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3a034e15b41a02655a494b88e4a771896a464a93
platform-external-webrtc/pc/rtc_stats_collector_unittest.cc
Taylor Brandstetter 3a034e15b4 Split DataChannel into two separate classes for RTP and SCTP. 
Done in preparation for some threading changes that would be quite
messy if implemented with the class as-is.

This results in some code duplication, but is preferable to
one class having two completely different modes of operation.

RTP data channels are in the process of being removed anyway,
so the duplicated code won't last forever.

Bug: webrtc:9883
Change-Id: Idfd41a669b56a4bb4819572e4a264a4ffaaba9c0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/178940
Commit-Queue: Taylor <deadbeef@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31691}
2020-07-10 00:03:21 +00:00

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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 "pc/rtc_stats_collector.h"
#include <ctype.h>
#include <algorithm>
#include <initializer_list>
#include <memory>
#include <ostream>
#include <string>
#include <utility>
#include <vector>
#include "absl/memory/memory.h"
#include "absl/strings/str_replace.h"
#include "api/rtp_parameters.h"
#include "api/stats/rtc_stats_report.h"
#include "api/stats/rtcstats_objects.h"
#include "api/units/time_delta.h"
#include "modules/rtp_rtcp/include/report_block_data.h"
#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
#include "p2p/base/p2p_constants.h"
#include "p2p/base/port.h"
#include "pc/media_stream.h"
#include "pc/media_stream_track.h"
#include "pc/test/fake_data_channel_provider.h"
#include "pc/test/fake_peer_connection_for_stats.h"
#include "pc/test/mock_data_channel.h"
#include "pc/test/mock_rtp_receiver_internal.h"
#include "pc/test/mock_rtp_sender_internal.h"
#include "pc/test/rtc_stats_obtainer.h"
#include "rtc_base/checks.h"
#include "rtc_base/fake_clock.h"
#include "rtc_base/fake_ssl_identity.h"
#include "rtc_base/gunit.h"
#include "rtc_base/logging.h"
#include "rtc_base/strings/json.h"
#include "rtc_base/synchronization/mutex.h"
#include "rtc_base/time_utils.h"
using ::testing::AtLeast;
using ::testing::Invoke;
using ::testing::Return;
namespace webrtc {
// These are used by gtest code, such as if |EXPECT_EQ| fails.
void PrintTo(const RTCCertificateStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCCodecStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCDataChannelStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCIceCandidatePairStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCLocalIceCandidateStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCRemoteIceCandidateStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCPeerConnectionStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCMediaStreamStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCMediaStreamTrackStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCInboundRTPStreamStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCOutboundRTPStreamStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCRemoteInboundRtpStreamStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCAudioSourceStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCVideoSourceStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
void PrintTo(const RTCTransportStats& stats, ::std::ostream* os) {
*os << stats.ToJson();
}
namespace {
const int64_t kGetStatsReportTimeoutMs = 1000;
struct CertificateInfo {
rtc::scoped_refptr<rtc::RTCCertificate> certificate;
std::vector<std::string> ders;
std::vector<std::string> pems;
std::vector<std::string> fingerprints;
};
// Return the ID for an object of the given type in a report.
// The object must be present and be unique.
template <typename T>
std::string IdForType(const RTCStatsReport* report) {
auto stats_of_my_type = report->RTCStatsReport::GetStatsOfType<T>();
// We cannot use ASSERT here, since we're within a function.
EXPECT_EQ(1U, stats_of_my_type.size())
<< "Unexpected number of stats of this type";
if (stats_of_my_type.size() == 1) {
return stats_of_my_type[0]->id();
} else {
// Return something that is not going to be a valid stas ID.
return "Type not found";
}
}
std::unique_ptr<CertificateInfo> CreateFakeCertificateAndInfoFromDers(
const std::vector<std::string>& ders) {
RTC_CHECK(!ders.empty());
std::unique_ptr<CertificateInfo> info(new CertificateInfo());
info->ders = ders;
for (const std::string& der : ders) {
info->pems.push_back(rtc::SSLIdentity::DerToPem(
"CERTIFICATE", reinterpret_cast<const unsigned char*>(der.c_str()),
der.length()));
}
info->certificate =
rtc::RTCCertificate::Create(std::unique_ptr<rtc::FakeSSLIdentity>(
new rtc::FakeSSLIdentity(info->pems)));
// Strip header/footer and newline characters of PEM strings.
for (size_t i = 0; i < info->pems.size(); ++i) {
absl::StrReplaceAll({{"-----BEGIN CERTIFICATE-----", ""},
{"-----END CERTIFICATE-----", ""},
{"\n", ""}},
&info->pems[i]);
}
// Fingerprints for the whole certificate chain, starting with leaf
// certificate.
const rtc::SSLCertChain& chain = info->certificate->GetSSLCertificateChain();
std::unique_ptr<rtc::SSLFingerprint> fp;
for (size_t i = 0; i < chain.GetSize(); i++) {
fp = rtc::SSLFingerprint::Create("sha-1", chain.Get(i));
EXPECT_TRUE(fp);
info->fingerprints.push_back(fp->GetRfc4572Fingerprint());
}
EXPECT_EQ(info->ders.size(), info->fingerprints.size());
return info;
}
std::unique_ptr<cricket::Candidate> CreateFakeCandidate(
const std::string& hostname,
int port,
const std::string& protocol,
const rtc::AdapterType adapter_type,
const std::string& candidate_type,
uint32_t priority) {
std::unique_ptr<cricket::Candidate> candidate(new cricket::Candidate());
candidate->set_address(rtc::SocketAddress(hostname, port));
candidate->set_protocol(protocol);
candidate->set_network_type(adapter_type);
candidate->set_type(candidate_type);
candidate->set_priority(priority);
return candidate;
}
class FakeAudioTrackForStats : public MediaStreamTrack<AudioTrackInterface> {
public:
static rtc::scoped_refptr<FakeAudioTrackForStats> Create(
const std::string& id,
MediaStreamTrackInterface::TrackState state) {
rtc::scoped_refptr<FakeAudioTrackForStats> audio_track_stats(
new rtc::RefCountedObject<FakeAudioTrackForStats>(id));
audio_track_stats->set_state(state);
return audio_track_stats;
}
explicit FakeAudioTrackForStats(const std::string& id)
: MediaStreamTrack<AudioTrackInterface>(id) {}
std::string kind() const override {
return MediaStreamTrackInterface::kAudioKind;
}
webrtc::AudioSourceInterface* GetSource() const override { return nullptr; }
void AddSink(webrtc::AudioTrackSinkInterface* sink) override {}
void RemoveSink(webrtc::AudioTrackSinkInterface* sink) override {}
bool GetSignalLevel(int* level) override { return false; }
rtc::scoped_refptr<AudioProcessorInterface> GetAudioProcessor() override {
return nullptr;
}
};
class FakeVideoTrackSourceForStats : public VideoTrackSourceInterface {
public:
static rtc::scoped_refptr<FakeVideoTrackSourceForStats> Create(
int input_width,
int input_height) {
return rtc::scoped_refptr<FakeVideoTrackSourceForStats>(
new rtc::RefCountedObject<FakeVideoTrackSourceForStats>(input_width,
input_height));
}
FakeVideoTrackSourceForStats(int input_width, int input_height)
: input_width_(input_width), input_height_(input_height) {}
~FakeVideoTrackSourceForStats() override {}
// VideoTrackSourceInterface
bool is_screencast() const override { return false; }
absl::optional<bool> needs_denoising() const override { return false; }
bool GetStats(VideoTrackSourceInterface::Stats* stats) override {
stats->input_width = input_width_;
stats->input_height = input_height_;
return true;
}
// MediaSourceInterface (part of VideoTrackSourceInterface)
MediaSourceInterface::SourceState state() const override {
return MediaSourceInterface::SourceState::kLive;
}
bool remote() const override { return false; }
// NotifierInterface (part of MediaSourceInterface)
void RegisterObserver(ObserverInterface* observer) override {}
void UnregisterObserver(ObserverInterface* observer) override {}
// rtc::VideoSourceInterface<VideoFrame> (part of VideoTrackSourceInterface)
void AddOrUpdateSink(rtc::VideoSinkInterface<VideoFrame>* sink,
const rtc::VideoSinkWants& wants) override {}
void RemoveSink(rtc::VideoSinkInterface<VideoFrame>* sink) override {}
bool SupportsEncodedOutput() const override { return false; }
void GenerateKeyFrame() override {}
void AddEncodedSink(
rtc::VideoSinkInterface<RecordableEncodedFrame>* sink) override {}
void RemoveEncodedSink(
rtc::VideoSinkInterface<RecordableEncodedFrame>* sink) override {}
private:
int input_width_;
int input_height_;
};
class FakeVideoTrackForStats : public MediaStreamTrack<VideoTrackInterface> {
public:
static rtc::scoped_refptr<FakeVideoTrackForStats> Create(
const std::string& id,
MediaStreamTrackInterface::TrackState state,
rtc::scoped_refptr<VideoTrackSourceInterface> source) {
rtc::scoped_refptr<FakeVideoTrackForStats> video_track(
new rtc::RefCountedObject<FakeVideoTrackForStats>(id,
std::move(source)));
video_track->set_state(state);
return video_track;
}
FakeVideoTrackForStats(const std::string& id,
rtc::scoped_refptr<VideoTrackSourceInterface> source)
: MediaStreamTrack<VideoTrackInterface>(id), source_(source) {}
std::string kind() const override {
return MediaStreamTrackInterface::kVideoKind;
}
void AddOrUpdateSink(rtc::VideoSinkInterface<VideoFrame>* sink,
const rtc::VideoSinkWants& wants) override {}
void RemoveSink(rtc::VideoSinkInterface<VideoFrame>* sink) override {}
VideoTrackSourceInterface* GetSource() const override {
return source_.get();
}
private:
rtc::scoped_refptr<VideoTrackSourceInterface> source_;
};
rtc::scoped_refptr<MediaStreamTrackInterface> CreateFakeTrack(
cricket::MediaType media_type,
const std::string& track_id,
MediaStreamTrackInterface::TrackState track_state) {
if (media_type == cricket::MEDIA_TYPE_AUDIO) {
return FakeAudioTrackForStats::Create(track_id, track_state);
} else {
RTC_DCHECK_EQ(media_type, cricket::MEDIA_TYPE_VIDEO);
return FakeVideoTrackForStats::Create(track_id, track_state, nullptr);
}
}
rtc::scoped_refptr<MockRtpSenderInternal> CreateMockSender(
cricket::MediaType media_type,
rtc::scoped_refptr<MediaStreamTrackInterface> track,
uint32_t ssrc,
int attachment_id,
std::vector<std::string> local_stream_ids) {
RTC_DCHECK(!track ||
(track->kind() == MediaStreamTrackInterface::kAudioKind &&
media_type == cricket::MEDIA_TYPE_AUDIO) ||
(track->kind() == MediaStreamTrackInterface::kVideoKind &&
media_type == cricket::MEDIA_TYPE_VIDEO));
rtc::scoped_refptr<MockRtpSenderInternal> sender(
new rtc::RefCountedObject<MockRtpSenderInternal>());
EXPECT_CALL(*sender, track()).WillRepeatedly(Return(track));
EXPECT_CALL(*sender, ssrc()).WillRepeatedly(Return(ssrc));
EXPECT_CALL(*sender, media_type()).WillRepeatedly(Return(media_type));
EXPECT_CALL(*sender, GetParameters()).WillRepeatedly(Invoke([ssrc]() {
RtpParameters params;
params.encodings.push_back(RtpEncodingParameters());
params.encodings[0].ssrc = ssrc;
return params;
}));
EXPECT_CALL(*sender, AttachmentId()).WillRepeatedly(Return(attachment_id));
EXPECT_CALL(*sender, stream_ids()).WillRepeatedly(Return(local_stream_ids));
return sender;
}
rtc::scoped_refptr<MockRtpReceiverInternal> CreateMockReceiver(
const rtc::scoped_refptr<MediaStreamTrackInterface>& track,
uint32_t ssrc,
int attachment_id) {
rtc::scoped_refptr<MockRtpReceiverInternal> receiver(
new rtc::RefCountedObject<MockRtpReceiverInternal>());
EXPECT_CALL(*receiver, track()).WillRepeatedly(Return(track));
EXPECT_CALL(*receiver, streams())
.WillRepeatedly(
Return(std::vector<rtc::scoped_refptr<MediaStreamInterface>>({})));
EXPECT_CALL(*receiver, media_type())
.WillRepeatedly(
Return(track->kind() == MediaStreamTrackInterface::kAudioKind
? cricket::MEDIA_TYPE_AUDIO
: cricket::MEDIA_TYPE_VIDEO));
EXPECT_CALL(*receiver, GetParameters()).WillRepeatedly(Invoke([ssrc]() {
RtpParameters params;
params.encodings.push_back(RtpEncodingParameters());
params.encodings[0].ssrc = ssrc;
return params;
}));
EXPECT_CALL(*receiver, AttachmentId()).WillRepeatedly(Return(attachment_id));
return receiver;
}
class RTCStatsCollectorWrapper {
public:
explicit RTCStatsCollectorWrapper(
rtc::scoped_refptr<FakePeerConnectionForStats> pc)
: pc_(pc),
stats_collector_(
RTCStatsCollector::Create(pc, 50 * rtc::kNumMicrosecsPerMillisec)) {
}
rtc::scoped_refptr<RTCStatsCollector> stats_collector() {
return stats_collector_;
}
rtc::scoped_refptr<const RTCStatsReport> GetStatsReport() {
rtc::scoped_refptr<RTCStatsObtainer> callback = RTCStatsObtainer::Create();
stats_collector_->GetStatsReport(callback);
return WaitForReport(callback);
}
rtc::scoped_refptr<const RTCStatsReport> GetStatsReportWithSenderSelector(
rtc::scoped_refptr<RtpSenderInternal> selector) {
rtc::scoped_refptr<RTCStatsObtainer> callback = RTCStatsObtainer::Create();
stats_collector_->GetStatsReport(selector, callback);
return WaitForReport(callback);
}
rtc::scoped_refptr<const RTCStatsReport> GetStatsReportWithReceiverSelector(
rtc::scoped_refptr<RtpReceiverInternal> selector) {
rtc::scoped_refptr<RTCStatsObtainer> callback = RTCStatsObtainer::Create();
stats_collector_->GetStatsReport(selector, callback);
return WaitForReport(callback);
}
rtc::scoped_refptr<const RTCStatsReport> GetFreshStatsReport() {
stats_collector_->ClearCachedStatsReport();
return GetStatsReport();
}
rtc::scoped_refptr<MockRtpSenderInternal> SetupLocalTrackAndSender(
cricket::MediaType media_type,
const std::string& track_id,
uint32_t ssrc,
bool add_stream,
int attachment_id) {
rtc::scoped_refptr<MediaStream> local_stream;
if (add_stream) {
local_stream = MediaStream::Create("LocalStreamId");
pc_->mutable_local_streams()->AddStream(local_stream);
}
rtc::scoped_refptr<MediaStreamTrackInterface> track;
if (media_type == cricket::MEDIA_TYPE_AUDIO) {
track = CreateFakeTrack(media_type, track_id,
MediaStreamTrackInterface::kLive);
if (add_stream) {
local_stream->AddTrack(static_cast<AudioTrackInterface*>(track.get()));
}
} else {
track = CreateFakeTrack(media_type, track_id,
MediaStreamTrackInterface::kLive);
if (add_stream) {
local_stream->AddTrack(static_cast<VideoTrackInterface*>(track.get()));
}
}
rtc::scoped_refptr<MockRtpSenderInternal> sender =
CreateMockSender(media_type, track, ssrc, attachment_id, {});
pc_->AddSender(sender);
return sender;
}
rtc::scoped_refptr<MockRtpReceiverInternal> SetupRemoteTrackAndReceiver(
cricket::MediaType media_type,
const std::string& track_id,
const std::string& stream_id,
uint32_t ssrc) {
rtc::scoped_refptr<MediaStream> remote_stream =
MediaStream::Create(stream_id);
pc_->mutable_remote_streams()->AddStream(remote_stream);
rtc::scoped_refptr<MediaStreamTrackInterface> track;
if (media_type == cricket::MEDIA_TYPE_AUDIO) {
track = CreateFakeTrack(media_type, track_id,
MediaStreamTrackInterface::kLive);
remote_stream->AddTrack(static_cast<AudioTrackInterface*>(track.get()));
} else {
track = CreateFakeTrack(media_type, track_id,
MediaStreamTrackInterface::kLive);
remote_stream->AddTrack(static_cast<VideoTrackInterface*>(track.get()));
}
rtc::scoped_refptr<MockRtpReceiverInternal> receiver =
CreateMockReceiver(track, ssrc, 62);
EXPECT_CALL(*receiver, streams())
.WillRepeatedly(
Return(std::vector<rtc::scoped_refptr<MediaStreamInterface>>(
{remote_stream})));
pc_->AddReceiver(receiver);
return receiver;
}
// Attaches tracks to peer connections by configuring RTP senders and RTP
// receivers according to the tracks' pairings with
// |[Voice/Video][Sender/Receiver]Info| and their SSRCs. Local tracks can be
// associated with multiple |[Voice/Video]SenderInfo|s, remote tracks can only
// be associated with one |[Voice/Video]ReceiverInfo|.
