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9fbe9ae1c109dfd276fa99d7f79861ceeab015ed
platform-external-webrtc/test/pc/e2e/peer_connection_quality_test.cc
Artem Titov 9fbe9ae1c1 Add support of negotiating multiple codecs in PC framework 
Bug: webrtc:10138
Change-Id: Iec7df60a4185a039bd81de200c0691747e92c10c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/166601
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30318}
2020-01-20 12:13:04 +00:00

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/*
* Copyright (c) 2019 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 "test/pc/e2e/peer_connection_quality_test.h"
#include <algorithm>
#include <memory>
#include <set>
#include <utility>
#include "api/jsep.h"
#include "api/media_stream_interface.h"
#include "api/peer_connection_interface.h"
#include "api/rtc_event_log/rtc_event_log.h"
#include "api/rtc_event_log_output_file.h"
#include "api/scoped_refptr.h"
#include "api/task_queue/default_task_queue_factory.h"
#include "api/test/create_frame_generator.h"
#include "api/test/video_quality_analyzer_interface.h"
#include "api/units/time_delta.h"
#include "api/video/video_source_interface.h"
#include "pc/sdp_utils.h"
#include "pc/test/mock_peer_connection_observers.h"
#include "rtc_base/bind.h"
#include "rtc_base/gunit.h"
#include "rtc_base/numerics/safe_conversions.h"
#include "system_wrappers/include/cpu_info.h"
#include "system_wrappers/include/field_trial.h"
#include "test/frame_generator_capturer.h"
#include "test/pc/e2e/analyzer/audio/default_audio_quality_analyzer.h"
#include "test/pc/e2e/analyzer/video/default_video_quality_analyzer.h"
#include "test/pc/e2e/stats_poller.h"
#include "test/platform_video_capturer.h"
#include "test/testsupport/file_utils.h"
namespace webrtc {
namespace webrtc_pc_e2e {
namespace {
using VideoConfig = PeerConnectionE2EQualityTestFixture::VideoConfig;
using VideoCodecConfig = PeerConnectionE2EQualityTestFixture::VideoCodecConfig;
constexpr int kDefaultTimeoutMs = 10000;
constexpr char kSignalThreadName[] = "signaling_thread";
// 1 signaling, 2 network, 2 worker and 2 extra for codecs etc.
constexpr int kPeerConnectionUsedThreads = 7;
// Framework has extra thread for network layer and extra thread for peer
// connection stats polling.
constexpr int kFrameworkUsedThreads = 2;
constexpr int kMaxVideoAnalyzerThreads = 8;
constexpr TimeDelta kStatsUpdateInterval = TimeDelta::Seconds<1>();
constexpr TimeDelta kAliveMessageLogInterval = TimeDelta::Seconds<30>();
constexpr int kQuickTestModeRunDurationMs = 100;
// Field trials to enable Flex FEC advertising and receiving.
constexpr char kFlexFecEnabledFieldTrials[] =
"WebRTC-FlexFEC-03-Advertised/Enabled/WebRTC-FlexFEC-03/Enabled/";
std::string VideoConfigSourcePresenceToString(
const VideoConfig& video_config,
bool has_user_provided_generator) {
char buf[1024];
rtc::SimpleStringBuilder builder(buf);
builder << "video_config.generator=" << video_config.generator.has_value()
<< "; video_config.input_file_name="
<< video_config.input_file_name.has_value()
<< "; video_config.screen_share_config="
<< video_config.screen_share_config.has_value()
<< "; video_config.capturing_device_index="
<< video_config.capturing_device_index.has_value()
<< "; has_user_provided_generator=" << has_user_provided_generator
<< ";";
return builder.str();
}
class FixturePeerConnectionObserver : public MockPeerConnectionObserver {
public:
// |on_track_callback| will be called when any new track will be added to peer
// connection.
// |on_connected_callback| will be called when peer connection will come to
// either connected or completed state. Client should notice that in the case
// of reconnect this callback can be called again, so it should be tolerant
// to such behavior.
FixturePeerConnectionObserver(
std::function<void(rtc::scoped_refptr<RtpTransceiverInterface>)>
on_track_callback,
std::function<void()> on_connected_callback)
: on_track_callback_(std::move(on_track_callback)),
on_connected_callback_(std::move(on_connected_callback)) {}
void OnTrack(
rtc::scoped_refptr<RtpTransceiverInterface> transceiver) override {
MockPeerConnectionObserver::OnTrack(transceiver);
on_track_callback_(transceiver);
}
void OnIceConnectionChange(
PeerConnectionInterface::IceConnectionState new_state) override {
MockPeerConnectionObserver::OnIceConnectionChange(new_state);
if (ice_connected_) {
on_connected_callback_();
}
}
private:
std::function<void(rtc::scoped_refptr<RtpTransceiverInterface>)>
on_track_callback_;
std::function<void()> on_connected_callback_;
};
} // namespace
PeerConnectionE2EQualityTest::PeerConnectionE2EQualityTest(
std::string test_case_name,
std::unique_ptr<AudioQualityAnalyzerInterface> audio_quality_analyzer,
std::unique_ptr<VideoQualityAnalyzerInterface> video_quality_analyzer)
: clock_(Clock::GetRealTimeClock()),
task_queue_factory_(CreateDefaultTaskQueueFactory()),
test_case_name_(std::move(test_case_name)) {
// Create default video quality analyzer. We will always create an analyzer,
// even if there are no video streams, because it will be installed into video
// encoder/decoder factories.
