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Unified Diff: webrtc/video/vie_encoder_unittest.cc

Issue 2995433002: Rename ViEEncoder to VideoStreamEncoder. (Closed)
Patch Set: Created 3 years, 4 months ago
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Index: webrtc/video/vie_encoder_unittest.cc
diff --git a/webrtc/video/vie_encoder_unittest.cc b/webrtc/video/vie_encoder_unittest.cc
deleted file mode 100644
index 09ac4c95ea09d0f3260bdcd0c65ad0d08ad86696..0000000000000000000000000000000000000000
--- a/webrtc/video/vie_encoder_unittest.cc
+++ /dev/null
@@ -1,3143 +0,0 @@
-/*
- * 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 <algorithm>
-#include <limits>
-#include <utility>
-
-#include "webrtc/api/video/i420_buffer.h"
-#include "webrtc/media/base/videoadapter.h"
-#include "webrtc/modules/video_coding/codecs/vp8/temporal_layers.h"
-#include "webrtc/modules/video_coding/utility/default_video_bitrate_allocator.h"
-#include "webrtc/rtc_base/fakeclock.h"
-#include "webrtc/rtc_base/logging.h"
-#include "webrtc/system_wrappers/include/metrics_default.h"
-#include "webrtc/system_wrappers/include/sleep.h"
-#include "webrtc/test/encoder_settings.h"
-#include "webrtc/test/fake_encoder.h"
-#include "webrtc/test/frame_generator.h"
-#include "webrtc/test/gmock.h"
-#include "webrtc/test/gtest.h"
-#include "webrtc/video/send_statistics_proxy.h"
-#include "webrtc/video/vie_encoder.h"
-
-namespace {
-// TODO(kthelgason): Lower this limit when better testing
-// on MediaCodec and fallback implementations are in place.
-const int kMinPixelsPerFrame = 320 * 180;
-const int kMinFramerateFps = 2;
-const int64_t kFrameTimeoutMs = 100;
-} // namespace
-
-namespace webrtc {
-
-using DegredationPreference = VideoSendStream::DegradationPreference;
-using ScaleReason = AdaptationObserverInterface::AdaptReason;
-using ::testing::_;
-using ::testing::Return;
-
-namespace {
-const size_t kMaxPayloadLength = 1440;
-const int kTargetBitrateBps = 1000000;
-const int kLowTargetBitrateBps = kTargetBitrateBps / 10;
-const int kMaxInitialFramedrop = 4;
-const int kDefaultFramerate = 30;
-
-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_;
-};
-
-class CpuOveruseDetectorProxy : public OveruseFrameDetector {
- public:
- CpuOveruseDetectorProxy(const CpuOveruseOptions& options,
- AdaptationObserverInterface* overuse_observer,
- EncodedFrameObserver* encoder_timing_,
- CpuOveruseMetricsObserver* metrics_observer)
- : OveruseFrameDetector(options,
- overuse_observer,
- encoder_timing_,
- metrics_observer),
- last_target_framerate_fps_(-1) {}
- virtual ~CpuOveruseDetectorProxy() {}
-
- void OnTargetFramerateUpdated(int framerate_fps) override {
- rtc::CritScope cs(&lock_);
- last_target_framerate_fps_ = framerate_fps;
- OveruseFrameDetector::OnTargetFramerateUpdated(framerate_fps);
- }
-
- int GetLastTargetFramerate() {
- rtc::CritScope cs(&lock_);
- return last_target_framerate_fps_;
- }
-
- private:
- rtc::CriticalSection lock_;
- int last_target_framerate_fps_ GUARDED_BY(lock_);
-};
-
-class ViEEncoderUnderTest : public ViEEncoder {
- public:
- ViEEncoderUnderTest(SendStatisticsProxy* stats_proxy,
- const VideoSendStream::Config::EncoderSettings& settings)
- : ViEEncoder(1 /* number_of_cores */,
- stats_proxy,
- settings,
- nullptr /* pre_encode_callback */,
- nullptr /* encoder_timing */,
- std::unique_ptr<OveruseFrameDetector>(
- overuse_detector_proxy_ = new CpuOveruseDetectorProxy(
- GetCpuOveruseOptions(settings.full_overuse_time),
- this,
- nullptr,
- stats_proxy))) {}
-
- void PostTaskAndWait(bool down, AdaptReason reason) {
- rtc::Event event(false, false);
- encoder_queue()->PostTask([this, &event, reason, down] {
- down ? AdaptDown(reason) : AdaptUp(reason);
- 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(false, false);
- encoder_queue()->PostTask([&event] {
- event.Set();
- });
- ASSERT_TRUE(event.Wait(5000));
- }
-
- void TriggerCpuOveruse() { PostTaskAndWait(true, AdaptReason::kCpu); }
-
- void TriggerCpuNormalUsage() { PostTaskAndWait(false, AdaptReason::kCpu); }
-
- void TriggerQualityLow() { PostTaskAndWait(true, AdaptReason::kQuality); }
-
- void TriggerQualityHigh() { PostTaskAndWait(false, AdaptReason::kQuality); }
-
- CpuOveruseDetectorProxy* overuse_detector_proxy_;
-};
-
-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.temporal_layer_thresholds_bps.resize(num_temporal_layers_ - 1);
- 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) {
- rtc::CritScope cs(&crit_);
- adaptation_enabled_ = enabled;
- }
-
- bool adaption_enabled() const {
- rtc::CritScope cs(&crit_);
- return adaptation_enabled_;
- }
-
- rtc::VideoSinkWants last_wants() const {
- rtc::CritScope cs(&crit_);
- return last_wants_;
- }
-
- 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(new rtc::RefCountedObject<TestBuffer>(
- nullptr, out_width, out_height),
- 99, 99, kVideoRotation_0);
- adapted_frame.set_ntp_time_ms(video_frame.ntp_time_ms());
- test::FrameForwarder::IncomingCapturedFrame(adapted_frame);
- }
- } else {
- test::FrameForwarder::IncomingCapturedFrame(video_frame);
- }
- }
-
- void AddOrUpdateSink(rtc::VideoSinkInterface<VideoFrame>* sink,
- const rtc::VideoSinkWants& wants) override {
- rtc::CritScope cs(&crit_);
- last_wants_ = sink_wants();
- adapter_.OnResolutionFramerateRequest(wants.target_pixel_count,
- wants.max_pixel_count,
- wants.max_framerate_fps);
- test::FrameForwarder::AddOrUpdateSink(sink, wants);
- }
- cricket::VideoAdapter adapter_;
- bool adaptation_enabled_ GUARDED_BY(crit_);
- rtc::VideoSinkWants last_wants_ GUARDED_BY(crit_);
-};
-
-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 {
- rtc::CritScope cs(&lock_);
- if (mock_stats_)
- return *mock_stats_;
- return SendStatisticsProxy::GetStats();
- }
-
- void SetMockStats(const VideoSendStream::Stats& stats) {
- rtc::CritScope cs(&lock_);
- mock_stats_.emplace(stats);
- }
-
- void ResetMockStats() {
- rtc::CritScope cs(&lock_);
- mock_stats_.reset();
- }
-
- private:
- rtc::CriticalSection lock_;
- rtc::Optional<VideoSendStream::Stats> mock_stats_ GUARDED_BY(lock_);
-};
-
-class MockBitrateObserver : public VideoBitrateAllocationObserver {
- public:
- MOCK_METHOD1(OnBitrateAllocationUpdated, void(const BitrateAllocation&));
-};
-
-} // namespace
-
-class ViEEncoderTest : public ::testing::Test {
- public:
- static const int kDefaultTimeoutMs = 30 * 1000;
-
- ViEEncoderTest()
- : video_send_config_(VideoSendStream::Config(nullptr)),
- codec_width_(320),
- codec_height_(240),
- max_framerate_(30),
- 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 = &fake_encoder_;
- video_send_config_.encoder_settings.payload_name = "FAKE";
- video_send_config_.encoder_settings.payload_type = 125;
-
- VideoEncoderConfig video_encoder_config;
- test::FillEncoderConfiguration(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_.SetTimeMicros(1234);
-
- ConfigureEncoder(std::move(video_encoder_config), true /* nack_enabled */);
- }
-
- void ConfigureEncoder(VideoEncoderConfig video_encoder_config,
- bool nack_enabled) {
- if (vie_encoder_)
- vie_encoder_->Stop();
- vie_encoder_.reset(new ViEEncoderUnderTest(
- stats_proxy_.get(), video_send_config_.encoder_settings));
- vie_encoder_->SetSink(&sink_, false /* rotation_applied */);
- vie_encoder_->SetSource(
- &video_source_,
- VideoSendStream::DegradationPreference::kMaintainFramerate);
