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pbos@webrtc.org5ab75672013-12-16 12:24:441/*
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10#include <functional>
11#include <list>
kwibergb25345e2016-03-12 14:10:4412#include <memory>
pbos@webrtc.org5ab75672013-12-16 12:24:4413#include <string>
14
Ali Tofigh6364d082022-03-14 12:32:0415#include "absl/strings/string_view.h"
Artem Titov33f9d2b2019-12-05 14:59:0016#include "api/test/create_frame_generator.h"
Mirko Bonadei92ea95e2017-09-15 04:47:3117#include "call/call.h"
Artem Titovdd2eebe2018-08-20 11:27:4518#include "call/fake_network_pipe.h"
19#include "call/simulated_network.h"
Mirko Bonadei92ea95e2017-09-15 04:47:3120#include "rtc_base/checks.h"
21#include "rtc_base/event.h"
22#include "rtc_base/logging.h"
Markus Handell8fe932a2020-07-06 15:41:3523#include "rtc_base/synchronization/mutex.h"
Danil Chapovalov82a3f0a2019-10-21 07:24:2724#include "rtc_base/task_queue_for_test.h"
Mirko Bonadei92ea95e2017-09-15 04:47:3125#include "rtc_base/thread_annotations.h"
26#include "test/call_test.h"
27#include "test/direct_transport.h"
28#include "test/encoder_settings.h"
29#include "test/fake_decoder.h"
30#include "test/fake_encoder.h"
31#include "test/frame_generator_capturer.h"
32#include "test/gtest.h"
pbos@webrtc.org5ab75672013-12-16 12:24:4433
34namespace webrtc {
andresp@webrtc.orgb941fe82014-07-07 08:50:4835namespace {
Fredrik Solenberg23fba1f2015-04-29 13:24:0136// Note: If you consider to re-use this class, think twice and instead consider
Peter Boström7c704b82015-12-04 15:13:0537// writing tests that don't depend on the logging system.
38class LogObserver {
andresp@webrtc.orgb941fe82014-07-07 08:50:4839 public:
Peter Boström7c704b82015-12-04 15:13:0540 LogObserver() { rtc::LogMessage::AddLogToStream(&callback_, rtc::LS_INFO); }
andresp@webrtc.orgb941fe82014-07-07 08:50:4841
Peter Boström7c704b82015-12-04 15:13:0542 ~LogObserver() { rtc::LogMessage::RemoveLogToStream(&callback_); }
andresp@webrtc.orgb941fe82014-07-07 08:50:4843
Ali Tofigh641a1b12022-05-17 09:48:4644 void PushExpectedLogLine(absl::string_view expected_log_line) {
andresp@webrtc.orgb941fe82014-07-07 08:50:4845 callback_.PushExpectedLogLine(expected_log_line);
46 }
47
Peter Boström5811a392015-12-10 12:02:5048 bool Wait() { return callback_.Wait(); }
andresp@webrtc.orgb941fe82014-07-07 08:50:4849
50 private:
Peter Boström7c704b82015-12-04 15:13:0551 class Callback : public rtc::LogSink {
andresp@webrtc.orgb941fe82014-07-07 08:50:4852 public:
Peter Boström7c704b82015-12-04 15:13:0553 void OnLogMessage(const std::string& message) override {
Ali Tofigh6364d082022-03-14 12:32:0454 OnLogMessage(absl::string_view(message));
55 }
56
57 void OnLogMessage(absl::string_view message) override {
Markus Handell8fe932a2020-07-06 15:41:3558 MutexLock lock(&mutex_);
Peter Boström7c704b82015-12-04 15:13:0559 // Ignore log lines that are due to missing AST extensions, these are
60 // logged when we switch back from AST to TOF until the wrapping bitrate
61 // estimator gives up on using AST.