if (video_quality_analyzer == nullptr) {
video_quality_analyzer = std::make_unique<DefaultVideoQualityAnalyzer>();
}
encoded_image_id_controller_ =
std::make_unique<SingleProcessEncodedImageDataInjector>();
video_quality_analyzer_injection_helper_ =
std::make_unique<VideoQualityAnalyzerInjectionHelper>(
std::move(video_quality_analyzer), encoded_image_id_controller_.get(),
encoded_image_id_controller_.get());
if (audio_quality_analyzer == nullptr) {
audio_quality_analyzer = std::make_unique<DefaultAudioQualityAnalyzer>();
}
audio_quality_analyzer_.swap(audio_quality_analyzer);
}
void PeerConnectionE2EQualityTest::ExecuteAt(
TimeDelta target_time_since_start,
std::function<void(TimeDelta)> func) {
ExecuteTask(target_time_since_start, absl::nullopt, func);
}
void PeerConnectionE2EQualityTest::ExecuteEvery(
TimeDelta initial_delay_since_start,
TimeDelta interval,
std::function<void(TimeDelta)> func) {
ExecuteTask(initial_delay_since_start, interval, func);
}
void PeerConnectionE2EQualityTest::ExecuteTask(
TimeDelta initial_delay_since_start,
absl::optional<TimeDelta> interval,
std::function<void(TimeDelta)> func) {
RTC_CHECK(initial_delay_since_start.IsFinite() &&
initial_delay_since_start >= TimeDelta::Zero());
RTC_CHECK(!interval ||
(interval->IsFinite() && *interval > TimeDelta::Zero()));
rtc::CritScope crit(&lock_);
ScheduledActivity activity(initial_delay_since_start, interval, func);
if (start_time_.IsInfinite()) {
scheduled_activities_.push(std::move(activity));
} else {
PostTask(std::move(activity));
}
}
void PeerConnectionE2EQualityTest::PostTask(ScheduledActivity activity) {
// Because start_time_ will never change at this point copy it to local
// variable to capture in in lambda without requirement to hold a lock.
Timestamp start_time = start_time_;
TimeDelta remaining_delay =
activity.initial_delay_since_start == TimeDelta::Zero()
? TimeDelta::Zero()
: activity.initial_delay_since_start - (Now() - start_time_);
if (remaining_delay < TimeDelta::Zero()) {
RTC_LOG(WARNING) << "Executing late task immediately, late by="
<< ToString(remaining_delay.Abs());
remaining_delay = TimeDelta::Zero();
}
if (activity.interval) {
if (remaining_delay == TimeDelta::Zero()) {
repeating_task_handles_.push_back(RepeatingTaskHandle::Start(
task_queue_->Get(), [activity, start_time, this]() {
activity.func(Now() - start_time);
return *activity.interval;
}));
return;
}
repeating_task_handles_.push_back(RepeatingTaskHandle::DelayedStart(
task_queue_->Get(), remaining_delay, [activity, start_time, this]() {
activity.func(Now() - start_time);
return *activity.interval;
}));
return;
}
if (remaining_delay == TimeDelta::Zero()) {
task_queue_->PostTask(
[activity, start_time, this]() { activity.func(Now() - start_time); });
return;
}
task_queue_->PostDelayedTask(
[activity, start_time, this]() { activity.func(Now() - start_time); },
remaining_delay.ms());
}
void PeerConnectionE2EQualityTest::AddQualityMetricsReporter(
std::unique_ptr<QualityMetricsReporter> quality_metrics_reporter) {
quality_metrics_reporters_.push_back(std::move(quality_metrics_reporter));
}
void PeerConnectionE2EQualityTest::AddPeer(
rtc::Thread* network_thread,
rtc::NetworkManager* network_manager,
rtc::FunctionView<void(PeerConfigurer*)> configurer) {
peer_configurations_.push_back(
std::make_unique<PeerConfigurerImpl>(network_thread, network_manager));
configurer(peer_configurations_.back().get());
}
void PeerConnectionE2EQualityTest::Run(RunParams run_params) {
RTC_CHECK_EQ(peer_configurations_.size(), 2)
<< "Only peer to peer calls are allowed, please add 2 peers";
std::unique_ptr<Params> alice_params =
peer_configurations_[0]->ReleaseParams();
std::unique_ptr<InjectableComponents> alice_components =
peer_configurations_[0]->ReleaseComponents();
std::vector<std::unique_ptr<test::FrameGeneratorInterface>>
alice_video_generators =
peer_configurations_[0]->ReleaseVideoGenerators();
std::unique_ptr<Params> bob_params = peer_configurations_[1]->ReleaseParams();
std::unique_ptr<InjectableComponents> bob_components =
peer_configurations_[1]->ReleaseComponents();
std::vector<std::unique_ptr<test::FrameGeneratorInterface>>
bob_video_generators = peer_configurations_[1]->ReleaseVideoGenerators();
peer_configurations_.clear();
SetDefaultValuesForMissingParams(
&run_params, {alice_params.get(), bob_params.get()},
{&alice_video_generators, &bob_video_generators});
ValidateParams(run_params, {alice_params.get(), bob_params.get()},
{&alice_video_generators, &bob_video_generators});
SetupRequiredFieldTrials(run_params);
// Print test summary
RTC_LOG(INFO)
<< "Media quality test: Alice will make a call to Bob with media video="
<< !alice_params->video_configs.empty()
<< "; audio=" << alice_params->audio_config.has_value()
<< ". Bob will respond with media video="
<< !bob_params->video_configs.empty()
<< "; audio=" << bob_params->audio_config.has_value();
const std::unique_ptr<rtc::Thread> signaling_thread = rtc::Thread::Create();
signaling_thread->SetName(kSignalThreadName, nullptr);
signaling_thread->Start();
// Create a |task_queue_|.
task_queue_ = std::make_unique<TaskQueueForTest>("pc_e2e_quality_test");
// Create call participants: Alice and Bob.
