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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>
12#include <string>
13
14#include "testing/gtest/include/gtest/gtest.h"
15
solenberg566ef242015-11-06 23:34:4916#include "webrtc/audio_state.h"
pbos@webrtc.org2b4ce3a2015-03-23 13:12:2417#include "webrtc/base/checks.h"
Peter Boström5811a392015-12-10 12:02:5018#include "webrtc/base/event.h"
Peter Boström7c704b82015-12-04 15:13:0519#include "webrtc/base/logging.h"
kwiberg@webrtc.org00b8f6b2015-02-26 14:34:5520#include "webrtc/base/scoped_ptr.h"
pbos@webrtc.org38344ed2014-09-24 06:05:0021#include "webrtc/base/thread_annotations.h"
pbos@webrtc.org5ab75672013-12-16 12:24:4422#include "webrtc/call.h"
Henrik Kjellander98f53512015-10-28 17:17:4023#include "webrtc/system_wrappers/include/critical_section_wrapper.h"
Henrik Kjellander98f53512015-10-28 17:17:4024#include "webrtc/system_wrappers/include/trace.h"
pbos@webrtc.org994d0b72014-06-27 08:47:5225#include "webrtc/test/call_test.h"
pbos@webrtc.org5ab75672013-12-16 12:24:4426#include "webrtc/test/direct_transport.h"
pbos@webrtc.orgf577ae92014-03-19 08:43:5727#include "webrtc/test/encoder_settings.h"
pbos@webrtc.org5ab75672013-12-16 12:24:4428#include "webrtc/test/fake_decoder.h"
29#include "webrtc/test/fake_encoder.h"
Fredrik Solenberg0ccae132015-11-03 09:15:4930#include "webrtc/test/mock_voice_engine.h"
pbos@webrtc.org5ab75672013-12-16 12:24:4431#include "webrtc/test/frame_generator_capturer.h"
32
33namespace webrtc {
andresp@webrtc.orgb941fe82014-07-07 08:50:4834namespace {
Fredrik Solenberg23fba1f2015-04-29 13:24:0135// Note: If you consider to re-use this class, think twice and instead consider
Peter Boström7c704b82015-12-04 15:13:0536// writing tests that don't depend on the logging system.
37class LogObserver {
andresp@webrtc.orgb941fe82014-07-07 08:50:4838 public:
Peter Boström7c704b82015-12-04 15:13:0539 LogObserver() { rtc::LogMessage::AddLogToStream(&callback_, rtc::LS_INFO); }
andresp@webrtc.orgb941fe82014-07-07 08:50:4840
Peter Boström7c704b82015-12-04 15:13:0541 ~LogObserver() { rtc::LogMessage::RemoveLogToStream(&callback_); }
andresp@webrtc.orgb941fe82014-07-07 08:50:4842
43 void PushExpectedLogLine(const std::string& expected_log_line) {
44 callback_.PushExpectedLogLine(expected_log_line);
45 }
46
Peter Boström5811a392015-12-10 12:02:5047 bool Wait() { return callback_.Wait(); }
andresp@webrtc.orgb941fe82014-07-07 08:50:4848
49 private:
Peter Boström7c704b82015-12-04 15:13:0550 class Callback : public rtc::LogSink {
andresp@webrtc.orgb941fe82014-07-07 08:50:4851 public:
Peter Boström5811a392015-12-10 12:02:5052 Callback() : done_(false, false) {}
andresp@webrtc.orgb941fe82014-07-07 08:50:4853
Peter Boström7c704b82015-12-04 15:13:0554 void OnLogMessage(const std::string& message) override {
Peter Boströmf2f82832015-05-01 11:00:4155 rtc::CritScope lock(&crit_sect_);
Peter Boström7c704b82015-12-04 15:13:0556 // Ignore log lines that are due to missing AST extensions, these are
57 // logged when we switch back from AST to TOF until the wrapping bitrate
58 // estimator gives up on using AST.