Ali Tofigh6364d082022-03-14 12:32:0462 if (message.find("BitrateEstimator") != absl::string_view::npos &&
63 message.find("packet is missing") == absl::string_view::npos) {
64 received_log_lines_.push_back(std::string(message));
andresp@webrtc.orgb941fe82014-07-07 08:50:4865 }
Peter Boström7c704b82015-12-04 15:13:0566
andresp@webrtc.orgb941fe82014-07-07 08:50:4867 int num_popped = 0;
68 while (!received_log_lines_.empty() && !expected_log_lines_.empty()) {
69 std::string a = received_log_lines_.front();
70 std::string b = expected_log_lines_.front();
71 received_log_lines_.pop_front();
72 expected_log_lines_.pop_front();
73 num_popped++;
Ali Tofigh6364d082022-03-14 12:32:0474 EXPECT_TRUE(a.find(b) != absl::string_view::npos) << a << " != " << b;
andresp@webrtc.orgb941fe82014-07-07 08:50:4875 }
Benjamin Wright41f9f2c2019-03-14 01:03:2976 if (expected_log_lines_.empty()) {
andresp@webrtc.orgb941fe82014-07-07 08:50:4877 if (num_popped > 0) {
Peter Boström5811a392015-12-10 12:02:5078 done_.Set();
andresp@webrtc.orgb941fe82014-07-07 08:50:4879 }
80 return;
81 }
82 }
83
Markus Handell2cfc1af2022-08-19 08:16:4884 bool Wait() { return done_.Wait(test::CallTest::kDefaultTimeout); }
andresp@webrtc.orgb941fe82014-07-07 08:50:4885
Ali Tofigh641a1b12022-05-17 09:48:4686 void PushExpectedLogLine(absl::string_view expected_log_line) {
Markus Handell8fe932a2020-07-06 15:41:3587 MutexLock lock(&mutex_);
Ali Tofigh641a1b12022-05-17 09:48:4688 expected_log_lines_.emplace_back(expected_log_line);
andresp@webrtc.orgb941fe82014-07-07 08:50:4889 }
90
91 private:
92 typedef std::list<std::string> Strings;
Markus Handell8fe932a2020-07-06 15:41:3593 Mutex mutex_;
94 Strings received_log_lines_ RTC_GUARDED_BY(mutex_);
95 Strings expected_log_lines_ RTC_GUARDED_BY(mutex_);
Peter Boström5811a392015-12-10 12:02:5096 rtc::Event done_;
andresp@webrtc.orgb941fe82014-07-07 08:50:4897 };
98
99 Callback callback_;
100};
101} // namespace
pbos@webrtc.org5ab75672013-12-16 12:24:44102
103static const int kTOFExtensionId = 4;
104static const int kASTExtensionId = 5;
105
pbos@webrtc.org994d0b72014-06-27 08:47:52106class BitrateEstimatorTest : public test::CallTest {
pbos@webrtc.org5ab75672013-12-16 12:24:44107 public:
aleloi5d78e8d2016-11-08 11:44:54108 BitrateEstimatorTest() : receive_config_(nullptr) {}
pbos@webrtc.org5ab75672013-12-16 12:24:44109
Fredrik Solenberg0ccae132015-11-03 09:15:49110 virtual ~BitrateEstimatorTest() { EXPECT_TRUE(streams_.empty()); }
pbos@webrtc.org5ab75672013-12-16 12:24:44111
112 virtual void SetUp() {
Danil Chapovalove519f382022-08-11 10:26:09113 SendTask(task_queue(), [this]() {
Sebastian Jansson8e6602f2018-07-13 08:43:20114 CreateCalls();
pbos@webrtc.org5ab75672013-12-16 12:24:44115
eladalon413ee9a2017-08-22 11:02:52116 send_transport_.reset(new test::DirectTransport(
Danil Chapovalovd15a0282019-10-22 08:48:17117 task_queue(),
Mirko Bonadei317a1f02019-09-17 15:06:18118 std::make_unique<FakeNetworkPipe>(
119 Clock::GetRealTimeClock(), std::make_unique<SimulatedNetwork>(
Artem Titov75e36472018-10-08 10:28:56120 BuiltInNetworkBehaviorConfig())),
Artem Titovdd2eebe2018-08-20 11:27:45121 sender_call_.get(), payload_type_map_));