// Senders get assigned attachment ID "ssrc + 10".
void CreateMockRtpSendersReceiversAndChannels(
std::initializer_list<
std::pair<MediaStreamTrackInterface*, cricket::VoiceSenderInfo>>
local_audio_track_info_pairs,
std::initializer_list<
std::pair<MediaStreamTrackInterface*, cricket::VoiceReceiverInfo>>
remote_audio_track_info_pairs,
std::initializer_list<
std::pair<MediaStreamTrackInterface*, cricket::VideoSenderInfo>>
local_video_track_info_pairs,
std::initializer_list<
std::pair<MediaStreamTrackInterface*, cricket::VideoReceiverInfo>>
remote_video_track_info_pairs,
std::vector<std::string> local_stream_ids,
std::vector<rtc::scoped_refptr<MediaStreamInterface>> remote_streams) {
cricket::VoiceMediaInfo voice_media_info;
cricket::VideoMediaInfo video_media_info;
// Local audio tracks and voice sender infos
for (auto& pair : local_audio_track_info_pairs) {
MediaStreamTrackInterface* local_audio_track = pair.first;
const cricket::VoiceSenderInfo& voice_sender_info = pair.second;
RTC_DCHECK_EQ(local_audio_track->kind(),
MediaStreamTrackInterface::kAudioKind);
voice_media_info.senders.push_back(voice_sender_info);
rtc::scoped_refptr<MockRtpSenderInternal> rtp_sender = CreateMockSender(
cricket::MEDIA_TYPE_AUDIO,
rtc::scoped_refptr<MediaStreamTrackInterface>(local_audio_track),
voice_sender_info.local_stats[0].ssrc,
voice_sender_info.local_stats[0].ssrc + 10, local_stream_ids);
pc_->AddSender(rtp_sender);
}
// Remote audio tracks and voice receiver infos
for (auto& pair : remote_audio_track_info_pairs) {
MediaStreamTrackInterface* remote_audio_track = pair.first;
const cricket::VoiceReceiverInfo& voice_receiver_info = pair.second;
RTC_DCHECK_EQ(remote_audio_track->kind(),
MediaStreamTrackInterface::kAudioKind);
voice_media_info.receivers.push_back(voice_receiver_info);
rtc::scoped_refptr<MockRtpReceiverInternal> rtp_receiver =
CreateMockReceiver(
rtc::scoped_refptr<MediaStreamTrackInterface>(remote_audio_track),
voice_receiver_info.local_stats[0].ssrc,
voice_receiver_info.local_stats[0].ssrc + 10);
EXPECT_CALL(*rtp_receiver, streams())
.WillRepeatedly(Return(remote_streams));
pc_->AddReceiver(rtp_receiver);
}
// Local video tracks and video sender infos
for (auto& pair : local_video_track_info_pairs) {
MediaStreamTrackInterface* local_video_track = pair.first;
const cricket::VideoSenderInfo& video_sender_info = pair.second;
RTC_DCHECK_EQ(local_video_track->kind(),
MediaStreamTrackInterface::kVideoKind);
video_media_info.senders.push_back(video_sender_info);
video_media_info.aggregated_senders.push_back(video_sender_info);
rtc::scoped_refptr<MockRtpSenderInternal> rtp_sender = CreateMockSender(
cricket::MEDIA_TYPE_VIDEO,
rtc::scoped_refptr<MediaStreamTrackInterface>(local_video_track),
video_sender_info.local_stats[0].ssrc,
video_sender_info.local_stats[0].ssrc + 10, local_stream_ids);
pc_->AddSender(rtp_sender);
}
// Remote video tracks and video receiver infos
for (auto& pair : remote_video_track_info_pairs) {
MediaStreamTrackInterface* remote_video_track = pair.first;
const cricket::VideoReceiverInfo& video_receiver_info = pair.second;
RTC_DCHECK_EQ(remote_video_track->kind(),
MediaStreamTrackInterface::kVideoKind);
video_media_info.receivers.push_back(video_receiver_info);
rtc::scoped_refptr<MockRtpReceiverInternal> rtp_receiver =
CreateMockReceiver(
rtc::scoped_refptr<MediaStreamTrackInterface>(remote_video_track),
video_receiver_info.local_stats[0].ssrc,
video_receiver_info.local_stats[0].ssrc + 10);
EXPECT_CALL(*rtp_receiver, streams())
.WillRepeatedly(Return(remote_streams));
pc_->AddReceiver(rtp_receiver);
}
auto* voice_media_channel = pc_->AddVoiceChannel("audio", "transport");
voice_media_channel->SetStats(voice_media_info);
auto* video_media_channel = pc_->AddVideoChannel("video", "transport");
video_media_channel->SetStats(video_media_info);
}
private:
rtc::scoped_refptr<const RTCStatsReport> WaitForReport(
rtc::scoped_refptr<RTCStatsObtainer> callback) {
EXPECT_TRUE_WAIT(callback->report(), kGetStatsReportTimeoutMs);
int64_t after = rtc::TimeUTCMicros();
for (const RTCStats& stats : *callback->report()) {
EXPECT_LE(stats.timestamp_us(), after);
}
return callback->report();
}
rtc::scoped_refptr<FakePeerConnectionForStats> pc_;
rtc::scoped_refptr<RTCStatsCollector> stats_collector_;
};
class RTCStatsCollectorTest : public ::testing::Test {
public:
RTCStatsCollectorTest()
: pc_(new rtc::RefCountedObject<FakePeerConnectionForStats>()),
stats_(new RTCStatsCollectorWrapper(pc_)) {}
void ExpectReportContainsCertificateInfo(
const rtc::scoped_refptr<const RTCStatsReport>& report,
const CertificateInfo& certinfo) {
for (size_t i = 0; i < certinfo.fingerprints.size(); ++i) {
RTCCertificateStats expected_certificate_stats(
"RTCCertificate_" + certinfo.fingerprints[i], report->timestamp_us());
expected_certificate_stats.fingerprint = certinfo.fingerprints[i];
expected_certificate_stats.fingerprint_algorithm = "sha-1";
expected_certificate_stats.base64_certificate = certinfo.pems[i];
if (i + 1 < certinfo.fingerprints.size()) {
expected_certificate_stats.issuer_certificate_id =
"RTCCertificate_" + certinfo.fingerprints[i + 1];
}
ASSERT_TRUE(report->Get(expected_certificate_stats.id()));
EXPECT_EQ(expected_certificate_stats,
report->Get(expected_certificate_stats.id())
->cast_to<RTCCertificateStats>());
}
}
struct ExampleStatsGraph {
rtc::scoped_refptr<RtpSenderInternal> sender;
rtc::scoped_refptr<RtpReceiverInternal> receiver;
rtc::scoped_refptr<const RTCStatsReport> full_report;
std::string send_codec_id;
std::string recv_codec_id;
std::string outbound_rtp_id;
std::string inbound_rtp_id;
std::string transport_id;
std::string sender_track_id;
std::string receiver_track_id;
std::string remote_stream_id;
std::string peer_connection_id;
std::string media_source_id;
};
// Sets up the example stats graph (see ASCII art below) used for testing the
// stats selection algorithm,
// https://w3c.github.io/webrtc-pc/#dfn-stats-selection-algorithm.
// These tests test the integration of the stats traversal algorithm inside of
// RTCStatsCollector. See rtcstatstraveral_unittest.cc for more stats
// traversal tests.
ExampleStatsGraph SetupExampleStatsGraphForSelectorTests() {
ExampleStatsGraph graph;
// codec (send)
graph.send_codec_id = "RTCCodec_VideoMid_Outbound_1";
cricket::VideoMediaInfo video_media_info;
RtpCodecParameters send_codec;
send_codec.payload_type = 1;
send_codec.clock_rate = 0;
video_media_info.send_codecs.insert(
std::make_pair(send_codec.payload_type, send_codec));
// codec (recv)
graph.recv_codec_id = "RTCCodec_VideoMid_Inbound_2";
RtpCodecParameters recv_codec;
recv_codec.payload_type = 2;
recv_codec.clock_rate = 0;
video_media_info.receive_codecs.insert(
std::make_pair(recv_codec.payload_type, recv_codec));
// outbound-rtp
graph.outbound_rtp_id = "RTCOutboundRTPVideoStream_3";
video_media_info.senders.push_back(cricket::VideoSenderInfo());
video_media_info.senders[0].local_stats.push_back(
cricket::SsrcSenderInfo());
video_media_info.senders[0].local_stats[0].ssrc = 3;
video_media_info.senders[0].codec_payload_type = send_codec.payload_type;
video_media_info.aggregated_senders.push_back(video_media_info.senders[0]);
// inbound-rtp
graph.inbound_rtp_id = "RTCInboundRTPVideoStream_4";
video_media_info.receivers.push_back(cricket::VideoReceiverInfo());
video_media_info.receivers[0].local_stats.push_back(
cricket::SsrcReceiverInfo());
video_media_info.receivers[0].local_stats[0].ssrc = 4;
video_media_info.receivers[0].codec_payload_type = recv_codec.payload_type;
// transport
graph.transport_id = "RTCTransport_TransportName_1";
auto* video_media_channel =
pc_->AddVideoChannel("VideoMid", "TransportName");
video_media_channel->SetStats(video_media_info);
// track (sender)
graph.sender = stats_->SetupLocalTrackAndSender(
cricket::MEDIA_TYPE_VIDEO, "LocalVideoTrackID", 3, false, 50);
graph.sender_track_id = "RTCMediaStreamTrack_sender_" +
rtc::ToString(graph.sender->AttachmentId());
// track (receiver) and stream (remote stream)
graph.receiver = stats_->SetupRemoteTrackAndReceiver(
cricket::MEDIA_TYPE_VIDEO, "RemoteVideoTrackID", "RemoteStreamId", 4);
graph.receiver_track_id = "RTCMediaStreamTrack_receiver_" +
rtc::ToString(graph.receiver->AttachmentId());
graph.remote_stream_id = "RTCMediaStream_RemoteStreamId";
// peer-connection
graph.peer_connection_id = "RTCPeerConnection";
// media-source (kind: video)
graph.media_source_id =
"RTCVideoSource_" + rtc::ToString(graph.sender->AttachmentId());
// Expected stats graph:
//
// +--- track (sender) stream (remote stream) ---> track (receiver)
// | ^ ^
// | | |
// | +--------- outbound-rtp inbound-rtp ---------------+
// | | | | | |
// | | v v v v
// | | codec (send) transport codec (recv) peer-connection
// v v
// media-source
// Verify the stats graph is set up correctly.
graph.full_report = stats_->GetStatsReport();
EXPECT_EQ(graph.full_report->size(), 10u);
EXPECT_TRUE(graph.full_report->Get(graph.send_codec_id));
EXPECT_TRUE(graph.full_report->Get(graph.recv_codec_id));
EXPECT_TRUE(graph.full_report->Get(graph.outbound_rtp_id));
EXPECT_TRUE(graph.full_report->Get(graph.inbound_rtp_id));
EXPECT_TRUE(graph.full_report->Get(graph.transport_id));
EXPECT_TRUE(graph.full_report->Get(graph.sender_track_id));
EXPECT_TRUE(graph.full_report->Get(graph.receiver_track_id));
EXPECT_TRUE(graph.full_report->Get(graph.remote_stream_id));
EXPECT_TRUE(graph.full_report->Get(graph.peer_connection_id));
EXPECT_TRUE(graph.full_report->Get(graph.media_source_id));
const auto& sender_track = graph.full_report->Get(graph.sender_track_id)
->cast_to<RTCMediaStreamTrackStats>();
EXPECT_EQ(*sender_track.media_source_id, graph.media_source_id);
const auto& outbound_rtp = graph.full_report->Get(graph.outbound_rtp_id)
->cast_to<RTCOutboundRTPStreamStats>();
EXPECT_EQ(*outbound_rtp.media_source_id, graph.media_source_id);
EXPECT_EQ(*outbound_rtp.codec_id, graph.send_codec_id);
EXPECT_EQ(*outbound_rtp.track_id, graph.sender_track_id);
EXPECT_EQ(*outbound_rtp.transport_id, graph.transport_id);
const auto& inbound_rtp = graph.full_report->Get(graph.inbound_rtp_id)
->cast_to<RTCInboundRTPStreamStats>();
EXPECT_EQ(*inbound_rtp.codec_id, graph.recv_codec_id);
EXPECT_EQ(*inbound_rtp.track_id, graph.receiver_track_id);
EXPECT_EQ(*inbound_rtp.transport_id, graph.transport_id);
return graph;
}
protected:
rtc::ScopedFakeClock fake_clock_;
rtc::scoped_refptr<FakePeerConnectionForStats> pc_;
std::unique_ptr<RTCStatsCollectorWrapper> stats_;
};
TEST_F(RTCStatsCollectorTest, SingleCallback) {
rtc::scoped_refptr<const RTCStatsReport> result;
stats_->stats_collector()->GetStatsReport(RTCStatsObtainer::Create(&result));
EXPECT_TRUE_WAIT(result, kGetStatsReportTimeoutMs);
}
TEST_F(RTCStatsCollectorTest, MultipleCallbacks) {
rtc::scoped_refptr<const RTCStatsReport> a, b, c;
stats_->stats_collector()->GetStatsReport(RTCStatsObtainer::Create(&a));
stats_->stats_collector()->GetStatsReport(RTCStatsObtainer::Create(&b));
stats_->stats_collector()->GetStatsReport(RTCStatsObtainer::Create(&c));
EXPECT_TRUE_WAIT(a, kGetStatsReportTimeoutMs);
EXPECT_TRUE_WAIT(b, kGetStatsReportTimeoutMs);
EXPECT_TRUE_WAIT(c, kGetStatsReportTimeoutMs);
EXPECT_EQ(a.get(), b.get());
EXPECT_EQ(b.get(), c.get());
}
TEST_F(RTCStatsCollectorTest, CachedStatsReports) {
// Caching should ensure |a| and |b| are the same report.
rtc::scoped_refptr<const RTCStatsReport> a = stats_->GetStatsReport();
rtc::scoped_refptr<const RTCStatsReport> b = stats_->GetStatsReport();
EXPECT_EQ(a.get(), b.get());
// Invalidate cache by clearing it.
stats_->stats_collector()->ClearCachedStatsReport();
rtc::scoped_refptr<const RTCStatsReport> c = stats_->GetStatsReport();
EXPECT_NE(b.get(), c.get());
// Invalidate cache by advancing time.
fake_clock_.AdvanceTime(TimeDelta::Millis(51));
rtc::scoped_refptr<const RTCStatsReport> d = stats_->GetStatsReport();
EXPECT_TRUE(d);
EXPECT_NE(c.get(), d.get());
}
TEST_F(RTCStatsCollectorTest, MultipleCallbacksWithInvalidatedCacheInBetween) {
rtc::scoped_refptr<const RTCStatsReport> a, b, c;
stats_->stats_collector()->GetStatsReport(RTCStatsObtainer::Create(&a));
stats_->stats_collector()->GetStatsReport(RTCStatsObtainer::Create(&b));
// Cache is invalidated after 50 ms.
fake_clock_.AdvanceTime(TimeDelta::Millis(51));
stats_->stats_collector()->GetStatsReport(RTCStatsObtainer::Create(&c));
EXPECT_TRUE_WAIT(a, kGetStatsReportTimeoutMs);
EXPECT_TRUE_WAIT(b, kGetStatsReportTimeoutMs);
EXPECT_TRUE_WAIT(c, kGetStatsReportTimeoutMs);
EXPECT_EQ(a.get(), b.get());
// The act of doing |AdvanceTime| processes all messages. If this was not the
// case we might not require |c| to be fresher than |b|.
EXPECT_NE(c.get(), b.get());
}
TEST_F(RTCStatsCollectorTest, ToJsonProducesParseableJson) {
ExampleStatsGraph graph = SetupExampleStatsGraphForSelectorTests();
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
std::string json_format = report->ToJson();
Json::Reader reader;
Json::Value json_value;
ASSERT_TRUE(reader.parse(json_format, json_value));
// A very brief sanity check on the result.
