| /* | 
 |  *  Copyright (c) 2008 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 <memory> | 
 |  | 
 | #include "webrtc/api/audio_codecs/builtin_audio_decoder_factory.h" | 
 | #include "webrtc/base/arraysize.h" | 
 | #include "webrtc/base/byteorder.h" | 
 | #include "webrtc/base/safe_conversions.h" | 
 | #include "webrtc/call/call.h" | 
 | #include "webrtc/logging/rtc_event_log/rtc_event_log.h" | 
 | #include "webrtc/media/base/fakemediaengine.h" | 
 | #include "webrtc/media/base/fakenetworkinterface.h" | 
 | #include "webrtc/media/base/fakertp.h" | 
 | #include "webrtc/media/base/mediaconstants.h" | 
 | #include "webrtc/media/engine/fakewebrtccall.h" | 
 | #include "webrtc/media/engine/fakewebrtcvoiceengine.h" | 
 | #include "webrtc/media/engine/webrtcvoiceengine.h" | 
 | #include "webrtc/modules/audio_coding/codecs/mock/mock_audio_decoder_factory.h" | 
 | #include "webrtc/modules/audio_device/include/mock_audio_device.h" | 
 | #include "webrtc/modules/audio_processing/include/mock_audio_processing.h" | 
 | #include "webrtc/pc/channel.h" | 
 | #include "webrtc/test/field_trial.h" | 
 | #include "webrtc/test/gtest.h" | 
 | #include "webrtc/voice_engine/transmit_mixer.h" | 
 |  | 
 | using testing::ContainerEq; | 
 | using testing::Return; | 
 | using testing::StrictMock; | 
 |  | 
 | namespace { | 
 |  | 
 | constexpr uint32_t kMaxUnsignaledRecvStreams = 1; | 
 |  | 
 | const cricket::AudioCodec kPcmuCodec(0, "PCMU", 8000, 64000, 1); | 
 | const cricket::AudioCodec kIsacCodec(103, "ISAC", 16000, 32000, 1); | 
 | const cricket::AudioCodec kOpusCodec(111, "opus", 48000, 64000, 2); | 
 | const cricket::AudioCodec kG722CodecVoE(9, "G722", 16000, 64000, 1); | 
 | const cricket::AudioCodec kG722CodecSdp(9, "G722", 8000, 64000, 1); | 
 | const cricket::AudioCodec kCn8000Codec(13, "CN", 8000, 0, 1); | 
 | const cricket::AudioCodec kCn16000Codec(105, "CN", 16000, 0, 1); | 
 | const cricket::AudioCodec | 
 |     kTelephoneEventCodec1(106, "telephone-event", 8000, 0, 1); | 
 | const cricket::AudioCodec | 
 |     kTelephoneEventCodec2(107, "telephone-event", 32000, 0, 1); | 
 |  | 
 | const uint32_t kSsrc0 = 0; | 
 | const uint32_t kSsrc1 = 1; | 
 | const uint32_t kSsrcX = 0x99; | 
 | const uint32_t kSsrcY = 0x17; | 
 | const uint32_t kSsrcZ = 0x42; | 
 | const uint32_t kSsrcW = 0x02; | 
 | const uint32_t kSsrcs4[] = { 11, 200, 30, 44 }; | 
 |  | 
 | constexpr int kRtpHistoryMs = 5000; | 
 |  | 
 | class FakeVoEWrapper : public cricket::VoEWrapper { | 
 |  public: | 
 |   explicit FakeVoEWrapper(cricket::FakeWebRtcVoiceEngine* engine) | 
 |       : cricket::VoEWrapper(engine,  // base | 
 |                             engine) {  // codec | 
 |   } | 
 | }; | 
 |  | 
 | class MockTransmitMixer : public webrtc::voe::TransmitMixer { | 
 |  public: | 
 |   MockTransmitMixer() = default; | 
 |   virtual ~MockTransmitMixer() = default; | 
 |  | 
 |   MOCK_METHOD1(EnableStereoChannelSwapping, void(bool enable)); | 
 | }; | 
 |  | 
 | void AdmSetupExpectations(webrtc::test::MockAudioDeviceModule* adm) { | 
 |   RTC_DCHECK(adm); | 
 |   EXPECT_CALL(*adm, AddRef()).WillOnce(Return(0)); | 
 |   EXPECT_CALL(*adm, Release()).WillOnce(Return(0)); | 
 | #if !defined(WEBRTC_IOS) | 
 |   EXPECT_CALL(*adm, Recording()).WillOnce(Return(false)); | 
 |   EXPECT_CALL(*adm, SetRecordingChannel(webrtc::AudioDeviceModule:: | 
 |       ChannelType::kChannelBoth)).WillOnce(Return(0)); | 
 | #if defined(WEBRTC_WIN) | 
 |   EXPECT_CALL(*adm, SetRecordingDevice( | 
 |       testing::Matcher<webrtc::AudioDeviceModule::WindowsDeviceType>( | 
 |           webrtc::AudioDeviceModule::kDefaultCommunicationDevice))) | 
 |               .WillOnce(Return(0)); | 
 | #else | 
 |   EXPECT_CALL(*adm, SetRecordingDevice(0)).WillOnce(Return(0)); | 
 | #endif  // #if defined(WEBRTC_WIN) | 
 |   EXPECT_CALL(*adm, InitMicrophone()).WillOnce(Return(0)); | 
 |   EXPECT_CALL(*adm, StereoRecordingIsAvailable(testing::_)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(*adm, SetStereoRecording(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(*adm, Playing()).WillOnce(Return(false)); | 
 | #if defined(WEBRTC_WIN) | 
 |   EXPECT_CALL(*adm, SetPlayoutDevice( | 
 |       testing::Matcher<webrtc::AudioDeviceModule::WindowsDeviceType>( | 
 |           webrtc::AudioDeviceModule::kDefaultCommunicationDevice))) | 
 |               .WillOnce(Return(0)); | 
 | #else | 
 |   EXPECT_CALL(*adm, SetPlayoutDevice(0)).WillOnce(Return(0)); | 
 | #endif  // #if defined(WEBRTC_WIN) | 
 |   EXPECT_CALL(*adm, InitSpeaker()).WillOnce(Return(0)); | 
 |   EXPECT_CALL(*adm, StereoPlayoutIsAvailable(testing::_)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(*adm, SetStereoPlayout(false)).WillOnce(Return(0)); | 
 | #endif  // #if !defined(WEBRTC_IOS) | 
 |   EXPECT_CALL(*adm, BuiltInAECIsAvailable()).WillOnce(Return(false)); | 
 |   EXPECT_CALL(*adm, BuiltInAGCIsAvailable()).WillOnce(Return(false)); | 
 |   EXPECT_CALL(*adm, BuiltInNSIsAvailable()).WillOnce(Return(false)); | 
 |   EXPECT_CALL(*adm, SetAGC(true)).WillOnce(Return(0)); | 
 | } | 
 | }  // namespace | 
 |  | 
 | // Tests that our stub library "works". | 
 | TEST(WebRtcVoiceEngineTestStubLibrary, StartupShutdown) { | 
 |   StrictMock<webrtc::test::MockAudioDeviceModule> adm; | 
 |   AdmSetupExpectations(&adm); | 
 |   StrictMock<webrtc::test::MockAudioProcessing> apm; | 
 |   EXPECT_CALL(apm, ApplyConfig(testing::_)); | 
 |   EXPECT_CALL(apm, SetExtraOptions(testing::_)); | 
 |   EXPECT_CALL(apm, Initialize()).WillOnce(Return(0)); | 
 |   StrictMock<MockTransmitMixer> transmit_mixer; | 
 |   EXPECT_CALL(transmit_mixer, EnableStereoChannelSwapping(false)); | 
 |   cricket::FakeWebRtcVoiceEngine voe(&apm, &transmit_mixer); | 
 |   EXPECT_FALSE(voe.IsInited()); | 
 |   { | 
 |     cricket::WebRtcVoiceEngine engine( | 
 |         &adm, webrtc::MockAudioDecoderFactory::CreateUnusedFactory(), nullptr, | 
 |         new FakeVoEWrapper(&voe)); | 
 |     EXPECT_TRUE(voe.IsInited()); | 
 |   } | 
 |   EXPECT_FALSE(voe.IsInited()); | 
 | } | 
 |  | 
 | class FakeAudioSink : public webrtc::AudioSinkInterface { | 
 |  public: | 
 |   void OnData(const Data& audio) override {} | 
 | }; | 
 |  | 
 | class FakeAudioSource : public cricket::AudioSource { | 
 |   void SetSink(Sink* sink) override {} | 
 | }; | 
 |  | 
 | class WebRtcVoiceEngineTestFake : public testing::Test { | 
 |  public: | 
 |   WebRtcVoiceEngineTestFake() : WebRtcVoiceEngineTestFake("") {} | 
 |  | 
 |   explicit WebRtcVoiceEngineTestFake(const char* field_trials) | 
 |       : apm_gc_(*apm_.gain_control()), apm_ec_(*apm_.echo_cancellation()), | 
 |         apm_ns_(*apm_.noise_suppression()), apm_vd_(*apm_.voice_detection()), | 
 |         call_(webrtc::Call::Config(&event_log_)), voe_(&apm_, &transmit_mixer_), | 
 |         override_field_trials_(field_trials) { | 
 |     // AudioDeviceModule. | 
 |     AdmSetupExpectations(&adm_); | 
 |     // AudioProcessing. | 
 |     EXPECT_CALL(apm_, ApplyConfig(testing::_)); | 
 |     EXPECT_CALL(apm_, SetExtraOptions(testing::_)); | 
 |     EXPECT_CALL(apm_, Initialize()).WillOnce(Return(0)); | 
 |     // Default Options. | 
 |     EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |     EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |     EXPECT_CALL(apm_gc_, Enable(true)).WillOnce(Return(0)); | 
 |     EXPECT_CALL(apm_ns_, Enable(true)).WillOnce(Return(0)); | 
 |     EXPECT_CALL(apm_vd_, Enable(true)).WillOnce(Return(0)); | 
 |     EXPECT_CALL(transmit_mixer_, EnableStereoChannelSwapping(false)); | 
 |     // Init does not overwrite default AGC config. | 
 |     EXPECT_CALL(apm_gc_, target_level_dbfs()).WillOnce(Return(1)); | 
 |     EXPECT_CALL(apm_gc_, compression_gain_db()).WillRepeatedly(Return(5)); | 
 |     EXPECT_CALL(apm_gc_, is_limiter_enabled()).WillRepeatedly(Return(true)); | 
 |     EXPECT_CALL(apm_gc_, set_target_level_dbfs(1)).WillOnce(Return(0)); | 
 |     EXPECT_CALL(apm_gc_, set_compression_gain_db(5)).WillRepeatedly(Return(0)); | 
 |     EXPECT_CALL(apm_gc_, enable_limiter(true)).WillRepeatedly(Return(0)); | 
 |     // TODO(kwiberg): We should use a mock AudioDecoderFactory, but a bunch of | 
 |     // the tests here probe the specific set of codecs provided by the builtin | 
 |     // factory. Those tests should probably be moved elsewhere. | 
 |     engine_.reset(new cricket::WebRtcVoiceEngine( | 
 |         &adm_, webrtc::CreateBuiltinAudioDecoderFactory(), nullptr, | 
 |         new FakeVoEWrapper(&voe_))); | 
 |     send_parameters_.codecs.push_back(kPcmuCodec); | 
 |     recv_parameters_.codecs.push_back(kPcmuCodec); | 
 |     // Default Options. | 
 |     EXPECT_TRUE(IsHighPassFilterEnabled()); | 
 |   } | 
 |  | 
 |   bool SetupChannel() { | 
 |     EXPECT_CALL(apm_, ApplyConfig(testing::_)); | 
 |     EXPECT_CALL(apm_, SetExtraOptions(testing::_)); | 
 |     channel_ = engine_->CreateChannel(&call_, cricket::MediaConfig(), | 
 |                                       cricket::AudioOptions()); | 
 |     return (channel_ != nullptr); | 
 |   } | 
 |  | 
 |   bool SetupRecvStream() { | 
 |     if (!SetupChannel()) { | 
 |       return false; | 
 |     } | 
 |     return AddRecvStream(kSsrcX); | 
 |   } | 
 |  | 
 |   bool SetupSendStream() { | 
 |     if (!SetupChannel()) { | 
 |       return false; | 
 |     } | 
 |     if (!channel_->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrcX))) { | 
 |       return false; | 
 |     } | 
 |     EXPECT_CALL(apm_, set_output_will_be_muted(false)); | 
 |     return channel_->SetAudioSend(kSsrcX, true, nullptr, &fake_source_); | 
 |   } | 
 |  | 
 |   bool AddRecvStream(uint32_t ssrc) { | 
 |     EXPECT_TRUE(channel_); | 
 |     return channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(ssrc)); | 
 |   } | 
 |  | 
 |   void SetupForMultiSendStream() { | 
 |     EXPECT_TRUE(SetupSendStream()); | 
 |     // Remove stream added in Setup. | 
 |     EXPECT_TRUE(call_.GetAudioSendStream(kSsrcX)); | 
 |     EXPECT_TRUE(channel_->RemoveSendStream(kSsrcX)); | 
 |     // Verify the channel does not exist. | 
 |     EXPECT_FALSE(call_.GetAudioSendStream(kSsrcX)); | 
 |   } | 
 |  | 
 |   void DeliverPacket(const void* data, int len) { | 
 |     rtc::CopyOnWriteBuffer packet(reinterpret_cast<const uint8_t*>(data), len); | 
 |     channel_->OnPacketReceived(&packet, rtc::PacketTime()); | 
 |   } | 
 |  | 
 |   void TearDown() override { | 
 |     delete channel_; | 
 |   } | 
 |  | 
 |   const cricket::FakeAudioSendStream& GetSendStream(uint32_t ssrc) { | 
 |     const auto* send_stream = call_.GetAudioSendStream(ssrc); | 
 |     EXPECT_TRUE(send_stream); | 
 |     return *send_stream; | 
 |   } | 
 |  | 
 |   const cricket::FakeAudioReceiveStream& GetRecvStream(uint32_t ssrc) { | 
 |     const auto* recv_stream = call_.GetAudioReceiveStream(ssrc); | 
 |     EXPECT_TRUE(recv_stream); | 
 |     return *recv_stream; | 
 |   } | 
 |  | 
 |   const webrtc::AudioSendStream::Config& GetSendStreamConfig(uint32_t ssrc) { | 
 |     return GetSendStream(ssrc).GetConfig(); | 
 |   } | 
 |  | 
 |   const webrtc::AudioReceiveStream::Config& GetRecvStreamConfig(uint32_t ssrc) { | 
 |     return GetRecvStream(ssrc).GetConfig(); | 
 |   } | 
 |  | 
 |   void SetSend(bool enable) { | 
 |     ASSERT_TRUE(channel_); | 
 |     if (enable) { | 
 |       EXPECT_CALL(adm_, RecordingIsInitialized()).WillOnce(Return(false)); | 
 |       EXPECT_CALL(adm_, Recording()).WillOnce(Return(false)); | 
 |       EXPECT_CALL(adm_, InitRecording()).WillOnce(Return(0)); | 
 |       EXPECT_CALL(apm_, ApplyConfig(testing::_)); | 
 |       EXPECT_CALL(apm_, SetExtraOptions(testing::_)); | 
 |     } | 
 |     channel_->SetSend(enable); | 
 |   } | 
 |  | 
 |   void SetSendParameters(const cricket::AudioSendParameters& params) { | 
 |     EXPECT_CALL(apm_, ApplyConfig(testing::_)); | 
 |     EXPECT_CALL(apm_, SetExtraOptions(testing::_)); | 
 |     ASSERT_TRUE(channel_); | 
 |     EXPECT_TRUE(channel_->SetSendParameters(params)); | 
 |   } | 
 |  | 
 |   void SetAudioSend(uint32_t ssrc, bool enable, cricket::AudioSource* source, | 
 |                     const cricket::AudioOptions* options = nullptr) { | 
 |     EXPECT_CALL(apm_, set_output_will_be_muted(!enable)); | 
 |     ASSERT_TRUE(channel_); | 
 |     if (enable && options) { | 
 |       EXPECT_CALL(apm_, ApplyConfig(testing::_)); | 
 |       EXPECT_CALL(apm_, SetExtraOptions(testing::_)); | 
 |     } | 
 |     EXPECT_TRUE(channel_->SetAudioSend(ssrc, enable, options, source)); | 
 |   } | 
 |  | 
 |   void TestInsertDtmf(uint32_t ssrc, bool caller, | 
 |                       const cricket::AudioCodec& codec) { | 
 |     EXPECT_TRUE(SetupChannel()); | 
 |     if (caller) { | 
 |       // If this is a caller, local description will be applied and add the | 
 |       // send stream. | 
 |       EXPECT_TRUE(channel_->AddSendStream( | 
 |           cricket::StreamParams::CreateLegacy(kSsrcX))); | 
 |     } | 
 |  | 
 |     // Test we can only InsertDtmf when the other side supports telephone-event. | 
 |     SetSendParameters(send_parameters_); | 
 |     SetSend(true); | 
 |     EXPECT_FALSE(channel_->CanInsertDtmf()); | 
 |     EXPECT_FALSE(channel_->InsertDtmf(ssrc, 1, 111)); | 
 |     send_parameters_.codecs.push_back(codec); | 
 |     SetSendParameters(send_parameters_); | 
 |     EXPECT_TRUE(channel_->CanInsertDtmf()); | 
 |  | 
 |     if (!caller) { | 
 |       // If this is callee, there's no active send channel yet. | 
 |       EXPECT_FALSE(channel_->InsertDtmf(ssrc, 2, 123)); | 
 |       EXPECT_TRUE(channel_->AddSendStream( | 
 |           cricket::StreamParams::CreateLegacy(kSsrcX))); | 
 |     } | 
 |  | 
 |     // Check we fail if the ssrc is invalid. | 
 |     EXPECT_FALSE(channel_->InsertDtmf(-1, 1, 111)); | 
 |  | 
 |     // Test send. | 
 |     cricket::FakeAudioSendStream::TelephoneEvent telephone_event = | 
 |         GetSendStream(kSsrcX).GetLatestTelephoneEvent(); | 
 |     EXPECT_EQ(-1, telephone_event.payload_type); | 
 |     EXPECT_TRUE(channel_->InsertDtmf(ssrc, 2, 123)); | 
 |     telephone_event = GetSendStream(kSsrcX).GetLatestTelephoneEvent(); | 
 |     EXPECT_EQ(codec.id, telephone_event.payload_type); | 
 |     EXPECT_EQ(codec.clockrate, telephone_event.payload_frequency); | 
 |     EXPECT_EQ(2, telephone_event.event_code); | 
 |     EXPECT_EQ(123, telephone_event.duration_ms); | 
 |   } | 
 |  | 
 |   // Test that send bandwidth is set correctly. | 
 |   // |codec| is the codec under test. | 
 |   // |max_bitrate| is a parameter to set to SetMaxSendBandwidth(). | 
 |   // |expected_result| is the expected result from SetMaxSendBandwidth(). | 
 |   // |expected_bitrate| is the expected audio bitrate afterward. | 
 |   void TestMaxSendBandwidth(const cricket::AudioCodec& codec, | 
 |                             int max_bitrate, | 
 |                             bool expected_result, | 
 |                             int expected_bitrate) { | 
 |     cricket::AudioSendParameters parameters; | 
 |     parameters.codecs.push_back(codec); | 
 |     parameters.max_bandwidth_bps = max_bitrate; | 
 |     if (expected_result) { | 
 |       SetSendParameters(parameters); | 
 |     } else { | 
 |       EXPECT_FALSE(channel_->SetSendParameters(parameters)); | 
 |     } | 
 |     EXPECT_EQ(expected_bitrate, GetCodecBitrate(kSsrcX)); | 
 |   } | 
 |  | 
 |   // Sets the per-stream maximum bitrate limit for the specified SSRC. | 
 |   bool SetMaxBitrateForStream(int32_t ssrc, int bitrate) { | 
 |     webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(ssrc); | 
 |     EXPECT_EQ(1UL, parameters.encodings.size()); | 
 |  | 
 |     parameters.encodings[0].max_bitrate_bps = rtc::Optional<int>(bitrate); | 
 |     return channel_->SetRtpSendParameters(ssrc, parameters); | 
 |   } | 
 |  | 
 |   void SetGlobalMaxBitrate(const cricket::AudioCodec& codec, int bitrate) { | 
 |     cricket::AudioSendParameters send_parameters; | 
 |     send_parameters.codecs.push_back(codec); | 
 |     send_parameters.max_bandwidth_bps = bitrate; | 
 |     SetSendParameters(send_parameters); | 
 |   } | 
 |  | 
 |   void CheckSendCodec(int32_t ssrc, | 
 |                       const char expected_name[], | 
 |                       int expected_channels, | 
 |                       int expected_bitrate) { | 
 |     const auto& codec = GetSendStreamConfig(ssrc).send_codec_spec.codec_inst; | 
 |     EXPECT_STREQ(expected_name, codec.plname); | 
 |     EXPECT_EQ(expected_channels, codec.channels); | 
 |     EXPECT_EQ(expected_bitrate, codec.rate); | 
 |   } | 
 |  | 
 |   int GetOpusMaxPlaybackRate(int32_t ssrc) { | 
 |     return GetSendStreamConfig(ssrc).send_codec_spec.opus_max_playback_rate; | 
 |   } | 
 |  | 
 |   bool GetOpusDtx(int32_t ssrc) { | 
 |     return GetSendStreamConfig(ssrc).send_codec_spec.enable_opus_dtx; | 
 |   } | 
 |  | 
 |   bool GetCodecFec(int32_t ssrc) { | 
 |     return GetSendStreamConfig(ssrc).send_codec_spec.enable_codec_fec; | 
 |   } | 
 |  | 
 |   int GetCodecBitrate(int32_t ssrc) { | 
 |     return GetSendStreamConfig(ssrc).send_codec_spec.codec_inst.rate; | 
 |   } | 
 |  | 
 |   int GetCodecPacSize(int32_t ssrc) { | 
 |     return GetSendStreamConfig(ssrc).send_codec_spec.codec_inst.pacsize; | 
 |   } | 
 |  | 
 |   const rtc::Optional<std::string>& GetAudioNetworkAdaptorConfig(int32_t ssrc) { | 
 |     return GetSendStreamConfig(ssrc).audio_network_adaptor_config; | 
 |   } | 
 |  | 
 |   void SetAndExpectMaxBitrate(const cricket::AudioCodec& codec, | 
 |                               int global_max, | 
 |                               int stream_max, | 
 |                               bool expected_result, | 
 |                               int expected_codec_bitrate) { | 
 |     // Clear the bitrate limit from the previous test case. | 
 |     EXPECT_TRUE(SetMaxBitrateForStream(kSsrcX, -1)); | 
 |  | 
 |     // Attempt to set the requested bitrate limits. | 
 |     SetGlobalMaxBitrate(codec, global_max); | 
 |     EXPECT_EQ(expected_result, SetMaxBitrateForStream(kSsrcX, stream_max)); | 
 |  | 
 |     // Verify that reading back the parameters gives results | 
 |     // consistent with the Set() result. | 
 |     webrtc::RtpParameters resulting_parameters = | 
 |         channel_->GetRtpSendParameters(kSsrcX); | 
 |     EXPECT_EQ(1UL, resulting_parameters.encodings.size()); | 
 |     EXPECT_EQ(expected_result ? stream_max : -1, | 
 |               resulting_parameters.encodings[0].max_bitrate_bps); | 
 |  | 
 |     // Verify that the codec settings have the expected bitrate. | 
 |     EXPECT_EQ(expected_codec_bitrate, GetCodecBitrate(kSsrcX)); | 
 |   } | 
 |  | 
 |   void SetSendCodecsShouldWorkForBitrates(const char* min_bitrate_kbps, | 
 |                                           int expected_min_bitrate_bps, | 
 |                                           const char* start_bitrate_kbps, | 
 |                                           int expected_start_bitrate_bps, | 
 |                                           const char* max_bitrate_kbps, | 
 |                                           int expected_max_bitrate_bps) { | 
 |     EXPECT_TRUE(SetupSendStream()); | 
 |     auto& codecs = send_parameters_.codecs; | 
 |     codecs.clear(); | 
 |     codecs.push_back(kOpusCodec); | 
 |     codecs[0].params[cricket::kCodecParamMinBitrate] = min_bitrate_kbps; | 
 |     codecs[0].params[cricket::kCodecParamStartBitrate] = start_bitrate_kbps; | 
 |     codecs[0].params[cricket::kCodecParamMaxBitrate] = max_bitrate_kbps; | 
 |     SetSendParameters(send_parameters_); | 
 |  | 
 |     EXPECT_EQ(expected_min_bitrate_bps, | 
 |               call_.GetConfig().bitrate_config.min_bitrate_bps); | 
 |     EXPECT_EQ(expected_start_bitrate_bps, | 
 |               call_.GetConfig().bitrate_config.start_bitrate_bps); | 
 |     EXPECT_EQ(expected_max_bitrate_bps, | 
 |               call_.GetConfig().bitrate_config.max_bitrate_bps); | 
 |   } | 
 |  | 
 |   void TestSetSendRtpHeaderExtensions(const std::string& ext) { | 
 |     EXPECT_TRUE(SetupSendStream()); | 
 |  | 
 |     // Ensure extensions are off by default. | 
 |     EXPECT_EQ(0u, GetSendStreamConfig(kSsrcX).rtp.extensions.size()); | 
 |  | 
 |     // Ensure unknown extensions won't cause an error. | 
 |     send_parameters_.extensions.push_back( | 
 |         webrtc::RtpExtension("urn:ietf:params:unknownextention", 1)); | 
 |     SetSendParameters(send_parameters_); | 
 |     EXPECT_EQ(0u, GetSendStreamConfig(kSsrcX).rtp.extensions.size()); | 
 |  | 
 |     // Ensure extensions stay off with an empty list of headers. | 
 |     send_parameters_.extensions.clear(); | 
 |     SetSendParameters(send_parameters_); | 
 |     EXPECT_EQ(0u, GetSendStreamConfig(kSsrcX).rtp.extensions.size()); | 
 |  | 
 |     // Ensure extension is set properly. | 
 |     const int id = 1; | 
 |     send_parameters_.extensions.push_back(webrtc::RtpExtension(ext, id)); | 