- vie_encoder_->SetStartBitrate(kTargetBitrateBps);
- vie_encoder_->ConfigureEncoder(std::move(video_encoder_config),
- kMaxPayloadLength, nack_enabled);
- vie_encoder_->WaitUntilTaskQueueIsIdle();
- }
-
- void ResetEncoder(const std::string& payload_name,
- size_t num_streams,
- size_t num_temporal_layers,
- bool nack_enabled,
- bool screenshare) {
- video_send_config_.encoder_settings.payload_name = payload_name;
-
- VideoEncoderConfig video_encoder_config;
- video_encoder_config.number_of_streams = num_streams;
- video_encoder_config.max_bitrate_bps = kTargetBitrateBps;
- 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;
- ConfigureEncoder(std::move(video_encoder_config), nack_enabled);
- }
-
- VideoFrame CreateFrame(int64_t ntp_time_ms,
- rtc::Event* destruction_event) const {
- VideoFrame frame(new rtc::RefCountedObject<TestBuffer>(
- destruction_event, codec_width_, codec_height_),
- 99, 99, kVideoRotation_0);
- frame.set_ntp_time_ms(ntp_time_ms);
- return frame;
- }
-
- VideoFrame CreateFrame(int64_t ntp_time_ms, int width, int height) const {
- VideoFrame frame(
- new rtc::RefCountedObject<TestBuffer>(nullptr, width, height), 99, 99,
- kVideoRotation_0);
- frame.set_ntp_time_ms(ntp_time_ms);
- frame.set_timestamp_us(ntp_time_ms * 1000);
- return frame;
- }
-
- void VerifyNoLimitation(const rtc::VideoSinkWants& wants) {
- EXPECT_EQ(std::numeric_limits<int>::max(), wants.max_framerate_fps);
- EXPECT_EQ(std::numeric_limits<int>::max(), wants.max_pixel_count);
- EXPECT_FALSE(wants.target_pixel_count);
- }
-
- void VerifyFpsEqResolutionEq(const rtc::VideoSinkWants& wants1,
- const rtc::VideoSinkWants& wants2) {
- EXPECT_EQ(wants1.max_framerate_fps, wants2.max_framerate_fps);
- EXPECT_EQ(wants1.max_pixel_count, wants2.max_pixel_count);
- }
-
- void VerifyFpsMaxResolutionLt(const rtc::VideoSinkWants& wants1,
- const rtc::VideoSinkWants& wants2) {
- EXPECT_EQ(std::numeric_limits<int>::max(), wants1.max_framerate_fps);
- EXPECT_LT(wants1.max_pixel_count, wants2.max_pixel_count);
- EXPECT_GT(wants1.max_pixel_count, 0);
- }
-
- void VerifyFpsMaxResolutionGt(const rtc::VideoSinkWants& wants1,
- const rtc::VideoSinkWants& wants2) {
- EXPECT_EQ(std::numeric_limits<int>::max(), wants1.max_framerate_fps);
- EXPECT_GT(wants1.max_pixel_count, wants2.max_pixel_count);
- }
-
- void VerifyFpsMaxResolutionEq(const rtc::VideoSinkWants& wants1,
- const rtc::VideoSinkWants& wants2) {
- EXPECT_EQ(std::numeric_limits<int>::max(), wants1.max_framerate_fps);
- EXPECT_EQ(wants1.max_pixel_count, wants2.max_pixel_count);
- }
-
- void VerifyFpsLtResolutionEq(const rtc::VideoSinkWants& wants1,
- const rtc::VideoSinkWants& wants2) {
- EXPECT_LT(wants1.max_framerate_fps, wants2.max_framerate_fps);
- EXPECT_EQ(wants1.max_pixel_count, wants2.max_pixel_count);
- }
-
- void VerifyFpsGtResolutionEq(const rtc::VideoSinkWants& wants1,
- const rtc::VideoSinkWants& wants2) {
- EXPECT_GT(wants1.max_framerate_fps, wants2.max_framerate_fps);
- EXPECT_EQ(wants1.max_pixel_count, wants2.max_pixel_count);
- }
-
- void VerifyFpsEqResolutionLt(const rtc::VideoSinkWants& wants1,
- const rtc::VideoSinkWants& wants2) {
- EXPECT_EQ(wants1.max_framerate_fps, wants2.max_framerate_fps);
- EXPECT_LT(wants1.max_pixel_count, wants2.max_pixel_count);
- EXPECT_GT(wants1.max_pixel_count, 0);
- }
-
- void VerifyFpsEqResolutionGt(const rtc::VideoSinkWants& wants1,
- const rtc::VideoSinkWants& wants2) {
- EXPECT_EQ(wants1.max_framerate_fps, wants2.max_framerate_fps);
- EXPECT_GT(wants1.max_pixel_count, wants2.max_pixel_count);
- }
-
- void VerifyFpsMaxResolutionLt(const rtc::VideoSinkWants& wants,
- int pixel_count) {
- EXPECT_EQ(std::numeric_limits<int>::max(), wants.max_framerate_fps);
- EXPECT_LT(wants.max_pixel_count, pixel_count);
- EXPECT_GT(wants.max_pixel_count, 0);
- }
-
- void VerifyFpsLtResolutionMax(const rtc::VideoSinkWants& wants, int fps) {
- EXPECT_LT(wants.max_framerate_fps, fps);
- EXPECT_EQ(std::numeric_limits<int>::max(), wants.max_pixel_count);
- EXPECT_FALSE(wants.target_pixel_count);
- }
-
- void VerifyFpsEqResolutionMax(const rtc::VideoSinkWants& wants,
- int expected_fps) {
- EXPECT_EQ(expected_fps, wants.max_framerate_fps);
- EXPECT_EQ(std::numeric_limits<int>::max(), wants.max_pixel_count);
- EXPECT_FALSE(wants.target_pixel_count);
- }
-
- void WaitForEncodedFrame(int64_t expected_ntp_time) {
- sink_.WaitForEncodedFrame(expected_ntp_time);
- fake_clock_.AdvanceTimeMicros(rtc::kNumMicrosecsPerSec / max_framerate_);
- }
-
- bool TimedWaitForEncodedFrame(int64_t expected_ntp_time, int64_t timeout_ms) {
- bool ok = sink_.TimedWaitForEncodedFrame(expected_ntp_time, timeout_ms);
- fake_clock_.AdvanceTimeMicros(rtc::kNumMicrosecsPerSec / max_framerate_);
- return ok;
- }
-
- void WaitForEncodedFrame(uint32_t expected_width, uint32_t expected_height) {
- sink_.WaitForEncodedFrame(expected_width, expected_height);
- fake_clock_.AdvanceTimeMicros(rtc::kNumMicrosecsPerSec / max_framerate_);
- }
-
- void ExpectDroppedFrame() {
- sink_.ExpectDroppedFrame();
- fake_clock_.AdvanceTimeMicros(rtc::kNumMicrosecsPerSec / max_framerate_);
- }
-
- bool WaitForFrame(int64_t timeout_ms) {
- bool ok = sink_.WaitForFrame(timeout_ms);
- fake_clock_.AdvanceTimeMicros(rtc::kNumMicrosecsPerSec / max_framerate_);
- return ok;
- }
-
- class TestEncoder : public test::FakeEncoder {
- public:
- TestEncoder()
- : FakeEncoder(Clock::GetRealTimeClock()),
- continue_encode_event_(false, false) {}
-
- VideoCodec codec_config() const {
- rtc::CritScope lock(&crit_sect_);
- return config_;
- }
-
- void BlockNextEncode() {
- rtc::CritScope lock(&local_crit_sect_);
- block_next_encode_ = true;
- }
-
- VideoEncoder::ScalingSettings GetScalingSettings() const override {
- rtc::CritScope lock(&local_crit_sect_);
- if (quality_scaling_)
- return VideoEncoder::ScalingSettings(true, 1, 2);
- return VideoEncoder::ScalingSettings(false);
- }
-
- void ContinueEncode() { continue_encode_event_.Set(); }
-
- void CheckLastTimeStampsMatch(int64_t ntp_time_ms,
- uint32_t timestamp) const {
- rtc::CritScope lock(&local_crit_sect_);
- EXPECT_EQ(timestamp_, timestamp);
- EXPECT_EQ(ntp_time_ms_, ntp_time_ms);
- }
-
- void SetQualityScaling(bool b) {
- rtc::CritScope lock(&local_crit_sect_);
- quality_scaling_ = b;
- }
-
- void ForceInitEncodeFailure(bool force_failure) {
- rtc::CritScope lock(&local_crit_sect_);
- force_init_encode_failed_ = force_failure;
- }
-
- private:
- int32_t Encode(const VideoFrame& input_image,
- const CodecSpecificInfo* codec_specific_info,
- const std::vector<FrameType>* frame_types) override {
- bool block_encode;
- {
- rtc::CritScope lock(&local_crit_sect_);
- 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;
- }
- int32_t result =
- FakeEncoder::Encode(input_image, codec_specific_info, frame_types);
- if (block_encode)
- EXPECT_TRUE(continue_encode_event_.Wait(kDefaultTimeoutMs));
- return result;
- }
-
- int32_t InitEncode(const VideoCodec* config,
- int32_t number_of_cores,
- size_t max_payload_size) override {
- int res =
- FakeEncoder::InitEncode(config, number_of_cores, max_payload_size);
- rtc::CritScope lock(&local_crit_sect_);
- if (config->codecType == kVideoCodecVP8 && config->VP8().tl_factory) {
- // Simulate setting up temporal layers, in order to validate the life
- // cycle of these objects.