EXPECT_EQ(report->size(), json_value.size());
}
TEST_F(RTCStatsCollectorTest, CollectRTCCertificateStatsSingle) {
const char kTransportName[] = "transport";
pc_->AddVoiceChannel("audio", kTransportName);
std::unique_ptr<CertificateInfo> local_certinfo =
CreateFakeCertificateAndInfoFromDers(
std::vector<std::string>({"(local) single certificate"}));
pc_->SetLocalCertificate(kTransportName, local_certinfo->certificate);
std::unique_ptr<CertificateInfo> remote_certinfo =
CreateFakeCertificateAndInfoFromDers(
std::vector<std::string>({"(remote) single certificate"}));
pc_->SetRemoteCertChain(
kTransportName,
remote_certinfo->certificate->GetSSLCertificateChain().Clone());
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
ExpectReportContainsCertificateInfo(report, *local_certinfo);
ExpectReportContainsCertificateInfo(report, *remote_certinfo);
}
TEST_F(RTCStatsCollectorTest, CollectRTCCodecStats) {
// Audio
cricket::VoiceMediaInfo voice_media_info;
RtpCodecParameters inbound_audio_codec;
inbound_audio_codec.payload_type = 1;
inbound_audio_codec.kind = cricket::MEDIA_TYPE_AUDIO;
inbound_audio_codec.name = "opus";
inbound_audio_codec.clock_rate = 1337;
inbound_audio_codec.num_channels = 1;
inbound_audio_codec.parameters = {{"minptime", "10"}, {"useinbandfec", "1"}};
voice_media_info.receive_codecs.insert(
std::make_pair(inbound_audio_codec.payload_type, inbound_audio_codec));
RtpCodecParameters outbound_audio_codec;
outbound_audio_codec.payload_type = 2;
outbound_audio_codec.kind = cricket::MEDIA_TYPE_AUDIO;
outbound_audio_codec.name = "isac";
outbound_audio_codec.clock_rate = 1338;
outbound_audio_codec.num_channels = 2;
voice_media_info.send_codecs.insert(
std::make_pair(outbound_audio_codec.payload_type, outbound_audio_codec));
auto* voice_media_channel = pc_->AddVoiceChannel("AudioMid", "TransportName");
voice_media_channel->SetStats(voice_media_info);
// Video
cricket::VideoMediaInfo video_media_info;
RtpCodecParameters inbound_video_codec;
inbound_video_codec.payload_type = 3;
inbound_video_codec.kind = cricket::MEDIA_TYPE_VIDEO;
inbound_video_codec.name = "H264";
inbound_video_codec.clock_rate = 1339;
inbound_video_codec.parameters = {{"level-asymmetry-allowed", "1"},
{"packetization-mode", "1"},
{"profile-level-id", "42001f"}};
video_media_info.receive_codecs.insert(
std::make_pair(inbound_video_codec.payload_type, inbound_video_codec));
RtpCodecParameters outbound_video_codec;
outbound_video_codec.payload_type = 4;
outbound_video_codec.kind = cricket::MEDIA_TYPE_VIDEO;
outbound_video_codec.name = "VP8";
outbound_video_codec.clock_rate = 1340;
video_media_info.send_codecs.insert(
std::make_pair(outbound_video_codec.payload_type, outbound_video_codec));
auto* video_media_channel = pc_->AddVideoChannel("VideoMid", "TransportName");
video_media_channel->SetStats(video_media_info);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
RTCCodecStats expected_inbound_audio_codec("RTCCodec_AudioMid_Inbound_1",
report->timestamp_us());
expected_inbound_audio_codec.payload_type = 1;
expected_inbound_audio_codec.mime_type = "audio/opus";
expected_inbound_audio_codec.clock_rate = 1337;
expected_inbound_audio_codec.channels = 1;
expected_inbound_audio_codec.sdp_fmtp_line = "minptime=10;useinbandfec=1";
RTCCodecStats expected_outbound_audio_codec("RTCCodec_AudioMid_Outbound_2",
report->timestamp_us());
expected_outbound_audio_codec.payload_type = 2;
expected_outbound_audio_codec.mime_type = "audio/isac";
expected_outbound_audio_codec.clock_rate = 1338;
expected_outbound_audio_codec.channels = 2;
RTCCodecStats expected_inbound_video_codec("RTCCodec_VideoMid_Inbound_3",
report->timestamp_us());
expected_inbound_video_codec.payload_type = 3;
expected_inbound_video_codec.mime_type = "video/H264";
expected_inbound_video_codec.clock_rate = 1339;
expected_inbound_video_codec.sdp_fmtp_line =
"level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42001f";
RTCCodecStats expected_outbound_video_codec("RTCCodec_VideoMid_Outbound_4",
report->timestamp_us());
expected_outbound_video_codec.payload_type = 4;
expected_outbound_video_codec.mime_type = "video/VP8";
expected_outbound_video_codec.clock_rate = 1340;
ASSERT_TRUE(report->Get(expected_inbound_audio_codec.id()));
EXPECT_EQ(
expected_inbound_audio_codec,
report->Get(expected_inbound_audio_codec.id())->cast_to<RTCCodecStats>());
ASSERT_TRUE(report->Get(expected_outbound_audio_codec.id()));
EXPECT_EQ(expected_outbound_audio_codec,
report->Get(expected_outbound_audio_codec.id())
->cast_to<RTCCodecStats>());
ASSERT_TRUE(report->Get(expected_inbound_video_codec.id()));
EXPECT_EQ(
expected_inbound_video_codec,
report->Get(expected_inbound_video_codec.id())->cast_to<RTCCodecStats>());
ASSERT_TRUE(report->Get(expected_outbound_video_codec.id()));
EXPECT_EQ(expected_outbound_video_codec,
report->Get(expected_outbound_video_codec.id())
->cast_to<RTCCodecStats>());
}
TEST_F(RTCStatsCollectorTest, CollectRTCCertificateStatsMultiple) {
const char kAudioTransport[] = "audio";
const char kVideoTransport[] = "video";
pc_->AddVoiceChannel("audio", kAudioTransport);
std::unique_ptr<CertificateInfo> audio_local_certinfo =
CreateFakeCertificateAndInfoFromDers(
std::vector<std::string>({"(local) audio"}));
pc_->SetLocalCertificate(kAudioTransport, audio_local_certinfo->certificate);
std::unique_ptr<CertificateInfo> audio_remote_certinfo =
CreateFakeCertificateAndInfoFromDers(
std::vector<std::string>({"(remote) audio"}));
pc_->SetRemoteCertChain(
kAudioTransport,
audio_remote_certinfo->certificate->GetSSLCertificateChain().Clone());
pc_->AddVideoChannel("video", kVideoTransport);
std::unique_ptr<CertificateInfo> video_local_certinfo =
CreateFakeCertificateAndInfoFromDers(
std::vector<std::string>({"(local) video"}));
pc_->SetLocalCertificate(kVideoTransport, video_local_certinfo->certificate);
std::unique_ptr<CertificateInfo> video_remote_certinfo =
CreateFakeCertificateAndInfoFromDers(
std::vector<std::string>({"(remote) video"}));
pc_->SetRemoteCertChain(
kVideoTransport,
video_remote_certinfo->certificate->GetSSLCertificateChain().Clone());
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
ExpectReportContainsCertificateInfo(report, *audio_local_certinfo);
ExpectReportContainsCertificateInfo(report, *audio_remote_certinfo);
ExpectReportContainsCertificateInfo(report, *video_local_certinfo);
ExpectReportContainsCertificateInfo(report, *video_remote_certinfo);
}
TEST_F(RTCStatsCollectorTest, CollectRTCCertificateStatsChain) {
const char kTransportName[] = "transport";
pc_->AddVoiceChannel("audio", kTransportName);
std::unique_ptr<CertificateInfo> local_certinfo =
CreateFakeCertificateAndInfoFromDers(
{"(local) this", "(local) is", "(local) a", "(local) chain"});
pc_->SetLocalCertificate(kTransportName, local_certinfo->certificate);
std::unique_ptr<CertificateInfo> remote_certinfo =
CreateFakeCertificateAndInfoFromDers({"(remote) this", "(remote) is",
"(remote) another",
"(remote) chain"});
pc_->SetRemoteCertChain(
kTransportName,
remote_certinfo->certificate->GetSSLCertificateChain().Clone());
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
ExpectReportContainsCertificateInfo(report, *local_certinfo);
ExpectReportContainsCertificateInfo(report, *remote_certinfo);
}
TEST_F(RTCStatsCollectorTest, CollectTwoRTCDataChannelStatsWithPendingId) {
pc_->AddSctpDataChannel(
new MockSctpDataChannel(/*id=*/-1, DataChannelInterface::kConnecting));
pc_->AddSctpDataChannel(
new MockSctpDataChannel(/*id=*/-1, DataChannelInterface::kConnecting));
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
}
TEST_F(RTCStatsCollectorTest, CollectRTCDataChannelStats) {
// Note: The test assumes data channel IDs are predictable.
// This is not a safe assumption, but in order to make it work for
// the test, we reset the ID allocator at test start.
SctpDataChannel::ResetInternalIdAllocatorForTesting(-1);
pc_->AddSctpDataChannel(new MockSctpDataChannel(
0, "MockSctpDataChannel0", DataChannelInterface::kConnecting, "udp", 1, 2,
3, 4));
RTCDataChannelStats expected_data_channel0("RTCDataChannel_0", 0);
expected_data_channel0.label = "MockSctpDataChannel0";
expected_data_channel0.protocol = "udp";
expected_data_channel0.data_channel_identifier = 0;
expected_data_channel0.state = "connecting";
expected_data_channel0.messages_sent = 1;
expected_data_channel0.bytes_sent = 2;
expected_data_channel0.messages_received = 3;
expected_data_channel0.bytes_received = 4;
pc_->AddSctpDataChannel(new MockSctpDataChannel(1, "MockSctpDataChannel1",
DataChannelInterface::kOpen,
"tcp", 5, 6, 7, 8));
RTCDataChannelStats expected_data_channel1("RTCDataChannel_1", 0);
expected_data_channel1.label = "MockSctpDataChannel1";
expected_data_channel1.protocol = "tcp";
expected_data_channel1.data_channel_identifier = 1;
expected_data_channel1.state = "open";
expected_data_channel1.messages_sent = 5;
expected_data_channel1.bytes_sent = 6;
expected_data_channel1.messages_received = 7;
expected_data_channel1.bytes_received = 8;
pc_->AddSctpDataChannel(new MockSctpDataChannel(
2, "MockSctpDataChannel2", DataChannelInterface::kClosing, "udp", 9, 10,
11, 12));
RTCDataChannelStats expected_data_channel2("RTCDataChannel_2", 0);
expected_data_channel2.label = "MockSctpDataChannel2";
expected_data_channel2.protocol = "udp";
expected_data_channel2.data_channel_identifier = 2;
expected_data_channel2.state = "closing";
expected_data_channel2.messages_sent = 9;
expected_data_channel2.bytes_sent = 10;
expected_data_channel2.messages_received = 11;
expected_data_channel2.bytes_received = 12;
pc_->AddSctpDataChannel(new MockSctpDataChannel(3, "MockSctpDataChannel3",
DataChannelInterface::kClosed,
"tcp", 13, 14, 15, 16));
RTCDataChannelStats expected_data_channel3("RTCDataChannel_3", 0);
expected_data_channel3.label = "MockSctpDataChannel3";
expected_data_channel3.protocol = "tcp";
expected_data_channel3.data_channel_identifier = 3;
expected_data_channel3.state = "closed";
expected_data_channel3.messages_sent = 13;
expected_data_channel3.bytes_sent = 14;
expected_data_channel3.messages_received = 15;
expected_data_channel3.bytes_received = 16;
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
ASSERT_TRUE(report->Get(expected_data_channel0.id()));
EXPECT_EQ(
expected_data_channel0,
report->Get(expected_data_channel0.id())->cast_to<RTCDataChannelStats>());
ASSERT_TRUE(report->Get(expected_data_channel1.id()));
EXPECT_EQ(
expected_data_channel1,
report->Get(expected_data_channel1.id())->cast_to<RTCDataChannelStats>());
ASSERT_TRUE(report->Get(expected_data_channel2.id()));
EXPECT_EQ(
expected_data_channel2,
report->Get(expected_data_channel2.id())->cast_to<RTCDataChannelStats>());
ASSERT_TRUE(report->Get(expected_data_channel3.id()));
EXPECT_EQ(
expected_data_channel3,
report->Get(expected_data_channel3.id())->cast_to<RTCDataChannelStats>());
}
TEST_F(RTCStatsCollectorTest, CollectRTCIceCandidateStats) {
// Candidates in the first transport stats.
std::unique_ptr<cricket::Candidate> a_local_host =
CreateFakeCandidate("1.2.3.4", 5, "a_local_host's protocol",
rtc::ADAPTER_TYPE_VPN, cricket::LOCAL_PORT_TYPE, 0);
RTCLocalIceCandidateStats expected_a_local_host(
"RTCIceCandidate_" + a_local_host->id(), 0);
expected_a_local_host.transport_id = "RTCTransport_a_0";
expected_a_local_host.network_type = "vpn";
expected_a_local_host.ip = "1.2.3.4";
expected_a_local_host.port = 5;
expected_a_local_host.protocol = "a_local_host's protocol";
expected_a_local_host.candidate_type = "host";
expected_a_local_host.priority = 0;
EXPECT_FALSE(*expected_a_local_host.is_remote);
std::unique_ptr<cricket::Candidate> a_remote_srflx = CreateFakeCandidate(
"6.7.8.9", 10, "remote_srflx's protocol", rtc::ADAPTER_TYPE_UNKNOWN,
cricket::STUN_PORT_TYPE, 1);
RTCRemoteIceCandidateStats expected_a_remote_srflx(
"RTCIceCandidate_" + a_remote_srflx->id(), 0);
expected_a_remote_srflx.transport_id = "RTCTransport_a_0";
expected_a_remote_srflx.ip = "6.7.8.9";
expected_a_remote_srflx.port = 10;
expected_a_remote_srflx.protocol = "remote_srflx's protocol";
expected_a_remote_srflx.candidate_type = "srflx";
expected_a_remote_srflx.priority = 1;
expected_a_remote_srflx.deleted = false;
EXPECT_TRUE(*expected_a_remote_srflx.is_remote);
std::unique_ptr<cricket::Candidate> a_local_prflx = CreateFakeCandidate(
"11.12.13.14", 15, "a_local_prflx's protocol", rtc::ADAPTER_TYPE_CELLULAR,
cricket::PRFLX_PORT_TYPE, 2);
RTCLocalIceCandidateStats expected_a_local_prflx(
"RTCIceCandidate_" + a_local_prflx->id(), 0);
expected_a_local_prflx.transport_id = "RTCTransport_a_0";
expected_a_local_prflx.network_type = "cellular";
expected_a_local_prflx.ip = "11.12.13.14";
expected_a_local_prflx.port = 15;
expected_a_local_prflx.protocol = "a_local_prflx's protocol";
expected_a_local_prflx.candidate_type = "prflx";
expected_a_local_prflx.priority = 2;
expected_a_local_prflx.deleted = false;
EXPECT_FALSE(*expected_a_local_prflx.is_remote);
std::unique_ptr<cricket::Candidate> a_remote_relay = CreateFakeCandidate(
"16.17.18.19", 20, "a_remote_relay's protocol", rtc::ADAPTER_TYPE_UNKNOWN,
cricket::RELAY_PORT_TYPE, 3);
RTCRemoteIceCandidateStats expected_a_remote_relay(
"RTCIceCandidate_" + a_remote_relay->id(), 0);
expected_a_remote_relay.transport_id = "RTCTransport_a_0";
expected_a_remote_relay.ip = "16.17.18.19";
expected_a_remote_relay.port = 20;
expected_a_remote_relay.protocol = "a_remote_relay's protocol";
expected_a_remote_relay.candidate_type = "relay";
expected_a_remote_relay.priority = 3;
expected_a_remote_relay.deleted = false;
EXPECT_TRUE(*expected_a_remote_relay.is_remote);
std::unique_ptr<cricket::Candidate> a_local_relay = CreateFakeCandidate(
"16.17.18.19", 21, "a_local_relay's protocol", rtc::ADAPTER_TYPE_UNKNOWN,
cricket::RELAY_PORT_TYPE, 1);
a_local_relay->set_relay_protocol("tcp");
RTCRemoteIceCandidateStats expected_a_local_relay(
"RTCIceCandidate_" + a_local_relay->id(), 0);
expected_a_local_relay.transport_id = "RTCTransport_a_0";
expected_a_local_relay.ip = "16.17.18.19";
expected_a_local_relay.port = 21;
expected_a_local_relay.protocol = "a_local_relay's protocol";
expected_a_local_relay.relay_protocol = "tcp";
expected_a_local_relay.candidate_type = "relay";
expected_a_local_relay.priority = 1;
expected_a_local_relay.deleted = false;
EXPECT_TRUE(*expected_a_local_relay.is_remote);
// Candidates in the second transport stats.
std::unique_ptr<cricket::Candidate> b_local =
CreateFakeCandidate("42.42.42.42", 42, "b_local's protocol",
rtc::ADAPTER_TYPE_WIFI, cricket::LOCAL_PORT_TYPE, 42);
RTCLocalIceCandidateStats expected_b_local("RTCIceCandidate_" + b_local->id(),
0);
expected_b_local.transport_id = "RTCTransport_b_0";
expected_b_local.network_type = "wifi";
expected_b_local.ip = "42.42.42.42";
expected_b_local.port = 42;
expected_b_local.protocol = "b_local's protocol";
expected_b_local.candidate_type = "host";
expected_b_local.priority = 42;
expected_b_local.deleted = false;
EXPECT_FALSE(*expected_b_local.is_remote);
std::unique_ptr<cricket::Candidate> b_remote = CreateFakeCandidate(
"42.42.42.42", 42, "b_remote's protocol", rtc::ADAPTER_TYPE_UNKNOWN,
cricket::LOCAL_PORT_TYPE, 42);
RTCRemoteIceCandidateStats expected_b_remote(
"RTCIceCandidate_" + b_remote->id(), 0);
expected_b_remote.transport_id = "RTCTransport_b_0";
expected_b_remote.ip = "42.42.42.42";
expected_b_remote.port = 42;
expected_b_remote.protocol = "b_remote's protocol";
expected_b_remote.candidate_type = "host";
expected_b_remote.priority = 42;
expected_b_remote.deleted = false;
EXPECT_TRUE(*expected_b_remote.is_remote);
// Add candidate pairs to connection.
