event.Set(); |
| }); |
| ASSERT_TRUE(event.Wait(5000)); |
| } |
| |
| // Triggers resource usage measurements on the fake quality resource. |
| void TriggerQualityLow() { |
| rtc::Event event; |
| resource_adaptation_queue()->PostTask([this, &event] { |
| fake_quality_resource_->SetUsageState(ResourceUsageState::kOveruse); |
| event.Set(); |
| }); |
| ASSERT_TRUE(event.Wait(5000)); |
| } |
| void TriggerQualityHigh() { |
| rtc::Event event; |
| resource_adaptation_queue()->PostTask([this, &event] { |
| fake_quality_resource_->SetUsageState(ResourceUsageState::kUnderuse); |
| event.Set(); |
| }); |
| ASSERT_TRUE(event.Wait(5000)); |
| } |
| |
| // Fakes high QP resource usage measurements on the real |
| // QualityScalerResource. Returns whether or not QP samples would have been |
| // cleared if this had been a real signal from the QualityScaler. |
| bool TriggerQualityScalerHighQpAndReturnIfQpSamplesShouldBeCleared() { |
| rtc::scoped_refptr<FakeQualityScalerQpUsageHandlerCallback> callback = |
| new FakeQualityScalerQpUsageHandlerCallback(); |
| encoder_queue()->PostTask([this, callback] { |
| // This will cause a "ping" between adaptation task queue and encoder |
| // queue. When we have the result, the |callback| will be notified. |
| quality_scaler_resource_for_testing()->OnReportQpUsageHigh(callback); |
| }); |
| EXPECT_TRUE(callback->WaitForQpUsageHandled()); |
| EXPECT_TRUE(callback->clear_qp_samples_result().has_value()); |
| return callback->clear_qp_samples_result().value(); |
| } |
| |
| CpuOveruseDetectorProxy* overuse_detector_proxy_; |
| rtc::scoped_refptr<FakeResource> fake_cpu_resource_; |
| rtc::scoped_refptr<FakeResource> fake_quality_resource_; |
| FakeAdaptationConstraint fake_adaptation_constraint_; |
| }; |
| |
| class VideoStreamFactory |
| : public VideoEncoderConfig::VideoStreamFactoryInterface { |
| public: |
| explicit VideoStreamFactory(size_t num_temporal_layers, int framerate) |
| : num_temporal_layers_(num_temporal_layers), framerate_(framerate) { |
| EXPECT_GT(num_temporal_layers, 0u); |
| EXPECT_GT(framerate, 0); |
| } |
| |
| private: |
| std::vector<VideoStream> CreateEncoderStreams( |
| int width, |
| int height, |
| const VideoEncoderConfig& encoder_config) override { |
| std::vector<VideoStream> streams = |
| test::CreateVideoStreams(width, height, encoder_config); |
| for (VideoStream& stream : streams) { |
| stream.num_temporal_layers = num_temporal_layers_; |
| stream.max_framerate = framerate_; |
| } |
| return streams; |
| } |
| |
| const size_t num_temporal_layers_; |
| const int framerate_; |
| }; |
| |
| // Simulates simulcast behavior and makes highest stream resolutions divisible |
| // by 4. |
| class CroppingVideoStreamFactory |
| : public VideoEncoderConfig::VideoStreamFactoryInterface { |
| public: |
| explicit CroppingVideoStreamFactory(size_t num_temporal_layers, int framerate) |
| : num_temporal_layers_(num_temporal_layers), framerate_(framerate) { |
| EXPECT_GT(num_temporal_layers, 0u); |
| EXPECT_GT(framerate, 0); |
| } |
| |
| private: |
| std::vector<VideoStream> CreateEncoderStreams( |
| int width, |
| int height, |
| const VideoEncoderConfig& encoder_config) override { |
| std::vector<VideoStream> streams = test::CreateVideoStreams( |
| width - width % 4, height - height % 4, encoder_config); |
| for (VideoStream& stream : streams) { |
| stream.num_temporal_layers = num_temporal_layers_; |
| stream.max_framerate = framerate_; |
| } |
| return streams; |
| } |
| |
| const size_t num_temporal_layers_; |
| const int framerate_; |
| }; |
| |
| class AdaptingFrameForwarder : public test::FrameForwarder { |
| public: |
| AdaptingFrameForwarder() : adaptation_enabled_(false) {} |
| ~AdaptingFrameForwarder() override {} |
| |
| void set_adaptation_enabled(bool enabled) { |
| MutexLock lock(&mutex_); |
| adaptation_enabled_ = enabled; |
| } |
| |
| bool adaption_enabled() const { |
| MutexLock lock(&mutex_); |
| return adaptation_enabled_; |
| } |
| |
| rtc::VideoSinkWants last_wants() const { |
| MutexLock lock(&mutex_); |
| return last_wants_; |
| } |
| |
| absl::optional<int> last_sent_width() const { return last_width_; } |
| absl::optional<int> last_sent_height() const { return last_height_; } |
| |
| void IncomingCapturedFrame(const VideoFrame& video_frame) override { |
| int cropped_width = 0; |
| int cropped_height = 0; |
| int out_width = 0; |
| int out_height = 0; |
| if (adaption_enabled()) { |
| if (adapter_.AdaptFrameResolution( |
| video_frame.width(), video_frame.height(), |
| video_frame.timestamp_us() * 1000, &cropped_width, |
| &cropped_height, &out_width, &out_height)) { |
| VideoFrame adapted_frame = |
| VideoFrame::Builder() |
| .set_video_frame_buffer(new rtc::RefCountedObject<TestBuffer>( |
| nullptr, out_width, out_height)) |
| .set_timestamp_rtp(99) |
| .set_timestamp_ms(99) |
| .set_rotation(kVideoRotation_0) |
| .build(); |
| adapted_frame.set_ntp_time_ms(video_frame.ntp_time_ms()); |
| if (video_frame.has_update_rect()) { |
| adapted_frame.set_update_rect( |
| video_frame.update_rect().ScaleWithFrame( |
| video_frame.width(), video_frame.height(), 0, 0, |
| video_frame.width(), video_frame.height(), out_width, |
| out_height)); |
| } |
| test::FrameForwarder::IncomingCapturedFrame(adapted_frame); |
| last_width_.emplace(adapted_frame.width()); |
| last_height_.emplace(adapted_frame.height()); |
| } else { |
| last_width_ = absl::nullopt; |
| last_height_ = absl::nullopt; |
| } |
| } else { |
| test::FrameForwarder::IncomingCapturedFrame(video_frame); |
| last_width_.emplace(video_frame.width()); |
| last_height_.emplace(video_frame.height()); |
| } |
| } |
| |
| void AddOrUpdateSink(rtc::VideoSinkInterface<VideoFrame>* sink, |
| const rtc::VideoSinkWants& wants) override { |
| MutexLock lock(&mutex_); |
| last_wants_ = sink_wants_locked(); |
| adapter_.OnSinkWants(wants); |
| test::FrameForwarder::AddOrUpdateSinkLocked(sink, wants); |
| } |
| cricket::VideoAdapter adapter_; |
| bool adaptation_enabled_ RTC_GUARDED_BY(mutex_); |
| rtc::VideoSinkWants last_wants_ RTC_GUARDED_BY(mutex_); |
| absl::optional<int> last_width_; |
| absl::optional<int> last_height_; |
| }; |
| |
| // TODO(nisse): Mock only VideoStreamEncoderObserver. |
| class MockableSendStatisticsProxy : public SendStatisticsProxy { |
| public: |
| MockableSendStatisticsProxy(Clock* clock, |
| const VideoSendStream::Config& config, |
| VideoEncoderConfig::ContentType content_type) |
| : SendStatisticsProxy(clock, config, content_type) {} |
| |
| VideoSendStream::Stats GetStats() override { |
| MutexLock lock(&lock_); |
| if (mock_stats_) |
| return *mock_stats_; |
| return SendStatisticsProxy::GetStats(); |
| } |
| |
| int GetInputFrameRate() const override { |
| MutexLock lock(&lock_); |
| if (mock_stats_) |
| return mock_stats_->input_frame_rate; |
| return SendStatisticsProxy::GetInputFrameRate(); |
| } |
| void SetMockStats(const VideoSendStream::Stats& stats) { |
| MutexLock lock(&lock_); |
| mock_stats_.emplace(stats); |
| } |
| |
| void ResetMockStats() { |
| MutexLock lock(&lock_); |
| mock_stats_.reset(); |
| } |
| |
| private: |
| mutable Mutex lock_; |
| absl::optional<VideoSendStream::Stats> mock_stats_ RTC_GUARDED_BY(lock_); |
| }; |
| |
| class MockBitrateObserver : public VideoBitrateAllocationObserver { |
| public: |
| MOCK_METHOD(void, |
| OnBitrateAllocationUpdated, |
| (const VideoBitrateAllocation&), |
| (override)); |
| }; |
| |
| class MockEncoderSelector |
| : public VideoEncoderFactory::EncoderSelectorInterface { |
| public: |
| MOCK_METHOD(void, |
| OnCurrentEncoder, |
| (const SdpVideoFormat& format), |
| (override)); |
| MOCK_METHOD(absl::optional<SdpVideoFormat>, |
| OnAvailableBitrate, |
| (const DataRate& rate), |
| (override)); |
| MOCK_METHOD(absl::optional<SdpVideoFormat>, OnEncoderBroken, (), (override)); |
| }; |
| |
| } // namespace |
| |
| class VideoStreamEncoderTest : public ::testing::Test { |
| public: |
| static const int kDefaultTimeoutMs = 30 * 1000; |
| |
| VideoStreamEncoderTest() |
| : video_send_config_(VideoSendStream::Config(nullptr)), |
| codec_width_(320), |
| codec_height_(240), |
| max_framerate_(kDefaultFramerate), |
| task_queue_factory_(CreateDefaultTaskQueueFactory()), |
| fake_encoder_(), |
| encoder_factory_(&fake_encoder_), |
| stats_proxy_(new MockableSendStatisticsProxy( |
| Clock::GetRealTimeClock(), |
| video_send_config_, |
| webrtc::VideoEncoderConfig::ContentType::kRealtimeVideo)), |
| sink_(&fake_encoder_) {} |
| |
| void SetUp() override { |
| metrics::Reset(); |
| video_send_config_ = VideoSendStream::Config(nullptr); |
| video_send_config_.encoder_settings.encoder_factory = &encoder_factory_; |
| video_send_config_.encoder_settings.bitrate_allocator_factory = |
| &bitrate_allocator_factory_; |
| video_send_config_.rtp.payload_name = "FAKE"; |
| video_send_config_.rtp.payload_type = 125; |
| |
| VideoEncoderConfig video_encoder_config; |
| test::FillEncoderConfiguration(kVideoCodecVP8, 1, &video_encoder_config); |
| video_encoder_config.video_stream_factory = |
| new rtc::RefCountedObject<VideoStreamFactory>(1, max_framerate_); |
| video_encoder_config_ = video_encoder_config.Copy(); |
| |
| // Framerate limit is specified by the VideoStreamFactory. |
| std::vector<VideoStream> streams = |
| video_encoder_config.video_stream_factory->CreateEncoderStreams( |
| codec_width_, codec_height_, video_encoder_config); |
| max_framerate_ = streams[0].max_framerate; |
| fake_clock_.SetTime(Timestamp::Micros(1234)); |
| |
| ConfigureEncoder(std::move(video_encoder_config)); |
| } |
| |
| void ConfigureEncoder(VideoEncoderConfig video_encoder_config) { |
| if (video_stream_encoder_) |
| video_stream_encoder_->Stop(); |
| video_stream_encoder_.reset(new VideoStreamEncoderUnderTest( |
| stats_proxy_.get(), video_send_config_.encoder_settings, |
| task_queue_factory_.get())); |
| video_stream_encoder_->SetSink(&sink_, false /* rotation_applied */); |
| video_stream_encoder_->SetSource( |
| &video_source_, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| video_stream_encoder_->SetStartBitrate(kTargetBitrateBps); |
| video_stream_encoder_->ConfigureEncoder(std::move(video_encoder_config), |
| kMaxPayloadLength); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| } |
| |
| void ResetEncoder(const std::string& payload_name, |
| size_t num_streams, |
| size_t num_temporal_layers, |
| unsigned char num_spatial_layers, |
| bool screenshare) { |
| video_send_config_.rtp.payload_name = payload_name; |
| |
| VideoEncoderConfig video_encoder_config; |
| video_encoder_config.codec_type = PayloadStringToCodecType(payload_name); |
| video_encoder_config.number_of_streams = num_streams; |
| video_encoder_config.max_bitrate_bps = |
| num_streams == 1 ? kTargetBitrateBps : kSimulcastTargetBitrateBps; |
| video_encoder_config.video_stream_factory = |
| new rtc::RefCountedObject<VideoStreamFactory>(num_temporal_layers, |
| kDefaultFramerate); |
| video_encoder_config.content_type = |
| screenshare ? VideoEncoderConfig::ContentType::kScreen |
| : VideoEncoderConfig::ContentType::kRealtimeVideo; |
| if (payload_name == "VP9") { |
| VideoCodecVP9 vp9_settings = VideoEncoder::GetDefaultVp9Settings(); |
| vp9_settings.numberOfSpatialLayers = num_spatial_layers; |
| vp9_settings.automaticResizeOn = num_spatial_layers <= 1; |
| video_encoder_config.encoder_specific_settings = |
| new rtc::RefCountedObject< |
| VideoEncoderConfig::Vp9EncoderSpecificSettings>(vp9_settings); |
| } |
| ConfigureEncoder(std::move(video_encoder_config)); |
| } |
| |
| VideoFrame CreateFrame(int64_t ntp_time_ms, |
| rtc::Event* destruction_event) const { |
| VideoFrame frame = |
| VideoFrame::Builder() |
| .set_video_frame_buffer(new rtc::RefCountedObject<TestBuffer>( |
| destruction_event, codec_width_, codec_height_)) |
| .set_timestamp_rtp(99) |
| .set_timestamp_ms(99) |
| .set_rotation(kVideoRotation_0) |
| .build(); |
| frame.set_ntp_time_ms(ntp_time_ms); |
| return frame; |
| } |
| |
| VideoFrame CreateFrameWithUpdatedPixel(int64_t ntp_time_ms, |
| rtc::Event* destruction_event, |
| int offset_x) const { |
| VideoFrame frame = |
| VideoFrame::Builder() |
| .set_video_frame_buffer(new rtc::RefCountedObject<TestBuffer>( |
| destruction_event, codec_width_, codec_height_)) |
| .set_timestamp_rtp(99) |
| .set_timestamp_ms(99) |
| .set_rotation(kVideoRotation_0) |
| .set_update_rect(VideoFrame::UpdateRect{offset_x, 0, 1, 1}) |
| .build(); |
| frame.set_ntp_time_ms(ntp_time_ms); |
| return frame; |
| } |
| |
| VideoFrame CreateFrame(int64_t ntp_time_ms, int width, int height) const { |
| VideoFrame frame = |
| VideoFrame::Builder() |
| .set_video_frame_buffer( |
| new rtc::RefCountedObject<TestBuffer>(nullptr, width, height)) |
| .set_timestamp_rtp(99) |
| .set_timestamp_ms(99) |
| .set_rotation(kVideoRotation_0) |
| .build(); |
| frame.set_ntp_time_ms(ntp_time_ms); |
| frame.set_timestamp_us(ntp_time_ms * 1000); |
| return frame; |
| } |
| |
| VideoFrame CreateFakeNativeFrame(int64_t ntp_time_ms, |
| rtc::Event* destruction_event, |
| int width, |
| int height) const { |
| VideoFrame frame = |
| VideoFrame::Builder() |
| .set_video_frame_buffer(new rtc::RefCountedObject<FakeNativeBuffer>( |
| destruction_event, width, height)) |
| .set_timestamp_rtp(99) |
| .set_timestamp_ms(99) |
| .set_rotation(kVideoRotation_0) |
| .build(); |
| frame.set_ntp_time_ms(ntp_time_ms); |
| return frame; |
| } |
| |
| VideoFrame CreateFakeNativeFrame(int64_t ntp_time_ms, |
| rtc::Event* destruction_event) const { |
| return CreateFakeNativeFrame(ntp_time_ms, destruction_event, codec_width_, |
| codec_height_); |
| } |
| |
| void VerifyAllocatedBitrate(const VideoBitrateAllocation& expected_bitrate) { |
| MockBitrateObserver bitrate_observer; |
| video_stream_encoder_->SetBitrateAllocationObserver(&bitrate_observer); |
| |
| EXPECT_CALL(bitrate_observer, OnBitrateAllocationUpdated(expected_bitrate)) |
| .Times(1); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(1, codec_width_, codec_height_)); |
| WaitForEncodedFrame(1); |
| } |
| |
| void WaitForEncodedFrame(int64_t expected_ntp_time) { |
| sink_.WaitForEncodedFrame(expected_ntp_time); |
| fake_clock_.AdvanceTime(TimeDelta::Seconds(1) / max_framerate_); |
| } |
| |
| bool TimedWaitForEncodedFrame(int64_t expected_ntp_time, int64_t timeout_ms) { |
| bool ok = sink_.TimedWaitForEncodedFrame(expected_ntp_time, timeout_ms); |
| fake_clock_.AdvanceTime(TimeDelta::Seconds(1) / max_framerate_); |
| return ok; |
| } |
| |
| void WaitForEncodedFrame(uint32_t expected_width, uint32_t expected_height) { |
| sink_.WaitForEncodedFrame(expected_width, expected_height); |
| fake_clock_.AdvanceTime(TimeDelta::Seconds(1) / max_framerate_); |
| } |
| |
| void ExpectDroppedFrame() { |
| sink_.ExpectDroppedFrame(); |
| fake_clock_.AdvanceTime(TimeDelta::Seconds(1) / max_framerate_); |
| } |
| |
| bool WaitForFrame(int64_t timeout_ms) { |
| bool ok = sink_.WaitForFrame(timeout_ms); |
| fake_clock_.AdvanceTime(TimeDelta::Seconds(1) / max_framerate_); |
| return ok; |
| } |
| |
| class TestEncoder : public test::FakeEncoder { |
| public: |
| TestEncoder() : FakeEncoder(Clock::GetRealTimeClock()) {} |
| |
| VideoCodec codec_config() const { |
| MutexLock lock(&mutex_); |
| return config_; |
| } |
| |
| void BlockNextEncode() { |
| MutexLock lock(&local_mutex_); |
| block_next_encode_ = true; |
| } |
| |
| VideoEncoder::EncoderInfo GetEncoderInfo() const override { |
| MutexLock lock(&local_mutex_); |
| EncoderInfo info; |
| if (initialized_ == EncoderState::kInitialized) { |
| if (quality_scaling_) { |
| info.scaling_settings = VideoEncoder::ScalingSettings( |
| kQpLow, kQpHigh, kMinPixelsPerFrame); |
| } |
| info.is_hardware_accelerated = is_hardware_accelerated_; |
| for (int i = 0; i < kMaxSpatialLayers; ++i) { |
| if (temporal_layers_supported_[i]) { |
| int num_layers = temporal_layers_supported_[i].value() ? 2 : 1; |
| info.fps_allocation[i].resize(num_layers); |
| } |
| } |
| } |
| |
| info.resolution_bitrate_limits = resolution_bitrate_limits_; |
| info.requested_resolution_alignment = requested_resolution_alignment_; |
| return info; |
| } |
| |
| int32_t RegisterEncodeCompleteCallback( |
| EncodedImageCallback* callback) override { |
| MutexLock lock(&local_mutex_); |
| encoded_image_callback_ = callback; |
| return FakeEncoder::RegisterEncodeCompleteCallback(callback); |
| } |
| |
| void ContinueEncode() { continue_encode_event_.Set(); } |
| |
| void CheckLastTimeStampsMatch(int64_t ntp_time_ms, |
| uint32_t timestamp) const { |
| MutexLock lock(&local_mutex_); |
| EXPECT_EQ(timestamp_, timestamp); |
| EXPECT_EQ(ntp_time_ms_, ntp_time_ms); |
| } |
| |
| void SetQualityScaling(bool b) { |
| MutexLock lock(&local_mutex_); |
| quality_scaling_ = b; |
| } |
| |
| void SetRequestedResolutionAlignment(int requested_resolution_alignment) { |
| MutexLock lock(&local_mutex_); |
| requested_resolution_alignment_ = requested_resolution_alignment; |
| } |
| |
| void SetIsHardwareAccelerated(bool is_hardware_accelerated) { |
| MutexLock lock(&local_mutex_); |
| is_hardware_accelerated_ = is_hardware_accelerated; |
| } |
| |
| void SetTemporalLayersSupported(size_t spatial_idx, bool supported) { |
| RTC_DCHECK_LT(spatial_idx, kMaxSpatialLayers); |
| MutexLock lock(&local_mutex_); |
| temporal_layers_supported_[spatial_idx] = supported; |
| } |
| |
| void SetResolutionBitrateLimits( |
| std::vector<ResolutionBitrateLimits> thresholds) { |
| MutexLock lock(&local_mutex_); |
| resolution_bitrate_limits_ = thresholds; |
| } |
| |
| void ForceInitEncodeFailure(bool force_failure) { |
| MutexLock lock(&local_mutex_); |
| force_init_encode_failed_ = force_failure; |
| } |
| |
| void SimulateOvershoot(double rate_factor) { |
| MutexLock lock(&local_mutex_); |
| rate_factor_ = rate_factor; |
| } |
| |
| uint32_t GetLastFramerate() const { |
| MutexLock lock(&local_mutex_); |
| return last_framerate_; |
| } |
| |
| VideoFrame::UpdateRect GetLastUpdateRect() const { |
| MutexLock lock(&local_mutex_); |
| return last_update_rect_; |
| } |
| |
| const std::vector<VideoFrameType>& LastFrameTypes() const { |
| MutexLock lock(&local_mutex_); |
| return last_frame_types_; |
| } |
| |
| void InjectFrame(const VideoFrame& input_image, bool keyframe) { |
| const std::vector<VideoFrameType> frame_type = { |
| keyframe ? VideoFrameType::kVideoFrameKey |
| : VideoFrameType::kVideoFrameDelta}; |
| { |
| MutexLock lock(&local_mutex_); |
| last_frame_types_ = frame_type; |
| } |
| FakeEncoder::Encode(input_image, &frame_type); |
| } |
| |
| void InjectEncodedImage(const EncodedImage& image) { |
| MutexLock lock(&local_mutex_); |
| encoded_image_callback_->OnEncodedImage(image, nullptr, nullptr); |
| } |
| |
| void SetEncodedImageData( |
| rtc::scoped_refptr<EncodedImageBufferInterface> encoded_image_data) { |
| MutexLock lock(&local_mutex_); |
| encoded_image_data_ = encoded_image_data; |
| } |
| |
| void ExpectNullFrame() { |
| MutexLock lock(&local_mutex_); |
| expect_null_frame_ = true; |
| } |
| |
| absl::optional<VideoEncoder::RateControlParameters> |
| GetAndResetLastRateControlSettings() { |
| auto settings = last_rate_control_settings_; |
| last_rate_control_settings_.reset(); |
| return settings; |
| } |
| |
| int GetNumEncoderInitializations() const { |
| MutexLock lock(&local_mutex_); |
| return num_encoder_initializations_; |
| } |
| |
| int GetNumSetRates() const { |
| MutexLock lock(&local_mutex_); |
| return num_set_rates_; |
| } |
| |
| private: |
| int32_t Encode(const VideoFrame& input_image, |
| const std::vector<VideoFrameType>* frame_types) override { |
| bool block_encode; |
| { |
| MutexLock lock(&local_mutex_); |
| if (expect_null_frame_) { |
| EXPECT_EQ(input_image.timestamp(), 0u); |
| EXPECT_EQ(input_image.width(), 1); |
| last_frame_types_ = *frame_types; |
| expect_null_frame_ = false; |
| } else { |
| EXPECT_GT(input_image.timestamp(), timestamp_); |
| EXPECT_GT(input_image.ntp_time_ms(), ntp_time_ms_); |
| EXPECT_EQ(input_image.timestamp(), input_image.ntp_time_ms() * 90); |
| } |
| |
| timestamp_ = input_image.timestamp(); |
| ntp_time_ms_ = input_image.ntp_time_ms(); |
| last_input_width_ = input_image.width(); |
| last_input_height_ = input_image.height(); |
| block_encode = block_next_encode_; |
| block_next_encode_ = false; |
| last_update_rect_ = input_image.update_rect(); |
| last_frame_types_ = *frame_types; |
| } |
| int32_t result = FakeEncoder::Encode(input_image, frame_types); |
| if (block_encode) |
| EXPECT_TRUE(continue_encode_event_.Wait(kDefaultTimeoutMs)); |
| return result; |
| } |
| |
| std::unique_ptr<RTPFragmentationHeader> EncodeHook( |
| EncodedImage* encoded_image, |
| CodecSpecificInfo* codec_specific) override { |
| { |
| MutexLock lock(&mutex_); |
| codec_specific->codecType = config_.codecType; |
| } |
| MutexLock lock(&local_mutex_); |
| if (encoded_image_data_) { |
| encoded_image->SetEncodedData(encoded_image_data_); |
| if (codec_specific->codecType == kVideoCodecH264) { |
| auto fragmentation = std::make_unique<RTPFragmentationHeader>(); |
| fragmentation->VerifyAndAllocateFragmentationHeader(1); |
| fragmentation->fragmentationOffset[0] = 4; |
| fragmentation->fragmentationLength[0] = encoded_image->size() - 4; |
| return fragmentation; |
| } |
| } |
| return nullptr; |
| } |
| |
| int32_t InitEncode(const VideoCodec* config, |
| const Settings& settings) override { |
| int res = FakeEncoder::InitEncode(config, settings); |
| |
| MutexLock lock(&local_mutex_); |
| EXPECT_EQ(initialized_, EncoderState::kUninitialized); |
| |
| ++num_encoder_initializations_; |
| |
| if (config->codecType == kVideoCodecVP8) { |
| // Simulate setting up temporal layers, in order to validate the life |
| // cycle of these objects. |
| Vp8TemporalLayersFactory factory; |
| frame_buffer_controller_ = |
| factory.Create(*config, settings, &fec_controller_override_); |
| } |
| if (force_init_encode_failed_) { |
| initialized_ = EncoderState::kInitializationFailed; |
| return -1; |
| } |
| |
| initialized_ = EncoderState::kInitialized; |
| return res; |
| } |
| |
| int32_t Release() override { |
| MutexLock lock(&local_mutex_); |
| EXPECT_NE(initialized_, EncoderState::kUninitialized); |
| initialized_ = EncoderState::kUninitialized; |
| return FakeEncoder::Release(); |
| } |
| |
| void SetRates(const RateControlParameters& parameters) { |
| MutexLock lock(&local_mutex_); |
| num_set_rates_++; |
| VideoBitrateAllocation adjusted_rate_allocation; |
| for (size_t si = 0; si < kMaxSpatialLayers; ++si) { |
| for (size_t ti = 0; ti < kMaxTemporalStreams; ++ti) { |
| if (parameters.bitrate.HasBitrate(si, ti)) { |
| adjusted_rate_allocation.SetBitrate( |
| si, ti, |
| static_cast<uint32_t>(parameters.bitrate.GetBitrate(si, ti) * |