59 if (message.find("BitrateEstimator") != std::string::npos &&
60 message.find("packet is missing") == std::string::npos) {
61 received_log_lines_.push_back(message);
andresp@webrtc.orgb941fe82014-07-07 08:50:4862 }
Peter Boström7c704b82015-12-04 15:13:0563
andresp@webrtc.orgb941fe82014-07-07 08:50:4864 int num_popped = 0;
65 while (!received_log_lines_.empty() && !expected_log_lines_.empty()) {
66 std::string a = received_log_lines_.front();
67 std::string b = expected_log_lines_.front();
68 received_log_lines_.pop_front();
69 expected_log_lines_.pop_front();
70 num_popped++;
Peter Boström7c704b82015-12-04 15:13:0571 EXPECT_TRUE(a.find(b) != std::string::npos) << a << " != " << b;
andresp@webrtc.orgb941fe82014-07-07 08:50:4872 }
73 if (expected_log_lines_.size() <= 0) {
74 if (num_popped > 0) {
Peter Boström5811a392015-12-10 12:02:5075 done_.Set();
andresp@webrtc.orgb941fe82014-07-07 08:50:4876 }
77 return;
78 }
79 }
80
Peter Boström5811a392015-12-10 12:02:5081 bool Wait() { return done_.Wait(test::CallTest::kDefaultTimeoutMs); }
andresp@webrtc.orgb941fe82014-07-07 08:50:4882
83 void PushExpectedLogLine(const std::string& expected_log_line) {
Peter Boströmf2f82832015-05-01 11:00:4184 rtc::CritScope lock(&crit_sect_);
andresp@webrtc.orgb941fe82014-07-07 08:50:4885 expected_log_lines_.push_back(expected_log_line);
86 }
87
88 private:
89 typedef std::list<std::string> Strings;
Peter Boströmf2f82832015-05-01 11:00:4190 rtc::CriticalSection crit_sect_;
andresp@webrtc.orgb941fe82014-07-07 08:50:4891 Strings received_log_lines_ GUARDED_BY(crit_sect_);
92 Strings expected_log_lines_ GUARDED_BY(crit_sect_);
Peter Boström5811a392015-12-10 12:02:5093 rtc::Event done_;
andresp@webrtc.orgb941fe82014-07-07 08:50:4894 };
95
96 Callback callback_;
97};
98} // namespace
pbos@webrtc.org5ab75672013-12-16 12:24:4499
100static const int kTOFExtensionId = 4;
101static const int kASTExtensionId = 5;
102
pbos@webrtc.org994d0b72014-06-27 08:47:52103class BitrateEstimatorTest : public test::CallTest {
pbos@webrtc.org5ab75672013-12-16 12:24:44104 public:
stefanf116bd02015-10-27 15:29:42105 BitrateEstimatorTest() : receive_config_(nullptr) {}
pbos@webrtc.org5ab75672013-12-16 12:24:44106
Fredrik Solenberg0ccae132015-11-03 09:15:49107 virtual ~BitrateEstimatorTest() { EXPECT_TRUE(streams_.empty()); }
pbos@webrtc.org5ab75672013-12-16 12:24:44108
109 virtual void SetUp() {
solenberg566ef242015-11-06 23:34:49110 AudioState::Config audio_state_config;
111 audio_state_config.voice_engine = &mock_voice_engine_;
Fredrik Solenberg4f4ec0a2015-10-22 08:49:27112 Call::Config config;
solenberg566ef242015-11-06 23:34:49113 config.audio_state = AudioState::Create(audio_state_config);
Fredrik Solenberg4f4ec0a2015-10-22 08:49:27114 receiver_call_.reset(Call::Create(config));
115 sender_call_.reset(Call::Create(config));
pbos@webrtc.org5ab75672013-12-16 12:24:44116
stefanf116bd02015-10-27 15:29:42117 send_transport_.reset(new test::DirectTransport(sender_call_.get()));
118 send_transport_->SetReceiver(receiver_call_->Receiver());
119 receive_transport_.reset(new test::DirectTransport(receiver_call_.get()));
120 receive_transport_->SetReceiver(sender_call_->Receiver());
pbos@webrtc.org5ab75672013-12-16 12:24:44121
stefanf116bd02015-10-27 15:29:42122 send_config_ = VideoSendStream::Config(send_transport_.get());
pbos@webrtc.org994d0b72014-06-27 08:47:52123 send_config_.rtp.ssrcs.push_back(kSendSsrcs[0]);
pbos@webrtc.orgf577ae92014-03-19 08:43:57124 // Encoders will be set separately per stream.