cricket::TransportChannelStats a_transport_channel_stats;
a_transport_channel_stats.ice_transport_stats.connection_infos.push_back(
cricket::ConnectionInfo());
a_transport_channel_stats.ice_transport_stats.connection_infos[0]
.local_candidate = *a_local_host.get();
a_transport_channel_stats.ice_transport_stats.connection_infos[0]
.remote_candidate = *a_remote_srflx.get();
a_transport_channel_stats.ice_transport_stats.connection_infos.push_back(
cricket::ConnectionInfo());
a_transport_channel_stats.ice_transport_stats.connection_infos[1]
.local_candidate = *a_local_prflx.get();
a_transport_channel_stats.ice_transport_stats.connection_infos[1]
.remote_candidate = *a_remote_relay.get();
a_transport_channel_stats.ice_transport_stats.connection_infos.push_back(
cricket::ConnectionInfo());
a_transport_channel_stats.ice_transport_stats.connection_infos[2]
.local_candidate = *a_local_relay.get();
a_transport_channel_stats.ice_transport_stats.connection_infos[2]
.remote_candidate = *a_remote_relay.get();
pc_->AddVoiceChannel("audio", "a");
pc_->SetTransportStats("a", a_transport_channel_stats);
cricket::TransportChannelStats b_transport_channel_stats;
b_transport_channel_stats.ice_transport_stats.connection_infos.push_back(
cricket::ConnectionInfo());
b_transport_channel_stats.ice_transport_stats.connection_infos[0]
.local_candidate = *b_local.get();
b_transport_channel_stats.ice_transport_stats.connection_infos[0]
.remote_candidate = *b_remote.get();
pc_->AddVideoChannel("video", "b");
pc_->SetTransportStats("b", b_transport_channel_stats);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
ASSERT_TRUE(report->Get(expected_a_local_host.id()));
EXPECT_EQ(expected_a_local_host, report->Get(expected_a_local_host.id())
->cast_to<RTCLocalIceCandidateStats>());
ASSERT_TRUE(report->Get(expected_a_remote_srflx.id()));
EXPECT_EQ(expected_a_remote_srflx,
report->Get(expected_a_remote_srflx.id())
->cast_to<RTCRemoteIceCandidateStats>());
ASSERT_TRUE(report->Get(expected_a_local_prflx.id()));
EXPECT_EQ(expected_a_local_prflx, report->Get(expected_a_local_prflx.id())
->cast_to<RTCLocalIceCandidateStats>());
ASSERT_TRUE(report->Get(expected_a_remote_relay.id()));
EXPECT_EQ(expected_a_remote_relay,
report->Get(expected_a_remote_relay.id())
->cast_to<RTCRemoteIceCandidateStats>());
ASSERT_TRUE(report->Get(expected_b_local.id()));
EXPECT_EQ(
expected_b_local,
report->Get(expected_b_local.id())->cast_to<RTCLocalIceCandidateStats>());
ASSERT_TRUE(report->Get(expected_b_remote.id()));
EXPECT_EQ(expected_b_remote, report->Get(expected_b_remote.id())
->cast_to<RTCRemoteIceCandidateStats>());
EXPECT_TRUE(report->Get("RTCTransport_a_0"));
EXPECT_TRUE(report->Get("RTCTransport_b_0"));
}
TEST_F(RTCStatsCollectorTest, CollectRTCIceCandidatePairStats) {
const char kTransportName[] = "transport";
std::unique_ptr<cricket::Candidate> local_candidate =
CreateFakeCandidate("42.42.42.42", 42, "protocol", rtc::ADAPTER_TYPE_WIFI,
cricket::LOCAL_PORT_TYPE, 42);
std::unique_ptr<cricket::Candidate> remote_candidate = CreateFakeCandidate(
"42.42.42.42", 42, "protocol", rtc::ADAPTER_TYPE_UNKNOWN,
cricket::LOCAL_PORT_TYPE, 42);
cricket::ConnectionInfo connection_info;
connection_info.best_connection = false;
connection_info.local_candidate = *local_candidate.get();
connection_info.remote_candidate = *remote_candidate.get();
connection_info.writable = true;
connection_info.sent_total_bytes = 42;
connection_info.recv_total_bytes = 1234;
connection_info.total_round_trip_time_ms = 0;
connection_info.current_round_trip_time_ms = absl::nullopt;
connection_info.recv_ping_requests = 2020;
connection_info.sent_ping_requests_total = 2020;
connection_info.sent_ping_requests_before_first_response = 2000;
connection_info.recv_ping_responses = 4321;
connection_info.sent_ping_responses = 1000;
connection_info.state = cricket::IceCandidatePairState::IN_PROGRESS;
connection_info.priority = 5555;
connection_info.nominated = false;
cricket::TransportChannelStats transport_channel_stats;
transport_channel_stats.component = cricket::ICE_CANDIDATE_COMPONENT_RTP;
transport_channel_stats.ice_transport_stats.connection_infos.push_back(
connection_info);
pc_->AddVideoChannel("video", kTransportName);
pc_->SetTransportStats(kTransportName, transport_channel_stats);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
RTCIceCandidatePairStats expected_pair("RTCIceCandidatePair_" +
local_candidate->id() + "_" +
remote_candidate->id(),
report->timestamp_us());
expected_pair.transport_id =
"RTCTransport_transport_" +
rtc::ToString(cricket::ICE_CANDIDATE_COMPONENT_RTP);
expected_pair.local_candidate_id = "RTCIceCandidate_" + local_candidate->id();
expected_pair.remote_candidate_id =
"RTCIceCandidate_" + remote_candidate->id();
expected_pair.state = RTCStatsIceCandidatePairState::kInProgress;
expected_pair.priority = 5555;
expected_pair.nominated = false;
expected_pair.writable = true;
expected_pair.bytes_sent = 42;
expected_pair.bytes_received = 1234;
expected_pair.total_round_trip_time = 0.0;
expected_pair.requests_received = 2020;
expected_pair.requests_sent = 2000;
expected_pair.responses_received = 4321;
expected_pair.responses_sent = 1000;
expected_pair.consent_requests_sent = (2020 - 2000);
// |expected_pair.current_round_trip_time| should be undefined because the
// current RTT is not set.
// |expected_pair.available_[outgoing/incoming]_bitrate| should be undefined
// because is is not the current pair.
ASSERT_TRUE(report->Get(expected_pair.id()));
EXPECT_EQ(
expected_pair,
report->Get(expected_pair.id())->cast_to<RTCIceCandidatePairStats>());
EXPECT_TRUE(report->Get(*expected_pair.transport_id));
// Set nominated and "GetStats" again.
transport_channel_stats.ice_transport_stats.connection_infos[0].nominated =
true;
pc_->SetTransportStats(kTransportName, transport_channel_stats);
report = stats_->GetFreshStatsReport();
expected_pair.nominated = true;
ASSERT_TRUE(report->Get(expected_pair.id()));
EXPECT_EQ(
expected_pair,
report->Get(expected_pair.id())->cast_to<RTCIceCandidatePairStats>());
EXPECT_TRUE(report->Get(*expected_pair.transport_id));
// Set round trip times and "GetStats" again.
transport_channel_stats.ice_transport_stats.connection_infos[0]
.total_round_trip_time_ms = 7331;
transport_channel_stats.ice_transport_stats.connection_infos[0]
.current_round_trip_time_ms = 1337;
pc_->SetTransportStats(kTransportName, transport_channel_stats);
report = stats_->GetFreshStatsReport();
expected_pair.total_round_trip_time = 7.331;
expected_pair.current_round_trip_time = 1.337;
ASSERT_TRUE(report->Get(expected_pair.id()));
EXPECT_EQ(
expected_pair,
report->Get(expected_pair.id())->cast_to<RTCIceCandidatePairStats>());
EXPECT_TRUE(report->Get(*expected_pair.transport_id));
// Make pair the current pair, clear bandwidth and "GetStats" again.
transport_channel_stats.ice_transport_stats.connection_infos[0]
.best_connection = true;
pc_->SetTransportStats(kTransportName, transport_channel_stats);
report = stats_->GetFreshStatsReport();
// |expected_pair.available_[outgoing/incoming]_bitrate| should still be
// undefined because bandwidth is not set.
ASSERT_TRUE(report->Get(expected_pair.id()));
EXPECT_EQ(
expected_pair,
report->Get(expected_pair.id())->cast_to<RTCIceCandidatePairStats>());
EXPECT_TRUE(report->Get(*expected_pair.transport_id));
// Set bandwidth and "GetStats" again.
webrtc::Call::Stats call_stats;
const int kSendBandwidth = 888;
call_stats.send_bandwidth_bps = kSendBandwidth;
const int kRecvBandwidth = 999;
call_stats.recv_bandwidth_bps = kRecvBandwidth;
pc_->SetCallStats(call_stats);
report = stats_->GetFreshStatsReport();
expected_pair.available_outgoing_bitrate = kSendBandwidth;
expected_pair.available_incoming_bitrate = kRecvBandwidth;
ASSERT_TRUE(report->Get(expected_pair.id()));
EXPECT_EQ(
expected_pair,
report->Get(expected_pair.id())->cast_to<RTCIceCandidatePairStats>());
EXPECT_TRUE(report->Get(*expected_pair.transport_id));
RTCLocalIceCandidateStats expected_local_candidate(
*expected_pair.local_candidate_id, report->timestamp_us());
expected_local_candidate.transport_id = *expected_pair.transport_id;
expected_local_candidate.network_type = "wifi";
expected_local_candidate.ip = "42.42.42.42";
expected_local_candidate.port = 42;
expected_local_candidate.protocol = "protocol";
expected_local_candidate.candidate_type = "host";
expected_local_candidate.priority = 42;
expected_local_candidate.deleted = false;
EXPECT_FALSE(*expected_local_candidate.is_remote);
ASSERT_TRUE(report->Get(expected_local_candidate.id()));
EXPECT_EQ(expected_local_candidate,
report->Get(expected_local_candidate.id())
->cast_to<RTCLocalIceCandidateStats>());
RTCRemoteIceCandidateStats expected_remote_candidate(
*expected_pair.remote_candidate_id, report->timestamp_us());
expected_remote_candidate.transport_id = *expected_pair.transport_id;
expected_remote_candidate.ip = "42.42.42.42";
expected_remote_candidate.port = 42;
expected_remote_candidate.protocol = "protocol";
expected_remote_candidate.candidate_type = "host";
expected_remote_candidate.priority = 42;
expected_remote_candidate.deleted = false;
EXPECT_TRUE(*expected_remote_candidate.is_remote);
ASSERT_TRUE(report->Get(expected_remote_candidate.id()));
EXPECT_EQ(expected_remote_candidate,
report->Get(expected_remote_candidate.id())
->cast_to<RTCRemoteIceCandidateStats>());
}
TEST_F(RTCStatsCollectorTest, CollectRTCPeerConnectionStats) {
{
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
RTCPeerConnectionStats expected("RTCPeerConnection",
report->timestamp_us());
expected.data_channels_opened = 0;
expected.data_channels_closed = 0;
ASSERT_TRUE(report->Get("RTCPeerConnection"));
EXPECT_EQ(
expected,
report->Get("RTCPeerConnection")->cast_to<RTCPeerConnectionStats>());
}
// TODO(bugs.webrtc.org/11547): Supply a separate network thread.
FakeDataChannelProvider provider;
rtc::scoped_refptr<SctpDataChannel> dummy_channel_a = SctpDataChannel::Create(
&provider, "DummyChannelA", InternalDataChannelInit(),
rtc::Thread::Current(), rtc::Thread::Current());
pc_->SignalSctpDataChannelCreated()(dummy_channel_a.get());
rtc::scoped_refptr<SctpDataChannel> dummy_channel_b = SctpDataChannel::Create(
&provider, "DummyChannelB", InternalDataChannelInit(),
rtc::Thread::Current(), rtc::Thread::Current());
pc_->SignalSctpDataChannelCreated()(dummy_channel_b.get());
dummy_channel_a->SignalOpened(dummy_channel_a.get());
// Closing a channel that is not opened should not affect the counts.
dummy_channel_b->SignalClosed(dummy_channel_b.get());
{
rtc::scoped_refptr<const RTCStatsReport> report =
stats_->GetFreshStatsReport();
RTCPeerConnectionStats expected("RTCPeerConnection",
report->timestamp_us());
expected.data_channels_opened = 1;
expected.data_channels_closed = 0;
ASSERT_TRUE(report->Get("RTCPeerConnection"));
EXPECT_EQ(
expected,
report->Get("RTCPeerConnection")->cast_to<RTCPeerConnectionStats>());
}
dummy_channel_b->SignalOpened(dummy_channel_b.get());
dummy_channel_b->SignalClosed(dummy_channel_b.get());
{
rtc::scoped_refptr<const RTCStatsReport> report =
stats_->GetFreshStatsReport();
RTCPeerConnectionStats expected("RTCPeerConnection",
report->timestamp_us());
expected.data_channels_opened = 2;
expected.data_channels_closed = 1;
ASSERT_TRUE(report->Get("RTCPeerConnection"));
EXPECT_EQ(
expected,
report->Get("RTCPeerConnection")->cast_to<RTCPeerConnectionStats>());
}
// Re-opening a data channel (or opening a new data channel that is re-using
// the same address in memory) should increase the opened count.
dummy_channel_b->SignalOpened(dummy_channel_b.get());
{
rtc::scoped_refptr<const RTCStatsReport> report =
stats_->GetFreshStatsReport();
RTCPeerConnectionStats expected("RTCPeerConnection",
report->timestamp_us());
expected.data_channels_opened = 3;
expected.data_channels_closed = 1;
ASSERT_TRUE(report->Get("RTCPeerConnection"));
EXPECT_EQ(
expected,
report->Get("RTCPeerConnection")->cast_to<RTCPeerConnectionStats>());
}
dummy_channel_a->SignalClosed(dummy_channel_a.get());
dummy_channel_b->SignalClosed(dummy_channel_b.get());
{
rtc::scoped_refptr<const RTCStatsReport> report =
stats_->GetFreshStatsReport();
RTCPeerConnectionStats expected("RTCPeerConnection",
report->timestamp_us());
expected.data_channels_opened = 3;
expected.data_channels_closed = 3;
ASSERT_TRUE(report->Get("RTCPeerConnection"));
EXPECT_EQ(
expected,
report->Get("RTCPeerConnection")->cast_to<RTCPeerConnectionStats>());
}
}
TEST_F(RTCStatsCollectorTest,
CollectLocalRTCMediaStreamStatsAndRTCMediaStreamTrackStats_Audio) {
rtc::scoped_refptr<MediaStream> local_stream =
MediaStream::Create("LocalStreamId");
pc_->mutable_local_streams()->AddStream(local_stream);
// Local audio track
rtc::scoped_refptr<MediaStreamTrackInterface> local_audio_track =
CreateFakeTrack(cricket::MEDIA_TYPE_AUDIO, "LocalAudioTrackID",
MediaStreamTrackInterface::kEnded);
local_stream->AddTrack(
static_cast<AudioTrackInterface*>(local_audio_track.get()));
cricket::VoiceSenderInfo voice_sender_info_ssrc1;
voice_sender_info_ssrc1.local_stats.push_back(cricket::SsrcSenderInfo());
voice_sender_info_ssrc1.local_stats[0].ssrc = 1;
voice_sender_info_ssrc1.apm_statistics.echo_return_loss = 42.0;
voice_sender_info_ssrc1.apm_statistics.echo_return_loss_enhancement = 52.0;
stats_->CreateMockRtpSendersReceiversAndChannels(
{std::make_pair(local_audio_track.get(), voice_sender_info_ssrc1)}, {},
{}, {}, {local_stream->id()}, {});
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
RTCMediaStreamStats expected_local_stream(
IdForType<RTCMediaStreamStats>(report), report->timestamp_us());
expected_local_stream.stream_identifier = local_stream->id();
expected_local_stream.track_ids = {
IdForType<RTCMediaStreamTrackStats>(report)};
ASSERT_TRUE(report->Get(expected_local_stream.id()))
<< "Did not find " << expected_local_stream.id() << " in "
<< report->ToJson();
EXPECT_EQ(
expected_local_stream,
report->Get(expected_local_stream.id())->cast_to<RTCMediaStreamStats>());
RTCMediaStreamTrackStats expected_local_audio_track_ssrc1(
IdForType<RTCMediaStreamTrackStats>(report), report->timestamp_us(),
RTCMediaStreamTrackKind::kAudio);
expected_local_audio_track_ssrc1.track_identifier = local_audio_track->id();
expected_local_audio_track_ssrc1.media_source_id =
"RTCAudioSource_11"; // Attachment ID = SSRC + 10
expected_local_audio_track_ssrc1.remote_source = false;
expected_local_audio_track_ssrc1.ended = true;
expected_local_audio_track_ssrc1.detached = false;
expected_local_audio_track_ssrc1.echo_return_loss = 42.0;
expected_local_audio_track_ssrc1.echo_return_loss_enhancement = 52.0;
ASSERT_TRUE(report->Get(expected_local_audio_track_ssrc1.id()))
<< "Did not find " << expected_local_audio_track_ssrc1.id() << " in "
<< report->ToJson();
EXPECT_EQ(expected_local_audio_track_ssrc1,
report->Get(expected_local_audio_track_ssrc1.id())
->cast_to<RTCMediaStreamTrackStats>());
}
TEST_F(RTCStatsCollectorTest,
CollectRemoteRTCMediaStreamStatsAndRTCMediaStreamTrackStats_Audio) {
rtc::scoped_refptr<MediaStream> remote_stream =
MediaStream::Create("RemoteStreamId");
pc_->mutable_remote_streams()->AddStream(remote_stream);
// Remote audio track
rtc::scoped_refptr<MediaStreamTrackInterface> remote_audio_track =
CreateFakeTrack(cricket::MEDIA_TYPE_AUDIO, "RemoteAudioTrackID",
MediaStreamTrackInterface::kLive);
remote_stream->AddTrack(
static_cast<AudioTrackInterface*>(remote_audio_track.get()));
cricket::VoiceReceiverInfo voice_receiver_info;
voice_receiver_info.local_stats.push_back(cricket::SsrcReceiverInfo());
voice_receiver_info.local_stats[0].ssrc = 3;
voice_receiver_info.audio_level = 16383;
voice_receiver_info.total_output_energy = 0.125;
voice_receiver_info.total_samples_received = 4567;
voice_receiver_info.total_output_duration = 0.25;
voice_receiver_info.concealed_samples = 123;
voice_receiver_info.concealment_events = 12;
voice_receiver_info.inserted_samples_for_deceleration = 987;
voice_receiver_info.removed_samples_for_acceleration = 876;
voice_receiver_info.silent_concealed_samples = 765;
voice_receiver_info.jitter_buffer_delay_seconds = 3456;
voice_receiver_info.jitter_buffer_emitted_count = 13;
voice_receiver_info.jitter_buffer_target_delay_seconds = 7.894;
voice_receiver_info.jitter_buffer_flushes = 7;
voice_receiver_info.delayed_packet_outage_samples = 15;
voice_receiver_info.relative_packet_arrival_delay_seconds = 16;
voice_receiver_info.interruption_count = 7788;
voice_receiver_info.total_interruption_duration_ms = 778899;
stats_->CreateMockRtpSendersReceiversAndChannels(
{}, {std::make_pair(remote_audio_track.get(), voice_receiver_info)}, {},
{}, {}, {remote_stream});
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
RTCMediaStreamStats expected_remote_stream(
IdForType<RTCMediaStreamStats>(report), report->timestamp_us());
expected_remote_stream.stream_identifier = remote_stream->id();
expected_remote_stream.track_ids =
std::vector<std::string>({IdForType<RTCMediaStreamTrackStats>(report)});
ASSERT_TRUE(report->Get(expected_remote_stream.id()))
<< "Did not find " << expected_remote_stream.id() << " in "
<< report->ToJson();
EXPECT_EQ(
expected_remote_stream,
report->Get(expected_remote_stream.id())->cast_to<RTCMediaStreamStats>());
RTCMediaStreamTrackStats expected_remote_audio_track(
IdForType<RTCMediaStreamTrackStats>(report), report->timestamp_us(),
RTCMediaStreamTrackKind::kAudio);
expected_remote_audio_track.track_identifier = remote_audio_track->id();
// |expected_remote_audio_track.media_source_id| should be undefined
// because the track is remote.