eladalon413ee9a2017-08-22 11:02:52122 send_transport_->SetReceiver(receiver_call_->Receiver());
123 receive_transport_.reset(new test::DirectTransport(
Danil Chapovalovd15a0282019-10-22 08:48:17124 task_queue(),
Mirko Bonadei317a1f02019-09-17 15:06:18125 std::make_unique<FakeNetworkPipe>(
126 Clock::GetRealTimeClock(), std::make_unique<SimulatedNetwork>(
Artem Titov75e36472018-10-08 10:28:56127 BuiltInNetworkBehaviorConfig())),
Artem Titovdd2eebe2018-08-20 11:27:45128 receiver_call_.get(), payload_type_map_));
eladalon413ee9a2017-08-22 11:02:52129 receive_transport_->SetReceiver(sender_call_->Receiver());
pbos@webrtc.org5ab75672013-12-16 12:24:44130
Sebastian Janssonf33905d2018-07-13 07:49:00131 VideoSendStream::Config video_send_config(send_transport_.get());
132 video_send_config.rtp.ssrcs.push_back(kVideoSendSsrcs[0]);
133 video_send_config.encoder_settings.encoder_factory =
Niels Möller4db138e2018-04-19 07:04:13134 &fake_encoder_factory_;
Jiawei Ouc2ebe212018-11-08 18:02:56135 video_send_config.encoder_settings.bitrate_allocator_factory =
136 bitrate_allocator_factory_.get();
Sebastian Janssonf33905d2018-07-13 07:49:00137 video_send_config.rtp.payload_name = "FAKE";
138 video_send_config.rtp.payload_type = kFakeVideoSendPayloadType;
139 SetVideoSendConfig(video_send_config);
140 VideoEncoderConfig video_encoder_config;
141 test::FillEncoderConfiguration(kVideoCodecVP8, 1, &video_encoder_config);
142 SetVideoEncoderConfig(video_encoder_config);
pbos@webrtc.org5ab75672013-12-16 12:24:44143
Tommif6f45432022-05-20 13:21:20144 receive_config_ =
145 VideoReceiveStreamInterface::Config(receive_transport_.get());
eladalon413ee9a2017-08-22 11:02:52146 // receive_config_.decoders will be set by every stream separately.
Sebastian Janssonf33905d2018-07-13 07:49:00147 receive_config_.rtp.remote_ssrc = GetVideoSendConfig()->rtp.ssrcs[0];
eladalon413ee9a2017-08-22 11:02:52148 receive_config_.rtp.local_ssrc = kReceiverLocalVideoSsrc;
eladalon413ee9a2017-08-22 11:02:52149 receive_config_.rtp.extensions.push_back(
150 RtpExtension(RtpExtension::kTimestampOffsetUri, kTOFExtensionId));
151 receive_config_.rtp.extensions.push_back(
152 RtpExtension(RtpExtension::kAbsSendTimeUri, kASTExtensionId));
153 });
pbos@webrtc.org5ab75672013-12-16 12:24:44154 }
155
156 virtual void TearDown() {
Danil Chapovalove519f382022-08-11 10:26:09157 SendTask(task_queue(), [this]() {
Yusuke Suzukif8d8d6d2018-05-17 13:01:13158 for (auto* stream : streams_) {
159 stream->StopSending();
160 delete stream;
eladalon413ee9a2017-08-22 11:02:52161 }
Yusuke Suzukif8d8d6d2018-05-17 13:01:13162 streams_.clear();
pbos@webrtc.org5ab75672013-12-16 12:24:44163
eladalon413ee9a2017-08-22 11:02:52164 send_transport_.reset();
165 receive_transport_.reset();
pbos@webrtc.org5ab75672013-12-16 12:24:44166
Sebastian Jansson8e6602f2018-07-13 08:43:20167 DestroyCalls();
eladalon413ee9a2017-08-22 11:02:52168 });
pbos@webrtc.org5ab75672013-12-16 12:24:44169 }
170
171 protected:
172 friend class Stream;
173
pbos@webrtc.org5ab75672013-12-16 12:24:44174 class Stream {
175 public:
aleloi5d78e8d2016-11-08 11:44:54176 explicit Stream(BitrateEstimatorTest* test)
