|  | /* | 
|  | *  Copyright 2016 The WebRTC project authors. All Rights Reserved. | 
|  | * | 
|  | *  Use of this source code is governed by a BSD-style license | 
|  | *  that can be found in the LICENSE file in the root of the source | 
|  | *  tree. An additional intellectual property rights grant can be found | 
|  | *  in the file PATENTS.  All contributing project authors may | 
|  | *  be found in the AUTHORS file in the root of the source tree. | 
|  | */ | 
|  |  | 
|  | #include "video/receive_statistics_proxy.h" | 
|  |  | 
|  | #include <limits> | 
|  | #include <memory> | 
|  | #include <string> | 
|  | #include <tuple> | 
|  | #include <utility> | 
|  |  | 
|  | #include "absl/types/optional.h" | 
|  | #include "api/scoped_refptr.h" | 
|  | #include "api/video/i420_buffer.h" | 
|  | #include "api/video/video_frame.h" | 
|  | #include "api/video/video_frame_buffer.h" | 
|  | #include "api/video/video_rotation.h" | 
|  | #include "system_wrappers/include/metrics.h" | 
|  | #include "test/gtest.h" | 
|  | #include "test/scoped_key_value_config.h" | 
|  |  | 
|  | namespace webrtc { | 
|  | namespace { | 
|  | const int64_t kFreqOffsetProcessIntervalInMs = 40000; | 
|  | const uint32_t kLocalSsrc = 123; | 
|  | const uint32_t kRemoteSsrc = 456; | 
|  | const int kMinRequiredSamples = 200; | 
|  | const int kWidth = 1280; | 
|  | const int kHeight = 720; | 
|  | }  // namespace | 
|  |  | 
|  | // TODO(sakal): ReceiveStatisticsProxy is lacking unittesting. | 
|  | class ReceiveStatisticsProxyTest : public ::testing::Test { | 
|  | public: | 
|  | explicit ReceiveStatisticsProxyTest(std::string field_trials = "") | 
|  | : field_trials_(field_trials), | 
|  | fake_clock_(1234), | 
|  | config_(GetTestConfig()) {} | 
|  | virtual ~ReceiveStatisticsProxyTest() {} | 
|  |  | 
|  | protected: | 
|  | virtual void SetUp() { | 
|  | metrics::Reset(); | 
|  | statistics_proxy_.reset(new ReceiveStatisticsProxy( | 
|  | config_.rtp.remote_ssrc, &fake_clock_, &field_trials_)); | 
|  | } | 
|  |  | 
|  | VideoReceiveStream::Config GetTestConfig() { | 
|  | VideoReceiveStream::Config config(nullptr); | 
|  | config.rtp.local_ssrc = kLocalSsrc; | 
|  | config.rtp.remote_ssrc = kRemoteSsrc; | 
|  | return config; | 
|  | } | 
|  |  | 
|  | VideoFrame CreateFrame(int width, int height) { | 
|  | return CreateVideoFrame(width, height, 0); | 
|  | } | 
|  |  | 
|  | VideoFrame CreateFrameWithRenderTimeMs(int64_t render_time_ms) { | 
|  | return CreateVideoFrame(kWidth, kHeight, render_time_ms); | 
|  | } | 
|  |  | 
|  | VideoFrame CreateVideoFrame(int width, int height, int64_t render_time_ms) { | 
|  | VideoFrame frame = | 
|  | VideoFrame::Builder() | 
|  | .set_video_frame_buffer(I420Buffer::Create(width, height)) | 
|  | .set_timestamp_rtp(0) | 
|  | .set_timestamp_ms(render_time_ms) | 
|  | .set_rotation(kVideoRotation_0) | 
|  | .build(); | 
|  | frame.set_ntp_time_ms(fake_clock_.CurrentNtpInMilliseconds()); | 
|  | return frame; | 
|  | } | 
|  |  | 
|  | test::ScopedKeyValueConfig field_trials_; | 
|  | SimulatedClock fake_clock_; | 
|  | const VideoReceiveStream::Config config_; | 
|  | std::unique_ptr<ReceiveStatisticsProxy> statistics_proxy_; | 
|  | }; | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, OnDecodedFrameIncreasesFramesDecoded) { | 
|  | EXPECT_EQ(0u, statistics_proxy_->GetStats().frames_decoded); | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | for (uint32_t i = 1; i <= 3; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(i, statistics_proxy_->GetStats().frames_decoded); | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, DecodedFpsIsReported) { | 
|  | const int kFps = 20; | 
|  | const int kRequiredSamples = metrics::kMinRunTimeInSeconds * kFps; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | for (int i = 0; i < kRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | fake_clock_.AdvanceTimeMilliseconds(1000 / kFps); | 
|  | } | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.DecodedFramesPerSecond")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.DecodedFramesPerSecond", kFps)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, DecodedFpsIsNotReportedForTooFewSamples) { | 
|  | const int kFps = 20; | 
|  | const int kRequiredSamples = metrics::kMinRunTimeInSeconds * kFps; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | for (int i = 0; i < kRequiredSamples - 1; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | fake_clock_.AdvanceTimeMilliseconds(1000 / kFps); | 
|  | } | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(0, | 
|  | metrics::NumSamples("WebRTC.Video.DecodedFramesPerSecond")); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, | 
|  | OnDecodedFrameWithQpDoesNotResetFramesDecodedOrTotalDecodeTime) { | 
|  | EXPECT_EQ(0u, statistics_proxy_->GetStats().frames_decoded); | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | unsigned int expected_total_decode_time_ms = 0; | 
|  | unsigned int expected_frames_decoded = 0; | 
|  | for (uint32_t i = 1; i <= 3; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 1, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | expected_total_decode_time_ms += 1; | 
|  | ++expected_frames_decoded; | 
|  | EXPECT_EQ(expected_frames_decoded, | 
|  | statistics_proxy_->GetStats().frames_decoded); | 
|  | EXPECT_EQ(expected_total_decode_time_ms, | 
|  | statistics_proxy_->GetStats().total_decode_time_ms); | 
|  | } | 
|  | statistics_proxy_->OnDecodedFrame(frame, 1u, 3, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | ++expected_frames_decoded; | 
|  | expected_total_decode_time_ms += 3; | 
|  | EXPECT_EQ(expected_frames_decoded, | 
|  | statistics_proxy_->GetStats().frames_decoded); | 
|  | EXPECT_EQ(expected_total_decode_time_ms, | 
|  | statistics_proxy_->GetStats().total_decode_time_ms); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, OnDecodedFrameIncreasesQpSum) { | 
|  | EXPECT_EQ(absl::nullopt, statistics_proxy_->GetStats().qp_sum); | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | statistics_proxy_->OnDecodedFrame(frame, 3u, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(3u, statistics_proxy_->GetStats().qp_sum); | 
|  | statistics_proxy_->OnDecodedFrame(frame, 127u, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(130u, statistics_proxy_->GetStats().qp_sum); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, OnDecodedFrameIncreasesTotalDecodeTime) { | 
|  | EXPECT_EQ(absl::nullopt, statistics_proxy_->GetStats().qp_sum); | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | statistics_proxy_->OnDecodedFrame(frame, 3u, 4, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(4u, statistics_proxy_->GetStats().total_decode_time_ms); | 
|  | statistics_proxy_->OnDecodedFrame(frame, 127u, 7, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(11u, statistics_proxy_->GetStats().total_decode_time_ms); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, ReportsContentType) { | 
|  | const std::string kRealtimeString("realtime"); | 
|  | const std::string kScreenshareString("screen"); | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | EXPECT_EQ(kRealtimeString, videocontenttypehelpers::ToString( | 
|  | statistics_proxy_->GetStats().content_type)); | 
|  | statistics_proxy_->OnDecodedFrame(frame, 3u, 0, | 
|  | VideoContentType::SCREENSHARE); | 
|  | EXPECT_EQ(kScreenshareString, | 
|  | videocontenttypehelpers::ToString( | 
|  | statistics_proxy_->GetStats().content_type)); | 
|  | statistics_proxy_->OnDecodedFrame(frame, 3u, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(kRealtimeString, videocontenttypehelpers::ToString( | 
|  | statistics_proxy_->GetStats().content_type)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, ReportsMaxTotalInterFrameDelay) { | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | const TimeDelta kInterFrameDelay1 = TimeDelta::Millis(100); | 
|  | const TimeDelta kInterFrameDelay2 = TimeDelta::Millis(200); | 
|  | const TimeDelta kInterFrameDelay3 = TimeDelta::Millis(300); | 
|  | double expected_total_inter_frame_delay = 0; | 
|  | double expected_total_squared_inter_frame_delay = 0; | 
|  | EXPECT_EQ(expected_total_inter_frame_delay, | 
|  | statistics_proxy_->GetStats().total_inter_frame_delay); | 
|  | EXPECT_EQ(expected_total_squared_inter_frame_delay, | 
|  | statistics_proxy_->GetStats().total_squared_inter_frame_delay); | 
|  |  | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_DOUBLE_EQ(expected_total_inter_frame_delay, | 
|  | statistics_proxy_->GetStats().total_inter_frame_delay); | 
|  | EXPECT_DOUBLE_EQ( | 
|  | expected_total_squared_inter_frame_delay, | 
|  | statistics_proxy_->GetStats().total_squared_inter_frame_delay); | 
|  |  | 
|  | fake_clock_.AdvanceTime(kInterFrameDelay1); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | expected_total_inter_frame_delay += kInterFrameDelay1.seconds<double>(); | 
|  | expected_total_squared_inter_frame_delay += | 
|  | pow(kInterFrameDelay1.seconds<double>(), 2.0); | 
|  | EXPECT_DOUBLE_EQ(expected_total_inter_frame_delay, | 
|  | statistics_proxy_->GetStats().total_inter_frame_delay); | 
|  | EXPECT_DOUBLE_EQ( | 