expected_remote_audio_track.remote_source = true;
expected_remote_audio_track.ended = false;
expected_remote_audio_track.detached = false;
expected_remote_audio_track.audio_level = 16383.0 / 32767.0;
expected_remote_audio_track.total_audio_energy = 0.125;
expected_remote_audio_track.total_samples_received = 4567;
expected_remote_audio_track.total_samples_duration = 0.25;
expected_remote_audio_track.concealed_samples = 123;
expected_remote_audio_track.concealment_events = 12;
expected_remote_audio_track.inserted_samples_for_deceleration = 987;
expected_remote_audio_track.removed_samples_for_acceleration = 876;
expected_remote_audio_track.silent_concealed_samples = 765;
expected_remote_audio_track.jitter_buffer_delay = 3456;
expected_remote_audio_track.jitter_buffer_emitted_count = 13;
expected_remote_audio_track.jitter_buffer_target_delay = 7.894;
expected_remote_audio_track.jitter_buffer_flushes = 7;
expected_remote_audio_track.delayed_packet_outage_samples = 15;
expected_remote_audio_track.relative_packet_arrival_delay = 16;
expected_remote_audio_track.interruption_count = 7788;
expected_remote_audio_track.total_interruption_duration = 778.899;
ASSERT_TRUE(report->Get(expected_remote_audio_track.id()));
EXPECT_EQ(expected_remote_audio_track,
report->Get(expected_remote_audio_track.id())
->cast_to<RTCMediaStreamTrackStats>());
}
TEST_F(RTCStatsCollectorTest,
CollectLocalRTCMediaStreamStatsAndRTCMediaStreamTrackStats_Video) {
rtc::scoped_refptr<MediaStream> local_stream =
MediaStream::Create("LocalStreamId");
pc_->mutable_local_streams()->AddStream(local_stream);
// Local video track
rtc::scoped_refptr<MediaStreamTrackInterface> local_video_track =
CreateFakeTrack(cricket::MEDIA_TYPE_VIDEO, "LocalVideoTrackID",
MediaStreamTrackInterface::kLive);
local_stream->AddTrack(
static_cast<VideoTrackInterface*>(local_video_track.get()));
cricket::VideoSenderInfo video_sender_info_ssrc1;
video_sender_info_ssrc1.local_stats.push_back(cricket::SsrcSenderInfo());
video_sender_info_ssrc1.local_stats[0].ssrc = 1;
video_sender_info_ssrc1.send_frame_width = 1234;
video_sender_info_ssrc1.send_frame_height = 4321;
video_sender_info_ssrc1.frames_encoded = 11;
video_sender_info_ssrc1.huge_frames_sent = 1;
stats_->CreateMockRtpSendersReceiversAndChannels(
{}, {},
{std::make_pair(local_video_track.get(), video_sender_info_ssrc1)}, {},
{local_stream->id()}, {});
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
auto stats_of_my_type = report->GetStatsOfType<RTCMediaStreamStats>();
ASSERT_EQ(1U, stats_of_my_type.size()) << "No stream in " << report->ToJson();
auto stats_of_track_type = report->GetStatsOfType<RTCMediaStreamTrackStats>();
ASSERT_EQ(1U, stats_of_track_type.size())
<< "Wrong number of tracks in " << report->ToJson();
RTCMediaStreamStats expected_local_stream(stats_of_my_type[0]->id(),
report->timestamp_us());
expected_local_stream.stream_identifier = local_stream->id();
expected_local_stream.track_ids =
std::vector<std::string>({stats_of_track_type[0]->id()});
ASSERT_TRUE(report->Get(expected_local_stream.id()));
EXPECT_EQ(
expected_local_stream,
report->Get(expected_local_stream.id())->cast_to<RTCMediaStreamStats>());
RTCMediaStreamTrackStats expected_local_video_track_ssrc1(
stats_of_track_type[0]->id(), report->timestamp_us(),
RTCMediaStreamTrackKind::kVideo);
expected_local_video_track_ssrc1.track_identifier = local_video_track->id();
expected_local_video_track_ssrc1.media_source_id =
"RTCVideoSource_11"; // Attachment ID = SSRC + 10
expected_local_video_track_ssrc1.remote_source = false;
expected_local_video_track_ssrc1.ended = false;
expected_local_video_track_ssrc1.detached = false;
expected_local_video_track_ssrc1.frame_width = 1234;
expected_local_video_track_ssrc1.frame_height = 4321;
expected_local_video_track_ssrc1.frames_sent = 11;
expected_local_video_track_ssrc1.huge_frames_sent = 1;
ASSERT_TRUE(report->Get(expected_local_video_track_ssrc1.id()));
EXPECT_EQ(expected_local_video_track_ssrc1,
report->Get(expected_local_video_track_ssrc1.id())
->cast_to<RTCMediaStreamTrackStats>());
}
TEST_F(RTCStatsCollectorTest,
CollectRemoteRTCMediaStreamStatsAndRTCMediaStreamTrackStats_Video) {
rtc::scoped_refptr<MediaStream> remote_stream =
MediaStream::Create("RemoteStreamId");
pc_->mutable_remote_streams()->AddStream(remote_stream);
// Remote video track with values
rtc::scoped_refptr<MediaStreamTrackInterface> remote_video_track_ssrc3 =
CreateFakeTrack(cricket::MEDIA_TYPE_VIDEO, "RemoteVideoTrackID3",
MediaStreamTrackInterface::kEnded);
remote_stream->AddTrack(
static_cast<VideoTrackInterface*>(remote_video_track_ssrc3.get()));
cricket::VideoReceiverInfo video_receiver_info_ssrc3;
video_receiver_info_ssrc3.local_stats.push_back(cricket::SsrcReceiverInfo());
video_receiver_info_ssrc3.local_stats[0].ssrc = 3;
video_receiver_info_ssrc3.frame_width = 6789;
video_receiver_info_ssrc3.frame_height = 9876;
video_receiver_info_ssrc3.jitter_buffer_delay_seconds = 2.5;
video_receiver_info_ssrc3.jitter_buffer_emitted_count = 25;
video_receiver_info_ssrc3.frames_received = 1000;
video_receiver_info_ssrc3.frames_decoded = 995;
video_receiver_info_ssrc3.frames_dropped = 10;
video_receiver_info_ssrc3.frames_rendered = 990;
video_receiver_info_ssrc3.freeze_count = 3;
video_receiver_info_ssrc3.pause_count = 2;
video_receiver_info_ssrc3.total_freezes_duration_ms = 1000;
video_receiver_info_ssrc3.total_pauses_duration_ms = 10000;
video_receiver_info_ssrc3.total_frames_duration_ms = 15000;
video_receiver_info_ssrc3.sum_squared_frame_durations = 1.5;
stats_->CreateMockRtpSendersReceiversAndChannels(
{}, {}, {},
{std::make_pair(remote_video_track_ssrc3.get(),
video_receiver_info_ssrc3)},
{}, {remote_stream});
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
auto stats_of_my_type = report->GetStatsOfType<RTCMediaStreamStats>();
ASSERT_EQ(1U, stats_of_my_type.size()) << "No stream in " << report->ToJson();
auto stats_of_track_type = report->GetStatsOfType<RTCMediaStreamTrackStats>();
ASSERT_EQ(1U, stats_of_track_type.size())
<< "Wrong number of tracks in " << report->ToJson();
ASSERT_TRUE(*(stats_of_track_type[0]->remote_source));
RTCMediaStreamStats expected_remote_stream(stats_of_my_type[0]->id(),
report->timestamp_us());
expected_remote_stream.stream_identifier = remote_stream->id();
expected_remote_stream.track_ids =
std::vector<std::string>({stats_of_track_type[0]->id()});
ASSERT_TRUE(report->Get(expected_remote_stream.id()));
EXPECT_EQ(
expected_remote_stream,
report->Get(expected_remote_stream.id())->cast_to<RTCMediaStreamStats>());
RTCMediaStreamTrackStats expected_remote_video_track_ssrc3(
stats_of_track_type[0]->id(), report->timestamp_us(),
RTCMediaStreamTrackKind::kVideo);
expected_remote_video_track_ssrc3.track_identifier =
remote_video_track_ssrc3->id();
// |expected_remote_video_track_ssrc3.media_source_id| should be undefined
// because the track is remote.
expected_remote_video_track_ssrc3.remote_source = true;
expected_remote_video_track_ssrc3.ended = true;
expected_remote_video_track_ssrc3.detached = false;
expected_remote_video_track_ssrc3.frame_width = 6789;
expected_remote_video_track_ssrc3.frame_height = 9876;
expected_remote_video_track_ssrc3.jitter_buffer_delay = 2.5;
expected_remote_video_track_ssrc3.jitter_buffer_emitted_count = 25;
expected_remote_video_track_ssrc3.frames_received = 1000;
expected_remote_video_track_ssrc3.frames_decoded = 995;
expected_remote_video_track_ssrc3.frames_dropped = 10;
expected_remote_video_track_ssrc3.freeze_count = 3;
expected_remote_video_track_ssrc3.pause_count = 2;
expected_remote_video_track_ssrc3.total_freezes_duration = 1;
expected_remote_video_track_ssrc3.total_pauses_duration = 10;
expected_remote_video_track_ssrc3.total_frames_duration = 15;
expected_remote_video_track_ssrc3.sum_squared_frame_durations = 1.5;
ASSERT_TRUE(report->Get(expected_remote_video_track_ssrc3.id()));
EXPECT_EQ(expected_remote_video_track_ssrc3,
report->Get(expected_remote_video_track_ssrc3.id())
->cast_to<RTCMediaStreamTrackStats>());
}
TEST_F(RTCStatsCollectorTest, CollectRTCInboundRTPStreamStats_Audio) {
cricket::VoiceMediaInfo voice_media_info;
voice_media_info.receivers.push_back(cricket::VoiceReceiverInfo());
voice_media_info.receivers[0].local_stats.push_back(
cricket::SsrcReceiverInfo());
voice_media_info.receivers[0].local_stats[0].ssrc = 1;
voice_media_info.receivers[0].packets_lost = -1; // Signed per RFC3550
voice_media_info.receivers[0].packets_rcvd = 2;
voice_media_info.receivers[0].fec_packets_discarded = 5566;
voice_media_info.receivers[0].fec_packets_received = 6677;
voice_media_info.receivers[0].payload_bytes_rcvd = 3;
voice_media_info.receivers[0].header_and_padding_bytes_rcvd = 4;
voice_media_info.receivers[0].codec_payload_type = 42;
voice_media_info.receivers[0].jitter_ms = 4500;
voice_media_info.receivers[0].jitter_buffer_delay_seconds = 1.0;
voice_media_info.receivers[0].jitter_buffer_emitted_count = 2;
voice_media_info.receivers[0].total_samples_received = 3;
voice_media_info.receivers[0].concealed_samples = 4;
voice_media_info.receivers[0].silent_concealed_samples = 5;
voice_media_info.receivers[0].concealment_events = 6;
voice_media_info.receivers[0].inserted_samples_for_deceleration = 7;
voice_media_info.receivers[0].removed_samples_for_acceleration = 8;
voice_media_info.receivers[0].audio_level = 9.0;
voice_media_info.receivers[0].total_output_energy = 10.0;
voice_media_info.receivers[0].total_output_duration = 11.0;
voice_media_info.receivers[0].last_packet_received_timestamp_ms =
absl::nullopt;
RtpCodecParameters codec_parameters;
codec_parameters.payload_type = 42;
codec_parameters.kind = cricket::MEDIA_TYPE_AUDIO;
codec_parameters.name = "dummy";
codec_parameters.clock_rate = 0;
voice_media_info.receive_codecs.insert(
std::make_pair(codec_parameters.payload_type, codec_parameters));
auto* voice_media_channel = pc_->AddVoiceChannel("AudioMid", "TransportName");
voice_media_channel->SetStats(voice_media_info);
stats_->SetupRemoteTrackAndReceiver(
cricket::MEDIA_TYPE_AUDIO, "RemoteAudioTrackID", "RemoteStreamId", 1);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
auto stats_of_track_type = report->GetStatsOfType<RTCMediaStreamTrackStats>();
ASSERT_EQ(1U, stats_of_track_type.size());
RTCInboundRTPStreamStats expected_audio("RTCInboundRTPAudioStream_1",
report->timestamp_us());
expected_audio.ssrc = 1;
expected_audio.is_remote = false;
expected_audio.media_type = "audio";
expected_audio.kind = "audio";
expected_audio.track_id = stats_of_track_type[0]->id();
expected_audio.transport_id = "RTCTransport_TransportName_1";
expected_audio.codec_id = "RTCCodec_AudioMid_Inbound_42";
expected_audio.packets_received = 2;
expected_audio.fec_packets_discarded = 5566;
expected_audio.fec_packets_received = 6677;
expected_audio.bytes_received = 3;
expected_audio.header_bytes_received = 4;
expected_audio.packets_lost = -1;
// |expected_audio.last_packet_received_timestamp| should be undefined.
expected_audio.jitter = 4.5;
expected_audio.jitter_buffer_delay = 1.0;
expected_audio.jitter_buffer_emitted_count = 2;
expected_audio.total_samples_received = 3;
expected_audio.concealed_samples = 4;
expected_audio.silent_concealed_samples = 5;
expected_audio.concealment_events = 6;
expected_audio.inserted_samples_for_deceleration = 7;
expected_audio.removed_samples_for_acceleration = 8;
expected_audio.audio_level = 9.0;
expected_audio.total_audio_energy = 10.0;
expected_audio.total_samples_duration = 11.0;
ASSERT_TRUE(report->Get(expected_audio.id()));
EXPECT_EQ(
report->Get(expected_audio.id())->cast_to<RTCInboundRTPStreamStats>(),
expected_audio);
// Set previously undefined values and "GetStats" again.
voice_media_info.receivers[0].last_packet_received_timestamp_ms = 3000;
expected_audio.last_packet_received_timestamp = 3.0;
voice_media_info.receivers[0].estimated_playout_ntp_timestamp_ms = 4567;
expected_audio.estimated_playout_timestamp = 4567;
voice_media_channel->SetStats(voice_media_info);
report = stats_->GetFreshStatsReport();
ASSERT_TRUE(report->Get(expected_audio.id()));
EXPECT_EQ(
report->Get(expected_audio.id())->cast_to<RTCInboundRTPStreamStats>(),
expected_audio);
EXPECT_TRUE(report->Get(*expected_audio.track_id));
EXPECT_TRUE(report->Get(*expected_audio.transport_id));
EXPECT_TRUE(report->Get(*expected_audio.codec_id));
}
TEST_F(RTCStatsCollectorTest, CollectRTCInboundRTPStreamStats_Video) {
cricket::VideoMediaInfo video_media_info;
video_media_info.receivers.push_back(cricket::VideoReceiverInfo());
video_media_info.receivers[0].local_stats.push_back(
cricket::SsrcReceiverInfo());
video_media_info.receivers[0].local_stats[0].ssrc = 1;
video_media_info.receivers[0].packets_rcvd = 2;
video_media_info.receivers[0].packets_lost = 42;
video_media_info.receivers[0].payload_bytes_rcvd = 3;
video_media_info.receivers[0].header_and_padding_bytes_rcvd = 12;
video_media_info.receivers[0].codec_payload_type = 42;
video_media_info.receivers[0].firs_sent = 5;
video_media_info.receivers[0].plis_sent = 6;
video_media_info.receivers[0].nacks_sent = 7;
video_media_info.receivers[0].frames_received = 8;
video_media_info.receivers[0].frames_decoded = 9;
video_media_info.receivers[0].key_frames_decoded = 3;
video_media_info.receivers[0].frames_dropped = 13;
video_media_info.receivers[0].qp_sum = absl::nullopt;
video_media_info.receivers[0].total_decode_time_ms = 9000;
video_media_info.receivers[0].total_inter_frame_delay = 0.123;
video_media_info.receivers[0].total_squared_inter_frame_delay = 0.00456;
video_media_info.receivers[0].last_packet_received_timestamp_ms =
absl::nullopt;
video_media_info.receivers[0].content_type = VideoContentType::UNSPECIFIED;
video_media_info.receivers[0].estimated_playout_ntp_timestamp_ms =
absl::nullopt;
video_media_info.receivers[0].decoder_implementation_name = "";
RtpCodecParameters codec_parameters;
codec_parameters.payload_type = 42;
codec_parameters.kind = cricket::MEDIA_TYPE_AUDIO;
codec_parameters.name = "dummy";
codec_parameters.clock_rate = 0;
video_media_info.receive_codecs.insert(
std::make_pair(codec_parameters.payload_type, codec_parameters));
auto* video_media_channel = pc_->AddVideoChannel("VideoMid", "TransportName");
video_media_channel->SetStats(video_media_info);
stats_->SetupRemoteTrackAndReceiver(
cricket::MEDIA_TYPE_VIDEO, "RemoteVideoTrackID", "RemoteStreamId", 1);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
RTCInboundRTPStreamStats expected_video("RTCInboundRTPVideoStream_1",
report->timestamp_us());
expected_video.ssrc = 1;
expected_video.is_remote = false;
expected_video.media_type = "video";
expected_video.kind = "video";
expected_video.track_id = IdForType<RTCMediaStreamTrackStats>(report);
expected_video.transport_id = "RTCTransport_TransportName_1";
expected_video.codec_id = "RTCCodec_VideoMid_Inbound_42";
expected_video.fir_count = 5;
expected_video.pli_count = 6;
expected_video.nack_count = 7;
expected_video.packets_received = 2;
expected_video.bytes_received = 3;
expected_video.header_bytes_received = 12;
expected_video.packets_lost = 42;
expected_video.frames_received = 8;
expected_video.frames_decoded = 9;
expected_video.key_frames_decoded = 3;
expected_video.frames_dropped = 13;
// |expected_video.qp_sum| should be undefined.
expected_video.total_decode_time = 9.0;
expected_video.total_inter_frame_delay = 0.123;
expected_video.total_squared_inter_frame_delay = 0.00456;
// |expected_video.last_packet_received_timestamp| should be undefined.
// |expected_video.content_type| should be undefined.
// |expected_video.decoder_implementation| should be undefined.