pbos@webrtc.org5ab75672013-12-16 12:24:44177 : test_(test),
178 is_sending_receiving_(false),
pbos@webrtc.org2b4ce3a2015-03-23 13:12:24179 send_stream_(nullptr),
pbos@webrtc.org5ab75672013-12-16 12:24:44180 frame_generator_capturer_(),
Niels Möllercbcbc222018-09-28 07:07:24181 decoder_factory_(
Mirko Bonadei317a1f02019-09-17 15:06:18182 []() { return std::make_unique<test::FakeDecoder>(); }) {
Sebastian Janssonf33905d2018-07-13 07:49:00183 test_->GetVideoSendConfig()->rtp.ssrcs[0]++;
pbos@webrtc.org6ae48c62014-06-06 10:49:19184 send_stream_ = test_->sender_call_->CreateVideoSendStream(
Sebastian Janssonf33905d2018-07-13 07:49:00185 test_->GetVideoSendConfig()->Copy(),
186 test_->GetVideoEncoderConfig()->Copy());
187 RTC_DCHECK_EQ(1, test_->GetVideoEncoderConfig()->number_of_streams);
Danil Chapovalov81687b32019-04-18 13:39:53188 frame_generator_capturer_ =
Mirko Bonadei317a1f02019-09-17 15:06:18189 std::make_unique<test::FrameGeneratorCapturer>(
Danil Chapovalov81687b32019-04-18 13:39:53190 test->clock_,
Artem Titov33f9d2b2019-12-05 14:59:00191 test::CreateSquareFrameGenerator(kDefaultWidth, kDefaultHeight,
192 absl::nullopt, absl::nullopt),
Danil Chapovalov81687b32019-04-18 13:39:53193 kDefaultFramerate, *test->task_queue_factory_);
194 frame_generator_capturer_->Init();
Taylor Brandstetter49fcc102018-05-16 21:20:41195 send_stream_->SetSource(frame_generator_capturer_.get(),
196 DegradationPreference::MAINTAIN_FRAMERATE);
pbos@webrtc.orga5c8d2c2014-04-24 11:13:21197 send_stream_->Start();
pbos@webrtc.org5ab75672013-12-16 12:24:44198
Tommif6f45432022-05-20 13:21:20199 VideoReceiveStreamInterface::Decoder decoder;
Philip Eliasson2b068ce2020-08-03 15:55:10200 test_->receive_config_.decoder_factory = &decoder_factory_;
Sebastian Janssonf33905d2018-07-13 07:49:00201 decoder.payload_type = test_->GetVideoSendConfig()->rtp.payload_type;
Niels Möllercb7e1d22018-09-11 13:56:04202 decoder.video_format =
203 SdpVideoFormat(test_->GetVideoSendConfig()->rtp.payload_name);
aleloi5d78e8d2016-11-08 11:44:54204 test_->receive_config_.decoders.clear();
205 test_->receive_config_.decoders.push_back(decoder);
206 test_->receive_config_.rtp.remote_ssrc =
Sebastian Janssonf33905d2018-07-13 07:49:00207 test_->GetVideoSendConfig()->rtp.ssrcs[0];
aleloi5d78e8d2016-11-08 11:44:54208 test_->receive_config_.rtp.local_ssrc++;
209 test_->receive_config_.renderer = &test->fake_renderer_;
210 video_receive_stream_ = test_->receiver_call_->CreateVideoReceiveStream(
211 test_->receive_config_.Copy());
212 video_receive_stream_->Start();
pbos@webrtc.org5ab75672013-12-16 12:24:44213 is_sending_receiving_ = true;
214 }
215
216 ~Stream() {
Fredrik Solenberg23fba1f2015-04-29 13:24:01217 EXPECT_FALSE(is_sending_receiving_);
perkj9fdbda62016-09-15 16:19:20218 test_->sender_call_->DestroyVideoSendStream(send_stream_);
perkja49cbd32016-09-16 14:53:41219 frame_generator_capturer_.reset(nullptr);
pbos@webrtc.org2b4ce3a2015-03-23 13:12:24220 send_stream_ = nullptr;
Fredrik Solenberg23fba1f2015-04-29 13:24:01221 if (video_receive_stream_) {
222 test_->receiver_call_->DestroyVideoReceiveStream(video_receive_stream_);
223 video_receive_stream_ = nullptr;