// Audio streams are intercepted in AudioDeviceModule, so if it is required to
// catch output of Alice's stream, Alice's output_dump_file_name should be
// passed to Bob's TestPeer setup as audio output file name.
absl::optional<TestPeer::RemotePeerAudioConfig> alice_remote_audio_config =
TestPeer::CreateRemoteAudioConfig(bob_params->audio_config);
absl::optional<TestPeer::RemotePeerAudioConfig> bob_remote_audio_config =
TestPeer::CreateRemoteAudioConfig(alice_params->audio_config);
// Copy Alice and Bob video configs to correctly pass them into lambdas.
std::vector<VideoConfig> alice_video_configs = alice_params->video_configs;
std::vector<VideoConfig> bob_video_configs = bob_params->video_configs;
alice_ = TestPeer::CreateTestPeer(
std::move(alice_components), std::move(alice_params),
std::move(alice_video_generators),
std::make_unique<FixturePeerConnectionObserver>(
[this, bob_video_configs](
rtc::scoped_refptr<RtpTransceiverInterface> transceiver) {
OnTrackCallback(transceiver, bob_video_configs);
},
[this]() { StartVideo(alice_video_sources_); }),
video_quality_analyzer_injection_helper_.get(), signaling_thread.get(),
alice_remote_audio_config, run_params.video_encoder_bitrate_multiplier,
run_params.echo_emulation_config, task_queue_.get());
bob_ = TestPeer::CreateTestPeer(
std::move(bob_components), std::move(bob_params),
std::move(bob_video_generators),
std::make_unique<FixturePeerConnectionObserver>(
[this, alice_video_configs](
rtc::scoped_refptr<RtpTransceiverInterface> transceiver) {
OnTrackCallback(transceiver, alice_video_configs);
},
[this]() { StartVideo(bob_video_sources_); }),
video_quality_analyzer_injection_helper_.get(), signaling_thread.get(),
bob_remote_audio_config, run_params.video_encoder_bitrate_multiplier,
run_params.echo_emulation_config, task_queue_.get());
int num_cores = CpuInfo::DetectNumberOfCores();
RTC_DCHECK_GE(num_cores, 1);
int video_analyzer_threads =
num_cores - kPeerConnectionUsedThreads - kFrameworkUsedThreads;
if (video_analyzer_threads <= 0) {
video_analyzer_threads = 1;
}
video_analyzer_threads =
std::min(video_analyzer_threads, kMaxVideoAnalyzerThreads);
RTC_LOG(INFO) << "video_analyzer_threads=" << video_analyzer_threads;
video_quality_analyzer_injection_helper_->Start(test_case_name_,
video_analyzer_threads);
audio_quality_analyzer_->Start(test_case_name_, &analyzer_helper_);
for (auto& reporter : quality_metrics_reporters_) {
reporter->Start(test_case_name_);
}
// Start RTCEventLog recording if requested.
if (alice_->params()->rtc_event_log_path) {
auto alice_rtc_event_log = std::make_unique<webrtc::RtcEventLogOutputFile>(
alice_->params()->rtc_event_log_path.value());
alice_->pc()->StartRtcEventLog(std::move(alice_rtc_event_log),
webrtc::RtcEventLog::kImmediateOutput);
}
if (bob_->params()->rtc_event_log_path) {
auto bob_rtc_event_log = std::make_unique<webrtc::RtcEventLogOutputFile>(
bob_->params()->rtc_event_log_path.value());
bob_->pc()->StartRtcEventLog(std::move(bob_rtc_event_log),
webrtc::RtcEventLog::kImmediateOutput);
}
// Setup alive logging. It is done to prevent test infra to think that test is
// dead.
RepeatingTaskHandle::DelayedStart(task_queue_->Get(),
kAliveMessageLogInterval, []() {
std::printf("Test is still running...\n");
return kAliveMessageLogInterval;
});
RTC_LOG(INFO) << "Configuration is done. Now Alice is calling to Bob...";
// Setup call.
signaling_thread->Invoke<void>(
RTC_FROM_HERE,
rtc::Bind(&PeerConnectionE2EQualityTest::SetupCallOnSignalingThread, this,
run_params));
{
rtc::CritScope crit(&lock_);
start_time_ = Now();
while (!scheduled_activities_.empty()) {
PostTask(std::move(scheduled_activities_.front()));
scheduled_activities_.pop();
}
}
std::vector<StatsObserverInterface*> observers = {
audio_quality_analyzer_.get(),
video_quality_analyzer_injection_helper_.get()};
for (auto& reporter : quality_metrics_reporters_) {
observers.push_back(reporter.get());
}
StatsPoller stats_poller(observers,
{{"alice", alice_.get()}, {"bob", bob_.get()}});
task_queue_->PostTask([&stats_poller, this]() {
RTC_DCHECK_RUN_ON(task_queue_.get());
stats_polling_task_ =
RepeatingTaskHandle::Start(task_queue_->Get(), [this, &stats_poller]() {
RTC_DCHECK_RUN_ON(task_queue_.get());
stats_poller.PollStatsAndNotifyObservers();
return kStatsUpdateInterval;
});
});
rtc::Event done;
bool is_quick_test_enabled = field_trial::IsEnabled("WebRTC-QuickPerfTest");
if (is_quick_test_enabled) {
done.Wait(kQuickTestModeRunDurationMs);
} else {
done.Wait(run_params.run_duration.ms());
}
RTC_LOG(INFO) << "Test is done, initiating disconnect sequence.";
task_queue_->SendTask(
[&stats_poller, this]() {
RTC_DCHECK_RUN_ON(task_queue_.get());
stats_polling_task_.Stop();
// Get final end-of-call stats.