pbos@webrtc.org2b4ce3a2015-03-23 13:12:24125 send_config_.encoder_settings.encoder = nullptr;
pbos@webrtc.org6ae48c62014-06-06 10:49:19126 send_config_.encoder_settings.payload_name = "FAKE";
pbos@webrtc.org994d0b72014-06-27 08:47:52127 send_config_.encoder_settings.payload_type = kFakeSendPayloadType;
pbos@webrtc.orgbbe0a852014-09-19 12:30:25128 encoder_config_.streams = test::CreateVideoStreams(1);
pbos@webrtc.org5ab75672013-12-16 12:24:44129
stefanf116bd02015-10-27 15:29:42130 receive_config_ = VideoReceiveStream::Config(receive_transport_.get());
pbos@webrtc.org776e6f22014-10-29 15:28:39131 // receive_config_.decoders will be set by every stream separately.
pbos@webrtc.org5ab75672013-12-16 12:24:44132 receive_config_.rtp.remote_ssrc = send_config_.rtp.ssrcs[0];
133 receive_config_.rtp.local_ssrc = kReceiverLocalSsrc;
Peter Boströmd7da1202015-06-05 12:09:38134 receive_config_.rtp.remb = true;
pbos@webrtc.org5ab75672013-12-16 12:24:44135 receive_config_.rtp.extensions.push_back(
136 RtpExtension(RtpExtension::kTOffset, kTOFExtensionId));
137 receive_config_.rtp.extensions.push_back(
138 RtpExtension(RtpExtension::kAbsSendTime, kASTExtensionId));
139 }
140
141 virtual void TearDown() {
142 std::for_each(streams_.begin(), streams_.end(),
Fredrik Solenberg0ccae132015-11-03 09:15:49143 std::mem_fun(&Stream::StopSending));
pbos@webrtc.org5ab75672013-12-16 12:24:44144
stefanf116bd02015-10-27 15:29:42145 send_transport_->StopSending();
146 receive_transport_->StopSending();
pbos@webrtc.org5ab75672013-12-16 12:24:44147
148 while (!streams_.empty()) {
149 delete streams_.back();
150 streams_.pop_back();
151 }
152
pbos@webrtc.org5ab75672013-12-16 12:24:44153 receiver_call_.reset();
solenberg566ef242015-11-06 23:34:49154 sender_call_.reset();
pbos@webrtc.org5ab75672013-12-16 12:24:44155 }
156
157 protected:
158 friend class Stream;
159
pbos@webrtc.org5ab75672013-12-16 12:24:44160 class Stream {
161 public:
Fredrik Solenberg23fba1f2015-04-29 13:24:01162 Stream(BitrateEstimatorTest* test, bool receive_audio)
pbos@webrtc.org5ab75672013-12-16 12:24:44163 : test_(test),
164 is_sending_receiving_(false),
pbos@webrtc.org2b4ce3a2015-03-23 13:12:24165 send_stream_(nullptr),
Fredrik Solenberg23fba1f2015-04-29 13:24:01166 audio_receive_stream_(nullptr),
167 video_receive_stream_(nullptr),
pbos@webrtc.org5ab75672013-12-16 12:24:44168 frame_generator_capturer_(),
169 fake_encoder_(Clock::GetRealTimeClock()),
170 fake_decoder_() {
171 test_->send_config_.rtp.ssrcs[0]++;
pbos@webrtc.orgf577ae92014-03-19 08:43:57172 test_->send_config_.encoder_settings.encoder = &fake_encoder_;
pbos@webrtc.org6ae48c62014-06-06 10:49:19173 send_stream_ = test_->sender_call_->CreateVideoSendStream(
pbos@webrtc.orgbbe0a852014-09-19 12:30:25174 test_->send_config_, test_->encoder_config_);
henrikg91d6ede2015-09-17 07:24:34175 RTC_DCHECK_EQ(1u, test_->encoder_config_.streams.size());
pbos@webrtc.orgbbe0a852014-09-19 12:30:25176 frame_generator_capturer_.reset(test::FrameGeneratorCapturer::Create(
Fredrik Solenberg0ccae132015-11-03 09:15:49177 send_stream_->Input(), test_->encoder_config_.streams[0].width,
178 test_->encoder_config_.streams[0].height, 30,
pbos@webrtc.orgbbe0a852014-09-19 12:30:25179 Clock::GetRealTimeClock()));
pbos@webrtc.orga5c8d2c2014-04-24 11:13:21180 send_stream_->Start();
pbos@webrtc.org5ab75672013-12-16 12:24:44181 frame_generator_capturer_->Start();
182
Fredrik Solenberg23fba1f2015-04-29 13:24:01183 if (receive_audio) {
184 AudioReceiveStream::Config receive_config;
185 receive_config.rtp.remote_ssrc = test_->send_config_.rtp.ssrcs[0];
henrikg91d6ede2015-09-17 07:24:34186 // Bogus non-default id to prevent hitting a RTC_DCHECK when creating
187 // the AudioReceiveStream. Every receive stream has to correspond to
188 // an underlying channel id.