|  | expected_total_squared_inter_frame_delay, | 
|  | statistics_proxy_->GetStats().total_squared_inter_frame_delay); | 
|  |  | 
|  | fake_clock_.AdvanceTime(kInterFrameDelay2); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | expected_total_inter_frame_delay += kInterFrameDelay2.seconds<double>(); | 
|  | expected_total_squared_inter_frame_delay += | 
|  | pow(kInterFrameDelay2.seconds<double>(), 2.0); | 
|  | EXPECT_DOUBLE_EQ(expected_total_inter_frame_delay, | 
|  | statistics_proxy_->GetStats().total_inter_frame_delay); | 
|  | EXPECT_DOUBLE_EQ( | 
|  | expected_total_squared_inter_frame_delay, | 
|  | statistics_proxy_->GetStats().total_squared_inter_frame_delay); | 
|  |  | 
|  | fake_clock_.AdvanceTime(kInterFrameDelay3); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | expected_total_inter_frame_delay += kInterFrameDelay3.seconds<double>(); | 
|  | expected_total_squared_inter_frame_delay += | 
|  | pow(kInterFrameDelay3.seconds<double>(), 2.0); | 
|  | EXPECT_DOUBLE_EQ(expected_total_inter_frame_delay, | 
|  | statistics_proxy_->GetStats().total_inter_frame_delay); | 
|  | EXPECT_DOUBLE_EQ( | 
|  | expected_total_squared_inter_frame_delay, | 
|  | statistics_proxy_->GetStats().total_squared_inter_frame_delay); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, ReportsMaxInterframeDelay) { | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | const int64_t kInterframeDelayMs1 = 100; | 
|  | const int64_t kInterframeDelayMs2 = 200; | 
|  | const int64_t kInterframeDelayMs3 = 100; | 
|  | EXPECT_EQ(-1, statistics_proxy_->GetStats().interframe_delay_max_ms); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(-1, statistics_proxy_->GetStats().interframe_delay_max_ms); | 
|  |  | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterframeDelayMs1); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(kInterframeDelayMs1, | 
|  | statistics_proxy_->GetStats().interframe_delay_max_ms); | 
|  |  | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterframeDelayMs2); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(kInterframeDelayMs2, | 
|  | statistics_proxy_->GetStats().interframe_delay_max_ms); | 
|  |  | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterframeDelayMs3); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | // kInterframeDelayMs3 is smaller than kInterframeDelayMs2. | 
|  | EXPECT_EQ(kInterframeDelayMs2, | 
|  | statistics_proxy_->GetStats().interframe_delay_max_ms); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, ReportInterframeDelayInWindow) { | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | const int64_t kInterframeDelayMs1 = 900; | 
|  | const int64_t kInterframeDelayMs2 = 750; | 
|  | const int64_t kInterframeDelayMs3 = 700; | 
|  | EXPECT_EQ(-1, statistics_proxy_->GetStats().interframe_delay_max_ms); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(-1, statistics_proxy_->GetStats().interframe_delay_max_ms); | 
|  |  | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterframeDelayMs1); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(kInterframeDelayMs1, | 
|  | statistics_proxy_->GetStats().interframe_delay_max_ms); | 
|  |  | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterframeDelayMs2); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | // Still first delay is the maximum | 
|  | EXPECT_EQ(kInterframeDelayMs1, | 
|  | statistics_proxy_->GetStats().interframe_delay_max_ms); | 
|  |  | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterframeDelayMs3); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | // Now the first sample is out of the window, so the second is the maximum. | 
|  | EXPECT_EQ(kInterframeDelayMs2, | 
|  | statistics_proxy_->GetStats().interframe_delay_max_ms); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, ReportsFreezeMetrics) { | 
|  | const int64_t kFreezeDurationMs = 1000; | 
|  |  | 
|  | VideoReceiveStream::Stats stats = statistics_proxy_->GetStats(); | 
|  | EXPECT_EQ(0u, stats.freeze_count); | 
|  | EXPECT_FALSE(stats.total_freezes_duration_ms); | 
|  |  | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | for (size_t i = 0; i < VideoQualityObserver::kMinFrameSamplesToDetectFreeze; | 
|  | ++i) { | 
|  | fake_clock_.AdvanceTimeMilliseconds(30); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | } | 
|  |  | 
|  | // Freeze. | 
|  | fake_clock_.AdvanceTimeMilliseconds(kFreezeDurationMs); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  |  | 
|  | stats = statistics_proxy_->GetStats(); | 
|  | EXPECT_EQ(1u, stats.freeze_count); | 
|  | EXPECT_EQ(kFreezeDurationMs, stats.total_freezes_duration_ms); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, ReportsPauseMetrics) { | 
|  | VideoReceiveStream::Stats stats = statistics_proxy_->GetStats(); | 
|  | ASSERT_EQ(0u, stats.pause_count); | 
|  | ASSERT_EQ(0u, stats.total_pauses_duration_ms); | 
|  |  | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  |  | 
|  | // Pause. | 
|  | fake_clock_.AdvanceTimeMilliseconds(5432); | 
|  | statistics_proxy_->OnStreamInactive(); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  |  | 
|  | stats = statistics_proxy_->GetStats(); | 
|  | EXPECT_EQ(1u, stats.pause_count); | 
|  | EXPECT_EQ(5432u, stats.total_pauses_duration_ms); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, PauseBeforeFirstAndAfterLastFrameIgnored) { | 
|  | VideoReceiveStream::Stats stats = statistics_proxy_->GetStats(); | 
|  | ASSERT_EQ(0u, stats.pause_count); | 
|  | ASSERT_EQ(0u, stats.total_pauses_duration_ms); | 
|  |  | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | // Pause -> Frame -> Pause | 
|  | fake_clock_.AdvanceTimeMilliseconds(5000); | 
|  | statistics_proxy_->OnStreamInactive(); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  |  | 
|  | fake_clock_.AdvanceTimeMilliseconds(30); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  |  | 
|  | fake_clock_.AdvanceTimeMilliseconds(5000); | 
|  | statistics_proxy_->OnStreamInactive(); | 
|  |  | 
|  | stats = statistics_proxy_->GetStats(); | 
|  | EXPECT_EQ(0u, stats.pause_count); | 
|  | EXPECT_EQ(0u, stats.total_pauses_duration_ms); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, ReportsFramesDuration) { | 
|  | VideoReceiveStream::Stats stats = statistics_proxy_->GetStats(); | 
|  | ASSERT_EQ(0u, stats.total_frames_duration_ms); | 
|  |  | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | // Emulate delay before first frame is rendered. This is needed to ensure | 
|  | // that frame duration only covers time since first frame is rendered and | 
|  | // not the total time. | 
|  | fake_clock_.AdvanceTimeMilliseconds(5432); | 
|  |  | 
|  | for (int i = 0; i <= 10; ++i) { | 
|  | fake_clock_.AdvanceTimeMilliseconds(30); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | } | 
|  |  | 
|  | stats = statistics_proxy_->GetStats(); | 
|  | EXPECT_EQ(10 * 30u, stats.total_frames_duration_ms); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, ReportsSumSquaredFrameDurations) { | 
|  | VideoReceiveStream::Stats stats = statistics_proxy_->GetStats(); | 
|  | ASSERT_EQ(0u, stats.sum_squared_frame_durations); | 
|  |  | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | for (int i = 0; i <= 10; ++i) { | 
|  | fake_clock_.AdvanceTimeMilliseconds(30); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | } | 
|  |  | 
|  | stats = statistics_proxy_->GetStats(); | 
|  | const double kExpectedSumSquaredFrameDurationsSecs = | 
|  | 10 * (30 / 1000.0 * 30 / 1000.0); | 
|  | EXPECT_EQ(kExpectedSumSquaredFrameDurationsSecs, | 
|  | stats.sum_squared_frame_durations); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, OnDecodedFrameWithoutQpQpSumWontExist) { | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | EXPECT_EQ(absl::nullopt, statistics_proxy_->GetStats().qp_sum); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(absl::nullopt, statistics_proxy_->GetStats().qp_sum); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, OnDecodedFrameWithoutQpResetsQpSum) { | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | EXPECT_EQ(absl::nullopt, statistics_proxy_->GetStats().qp_sum); | 
|  | statistics_proxy_->OnDecodedFrame(frame, 3u, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(3u, statistics_proxy_->GetStats().qp_sum); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | EXPECT_EQ(absl::nullopt, statistics_proxy_->GetStats().qp_sum); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, OnRenderedFrameIncreasesFramesRendered) { | 
|  | EXPECT_EQ(0u, statistics_proxy_->GetStats().frames_rendered); | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | for (uint32_t i = 1; i <= 3; ++i) { | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | EXPECT_EQ(i, statistics_proxy_->GetStats().frames_rendered); | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsSsrc) { | 
|  | EXPECT_EQ(kRemoteSsrc, statistics_proxy_->GetStats().ssrc); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsIncomingPayloadType) { | 
|  | const int kPayloadType = 111; | 
|  | statistics_proxy_->OnIncomingPayloadType(kPayloadType); | 