| rate_factor_)); |
| } |
| } |
| } |
| last_framerate_ = static_cast<uint32_t>(parameters.framerate_fps + 0.5); |
| last_rate_control_settings_ = parameters; |
| RateControlParameters adjusted_paramters = parameters; |
| adjusted_paramters.bitrate = adjusted_rate_allocation; |
| FakeEncoder::SetRates(adjusted_paramters); |
| } |
| |
| mutable Mutex local_mutex_; |
| enum class EncoderState { |
| kUninitialized, |
| kInitializationFailed, |
| kInitialized |
| } initialized_ RTC_GUARDED_BY(local_mutex_) = EncoderState::kUninitialized; |
| bool block_next_encode_ RTC_GUARDED_BY(local_mutex_) = false; |
| rtc::Event continue_encode_event_; |
| uint32_t timestamp_ RTC_GUARDED_BY(local_mutex_) = 0; |
| int64_t ntp_time_ms_ RTC_GUARDED_BY(local_mutex_) = 0; |
| int last_input_width_ RTC_GUARDED_BY(local_mutex_) = 0; |
| int last_input_height_ RTC_GUARDED_BY(local_mutex_) = 0; |
| bool quality_scaling_ RTC_GUARDED_BY(local_mutex_) = true; |
| int requested_resolution_alignment_ RTC_GUARDED_BY(local_mutex_) = 1; |
| bool is_hardware_accelerated_ RTC_GUARDED_BY(local_mutex_) = false; |
| rtc::scoped_refptr<EncodedImageBufferInterface> encoded_image_data_ |
| RTC_GUARDED_BY(local_mutex_); |
| std::unique_ptr<Vp8FrameBufferController> frame_buffer_controller_ |
| RTC_GUARDED_BY(local_mutex_); |
| absl::optional<bool> |
| temporal_layers_supported_[kMaxSpatialLayers] RTC_GUARDED_BY( |
| local_mutex_); |
| bool force_init_encode_failed_ RTC_GUARDED_BY(local_mutex_) = false; |
| double rate_factor_ RTC_GUARDED_BY(local_mutex_) = 1.0; |
| uint32_t last_framerate_ RTC_GUARDED_BY(local_mutex_) = 0; |
| absl::optional<VideoEncoder::RateControlParameters> |
| last_rate_control_settings_; |
| VideoFrame::UpdateRect last_update_rect_ RTC_GUARDED_BY(local_mutex_) = { |
| 0, 0, 0, 0}; |
| std::vector<VideoFrameType> last_frame_types_; |
| bool expect_null_frame_ = false; |
| EncodedImageCallback* encoded_image_callback_ RTC_GUARDED_BY(local_mutex_) = |
| nullptr; |
| NiceMock<MockFecControllerOverride> fec_controller_override_; |
| int num_encoder_initializations_ RTC_GUARDED_BY(local_mutex_) = 0; |
| std::vector<ResolutionBitrateLimits> resolution_bitrate_limits_ |
| RTC_GUARDED_BY(local_mutex_); |
| int num_set_rates_ RTC_GUARDED_BY(local_mutex_) = 0; |
| }; |
| |
| class TestSink : public VideoStreamEncoder::EncoderSink { |
| public: |
| explicit TestSink(TestEncoder* test_encoder) |
| : test_encoder_(test_encoder) {} |
| |
| void WaitForEncodedFrame(int64_t expected_ntp_time) { |
| EXPECT_TRUE( |
| TimedWaitForEncodedFrame(expected_ntp_time, kDefaultTimeoutMs)); |
| } |
| |
| bool TimedWaitForEncodedFrame(int64_t expected_ntp_time, |
| int64_t timeout_ms) { |
| uint32_t timestamp = 0; |
| if (!encoded_frame_event_.Wait(timeout_ms)) |
| return false; |
| { |
| MutexLock lock(&mutex_); |
| timestamp = last_timestamp_; |
| } |
| test_encoder_->CheckLastTimeStampsMatch(expected_ntp_time, timestamp); |
| return true; |
| } |
| |
| void WaitForEncodedFrame(uint32_t expected_width, |
| uint32_t expected_height) { |
| EXPECT_TRUE(encoded_frame_event_.Wait(kDefaultTimeoutMs)); |
| CheckLastFrameSizeMatches(expected_width, expected_height); |
| } |
| |
| void CheckLastFrameSizeMatches(uint32_t expected_width, |
| uint32_t expected_height) { |
| uint32_t width = 0; |
| uint32_t height = 0; |
| { |
| MutexLock lock(&mutex_); |
| width = last_width_; |
| height = last_height_; |
| } |
| EXPECT_EQ(expected_height, height); |
| EXPECT_EQ(expected_width, width); |
| } |
| |
| void CheckLastFrameSizeIsMultipleOf(int resolution_alignment) { |
| int width = 0; |
| int height = 0; |
| { |
| MutexLock lock(&mutex_); |
| width = last_width_; |
| height = last_height_; |
| } |
| EXPECT_EQ(width % resolution_alignment, 0); |
| EXPECT_EQ(height % resolution_alignment, 0); |
| } |
| |
| void CheckLastFrameRotationMatches(VideoRotation expected_rotation) { |
| VideoRotation rotation; |
| { |
| MutexLock lock(&mutex_); |
| rotation = last_rotation_; |
| } |
| EXPECT_EQ(expected_rotation, rotation); |
| } |
| |
| void ExpectDroppedFrame() { EXPECT_FALSE(encoded_frame_event_.Wait(100)); } |
| |
| bool WaitForFrame(int64_t timeout_ms) { |
| return encoded_frame_event_.Wait(timeout_ms); |
| } |
| |
| void SetExpectNoFrames() { |
| MutexLock lock(&mutex_); |
| expect_frames_ = false; |
| } |
| |
| int number_of_reconfigurations() const { |
| MutexLock lock(&mutex_); |
| return number_of_reconfigurations_; |
| } |
| |
| int last_min_transmit_bitrate() const { |
| MutexLock lock(&mutex_); |
| return min_transmit_bitrate_bps_; |
| } |
| |
| void SetNumExpectedLayers(size_t num_layers) { |
| MutexLock lock(&mutex_); |
| num_expected_layers_ = num_layers; |
| } |
| |
| int64_t GetLastCaptureTimeMs() const { |
| MutexLock lock(&mutex_); |
| return last_capture_time_ms_; |
| } |
| |
| std::vector<uint8_t> GetLastEncodedImageData() { |
| MutexLock lock(&mutex_); |
| return std::move(last_encoded_image_data_); |
| } |
| |
| RTPFragmentationHeader GetLastFragmentation() { |
| MutexLock lock(&mutex_); |
| return std::move(last_fragmentation_); |
| } |
| |
| private: |
| Result OnEncodedImage( |
| const EncodedImage& encoded_image, |
| const CodecSpecificInfo* codec_specific_info, |
| const RTPFragmentationHeader* fragmentation) override { |
| MutexLock lock(&mutex_); |
| EXPECT_TRUE(expect_frames_); |
| last_encoded_image_data_ = std::vector<uint8_t>( |
| encoded_image.data(), encoded_image.data() + encoded_image.size()); |
| if (fragmentation) { |
| last_fragmentation_.CopyFrom(*fragmentation); |
| } |
| uint32_t timestamp = encoded_image.Timestamp(); |
| if (last_timestamp_ != timestamp) { |
| num_received_layers_ = 1; |
| } else { |
| ++num_received_layers_; |
| } |
| last_timestamp_ = timestamp; |
| last_capture_time_ms_ = encoded_image.capture_time_ms_; |
| last_width_ = encoded_image._encodedWidth; |
| last_height_ = encoded_image._encodedHeight; |
| last_rotation_ = encoded_image.rotation_; |
| if (num_received_layers_ == num_expected_layers_) { |
| encoded_frame_event_.Set(); |
| } |
| return Result(Result::OK, last_timestamp_); |
| } |
| |
| void OnEncoderConfigurationChanged( |
| std::vector<VideoStream> streams, |
| bool is_svc, |
| VideoEncoderConfig::ContentType content_type, |
| int min_transmit_bitrate_bps) override { |
| MutexLock lock(&mutex_); |
| ++number_of_reconfigurations_; |
| min_transmit_bitrate_bps_ = min_transmit_bitrate_bps; |
| } |
| |
| mutable Mutex mutex_; |
| TestEncoder* test_encoder_; |
| rtc::Event encoded_frame_event_; |
| std::vector<uint8_t> last_encoded_image_data_; |
| RTPFragmentationHeader last_fragmentation_; |
| uint32_t last_timestamp_ = 0; |
| int64_t last_capture_time_ms_ = 0; |
| uint32_t last_height_ = 0; |
| uint32_t last_width_ = 0; |
| VideoRotation last_rotation_ = kVideoRotation_0; |
| size_t num_expected_layers_ = 1; |
| size_t num_received_layers_ = 0; |
| bool expect_frames_ = true; |
| int number_of_reconfigurations_ = 0; |
| int min_transmit_bitrate_bps_ = 0; |
| }; |
| |
| class VideoBitrateAllocatorProxyFactory |
| : public VideoBitrateAllocatorFactory { |
| public: |
| VideoBitrateAllocatorProxyFactory() |
| : bitrate_allocator_factory_( |
| CreateBuiltinVideoBitrateAllocatorFactory()) {} |
| |
| std::unique_ptr<VideoBitrateAllocator> CreateVideoBitrateAllocator( |
| const VideoCodec& codec) override { |
| MutexLock lock(&mutex_); |
| codec_config_ = codec; |
| return bitrate_allocator_factory_->CreateVideoBitrateAllocator(codec); |
| } |
| |
| VideoCodec codec_config() const { |
| MutexLock lock(&mutex_); |
| return codec_config_; |
| } |
| |
| private: |
| std::unique_ptr<VideoBitrateAllocatorFactory> bitrate_allocator_factory_; |
| |
| mutable Mutex mutex_; |
| VideoCodec codec_config_ RTC_GUARDED_BY(mutex_); |
| }; |
| |
| VideoSendStream::Config video_send_config_; |
| VideoEncoderConfig video_encoder_config_; |
| int codec_width_; |
| int codec_height_; |
| int max_framerate_; |
| rtc::ScopedFakeClock fake_clock_; |
| const std::unique_ptr<TaskQueueFactory> task_queue_factory_; |
| TestEncoder fake_encoder_; |
| test::VideoEncoderProxyFactory encoder_factory_; |
| VideoBitrateAllocatorProxyFactory bitrate_allocator_factory_; |
| std::unique_ptr<MockableSendStatisticsProxy> stats_proxy_; |
| TestSink sink_; |
| AdaptingFrameForwarder video_source_; |
| std::unique_ptr<VideoStreamEncoderUnderTest> video_stream_encoder_; |
| }; |
| |
| TEST_F(VideoStreamEncoderTest, EncodeOneFrame) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| rtc::Event frame_destroyed_event; |
| video_source_.IncomingCapturedFrame(CreateFrame(1, &frame_destroyed_event)); |
| WaitForEncodedFrame(1); |
| EXPECT_TRUE(frame_destroyed_event.Wait(kDefaultTimeoutMs)); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DropsFramesBeforeFirstOnBitrateUpdated) { |
| // Dropped since no target bitrate has been set. |
| rtc::Event frame_destroyed_event; |
| // The encoder will cache up to one frame for a short duration. Adding two |
| // frames means that the first frame will be dropped and the second frame will |
| // be sent when the encoder is enabled. |
| video_source_.IncomingCapturedFrame(CreateFrame(1, &frame_destroyed_event)); |
| video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr)); |
| EXPECT_TRUE(frame_destroyed_event.Wait(kDefaultTimeoutMs)); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // The pending frame should be received. |
| WaitForEncodedFrame(2); |
| video_source_.IncomingCapturedFrame(CreateFrame(3, nullptr)); |
| |
| WaitForEncodedFrame(3); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DropsFramesWhenRateSetToZero) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(0), DataRate::BitsPerSec(0), DataRate::BitsPerSec(0), |
| 0, 0, 0); |
| // The encoder will cache up to one frame for a short duration. Adding two |
| // frames means that the first frame will be dropped and the second frame will |
| // be sent when the encoder is resumed. |
| video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr)); |
| video_source_.IncomingCapturedFrame(CreateFrame(3, nullptr)); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| WaitForEncodedFrame(3); |
| video_source_.IncomingCapturedFrame(CreateFrame(4, nullptr)); |
| WaitForEncodedFrame(4); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DropsFramesWithSameOrOldNtpTimestamp) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| |
| // This frame will be dropped since it has the same ntp timestamp. |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr)); |
| WaitForEncodedFrame(2); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DropsFrameAfterStop) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| |
| video_stream_encoder_->Stop(); |
| sink_.SetExpectNoFrames(); |
| rtc::Event frame_destroyed_event; |
| video_source_.IncomingCapturedFrame(CreateFrame(2, &frame_destroyed_event)); |
| EXPECT_TRUE(frame_destroyed_event.Wait(kDefaultTimeoutMs)); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DropsPendingFramesOnSlowEncode) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| fake_encoder_.BlockNextEncode(); |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| // Here, the encoder thread will be blocked in the TestEncoder waiting for a |
| // call to ContinueEncode. |
| video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr)); |
| video_source_.IncomingCapturedFrame(CreateFrame(3, nullptr)); |
| fake_encoder_.ContinueEncode(); |
| WaitForEncodedFrame(3); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DropFrameWithFailedI420Conversion) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| rtc::Event frame_destroyed_event; |
| video_source_.IncomingCapturedFrame( |
| CreateFakeNativeFrame(1, &frame_destroyed_event)); |
| ExpectDroppedFrame(); |
| EXPECT_TRUE(frame_destroyed_event.Wait(kDefaultTimeoutMs)); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DropFrameWithFailedI420ConversionWithCrop) { |
| // Use the cropping factory. |
| video_encoder_config_.video_stream_factory = |
| new rtc::RefCountedObject<CroppingVideoStreamFactory>(1, 30); |
| video_stream_encoder_->ConfigureEncoder(std::move(video_encoder_config_), |
| kMaxPayloadLength); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| |
| // Capture a frame at codec_width_/codec_height_. |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| // The encoder will have been configured once. |
| EXPECT_EQ(1, sink_.number_of_reconfigurations()); |
| EXPECT_EQ(codec_width_, fake_encoder_.codec_config().width); |
| EXPECT_EQ(codec_height_, fake_encoder_.codec_config().height); |
| |
| // Now send in a fake frame that needs to be cropped as the width/height |
| // aren't divisible by 4 (see CreateEncoderStreams above). |
| rtc::Event frame_destroyed_event; |
| video_source_.IncomingCapturedFrame(CreateFakeNativeFrame( |
| 2, &frame_destroyed_event, codec_width_ + 1, codec_height_ + 1)); |
| ExpectDroppedFrame(); |
| EXPECT_TRUE(frame_destroyed_event.Wait(kDefaultTimeoutMs)); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DropsFramesWhenCongestionWindowPushbackSet) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0.5); |
| // The congestion window pushback is set to 0.5, which will drop 1/2 of |
| // frames. Adding two frames means that the first frame will be dropped and |
| // the second frame will be sent to the encoder. |
| video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr)); |
| video_source_.IncomingCapturedFrame(CreateFrame(3, nullptr)); |
| WaitForEncodedFrame(3); |
| video_source_.IncomingCapturedFrame(CreateFrame(4, nullptr)); |
| video_source_.IncomingCapturedFrame(CreateFrame(5, nullptr)); |
| WaitForEncodedFrame(5); |
| EXPECT_EQ(2u, stats_proxy_->GetStats().frames_dropped_by_congestion_window); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| ConfigureEncoderTriggersOnEncoderConfigurationChanged) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| EXPECT_EQ(0, sink_.number_of_reconfigurations()); |
| |
| // Capture a frame and wait for it to synchronize with the encoder thread. |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| // The encoder will have been configured once when the first frame is |
| // received. |
| EXPECT_EQ(1, sink_.number_of_reconfigurations()); |
| |
| VideoEncoderConfig video_encoder_config; |
| test::FillEncoderConfiguration(kVideoCodecVP8, 1, &video_encoder_config); |
| video_encoder_config.min_transmit_bitrate_bps = 9999; |
| video_stream_encoder_->ConfigureEncoder(std::move(video_encoder_config), |
| kMaxPayloadLength); |
| |
| // Capture a frame and wait for it to synchronize with the encoder thread. |
| video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr)); |
| WaitForEncodedFrame(2); |
| EXPECT_EQ(2, sink_.number_of_reconfigurations()); |
| EXPECT_EQ(9999, sink_.last_min_transmit_bitrate()); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, FrameResolutionChangeReconfigureEncoder) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Capture a frame and wait for it to synchronize with the encoder thread. |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| // The encoder will have been configured once. |
| EXPECT_EQ(1, sink_.number_of_reconfigurations()); |
| EXPECT_EQ(codec_width_, fake_encoder_.codec_config().width); |
| EXPECT_EQ(codec_height_, fake_encoder_.codec_config().height); |
| |
| codec_width_ *= 2; |
| codec_height_ *= 2; |
| // Capture a frame with a higher resolution and wait for it to synchronize |
| // with the encoder thread. |
| video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr)); |
| WaitForEncodedFrame(2); |
| EXPECT_EQ(codec_width_, fake_encoder_.codec_config().width); |
| EXPECT_EQ(codec_height_, fake_encoder_.codec_config().height); |
| EXPECT_EQ(2, sink_.number_of_reconfigurations()); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| EncoderInstanceDestroyedBeforeAnotherInstanceCreated) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Capture a frame and wait for it to synchronize with the encoder thread. |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| |
| VideoEncoderConfig video_encoder_config; |
| test::FillEncoderConfiguration(kVideoCodecVP8, 1, &video_encoder_config); |
| // Changing the max payload data length recreates encoder. |
| video_stream_encoder_->ConfigureEncoder(std::move(video_encoder_config), |
| kMaxPayloadLength / 2); |
| |
| // Capture a frame and wait for it to synchronize with the encoder thread. |
| video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr)); |
| WaitForEncodedFrame(2); |
| EXPECT_EQ(1, encoder_factory_.GetMaxNumberOfSimultaneousEncoderInstances()); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, BitrateLimitsChangeReconfigureRateAllocator) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| VideoEncoderConfig video_encoder_config; |
| test::FillEncoderConfiguration(kVideoCodecVP8, 1, &video_encoder_config); |
| video_encoder_config.max_bitrate_bps = kTargetBitrateBps; |
| video_stream_encoder_->SetStartBitrate(kStartBitrateBps); |
| video_stream_encoder_->ConfigureEncoder(video_encoder_config.Copy(), |
| kMaxPayloadLength); |
| |
| // Capture a frame and wait for it to synchronize with the encoder thread. |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| // The encoder will have been configured once when the first frame is |
| // received. |
| EXPECT_EQ(1, sink_.number_of_reconfigurations()); |
| EXPECT_EQ(kTargetBitrateBps, |
| bitrate_allocator_factory_.codec_config().maxBitrate * 1000); |
| EXPECT_EQ(kStartBitrateBps, |
| bitrate_allocator_factory_.codec_config().startBitrate * 1000); |
| |
| test::FillEncoderConfiguration(kVideoCodecVP8, 1, |
| &video_encoder_config); //??? |
| video_encoder_config.max_bitrate_bps = kTargetBitrateBps * 2; |
| video_stream_encoder_->SetStartBitrate(kStartBitrateBps * 2); |
| video_stream_encoder_->ConfigureEncoder(std::move(video_encoder_config), |
| kMaxPayloadLength); |
| |
| // Capture a frame and wait for it to synchronize with the encoder thread. |
| video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr)); |
| WaitForEncodedFrame(2); |
| EXPECT_EQ(2, sink_.number_of_reconfigurations()); |
| // Bitrate limits have changed - rate allocator should be reconfigured, |
| // encoder should not be reconfigured. |
| EXPECT_EQ(kTargetBitrateBps * 2, |
| bitrate_allocator_factory_.codec_config().maxBitrate * 1000); |
| EXPECT_EQ(kStartBitrateBps * 2, |
| bitrate_allocator_factory_.codec_config().startBitrate * 1000); |
| EXPECT_EQ(1, fake_encoder_.GetNumEncoderInitializations()); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| IntersectionOfEncoderAndAppBitrateLimitsUsedWhenBothProvided) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| const uint32_t kMinEncBitrateKbps = 100; |
| const uint32_t kMaxEncBitrateKbps = 1000; |
| const VideoEncoder::ResolutionBitrateLimits encoder_bitrate_limits( |
| /*frame_size_pixels=*/codec_width_ * codec_height_, |
| /*min_start_bitrate_bps=*/0, |
| /*min_bitrate_bps=*/kMinEncBitrateKbps * 1000, |
| /*max_bitrate_bps=*/kMaxEncBitrateKbps * 1000); |
| fake_encoder_.SetResolutionBitrateLimits({encoder_bitrate_limits}); |
| |
| VideoEncoderConfig video_encoder_config; |
| test::FillEncoderConfiguration(kVideoCodecVP8, 1, &video_encoder_config); |
| video_encoder_config.max_bitrate_bps = (kMaxEncBitrateKbps + 1) * 1000; |
| video_encoder_config.simulcast_layers[0].min_bitrate_bps = |
| (kMinEncBitrateKbps + 1) * 1000; |
| video_stream_encoder_->ConfigureEncoder(video_encoder_config.Copy(), |
| kMaxPayloadLength); |
| |
| // When both encoder and app provide bitrate limits, the intersection of |
| // provided sets should be used. |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| EXPECT_EQ(kMaxEncBitrateKbps, |
| bitrate_allocator_factory_.codec_config().maxBitrate); |
| EXPECT_EQ(kMinEncBitrateKbps + 1, |
| bitrate_allocator_factory_.codec_config().minBitrate); |
| |
| video_encoder_config.max_bitrate_bps = (kMaxEncBitrateKbps - 1) * 1000; |
| video_encoder_config.simulcast_layers[0].min_bitrate_bps = |
| (kMinEncBitrateKbps - 1) * 1000; |
| video_stream_encoder_->ConfigureEncoder(video_encoder_config.Copy(), |
| kMaxPayloadLength); |
| video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr)); |
| WaitForEncodedFrame(2); |
| EXPECT_EQ(kMaxEncBitrateKbps - 1, |
| bitrate_allocator_factory_.codec_config().maxBitrate); |
| EXPECT_EQ(kMinEncBitrateKbps, |
| bitrate_allocator_factory_.codec_config().minBitrate); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| EncoderAndAppLimitsDontIntersectEncoderLimitsIgnored) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| const uint32_t kMinAppBitrateKbps = 100; |
| const uint32_t kMaxAppBitrateKbps = 200; |
| const uint32_t kMinEncBitrateKbps = kMaxAppBitrateKbps + 1; |
| const uint32_t kMaxEncBitrateKbps = kMaxAppBitrateKbps * 2; |
| const VideoEncoder::ResolutionBitrateLimits encoder_bitrate_limits( |
| /*frame_size_pixels=*/codec_width_ * codec_height_, |
| /*min_start_bitrate_bps=*/0, |
| /*min_bitrate_bps=*/kMinEncBitrateKbps * 1000, |
| /*max_bitrate_bps=*/kMaxEncBitrateKbps * 1000); |
| fake_encoder_.SetResolutionBitrateLimits({encoder_bitrate_limits}); |
| |
| VideoEncoderConfig video_encoder_config; |
| test::FillEncoderConfiguration(kVideoCodecVP8, 1, &video_encoder_config); |
| video_encoder_config.max_bitrate_bps = kMaxAppBitrateKbps * 1000; |
| video_encoder_config.simulcast_layers[0].min_bitrate_bps = |
| kMinAppBitrateKbps * 1000; |
| video_stream_encoder_->ConfigureEncoder(video_encoder_config.Copy(), |
| kMaxPayloadLength); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| EXPECT_EQ(kMaxAppBitrateKbps, |
| bitrate_allocator_factory_.codec_config().maxBitrate); |
| EXPECT_EQ(kMinAppBitrateKbps, |
| bitrate_allocator_factory_.codec_config().minBitrate); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| EncoderRecommendedMaxAndMinBitratesUsedForGivenResolution) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| const VideoEncoder::ResolutionBitrateLimits encoder_bitrate_limits_270p( |
| 480 * 270, 34 * 1000, 12 * 1000, 1234 * 1000); |
| const VideoEncoder::ResolutionBitrateLimits encoder_bitrate_limits_360p( |
| 640 * 360, 43 * 1000, 21 * 1000, 2345 * 1000); |
| fake_encoder_.SetResolutionBitrateLimits( |
| {encoder_bitrate_limits_270p, encoder_bitrate_limits_360p}); |
| |
| VideoEncoderConfig video_encoder_config; |
| test::FillEncoderConfiguration(kVideoCodecVP8, 1, &video_encoder_config); |
| video_encoder_config.max_bitrate_bps = 0; |
| video_stream_encoder_->ConfigureEncoder(video_encoder_config.Copy(), |
| kMaxPayloadLength); |
| |
| // 270p. The bitrate limits recommended by encoder for 270p should be used. |
| video_source_.IncomingCapturedFrame(CreateFrame(1, 480, 270)); |