- int num_streams = std::max<int>(1, config->numberOfSimulcastStreams);
- int num_temporal_layers =
- std::max<int>(1, config->VP8().numberOfTemporalLayers);
- for (int i = 0; i < num_streams; ++i) {
- allocated_temporal_layers_.emplace_back(
- config->VP8().tl_factory->Create(i, num_temporal_layers, 42));
- }
- }
- if (force_init_encode_failed_)
- return -1;
- return res;
- }
-
- rtc::CriticalSection local_crit_sect_;
- bool block_next_encode_ GUARDED_BY(local_crit_sect_) = false;
- rtc::Event continue_encode_event_;
- uint32_t timestamp_ GUARDED_BY(local_crit_sect_) = 0;
- int64_t ntp_time_ms_ GUARDED_BY(local_crit_sect_) = 0;
- int last_input_width_ GUARDED_BY(local_crit_sect_) = 0;
- int last_input_height_ GUARDED_BY(local_crit_sect_) = 0;
- bool quality_scaling_ GUARDED_BY(local_crit_sect_) = true;
- std::vector<std::unique_ptr<TemporalLayers>> allocated_temporal_layers_
- GUARDED_BY(local_crit_sect_);
- bool force_init_encode_failed_ GUARDED_BY(local_crit_sect_) = false;
- };
-
- class TestSink : public ViEEncoder::EncoderSink {
- public:
- explicit TestSink(TestEncoder* test_encoder)
- : test_encoder_(test_encoder), encoded_frame_event_(false, false) {}
-
- 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;
- {
- rtc::CritScope lock(&crit_);
- 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));
- CheckLastFrameSizeMathces(expected_width, expected_height);
- }
-
- void CheckLastFrameSizeMathces(uint32_t expected_width,
- uint32_t expected_height) {
- uint32_t width = 0;
- uint32_t height = 0;
- {
- rtc::CritScope lock(&crit_);
- width = last_width_;
- height = last_height_;
- }
- EXPECT_EQ(expected_height, height);
- EXPECT_EQ(expected_width, width);
- }
-
- void ExpectDroppedFrame() { EXPECT_FALSE(encoded_frame_event_.Wait(100)); }
-
- bool WaitForFrame(int64_t timeout_ms) {
- return encoded_frame_event_.Wait(timeout_ms);
- }
-
- void SetExpectNoFrames() {
- rtc::CritScope lock(&crit_);
- expect_frames_ = false;
- }
-
- int number_of_reconfigurations() const {
- rtc::CritScope lock(&crit_);
- return number_of_reconfigurations_;
- }
-
- int last_min_transmit_bitrate() const {
- rtc::CritScope lock(&crit_);
- return min_transmit_bitrate_bps_;
- }
-
- private:
- Result OnEncodedImage(
- const EncodedImage& encoded_image,
- const CodecSpecificInfo* codec_specific_info,
- const RTPFragmentationHeader* fragmentation) override {
- rtc::CritScope lock(&crit_);
- EXPECT_TRUE(expect_frames_);
- last_timestamp_ = encoded_image._timeStamp;
- last_width_ = encoded_image._encodedWidth;
- last_height_ = encoded_image._encodedHeight;
- encoded_frame_event_.Set();
- return Result(Result::OK, last_timestamp_);
- }
-
- void OnEncoderConfigurationChanged(std::vector<VideoStream> streams,
- int min_transmit_bitrate_bps) override {
- rtc::CriticalSection crit_;
- ++number_of_reconfigurations_;
- min_transmit_bitrate_bps_ = min_transmit_bitrate_bps;
- }
-
- rtc::CriticalSection crit_;
- TestEncoder* test_encoder_;
- rtc::Event encoded_frame_event_;
- uint32_t last_timestamp_ = 0;
- uint32_t last_height_ = 0;
- uint32_t last_width_ = 0;
- bool expect_frames_ = true;
- int number_of_reconfigurations_ = 0;
- int min_transmit_bitrate_bps_ = 0;
- };
-
- VideoSendStream::Config video_send_config_;
- VideoEncoderConfig video_encoder_config_;
- int codec_width_;
- int codec_height_;
- int max_framerate_;
- TestEncoder fake_encoder_;
- std::unique_ptr<MockableSendStatisticsProxy> stats_proxy_;
- TestSink sink_;
- AdaptingFrameForwarder video_source_;
- std::unique_ptr<ViEEncoderUnderTest> vie_encoder_;
- rtc::ScopedFakeClock fake_clock_;
-};
-
-TEST_F(ViEEncoderTest, EncodeOneFrame) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- rtc::Event frame_destroyed_event(false, false);
- video_source_.IncomingCapturedFrame(CreateFrame(1, &frame_destroyed_event));
- WaitForEncodedFrame(1);
- EXPECT_TRUE(frame_destroyed_event.Wait(kDefaultTimeoutMs));
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, DropsFramesBeforeFirstOnBitrateUpdated) {
- // Dropped since no target bitrate has been set.
- rtc::Event frame_destroyed_event(false, false);
- video_source_.IncomingCapturedFrame(CreateFrame(1, &frame_destroyed_event));
- EXPECT_TRUE(frame_destroyed_event.Wait(kDefaultTimeoutMs));
-
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr));
- WaitForEncodedFrame(2);
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, DropsFramesWhenRateSetToZero) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr));
- WaitForEncodedFrame(1);
-
- vie_encoder_->OnBitrateUpdated(0, 0, 0);
- // Dropped since bitrate is zero.
- video_source_.IncomingCapturedFrame(CreateFrame(2, nullptr));
-
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- video_source_.IncomingCapturedFrame(CreateFrame(3, nullptr));
- WaitForEncodedFrame(3);
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, DropsFramesWithSameOrOldNtpTimestamp) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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);
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, DropsFrameAfterStop) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- video_source_.IncomingCapturedFrame(CreateFrame(1, nullptr));
- WaitForEncodedFrame(1);
-
- vie_encoder_->Stop();
- sink_.SetExpectNoFrames();
- rtc::Event frame_destroyed_event(false, false);
- video_source_.IncomingCapturedFrame(CreateFrame(2, &frame_destroyed_event));
- EXPECT_TRUE(frame_destroyed_event.Wait(kDefaultTimeoutMs));
-}
-
-TEST_F(ViEEncoderTest, DropsPendingFramesOnSlowEncode) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, ConfigureEncoderTriggersOnEncoderConfigurationChanged) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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(1, &video_encoder_config);
- video_encoder_config.min_transmit_bitrate_bps = 9999;
- vie_encoder_->ConfigureEncoder(std::move(video_encoder_config),
- kMaxPayloadLength, true /* nack_enabled */);
-
- // 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());
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, FrameResolutionChangeReconfigureEncoder) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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());
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, Vp8ResilienceIsOffFor1S1TLWithNackEnabled) {
- const bool kNackEnabled = true;
- const size_t kNumStreams = 1;
- const size_t kNumTl = 1;
- ResetEncoder("VP8", kNumStreams, kNumTl, kNackEnabled, false);
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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 have been configured once when the first frame is received.
- EXPECT_EQ(1, sink_.number_of_reconfigurations());
- EXPECT_EQ(kVideoCodecVP8, fake_encoder_.codec_config().codecType);
- EXPECT_EQ(kNumStreams, fake_encoder_.codec_config().numberOfSimulcastStreams);
- EXPECT_EQ(kNumTl, fake_encoder_.codec_config().VP8()->numberOfTemporalLayers);
- // Resilience is off for no temporal layers with nack on.
- EXPECT_EQ(kResilienceOff, fake_encoder_.codec_config().VP8()->resilience);
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, Vp8ResilienceIsOffFor2S1TlWithNackEnabled) {
- const bool kNackEnabled = true;
- const size_t kNumStreams = 2;
- const size_t kNumTl = 1;
- ResetEncoder("VP8", kNumStreams, kNumTl, kNackEnabled, false);
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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 have been configured once when the first frame is received.
- EXPECT_EQ(1, sink_.number_of_reconfigurations());
- EXPECT_EQ(kVideoCodecVP8, fake_encoder_.codec_config().codecType);
- EXPECT_EQ(kNumStreams, fake_encoder_.codec_config().numberOfSimulcastStreams);
- EXPECT_EQ(kNumTl, fake_encoder_.codec_config().VP8()->numberOfTemporalLayers);
- // Resilience is off for no temporal layers and >1 streams with nack on.
- EXPECT_EQ(kResilienceOff, fake_encoder_.codec_config().VP8()->resilience);
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, Vp8ResilienceIsOnFor1S1TLWithNackDisabled) {
- const bool kNackEnabled = false;
- const size_t kNumStreams = 1;
- const size_t kNumTl = 1;
- ResetEncoder("VP8", kNumStreams, kNumTl, kNackEnabled, false);
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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 have been configured once when the first frame is received.
- EXPECT_EQ(1, sink_.number_of_reconfigurations());
- EXPECT_EQ(kVideoCodecVP8, fake_encoder_.codec_config().codecType);
- EXPECT_EQ(kNumStreams, fake_encoder_.codec_config().numberOfSimulcastStreams);
- EXPECT_EQ(kNumTl, fake_encoder_.codec_config().VP8()->numberOfTemporalLayers);
- // Resilience is on for no temporal layers with nack off.
- EXPECT_EQ(kResilientStream, fake_encoder_.codec_config().VP8()->resilience);
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, Vp8ResilienceIsOnFor1S2TlWithNackEnabled) {
- const bool kNackEnabled = true;
- const size_t kNumStreams = 1;
- const size_t kNumTl = 2;
- ResetEncoder("VP8", kNumStreams, kNumTl, kNackEnabled, false);
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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 have been configured once when the first frame is received.