pbos8fc7fa72015-07-15 15:02:58189 receive_config.voe_channel_id = 0;
Fredrik Solenberg23fba1f2015-04-29 13:24:01190 receive_config.rtp.extensions.push_back(
191 RtpExtension(RtpExtension::kAbsSendTime, kASTExtensionId));
pbos6bb1b6e2015-07-24 14:10:18192 receive_config.combined_audio_video_bwe = true;
stefanf116bd02015-10-27 15:29:42193 audio_receive_stream_ =
194 test_->receiver_call_->CreateAudioReceiveStream(receive_config);
Fredrik Solenberg23fba1f2015-04-29 13:24:01195 } else {
196 VideoReceiveStream::Decoder decoder;
197 decoder.decoder = &fake_decoder_;
198 decoder.payload_type =
199 test_->send_config_.encoder_settings.payload_type;
200 decoder.payload_name =
201 test_->send_config_.encoder_settings.payload_name;
Peter Boström521af4e2015-11-27 15:35:04202 test_->receive_config_.decoders.clear();
Fredrik Solenberg23fba1f2015-04-29 13:24:01203 test_->receive_config_.decoders.push_back(decoder);
204 test_->receive_config_.rtp.remote_ssrc =
205 test_->send_config_.rtp.ssrcs[0];
206 test_->receive_config_.rtp.local_ssrc++;
207 video_receive_stream_ = test_->receiver_call_->CreateVideoReceiveStream(
208 test_->receive_config_);
209 video_receive_stream_->Start();
210 }
pbos@webrtc.org5ab75672013-12-16 12:24:44211 is_sending_receiving_ = true;
212 }
213
214 ~Stream() {
Fredrik Solenberg23fba1f2015-04-29 13:24:01215 EXPECT_FALSE(is_sending_receiving_);
pbos@webrtc.org2b4ce3a2015-03-23 13:12:24216 frame_generator_capturer_.reset(nullptr);
pbos@webrtc.org5ab75672013-12-16 12:24:44217 test_->sender_call_->DestroyVideoSendStream(send_stream_);
pbos@webrtc.org2b4ce3a2015-03-23 13:12:24218 send_stream_ = nullptr;
Fredrik Solenberg23fba1f2015-04-29 13:24:01219 if (audio_receive_stream_) {
220 test_->receiver_call_->DestroyAudioReceiveStream(audio_receive_stream_);
221 audio_receive_stream_ = nullptr;
222 }
223 if (video_receive_stream_) {
224 test_->receiver_call_->DestroyVideoReceiveStream(video_receive_stream_);
225 video_receive_stream_ = nullptr;
226 }
pbos@webrtc.org5ab75672013-12-16 12:24:44227 }
228
229 void StopSending() {
230 if (is_sending_receiving_) {
231 frame_generator_capturer_->Stop();
pbos@webrtc.orga5c8d2c2014-04-24 11:13:21232 send_stream_->Stop();
Fredrik Solenberg23fba1f2015-04-29 13:24:01233 if (video_receive_stream_) {
234 video_receive_stream_->Stop();
235 }
pbos@webrtc.org5ab75672013-12-16 12:24:44236 is_sending_receiving_ = false;
237 }
238 }
239
240 private:
241 BitrateEstimatorTest* test_;
242 bool is_sending_receiving_;
243 VideoSendStream* send_stream_;
Fredrik Solenberg23fba1f2015-04-29 13:24:01244 AudioReceiveStream* audio_receive_stream_;
245 VideoReceiveStream* video_receive_stream_;
kwiberg@webrtc.org00b8f6b2015-02-26 14:34:55246 rtc::scoped_ptr<test::FrameGeneratorCapturer> frame_generator_capturer_;
pbos@webrtc.org5ab75672013-12-16 12:24:44247 test::FakeEncoder fake_encoder_;
248 test::FakeDecoder fake_decoder_;
249 };
250
solenberg3a941542015-11-16 15:34:50251 testing::NiceMock<test::MockVoiceEngine> mock_voice_engine_;
Peter Boström7c704b82015-12-04 15:13:05252 LogObserver receiver_log_;
stefanf116bd02015-10-27 15:29:42253 rtc::scoped_ptr<test::DirectTransport> send_transport_;
254 rtc::scoped_ptr<test::DirectTransport> receive_transport_;