 |     SetSendParameters(send_parameters_); | 
 |     EXPECT_EQ(1u, GetSendStreamConfig(kSsrcX).rtp.extensions.size()); | 
 |     EXPECT_EQ(ext, GetSendStreamConfig(kSsrcX).rtp.extensions[0].uri); | 
 |     EXPECT_EQ(id, GetSendStreamConfig(kSsrcX).rtp.extensions[0].id); | 
 |  | 
 |     // Ensure extension is set properly on new stream. | 
 |     EXPECT_TRUE(channel_->AddSendStream( | 
 |         cricket::StreamParams::CreateLegacy(kSsrcY))); | 
 |     EXPECT_NE(call_.GetAudioSendStream(kSsrcX), | 
 |               call_.GetAudioSendStream(kSsrcY)); | 
 |     EXPECT_EQ(1u, GetSendStreamConfig(kSsrcY).rtp.extensions.size()); | 
 |     EXPECT_EQ(ext, GetSendStreamConfig(kSsrcY).rtp.extensions[0].uri); | 
 |     EXPECT_EQ(id, GetSendStreamConfig(kSsrcY).rtp.extensions[0].id); | 
 |  | 
 |     // Ensure all extensions go back off with an empty list. | 
 |     send_parameters_.codecs.push_back(kPcmuCodec); | 
 |     send_parameters_.extensions.clear(); | 
 |     SetSendParameters(send_parameters_); | 
 |     EXPECT_EQ(0u, GetSendStreamConfig(kSsrcX).rtp.extensions.size()); | 
 |     EXPECT_EQ(0u, GetSendStreamConfig(kSsrcY).rtp.extensions.size()); | 
 |   } | 
 |  | 
 |   void TestSetRecvRtpHeaderExtensions(const std::string& ext) { | 
 |     EXPECT_TRUE(SetupRecvStream()); | 
 |  | 
 |     // Ensure extensions are off by default. | 
 |     EXPECT_EQ(0u, GetRecvStreamConfig(kSsrcX).rtp.extensions.size()); | 
 |  | 
 |     // Ensure unknown extensions won't cause an error. | 
 |     recv_parameters_.extensions.push_back( | 
 |         webrtc::RtpExtension("urn:ietf:params:unknownextention", 1)); | 
 |     EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_)); | 
 |     EXPECT_EQ(0u, GetRecvStreamConfig(kSsrcX).rtp.extensions.size()); | 
 |  | 
 |     // Ensure extensions stay off with an empty list of headers. | 
 |     recv_parameters_.extensions.clear(); | 
 |     EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_)); | 
 |     EXPECT_EQ(0u, GetRecvStreamConfig(kSsrcX).rtp.extensions.size()); | 
 |  | 
 |     // Ensure extension is set properly. | 
 |     const int id = 2; | 
 |     recv_parameters_.extensions.push_back(webrtc::RtpExtension(ext, id)); | 
 |     EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_)); | 
 |     EXPECT_EQ(1u, GetRecvStreamConfig(kSsrcX).rtp.extensions.size()); | 
 |     EXPECT_EQ(ext, GetRecvStreamConfig(kSsrcX).rtp.extensions[0].uri); | 
 |     EXPECT_EQ(id, GetRecvStreamConfig(kSsrcX).rtp.extensions[0].id); | 
 |  | 
 |     // Ensure extension is set properly on new stream. | 
 |     EXPECT_TRUE(AddRecvStream(kSsrcY)); | 
 |     EXPECT_NE(call_.GetAudioReceiveStream(kSsrcX), | 
 |               call_.GetAudioReceiveStream(kSsrcY)); | 
 |     EXPECT_EQ(1u, GetRecvStreamConfig(kSsrcY).rtp.extensions.size()); | 
 |     EXPECT_EQ(ext, GetRecvStreamConfig(kSsrcY).rtp.extensions[0].uri); | 
 |     EXPECT_EQ(id, GetRecvStreamConfig(kSsrcY).rtp.extensions[0].id); | 
 |  | 
 |     // Ensure all extensions go back off with an empty list. | 
 |     recv_parameters_.extensions.clear(); | 
 |     EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_)); | 
 |     EXPECT_EQ(0u, GetRecvStreamConfig(kSsrcX).rtp.extensions.size()); | 
 |     EXPECT_EQ(0u, GetRecvStreamConfig(kSsrcY).rtp.extensions.size()); | 
 |   } | 
 |  | 
 |   webrtc::AudioSendStream::Stats GetAudioSendStreamStats() const { | 
 |     webrtc::AudioSendStream::Stats stats; | 
 |     stats.local_ssrc = 12; | 
 |     stats.bytes_sent = 345; | 
 |     stats.packets_sent = 678; | 
 |     stats.packets_lost = 9012; | 
 |     stats.fraction_lost = 34.56f; | 
 |     stats.codec_name = "codec_name_send"; | 
 |     stats.codec_payload_type = rtc::Optional<int>(42); | 
 |     stats.ext_seqnum = 789; | 
 |     stats.jitter_ms = 12; | 
 |     stats.rtt_ms = 345; | 
 |     stats.audio_level = 678; | 
 |     stats.aec_quality_min = 9.01f; | 
 |     stats.echo_delay_median_ms = 234; | 
 |     stats.echo_delay_std_ms = 567; | 
 |     stats.echo_return_loss = 890; | 
 |     stats.echo_return_loss_enhancement = 1234; | 
 |     stats.residual_echo_likelihood = 0.432f; | 
 |     stats.residual_echo_likelihood_recent_max = 0.6f; | 
 |     stats.typing_noise_detected = true; | 
 |     return stats; | 
 |   } | 
 |   void SetAudioSendStreamStats() { | 
 |     for (auto* s : call_.GetAudioSendStreams()) { | 
 |       s->SetStats(GetAudioSendStreamStats()); | 
 |     } | 
 |   } | 
 |   void VerifyVoiceSenderInfo(const cricket::VoiceSenderInfo& info, | 
 |                              bool is_sending) { | 
 |     const auto stats = GetAudioSendStreamStats(); | 
 |     EXPECT_EQ(info.ssrc(), stats.local_ssrc); | 
 |     EXPECT_EQ(info.bytes_sent, stats.bytes_sent); | 
 |     EXPECT_EQ(info.packets_sent, stats.packets_sent); | 
 |     EXPECT_EQ(info.packets_lost, stats.packets_lost); | 
 |     EXPECT_EQ(info.fraction_lost, stats.fraction_lost); | 
 |     EXPECT_EQ(info.codec_name, stats.codec_name); | 
 |     EXPECT_EQ(info.codec_payload_type, stats.codec_payload_type); | 
 |     EXPECT_EQ(info.ext_seqnum, stats.ext_seqnum); | 
 |     EXPECT_EQ(info.jitter_ms, stats.jitter_ms); | 
 |     EXPECT_EQ(info.rtt_ms, stats.rtt_ms); | 
 |     EXPECT_EQ(info.audio_level, stats.audio_level); | 
 |     EXPECT_EQ(info.aec_quality_min, stats.aec_quality_min); | 
 |     EXPECT_EQ(info.echo_delay_median_ms, stats.echo_delay_median_ms); | 
 |     EXPECT_EQ(info.echo_delay_std_ms, stats.echo_delay_std_ms); | 
 |     EXPECT_EQ(info.echo_return_loss, stats.echo_return_loss); | 
 |     EXPECT_EQ(info.echo_return_loss_enhancement, | 
 |               stats.echo_return_loss_enhancement); | 
 |     EXPECT_EQ(info.residual_echo_likelihood, stats.residual_echo_likelihood); | 
 |     EXPECT_EQ(info.residual_echo_likelihood_recent_max, | 
 |               stats.residual_echo_likelihood_recent_max); | 
 |     EXPECT_EQ(info.typing_noise_detected, | 
 |               stats.typing_noise_detected && is_sending); | 
 |   } | 
 |  | 
 |   webrtc::AudioReceiveStream::Stats GetAudioReceiveStreamStats() const { | 
 |     webrtc::AudioReceiveStream::Stats stats; | 
 |     stats.remote_ssrc = 123; | 
 |     stats.bytes_rcvd = 456; | 
 |     stats.packets_rcvd = 768; | 
 |     stats.packets_lost = 101; | 
 |     stats.fraction_lost = 23.45f; | 
 |     stats.codec_name = "codec_name_recv"; | 
 |     stats.codec_payload_type = rtc::Optional<int>(42); | 
 |     stats.ext_seqnum = 678; | 
 |     stats.jitter_ms = 901; | 
 |     stats.jitter_buffer_ms = 234; | 
 |     stats.jitter_buffer_preferred_ms = 567; | 
 |     stats.delay_estimate_ms = 890; | 
 |     stats.audio_level = 1234; | 
 |     stats.expand_rate = 5.67f; | 
 |     stats.speech_expand_rate = 8.90f; | 
 |     stats.secondary_decoded_rate = 1.23f; | 
 |     stats.accelerate_rate = 4.56f; | 
 |     stats.preemptive_expand_rate = 7.89f; | 
 |     stats.decoding_calls_to_silence_generator = 12; | 
 |     stats.decoding_calls_to_neteq = 345; | 
 |     stats.decoding_normal = 67890; | 
 |     stats.decoding_plc = 1234; | 
 |     stats.decoding_cng = 5678; | 
 |     stats.decoding_plc_cng = 9012; | 
 |     stats.decoding_muted_output = 3456; | 
 |     stats.capture_start_ntp_time_ms = 7890; | 
 |     return stats; | 
 |   } | 
 |   void SetAudioReceiveStreamStats() { | 
 |     for (auto* s : call_.GetAudioReceiveStreams()) { | 
 |       s->SetStats(GetAudioReceiveStreamStats()); | 
 |     } | 
 |   } | 
 |   void VerifyVoiceReceiverInfo(const cricket::VoiceReceiverInfo& info) { | 
 |     const auto stats = GetAudioReceiveStreamStats(); | 
 |     EXPECT_EQ(info.ssrc(), stats.remote_ssrc); | 
 |     EXPECT_EQ(info.bytes_rcvd, stats.bytes_rcvd); | 
 |     EXPECT_EQ(info.packets_rcvd, stats.packets_rcvd); | 
 |     EXPECT_EQ(info.packets_lost, stats.packets_lost); | 
 |     EXPECT_EQ(info.fraction_lost, stats.fraction_lost); | 
 |     EXPECT_EQ(info.codec_name, stats.codec_name); | 
 |     EXPECT_EQ(info.codec_payload_type, stats.codec_payload_type); | 
 |     EXPECT_EQ(info.ext_seqnum, stats.ext_seqnum); | 
 |     EXPECT_EQ(info.jitter_ms, stats.jitter_ms); | 
 |     EXPECT_EQ(info.jitter_buffer_ms, stats.jitter_buffer_ms); | 
 |     EXPECT_EQ(info.jitter_buffer_preferred_ms, | 
 |               stats.jitter_buffer_preferred_ms); | 
 |     EXPECT_EQ(info.delay_estimate_ms, stats.delay_estimate_ms); | 
 |     EXPECT_EQ(info.audio_level, stats.audio_level); | 
 |     EXPECT_EQ(info.expand_rate, stats.expand_rate); | 
 |     EXPECT_EQ(info.speech_expand_rate, stats.speech_expand_rate); | 
 |     EXPECT_EQ(info.secondary_decoded_rate, stats.secondary_decoded_rate); | 
 |     EXPECT_EQ(info.accelerate_rate, stats.accelerate_rate); | 
 |     EXPECT_EQ(info.preemptive_expand_rate, stats.preemptive_expand_rate); | 
 |     EXPECT_EQ(info.decoding_calls_to_silence_generator, | 
 |               stats.decoding_calls_to_silence_generator); | 
 |     EXPECT_EQ(info.decoding_calls_to_neteq, stats.decoding_calls_to_neteq); | 
 |     EXPECT_EQ(info.decoding_normal, stats.decoding_normal); | 
 |     EXPECT_EQ(info.decoding_plc, stats.decoding_plc); | 
 |     EXPECT_EQ(info.decoding_cng, stats.decoding_cng); | 
 |     EXPECT_EQ(info.decoding_plc_cng, stats.decoding_plc_cng); | 
 |     EXPECT_EQ(info.decoding_muted_output, stats.decoding_muted_output); | 
 |     EXPECT_EQ(info.capture_start_ntp_time_ms, stats.capture_start_ntp_time_ms); | 
 |   } | 
 |   void VerifyVoiceSendRecvCodecs(const cricket::VoiceMediaInfo& info) const { | 
 |     EXPECT_EQ(send_parameters_.codecs.size(), info.send_codecs.size()); | 
 |     for (const cricket::AudioCodec& codec : send_parameters_.codecs) { | 
 |       ASSERT_EQ(info.send_codecs.count(codec.id), 1U); | 
 |       EXPECT_EQ(info.send_codecs.find(codec.id)->second, | 
 |                 codec.ToCodecParameters()); | 
 |     } | 
 |     EXPECT_EQ(recv_parameters_.codecs.size(), info.receive_codecs.size()); | 
 |     for (const cricket::AudioCodec& codec : recv_parameters_.codecs) { | 
 |       ASSERT_EQ(info.receive_codecs.count(codec.id), 1U); | 
 |       EXPECT_EQ(info.receive_codecs.find(codec.id)->second, | 
 |                 codec.ToCodecParameters()); | 
 |     } | 
 |   } | 
 |  | 
 |   bool IsHighPassFilterEnabled() { | 
 |     return engine_->GetApmConfigForTest().high_pass_filter.enabled; | 
 |   } | 
 |  | 
 |  protected: | 
 |   StrictMock<webrtc::test::MockAudioDeviceModule> adm_; | 
 |   StrictMock<webrtc::test::MockAudioProcessing> apm_; | 
 |   webrtc::test::MockGainControl& apm_gc_; | 
 |   webrtc::test::MockEchoCancellation& apm_ec_; | 
 |   webrtc::test::MockNoiseSuppression& apm_ns_; | 
 |   webrtc::test::MockVoiceDetection& apm_vd_; | 
 |   StrictMock<MockTransmitMixer> transmit_mixer_; | 
 |   webrtc::RtcEventLogNullImpl event_log_; | 
 |   cricket::FakeCall call_; | 
 |   cricket::FakeWebRtcVoiceEngine voe_; | 
 |   std::unique_ptr<cricket::WebRtcVoiceEngine> engine_; | 
 |   cricket::VoiceMediaChannel* channel_ = nullptr; | 
 |   cricket::AudioSendParameters send_parameters_; | 
 |   cricket::AudioRecvParameters recv_parameters_; | 
 |   FakeAudioSource fake_source_; | 
 |  private: | 
 |   webrtc::test::ScopedFieldTrials override_field_trials_; | 
 | }; | 
 |  | 
 | // Tests that we can create and destroy a channel. | 
 | TEST_F(WebRtcVoiceEngineTestFake, CreateChannel) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 | } | 
 |  | 
 | // Test that we can add a send stream and that it has the correct defaults. | 
 | TEST_F(WebRtcVoiceEngineTestFake, CreateSendStream) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   EXPECT_TRUE( | 
 |       channel_->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrcX))); | 
 |   const webrtc::AudioSendStream::Config& config = GetSendStreamConfig(kSsrcX); | 
 |   EXPECT_EQ(kSsrcX, config.rtp.ssrc); | 
 |   EXPECT_EQ("", config.rtp.c_name); | 
 |   EXPECT_EQ(0u, config.rtp.extensions.size()); | 
 |   EXPECT_EQ(static_cast<cricket::WebRtcVoiceMediaChannel*>(channel_), | 
 |             config.send_transport); | 
 | } | 
 |  | 
 | // Test that we can add a receive stream and that it has the correct defaults. | 
 | TEST_F(WebRtcVoiceEngineTestFake, CreateRecvStream) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcX)); | 
 |   const webrtc::AudioReceiveStream::Config& config = | 
 |       GetRecvStreamConfig(kSsrcX); | 
 |   EXPECT_EQ(kSsrcX, config.rtp.remote_ssrc); | 
 |   EXPECT_EQ(0xFA17FA17, config.rtp.local_ssrc); | 
 |   EXPECT_FALSE(config.rtp.transport_cc); | 
 |   EXPECT_EQ(0u, config.rtp.extensions.size()); | 
 |   EXPECT_EQ(static_cast<cricket::WebRtcVoiceMediaChannel*>(channel_), | 
 |             config.rtcp_send_transport); | 
 |   EXPECT_EQ("", config.sync_group); | 
 | } | 
 |  | 
 | // Tests that the list of supported codecs is created properly and ordered | 
 | // correctly (such that opus appears first). | 
 | // TODO(ossu): This test should move into a separate builtin audio codecs | 
 | // module. | 
 | TEST_F(WebRtcVoiceEngineTestFake, CodecOrder) { | 
 |   const std::vector<cricket::AudioCodec>& codecs = engine_->send_codecs(); | 
 |   ASSERT_FALSE(codecs.empty()); | 
 |   EXPECT_STRCASEEQ("opus", codecs[0].name.c_str()); | 
 |   EXPECT_EQ(48000, codecs[0].clockrate); | 
 |   EXPECT_EQ(2, codecs[0].channels); | 
 |   EXPECT_EQ(64000, codecs[0].bitrate); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, OpusSupportsTransportCc) { | 
 |   const std::vector<cricket::AudioCodec>& codecs = engine_->send_codecs(); | 
 |   bool opus_found = false; | 
 |   for (cricket::AudioCodec codec : codecs) { | 
 |     if (codec.name == "opus") { | 
 |       EXPECT_TRUE(HasTransportCc(codec)); | 
 |       opus_found = true; | 
 |     } | 
 |   } | 
 |   EXPECT_TRUE(opus_found); | 
 | } | 
 |  | 
 | // Tests that we can find codecs by name or id, and that we interpret the | 
 | // clockrate and bitrate fields properly. | 
 | TEST_F(WebRtcVoiceEngineTestFake, FindCodec) { | 
 |   cricket::AudioCodec codec; | 
 |   webrtc::CodecInst codec_inst; | 
 |   // Find PCMU with explicit clockrate and bitrate. | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst(kPcmuCodec, &codec_inst)); | 
 |   // Find ISAC with explicit clockrate and 0 bitrate. | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst(kIsacCodec, &codec_inst)); | 
 |   // Find telephone-event with explicit clockrate and 0 bitrate. | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst(kTelephoneEventCodec1, | 
 |                                                       &codec_inst)); | 
 |   // Find telephone-event with explicit clockrate and 0 bitrate. | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst(kTelephoneEventCodec2, | 
 |                                                       &codec_inst)); | 
 |   // Find ISAC with a different payload id. | 
 |   codec = kIsacCodec; | 
 |   codec.id = 127; | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst(codec, &codec_inst)); | 
 |   EXPECT_EQ(codec.id, codec_inst.pltype); | 
 |   // Find PCMU with a 0 clockrate. | 
 |   codec = kPcmuCodec; | 
 |   codec.clockrate = 0; | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst(codec, &codec_inst)); | 
 |   EXPECT_EQ(codec.id, codec_inst.pltype); | 
 |   EXPECT_EQ(8000, codec_inst.plfreq); | 
 |   // Find PCMU with a 0 bitrate. | 
 |   codec = kPcmuCodec; | 
 |   codec.bitrate = 0; | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst(codec, &codec_inst)); | 
 |   EXPECT_EQ(codec.id, codec_inst.pltype); | 
 |   EXPECT_EQ(64000, codec_inst.rate); | 
 |   // Find ISAC with an explicit bitrate. | 
 |   codec = kIsacCodec; | 
 |   codec.bitrate = 32000; | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst(codec, &codec_inst)); | 
 |   EXPECT_EQ(codec.id, codec_inst.pltype); | 
 |   EXPECT_EQ(32000, codec_inst.rate); | 
 | } | 
 |  | 
 | // Test that we set our inbound codecs properly, including changing PT. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetRecvCodecs) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   parameters.codecs.push_back(kTelephoneEventCodec1); | 
 |   parameters.codecs.push_back(kTelephoneEventCodec2); | 
 |   parameters.codecs[0].id = 106;  // collide with existing CN 32k | 
 |   parameters.codecs[2].id = 126; | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcX)); | 
 |   EXPECT_THAT(GetRecvStreamConfig(kSsrcX).decoder_map, | 
 |               (ContainerEq<std::map<int, webrtc::SdpAudioFormat>>( | 
 |                   {{0, {"PCMU", 8000, 1}}, | 
 |                    {106, {"ISAC", 16000, 1}}, | 
 |                    {126, {"telephone-event", 8000, 1}}, | 
 |                    {107, {"telephone-event", 32000, 1}}}))); | 
 | } | 
 |  | 
 | // Test that we fail to set an unknown inbound codec. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetRecvCodecsUnsupportedCodec) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(cricket::AudioCodec(127, "XYZ", 32000, 0, 1)); | 
 |   EXPECT_FALSE(channel_->SetRecvParameters(parameters)); | 
 | } | 
 |  | 
 | // Test that we fail if we have duplicate types in the inbound list. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetRecvCodecsDuplicatePayloadType) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kCn16000Codec); | 
 |   parameters.codecs[1].id = kIsacCodec.id; | 
 |   EXPECT_FALSE(channel_->SetRecvParameters(parameters)); | 
 | } | 
 |  | 
 | // Test that we can decode OPUS without stereo parameters. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetRecvCodecsWithOpusNoStereo) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcX)); | 
 |   EXPECT_THAT(GetRecvStreamConfig(kSsrcX).decoder_map, | 
 |               (ContainerEq<std::map<int, webrtc::SdpAudioFormat>>( | 
 |                   {{0, {"PCMU", 8000, 1}}, | 
 |                    {103, {"ISAC", 16000, 1}}, | 
 |                    {111, {"opus", 48000, 2}}}))); | 
 | } | 
 |  | 
 | // Test that we can decode OPUS with stereo = 0. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetRecvCodecsWithOpus0Stereo) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[2].params["stereo"] = "0"; | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcX)); | 
 |   EXPECT_THAT(GetRecvStreamConfig(kSsrcX).decoder_map, | 
 |               (ContainerEq<std::map<int, webrtc::SdpAudioFormat>>( | 
 |                   {{0, {"PCMU", 8000, 1}}, | 
 |                    {103, {"ISAC", 16000, 1}}, | 
 |                    {111, {"opus", 48000, 2, {{"stereo", "0"}}}}}))); | 
 | } | 
 |  | 
 | // Test that we can decode OPUS with stereo = 1. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetRecvCodecsWithOpus1Stereo) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[2].params["stereo"] = "1"; | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcX)); | 
 |   EXPECT_THAT(GetRecvStreamConfig(kSsrcX).decoder_map, | 
 |               (ContainerEq<std::map<int, webrtc::SdpAudioFormat>>( | 
 |                   {{0, {"PCMU", 8000, 1}}, | 
 |                    {103, {"ISAC", 16000, 1}}, | 
 |                    {111, {"opus", 48000, 2, {{"stereo", "1"}}}}}))); | 
 | } | 
 |  | 
 | // Test that changes to recv codecs are applied to all streams. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetRecvCodecsWithMultipleStreams) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   parameters.codecs.push_back(kTelephoneEventCodec1); | 
 |   parameters.codecs.push_back(kTelephoneEventCodec2); | 
 |   parameters.codecs[0].id = 106;  // collide with existing CN 32k | 
 |   parameters.codecs[2].id = 126; | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |   for (const auto& ssrc : {kSsrcX, kSsrcY}) { | 
 |     EXPECT_TRUE(AddRecvStream(ssrc)); | 
 |     EXPECT_THAT(GetRecvStreamConfig(ssrc).decoder_map, | 
 |                 (ContainerEq<std::map<int, webrtc::SdpAudioFormat>>( | 
 |                     {{0, {"PCMU", 8000, 1}}, | 
 |                      {106, {"ISAC", 16000, 1}}, | 
 |                      {126, {"telephone-event", 8000, 1}}, | 
 |                      {107, {"telephone-event", 32000, 1}}}))); | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetRecvCodecsAfterAddingStreams) { | 
 |   EXPECT_TRUE(SetupRecvStream()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs[0].id = 106;  // collide with existing CN 32k | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |  | 
 |   const auto& dm = GetRecvStreamConfig(kSsrcX).decoder_map; | 
 |   ASSERT_EQ(1, dm.count(106)); | 
 |   EXPECT_EQ(webrtc::SdpAudioFormat("isac", 16000, 1), dm.at(106)); | 
 | } | 
 |  | 
 | // Test that we can apply the same set of codecs again while playing. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetRecvCodecsWhilePlaying) { | 
 |   EXPECT_TRUE(SetupRecvStream()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kCn16000Codec); | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |   channel_->SetPlayout(true); | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |  | 
 |   // Changing the payload type of a codec should fail. | 