|  | EXPECT_EQ(kPayloadType, statistics_proxy_->GetStats().current_payload_type); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsDecoderImplementationName) { | 
|  | const char* kName = "decoderName"; | 
|  | statistics_proxy_->OnDecoderImplementationName(kName); | 
|  | EXPECT_STREQ( | 
|  | kName, statistics_proxy_->GetStats().decoder_implementation_name.c_str()); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsOnCompleteFrame) { | 
|  | const int kFrameSizeBytes = 1000; | 
|  | statistics_proxy_->OnCompleteFrame(true, kFrameSizeBytes, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | VideoReceiveStream::Stats stats = statistics_proxy_->GetStats(); | 
|  | EXPECT_EQ(1, stats.network_frame_rate); | 
|  | EXPECT_EQ(1, stats.frame_counts.key_frames); | 
|  | EXPECT_EQ(0, stats.frame_counts.delta_frames); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsOnDroppedFrame) { | 
|  | unsigned int dropped_frames = 0; | 
|  | for (int i = 0; i < 10; ++i) { | 
|  | statistics_proxy_->OnDroppedFrames(i); | 
|  | dropped_frames += i; | 
|  | } | 
|  | VideoReceiveStream::Stats stats = statistics_proxy_->GetStats(); | 
|  | EXPECT_EQ(dropped_frames, stats.frames_dropped); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsDecodeTimingStats) { | 
|  | const int kMaxDecodeMs = 2; | 
|  | const int kCurrentDelayMs = 3; | 
|  | const int kTargetDelayMs = 4; | 
|  | const int kJitterBufferMs = 5; | 
|  | const int kMinPlayoutDelayMs = 6; | 
|  | const int kRenderDelayMs = 7; | 
|  | const int64_t kRttMs = 8; | 
|  | statistics_proxy_->OnRttUpdate(kRttMs, 0); | 
|  | statistics_proxy_->OnFrameBufferTimingsUpdated( | 
|  | kMaxDecodeMs, kCurrentDelayMs, kTargetDelayMs, kJitterBufferMs, | 
|  | kMinPlayoutDelayMs, kRenderDelayMs); | 
|  | VideoReceiveStream::Stats stats = statistics_proxy_->GetStats(); | 
|  | EXPECT_EQ(kMaxDecodeMs, stats.max_decode_ms); | 
|  | EXPECT_EQ(kCurrentDelayMs, stats.current_delay_ms); | 
|  | EXPECT_EQ(kTargetDelayMs, stats.target_delay_ms); | 
|  | EXPECT_EQ(kJitterBufferMs, stats.jitter_buffer_ms); | 
|  | EXPECT_EQ(kMinPlayoutDelayMs, stats.min_playout_delay_ms); | 
|  | EXPECT_EQ(kRenderDelayMs, stats.render_delay_ms); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsRtcpPacketTypeCounts) { | 
|  | const uint32_t kFirPackets = 33; | 
|  | const uint32_t kPliPackets = 44; | 
|  | const uint32_t kNackPackets = 55; | 
|  | RtcpPacketTypeCounter counter; | 
|  | counter.fir_packets = kFirPackets; | 
|  | counter.pli_packets = kPliPackets; | 
|  | counter.nack_packets = kNackPackets; | 
|  | statistics_proxy_->RtcpPacketTypesCounterUpdated(kRemoteSsrc, counter); | 
|  | VideoReceiveStream::Stats stats = statistics_proxy_->GetStats(); | 
|  | EXPECT_EQ(kFirPackets, stats.rtcp_packet_type_counts.fir_packets); | 
|  | EXPECT_EQ(kPliPackets, stats.rtcp_packet_type_counts.pli_packets); | 
|  | EXPECT_EQ(kNackPackets, stats.rtcp_packet_type_counts.nack_packets); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, | 
|  | GetStatsReportsNoRtcpPacketTypeCountsForUnknownSsrc) { | 
|  | RtcpPacketTypeCounter counter; | 
|  | counter.fir_packets = 33; | 
|  | statistics_proxy_->RtcpPacketTypesCounterUpdated(kRemoteSsrc + 1, counter); | 
|  | EXPECT_EQ(0u, | 
|  | statistics_proxy_->GetStats().rtcp_packet_type_counts.fir_packets); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsFrameCounts) { | 
|  | const int kKeyFrames = 3; | 
|  | const int kDeltaFrames = 22; | 
|  | for (int i = 0; i < kKeyFrames; i++) { | 
|  | statistics_proxy_->OnCompleteFrame(true, 0, VideoContentType::UNSPECIFIED); | 
|  | } | 
|  | for (int i = 0; i < kDeltaFrames; i++) { | 
|  | statistics_proxy_->OnCompleteFrame(false, 0, VideoContentType::UNSPECIFIED); | 
|  | } | 
|  |  | 
|  | VideoReceiveStream::Stats stats = statistics_proxy_->GetStats(); | 
|  | EXPECT_EQ(kKeyFrames, stats.frame_counts.key_frames); | 
|  | EXPECT_EQ(kDeltaFrames, stats.frame_counts.delta_frames); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsCName) { | 
|  | const char* kName = "cName"; | 
|  | statistics_proxy_->OnCname(kRemoteSsrc, kName); | 
|  | EXPECT_STREQ(kName, statistics_proxy_->GetStats().c_name.c_str()); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsNoCNameForUnknownSsrc) { | 
|  | const char* kName = "cName"; | 
|  | statistics_proxy_->OnCname(kRemoteSsrc + 1, kName); | 
|  | EXPECT_STREQ("", statistics_proxy_->GetStats().c_name.c_str()); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, ReportsLongestTimingFrameInfo) { | 
|  | const int64_t kShortEndToEndDelay = 10; | 
|  | const int64_t kMedEndToEndDelay = 20; | 
|  | const int64_t kLongEndToEndDelay = 100; | 
|  | const uint32_t kExpectedRtpTimestamp = 2; | 
|  | TimingFrameInfo info; | 
|  | absl::optional<TimingFrameInfo> result; | 
|  | info.rtp_timestamp = kExpectedRtpTimestamp - 1; | 
|  | info.capture_time_ms = 0; | 
|  | info.decode_finish_ms = kShortEndToEndDelay; | 
|  | statistics_proxy_->OnTimingFrameInfoUpdated(info); | 
|  | info.rtp_timestamp = | 
|  | kExpectedRtpTimestamp;  // this frame should be reported in the end. | 
|  | info.capture_time_ms = 0; | 
|  | info.decode_finish_ms = kLongEndToEndDelay; | 
|  | statistics_proxy_->OnTimingFrameInfoUpdated(info); | 
|  | info.rtp_timestamp = kExpectedRtpTimestamp + 1; | 
|  | info.capture_time_ms = 0; | 
|  | info.decode_finish_ms = kMedEndToEndDelay; | 
|  | statistics_proxy_->OnTimingFrameInfoUpdated(info); | 
|  | result = statistics_proxy_->GetStats().timing_frame_info; | 
|  | EXPECT_TRUE(result); | 
|  | EXPECT_EQ(kExpectedRtpTimestamp, result->rtp_timestamp); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, RespectsReportingIntervalForTimingFrames) { | 
|  | TimingFrameInfo info; | 
|  | const int64_t kShortEndToEndDelay = 10; | 
|  | const uint32_t kExpectedRtpTimestamp = 2; | 
|  | const int64_t kShortDelayMs = 1000; | 
|  | const int64_t kLongDelayMs = 10000; | 
|  | absl::optional<TimingFrameInfo> result; | 
|  | info.rtp_timestamp = kExpectedRtpTimestamp; | 
|  | info.capture_time_ms = 0; | 
|  | info.decode_finish_ms = kShortEndToEndDelay; | 
|  | statistics_proxy_->OnTimingFrameInfoUpdated(info); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kShortDelayMs); | 
|  | result = statistics_proxy_->GetStats().timing_frame_info; | 
|  | EXPECT_TRUE(result); | 
|  | EXPECT_EQ(kExpectedRtpTimestamp, result->rtp_timestamp); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kLongDelayMs); | 
|  | result = statistics_proxy_->GetStats().timing_frame_info; | 
|  | EXPECT_FALSE(result); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, LifetimeHistogramIsUpdated) { | 
|  | const int64_t kTimeSec = 3; | 
|  | fake_clock_.AdvanceTimeMilliseconds(kTimeSec * 1000); | 
|  | // Need at least one frame to report stream lifetime. | 
|  | statistics_proxy_->OnCompleteFrame(true, 1000, VideoContentType::UNSPECIFIED); | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.ReceiveStreamLifetimeInSeconds")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.ReceiveStreamLifetimeInSeconds", | 
|  | kTimeSec)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, | 
|  | LifetimeHistogramNotReportedForEmptyStreams) { | 
|  | const int64_t kTimeSec = 3; | 
|  | fake_clock_.AdvanceTimeMilliseconds(kTimeSec * 1000); | 
|  | // No frames received. | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ( | 
|  | 0, metrics::NumSamples("WebRTC.Video.ReceiveStreamLifetimeInSeconds")); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, BadCallHistogramsAreUpdated) { | 
|  | // Based on the tuning parameters this will produce 7 uncertain states, | 
|  | // then 10 certainly bad states. There has to be 10 certain states before | 
|  | // any histograms are recorded. | 
|  | const int kNumBadSamples = 17; | 
|  | // We only count one sample per second. | 
|  | const int kBadFameIntervalMs = 1100; | 
|  |  | 
|  | StreamDataCounters counters; | 
|  | counters.first_packet_time_ms = fake_clock_.TimeInMilliseconds(); | 
|  |  | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | for (int i = 0; i < kNumBadSamples; ++i) { | 
|  | fake_clock_.AdvanceTimeMilliseconds(kBadFameIntervalMs); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | } | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, counters, nullptr); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples("WebRTC.Video.BadCall.Any")); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumEvents("WebRTC.Video.BadCall.Any", 100)); | 
|  |  | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples("WebRTC.Video.BadCall.FrameRate")); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumEvents("WebRTC.Video.BadCall.FrameRate", 100)); | 
|  |  | 
|  | EXPECT_METRIC_EQ( | 
|  | 0, metrics::NumSamples("WebRTC.Video.BadCall.FrameRateVariance")); | 
|  |  | 
|  | EXPECT_METRIC_EQ(0, metrics::NumSamples("WebRTC.Video.BadCall.Qp")); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, PacketLossHistogramIsUpdated) { | 
|  | statistics_proxy_->UpdateHistograms(10, StreamDataCounters(), nullptr); | 
|  | EXPECT_METRIC_EQ( | 
|  | 0, metrics::NumSamples("WebRTC.Video.ReceivedPacketsLostInPercent")); | 
|  |  | 
|  | // Restart | 
|  | SetUp(); | 
|  |  | 
|  | // Min run time has passed. | 
