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/*
* 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/field_trial.h"
#include "test/gtest.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:
ReceiveStatisticsProxyTest() : fake_clock_(1234), config_(GetTestConfig()) {}
virtual ~ReceiveStatisticsProxyTest() {}
protected:
virtual void SetUp() {
metrics::Reset();
statistics_proxy_.reset(new ReceiveStatisticsProxy(&config_, &fake_clock_));
}
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;
}
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 DecodeTimeHistogramsKillswitch {
public:
explicit DecodeTimeHistogramsKillswitch(bool disable_histograms)
: field_trial_(disable_histograms
? "WebRTC-DecodeTimeHistogramsKillSwitch/Enabled/"
: "") {}
private:
webrtc::test::ScopedFieldTrials field_trial_;
};
class ReceiveStatisticsProxyTestWithDecodeTimeHistograms
: public DecodeTimeHistogramsKillswitch,
public ::testing::WithParamInterface<
std::tuple<bool, int, int, int, VideoCodecType, std::string>>,
public ReceiveStatisticsProxyTest {
public:
ReceiveStatisticsProxyTestWithDecodeTimeHistograms()
: DecodeTimeHistogramsKillswitch(std::get<0>(GetParam())) {}
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
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