 |   parameters.codecs[0].id = 127; | 
 |   EXPECT_FALSE(channel_->SetRecvParameters(parameters)); | 
 |   EXPECT_TRUE(GetRecvStream(kSsrcX).started()); | 
 | } | 
 |  | 
 | // Test that we can add a codec while playing. | 
 | TEST_F(WebRtcVoiceEngineTestFake, AddRecvCodecsWhilePlaying) { | 
 |   EXPECT_TRUE(SetupRecvStream()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kCn16000Codec); | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |   channel_->SetPlayout(true); | 
 |  | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |   EXPECT_TRUE(GetRecvStream(kSsrcX).started()); | 
 |   webrtc::CodecInst gcodec; | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst(kOpusCodec, &gcodec)); | 
 |   EXPECT_EQ(kOpusCodec.id, gcodec.pltype); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendBandwidthAuto) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |  | 
 |   // Test that when autobw is enabled, bitrate is kept as the default | 
 |   // value. autobw is enabled for the following tests because the target | 
 |   // bitrate is <= 0. | 
 |  | 
 |   // ISAC, default bitrate == 32000. | 
 |   TestMaxSendBandwidth(kIsacCodec, 0, true, 32000); | 
 |  | 
 |   // PCMU, default bitrate == 64000. | 
 |   TestMaxSendBandwidth(kPcmuCodec, -1, true, 64000); | 
 |  | 
 |   // opus, default bitrate == 64000. | 
 |   TestMaxSendBandwidth(kOpusCodec, -1, true, 64000); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetMaxSendBandwidthMultiRateAsCaller) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |  | 
 |   // Test that the bitrate of a multi-rate codec is always the maximum. | 
 |  | 
 |   // ISAC, default bitrate == 32000. | 
 |   TestMaxSendBandwidth(kIsacCodec, 40000, true, 40000); | 
 |   TestMaxSendBandwidth(kIsacCodec, 16000, true, 16000); | 
 |   // Rates above the max (56000) should be capped. | 
 |   TestMaxSendBandwidth(kIsacCodec, 100000, true, 56000); | 
 |  | 
 |   // opus, default bitrate == 64000. | 
 |   TestMaxSendBandwidth(kOpusCodec, 96000, true, 96000); | 
 |   TestMaxSendBandwidth(kOpusCodec, 48000, true, 48000); | 
 |   // Rates above the max (510000) should be capped. | 
 |   TestMaxSendBandwidth(kOpusCodec, 600000, true, 510000); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetMaxSendBandwidthFixedRateAsCaller) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |  | 
 |   // Test that we can only set a maximum bitrate for a fixed-rate codec | 
 |   // if it's bigger than the fixed rate. | 
 |  | 
 |   // PCMU, fixed bitrate == 64000. | 
 |   TestMaxSendBandwidth(kPcmuCodec, 0, true, 64000); | 
 |   TestMaxSendBandwidth(kPcmuCodec, 1, false, 64000); | 
 |   TestMaxSendBandwidth(kPcmuCodec, 128000, true, 64000); | 
 |   TestMaxSendBandwidth(kPcmuCodec, 32000, false, 64000); | 
 |   TestMaxSendBandwidth(kPcmuCodec, 64000, true, 64000); | 
 |   TestMaxSendBandwidth(kPcmuCodec, 63999, false, 64000); | 
 |   TestMaxSendBandwidth(kPcmuCodec, 64001, true, 64000); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetMaxSendBandwidthMultiRateAsCallee) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   const int kDesiredBitrate = 128000; | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs = engine_->send_codecs(); | 
 |   parameters.max_bandwidth_bps = kDesiredBitrate; | 
 |   SetSendParameters(parameters); | 
 |  | 
 |   EXPECT_TRUE(channel_->AddSendStream( | 
 |       cricket::StreamParams::CreateLegacy(kSsrcX))); | 
 |  | 
 |   EXPECT_EQ(kDesiredBitrate, GetCodecBitrate(kSsrcX)); | 
 | } | 
 |  | 
 | // Test that bitrate cannot be set for CBR codecs. | 
 | // Bitrate is ignored if it is higher than the fixed bitrate. | 
 | // Bitrate less then the fixed bitrate is an error. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetMaxSendBandwidthCbr) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |  | 
 |   // PCMU, default bitrate == 64000. | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_EQ(64000, GetCodecBitrate(kSsrcX)); | 
 |  | 
 |   send_parameters_.max_bandwidth_bps = 128000; | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_EQ(64000, GetCodecBitrate(kSsrcX)); | 
 |  | 
 |   send_parameters_.max_bandwidth_bps = 128; | 
 |   EXPECT_FALSE(channel_->SetSendParameters(send_parameters_)); | 
 |   EXPECT_EQ(64000, GetCodecBitrate(kSsrcX)); | 
 | } | 
 |  | 
 | // Test that the per-stream bitrate limit and the global | 
 | // bitrate limit both apply. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetMaxBitratePerStream) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |  | 
 |   // opus, default bitrate == 64000. | 
 |   SetAndExpectMaxBitrate(kOpusCodec, 0, 0, true, 64000); | 
 |   SetAndExpectMaxBitrate(kOpusCodec, 48000, 0, true, 48000); | 
 |   SetAndExpectMaxBitrate(kOpusCodec, 48000, 64000, true, 48000); | 
 |   SetAndExpectMaxBitrate(kOpusCodec, 64000, 48000, true, 48000); | 
 |  | 
 |   // CBR codecs allow both maximums to exceed the bitrate. | 
 |   SetAndExpectMaxBitrate(kPcmuCodec, 0, 0, true, 64000); | 
 |   SetAndExpectMaxBitrate(kPcmuCodec, 64001, 0, true, 64000); | 
 |   SetAndExpectMaxBitrate(kPcmuCodec, 0, 64001, true, 64000); | 
 |   SetAndExpectMaxBitrate(kPcmuCodec, 64001, 64001, true, 64000); | 
 |  | 
 |   // CBR codecs don't allow per stream maximums to be too low. | 
 |   SetAndExpectMaxBitrate(kPcmuCodec, 0, 63999, false, 64000); | 
 |   SetAndExpectMaxBitrate(kPcmuCodec, 64001, 63999, false, 64000); | 
 | } | 
 |  | 
 | // Test that an attempt to set RtpParameters for a stream that does not exist | 
 | // fails. | 
 | TEST_F(WebRtcVoiceEngineTestFake, CannotSetMaxBitrateForNonexistentStream) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   webrtc::RtpParameters nonexistent_parameters = | 
 |       channel_->GetRtpSendParameters(kSsrcX); | 
 |   EXPECT_EQ(0, nonexistent_parameters.encodings.size()); | 
 |  | 
 |   nonexistent_parameters.encodings.push_back(webrtc::RtpEncodingParameters()); | 
 |   EXPECT_FALSE(channel_->SetRtpSendParameters(kSsrcX, nonexistent_parameters)); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, | 
 |        CannotSetRtpSendParametersWithIncorrectNumberOfEncodings) { | 
 |   // This test verifies that setting RtpParameters succeeds only if | 
 |   // the structure contains exactly one encoding. | 
 |   // TODO(skvlad): Update this test when we start supporting setting parameters | 
 |   // for each encoding individually. | 
 |  | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(kSsrcX); | 
 |   // Two or more encodings should result in failure. | 
 |   parameters.encodings.push_back(webrtc::RtpEncodingParameters()); | 
 |   EXPECT_FALSE(channel_->SetRtpSendParameters(kSsrcX, parameters)); | 
 |   // Zero encodings should also fail. | 
 |   parameters.encodings.clear(); | 
 |   EXPECT_FALSE(channel_->SetRtpSendParameters(kSsrcX, parameters)); | 
 | } | 
 |  | 
 | // Changing the SSRC through RtpParameters is not allowed. | 
 | TEST_F(WebRtcVoiceEngineTestFake, CannotSetSsrcInRtpSendParameters) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(kSsrcX); | 
 |   parameters.encodings[0].ssrc = rtc::Optional<uint32_t>(0xdeadbeef); | 
 |   EXPECT_FALSE(channel_->SetRtpSendParameters(kSsrcX, parameters)); | 
 | } | 
 |  | 
 | // Test that a stream will not be sending if its encoding is made | 
 | // inactive through SetRtpSendParameters. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetRtpParametersEncodingsActive) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   SetSend(true); | 
 |   EXPECT_TRUE(GetSendStream(kSsrcX).IsSending()); | 
 |   // Get current parameters and change "active" to false. | 
 |   webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(kSsrcX); | 
 |   ASSERT_EQ(1u, parameters.encodings.size()); | 
 |   ASSERT_TRUE(parameters.encodings[0].active); | 
 |   parameters.encodings[0].active = false; | 
 |   EXPECT_TRUE(channel_->SetRtpSendParameters(kSsrcX, parameters)); | 
 |   EXPECT_FALSE(GetSendStream(kSsrcX).IsSending()); | 
 |  | 
 |   // Now change it back to active and verify we resume sending. | 
 |   parameters.encodings[0].active = true; | 
 |   EXPECT_TRUE(channel_->SetRtpSendParameters(kSsrcX, parameters)); | 
 |   EXPECT_TRUE(GetSendStream(kSsrcX).IsSending()); | 
 | } | 
 |  | 
 | // Test that SetRtpSendParameters configures the correct encoding channel for | 
 | // each SSRC. | 
 | TEST_F(WebRtcVoiceEngineTestFake, RtpParametersArePerStream) { | 
 |   SetupForMultiSendStream(); | 
 |   // Create send streams. | 
 |   for (uint32_t ssrc : kSsrcs4) { | 
 |     EXPECT_TRUE( | 
 |         channel_->AddSendStream(cricket::StreamParams::CreateLegacy(ssrc))); | 
 |   } | 
 |   // Configure one stream to be limited by the stream config, another to be | 
 |   // limited by the global max, and the third one with no per-stream limit | 
 |   // (still subject to the global limit). | 
 |   SetGlobalMaxBitrate(kOpusCodec, 64000); | 
 |   EXPECT_TRUE(SetMaxBitrateForStream(kSsrcs4[0], 48000)); | 
 |   EXPECT_TRUE(SetMaxBitrateForStream(kSsrcs4[1], 96000)); | 
 |   EXPECT_TRUE(SetMaxBitrateForStream(kSsrcs4[2], -1)); | 
 |  | 
 |   EXPECT_EQ(48000, GetCodecBitrate(kSsrcs4[0])); | 
 |   EXPECT_EQ(64000, GetCodecBitrate(kSsrcs4[1])); | 
 |   EXPECT_EQ(64000, GetCodecBitrate(kSsrcs4[2])); | 
 |  | 
 |   // Remove the global cap; the streams should switch to their respective | 
 |   // maximums (or remain unchanged if there was no other limit on them.) | 
 |   SetGlobalMaxBitrate(kOpusCodec, -1); | 
 |   EXPECT_EQ(48000, GetCodecBitrate(kSsrcs4[0])); | 
 |   EXPECT_EQ(96000, GetCodecBitrate(kSsrcs4[1])); | 
 |   EXPECT_EQ(64000, GetCodecBitrate(kSsrcs4[2])); | 
 | } | 
 |  | 
 | // Test that GetRtpSendParameters returns the currently configured codecs. | 
 | TEST_F(WebRtcVoiceEngineTestFake, GetRtpSendParametersCodecs) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   SetSendParameters(parameters); | 
 |  | 
 |   webrtc::RtpParameters rtp_parameters = channel_->GetRtpSendParameters(kSsrcX); | 
 |   ASSERT_EQ(2u, rtp_parameters.codecs.size()); | 
 |   EXPECT_EQ(kIsacCodec.ToCodecParameters(), rtp_parameters.codecs[0]); | 
 |   EXPECT_EQ(kPcmuCodec.ToCodecParameters(), rtp_parameters.codecs[1]); | 
 | } | 
 |  | 
 | // Test that GetRtpSendParameters returns an SSRC. | 
 | TEST_F(WebRtcVoiceEngineTestFake, GetRtpSendParametersSsrc) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   webrtc::RtpParameters rtp_parameters = channel_->GetRtpSendParameters(kSsrcX); | 
 |   ASSERT_EQ(1u, rtp_parameters.encodings.size()); | 
 |   EXPECT_EQ(kSsrcX, rtp_parameters.encodings[0].ssrc); | 
 | } | 
 |  | 
 | // Test that if we set/get parameters multiple times, we get the same results. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetAndGetRtpSendParameters) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   SetSendParameters(parameters); | 
 |  | 
 |   webrtc::RtpParameters initial_params = channel_->GetRtpSendParameters(kSsrcX); | 
 |  | 
 |   // We should be able to set the params we just got. | 
 |   EXPECT_TRUE(channel_->SetRtpSendParameters(kSsrcX, initial_params)); | 
 |  | 
 |   // ... And this shouldn't change the params returned by GetRtpSendParameters. | 
 |   webrtc::RtpParameters new_params = channel_->GetRtpSendParameters(kSsrcX); | 
 |   EXPECT_EQ(initial_params, channel_->GetRtpSendParameters(kSsrcX)); | 
 | } | 
 |  | 
 | // Test that GetRtpReceiveParameters returns the currently configured codecs. | 
 | TEST_F(WebRtcVoiceEngineTestFake, GetRtpReceiveParametersCodecs) { | 
 |   EXPECT_TRUE(SetupRecvStream()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |  | 
 |   webrtc::RtpParameters rtp_parameters = | 
 |       channel_->GetRtpReceiveParameters(kSsrcX); | 
 |   ASSERT_EQ(2u, rtp_parameters.codecs.size()); | 
 |   EXPECT_EQ(kIsacCodec.ToCodecParameters(), rtp_parameters.codecs[0]); | 
 |   EXPECT_EQ(kPcmuCodec.ToCodecParameters(), rtp_parameters.codecs[1]); | 
 | } | 
 |  | 
 | // Test that GetRtpReceiveParameters returns an SSRC. | 
 | TEST_F(WebRtcVoiceEngineTestFake, GetRtpReceiveParametersSsrc) { | 
 |   EXPECT_TRUE(SetupRecvStream()); | 
 |   webrtc::RtpParameters rtp_parameters = | 
 |       channel_->GetRtpReceiveParameters(kSsrcX); | 
 |   ASSERT_EQ(1u, rtp_parameters.encodings.size()); | 
 |   EXPECT_EQ(kSsrcX, rtp_parameters.encodings[0].ssrc); | 
 | } | 
 |  | 
 | // Test that if we set/get parameters multiple times, we get the same results. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetAndGetRtpReceiveParameters) { | 
 |   EXPECT_TRUE(SetupRecvStream()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |  | 
 |   webrtc::RtpParameters initial_params = | 
 |       channel_->GetRtpReceiveParameters(kSsrcX); | 
 |  | 
 |   // We should be able to set the params we just got. | 
 |   EXPECT_TRUE(channel_->SetRtpReceiveParameters(kSsrcX, initial_params)); | 
 |  | 
 |   // ... And this shouldn't change the params returned by | 
 |   // GetRtpReceiveParameters. | 
 |   webrtc::RtpParameters new_params = channel_->GetRtpReceiveParameters(kSsrcX); | 
 |   EXPECT_EQ(initial_params, channel_->GetRtpReceiveParameters(kSsrcX)); | 
 | } | 
 |  | 
 | // Test that we apply codecs properly. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecs) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   parameters.codecs.push_back(kCn8000Codec); | 
 |   parameters.codecs[0].id = 96; | 
 |   parameters.codecs[0].bitrate = 48000; | 
 |   const int initial_num = call_.GetNumCreatedSendStreams(); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(initial_num + 1, call_.GetNumCreatedSendStreams()); | 
 |   const auto& send_codec_spec = GetSendStreamConfig(kSsrcX).send_codec_spec; | 
 |   EXPECT_EQ(96, send_codec_spec.codec_inst.pltype); | 
 |   EXPECT_EQ(48000, send_codec_spec.codec_inst.rate); | 
 |   EXPECT_STREQ("ISAC", send_codec_spec.codec_inst.plname); | 
 |   EXPECT_NE(send_codec_spec.codec_inst.plfreq, send_codec_spec.cng_plfreq); | 
 |   EXPECT_EQ(-1, send_codec_spec.cng_payload_type); | 
 |   EXPECT_FALSE(channel_->CanInsertDtmf()); | 
 | } | 
 |  | 
 | // Test that VoE Channel doesn't call SetSendCodec again if same codec is tried | 
 | // to apply. | 
 | TEST_F(WebRtcVoiceEngineTestFake, DontResetSetSendCodec) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   parameters.codecs.push_back(kCn8000Codec); | 
 |   parameters.codecs[0].id = 96; | 
 |   parameters.codecs[0].bitrate = 48000; | 
 |   const int initial_num = call_.GetNumCreatedSendStreams(); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(initial_num + 1, call_.GetNumCreatedSendStreams()); | 
 |   // Calling SetSendCodec again with same codec which is already set. | 
 |   // In this case media channel shouldn't send codec to VoE. | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(initial_num + 1, call_.GetNumCreatedSendStreams()); | 
 | } | 
 |  | 
 | // Verify that G722 is set with 16000 samples per second to WebRTC. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecG722) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kG722CodecSdp); | 
 |   SetSendParameters(parameters); | 
 |   const auto& gcodec = GetSendStreamConfig(kSsrcX).send_codec_spec.codec_inst; | 
 |   EXPECT_STREQ("G722", gcodec.plname); | 
 |   EXPECT_EQ(1, gcodec.channels); | 
 |   EXPECT_EQ(16000, gcodec.plfreq); | 
 | } | 
 |  | 
 | // Test that if clockrate is not 48000 for opus, we fail. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusBadClockrate) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].clockrate = 50000; | 
 |   EXPECT_FALSE(channel_->SetSendParameters(parameters)); | 
 | } | 
 |  | 
 | // Test that if channels=0 for opus, we fail. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusBad0ChannelsNoStereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].channels = 0; | 
 |   EXPECT_FALSE(channel_->SetSendParameters(parameters)); | 
 | } | 
 |  | 
 | // Test that if channels=0 for opus, we fail. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusBad0Channels1Stereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].channels = 0; | 
 |   parameters.codecs[0].params["stereo"] = "1"; | 
 |   EXPECT_FALSE(channel_->SetSendParameters(parameters)); | 
 | } | 
 |  | 
 | // Test that if channel is 1 for opus and there's no stereo, we fail. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpus1ChannelNoStereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].channels = 1; | 
 |   EXPECT_FALSE(channel_->SetSendParameters(parameters)); | 
 | } | 
 |  | 
 | // Test that if channel is 1 for opus and stereo=0, we fail. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusBad1Channel0Stereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].channels = 1; | 
 |   parameters.codecs[0].params["stereo"] = "0"; | 
 |   EXPECT_FALSE(channel_->SetSendParameters(parameters)); | 
 | } | 
 |  | 
 | // Test that if channel is 1 for opus and stereo=1, we fail. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusBad1Channel1Stereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].channels = 1; | 
 |   parameters.codecs[0].params["stereo"] = "1"; | 
 |   EXPECT_FALSE(channel_->SetSendParameters(parameters)); | 
 | } | 
 |  | 
 | // Test that with bitrate=0 and no stereo, | 
 | // channels and bitrate are 1 and 32000. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusGood0BitrateNoStereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   SetSendParameters(parameters); | 
 |   CheckSendCodec(kSsrcX, "opus", 1, 32000); | 
 | } | 
 |  | 
 | // Test that with bitrate=0 and stereo=0, | 
 | // channels and bitrate are 1 and 32000. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusGood0Bitrate0Stereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].params["stereo"] = "0"; | 
 |   SetSendParameters(parameters); | 
 |   CheckSendCodec(kSsrcX, "opus", 1, 32000); | 
 | } | 
 |  | 
 | // Test that with bitrate=invalid and stereo=0, | 
 | // channels and bitrate are 1 and 32000. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusGoodXBitrate0Stereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].params["stereo"] = "0"; | 
 |   // bitrate that's out of the range between 6000 and 510000 will be clamped. | 
 |   parameters.codecs[0].bitrate = 5999; | 
 |   SetSendParameters(parameters); | 
 |   CheckSendCodec(kSsrcX, "opus", 1, 6000); | 
 |  | 
 |   parameters.codecs[0].bitrate = 510001; | 
 |   SetSendParameters(parameters); | 
 |   CheckSendCodec(kSsrcX, "opus", 1, 510000); | 
 | } | 
 |  | 
 | // Test that with bitrate=0 and stereo=1, | 
 | // channels and bitrate are 2 and 64000. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusGood0Bitrate1Stereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].params["stereo"] = "1"; | 
 |   SetSendParameters(parameters); | 
 |   CheckSendCodec(kSsrcX, "opus", 2, 64000); | 
 | } | 
 |  | 
 | // Test that with bitrate=invalid and stereo=1, | 
 | // channels and bitrate are 2 and 64000. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusGoodXBitrate1Stereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].params["stereo"] = "1"; | 
 |   // bitrate that's out of the range between 6000 and 510000 will be clamped. | 
 |   parameters.codecs[0].bitrate = 5999; | 
 |   SetSendParameters(parameters); | 
 |   CheckSendCodec(kSsrcX, "opus", 2, 6000); | 
 |  | 
 |   parameters.codecs[0].bitrate = 510001; | 
 |   SetSendParameters(parameters); | 
 |   CheckSendCodec(kSsrcX, "opus", 2, 510000); | 
 | } | 
 |  | 
 | // Test that with bitrate=N and stereo unset, | 
 | // channels and bitrate are 1 and N. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusGoodNBitrateNoStereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 96000; | 
 |   SetSendParameters(parameters); | 
 |   const auto& gcodec = GetSendStreamConfig(kSsrcX).send_codec_spec.codec_inst; | 
 |   EXPECT_EQ(111, gcodec.pltype); | 
 |   EXPECT_EQ(96000, gcodec.rate); | 
 |   EXPECT_STREQ("opus", gcodec.plname); | 
 |   EXPECT_EQ(1, gcodec.channels); | 
 |   EXPECT_EQ(48000, gcodec.plfreq); | 
 | } | 
 |  | 
 | // Test that with bitrate=N and stereo=0, | 
 | // channels and bitrate are 1 and N. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusGoodNBitrate0Stereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 30000; | 
 |   parameters.codecs[0].params["stereo"] = "0"; | 
 |   SetSendParameters(parameters); | 
 |   CheckSendCodec(kSsrcX, "opus", 1, 30000); | 
 | } | 
 |  | 
 | // Test that with bitrate=N and without any parameters, | 
 | // channels and bitrate are 1 and N. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusGoodNBitrateNoParameters) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 30000; | 
 |   SetSendParameters(parameters); | 
 |   CheckSendCodec(kSsrcX, "opus", 1, 30000); | 
 | } | 
 |  | 
 | // Test that with bitrate=N and stereo=1, | 
 | // channels and bitrate are 2 and N. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusGoodNBitrate1Stereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 30000; | 