ASSERT_TRUE(report->Get(expected_video.id()));
EXPECT_EQ(
report->Get(expected_video.id())->cast_to<RTCInboundRTPStreamStats>(),
expected_video);
// Set previously undefined values and "GetStats" again.
video_media_info.receivers[0].qp_sum = 9;
expected_video.qp_sum = 9;
video_media_info.receivers[0].last_packet_received_timestamp_ms = 1000;
expected_video.last_packet_received_timestamp = 1.0;
video_media_info.receivers[0].content_type = VideoContentType::SCREENSHARE;
expected_video.content_type = "screenshare";
video_media_info.receivers[0].estimated_playout_ntp_timestamp_ms = 1234;
expected_video.estimated_playout_timestamp = 1234;
video_media_info.receivers[0].decoder_implementation_name = "libfoodecoder";
expected_video.decoder_implementation = "libfoodecoder";
video_media_channel->SetStats(video_media_info);
report = stats_->GetFreshStatsReport();
ASSERT_TRUE(report->Get(expected_video.id()));
EXPECT_EQ(
report->Get(expected_video.id())->cast_to<RTCInboundRTPStreamStats>(),
expected_video);
EXPECT_TRUE(report->Get(*expected_video.track_id));
EXPECT_TRUE(report->Get(*expected_video.transport_id));
EXPECT_TRUE(report->Get(*expected_video.codec_id));
}
TEST_F(RTCStatsCollectorTest, CollectRTCOutboundRTPStreamStats_Audio) {
cricket::VoiceMediaInfo voice_media_info;
voice_media_info.senders.push_back(cricket::VoiceSenderInfo());
voice_media_info.senders[0].local_stats.push_back(cricket::SsrcSenderInfo());
voice_media_info.senders[0].local_stats[0].ssrc = 1;
voice_media_info.senders[0].packets_sent = 2;
voice_media_info.senders[0].retransmitted_packets_sent = 20;
voice_media_info.senders[0].payload_bytes_sent = 3;
voice_media_info.senders[0].header_and_padding_bytes_sent = 12;
voice_media_info.senders[0].retransmitted_bytes_sent = 30;
voice_media_info.senders[0].codec_payload_type = 42;
RtpCodecParameters codec_parameters;
codec_parameters.payload_type = 42;
codec_parameters.kind = cricket::MEDIA_TYPE_AUDIO;
codec_parameters.name = "dummy";
codec_parameters.clock_rate = 0;
voice_media_info.send_codecs.insert(
std::make_pair(codec_parameters.payload_type, codec_parameters));
auto* voice_media_channel = pc_->AddVoiceChannel("AudioMid", "TransportName");
voice_media_channel->SetStats(voice_media_info);
stats_->SetupLocalTrackAndSender(cricket::MEDIA_TYPE_AUDIO,
"LocalAudioTrackID", 1, true,
/*attachment_id=*/50);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
RTCOutboundRTPStreamStats expected_audio("RTCOutboundRTPAudioStream_1",
report->timestamp_us());
expected_audio.media_source_id = "RTCAudioSource_50";
// |expected_audio.remote_id| should be undefined.
expected_audio.ssrc = 1;
expected_audio.is_remote = false;
expected_audio.media_type = "audio";
expected_audio.kind = "audio";
expected_audio.track_id = IdForType<RTCMediaStreamTrackStats>(report);
expected_audio.transport_id = "RTCTransport_TransportName_1";
expected_audio.codec_id = "RTCCodec_AudioMid_Outbound_42";
expected_audio.packets_sent = 2;
expected_audio.retransmitted_packets_sent = 20;
expected_audio.bytes_sent = 3;
expected_audio.header_bytes_sent = 12;
expected_audio.retransmitted_bytes_sent = 30;
ASSERT_TRUE(report->Get(expected_audio.id()));
EXPECT_EQ(
report->Get(expected_audio.id())->cast_to<RTCOutboundRTPStreamStats>(),
expected_audio);
ASSERT_TRUE(report->Get(expected_audio.id()));
EXPECT_EQ(
report->Get(expected_audio.id())->cast_to<RTCOutboundRTPStreamStats>(),
expected_audio);
EXPECT_TRUE(report->Get(*expected_audio.track_id));
EXPECT_TRUE(report->Get(*expected_audio.transport_id));
EXPECT_TRUE(report->Get(*expected_audio.codec_id));
}
TEST_F(RTCStatsCollectorTest, CollectRTCOutboundRTPStreamStats_Video) {
cricket::VideoMediaInfo video_media_info;
video_media_info.senders.push_back(cricket::VideoSenderInfo());
video_media_info.senders[0].local_stats.push_back(cricket::SsrcSenderInfo());
video_media_info.senders[0].local_stats[0].ssrc = 1;
video_media_info.senders[0].firs_rcvd = 2;
video_media_info.senders[0].plis_rcvd = 3;
video_media_info.senders[0].nacks_rcvd = 4;
video_media_info.senders[0].packets_sent = 5;
video_media_info.senders[0].retransmitted_packets_sent = 50;
video_media_info.senders[0].payload_bytes_sent = 6;
video_media_info.senders[0].header_and_padding_bytes_sent = 12;
video_media_info.senders[0].retransmitted_bytes_sent = 60;
video_media_info.senders[0].codec_payload_type = 42;
video_media_info.senders[0].frames_encoded = 8;
video_media_info.senders[0].key_frames_encoded = 3;
video_media_info.senders[0].total_encode_time_ms = 9000;
video_media_info.senders[0].total_encoded_bytes_target = 1234;
video_media_info.senders[0].total_packet_send_delay_ms = 10000;
video_media_info.senders[0].quality_limitation_reason =
QualityLimitationReason::kBandwidth;
video_media_info.senders[0].quality_limitation_resolution_changes = 56u;
video_media_info.senders[0].qp_sum = absl::nullopt;
video_media_info.senders[0].content_type = VideoContentType::UNSPECIFIED;
video_media_info.senders[0].encoder_implementation_name = "";
video_media_info.senders[0].send_frame_width = 200;
video_media_info.senders[0].send_frame_height = 100;
video_media_info.senders[0].framerate_sent = 10;
video_media_info.senders[0].frames_sent = 5;
video_media_info.senders[0].huge_frames_sent = 2;
video_media_info.aggregated_senders.push_back(video_media_info.senders[0]);
RtpCodecParameters codec_parameters;
codec_parameters.payload_type = 42;
codec_parameters.kind = cricket::MEDIA_TYPE_AUDIO;
codec_parameters.name = "dummy";
codec_parameters.clock_rate = 0;
video_media_info.send_codecs.insert(
std::make_pair(codec_parameters.payload_type, codec_parameters));
auto* video_media_channel = pc_->AddVideoChannel("VideoMid", "TransportName");
video_media_channel->SetStats(video_media_info);
stats_->SetupLocalTrackAndSender(cricket::MEDIA_TYPE_VIDEO,
"LocalVideoTrackID", 1, true,
/*attachment_id=*/50);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
auto stats_of_my_type = report->GetStatsOfType<RTCOutboundRTPStreamStats>();
ASSERT_EQ(1U, stats_of_my_type.size());
auto stats_of_track_type = report->GetStatsOfType<RTCMediaStreamTrackStats>();
ASSERT_EQ(1U, stats_of_track_type.size());
RTCOutboundRTPStreamStats expected_video(stats_of_my_type[0]->id(),
report->timestamp_us());
expected_video.media_source_id = "RTCVideoSource_50";
// |expected_video.remote_id| should be undefined.
expected_video.ssrc = 1;
expected_video.is_remote = false;
expected_video.media_type = "video";
expected_video.kind = "video";
expected_video.track_id = stats_of_track_type[0]->id();
expected_video.transport_id = "RTCTransport_TransportName_1";
expected_video.codec_id = "RTCCodec_VideoMid_Outbound_42";
expected_video.fir_count = 2;
expected_video.pli_count = 3;
expected_video.nack_count = 4;
expected_video.packets_sent = 5;
expected_video.retransmitted_packets_sent = 50;
expected_video.bytes_sent = 6;
expected_video.header_bytes_sent = 12;
expected_video.retransmitted_bytes_sent = 60;
expected_video.frames_encoded = 8;
expected_video.key_frames_encoded = 3;
expected_video.total_encode_time = 9.0;
expected_video.total_encoded_bytes_target = 1234;
expected_video.total_packet_send_delay = 10.0;
expected_video.quality_limitation_reason = "bandwidth";
expected_video.quality_limitation_resolution_changes = 56u;
expected_video.frame_width = 200u;
expected_video.frame_height = 100u;
expected_video.frames_per_second = 10.0;
expected_video.frames_sent = 5;
expected_video.huge_frames_sent = 2;
// |expected_video.content_type| should be undefined.
// |expected_video.qp_sum| should be undefined.
// |expected_video.encoder_implementation| should be undefined.
ASSERT_TRUE(report->Get(expected_video.id()));
EXPECT_EQ(
report->Get(expected_video.id())->cast_to<RTCOutboundRTPStreamStats>(),
expected_video);
// Set previously undefined values and "GetStats" again.
video_media_info.senders[0].qp_sum = 9;
expected_video.qp_sum = 9;
video_media_info.senders[0].content_type = VideoContentType::SCREENSHARE;
expected_video.content_type = "screenshare";
video_media_info.senders[0].encoder_implementation_name = "libfooencoder";
video_media_info.aggregated_senders[0] = video_media_info.senders[0];
expected_video.encoder_implementation = "libfooencoder";
video_media_channel->SetStats(video_media_info);
report = stats_->GetFreshStatsReport();
ASSERT_TRUE(report->Get(expected_video.id()));
EXPECT_EQ(
report->Get(expected_video.id())->cast_to<RTCOutboundRTPStreamStats>(),
expected_video);
EXPECT_TRUE(report->Get(*expected_video.track_id));
EXPECT_TRUE(report->Get(*expected_video.transport_id));
EXPECT_TRUE(report->Get(*expected_video.codec_id));
}
TEST_F(RTCStatsCollectorTest, CollectRTCTransportStats) {
const char kTransportName[] = "transport";
pc_->AddVoiceChannel("audio", kTransportName);
std::unique_ptr<cricket::Candidate> rtp_local_candidate =
CreateFakeCandidate("42.42.42.42", 42, "protocol", rtc::ADAPTER_TYPE_WIFI,
cricket::LOCAL_PORT_TYPE, 42);
std::unique_ptr<cricket::Candidate> rtp_remote_candidate =
CreateFakeCandidate("42.42.42.42", 42, "protocol",
rtc::ADAPTER_TYPE_UNKNOWN, cricket::LOCAL_PORT_TYPE,
42);
std::unique_ptr<cricket::Candidate> rtcp_local_candidate =
CreateFakeCandidate("42.42.42.42", 42, "protocol", rtc::ADAPTER_TYPE_WIFI,
cricket::LOCAL_PORT_TYPE, 42);
std::unique_ptr<cricket::Candidate> rtcp_remote_candidate =
CreateFakeCandidate("42.42.42.42", 42, "protocol",
rtc::ADAPTER_TYPE_UNKNOWN, cricket::LOCAL_PORT_TYPE,
42);
cricket::ConnectionInfo rtp_connection_info;
rtp_connection_info.best_connection = false;
rtp_connection_info.local_candidate = *rtp_local_candidate.get();
rtp_connection_info.remote_candidate = *rtp_remote_candidate.get();
rtp_connection_info.sent_total_bytes = 42;
rtp_connection_info.recv_total_bytes = 1337;
cricket::TransportChannelStats rtp_transport_channel_stats;
rtp_transport_channel_stats.component = cricket::ICE_CANDIDATE_COMPONENT_RTP;
rtp_transport_channel_stats.ice_transport_stats.connection_infos.push_back(
rtp_connection_info);
rtp_transport_channel_stats.dtls_state = cricket::DTLS_TRANSPORT_NEW;
rtp_transport_channel_stats.ice_transport_stats
.selected_candidate_pair_changes = 1;
pc_->SetTransportStats(kTransportName, {rtp_transport_channel_stats});
// Get stats without RTCP, an active connection or certificates.
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
RTCTransportStats expected_rtp_transport(
"RTCTransport_transport_" +
rtc::ToString(cricket::ICE_CANDIDATE_COMPONENT_RTP),
report->timestamp_us());
expected_rtp_transport.bytes_sent = 42;
expected_rtp_transport.bytes_received = 1337;
expected_rtp_transport.dtls_state = RTCDtlsTransportState::kNew;
expected_rtp_transport.selected_candidate_pair_changes = 1;
ASSERT_TRUE(report->Get(expected_rtp_transport.id()));
EXPECT_EQ(
expected_rtp_transport,
report->Get(expected_rtp_transport.id())->cast_to<RTCTransportStats>());
cricket::ConnectionInfo rtcp_connection_info;
rtcp_connection_info.best_connection = false;
rtcp_connection_info.local_candidate = *rtcp_local_candidate.get();
rtcp_connection_info.remote_candidate = *rtcp_remote_candidate.get();
rtcp_connection_info.sent_total_bytes = 1337;
rtcp_connection_info.recv_total_bytes = 42;
cricket::TransportChannelStats rtcp_transport_channel_stats;
rtcp_transport_channel_stats.component =
cricket::ICE_CANDIDATE_COMPONENT_RTCP;
rtcp_transport_channel_stats.ice_transport_stats.connection_infos.push_back(
rtcp_connection_info);
rtcp_transport_channel_stats.dtls_state = cricket::DTLS_TRANSPORT_CONNECTING;
pc_->SetTransportStats(kTransportName, {rtp_transport_channel_stats,
rtcp_transport_channel_stats});
// Get stats with RTCP and without an active connection or certificates.
report = stats_->GetFreshStatsReport();
RTCTransportStats expected_rtcp_transport(
"RTCTransport_transport_" +
rtc::ToString(cricket::ICE_CANDIDATE_COMPONENT_RTCP),
report->timestamp_us());
expected_rtcp_transport.bytes_sent = 1337;
expected_rtcp_transport.bytes_received = 42;
expected_rtcp_transport.dtls_state = RTCDtlsTransportState::kConnecting;
expected_rtcp_transport.selected_candidate_pair_changes = 0;
expected_rtp_transport.rtcp_transport_stats_id = expected_rtcp_transport.id();
ASSERT_TRUE(report->Get(expected_rtp_transport.id()));
EXPECT_EQ(
expected_rtp_transport,
report->Get(expected_rtp_transport.id())->cast_to<RTCTransportStats>());
ASSERT_TRUE(report->Get(expected_rtcp_transport.id()));
EXPECT_EQ(
expected_rtcp_transport,
report->Get(expected_rtcp_transport.id())->cast_to<RTCTransportStats>());
// Get stats with an active connection (selected candidate pair).
rtcp_transport_channel_stats.ice_transport_stats.connection_infos[0]
.best_connection = true;
pc_->SetTransportStats(kTransportName, {rtp_transport_channel_stats,
rtcp_transport_channel_stats});
report = stats_->GetFreshStatsReport();
expected_rtcp_transport.selected_candidate_pair_id =
"RTCIceCandidatePair_" + rtcp_local_candidate->id() + "_" +
rtcp_remote_candidate->id();
ASSERT_TRUE(report->Get(expected_rtp_transport.id()));
EXPECT_EQ(
expected_rtp_transport,
report->Get(expected_rtp_transport.id())->cast_to<RTCTransportStats>());
ASSERT_TRUE(report->Get(expected_rtcp_transport.id()));
EXPECT_EQ(
expected_rtcp_transport,
report->Get(expected_rtcp_transport.id())->cast_to<RTCTransportStats>());
// Get stats with certificates.
std::unique_ptr<CertificateInfo> local_certinfo =
CreateFakeCertificateAndInfoFromDers({"(local) local", "(local) chain"});
pc_->SetLocalCertificate(kTransportName, local_certinfo->certificate);
std::unique_ptr<CertificateInfo> remote_certinfo =
CreateFakeCertificateAndInfoFromDers(
{"(remote) local", "(remote) chain"});
pc_->SetRemoteCertChain(
kTransportName,
remote_certinfo->certificate->GetSSLCertificateChain().Clone());
report = stats_->GetFreshStatsReport();
expected_rtp_transport.local_certificate_id =
"RTCCertificate_" + local_certinfo->fingerprints[0];
expected_rtp_transport.remote_certificate_id =
"RTCCertificate_" + remote_certinfo->fingerprints[0];
expected_rtcp_transport.local_certificate_id =
*expected_rtp_transport.local_certificate_id;
expected_rtcp_transport.remote_certificate_id =
*expected_rtp_transport.remote_certificate_id;
ASSERT_TRUE(report->Get(expected_rtp_transport.id()));
EXPECT_EQ(
expected_rtp_transport,
report->Get(expected_rtp_transport.id())->cast_to<RTCTransportStats>());
ASSERT_TRUE(report->Get(expected_rtcp_transport.id()));
EXPECT_EQ(
expected_rtcp_transport,
report->Get(expected_rtcp_transport.id())->cast_to<RTCTransportStats>());
}
TEST_F(RTCStatsCollectorTest, CollectRTCTransportStatsWithCrypto) {
const char kTransportName[] = "transport";
pc_->AddVoiceChannel("audio", kTransportName);
std::unique_ptr<cricket::Candidate> rtp_local_candidate =
CreateFakeCandidate("42.42.42.42", 42, "protocol", rtc::ADAPTER_TYPE_WIFI,
cricket::LOCAL_PORT_TYPE, 42);
std::unique_ptr<cricket::Candidate> rtp_remote_candidate =
CreateFakeCandidate("42.42.42.42", 42, "protocol",
rtc::ADAPTER_TYPE_UNKNOWN, cricket::LOCAL_PORT_TYPE,
42);
std::unique_ptr<cricket::Candidate> rtcp_local_candidate =
CreateFakeCandidate("42.42.42.42", 42, "protocol", rtc::ADAPTER_TYPE_WIFI,
cricket::LOCAL_PORT_TYPE, 42);
std::unique_ptr<cricket::Candidate> rtcp_remote_candidate =
CreateFakeCandidate("42.42.42.42", 42, "protocol",
rtc::ADAPTER_TYPE_UNKNOWN, cricket::LOCAL_PORT_TYPE,
42);
cricket::ConnectionInfo rtp_connection_info;
rtp_connection_info.best_connection = false;
rtp_connection_info.local_candidate = *rtp_local_candidate.get();
rtp_connection_info.remote_candidate = *rtp_remote_candidate.get();
rtp_connection_info.sent_total_bytes = 42;
rtp_connection_info.recv_total_bytes = 1337;
cricket::TransportChannelStats rtp_transport_channel_stats;
rtp_transport_channel_stats.component = cricket::ICE_CANDIDATE_COMPONENT_RTP;
rtp_transport_channel_stats.ice_transport_stats.connection_infos.push_back(
rtp_connection_info);
// The state must be connected in order for crypto parameters to show up.