stats_poller.PollStatsAndNotifyObservers();
},
RTC_FROM_HERE);
// We need to detach AEC dumping from peers, because dump uses |task_queue_|
// inside.
alice_->DetachAecDump();
bob_->DetachAecDump();
// Stop all client started tasks on task queue to prevent their access to any
// call related objects after these objects will be destroyed during call tear
// down.
task_queue_->SendTask(
[this]() {
rtc::CritScope crit(&lock_);
for (auto& handle : repeating_task_handles_) {
handle.Stop();
}
},
RTC_FROM_HERE);
// Tear down the call.
signaling_thread->Invoke<void>(
RTC_FROM_HERE,
rtc::Bind(&PeerConnectionE2EQualityTest::TearDownCallOnSignalingThread,
this));
Timestamp end_time = Now();
RTC_LOG(INFO) << "All peers are disconnected.";
{
rtc::CritScope crit(&lock_);
real_test_duration_ = end_time - start_time_;
}
audio_quality_analyzer_->Stop();
video_quality_analyzer_injection_helper_->Stop();
for (auto& reporter : quality_metrics_reporters_) {
reporter->StopAndReportResults();
}
// Reset |task_queue_| after test to cleanup.
task_queue_.reset();
// Ensuring that TestPeers have been destroyed in order to correctly close
// Audio dumps.
RTC_CHECK(!alice_);
RTC_CHECK(!bob_);
// Ensuring that TestVideoCapturerVideoTrackSource and VideoFrameWriter
// are destroyed on the right thread.
RTC_CHECK(alice_video_sources_.empty());
RTC_CHECK(bob_video_sources_.empty());
RTC_CHECK(video_writers_.empty());
}
void PeerConnectionE2EQualityTest::SetDefaultValuesForMissingParams(
RunParams* run_params,
std::vector<Params*> params,
std::vector<std::vector<std::unique_ptr<test::FrameGeneratorInterface>>*>
video_generators) {
int video_counter = 0;
int audio_counter = 0;
std::set<std::string> video_labels;
std::set<std::string> audio_labels;
for (size_t i = 0; i < params.size(); ++i) {
auto* p = params[i];
for (size_t j = 0; j < p->video_configs.size(); ++j) {
VideoConfig& video_config = p->video_configs[j];
std::unique_ptr<test::FrameGeneratorInterface>& video_generator =
(*video_generators[i])[j];
if (!video_config.generator && !video_config.input_file_name &&
!video_config.screen_share_config &&
!video_config.capturing_device_index && !video_generator) {
video_config.generator = VideoGeneratorType::kDefault;
}
if (!video_config.stream_label) {
std::string label;
do {
label = "_auto_video_stream_label_" + std::to_string(video_counter);
++video_counter;
} while (!video_labels.insert(label).second);
video_config.stream_label = label;
}
}
if (p->audio_config) {
if (!p->audio_config->stream_label) {
std::string label;
do {
label = "_auto_audio_stream_label_" + std::to_string(audio_counter);
++audio_counter;
} while (!audio_labels.insert(label).second);
p->audio_config->stream_label = label;
}
}
}
if (run_params->video_codecs.empty()) {
run_params->video_codecs.push_back(VideoCodecConfig(
run_params->video_codec_name, run_params->video_codec_required_params));
}
}
void PeerConnectionE2EQualityTest::ValidateParams(
const RunParams& run_params,
std::vector<Params*> params,
std::vector<std::vector<std::unique_ptr<test::FrameGeneratorInterface>>*>
video_generators) {
RTC_CHECK_GT(run_params.video_encoder_bitrate_multiplier, 0.0);
std::set<std::string> video_labels;
std::set<std::string> audio_labels;
int media_streams_count = 0;
for (size_t i = 0; i < params.size(); ++i) {
Params* p = params[i];
if (p->audio_config) {
media_streams_count++;
}
media_streams_count += p->video_configs.size();
// Validate that each video config has exactly one of |generator|,
// |input_file_name| or |screen_share_config| set. Also validate that all
// video stream labels are unique.
for (size_t j = 0; j < p->video_configs.size(); ++j) {
VideoConfig& video_config = p->video_configs[j];
RTC_CHECK(video_config.stream_label);
bool inserted =
video_labels.insert(video_config.stream_label.value()).second;
RTC_CHECK(inserted) << "Duplicate video_config.stream_label="
<< video_config.stream_label.value();
int input_sources_count = 0;
if (video_config.generator)
++input_sources_count;
if (video_config.input_file_name)
++input_sources_count;
if (video_config.screen_share_config)
++input_sources_count;
if (video_config.capturing_device_index)
++input_sources_count;
if ((*video_generators[i])[j])
++input_sources_count;
// TODO(titovartem) handle video_generators case properly
RTC_CHECK_EQ(input_sources_count, 1) << VideoConfigSourcePresenceToString(
video_config, (*video_generators[i])[j] != nullptr);
if (video_config.screen_share_config) {
if (video_config.screen_share_config->slides_yuv_file_names.empty()) {
if (video_config.screen_share_config->scrolling_params) {
// If we have scrolling params, then its |source_width| and
// |source_heigh| will be used as width and height of video input,
// so we have to validate it against width and height of default
// input.