 |   parameters.codecs[0].params["stereo"] = "1"; | 
 |   SetSendParameters(parameters); | 
 |   CheckSendCodec(kSsrcX, "opus", 2, 30000); | 
 | } | 
 |  | 
 | // Test that bitrate will be overridden by the "maxaveragebitrate" parameter. | 
 | // Also test that the "maxaveragebitrate" can't be set to values outside the | 
 | // range of 6000 and 510000 | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusMaxAverageBitrate) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 30000; | 
 |   // Ignore if less than 6000. | 
 |   parameters.codecs[0].params["maxaveragebitrate"] = "5999"; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(6000, GetCodecBitrate(kSsrcX)); | 
 |  | 
 |   // Ignore if larger than 510000. | 
 |   parameters.codecs[0].params["maxaveragebitrate"] = "510001"; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(510000, GetCodecBitrate(kSsrcX)); | 
 |  | 
 |   parameters.codecs[0].params["maxaveragebitrate"] = "200000"; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(200000, GetCodecBitrate(kSsrcX)); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsWithBitrates) { | 
 |   SetSendCodecsShouldWorkForBitrates("100", 100000, "150", 150000, "200", | 
 |                                      200000); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsWithHighMaxBitrate) { | 
 |   SetSendCodecsShouldWorkForBitrates("", 0, "", -1, "10000", 10000000); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, | 
 |        SetSendCodecsWithoutBitratesUsesCorrectDefaults) { | 
 |   SetSendCodecsShouldWorkForBitrates("", 0, "", -1, "", -1); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsCapsMinAndStartBitrate) { | 
 |   SetSendCodecsShouldWorkForBitrates("-1", 0, "-100", -1, "", -1); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, | 
 |        SetMaxSendBandwidthShouldPreserveOtherBitrates) { | 
 |   SetSendCodecsShouldWorkForBitrates("100", 100000, "150", 150000, "200", | 
 |                                      200000); | 
 |   send_parameters_.max_bandwidth_bps = 300000; | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_EQ(100000, call_.GetConfig().bitrate_config.min_bitrate_bps) | 
 |       << "Setting max bitrate should keep previous min bitrate."; | 
 |   EXPECT_EQ(-1, call_.GetConfig().bitrate_config.start_bitrate_bps) | 
 |       << "Setting max bitrate should not reset start bitrate."; | 
 |   EXPECT_EQ(300000, call_.GetConfig().bitrate_config.max_bitrate_bps); | 
 | } | 
 |  | 
 | // Test that we can enable NACK with opus as caller. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecEnableNackAsCaller) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].AddFeedbackParam( | 
 |       cricket::FeedbackParam(cricket::kRtcpFbParamNack, | 
 |                              cricket::kParamValueEmpty)); | 
 |   EXPECT_EQ(0, GetSendStreamConfig(kSsrcX).rtp.nack.rtp_history_ms); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(kRtpHistoryMs, GetSendStreamConfig(kSsrcX).rtp.nack.rtp_history_ms); | 
 | } | 
 |  | 
 | // Test that we can enable NACK with opus as callee. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecEnableNackAsCallee) { | 
 |   EXPECT_TRUE(SetupRecvStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].AddFeedbackParam( | 
 |       cricket::FeedbackParam(cricket::kRtcpFbParamNack, | 
 |                              cricket::kParamValueEmpty)); | 
 |   EXPECT_EQ(0, GetRecvStreamConfig(kSsrcX).rtp.nack.rtp_history_ms); | 
 |   SetSendParameters(parameters); | 
 |   // NACK should be enabled even with no send stream. | 
 |   EXPECT_EQ(kRtpHistoryMs, GetRecvStreamConfig(kSsrcX).rtp.nack.rtp_history_ms); | 
 |  | 
 |   EXPECT_TRUE(channel_->AddSendStream( | 
 |       cricket::StreamParams::CreateLegacy(kSsrcX))); | 
 |   EXPECT_EQ(kRtpHistoryMs, GetSendStreamConfig(kSsrcX).rtp.nack.rtp_history_ms); | 
 | } | 
 |  | 
 | // Test that we can enable NACK on receive streams. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecEnableNackRecvStreams) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcY)); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].AddFeedbackParam( | 
 |       cricket::FeedbackParam(cricket::kRtcpFbParamNack, | 
 |                              cricket::kParamValueEmpty)); | 
 |   EXPECT_EQ(0, GetSendStreamConfig(kSsrcX).rtp.nack.rtp_history_ms); | 
 |   EXPECT_EQ(0, GetRecvStreamConfig(kSsrcY).rtp.nack.rtp_history_ms); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(kRtpHistoryMs, GetSendStreamConfig(kSsrcX).rtp.nack.rtp_history_ms); | 
 |   EXPECT_EQ(kRtpHistoryMs, GetRecvStreamConfig(kSsrcY).rtp.nack.rtp_history_ms); | 
 | } | 
 |  | 
 | // Test that we can disable NACK. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecDisableNack) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].AddFeedbackParam( | 
 |       cricket::FeedbackParam(cricket::kRtcpFbParamNack, | 
 |                              cricket::kParamValueEmpty)); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(kRtpHistoryMs, GetSendStreamConfig(kSsrcX).rtp.nack.rtp_history_ms); | 
 |  | 
 |   parameters.codecs.clear(); | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(0, GetSendStreamConfig(kSsrcX).rtp.nack.rtp_history_ms); | 
 | } | 
 |  | 
 | // Test that we can disable NACK on receive streams. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecDisableNackRecvStreams) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcY)); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].AddFeedbackParam( | 
 |       cricket::FeedbackParam(cricket::kRtcpFbParamNack, | 
 |                              cricket::kParamValueEmpty)); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(kRtpHistoryMs, GetSendStreamConfig(kSsrcX).rtp.nack.rtp_history_ms); | 
 |   EXPECT_EQ(kRtpHistoryMs, GetRecvStreamConfig(kSsrcY).rtp.nack.rtp_history_ms); | 
 |  | 
 |   parameters.codecs.clear(); | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(0, GetSendStreamConfig(kSsrcX).rtp.nack.rtp_history_ms); | 
 |   EXPECT_EQ(0, GetRecvStreamConfig(kSsrcY).rtp.nack.rtp_history_ms); | 
 | } | 
 |  | 
 | // Test that NACK is enabled on a new receive stream. | 
 | TEST_F(WebRtcVoiceEngineTestFake, AddRecvStreamEnableNack) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kCn16000Codec); | 
 |   parameters.codecs[0].AddFeedbackParam( | 
 |       cricket::FeedbackParam(cricket::kRtcpFbParamNack, | 
 |                              cricket::kParamValueEmpty)); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(kRtpHistoryMs, GetSendStreamConfig(kSsrcX).rtp.nack.rtp_history_ms); | 
 |  | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcY)); | 
 |   EXPECT_EQ(kRtpHistoryMs, GetRecvStreamConfig(kSsrcY).rtp.nack.rtp_history_ms); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcZ)); | 
 |   EXPECT_EQ(kRtpHistoryMs, GetRecvStreamConfig(kSsrcZ).rtp.nack.rtp_history_ms); | 
 | } | 
 |  | 
 | // Test that without useinbandfec, Opus FEC is off. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecNoOpusFec) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_FALSE(GetCodecFec(kSsrcX)); | 
 | } | 
 |  | 
 | // Test that with useinbandfec=0, Opus FEC is off. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusDisableFec) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].params["useinbandfec"] = "0"; | 
 |   SetSendParameters(parameters); | 
 |   CheckSendCodec(kSsrcX, "opus", 1, 32000); | 
 | } | 
 |  | 
 | // Test that with useinbandfec=1, Opus FEC is on. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusEnableFec) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].params["useinbandfec"] = "1"; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_TRUE(GetCodecFec(kSsrcX)); | 
 |   CheckSendCodec(kSsrcX, "opus", 1, 32000); | 
 | } | 
 |  | 
 | // Test that with useinbandfec=1, stereo=1, Opus FEC is on. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecOpusEnableFecStereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].params["stereo"] = "1"; | 
 |   parameters.codecs[0].params["useinbandfec"] = "1"; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_TRUE(GetCodecFec(kSsrcX)); | 
 |   CheckSendCodec(kSsrcX, "opus", 2, 64000); | 
 | } | 
 |  | 
 | // Test that with non-Opus, codec FEC is off. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecIsacNoFec) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_FALSE(GetCodecFec(kSsrcX)); | 
 | } | 
 |  | 
 | // Test the with non-Opus, even if useinbandfec=1, FEC is off. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecIsacWithParamNoFec) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs[0].params["useinbandfec"] = "1"; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_FALSE(GetCodecFec(kSsrcX)); | 
 | } | 
 |  | 
 | // Test that Opus FEC status can be changed. | 
 | TEST_F(WebRtcVoiceEngineTestFake, ChangeOpusFecStatus) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_FALSE(GetCodecFec(kSsrcX)); | 
 |  | 
 |   parameters.codecs[0].params["useinbandfec"] = "1"; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_TRUE(GetCodecFec(kSsrcX)); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, TransportCcCanBeEnabledAndDisabled) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   cricket::AudioSendParameters send_parameters; | 
 |   send_parameters.codecs.push_back(kOpusCodec); | 
 |   EXPECT_TRUE(send_parameters.codecs[0].feedback_params.params().empty()); | 
 |   SetSendParameters(send_parameters); | 
 |  | 
 |   cricket::AudioRecvParameters recv_parameters; | 
 |   recv_parameters.codecs.push_back(kIsacCodec); | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters)); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcX)); | 
 |   ASSERT_TRUE(call_.GetAudioReceiveStream(kSsrcX) != nullptr); | 
 |   EXPECT_FALSE( | 
 |       call_.GetAudioReceiveStream(kSsrcX)->GetConfig().rtp.transport_cc); | 
 |  | 
 |   send_parameters.codecs = engine_->send_codecs(); | 
 |   SetSendParameters(send_parameters); | 
 |   ASSERT_TRUE(call_.GetAudioReceiveStream(kSsrcX) != nullptr); | 
 |   EXPECT_TRUE( | 
 |       call_.GetAudioReceiveStream(kSsrcX)->GetConfig().rtp.transport_cc); | 
 | } | 
 |  | 
 | // Test maxplaybackrate <= 8000 triggers Opus narrow band mode. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetOpusMaxPlaybackRateNb) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamMaxPlaybackRate, 8000); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(8000, GetOpusMaxPlaybackRate(kSsrcX)); | 
 |   EXPECT_EQ(12000, GetCodecBitrate(kSsrcX)); | 
 |  | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamStereo, "1"); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(24000, GetCodecBitrate(kSsrcX)); | 
 | } | 
 |  | 
 | // Test 8000 < maxplaybackrate <= 12000 triggers Opus medium band mode. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetOpusMaxPlaybackRateMb) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamMaxPlaybackRate, 8001); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(8001, GetOpusMaxPlaybackRate(kSsrcX)); | 
 |   EXPECT_EQ(20000, GetCodecBitrate(kSsrcX)); | 
 |  | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamStereo, "1"); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(40000, GetCodecBitrate(kSsrcX)); | 
 | } | 
 |  | 
 | // Test 12000 < maxplaybackrate <= 16000 triggers Opus wide band mode. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetOpusMaxPlaybackRateWb) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamMaxPlaybackRate, 12001); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(12001, GetOpusMaxPlaybackRate(kSsrcX)); | 
 |   EXPECT_EQ(20000, GetCodecBitrate(kSsrcX)); | 
 |  | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamStereo, "1"); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(40000, GetCodecBitrate(kSsrcX)); | 
 | } | 
 |  | 
 | // Test 16000 < maxplaybackrate <= 24000 triggers Opus super wide band mode. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetOpusMaxPlaybackRateSwb) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamMaxPlaybackRate, 16001); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(16001, GetOpusMaxPlaybackRate(kSsrcX)); | 
 |   EXPECT_EQ(32000, GetCodecBitrate(kSsrcX)); | 
 |  | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamStereo, "1"); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(64000, GetCodecBitrate(kSsrcX)); | 
 | } | 
 |  | 
 | // Test 24000 < maxplaybackrate triggers Opus full band mode. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetOpusMaxPlaybackRateFb) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].bitrate = 0; | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamMaxPlaybackRate, 24001); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(24001, GetOpusMaxPlaybackRate(kSsrcX)); | 
 |   EXPECT_EQ(32000, GetCodecBitrate(kSsrcX)); | 
 |  | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamStereo, "1"); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(64000, GetCodecBitrate(kSsrcX)); | 
 | } | 
 |  | 
 | // Test Opus that without maxplaybackrate, default playback rate is used. | 
 | TEST_F(WebRtcVoiceEngineTestFake, DefaultOpusMaxPlaybackRate) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(48000, GetOpusMaxPlaybackRate(kSsrcX)); | 
 | } | 
 |  | 
 | // Test the with non-Opus, maxplaybackrate has no effect. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetNonOpusMaxPlaybackRate) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamMaxPlaybackRate, 32000); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(0, GetOpusMaxPlaybackRate(kSsrcX)); | 
 | } | 
 |  | 
 | // Test maxplaybackrate can be set on two streams. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetOpusMaxPlaybackRateOnTwoStreams) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(48000, GetOpusMaxPlaybackRate(kSsrcX)); | 
 |  | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamMaxPlaybackRate, 8000); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(8000, GetOpusMaxPlaybackRate(kSsrcX)); | 
 |  | 
 |   channel_->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrcY)); | 
 |   EXPECT_EQ(8000, GetOpusMaxPlaybackRate(kSsrcY)); | 
 | } | 
 |  | 
 | // Test that with usedtx=0, Opus DTX is off. | 
 | TEST_F(WebRtcVoiceEngineTestFake, DisableOpusDtxOnOpus) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].params["usedtx"] = "0"; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_FALSE(GetOpusDtx(kSsrcX)); | 
 | } | 
 |  | 
 | // Test that with usedtx=1, Opus DTX is on. | 
 | TEST_F(WebRtcVoiceEngineTestFake, EnableOpusDtxOnOpus) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].params["usedtx"] = "1"; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_TRUE(GetOpusDtx(kSsrcX)); | 
 | } | 
 |  | 
 | // Test that usedtx=1 works with stereo Opus. | 
 | TEST_F(WebRtcVoiceEngineTestFake, EnableOpusDtxOnOpusStereo) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].params["usedtx"] = "1"; | 
 |   parameters.codecs[0].params["stereo"] = "1"; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_TRUE(GetOpusDtx(kSsrcX)); | 
 | } | 
 |  | 
 | // Test that usedtx=1 does not work with non Opus. | 
 | TEST_F(WebRtcVoiceEngineTestFake, CannotEnableOpusDtxOnNonOpus) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs[0].params["usedtx"] = "1"; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_FALSE(GetOpusDtx(kSsrcX)); | 
 | } | 
 |  | 
 | // Test that we can switch back and forth between Opus and ISAC with CN. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsIsacOpusSwitching) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |  | 
 |   cricket::AudioSendParameters opus_parameters; | 
 |   opus_parameters.codecs.push_back(kOpusCodec); | 
 |   SetSendParameters(opus_parameters); | 
 |   { | 
 |     const auto& gcodec = GetSendStreamConfig(kSsrcX).send_codec_spec.codec_inst; | 
 |     EXPECT_EQ(111, gcodec.pltype); | 
 |     EXPECT_STREQ("opus", gcodec.plname); | 
 |   } | 
 |  | 
 |   cricket::AudioSendParameters isac_parameters; | 
 |   isac_parameters.codecs.push_back(kIsacCodec); | 
 |   isac_parameters.codecs.push_back(kCn16000Codec); | 
 |   isac_parameters.codecs.push_back(kOpusCodec); | 
 |   SetSendParameters(isac_parameters); | 
 |   { | 
 |     const auto& gcodec = GetSendStreamConfig(kSsrcX).send_codec_spec.codec_inst; | 
 |     EXPECT_EQ(103, gcodec.pltype); | 
 |     EXPECT_STREQ("ISAC", gcodec.plname); | 
 |   } | 
 |  | 
 |   SetSendParameters(opus_parameters); | 
 |   { | 
 |     const auto& gcodec = GetSendStreamConfig(kSsrcX).send_codec_spec.codec_inst; | 
 |     EXPECT_EQ(111, gcodec.pltype); | 
 |     EXPECT_STREQ("opus", gcodec.plname); | 
 |   } | 
 | } | 
 |  | 
 | // Test that we handle various ways of specifying bitrate. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsBitrate) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec);  // bitrate == 32000 | 
 |   SetSendParameters(parameters); | 
 |   { | 
 |     const auto& gcodec = GetSendStreamConfig(kSsrcX).send_codec_spec.codec_inst; | 
 |     EXPECT_EQ(103, gcodec.pltype); | 
 |     EXPECT_STREQ("ISAC", gcodec.plname); | 
 |     EXPECT_EQ(32000, gcodec.rate); | 
 |   } | 
 |  | 
 |   parameters.codecs[0].bitrate = 0;         // bitrate == default | 
 |   SetSendParameters(parameters); | 
 |   { | 
 |     const auto& gcodec = GetSendStreamConfig(kSsrcX).send_codec_spec.codec_inst; | 
 |     EXPECT_EQ(103, gcodec.pltype); | 
 |     EXPECT_STREQ("ISAC", gcodec.plname); | 
 |     EXPECT_EQ(32000, gcodec.rate); | 
 |   } | 
 |   parameters.codecs[0].bitrate = 28000;     // bitrate == 28000 | 
 |   SetSendParameters(parameters); | 
 |   { | 
 |     const auto& gcodec = GetSendStreamConfig(kSsrcX).send_codec_spec.codec_inst; | 
 |     EXPECT_EQ(103, gcodec.pltype); | 
 |     EXPECT_STREQ("ISAC", gcodec.plname); | 
 |     EXPECT_EQ(28000, gcodec.rate); | 
 |   } | 
 |  | 
 |   parameters.codecs[0] = kPcmuCodec;        // bitrate == 64000 | 
 |   SetSendParameters(parameters); | 
 |   { | 
 |     const auto& gcodec = GetSendStreamConfig(kSsrcX).send_codec_spec.codec_inst; | 
 |     EXPECT_EQ(0, gcodec.pltype); | 
 |     EXPECT_STREQ("PCMU", gcodec.plname); | 
 |     EXPECT_EQ(64000, gcodec.rate); | 
 |   } | 
 |  | 
 |   parameters.codecs[0].bitrate = 0;         // bitrate == default | 
 |   SetSendParameters(parameters); | 
 |   { | 
 |     const auto& gcodec = GetSendStreamConfig(kSsrcX).send_codec_spec.codec_inst; | 
 |     EXPECT_EQ(0, gcodec.pltype); | 
 |     EXPECT_STREQ("PCMU", gcodec.plname); | 
 |     EXPECT_EQ(64000, gcodec.rate); | 
 |   } | 
 |  | 
 |   parameters.codecs[0] = kOpusCodec; | 
 |   parameters.codecs[0].bitrate = 0;         // bitrate == default | 
 |   SetSendParameters(parameters); | 
 |   { | 
 |     const auto& gcodec = GetSendStreamConfig(kSsrcX).send_codec_spec.codec_inst; | 
 |     EXPECT_EQ(111, gcodec.pltype); | 
 |     EXPECT_STREQ("opus", gcodec.plname); | 
 |     EXPECT_EQ(32000, gcodec.rate); | 
 |   } | 
 | } | 
 |  | 
 | // Test that we could set packet size specified in kCodecParamPTime. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsPTimeAsPacketSize) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamPTime, 40); // Within range. | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(1920, GetCodecPacSize(kSsrcX));  // Opus gets 40ms. | 
 |  | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamPTime, 5); // Below range. | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(480, GetCodecPacSize(kSsrcX));  // Opus gets 10ms. | 
 |  | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamPTime, 80); // Beyond range. | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(2880, GetCodecPacSize(kSsrcX));  // Opus gets 60ms. | 
 |  | 
 |   parameters.codecs[0] = kIsacCodec;  // Also try Isac, with unsupported size. | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamPTime, 40); // Within range. | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(480, GetCodecPacSize( | 
 |                      kSsrcX));  // Isac gets 30ms as the next smallest value. | 
 |  | 
 |   parameters.codecs[0] = kG722CodecSdp;  // Try G722 @8kHz as negotiated in SDP. | 
 |   parameters.codecs[0].SetParam(cricket::kCodecParamPTime, 40); | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_EQ(640, GetCodecPacSize( | 
 |                      kSsrcX));  // G722 gets 40ms @16kHz as defined in VoE. | 
 | } | 
 |  | 
 | // Test that we fail if no codecs are specified. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsNoCodecs) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   EXPECT_FALSE(channel_->SetSendParameters(parameters)); | 
 | } | 
 |  | 
 | // Test that we can set send codecs even with telephone-event codec as the first | 
 | // one on the list. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsDTMFOnTop) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kTelephoneEventCodec1); | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   parameters.codecs[0].id = 98;  // DTMF | 
 |   parameters.codecs[1].id = 96; | 
