| /* |
| * Copyright 2017 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. |
| */ |
| |
| // This file contains tests that check the interaction between the |
| // PeerConnection and the underlying media engine, as well as tests that check |
| // the media-related aspects of SDP. |
| |
| #include <algorithm> |
| #include <functional> |
| #include <iterator> |
| #include <map> |
| #include <memory> |
| #include <set> |
| #include <string> |
| #include <tuple> |
| #include <type_traits> |
| #include <utility> |
| #include <vector> |
| |
| #include "absl/algorithm/container.h" |
| #include "absl/types/optional.h" |
| #include "api/audio_options.h" |
| #include "api/call/call_factory_interface.h" |
| #include "api/jsep.h" |
| #include "api/media_types.h" |
| #include "api/peer_connection_interface.h" |
| #include "api/rtc_error.h" |
| #include "api/rtc_event_log/rtc_event_log_factory.h" |
| #include "api/rtc_event_log/rtc_event_log_factory_interface.h" |
| #include "api/rtp_parameters.h" |
| #include "api/rtp_sender_interface.h" |
| #include "api/rtp_transceiver_direction.h" |
| #include "api/rtp_transceiver_interface.h" |
| #include "api/scoped_refptr.h" |
| #include "api/task_queue/default_task_queue_factory.h" |
| #include "api/task_queue/task_queue_factory.h" |
| #include "media/base/codec.h" |
| #include "media/base/fake_media_engine.h" |
| #include "media/base/media_constants.h" |
| #include "media/base/media_engine.h" |
| #include "media/base/stream_params.h" |
| #include "p2p/base/fake_port_allocator.h" |
| #include "p2p/base/p2p_constants.h" |
| #include "p2p/base/port_allocator.h" |
| #include "p2p/base/transport_info.h" |
| #include "pc/media_session.h" |
| #include "pc/peer_connection_wrapper.h" |
| #include "pc/rtp_media_utils.h" |
| #include "pc/session_description.h" |
| #include "pc/test/mock_peer_connection_observers.h" |
| #include "rtc_base/checks.h" |
| #include "rtc_base/rtc_certificate_generator.h" |
| #include "rtc_base/thread.h" |
| #include "test/gtest.h" |
| #include "test/scoped_key_value_config.h" |
| #ifdef WEBRTC_ANDROID |
| #include "pc/test/android_test_initializer.h" |
| #endif |
| #include "rtc_base/gunit.h" |
| #include "rtc_base/virtual_socket_server.h" |
| #include "test/gmock.h" |
| |
| namespace webrtc { |
| |
| using cricket::FakeMediaEngine; |
| using RTCConfiguration = PeerConnectionInterface::RTCConfiguration; |
| using RTCOfferAnswerOptions = PeerConnectionInterface::RTCOfferAnswerOptions; |
| using ::testing::Bool; |
| using ::testing::Combine; |
| using ::testing::ElementsAre; |
| using ::testing::NotNull; |
| using ::testing::Values; |
| |
| class PeerConnectionWrapperForMediaTest : public PeerConnectionWrapper { |
| public: |
| using PeerConnectionWrapper::PeerConnectionWrapper; |
| |
| FakeMediaEngine* media_engine() { return media_engine_; } |
| void set_media_engine(FakeMediaEngine* media_engine) { |
| media_engine_ = media_engine; |
| } |
| |
| private: |
| FakeMediaEngine* media_engine_; |
| }; |
| |
| class PeerConnectionMediaBaseTest : public ::testing::Test { |
| protected: |
| typedef std::unique_ptr<PeerConnectionWrapperForMediaTest> WrapperPtr; |
| |
| explicit PeerConnectionMediaBaseTest(SdpSemantics sdp_semantics) |
| : vss_(new rtc::VirtualSocketServer()), |
| main_(vss_.get()), |
| sdp_semantics_(sdp_semantics) { |
| #ifdef WEBRTC_ANDROID |
| InitializeAndroidObjects(); |
| #endif |
| } |
| |
| WrapperPtr CreatePeerConnection() { |
| return CreatePeerConnection(RTCConfiguration()); |
