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receive_statistics_proxy2_unittest.cc
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/*
* Copyright 2020 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_proxy2.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 "rtc_base/task_utils/to_queued_task.h"
#include "rtc_base/thread.h"
#include "system_wrappers/include/metrics.h"
#include "test/field_trial.h"
#include "test/gtest.h"
#include "test/run_loop.h"
#include "video/video_receive_stream2.h"
namespace webrtc {
namespace internal {
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 ReceiveStatisticsProxy2Test : public ::testing::Test {
public:
ReceiveStatisticsProxy2Test() : fake_clock_(1234), config_(GetTestConfig()) {
metrics::Reset();
statistics_proxy_.reset(
new ReceiveStatisticsProxy(&config_, &fake_clock_, loop_.task_queue()));
}
~ReceiveStatisticsProxy2Test() override { statistics_proxy_.reset(); }
protected:
// Convenience method to avoid too many explict flushes.
VideoReceiveStream::Stats FlushAndGetStats() {
loop_.Flush();
return statistics_proxy_->GetStats();
}
void FlushAndUpdateHistograms(absl::optional<int> fraction_lost,
const StreamDataCounters& rtp_stats,
const StreamDataCounters* rtx_stats) {
loop_.Flush();
statistics_proxy_->UpdateHistograms(fraction_lost, rtp_stats, rtx_stats);
}
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 CreateFrameWithRenderTime(Timestamp render_time) {
return CreateFrameWithRenderTimeMs(render_time.ms());
}
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;
}
// Return the current fake time as a Timestamp.
Timestamp Now() { return fake_clock_.CurrentTime(); }
// Creates a VideoFrameMetaData instance with a timestamp.
VideoFrameMetaData MetaData(const VideoFrame& frame, Timestamp ts) {
return VideoFrameMetaData(frame, ts);
}
// Creates a VideoFrameMetaData instance with the current fake time.
VideoFrameMetaData MetaData(const VideoFrame& frame) {
return VideoFrameMetaData(frame, Now());
}
SimulatedClock fake_clock_;
const VideoReceiveStream::Config config_;
std::unique_ptr<ReceiveStatisticsProxy> statistics_proxy_;
test::RunLoop loop_;
};
TEST_F(ReceiveStatisticsProxy2Test, 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, FlushAndGetStats().frames_decoded);
}
}
TEST_F(ReceiveStatisticsProxy2Test, 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);
}
FlushAndUpdateHistograms(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(ReceiveStatisticsProxy2Test, 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);
}
FlushAndUpdateHistograms(absl::nullopt, StreamDataCounters(), nullptr);
EXPECT_METRIC_EQ(0,
metrics::NumSamples("WebRTC.Video.DecodedFramesPerSecond"));
}
TEST_F(ReceiveStatisticsProxy2Test,
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;
loop_.Flush();
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;
loop_.Flush();
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(ReceiveStatisticsProxy2Test, 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, FlushAndGetStats().qp_sum);
statistics_proxy_->OnDecodedFrame(frame, 127u, 0,
VideoContentType::UNSPECIFIED);
EXPECT_EQ(130u, FlushAndGetStats().qp_sum);
}
TEST_F(ReceiveStatisticsProxy2Test, 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, FlushAndGetStats().total_decode_time_ms);
statistics_proxy_->OnDecodedFrame(frame, 127u, 7,
VideoContentType::UNSPECIFIED);
EXPECT_EQ(11u, FlushAndGetStats().total_decode_time_ms);
}
TEST_F(ReceiveStatisticsProxy2Test, 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(FlushAndGetStats().content_type));
statistics_proxy_->OnDecodedFrame(frame, 3u, 0,
VideoContentType::UNSPECIFIED);
EXPECT_EQ(kRealtimeString,
videocontenttypehelpers::ToString(FlushAndGetStats().content_type));
}
TEST_F(ReceiveStatisticsProxy2Test, 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,
FlushAndGetStats().total_inter_frame_delay);
EXPECT_DOUBLE_EQ(expected_total_squared_inter_frame_delay,
FlushAndGetStats().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,
FlushAndGetStats().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,
FlushAndGetStats().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,
FlushAndGetStats().total_inter_frame_delay);
EXPECT_DOUBLE_EQ(
expected_total_squared_inter_frame_delay,
statistics_proxy_->GetStats().total_squared_inter_frame_delay);
}
TEST_F(ReceiveStatisticsProxy2Test, 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, FlushAndGetStats().interframe_delay_max_ms);
fake_clock_.AdvanceTimeMilliseconds(kInterframeDelayMs1);
statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0,
VideoContentType::UNSPECIFIED);
EXPECT_EQ(kInterframeDelayMs1, FlushAndGetStats().interframe_delay_max_ms);
fake_clock_.AdvanceTimeMilliseconds(kInterframeDelayMs2);
statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0,
VideoContentType::UNSPECIFIED);
EXPECT_EQ(kInterframeDelayMs2, FlushAndGetStats().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, FlushAndGetStats().interframe_delay_max_ms);
}
TEST_F(ReceiveStatisticsProxy2Test, 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, FlushAndGetStats().interframe_delay_max_ms);
fake_clock_.AdvanceTimeMilliseconds(kInterframeDelayMs1);
statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0,
VideoContentType::UNSPECIFIED);
EXPECT_EQ(kInterframeDelayMs1, FlushAndGetStats().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, FlushAndGetStats().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, FlushAndGetStats().interframe_delay_max_ms);
}
TEST_F(ReceiveStatisticsProxy2Test, 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(MetaData(frame));
}
// Freeze.