 |   SetSendParameters(parameters); | 
 |   const auto& gcodec = GetSendStreamConfig(kSsrcX).send_codec_spec.codec_inst; | 
 |   EXPECT_EQ(96, gcodec.pltype); | 
 |   EXPECT_STREQ("ISAC", gcodec.plname); | 
 |   EXPECT_TRUE(channel_->CanInsertDtmf()); | 
 | } | 
 |  | 
 | // Test that payload type range is limited for telephone-event codec. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsDTMFPayloadTypeOutOfRange) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kTelephoneEventCodec2); | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs[0].id = 0;  // DTMF | 
 |   parameters.codecs[1].id = 96; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_TRUE(channel_->CanInsertDtmf()); | 
 |   parameters.codecs[0].id = 128;  // DTMF | 
 |   EXPECT_FALSE(channel_->SetSendParameters(parameters)); | 
 |   EXPECT_FALSE(channel_->CanInsertDtmf()); | 
 |   parameters.codecs[0].id = 127; | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_TRUE(channel_->CanInsertDtmf()); | 
 |   parameters.codecs[0].id = -1;  // DTMF | 
 |   EXPECT_FALSE(channel_->SetSendParameters(parameters)); | 
 |   EXPECT_FALSE(channel_->CanInsertDtmf()); | 
 | } | 
 |  | 
 | // Test that we can set send codecs even with CN codec as the first | 
 | // one on the list. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsCNOnTop) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kCn16000Codec); | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   parameters.codecs[0].id = 98;  // wideband CN | 
 |   parameters.codecs[1].id = 96; | 
 |   SetSendParameters(parameters); | 
 |   const auto& send_codec_spec = GetSendStreamConfig(kSsrcX).send_codec_spec; | 
 |   EXPECT_EQ(96, send_codec_spec.codec_inst.pltype); | 
 |   EXPECT_STREQ("ISAC", send_codec_spec.codec_inst.plname); | 
 |   EXPECT_EQ(98, send_codec_spec.cng_payload_type); | 
 |   EXPECT_EQ(webrtc::kFreq16000Hz, send_codec_spec.cng_plfreq); | 
 | } | 
 |  | 
 | // Test that we set VAD and DTMF types correctly as caller. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsCNandDTMFAsCaller) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   // TODO(juberti): cn 32000 | 
 |   parameters.codecs.push_back(kCn16000Codec); | 
 |   parameters.codecs.push_back(kCn8000Codec); | 
 |   parameters.codecs.push_back(kTelephoneEventCodec1); | 
 |   parameters.codecs[0].id = 96; | 
 |   parameters.codecs[2].id = 97;  // wideband CN | 
 |   parameters.codecs[4].id = 98;  // DTMF | 
 |   SetSendParameters(parameters); | 
 |   const auto& send_codec_spec = GetSendStreamConfig(kSsrcX).send_codec_spec; | 
 |   EXPECT_EQ(96, send_codec_spec.codec_inst.pltype); | 
 |   EXPECT_STREQ("ISAC", send_codec_spec.codec_inst.plname); | 
 |   EXPECT_EQ(1, send_codec_spec.codec_inst.channels); | 
 |   EXPECT_EQ(send_codec_spec.codec_inst.plfreq, send_codec_spec.cng_plfreq); | 
 |   EXPECT_EQ(97, send_codec_spec.cng_payload_type); | 
 |   EXPECT_EQ(webrtc::kFreq16000Hz, send_codec_spec.cng_plfreq); | 
 |   EXPECT_TRUE(channel_->CanInsertDtmf()); | 
 | } | 
 |  | 
 | // Test that we set VAD and DTMF types correctly as callee. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsCNandDTMFAsCallee) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   // TODO(juberti): cn 32000 | 
 |   parameters.codecs.push_back(kCn16000Codec); | 
 |   parameters.codecs.push_back(kCn8000Codec); | 
 |   parameters.codecs.push_back(kTelephoneEventCodec2); | 
 |   parameters.codecs[0].id = 96; | 
 |   parameters.codecs[2].id = 97;  // wideband CN | 
 |   parameters.codecs[4].id = 98;  // DTMF | 
 |   SetSendParameters(parameters); | 
 |   EXPECT_TRUE(channel_->AddSendStream( | 
 |       cricket::StreamParams::CreateLegacy(kSsrcX))); | 
 |  | 
 |   const auto& send_codec_spec = GetSendStreamConfig(kSsrcX).send_codec_spec; | 
 |   EXPECT_EQ(96, send_codec_spec.codec_inst.pltype); | 
 |   EXPECT_STREQ("ISAC", send_codec_spec.codec_inst.plname); | 
 |   EXPECT_EQ(1, send_codec_spec.codec_inst.channels); | 
 |   EXPECT_EQ(send_codec_spec.codec_inst.plfreq, send_codec_spec.cng_plfreq); | 
 |   EXPECT_EQ(97, send_codec_spec.cng_payload_type); | 
 |   EXPECT_EQ(webrtc::kFreq16000Hz, send_codec_spec.cng_plfreq); | 
 |   EXPECT_TRUE(channel_->CanInsertDtmf()); | 
 | } | 
 |  | 
 | // Test that we only apply VAD if we have a CN codec that matches the | 
 | // send codec clockrate. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsCNNoMatch) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   // Set ISAC(16K) and CN(16K). VAD should be activated. | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kCn16000Codec); | 
 |   parameters.codecs[1].id = 97; | 
 |   SetSendParameters(parameters); | 
 |   { | 
 |     const auto& send_codec_spec = GetSendStreamConfig(kSsrcX).send_codec_spec; | 
 |     EXPECT_STREQ("ISAC", send_codec_spec.codec_inst.plname); | 
 |     EXPECT_EQ(1, send_codec_spec.codec_inst.channels); | 
 |     EXPECT_EQ(send_codec_spec.codec_inst.plfreq, send_codec_spec.cng_plfreq); | 
 |     EXPECT_EQ(97, send_codec_spec.cng_payload_type); | 
 |     EXPECT_EQ(webrtc::kFreq16000Hz, send_codec_spec.cng_plfreq); | 
 |   } | 
 |   // Set PCMU(8K) and CN(16K). VAD should not be activated. | 
 |   parameters.codecs[0] = kPcmuCodec; | 
 |   SetSendParameters(parameters); | 
 |   { | 
 |     const auto& send_codec_spec = GetSendStreamConfig(kSsrcX).send_codec_spec; | 
 |     EXPECT_STREQ("PCMU", send_codec_spec.codec_inst.plname); | 
 |     EXPECT_NE(send_codec_spec.codec_inst.plfreq, send_codec_spec.cng_plfreq); | 
 |   } | 
 |   // Set PCMU(8K) and CN(8K). VAD should be activated. | 
 |   parameters.codecs[1] = kCn8000Codec; | 
 |   SetSendParameters(parameters); | 
 |   { | 
 |     const auto& send_codec_spec = GetSendStreamConfig(kSsrcX).send_codec_spec; | 
 |     EXPECT_STREQ("PCMU", send_codec_spec.codec_inst.plname); | 
 |     EXPECT_EQ(1, send_codec_spec.codec_inst.channels); | 
 |     EXPECT_EQ(send_codec_spec.codec_inst.plfreq, send_codec_spec.cng_plfreq); | 
 |     EXPECT_EQ(13, send_codec_spec.cng_payload_type); | 
 |     EXPECT_EQ(webrtc::kFreq8000Hz, send_codec_spec.cng_plfreq); | 
 |   } | 
 |   // Set ISAC(16K) and CN(8K). VAD should not be activated. | 
 |   parameters.codecs[0] = kIsacCodec; | 
 |   SetSendParameters(parameters); | 
 |   { | 
 |     const auto& send_codec_spec = GetSendStreamConfig(kSsrcX).send_codec_spec; | 
 |     EXPECT_STREQ("ISAC", send_codec_spec.codec_inst.plname); | 
 |     EXPECT_NE(send_codec_spec.codec_inst.plfreq, send_codec_spec.cng_plfreq); | 
 |   } | 
 | } | 
 |  | 
 | // Test that we perform case-insensitive matching of codec names. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsCaseInsensitive) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   parameters.codecs.push_back(kCn16000Codec); | 
 |   parameters.codecs.push_back(kCn8000Codec); | 
 |   parameters.codecs.push_back(kTelephoneEventCodec1); | 
 |   parameters.codecs[0].name = "iSaC"; | 
 |   parameters.codecs[0].id = 96; | 
 |   parameters.codecs[2].id = 97;  // wideband CN | 
 |   parameters.codecs[4].id = 98;  // DTMF | 
 |   SetSendParameters(parameters); | 
 |   const auto& send_codec_spec = GetSendStreamConfig(kSsrcX).send_codec_spec; | 
 |   EXPECT_EQ(96, send_codec_spec.codec_inst.pltype); | 
 |   EXPECT_STREQ("ISAC", send_codec_spec.codec_inst.plname); | 
 |   EXPECT_EQ(1, send_codec_spec.codec_inst.channels); | 
 |   EXPECT_EQ(send_codec_spec.codec_inst.plfreq, send_codec_spec.cng_plfreq); | 
 |   EXPECT_EQ(97, send_codec_spec.cng_payload_type); | 
 |   EXPECT_EQ(webrtc::kFreq16000Hz, send_codec_spec.cng_plfreq); | 
 |   EXPECT_TRUE(channel_->CanInsertDtmf()); | 
 | } | 
 |  | 
 | class WebRtcVoiceEngineWithSendSideBweTest : public WebRtcVoiceEngineTestFake { | 
 |  public: | 
 |   WebRtcVoiceEngineWithSendSideBweTest() | 
 |       : WebRtcVoiceEngineTestFake("WebRTC-Audio-SendSideBwe/Enabled/") {} | 
 | }; | 
 |  | 
 | TEST_F(WebRtcVoiceEngineWithSendSideBweTest, | 
 |        SupportsTransportSequenceNumberHeaderExtension) { | 
 |   cricket::RtpCapabilities capabilities = engine_->GetCapabilities(); | 
 |   ASSERT_FALSE(capabilities.header_extensions.empty()); | 
 |   for (const webrtc::RtpExtension& extension : capabilities.header_extensions) { | 
 |     if (extension.uri == webrtc::RtpExtension::kTransportSequenceNumberUri) { | 
 |       EXPECT_EQ(webrtc::RtpExtension::kTransportSequenceNumberDefaultId, | 
 |                 extension.id); | 
 |       return; | 
 |     } | 
 |   } | 
 |   FAIL() << "Transport sequence number extension not in header-extension list."; | 
 | } | 
 |  | 
 | // Test support for audio level header extension. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SendAudioLevelHeaderExtensions) { | 
 |   TestSetSendRtpHeaderExtensions(webrtc::RtpExtension::kAudioLevelUri); | 
 | } | 
 | TEST_F(WebRtcVoiceEngineTestFake, RecvAudioLevelHeaderExtensions) { | 
 |   TestSetRecvRtpHeaderExtensions(webrtc::RtpExtension::kAudioLevelUri); | 
 | } | 
 |  | 
 | // Test support for transport sequence number header extension. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SendTransportSequenceNumberHeaderExtensions) { | 
 |   TestSetSendRtpHeaderExtensions( | 
 |       webrtc::RtpExtension::kTransportSequenceNumberUri); | 
 | } | 
 | TEST_F(WebRtcVoiceEngineTestFake, RecvTransportSequenceNumberHeaderExtensions) { | 
 |   TestSetRecvRtpHeaderExtensions( | 
 |       webrtc::RtpExtension::kTransportSequenceNumberUri); | 
 | } | 
 |  | 
 | // Test that we can create a channel and start sending on it. | 
 | TEST_F(WebRtcVoiceEngineTestFake, Send) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   SetSendParameters(send_parameters_); | 
 |   SetSend(true); | 
 |   EXPECT_TRUE(GetSendStream(kSsrcX).IsSending()); | 
 |   SetSend(false); | 
 |   EXPECT_FALSE(GetSendStream(kSsrcX).IsSending()); | 
 | } | 
 |  | 
 | // Test that a channel will send if and only if it has a source and is enabled | 
 | // for sending. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SendStateWithAndWithoutSource) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   SetSendParameters(send_parameters_); | 
 |   SetAudioSend(kSsrcX, true, nullptr); | 
 |   SetSend(true); | 
 |   EXPECT_FALSE(GetSendStream(kSsrcX).IsSending()); | 
 |   SetAudioSend(kSsrcX, true, &fake_source_); | 
 |   EXPECT_TRUE(GetSendStream(kSsrcX).IsSending()); | 
 |   SetAudioSend(kSsrcX, true, nullptr); | 
 |   EXPECT_FALSE(GetSendStream(kSsrcX).IsSending()); | 
 | } | 
 |  | 
 | // Test that a channel is muted/unmuted. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SendStateMuteUnmute) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_FALSE(GetSendStream(kSsrcX).muted()); | 
 |   SetAudioSend(kSsrcX, true, nullptr); | 
 |   EXPECT_FALSE(GetSendStream(kSsrcX).muted()); | 
 |   SetAudioSend(kSsrcX, false, nullptr); | 
 |   EXPECT_TRUE(GetSendStream(kSsrcX).muted()); | 
 | } | 
 |  | 
 | // Test that SetSendParameters() does not alter a stream's send state. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SendStateWhenStreamsAreRecreated) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   EXPECT_FALSE(GetSendStream(kSsrcX).IsSending()); | 
 |  | 
 |   // Turn on sending. | 
 |   SetSend(true); | 
 |   EXPECT_TRUE(GetSendStream(kSsrcX).IsSending()); | 
 |  | 
 |   // Changing RTP header extensions will recreate the AudioSendStream. | 
 |   send_parameters_.extensions.push_back( | 
 |       webrtc::RtpExtension(webrtc::RtpExtension::kAudioLevelUri, 12)); | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_TRUE(GetSendStream(kSsrcX).IsSending()); | 
 |  | 
 |   // Turn off sending. | 
 |   SetSend(false); | 
 |   EXPECT_FALSE(GetSendStream(kSsrcX).IsSending()); | 
 |  | 
 |   // Changing RTP header extensions will recreate the AudioSendStream. | 
 |   send_parameters_.extensions.clear(); | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_FALSE(GetSendStream(kSsrcX).IsSending()); | 
 | } | 
 |  | 
 | // Test that we can create a channel and start playing out on it. | 
 | TEST_F(WebRtcVoiceEngineTestFake, Playout) { | 
 |   EXPECT_TRUE(SetupRecvStream()); | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_)); | 
 |   channel_->SetPlayout(true); | 
 |   EXPECT_TRUE(GetRecvStream(kSsrcX).started()); | 
 |   channel_->SetPlayout(false); | 
 |   EXPECT_FALSE(GetRecvStream(kSsrcX).started()); | 
 | } | 
 |  | 
 | // Test that we can add and remove send streams. | 
 | TEST_F(WebRtcVoiceEngineTestFake, CreateAndDeleteMultipleSendStreams) { | 
 |   SetupForMultiSendStream(); | 
 |  | 
 |   // Set the global state for sending. | 
 |   SetSend(true); | 
 |  | 
 |   for (uint32_t ssrc : kSsrcs4) { | 
 |     EXPECT_TRUE(channel_->AddSendStream( | 
 |         cricket::StreamParams::CreateLegacy(ssrc))); | 
 |     SetAudioSend(ssrc, true, &fake_source_); | 
 |     // Verify that we are in a sending state for all the created streams. | 
 |     EXPECT_TRUE(GetSendStream(ssrc).IsSending()); | 
 |   } | 
 |   EXPECT_EQ(arraysize(kSsrcs4), call_.GetAudioSendStreams().size()); | 
 |  | 
 |   // Delete the send streams. | 
 |   for (uint32_t ssrc : kSsrcs4) { | 
 |     EXPECT_TRUE(channel_->RemoveSendStream(ssrc)); | 
 |     EXPECT_FALSE(call_.GetAudioSendStream(ssrc)); | 
 |     EXPECT_FALSE(channel_->RemoveSendStream(ssrc)); | 
 |   } | 
 |   EXPECT_EQ(0u, call_.GetAudioSendStreams().size()); | 
 | } | 
 |  | 
 | // Test SetSendCodecs correctly configure the codecs in all send streams. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendCodecsWithMultipleSendStreams) { | 
 |   SetupForMultiSendStream(); | 
 |  | 
 |   // Create send streams. | 
 |   for (uint32_t ssrc : kSsrcs4) { | 
 |     EXPECT_TRUE(channel_->AddSendStream( | 
 |         cricket::StreamParams::CreateLegacy(ssrc))); | 
 |   } | 
 |  | 
 |   cricket::AudioSendParameters parameters; | 
 |   // Set ISAC(16K) and CN(16K). VAD should be activated. | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kCn16000Codec); | 
 |   parameters.codecs[1].id = 97; | 
 |   SetSendParameters(parameters); | 
 |  | 
 |   // Verify ISAC and VAD are corrected configured on all send channels. | 
 |   for (uint32_t ssrc : kSsrcs4) { | 
 |     ASSERT_TRUE(call_.GetAudioSendStream(ssrc) != nullptr); | 
 |     const auto& send_codec_spec = | 
 |         call_.GetAudioSendStream(ssrc)->GetConfig().send_codec_spec; | 
 |     EXPECT_STREQ("ISAC", send_codec_spec.codec_inst.plname); | 
 |     EXPECT_EQ(send_codec_spec.codec_inst.plfreq, send_codec_spec.cng_plfreq); | 
 |     EXPECT_EQ(1, send_codec_spec.codec_inst.channels); | 
 |     EXPECT_EQ(97, send_codec_spec.cng_payload_type); | 
 |     EXPECT_EQ(webrtc::kFreq16000Hz, send_codec_spec.cng_plfreq); | 
 |   } | 
 |  | 
 |   // Change to PCMU(8K) and CN(16K). | 
 |   parameters.codecs[0] = kPcmuCodec; | 
 |   SetSendParameters(parameters); | 
 |   for (uint32_t ssrc : kSsrcs4) { | 
 |     ASSERT_TRUE(call_.GetAudioSendStream(ssrc) != nullptr); | 
 |     const auto& send_codec_spec = | 
 |         call_.GetAudioSendStream(ssrc)->GetConfig().send_codec_spec; | 
 |     EXPECT_STREQ("PCMU", send_codec_spec.codec_inst.plname); | 
 |     EXPECT_EQ(-1, send_codec_spec.cng_payload_type); | 
 |   } | 
 | } | 
 |  | 
 | // Test we can SetSend on all send streams correctly. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendWithMultipleSendStreams) { | 
 |   SetupForMultiSendStream(); | 
 |  | 
 |   // Create the send channels and they should be a "not sending" date. | 
 |   for (uint32_t ssrc : kSsrcs4) { | 
 |     EXPECT_TRUE(channel_->AddSendStream( | 
 |         cricket::StreamParams::CreateLegacy(ssrc))); | 
 |     SetAudioSend(ssrc, true, &fake_source_); | 
 |     EXPECT_FALSE(GetSendStream(ssrc).IsSending()); | 
 |   } | 
 |  | 
 |   // Set the global state for starting sending. | 
 |   SetSend(true); | 
 |   for (uint32_t ssrc : kSsrcs4) { | 
 |     // Verify that we are in a sending state for all the send streams. | 
 |     EXPECT_TRUE(GetSendStream(ssrc).IsSending()); | 
 |   } | 
 |  | 
 |   // Set the global state for stopping sending. | 
 |   SetSend(false); | 
 |   for (uint32_t ssrc : kSsrcs4) { | 
 |     // Verify that we are in a stop state for all the send streams. | 
 |     EXPECT_FALSE(GetSendStream(ssrc).IsSending()); | 
 |   } | 
 | } | 
 |  | 
 | // Test we can set the correct statistics on all send streams. | 
 | TEST_F(WebRtcVoiceEngineTestFake, GetStatsWithMultipleSendStreams) { | 
 |   SetupForMultiSendStream(); | 
 |  | 
 |   // Create send streams. | 
 |   for (uint32_t ssrc : kSsrcs4) { | 
 |     EXPECT_TRUE(channel_->AddSendStream( | 
 |         cricket::StreamParams::CreateLegacy(ssrc))); | 
 |   } | 
 |  | 
 |   // Create a receive stream to check that none of the send streams end up in | 
 |   // the receive stream stats. | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcY)); | 
 |  | 
 |   // We need send codec to be set to get all stats. | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_)); | 
 |   SetAudioSendStreamStats(); | 
 |  | 
 |   // Check stats for the added streams. | 
 |   { | 
 |     cricket::VoiceMediaInfo info; | 
 |     EXPECT_EQ(true, channel_->GetStats(&info)); | 
 |  | 
 |     // We have added 4 send streams. We should see empty stats for all. | 
 |     EXPECT_EQ(static_cast<size_t>(arraysize(kSsrcs4)), info.senders.size()); | 
 |     for (const auto& sender : info.senders) { | 
 |       VerifyVoiceSenderInfo(sender, false); | 
 |     } | 
 |     VerifyVoiceSendRecvCodecs(info); | 
 |  | 
 |     // We have added one receive stream. We should see empty stats. | 
 |     EXPECT_EQ(info.receivers.size(), 1u); | 
 |     EXPECT_EQ(info.receivers[0].ssrc(), 0); | 
 |   } | 
 |  | 
 |   // Remove the kSsrcY stream. No receiver stats. | 
 |   { | 
 |     cricket::VoiceMediaInfo info; | 
 |     EXPECT_TRUE(channel_->RemoveRecvStream(kSsrcY)); | 
 |     EXPECT_EQ(true, channel_->GetStats(&info)); | 
 |     EXPECT_EQ(static_cast<size_t>(arraysize(kSsrcs4)), info.senders.size()); | 
 |     EXPECT_EQ(0u, info.receivers.size()); | 
 |   } | 
 |  | 
 |   // Deliver a new packet - a default receive stream should be created and we | 
 |   // should see stats again. | 
 |   { | 
 |     cricket::VoiceMediaInfo info; | 
 |     DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame)); | 
 |     SetAudioReceiveStreamStats(); | 
 |     EXPECT_EQ(true, channel_->GetStats(&info)); | 
 |     EXPECT_EQ(static_cast<size_t>(arraysize(kSsrcs4)), info.senders.size()); | 
 |     EXPECT_EQ(1u, info.receivers.size()); | 
 |     VerifyVoiceReceiverInfo(info.receivers[0]); | 
 |     VerifyVoiceSendRecvCodecs(info); | 
 |   } | 
 | } | 
 |  | 
 | // Test that we can add and remove receive streams, and do proper send/playout. | 
 | // We can receive on multiple streams while sending one stream. | 
 | TEST_F(WebRtcVoiceEngineTestFake, PlayoutWithMultipleStreams) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |  | 
 |   // Start playout without a receive stream. | 
 |   SetSendParameters(send_parameters_); | 
 |   channel_->SetPlayout(true); | 
 |  | 
 |   // Adding another stream should enable playout on the new stream only. | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcY)); | 
 |   SetSend(true); | 
 |   EXPECT_TRUE(GetSendStream(kSsrcX).IsSending()); | 
 |  | 
 |   // Make sure only the new stream is played out. | 
 |   EXPECT_TRUE(GetRecvStream(kSsrcY).started()); | 
 |  | 
 |   // Adding yet another stream should have stream 2 and 3 enabled for playout. | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcZ)); | 
 |   EXPECT_TRUE(GetRecvStream(kSsrcY).started()); | 
 |   EXPECT_TRUE(GetRecvStream(kSsrcZ).started()); | 
 |  | 
 |   // Stop sending. | 
 |   SetSend(false); | 
 |   EXPECT_FALSE(GetSendStream(kSsrcX).IsSending()); | 
 |  | 
 |   // Stop playout. | 
 |   channel_->SetPlayout(false); | 
 |   EXPECT_FALSE(GetRecvStream(kSsrcY).started()); | 
 |   EXPECT_FALSE(GetRecvStream(kSsrcZ).started()); | 
 |  | 
 |   // Restart playout and make sure recv streams are played out. | 
 |   channel_->SetPlayout(true); | 
 |   EXPECT_TRUE(GetRecvStream(kSsrcY).started()); | 
 |   EXPECT_TRUE(GetRecvStream(kSsrcZ).started()); | 
 |  | 
 |   // Now remove the recv streams. | 
 |   EXPECT_TRUE(channel_->RemoveRecvStream(kSsrcZ)); | 
 |   EXPECT_TRUE(channel_->RemoveRecvStream(kSsrcY)); | 
 | } | 
 |  | 
 | // Test that we can create a channel configured for Codian bridges, | 
 | // and start sending on it. | 
 | TEST_F(WebRtcVoiceEngineTestFake, CodianSend) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   send_parameters_.options.adjust_agc_delta = rtc::Optional<int>(-10); | 
 |   EXPECT_CALL(apm_gc_, | 
 |               set_target_level_dbfs(11)).Times(2).WillRepeatedly(Return(0)); | 
 |   SetSendParameters(send_parameters_); | 
 |   SetSend(true); | 
 |   EXPECT_TRUE(GetSendStream(kSsrcX).IsSending()); | 
 |   SetSend(false); | 