- EXPECT_EQ(1, sink_.number_of_reconfigurations());
- EXPECT_EQ(kVideoCodecVP8, fake_encoder_.codec_config().codecType);
- EXPECT_EQ(kNumStreams, fake_encoder_.codec_config().numberOfSimulcastStreams);
- EXPECT_EQ(kNumTl, fake_encoder_.codec_config().VP8()->numberOfTemporalLayers);
- // Resilience is on for temporal layers.
- EXPECT_EQ(kResilientStream, fake_encoder_.codec_config().VP8()->resilience);
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, SwitchSourceDeregisterEncoderAsSink) {
- EXPECT_TRUE(video_source_.has_sinks());
- test::FrameForwarder new_video_source;
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kMaintainFramerate);
- EXPECT_FALSE(video_source_.has_sinks());
- EXPECT_TRUE(new_video_source.has_sinks());
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, SinkWantsRotationApplied) {
- EXPECT_FALSE(video_source_.sink_wants().rotation_applied);
- vie_encoder_->SetSink(&sink_, true /*rotation_applied*/);
- EXPECT_TRUE(video_source_.sink_wants().rotation_applied);
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, SinkWantsFromOveruseDetector) {
- const int kMaxDowngrades = ViEEncoder::kMaxCpuResolutionDowngrades;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- VerifyNoLimitation(video_source_.sink_wants());
-
- int frame_width = 1280;
- int frame_height = 720;
-
- // Trigger CPU overuse kMaxCpuDowngrades times. Every time, ViEEncoder should
- // request lower resolution.
- for (int i = 1; i <= kMaxDowngrades; ++i) {
- video_source_.IncomingCapturedFrame(
- CreateFrame(i, frame_width, frame_height));
- WaitForEncodedFrame(i);
-
- vie_encoder_->TriggerCpuOveruse();
-
- EXPECT_FALSE(video_source_.sink_wants().target_pixel_count);
- EXPECT_LT(video_source_.sink_wants().max_pixel_count,
- frame_width * frame_height);
- EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution);
- EXPECT_EQ(i, stats_proxy_->GetStats().number_of_cpu_adapt_changes);
-
- frame_width /= 2;
- frame_height /= 2;
- }
-
- // Trigger CPU overuse one more time. This should not trigger a request for
- // lower resolution.
- rtc::VideoSinkWants current_wants = video_source_.sink_wants();
- video_source_.IncomingCapturedFrame(
- CreateFrame(kMaxDowngrades + 1, frame_width, frame_height));
- WaitForEncodedFrame(kMaxDowngrades + 1);
- vie_encoder_->TriggerCpuOveruse();
- EXPECT_EQ(video_source_.sink_wants().target_pixel_count,
- current_wants.target_pixel_count);
- EXPECT_EQ(video_source_.sink_wants().max_pixel_count,
- current_wants.max_pixel_count);
- EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution);
- EXPECT_EQ(kMaxDowngrades,
- stats_proxy_->GetStats().number_of_cpu_adapt_changes);
-
- // Trigger CPU normal use.
- vie_encoder_->TriggerCpuNormalUsage();
- EXPECT_EQ(frame_width * frame_height * 5 / 3,
- video_source_.sink_wants().target_pixel_count.value_or(0));
- EXPECT_EQ(frame_width * frame_height * 4,
- video_source_.sink_wants().max_pixel_count);
- EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution);
- EXPECT_EQ(kMaxDowngrades + 1,
- stats_proxy_->GetStats().number_of_cpu_adapt_changes);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, TestMaxCpuResolutionDowngrades_BalancedMode_NoFpsLimit) {
- const int kMaxDowngrades = ViEEncoder::kMaxCpuResolutionDowngrades;
- const int kWidth = 1280;
- const int kHeight = 720;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kBalanced preference, no initial limitation.
- AdaptingFrameForwarder source;
- source.set_adaptation_enabled(true);
- vie_encoder_->SetSource(&source,
- VideoSendStream::DegradationPreference::kBalanced);
- VerifyNoLimitation(source.sink_wants());
- EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution);
- EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes);
-
- // Trigger adapt down kMaxCpuDowngrades times.
- int t = 1;
- for (int i = 1; i <= kMaxDowngrades; ++i) {
- source.IncomingCapturedFrame(CreateFrame(t, kWidth, kHeight));
- sink_.WaitForEncodedFrame(t++);
- vie_encoder_->TriggerCpuOveruse();
- VerifyFpsMaxResolutionLt(source.sink_wants(), source.last_wants());
- EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution);
- EXPECT_EQ(i, stats_proxy_->GetStats().number_of_cpu_adapt_changes);
- }
-
- // Trigger adapt down, max cpu downgrades reach, expect no change.
- rtc::VideoSinkWants last_wants = source.sink_wants();
- source.IncomingCapturedFrame(CreateFrame(t, kWidth, kHeight));
- sink_.WaitForEncodedFrame(t++);
- vie_encoder_->TriggerCpuOveruse();
- VerifyFpsEqResolutionEq(source.sink_wants(), last_wants);
- EXPECT_EQ(last_wants.max_pixel_count, source.sink_wants().max_pixel_count);
- EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution);
- EXPECT_EQ(kMaxDowngrades,
- stats_proxy_->GetStats().number_of_cpu_adapt_changes);
-
- // Trigger adapt up kMaxCpuDowngrades times.
- for (int i = 1; i <= kMaxDowngrades; ++i) {
- source.IncomingCapturedFrame(CreateFrame(t, kWidth, kHeight));
- sink_.WaitForEncodedFrame(t++);
- vie_encoder_->TriggerCpuNormalUsage();
- VerifyFpsMaxResolutionGt(source.sink_wants(), source.last_wants());
- EXPECT_GT(source.sink_wants().max_pixel_count, last_wants.max_pixel_count);
- EXPECT_EQ(kMaxDowngrades + i,
- stats_proxy_->GetStats().number_of_cpu_adapt_changes);
- }
-
- VerifyNoLimitation(source.sink_wants());
- EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution);
-
- vie_encoder_->Stop();
-}
-TEST_F(ViEEncoderTest, SinkWantsStoredByDegradationPreference) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- VerifyNoLimitation(video_source_.sink_wants());
-
- const int kFrameWidth = 1280;
- const int kFrameHeight = 720;
- const int kFrameIntervalMs = 1000 / 30;
-
- int frame_timestamp = 1;
-
- video_source_.IncomingCapturedFrame(
- CreateFrame(frame_timestamp, kFrameWidth, kFrameHeight));
- WaitForEncodedFrame(frame_timestamp);
- frame_timestamp += kFrameIntervalMs;
-
- // Trigger CPU overuse.
- vie_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(std::numeric_limits<int>::max(),
- video_source_.sink_wants().max_framerate_fps);
-
- // Set new source, switch to maintain-resolution.
- test::FrameForwarder new_video_source;
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kMaintainResolution);
-
- // Initially no degradation registered.
- VerifyNoLimitation(new_video_source.sink_wants());
-
- // 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);
-
- vie_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.
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kDegradationDisabled);
- VerifyNoLimitation(new_video_source.sink_wants());
-
- vie_encoder_->TriggerCpuOveruse();
- new_video_source.IncomingCapturedFrame(
- CreateFrame(frame_timestamp, kFrameWidth, kFrameHeight));
- WaitForEncodedFrame(frame_timestamp);
- frame_timestamp += kFrameIntervalMs;
-
- // Still no degradation.
- VerifyNoLimitation(new_video_source.sink_wants());
-
- // Calling SetSource with resolution scaling enabled apply the old SinkWants.
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kMaintainFramerate);
- EXPECT_LT(new_video_source.sink_wants().max_pixel_count,
- kFrameWidth * kFrameHeight);
- EXPECT_FALSE(new_video_source.sink_wants().target_pixel_count);
- EXPECT_EQ(std::numeric_limits<int>::max(),
- new_video_source.sink_wants().max_framerate_fps);
-
- // Calling SetSource with framerate scaling enabled apply the old SinkWants.
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kMaintainResolution);
- 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, StatsTracksQualityAdaptationStats) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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.
- vie_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.
- vie_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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, StatsTracksCpuAdaptationStats) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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.
- vie_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.
- vie_encoder_->TriggerCpuNormalUsage();
- 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, SwitchingSourceKeepsCpuAdaptation) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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.
- vie_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;
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kMaintainFramerate);
-
- 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.
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kDegradationDisabled);
-
- 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.
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kMaintainFramerate);
-
- 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.
- vie_encoder_->TriggerCpuNormalUsage();
- 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, SwitchingSourceKeepsQualityAdaptation) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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;
- vie_encoder_->SetSource(&new_video_source,
- VideoSendStream::DegradationPreference::kBalanced);
-
- 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.
- vie_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.
- vie_encoder_->SetSource(&new_video_source,
- VideoSendStream::DegradationPreference::kBalanced);
-
- 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.
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kMaintainResolution);
-
- 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, QualityAdaptationStatsAreResetWhenScalerIsDisabled) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- const int kWidth = 1280;
- const int kHeight = 720;
- video_source_.set_adaptation_enabled(true);
- video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- WaitForEncodedFrame(1);
- 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.
- vie_encoder_->TriggerQualityLow();
- video_source_.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight));
- WaitForEncodedFrame(2);
- 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.