|  | fake_clock_.AdvanceTimeMilliseconds(metrics::kMinRunTimeInSeconds * 1000); | 
|  | statistics_proxy_->UpdateHistograms(10, StreamDataCounters(), nullptr); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.ReceivedPacketsLostInPercent")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.ReceivedPacketsLostInPercent", 10)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsPlayoutTimestamp) { | 
|  | const int64_t kVideoNtpMs = 21; | 
|  | const int64_t kSyncOffsetMs = 22; | 
|  | const double kFreqKhz = 90.0; | 
|  | EXPECT_EQ(absl::nullopt, | 
|  | statistics_proxy_->GetStats().estimated_playout_ntp_timestamp_ms); | 
|  | statistics_proxy_->OnSyncOffsetUpdated(kVideoNtpMs, kSyncOffsetMs, kFreqKhz); | 
|  | EXPECT_EQ(kVideoNtpMs, | 
|  | statistics_proxy_->GetStats().estimated_playout_ntp_timestamp_ms); | 
|  | fake_clock_.AdvanceTimeMilliseconds(13); | 
|  | EXPECT_EQ(kVideoNtpMs + 13, | 
|  | statistics_proxy_->GetStats().estimated_playout_ntp_timestamp_ms); | 
|  | fake_clock_.AdvanceTimeMilliseconds(5); | 
|  | EXPECT_EQ(kVideoNtpMs + 13 + 5, | 
|  | statistics_proxy_->GetStats().estimated_playout_ntp_timestamp_ms); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsAvSyncOffset) { | 
|  | const int64_t kVideoNtpMs = 21; | 
|  | const int64_t kSyncOffsetMs = 22; | 
|  | const double kFreqKhz = 90.0; | 
|  | EXPECT_EQ(std::numeric_limits<int>::max(), | 
|  | statistics_proxy_->GetStats().sync_offset_ms); | 
|  | statistics_proxy_->OnSyncOffsetUpdated(kVideoNtpMs, kSyncOffsetMs, kFreqKhz); | 
|  | EXPECT_EQ(kSyncOffsetMs, statistics_proxy_->GetStats().sync_offset_ms); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, AvSyncOffsetHistogramIsUpdated) { | 
|  | const int64_t kVideoNtpMs = 21; | 
|  | const int64_t kSyncOffsetMs = 22; | 
|  | const double kFreqKhz = 90.0; | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) | 
|  | statistics_proxy_->OnSyncOffsetUpdated(kVideoNtpMs, kSyncOffsetMs, | 
|  | kFreqKhz); | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples("WebRTC.Video.AVSyncOffsetInMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.AVSyncOffsetInMs", kSyncOffsetMs)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, RtpToNtpFrequencyOffsetHistogramIsUpdated) { | 
|  | const int64_t kVideoNtpMs = 21; | 
|  | const int64_t kSyncOffsetMs = 22; | 
|  | const double kFreqKhz = 90.0; | 
|  | statistics_proxy_->OnSyncOffsetUpdated(kVideoNtpMs, kSyncOffsetMs, kFreqKhz); | 
|  | statistics_proxy_->OnSyncOffsetUpdated(kVideoNtpMs, kSyncOffsetMs, | 
|  | kFreqKhz + 2.2); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kFreqOffsetProcessIntervalInMs); | 
|  | // Process interval passed, max diff: 2. | 
|  | statistics_proxy_->OnSyncOffsetUpdated(kVideoNtpMs, kSyncOffsetMs, | 
|  | kFreqKhz + 1.1); | 
|  | statistics_proxy_->OnSyncOffsetUpdated(kVideoNtpMs, kSyncOffsetMs, | 
|  | kFreqKhz - 4.2); | 
|  | statistics_proxy_->OnSyncOffsetUpdated(kVideoNtpMs, kSyncOffsetMs, | 
|  | kFreqKhz - 0.9); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kFreqOffsetProcessIntervalInMs); | 
|  | // Process interval passed, max diff: 4. | 
|  | statistics_proxy_->OnSyncOffsetUpdated(kVideoNtpMs, kSyncOffsetMs, kFreqKhz); | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | // Average reported: (2 + 4) / 2 = 3. | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.RtpToNtpFreqOffsetInKhz")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.RtpToNtpFreqOffsetInKhz", 3)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, Vp8QpHistogramIsUpdated) { | 
|  | const int kQp = 22; | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) | 
|  | statistics_proxy_->OnPreDecode(kVideoCodecVP8, kQp); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples("WebRTC.Video.Decoded.Vp8.Qp")); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumEvents("WebRTC.Video.Decoded.Vp8.Qp", kQp)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, Vp8QpHistogramIsNotUpdatedForTooFewSamples) { | 
|  | const int kQp = 22; | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples - 1; ++i) | 
|  | statistics_proxy_->OnPreDecode(kVideoCodecVP8, kQp); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(0, metrics::NumSamples("WebRTC.Video.Decoded.Vp8.Qp")); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, Vp8QpHistogramIsNotUpdatedIfNoQpValue) { | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) | 
|  | statistics_proxy_->OnPreDecode(kVideoCodecVP8, -1); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(0, metrics::NumSamples("WebRTC.Video.Decoded.Vp8.Qp")); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, | 
|  | KeyFrameHistogramNotUpdatedForTooFewSamples) { | 
|  | const bool kIsKeyFrame = false; | 
|  | const int kFrameSizeBytes = 1000; | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples - 1; ++i) | 
|  | statistics_proxy_->OnCompleteFrame(kIsKeyFrame, kFrameSizeBytes, | 
|  | VideoContentType::UNSPECIFIED); | 
|  |  | 
|  | EXPECT_EQ(0, statistics_proxy_->GetStats().frame_counts.key_frames); | 
|  | EXPECT_EQ(kMinRequiredSamples - 1, | 
|  | statistics_proxy_->GetStats().frame_counts.delta_frames); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ( | 
|  | 0, metrics::NumSamples("WebRTC.Video.KeyFramesReceivedInPermille")); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, | 
|  | KeyFrameHistogramUpdatedForMinRequiredSamples) { | 
|  | const bool kIsKeyFrame = false; | 
|  | const int kFrameSizeBytes = 1000; | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) | 
|  | statistics_proxy_->OnCompleteFrame(kIsKeyFrame, kFrameSizeBytes, | 
|  | VideoContentType::UNSPECIFIED); | 
|  |  | 
|  | EXPECT_EQ(0, statistics_proxy_->GetStats().frame_counts.key_frames); | 
|  | EXPECT_EQ(kMinRequiredSamples, | 
|  | statistics_proxy_->GetStats().frame_counts.delta_frames); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.KeyFramesReceivedInPermille")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.KeyFramesReceivedInPermille", 0)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, KeyFrameHistogramIsUpdated) { | 
|  | const int kFrameSizeBytes = 1000; | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) | 
|  | statistics_proxy_->OnCompleteFrame(true, kFrameSizeBytes, | 
|  | VideoContentType::UNSPECIFIED); | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) | 
|  | statistics_proxy_->OnCompleteFrame(false, kFrameSizeBytes, | 
|  | VideoContentType::UNSPECIFIED); | 
|  |  | 
|  | EXPECT_EQ(kMinRequiredSamples, | 
|  | statistics_proxy_->GetStats().frame_counts.key_frames); | 
|  | EXPECT_EQ(kMinRequiredSamples, | 
|  | statistics_proxy_->GetStats().frame_counts.delta_frames); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.KeyFramesReceivedInPermille")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.KeyFramesReceivedInPermille", 500)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, TimingHistogramsNotUpdatedForTooFewSamples) { | 
|  | const int kMaxDecodeMs = 2; | 
|  | const int kCurrentDelayMs = 3; | 
|  | const int kTargetDelayMs = 4; | 
|  | const int kJitterBufferMs = 5; | 
|  | const int kMinPlayoutDelayMs = 6; | 
|  | const int kRenderDelayMs = 7; | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples - 1; ++i) { | 
|  | statistics_proxy_->OnFrameBufferTimingsUpdated( | 
|  | kMaxDecodeMs, kCurrentDelayMs, kTargetDelayMs, kJitterBufferMs, | 
|  | kMinPlayoutDelayMs, kRenderDelayMs); | 
|  | } | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(0, metrics::NumSamples("WebRTC.Video.DecodeTimeInMs")); | 
|  | EXPECT_METRIC_EQ(0, | 
|  | metrics::NumSamples("WebRTC.Video.JitterBufferDelayInMs")); | 
|  | EXPECT_METRIC_EQ(0, metrics::NumSamples("WebRTC.Video.TargetDelayInMs")); | 
|  | EXPECT_METRIC_EQ(0, metrics::NumSamples("WebRTC.Video.CurrentDelayInMs")); | 
|  | EXPECT_METRIC_EQ(0, metrics::NumSamples("WebRTC.Video.OnewayDelayInMs")); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, TimingHistogramsAreUpdated) { | 
|  | const int kMaxDecodeMs = 2; | 
|  | const int kCurrentDelayMs = 3; | 
|  | const int kTargetDelayMs = 4; | 
|  | const int kJitterBufferMs = 5; | 
|  | const int kMinPlayoutDelayMs = 6; | 
|  | const int kRenderDelayMs = 7; | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnFrameBufferTimingsUpdated( | 
|  | kMaxDecodeMs, kCurrentDelayMs, kTargetDelayMs, kJitterBufferMs, | 
|  | kMinPlayoutDelayMs, kRenderDelayMs); | 
|  | } | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.JitterBufferDelayInMs")); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples("WebRTC.Video.TargetDelayInMs")); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples("WebRTC.Video.CurrentDelayInMs")); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples("WebRTC.Video.OnewayDelayInMs")); | 
|  |  | 
|  | EXPECT_METRIC_EQ(1, metrics::NumEvents("WebRTC.Video.JitterBufferDelayInMs", | 
|  | kJitterBufferMs)); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.TargetDelayInMs", kTargetDelayMs)); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.CurrentDelayInMs", kCurrentDelayMs)); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.OnewayDelayInMs", kTargetDelayMs)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, DoesNotReportStaleFramerates) { | 