kwiberg@webrtc.org00b8f6b2015-02-26 14:34:55255 rtc::scoped_ptr<Call> sender_call_;
256 rtc::scoped_ptr<Call> receiver_call_;
pbos@webrtc.org5ab75672013-12-16 12:24:44257 VideoReceiveStream::Config receive_config_;
258 std::vector<Stream*> streams_;
259};
260
Erik Språng468e62a2015-07-06 08:50:47261static const char* kAbsSendTimeLog =
262 "RemoteBitrateEstimatorAbsSendTime: Instantiating.";
263static const char* kSingleStreamLog =
264 "RemoteBitrateEstimatorSingleStream: Instantiating.";
265
Fredrik Solenberg23fba1f2015-04-29 13:24:01266TEST_F(BitrateEstimatorTest, InstantiatesTOFPerDefaultForVideo) {
pbos@webrtc.org5ab75672013-12-16 12:24:44267 send_config_.rtp.extensions.push_back(
268 RtpExtension(RtpExtension::kTOffset, kTOFExtensionId));
Peter Boström7c704b82015-12-04 15:13:05269 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
270 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
Fredrik Solenberg23fba1f2015-04-29 13:24:01271 streams_.push_back(new Stream(this, false));
Peter Boström5811a392015-12-10 12:02:50272 EXPECT_TRUE(receiver_log_.Wait());
pbos@webrtc.org5ab75672013-12-16 12:24:44273}
274
Fredrik Solenberg23fba1f2015-04-29 13:24:01275TEST_F(BitrateEstimatorTest, ImmediatelySwitchToASTForAudio) {
solenberg@webrtc.orgab240512014-01-08 08:59:44276 send_config_.rtp.extensions.push_back(
277 RtpExtension(RtpExtension::kAbsSendTime, kASTExtensionId));
Peter Boström7c704b82015-12-04 15:13:05278 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
279 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
280 receiver_log_.PushExpectedLogLine("Switching to absolute send time RBE.");
281 receiver_log_.PushExpectedLogLine(kAbsSendTimeLog);
Fredrik Solenberg23fba1f2015-04-29 13:24:01282 streams_.push_back(new Stream(this, true));
Peter Boström5811a392015-12-10 12:02:50283 EXPECT_TRUE(receiver_log_.Wait());
solenberg@webrtc.orgab240512014-01-08 08:59:44284}
285
Fredrik Solenberg23fba1f2015-04-29 13:24:01286TEST_F(BitrateEstimatorTest, ImmediatelySwitchToASTForVideo) {
287 send_config_.rtp.extensions.push_back(
288 RtpExtension(RtpExtension::kAbsSendTime, kASTExtensionId));
Peter Boström7c704b82015-12-04 15:13:05289 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
290 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
291 receiver_log_.PushExpectedLogLine("Switching to absolute send time RBE.");
292 receiver_log_.PushExpectedLogLine(kAbsSendTimeLog);
Fredrik Solenberg23fba1f2015-04-29 13:24:01293 streams_.push_back(new Stream(this, false));
Peter Boström5811a392015-12-10 12:02:50294 EXPECT_TRUE(receiver_log_.Wait());
Fredrik Solenberg23fba1f2015-04-29 13:24:01295}
296
297TEST_F(BitrateEstimatorTest, SwitchesToASTForAudio) {
Peter Boström7c704b82015-12-04 15:13:05298 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
299 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
Fredrik Solenberg23fba1f2015-04-29 13:24:01300 streams_.push_back(new Stream(this, true));
Peter Boström5811a392015-12-10 12:02:50301 EXPECT_TRUE(receiver_log_.Wait());
Fredrik Solenberg23fba1f2015-04-29 13:24:01302
303 send_config_.rtp.extensions.push_back(
304 RtpExtension(RtpExtension::kAbsSendTime, kASTExtensionId));
Peter Boström7c704b82015-12-04 15:13:05305 receiver_log_.PushExpectedLogLine("Switching to absolute send time RBE.");