| WaitForEncodedFrame(1); |
| EXPECT_EQ(static_cast<uint32_t>(encoder_bitrate_limits_270p.min_bitrate_bps), |
| bitrate_allocator_factory_.codec_config().minBitrate * 1000); |
| EXPECT_EQ(static_cast<uint32_t>(encoder_bitrate_limits_270p.max_bitrate_bps), |
| bitrate_allocator_factory_.codec_config().maxBitrate * 1000); |
| |
| // 360p. The bitrate limits recommended by encoder for 360p should be used. |
| video_source_.IncomingCapturedFrame(CreateFrame(2, 640, 360)); |
| WaitForEncodedFrame(2); |
| EXPECT_EQ(static_cast<uint32_t>(encoder_bitrate_limits_360p.min_bitrate_bps), |
| bitrate_allocator_factory_.codec_config().minBitrate * 1000); |
| EXPECT_EQ(static_cast<uint32_t>(encoder_bitrate_limits_360p.max_bitrate_bps), |
| bitrate_allocator_factory_.codec_config().maxBitrate * 1000); |
| |
| // Resolution between 270p and 360p. The bitrate limits recommended by |
| // encoder for 360p should be used. |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(3, (640 + 480) / 2, (360 + 270) / 2)); |
| WaitForEncodedFrame(3); |
| EXPECT_EQ(static_cast<uint32_t>(encoder_bitrate_limits_360p.min_bitrate_bps), |
| bitrate_allocator_factory_.codec_config().minBitrate * 1000); |
| EXPECT_EQ(static_cast<uint32_t>(encoder_bitrate_limits_360p.max_bitrate_bps), |
| bitrate_allocator_factory_.codec_config().maxBitrate * 1000); |
| |
| // Resolution higher than 360p. The caps recommended by encoder should be |
| // ignored. |
| video_source_.IncomingCapturedFrame(CreateFrame(4, 960, 540)); |
| WaitForEncodedFrame(4); |
| EXPECT_NE(static_cast<uint32_t>(encoder_bitrate_limits_270p.min_bitrate_bps), |
| bitrate_allocator_factory_.codec_config().minBitrate * 1000); |
| EXPECT_NE(static_cast<uint32_t>(encoder_bitrate_limits_270p.max_bitrate_bps), |
| bitrate_allocator_factory_.codec_config().maxBitrate * 1000); |
| EXPECT_NE(static_cast<uint32_t>(encoder_bitrate_limits_360p.min_bitrate_bps), |
| bitrate_allocator_factory_.codec_config().minBitrate * 1000); |
| EXPECT_NE(static_cast<uint32_t>(encoder_bitrate_limits_360p.max_bitrate_bps), |
| bitrate_allocator_factory_.codec_config().maxBitrate * 1000); |
| |
| // Resolution lower than 270p. The max bitrate limit recommended by encoder |
| // for 270p should be used. |
| video_source_.IncomingCapturedFrame(CreateFrame(5, 320, 180)); |
| WaitForEncodedFrame(5); |
| EXPECT_EQ(static_cast<uint32_t>(encoder_bitrate_limits_270p.min_bitrate_bps), |
| bitrate_allocator_factory_.codec_config().minBitrate * 1000); |
| EXPECT_EQ(static_cast<uint32_t>(encoder_bitrate_limits_270p.max_bitrate_bps), |
| bitrate_allocator_factory_.codec_config().maxBitrate * 1000); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, EncoderRecommendedMaxBitrateCapsTargetBitrate) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| VideoEncoderConfig video_encoder_config; |
| test::FillEncoderConfiguration(kVideoCodecVP8, 1, &video_encoder_config); |
| video_encoder_config.max_bitrate_bps = 0; |
| video_stream_encoder_->ConfigureEncoder(video_encoder_config.Copy(), |
| kMaxPayloadLength); |
| |
| // Encode 720p frame to get the default encoder target bitrate. |
| video_source_.IncomingCapturedFrame(CreateFrame(1, 1280, 720)); |
| WaitForEncodedFrame(1); |
| const uint32_t kDefaultTargetBitrateFor720pKbps = |
| bitrate_allocator_factory_.codec_config() |
| .simulcastStream[0] |
| .targetBitrate; |
| |
| // Set the max recommended encoder bitrate to something lower than the default |
| // target bitrate. |
| const VideoEncoder::ResolutionBitrateLimits encoder_bitrate_limits( |
| 1280 * 720, 10 * 1000, 10 * 1000, |
| kDefaultTargetBitrateFor720pKbps / 2 * 1000); |
| fake_encoder_.SetResolutionBitrateLimits({encoder_bitrate_limits}); |
| |
| // Change resolution to trigger encoder reinitialization. |
| video_source_.IncomingCapturedFrame(CreateFrame(2, 640, 360)); |
| WaitForEncodedFrame(2); |
| video_source_.IncomingCapturedFrame(CreateFrame(3, 1280, 720)); |
| WaitForEncodedFrame(3); |
| |
| // Ensure the target bitrate is capped by the max bitrate. |
| EXPECT_EQ(bitrate_allocator_factory_.codec_config().maxBitrate * 1000, |
| static_cast<uint32_t>(encoder_bitrate_limits.max_bitrate_bps)); |
| EXPECT_EQ(bitrate_allocator_factory_.codec_config() |
| .simulcastStream[0] |
| .targetBitrate * |
| 1000, |
| static_cast<uint32_t>(encoder_bitrate_limits.max_bitrate_bps)); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, SwitchSourceDeregisterEncoderAsSink) { |
| EXPECT_TRUE(video_source_.has_sinks()); |
| test::FrameForwarder new_video_source; |
| video_stream_encoder_->SetSource( |
| &new_video_source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| EXPECT_FALSE(video_source_.has_sinks()); |
| EXPECT_TRUE(new_video_source.has_sinks()); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, SinkWantsRotationApplied) { |
| EXPECT_FALSE(video_source_.sink_wants().rotation_applied); |
| video_stream_encoder_->SetSink(&sink_, true /*rotation_applied*/); |
| EXPECT_TRUE(video_source_.sink_wants().rotation_applied); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, SinkWantsResolutionAlignment) { |
| constexpr int kRequestedResolutionAlignment = 7; |
| video_source_.set_adaptation_enabled(true); |
| fake_encoder_.SetRequestedResolutionAlignment(kRequestedResolutionAlignment); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // On the 1st frame, we should have initialized the encoder and |
| // asked for its resolution requirements. |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(1, codec_width_, codec_height_)); |
| WaitForEncodedFrame(1); |
| EXPECT_EQ(video_source_.sink_wants().resolution_alignment, |
| kRequestedResolutionAlignment); |
| |
| // On the 2nd frame, we should be receiving a correctly aligned resolution. |
| // (It's up the to the encoder to potentially drop the previous frame, |
| // to avoid coding back-to-back keyframes.) |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(2, codec_width_, codec_height_)); |
| WaitForEncodedFrame(2); |
| sink_.CheckLastFrameSizeIsMultipleOf(kRequestedResolutionAlignment); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, TestCpuDowngrades_BalancedMode) { |
| const int kFramerateFps = 30; |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| |
| // We rely on the automatic resolution adaptation, but we handle framerate |
| // adaptation manually by mocking the stats proxy. |
| video_source_.set_adaptation_enabled(true); |
| |
| // Enable BALANCED preference, no initial limitation. |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_stream_encoder_->SetSource(&video_source_, |
| webrtc::DegradationPreference::BALANCED); |
| EXPECT_THAT(video_source_.sink_wants(), UnlimitedSinkWants()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| // Adapt down as far as possible. |
| rtc::VideoSinkWants last_wants; |
| int64_t t = 1; |
| int loop_count = 0; |
| do { |
| ++loop_count; |
| last_wants = video_source_.sink_wants(); |
| |
| // Simulate the framerate we've been asked to adapt to. |
| const int fps = std::min(kFramerateFps, last_wants.max_framerate_fps); |
| const int frame_interval_ms = rtc::kNumMillisecsPerSec / fps; |
| VideoSendStream::Stats mock_stats = stats_proxy_->GetStats(); |
| mock_stats.input_frame_rate = fps; |
| stats_proxy_->SetMockStats(mock_stats); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(t, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(t); |
| t += frame_interval_ms; |
| |
| video_stream_encoder_->TriggerCpuOveruse(); |
| EXPECT_THAT( |
| video_source_.sink_wants(), |
| FpsInRangeForPixelsInBalanced(*video_source_.last_sent_width() * |
| *video_source_.last_sent_height())); |
| } while (video_source_.sink_wants().max_pixel_count < |
| last_wants.max_pixel_count || |
| video_source_.sink_wants().max_framerate_fps < |
| last_wants.max_framerate_fps); |
| |
| // Verify that we've adapted all the way down. |
| stats_proxy_->ResetMockStats(); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(loop_count - 1, |
| stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(kMinPixelsPerFrame, *video_source_.last_sent_width() * |
| *video_source_.last_sent_height()); |
| EXPECT_EQ(kMinBalancedFramerateFps, |
| video_source_.sink_wants().max_framerate_fps); |
| |
| // Adapt back up the same number of times we adapted down. |
| for (int i = 0; i < loop_count - 1; ++i) { |
| last_wants = video_source_.sink_wants(); |
| |
| // Simulate the framerate we've been asked to adapt to. |
| const int fps = std::min(kFramerateFps, last_wants.max_framerate_fps); |
| const int frame_interval_ms = rtc::kNumMillisecsPerSec / fps; |
| VideoSendStream::Stats mock_stats = stats_proxy_->GetStats(); |
| mock_stats.input_frame_rate = fps; |
| stats_proxy_->SetMockStats(mock_stats); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(t, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(t); |
| t += frame_interval_ms; |
| |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| EXPECT_THAT( |
| video_source_.sink_wants(), |
| FpsInRangeForPixelsInBalanced(*video_source_.last_sent_width() * |
| *video_source_.last_sent_height())); |
| EXPECT_TRUE(video_source_.sink_wants().max_pixel_count > |
| last_wants.max_pixel_count || |
| video_source_.sink_wants().max_framerate_fps > |
| last_wants.max_framerate_fps); |
| } |
| |
| EXPECT_THAT(video_source_.sink_wants(), FpsMaxResolutionMax()); |
| stats_proxy_->ResetMockStats(); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ((loop_count - 1) * 2, |
| stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| SinkWantsNotChangedByResourceLimitedBeforeDegradationPreferenceChange) { |
| video_stream_encoder_->OnBitrateUpdated( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| EXPECT_THAT(video_source_.sink_wants(), UnlimitedSinkWants()); |
| |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| |
| int64_t ntp_time = kFrameIntervalMs; |
| |
| // Force an input frame rate to be available, or the adaptation call won't |
| // know what framerate to adapt form. |
| const int kInputFps = 30; |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| stats.input_frame_rate = kInputFps; |
| stats_proxy_->SetMockStats(stats); |
| |
| video_source_.set_adaptation_enabled(true); |
| video_stream_encoder_->SetSource( |
| &video_source_, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| EXPECT_THAT(video_source_.sink_wants(), UnlimitedSinkWants()); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(ntp_time, kFrameWidth, kFrameHeight)); |
| sink_.WaitForEncodedFrame(ntp_time); |
| ntp_time += kFrameIntervalMs; |
| |
| // Trigger CPU overuse. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(ntp_time, kFrameWidth, kFrameHeight)); |
| sink_.WaitForEncodedFrame(ntp_time); |
| ntp_time += kFrameIntervalMs; |
| |
| EXPECT_FALSE(video_source_.sink_wants().target_pixel_count); |
| EXPECT_EQ(std::numeric_limits<int>::max(), |
| video_source_.sink_wants().max_pixel_count); |
| // Some framerate constraint should be set. |
| int restricted_fps = video_source_.sink_wants().max_framerate_fps; |
| EXPECT_LT(restricted_fps, kInputFps); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(ntp_time, kFrameWidth, kFrameHeight)); |
| sink_.WaitForEncodedFrame(ntp_time); |
| ntp_time += 100; |
| |
| video_stream_encoder_->SetSourceAndWaitForRestrictionsUpdated( |
| &video_source_, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| // Give the encoder queue time to process the change in degradation preference |
| // by waiting for an encoded frame. |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(ntp_time, kFrameWidth, kFrameHeight)); |
| sink_.WaitForEncodedFrame(ntp_time); |
| ntp_time += kFrameIntervalMs; |
| |
| video_stream_encoder_->TriggerQualityLow(); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(ntp_time, kFrameWidth, kFrameHeight)); |
| sink_.WaitForEncodedFrame(ntp_time); |
| ntp_time += kFrameIntervalMs; |
| |
| // Some resolution constraint should be set. |
| EXPECT_FALSE(video_source_.sink_wants().target_pixel_count); |
| EXPECT_LT(video_source_.sink_wants().max_pixel_count, |
| kFrameWidth * kFrameHeight); |
| EXPECT_EQ(video_source_.sink_wants().max_framerate_fps, kInputFps); |
| |
| int pixel_count = video_source_.sink_wants().max_pixel_count; |
| // Triggering a CPU underuse should not change the sink wants since it has |
| // not been overused for resolution since we changed degradation preference. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(ntp_time, kFrameWidth, kFrameHeight)); |
| sink_.WaitForEncodedFrame(ntp_time); |
| ntp_time += kFrameIntervalMs; |
| EXPECT_EQ(video_source_.sink_wants().max_pixel_count, pixel_count); |
| EXPECT_EQ(video_source_.sink_wants().max_framerate_fps, kInputFps); |
| |
| // Change the degradation preference back. CPU underuse should not adapt since |
| // QP is most limited. |
| video_stream_encoder_->SetSourceAndWaitForRestrictionsUpdated( |
| &video_source_, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(ntp_time, kFrameWidth, kFrameHeight)); |
| sink_.WaitForEncodedFrame(ntp_time); |
| ntp_time += 100; |
| // Resolution adaptations is gone after changing degradation preference. |
| EXPECT_FALSE(video_source_.sink_wants().target_pixel_count); |
| EXPECT_EQ(std::numeric_limits<int>::max(), |
| video_source_.sink_wants().max_pixel_count); |
| // The fps adaptation from above is now back. |
| EXPECT_EQ(video_source_.sink_wants().max_framerate_fps, restricted_fps); |
| |
| // Trigger CPU underuse. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(ntp_time, kFrameWidth, kFrameHeight)); |
| sink_.WaitForEncodedFrame(ntp_time); |
| ntp_time += kFrameIntervalMs; |
| EXPECT_EQ(video_source_.sink_wants().max_framerate_fps, restricted_fps); |
| |
| // Trigger QP underuse, fps should return to normal. |
| video_stream_encoder_->TriggerQualityHigh(); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(ntp_time, kFrameWidth, kFrameHeight)); |
| sink_.WaitForEncodedFrame(ntp_time); |
| ntp_time += kFrameIntervalMs; |
| EXPECT_THAT(video_source_.sink_wants(), FpsMax()); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, SinkWantsStoredByDegradationPreference) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| EXPECT_THAT(video_source_.sink_wants(), UnlimitedSinkWants()); |
| |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| |
| int64_t frame_timestamp = 1; |
| |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(frame_timestamp, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(frame_timestamp); |
| frame_timestamp += kFrameIntervalMs; |
| |
| // Trigger CPU overuse. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(frame_timestamp, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(frame_timestamp); |
| frame_timestamp += kFrameIntervalMs; |
| |
| // Default degradation preference is maintain-framerate, so will lower max |
| // wanted resolution. |
| EXPECT_FALSE(video_source_.sink_wants().target_pixel_count); |
| EXPECT_LT(video_source_.sink_wants().max_pixel_count, |
| kFrameWidth * kFrameHeight); |
| EXPECT_EQ(kDefaultFramerate, video_source_.sink_wants().max_framerate_fps); |
| |
| // Set new source, switch to maintain-resolution. |
| test::FrameForwarder new_video_source; |
| video_stream_encoder_->SetSourceAndWaitForRestrictionsUpdated( |
| &new_video_source, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| // Give the encoder queue time to process the change in degradation preference |
| // by waiting for an encoded frame. |
| new_video_source.IncomingCapturedFrame( |
| CreateFrame(frame_timestamp, kFrameWidth, kFrameWidth)); |
| sink_.WaitForEncodedFrame(frame_timestamp); |
| frame_timestamp += kFrameIntervalMs; |
| // Initially no degradation registered. |
| EXPECT_THAT(new_video_source.sink_wants(), FpsMaxResolutionMax()); |
| |
| // Force an input frame rate to be available, or the adaptation call won't |
| // know what framerate to adapt form. |
| const int kInputFps = 30; |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| stats.input_frame_rate = kInputFps; |
| stats_proxy_->SetMockStats(stats); |
| |
| video_stream_encoder_->TriggerCpuOveruse(); |
| new_video_source.IncomingCapturedFrame( |
| CreateFrame(frame_timestamp, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(frame_timestamp); |
| frame_timestamp += kFrameIntervalMs; |
| |
| // Some framerate constraint should be set. |
| EXPECT_FALSE(new_video_source.sink_wants().target_pixel_count); |
| EXPECT_EQ(std::numeric_limits<int>::max(), |
| new_video_source.sink_wants().max_pixel_count); |
| EXPECT_LT(new_video_source.sink_wants().max_framerate_fps, kInputFps); |
| |
| // Turn off degradation completely. |
| video_stream_encoder_->SetSourceAndWaitForRestrictionsUpdated( |
| &new_video_source, webrtc::DegradationPreference::DISABLED); |
| // Give the encoder queue time to process the change in degradation preference |
| // by waiting for an encoded frame. |
| new_video_source.IncomingCapturedFrame( |
| CreateFrame(frame_timestamp, kFrameWidth, kFrameWidth)); |
| sink_.WaitForEncodedFrame(frame_timestamp); |
| frame_timestamp += kFrameIntervalMs; |
| EXPECT_THAT(new_video_source.sink_wants(), FpsMaxResolutionMax()); |
| |
| video_stream_encoder_->TriggerCpuOveruse(); |
| new_video_source.IncomingCapturedFrame( |
| CreateFrame(frame_timestamp, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(frame_timestamp); |
| frame_timestamp += kFrameIntervalMs; |
| |
| // Still no degradation. |
| EXPECT_THAT(new_video_source.sink_wants(), FpsMaxResolutionMax()); |
| |
| // Calling SetSource with resolution scaling enabled apply the old SinkWants. |
| video_stream_encoder_->SetSourceAndWaitForRestrictionsUpdated( |
| &new_video_source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| // Give the encoder queue time to process the change in degradation preference |
| // by waiting for an encoded frame. |
| new_video_source.IncomingCapturedFrame( |
| CreateFrame(frame_timestamp, kFrameWidth, kFrameWidth)); |
| sink_.WaitForEncodedFrame(frame_timestamp); |
| frame_timestamp += kFrameIntervalMs; |
| EXPECT_LT(new_video_source.sink_wants().max_pixel_count, |
| kFrameWidth * kFrameHeight); |
| EXPECT_FALSE(new_video_source.sink_wants().target_pixel_count); |
| EXPECT_EQ(kDefaultFramerate, new_video_source.sink_wants().max_framerate_fps); |
| |
| // Calling SetSource with framerate scaling enabled apply the old SinkWants. |
| video_stream_encoder_->SetSourceAndWaitForRestrictionsUpdated( |
| &new_video_source, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| // Give the encoder queue time to process the change in degradation preference |
| // by waiting for an encoded frame. |
| new_video_source.IncomingCapturedFrame( |
| CreateFrame(frame_timestamp, kFrameWidth, kFrameWidth)); |
| sink_.WaitForEncodedFrame(frame_timestamp); |
| frame_timestamp += kFrameIntervalMs; |
| EXPECT_FALSE(new_video_source.sink_wants().target_pixel_count); |
| EXPECT_EQ(std::numeric_limits<int>::max(), |
| new_video_source.sink_wants().max_pixel_count); |
| EXPECT_LT(new_video_source.sink_wants().max_framerate_fps, kInputFps); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, StatsTracksQualityAdaptationStats) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| WaitForEncodedFrame(1); |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.bw_limited_resolution); |
| EXPECT_EQ(0, stats.number_of_quality_adapt_changes); |
| |
| // Trigger adapt down. |
| video_stream_encoder_->TriggerQualityLow(); |
| video_source_.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight)); |
| WaitForEncodedFrame(2); |
| |
| stats = stats_proxy_->GetStats(); |
| EXPECT_TRUE(stats.bw_limited_resolution); |
| EXPECT_EQ(1, stats.number_of_quality_adapt_changes); |
| |
| // Trigger adapt up. |
| video_stream_encoder_->TriggerQualityHigh(); |
| video_source_.IncomingCapturedFrame(CreateFrame(3, kWidth, kHeight)); |
| WaitForEncodedFrame(3); |
| |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.bw_limited_resolution); |
| EXPECT_EQ(2, stats.number_of_quality_adapt_changes); |
| EXPECT_EQ(0, stats.number_of_cpu_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, StatsTracksCpuAdaptationStats) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| WaitForEncodedFrame(1); |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_EQ(0, stats.number_of_cpu_adapt_changes); |
| |
| // Trigger CPU overuse. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| video_source_.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight)); |
| WaitForEncodedFrame(2); |
| |
| stats = stats_proxy_->GetStats(); |
| EXPECT_TRUE(stats.cpu_limited_resolution); |
| EXPECT_EQ(1, stats.number_of_cpu_adapt_changes); |
| |
| // Trigger CPU normal use. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| video_source_.IncomingCapturedFrame(CreateFrame(3, kWidth, kHeight)); |
| WaitForEncodedFrame(3); |
| |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_EQ(2, stats.number_of_cpu_adapt_changes); |
| EXPECT_EQ(0, stats.number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, SwitchingSourceKeepsCpuAdaptation) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| WaitForEncodedFrame(1); |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.bw_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_EQ(0, stats.number_of_cpu_adapt_changes); |
| |
| // Trigger CPU overuse. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| video_source_.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight)); |
| WaitForEncodedFrame(2); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.bw_limited_resolution); |
| EXPECT_TRUE(stats.cpu_limited_resolution); |
| EXPECT_EQ(1, stats.number_of_cpu_adapt_changes); |
| |
| // Set new source with adaptation still enabled. |
| test::FrameForwarder new_video_source; |
| video_stream_encoder_->SetSource( |
| &new_video_source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| |
| new_video_source.IncomingCapturedFrame(CreateFrame(3, kWidth, kHeight)); |
| WaitForEncodedFrame(3); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.bw_limited_resolution); |
| EXPECT_TRUE(stats.cpu_limited_resolution); |
| EXPECT_EQ(1, stats.number_of_cpu_adapt_changes); |
| |
| // Set adaptation disabled. |
| video_stream_encoder_->SetSource(&new_video_source, |
| webrtc::DegradationPreference::DISABLED); |
| |
| new_video_source.IncomingCapturedFrame(CreateFrame(4, kWidth, kHeight)); |
| WaitForEncodedFrame(4); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.bw_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_EQ(1, stats.number_of_cpu_adapt_changes); |
| |
| // Set adaptation back to enabled. |
| video_stream_encoder_->SetSource( |
| &new_video_source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| |
| new_video_source.IncomingCapturedFrame(CreateFrame(5, kWidth, kHeight)); |