|  | const int kDefaultFps = 30; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | for (int i = 0; i < kDefaultFps; ++i) { | 
|  | // Since OnRenderedFrame is never called the fps in each sample will be 0, | 
|  | // i.e. bad | 
|  | frame.set_ntp_time_ms(fake_clock_.CurrentNtpInMilliseconds()); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | fake_clock_.AdvanceTimeMilliseconds(1000 / kDefaultFps); | 
|  | } | 
|  |  | 
|  | EXPECT_EQ(kDefaultFps, statistics_proxy_->GetStats().decode_frame_rate); | 
|  | EXPECT_EQ(kDefaultFps, statistics_proxy_->GetStats().render_frame_rate); | 
|  |  | 
|  | // FPS trackers in stats proxy have a 1000ms sliding window. | 
|  | fake_clock_.AdvanceTimeMilliseconds(1000); | 
|  | EXPECT_EQ(0, statistics_proxy_->GetStats().decode_frame_rate); | 
|  | EXPECT_EQ(0, statistics_proxy_->GetStats().render_frame_rate); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, GetStatsReportsReceivedFrameStats) { | 
|  | EXPECT_EQ(0, statistics_proxy_->GetStats().width); | 
|  | EXPECT_EQ(0, statistics_proxy_->GetStats().height); | 
|  | EXPECT_EQ(0u, statistics_proxy_->GetStats().frames_rendered); | 
|  |  | 
|  | statistics_proxy_->OnRenderedFrame(CreateFrame(kWidth, kHeight)); | 
|  |  | 
|  | EXPECT_EQ(kWidth, statistics_proxy_->GetStats().width); | 
|  | EXPECT_EQ(kHeight, statistics_proxy_->GetStats().height); | 
|  | EXPECT_EQ(1u, statistics_proxy_->GetStats().frames_rendered); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, | 
|  | ReceivedFrameHistogramsAreNotUpdatedForTooFewSamples) { | 
|  | for (int i = 0; i < kMinRequiredSamples - 1; ++i) | 
|  | statistics_proxy_->OnRenderedFrame(CreateFrame(kWidth, kHeight)); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(0, | 
|  | metrics::NumSamples("WebRTC.Video.ReceivedWidthInPixels")); | 
|  | EXPECT_METRIC_EQ(0, | 
|  | metrics::NumSamples("WebRTC.Video.ReceivedHeightInPixels")); | 
|  | EXPECT_METRIC_EQ(0, | 
|  | metrics::NumSamples("WebRTC.Video.RenderFramesPerSecond")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 0, metrics::NumSamples("WebRTC.Video.RenderSqrtPixelsPerSecond")); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, ReceivedFrameHistogramsAreUpdated) { | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) | 
|  | statistics_proxy_->OnRenderedFrame(CreateFrame(kWidth, kHeight)); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.ReceivedWidthInPixels")); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.ReceivedHeightInPixels")); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.RenderFramesPerSecond")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.RenderSqrtPixelsPerSecond")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.ReceivedWidthInPixels", kWidth)); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.ReceivedHeightInPixels", kHeight)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, ZeroDelayReportedIfFrameNotDelayed) { | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  |  | 
|  | // Frame not delayed, delayed frames to render: 0%. | 
|  | const int64_t kNowMs = fake_clock_.TimeInMilliseconds(); | 
|  | statistics_proxy_->OnRenderedFrame(CreateFrameWithRenderTimeMs(kNowMs)); | 
|  |  | 
|  | // Min run time has passed. | 
|  | fake_clock_.AdvanceTimeMilliseconds((metrics::kMinRunTimeInSeconds * 1000)); | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.DelayedFramesToRenderer")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.DelayedFramesToRenderer", 0)); | 
|  | EXPECT_METRIC_EQ(0, metrics::NumSamples( | 
|  | "WebRTC.Video.DelayedFramesToRenderer_AvgDelayInMs")); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, | 
|  | DelayedFrameHistogramsAreNotUpdatedIfMinRuntimeHasNotPassed) { | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  |  | 
|  | // Frame not delayed, delayed frames to render: 0%. | 
|  | const int64_t kNowMs = fake_clock_.TimeInMilliseconds(); | 
|  | statistics_proxy_->OnRenderedFrame(CreateFrameWithRenderTimeMs(kNowMs)); | 
|  |  | 
|  | // Min run time has not passed. | 
|  | fake_clock_.AdvanceTimeMilliseconds((metrics::kMinRunTimeInSeconds * 1000) - | 
|  | 1); | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(0, | 
|  | metrics::NumSamples("WebRTC.Video.DelayedFramesToRenderer")); | 
|  | EXPECT_METRIC_EQ(0, metrics::NumSamples( | 
|  | "WebRTC.Video.DelayedFramesToRenderer_AvgDelayInMs")); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, | 
|  | DelayedFramesHistogramsAreNotUpdatedIfNoRenderedFrames) { | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  |  | 
|  | // Min run time has passed. No rendered frames. | 
|  | fake_clock_.AdvanceTimeMilliseconds((metrics::kMinRunTimeInSeconds * 1000)); | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(0, | 
|  | metrics::NumSamples("WebRTC.Video.DelayedFramesToRenderer")); | 
|  | EXPECT_METRIC_EQ(0, metrics::NumSamples( | 
|  | "WebRTC.Video.DelayedFramesToRenderer_AvgDelayInMs")); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, DelayReportedIfFrameIsDelayed) { | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  |  | 
|  | // Frame delayed 1 ms, delayed frames to render: 100%. | 
|  | const int64_t kNowMs = fake_clock_.TimeInMilliseconds(); | 
|  | statistics_proxy_->OnRenderedFrame(CreateFrameWithRenderTimeMs(kNowMs - 1)); | 
|  |  | 
|  | // Min run time has passed. | 
|  | fake_clock_.AdvanceTimeMilliseconds((metrics::kMinRunTimeInSeconds * 1000)); | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.DelayedFramesToRenderer")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.DelayedFramesToRenderer", 100)); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples( | 
|  | "WebRTC.Video.DelayedFramesToRenderer_AvgDelayInMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.DelayedFramesToRenderer_AvgDelayInMs", | 
|  | 1)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, AverageDelayOfDelayedFramesIsReported) { | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, | 
|  | VideoContentType::UNSPECIFIED); | 
|  |  | 
|  | // Two frames delayed (6 ms, 10 ms), delayed frames to render: 50%. | 
|  | const int64_t kNowMs = fake_clock_.TimeInMilliseconds(); | 
|  | statistics_proxy_->OnRenderedFrame(CreateFrameWithRenderTimeMs(kNowMs - 10)); | 
|  | statistics_proxy_->OnRenderedFrame(CreateFrameWithRenderTimeMs(kNowMs - 6)); | 
|  | statistics_proxy_->OnRenderedFrame(CreateFrameWithRenderTimeMs(kNowMs)); | 
|  | statistics_proxy_->OnRenderedFrame(CreateFrameWithRenderTimeMs(kNowMs + 1)); | 
|  |  | 
|  | // Min run time has passed. | 
|  | fake_clock_.AdvanceTimeMilliseconds((metrics::kMinRunTimeInSeconds * 1000)); | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.DelayedFramesToRenderer")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.DelayedFramesToRenderer", 50)); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples( | 
|  | "WebRTC.Video.DelayedFramesToRenderer_AvgDelayInMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.DelayedFramesToRenderer_AvgDelayInMs", | 
|  | 8)); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, | 
|  | RtcpHistogramsNotUpdatedIfMinRuntimeHasNotPassed) { | 
|  | StreamDataCounters data_counters; | 
|  | data_counters.first_packet_time_ms = fake_clock_.TimeInMilliseconds(); | 
|  |  | 
|  | fake_clock_.AdvanceTimeMilliseconds((metrics::kMinRunTimeInSeconds * 1000) - | 
|  | 1); | 
|  |  | 
|  | RtcpPacketTypeCounter counter; | 
|  | statistics_proxy_->RtcpPacketTypesCounterUpdated(kRemoteSsrc, counter); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, data_counters, nullptr); | 
|  | EXPECT_METRIC_EQ(0, | 
|  | metrics::NumSamples("WebRTC.Video.FirPacketsSentPerMinute")); | 
|  | EXPECT_METRIC_EQ(0, | 
|  | metrics::NumSamples("WebRTC.Video.PliPacketsSentPerMinute")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 0, metrics::NumSamples("WebRTC.Video.NackPacketsSentPerMinute")); | 
|  | } | 
|  |  | 
|  | TEST_F(ReceiveStatisticsProxyTest, RtcpHistogramsAreUpdated) { | 
|  | StreamDataCounters data_counters; | 
|  | data_counters.first_packet_time_ms = fake_clock_.TimeInMilliseconds(); | 
|  | fake_clock_.AdvanceTimeMilliseconds(metrics::kMinRunTimeInSeconds * 1000); | 
|  |  | 
|  | const uint32_t kFirPackets = 100; | 
|  | const uint32_t kPliPackets = 200; | 
|  | const uint32_t kNackPackets = 300; | 
|  |  | 
|  | RtcpPacketTypeCounter counter; | 
|  | counter.fir_packets = kFirPackets; | 
|  | counter.pli_packets = kPliPackets; | 
|  | counter.nack_packets = kNackPackets; | 
|  | statistics_proxy_->RtcpPacketTypesCounterUpdated(kRemoteSsrc, counter); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, data_counters, nullptr); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.FirPacketsSentPerMinute")); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.PliPacketsSentPerMinute")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.NackPacketsSentPerMinute")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.FirPacketsSentPerMinute", | 
|  | kFirPackets * 60 / metrics::kMinRunTimeInSeconds)); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.PliPacketsSentPerMinute", | 