| } |
| |
| WrapperPtr CreatePeerConnection(const RTCConfiguration& config) { |
| return CreatePeerConnection(config, std::make_unique<FakeMediaEngine>()); |
| } |
| |
| WrapperPtr CreatePeerConnection( |
| std::unique_ptr<FakeMediaEngine> media_engine) { |
| return CreatePeerConnection(RTCConfiguration(), std::move(media_engine)); |
| } |
| |
| // Creates PeerConnectionFactory and PeerConnection for given configuration. |
| WrapperPtr CreatePeerConnection( |
| const RTCConfiguration& config, |
| std::unique_ptr<FakeMediaEngine> media_engine) { |
| auto* media_engine_ptr = media_engine.get(); |
| |
| PeerConnectionFactoryDependencies factory_dependencies; |
| |
| factory_dependencies.network_thread = rtc::Thread::Current(); |
| factory_dependencies.worker_thread = rtc::Thread::Current(); |
| factory_dependencies.signaling_thread = rtc::Thread::Current(); |
| factory_dependencies.task_queue_factory = CreateDefaultTaskQueueFactory(); |
| factory_dependencies.media_engine = std::move(media_engine); |
| factory_dependencies.call_factory = CreateCallFactory(); |
| factory_dependencies.event_log_factory = |
| std::make_unique<RtcEventLogFactory>( |
| factory_dependencies.task_queue_factory.get()); |
| |
| auto pc_factory = |
| CreateModularPeerConnectionFactory(std::move(factory_dependencies)); |
| |
| auto fake_port_allocator = std::make_unique<cricket::FakePortAllocator>( |
| rtc::Thread::Current(), |
| std::make_unique<rtc::BasicPacketSocketFactory>(vss_.get()), |
| &field_trials_); |
| auto observer = std::make_unique<MockPeerConnectionObserver>(); |
| auto modified_config = config; |
| modified_config.sdp_semantics = sdp_semantics_; |
| PeerConnectionDependencies pc_dependencies(observer.get()); |
| pc_dependencies.allocator = std::move(fake_port_allocator); |
| auto result = pc_factory->CreatePeerConnectionOrError( |
| modified_config, std::move(pc_dependencies)); |
| if (!result.ok()) { |
| return nullptr; |
| } |
| |
| auto pc = result.MoveValue(); |
| observer->SetPeerConnectionInterface(pc.get()); |
| auto wrapper = std::make_unique<PeerConnectionWrapperForMediaTest>( |
| pc_factory, pc, std::move(observer)); |
| wrapper->set_media_engine(media_engine_ptr); |
| return wrapper; |
| } |
| |
| // Accepts the same arguments as CreatePeerConnection and adds default audio |
| // track (but no video). |
| template <typename... Args> |
| WrapperPtr CreatePeerConnectionWithAudio(Args&&... args) { |
| auto wrapper = CreatePeerConnection(std::forward<Args>(args)...); |
| if (!wrapper) { |
| return nullptr; |
| } |
| wrapper->AddAudioTrack("a"); |
| return wrapper; |
| } |
| |
| // Accepts the same arguments as CreatePeerConnection and adds default video |
| // track (but no audio). |
| template <typename... Args> |
| WrapperPtr CreatePeerConnectionWithVideo(Args&&... args) { |
| auto wrapper = CreatePeerConnection(std::forward<Args>(args)...); |
| if (!wrapper) { |
| return nullptr; |
| } |
| wrapper->AddVideoTrack("v"); |
| return wrapper; |
| } |
| |
| // Accepts the same arguments as CreatePeerConnection and adds default audio |
| // and video tracks. |
| template <typename... Args> |
| WrapperPtr CreatePeerConnectionWithAudioVideo(Args&&... args) { |
| auto wrapper = CreatePeerConnection(std::forward<Args>(args)...); |
| if (!wrapper) { |
| return nullptr; |
| } |
| wrapper->AddAudioTrack("a"); |
| wrapper->AddVideoTrack("v"); |
| return wrapper; |
| } |
| |
| RtpTransceiverDirection GetMediaContentDirection( |