| WaitForEncodedFrame(5); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.bw_limited_resolution); |
| EXPECT_TRUE(stats.cpu_limited_resolution); |
| EXPECT_EQ(1, stats.number_of_cpu_adapt_changes); |
| |
| // Trigger CPU normal use. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| new_video_source.IncomingCapturedFrame(CreateFrame(6, kWidth, kHeight)); |
| WaitForEncodedFrame(6); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.bw_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_EQ(2, stats.number_of_cpu_adapt_changes); |
| EXPECT_EQ(0, stats.number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, SwitchingSourceKeepsQualityAdaptation) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| WaitForEncodedFrame(1); |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.bw_limited_resolution); |
| EXPECT_FALSE(stats.bw_limited_framerate); |
| EXPECT_EQ(0, stats.number_of_quality_adapt_changes); |
| |
| // Set new source with adaptation still enabled. |
| test::FrameForwarder new_video_source; |
| video_stream_encoder_->SetSource(&new_video_source, |
| webrtc::DegradationPreference::BALANCED); |
| |
| new_video_source.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight)); |
| WaitForEncodedFrame(2); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.bw_limited_resolution); |
| EXPECT_FALSE(stats.bw_limited_framerate); |
| EXPECT_EQ(0, stats.number_of_quality_adapt_changes); |
| |
| // Trigger adapt down. |
| video_stream_encoder_->TriggerQualityLow(); |
| new_video_source.IncomingCapturedFrame(CreateFrame(3, kWidth, kHeight)); |
| WaitForEncodedFrame(3); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_TRUE(stats.bw_limited_resolution); |
| EXPECT_FALSE(stats.bw_limited_framerate); |
| EXPECT_EQ(1, stats.number_of_quality_adapt_changes); |
| |
| // Set new source with adaptation still enabled. |
| video_stream_encoder_->SetSource(&new_video_source, |
| webrtc::DegradationPreference::BALANCED); |
| |
| new_video_source.IncomingCapturedFrame(CreateFrame(4, kWidth, kHeight)); |
| WaitForEncodedFrame(4); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_TRUE(stats.bw_limited_resolution); |
| EXPECT_FALSE(stats.bw_limited_framerate); |
| EXPECT_EQ(1, stats.number_of_quality_adapt_changes); |
| |
| // Disable resolution scaling. |
| video_stream_encoder_->SetSource( |
| &new_video_source, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| |
| new_video_source.IncomingCapturedFrame(CreateFrame(5, kWidth, kHeight)); |
| WaitForEncodedFrame(5); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.bw_limited_resolution); |
| EXPECT_FALSE(stats.bw_limited_framerate); |
| EXPECT_EQ(1, stats.number_of_quality_adapt_changes); |
| EXPECT_EQ(0, stats.number_of_cpu_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| QualityAdaptationStatsAreResetWhenScalerIsDisabled) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| int64_t timestamp_ms = kFrameIntervalMs; |
| video_source_.set_adaptation_enabled(true); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| // Trigger adapt down. |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| // Trigger overuse. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| timestamp_ms += kFrameIntervalMs; |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| // Leave source unchanged, but disable quality scaler. |
| fake_encoder_.SetQualityScaling(false); |
| |
| VideoEncoderConfig video_encoder_config; |
| test::FillEncoderConfiguration(kVideoCodecVP8, 1, &video_encoder_config); |
| // Make format different, to force recreation of encoder. |
| video_encoder_config.video_format.parameters["foo"] = "foo"; |
| video_stream_encoder_->ConfigureEncoder(std::move(video_encoder_config), |
| kMaxPayloadLength); |
| timestamp_ms += kFrameIntervalMs; |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| StatsTracksCpuAdaptationStatsWhenSwitchingSource_Balanced) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| int sequence = 1; |
| |
| // Enable BALANCED preference, no initial limitation. |
| test::FrameForwarder source; |
| video_stream_encoder_->SetSource(&source, |
| webrtc::DegradationPreference::BALANCED); |
| source.IncomingCapturedFrame(CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_framerate); |
| EXPECT_EQ(0, stats.number_of_cpu_adapt_changes); |
| |
| // Trigger CPU overuse, should now adapt down. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| source.IncomingCapturedFrame(CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_EQ(1, stats.number_of_cpu_adapt_changes); |
| |
| // Set new degradation preference should clear restrictions since we changed |
| // from BALANCED. |
| video_stream_encoder_->SetSourceAndWaitForRestrictionsUpdated( |
| &source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| source.IncomingCapturedFrame(CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_framerate); |
| EXPECT_EQ(1, stats.number_of_cpu_adapt_changes); |
| |
| // Force an input frame rate to be available, or the adaptation call won't |
| // know what framerate to adapt from. |
| VideoSendStream::Stats mock_stats = stats_proxy_->GetStats(); |
| mock_stats.input_frame_rate = 30; |
| stats_proxy_->SetMockStats(mock_stats); |
| video_stream_encoder_->TriggerCpuOveruse(); |
| stats_proxy_->ResetMockStats(); |
| source.IncomingCapturedFrame(CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| |
| // We have now adapted once. |
| stats = stats_proxy_->GetStats(); |
| EXPECT_EQ(2, stats.number_of_cpu_adapt_changes); |
| |
| // Back to BALANCED, should clear the restrictions again. |
| video_stream_encoder_->SetSourceAndWaitForRestrictionsUpdated( |
| &source, webrtc::DegradationPreference::BALANCED); |
| source.IncomingCapturedFrame(CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_framerate); |
| EXPECT_EQ(2, stats.number_of_cpu_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| StatsTracksCpuAdaptationStatsWhenSwitchingSource) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| int sequence = 1; |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_framerate); |
| EXPECT_EQ(0, stats.number_of_cpu_adapt_changes); |
| |
| // Trigger CPU overuse, should now adapt down. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| video_source_.IncomingCapturedFrame(CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_TRUE(stats.cpu_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_framerate); |
| EXPECT_EQ(1, stats.number_of_cpu_adapt_changes); |
| |
| // Set new source with adaptation still enabled. |
| test::FrameForwarder new_video_source; |
| video_stream_encoder_->SetSource( |
| &new_video_source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| |
| new_video_source.IncomingCapturedFrame( |
| CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_TRUE(stats.cpu_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_framerate); |
| EXPECT_EQ(1, stats.number_of_cpu_adapt_changes); |
| |
| // Set cpu adaptation by frame dropping. |
| video_stream_encoder_->SetSource( |
| &new_video_source, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| new_video_source.IncomingCapturedFrame( |
| CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| stats = stats_proxy_->GetStats(); |
| // Not adapted at first. |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_framerate); |
| EXPECT_EQ(1, stats.number_of_cpu_adapt_changes); |
| |
| // Force an input frame rate to be available, or the adaptation call won't |
| // know what framerate to adapt from. |
| VideoSendStream::Stats mock_stats = stats_proxy_->GetStats(); |
| mock_stats.input_frame_rate = 30; |
| stats_proxy_->SetMockStats(mock_stats); |
| video_stream_encoder_->TriggerCpuOveruse(); |
| stats_proxy_->ResetMockStats(); |
| |
| new_video_source.IncomingCapturedFrame( |
| CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| |
| // Framerate now adapted. |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_TRUE(stats.cpu_limited_framerate); |
| EXPECT_EQ(2, stats.number_of_cpu_adapt_changes); |
| |
| // Disable CPU adaptation. |
| video_stream_encoder_->SetSource(&new_video_source, |
| webrtc::DegradationPreference::DISABLED); |
| new_video_source.IncomingCapturedFrame( |
| CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_framerate); |
| EXPECT_EQ(2, stats.number_of_cpu_adapt_changes); |
| |
| // Try to trigger overuse. Should not succeed. |
| stats_proxy_->SetMockStats(mock_stats); |
| video_stream_encoder_->TriggerCpuOveruse(); |
| stats_proxy_->ResetMockStats(); |
| |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_framerate); |
| EXPECT_EQ(2, stats.number_of_cpu_adapt_changes); |
| |
| // Switch back the source with resolution adaptation enabled. |
| video_stream_encoder_->SetSource( |
| &video_source_, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| video_source_.IncomingCapturedFrame(CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_TRUE(stats.cpu_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_framerate); |
| EXPECT_EQ(2, stats.number_of_cpu_adapt_changes); |
| |
| // Trigger CPU normal usage. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| video_source_.IncomingCapturedFrame(CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_framerate); |
| EXPECT_EQ(3, stats.number_of_cpu_adapt_changes); |
| |
| // Back to the source with adaptation off, set it back to maintain-resolution. |
| video_stream_encoder_->SetSource( |
| &new_video_source, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| new_video_source.IncomingCapturedFrame( |
| CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| stats = stats_proxy_->GetStats(); |
| // Disabled, since we previously switched the source to disabled. |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_TRUE(stats.cpu_limited_framerate); |
| EXPECT_EQ(3, stats.number_of_cpu_adapt_changes); |
| |
| // Trigger CPU normal usage. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| new_video_source.IncomingCapturedFrame( |
| CreateFrame(sequence, kWidth, kHeight)); |
| WaitForEncodedFrame(sequence++); |
| stats = stats_proxy_->GetStats(); |
| EXPECT_FALSE(stats.cpu_limited_resolution); |
| EXPECT_FALSE(stats.cpu_limited_framerate); |
| EXPECT_EQ(4, stats.number_of_cpu_adapt_changes); |
| EXPECT_EQ(0, stats.number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| ScalingUpAndDownDoesNothingWithMaintainResolution) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Expect no scaling to begin with. |
| EXPECT_THAT(video_source_.sink_wants(), UnlimitedSinkWants()); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| WaitForEncodedFrame(1); |
| |
| // Trigger scale down. |
| video_stream_encoder_->TriggerQualityLow(); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight)); |
| WaitForEncodedFrame(2); |
| |
| // Expect a scale down. |
| EXPECT_TRUE(video_source_.sink_wants().max_pixel_count); |
| EXPECT_LT(video_source_.sink_wants().max_pixel_count, kWidth * kHeight); |
| |
| // Set resolution scaling disabled. |
| test::FrameForwarder new_video_source; |
| video_stream_encoder_->SetSource( |
| &new_video_source, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| |
| // Trigger scale down. |
| video_stream_encoder_->TriggerQualityLow(); |
| new_video_source.IncomingCapturedFrame(CreateFrame(3, kWidth, kHeight)); |
| WaitForEncodedFrame(3); |
| |
| // Expect no scaling. |
| EXPECT_EQ(std::numeric_limits<int>::max(), |
| new_video_source.sink_wants().max_pixel_count); |
| |
| // Trigger scale up. |
| video_stream_encoder_->TriggerQualityHigh(); |
| new_video_source.IncomingCapturedFrame(CreateFrame(4, kWidth, kHeight)); |
| WaitForEncodedFrame(4); |
| |
| // Expect nothing to change, still no scaling. |
| EXPECT_EQ(std::numeric_limits<int>::max(), |
| new_video_source.sink_wants().max_pixel_count); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| SkipsSameAdaptDownRequest_MaintainFramerateMode) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable MAINTAIN_FRAMERATE preference, no initial limitation. |
| test::FrameForwarder source; |
| video_stream_encoder_->SetSource( |
| &source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| |
| source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| WaitForEncodedFrame(1); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| EXPECT_THAT(source.sink_wants(), |
| FpsMaxResolutionMatches(Lt(kWidth * kHeight))); |
| const int kLastMaxPixelCount = source.sink_wants().max_pixel_count; |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| // Trigger adapt down for same input resolution, expect no change. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| EXPECT_EQ(kLastMaxPixelCount, source.sink_wants().max_pixel_count); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, SkipsSameOrLargerAdaptDownRequest_BalancedMode) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable BALANCED preference, no initial limitation. |
| test::FrameForwarder source; |
| video_stream_encoder_->SetSource(&source, |
| webrtc::DegradationPreference::BALANCED); |
| source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(1); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| |
| // Trigger adapt down, expect scaled down resolution. |
| video_stream_encoder_->TriggerQualityLow(); |
| EXPECT_THAT(source.sink_wants(), |
| FpsMaxResolutionMatches(Lt(kWidth * kHeight))); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| const int kLastMaxPixelCount = source.sink_wants().max_pixel_count; |
| |
| // Trigger adapt down for same input resolution, expect no change. |
| source.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(2); |
| video_stream_encoder_->TriggerQualityLow(); |
| EXPECT_EQ(kLastMaxPixelCount, source.sink_wants().max_pixel_count); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down for larger input resolution, expect no change. |
| source.IncomingCapturedFrame(CreateFrame(3, kWidth + 1, kHeight + 1)); |
| sink_.WaitForEncodedFrame(3); |
| video_stream_encoder_->TriggerQualityLow(); |
| EXPECT_EQ(kLastMaxPixelCount, source.sink_wants().max_pixel_count); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| NoChangeForInitialNormalUsage_MaintainFramerateMode) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable MAINTAIN_FRAMERATE preference, no initial limitation. |
| test::FrameForwarder source; |
| video_stream_encoder_->SetSource( |
| &source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| |
| source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| // Trigger adapt up, expect no change. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| NoChangeForInitialNormalUsage_MaintainResolutionMode) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable MAINTAIN_RESOLUTION preference, no initial limitation. |
| test::FrameForwarder source; |
| video_stream_encoder_->SetSource( |
| &source, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| |
| source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| // Trigger adapt up, expect no change. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, NoChangeForInitialNormalUsage_BalancedMode) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable BALANCED preference, no initial limitation. |
| test::FrameForwarder source; |
| video_stream_encoder_->SetSource(&source, |
| webrtc::DegradationPreference::BALANCED); |
| |
| source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no change. |
| video_stream_encoder_->TriggerQualityHigh(); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, NoChangeForInitialNormalUsage_DisabledMode) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable DISABLED preference, no initial limitation. |
| test::FrameForwarder source; |
| video_stream_encoder_->SetSource(&source, |
| webrtc::DegradationPreference::DISABLED); |
| |
| source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no change. |
| video_stream_encoder_->TriggerQualityHigh(); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| AdaptsResolutionForLowQuality_MaintainFramerateMode) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable MAINTAIN_FRAMERATE preference, no initial limitation. |
| AdaptingFrameForwarder source; |
| source.set_adaptation_enabled(true); |
| video_stream_encoder_->SetSource( |
| &source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| |
| source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| WaitForEncodedFrame(1); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution. |
| video_stream_encoder_->TriggerQualityLow(); |
| source.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight)); |
| WaitForEncodedFrame(2); |
| EXPECT_THAT(source.sink_wants(), |
| FpsMaxResolutionMatches(Lt(kWidth * kHeight))); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no restriction. |
| video_stream_encoder_->TriggerQualityHigh(); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| AdaptsFramerateForLowQuality_MaintainResolutionMode) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| const int kInputFps = 30; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| stats.input_frame_rate = kInputFps; |
| stats_proxy_->SetMockStats(stats); |
| |
| // Expect no scaling to begin with (preference: MAINTAIN_FRAMERATE). |
| video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(1); |
| EXPECT_THAT(video_source_.sink_wants(), FpsMaxResolutionMax()); |
| |
| // Trigger adapt down, expect scaled down resolution. |
| video_stream_encoder_->TriggerQualityLow(); |
| video_source_.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(2); |
| EXPECT_THAT(video_source_.sink_wants(), |
| FpsMaxResolutionMatches(Lt(kWidth * kHeight))); |
| |
| // Enable MAINTAIN_RESOLUTION preference. |
| test::FrameForwarder new_video_source; |
| video_stream_encoder_->SetSourceAndWaitForRestrictionsUpdated( |
| &new_video_source, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| // Give the encoder queue time to process the change in degradation preference |
| // by waiting for an encoded frame. |
| new_video_source.IncomingCapturedFrame(CreateFrame(3, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(3); |
| EXPECT_THAT(new_video_source.sink_wants(), FpsMaxResolutionMax()); |
| |
| // Trigger adapt down, expect reduced framerate. |
| video_stream_encoder_->TriggerQualityLow(); |
| new_video_source.IncomingCapturedFrame(CreateFrame(4, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(4); |
| EXPECT_THAT(new_video_source.sink_wants(), |
| FpsMatchesResolutionMax(Lt(kInputFps))); |
| |
| // Trigger adapt up, expect no restriction. |
| video_stream_encoder_->TriggerQualityHigh(); |
| EXPECT_THAT(new_video_source.sink_wants(), FpsMaxResolutionMax()); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DoesNotScaleBelowSetResolutionLimit) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| const size_t kNumFrames = 10; |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable adapter, expected input resolutions when downscaling: |
| // 1280x720 -> 960x540 -> 640x360 -> 480x270 -> 320x180 (kMinPixelsPerFrame) |
| video_source_.set_adaptation_enabled(true); |
| |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| int downscales = 0; |
| for (size_t i = 1; i <= kNumFrames; i++) { |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(i * kFrameIntervalMs, kWidth, kHeight)); |
| WaitForEncodedFrame(i * kFrameIntervalMs); |
| |
| // Trigger scale down. |
| rtc::VideoSinkWants last_wants = video_source_.sink_wants(); |
| video_stream_encoder_->TriggerQualityLow(); |
| EXPECT_GE(video_source_.sink_wants().max_pixel_count, kMinPixelsPerFrame); |
| |
| if (video_source_.sink_wants().max_pixel_count < last_wants.max_pixel_count) |
| ++downscales; |
| |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(downscales, |
| stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| EXPECT_GT(downscales, 0); |
| } |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| AdaptsResolutionUpAndDownTwiceOnOveruse_MaintainFramerateMode) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable MAINTAIN_FRAMERATE preference, no initial limitation. |
| AdaptingFrameForwarder source; |
| source.set_adaptation_enabled(true); |
| video_stream_encoder_->SetSource( |
| &source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| |
| int64_t timestamp_ms = kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), |
| FpsMaxResolutionMatches(Lt(kWidth * kHeight))); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| // Trigger adapt up, expect no restriction. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), |
| FpsMaxResolutionMatches(Lt(kWidth * kHeight))); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| // Trigger adapt up, expect no restriction. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| AdaptsResolutionUpAndDownTwiceForLowQuality_BalancedMode_NoFpsLimit) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable BALANCED preference, no initial limitation. |
| AdaptingFrameForwarder source; |
| source.set_adaptation_enabled(true); |
| video_stream_encoder_->SetSource(&source, |
| webrtc::DegradationPreference::BALANCED); |
| |
| int64_t timestamp_ms = kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution. |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), |
| FpsMaxResolutionMatches(Lt(kWidth * kHeight))); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no restriction. |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution. |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), |
| FpsMaxResolutionMatches(Lt(kWidth * kHeight))); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no restriction. |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| sink_.WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, AdaptUpIfBwEstimateIsHigherThanMinBitrate) { |
| fake_encoder_.SetResolutionBitrateLimits( |
| {kEncoderBitrateLimits540p, kEncoderBitrateLimits720p}); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kEncoderBitrateLimits720p.min_start_bitrate_bps), |
| DataRate::BitsPerSec(kEncoderBitrateLimits720p.min_start_bitrate_bps), |
| DataRate::BitsPerSec(kEncoderBitrateLimits720p.min_start_bitrate_bps), 0, |
| 0, 0); |
| |
| // Enable MAINTAIN_FRAMERATE preference, no initial limitation. |
| AdaptingFrameForwarder source; |
| source.set_adaptation_enabled(true); |
| video_stream_encoder_->SetSource( |
| &source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| |
| // Insert 720p frame. |
| int64_t timestamp_ms = kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, 1280, 720)); |
| WaitForEncodedFrame(1280, 720); |
| |
| // Reduce bitrate and trigger adapt down. |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kEncoderBitrateLimits540p.min_start_bitrate_bps), |
| DataRate::BitsPerSec(kEncoderBitrateLimits540p.min_start_bitrate_bps), |
| DataRate::BitsPerSec(kEncoderBitrateLimits540p.min_start_bitrate_bps), 0, |