- vie_encoder_->TriggerCpuOveruse();
- video_source_.IncomingCapturedFrame(CreateFrame(3, kWidth, kHeight));
- WaitForEncodedFrame(3);
- 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);
-
- // Set source with adaptation still enabled but quality scaler is off.
- fake_encoder_.SetQualityScaling(false);
- vie_encoder_->SetSource(
- &video_source_,
- VideoSendStream::DegradationPreference::kMaintainFramerate);
-
- video_source_.IncomingCapturedFrame(CreateFrame(4, kWidth, kHeight));
- WaitForEncodedFrame(4);
- 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, StatsTracksCpuAdaptationStatsWhenSwitchingSource) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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.
- vie_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;
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kMaintainFramerate);
-
- 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.
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kMaintainResolution);
- 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);
- vie_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.
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kDegradationDisabled);
- 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);
- vie_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.
- vie_encoder_->SetSource(
- &video_source_,
- VideoSendStream::DegradationPreference::kMaintainFramerate);
- 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.
- vie_encoder_->TriggerCpuNormalUsage();
- 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.
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kMaintainResolution);
- 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.
- vie_encoder_->TriggerCpuNormalUsage();
- 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, StatsTracksPreferredBitrate) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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_EQ(video_encoder_config_.max_bitrate_bps,
- stats.preferred_media_bitrate_bps);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, ScalingUpAndDownDoesNothingWithMaintainResolution) {
- const int kWidth = 1280;
- const int kHeight = 720;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Expect no scaling to begin with.
- VerifyNoLimitation(video_source_.sink_wants());
-
- video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- WaitForEncodedFrame(1);
-
- // Trigger scale down.
- vie_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;
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kMaintainResolution);
-
- // Trigger scale down.
- vie_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.
- vie_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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, SkipsSameAdaptDownRequest_MaintainFramerateMode) {
- const int kWidth = 1280;
- const int kHeight = 720;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kMaintainFramerate preference, no initial limitation.
- test::FrameForwarder source;
- vie_encoder_->SetSource(
- &source, VideoSendStream::DegradationPreference::kMaintainFramerate);
-
- source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- WaitForEncodedFrame(1);
- VerifyNoLimitation(source.sink_wants());
- 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.
- vie_encoder_->TriggerCpuOveruse();
- VerifyFpsMaxResolutionLt(source.sink_wants(), 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.
- vie_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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, SkipsSameOrLargerAdaptDownRequest_BalancedMode) {
- const int kWidth = 1280;
- const int kHeight = 720;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kBalanced preference, no initial limitation.
- test::FrameForwarder source;
- vie_encoder_->SetSource(&source,
- VideoSendStream::DegradationPreference::kBalanced);
- source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- sink_.WaitForEncodedFrame(1);
- VerifyNoLimitation(source.sink_wants());
-
- // Trigger adapt down, expect scaled down resolution.
- vie_encoder_->TriggerQualityLow();
- VerifyFpsMaxResolutionLt(source.sink_wants(), 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);
- vie_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);
- vie_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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, NoChangeForInitialNormalUsage_MaintainFramerateMode) {
- const int kWidth = 1280;
- const int kHeight = 720;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kMaintainFramerate preference, no initial limitation.
- test::FrameForwarder source;
- vie_encoder_->SetSource(
- &source, VideoSendStream::DegradationPreference::kMaintainFramerate);
-
- source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- 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.
- vie_encoder_->TriggerCpuNormalUsage();
- VerifyNoLimitation(source.sink_wants());
- EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution);
- EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, NoChangeForInitialNormalUsage_MaintainResolutionMode) {
- const int kWidth = 1280;
- const int kHeight = 720;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kMaintainResolution preference, no initial limitation.
- test::FrameForwarder source;
- vie_encoder_->SetSource(
- &source, VideoSendStream::DegradationPreference::kMaintainResolution);
-
- source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- 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.
- vie_encoder_->TriggerCpuNormalUsage();
- VerifyNoLimitation(source.sink_wants());
- EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_framerate);
- EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, NoChangeForInitialNormalUsage_BalancedMode) {
- const int kWidth = 1280;
- const int kHeight = 720;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kBalanced preference, no initial limitation.
- test::FrameForwarder source;
- vie_encoder_->SetSource(&source,
- VideoSendStream::DegradationPreference::kBalanced);
-
- source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- sink_.WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- 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.
- vie_encoder_->TriggerQualityHigh();
- VerifyNoLimitation(source.sink_wants());
- 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, NoChangeForInitialNormalUsage_DisabledMode) {
- const int kWidth = 1280;
- const int kHeight = 720;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kDegradationDisabled preference, no initial limitation.
- test::FrameForwarder source;
- vie_encoder_->SetSource(
- &source, VideoSendStream::DegradationPreference::kDegradationDisabled);
-
- source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- sink_.WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- 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.
- vie_encoder_->TriggerQualityHigh();
- VerifyNoLimitation(source.sink_wants());
- 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, AdaptsResolutionForLowQuality_MaintainFramerateMode) {
- const int kWidth = 1280;
- const int kHeight = 720;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kMaintainFramerate preference, no initial limitation.
- AdaptingFrameForwarder source;
- source.set_adaptation_enabled(true);
- vie_encoder_->SetSource(
- &source, VideoSendStream::DegradationPreference::kMaintainFramerate);
-
- source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- WaitForEncodedFrame(1);
- VerifyNoLimitation(source.sink_wants());
- 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.
- vie_encoder_->TriggerQualityLow();
- source.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight));
- WaitForEncodedFrame(2);
- VerifyFpsMaxResolutionLt(source.sink_wants(), 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.
- vie_encoder_->TriggerQualityHigh();
- VerifyNoLimitation(source.sink_wants());
- 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, AdaptsFramerateForLowQuality_MaintainResolutionMode) {
- const int kWidth = 1280;
- const int kHeight = 720;
- const int kInputFps = 30;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- VideoSendStream::Stats stats = stats_proxy_->GetStats();
- stats.input_frame_rate = kInputFps;
- stats_proxy_->SetMockStats(stats);
-
- // Expect no scaling to begin with (preference: kMaintainFramerate).
- video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- sink_.WaitForEncodedFrame(1);
- VerifyNoLimitation(video_source_.sink_wants());
-
- // Trigger adapt down, expect scaled down resolution.
- vie_encoder_->TriggerQualityLow();
- video_source_.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight));
- sink_.WaitForEncodedFrame(2);
- VerifyFpsMaxResolutionLt(video_source_.sink_wants(), kWidth * kHeight);
-
- // Enable kMaintainResolution preference.
- test::FrameForwarder new_video_source;
- vie_encoder_->SetSource(
- &new_video_source,
- VideoSendStream::DegradationPreference::kMaintainResolution);
- VerifyNoLimitation(new_video_source.sink_wants());
-
- // Trigger adapt down, expect reduced framerate.
- vie_encoder_->TriggerQualityLow();
- new_video_source.IncomingCapturedFrame(CreateFrame(3, kWidth, kHeight));
- sink_.WaitForEncodedFrame(3);
- VerifyFpsLtResolutionMax(new_video_source.sink_wants(), kInputFps);
-
- // Trigger adapt up, expect no restriction.
- vie_encoder_->TriggerQualityHigh();
- VerifyNoLimitation(new_video_source.sink_wants());
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, DoesNotScaleBelowSetResolutionLimit) {
- const int kWidth = 1280;
- const int kHeight = 720;
- const size_t kNumFrames = 10;
-
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable adapter, expected input resolutions when downscaling:
- // 1280x720 -> 960x540 -> 640x360 -> 480x270 -> 320x180 (min resolution limit)
- 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, kWidth, kHeight));
- WaitForEncodedFrame(i);
-
- // Trigger scale down.
- rtc::VideoSinkWants last_wants = video_source_.sink_wants();
- vie_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);
- }
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest,
- AdaptsResolutionUpAndDownTwiceOnOveruse_MaintainFramerateMode) {
- const int kWidth = 1280;
- const int kHeight = 720;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kMaintainFramerate preference, no initial limitation.
- AdaptingFrameForwarder source;
- source.set_adaptation_enabled(true);
- vie_encoder_->SetSource(
- &source, VideoSendStream::DegradationPreference::kMaintainFramerate);
-
- source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- 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.
- vie_encoder_->TriggerCpuOveruse();
- source.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight));
- WaitForEncodedFrame(2);
- VerifyFpsMaxResolutionLt(source.sink_wants(), 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.
- vie_encoder_->TriggerCpuNormalUsage();
- source.IncomingCapturedFrame(CreateFrame(3, kWidth, kHeight));
- WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- 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.
- vie_encoder_->TriggerCpuOveruse();
- source.IncomingCapturedFrame(CreateFrame(4, kWidth, kHeight));
- WaitForEncodedFrame(4);
- VerifyFpsMaxResolutionLt(source.sink_wants(), 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.
- vie_encoder_->TriggerCpuNormalUsage();
- source.IncomingCapturedFrame(CreateFrame(5, kWidth, kHeight));
- sink_.WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution);
- EXPECT_EQ(4, stats_proxy_->GetStats().number_of_cpu_adapt_changes);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest,
- AdaptsResolutionUpAndDownTwiceForLowQuality_BalancedMode_NoFpsLimit) {
- const int kWidth = 1280;
- const int kHeight = 720;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kBalanced preference, no initial limitation.