| const SessionDescriptionInterface* sdesc, |
| cricket::MediaType media_type) { |
| auto* content = |
| cricket::GetFirstMediaContent(sdesc->description(), media_type); |
| RTC_DCHECK(content); |
| return content->media_description()->direction(); |
| } |
| |
| bool IsUnifiedPlan() const { |
| return sdp_semantics_ == SdpSemantics::kUnifiedPlan; |
| } |
| |
| webrtc::test::ScopedKeyValueConfig field_trials_; |
| std::unique_ptr<rtc::VirtualSocketServer> vss_; |
| rtc::AutoSocketServerThread main_; |
| const SdpSemantics sdp_semantics_; |
| }; |
| |
| class PeerConnectionMediaTest |
| : public PeerConnectionMediaBaseTest, |
| public ::testing::WithParamInterface<SdpSemantics> { |
| protected: |
| PeerConnectionMediaTest() : PeerConnectionMediaBaseTest(GetParam()) {} |
| }; |
| |
| class PeerConnectionMediaTestUnifiedPlan : public PeerConnectionMediaBaseTest { |
| protected: |
| PeerConnectionMediaTestUnifiedPlan() |
| : PeerConnectionMediaBaseTest(SdpSemantics::kUnifiedPlan) {} |
| }; |
| |
| class PeerConnectionMediaTestPlanB : public PeerConnectionMediaBaseTest { |
| protected: |
| PeerConnectionMediaTestPlanB() |
| : PeerConnectionMediaBaseTest(SdpSemantics::kPlanB_DEPRECATED) {} |
| }; |
| |
| TEST_P(PeerConnectionMediaTest, |
| FailToSetRemoteDescriptionIfCreateMediaChannelFails) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnectionWithAudioVideo(); |
| callee->media_engine()->set_fail_create_channel(true); |
| |
| std::string error; |
| ASSERT_FALSE(callee->SetRemoteDescription(caller->CreateOffer(), &error)); |
| EXPECT_PRED_FORMAT2(AssertStartsWith, error, |
| "Failed to set remote offer sdp: Failed to create"); |
| } |
| |
| TEST_P(PeerConnectionMediaTest, |
| FailToSetLocalDescriptionIfCreateMediaChannelFails) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| caller->media_engine()->set_fail_create_channel(true); |
| |
| std::string error; |
| ASSERT_FALSE(caller->SetLocalDescription(caller->CreateOffer(), &error)); |
| EXPECT_PRED_FORMAT2(AssertStartsWith, error, |
| "Failed to set local offer sdp: Failed to create"); |
| } |
| |
| std::vector<std::string> GetIds( |
| const std::vector<cricket::StreamParams>& streams) { |
| std::vector<std::string> ids; |
| ids.reserve(streams.size()); |
| for (const auto& stream : streams) { |
| ids.push_back(stream.id); |
| } |
| return ids; |
| } |
| |
| // Test that exchanging an offer and answer with each side having an audio and |
| // video stream creates the appropriate send/recv streams in the underlying |
| // media engine on both sides. |
| TEST_P(PeerConnectionMediaTest, AudioVideoOfferAnswerCreateSendRecvStreams) { |
| const std::string kCallerAudioId = "caller_a"; |
| const std::string kCallerVideoId = "caller_v"; |
| const std::string kCalleeAudioId = "callee_a"; |
| const std::string kCalleeVideoId = "callee_v"; |
| |
| auto caller = CreatePeerConnection(); |
| caller->AddAudioTrack(kCallerAudioId); |
| caller->AddVideoTrack(kCallerVideoId); |
| |
| auto callee = CreatePeerConnection(); |
| callee->AddAudioTrack(kCalleeAudioId); |
| callee->AddVideoTrack(kCalleeVideoId); |
| |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| ASSERT_TRUE( |
| caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal())); |
| |
| auto* caller_voice_send = caller->media_engine()->GetVoiceSendChannel(0); |
| auto* caller_voice_receive = |
| caller->media_engine()->GetVoiceReceiveChannel(0); |
| EXPECT_THAT(GetIds(caller_voice_receive->recv_streams()), |
| ElementsAre(kCalleeAudioId)); |