| 0, 0); |
| video_stream_encoder_->TriggerQualityLow(); |
| |
| // Insert 720p frame. It should be downscaled and encoded. |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, 1280, 720)); |
| WaitForEncodedFrame(960, 540); |
| |
| // Trigger adapt up. Higher resolution should not be requested duo to lack |
| // of bitrate. |
| video_stream_encoder_->TriggerQualityHigh(); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMatches(Lt(1280 * 720))); |
| |
| // Increase bitrate. |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kEncoderBitrateLimits720p.min_start_bitrate_bps), |
| DataRate::BitsPerSec(kEncoderBitrateLimits720p.min_start_bitrate_bps), |
| DataRate::BitsPerSec(kEncoderBitrateLimits720p.min_start_bitrate_bps), 0, |
| 0, 0); |
| |
| // Trigger adapt up. Higher resolution should be requested. |
| video_stream_encoder_->TriggerQualityHigh(); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DropFirstFramesIfBwEstimateIsTooLow) { |
| fake_encoder_.SetResolutionBitrateLimits( |
| {kEncoderBitrateLimits540p, kEncoderBitrateLimits720p}); |
| |
| // Set bitrate equal to min bitrate of 540p. |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kEncoderBitrateLimits540p.min_start_bitrate_bps), |
| DataRate::BitsPerSec(kEncoderBitrateLimits540p.min_start_bitrate_bps), |
| DataRate::BitsPerSec(kEncoderBitrateLimits540p.min_start_bitrate_bps), 0, |
| 0, 0); |
| |
| // Enable MAINTAIN_FRAMERATE preference, no initial limitation. |
| AdaptingFrameForwarder source; |
| source.set_adaptation_enabled(true); |
| video_stream_encoder_->SetSource( |
| &source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| |
| // Insert 720p frame. It should be dropped and lower resolution should be |
| // requested. |
| int64_t timestamp_ms = kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, 1280, 720)); |
| ExpectDroppedFrame(); |
| EXPECT_TRUE_WAIT(source.sink_wants().max_pixel_count < 1280 * 720, 5000); |
| |
| // Insert 720p frame. It should be downscaled and encoded. |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, 1280, 720)); |
| WaitForEncodedFrame(960, 540); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| class BalancedDegradationTest : public VideoStreamEncoderTest { |
| protected: |
| void SetupTest() { |
| // Reset encoder for field trials to take effect. |
| ConfigureEncoder(video_encoder_config_.Copy()); |
| OnBitrateUpdated(kTargetBitrateBps); |
| |
| // Enable BALANCED preference. |
| source_.set_adaptation_enabled(true); |
| video_stream_encoder_->SetSource(&source_, DegradationPreference::BALANCED); |
| } |
| |
| void OnBitrateUpdated(int bitrate_bps) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(bitrate_bps), DataRate::BitsPerSec(bitrate_bps), |
| DataRate::BitsPerSec(bitrate_bps), 0, 0, 0); |
| } |
| |
| void InsertFrame() { |
| timestamp_ms_ += kFrameIntervalMs; |
| source_.IncomingCapturedFrame(CreateFrame(timestamp_ms_, kWidth, kHeight)); |
| } |
| |
| void InsertFrameAndWaitForEncoded() { |
| InsertFrame(); |
| sink_.WaitForEncodedFrame(timestamp_ms_); |
| } |
| |
| const int kWidth = 640; // pixels:640x360=230400 |
| const int kHeight = 360; |
| const int64_t kFrameIntervalMs = 150; // Use low fps to not drop any frame. |
| int64_t timestamp_ms_ = 0; |
| AdaptingFrameForwarder source_; |
| }; |
| |
| TEST_F(BalancedDegradationTest, AdaptDownReturnsFalseIfFpsDiffLtThreshold) { |
| test::ScopedFieldTrials field_trials( |
| "WebRTC-Video-BalancedDegradationSettings/" |
| "pixels:57600|129600|230400,fps:7|10|24,fps_diff:1|1|1/"); |
| SetupTest(); |
| |
| // Force input frame rate. |
| const int kInputFps = 24; |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| stats.input_frame_rate = kInputFps; |
| stats_proxy_->SetMockStats(stats); |
| |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsMaxResolutionMax()); |
| |
| // Trigger adapt down, expect scaled down framerate (640x360@24fps). |
| // Fps diff (input-requested:0) < threshold, expect adapting down not to clear |
| // QP samples. |
| EXPECT_FALSE( |
| video_stream_encoder_ |
| ->TriggerQualityScalerHighQpAndReturnIfQpSamplesShouldBeCleared()); |
| EXPECT_THAT(source_.sink_wants(), FpsMatchesResolutionMax(Eq(24))); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(BalancedDegradationTest, AdaptDownReturnsTrueIfFpsDiffGeThreshold) { |
| test::ScopedFieldTrials field_trials( |
| "WebRTC-Video-BalancedDegradationSettings/" |
| "pixels:57600|129600|230400,fps:7|10|24,fps_diff:1|1|1/"); |
| SetupTest(); |
| |
| // Force input frame rate. |
| const int kInputFps = 25; |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| stats.input_frame_rate = kInputFps; |
| stats_proxy_->SetMockStats(stats); |
| |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsMaxResolutionMax()); |
| |
| // Trigger adapt down, expect scaled down framerate (640x360@24fps). |
| // Fps diff (input-requested:1) == threshold, expect adapting down to clear QP |
| // samples. |
| EXPECT_TRUE( |
| video_stream_encoder_ |
| ->TriggerQualityScalerHighQpAndReturnIfQpSamplesShouldBeCleared()); |
| EXPECT_THAT(source_.sink_wants(), FpsMatchesResolutionMax(Eq(24))); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(BalancedDegradationTest, AdaptDownUsesCodecSpecificFps) { |
| test::ScopedFieldTrials field_trials( |
| "WebRTC-Video-BalancedDegradationSettings/" |
| "pixels:57600|129600|230400,fps:7|10|24,vp8_fps:8|11|22/"); |
| SetupTest(); |
| |
| EXPECT_EQ(kVideoCodecVP8, video_encoder_config_.codec_type); |
| |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsMaxResolutionMax()); |
| |
| // Trigger adapt down, expect scaled down framerate (640x360@22fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| EXPECT_THAT(source_.sink_wants(), FpsMatchesResolutionMax(Eq(22))); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(BalancedDegradationTest, NoAdaptUpIfBwEstimateIsLessThanMinBitrate) { |
| test::ScopedFieldTrials field_trials( |
| "WebRTC-Video-BalancedDegradationSettings/" |
| "pixels:57600|129600|230400,fps:7|10|14,kbps:0|0|425/"); |
| SetupTest(); |
| |
| const int kMinBitrateBps = 425000; |
| const int kTooLowMinBitrateBps = 424000; |
| OnBitrateUpdated(kTooLowMinBitrateBps); |
| |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down framerate (640x360@14fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsMatchesResolutionMax(Eq(14))); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution (480x270@14fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsEqResolutionLt(source_.last_wants())); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down framerate (480x270@10fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsLtResolutionEq(source_.last_wants())); |
| EXPECT_EQ(source_.sink_wants().max_framerate_fps, 10); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no upscale in fps (target bitrate < min bitrate). |
| video_stream_encoder_->TriggerQualityHigh(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect upscaled fps (target bitrate == min bitrate). |
| OnBitrateUpdated(kMinBitrateBps); |
| video_stream_encoder_->TriggerQualityHigh(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_EQ(source_.sink_wants().max_framerate_fps, 14); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(BalancedDegradationTest, |
| InitialFrameDropAdaptsFpsAndResolutionInOneStep) { |
| test::ScopedFieldTrials field_trials( |
| "WebRTC-Video-BalancedDegradationSettings/" |
| "pixels:57600|129600|230400,fps:7|24|24/"); |
| SetupTest(); |
| OnBitrateUpdated(kLowTargetBitrateBps); |
| |
| EXPECT_THAT(source_.sink_wants(), UnlimitedSinkWants()); |
| |
| // Insert frame, expect scaled down: |
| // framerate (640x360@24fps) -> resolution (480x270@24fps). |
| InsertFrame(); |
| EXPECT_FALSE(WaitForFrame(1000)); |
| EXPECT_LT(source_.sink_wants().max_pixel_count, kWidth * kHeight); |
| EXPECT_EQ(source_.sink_wants().max_framerate_fps, 24); |
| |
| // Insert frame, expect scaled down: |
| // resolution (320x180@24fps). |
| InsertFrame(); |
| EXPECT_FALSE(WaitForFrame(1000)); |
| EXPECT_LT(source_.sink_wants().max_pixel_count, |
| source_.last_wants().max_pixel_count); |
| EXPECT_EQ(source_.sink_wants().max_framerate_fps, 24); |
| |
| // Frame should not be dropped (min pixels per frame reached). |
| InsertFrameAndWaitForEncoded(); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(BalancedDegradationTest, |
| NoAdaptUpInResolutionIfBwEstimateIsLessThanMinBitrate) { |
| test::ScopedFieldTrials field_trials( |
| "WebRTC-Video-BalancedDegradationSettings/" |
| "pixels:57600|129600|230400,fps:7|10|14,kbps_res:0|0|435/"); |
| SetupTest(); |
| |
| const int kResolutionMinBitrateBps = 435000; |
| const int kTooLowMinResolutionBitrateBps = 434000; |
| OnBitrateUpdated(kTooLowMinResolutionBitrateBps); |
| |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down framerate (640x360@14fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsMatchesResolutionMax(Eq(14))); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution (480x270@14fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsEqResolutionLt(source_.last_wants())); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down framerate (480x270@10fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsLtResolutionEq(source_.last_wants())); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect upscaled fps (no bitrate limit) (480x270@14fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsGtResolutionEq(source_.last_wants())); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no upscale in res (target bitrate < min bitrate). |
| video_stream_encoder_->TriggerQualityHigh(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect upscaled res (target bitrate == min bitrate). |
| OnBitrateUpdated(kResolutionMinBitrateBps); |
| video_stream_encoder_->TriggerQualityHigh(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsEqResolutionGt(source_.last_wants())); |
| EXPECT_EQ(5, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(BalancedDegradationTest, |
| NoAdaptUpInFpsAndResolutionIfBwEstimateIsLessThanMinBitrate) { |
| test::ScopedFieldTrials field_trials( |
| "WebRTC-Video-BalancedDegradationSettings/" |
| "pixels:57600|129600|230400,fps:7|10|14,kbps:0|0|425,kbps_res:0|0|435/"); |
| SetupTest(); |
| |
| const int kMinBitrateBps = 425000; |
| const int kTooLowMinBitrateBps = 424000; |
| const int kResolutionMinBitrateBps = 435000; |
| const int kTooLowMinResolutionBitrateBps = 434000; |
| OnBitrateUpdated(kTooLowMinBitrateBps); |
| |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down framerate (640x360@14fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsMatchesResolutionMax(Eq(14))); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution (480x270@14fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsEqResolutionLt(source_.last_wants())); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down framerate (480x270@10fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsLtResolutionEq(source_.last_wants())); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no upscale (target bitrate < min bitrate). |
| video_stream_encoder_->TriggerQualityHigh(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect upscaled fps (target bitrate == min bitrate). |
| OnBitrateUpdated(kMinBitrateBps); |
| video_stream_encoder_->TriggerQualityHigh(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsGtResolutionEq(source_.last_wants())); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no upscale in res (target bitrate < min bitrate). |
| OnBitrateUpdated(kTooLowMinResolutionBitrateBps); |
| video_stream_encoder_->TriggerQualityHigh(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect upscaled res (target bitrate == min bitrate). |
| OnBitrateUpdated(kResolutionMinBitrateBps); |
| video_stream_encoder_->TriggerQualityHigh(); |
| InsertFrameAndWaitForEncoded(); |
| EXPECT_THAT(source_.sink_wants(), FpsEqResolutionGt(source_.last_wants())); |
| EXPECT_EQ(5, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| AdaptsResolutionOnOveruseAndLowQuality_MaintainFramerateMode) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable MAINTAIN_FRAMERATE preference, no initial limitation. |
| AdaptingFrameForwarder source; |
| source.set_adaptation_enabled(true); |
| video_stream_encoder_->SetSource( |
| &source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| |
| int64_t timestamp_ms = kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger cpu adapt down, expect scaled down resolution (960x540). |
| video_stream_encoder_->TriggerCpuOveruse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), |
| FpsMaxResolutionMatches(Lt(kWidth * kHeight))); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger cpu adapt down, expect scaled down resolution (640x360). |
| video_stream_encoder_->TriggerCpuOveruse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionLt(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger cpu adapt down, expect scaled down resolution (480x270). |
| video_stream_encoder_->TriggerCpuOveruse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionLt(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger quality adapt down, expect scaled down resolution (320x180). |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionLt(source.last_wants())); |
| rtc::VideoSinkWants last_wants = source.sink_wants(); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger quality adapt down, expect no change (min resolution reached). |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMax()); |
| EXPECT_EQ(source.sink_wants().max_pixel_count, last_wants.max_pixel_count); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger quality adapt up, expect upscaled resolution (480x270). |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionGt(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger quality and cpu adapt up since both are most limited, expect |
| // upscaled resolution (640x360). |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionGt(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger quality and cpu adapt up since both are most limited, expect |
| // upscaled resolution (960x540). |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionGt(source.last_wants())); |
| last_wants = source.sink_wants(); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(5, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger cpu adapt up, expect no change since not most limited (960x540). |
| // However the stats will change since the CPU resource is no longer limited. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsEqResolutionEqTo(last_wants)); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(6, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger quality adapt up, expect no restriction (1280x720). |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionGt(source.last_wants())); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_EQ(6, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(5, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, CpuLimitedHistogramIsReported) { |
| const int kWidth = 640; |
| const int kHeight = 360; |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| for (int i = 1; i <= SendStatisticsProxy::kMinRequiredMetricsSamples; ++i) { |
| video_source_.IncomingCapturedFrame(CreateFrame(i, kWidth, kHeight)); |
| WaitForEncodedFrame(i); |
| } |
| |
| video_stream_encoder_->TriggerCpuOveruse(); |
| for (int i = 1; i <= SendStatisticsProxy::kMinRequiredMetricsSamples; ++i) { |
| video_source_.IncomingCapturedFrame(CreateFrame( |
| SendStatisticsProxy::kMinRequiredMetricsSamples + i, kWidth, kHeight)); |
| WaitForEncodedFrame(SendStatisticsProxy::kMinRequiredMetricsSamples + i); |
| } |
| |
| video_stream_encoder_->Stop(); |
| video_stream_encoder_.reset(); |
| stats_proxy_.reset(); |
| |
| EXPECT_METRIC_EQ( |
| 1, metrics::NumSamples("WebRTC.Video.CpuLimitedResolutionInPercent")); |
| EXPECT_METRIC_EQ( |
| 1, metrics::NumEvents("WebRTC.Video.CpuLimitedResolutionInPercent", 50)); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| CpuLimitedHistogramIsNotReportedForDisabledDegradation) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| const int kWidth = 640; |
| const int kHeight = 360; |
| |
| video_stream_encoder_->SetSource(&video_source_, |
| webrtc::DegradationPreference::DISABLED); |
| |
| for (int i = 1; i <= SendStatisticsProxy::kMinRequiredMetricsSamples; ++i) { |
| video_source_.IncomingCapturedFrame(CreateFrame(i, kWidth, kHeight)); |
| WaitForEncodedFrame(i); |
| } |
| |
| video_stream_encoder_->Stop(); |
| video_stream_encoder_.reset(); |
| stats_proxy_.reset(); |
| |
| EXPECT_EQ(0, |
| metrics::NumSamples("WebRTC.Video.CpuLimitedResolutionInPercent")); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, CallsBitrateObserver) { |
| MockBitrateObserver bitrate_observer; |
| video_stream_encoder_->SetBitrateAllocationObserver(&bitrate_observer); |
| |
| const int kDefaultFps = 30; |
| const VideoBitrateAllocation expected_bitrate = |
| SimulcastRateAllocator(fake_encoder_.codec_config()) |
| .Allocate(VideoBitrateAllocationParameters(kLowTargetBitrateBps, |
| kDefaultFps)); |
| |
| EXPECT_CALL(bitrate_observer, OnBitrateAllocationUpdated(expected_bitrate)) |
| .Times(1); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kLowTargetBitrateBps), |
| DataRate::BitsPerSec(kLowTargetBitrateBps), |
| DataRate::BitsPerSec(kLowTargetBitrateBps), 0, 0, 0); |
| |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(rtc::TimeMillis(), codec_width_, codec_height_)); |
| WaitForEncodedFrame(rtc::TimeMillis()); |
| VideoBitrateAllocation bitrate_allocation = |
| fake_encoder_.GetAndResetLastRateControlSettings()->bitrate; |
| // Check that encoder has been updated too, not just allocation observer. |
| EXPECT_EQ(bitrate_allocation.get_sum_bps(), kLowTargetBitrateBps); |
| // TODO(srte): The use of millisecs here looks like an error, but the tests |
| // fails using seconds, this should be investigated. |
| fake_clock_.AdvanceTime(TimeDelta::Millis(1) / kDefaultFps); |
| |
| // Not called on second frame. |
| EXPECT_CALL(bitrate_observer, OnBitrateAllocationUpdated(expected_bitrate)) |
| .Times(0); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(rtc::TimeMillis(), codec_width_, codec_height_)); |
| WaitForEncodedFrame(rtc::TimeMillis()); |
| fake_clock_.AdvanceTime(TimeDelta::Millis(1) / kDefaultFps); |
| |
| // Called after a process interval. |
| EXPECT_CALL(bitrate_observer, OnBitrateAllocationUpdated(expected_bitrate)) |
| .Times(1); |
| const int64_t start_time_ms = rtc::TimeMillis(); |
| while (rtc::TimeMillis() - start_time_ms < kProcessIntervalMs) { |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(rtc::TimeMillis(), codec_width_, codec_height_)); |
| WaitForEncodedFrame(rtc::TimeMillis()); |
| fake_clock_.AdvanceTime(TimeDelta::Millis(1) / kDefaultFps); |
| } |
| |
| // Since rates are unchanged, encoder should not be reconfigured. |
| EXPECT_FALSE(fake_encoder_.GetAndResetLastRateControlSettings().has_value()); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, TemporalLayersNotDisabledIfSupported) { |
| // 2 TLs configured, temporal layers supported by encoder. |
| const int kNumTemporalLayers = 2; |
| ResetEncoder("VP8", 1, kNumTemporalLayers, 1, /*screenshare*/ false); |
| fake_encoder_.SetTemporalLayersSupported(0, true); |
| |
| // Bitrate allocated across temporal layers. |
| const int kTl0Bps = kTargetBitrateBps * |
| webrtc::SimulcastRateAllocator::GetTemporalRateAllocation( |
| kNumTemporalLayers, /*temporal_id*/ 0, |
| /*base_heavy_tl3_alloc*/ false); |
| const int kTl1Bps = kTargetBitrateBps * |
| webrtc::SimulcastRateAllocator::GetTemporalRateAllocation( |
| kNumTemporalLayers, /*temporal_id*/ 1, |
| /*base_heavy_tl3_alloc*/ false); |
| VideoBitrateAllocation expected_bitrate; |
| expected_bitrate.SetBitrate(/*si*/ 0, /*ti*/ 0, kTl0Bps); |
| expected_bitrate.SetBitrate(/*si*/ 0, /*ti*/ 1, kTl1Bps - kTl0Bps); |
| |
| VerifyAllocatedBitrate(expected_bitrate); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, TemporalLayersDisabledIfNotSupported) { |
| // 2 TLs configured, temporal layers not supported by encoder. |
| ResetEncoder("VP8", 1, /*num_temporal_layers*/ 2, 1, /*screenshare*/ false); |
| fake_encoder_.SetTemporalLayersSupported(0, false); |
| |
| // Temporal layers not supported by the encoder. |
| // Total bitrate should be at ti:0. |
| VideoBitrateAllocation expected_bitrate; |
| expected_bitrate.SetBitrate(/*si*/ 0, /*ti*/ 0, kTargetBitrateBps); |
| |
| VerifyAllocatedBitrate(expected_bitrate); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, VerifyBitrateAllocationForTwoStreams) { |
| // 2 TLs configured, temporal layers only supported for first stream. |
| ResetEncoder("VP8", 2, /*num_temporal_layers*/ 2, 1, /*screenshare*/ false); |
| fake_encoder_.SetTemporalLayersSupported(0, true); |
| fake_encoder_.SetTemporalLayersSupported(1, false); |
| |
| const int kS0Bps = 150000; |
| const int kS0Tl0Bps = |
| kS0Bps * |
| webrtc::SimulcastRateAllocator::GetTemporalRateAllocation( |
| /*num_layers*/ 2, /*temporal_id*/ 0, /*base_heavy_tl3_alloc*/ false); |
| const int kS0Tl1Bps = |
| kS0Bps * |
| webrtc::SimulcastRateAllocator::GetTemporalRateAllocation( |
| /*num_layers*/ 2, /*temporal_id*/ 1, /*base_heavy_tl3_alloc*/ false); |
| const int kS1Bps = kTargetBitrateBps - kS0Tl1Bps; |
| // Temporal layers not supported by si:1. |
| VideoBitrateAllocation expected_bitrate; |
| expected_bitrate.SetBitrate(/*si*/ 0, /*ti*/ 0, kS0Tl0Bps); |
| expected_bitrate.SetBitrate(/*si*/ 0, /*ti*/ 1, kS0Tl1Bps - kS0Tl0Bps); |
| expected_bitrate.SetBitrate(/*si*/ 1, /*ti*/ 0, kS1Bps); |
| |
| VerifyAllocatedBitrate(expected_bitrate); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, OveruseDetectorUpdatedOnReconfigureAndAdaption) { |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| const int kFramerate = 24; |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| test::FrameForwarder source; |
| video_stream_encoder_->SetSource( |
| &source, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| |
| // Insert a single frame, triggering initial configuration. |
| source.IncomingCapturedFrame(CreateFrame(1, kFrameWidth, kFrameHeight)); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| |
| EXPECT_EQ( |
| video_stream_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(), |
| kDefaultFramerate); |
| |
| // Trigger reconfigure encoder (without resetting the entire instance). |
| VideoEncoderConfig video_encoder_config; |
| video_encoder_config.codec_type = kVideoCodecVP8; |
| video_encoder_config.max_bitrate_bps = kTargetBitrateBps; |
| video_encoder_config.number_of_streams = 1; |
| video_encoder_config.video_stream_factory = |