 |   EXPECT_FALSE(GetSendStream(kSsrcX).IsSending()); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, TxAgcConfigViaOptions) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   EXPECT_CALL(adm_, | 
 |               BuiltInAGCIsAvailable()).Times(2).WillRepeatedly(Return(false)); | 
 |   EXPECT_CALL(adm_, SetAGC(true)).Times(2).WillRepeatedly(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, Enable(true)).Times(2).WillOnce(Return(0)); | 
 |   send_parameters_.options.tx_agc_target_dbov = rtc::Optional<uint16_t>(3); | 
 |   send_parameters_.options.tx_agc_digital_compression_gain = | 
 |       rtc::Optional<uint16_t>(9); | 
 |   send_parameters_.options.tx_agc_limiter = rtc::Optional<bool>(true); | 
 |   send_parameters_.options.auto_gain_control = rtc::Optional<bool>(true); | 
 |   EXPECT_CALL(apm_gc_, set_target_level_dbfs(3)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, set_compression_gain_db(9)).WillRepeatedly(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, enable_limiter(true)).WillRepeatedly(Return(0)); | 
 |   SetSendParameters(send_parameters_); | 
 |  | 
 |   // Check interaction with adjust_agc_delta. Both should be respected, for | 
 |   // backwards compatibility. | 
 |   send_parameters_.options.adjust_agc_delta = rtc::Optional<int>(-10); | 
 |   EXPECT_CALL(apm_gc_, set_target_level_dbfs(13)).WillOnce(Return(0)); | 
 |   SetSendParameters(send_parameters_); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SampleRatesViaOptions) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   EXPECT_CALL(adm_, SetRecordingSampleRate(48000)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(adm_, SetPlayoutSampleRate(44100)).WillOnce(Return(0)); | 
 |   send_parameters_.options.recording_sample_rate = | 
 |       rtc::Optional<uint32_t>(48000); | 
 |   send_parameters_.options.playout_sample_rate = rtc::Optional<uint32_t>(44100); | 
 |   SetSendParameters(send_parameters_); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetAudioNetworkAdaptorViaOptions) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   send_parameters_.options.audio_network_adaptor = rtc::Optional<bool>(true); | 
 |   send_parameters_.options.audio_network_adaptor_config = | 
 |       rtc::Optional<std::string>("1234"); | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_EQ(send_parameters_.options.audio_network_adaptor_config, | 
 |             GetAudioNetworkAdaptorConfig(kSsrcX)); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, AudioSendResetAudioNetworkAdaptor) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   send_parameters_.options.audio_network_adaptor = rtc::Optional<bool>(true); | 
 |   send_parameters_.options.audio_network_adaptor_config = | 
 |       rtc::Optional<std::string>("1234"); | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_EQ(send_parameters_.options.audio_network_adaptor_config, | 
 |             GetAudioNetworkAdaptorConfig(kSsrcX)); | 
 |   const int initial_num = call_.GetNumCreatedSendStreams(); | 
 |   cricket::AudioOptions options; | 
 |   options.audio_network_adaptor = rtc::Optional<bool>(false); | 
 |   SetAudioSend(kSsrcX, true, nullptr, &options); | 
 |   // AudioSendStream expected to be recreated. | 
 |   EXPECT_EQ(initial_num + 1, call_.GetNumCreatedSendStreams()); | 
 |   EXPECT_EQ(rtc::Optional<std::string>(), GetAudioNetworkAdaptorConfig(kSsrcX)); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, AudioNetworkAdaptorNotGetOverridden) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   send_parameters_.options.audio_network_adaptor = rtc::Optional<bool>(true); | 
 |   send_parameters_.options.audio_network_adaptor_config = | 
 |       rtc::Optional<std::string>("1234"); | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_EQ(send_parameters_.options.audio_network_adaptor_config, | 
 |             GetAudioNetworkAdaptorConfig(kSsrcX)); | 
 |   const int initial_num = call_.GetNumCreatedSendStreams(); | 
 |   cricket::AudioOptions options; | 
 |   options.audio_network_adaptor = rtc::Optional<bool>(); | 
 |   // Unvalued |options.audio_network_adaptor|.should not reset audio network | 
 |   // adaptor. | 
 |   SetAudioSend(kSsrcX, true, nullptr, &options); | 
 |   // AudioSendStream not expected to be recreated. | 
 |   EXPECT_EQ(initial_num, call_.GetNumCreatedSendStreams()); | 
 |   EXPECT_EQ(send_parameters_.options.audio_network_adaptor_config, | 
 |             GetAudioNetworkAdaptorConfig(kSsrcX)); | 
 | } | 
 |  | 
 | class WebRtcVoiceEngineWithSendSideBweWithOverheadTest | 
 |     : public WebRtcVoiceEngineTestFake { | 
 |  public: | 
 |   WebRtcVoiceEngineWithSendSideBweWithOverheadTest() | 
 |       : WebRtcVoiceEngineTestFake( | 
 |             "WebRTC-Audio-SendSideBwe/Enabled/WebRTC-SendSideBwe-WithOverhead/" | 
 |             "Enabled/") {} | 
 | }; | 
 |  | 
 | TEST_F(WebRtcVoiceEngineWithSendSideBweWithOverheadTest, MinAndMaxBitrate) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioSendParameters parameters; | 
 |   parameters.codecs.push_back(kOpusCodec); | 
 |   SetSendParameters(parameters); | 
 |   const int initial_num = call_.GetNumCreatedSendStreams(); | 
 |   EXPECT_EQ(initial_num, call_.GetNumCreatedSendStreams()); | 
 |  | 
 |   // OverheadPerPacket = Ipv4(20B) + UDP(8B) + SRTP(10B) + RTP(12) | 
 |   constexpr int kOverheadPerPacket = 20 + 8 + 10 + 12; | 
 |   constexpr int kOpusMaxPtimeMs = WEBRTC_OPUS_SUPPORT_120MS_PTIME ? 120 : 60; | 
 |   constexpr int kMinOverheadBps = | 
 |       kOverheadPerPacket * 8 * 1000 / kOpusMaxPtimeMs; | 
 |   constexpr int kMaxOverheadBps = kOverheadPerPacket * 8 * 1000 / 10; | 
 |  | 
 |   constexpr int kOpusMinBitrateBps = 6000; | 
 |   EXPECT_EQ(kOpusMinBitrateBps + kMinOverheadBps, | 
 |             GetSendStreamConfig(kSsrcX).min_bitrate_bps); | 
 |   constexpr int kOpusBitrateFbBps = 32000; | 
 |   EXPECT_EQ(kOpusBitrateFbBps + kMaxOverheadBps, | 
 |             GetSendStreamConfig(kSsrcX).max_bitrate_bps); | 
 |  | 
 |   parameters.options.audio_network_adaptor = rtc::Optional<bool>(true); | 
 |   parameters.options.audio_network_adaptor_config = | 
 |       rtc::Optional<std::string>("1234"); | 
 |   SetSendParameters(parameters); | 
 |  | 
 |   constexpr int kMinOverheadWithAnaBps = | 
 |       kOverheadPerPacket * 8 * 1000 / kOpusMaxPtimeMs; | 
 |   constexpr int kMaxOverheadWithAnaBps = kOverheadPerPacket * 8 * 1000 / 20; | 
 |  | 
 |   EXPECT_EQ(kOpusMinBitrateBps + kMinOverheadWithAnaBps, | 
 |             GetSendStreamConfig(kSsrcX).min_bitrate_bps); | 
 |  | 
 |   EXPECT_EQ(kOpusBitrateFbBps + kMaxOverheadWithAnaBps, | 
 |             GetSendStreamConfig(kSsrcX).max_bitrate_bps); | 
 | } | 
 |  | 
 | // Test that we can set the outgoing SSRC properly. | 
 | // SSRC is set in SetupSendStream() by calling AddSendStream. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendSsrc) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   EXPECT_TRUE(call_.GetAudioSendStream(kSsrcX)); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, GetStats) { | 
 |   // Setup. We need send codec to be set to get all stats. | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   // SetupSendStream adds a send stream with kSsrcX, so the receive | 
 |   // stream has to use a different SSRC. | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcY)); | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_)); | 
 |   SetAudioSendStreamStats(); | 
 |  | 
 |   // Check stats for the added streams. | 
 |   { | 
 |     cricket::VoiceMediaInfo info; | 
 |     EXPECT_EQ(true, channel_->GetStats(&info)); | 
 |  | 
 |     // We have added one send stream. We should see the stats we've set. | 
 |     EXPECT_EQ(1u, info.senders.size()); | 
 |     VerifyVoiceSenderInfo(info.senders[0], false); | 
 |     // We have added one receive stream. We should see empty stats. | 
 |     EXPECT_EQ(info.receivers.size(), 1u); | 
 |     EXPECT_EQ(info.receivers[0].ssrc(), 0); | 
 |   } | 
 |  | 
 |   // Start sending - this affects some reported stats. | 
 |   { | 
 |     cricket::VoiceMediaInfo info; | 
 |     SetSend(true); | 
 |     EXPECT_EQ(true, channel_->GetStats(&info)); | 
 |     VerifyVoiceSenderInfo(info.senders[0], true); | 
 |     VerifyVoiceSendRecvCodecs(info); | 
 |   } | 
 |  | 
 |   // Remove the kSsrcY stream. No receiver stats. | 
 |   { | 
 |     cricket::VoiceMediaInfo info; | 
 |     EXPECT_TRUE(channel_->RemoveRecvStream(kSsrcY)); | 
 |     EXPECT_EQ(true, channel_->GetStats(&info)); | 
 |     EXPECT_EQ(1u, info.senders.size()); | 
 |     EXPECT_EQ(0u, info.receivers.size()); | 
 |   } | 
 |  | 
 |   // Deliver a new packet - a default receive stream should be created and we | 
 |   // should see stats again. | 
 |   { | 
 |     cricket::VoiceMediaInfo info; | 
 |     DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame)); | 
 |     SetAudioReceiveStreamStats(); | 
 |     EXPECT_EQ(true, channel_->GetStats(&info)); | 
 |     EXPECT_EQ(1u, info.senders.size()); | 
 |     EXPECT_EQ(1u, info.receivers.size()); | 
 |     VerifyVoiceReceiverInfo(info.receivers[0]); | 
 |     VerifyVoiceSendRecvCodecs(info); | 
 |   } | 
 | } | 
 |  | 
 | // Test that we can set the outgoing SSRC properly with multiple streams. | 
 | // SSRC is set in SetupSendStream() by calling AddSendStream. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendSsrcWithMultipleStreams) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   EXPECT_TRUE(call_.GetAudioSendStream(kSsrcX)); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcY)); | 
 |   EXPECT_EQ(kSsrcX, GetRecvStreamConfig(kSsrcY).rtp.local_ssrc); | 
 | } | 
 |  | 
 | // Test that the local SSRC is the same on sending and receiving channels if the | 
 | // receive channel is created before the send channel. | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetSendSsrcAfterCreatingReceiveChannel) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcY)); | 
 |   EXPECT_TRUE(channel_->AddSendStream( | 
 |       cricket::StreamParams::CreateLegacy(kSsrcX))); | 
 |   EXPECT_TRUE(call_.GetAudioSendStream(kSsrcX)); | 
 |   EXPECT_EQ(kSsrcX, GetRecvStreamConfig(kSsrcY).rtp.local_ssrc); | 
 | } | 
 |  | 
 | // Test that we can properly receive packets. | 
 | TEST_F(WebRtcVoiceEngineTestFake, Recv) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   EXPECT_TRUE(AddRecvStream(1)); | 
 |   DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame)); | 
 |  | 
 |   EXPECT_TRUE(GetRecvStream(1).VerifyLastPacket(kPcmuFrame, | 
 |                                                 sizeof(kPcmuFrame))); | 
 | } | 
 |  | 
 | // Test that we can properly receive packets on multiple streams. | 
 | TEST_F(WebRtcVoiceEngineTestFake, RecvWithMultipleStreams) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   const uint32_t ssrc1 = 1; | 
 |   const uint32_t ssrc2 = 2; | 
 |   const uint32_t ssrc3 = 3; | 
 |   EXPECT_TRUE(AddRecvStream(ssrc1)); | 
 |   EXPECT_TRUE(AddRecvStream(ssrc2)); | 
 |   EXPECT_TRUE(AddRecvStream(ssrc3)); | 
 |   // Create packets with the right SSRCs. | 
 |   unsigned char packets[4][sizeof(kPcmuFrame)]; | 
 |   for (size_t i = 0; i < arraysize(packets); ++i) { | 
 |     memcpy(packets[i], kPcmuFrame, sizeof(kPcmuFrame)); | 
 |     rtc::SetBE32(packets[i] + 8, static_cast<uint32_t>(i)); | 
 |   } | 
 |  | 
 |   const cricket::FakeAudioReceiveStream& s1 = GetRecvStream(ssrc1); | 
 |   const cricket::FakeAudioReceiveStream& s2 = GetRecvStream(ssrc2); | 
 |   const cricket::FakeAudioReceiveStream& s3 = GetRecvStream(ssrc3); | 
 |  | 
 |   EXPECT_EQ(s1.received_packets(), 0); | 
 |   EXPECT_EQ(s2.received_packets(), 0); | 
 |   EXPECT_EQ(s3.received_packets(), 0); | 
 |  | 
 |   DeliverPacket(packets[0], sizeof(packets[0])); | 
 |   EXPECT_EQ(s1.received_packets(), 0); | 
 |   EXPECT_EQ(s2.received_packets(), 0); | 
 |   EXPECT_EQ(s3.received_packets(), 0); | 
 |  | 
 |   DeliverPacket(packets[1], sizeof(packets[1])); | 
 |   EXPECT_EQ(s1.received_packets(), 1); | 
 |   EXPECT_TRUE(s1.VerifyLastPacket(packets[1], sizeof(packets[1]))); | 
 |   EXPECT_EQ(s2.received_packets(), 0); | 
 |   EXPECT_EQ(s3.received_packets(), 0); | 
 |  | 
 |   DeliverPacket(packets[2], sizeof(packets[2])); | 
 |   EXPECT_EQ(s1.received_packets(), 1); | 
 |   EXPECT_EQ(s2.received_packets(), 1); | 
 |   EXPECT_TRUE(s2.VerifyLastPacket(packets[2], sizeof(packets[2]))); | 
 |   EXPECT_EQ(s3.received_packets(), 0); | 
 |  | 
 |   DeliverPacket(packets[3], sizeof(packets[3])); | 
 |   EXPECT_EQ(s1.received_packets(), 1); | 
 |   EXPECT_EQ(s2.received_packets(), 1); | 
 |   EXPECT_EQ(s3.received_packets(), 1); | 
 |   EXPECT_TRUE(s3.VerifyLastPacket(packets[3], sizeof(packets[3]))); | 
 |  | 
 |   EXPECT_TRUE(channel_->RemoveRecvStream(ssrc3)); | 
 |   EXPECT_TRUE(channel_->RemoveRecvStream(ssrc2)); | 
 |   EXPECT_TRUE(channel_->RemoveRecvStream(ssrc1)); | 
 | } | 
 |  | 
 | // Test that receiving on an unsignaled stream works (a stream is created). | 
 | TEST_F(WebRtcVoiceEngineTestFake, RecvUnsignaled) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   EXPECT_EQ(0, call_.GetAudioReceiveStreams().size()); | 
 |  | 
 |   DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame)); | 
 |  | 
 |   EXPECT_EQ(1, call_.GetAudioReceiveStreams().size()); | 
 |   EXPECT_TRUE(GetRecvStream(kSsrc1).VerifyLastPacket(kPcmuFrame, | 
 |                                                      sizeof(kPcmuFrame))); | 
 | } | 
 |  | 
 | // Test that receiving N unsignaled stream works (streams will be created), and | 
 | // that packets are forwarded to them all. | 
 | TEST_F(WebRtcVoiceEngineTestFake, RecvMultipleUnsignaled) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   unsigned char packet[sizeof(kPcmuFrame)]; | 
 |   memcpy(packet, kPcmuFrame, sizeof(kPcmuFrame)); | 
 |  | 
 |   // Note that SSRC = 0 is not supported. | 
 |   for (uint32_t ssrc = 1; ssrc < (1 + kMaxUnsignaledRecvStreams); ++ssrc) { | 
 |     rtc::SetBE32(&packet[8], ssrc); | 
 |     DeliverPacket(packet, sizeof(packet)); | 
 |  | 
 |     // Verify we have one new stream for each loop iteration. | 
 |     EXPECT_EQ(ssrc, call_.GetAudioReceiveStreams().size()); | 
 |     EXPECT_EQ(1, GetRecvStream(ssrc).received_packets()); | 
 |     EXPECT_TRUE(GetRecvStream(ssrc).VerifyLastPacket(packet, sizeof(packet))); | 
 |   } | 
 |  | 
 |   // Sending on the same SSRCs again should not create new streams. | 
 |   for (uint32_t ssrc = 1; ssrc < (1 + kMaxUnsignaledRecvStreams); ++ssrc) { | 
 |     rtc::SetBE32(&packet[8], ssrc); | 
 |     DeliverPacket(packet, sizeof(packet)); | 
 |  | 
 |     EXPECT_EQ(kMaxUnsignaledRecvStreams, call_.GetAudioReceiveStreams().size()); | 
 |     EXPECT_EQ(2, GetRecvStream(ssrc).received_packets()); | 
 |     EXPECT_TRUE(GetRecvStream(ssrc).VerifyLastPacket(packet, sizeof(packet))); | 
 |   } | 
 |  | 
 |   // Send on another SSRC, the oldest unsignaled stream (SSRC=1) is replaced. | 
 |   constexpr uint32_t kAnotherSsrc = 667; | 
 |   rtc::SetBE32(&packet[8], kAnotherSsrc); | 
 |   DeliverPacket(packet, sizeof(packet)); | 
 |  | 
 |   const auto& streams = call_.GetAudioReceiveStreams(); | 
 |   EXPECT_EQ(kMaxUnsignaledRecvStreams, streams.size()); | 
 |   size_t i = 0; | 
 |   for (uint32_t ssrc = 2; ssrc < (1 + kMaxUnsignaledRecvStreams); ++ssrc, ++i) { | 
 |     EXPECT_EQ(ssrc, streams[i]->GetConfig().rtp.remote_ssrc); | 
 |     EXPECT_EQ(2, streams[i]->received_packets()); | 
 |   } | 
 |   EXPECT_EQ(kAnotherSsrc, streams[i]->GetConfig().rtp.remote_ssrc); | 
 |   EXPECT_EQ(1, streams[i]->received_packets()); | 
 |   // Sanity check that we've checked all streams. | 
 |   EXPECT_EQ(kMaxUnsignaledRecvStreams, (i + 1)); | 
 | } | 
 |  | 
 | // Test that a default channel is created even after a signaled stream has been | 
 | // added, and that this stream will get any packets for unknown SSRCs. | 
 | TEST_F(WebRtcVoiceEngineTestFake, RecvUnsignaledAfterSignaled) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   unsigned char packet[sizeof(kPcmuFrame)]; | 
 |   memcpy(packet, kPcmuFrame, sizeof(kPcmuFrame)); | 
 |  | 
 |   // Add a known stream, send packet and verify we got it. | 
 |   const uint32_t signaled_ssrc = 1; | 
 |   rtc::SetBE32(&packet[8], signaled_ssrc); | 
 |   EXPECT_TRUE(AddRecvStream(signaled_ssrc)); | 
 |   DeliverPacket(packet, sizeof(packet)); | 
 |   EXPECT_TRUE(GetRecvStream(signaled_ssrc).VerifyLastPacket( | 
 |       packet, sizeof(packet))); | 
 |   EXPECT_EQ(1, call_.GetAudioReceiveStreams().size()); | 
 |  | 
 |   // Note that the first unknown SSRC cannot be 0, because we only support | 
 |   // creating receive streams for SSRC!=0. | 
 |   const uint32_t unsignaled_ssrc = 7011; | 
 |   rtc::SetBE32(&packet[8], unsignaled_ssrc); | 
 |   DeliverPacket(packet, sizeof(packet)); | 
 |   EXPECT_TRUE(GetRecvStream(unsignaled_ssrc).VerifyLastPacket( | 
 |       packet, sizeof(packet))); | 
 |   EXPECT_EQ(2, call_.GetAudioReceiveStreams().size()); | 
 |  | 
 |   DeliverPacket(packet, sizeof(packet)); | 
 |   EXPECT_EQ(2, GetRecvStream(unsignaled_ssrc).received_packets()); | 
 |  | 
 |   rtc::SetBE32(&packet[8], signaled_ssrc); | 
 |   DeliverPacket(packet, sizeof(packet)); | 
 |   EXPECT_EQ(2, GetRecvStream(signaled_ssrc).received_packets()); | 
 |   EXPECT_EQ(2, call_.GetAudioReceiveStreams().size()); | 
 | } | 
 |  | 
 | // Two tests to verify that adding a receive stream with the same SSRC as a | 
 | // previously added unsignaled stream will only recreate underlying stream | 
 | // objects if the stream parameters have changed. | 
 | TEST_F(WebRtcVoiceEngineTestFake, AddRecvStreamAfterUnsignaled_NoRecreate) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |  | 
 |   // Spawn unsignaled stream with SSRC=1. | 
 |   DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame)); | 
 |   EXPECT_EQ(1, call_.GetAudioReceiveStreams().size()); | 
 |   EXPECT_TRUE(GetRecvStream(1).VerifyLastPacket(kPcmuFrame, | 
 |                                                 sizeof(kPcmuFrame))); | 
 |  | 
 |   // Verify that the underlying stream object in Call is not recreated when a | 
 |   // stream with SSRC=1 is added. | 
 |   const auto& streams = call_.GetAudioReceiveStreams(); | 
 |   EXPECT_EQ(1, streams.size()); | 
 |   int audio_receive_stream_id = streams.front()->id(); | 
 |   EXPECT_TRUE(AddRecvStream(1)); | 
 |   EXPECT_EQ(1, streams.size()); | 
 |   EXPECT_EQ(audio_receive_stream_id, streams.front()->id()); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, AddRecvStreamAfterUnsignaled_Recreate) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |  | 
 |   // Spawn unsignaled stream with SSRC=1. | 
 |   DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame)); | 
 |   EXPECT_EQ(1, call_.GetAudioReceiveStreams().size()); | 
 |   EXPECT_TRUE(GetRecvStream(1).VerifyLastPacket(kPcmuFrame, | 
 |                                                 sizeof(kPcmuFrame))); | 
 |  | 
 |   // Verify that the underlying stream object in Call *is* recreated when a | 
 |   // stream with SSRC=1 is added, and which has changed stream parameters. | 
 |   const auto& streams = call_.GetAudioReceiveStreams(); | 
 |   EXPECT_EQ(1, streams.size()); | 
 |   int audio_receive_stream_id = streams.front()->id(); | 
 |   cricket::StreamParams stream_params; | 
 |   stream_params.ssrcs.push_back(1); | 
 |   stream_params.sync_label = "sync_label"; | 
 |   EXPECT_TRUE(channel_->AddRecvStream(stream_params)); | 
 |   EXPECT_EQ(1, streams.size()); | 
 |   EXPECT_NE(audio_receive_stream_id, streams.front()->id()); | 
 | } | 
 |  | 
 | // Test that we properly handle failures to add a receive stream. | 
 | TEST_F(WebRtcVoiceEngineTestFake, AddRecvStreamFail) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   voe_.set_fail_create_channel(true); | 
 |   EXPECT_FALSE(AddRecvStream(2)); | 
 | } | 
 |  | 
 | // Test that we properly handle failures to add a send stream. | 
 | TEST_F(WebRtcVoiceEngineTestFake, AddSendStreamFail) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   voe_.set_fail_create_channel(true); | 
 |   EXPECT_FALSE(channel_->AddSendStream(cricket::StreamParams::CreateLegacy(2))); | 
 | } | 
 |  | 
 | // Test that AddRecvStream creates new stream. | 
 | TEST_F(WebRtcVoiceEngineTestFake, AddRecvStream) { | 
 |   EXPECT_TRUE(SetupRecvStream()); | 
 |   int channel_num = voe_.GetLastChannel(); | 
 |   EXPECT_TRUE(AddRecvStream(1)); | 
 |   EXPECT_NE(channel_num, voe_.GetLastChannel()); | 
 | } | 
 |  | 
 | // Test that after adding a recv stream, we do not decode more codecs than | 
 | // those previously passed into SetRecvCodecs. | 
 | TEST_F(WebRtcVoiceEngineTestFake, AddRecvStreamUnsupportedCodec) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs.push_back(kIsacCodec); | 
 |   parameters.codecs.push_back(kPcmuCodec); | 
 |   EXPECT_TRUE(channel_->SetRecvParameters(parameters)); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcX)); | 
 |   EXPECT_THAT(GetRecvStreamConfig(kSsrcX).decoder_map, | 