RTC_CHECK_EQ(video_config.screen_share_config->scrolling_params
->source_width,
kDefaultSlidesWidth);
RTC_CHECK_EQ(video_config.screen_share_config->scrolling_params
->source_height,
kDefaultSlidesHeight);
} else {
RTC_CHECK_EQ(video_config.width, kDefaultSlidesWidth);
RTC_CHECK_EQ(video_config.height, kDefaultSlidesHeight);
}
}
if (video_config.screen_share_config->scrolling_params) {
RTC_CHECK_LE(
video_config.screen_share_config->scrolling_params->duration,
video_config.screen_share_config->slide_change_interval);
RTC_CHECK_GE(
video_config.screen_share_config->scrolling_params->source_width,
video_config.width);
RTC_CHECK_GE(
video_config.screen_share_config->scrolling_params->source_height,
video_config.height);
}
}
if (video_config.simulcast_config) {
// We support simulcast only from caller.
RTC_CHECK_EQ(i, 0)
<< "Only simulcast stream from first peer is supported";
RTC_CHECK(!video_config.max_encode_bitrate_bps)
<< "Setting max encode bitrate is not implemented for simulcast.";
RTC_CHECK(!video_config.min_encode_bitrate_bps)
<< "Setting min encode bitrate is not implemented for simulcast.";
}
}
if (p->audio_config) {
bool inserted =
audio_labels.insert(p->audio_config->stream_label.value()).second;
RTC_CHECK(inserted) << "Duplicate audio_config.stream_label="
<< p->audio_config->stream_label.value();
// Check that if mode input file name specified only if mode is kFile.
if (p->audio_config.value().mode == AudioConfig::Mode::kGenerated) {
RTC_CHECK(!p->audio_config.value().input_file_name);
}
if (p->audio_config.value().mode == AudioConfig::Mode::kFile) {
RTC_CHECK(p->audio_config.value().input_file_name);
RTC_CHECK(
test::FileExists(p->audio_config.value().input_file_name.value()))
<< p->audio_config.value().input_file_name.value()
<< " doesn't exist";
}
}
}
RTC_CHECK_GT(media_streams_count, 0) << "No media in the call.";
}
void PeerConnectionE2EQualityTest::SetupRequiredFieldTrials(
const RunParams& run_params) {
std::string field_trials = "";
if (run_params.use_flex_fec) {
field_trials += kFlexFecEnabledFieldTrials;
}
if (!field_trials.empty()) {
override_field_trials_ = std::make_unique<test::ScopedFieldTrials>(
field_trial::GetFieldTrialString() + field_trials);
}
}
void PeerConnectionE2EQualityTest::OnTrackCallback(
rtc::scoped_refptr<RtpTransceiverInterface> transceiver,
std::vector<VideoConfig> remote_video_configs) {
const rtc::scoped_refptr<MediaStreamTrackInterface>& track =
transceiver->receiver()->track();
RTC_CHECK_EQ(transceiver->receiver()->stream_ids().size(), 1);
std::string stream_label = transceiver->receiver()->stream_ids().front();
analyzer_helper_.AddTrackToStreamMapping(track->id(), stream_label);
if (track->kind() != MediaStreamTrackInterface::kVideoKind) {
return;
}
VideoConfig* video_config = nullptr;
for (auto& config : remote_video_configs) {
if (config.stream_label == stream_label) {
video_config = &config;
break;
}
}
RTC_CHECK(video_config);
test::VideoFrameWriter* writer = MaybeCreateVideoWriter(
video_config->output_dump_file_name, *video_config);
// It is safe to cast here, because it is checked above that
// track->kind() is kVideoKind.
auto* video_track = static_cast<VideoTrackInterface*>(track.get());
std::unique_ptr<rtc::VideoSinkInterface<VideoFrame>> video_sink =
video_quality_analyzer_injection_helper_->CreateVideoSink(*video_config,
writer);
video_track->AddOrUpdateSink(video_sink.get(), rtc::VideoSinkWants());
output_video_sinks_.push_back(std::move(video_sink));
}
void PeerConnectionE2EQualityTest::SetupCallOnSignalingThread(
const RunParams& run_params) {
// We need receive-only transceivers for Bob's media stream, so there will
// be media section in SDP for that streams in Alice's offer, because it is
// forbidden to add new media sections in answer in Unified Plan.
RtpTransceiverInit receive_only_transceiver_init;
receive_only_transceiver_init.direction = RtpTransceiverDirection::kRecvOnly;
int alice_transceivers_counter = 0;
if (bob_->params()->audio_config) {
// Setup receive audio transceiver if Bob has audio to send. If we'll need
// multiple audio streams, then we need transceiver for each Bob's audio
// stream.
RTCErrorOr<rtc::scoped_refptr<RtpTransceiverInterface>> result =
alice_->AddTransceiver(cricket::MediaType::MEDIA_TYPE_AUDIO,
receive_only_transceiver_init);
RTC_CHECK(result.ok());
alice_transceivers_counter++;
}
size_t alice_video_transceivers_non_simulcast_counter = 0;
for (auto& video_config : alice_->params()->video_configs) {
RtpTransceiverInit transceiver_params;
if (video_config.simulcast_config) {
transceiver_params.direction = RtpTransceiverDirection::kSendOnly;
if (run_params.video_codec_name == cricket::kVp8CodecName) {
// For Vp8 simulcast we need to add as many RtpEncodingParameters to the
// track as many simulcast streams requested.
for (int i = 0;
i < video_config.simulcast_config->simulcast_streams_count; ++i) {
RtpEncodingParameters enc_params;
// We need to be sure, that all rids will be unique with all mids.