306 receiver_log_.PushExpectedLogLine(kAbsSendTimeLog);
Fredrik Solenberg23fba1f2015-04-29 13:24:01307 streams_.push_back(new Stream(this, true));
Peter Boström5811a392015-12-10 12:02:50308 EXPECT_TRUE(receiver_log_.Wait());
Fredrik Solenberg23fba1f2015-04-29 13:24:01309}
310
311TEST_F(BitrateEstimatorTest, SwitchesToASTForVideo) {
pbos@webrtc.org5ab75672013-12-16 12:24:44312 send_config_.rtp.extensions.push_back(
313 RtpExtension(RtpExtension::kTOffset, kTOFExtensionId));
Peter Boström7c704b82015-12-04 15:13:05314 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
315 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
Fredrik Solenberg23fba1f2015-04-29 13:24:01316 streams_.push_back(new Stream(this, false));
Peter Boström5811a392015-12-10 12:02:50317 EXPECT_TRUE(receiver_log_.Wait());
pbos@webrtc.org5ab75672013-12-16 12:24:44318
319 send_config_.rtp.extensions[0] =
320 RtpExtension(RtpExtension::kAbsSendTime, kASTExtensionId);
Peter Boström7c704b82015-12-04 15:13:05321 receiver_log_.PushExpectedLogLine("Switching to absolute send time RBE.");
322 receiver_log_.PushExpectedLogLine(kAbsSendTimeLog);
Fredrik Solenberg23fba1f2015-04-29 13:24:01323 streams_.push_back(new Stream(this, false));
Peter Boström5811a392015-12-10 12:02:50324 EXPECT_TRUE(receiver_log_.Wait());
pbos@webrtc.org5ab75672013-12-16 12:24:44325}
326
Fredrik Solenberg23fba1f2015-04-29 13:24:01327TEST_F(BitrateEstimatorTest, SwitchesToASTThenBackToTOFForVideo) {
pbos@webrtc.org5ab75672013-12-16 12:24:44328 send_config_.rtp.extensions.push_back(
329 RtpExtension(RtpExtension::kTOffset, kTOFExtensionId));
Peter Boström7c704b82015-12-04 15:13:05330 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
331 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
Fredrik Solenberg23fba1f2015-04-29 13:24:01332 streams_.push_back(new Stream(this, false));
Peter Boström5811a392015-12-10 12:02:50333 EXPECT_TRUE(receiver_log_.Wait());
pbos@webrtc.org5ab75672013-12-16 12:24:44334
335 send_config_.rtp.extensions[0] =
336 RtpExtension(RtpExtension::kAbsSendTime, kASTExtensionId);
Peter Boström7c704b82015-12-04 15:13:05337 receiver_log_.PushExpectedLogLine("Switching to absolute send time RBE.");
338 receiver_log_.PushExpectedLogLine(kAbsSendTimeLog);
Fredrik Solenberg23fba1f2015-04-29 13:24:01339 streams_.push_back(new Stream(this, false));
Peter Boström5811a392015-12-10 12:02:50340 EXPECT_TRUE(receiver_log_.Wait());
pbos@webrtc.org5ab75672013-12-16 12:24:44341
342 send_config_.rtp.extensions[0] =
343 RtpExtension(RtpExtension::kTOffset, kTOFExtensionId);
Peter Boström7c704b82015-12-04 15:13:05344 receiver_log_.PushExpectedLogLine(
pbos@webrtc.org5ab75672013-12-16 12:24:44345 "WrappingBitrateEstimator: Switching to transmission time offset RBE.");
Peter Boström7c704b82015-12-04 15:13:05346 receiver_log_.PushExpectedLogLine(kSingleStreamLog);
Fredrik Solenberg23fba1f2015-04-29 13:24:01347 streams_.push_back(new Stream(this, false));
pbos@webrtc.org5ab75672013-12-16 12:24:44348 streams_[0]->StopSending();
349 streams_[1]->StopSending();
Peter Boström5811a392015-12-10 12:02:50350 EXPECT_TRUE(receiver_log_.Wait());
pbos@webrtc.org5ab75672013-12-16 12:24:44351}
352} // namespace webrtc