 |               (ContainerEq<std::map<int, webrtc::SdpAudioFormat>>( | 
 |                   {{0, {"PCMU", 8000, 1}}, {103, {"ISAC", 16000, 1}}}))); | 
 | } | 
 |  | 
 | // Test that we properly clean up any streams that were added, even if | 
 | // not explicitly removed. | 
 | TEST_F(WebRtcVoiceEngineTestFake, StreamCleanup) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_TRUE(AddRecvStream(1)); | 
 |   EXPECT_TRUE(AddRecvStream(2)); | 
 |   EXPECT_EQ(3, voe_.GetNumChannels());  // default channel + 2 added | 
 |   delete channel_; | 
 |   channel_ = NULL; | 
 |   EXPECT_EQ(0, voe_.GetNumChannels()); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, TestAddRecvStreamFailWithZeroSsrc) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   EXPECT_FALSE(AddRecvStream(0)); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, TestNoLeakingWhenAddRecvStreamFail) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   EXPECT_TRUE(AddRecvStream(1)); | 
 |   // Manually delete channel to simulate a failure. | 
 |   int channel = voe_.GetLastChannel(); | 
 |   EXPECT_EQ(0, voe_.DeleteChannel(channel)); | 
 |   // Add recv stream 2 should work. | 
 |   EXPECT_TRUE(AddRecvStream(2)); | 
 |   int new_channel = voe_.GetLastChannel(); | 
 |   EXPECT_NE(channel, new_channel); | 
 |   // The last created channel is deleted too. | 
 |   EXPECT_EQ(0, voe_.DeleteChannel(new_channel)); | 
 | } | 
 |  | 
 | // Test the InsertDtmf on default send stream as caller. | 
 | TEST_F(WebRtcVoiceEngineTestFake, InsertDtmfOnDefaultSendStreamAsCaller) { | 
 |   TestInsertDtmf(0, true, kTelephoneEventCodec1); | 
 | } | 
 |  | 
 | // Test the InsertDtmf on default send stream as callee | 
 | TEST_F(WebRtcVoiceEngineTestFake, InsertDtmfOnDefaultSendStreamAsCallee) { | 
 |   TestInsertDtmf(0, false, kTelephoneEventCodec2); | 
 | } | 
 |  | 
 | // Test the InsertDtmf on specified send stream as caller. | 
 | TEST_F(WebRtcVoiceEngineTestFake, InsertDtmfOnSendStreamAsCaller) { | 
 |   TestInsertDtmf(kSsrcX, true, kTelephoneEventCodec2); | 
 | } | 
 |  | 
 | // Test the InsertDtmf on specified send stream as callee. | 
 | TEST_F(WebRtcVoiceEngineTestFake, InsertDtmfOnSendStreamAsCallee) { | 
 |   TestInsertDtmf(kSsrcX, false, kTelephoneEventCodec1); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetAudioOptions) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   EXPECT_CALL(adm_, | 
 |               BuiltInAECIsAvailable()).Times(9).WillRepeatedly(Return(false)); | 
 |   EXPECT_CALL(adm_, | 
 |               BuiltInAGCIsAvailable()).Times(4).WillRepeatedly(Return(false)); | 
 |   EXPECT_CALL(adm_, | 
 |               BuiltInNSIsAvailable()).Times(2).WillRepeatedly(Return(false)); | 
 |  | 
 |   EXPECT_EQ(50, voe_.GetNetEqCapacity()); | 
 |   EXPECT_FALSE(voe_.GetNetEqFastAccelerate()); | 
 |  | 
 |   // Nothing set in AudioOptions, so everything should be as default. | 
 |   send_parameters_.options = cricket::AudioOptions(); | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_TRUE(IsHighPassFilterEnabled()); | 
 |   EXPECT_EQ(50, voe_.GetNetEqCapacity()); | 
 |   EXPECT_FALSE(voe_.GetNetEqFastAccelerate()); | 
 |  | 
 |   // Turn echo cancellation off | 
 |   EXPECT_CALL(apm_ec_, Enable(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(false)).WillOnce(Return(0)); | 
 |   send_parameters_.options.echo_cancellation = rtc::Optional<bool>(false); | 
 |   SetSendParameters(send_parameters_); | 
 |  | 
 |   // Turn echo cancellation back on, with settings, and make sure | 
 |   // nothing else changed. | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   send_parameters_.options.echo_cancellation = rtc::Optional<bool>(true); | 
 |   SetSendParameters(send_parameters_); | 
 |  | 
 |   // Turn on delay agnostic aec and make sure nothing change w.r.t. echo | 
 |   // control. | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   send_parameters_.options.delay_agnostic_aec = rtc::Optional<bool>(true); | 
 |   SetSendParameters(send_parameters_); | 
 |  | 
 |   // Turn off echo cancellation and delay agnostic aec. | 
 |   EXPECT_CALL(apm_ec_, Enable(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(false)).WillOnce(Return(0)); | 
 |   send_parameters_.options.delay_agnostic_aec = rtc::Optional<bool>(false); | 
 |   send_parameters_.options.extended_filter_aec = rtc::Optional<bool>(false); | 
 |   send_parameters_.options.echo_cancellation = rtc::Optional<bool>(false); | 
 |   SetSendParameters(send_parameters_); | 
 |  | 
 |   // Turning delay agnostic aec back on should also turn on echo cancellation. | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   send_parameters_.options.delay_agnostic_aec = rtc::Optional<bool>(true); | 
 |   SetSendParameters(send_parameters_); | 
 |  | 
 |   // Turn off AGC | 
 |   EXPECT_CALL(adm_, SetAGC(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, Enable(false)).WillOnce(Return(0)); | 
 |   send_parameters_.options.auto_gain_control = rtc::Optional<bool>(false); | 
 |   SetSendParameters(send_parameters_); | 
 |  | 
 |   // Turn AGC back on | 
 |   EXPECT_CALL(adm_, SetAGC(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, Enable(true)).WillOnce(Return(0)); | 
 |   send_parameters_.options.auto_gain_control = rtc::Optional<bool>(true); | 
 |   send_parameters_.options.adjust_agc_delta = rtc::Optional<int>(); | 
 |   SetSendParameters(send_parameters_); | 
 |  | 
 |   // Turn off other options (and stereo swapping on). | 
 |   EXPECT_CALL(adm_, SetAGC(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ns_, Enable(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_vd_, Enable(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(transmit_mixer_, EnableStereoChannelSwapping(true)); | 
 |   send_parameters_.options.noise_suppression = rtc::Optional<bool>(false); | 
 |   send_parameters_.options.highpass_filter = rtc::Optional<bool>(false); | 
 |   send_parameters_.options.typing_detection = rtc::Optional<bool>(false); | 
 |   send_parameters_.options.stereo_swapping = rtc::Optional<bool>(true); | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_FALSE(IsHighPassFilterEnabled()); | 
 |  | 
 |   // Set options again to ensure it has no impact. | 
 |   EXPECT_CALL(adm_, SetAGC(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ns_, Enable(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_vd_, Enable(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(transmit_mixer_, EnableStereoChannelSwapping(true)); | 
 |   SetSendParameters(send_parameters_); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetOptionOverridesViaChannels) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   EXPECT_CALL(adm_, | 
 |               BuiltInAECIsAvailable()).Times(8).WillRepeatedly(Return(false)); | 
 |   EXPECT_CALL(adm_, | 
 |               BuiltInAGCIsAvailable()).Times(8).WillRepeatedly(Return(false)); | 
 |   EXPECT_CALL(adm_, | 
 |               BuiltInNSIsAvailable()).Times(8).WillRepeatedly(Return(false)); | 
 |   EXPECT_CALL(adm_, | 
 |               RecordingIsInitialized()).Times(2).WillRepeatedly(Return(false)); | 
 |   EXPECT_CALL(adm_, Recording()).Times(2).WillRepeatedly(Return(false)); | 
 |   EXPECT_CALL(adm_, InitRecording()).Times(2).WillRepeatedly(Return(0)); | 
 |   EXPECT_CALL(apm_, ApplyConfig(testing::_)).Times(10); | 
 |   EXPECT_CALL(apm_, SetExtraOptions(testing::_)).Times(10); | 
 |  | 
 |   std::unique_ptr<cricket::WebRtcVoiceMediaChannel> channel1( | 
 |       static_cast<cricket::WebRtcVoiceMediaChannel*>(engine_->CreateChannel( | 
 |           &call_, cricket::MediaConfig(), cricket::AudioOptions()))); | 
 |   std::unique_ptr<cricket::WebRtcVoiceMediaChannel> channel2( | 
 |       static_cast<cricket::WebRtcVoiceMediaChannel*>(engine_->CreateChannel( | 
 |           &call_, cricket::MediaConfig(), cricket::AudioOptions()))); | 
 |  | 
 |   // Have to add a stream to make SetSend work. | 
 |   cricket::StreamParams stream1; | 
 |   stream1.ssrcs.push_back(1); | 
 |   channel1->AddSendStream(stream1); | 
 |   cricket::StreamParams stream2; | 
 |   stream2.ssrcs.push_back(2); | 
 |   channel2->AddSendStream(stream2); | 
 |  | 
 |   // AEC and AGC and NS | 
 |   cricket::AudioSendParameters parameters_options_all = send_parameters_; | 
 |   parameters_options_all.options.echo_cancellation = rtc::Optional<bool>(true); | 
 |   parameters_options_all.options.auto_gain_control = rtc::Optional<bool>(true); | 
 |   parameters_options_all.options.noise_suppression = rtc::Optional<bool>(true); | 
 |   EXPECT_CALL(adm_, SetAGC(true)).Times(2).WillRepeatedly(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).Times(2).WillRepeatedly(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).Times(2).WillRepeatedly(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, Enable(true)).Times(2).WillRepeatedly(Return(0)); | 
 |   EXPECT_CALL(apm_ns_, Enable(true)).Times(2).WillRepeatedly(Return(0)); | 
 |   EXPECT_TRUE(channel1->SetSendParameters(parameters_options_all)); | 
 |   EXPECT_EQ(parameters_options_all.options, channel1->options()); | 
 |   EXPECT_TRUE(channel2->SetSendParameters(parameters_options_all)); | 
 |   EXPECT_EQ(parameters_options_all.options, channel2->options()); | 
 |  | 
 |   // unset NS | 
 |   cricket::AudioSendParameters parameters_options_no_ns = send_parameters_; | 
 |   parameters_options_no_ns.options.noise_suppression = | 
 |       rtc::Optional<bool>(false); | 
 |   EXPECT_CALL(adm_, SetAGC(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ns_, Enable(false)).WillOnce(Return(0)); | 
 |   EXPECT_TRUE(channel1->SetSendParameters(parameters_options_no_ns)); | 
 |   cricket::AudioOptions expected_options = parameters_options_all.options; | 
 |   expected_options.echo_cancellation = rtc::Optional<bool>(true); | 
 |   expected_options.auto_gain_control = rtc::Optional<bool>(true); | 
 |   expected_options.noise_suppression = rtc::Optional<bool>(false); | 
 |   EXPECT_EQ(expected_options, channel1->options()); | 
 |  | 
 |   // unset AGC | 
 |   cricket::AudioSendParameters parameters_options_no_agc = send_parameters_; | 
 |   parameters_options_no_agc.options.auto_gain_control = | 
 |       rtc::Optional<bool>(false); | 
 |   EXPECT_CALL(adm_, SetAGC(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, Enable(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ns_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_TRUE(channel2->SetSendParameters(parameters_options_no_agc)); | 
 |   expected_options.echo_cancellation = rtc::Optional<bool>(true); | 
 |   expected_options.auto_gain_control = rtc::Optional<bool>(false); | 
 |   expected_options.noise_suppression = rtc::Optional<bool>(true); | 
 |   EXPECT_EQ(expected_options, channel2->options()); | 
 |  | 
 |   EXPECT_CALL(adm_, SetAGC(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ns_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_TRUE(channel_->SetSendParameters(parameters_options_all)); | 
 |  | 
 |   EXPECT_CALL(adm_, SetAGC(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ns_, Enable(false)).WillOnce(Return(0)); | 
 |   channel1->SetSend(true); | 
 |  | 
 |   EXPECT_CALL(adm_, SetAGC(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, Enable(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ns_, Enable(true)).WillOnce(Return(0)); | 
 |   channel2->SetSend(true); | 
 |  | 
 |   // Make sure settings take effect while we are sending. | 
 |   cricket::AudioSendParameters parameters_options_no_agc_nor_ns = | 
 |       send_parameters_; | 
 |   parameters_options_no_agc_nor_ns.options.auto_gain_control = | 
 |       rtc::Optional<bool>(false); | 
 |   parameters_options_no_agc_nor_ns.options.noise_suppression = | 
 |       rtc::Optional<bool>(false); | 
 |   EXPECT_CALL(adm_, SetAGC(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, Enable(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ec_, enable_metrics(true)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_gc_, Enable(false)).WillOnce(Return(0)); | 
 |   EXPECT_CALL(apm_ns_, Enable(false)).WillOnce(Return(0)); | 
 |   EXPECT_TRUE(channel2->SetSendParameters(parameters_options_no_agc_nor_ns)); | 
 |   expected_options.echo_cancellation = rtc::Optional<bool>(true); | 
 |   expected_options.auto_gain_control = rtc::Optional<bool>(false); | 
 |   expected_options.noise_suppression = rtc::Optional<bool>(false); | 
 |   EXPECT_EQ(expected_options, channel2->options()); | 
 | } | 
 |  | 
 | // This test verifies DSCP settings are properly applied on voice media channel. | 
 | TEST_F(WebRtcVoiceEngineTestFake, TestSetDscpOptions) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::FakeNetworkInterface network_interface; | 
 |   cricket::MediaConfig config; | 
 |   std::unique_ptr<cricket::VoiceMediaChannel> channel; | 
 |  | 
 |   EXPECT_CALL(apm_, ApplyConfig(testing::_)).Times(3); | 
 |   EXPECT_CALL(apm_, SetExtraOptions(testing::_)).Times(3); | 
 |  | 
 |   channel.reset( | 
 |       engine_->CreateChannel(&call_, config, cricket::AudioOptions())); | 
 |   channel->SetInterface(&network_interface); | 
 |   // Default value when DSCP is disabled should be DSCP_DEFAULT. | 
 |   EXPECT_EQ(rtc::DSCP_DEFAULT, network_interface.dscp()); | 
 |  | 
 |   config.enable_dscp = true; | 
 |   channel.reset( | 
 |       engine_->CreateChannel(&call_, config, cricket::AudioOptions())); | 
 |   channel->SetInterface(&network_interface); | 
 |   EXPECT_EQ(rtc::DSCP_EF, network_interface.dscp()); | 
 |  | 
 |   // Verify that setting the option to false resets the | 
 |   // DiffServCodePoint. | 
 |   config.enable_dscp = false; | 
 |   channel.reset( | 
 |       engine_->CreateChannel(&call_, config, cricket::AudioOptions())); | 
 |   channel->SetInterface(&network_interface); | 
 |   // Default value when DSCP is disabled should be DSCP_DEFAULT. | 
 |   EXPECT_EQ(rtc::DSCP_DEFAULT, network_interface.dscp()); | 
 |  | 
 |   channel->SetInterface(nullptr); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, TestGetReceiveChannelId) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   cricket::WebRtcVoiceMediaChannel* media_channel = | 
 |         static_cast<cricket::WebRtcVoiceMediaChannel*>(channel_); | 
 |   EXPECT_EQ(-1, media_channel->GetReceiveChannelId(0)); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcX)); | 
 |   int channel_id = voe_.GetLastChannel(); | 
 |   EXPECT_EQ(channel_id, media_channel->GetReceiveChannelId(kSsrcX)); | 
 |   EXPECT_EQ(-1, media_channel->GetReceiveChannelId(kSsrcY)); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcY)); | 
 |   int channel_id2 = voe_.GetLastChannel(); | 
 |   EXPECT_EQ(channel_id2, media_channel->GetReceiveChannelId(kSsrcY)); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, TestGetSendChannelId) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   cricket::WebRtcVoiceMediaChannel* media_channel = | 
 |         static_cast<cricket::WebRtcVoiceMediaChannel*>(channel_); | 
 |   EXPECT_EQ(-1, media_channel->GetSendChannelId(0)); | 
 |   EXPECT_TRUE(channel_->AddSendStream( | 
 |       cricket::StreamParams::CreateLegacy(kSsrcX))); | 
 |   int channel_id = voe_.GetLastChannel(); | 
 |   EXPECT_EQ(channel_id, media_channel->GetSendChannelId(kSsrcX)); | 
 |   EXPECT_EQ(-1, media_channel->GetSendChannelId(kSsrcY)); | 
 |   EXPECT_TRUE(channel_->AddSendStream( | 
 |       cricket::StreamParams::CreateLegacy(kSsrcY))); | 
 |   int channel_id2 = voe_.GetLastChannel(); | 
 |   EXPECT_EQ(channel_id2, media_channel->GetSendChannelId(kSsrcY)); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetOutputVolume) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   EXPECT_FALSE(channel_->SetOutputVolume(kSsrcY, 0.5)); | 
 |   cricket::StreamParams stream; | 
 |   stream.ssrcs.push_back(kSsrcY); | 
 |   EXPECT_TRUE(channel_->AddRecvStream(stream)); | 
 |   EXPECT_DOUBLE_EQ(1, GetRecvStream(kSsrcY).gain()); | 
 |   EXPECT_TRUE(channel_->SetOutputVolume(kSsrcY, 3)); | 
 |   EXPECT_DOUBLE_EQ(3, GetRecvStream(kSsrcY).gain()); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetOutputVolumeUnsignaledRecvStream) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |  | 
 |   // Spawn an unsignaled stream by sending a packet - gain should be 1. | 
 |   DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame)); | 
 |   EXPECT_DOUBLE_EQ(1, GetRecvStream(kSsrc1).gain()); | 
 |  | 
 |   // Should remember the volume "2" which will be set on new unsignaled streams, | 
 |   // and also set the gain to 2 on existing unsignaled streams. | 
 |   EXPECT_TRUE(channel_->SetOutputVolume(kSsrc0, 2)); | 
 |   EXPECT_DOUBLE_EQ(2, GetRecvStream(kSsrc1).gain()); | 
 |  | 
 |   // Spawn an unsignaled stream by sending a packet - gain should be 2. | 
 |   unsigned char pcmuFrame2[sizeof(kPcmuFrame)]; | 
 |   memcpy(pcmuFrame2, kPcmuFrame, sizeof(kPcmuFrame)); | 
 |   rtc::SetBE32(&pcmuFrame2[8], kSsrcX); | 
 |   DeliverPacket(pcmuFrame2, sizeof(pcmuFrame2)); | 
 |   EXPECT_DOUBLE_EQ(2, GetRecvStream(kSsrcX).gain()); | 
 |  | 
 |   // Setting gain with SSRC=0 should affect all unsignaled streams. | 
 |   EXPECT_TRUE(channel_->SetOutputVolume(kSsrc0, 3)); | 
 |   if (kMaxUnsignaledRecvStreams > 1) { | 
 |     EXPECT_DOUBLE_EQ(3, GetRecvStream(kSsrc1).gain()); | 
 |   } | 
 |   EXPECT_DOUBLE_EQ(3, GetRecvStream(kSsrcX).gain()); | 
 |  | 
 |   // Setting gain on an individual stream affects only that. | 
 |   EXPECT_TRUE(channel_->SetOutputVolume(kSsrcX, 4)); | 
 |   if (kMaxUnsignaledRecvStreams > 1) { | 
 |     EXPECT_DOUBLE_EQ(3, GetRecvStream(kSsrc1).gain()); | 
 |   } | 
 |   EXPECT_DOUBLE_EQ(4, GetRecvStream(kSsrcX).gain()); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetsSyncGroupFromSyncLabel) { | 
 |   const uint32_t kAudioSsrc = 123; | 
 |   const std::string kSyncLabel = "AvSyncLabel"; | 
 |  | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::StreamParams sp = cricket::StreamParams::CreateLegacy(kAudioSsrc); | 
 |   sp.sync_label = kSyncLabel; | 
 |   // Creating two channels to make sure that sync label is set properly for both | 
 |   // the default voice channel and following ones. | 
 |   EXPECT_TRUE(channel_->AddRecvStream(sp)); | 
 |   sp.ssrcs[0] += 1; | 
 |   EXPECT_TRUE(channel_->AddRecvStream(sp)); | 
 |  | 
 |   ASSERT_EQ(2, call_.GetAudioReceiveStreams().size()); | 
 |   EXPECT_EQ(kSyncLabel, | 
 |             call_.GetAudioReceiveStream(kAudioSsrc)->GetConfig().sync_group) | 
 |       << "SyncGroup should be set based on sync_label"; | 
 |   EXPECT_EQ(kSyncLabel, | 
 |             call_.GetAudioReceiveStream(kAudioSsrc + 1)->GetConfig().sync_group) | 
 |       << "SyncGroup should be set based on sync_label"; | 
 | } | 
 |  | 
 | // TODO(solenberg): Remove, once recv streams are configured through Call. | 
 | //                  (This is then covered by TestSetRecvRtpHeaderExtensions.) | 
 | TEST_F(WebRtcVoiceEngineTestFake, ConfiguresAudioReceiveStreamRtpExtensions) { | 
 |   // Test that setting the header extensions results in the expected state | 
 |   // changes on an associated Call. | 
 |   std::vector<uint32_t> ssrcs; | 
 |   ssrcs.push_back(223); | 
 |   ssrcs.push_back(224); | 
 |  | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   SetSendParameters(send_parameters_); | 
 |   for (uint32_t ssrc : ssrcs) { | 
 |     EXPECT_TRUE(channel_->AddRecvStream( | 
 |         cricket::StreamParams::CreateLegacy(ssrc))); | 
 |   } | 
 |  | 
 |   EXPECT_EQ(2, call_.GetAudioReceiveStreams().size()); | 
 |   for (uint32_t ssrc : ssrcs) { | 
 |     const auto* s = call_.GetAudioReceiveStream(ssrc); | 
 |     EXPECT_NE(nullptr, s); | 
 |     EXPECT_EQ(0, s->GetConfig().rtp.extensions.size()); | 
 |   } | 
 |  | 
 |   // Set up receive extensions. | 
 |   cricket::RtpCapabilities capabilities = engine_->GetCapabilities(); | 
 |   cricket::AudioRecvParameters recv_parameters; | 
 |   recv_parameters.extensions = capabilities.header_extensions; | 
 |   channel_->SetRecvParameters(recv_parameters); | 
 |   EXPECT_EQ(2, call_.GetAudioReceiveStreams().size()); | 
 |   for (uint32_t ssrc : ssrcs) { | 
 |     const auto* s = call_.GetAudioReceiveStream(ssrc); | 
 |     EXPECT_NE(nullptr, s); | 
 |     const auto& s_exts = s->GetConfig().rtp.extensions; | 
 |     EXPECT_EQ(capabilities.header_extensions.size(), s_exts.size()); | 
 |     for (const auto& e_ext : capabilities.header_extensions) { | 
 |       for (const auto& s_ext : s_exts) { | 
 |         if (e_ext.id == s_ext.id) { | 
 |           EXPECT_EQ(e_ext.uri, s_ext.uri); | 
 |         } | 
 |       } | 
 |     } | 
 |   } | 
 |  | 
 |   // Disable receive extensions. | 
 |   channel_->SetRecvParameters(cricket::AudioRecvParameters()); | 
 |   for (uint32_t ssrc : ssrcs) { | 
 |     const auto* s = call_.GetAudioReceiveStream(ssrc); | 
 |     EXPECT_NE(nullptr, s); | 
 |     EXPECT_EQ(0, s->GetConfig().rtp.extensions.size()); | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, DeliverAudioPacket_Call) { | 