|  | kPliPackets * 60 / metrics::kMinRunTimeInSeconds)); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.NackPacketsSentPerMinute", | 
|  | kNackPackets * 60 / metrics::kMinRunTimeInSeconds)); | 
|  | } | 
|  |  | 
|  | class ReceiveStatisticsProxyTestWithFreezeDuration | 
|  | : public ReceiveStatisticsProxyTest, | 
|  | public ::testing::WithParamInterface< | 
|  | std::tuple<uint32_t, uint32_t, uint32_t>> { | 
|  | protected: | 
|  | const uint32_t frame_duration_ms_ = {std::get<0>(GetParam())}; | 
|  | const uint32_t freeze_duration_ms_ = {std::get<1>(GetParam())}; | 
|  | const uint32_t expected_freeze_count_ = {std::get<2>(GetParam())}; | 
|  | }; | 
|  |  | 
|  | // It is a freeze if: | 
|  | // frame_duration_ms >= max(3 * avg_frame_duration, avg_frame_duration + 150) | 
|  | // where avg_frame_duration is average duration of last 30 frames including | 
|  | // the current one. | 
|  | // | 
|  | // Condition 1: 3 * avg_frame_duration > avg_frame_duration + 150 | 
|  | const auto kFreezeDetectionCond1Freeze = std::make_tuple(150, 483, 1); | 
|  | const auto kFreezeDetectionCond1NotFreeze = std::make_tuple(150, 482, 0); | 
|  | // Condition 2: 3 * avg_frame_duration < avg_frame_duration + 150 | 
|  | const auto kFreezeDetectionCond2Freeze = std::make_tuple(30, 185, 1); | 
|  | const auto kFreezeDetectionCond2NotFreeze = std::make_tuple(30, 184, 0); | 
|  |  | 
|  | INSTANTIATE_TEST_SUITE_P(_, | 
|  | ReceiveStatisticsProxyTestWithFreezeDuration, | 
|  | ::testing::Values(kFreezeDetectionCond1Freeze, | 
|  | kFreezeDetectionCond1NotFreeze, | 
|  | kFreezeDetectionCond2Freeze, | 
|  | kFreezeDetectionCond2NotFreeze)); | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithFreezeDuration, FreezeDetection) { | 
|  | VideoReceiveStream::Stats stats = statistics_proxy_->GetStats(); | 
|  | EXPECT_EQ(0u, stats.freeze_count); | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | // Add a very long frame. This is need to verify that average frame | 
|  | // duration, which is supposed to be calculated as mean of durations of | 
|  | // last 30 frames, is calculated correctly. | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | fake_clock_.AdvanceTimeMilliseconds(2000); | 
|  |  | 
|  | for (size_t i = 0; | 
|  | i <= VideoQualityObserver::kAvgInterframeDelaysWindowSizeFrames; ++i) { | 
|  | fake_clock_.AdvanceTimeMilliseconds(frame_duration_ms_); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | } | 
|  |  | 
|  | fake_clock_.AdvanceTimeMilliseconds(freeze_duration_ms_); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  |  | 
|  | stats = statistics_proxy_->GetStats(); | 
|  | EXPECT_EQ(stats.freeze_count, expected_freeze_count_); | 
|  | } | 
|  |  | 
|  | class ReceiveStatisticsProxyTestWithContent | 
|  | : public ReceiveStatisticsProxyTest, | 
|  | public ::testing::WithParamInterface<webrtc::VideoContentType> { | 
|  | protected: | 
|  | const webrtc::VideoContentType content_type_{GetParam()}; | 
|  | }; | 
|  |  | 
|  | INSTANTIATE_TEST_SUITE_P(ContentTypes, | 
|  | ReceiveStatisticsProxyTestWithContent, | 
|  | ::testing::Values(VideoContentType::UNSPECIFIED, | 
|  | VideoContentType::SCREENSHARE)); | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, InterFrameDelaysAreReported) { | 
|  | const int kInterFrameDelayMs = 33; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | } | 
|  | // One extra with double the interval. | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | const int kExpectedInterFrame = | 
|  | (kInterFrameDelayMs * (kMinRequiredSamples - 1) + | 
|  | kInterFrameDelayMs * 2) / | 
|  | kMinRequiredSamples; | 
|  | if (videocontenttypehelpers::IsScreenshare(content_type_)) { | 
|  | EXPECT_METRIC_EQ( | 
|  | kExpectedInterFrame, | 
|  | metrics::MinSample("WebRTC.Video.Screenshare.InterframeDelayInMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | kInterFrameDelayMs * 2, | 
|  | metrics::MinSample("WebRTC.Video.Screenshare.InterframeDelayMaxInMs")); | 
|  | } else { | 
|  | EXPECT_METRIC_EQ(kExpectedInterFrame, | 
|  | metrics::MinSample("WebRTC.Video.InterframeDelayInMs")); | 
|  | EXPECT_METRIC_EQ(kInterFrameDelayMs * 2, | 
|  | metrics::MinSample("WebRTC.Video.InterframeDelayMaxInMs")); | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, | 
|  | InterFrameDelaysPercentilesAreReported) { | 
|  | const int kInterFrameDelayMs = 33; | 
|  | const int kLastFivePercentsSamples = kMinRequiredSamples * 5 / 100; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | for (int i = 0; i <= kMinRequiredSamples - kLastFivePercentsSamples; ++i) { | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | } | 
|  | // Last 5% of intervals are double in size. | 
|  | for (int i = 0; i < kLastFivePercentsSamples; ++i) { | 
|  | fake_clock_.AdvanceTimeMilliseconds(2 * kInterFrameDelayMs); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | } | 
|  | // Final sample is outlier and 10 times as big. | 
|  | fake_clock_.AdvanceTimeMilliseconds(10 * kInterFrameDelayMs); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | const int kExpectedInterFrame = kInterFrameDelayMs * 2; | 
|  | if (videocontenttypehelpers::IsScreenshare(content_type_)) { | 
|  | EXPECT_METRIC_EQ( | 
|  | kExpectedInterFrame, | 
|  | metrics::MinSample( | 
|  | "WebRTC.Video.Screenshare.InterframeDelay95PercentileInMs")); | 
|  | } else { | 
|  | EXPECT_METRIC_EQ( | 
|  | kExpectedInterFrame, | 
|  | metrics::MinSample("WebRTC.Video.InterframeDelay95PercentileInMs")); | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, | 
|  | MaxInterFrameDelayOnlyWithValidAverage) { | 
|  | const int kInterFrameDelayMs = 33; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | } | 
|  |  | 
|  | // `kMinRequiredSamples` samples, and thereby intervals, is required. That | 
|  | // means we're one frame short of having a valid data set. | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ(0, metrics::NumSamples("WebRTC.Video.InterframeDelayInMs")); | 
|  | EXPECT_METRIC_EQ(0, | 
|  | metrics::NumSamples("WebRTC.Video.InterframeDelayMaxInMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 0, metrics::NumSamples("WebRTC.Video.Screenshare.InterframeDelayInMs")); | 
|  | EXPECT_METRIC_EQ(0, metrics::NumSamples( | 
|  | "WebRTC.Video.Screenshare.InterframeDelayMaxInMs")); | 
|  | } | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, MaxInterFrameDelayOnlyWithPause) { | 
|  | const int kInterFrameDelayMs = 33; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | for (int i = 0; i <= kMinRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | } | 
|  |  | 
|  | // At this state, we should have a valid inter-frame delay. | 
|  | // Indicate stream paused and make a large jump in time. | 
|  | statistics_proxy_->OnStreamInactive(); | 
|  | fake_clock_.AdvanceTimeMilliseconds(5000); | 
|  |  | 
|  | // Insert two more frames. The interval during the pause should be disregarded | 
|  | // in the stats. | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | if (videocontenttypehelpers::IsScreenshare(content_type_)) { | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.Screenshare.InterframeDelayInMs")); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples( | 
|  | "WebRTC.Video.Screenshare.InterframeDelayMaxInMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | kInterFrameDelayMs, | 
|  | metrics::MinSample("WebRTC.Video.Screenshare.InterframeDelayInMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | kInterFrameDelayMs, | 
|  | metrics::MinSample("WebRTC.Video.Screenshare.InterframeDelayMaxInMs")); | 
|  | } else { | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.InterframeDelayInMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.InterframeDelayMaxInMs")); | 
|  | EXPECT_METRIC_EQ(kInterFrameDelayMs, | 
|  | metrics::MinSample("WebRTC.Video.InterframeDelayInMs")); | 
|  | EXPECT_METRIC_EQ(kInterFrameDelayMs, | 
|  | metrics::MinSample("WebRTC.Video.InterframeDelayMaxInMs")); | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, FreezesAreReported) { | 
|  | const int kInterFrameDelayMs = 33; | 
|  | const int kFreezeDelayMs = 200; | 
|  | const int kCallDurationMs = | 
|  | kMinRequiredSamples * kInterFrameDelayMs + kFreezeDelayMs; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | } | 
|  | // Add extra freeze. | 
|  | fake_clock_.AdvanceTimeMilliseconds(kFreezeDelayMs); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | const int kExpectedTimeBetweenFreezes = | 
|  | kInterFrameDelayMs * (kMinRequiredSamples - 1); | 
|  | const int kExpectedNumberFreezesPerMinute = 60 * 1000 / kCallDurationMs; | 
|  | if (videocontenttypehelpers::IsScreenshare(content_type_)) { | 
|  | EXPECT_METRIC_EQ( | 
|  | kFreezeDelayMs + kInterFrameDelayMs, | 
|  | metrics::MinSample("WebRTC.Video.Screenshare.MeanFreezeDurationMs")); | 
|  | EXPECT_METRIC_EQ(kExpectedTimeBetweenFreezes, | 
|  | metrics::MinSample( | 
|  | "WebRTC.Video.Screenshare.MeanTimeBetweenFreezesMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | kExpectedNumberFreezesPerMinute, | 
|  | metrics::MinSample("WebRTC.Video.Screenshare.NumberFreezesPerMinute")); | 