fake_clock_.AdvanceTimeMilliseconds(kFreezeDurationMs);
statistics_proxy_->OnRenderedFrame(MetaData(frame));
stats = statistics_proxy_->GetStats();
EXPECT_EQ(1u, stats.freeze_count);
EXPECT_EQ(kFreezeDurationMs, stats.total_freezes_duration_ms);
}
TEST_F(ReceiveStatisticsProxy2Test, 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(MetaData(frame));
// Pause.
fake_clock_.AdvanceTimeMilliseconds(5432);
statistics_proxy_->OnStreamInactive();
statistics_proxy_->OnRenderedFrame(MetaData(frame));
stats = statistics_proxy_->GetStats();
EXPECT_EQ(1u, stats.pause_count);
EXPECT_EQ(5432u, stats.total_pauses_duration_ms);
}
TEST_F(ReceiveStatisticsProxy2Test, 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(MetaData(frame));
fake_clock_.AdvanceTimeMilliseconds(30);
statistics_proxy_->OnRenderedFrame(MetaData(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(ReceiveStatisticsProxy2Test, 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(MetaData(frame));
}
stats = statistics_proxy_->GetStats();
EXPECT_EQ(10 * 30u, stats.total_frames_duration_ms);
}
TEST_F(ReceiveStatisticsProxy2Test, 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(MetaData(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(ReceiveStatisticsProxy2Test, 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, FlushAndGetStats().qp_sum);
}
TEST_F(ReceiveStatisticsProxy2Test, 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, FlushAndGetStats().qp_sum);
statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0,
VideoContentType::UNSPECIFIED);
EXPECT_EQ(absl::nullopt, FlushAndGetStats().qp_sum);
}
TEST_F(ReceiveStatisticsProxy2Test, 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(MetaData(frame));
EXPECT_EQ(i, statistics_proxy_->GetStats().frames_rendered);
}
}
TEST_F(ReceiveStatisticsProxy2Test, GetStatsReportsSsrc) {
EXPECT_EQ(kRemoteSsrc, statistics_proxy_->GetStats().ssrc);
}
TEST_F(ReceiveStatisticsProxy2Test, GetStatsReportsIncomingPayloadType) {
const int kPayloadType = 111;
statistics_proxy_->OnIncomingPayloadType(kPayloadType);
loop_.Flush();
EXPECT_EQ(kPayloadType, statistics_proxy_->GetStats().current_payload_type);
}
TEST_F(ReceiveStatisticsProxy2Test, GetStatsReportsDecoderImplementationName) {
const char* kName = "decoderName";
statistics_proxy_->OnDecoderImplementationName(kName);
loop_.Flush();
EXPECT_STREQ(
kName, statistics_proxy_->GetStats().decoder_implementation_name.c_str());
}
TEST_F(ReceiveStatisticsProxy2Test, 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(ReceiveStatisticsProxy2Test, GetStatsReportsOnDroppedFrame) {
unsigned int dropped_frames = 0;
for (int i = 0; i < 10; ++i) {
statistics_proxy_->OnDroppedFrames(i);
dropped_frames += i;
}
VideoReceiveStream::Stats stats = FlushAndGetStats();
EXPECT_EQ(dropped_frames, stats.frames_dropped);
}
TEST_F(ReceiveStatisticsProxy2Test, 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);
statistics_proxy_->OnFrameBufferTimingsUpdated(
kMaxDecodeMs, kCurrentDelayMs, kTargetDelayMs, kJitterBufferMs,
kMinPlayoutDelayMs, kRenderDelayMs);
VideoReceiveStream::Stats stats = FlushAndGetStats();
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(ReceiveStatisticsProxy2Test, 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(ReceiveStatisticsProxy2Test,
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(ReceiveStatisticsProxy2Test, 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(ReceiveStatisticsProxy2Test, GetStatsReportsCName) {
const char* kName = "cName";
statistics_proxy_->OnCname(kRemoteSsrc, kName);
EXPECT_STREQ(kName, statistics_proxy_->GetStats().c_name.c_str());
}
TEST_F(ReceiveStatisticsProxy2Test, GetStatsReportsNoCNameForUnknownSsrc) {
const char* kName = "cName";
statistics_proxy_->OnCname(kRemoteSsrc + 1, kName);
EXPECT_STREQ("", statistics_proxy_->GetStats().c_name.c_str());
}