- AdaptingFrameForwarder source;
- source.set_adaptation_enabled(true);
- vie_encoder_->SetSource(&source,
- VideoSendStream::DegradationPreference::kBalanced);
-
- source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- sink_.WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- 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.
- vie_encoder_->TriggerQualityLow();
- source.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight));
- sink_.WaitForEncodedFrame(2);
- VerifyFpsMaxResolutionLt(source.sink_wants(), 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.
- vie_encoder_->TriggerQualityHigh();
- source.IncomingCapturedFrame(CreateFrame(3, kWidth, kHeight));
- sink_.WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- 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.
- vie_encoder_->TriggerQualityLow();
- source.IncomingCapturedFrame(CreateFrame(4, kWidth, kHeight));
- sink_.WaitForEncodedFrame(4);
- VerifyFpsMaxResolutionLt(source.sink_wants(), 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.
- vie_encoder_->TriggerQualityHigh();
- source.IncomingCapturedFrame(CreateFrame(5, kWidth, kHeight));
- sink_.WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution);
- EXPECT_EQ(4, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest,
- AdaptsResolutionOnOveruseAndLowQuality_MaintainFramerateMode) {
- const int kWidth = 1280;
- const int kHeight = 720;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kMaintainFramerate preference, no initial limitation.
- AdaptingFrameForwarder source;
- source.set_adaptation_enabled(true);
- vie_encoder_->SetSource(
- &source, VideoSendStream::DegradationPreference::kMaintainFramerate);
-
- source.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- 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).
- vie_encoder_->TriggerCpuOveruse();
- source.IncomingCapturedFrame(CreateFrame(2, kWidth, kHeight));
- WaitForEncodedFrame(2);
- VerifyFpsMaxResolutionLt(source.sink_wants(), 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).
- vie_encoder_->TriggerCpuOveruse();
- source.IncomingCapturedFrame(CreateFrame(3, kWidth, kHeight));
- WaitForEncodedFrame(3);
- VerifyFpsMaxResolutionLt(source.sink_wants(), source.last_wants());
- rtc::VideoSinkWants last_wants = source.sink_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, max cpu downgrades reached, expect no change.
- vie_encoder_->TriggerCpuOveruse();
- source.IncomingCapturedFrame(CreateFrame(4, kWidth, kHeight));
- WaitForEncodedFrame(4);
- VerifyFpsEqResolutionEq(source.sink_wants(), 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 quality adapt down, expect scaled down resolution (480x270).
- vie_encoder_->TriggerQualityLow();
- source.IncomingCapturedFrame(CreateFrame(5, kWidth, kHeight));
- WaitForEncodedFrame(5);
- VerifyFpsMaxResolutionLt(source.sink_wants(), source.last_wants());
- EXPECT_TRUE(stats_proxy_->GetStats().cpu_limited_resolution);
- EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution);
- 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 upscaled resolution (640x360).
- vie_encoder_->TriggerCpuNormalUsage();
- source.IncomingCapturedFrame(CreateFrame(6, kWidth, kHeight));
- WaitForEncodedFrame(6);
- VerifyFpsMaxResolutionGt(source.sink_wants(), 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(1, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- // Trigger cpu adapt up, expect upscaled resolution (960x540).
- vie_encoder_->TriggerCpuNormalUsage();
- source.IncomingCapturedFrame(CreateFrame(7, kWidth, kHeight));
- WaitForEncodedFrame(7);
- VerifyFpsMaxResolutionGt(source.sink_wants(), source.last_wants());
- last_wants = source.sink_wants();
- EXPECT_FALSE(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(1, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- // Trigger cpu adapt up, no cpu downgrades, expect no change (960x540).
- vie_encoder_->TriggerCpuNormalUsage();
- source.IncomingCapturedFrame(CreateFrame(8, kWidth, kHeight));
- WaitForEncodedFrame(8);
- VerifyFpsEqResolutionEq(source.sink_wants(), last_wants);
- EXPECT_FALSE(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(1, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- // Trigger quality adapt up, expect no restriction (1280x720).
- vie_encoder_->TriggerQualityHigh();
- source.IncomingCapturedFrame(CreateFrame(9, kWidth, kHeight));
- WaitForEncodedFrame(kWidth, kHeight);
- VerifyFpsMaxResolutionGt(source.sink_wants(), source.last_wants());
- VerifyNoLimitation(source.sink_wants());
- EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution);
- EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution);
- EXPECT_EQ(4, stats_proxy_->GetStats().number_of_cpu_adapt_changes);
- EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, CpuLimitedHistogramIsReported) {
- const int kWidth = 640;
- const int kHeight = 360;
-
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- for (int i = 1; i <= SendStatisticsProxy::kMinRequiredMetricsSamples; ++i) {
- video_source_.IncomingCapturedFrame(CreateFrame(i, kWidth, kHeight));
- WaitForEncodedFrame(i);
- }
-
- vie_encoder_->TriggerCpuOveruse();
- for (int i = 1; i <= SendStatisticsProxy::kMinRequiredMetricsSamples; ++i) {
- video_source_.IncomingCapturedFrame(CreateFrame(
- SendStatisticsProxy::kMinRequiredMetricsSamples + i, kWidth, kHeight));
- WaitForEncodedFrame(SendStatisticsProxy::kMinRequiredMetricsSamples + i);
- }
-
- vie_encoder_->Stop();
- vie_encoder_.reset();
- stats_proxy_.reset();
-
- EXPECT_EQ(1,
- metrics::NumSamples("WebRTC.Video.CpuLimitedResolutionInPercent"));
- EXPECT_EQ(
- 1, metrics::NumEvents("WebRTC.Video.CpuLimitedResolutionInPercent", 50));
-}
-
-TEST_F(ViEEncoderTest, CpuLimitedHistogramIsNotReportedForDisabledDegradation) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- const int kWidth = 640;
- const int kHeight = 360;
-
- vie_encoder_->SetSource(
- &video_source_,
- VideoSendStream::DegradationPreference::kDegradationDisabled);
-
- for (int i = 1; i <= SendStatisticsProxy::kMinRequiredMetricsSamples; ++i) {
- video_source_.IncomingCapturedFrame(CreateFrame(i, kWidth, kHeight));
- WaitForEncodedFrame(i);
- }
-
- vie_encoder_->Stop();
- vie_encoder_.reset();
- stats_proxy_.reset();
-
- EXPECT_EQ(0,
- metrics::NumSamples("WebRTC.Video.CpuLimitedResolutionInPercent"));
-}
-
-TEST_F(ViEEncoderTest, CallsBitrateObserver) {
- MockBitrateObserver bitrate_observer;
- vie_encoder_->SetBitrateObserver(&bitrate_observer);
-
- const int kDefaultFps = 30;
- const BitrateAllocation expected_bitrate =
- DefaultVideoBitrateAllocator(fake_encoder_.codec_config())
- .GetAllocation(kLowTargetBitrateBps, kDefaultFps);
-
- // First called on bitrate updated, then again on first frame.
- EXPECT_CALL(bitrate_observer, OnBitrateAllocationUpdated(expected_bitrate))
- .Times(2);
- vie_encoder_->OnBitrateUpdated(kLowTargetBitrateBps, 0, 0);
-
- const int64_t kStartTimeMs = 1;
- video_source_.IncomingCapturedFrame(
- CreateFrame(kStartTimeMs, codec_width_, codec_height_));
- WaitForEncodedFrame(kStartTimeMs);
-
- // Not called on second frame.
- EXPECT_CALL(bitrate_observer, OnBitrateAllocationUpdated(expected_bitrate))
- .Times(0);
- video_source_.IncomingCapturedFrame(
- CreateFrame(kStartTimeMs + 1, codec_width_, codec_height_));
- WaitForEncodedFrame(kStartTimeMs + 1);
-
- // Called after a process interval.
- const int64_t kProcessIntervalMs =
- vcm::VCMProcessTimer::kDefaultProcessIntervalMs;
- fake_clock_.AdvanceTimeMicros(rtc::kNumMicrosecsPerMillisec *
- (kProcessIntervalMs + (1000 / kDefaultFps)));
- EXPECT_CALL(bitrate_observer, OnBitrateAllocationUpdated(expected_bitrate))
- .Times(1);
- video_source_.IncomingCapturedFrame(CreateFrame(
- kStartTimeMs + kProcessIntervalMs, codec_width_, codec_height_));
- WaitForEncodedFrame(kStartTimeMs + kProcessIntervalMs);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, OveruseDetectorUpdatedOnReconfigureAndAdaption) {
- const int kFrameWidth = 1280;
- const int kFrameHeight = 720;
- const int kFramerate = 24;
-
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- test::FrameForwarder source;
- vie_encoder_->SetSource(
- &source, VideoSendStream::DegradationPreference::kMaintainResolution);
-
- // Insert a single frame, triggering initial configuration.
- source.IncomingCapturedFrame(CreateFrame(1, kFrameWidth, kFrameHeight));
- vie_encoder_->WaitUntilTaskQueueIsIdle();
-
- EXPECT_EQ(vie_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(),
- kDefaultFramerate);
-
- // Trigger reconfigure encoder (without resetting the entire instance).
- VideoEncoderConfig video_encoder_config;
- 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);
- vie_encoder_->ConfigureEncoder(std::move(video_encoder_config),
- kMaxPayloadLength, false);
- vie_encoder_->WaitUntilTaskQueueIsIdle();
-
- // Detector should be updated with fps limit from codec config.