 |   // Test that packets are forwarded to the Call when configured accordingly. | 
 |   const uint32_t kAudioSsrc = 1; | 
 |   rtc::CopyOnWriteBuffer kPcmuPacket(kPcmuFrame, sizeof(kPcmuFrame)); | 
 |   static const unsigned char kRtcp[] = { | 
 |     0x80, 0xc9, 0x00, 0x01, 0x00, 0x00, 0x00, 0x02, | 
 |     0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, | 
 |     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | 
 |     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | 
 |   }; | 
 |   rtc::CopyOnWriteBuffer kRtcpPacket(kRtcp, sizeof(kRtcp)); | 
 |  | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   cricket::WebRtcVoiceMediaChannel* media_channel = | 
 |       static_cast<cricket::WebRtcVoiceMediaChannel*>(channel_); | 
 |   SetSendParameters(send_parameters_); | 
 |   EXPECT_TRUE(media_channel->AddRecvStream( | 
 |       cricket::StreamParams::CreateLegacy(kAudioSsrc))); | 
 |  | 
 |   EXPECT_EQ(1, call_.GetAudioReceiveStreams().size()); | 
 |   const cricket::FakeAudioReceiveStream* s = | 
 |       call_.GetAudioReceiveStream(kAudioSsrc); | 
 |   EXPECT_EQ(0, s->received_packets()); | 
 |   channel_->OnPacketReceived(&kPcmuPacket, rtc::PacketTime()); | 
 |   EXPECT_EQ(1, s->received_packets()); | 
 |   channel_->OnRtcpReceived(&kRtcpPacket, rtc::PacketTime()); | 
 |   EXPECT_EQ(2, s->received_packets()); | 
 | } | 
 |  | 
 | // All receive channels should be associated with the first send channel, | 
 | // since they do not send RTCP SR. | 
 | TEST_F(WebRtcVoiceEngineTestFake, AssociateFirstSendChannel_SendCreatedFirst) { | 
 |   EXPECT_TRUE(SetupSendStream()); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcY)); | 
 |   EXPECT_EQ(kSsrcX, GetRecvStreamConfig(kSsrcY).rtp.local_ssrc); | 
 |   EXPECT_TRUE(channel_->AddSendStream( | 
 |       cricket::StreamParams::CreateLegacy(kSsrcZ))); | 
 |   EXPECT_EQ(kSsrcX, GetRecvStreamConfig(kSsrcY).rtp.local_ssrc); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcW)); | 
 |   EXPECT_EQ(kSsrcX, GetRecvStreamConfig(kSsrcW).rtp.local_ssrc); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, AssociateFirstSendChannel_RecvCreatedFirst) { | 
 |   EXPECT_TRUE(SetupRecvStream()); | 
 |   EXPECT_EQ(0xFA17FA17u, GetRecvStreamConfig(kSsrcX).rtp.local_ssrc); | 
 |   EXPECT_TRUE(channel_->AddSendStream( | 
 |       cricket::StreamParams::CreateLegacy(kSsrcY))); | 
 |   EXPECT_EQ(kSsrcY, GetRecvStreamConfig(kSsrcX).rtp.local_ssrc); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcZ)); | 
 |   EXPECT_EQ(kSsrcY, GetRecvStreamConfig(kSsrcZ).rtp.local_ssrc); | 
 |   EXPECT_TRUE(channel_->AddSendStream( | 
 |       cricket::StreamParams::CreateLegacy(kSsrcW))); | 
 |   EXPECT_EQ(kSsrcY, GetRecvStreamConfig(kSsrcX).rtp.local_ssrc); | 
 |   EXPECT_EQ(kSsrcY, GetRecvStreamConfig(kSsrcZ).rtp.local_ssrc); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetRawAudioSink) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   std::unique_ptr<FakeAudioSink> fake_sink_1(new FakeAudioSink()); | 
 |   std::unique_ptr<FakeAudioSink> fake_sink_2(new FakeAudioSink()); | 
 |  | 
 |   // Setting the sink before a recv stream exists should do nothing. | 
 |   channel_->SetRawAudioSink(kSsrcX, std::move(fake_sink_1)); | 
 |   EXPECT_TRUE(AddRecvStream(kSsrcX)); | 
 |   EXPECT_EQ(nullptr, GetRecvStream(kSsrcX).sink()); | 
 |  | 
 |   // Now try actually setting the sink. | 
 |   channel_->SetRawAudioSink(kSsrcX, std::move(fake_sink_2)); | 
 |   EXPECT_NE(nullptr, GetRecvStream(kSsrcX).sink()); | 
 |  | 
 |   // Now try resetting it. | 
 |   channel_->SetRawAudioSink(kSsrcX, nullptr); | 
 |   EXPECT_EQ(nullptr, GetRecvStream(kSsrcX).sink()); | 
 | } | 
 |  | 
 | TEST_F(WebRtcVoiceEngineTestFake, SetRawAudioSinkUnsignaledRecvStream) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |   std::unique_ptr<FakeAudioSink> fake_sink_1(new FakeAudioSink()); | 
 |   std::unique_ptr<FakeAudioSink> fake_sink_2(new FakeAudioSink()); | 
 |   std::unique_ptr<FakeAudioSink> fake_sink_3(new FakeAudioSink()); | 
 |   std::unique_ptr<FakeAudioSink> fake_sink_4(new FakeAudioSink()); | 
 |  | 
 |   // Should be able to set a default sink even when no stream exists. | 
 |   channel_->SetRawAudioSink(0, std::move(fake_sink_1)); | 
 |  | 
 |   // Spawn an unsignaled stream by sending a packet - it should be assigned the | 
 |   // default sink. | 
 |   DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame)); | 
 |   EXPECT_NE(nullptr, GetRecvStream(kSsrc1).sink()); | 
 |  | 
 |   // Try resetting the default sink. | 
 |   channel_->SetRawAudioSink(kSsrc0, nullptr); | 
 |   EXPECT_EQ(nullptr, GetRecvStream(kSsrc1).sink()); | 
 |  | 
 |   // Try setting the default sink while the default stream exists. | 
 |   channel_->SetRawAudioSink(kSsrc0, std::move(fake_sink_2)); | 
 |   EXPECT_NE(nullptr, GetRecvStream(kSsrc1).sink()); | 
 |  | 
 |   // If we remove and add a default stream, it should get the same sink. | 
 |   EXPECT_TRUE(channel_->RemoveRecvStream(kSsrc1)); | 
 |   DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame)); | 
 |   EXPECT_NE(nullptr, GetRecvStream(kSsrc1).sink()); | 
 |  | 
 |   // Spawn another unsignaled stream - it should be assigned the default sink | 
 |   // and the previous unsignaled stream should lose it. | 
 |   unsigned char pcmuFrame2[sizeof(kPcmuFrame)]; | 
 |   memcpy(pcmuFrame2, kPcmuFrame, sizeof(kPcmuFrame)); | 
 |   rtc::SetBE32(&pcmuFrame2[8], kSsrcX); | 
 |   DeliverPacket(pcmuFrame2, sizeof(pcmuFrame2)); | 
 |   if (kMaxUnsignaledRecvStreams > 1) { | 
 |     EXPECT_EQ(nullptr, GetRecvStream(kSsrc1).sink()); | 
 |   } | 
 |   EXPECT_NE(nullptr, GetRecvStream(kSsrcX).sink()); | 
 |  | 
 |   // Reset the default sink - the second unsignaled stream should lose it. | 
 |   channel_->SetRawAudioSink(kSsrc0, nullptr); | 
 |   if (kMaxUnsignaledRecvStreams > 1) { | 
 |     EXPECT_EQ(nullptr, GetRecvStream(kSsrc1).sink()); | 
 |   } | 
 |   EXPECT_EQ(nullptr, GetRecvStream(kSsrcX).sink()); | 
 |  | 
 |   // Try setting the default sink while two streams exists. | 
 |   channel_->SetRawAudioSink(kSsrc0, std::move(fake_sink_3)); | 
 |   if (kMaxUnsignaledRecvStreams > 1) { | 
 |     EXPECT_EQ(nullptr, GetRecvStream(kSsrc1).sink()); | 
 |   } | 
 |   EXPECT_NE(nullptr, GetRecvStream(kSsrcX).sink()); | 
 |  | 
 |   // Try setting the sink for the first unsignaled stream using its known SSRC. | 
 |   channel_->SetRawAudioSink(kSsrc1, std::move(fake_sink_4)); | 
 |   if (kMaxUnsignaledRecvStreams > 1) { | 
 |     EXPECT_NE(nullptr, GetRecvStream(kSsrc1).sink()); | 
 |   } | 
 |   EXPECT_NE(nullptr, GetRecvStream(kSsrcX).sink()); | 
 |   if (kMaxUnsignaledRecvStreams > 1) { | 
 |     EXPECT_NE(GetRecvStream(kSsrc1).sink(), GetRecvStream(kSsrcX).sink()); | 
 |   } | 
 | } | 
 |  | 
 | // Test that, just like the video channel, the voice channel communicates the | 
 | // network state to the call. | 
 | TEST_F(WebRtcVoiceEngineTestFake, OnReadyToSendSignalsNetworkState) { | 
 |   EXPECT_TRUE(SetupChannel()); | 
 |  | 
 |   EXPECT_EQ(webrtc::kNetworkUp, | 
 |             call_.GetNetworkState(webrtc::MediaType::AUDIO)); | 
 |   EXPECT_EQ(webrtc::kNetworkUp, | 
 |             call_.GetNetworkState(webrtc::MediaType::VIDEO)); | 
 |  | 
 |   channel_->OnReadyToSend(false); | 
 |   EXPECT_EQ(webrtc::kNetworkDown, | 
 |             call_.GetNetworkState(webrtc::MediaType::AUDIO)); | 
 |   EXPECT_EQ(webrtc::kNetworkUp, | 
 |             call_.GetNetworkState(webrtc::MediaType::VIDEO)); | 
 |  | 
 |   channel_->OnReadyToSend(true); | 
 |   EXPECT_EQ(webrtc::kNetworkUp, | 
 |             call_.GetNetworkState(webrtc::MediaType::AUDIO)); | 
 |   EXPECT_EQ(webrtc::kNetworkUp, | 
 |             call_.GetNetworkState(webrtc::MediaType::VIDEO)); | 
 | } | 
 |  | 
 | // Test that playout is still started after changing parameters | 
 | TEST_F(WebRtcVoiceEngineTestFake, PreservePlayoutWhenRecreateRecvStream) { | 
 |   SetupRecvStream(); | 
 |   channel_->SetPlayout(true); | 
 |   EXPECT_TRUE(GetRecvStream(kSsrcX).started()); | 
 |  | 
 |   // Changing RTP header extensions will recreate the AudioReceiveStream. | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.extensions.push_back( | 
 |       webrtc::RtpExtension(webrtc::RtpExtension::kAudioLevelUri, 12)); | 
 |   channel_->SetRecvParameters(parameters); | 
 |  | 
 |   EXPECT_TRUE(GetRecvStream(kSsrcX).started()); | 
 | } | 
 |  | 
 | // Tests that the library initializes and shuts down properly. | 
 | TEST(WebRtcVoiceEngineTest, StartupShutdown) { | 
 |   // If the VoiceEngine wants to gather available codecs early, that's fine but | 
 |   // we never want it to create a decoder at this stage. | 
 |   cricket::WebRtcVoiceEngine engine( | 
 |       nullptr, webrtc::MockAudioDecoderFactory::CreateUnusedFactory(), nullptr); | 
 |   webrtc::RtcEventLogNullImpl event_log; | 
 |   std::unique_ptr<webrtc::Call> call( | 
 |       webrtc::Call::Create(webrtc::Call::Config(&event_log))); | 
 |   cricket::VoiceMediaChannel* channel = engine.CreateChannel( | 
 |       call.get(), cricket::MediaConfig(), cricket::AudioOptions()); | 
 |   EXPECT_TRUE(channel != nullptr); | 
 |   delete channel; | 
 | } | 
 |  | 
 | // Tests that reference counting on the external ADM is correct. | 
 | TEST(WebRtcVoiceEngineTest, StartupShutdownWithExternalADM) { | 
 |   testing::NiceMock<webrtc::test::MockAudioDeviceModule> adm; | 
 |   EXPECT_CALL(adm, AddRef()).Times(3).WillRepeatedly(Return(0)); | 
 |   EXPECT_CALL(adm, Release()).Times(3).WillRepeatedly(Return(0)); | 
 |   // Return 100ms just in case this function gets called.  If we don't, | 
 |   // we could enter a tight loop since the mock would return 0. | 
 |   EXPECT_CALL(adm, TimeUntilNextProcess()).WillRepeatedly(Return(100)); | 
 |   { | 
 |     cricket::WebRtcVoiceEngine engine( | 
 |         &adm, webrtc::MockAudioDecoderFactory::CreateUnusedFactory(), nullptr); | 
 |     webrtc::RtcEventLogNullImpl event_log; | 
 |     std::unique_ptr<webrtc::Call> call( | 
 |         webrtc::Call::Create(webrtc::Call::Config(&event_log))); | 
 |     cricket::VoiceMediaChannel* channel = engine.CreateChannel( | 
 |         call.get(), cricket::MediaConfig(), cricket::AudioOptions()); | 
 |     EXPECT_TRUE(channel != nullptr); | 
 |     delete channel; | 
 |   } | 
 | } | 
 |  | 
 | // Tests that the library is configured with the codecs we want. | 
 | TEST(WebRtcVoiceEngineTest, HasCorrectCodecs) { | 
 |   // TODO(ossu): These tests should move into a future "builtin audio codecs" | 
 |   // module. | 
 |  | 
 |   // Check codecs by name. | 
 | #ifdef WEBRTC_CODEC_OPUS | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(96, "OPUS", 48000, 0, 2), nullptr)); | 
 | #endif | 
 | #if (defined(WEBRTC_CODEC_ISAC) || defined(WEBRTC_CODEC_ISACFX)) | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(96, "ISAC", 16000, 0, 1), nullptr)); | 
 | #endif | 
 | #if (defined(WEBRTC_CODEC_ISAC)) | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(96, "ISAC", 32000, 0, 1), nullptr)); | 
 | #endif | 
 | #ifdef WEBRTC_CODEC_ILBC | 
 |   // Check that name matching is case-insensitive. | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(96, "ILBC", 8000, 0, 1), nullptr)); | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(96, "iLBC", 8000, 0, 1), nullptr)); | 
 | #endif | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(96, "CN", 32000, 0, 1), nullptr)); | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(96, "CN", 16000, 0, 1), nullptr)); | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(96, "telephone-event", 8000, 0, 1), nullptr)); | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(96, "telephone-event", 16000, 0, 1), nullptr)); | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(96, "telephone-event", 32000, 0, 1), nullptr)); | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(96, "telephone-event", 48000, 0, 1), nullptr)); | 
 |   // Check codecs with an id by id. | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(0, "", 8000, 0, 1), nullptr));  // PCMU | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(8, "", 8000, 0, 1), nullptr));  // PCMA | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(9, "", 8000, 0, 1), nullptr));  // G722 | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(13, "", 8000, 0, 1), nullptr));  // CN | 
 |   // Check sample/bitrate matching. | 
 |   EXPECT_TRUE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(0, "PCMU", 8000, 64000, 1), nullptr)); | 
 |   // Check that bad codecs fail. | 
 |   EXPECT_FALSE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(99, "ABCD", 0, 0, 1), nullptr)); | 
 |   EXPECT_FALSE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(88, "", 0, 0, 1), nullptr)); | 
 |   EXPECT_FALSE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(0, "", 0, 0, 2), nullptr)); | 
 |   EXPECT_FALSE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(0, "", 5000, 0, 1), nullptr)); | 
 |   EXPECT_FALSE(cricket::WebRtcVoiceEngine::ToCodecInst( | 
 |       cricket::AudioCodec(0, "", 0, 5000, 1), nullptr)); | 
 |  | 
 |   // Verify the payload id of common audio codecs, including CN, ISAC, and G722. | 
 |   // TODO(ossu): Why are the payload types of codecs with non-static payload | 
 |   // type assignments checked here? It shouldn't really matter. | 
 |   cricket::WebRtcVoiceEngine engine( | 
 |       nullptr, webrtc::MockAudioDecoderFactory::CreateUnusedFactory(), nullptr); | 
 |   for (const cricket::AudioCodec& codec : engine.send_codecs()) { | 
 |     if (codec.name == "CN" && codec.clockrate == 16000) { | 
 |       EXPECT_EQ(105, codec.id); | 
 |     } else if (codec.name == "CN" && codec.clockrate == 32000) { | 
 |       EXPECT_EQ(106, codec.id); | 
 |     } else if (codec.name == "ISAC" && codec.clockrate == 16000) { | 
 |       EXPECT_EQ(103, codec.id); | 
 |     } else if (codec.name == "ISAC" && codec.clockrate == 32000) { | 
 |       EXPECT_EQ(104, codec.id); | 
 |     } else if (codec.name == "G722" && codec.clockrate == 8000) { | 
 |       EXPECT_EQ(9, codec.id); | 
 |     } else if (codec.name == "telephone-event" && codec.clockrate == 8000) { | 
 |       EXPECT_EQ(126, codec.id); | 
 |     // TODO(solenberg): 16k, 32k, 48k DTMF should be dynamically assigned. | 
 |     // Remove these checks once both send and receive side assigns payload types | 
 |     // dynamically. | 
 |     } else if (codec.name == "telephone-event" && codec.clockrate == 16000) { | 
 |       EXPECT_EQ(113, codec.id); | 
 |     } else if (codec.name == "telephone-event" && codec.clockrate == 32000) { | 
 |       EXPECT_EQ(112, codec.id); | 
 |     } else if (codec.name == "telephone-event" && codec.clockrate == 48000) { | 
 |       EXPECT_EQ(110, codec.id); | 
 |     } else if (codec.name == "opus") { | 
 |       EXPECT_EQ(111, codec.id); | 
 |       ASSERT_TRUE(codec.params.find("minptime") != codec.params.end()); | 
 |       EXPECT_EQ("10", codec.params.find("minptime")->second); | 
 |       ASSERT_TRUE(codec.params.find("useinbandfec") != codec.params.end()); | 
 |       EXPECT_EQ("1", codec.params.find("useinbandfec")->second); | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | // Tests that VoE supports at least 32 channels | 
 | TEST(WebRtcVoiceEngineTest, Has32Channels) { | 
 |   cricket::WebRtcVoiceEngine engine( | 
 |       nullptr, webrtc::MockAudioDecoderFactory::CreateUnusedFactory(), nullptr); | 
 |   webrtc::RtcEventLogNullImpl event_log; | 
 |   std::unique_ptr<webrtc::Call> call( | 
 |       webrtc::Call::Create(webrtc::Call::Config(&event_log))); | 
 |  | 
 |   cricket::VoiceMediaChannel* channels[32]; | 
 |   int num_channels = 0; | 
 |   while (num_channels < arraysize(channels)) { | 
 |     cricket::VoiceMediaChannel* channel = engine.CreateChannel( | 
 |         call.get(), cricket::MediaConfig(), cricket::AudioOptions()); | 
 |     if (!channel) | 
 |       break; | 
 |     channels[num_channels++] = channel; | 
 |   } | 
 |  | 
 |   int expected = arraysize(channels); | 
 |   EXPECT_EQ(expected, num_channels); | 
 |  | 
 |   while (num_channels > 0) { | 
 |     delete channels[--num_channels]; | 
 |   } | 
 | } | 
 |  | 
 | // Test that we set our preferred codecs properly. | 
 | TEST(WebRtcVoiceEngineTest, SetRecvCodecs) { | 
 |   // TODO(ossu): I'm not sure of the intent of this test. It's either: | 
 |   // - Check that our builtin codecs are usable by Channel. | 
 |   // - The codecs provided by the engine is usable by Channel. | 
 |   // It does not check that the codecs in the RecvParameters are actually | 
 |   // what we sent in - though it's probably reasonable to expect so, if | 
 |   // SetRecvParameters returns true. | 
 |   // I think it will become clear once audio decoder injection is completed. | 
 |   cricket::WebRtcVoiceEngine engine( | 
 |       nullptr, webrtc::CreateBuiltinAudioDecoderFactory(), nullptr); | 
 |   webrtc::RtcEventLogNullImpl event_log; | 
 |   std::unique_ptr<webrtc::Call> call( | 
 |       webrtc::Call::Create(webrtc::Call::Config(&event_log))); | 
 |   cricket::WebRtcVoiceMediaChannel channel(&engine, cricket::MediaConfig(), | 
 |                                            cricket::AudioOptions(), call.get()); | 
 |   cricket::AudioRecvParameters parameters; | 
 |   parameters.codecs = engine.recv_codecs(); | 
 |   EXPECT_TRUE(channel.SetRecvParameters(parameters)); | 
 | } | 
 |  | 
 | TEST(WebRtcVoiceEngineTest, CollectRecvCodecs) { | 
 |   std::vector<webrtc::AudioCodecSpec> specs; | 
 |   webrtc::AudioCodecSpec spec1({"codec1", 48000, 2, {{"param1", "value1"}}}); | 
 |   spec1.allow_comfort_noise = false; | 
 |   spec1.supports_network_adaption = true; | 
 |   specs.push_back(spec1); | 
 |   webrtc::AudioCodecSpec spec2({"codec2", 32000, 1}); | 
 |   spec2.allow_comfort_noise = false; | 
 |   specs.push_back(spec2); | 
 |   specs.push_back(webrtc::AudioCodecSpec({"codec3", 16000, 1, | 
 |                                           {{"param1", "value1b"}, | 
 |                                            {"param2", "value2"}}})); | 
 |   specs.push_back(webrtc::AudioCodecSpec({"codec4", 8000, 1})); | 
 |   specs.push_back(webrtc::AudioCodecSpec({"codec5", 8000, 2})); | 
 |  | 
 |   rtc::scoped_refptr<webrtc::MockAudioDecoderFactory> mock_factory = | 
 |       new rtc::RefCountedObject<webrtc::MockAudioDecoderFactory>; | 
 |   EXPECT_CALL(*mock_factory.get(), GetSupportedDecoders()) | 
 |       .WillOnce(Return(specs)); | 
 |  | 
 |   cricket::WebRtcVoiceEngine engine(nullptr, mock_factory, nullptr); | 
 |   auto codecs = engine.recv_codecs(); | 
 |   EXPECT_EQ(11, codecs.size()); | 
 |  | 
 |   // Rather than just ASSERTing that there are enough codecs, ensure that we can | 
 |   // check the actual values safely, to provide better test results. | 
 |   auto get_codec = | 
 |       [&codecs](size_t index) -> const cricket::AudioCodec& { | 
 |         static const cricket::AudioCodec missing_codec(0, "<missing>", 0, 0, 0); | 
 |         if (codecs.size() > index) | 
 |           return codecs[index]; | 
 |         return missing_codec; | 
 |       }; | 
 |  | 
 |   // Ensure the general codecs are generated first and in order. | 
 |   for (size_t i = 0; i != specs.size(); ++i) { | 
 |     EXPECT_EQ(specs[i].format.name, get_codec(i).name); | 
 |     EXPECT_EQ(specs[i].format.clockrate_hz, get_codec(i).clockrate); | 
 |     EXPECT_EQ(specs[i].format.num_channels, get_codec(i).channels); | 
 |     EXPECT_EQ(specs[i].format.parameters, get_codec(i).params); | 
 |   } | 
 |  | 
 |   // Find the index of a codec, or -1 if not found, so that we can easily check | 
 |   // supplementary codecs are ordered after the general codecs. | 
 |   auto find_codec = | 
 |       [&codecs](const webrtc::SdpAudioFormat& format) -> int { | 
 |         for (size_t i = 0; i != codecs.size(); ++i) { | 
 |           const cricket::AudioCodec& codec = codecs[i]; | 
 |           if (STR_CASE_CMP(codec.name.c_str(), format.name.c_str()) == 0 && | 
 |               codec.clockrate == format.clockrate_hz && | 
 |               codec.channels == format.num_channels) { | 
 |             return rtc::checked_cast<int>(i); | 
 |           } | 
 |         } | 
 |         return -1; | 
 |       }; | 
 |  | 
 |   // Ensure all supplementary codecs are generated last. Their internal ordering | 
 |   // is not important. | 
 |   // Without this cast, the comparison turned unsigned and, thus, failed for -1. | 
 |   const int num_specs = static_cast<int>(specs.size()); | 
 |   EXPECT_GE(find_codec({"cn", 8000, 1}), num_specs); | 
 |   EXPECT_GE(find_codec({"cn", 16000, 1}), num_specs); | 
 |   EXPECT_EQ(find_codec({"cn", 32000, 1}), -1); | 
 |   EXPECT_GE(find_codec({"telephone-event", 8000, 1}), num_specs); | 
 |   EXPECT_GE(find_codec({"telephone-event", 16000, 1}), num_specs); | 
 |   EXPECT_GE(find_codec({"telephone-event", 32000, 1}), num_specs); | 
 |   EXPECT_GE(find_codec({"telephone-event", 48000, 1}), num_specs); | 
 | } |