| new rtc::RefCountedObject<VideoStreamFactory>(1, kFramerate); |
| video_stream_encoder_->ConfigureEncoder(std::move(video_encoder_config), |
| kMaxPayloadLength); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| |
| // Detector should be updated with fps limit from codec config. |
| EXPECT_EQ( |
| video_stream_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(), |
| kFramerate); |
| |
| // Trigger overuse, max framerate should be reduced. |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| stats.input_frame_rate = kFramerate; |
| stats_proxy_->SetMockStats(stats); |
| video_stream_encoder_->TriggerCpuOveruse(); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| int adapted_framerate = |
| video_stream_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(); |
| EXPECT_LT(adapted_framerate, kFramerate); |
| |
| // Trigger underuse, max framerate should go back to codec configured fps. |
| // Set extra low fps, to make sure it's actually reset, not just incremented. |
| stats = stats_proxy_->GetStats(); |
| stats.input_frame_rate = adapted_framerate / 2; |
| stats_proxy_->SetMockStats(stats); |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| EXPECT_EQ( |
| video_stream_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(), |
| kFramerate); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| OveruseDetectorUpdatedRespectsFramerateAfterUnderuse) { |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| const int kLowFramerate = 15; |
| const int kHighFramerate = 25; |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| test::FrameForwarder source; |
| video_stream_encoder_->SetSource( |
| &source, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| |
| // Trigger initial configuration. |
| VideoEncoderConfig video_encoder_config; |
| video_encoder_config.codec_type = kVideoCodecVP8; |
| video_encoder_config.max_bitrate_bps = kTargetBitrateBps; |
| video_encoder_config.number_of_streams = 1; |
| video_encoder_config.video_stream_factory = |
| new rtc::RefCountedObject<VideoStreamFactory>(1, kLowFramerate); |
| source.IncomingCapturedFrame(CreateFrame(1, kFrameWidth, kFrameHeight)); |
| video_stream_encoder_->ConfigureEncoder(std::move(video_encoder_config), |
| kMaxPayloadLength); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| |
| EXPECT_EQ( |
| video_stream_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(), |
| kLowFramerate); |
| |
| // Trigger overuse, max framerate should be reduced. |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| stats.input_frame_rate = kLowFramerate; |
| stats_proxy_->SetMockStats(stats); |
| video_stream_encoder_->TriggerCpuOveruse(); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| int adapted_framerate = |
| video_stream_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(); |
| EXPECT_LT(adapted_framerate, kLowFramerate); |
| |
| // Reconfigure the encoder with a new (higher max framerate), max fps should |
| // still respect the adaptation. |
| video_encoder_config.video_stream_factory = |
| new rtc::RefCountedObject<VideoStreamFactory>(1, kHighFramerate); |
| source.IncomingCapturedFrame(CreateFrame(1, kFrameWidth, kFrameHeight)); |
| video_stream_encoder_->ConfigureEncoder(std::move(video_encoder_config), |
| kMaxPayloadLength); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| |
| EXPECT_EQ( |
| video_stream_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(), |
| adapted_framerate); |
| |
| // Trigger underuse, max framerate should go back to codec configured fps. |
| stats = stats_proxy_->GetStats(); |
| stats.input_frame_rate = adapted_framerate; |
| stats_proxy_->SetMockStats(stats); |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| EXPECT_EQ( |
| video_stream_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(), |
| kHighFramerate); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| OveruseDetectorUpdatedOnDegradationPreferenceChange) { |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| const int kFramerate = 24; |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| test::FrameForwarder source; |
| video_stream_encoder_->SetSource( |
| &source, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| |
| // Trigger initial configuration. |
| VideoEncoderConfig video_encoder_config; |
| video_encoder_config.codec_type = kVideoCodecVP8; |
| video_encoder_config.max_bitrate_bps = kTargetBitrateBps; |
| video_encoder_config.number_of_streams = 1; |
| video_encoder_config.video_stream_factory = |
| new rtc::RefCountedObject<VideoStreamFactory>(1, kFramerate); |
| source.IncomingCapturedFrame(CreateFrame(1, kFrameWidth, kFrameHeight)); |
| video_stream_encoder_->ConfigureEncoder(std::move(video_encoder_config), |
| kMaxPayloadLength); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| |
| EXPECT_EQ( |
| video_stream_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(), |
| kFramerate); |
| |
| // Trigger overuse, max framerate should be reduced. |
| VideoSendStream::Stats stats = stats_proxy_->GetStats(); |
| stats.input_frame_rate = kFramerate; |
| stats_proxy_->SetMockStats(stats); |
| video_stream_encoder_->TriggerCpuOveruse(); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| int adapted_framerate = |
| video_stream_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(); |
| EXPECT_LT(adapted_framerate, kFramerate); |
| |
| // Change degradation preference to not enable framerate scaling. Target |
| // framerate should be changed to codec defined limit. |
| video_stream_encoder_->SetSourceAndWaitForFramerateUpdated( |
| &source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| EXPECT_EQ( |
| video_stream_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(), |
| kFramerate); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DropsFramesAndScalesWhenBitrateIsTooLow) { |
| const int kTooLowBitrateForFrameSizeBps = 10000; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTooLowBitrateForFrameSizeBps), |
| DataRate::BitsPerSec(kTooLowBitrateForFrameSizeBps), |
| DataRate::BitsPerSec(kTooLowBitrateForFrameSizeBps), 0, 0, 0); |
| const int kWidth = 640; |
| const int kHeight = 360; |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| |
| // Expect to drop this frame, the wait should time out. |
| ExpectDroppedFrame(); |
| |
| // Expect the sink_wants to specify a scaled frame. |
| EXPECT_TRUE_WAIT( |
| video_source_.sink_wants().max_pixel_count < kWidth * kHeight, 5000); |
| |
| int last_pixel_count = video_source_.sink_wants().max_pixel_count; |
| |
| // Next frame is scaled. |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(2, kWidth * 3 / 4, kHeight * 3 / 4)); |
| |
| // Expect to drop this frame, the wait should time out. |
| ExpectDroppedFrame(); |
| |
| EXPECT_TRUE_WAIT( |
| video_source_.sink_wants().max_pixel_count < last_pixel_count, 5000); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| NumberOfDroppedFramesLimitedWhenBitrateIsTooLow) { |
| const int kTooLowBitrateForFrameSizeBps = 10000; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTooLowBitrateForFrameSizeBps), |
| DataRate::BitsPerSec(kTooLowBitrateForFrameSizeBps), |
| DataRate::BitsPerSec(kTooLowBitrateForFrameSizeBps), 0, 0, 0); |
| const int kWidth = 640; |
| const int kHeight = 360; |
| |
| // We expect the n initial frames to get dropped. |
| int i; |
| for (i = 1; i <= kMaxInitialFramedrop; ++i) { |
| video_source_.IncomingCapturedFrame(CreateFrame(i, kWidth, kHeight)); |
| ExpectDroppedFrame(); |
| } |
| // The n+1th frame should not be dropped, even though it's size is too large. |
| video_source_.IncomingCapturedFrame(CreateFrame(i, kWidth, kHeight)); |
| WaitForEncodedFrame(i); |
| |
| // Expect the sink_wants to specify a scaled frame. |
| EXPECT_LT(video_source_.sink_wants().max_pixel_count, kWidth * kHeight); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| InitialFrameDropOffWithMaintainResolutionPreference) { |
| const int kWidth = 640; |
| const int kHeight = 360; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kLowTargetBitrateBps), |
| DataRate::BitsPerSec(kLowTargetBitrateBps), |
| DataRate::BitsPerSec(kLowTargetBitrateBps), 0, 0, 0); |
| |
| // Set degradation preference. |
| video_stream_encoder_->SetSource( |
| &video_source_, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| // Frame should not be dropped, even if it's too large. |
| WaitForEncodedFrame(1); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, InitialFrameDropOffWhenEncoderDisabledScaling) { |
| const int kWidth = 640; |
| const int kHeight = 360; |
| fake_encoder_.SetQualityScaling(false); |
| |
| VideoEncoderConfig video_encoder_config; |
| test::FillEncoderConfiguration(kVideoCodecVP8, 1, &video_encoder_config); |
| // Make format different, to force recreation of encoder. |
| video_encoder_config.video_format.parameters["foo"] = "foo"; |
| video_stream_encoder_->ConfigureEncoder(std::move(video_encoder_config), |
| kMaxPayloadLength); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kLowTargetBitrateBps), |
| DataRate::BitsPerSec(kLowTargetBitrateBps), |
| DataRate::BitsPerSec(kLowTargetBitrateBps), 0, 0, 0); |
| |
| // Force quality scaler reconfiguration by resetting the source. |
| video_stream_encoder_->SetSource(&video_source_, |
| webrtc::DegradationPreference::BALANCED); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| // Frame should not be dropped, even if it's too large. |
| WaitForEncodedFrame(1); |
| |
| video_stream_encoder_->Stop(); |
| fake_encoder_.SetQualityScaling(true); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, InitialFrameDropActivatesWhenBweDrops) { |
| webrtc::test::ScopedFieldTrials field_trials( |
| "WebRTC-Video-QualityScalerSettings/" |
| "initial_bitrate_interval_ms:1000,initial_bitrate_factor:0.2/"); |
| // Reset encoder for field trials to take effect. |
| ConfigureEncoder(video_encoder_config_.Copy()); |
| const int kNotTooLowBitrateForFrameSizeBps = kTargetBitrateBps * 0.2; |
| const int kTooLowBitrateForFrameSizeBps = kTargetBitrateBps * 0.19; |
| const int kWidth = 640; |
| const int kHeight = 360; |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight)); |
| // Frame should not be dropped. |
| WaitForEncodedFrame(1); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kNotTooLowBitrateForFrameSizeBps), |
| DataRate::BitsPerSec(kNotTooLowBitrateForFrameSizeBps), |
| DataRate::BitsPerSec(kNotTooLowBitrateForFrameSizeBps), 0, 0, 0); |
| video_source_.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight)); |
| // Frame should not be dropped. |
| WaitForEncodedFrame(2); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTooLowBitrateForFrameSizeBps), |
| DataRate::BitsPerSec(kTooLowBitrateForFrameSizeBps), |
| DataRate::BitsPerSec(kTooLowBitrateForFrameSizeBps), 0, 0, 0); |
| video_source_.IncomingCapturedFrame(CreateFrame(3, kWidth, kHeight)); |
| // Expect to drop this frame, the wait should time out. |
| ExpectDroppedFrame(); |
| |
| // Expect the sink_wants to specify a scaled frame. |
| EXPECT_TRUE_WAIT( |
| video_source_.sink_wants().max_pixel_count < kWidth * kHeight, 5000); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, RampsUpInQualityWhenBwIsHigh) { |
| webrtc::test::ScopedFieldTrials field_trials( |
| "WebRTC-Video-QualityRampupSettings/min_pixels:1,min_duration_ms:2000/"); |
| |
| // Reset encoder for field trials to take effect. |
| VideoEncoderConfig config = video_encoder_config_.Copy(); |
| config.max_bitrate_bps = kTargetBitrateBps; |
| DataRate max_bitrate = DataRate::BitsPerSec(config.max_bitrate_bps); |
| ConfigureEncoder(std::move(config)); |
| fake_encoder_.SetQp(kQpLow); |
| |
| // Enable MAINTAIN_FRAMERATE preference. |
| AdaptingFrameForwarder source; |
| source.set_adaptation_enabled(true); |
| video_stream_encoder_->SetSource(&source, |
| DegradationPreference::MAINTAIN_FRAMERATE); |
| |
| // Start at low bitrate. |
| const int kLowBitrateBps = 200000; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kLowBitrateBps), |
| DataRate::BitsPerSec(kLowBitrateBps), |
| DataRate::BitsPerSec(kLowBitrateBps), 0, 0, 0); |
| |
| // Expect first frame to be dropped and resolution to be limited. |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| const int64_t kFrameIntervalMs = 100; |
| int64_t timestamp_ms = kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| ExpectDroppedFrame(); |
| EXPECT_TRUE_WAIT(source.sink_wants().max_pixel_count < kWidth * kHeight, |
| 5000); |
| |
| // Increase bitrate to encoder max. |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| max_bitrate, max_bitrate, max_bitrate, 0, 0, 0); |
| |
| // Insert frames and advance |min_duration_ms|. |
| for (size_t i = 1; i <= 10; i++) { |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| } |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_LT(source.sink_wants().max_pixel_count, kWidth * kHeight); |
| |
| fake_clock_.AdvanceTime(TimeDelta::Millis(2000)); |
| |
| // Insert frame should trigger high BW and release quality limitation. |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| // The ramp-up code involves the adaptation queue, give it time to execute. |
| // TODO(hbos): Can we await an appropriate event instead? |
| video_stream_encoder_->WaitUntilAdaptationTaskQueueIsIdle(); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| |
| // Frame should not be adapted. |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| ResolutionNotAdaptedForTooSmallFrame_MaintainFramerateMode) { |
| const int kTooSmallWidth = 10; |
| const int kTooSmallHeight = 10; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable MAINTAIN_FRAMERATE preference, no initial limitation. |
| test::FrameForwarder source; |
| video_stream_encoder_->SetSource( |
| &source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE); |
| EXPECT_THAT(source.sink_wants(), UnlimitedSinkWants()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| |
| // Trigger adapt down, too small frame, expect no change. |
| source.IncomingCapturedFrame(CreateFrame(1, kTooSmallWidth, kTooSmallHeight)); |
| WaitForEncodedFrame(1); |
| video_stream_encoder_->TriggerCpuOveruse(); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| ResolutionNotAdaptedForTooSmallFrame_BalancedMode) { |
| const int kTooSmallWidth = 10; |
| const int kTooSmallHeight = 10; |
| const int kFpsLimit = 7; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable BALANCED preference, no initial limitation. |
| test::FrameForwarder source; |
| video_stream_encoder_->SetSource(&source, |
| webrtc::DegradationPreference::BALANCED); |
| EXPECT_THAT(source.sink_wants(), UnlimitedSinkWants()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| |
| // Trigger adapt down, expect limited framerate. |
| source.IncomingCapturedFrame(CreateFrame(1, kTooSmallWidth, kTooSmallHeight)); |
| WaitForEncodedFrame(1); |
| video_stream_encoder_->TriggerQualityLow(); |
| EXPECT_THAT(source.sink_wants(), FpsMatchesResolutionMax(Eq(kFpsLimit))); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, too small frame, expect no change. |
| source.IncomingCapturedFrame(CreateFrame(2, kTooSmallWidth, kTooSmallHeight)); |
| WaitForEncodedFrame(2); |
| video_stream_encoder_->TriggerQualityLow(); |
| EXPECT_THAT(source.sink_wants(), FpsMatchesResolutionMax(Eq(kFpsLimit))); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, FailingInitEncodeDoesntCauseCrash) { |
| fake_encoder_.ForceInitEncodeFailure(true); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| ResetEncoder("VP8", 2, 1, 1, false); |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(1, kFrameWidth, kFrameHeight)); |
| ExpectDroppedFrame(); |
| video_stream_encoder_->Stop(); |
| } |
| |
| // TODO(sprang): Extend this with fps throttling and any "balanced" extensions. |
| TEST_F(VideoStreamEncoderTest, |
| AdaptsResolutionOnOveruse_MaintainFramerateMode) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| // Enabled default VideoAdapter downscaling. First step is 3/4, not 3/5 as |
| // requested by |
| // VideoStreamEncoder::VideoSourceProxy::RequestResolutionLowerThan(). |
| video_source_.set_adaptation_enabled(true); |
| |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(1 * kFrameIntervalMs, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(kFrameWidth, kFrameHeight); |
| |
| // Trigger CPU overuse, downscale by 3/4. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(2 * kFrameIntervalMs, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame((kFrameWidth * 3) / 4, (kFrameHeight * 3) / 4); |
| |
| // Trigger CPU normal use, return to original resolution. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(3 * kFrameIntervalMs, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(kFrameWidth, kFrameHeight); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| AdaptsFramerateOnOveruse_MaintainResolutionMode) { |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_stream_encoder_->SetSource( |
| &video_source_, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| video_source_.set_adaptation_enabled(true); |
| |
| int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| |
| // Try to trigger overuse. No fps estimate available => no effect. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| |
| // Insert frames for one second to get a stable estimate. |
| for (int i = 0; i < max_framerate_; ++i) { |
| timestamp_ms += kFrameIntervalMs; |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| } |
| |
| // Trigger CPU overuse, reduce framerate by 2/3. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| int num_frames_dropped = 0; |
| for (int i = 0; i < max_framerate_; ++i) { |
| timestamp_ms += kFrameIntervalMs; |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| if (!WaitForFrame(kFrameTimeoutMs)) { |
| ++num_frames_dropped; |
| } else { |
| sink_.CheckLastFrameSizeMatches(kFrameWidth, kFrameHeight); |
| } |
| } |
| |
| // Add some slack to account for frames dropped by the frame dropper. |
| const int kErrorMargin = 1; |
| EXPECT_NEAR(num_frames_dropped, max_framerate_ - (max_framerate_ * 2 / 3), |
| kErrorMargin); |
| |
| // Trigger CPU overuse, reduce framerate by 2/3 again. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| num_frames_dropped = 0; |
| for (int i = 0; i <= max_framerate_; ++i) { |
| timestamp_ms += kFrameIntervalMs; |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| if (!WaitForFrame(kFrameTimeoutMs)) { |
| ++num_frames_dropped; |
| } else { |
| sink_.CheckLastFrameSizeMatches(kFrameWidth, kFrameHeight); |
| } |
| } |
| EXPECT_NEAR(num_frames_dropped, max_framerate_ - (max_framerate_ * 4 / 9), |
| kErrorMargin); |
| |
| // Go back up one step. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| num_frames_dropped = 0; |
| for (int i = 0; i < max_framerate_; ++i) { |
| timestamp_ms += kFrameIntervalMs; |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| if (!WaitForFrame(kFrameTimeoutMs)) { |
| ++num_frames_dropped; |
| } else { |
| sink_.CheckLastFrameSizeMatches(kFrameWidth, kFrameHeight); |
| } |
| } |
| EXPECT_NEAR(num_frames_dropped, max_framerate_ - (max_framerate_ * 2 / 3), |
| kErrorMargin); |
| |
| // Go back up to original mode. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| num_frames_dropped = 0; |
| for (int i = 0; i < max_framerate_; ++i) { |
| timestamp_ms += kFrameIntervalMs; |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| if (!WaitForFrame(kFrameTimeoutMs)) { |
| ++num_frames_dropped; |
| } else { |
| sink_.CheckLastFrameSizeMatches(kFrameWidth, kFrameHeight); |
| } |
| } |
| EXPECT_NEAR(num_frames_dropped, 0, kErrorMargin); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DoesntAdaptDownPastMinFramerate) { |
| const int kFramerateFps = 5; |
| const int kFrameIntervalMs = rtc::kNumMillisecsPerSec / kFramerateFps; |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| |
| // Reconfigure encoder with two temporal layers and screensharing, which will |
| // disable frame dropping and make testing easier. |
| ResetEncoder("VP8", 1, 2, 1, true); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_stream_encoder_->SetSource( |
| &video_source_, webrtc::DegradationPreference::MAINTAIN_RESOLUTION); |
| video_source_.set_adaptation_enabled(true); |
| |
| int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| |
| // Trigger overuse as much as we can. |
| rtc::VideoSinkWants last_wants; |
| do { |
| last_wants = video_source_.sink_wants(); |
| |
| // Insert frames to get a new fps estimate... |
| for (int j = 0; j < kFramerateFps; ++j) { |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| if (video_source_.last_sent_width()) { |
| sink_.WaitForEncodedFrame(timestamp_ms); |
| } |
| timestamp_ms += kFrameIntervalMs; |
| fake_clock_.AdvanceTime(TimeDelta::Millis(kFrameIntervalMs)); |
| } |
| // ...and then try to adapt again. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| } while (video_source_.sink_wants().max_framerate_fps < |
| last_wants.max_framerate_fps); |
| |
| EXPECT_THAT(video_source_.sink_wants(), |
| FpsMatchesResolutionMax(Eq(kMinFramerateFps))); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| AdaptsResolutionAndFramerateForLowQuality_BalancedMode) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| const int64_t kFrameIntervalMs = 150; |
| int64_t timestamp_ms = kFrameIntervalMs; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable BALANCED preference, no initial limitation. |
| AdaptingFrameForwarder source; |
| source.set_adaptation_enabled(true); |
| video_stream_encoder_->SetSource(&source, |
| webrtc::DegradationPreference::BALANCED); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution (960x540@30fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), |
| FpsMaxResolutionMatches(Lt(kWidth * kHeight))); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution (640x360@30fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionLt(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect reduced fps (640x360@15fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsLtResolutionEq(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution (480x270@15fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsEqResolutionLt(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Restrict bitrate, trigger adapt down, expect reduced fps (480x270@10fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsLtResolutionEq(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(5, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect scaled down resolution (320x180@10fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsEqResolutionLt(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(6, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, expect reduced fps (320x180@7fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsLtResolutionEq(source.last_wants())); |