|  | } else { | 
|  | EXPECT_METRIC_EQ(kFreezeDelayMs + kInterFrameDelayMs, | 
|  | metrics::MinSample("WebRTC.Video.MeanFreezeDurationMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | kExpectedTimeBetweenFreezes, | 
|  | metrics::MinSample("WebRTC.Video.MeanTimeBetweenFreezesMs")); | 
|  | EXPECT_METRIC_EQ(kExpectedNumberFreezesPerMinute, | 
|  | metrics::MinSample("WebRTC.Video.NumberFreezesPerMinute")); | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, HarmonicFrameRateIsReported) { | 
|  | const int kFrameDurationMs = 33; | 
|  | const int kFreezeDurationMs = 200; | 
|  | const int kPauseDurationMs = 10000; | 
|  | const int kCallDurationMs = kMinRequiredSamples * kFrameDurationMs + | 
|  | kFreezeDurationMs + kPauseDurationMs; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) { | 
|  | fake_clock_.AdvanceTimeMilliseconds(kFrameDurationMs); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | } | 
|  |  | 
|  | // Freezes and pauses should be included into harmonic frame rate. | 
|  | // Add freeze. | 
|  | fake_clock_.AdvanceTimeMilliseconds(kFreezeDurationMs); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  |  | 
|  | // Add pause. | 
|  | fake_clock_.AdvanceTimeMilliseconds(kPauseDurationMs); | 
|  | statistics_proxy_->OnStreamInactive(); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | double kSumSquaredFrameDurationSecs = | 
|  | (kMinRequiredSamples - 1) * | 
|  | (kFrameDurationMs / 1000.0 * kFrameDurationMs / 1000.0); | 
|  | kSumSquaredFrameDurationSecs += | 
|  | kFreezeDurationMs / 1000.0 * kFreezeDurationMs / 1000.0; | 
|  | kSumSquaredFrameDurationSecs += | 
|  | kPauseDurationMs / 1000.0 * kPauseDurationMs / 1000.0; | 
|  | const int kExpectedHarmonicFrameRateFps = | 
|  | std::round(kCallDurationMs / (1000 * kSumSquaredFrameDurationSecs)); | 
|  | if (videocontenttypehelpers::IsScreenshare(content_type_)) { | 
|  | EXPECT_METRIC_EQ( | 
|  | kExpectedHarmonicFrameRateFps, | 
|  | metrics::MinSample("WebRTC.Video.Screenshare.HarmonicFrameRate")); | 
|  | } else { | 
|  | EXPECT_METRIC_EQ(kExpectedHarmonicFrameRateFps, | 
|  | metrics::MinSample("WebRTC.Video.HarmonicFrameRate")); | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, PausesAreIgnored) { | 
|  | const int kInterFrameDelayMs = 33; | 
|  | const int kPauseDurationMs = 10000; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | for (int i = 0; i <= kMinRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | } | 
|  | // Add a pause. | 
|  | fake_clock_.AdvanceTimeMilliseconds(kPauseDurationMs); | 
|  | statistics_proxy_->OnStreamInactive(); | 
|  |  | 
|  | // Second playback interval with triple the length. | 
|  | for (int i = 0; i <= kMinRequiredSamples * 3; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | } | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | // Average of two playback intervals. | 
|  | const int kExpectedTimeBetweenFreezes = | 
|  | kInterFrameDelayMs * kMinRequiredSamples * 2; | 
|  | if (videocontenttypehelpers::IsScreenshare(content_type_)) { | 
|  | EXPECT_METRIC_EQ(-1, metrics::MinSample( | 
|  | "WebRTC.Video.Screenshare.MeanFreezeDurationMs")); | 
|  | EXPECT_METRIC_EQ(kExpectedTimeBetweenFreezes, | 
|  | metrics::MinSample( | 
|  | "WebRTC.Video.Screenshare.MeanTimeBetweenFreezesMs")); | 
|  | } else { | 
|  | EXPECT_METRIC_EQ(-1, | 
|  | metrics::MinSample("WebRTC.Video.MeanFreezeDurationMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | kExpectedTimeBetweenFreezes, | 
|  | metrics::MinSample("WebRTC.Video.MeanTimeBetweenFreezesMs")); | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, ManyPausesAtTheBeginning) { | 
|  | const int kInterFrameDelayMs = 33; | 
|  | const int kPauseDurationMs = 10000; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | for (int i = 0; i <= kMinRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  |  | 
|  | statistics_proxy_->OnStreamInactive(); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kPauseDurationMs); | 
|  |  | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type_); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | } | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | // No freezes should be detected, as all long inter-frame delays were pauses. | 
|  | if (videocontenttypehelpers::IsScreenshare(content_type_)) { | 
|  | EXPECT_METRIC_EQ(-1, metrics::MinSample( | 
|  | "WebRTC.Video.Screenshare.MeanFreezeDurationMs")); | 
|  | } else { | 
|  | EXPECT_METRIC_EQ(-1, | 
|  | metrics::MinSample("WebRTC.Video.MeanFreezeDurationMs")); | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, TimeInHdReported) { | 
|  | const int kInterFrameDelayMs = 20; | 
|  | webrtc::VideoFrame frame_hd = CreateFrame(1280, 720); | 
|  | webrtc::VideoFrame frame_sd = CreateFrame(640, 360); | 
|  |  | 
|  | // HD frames. | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame_hd, absl::nullopt, 0, | 
|  | content_type_); | 
|  | statistics_proxy_->OnRenderedFrame(frame_hd); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | } | 
|  | // SD frames. | 
|  | for (int i = 0; i < 2 * kMinRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame_sd, absl::nullopt, 0, | 
|  | content_type_); | 
|  | statistics_proxy_->OnRenderedFrame(frame_sd); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | } | 
|  | // Extra last frame. | 
|  | statistics_proxy_->OnRenderedFrame(frame_sd); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | const int kExpectedTimeInHdPercents = 33; | 
|  | if (videocontenttypehelpers::IsScreenshare(content_type_)) { | 
|  | EXPECT_METRIC_EQ( | 
|  | kExpectedTimeInHdPercents, | 
|  | metrics::MinSample("WebRTC.Video.Screenshare.TimeInHdPercentage")); | 
|  | } else { | 
|  | EXPECT_METRIC_EQ(kExpectedTimeInHdPercents, | 
|  | metrics::MinSample("WebRTC.Video.TimeInHdPercentage")); | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, TimeInBlockyVideoReported) { | 
|  | const int kInterFrameDelayMs = 20; | 
|  | const int kHighQp = 80; | 
|  | const int kLowQp = 30; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | // High quality frames. | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, kLowQp, 0, content_type_); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | } | 
|  | // Blocky frames. | 
|  | for (int i = 0; i < 2 * kMinRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, kHighQp, 0, content_type_); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | } | 
|  | // Extra last frame. | 
|  | statistics_proxy_->OnDecodedFrame(frame, kHighQp, 0, content_type_); | 
|  | statistics_proxy_->OnRenderedFrame(frame); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | const int kExpectedTimeInHdPercents = 66; | 
|  | if (videocontenttypehelpers::IsScreenshare(content_type_)) { | 
|  | EXPECT_METRIC_EQ( | 
|  | kExpectedTimeInHdPercents, | 
|  | metrics::MinSample( | 
|  | "WebRTC.Video.Screenshare.TimeInBlockyVideoPercentage")); | 
|  | } else { | 
|  | EXPECT_METRIC_EQ( | 
|  | kExpectedTimeInHdPercents, | 
|  | metrics::MinSample("WebRTC.Video.TimeInBlockyVideoPercentage")); | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, DownscalesReported) { | 
|  | const int kInterFrameDelayMs = 2000;  // To ensure long enough call duration. | 
|  |  | 
|  | webrtc::VideoFrame frame_hd = CreateFrame(1280, 720); | 
|  | webrtc::VideoFrame frame_sd = CreateFrame(640, 360); | 
|  | webrtc::VideoFrame frame_ld = CreateFrame(320, 180); | 
|  |  | 
|  | // Call once to pass content type. | 
|  | statistics_proxy_->OnDecodedFrame(frame_hd, absl::nullopt, 0, content_type_); | 
|  |  | 
|  | statistics_proxy_->OnRenderedFrame(frame_hd); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  |  | 
|  | // Downscale. | 
|  | statistics_proxy_->OnRenderedFrame(frame_sd); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  |  | 
|  | // Downscale. | 
|  | statistics_proxy_->OnRenderedFrame(frame_ld); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  |  | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | const int kExpectedDownscales = 30;  // 2 per 4 seconds = 30 per minute. | 
|  | if (videocontenttypehelpers::IsScreenshare(content_type_)) { | 
|  | EXPECT_METRIC_EQ( | 
|  | kExpectedDownscales, | 
|  | metrics::MinSample( | 
|  | "WebRTC.Video.Screenshare.NumberResolutionDownswitchesPerMinute")); | 
|  | } else { | 
|  | EXPECT_METRIC_EQ(kExpectedDownscales, | 
|  | metrics::MinSample( | 
|  | "WebRTC.Video.NumberResolutionDownswitchesPerMinute")); | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, DecodeTimeReported) { | 
|  | const int kInterFrameDelayMs = 20; | 
|  | const int kLowQp = 30; | 
|  | const int kDecodeMs = 7; | 
|  |  | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | for (int i = 0; i < kMinRequiredSamples; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, kLowQp, kDecodeMs, content_type_); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs); | 
|  | } | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumEvents("WebRTC.Video.DecodeTimeInMs", kDecodeMs)); | 
|  | } | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithContent, | 
|  | StatsAreSlicedOnSimulcastAndExperiment) { | 
|  | const uint8_t experiment_id = 1; | 