| EXPECT_THAT(GetIds(caller_voice_send->send_streams()), |
| ElementsAre(kCallerAudioId)); |
| |
| auto* caller_video_send = caller->media_engine()->GetVideoSendChannel(0); |
| auto* caller_video_receive = |
| caller->media_engine()->GetVideoReceiveChannel(0); |
| EXPECT_THAT(GetIds(caller_video_receive->recv_streams()), |
| ElementsAre(kCalleeVideoId)); |
| EXPECT_THAT(GetIds(caller_video_send->send_streams()), |
| ElementsAre(kCallerVideoId)); |
| |
| auto* callee_voice_send = callee->media_engine()->GetVoiceSendChannel(0); |
| auto* callee_voice_receive = |
| callee->media_engine()->GetVoiceReceiveChannel(0); |
| EXPECT_THAT(GetIds(callee_voice_receive->recv_streams()), |
| ElementsAre(kCallerAudioId)); |
| EXPECT_THAT(GetIds(callee_voice_send->send_streams()), |
| ElementsAre(kCalleeAudioId)); |
| |
| auto* callee_video_send = callee->media_engine()->GetVideoSendChannel(0); |
| auto* callee_video_receive = |
| callee->media_engine()->GetVideoReceiveChannel(0); |
| EXPECT_THAT(GetIds(callee_video_receive->recv_streams()), |
| ElementsAre(kCallerVideoId)); |
| EXPECT_THAT(GetIds(callee_video_send->send_streams()), |
| ElementsAre(kCalleeVideoId)); |
| } |
| |
| // Test that stopping the caller transceivers causes the media channels on the |
| // callee to be destroyed after calling SetRemoteDescription on the generated |
| // offer. |
| // See next test for equivalent behavior with Plan B semantics. |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| StoppedRemoteTransceiversRemovesMediaChannels) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnection(); |
| |
| ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get())); |
| |
| // Stop both audio and video transceivers on the caller. |
| auto transceivers = caller->pc()->GetTransceivers(); |
| ASSERT_EQ(2u, transceivers.size()); |
| transceivers[0]->StopInternal(); |
| transceivers[1]->StopInternal(); |
| |
| ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get())); |
| |
| ASSERT_FALSE(callee->media_engine()->GetVoiceSendChannel(0)); |
| ASSERT_FALSE(callee->media_engine()->GetVideoSendChannel(0)); |
| ASSERT_FALSE(callee->media_engine()->GetVoiceReceiveChannel(0)); |
| ASSERT_FALSE(callee->media_engine()->GetVideoReceiveChannel(0)); |
| } |
| |
| // Test that removing streams from a subsequent offer causes the receive streams |
| // on the callee to be removed. |
| // See previous test for equivalent behavior with Unified Plan semantics. |
| TEST_F(PeerConnectionMediaTestPlanB, EmptyRemoteOfferRemovesRecvStreams) { |
| auto caller = CreatePeerConnection(); |
| auto caller_audio_track = caller->AddAudioTrack("a"); |
| auto caller_video_track = caller->AddVideoTrack("v"); |
| auto callee = CreatePeerConnectionWithAudioVideo(); |
| |
| ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get())); |
| |
| // Remove both tracks from caller. |
| caller->pc()->RemoveTrackOrError(caller_audio_track); |
| caller->pc()->RemoveTrackOrError(caller_video_track); |
| |
| ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get())); |
| |
| auto callee_voice_send = callee->media_engine()->GetVoiceSendChannel(0); |
| auto callee_video_send = callee->media_engine()->GetVideoSendChannel(0); |
| auto callee_voice_receive = callee->media_engine()->GetVoiceReceiveChannel(0); |
| auto callee_video_receive = callee->media_engine()->GetVideoReceiveChannel(0); |
| EXPECT_EQ(1u, callee_voice_send->send_streams().size()); |
| EXPECT_EQ(0u, callee_voice_receive->recv_streams().size()); |