| rtc::VideoSinkWants last_wants = source.sink_wants(); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(7, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt down, min resolution reached, expect no change. |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsEqResolutionEqTo(last_wants)); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(7, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect expect increased fps (320x180@10fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsGtResolutionEq(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(8, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect upscaled resolution (480x270@10fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsEqResolutionGt(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(9, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Increase bitrate, trigger adapt up, expect increased fps (480x270@15fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsGtResolutionEq(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(10, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect upscaled resolution (640x360@15fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsEqResolutionGt(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(11, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect increased fps (640x360@30fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMax()); |
| EXPECT_EQ(source.sink_wants().max_pixel_count, |
| source.last_wants().max_pixel_count); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(12, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect upscaled resolution (960x540@30fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionGt(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(13, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no restriction (1280x720fps@30fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionGt(source.last_wants())); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_EQ(14, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no change. |
| video_stream_encoder_->TriggerQualityHigh(); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_EQ(14, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, AdaptWithTwoReasonsAndDifferentOrder_Framerate) { |
| const int kWidth = 1280; |
| const int kHeight = 720; |
| const int64_t kFrameIntervalMs = 150; |
| int64_t timestamp_ms = kFrameIntervalMs; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable BALANCED preference, no initial limitation. |
| AdaptingFrameForwarder source; |
| source.set_adaptation_enabled(true); |
| video_stream_encoder_->SetSource(&source, |
| webrtc::DegradationPreference::BALANCED); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger cpu adapt down, expect scaled down resolution (960x540@30fps). |
| video_stream_encoder_->TriggerCpuOveruse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), |
| FpsMaxResolutionMatches(Lt(kWidth * kHeight))); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger cpu adapt down, expect scaled down resolution (640x360@30fps). |
| video_stream_encoder_->TriggerCpuOveruse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionLt(source.last_wants())); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger quality adapt down, expect reduced fps (640x360@15fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsLtResolutionEq(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger cpu adapt up, expect no change since QP is most limited. |
| { |
| // Store current sink wants since we expect no change and if there is no |
| // change then last_wants() is not updated. |
| auto previous_sink_wants = source.sink_wants(); |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsEqResolutionEqTo(previous_sink_wants)); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| } |
| |
| // Trigger quality adapt up, expect increased fps (640x360@30fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsGtResolutionEq(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger quality adapt up and Cpu adapt up since both are most limited, |
| // expect increased resolution (960x540@30fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionGt(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger quality adapt up and Cpu adapt up since both are most limited, |
| // expect no restriction (1280x720fps@30fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionGt(source.last_wants())); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no change. |
| video_stream_encoder_->TriggerQualityHigh(); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(4, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| AdaptWithTwoReasonsAndDifferentOrder_Resolution) { |
| const int kWidth = 640; |
| const int kHeight = 360; |
| const int kFpsLimit = 15; |
| const int64_t kFrameIntervalMs = 150; |
| int64_t timestamp_ms = kFrameIntervalMs; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Enable BALANCED preference, no initial limitation. |
| AdaptingFrameForwarder source; |
| source.set_adaptation_enabled(true); |
| video_stream_encoder_->SetSource(&source, |
| webrtc::DegradationPreference::BALANCED); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(kWidth, kHeight); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger cpu adapt down, expect scaled down framerate (640x360@15fps). |
| video_stream_encoder_->TriggerCpuOveruse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMatchesResolutionMax(Eq(kFpsLimit))); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(0, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger quality adapt down, expect scaled down resolution (480x270@15fps). |
| video_stream_encoder_->TriggerQualityLow(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsEqResolutionLt(source.last_wants())); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger cpu adapt up, expect no change because quality is most limited. |
| { |
| auto previous_sink_wants = source.sink_wants(); |
| // Store current sink wants since we expect no change ind if there is no |
| // change then last__wants() is not updated. |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsEqResolutionEqTo(previous_sink_wants)); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| } |
| |
| // Trigger quality adapt up, expect upscaled resolution (640x360@15fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsEqResolutionGt(source.last_wants())); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(1, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger quality and cpu adapt up, expect increased fps (640x360@30fps). |
| video_stream_encoder_->TriggerQualityHigh(); |
| video_stream_encoder_->TriggerCpuUnderuse(); |
| timestamp_ms += kFrameIntervalMs; |
| source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_framerate); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution); |
| EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| // Trigger adapt up, expect no change. |
| video_stream_encoder_->TriggerQualityHigh(); |
| EXPECT_THAT(source.sink_wants(), FpsMaxResolutionMax()); |
| EXPECT_EQ(2, stats_proxy_->GetStats().number_of_cpu_adapt_changes); |
| EXPECT_EQ(3, stats_proxy_->GetStats().number_of_quality_adapt_changes); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, AcceptsFullHdAdaptedDownSimulcastFrames) { |
| const int kFrameWidth = 1920; |
| const int kFrameHeight = 1080; |
| // 3/4 of 1920. |
| const int kAdaptedFrameWidth = 1440; |
| // 3/4 of 1080 rounded down to multiple of 4. |
| const int kAdaptedFrameHeight = 808; |
| const int kFramerate = 24; |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| // Trigger reconfigure encoder (without resetting the entire instance). |
| VideoEncoderConfig video_encoder_config; |
| video_encoder_config.codec_type = kVideoCodecVP8; |
| video_encoder_config.max_bitrate_bps = kTargetBitrateBps; |
| video_encoder_config.number_of_streams = 1; |
| video_encoder_config.video_stream_factory = |
| new rtc::RefCountedObject<CroppingVideoStreamFactory>(1, kFramerate); |
| video_stream_encoder_->ConfigureEncoder(std::move(video_encoder_config), |
| kMaxPayloadLength); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| |
| video_source_.set_adaptation_enabled(true); |
| |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(1, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(kFrameWidth, kFrameHeight); |
| |
| // Trigger CPU overuse, downscale by 3/4. |
| video_stream_encoder_->TriggerCpuOveruse(); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(2, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(kAdaptedFrameWidth, kAdaptedFrameHeight); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, PeriodicallyUpdatesChannelParameters) { |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| const int kLowFps = 2; |
| const int kHighFps = 30; |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| max_framerate_ = kLowFps; |
| |
| // Insert 2 seconds of 2fps video. |
| for (int i = 0; i < kLowFps * 2; ++i) { |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| timestamp_ms += 1000 / kLowFps; |
| } |
| |
| // Make sure encoder is updated with new target. |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| timestamp_ms += 1000 / kLowFps; |
| |
| EXPECT_EQ(kLowFps, fake_encoder_.GetConfiguredInputFramerate()); |
| |
| // Insert 30fps frames for just a little more than the forced update period. |
| const int kVcmTimerIntervalFrames = (kProcessIntervalMs * kHighFps) / 1000; |
| const int kFrameIntervalMs = 1000 / kHighFps; |
| max_framerate_ = kHighFps; |
| for (int i = 0; i < kVcmTimerIntervalFrames + 2; ++i) { |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| // Wait for encoded frame, but skip ahead if it doesn't arrive as it might |
| // be dropped if the encoder hans't been updated with the new higher target |
| // framerate yet, causing it to overshoot the target bitrate and then |
| // suffering the wrath of the media optimizer. |
| TimedWaitForEncodedFrame(timestamp_ms, 2 * kFrameIntervalMs); |
| timestamp_ms += kFrameIntervalMs; |
| } |
| |
| // Don expect correct measurement just yet, but it should be higher than |
| // before. |
| EXPECT_GT(fake_encoder_.GetConfiguredInputFramerate(), kLowFps); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DoesNotUpdateBitrateAllocationWhenSuspended) { |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| const int kTargetBitrateBps = 1000000; |
| |
| MockBitrateObserver bitrate_observer; |
| video_stream_encoder_->SetBitrateAllocationObserver(&bitrate_observer); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| |
| // Insert a first video frame, causes another bitrate update. |
| int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| EXPECT_CALL(bitrate_observer, OnBitrateAllocationUpdated(_)).Times(1); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(timestamp_ms); |
| |
| // Next, simulate video suspension due to pacer queue overrun. |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(0), DataRate::BitsPerSec(0), DataRate::BitsPerSec(0), |
| 0, 1, 0); |
| |
| // Skip ahead until a new periodic parameter update should have occured. |
| timestamp_ms += kProcessIntervalMs; |
| fake_clock_.AdvanceTime(TimeDelta::Millis(kProcessIntervalMs)); |
| |
| // Bitrate observer should not be called. |
| EXPECT_CALL(bitrate_observer, OnBitrateAllocationUpdated(_)).Times(0); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| ExpectDroppedFrame(); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| DefaultCpuAdaptationThresholdsForSoftwareEncoder) { |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| const CpuOveruseOptions default_options; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(1, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(1); |
| EXPECT_EQ(video_stream_encoder_->overuse_detector_proxy_->GetOptions() |
| .low_encode_usage_threshold_percent, |
| default_options.low_encode_usage_threshold_percent); |
| EXPECT_EQ(video_stream_encoder_->overuse_detector_proxy_->GetOptions() |
| .high_encode_usage_threshold_percent, |
| default_options.high_encode_usage_threshold_percent); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| HigherCpuAdaptationThresholdsForHardwareEncoder) { |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| CpuOveruseOptions hardware_options; |
| hardware_options.low_encode_usage_threshold_percent = 150; |
| hardware_options.high_encode_usage_threshold_percent = 200; |
| fake_encoder_.SetIsHardwareAccelerated(true); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(1, kFrameWidth, kFrameHeight)); |
| WaitForEncodedFrame(1); |
| EXPECT_EQ(video_stream_encoder_->overuse_detector_proxy_->GetOptions() |
| .low_encode_usage_threshold_percent, |
| hardware_options.low_encode_usage_threshold_percent); |
| EXPECT_EQ(video_stream_encoder_->overuse_detector_proxy_->GetOptions() |
| .high_encode_usage_threshold_percent, |
| hardware_options.high_encode_usage_threshold_percent); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DropsFramesWhenEncoderOvershoots) { |
| const int kFrameWidth = 320; |
| const int kFrameHeight = 240; |
| const int kFps = 30; |
| const int kTargetBitrateBps = 120000; |
| const int kNumFramesInRun = kFps * 5; // Runs of five seconds. |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| max_framerate_ = kFps; |
| |
| // Insert 3 seconds of video, verify number of drops with normal bitrate. |
| fake_encoder_.SimulateOvershoot(1.0); |
| int num_dropped = 0; |
| for (int i = 0; i < kNumFramesInRun; ++i) { |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| // Wait up to two frame durations for a frame to arrive. |
| if (!TimedWaitForEncodedFrame(timestamp_ms, 2 * 1000 / kFps)) { |
| ++num_dropped; |
| } |
| timestamp_ms += 1000 / kFps; |
| } |
| |
| // Framerate should be measured to be near the expected target rate. |
| EXPECT_NEAR(fake_encoder_.GetLastFramerate(), kFps, 1); |
| |
| // Frame drops should be within 5% of expected 0%. |
| EXPECT_NEAR(num_dropped, 0, 5 * kNumFramesInRun / 100); |
| |
| // Make encoder produce frames at double the expected bitrate during 3 seconds |
| // of video, verify number of drops. Rate needs to be slightly changed in |
| // order to force the rate to be reconfigured. |
| double overshoot_factor = 2.0; |
| if (RateControlSettings::ParseFromFieldTrials().UseEncoderBitrateAdjuster()) { |
| // With bitrate adjuster, when need to overshoot even more to trigger |
| // frame dropping. |
| overshoot_factor *= 2; |
| } |
| fake_encoder_.SimulateOvershoot(overshoot_factor); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps + 1000), |
| DataRate::BitsPerSec(kTargetBitrateBps + 1000), |
| DataRate::BitsPerSec(kTargetBitrateBps + 1000), 0, 0, 0); |
| num_dropped = 0; |
| for (int i = 0; i < kNumFramesInRun; ++i) { |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| // Wait up to two frame durations for a frame to arrive. |
| if (!TimedWaitForEncodedFrame(timestamp_ms, 2 * 1000 / kFps)) { |
| ++num_dropped; |
| } |
| timestamp_ms += 1000 / kFps; |
| } |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Target framerate should be still be near the expected target, despite |
| // the frame drops. |
| EXPECT_NEAR(fake_encoder_.GetLastFramerate(), kFps, 1); |
| |
| // Frame drops should be within 5% of expected 50%. |
| EXPECT_NEAR(num_dropped, kNumFramesInRun / 2, 5 * kNumFramesInRun / 100); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, ConfiguresCorrectFrameRate) { |
| const int kFrameWidth = 320; |
| const int kFrameHeight = 240; |
| const int kActualInputFps = 24; |
| const int kTargetBitrateBps = 120000; |
| |
| ASSERT_GT(max_framerate_, kActualInputFps); |
| |
| int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| max_framerate_ = kActualInputFps; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Insert 3 seconds of video, with an input fps lower than configured max. |
| for (int i = 0; i < kActualInputFps * 3; ++i) { |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight)); |
| // Wait up to two frame durations for a frame to arrive. |
| WaitForEncodedFrame(timestamp_ms); |
| timestamp_ms += 1000 / kActualInputFps; |
| } |
| |
| EXPECT_NEAR(kActualInputFps, fake_encoder_.GetLastFramerate(), 1); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, AccumulatesUpdateRectOnDroppedFrames) { |
| VideoFrame::UpdateRect rect; |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| fake_encoder_.BlockNextEncode(); |
| video_source_.IncomingCapturedFrame( |
| CreateFrameWithUpdatedPixel(1, nullptr, 0)); |
| WaitForEncodedFrame(1); |
| // On the very first frame full update should be forced. |
| rect = fake_encoder_.GetLastUpdateRect(); |
| EXPECT_EQ(rect.offset_x, 0); |
| EXPECT_EQ(rect.offset_y, 0); |
| EXPECT_EQ(rect.height, codec_height_); |
| EXPECT_EQ(rect.width, codec_width_); |
| // Here, the encoder thread will be blocked in the TestEncoder waiting for a |
| // call to ContinueEncode. |
| video_source_.IncomingCapturedFrame( |
| CreateFrameWithUpdatedPixel(2, nullptr, 1)); |
| ExpectDroppedFrame(); |
| video_source_.IncomingCapturedFrame( |
| CreateFrameWithUpdatedPixel(3, nullptr, 10)); |
| ExpectDroppedFrame(); |
| fake_encoder_.ContinueEncode(); |
| WaitForEncodedFrame(3); |
| // Updates to pixels 1 and 10 should be accumulated to one 10x1 rect. |
| rect = fake_encoder_.GetLastUpdateRect(); |
| EXPECT_EQ(rect.offset_x, 1); |
| EXPECT_EQ(rect.offset_y, 0); |
| EXPECT_EQ(rect.width, 10); |
| EXPECT_EQ(rect.height, 1); |
| |
| video_source_.IncomingCapturedFrame( |
| CreateFrameWithUpdatedPixel(4, nullptr, 0)); |
| WaitForEncodedFrame(4); |
| // Previous frame was encoded, so no accumulation should happen. |
| rect = fake_encoder_.GetLastUpdateRect(); |
| EXPECT_EQ(rect.offset_x, 0); |
| EXPECT_EQ(rect.offset_y, 0); |
| EXPECT_EQ(rect.width, 1); |
| EXPECT_EQ(rect.height, 1); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, SetsFrameTypes) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // First frame is always keyframe. |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| EXPECT_THAT( |
| fake_encoder_.LastFrameTypes(), |
| ::testing::ElementsAre(VideoFrameType{VideoFrameType::kVideoFrameKey})); |
| |
| // Insert delta frame. |
| video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr)); |
| WaitForEncodedFrame(2); |
| EXPECT_THAT( |
| fake_encoder_.LastFrameTypes(), |
| ::testing::ElementsAre(VideoFrameType{VideoFrameType::kVideoFrameDelta})); |
| |
| // Request next frame be a key-frame. |
| video_stream_encoder_->SendKeyFrame(); |
| video_source_.IncomingCapturedFrame(CreateFrame(3, nullptr)); |
| WaitForEncodedFrame(3); |
| EXPECT_THAT( |
| fake_encoder_.LastFrameTypes(), |
| ::testing::ElementsAre(VideoFrameType{VideoFrameType::kVideoFrameKey})); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, SetsFrameTypesSimulcast) { |
| // Setup simulcast with three streams. |
| ResetEncoder("VP8", 3, 1, 1, false); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kSimulcastTargetBitrateBps), |
| DataRate::BitsPerSec(kSimulcastTargetBitrateBps), |
| DataRate::BitsPerSec(kSimulcastTargetBitrateBps), 0, 0, 0); |
| // Wait for all three layers before triggering event. |
| sink_.SetNumExpectedLayers(3); |
| |
| // First frame is always keyframe. |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| EXPECT_THAT(fake_encoder_.LastFrameTypes(), |
| ::testing::ElementsAreArray({VideoFrameType::kVideoFrameKey, |
| VideoFrameType::kVideoFrameKey, |
| VideoFrameType::kVideoFrameKey})); |
| |
| // Insert delta frame. |
| video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr)); |
| WaitForEncodedFrame(2); |
| EXPECT_THAT(fake_encoder_.LastFrameTypes(), |
| ::testing::ElementsAreArray({VideoFrameType::kVideoFrameDelta, |
| VideoFrameType::kVideoFrameDelta, |
| VideoFrameType::kVideoFrameDelta})); |
| |
| // Request next frame be a key-frame. |
| // Only first stream is configured to produce key-frame. |
| video_stream_encoder_->SendKeyFrame(); |
| video_source_.IncomingCapturedFrame(CreateFrame(3, nullptr)); |
| WaitForEncodedFrame(3); |
| |
| // TODO(webrtc:10615): Map keyframe request to spatial layer. Currently |
| // keyframe request on any layer triggers keyframe on all layers. |
| EXPECT_THAT(fake_encoder_.LastFrameTypes(), |
| ::testing::ElementsAreArray({VideoFrameType::kVideoFrameKey, |
| VideoFrameType::kVideoFrameKey, |
| VideoFrameType::kVideoFrameKey})); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, RequestKeyframeInternalSource) { |
| // Configure internal source factory and setup test again. |
| encoder_factory_.SetHasInternalSource(true); |
| ResetEncoder("VP8", 1, 1, 1, false); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| // Call encoder directly, simulating internal source where encoded frame |
| // callback in VideoStreamEncoder is called despite no OnFrame(). |
| fake_encoder_.InjectFrame(CreateFrame(1, nullptr), true); |
| EXPECT_TRUE(WaitForFrame(kDefaultTimeoutMs)); |
| EXPECT_THAT( |
| fake_encoder_.LastFrameTypes(), |
| ::testing::ElementsAre(VideoFrameType{VideoFrameType::kVideoFrameKey})); |
| |
| const std::vector<VideoFrameType> kDeltaFrame = { |
| VideoFrameType::kVideoFrameDelta}; |
| // Need to set timestamp manually since manually for injected frame. |
| VideoFrame frame = CreateFrame(101, nullptr); |
| frame.set_timestamp(101); |
| fake_encoder_.InjectFrame(frame, false); |
| EXPECT_TRUE(WaitForFrame(kDefaultTimeoutMs)); |
| EXPECT_THAT( |
| fake_encoder_.LastFrameTypes(), |
| ::testing::ElementsAre(VideoFrameType{VideoFrameType::kVideoFrameDelta})); |
| |
| // Request key-frame. The forces a dummy frame down into the encoder. |
| fake_encoder_.ExpectNullFrame(); |
| video_stream_encoder_->SendKeyFrame(); |
| EXPECT_TRUE(WaitForFrame(kDefaultTimeoutMs)); |
| EXPECT_THAT( |
| fake_encoder_.LastFrameTypes(), |
| ::testing::ElementsAre(VideoFrameType{VideoFrameType::kVideoFrameKey})); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, AdjustsTimestampInternalSource) { |
| // Configure internal source factory and setup test again. |
| encoder_factory_.SetHasInternalSource(true); |
| ResetEncoder("VP8", 1, 1, 1, false); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| int64_t timestamp = 1; |
| EncodedImage image; |
| image.SetEncodedData( |
| EncodedImageBuffer::Create(kTargetBitrateBps / kDefaultFramerate / 8)); |
| image.capture_time_ms_ = ++timestamp; |
| image.SetTimestamp(static_cast<uint32_t>(timestamp * 90)); |
| const int64_t kEncodeFinishDelayMs = 10; |
| image.timing_.encode_start_ms = timestamp; |
| image.timing_.encode_finish_ms = timestamp + kEncodeFinishDelayMs; |
| fake_encoder_.InjectEncodedImage(image); |
| // Wait for frame without incrementing clock. |
| EXPECT_TRUE(sink_.WaitForFrame(kDefaultTimeoutMs)); |