enc_params.rid = std::to_string(alice_transceivers_counter) + "000" +
std::to_string(i);
transceiver_params.send_encodings.push_back(enc_params);
}
}
} else {
transceiver_params.direction = RtpTransceiverDirection::kSendRecv;
RtpEncodingParameters enc_params;
enc_params.max_bitrate_bps = video_config.max_encode_bitrate_bps;
enc_params.min_bitrate_bps = video_config.min_encode_bitrate_bps;
transceiver_params.send_encodings.push_back(enc_params);
alice_video_transceivers_non_simulcast_counter++;
}
RTCErrorOr<rtc::scoped_refptr<RtpTransceiverInterface>> result =
alice_->AddTransceiver(cricket::MediaType::MEDIA_TYPE_VIDEO,
transceiver_params);
RTC_CHECK(result.ok());
alice_transceivers_counter++;
}
// Add receive only transceivers in case Bob has more video_configs than
// Alice.
for (size_t i = alice_video_transceivers_non_simulcast_counter;
i < bob_->params()->video_configs.size(); ++i) {
RTCErrorOr<rtc::scoped_refptr<RtpTransceiverInterface>> result =
alice_->AddTransceiver(cricket::MediaType::MEDIA_TYPE_VIDEO,
receive_only_transceiver_init);
RTC_CHECK(result.ok());
alice_transceivers_counter++;
}
// Then add media for Alice and Bob
alice_video_sources_ = MaybeAddMedia(alice_.get());
bob_video_sources_ = MaybeAddMedia(bob_.get());
SetPeerCodecPreferences(alice_.get(), run_params);
SetPeerCodecPreferences(bob_.get(), run_params);
SetupCall(run_params);
}
void PeerConnectionE2EQualityTest::TearDownCallOnSignalingThread() {
TearDownCall();
}
std::vector<rtc::scoped_refptr<TestVideoCapturerVideoTrackSource>>
PeerConnectionE2EQualityTest::MaybeAddMedia(TestPeer* peer) {
MaybeAddAudio(peer);
return MaybeAddVideo(peer);
}
std::vector<rtc::scoped_refptr<TestVideoCapturerVideoTrackSource>>
PeerConnectionE2EQualityTest::MaybeAddVideo(TestPeer* peer) {
// Params here valid because of pre-run validation.
Params* params = peer->params();
std::vector<rtc::scoped_refptr<TestVideoCapturerVideoTrackSource>> out;
for (size_t i = 0; i < params->video_configs.size(); ++i) {
auto video_config = params->video_configs[i];
// Setup input video source into peer connection.
test::VideoFrameWriter* writer =
MaybeCreateVideoWriter(video_config.input_dump_file_name, video_config);
std::unique_ptr<test::TestVideoCapturer> capturer = CreateVideoCapturer(
video_config, peer->ReleaseVideoGenerator(i),
video_quality_analyzer_injection_helper_->CreateFramePreprocessor(
video_config, writer));
rtc::scoped_refptr<TestVideoCapturerVideoTrackSource> source =
new rtc::RefCountedObject<TestVideoCapturerVideoTrackSource>(
std::move(capturer),
/*is_screencast=*/video_config.screen_share_config &&
video_config.screen_share_config->use_text_content_hint);
out.push_back(source);
RTC_LOG(INFO) << "Adding video with video_config.stream_label="
<< video_config.stream_label.value();
rtc::scoped_refptr<VideoTrackInterface> track =
peer->pc_factory()->CreateVideoTrack(video_config.stream_label.value(),
source);
if (video_config.screen_share_config &&
video_config.screen_share_config->use_text_content_hint) {
track->set_content_hint(VideoTrackInterface::ContentHint::kText);
}
RTCErrorOr<rtc::scoped_refptr<RtpSenderInterface>> sender =
peer->AddTrack(track, {video_config.stream_label.value()});
RTC_CHECK(sender.ok());
if (video_config.temporal_layers_count) {
RtpParameters rtp_parameters = sender.value()->GetParameters();
for (auto& encoding_parameters : rtp_parameters.encodings) {
encoding_parameters.num_temporal_layers =
video_config.temporal_layers_count;
}
RTCError res = sender.value()->SetParameters(rtp_parameters);
RTC_CHECK(res.ok()) << "Failed to set RTP parameters";
}
}
return out;
}
std::unique_ptr<test::TestVideoCapturer>
PeerConnectionE2EQualityTest::CreateVideoCapturer(
const VideoConfig& video_config,
std::unique_ptr<test::FrameGeneratorInterface> generator,
std::unique_ptr<test::TestVideoCapturer::FramePreprocessor>
frame_preprocessor) {
if (video_config.capturing_device_index) {
std::unique_ptr<test::TestVideoCapturer> capturer =
test::CreateVideoCapturer(video_config.width, video_config.height,
video_config.fps,
*video_config.capturing_device_index);
RTC_CHECK(capturer)
<< "Failed to obtain input stream from capturing device #"
<< *video_config.capturing_device_index;
capturer->SetFramePreprocessor(std::move(frame_preprocessor));
return capturer;
}
std::unique_ptr<test::FrameGeneratorInterface> frame_generator = nullptr;
if (generator) {
frame_generator = std::move(generator);
}
if (video_config.generator) {
absl::optional<test::FrameGeneratorInterface::OutputType>
frame_generator_type = absl::nullopt;
if (video_config.generator == VideoGeneratorType::kDefault) {
frame_generator_type = test::FrameGeneratorInterface::OutputType::kI420;
} else if (video_config.generator == VideoGeneratorType::kI420A) {
frame_generator_type = test::FrameGeneratorInterface::OutputType::kI420A;
} else if (video_config.generator == VideoGeneratorType::kI010) {
frame_generator_type = test::FrameGeneratorInterface::OutputType::kI010;
}
frame_generator =
test::CreateSquareFrameGenerator(static_cast<int>(video_config.width),
static_cast<int>(video_config.height),
frame_generator_type, absl::nullopt);
}
if (video_config.input_file_name) {
frame_generator = test::CreateFromYuvFileFrameGenerator(
std::vector<std::string>(/*count=*/1,
video_config.input_file_name.value()),
video_config.width, video_config.height, /*frame_repeat_count=*/1);
}
if (video_config.screen_share_config) {
frame_generator = CreateScreenShareFrameGenerator(video_config);
}
RTC_CHECK(frame_generator) << "Unsupported video_config input source";
auto capturer = std::make_unique<test::FrameGeneratorCapturer>(
clock_, std::move(frame_generator), video_config.fps,
*task_queue_factory_);
capturer->SetFramePreprocessor(std::move(frame_preprocessor));
capturer->Init();
return capturer;
}
std::unique_ptr<test::FrameGeneratorInterface>
PeerConnectionE2EQualityTest::CreateScreenShareFrameGenerator(
const VideoConfig& video_config) {
RTC_CHECK(video_config.screen_share_config);
if (video_config.screen_share_config->generate_slides) {
return test::CreateSlideFrameGenerator(
video_config.width, video_config.height,
video_config.screen_share_config->slide_change_interval.seconds() *
video_config.fps);
}
std::vector<std::string> slides =
video_config.screen_share_config->slides_yuv_file_names;
if (slides.empty()) {
// If slides is empty we need to add default slides as source. In such case
// video width and height is validated to be equal to kDefaultSlidesWidth
// and kDefaultSlidesHeight.