rtp_transport_channel_stats.dtls_state = cricket::DTLS_TRANSPORT_CONNECTED;
rtp_transport_channel_stats.ice_transport_stats
.selected_candidate_pair_changes = 1;
rtp_transport_channel_stats.ssl_version_bytes = 0x0203;
// 0x2F is TLS_RSA_WITH_AES_128_CBC_SHA according to IANA
rtp_transport_channel_stats.ssl_cipher_suite = 0x2F;
rtp_transport_channel_stats.srtp_crypto_suite = rtc::SRTP_AES128_CM_SHA1_80;
pc_->SetTransportStats(kTransportName, {rtp_transport_channel_stats});
// Get stats
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
RTCTransportStats expected_rtp_transport(
"RTCTransport_transport_" +
rtc::ToString(cricket::ICE_CANDIDATE_COMPONENT_RTP),
report->timestamp_us());
expected_rtp_transport.bytes_sent = 42;
expected_rtp_transport.bytes_received = 1337;
expected_rtp_transport.dtls_state = RTCDtlsTransportState::kConnected;
expected_rtp_transport.selected_candidate_pair_changes = 1;
// Crypto parameters
expected_rtp_transport.tls_version = "0203";
expected_rtp_transport.dtls_cipher = "TLS_RSA_WITH_AES_128_CBC_SHA";
expected_rtp_transport.srtp_cipher = "AES_CM_128_HMAC_SHA1_80";
ASSERT_TRUE(report->Get(expected_rtp_transport.id()));
EXPECT_EQ(
expected_rtp_transport,
report->Get(expected_rtp_transport.id())->cast_to<RTCTransportStats>());
}
TEST_F(RTCStatsCollectorTest, CollectNoStreamRTCOutboundRTPStreamStats_Audio) {
cricket::VoiceMediaInfo voice_media_info;
voice_media_info.senders.push_back(cricket::VoiceSenderInfo());
voice_media_info.senders[0].local_stats.push_back(cricket::SsrcSenderInfo());
voice_media_info.senders[0].local_stats[0].ssrc = 1;
voice_media_info.senders[0].packets_sent = 2;
voice_media_info.senders[0].retransmitted_packets_sent = 20;
voice_media_info.senders[0].payload_bytes_sent = 3;
voice_media_info.senders[0].header_and_padding_bytes_sent = 4;
voice_media_info.senders[0].retransmitted_bytes_sent = 30;
voice_media_info.senders[0].codec_payload_type = 42;
RtpCodecParameters codec_parameters;
codec_parameters.payload_type = 42;
codec_parameters.kind = cricket::MEDIA_TYPE_AUDIO;
codec_parameters.name = "dummy";
codec_parameters.clock_rate = 0;
voice_media_info.send_codecs.insert(
std::make_pair(codec_parameters.payload_type, codec_parameters));
// Emulates the case where AddTrack is used without an associated MediaStream
auto* voice_media_channel = pc_->AddVoiceChannel("AudioMid", "TransportName");
voice_media_channel->SetStats(voice_media_info);
stats_->SetupLocalTrackAndSender(cricket::MEDIA_TYPE_AUDIO,
"LocalAudioTrackID", 1, false,
/*attachment_id=*/50);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
RTCOutboundRTPStreamStats expected_audio("RTCOutboundRTPAudioStream_1",
report->timestamp_us());
expected_audio.media_source_id = "RTCAudioSource_50";
expected_audio.ssrc = 1;
expected_audio.is_remote = false;
expected_audio.media_type = "audio";
expected_audio.kind = "audio";
expected_audio.track_id = IdForType<RTCMediaStreamTrackStats>(report);
expected_audio.transport_id = "RTCTransport_TransportName_1";
expected_audio.codec_id = "RTCCodec_AudioMid_Outbound_42";
expected_audio.packets_sent = 2;
expected_audio.retransmitted_packets_sent = 20;
expected_audio.bytes_sent = 3;
expected_audio.header_bytes_sent = 4;
expected_audio.retransmitted_bytes_sent = 30;
ASSERT_TRUE(report->Get(expected_audio.id()));
EXPECT_EQ(
report->Get(expected_audio.id())->cast_to<RTCOutboundRTPStreamStats>(),
expected_audio);
EXPECT_TRUE(report->Get(*expected_audio.track_id));
EXPECT_TRUE(report->Get(*expected_audio.transport_id));
EXPECT_TRUE(report->Get(*expected_audio.codec_id));
}
TEST_F(RTCStatsCollectorTest, RTCAudioSourceStatsCollectedForSenderWithTrack) {
const uint32_t kSsrc = 4;
const int kAttachmentId = 42;
cricket::VoiceMediaInfo voice_media_info;
voice_media_info.senders.push_back(cricket::VoiceSenderInfo());
voice_media_info.senders[0].local_stats.push_back(cricket::SsrcSenderInfo());
voice_media_info.senders[0].local_stats[0].ssrc = kSsrc;
voice_media_info.senders[0].audio_level = 32767; // [0,32767]
voice_media_info.senders[0].total_input_energy = 2.0;
voice_media_info.senders[0].total_input_duration = 3.0;
auto* voice_media_channel = pc_->AddVoiceChannel("AudioMid", "TransportName");
voice_media_channel->SetStats(voice_media_info);
stats_->SetupLocalTrackAndSender(cricket::MEDIA_TYPE_AUDIO,
"LocalAudioTrackID", kSsrc, false,
kAttachmentId);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
RTCAudioSourceStats expected_audio("RTCAudioSource_42",
report->timestamp_us());
expected_audio.track_identifier = "LocalAudioTrackID";
expected_audio.kind = "audio";
expected_audio.audio_level = 1.0; // [0,1]
expected_audio.total_audio_energy = 2.0;
expected_audio.total_samples_duration = 3.0;
ASSERT_TRUE(report->Get(expected_audio.id()));
EXPECT_EQ(report->Get(expected_audio.id())->cast_to<RTCAudioSourceStats>(),
expected_audio);
}
TEST_F(RTCStatsCollectorTest, RTCVideoSourceStatsCollectedForSenderWithTrack) {
const uint32_t kSsrc = 4;
const int kAttachmentId = 42;
const int kVideoSourceWidth = 12;
const int kVideoSourceHeight = 34;
cricket::VideoMediaInfo video_media_info;
video_media_info.aggregated_senders.push_back(cricket::VideoSenderInfo());
video_media_info.senders.push_back(cricket::VideoSenderInfo());
video_media_info.senders[0].local_stats.push_back(cricket::SsrcSenderInfo());
video_media_info.senders[0].local_stats[0].ssrc = kSsrc;
video_media_info.senders[0].framerate_input = 29;
video_media_info.aggregated_senders[0].local_stats.push_back(
cricket::SsrcSenderInfo());
video_media_info.aggregated_senders[0].local_stats[0].ssrc = kSsrc;
video_media_info.aggregated_senders[0].framerate_input = 29;
auto* video_media_channel = pc_->AddVideoChannel("VideoMid", "TransportName");
video_media_channel->SetStats(video_media_info);
auto video_source = FakeVideoTrackSourceForStats::Create(kVideoSourceWidth,
kVideoSourceHeight);
auto video_track = FakeVideoTrackForStats::Create(
"LocalVideoTrackID", MediaStreamTrackInterface::kLive, video_source);
rtc::scoped_refptr<MockRtpSenderInternal> sender = CreateMockSender(
cricket::MEDIA_TYPE_VIDEO, video_track, kSsrc, kAttachmentId, {});
pc_->AddSender(sender);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
RTCVideoSourceStats expected_video("RTCVideoSource_42",
report->timestamp_us());
expected_video.track_identifier = "LocalVideoTrackID";
expected_video.kind = "video";
expected_video.width = kVideoSourceWidth;
expected_video.height = kVideoSourceHeight;
// |expected_video.frames| is expected to be undefined because it is not set.
// TODO(hbos): When implemented, set its expected value here.
expected_video.frames_per_second = 29;
ASSERT_TRUE(report->Get(expected_video.id()));
EXPECT_EQ(report->Get(expected_video.id())->cast_to<RTCVideoSourceStats>(),
expected_video);
}
// This test exercises the current behavior and code path, but the correct
// behavior is to report frame rate even if we have no SSRC.
// TODO(hbos): When we know the frame rate even if we have no SSRC, update the
// expectations of this test.
TEST_F(RTCStatsCollectorTest,
RTCVideoSourceStatsMissingFrameRateWhenSenderHasNoSsrc) {
// TODO(https://crbug.com/webrtc/8694): When 0 is no longer a magic value for
// "none", update this test.
const uint32_t kNoSsrc = 0;
const int kAttachmentId = 42;
const int kVideoSourceWidth = 12;
const int kVideoSourceHeight = 34;
cricket::VideoMediaInfo video_media_info;
video_media_info.senders.push_back(cricket::VideoSenderInfo());
video_media_info.senders[0].local_stats.push_back(cricket::SsrcSenderInfo());
video_media_info.senders[0].framerate_input = 29;
auto* video_media_channel = pc_->AddVideoChannel("VideoMid", "TransportName");
video_media_channel->SetStats(video_media_info);
auto video_source = FakeVideoTrackSourceForStats::Create(kVideoSourceWidth,
kVideoSourceHeight);
auto video_track = FakeVideoTrackForStats::Create(
"LocalVideoTrackID", MediaStreamTrackInterface::kLive, video_source);
rtc::scoped_refptr<MockRtpSenderInternal> sender = CreateMockSender(
cricket::MEDIA_TYPE_VIDEO, video_track, kNoSsrc, kAttachmentId, {});
pc_->AddSender(sender);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
ASSERT_TRUE(report->Get("RTCVideoSource_42"));
auto video_stats =
report->Get("RTCVideoSource_42")->cast_to<RTCVideoSourceStats>();
EXPECT_FALSE(video_stats.frames_per_second.is_defined());
}
// The track not having a source is not expected to be true in practise, but
// this is true in some tests relying on fakes. This test covers that code path.
TEST_F(RTCStatsCollectorTest,
RTCVideoSourceStatsMissingResolutionWhenTrackHasNoSource) {
const uint32_t kSsrc = 4;
const int kAttachmentId = 42;
cricket::VideoMediaInfo video_media_info;
video_media_info.senders.push_back(cricket::VideoSenderInfo());
video_media_info.senders[0].local_stats.push_back(cricket::SsrcSenderInfo());
video_media_info.senders[0].local_stats[0].ssrc = kSsrc;
video_media_info.senders[0].framerate_input = 29;
auto* video_media_channel = pc_->AddVideoChannel("VideoMid", "TransportName");
video_media_channel->SetStats(video_media_info);
auto video_track = FakeVideoTrackForStats::Create(
"LocalVideoTrackID", MediaStreamTrackInterface::kLive,
/*source=*/nullptr);
rtc::scoped_refptr<MockRtpSenderInternal> sender = CreateMockSender(
cricket::MEDIA_TYPE_VIDEO, video_track, kSsrc, kAttachmentId, {});
pc_->AddSender(sender);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
ASSERT_TRUE(report->Get("RTCVideoSource_42"));
auto video_stats =
report->Get("RTCVideoSource_42")->cast_to<RTCVideoSourceStats>();
EXPECT_FALSE(video_stats.width.is_defined());
EXPECT_FALSE(video_stats.height.is_defined());
}
TEST_F(RTCStatsCollectorTest,
RTCAudioSourceStatsNotCollectedForSenderWithoutTrack) {
const uint32_t kSsrc = 4;
const int kAttachmentId = 42;
cricket::VoiceMediaInfo voice_media_info;
voice_media_info.senders.push_back(cricket::VoiceSenderInfo());
voice_media_info.senders[0].local_stats.push_back(cricket::SsrcSenderInfo());
voice_media_info.senders[0].local_stats[0].ssrc = kSsrc;
auto* voice_media_channel = pc_->AddVoiceChannel("AudioMid", "TransportName");
voice_media_channel->SetStats(voice_media_info);
rtc::scoped_refptr<MockRtpSenderInternal> sender = CreateMockSender(
cricket::MEDIA_TYPE_AUDIO, /*track=*/nullptr, kSsrc, kAttachmentId, {});
pc_->AddSender(sender);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
EXPECT_FALSE(report->Get("RTCAudioSource_42"));
}
// Parameterized tests on cricket::MediaType (audio or video).
class RTCStatsCollectorTestWithParamKind
: public RTCStatsCollectorTest,
public ::testing::WithParamInterface<cricket::MediaType> {
public:
RTCStatsCollectorTestWithParamKind() : media_type_(GetParam()) {
RTC_DCHECK(media_type_ == cricket::MEDIA_TYPE_AUDIO ||
media_type_ == cricket::MEDIA_TYPE_VIDEO);
}
std::string MediaTypeUpperCase() const {
switch (media_type_) {
case cricket::MEDIA_TYPE_AUDIO:
return "Audio";
case cricket::MEDIA_TYPE_VIDEO:
return "Video";
case cricket::MEDIA_TYPE_DATA:
RTC_NOTREACHED();
return "";
}
}
std::string MediaTypeLowerCase() const {
std::string str = MediaTypeUpperCase();
std::transform(str.begin(), str.end(), str.begin(), ::tolower);
return str;
}
// Adds a sender and channel of the appropriate kind, creating a sender info
// with the report block's |source_ssrc| and report block data.
void AddSenderInfoAndMediaChannel(
std::string transport_name,
const std::vector<ReportBlockData>& report_block_datas,
absl::optional<RtpCodecParameters> codec) {
switch (media_type_) {
case cricket::MEDIA_TYPE_AUDIO: {
cricket::VoiceMediaInfo voice_media_info;
for (const auto& report_block_data : report_block_datas) {
cricket::VoiceSenderInfo sender;
sender.local_stats.push_back(cricket::SsrcSenderInfo());
sender.local_stats[0].ssrc =
report_block_data.report_block().source_ssrc;
if (codec.has_value()) {
sender.codec_payload_type = codec->payload_type;
voice_media_info.send_codecs.insert(
std::make_pair(codec->payload_type, *codec));
}
sender.report_block_datas.push_back(report_block_data);
voice_media_info.senders.push_back(sender);
}
auto* voice_media_channel = pc_->AddVoiceChannel("mid", transport_name);
voice_media_channel->SetStats(voice_media_info);
return;
}
case cricket::MEDIA_TYPE_VIDEO: {
cricket::VideoMediaInfo video_media_info;
for (const auto& report_block_data : report_block_datas) {
cricket::VideoSenderInfo sender;
sender.local_stats.push_back(cricket::SsrcSenderInfo());
sender.local_stats[0].ssrc =
report_block_data.report_block().source_ssrc;
if (codec.has_value()) {
sender.codec_payload_type = codec->payload_type;
video_media_info.send_codecs.insert(
std::make_pair(codec->payload_type, *codec));
}
sender.report_block_datas.push_back(report_block_data);
video_media_info.aggregated_senders.push_back(sender);
video_media_info.senders.push_back(sender);
}
auto* video_media_channel = pc_->AddVideoChannel("mid", transport_name);
video_media_channel->SetStats(video_media_info);
return;
}
case cricket::MEDIA_TYPE_DATA:
RTC_NOTREACHED();
}
}
protected:
cricket::MediaType media_type_;
};
// Verifies RTCRemoteInboundRtpStreamStats members that don't require
// RTCCodecStats (codecId, jitter) and without setting up an RTCP transport.
TEST_P(RTCStatsCollectorTestWithParamKind,
RTCRemoteInboundRtpStreamStatsCollectedFromReportBlock) {
const int64_t kReportBlockTimestampUtcUs = 123456789;
const int64_t kRoundTripTimeMs = 13000;
const double kRoundTripTimeSeconds = 13.0;
// The report block's timestamp cannot be from the future, set the fake clock
// to match.
fake_clock_.SetTime(Timestamp::Micros(kReportBlockTimestampUtcUs));
auto ssrcs = {12, 13};
std::vector<ReportBlockData> report_block_datas;
for (auto ssrc : ssrcs) {
RTCPReportBlock report_block;
// The remote-inbound-rtp SSRC and the outbound-rtp SSRC is the same as the
// |source_ssrc|, "SSRC of the RTP packet sender".
report_block.source_ssrc = ssrc;
report_block.packets_lost = 7;
ReportBlockData report_block_data;
report_block_data.SetReportBlock(report_block, kReportBlockTimestampUtcUs);
report_block_data.AddRoundTripTimeSample(1234);
// Only the last sample should be exposed as the
// |RTCRemoteInboundRtpStreamStats::round_trip_time|.
report_block_data.AddRoundTripTimeSample(kRoundTripTimeMs);
report_block_datas.push_back(report_block_data);
}
AddSenderInfoAndMediaChannel("TransportName", report_block_datas,
absl::nullopt);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
for (auto ssrc : ssrcs) {
std::string stream_id = "Stream_" + std::to_string(ssrc);
RTCRemoteInboundRtpStreamStats expected_remote_inbound_rtp(
"RTCRemoteInboundRtp" + MediaTypeUpperCase() + stream_id,
kReportBlockTimestampUtcUs);
expected_remote_inbound_rtp.ssrc = ssrc;
expected_remote_inbound_rtp.kind = MediaTypeLowerCase();
expected_remote_inbound_rtp.transport_id =
"RTCTransport_TransportName_1"; // 1 for RTP (we have no RTCP
// transport)
expected_remote_inbound_rtp.packets_lost = 7;
expected_remote_inbound_rtp.local_id =
"RTCOutboundRTP" + MediaTypeUpperCase() + stream_id;
expected_remote_inbound_rtp.round_trip_time = kRoundTripTimeSeconds;
// This test does not set up RTCCodecStats, so |codec_id| and |jitter| are
// expected to be missing. These are tested separately.
ASSERT_TRUE(report->Get(expected_remote_inbound_rtp.id()));
EXPECT_EQ(report->Get(expected_remote_inbound_rtp.id())
->cast_to<RTCRemoteInboundRtpStreamStats>(),
expected_remote_inbound_rtp);
EXPECT_TRUE(report->Get(*expected_remote_inbound_rtp.transport_id));
ASSERT_TRUE(report->Get(*expected_remote_inbound_rtp.local_id));
// Lookup works in both directions.