224 }
pbos@webrtc.org5ab75672013-12-16 12:24:44225 }
226
227 void StopSending() {
228 if (is_sending_receiving_) {
pbos@webrtc.orga5c8d2c2014-04-24 11:13:21229 send_stream_->Stop();
Fredrik Solenberg23fba1f2015-04-29 13:24:01230 if (video_receive_stream_) {
231 video_receive_stream_->Stop();
232 }
pbos@webrtc.org5ab75672013-12-16 12:24:44233 is_sending_receiving_ = false;
234 }
235 }
236
237 private:
238 BitrateEstimatorTest* test_;
239 bool is_sending_receiving_;
240 VideoSendStream* send_stream_;
Tommif6f45432022-05-20 13:21:20241 VideoReceiveStreamInterface* video_receive_stream_;
kwibergb25345e2016-03-12 14:10:44242 std::unique_ptr<test::FrameGeneratorCapturer> frame_generator_capturer_;
Niels Möllercbcbc222018-09-28 07:07:24243
244 test::FunctionVideoDecoderFactory decoder_factory_;
pbos@webrtc.org5ab75672013-12-16 12:24:44245 };
246
Peter Boström7c704b82015-12-04 15:13:05247 LogObserver receiver_log_;
kwibergb25345e2016-03-12 14:10:44248 std::unique_ptr<test::DirectTransport> send_transport_;
249 std::unique_ptr<test::DirectTransport> receive_transport_;
Tommif6f45432022-05-20 13:21:20250 VideoReceiveStreamInterface::Config receive_config_;
pbos@webrtc.org5ab75672013-12-16 12:24:44251 std::vector<Stream*> streams_;
252};
253
Erik Språng468e62a2015-07-06 08:50:47254static const char* kAbsSendTimeLog =
255 "RemoteBitrateEstimatorAbsSendTime: Instantiating.";
256static const char* kSingleStreamLog =
257 "RemoteBitrateEstimatorSingleStream: Instantiating.";
258
Fredrik Solenberg23fba1f2015-04-29 13:24:01259TEST_F(BitrateEstimatorTest, InstantiatesTOFPerDefaultForVideo) {
Danil Chapovalove519f382022-08-11 10:26:09260 SendTask(task_queue(), [this]() {
Sebastian Janssonf33905d2018-07-13 07:49:00261 GetVideoSendConfig()->rtp.extensions.push_back(
eladalon413ee9a2017-08-22 11:02:52262 RtpExtension(RtpExtension::kTimestampOffsetUri, kTOFExtensionId));
263 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
264 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
265 streams_.push_back(new Stream(this));
266 });
Peter Boström5811a392015-12-10 12:02:50267 EXPECT_TRUE(receiver_log_.Wait());
pbos@webrtc.org5ab75672013-12-16 12:24:44268}
269
Fredrik Solenberg23fba1f2015-04-29 13:24:01270TEST_F(BitrateEstimatorTest, ImmediatelySwitchToASTForVideo) {
Danil Chapovalove519f382022-08-11 10:26:09271 SendTask(task_queue(), [this]() {
Sebastian Janssonf33905d2018-07-13 07:49:00272 GetVideoSendConfig()->rtp.extensions.push_back(
eladalon413ee9a2017-08-22 11:02:52273 RtpExtension(RtpExtension::kAbsSendTimeUri, kASTExtensionId));
274 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
275 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
276 receiver_log_.PushExpectedLogLine("Switching to absolute send time RBE.");
277 receiver_log_.PushExpectedLogLine(kAbsSendTimeLog);
278 streams_.push_back(new Stream(this));
279 });
Peter Boström5811a392015-12-10 12:02:50280 EXPECT_TRUE(receiver_log_.Wait());
Fredrik Solenberg23fba1f2015-04-29 13:24:01281}
282
Fredrik Solenberg23fba1f2015-04-29 13:24:01283TEST_F(BitrateEstimatorTest, SwitchesToASTForVideo) {
Danil Chapovalove519f382022-08-11 10:26:09284 SendTask(task_queue(), [this]() {