|  | webrtc::VideoContentType content_type = content_type_; | 
|  | videocontenttypehelpers::SetExperimentId(&content_type, experiment_id); | 
|  | const int kInterFrameDelayMs1 = 30; | 
|  | const int kInterFrameDelayMs2 = 50; | 
|  | webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight); | 
|  |  | 
|  | videocontenttypehelpers::SetSimulcastId(&content_type, 1); | 
|  | for (int i = 0; i <= kMinRequiredSamples; ++i) { | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs1); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type); | 
|  | } | 
|  |  | 
|  | videocontenttypehelpers::SetSimulcastId(&content_type, 2); | 
|  | for (int i = 0; i <= kMinRequiredSamples; ++i) { | 
|  | fake_clock_.AdvanceTimeMilliseconds(kInterFrameDelayMs2); | 
|  | statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0, content_type); | 
|  | } | 
|  | statistics_proxy_->UpdateHistograms(absl::nullopt, StreamDataCounters(), | 
|  | nullptr); | 
|  |  | 
|  | if (videocontenttypehelpers::IsScreenshare(content_type)) { | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.Screenshare.InterframeDelayInMs")); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples( | 
|  | "WebRTC.Video.Screenshare.InterframeDelayMaxInMs")); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples( | 
|  | "WebRTC.Video.Screenshare.InterframeDelayInMs.S0")); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples( | 
|  | "WebRTC.Video.Screenshare.InterframeDelayMaxInMs.S0")); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples( | 
|  | "WebRTC.Video.Screenshare.InterframeDelayInMs.S1")); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples( | 
|  | "WebRTC.Video.Screenshare.InterframeDelayMaxInMs.S1")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.Screenshare.InterframeDelayInMs" | 
|  | ".ExperimentGroup0")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.Screenshare.InterframeDelayMaxInMs" | 
|  | ".ExperimentGroup0")); | 
|  | EXPECT_METRIC_EQ( | 
|  | kInterFrameDelayMs1, | 
|  | metrics::MinSample("WebRTC.Video.Screenshare.InterframeDelayInMs.S0")); | 
|  | EXPECT_METRIC_EQ( | 
|  | kInterFrameDelayMs2, | 
|  | metrics::MinSample("WebRTC.Video.Screenshare.InterframeDelayInMs.S1")); | 
|  | EXPECT_METRIC_EQ( | 
|  | (kInterFrameDelayMs1 + kInterFrameDelayMs2) / 2, | 
|  | metrics::MinSample("WebRTC.Video.Screenshare.InterframeDelayInMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | kInterFrameDelayMs2, | 
|  | metrics::MinSample("WebRTC.Video.Screenshare.InterframeDelayMaxInMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | (kInterFrameDelayMs1 + kInterFrameDelayMs2) / 2, | 
|  | metrics::MinSample( | 
|  | "WebRTC.Video.Screenshare.InterframeDelayInMs.ExperimentGroup0")); | 
|  | } else { | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.InterframeDelayInMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.InterframeDelayMaxInMs")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.InterframeDelayInMs.S0")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.InterframeDelayMaxInMs.S0")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.InterframeDelayInMs.S1")); | 
|  | EXPECT_METRIC_EQ( | 
|  | 1, metrics::NumSamples("WebRTC.Video.InterframeDelayMaxInMs.S1")); | 
|  | EXPECT_METRIC_EQ(1, metrics::NumSamples("WebRTC.Video.InterframeDelayInMs" | 
|  | ".ExperimentGroup0")); | 
|  | EXPECT_METRIC_EQ(1, | 
|  | metrics::NumSamples("WebRTC.Video.InterframeDelayMaxInMs" | 
|  | ".ExperimentGroup0")); | 
|  | EXPECT_METRIC_EQ(kInterFrameDelayMs1, | 
|  | metrics::MinSample("WebRTC.Video.InterframeDelayInMs.S0")); | 
|  | EXPECT_METRIC_EQ(kInterFrameDelayMs2, | 
|  | metrics::MinSample("WebRTC.Video.InterframeDelayInMs.S1")); | 
|  | EXPECT_METRIC_EQ((kInterFrameDelayMs1 + kInterFrameDelayMs2) / 2, | 
|  | metrics::MinSample("WebRTC.Video.InterframeDelayInMs")); | 
|  | EXPECT_METRIC_EQ(kInterFrameDelayMs2, | 
|  | metrics::MinSample("WebRTC.Video.InterframeDelayMaxInMs")); | 
|  | EXPECT_METRIC_EQ((kInterFrameDelayMs1 + kInterFrameDelayMs2) / 2, | 
|  | metrics::MinSample( | 
|  | "WebRTC.Video.InterframeDelayInMs.ExperimentGroup0")); | 
|  | } | 
|  | } | 
|  |  | 
|  | class ReceiveStatisticsProxyTestWithDecodeTimeHistograms | 
|  | : public ::testing::WithParamInterface< | 
|  | std::tuple<bool, int, int, int, VideoCodecType, std::string>>, | 
|  | public ReceiveStatisticsProxyTest { | 
|  | public: | 
|  | ReceiveStatisticsProxyTestWithDecodeTimeHistograms() | 
|  | : ReceiveStatisticsProxyTest( | 
|  | std::get<0>(GetParam()) | 
|  | ? "WebRTC-DecodeTimeHistogramsKillSwitch/Enabled/" | 
|  | : "") {} | 
|  |  | 
|  | protected: | 
|  | const std::string kUmaPrefix = "WebRTC.Video.DecodeTimePerFrameInMs."; | 
|  | const int expected_number_of_samples_ = {std::get<1>(GetParam())}; | 
|  | const int width_ = {std::get<2>(GetParam())}; | 
|  | const int height_ = {std::get<3>(GetParam())}; | 
|  | const VideoCodecType codec_type_ = {std::get<4>(GetParam())}; | 
|  | const std::string implementation_name_ = {std::get<5>(GetParam())}; | 
|  | const std::string uma_histogram_name_ = | 
|  | kUmaPrefix + (codec_type_ == kVideoCodecVP9 ? "Vp9." : "H264.") + | 
|  | (height_ == 2160 ? "4k." : "Hd.") + | 
|  | (implementation_name_.compare("ExternalDecoder") == 0 ? "Hw" : "Sw"); | 
|  | }; | 
|  |  | 
|  | TEST_P(ReceiveStatisticsProxyTestWithDecodeTimeHistograms, | 
|  | DecodeTimeHistogramsUpdated) { | 
|  | constexpr int kNumberOfFrames = 10; | 
|  | constexpr int kDecodeTimeMs = 7; | 
|  | constexpr int kFrameDurationMs = 1000 / 60; | 
|  |  | 
|  | webrtc::VideoFrame frame = CreateFrame(width_, height_); | 
|  |  | 
|  | statistics_proxy_->OnDecoderImplementationName(implementation_name_.c_str()); | 
|  | statistics_proxy_->OnPreDecode(codec_type_, /*qp=*/0); | 
|  |  | 
|  | for (int i = 0; i < kNumberOfFrames; ++i) { | 
|  | statistics_proxy_->OnDecodedFrame(frame, /*qp=*/absl::nullopt, | 
|  | kDecodeTimeMs, | 
|  | VideoContentType::UNSPECIFIED); | 
|  | fake_clock_.AdvanceTimeMilliseconds(kFrameDurationMs); | 
|  | } | 
|  |  | 
|  | EXPECT_METRIC_EQ(expected_number_of_samples_, | 
|  | metrics::NumSamples(uma_histogram_name_)); | 
|  | EXPECT_METRIC_EQ(expected_number_of_samples_, | 
|  | metrics::NumEvents(uma_histogram_name_, kDecodeTimeMs)); | 
|  | } | 
|  |  | 
|  | const auto kVp94kHw = std::make_tuple(/*killswitch=*/false, | 
|  | /*expected_number_of_samples=*/10, | 
|  | /*width=*/3840, | 
|  | /*height=*/2160, | 
|  | kVideoCodecVP9, | 
|  | /*implementation=*/"ExternalDecoder"); | 
|  | const auto kVp94kSw = std::make_tuple(/*killswitch=*/false, | 
|  | /*expected_number_of_samples=*/10, | 
|  | /*width=*/3840, | 
|  | /*height=*/2160, | 
|  | kVideoCodecVP9, | 
|  | /*implementation=*/"libvpx"); | 
|  | const auto kVp9HdHw = std::make_tuple(/*killswitch=*/false, | 
|  | /*expected_number_of_samples=*/10, | 
|  | /*width=*/1920, | 
|  | /*height=*/1080, | 
|  | kVideoCodecVP9, | 
|  | /*implementation=*/"ExternalDecoder"); | 
|  | const auto kVp9HdSw = std::make_tuple(/*killswitch=*/false, | 
|  | /*expected_number_of_samples=*/10, | 
|  | /*width=*/1920, | 
|  | /*height=*/1080, | 
|  | kVideoCodecVP9, | 
|  | /*implementation=*/"libvpx"); | 
|  | const auto kH2644kHw = std::make_tuple(/*killswitch=*/false, | 
|  | /*expected_number_of_samples=*/10, | 
|  | /*width=*/3840, | 
|  | /*height=*/2160, | 
|  | kVideoCodecH264, | 
|  | /*implementation=*/"ExternalDecoder"); | 
|  | const auto kH2644kSw = std::make_tuple(/*killswitch=*/false, | 
|  | /*expected_number_of_samples=*/10, | 
|  | /*width=*/3840, | 
|  | /*height=*/2160, | 
|  | kVideoCodecH264, | 
|  | /*implementation=*/"FFmpeg"); | 
|  | const auto kH264HdHw = std::make_tuple(/*killswitch=*/false, | 
|  | /*expected_number_of_samples=*/10, | 
|  | /*width=*/1920, | 
|  | /*height=*/1080, | 
|  | kVideoCodecH264, | 
|  | /*implementation=*/"ExternalDecoder"); | 
|  | const auto kH264HdSw = std::make_tuple(/*killswitch=*/false, | 
|  | /*expected_number_of_samples=*/10, | 
|  | /*width=*/1920, | 
|  | /*height=*/1080, | 
|  | kVideoCodecH264, | 
|  | /*implementation=*/"FFmpeg"); | 
|  |  | 
|  | INSTANTIATE_TEST_SUITE_P(AllHistogramsPopulated, | 
|  | ReceiveStatisticsProxyTestWithDecodeTimeHistograms, | 
|  | ::testing::Values(kVp94kHw, | 
|  | kVp94kSw, | 
|  | kVp9HdHw, | 
|  | kVp9HdSw, | 
|  | kH2644kHw, | 
|  | kH2644kSw, | 
|  | kH264HdHw, | 
|  | kH264HdSw)); | 
|  |  | 
|  | const auto kKillswitchDisabled = | 
|  | std::make_tuple(/*killswitch=*/false, | 
|  | /*expected_number_of_samples=*/10, | 
|  | /*width=*/1920, | 
|  | /*height=*/1080, | 
|  | kVideoCodecVP9, | 
|  | /*implementation=*/"libvpx"); | 
|  | const auto kKillswitchEnabled = | 
|  | std::make_tuple(/*killswitch=*/true, | 
|  | /*expected_number_of_samples=*/0, | 
|  | /*width=*/1920, | 
|  | /*height=*/1080, | 
|  | kVideoCodecVP9, | 
|  | /*implementation=*/"libvpx"); | 
|  |  | 
|  | INSTANTIATE_TEST_SUITE_P(KillswitchEffective, | 
|  | ReceiveStatisticsProxyTestWithDecodeTimeHistograms, | 
|  | ::testing::Values(kKillswitchDisabled, | 
|  | kKillswitchEnabled)); | 
|  |  | 
|  | }  // namespace webrtc |