| EXPECT_EQ(1u, callee_video_send->send_streams().size()); |
| EXPECT_EQ(0u, callee_video_receive->recv_streams().size()); |
| } |
| |
| // Test enabling of simulcast with Plan B semantics. |
| // This test creating an offer. |
| TEST_F(PeerConnectionMediaTestPlanB, SimulcastOffer) { |
| auto caller = CreatePeerConnection(); |
| auto caller_video_track = caller->AddVideoTrack("v"); |
| RTCOfferAnswerOptions options; |
| options.num_simulcast_layers = 3; |
| auto offer = caller->CreateOffer(options); |
| auto* description = cricket::GetFirstMediaContent(offer->description(), |
| cricket::MEDIA_TYPE_VIDEO) |
| ->media_description(); |
| ASSERT_EQ(1u, description->streams().size()); |
| ASSERT_TRUE(description->streams()[0].get_ssrc_group("SIM")); |
| EXPECT_EQ(3u, description->streams()[0].get_ssrc_group("SIM")->ssrcs.size()); |
| |
| // Check that it actually creates simulcast aswell. |
| caller->SetLocalDescription(std::move(offer)); |
| auto senders = caller->pc()->GetSenders(); |
| ASSERT_EQ(1u, senders.size()); |
| EXPECT_EQ(cricket::MediaType::MEDIA_TYPE_VIDEO, senders[0]->media_type()); |
| EXPECT_EQ(3u, senders[0]->GetParameters().encodings.size()); |
| } |
| |
| // Test enabling of simulcast with Plan B semantics. |
| // This test creating an answer. |
| TEST_F(PeerConnectionMediaTestPlanB, SimulcastAnswer) { |
| auto caller = CreatePeerConnection(); |
| caller->AddVideoTrack("v0"); |
| auto offer = caller->CreateOffer(); |
| auto callee = CreatePeerConnection(); |
| auto callee_video_track = callee->AddVideoTrack("v1"); |
| ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer))); |
| RTCOfferAnswerOptions options; |
| options.num_simulcast_layers = 3; |
| auto answer = callee->CreateAnswer(options); |
| auto* description = cricket::GetFirstMediaContent(answer->description(), |
| cricket::MEDIA_TYPE_VIDEO) |
| ->media_description(); |
| ASSERT_EQ(1u, description->streams().size()); |
| ASSERT_TRUE(description->streams()[0].get_ssrc_group("SIM")); |
| EXPECT_EQ(3u, description->streams()[0].get_ssrc_group("SIM")->ssrcs.size()); |
| |
| // Check that it actually creates simulcast aswell. |
| callee->SetLocalDescription(std::move(answer)); |
| auto senders = callee->pc()->GetSenders(); |
| ASSERT_EQ(1u, senders.size()); |
| EXPECT_EQ(cricket::MediaType::MEDIA_TYPE_VIDEO, senders[0]->media_type()); |
| EXPECT_EQ(3u, senders[0]->GetParameters().encodings.size()); |
| } |
| |
| // Test that stopping the callee transceivers causes the media channels to be |
| // destroyed on the callee after calling SetLocalDescription on the local |
| // answer. |
| // See next test for equivalent behavior with Plan B semantics. |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| StoppedLocalTransceiversRemovesMediaChannels) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnectionWithAudioVideo(); |
| |
| ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get())); |
| |
| // Stop both audio and video transceivers on the callee. |
| auto transceivers = callee->pc()->GetTransceivers(); |
| ASSERT_EQ(2u, transceivers.size()); |
| transceivers[0]->StopInternal(); |
| transceivers[1]->StopInternal(); |
| |
| ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get())); |
| |
| EXPECT_FALSE(callee->media_engine()->GetVoiceReceiveChannel(0)); |
| EXPECT_FALSE(callee->media_engine()->GetVideoReceiveChannel(0)); |
| } |
| |
| // Test that removing streams from a subsequent answer causes the send streams |
| // on the callee to be removed when applied locally. |