slides.push_back(test::ResourcePath("web_screenshot_1850_1110", "yuv"));
slides.push_back(test::ResourcePath("presentation_1850_1110", "yuv"));
slides.push_back(test::ResourcePath("photo_1850_1110", "yuv"));
slides.push_back(test::ResourcePath("difficult_photo_1850_1110", "yuv"));
}
if (!video_config.screen_share_config->scrolling_params) {
// Cycle image every slide_change_interval seconds.
return test::CreateFromYuvFileFrameGenerator(
slides, video_config.width, video_config.height,
video_config.screen_share_config->slide_change_interval.seconds() *
video_config.fps);
}
// |pause_duration| is nonnegative. It is validated in ValidateParams(...).
TimeDelta pause_duration =
video_config.screen_share_config->slide_change_interval -
video_config.screen_share_config->scrolling_params->duration;
return test::CreateScrollingInputFromYuvFilesFrameGenerator(
clock_, slides,
video_config.screen_share_config->scrolling_params->source_width,
video_config.screen_share_config->scrolling_params->source_height,
video_config.width, video_config.height,
video_config.screen_share_config->scrolling_params->duration.ms(),
pause_duration.ms());
}
void PeerConnectionE2EQualityTest::MaybeAddAudio(TestPeer* peer) {
if (!peer->params()->audio_config) {
return;
}
const AudioConfig& audio_config = peer->params()->audio_config.value();
rtc::scoped_refptr<webrtc::AudioSourceInterface> source =
peer->pc_factory()->CreateAudioSource(audio_config.audio_options);
rtc::scoped_refptr<AudioTrackInterface> track =
peer->pc_factory()->CreateAudioTrack(*audio_config.stream_label, source);
peer->AddTrack(track, {*audio_config.stream_label});
}
void PeerConnectionE2EQualityTest::SetPeerCodecPreferences(
TestPeer* peer,
const RunParams& run_params) {
std::vector<RtpCodecCapability> with_rtx_video_capabilities =
FilterVideoCodecCapabilities(
run_params.video_codecs, true, run_params.use_ulp_fec,
run_params.use_flex_fec,
peer->pc_factory()
->GetRtpSenderCapabilities(cricket::MediaType::MEDIA_TYPE_VIDEO)
.codecs);
std::vector<RtpCodecCapability> without_rtx_video_capabilities =
FilterVideoCodecCapabilities(
run_params.video_codecs, false, run_params.use_ulp_fec,
run_params.use_flex_fec,
peer->pc_factory()
->GetRtpSenderCapabilities(cricket::MediaType::MEDIA_TYPE_VIDEO)
.codecs);
// Set codecs for transceivers
for (auto transceiver : peer->pc()->GetTransceivers()) {
if (transceiver->media_type() == cricket::MediaType::MEDIA_TYPE_VIDEO) {
if (transceiver->sender()->init_send_encodings().size() > 1) {
// If transceiver's sender has more then 1 send encodings, it means it
// has multiple simulcast streams, so we need disable RTX on it.
RTCError result =
transceiver->SetCodecPreferences(without_rtx_video_capabilities);
RTC_CHECK(result.ok());
} else {
RTCError result =
transceiver->SetCodecPreferences(with_rtx_video_capabilities);
RTC_CHECK(result.ok());
}
}
}
}
void PeerConnectionE2EQualityTest::SetupCall(const RunParams& run_params) {
std::map<std::string, int> stream_label_to_simulcast_streams_count;
// We add only Alice here, because simulcast/svc is supported only from the
// first peer.
for (auto& video_config : alice_->params()->video_configs) {
if (video_config.simulcast_config) {
stream_label_to_simulcast_streams_count.insert(
{*video_config.stream_label,
video_config.simulcast_config->simulcast_streams_count});
}
}
PatchingParams patching_params(run_params.video_codec_name,
run_params.use_conference_mode,
stream_label_to_simulcast_streams_count);
SignalingInterceptor signaling_interceptor(patching_params);
// Connect peers.
ExchangeOfferAnswer(&signaling_interceptor);
// Do the SDP negotiation, and also exchange ice candidates.