| // Frame is captured kEncodeFinishDelayMs before it's encoded, so restored |
| // capture timestamp should be kEncodeFinishDelayMs in the past. |
| EXPECT_EQ(sink_.GetLastCaptureTimeMs(), |
| fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec - |
| kEncodeFinishDelayMs); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, DoesNotRewriteH264BitstreamWithOptimalSps) { |
| // SPS contains VUI with restrictions on the maximum number of reordered |
| // pictures, there is no need to rewrite the bitstream to enable faster |
| // decoding. |
| ResetEncoder("H264", 1, 1, 1, false); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| |
| fake_encoder_.SetEncodedImageData( |
| EncodedImageBuffer::Create(optimal_sps, sizeof(optimal_sps))); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| |
| EXPECT_THAT(sink_.GetLastEncodedImageData(), |
| testing::ElementsAreArray(optimal_sps)); |
| RTPFragmentationHeader last_fragmentation = sink_.GetLastFragmentation(); |
| ASSERT_THAT(last_fragmentation.fragmentationVectorSize, 1U); |
| EXPECT_EQ(last_fragmentation.fragmentationOffset[0], 4U); |
| EXPECT_EQ(last_fragmentation.fragmentationLength[0], sizeof(optimal_sps) - 4); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, RewritesH264BitstreamWithNonOptimalSps) { |
| // SPS does not contain VUI, the bitstream is will be rewritten with added |
| // VUI with restrictions on the maximum number of reordered pictures to |
| // enable faster decoding. |
| uint8_t original_sps[] = {0, 0, 0, 1, H264::NaluType::kSps, |
| 0x00, 0x00, 0x03, 0x03, 0xF4, |
| 0x05, 0x03, 0xC7, 0xC0}; |
| ResetEncoder("H264", 1, 1, 1, false); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| |
| fake_encoder_.SetEncodedImageData( |
| EncodedImageBuffer::Create(original_sps, sizeof(original_sps))); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr)); |
| WaitForEncodedFrame(1); |
| |
| EXPECT_THAT(sink_.GetLastEncodedImageData(), |
| testing::ElementsAreArray(optimal_sps)); |
| RTPFragmentationHeader last_fragmentation = sink_.GetLastFragmentation(); |
| ASSERT_THAT(last_fragmentation.fragmentationVectorSize, 1U); |
| EXPECT_EQ(last_fragmentation.fragmentationOffset[0], 4U); |
| EXPECT_EQ(last_fragmentation.fragmentationLength[0], sizeof(optimal_sps) - 4); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, CopiesVideoFrameMetadataAfterDownscale) { |
| const int kFrameWidth = 1280; |
| const int kFrameHeight = 720; |
| const int kTargetBitrateBps = 300000; // To low for HD resolution. |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| |
| // Insert a first video frame. It should be dropped because of downscale in |
| // resolution. |
| int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| VideoFrame frame = CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight); |
| frame.set_rotation(kVideoRotation_270); |
| video_source_.IncomingCapturedFrame(frame); |
| |
| ExpectDroppedFrame(); |
| |
| // Second frame is downscaled. |
| timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| frame = CreateFrame(timestamp_ms, kFrameWidth / 2, kFrameHeight / 2); |
| frame.set_rotation(kVideoRotation_90); |
| video_source_.IncomingCapturedFrame(frame); |
| |
| WaitForEncodedFrame(timestamp_ms); |
| sink_.CheckLastFrameRotationMatches(kVideoRotation_90); |
| |
| // Insert another frame, also downscaled. |
| timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| frame = CreateFrame(timestamp_ms, kFrameWidth / 2, kFrameHeight / 2); |
| frame.set_rotation(kVideoRotation_180); |
| video_source_.IncomingCapturedFrame(frame); |
| |
| WaitForEncodedFrame(timestamp_ms); |
| sink_.CheckLastFrameRotationMatches(kVideoRotation_180); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, BandwidthAllocationLowerBound) { |
| const int kFrameWidth = 320; |
| const int kFrameHeight = 180; |
| |
| // Initial rate. |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| /*target_bitrate=*/DataRate::KilobitsPerSec(300), |
| /*stable_target_bitrate=*/DataRate::KilobitsPerSec(300), |
| /*link_allocation=*/DataRate::KilobitsPerSec(300), |
| /*fraction_lost=*/0, |
| /*rtt_ms=*/0, |
| /*cwnd_reduce_ratio=*/0); |
| |
| // Insert a first video frame so that encoder gets configured. |
| int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| VideoFrame frame = CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight); |
| frame.set_rotation(kVideoRotation_270); |
| video_source_.IncomingCapturedFrame(frame); |
| WaitForEncodedFrame(timestamp_ms); |
| |
| // Set a target rate below the minimum allowed by the codec settings. |
| VideoCodec codec_config = fake_encoder_.codec_config(); |
| DataRate min_rate = DataRate::KilobitsPerSec(codec_config.minBitrate); |
| DataRate target_rate = min_rate - DataRate::KilobitsPerSec(1); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| /*target_bitrate=*/target_rate, |
| /*stable_target_bitrate=*/target_rate, |
| /*link_allocation=*/target_rate, |
| /*fraction_lost=*/0, |
| /*rtt_ms=*/0, |
| /*cwnd_reduce_ratio=*/0); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| |
| // Target bitrate and bandwidth allocation should both be capped at min_rate. |
| auto rate_settings = fake_encoder_.GetAndResetLastRateControlSettings(); |
| ASSERT_TRUE(rate_settings.has_value()); |
| DataRate allocation_sum = |
| DataRate::BitsPerSec(rate_settings->bitrate.get_sum_bps()); |
| EXPECT_EQ(min_rate, allocation_sum); |
| EXPECT_EQ(rate_settings->bandwidth_allocation, min_rate); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, EncoderRatesPropagatedOnReconfigure) { |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| // Capture a frame and wait for it to synchronize with the encoder thread. |
| int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| video_source_.IncomingCapturedFrame(CreateFrame(timestamp_ms, nullptr)); |
| WaitForEncodedFrame(1); |
| |
| auto prev_rate_settings = fake_encoder_.GetAndResetLastRateControlSettings(); |
| ASSERT_TRUE(prev_rate_settings.has_value()); |
| EXPECT_EQ(static_cast<int>(prev_rate_settings->framerate_fps), |
| kDefaultFramerate); |
| |
| // Send 1s of video to ensure the framerate is stable at kDefaultFramerate. |
| for (int i = 0; i < 2 * kDefaultFramerate; i++) { |
| timestamp_ms += 1000 / kDefaultFramerate; |
| video_source_.IncomingCapturedFrame(CreateFrame(timestamp_ms, nullptr)); |
| WaitForEncodedFrame(timestamp_ms); |
| } |
| EXPECT_EQ(static_cast<int>(fake_encoder_.GetLastFramerate()), |
| kDefaultFramerate); |
| // Capture larger frame to trigger a reconfigure. |
| codec_height_ *= 2; |
| codec_width_ *= 2; |
| timestamp_ms += 1000 / kDefaultFramerate; |
| video_source_.IncomingCapturedFrame(CreateFrame(timestamp_ms, nullptr)); |
| WaitForEncodedFrame(timestamp_ms); |
| |
| EXPECT_EQ(2, sink_.number_of_reconfigurations()); |
| auto current_rate_settings = |
| fake_encoder_.GetAndResetLastRateControlSettings(); |
| // Ensure we have actually reconfigured twice |
| // The rate settings should have been set again even though |
| // they haven't changed. |
| ASSERT_TRUE(current_rate_settings.has_value()); |
| EXPECT_EQ(prev_rate_settings, current_rate_settings); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| struct MockEncoderSwitchRequestCallback : public EncoderSwitchRequestCallback { |
| MOCK_METHOD(void, RequestEncoderFallback, (), (override)); |
| MOCK_METHOD(void, RequestEncoderSwitch, (const Config& conf), (override)); |
| MOCK_METHOD(void, |
| RequestEncoderSwitch, |
| (const webrtc::SdpVideoFormat& format), |
| (override)); |
| }; |
| |
| TEST_F(VideoStreamEncoderTest, BitrateEncoderSwitch) { |
| constexpr int kDontCare = 100; |
| |
| StrictMock<MockEncoderSwitchRequestCallback> switch_callback; |
| video_send_config_.encoder_settings.encoder_switch_request_callback = |
| &switch_callback; |
| VideoEncoderConfig encoder_config = video_encoder_config_.Copy(); |
| encoder_config.codec_type = kVideoCodecVP8; |
| webrtc::test::ScopedFieldTrials field_trial( |
| "WebRTC-NetworkCondition-EncoderSwitch/" |
| "codec_thresholds:VP8;100;-1|H264;-1;30000," |
| "to_codec:AV1,to_param:ping,to_value:pong,window:2.0/"); |
| |
| // Reset encoder for new configuration to take effect. |
| ConfigureEncoder(std::move(encoder_config)); |
| |
| // Send one frame to trigger ReconfigureEncoder. |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(kDontCare, kDontCare, kDontCare)); |
| |
| using Config = EncoderSwitchRequestCallback::Config; |
| EXPECT_CALL(switch_callback, RequestEncoderSwitch(Matcher<const Config&>( |
| AllOf(Field(&Config::codec_name, "AV1"), |
| Field(&Config::param, "ping"), |
| Field(&Config::value, "pong"))))); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| /*target_bitrate=*/DataRate::KilobitsPerSec(50), |
| /*stable_target_bitrate=*/DataRate::KilobitsPerSec(kDontCare), |
| /*link_allocation=*/DataRate::KilobitsPerSec(kDontCare), |
| /*fraction_lost=*/0, |
| /*rtt_ms=*/0, |
| /*cwnd_reduce_ratio=*/0); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, VideoSuspendedNoEncoderSwitch) { |
| constexpr int kDontCare = 100; |
| |
| StrictMock<MockEncoderSwitchRequestCallback> switch_callback; |
| video_send_config_.encoder_settings.encoder_switch_request_callback = |
| &switch_callback; |
| VideoEncoderConfig encoder_config = video_encoder_config_.Copy(); |
| encoder_config.codec_type = kVideoCodecVP8; |
| webrtc::test::ScopedFieldTrials field_trial( |
| "WebRTC-NetworkCondition-EncoderSwitch/" |
| "codec_thresholds:VP8;100;-1|H264;-1;30000," |
| "to_codec:AV1,to_param:ping,to_value:pong,window:2.0/"); |
| |
| // Reset encoder for new configuration to take effect. |
| ConfigureEncoder(std::move(encoder_config)); |
| |
| // Send one frame to trigger ReconfigureEncoder. |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(kDontCare, kDontCare, kDontCare)); |
| |
| using Config = EncoderSwitchRequestCallback::Config; |
| EXPECT_CALL(switch_callback, RequestEncoderSwitch(Matcher<const Config&>(_))) |
| .Times(0); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| /*target_bitrate=*/DataRate::KilobitsPerSec(0), |
| /*stable_target_bitrate=*/DataRate::KilobitsPerSec(0), |
| /*link_allocation=*/DataRate::KilobitsPerSec(kDontCare), |
| /*fraction_lost=*/0, |
| /*rtt_ms=*/0, |
| /*cwnd_reduce_ratio=*/0); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, ResolutionEncoderSwitch) { |
| constexpr int kSufficientBitrateToNotDrop = 1000; |
| constexpr int kHighRes = 500; |
| constexpr int kLowRes = 100; |
| |
| StrictMock<MockEncoderSwitchRequestCallback> switch_callback; |
| video_send_config_.encoder_settings.encoder_switch_request_callback = |
| &switch_callback; |
| webrtc::test::ScopedFieldTrials field_trial( |
| "WebRTC-NetworkCondition-EncoderSwitch/" |
| "codec_thresholds:VP8;120;-1|H264;-1;30000," |
| "to_codec:AV1,to_param:ping,to_value:pong,window:2.0/"); |
| VideoEncoderConfig encoder_config = video_encoder_config_.Copy(); |
| encoder_config.codec_type = kVideoCodecH264; |
| |
| // Reset encoder for new configuration to take effect. |
| ConfigureEncoder(std::move(encoder_config)); |
| |
| // The VideoStreamEncoder needs some bitrate before it can start encoding, |
| // setting some bitrate so that subsequent calls to WaitForEncodedFrame does |
| // not fail. |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| /*target_bitrate=*/DataRate::KilobitsPerSec(kSufficientBitrateToNotDrop), |
| /*stable_target_bitrate=*/ |
| DataRate::KilobitsPerSec(kSufficientBitrateToNotDrop), |
| /*link_allocation=*/DataRate::KilobitsPerSec(kSufficientBitrateToNotDrop), |
| /*fraction_lost=*/0, |
| /*rtt_ms=*/0, |
| /*cwnd_reduce_ratio=*/0); |
| |
| // Send one frame to trigger ReconfigureEncoder. |
| video_source_.IncomingCapturedFrame(CreateFrame(1, kHighRes, kHighRes)); |
| WaitForEncodedFrame(1); |
| |
| using Config = EncoderSwitchRequestCallback::Config; |
| EXPECT_CALL(switch_callback, RequestEncoderSwitch(Matcher<const Config&>( |
| AllOf(Field(&Config::codec_name, "AV1"), |
| Field(&Config::param, "ping"), |
| Field(&Config::value, "pong"))))); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(2, kLowRes, kLowRes)); |
| WaitForEncodedFrame(2); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, EncoderSelectorCurrentEncoderIsSignaled) { |
| constexpr int kDontCare = 100; |
| StrictMock<MockEncoderSelector> encoder_selector; |
| auto encoder_factory = std::make_unique<test::VideoEncoderProxyFactory>( |
| &fake_encoder_, &encoder_selector); |
| video_send_config_.encoder_settings.encoder_factory = encoder_factory.get(); |
| |
| // Reset encoder for new configuration to take effect. |
| ConfigureEncoder(video_encoder_config_.Copy()); |
| |
| EXPECT_CALL(encoder_selector, OnCurrentEncoder(_)); |
| |
| video_source_.IncomingCapturedFrame( |
| CreateFrame(kDontCare, kDontCare, kDontCare)); |
| video_stream_encoder_->Stop(); |
| |
| // The encoders produces by the VideoEncoderProxyFactory have a pointer back |
| // to it's factory, so in order for the encoder instance in the |
| // |video_stream_encoder_| to be destroyed before the |encoder_factory| we |
| // reset the |video_stream_encoder_| here. |
| video_stream_encoder_.reset(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, EncoderSelectorBitrateSwitch) { |
| constexpr int kDontCare = 100; |
| |
| NiceMock<MockEncoderSelector> encoder_selector; |
| StrictMock<MockEncoderSwitchRequestCallback> switch_callback; |
| video_send_config_.encoder_settings.encoder_switch_request_callback = |
| &switch_callback; |
| auto encoder_factory = std::make_unique<test::VideoEncoderProxyFactory>( |
| &fake_encoder_, &encoder_selector); |
| video_send_config_.encoder_settings.encoder_factory = encoder_factory.get(); |
| |
| // Reset encoder for new configuration to take effect. |
| ConfigureEncoder(video_encoder_config_.Copy()); |
| |
| ON_CALL(encoder_selector, OnAvailableBitrate(_)) |
| .WillByDefault(Return(SdpVideoFormat("AV1"))); |
| EXPECT_CALL(switch_callback, |
| RequestEncoderSwitch(Matcher<const SdpVideoFormat&>( |
| Field(&SdpVideoFormat::name, "AV1")))); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| /*target_bitrate=*/DataRate::KilobitsPerSec(50), |
| /*stable_target_bitrate=*/DataRate::KilobitsPerSec(kDontCare), |
| /*link_allocation=*/DataRate::KilobitsPerSec(kDontCare), |
| /*fraction_lost=*/0, |
| /*rtt_ms=*/0, |
| /*cwnd_reduce_ratio=*/0); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, EncoderSelectorBrokenEncoderSwitch) { |
| constexpr int kSufficientBitrateToNotDrop = 1000; |
| constexpr int kDontCare = 100; |
| |
| NiceMock<MockVideoEncoder> video_encoder; |
| NiceMock<MockEncoderSelector> encoder_selector; |
| StrictMock<MockEncoderSwitchRequestCallback> switch_callback; |
| video_send_config_.encoder_settings.encoder_switch_request_callback = |
| &switch_callback; |
| auto encoder_factory = std::make_unique<test::VideoEncoderProxyFactory>( |
| &video_encoder, &encoder_selector); |
| video_send_config_.encoder_settings.encoder_factory = encoder_factory.get(); |
| |
| // Reset encoder for new configuration to take effect. |
| ConfigureEncoder(video_encoder_config_.Copy()); |
| |
| // The VideoStreamEncoder needs some bitrate before it can start encoding, |
| // setting some bitrate so that subsequent calls to WaitForEncodedFrame does |
| // not fail. |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| /*target_bitrate=*/DataRate::KilobitsPerSec(kSufficientBitrateToNotDrop), |
| /*stable_target_bitrate=*/ |
| DataRate::KilobitsPerSec(kSufficientBitrateToNotDrop), |
| /*link_allocation=*/DataRate::KilobitsPerSec(kSufficientBitrateToNotDrop), |
| /*fraction_lost=*/0, |
| /*rtt_ms=*/0, |
| /*cwnd_reduce_ratio=*/0); |
| |
| ON_CALL(video_encoder, Encode(_, _)) |
| .WillByDefault(Return(WEBRTC_VIDEO_CODEC_ENCODER_FAILURE)); |
| ON_CALL(encoder_selector, OnEncoderBroken()) |
| .WillByDefault(Return(SdpVideoFormat("AV2"))); |
| |
| rtc::Event encode_attempted; |
| EXPECT_CALL(switch_callback, |
| RequestEncoderSwitch(Matcher<const SdpVideoFormat&>(_))) |
| .WillOnce([&encode_attempted](const SdpVideoFormat& format) { |
| EXPECT_EQ(format.name, "AV2"); |
| encode_attempted.Set(); |
| }); |
| |
| video_source_.IncomingCapturedFrame(CreateFrame(1, kDontCare, kDontCare)); |
| encode_attempted.Wait(3000); |
| |
| video_stream_encoder_->Stop(); |
| |
| // The encoders produces by the VideoEncoderProxyFactory have a pointer back |
| // to it's factory, so in order for the encoder instance in the |
| // |video_stream_encoder_| to be destroyed before the |encoder_factory| we |
| // reset the |video_stream_encoder_| here. |
| video_stream_encoder_.reset(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| AllocationPropagatedToEncoderWhenTargetRateChanged) { |
| const int kFrameWidth = 320; |
| const int kFrameHeight = 180; |
| |
| // Set initial rate. |
| auto rate = DataRate::KilobitsPerSec(100); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| /*target_bitrate=*/rate, |
| /*stable_target_bitrate=*/rate, |
| /*link_allocation=*/rate, |
| /*fraction_lost=*/0, |
| /*rtt_ms=*/0, |
| /*cwnd_reduce_ratio=*/0); |
| |
| // Insert a first video frame so that encoder gets configured. |
| int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| VideoFrame frame = CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight); |
| frame.set_rotation(kVideoRotation_270); |
| video_source_.IncomingCapturedFrame(frame); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_EQ(1, fake_encoder_.GetNumSetRates()); |
| |
| // Change of target bitrate propagates to the encoder. |
| auto new_stable_rate = rate - DataRate::KilobitsPerSec(5); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| /*target_bitrate=*/new_stable_rate, |
| /*stable_target_bitrate=*/new_stable_rate, |
| /*link_allocation=*/rate, |
| /*fraction_lost=*/0, |
| /*rtt_ms=*/0, |
| /*cwnd_reduce_ratio=*/0); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| EXPECT_EQ(2, fake_encoder_.GetNumSetRates()); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, |
| AllocationNotPropagatedToEncoderWhenTargetRateUnchanged) { |
| const int kFrameWidth = 320; |
| const int kFrameHeight = 180; |
| |
| // Set initial rate. |
| auto rate = DataRate::KilobitsPerSec(100); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| /*target_bitrate=*/rate, |
| /*stable_target_bitrate=*/rate, |
| /*link_allocation=*/rate, |
| /*fraction_lost=*/0, |
| /*rtt_ms=*/0, |
| /*cwnd_reduce_ratio=*/0); |
| |
| // Insert a first video frame so that encoder gets configured. |
| int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| VideoFrame frame = CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight); |
| frame.set_rotation(kVideoRotation_270); |
| video_source_.IncomingCapturedFrame(frame); |
| WaitForEncodedFrame(timestamp_ms); |
| EXPECT_EQ(1, fake_encoder_.GetNumSetRates()); |
| |
| // Set a higher target rate without changing the link_allocation. Should not |
| // reset encoder's rate. |
| auto new_stable_rate = rate - DataRate::KilobitsPerSec(5); |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| /*target_bitrate=*/rate, |
| /*stable_target_bitrate=*/new_stable_rate, |
| /*link_allocation=*/rate, |
| /*fraction_lost=*/0, |
| /*rtt_ms=*/0, |
| /*cwnd_reduce_ratio=*/0); |
| video_stream_encoder_->WaitUntilTaskQueueIsIdle(); |
| EXPECT_EQ(1, fake_encoder_.GetNumSetRates()); |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, AutomaticAnimationDetection) { |
| test::ScopedFieldTrials field_trials( |
| "WebRTC-AutomaticAnimationDetectionScreenshare/" |
| "enabled:true,min_fps:20,min_duration_ms:1000,min_area_ratio:0.8/"); |
| const int kFramerateFps = 30; |
| const int kWidth = 1920; |
| const int kHeight = 1080; |
| const int kNumFrames = 2 * kFramerateFps; // >1 seconds of frames. |
| // Works on screenshare mode. |
| ResetEncoder("VP8", 1, 1, 1, /*screenshare*/ true); |
| // We rely on the automatic resolution adaptation, but we handle framerate |
| // adaptation manually by mocking the stats proxy. |
| video_source_.set_adaptation_enabled(true); |
| |
| // BALANCED degradation preference is required for this feature. |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| video_stream_encoder_->SetSource(&video_source_, |
| webrtc::DegradationPreference::BALANCED); |
| EXPECT_THAT(video_source_.sink_wants(), UnlimitedSinkWants()); |
| |
| VideoFrame frame = CreateFrame(1, kWidth, kHeight); |
| frame.set_update_rect(VideoFrame::UpdateRect{0, 0, kWidth, kHeight}); |
| |
| // Pass enough frames with the full update to trigger animation detection. |
| for (int i = 0; i < kNumFrames; ++i) { |
| int64_t timestamp_ms = |
| fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| frame.set_ntp_time_ms(timestamp_ms); |
| frame.set_timestamp_us(timestamp_ms * 1000); |
| video_source_.IncomingCapturedFrame(frame); |
| WaitForEncodedFrame(timestamp_ms); |
| } |
| |
| // Resolution should be limited. |
| rtc::VideoSinkWants expected; |
| expected.max_framerate_fps = kFramerateFps; |
| expected.max_pixel_count = 1280 * 720 + 1; |
| EXPECT_THAT(video_source_.sink_wants(), FpsEqResolutionLt(expected)); |
| |
| // Pass one frame with no known update. |
| // Resolution cap should be removed immediately. |
| int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| frame.set_ntp_time_ms(timestamp_ms); |
| frame.set_timestamp_us(timestamp_ms * 1000); |
| frame.clear_update_rect(); |
| |
| video_source_.IncomingCapturedFrame(frame); |
| WaitForEncodedFrame(timestamp_ms); |
| |
| // Resolution should be unlimited now. |
| EXPECT_THAT(video_source_.sink_wants(), |
| FpsMatchesResolutionMax(Eq(kFramerateFps))); |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| TEST_F(VideoStreamEncoderTest, ConfiguresVp9SvcAtOddResolutions) { |
| const int kWidth = 720; // 540p adapted down. |
| const int kHeight = 405; |
| const int kNumFrames = 3; |
| // Works on screenshare mode. |
| ResetEncoder("VP9", /*num_streams=*/1, /*num_temporal_layers=*/1, |
| /*num_spatial_layers=*/2, /*screenshare=*/true); |
| |
| video_source_.set_adaptation_enabled(true); |
| |
| video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources( |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), |
| DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0); |
| |
| VideoFrame frame = CreateFrame(1, kWidth, kHeight); |
| |
| // Pass enough frames with the full update to trigger animation detection. |
| for (int i = 0; i < kNumFrames; ++i) { |
| int64_t timestamp_ms = |
| fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec; |
| frame.set_ntp_time_ms(timestamp_ms); |
| frame.set_timestamp_us(timestamp_ms * 1000); |
| video_source_.IncomingCapturedFrame(frame); |
| WaitForEncodedFrame(timestamp_ms); |
| } |
| |
| video_stream_encoder_->Stop(); |
| } |
| |
| } // namespace webrtc |