EXPECT_EQ(*report->Get(*expected_remote_inbound_rtp.local_id)
->cast_to<RTCOutboundRTPStreamStats>()
.remote_id,
expected_remote_inbound_rtp.id());
}
}
TEST_P(RTCStatsCollectorTestWithParamKind,
RTCRemoteInboundRtpStreamStatsWithTimestampFromReportBlock) {
const int64_t kReportBlockTimestampUtcUs = 123456789;
fake_clock_.SetTime(Timestamp::Micros(kReportBlockTimestampUtcUs));
RTCPReportBlock report_block;
// The remote-inbound-rtp SSRC and the outbound-rtp SSRC is the same as the
// |source_ssrc|, "SSRC of the RTP packet sender".
report_block.source_ssrc = 12;
ReportBlockData report_block_data;
report_block_data.SetReportBlock(report_block, kReportBlockTimestampUtcUs);
AddSenderInfoAndMediaChannel("TransportName", {report_block_data},
absl::nullopt);
// Advance time, it should be OK to have fresher reports than report blocks.
fake_clock_.AdvanceTime(TimeDelta::Micros(1234));
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
std::string remote_inbound_rtp_id =
"RTCRemoteInboundRtp" + MediaTypeUpperCase() + "Stream_12";
ASSERT_TRUE(report->Get(remote_inbound_rtp_id));
auto& remote_inbound_rtp = report->Get(remote_inbound_rtp_id)
->cast_to<RTCRemoteInboundRtpStreamStats>();
// Even though the report time is different, the remote-inbound-rtp timestamp
// is of the time that the report block was received.
EXPECT_EQ(kReportBlockTimestampUtcUs + 1234, report->timestamp_us());
EXPECT_EQ(kReportBlockTimestampUtcUs, remote_inbound_rtp.timestamp_us());
}
TEST_P(RTCStatsCollectorTestWithParamKind,
RTCRemoteInboundRtpStreamStatsWithCodecBasedMembers) {
const int64_t kReportBlockTimestampUtcUs = 123456789;
fake_clock_.SetTime(Timestamp::Micros(kReportBlockTimestampUtcUs));
RTCPReportBlock report_block;
// The remote-inbound-rtp SSRC and the outbound-rtp SSRC is the same as the
// |source_ssrc|, "SSRC of the RTP packet sender".
report_block.source_ssrc = 12;
report_block.jitter = 5000;
ReportBlockData report_block_data;
report_block_data.SetReportBlock(report_block, kReportBlockTimestampUtcUs);
RtpCodecParameters codec;
codec.payload_type = 3;
codec.kind = media_type_;
codec.clock_rate = 1000;
AddSenderInfoAndMediaChannel("TransportName", {report_block_data}, codec);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
std::string remote_inbound_rtp_id =
"RTCRemoteInboundRtp" + MediaTypeUpperCase() + "Stream_12";
ASSERT_TRUE(report->Get(remote_inbound_rtp_id));
auto& remote_inbound_rtp = report->Get(remote_inbound_rtp_id)
->cast_to<RTCRemoteInboundRtpStreamStats>();
EXPECT_TRUE(remote_inbound_rtp.codec_id.is_defined());
EXPECT_TRUE(report->Get(*remote_inbound_rtp.codec_id));
EXPECT_TRUE(remote_inbound_rtp.jitter.is_defined());
// The jitter (in seconds) is the report block's jitter divided by the codec's
// clock rate.
EXPECT_EQ(5.0, *remote_inbound_rtp.jitter);
}
TEST_P(RTCStatsCollectorTestWithParamKind,
RTCRemoteInboundRtpStreamStatsWithRtcpTransport) {
const int64_t kReportBlockTimestampUtcUs = 123456789;
fake_clock_.SetTime(Timestamp::Micros(kReportBlockTimestampUtcUs));
RTCPReportBlock report_block;
// The remote-inbound-rtp SSRC and the outbound-rtp SSRC is the same as the
// |source_ssrc|, "SSRC of the RTP packet sender".
report_block.source_ssrc = 12;
ReportBlockData report_block_data;
report_block_data.SetReportBlock(report_block, kReportBlockTimestampUtcUs);
cricket::TransportChannelStats rtp_transport_channel_stats;
rtp_transport_channel_stats.component = cricket::ICE_CANDIDATE_COMPONENT_RTP;
rtp_transport_channel_stats.dtls_state = cricket::DTLS_TRANSPORT_NEW;
cricket::TransportChannelStats rtcp_transport_channel_stats;
rtcp_transport_channel_stats.component =
cricket::ICE_CANDIDATE_COMPONENT_RTCP;
rtcp_transport_channel_stats.dtls_state = cricket::DTLS_TRANSPORT_NEW;
pc_->SetTransportStats("TransportName", {rtp_transport_channel_stats,
rtcp_transport_channel_stats});
AddSenderInfoAndMediaChannel("TransportName", {report_block_data},
absl::nullopt);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
std::string remote_inbound_rtp_id =
"RTCRemoteInboundRtp" + MediaTypeUpperCase() + "Stream_12";
ASSERT_TRUE(report->Get(remote_inbound_rtp_id));
auto& remote_inbound_rtp = report->Get(remote_inbound_rtp_id)
->cast_to<RTCRemoteInboundRtpStreamStats>();
EXPECT_TRUE(remote_inbound_rtp.transport_id.is_defined());
EXPECT_EQ("RTCTransport_TransportName_2", // 2 for RTCP
*remote_inbound_rtp.transport_id);
EXPECT_TRUE(report->Get(*remote_inbound_rtp.transport_id));
}
INSTANTIATE_TEST_SUITE_P(All,
RTCStatsCollectorTestWithParamKind,
::testing::Values(cricket::MEDIA_TYPE_AUDIO, // "/0"
cricket::MEDIA_TYPE_VIDEO)); // "/1"
TEST_F(RTCStatsCollectorTest,
RTCVideoSourceStatsNotCollectedForSenderWithoutTrack) {
const uint32_t kSsrc = 4;
const int kAttachmentId = 42;
cricket::VideoMediaInfo video_media_info;
video_media_info.senders.push_back(cricket::VideoSenderInfo());
video_media_info.senders[0].local_stats.push_back(cricket::SsrcSenderInfo());
video_media_info.senders[0].local_stats[0].ssrc = kSsrc;
video_media_info.senders[0].framerate_input = 29;
auto* video_media_channel = pc_->AddVideoChannel("VideoMid", "TransportName");
video_media_channel->SetStats(video_media_info);
rtc::scoped_refptr<MockRtpSenderInternal> sender = CreateMockSender(
cricket::MEDIA_TYPE_VIDEO, /*track=*/nullptr, kSsrc, kAttachmentId, {});
pc_->AddSender(sender);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
EXPECT_FALSE(report->Get("RTCVideoSource_42"));
}
TEST_F(RTCStatsCollectorTest, GetStatsWithSenderSelector) {
ExampleStatsGraph graph = SetupExampleStatsGraphForSelectorTests();
// Expected stats graph when filtered by sender:
//
// +--- track (sender)
// | ^
// | |
// | +--------- outbound-rtp
// | | | |
// | | v v
// | | codec (send) transport
// v v
// media-source
rtc::scoped_refptr<const RTCStatsReport> sender_report =
stats_->GetStatsReportWithSenderSelector(graph.sender);
EXPECT_TRUE(sender_report);
EXPECT_EQ(sender_report->timestamp_us(), graph.full_report->timestamp_us());
EXPECT_EQ(sender_report->size(), 5u);
EXPECT_TRUE(sender_report->Get(graph.send_codec_id));
EXPECT_FALSE(sender_report->Get(graph.recv_codec_id));
EXPECT_TRUE(sender_report->Get(graph.outbound_rtp_id));
EXPECT_FALSE(sender_report->Get(graph.inbound_rtp_id));
EXPECT_TRUE(sender_report->Get(graph.transport_id));
EXPECT_TRUE(sender_report->Get(graph.sender_track_id));
EXPECT_FALSE(sender_report->Get(graph.receiver_track_id));
EXPECT_FALSE(sender_report->Get(graph.remote_stream_id));
EXPECT_FALSE(sender_report->Get(graph.peer_connection_id));
EXPECT_TRUE(sender_report->Get(graph.media_source_id));
}
TEST_F(RTCStatsCollectorTest, GetStatsWithReceiverSelector) {
ExampleStatsGraph graph = SetupExampleStatsGraphForSelectorTests();
// Expected stats graph when filtered by receiver:
//
// track (receiver)
// ^
// |
// inbound-rtp ---------------+
// | |
// v v
// transport codec (recv)
rtc::scoped_refptr<const RTCStatsReport> receiver_report =
stats_->GetStatsReportWithReceiverSelector(graph.receiver);
EXPECT_TRUE(receiver_report);
EXPECT_EQ(receiver_report->size(), 4u);
EXPECT_EQ(receiver_report->timestamp_us(), graph.full_report->timestamp_us());
EXPECT_FALSE(receiver_report->Get(graph.send_codec_id));
EXPECT_TRUE(receiver_report->Get(graph.recv_codec_id));
EXPECT_FALSE(receiver_report->Get(graph.outbound_rtp_id));
EXPECT_TRUE(receiver_report->Get(graph.inbound_rtp_id));
EXPECT_TRUE(receiver_report->Get(graph.transport_id));
EXPECT_FALSE(receiver_report->Get(graph.sender_track_id));
EXPECT_TRUE(receiver_report->Get(graph.receiver_track_id));
EXPECT_FALSE(receiver_report->Get(graph.remote_stream_id));
EXPECT_FALSE(receiver_report->Get(graph.peer_connection_id));
EXPECT_FALSE(receiver_report->Get(graph.media_source_id));
}
TEST_F(RTCStatsCollectorTest, GetStatsWithNullSenderSelector) {
ExampleStatsGraph graph = SetupExampleStatsGraphForSelectorTests();
rtc::scoped_refptr<const RTCStatsReport> empty_report =
stats_->GetStatsReportWithSenderSelector(nullptr);
EXPECT_TRUE(empty_report);
EXPECT_EQ(empty_report->timestamp_us(), graph.full_report->timestamp_us());
EXPECT_EQ(empty_report->size(), 0u);
}
TEST_F(RTCStatsCollectorTest, GetStatsWithNullReceiverSelector) {
ExampleStatsGraph graph = SetupExampleStatsGraphForSelectorTests();
rtc::scoped_refptr<const RTCStatsReport> empty_report =
stats_->GetStatsReportWithReceiverSelector(nullptr);
EXPECT_TRUE(empty_report);
EXPECT_EQ(empty_report->timestamp_us(), graph.full_report->timestamp_us());
EXPECT_EQ(empty_report->size(), 0u);
}
// When the PC has not had SetLocalDescription done, tracks all have
// SSRC 0, meaning "unconnected".
// In this state, we report on track stats, but not RTP stats.
TEST_F(RTCStatsCollectorTest, StatsReportedOnZeroSsrc) {
rtc::scoped_refptr<MediaStreamTrackInterface> track =
CreateFakeTrack(cricket::MEDIA_TYPE_AUDIO, "audioTrack",
MediaStreamTrackInterface::kLive);
rtc::scoped_refptr<MockRtpSenderInternal> sender =
CreateMockSender(cricket::MEDIA_TYPE_AUDIO, track, 0, 49, {});
pc_->AddSender(sender);
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
std::vector<const RTCMediaStreamTrackStats*> track_stats =
report->GetStatsOfType<RTCMediaStreamTrackStats>();
EXPECT_EQ(1U, track_stats.size());
std::vector<const RTCRTPStreamStats*> rtp_stream_stats =
report->GetStatsOfType<RTCRTPStreamStats>();
EXPECT_EQ(0U, rtp_stream_stats.size());
}
TEST_F(RTCStatsCollectorTest, DoNotCrashOnSsrcChange) {
rtc::scoped_refptr<MediaStreamTrackInterface> track =
CreateFakeTrack(cricket::MEDIA_TYPE_AUDIO, "audioTrack",
MediaStreamTrackInterface::kLive);
rtc::scoped_refptr<MockRtpSenderInternal> sender =
CreateMockSender(cricket::MEDIA_TYPE_AUDIO, track, 4711, 49, {});
pc_->AddSender(sender);
// We do not generate any matching voice_sender_info stats.
rtc::scoped_refptr<const RTCStatsReport> report = stats_->GetStatsReport();
std::vector<const RTCMediaStreamTrackStats*> track_stats =
report->GetStatsOfType<RTCMediaStreamTrackStats>();
EXPECT_EQ(1U, track_stats.size());
}
// Used for test below, to test calling GetStatsReport during a callback.
class RecursiveCallback : public RTCStatsCollectorCallback {
public:
explicit RecursiveCallback(RTCStatsCollectorWrapper* stats) : stats_(stats) {}
void OnStatsDelivered(
const rtc::scoped_refptr<const RTCStatsReport>& report) override {
stats_->GetStatsReport();
called_ = true;
}
bool called() const { return called_; }
private:
RTCStatsCollectorWrapper* stats_;
bool called_ = false;
};
// Test that nothing bad happens if a callback causes GetStatsReport to be
// called again recursively. Regression test for crbug.com/webrtc/8973.
TEST_F(RTCStatsCollectorTest, DoNotCrashWhenGetStatsCalledDuringCallback) {
rtc::scoped_refptr<RecursiveCallback> callback1(
new rtc::RefCountedObject<RecursiveCallback>(stats_.get()));
rtc::scoped_refptr<RecursiveCallback> callback2(
new rtc::RefCountedObject<RecursiveCallback>(stats_.get()));
stats_->stats_collector()->GetStatsReport(callback1);
stats_->stats_collector()->GetStatsReport(callback2);
EXPECT_TRUE_WAIT(callback1->called(), kGetStatsReportTimeoutMs);
EXPECT_TRUE_WAIT(callback2->called(), kGetStatsReportTimeoutMs);
}
class RTCTestStats : public RTCStats {
public:
WEBRTC_RTCSTATS_DECL();
RTCTestStats(const std::string& id, int64_t timestamp_us)
: RTCStats(id, timestamp_us), dummy_stat("dummyStat") {}
RTCStatsMember<int32_t> dummy_stat;
};
WEBRTC_RTCSTATS_IMPL(RTCTestStats, RTCStats, "test-stats", &dummy_stat)
// Overrides the stats collection to verify thread usage and that the resulting
// partial reports are merged.
class FakeRTCStatsCollector : public RTCStatsCollector,
public RTCStatsCollectorCallback {
public:
static rtc::scoped_refptr<FakeRTCStatsCollector> Create(
PeerConnectionInternal* pc,
int64_t cache_lifetime_us) {
return rtc::scoped_refptr<FakeRTCStatsCollector>(
new rtc::RefCountedObject<FakeRTCStatsCollector>(pc,
cache_lifetime_us));
}
// RTCStatsCollectorCallback implementation.
void OnStatsDelivered(
const rtc::scoped_refptr<const RTCStatsReport>& report) override {
EXPECT_TRUE(signaling_thread_->IsCurrent());
MutexLock lock(&lock_);
delivered_report_ = report;
}
void VerifyThreadUsageAndResultsMerging() {
GetStatsReport(rtc::scoped_refptr<RTCStatsCollectorCallback>(this));
EXPECT_TRUE_WAIT(HasVerifiedResults(), kGetStatsReportTimeoutMs);
}
bool HasVerifiedResults() {
EXPECT_TRUE(signaling_thread_->IsCurrent());
MutexLock lock(&lock_);
if (!delivered_report_)
return false;
EXPECT_EQ(produced_on_signaling_thread_, 1);
EXPECT_EQ(produced_on_network_thread_, 1);
EXPECT_TRUE(delivered_report_->Get("SignalingThreadStats"));
EXPECT_TRUE(delivered_report_->Get("NetworkThreadStats"));
produced_on_signaling_thread_ = 0;
produced_on_network_thread_ = 0;
delivered_report_ = nullptr;
return true;
}
protected:
FakeRTCStatsCollector(PeerConnectionInternal* pc, int64_t cache_lifetime)
: RTCStatsCollector(pc, cache_lifetime),
signaling_thread_(pc->signaling_thread()),
worker_thread_(pc->worker_thread()),
network_thread_(pc->network_thread()) {}
void ProducePartialResultsOnSignalingThreadImpl(
int64_t timestamp_us,
RTCStatsReport* partial_report) override {
EXPECT_TRUE(signaling_thread_->IsCurrent());
{
MutexLock lock(&lock_);
EXPECT_FALSE(delivered_report_);
++produced_on_signaling_thread_;
}
partial_report->AddStats(std::unique_ptr<const RTCStats>(
new RTCTestStats("SignalingThreadStats", timestamp_us)));
}
void ProducePartialResultsOnNetworkThreadImpl(
int64_t timestamp_us,
const std::map<std::string, cricket::TransportStats>&
transport_stats_by_name,
const std::map<std::string, CertificateStatsPair>& transport_cert_stats,
RTCStatsReport* partial_report) override {
EXPECT_TRUE(network_thread_->IsCurrent());
{
MutexLock lock(&lock_);
EXPECT_FALSE(delivered_report_);
++produced_on_network_thread_;
}
partial_report->AddStats(std::unique_ptr<const RTCStats>(
new RTCTestStats("NetworkThreadStats", timestamp_us)));
}
private:
rtc::Thread* const signaling_thread_;
rtc::Thread* const worker_thread_;
rtc::Thread* const network_thread_;
Mutex lock_;
rtc::scoped_refptr<const RTCStatsReport> delivered_report_;
int produced_on_signaling_thread_ = 0;
int produced_on_network_thread_ = 0;
};
TEST(RTCStatsCollectorTestWithFakeCollector, ThreadUsageAndResultsMerging) {
rtc::scoped_refptr<FakePeerConnectionForStats> pc(
new rtc::RefCountedObject<FakePeerConnectionForStats>());
rtc::scoped_refptr<FakeRTCStatsCollector> stats_collector(
FakeRTCStatsCollector::Create(pc, 50 * rtc::kNumMicrosecsPerMillisec));
stats_collector->VerifyThreadUsageAndResultsMerging();
}
} // namespace
} // namespace webrtc
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