Sebastian Janssonf33905d2018-07-13 07:49:00285 GetVideoSendConfig()->rtp.extensions.push_back(
eladalon413ee9a2017-08-22 11:02:52286 RtpExtension(RtpExtension::kTimestampOffsetUri, kTOFExtensionId));
287 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
288 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
289 streams_.push_back(new Stream(this));
290 });
Peter Boström5811a392015-12-10 12:02:50291 EXPECT_TRUE(receiver_log_.Wait());
pbos@webrtc.org5ab75672013-12-16 12:24:44292
Danil Chapovalove519f382022-08-11 10:26:09293 SendTask(task_queue(), [this]() {
Sebastian Janssonf33905d2018-07-13 07:49:00294 GetVideoSendConfig()->rtp.extensions[0] =
eladalon413ee9a2017-08-22 11:02:52295 RtpExtension(RtpExtension::kAbsSendTimeUri, kASTExtensionId);
296 receiver_log_.PushExpectedLogLine("Switching to absolute send time RBE.");
297 receiver_log_.PushExpectedLogLine(kAbsSendTimeLog);
298 streams_.push_back(new Stream(this));
299 });
Peter Boström5811a392015-12-10 12:02:50300 EXPECT_TRUE(receiver_log_.Wait());
pbos@webrtc.org5ab75672013-12-16 12:24:44301}
302
deadbeef1086ed62016-04-22 17:52:40303// This test is flaky. See webrtc:5790.
304TEST_F(BitrateEstimatorTest, DISABLED_SwitchesToASTThenBackToTOFForVideo) {
Danil Chapovalove519f382022-08-11 10:26:09305 SendTask(task_queue(), [this]() {
Sebastian Janssonf33905d2018-07-13 07:49:00306 GetVideoSendConfig()->rtp.extensions.push_back(
eladalon413ee9a2017-08-22 11:02:52307 RtpExtension(RtpExtension::kTimestampOffsetUri, kTOFExtensionId));
308 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
309 receiver_log_.PushExpectedLogLine(kAbsSendTimeLog);
310 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
311 streams_.push_back(new Stream(this));
312 });
Peter Boström5811a392015-12-10 12:02:50313 EXPECT_TRUE(receiver_log_.Wait());
pbos@webrtc.org5ab75672013-12-16 12:24:44314
Danil Chapovalove519f382022-08-11 10:26:09315 SendTask(task_queue(), [this]() {
Sebastian Janssonf33905d2018-07-13 07:49:00316 GetVideoSendConfig()->rtp.extensions[0] =
eladalon413ee9a2017-08-22 11:02:52317 RtpExtension(RtpExtension::kAbsSendTimeUri, kASTExtensionId);
318 receiver_log_.PushExpectedLogLine(kAbsSendTimeLog);
319 receiver_log_.PushExpectedLogLine("Switching to absolute send time RBE.");
320 streams_.push_back(new Stream(this));
321 });
Peter Boström5811a392015-12-10 12:02:50322 EXPECT_TRUE(receiver_log_.Wait());
pbos@webrtc.org5ab75672013-12-16 12:24:44323
Danil Chapovalove519f382022-08-11 10:26:09324 SendTask(task_queue(), [this]() {
Sebastian Janssonf33905d2018-07-13 07:49:00325 GetVideoSendConfig()->rtp.extensions[0] =
eladalon413ee9a2017-08-22 11:02:52326 RtpExtension(RtpExtension::kTimestampOffsetUri, kTOFExtensionId);
327 receiver_log_.PushExpectedLogLine(kAbsSendTimeLog);
328 receiver_log_.PushExpectedLogLine(
329 "WrappingBitrateEstimator: Switching to transmission time offset RBE.");
330 streams_.push_back(new Stream(this));
331 streams_[0]->StopSending();
332 streams_[1]->StopSending();
333 });
Peter Boström5811a392015-12-10 12:02:50334 EXPECT_TRUE(receiver_log_.Wait());
pbos@webrtc.org5ab75672013-12-16 12:24:44335}
336} // namespace webrtc