- EXPECT_EQ(vie_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);
- vie_encoder_->TriggerCpuOveruse();
- vie_encoder_->WaitUntilTaskQueueIsIdle();
- int adapted_framerate =
- vie_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);
- vie_encoder_->TriggerCpuNormalUsage();
- vie_encoder_->WaitUntilTaskQueueIsIdle();
- EXPECT_EQ(vie_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(),
- kFramerate);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, OveruseDetectorUpdatedRespectsFramerateAfterUnderuse) {
- const int kFrameWidth = 1280;
- const int kFrameHeight = 720;
- const int kLowFramerate = 15;
- const int kHighFramerate = 25;
-
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- test::FrameForwarder source;
- vie_encoder_->SetSource(
- &source, VideoSendStream::DegradationPreference::kMaintainResolution);
-
- // Trigger initial configuration.
- VideoEncoderConfig video_encoder_config;
- 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));
- vie_encoder_->ConfigureEncoder(std::move(video_encoder_config),
- kMaxPayloadLength, false);
- vie_encoder_->WaitUntilTaskQueueIsIdle();
-
- EXPECT_EQ(vie_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);
- vie_encoder_->TriggerCpuOveruse();
- vie_encoder_->WaitUntilTaskQueueIsIdle();
- int adapted_framerate =
- vie_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));
- vie_encoder_->ConfigureEncoder(std::move(video_encoder_config),
- kMaxPayloadLength, false);
- vie_encoder_->WaitUntilTaskQueueIsIdle();
-
- EXPECT_EQ(vie_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);
- vie_encoder_->TriggerCpuNormalUsage();
- vie_encoder_->WaitUntilTaskQueueIsIdle();
- EXPECT_EQ(vie_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(),
- kHighFramerate);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, OveruseDetectorUpdatedOnDegradationPreferenceChange) {
- const int kFrameWidth = 1280;
- const int kFrameHeight = 720;
- const int kFramerate = 24;
-
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- test::FrameForwarder source;
- vie_encoder_->SetSource(
- &source, VideoSendStream::DegradationPreference::kMaintainResolution);
-
- // Trigger initial configuration.
- VideoEncoderConfig video_encoder_config;
- 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));
- vie_encoder_->ConfigureEncoder(std::move(video_encoder_config),
- kMaxPayloadLength, false);
- vie_encoder_->WaitUntilTaskQueueIsIdle();
-
- EXPECT_EQ(vie_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);
- vie_encoder_->TriggerCpuOveruse();
- vie_encoder_->WaitUntilTaskQueueIsIdle();
- int adapted_framerate =
- vie_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.
- vie_encoder_->SetSource(
- &source, VideoSendStream::DegradationPreference::kMaintainFramerate);
- vie_encoder_->WaitUntilTaskQueueIsIdle();
- EXPECT_EQ(vie_encoder_->overuse_detector_proxy_->GetLastTargetFramerate(),
- kFramerate);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, DropsFramesAndScalesWhenBitrateIsTooLow) {
- const int kTooLowBitrateForFrameSizeBps = 10000;
- vie_encoder_->OnBitrateUpdated(kTooLowBitrateForFrameSizeBps, 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_LT(video_source_.sink_wants().max_pixel_count, kWidth * kHeight);
-
- 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_LT(video_source_.sink_wants().max_pixel_count, last_pixel_count);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, NumberOfDroppedFramesLimitedWhenBitrateIsTooLow) {
- const int kTooLowBitrateForFrameSizeBps = 10000;
- vie_encoder_->OnBitrateUpdated(kTooLowBitrateForFrameSizeBps, 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, InitialFrameDropOffWithMaintainResolutionPreference) {
- const int kWidth = 640;
- const int kHeight = 360;
- vie_encoder_->OnBitrateUpdated(kLowTargetBitrateBps, 0, 0);
-
- // Set degradation preference.
- vie_encoder_->SetSource(
- &video_source_,
- VideoSendStream::DegradationPreference::kMaintainResolution);
-
- video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- // Frame should not be dropped, even if it's too large.
- WaitForEncodedFrame(1);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, InitialFrameDropOffWhenEncoderDisabledScaling) {
- const int kWidth = 640;
- const int kHeight = 360;
- fake_encoder_.SetQualityScaling(false);
- vie_encoder_->OnBitrateUpdated(kLowTargetBitrateBps, 0, 0);
-
- // Force quality scaler reconfiguration by resetting the source.
- vie_encoder_->SetSource(&video_source_,
- VideoSendStream::DegradationPreference::kBalanced);
-
- video_source_.IncomingCapturedFrame(CreateFrame(1, kWidth, kHeight));
- // Frame should not be dropped, even if it's too large.
- WaitForEncodedFrame(1);
-
- vie_encoder_->Stop();
- fake_encoder_.SetQualityScaling(true);
-}
-
-TEST_F(ViEEncoderTest,
- ResolutionNotAdaptedForTooSmallFrame_MaintainFramerateMode) {
- const int kTooSmallWidth = 10;
- const int kTooSmallHeight = 10;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kMaintainFramerate preference, no initial limitation.
- test::FrameForwarder source;
- vie_encoder_->SetSource(
- &source, VideoSendStream::DegradationPreference::kMaintainFramerate);
- VerifyNoLimitation(source.sink_wants());
- 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);
- vie_encoder_->TriggerCpuOveruse();
- VerifyNoLimitation(source.sink_wants());
- EXPECT_FALSE(stats_proxy_->GetStats().cpu_limited_resolution);
- EXPECT_EQ(0, stats_proxy_->GetStats().number_of_cpu_adapt_changes);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, ResolutionNotAdaptedForTooSmallFrame_BalancedMode) {
- const int kTooSmallWidth = 10;
- const int kTooSmallHeight = 10;
- const int kFpsLimit = 7;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kBalanced preference, no initial limitation.
- test::FrameForwarder source;
- vie_encoder_->SetSource(&source,
- VideoSendStream::DegradationPreference::kBalanced);
- VerifyNoLimitation(source.sink_wants());
- 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);
- vie_encoder_->TriggerQualityLow();
- VerifyFpsEqResolutionMax(source.sink_wants(), 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);
- vie_encoder_->TriggerQualityLow();
- VerifyFpsEqResolutionMax(source.sink_wants(), 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, FailingInitEncodeDoesntCauseCrash) {
- fake_encoder_.ForceInitEncodeFailure(true);
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- ResetEncoder("VP8", 2, 1, true, false);
- const int kFrameWidth = 1280;
- const int kFrameHeight = 720;
- video_source_.IncomingCapturedFrame(
- CreateFrame(1, kFrameWidth, kFrameHeight));
- ExpectDroppedFrame();
- vie_encoder_->Stop();
-}
-
-// TODO(sprang): Extend this with fps throttling and any "balanced" extensions.
-TEST_F(ViEEncoderTest, AdaptsResolutionOnOveruse_MaintainFramerateMode) {
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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 ViEEncoder::VideoSourceProxy::RequestResolutionLowerThan().
- video_source_.set_adaptation_enabled(true);
-
- video_source_.IncomingCapturedFrame(
- CreateFrame(1, kFrameWidth, kFrameHeight));
- WaitForEncodedFrame(kFrameWidth, kFrameHeight);
-
- // Trigger CPU overuse, downscale by 3/4.
- vie_encoder_->TriggerCpuOveruse();
- video_source_.IncomingCapturedFrame(
- CreateFrame(2, kFrameWidth, kFrameHeight));
- WaitForEncodedFrame((kFrameWidth * 3) / 4, (kFrameHeight * 3) / 4);
-
- // Trigger CPU normal use, return to original resolution.
- vie_encoder_->TriggerCpuNormalUsage();
- video_source_.IncomingCapturedFrame(
- CreateFrame(3, kFrameWidth, kFrameHeight));
- WaitForEncodedFrame(kFrameWidth, kFrameHeight);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, AdaptsFramerateOnOveruse_MaintainResolutionMode) {
- const int kFrameWidth = 1280;
- const int kFrameHeight = 720;
- int kFrameIntervalMs = rtc::kNumMillisecsPerSec / max_framerate_;
-
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- vie_encoder_->SetSource(
- &video_source_,
- VideoSendStream::DegradationPreference::kMaintainResolution);
- 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.
- vie_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.
- vie_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_.CheckLastFrameSizeMathces(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.
- vie_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_.CheckLastFrameSizeMathces(kFrameWidth, kFrameHeight);
- }
- }
- EXPECT_NEAR(num_frames_dropped, max_framerate_ - (max_framerate_ * 4 / 9),
- kErrorMargin);
-
- // Go back up one step.
- vie_encoder_->TriggerCpuNormalUsage();
- 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_.CheckLastFrameSizeMathces(kFrameWidth, kFrameHeight);
- }
- }
- EXPECT_NEAR(num_frames_dropped, max_framerate_ - (max_framerate_ * 2 / 3),
- kErrorMargin);
-
- // Go back up to original mode.