ASSERT_EQ_WAIT(alice_->signaling_state(), PeerConnectionInterface::kStable,
kDefaultTimeoutMs);
ASSERT_TRUE_WAIT(alice_->IsIceGatheringDone(), kDefaultTimeoutMs);
ASSERT_TRUE_WAIT(bob_->IsIceGatheringDone(), kDefaultTimeoutMs);
ExchangeIceCandidates(&signaling_interceptor);
// This means that ICE and DTLS are connected.
ASSERT_TRUE_WAIT(bob_->IsIceConnected(), kDefaultTimeoutMs);
ASSERT_TRUE_WAIT(alice_->IsIceConnected(), kDefaultTimeoutMs);
RTC_LOG(INFO) << "Call is started (all peers are connected).";
}
void PeerConnectionE2EQualityTest::ExchangeOfferAnswer(
SignalingInterceptor* signaling_interceptor) {
std::string log_output;
auto offer = alice_->CreateOffer();
RTC_CHECK(offer);
offer->ToString(&log_output);
RTC_LOG(INFO) << "Original offer: " << log_output;
LocalAndRemoteSdp patch_result =
signaling_interceptor->PatchOffer(std::move(offer));
patch_result.local_sdp->ToString(&log_output);
RTC_LOG(INFO) << "Offer to set as local description: " << log_output;
patch_result.remote_sdp->ToString(&log_output);
RTC_LOG(INFO) << "Offer to set as remote description: " << log_output;
bool set_local_offer =
alice_->SetLocalDescription(std::move(patch_result.local_sdp));
RTC_CHECK(set_local_offer);
bool set_remote_offer =
bob_->SetRemoteDescription(std::move(patch_result.remote_sdp));
RTC_CHECK(set_remote_offer);
auto answer = bob_->CreateAnswer();
RTC_CHECK(answer);
answer->ToString(&log_output);
RTC_LOG(INFO) << "Original answer: " << log_output;
patch_result = signaling_interceptor->PatchAnswer(std::move(answer));
patch_result.local_sdp->ToString(&log_output);
RTC_LOG(INFO) << "Answer to set as local description: " << log_output;
patch_result.remote_sdp->ToString(&log_output);
RTC_LOG(INFO) << "Answer to set as remote description: " << log_output;
bool set_local_answer =
bob_->SetLocalDescription(std::move(patch_result.local_sdp));
RTC_CHECK(set_local_answer);
bool set_remote_answer =
alice_->SetRemoteDescription(std::move(patch_result.remote_sdp));
RTC_CHECK(set_remote_answer);
}
void PeerConnectionE2EQualityTest::ExchangeIceCandidates(
SignalingInterceptor* signaling_interceptor) {
// Connect an ICE candidate pairs.
std::vector<std::unique_ptr<IceCandidateInterface>> alice_candidates =
signaling_interceptor->PatchOffererIceCandidates(
alice_->observer()->GetAllCandidates());
for (auto& candidate : alice_candidates) {
std::string candidate_str;
RTC_CHECK(candidate->ToString(&candidate_str));
RTC_LOG(INFO) << "Alice ICE candidate(mid= " << candidate->sdp_mid()
<< "): " << candidate_str;
}
ASSERT_TRUE(bob_->AddIceCandidates(std::move(alice_candidates)));
std::vector<std::unique_ptr<IceCandidateInterface>> bob_candidates =
signaling_interceptor->PatchAnswererIceCandidates(
bob_->observer()->GetAllCandidates());
for (auto& candidate : bob_candidates) {
std::string candidate_str;
RTC_CHECK(candidate->ToString(&candidate_str));
RTC_LOG(INFO) << "Bob ICE candidate(mid= " << candidate->sdp_mid()
<< "): " << candidate_str;
}
ASSERT_TRUE(alice_->AddIceCandidates(std::move(bob_candidates)));
}
void PeerConnectionE2EQualityTest::StartVideo(
const std::vector<rtc::scoped_refptr<TestVideoCapturerVideoTrackSource>>&
sources) {
for (auto& source : sources) {
if (source->state() != MediaSourceInterface::SourceState::kLive) {
source->Start();
}
}
}
void PeerConnectionE2EQualityTest::TearDownCall() {
for (const auto& video_source : alice_video_sources_) {
video_source->Stop();
}
for (const auto& video_source : bob_video_sources_) {
video_source->Stop();
}
alice_->pc()->Close();
bob_->pc()->Close();
alice_video_sources_.clear();
bob_video_sources_.clear();
alice_.reset();
bob_.reset();
for (const auto& video_writer : video_writers_) {
video_writer->Close();
}
video_writers_.clear();
}
test::VideoFrameWriter* PeerConnectionE2EQualityTest::MaybeCreateVideoWriter(
absl::optional<std::string> file_name,
const VideoConfig& config) {
if (!file_name) {
return nullptr;
}
// TODO(titovartem) create only one file writer for simulcast video track.
auto video_writer = std::make_unique<test::Y4mVideoFrameWriterImpl>(
file_name.value(), config.width, config.height, config.fps);
test::VideoFrameWriter* out = video_writer.get();
video_writers_.push_back(std::move(video_writer));
return out;
}
Timestamp PeerConnectionE2EQualityTest::Now() const {
return clock_->CurrentTime();
}
PeerConnectionE2EQualityTest::ScheduledActivity::ScheduledActivity(
TimeDelta initial_delay_since_start,
absl::optional<TimeDelta> interval,
std::function<void(TimeDelta)> func)
: initial_delay_since_start(initial_delay_since_start),
interval(interval),
func(std::move(func)) {}
} // namespace webrtc_pc_e2e
} // namespace webrtc
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