TEST_F(ReceiveStatisticsProxy2Test, 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 = FlushAndGetStats().timing_frame_info;
EXPECT_TRUE(result);
EXPECT_EQ(kExpectedRtpTimestamp, result->rtp_timestamp);
}
TEST_F(ReceiveStatisticsProxy2Test, 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 = FlushAndGetStats().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(ReceiveStatisticsProxy2Test, 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(ReceiveStatisticsProxy2Test,
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(ReceiveStatisticsProxy2Test, 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(MetaData(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(ReceiveStatisticsProxy2Test, 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(ReceiveStatisticsProxy2Test, 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, FlushAndGetStats().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(ReceiveStatisticsProxy2Test, 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, FlushAndGetStats().sync_offset_ms);
}
TEST_F(ReceiveStatisticsProxy2Test, 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);
}
FlushAndUpdateHistograms(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(ReceiveStatisticsProxy2Test, 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);
loop_.Flush();
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);
loop_.Flush();
fake_clock_.AdvanceTimeMilliseconds(kFreqOffsetProcessIntervalInMs);
// Process interval passed, max diff: 4.
statistics_proxy_->OnSyncOffsetUpdated(kVideoNtpMs, kSyncOffsetMs, kFreqKhz);
FlushAndUpdateHistograms(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(ReceiveStatisticsProxy2Test, Vp8QpHistogramIsUpdated) {
const int kQp = 22;
for (int i = 0; i < kMinRequiredSamples; ++i)
statistics_proxy_->OnPreDecode(kVideoCodecVP8, kQp);
FlushAndUpdateHistograms(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(ReceiveStatisticsProxy2Test,
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(ReceiveStatisticsProxy2Test, 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(ReceiveStatisticsProxy2Test,
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(ReceiveStatisticsProxy2Test,
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(ReceiveStatisticsProxy2Test, 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(ReceiveStatisticsProxy2Test,
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(ReceiveStatisticsProxy2Test, 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);
}
FlushAndUpdateHistograms(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(ReceiveStatisticsProxy2Test, 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(MetaData(frame));
fake_clock_.AdvanceTimeMilliseconds(1000 / kDefaultFps);
}
loop_.Flush();
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(ReceiveStatisticsProxy2Test, 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(MetaData(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(ReceiveStatisticsProxy2Test,
ReceivedFrameHistogramsAreNotUpdatedForTooFewSamples) {
for (int i = 0; i < kMinRequiredSamples - 1; ++i) {
statistics_proxy_->OnRenderedFrame(MetaData(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(ReceiveStatisticsProxy2Test, ReceivedFrameHistogramsAreUpdated) {
for (int i = 0; i < kMinRequiredSamples; ++i) {
statistics_proxy_->OnRenderedFrame(MetaData(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(ReceiveStatisticsProxy2Test, ZeroDelayReportedIfFrameNotDelayed) {
webrtc::VideoFrame frame = CreateFrame(kWidth, kHeight);
statistics_proxy_->OnDecodedFrame(frame, absl::nullopt, 0,
VideoContentType::UNSPECIFIED);
// Frame not delayed, delayed frames to render: 0%.
statistics_proxy_->OnRenderedFrame(
MetaData(CreateFrameWithRenderTime(Now())));
// Min run time has passed.
fake_clock_.AdvanceTimeMilliseconds((metrics::kMinRunTimeInSeconds * 1000));
FlushAndUpdateHistograms(absl::nullopt, StreamDataCounters(), nullptr);