- vie_encoder_->TriggerCpuNormalUsage();
- 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_.CheckLastFrameSizeMathces(kFrameWidth, kFrameHeight);
- }
- }
- EXPECT_NEAR(num_frames_dropped, 0, kErrorMargin);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, DoesntAdaptDownPastMinFramerate) {
- const int kFramerateFps = 5;
- const int kFrameIntervalMs = rtc::kNumMillisecsPerSec / kFramerateFps;
- const int kMinFpsFrameInterval = rtc::kNumMillisecsPerSec / kMinFramerateFps;
- 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, true, true);
-
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- vie_encoder_->SetSource(
- &video_source_,
- VideoSendStream::DegradationPreference::kMaintainResolution);
- video_source_.set_adaptation_enabled(true);
-
- int64_t timestamp_ms = fake_clock_.TimeNanos() / rtc::kNumNanosecsPerMillisec;
-
- // Trigger overuse as much as we can.
- for (int i = 0; i < ViEEncoder::kMaxCpuResolutionDowngrades; ++i) {
- // Insert frames to get a new fps estimate...
- for (int j = 0; j < kFramerateFps; ++j) {
- video_source_.IncomingCapturedFrame(
- CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight));
- timestamp_ms += kFrameIntervalMs;
- }
- // ...and then try to adapt again.
- vie_encoder_->TriggerCpuOveruse();
- }
-
- // Drain any frame in the pipeline.
- WaitForFrame(kDefaultTimeoutMs);
-
- // Insert frames at min fps, all should go through.
- for (int i = 0; i < 10; ++i) {
- timestamp_ms += kMinFpsFrameInterval;
- video_source_.IncomingCapturedFrame(
- CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight));
- WaitForEncodedFrame(timestamp_ms);
- }
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, AdaptsResolutionAndFramerateForLowQuality_BalancedMode) {
- const int kWidth = 1280;
- const int kHeight = 720;
- const int64_t kFrameIntervalMs = 150;
- int64_t timestamp_ms = kFrameIntervalMs;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kBalanced preference, no initial limitation.
- AdaptingFrameForwarder source;
- source.set_adaptation_enabled(true);
- vie_encoder_->SetSource(&source,
- VideoSendStream::DegradationPreference::kBalanced);
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- 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).
- vie_encoder_->TriggerQualityLow();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsMaxResolutionLt(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityLow();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsMaxResolutionLt(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityLow();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsLtResolutionEq(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityLow();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsEqResolutionLt(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityLow();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsLtResolutionEq(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityLow();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsEqResolutionLt(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityLow();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsLtResolutionEq(source.sink_wants(), 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.
- vie_encoder_->TriggerQualityLow();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsEqResolutionEq(source.sink_wants(), 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 down, expect expect increased fps (320x180@10fps).
- vie_encoder_->TriggerQualityHigh();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsGtResolutionEq(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityHigh();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsEqResolutionGt(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityHigh();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsGtResolutionEq(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityHigh();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsEqResolutionGt(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityHigh();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsMaxResolutionEq(source.sink_wants(), source.last_wants());
- 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).
- vie_encoder_->TriggerQualityHigh();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsMaxResolutionGt(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityHigh();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(kWidth, kHeight);
- VerifyFpsMaxResolutionGt(source.sink_wants(), source.last_wants());
- VerifyNoLimitation(source.sink_wants());
- 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.
- vie_encoder_->TriggerQualityHigh();
- VerifyNoLimitation(source.sink_wants());
- EXPECT_EQ(14, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, AdaptWithTwoReasonsAndDifferentOrder_Framerate) {
- const int kWidth = 1280;
- const int kHeight = 720;
- const int64_t kFrameIntervalMs = 150;
- int64_t timestamp_ms = kFrameIntervalMs;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kBalanced preference, no initial limitation.
- AdaptingFrameForwarder source;
- source.set_adaptation_enabled(true);
- vie_encoder_->SetSource(&source,
- VideoSendStream::DegradationPreference::kBalanced);
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- 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).
- vie_encoder_->TriggerCpuOveruse();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsMaxResolutionLt(source.sink_wants(), 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).
- vie_encoder_->TriggerCpuOveruse();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsMaxResolutionLt(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityLow();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsLtResolutionEq(source.sink_wants(), source.last_wants());
- EXPECT_FALSE(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 increased fps (640x360@30fps).
- vie_encoder_->TriggerCpuNormalUsage();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsMaxResolutionEq(source.sink_wants(), 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(1, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- // Trigger quality adapt up, expect upscaled resolution (960x540@30fps).
- vie_encoder_->TriggerQualityHigh();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsMaxResolutionGt(source.sink_wants(), 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(3, stats_proxy_->GetStats().number_of_cpu_adapt_changes);
- EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- // Trigger cpu adapt up, expect no restriction (1280x720fps@30fps).
- vie_encoder_->TriggerCpuNormalUsage();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(kWidth, kHeight);
- VerifyFpsMaxResolutionGt(source.sink_wants(), source.last_wants());
- VerifyNoLimitation(source.sink_wants());
- 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(2, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- // Trigger adapt up, expect no change.
- vie_encoder_->TriggerQualityHigh();
- VerifyNoLimitation(source.sink_wants());
- EXPECT_EQ(4, stats_proxy_->GetStats().number_of_cpu_adapt_changes);
- EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, AdaptWithTwoReasonsAndDifferentOrder_Resolution) {
- const int kWidth = 640;
- const int kHeight = 360;
- const int kFpsLimit = 15;
- const int64_t kFrameIntervalMs = 150;
- int64_t timestamp_ms = kFrameIntervalMs;
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
-
- // Enable kBalanced preference, no initial limitation.
- AdaptingFrameForwarder source;
- source.set_adaptation_enabled(true);
- vie_encoder_->SetSource(&source,
- VideoSendStream::DegradationPreference::kBalanced);
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(kWidth, kHeight);
- VerifyNoLimitation(source.sink_wants());
- 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).
- vie_encoder_->TriggerCpuOveruse();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsEqResolutionMax(source.sink_wants(), 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).
- vie_encoder_->TriggerQualityLow();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsEqResolutionLt(source.sink_wants(), source.last_wants());
- EXPECT_TRUE(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(1, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- // Trigger cpu adapt up, expect upscaled resolution (640x360@15fps).
- vie_encoder_->TriggerCpuNormalUsage();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyFpsEqResolutionGt(source.sink_wants(), 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_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 quality adapt up, expect increased fps (640x360@30fps).
- vie_encoder_->TriggerQualityHigh();
- timestamp_ms += kFrameIntervalMs;
- source.IncomingCapturedFrame(CreateFrame(timestamp_ms, kWidth, kHeight));
- WaitForEncodedFrame(timestamp_ms);
- VerifyNoLimitation(source.sink_wants());
- 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(2, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- // Trigger adapt up, expect no change.
- vie_encoder_->TriggerQualityHigh();
- VerifyNoLimitation(source.sink_wants());
- EXPECT_EQ(2, stats_proxy_->GetStats().number_of_cpu_adapt_changes);
- EXPECT_EQ(2, stats_proxy_->GetStats().number_of_quality_adapt_changes);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, AcceptsFullHdAdaptedDownSimulcastFrames) {
- // 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.temporal_layer_thresholds_bps.resize(num_temporal_layers_ - 1);
- stream.max_framerate = framerate_;
- }
- return streams;
- }
-
- const size_t num_temporal_layers_;
- const int framerate_;
- };
-
- 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;
-
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- // Trigger reconfigure encoder (without resetting the entire instance).
- VideoEncoderConfig video_encoder_config;
- 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);
- vie_encoder_->ConfigureEncoder(std::move(video_encoder_config),
- kMaxPayloadLength, false);
- vie_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.
- vie_encoder_->TriggerCpuOveruse();
- video_source_.IncomingCapturedFrame(
- CreateFrame(2, kFrameWidth, kFrameHeight));
- WaitForEncodedFrame(kAdaptedFrameWidth, kAdaptedFrameHeight);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, PeriodicallyUpdatesChannelParameters) {
- const int kFrameWidth = 1280;
- const int kFrameHeight = 720;
- const int kLowFps = 2;
- const int kHighFps = 30;
-
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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.
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 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 =
- (vcm::VCMProcessTimer::kDefaultProcessIntervalMs * 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);
-
- vie_encoder_->Stop();
-}
-
-TEST_F(ViEEncoderTest, DoesNotUpdateBitrateAllocationWhenSuspended) {
- const int kFrameWidth = 1280;
- const int kFrameHeight = 720;
- const int kTargetBitrateBps = 1000000;
-
- MockBitrateObserver bitrate_observer;
- vie_encoder_->SetBitrateObserver(&bitrate_observer);
-
- EXPECT_CALL(bitrate_observer, OnBitrateAllocationUpdated(_)).Times(1);
- // Initial bitrate update.
- vie_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
- vie_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.
- vie_encoder_->OnBitrateUpdated(0, 0, 1);
-
- // Skip ahead until a new periodic parameter update should have occured.
- timestamp_ms += vcm::VCMProcessTimer::kDefaultProcessIntervalMs;
- fake_clock_.AdvanceTimeMicros(
- vcm::VCMProcessTimer::kDefaultProcessIntervalMs *
- rtc::kNumMicrosecsPerMillisec);
-
- // Bitrate observer should not be called.
- EXPECT_CALL(bitrate_observer, OnBitrateAllocationUpdated(_)).Times(0);
- video_source_.IncomingCapturedFrame(
- CreateFrame(timestamp_ms, kFrameWidth, kFrameHeight));
- ExpectDroppedFrame();
-
- vie_encoder_->Stop();
-}
-
-} // namespace webrtc
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