| // See previous test for equivalent behavior with Unified Plan semantics. |
| TEST_F(PeerConnectionMediaTestPlanB, EmptyLocalAnswerRemovesSendStreams) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnection(); |
| auto callee_audio_track = callee->AddAudioTrack("a"); |
| auto callee_video_track = callee->AddVideoTrack("v"); |
| |
| ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get())); |
| |
| // Remove both tracks from callee. |
| callee->pc()->RemoveTrackOrError(callee_audio_track); |
| callee->pc()->RemoveTrackOrError(callee_video_track); |
| |
| ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get())); |
| |
| auto callee_voice_send = callee->media_engine()->GetVoiceSendChannel(0); |
| auto callee_voice_receive = callee->media_engine()->GetVoiceReceiveChannel(0); |
| auto callee_video_send = callee->media_engine()->GetVideoSendChannel(0); |
| auto callee_video_receive = callee->media_engine()->GetVideoReceiveChannel(0); |
| EXPECT_EQ(0u, callee_voice_send->send_streams().size()); |
| EXPECT_EQ(1u, callee_voice_receive->recv_streams().size()); |
| EXPECT_EQ(0u, callee_video_send->send_streams().size()); |
| EXPECT_EQ(1u, callee_video_receive->recv_streams().size()); |
| } |
| |
| // Test that a new stream in a subsequent offer causes a new receive stream to |
| // be created on the callee. |
| TEST_P(PeerConnectionMediaTest, NewStreamInRemoteOfferAddsRecvStreams) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnection(); |
| |
| ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get())); |
| |
| // Add second set of tracks to the caller. |
| caller->AddAudioTrack("a2"); |
| caller->AddVideoTrack("v2"); |
| |
| ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get())); |
| |
| auto a1 = callee->media_engine()->GetVoiceReceiveChannel(0); |
| auto a2 = callee->media_engine()->GetVoiceReceiveChannel(1); |
| auto v1 = callee->media_engine()->GetVideoReceiveChannel(0); |
| auto v2 = callee->media_engine()->GetVideoReceiveChannel(1); |
| if (IsUnifiedPlan()) { |
| ASSERT_TRUE(a1); |
| EXPECT_EQ(1u, a1->recv_streams().size()); |
| ASSERT_TRUE(a2); |
| EXPECT_EQ(1u, a2->recv_streams().size()); |
| ASSERT_TRUE(v1); |
| EXPECT_EQ(1u, v1->recv_streams().size()); |
| ASSERT_TRUE(v2); |
| EXPECT_EQ(1u, v2->recv_streams().size()); |
| } else { |
| ASSERT_TRUE(a1); |
| EXPECT_EQ(2u, a1->recv_streams().size()); |
| ASSERT_FALSE(a2); |
| ASSERT_TRUE(v1); |
| EXPECT_EQ(2u, v1->recv_streams().size()); |
| ASSERT_FALSE(v2); |
| } |
| } |
| |
| // Test that a new stream in a subsequent answer causes a new send stream to be |
| // created on the callee when added locally. |
| TEST_P(PeerConnectionMediaTest, NewStreamInLocalAnswerAddsSendStreams) { |
| auto caller = CreatePeerConnection(); |
| auto callee = CreatePeerConnectionWithAudioVideo(); |
| |
| RTCOfferAnswerOptions offer_options; |
| offer_options.offer_to_receive_audio = |
| RTCOfferAnswerOptions::kOfferToReceiveMediaTrue; |
| offer_options.offer_to_receive_video = |
| RTCOfferAnswerOptions::kOfferToReceiveMediaTrue; |
| RTCOfferAnswerOptions answer_options; |
| |
| ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get(), offer_options, |
| answer_options)); |
| |
| // Add second set of tracks to the callee. |
| callee->AddAudioTrack("a2"); |
| callee->AddVideoTrack("v2"); |
| |
| ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get(), offer_options, |
| answer_options)); |
| |
| auto callee_voice = callee->media_engine()->GetVoiceSendChannel(0); |
| ASSERT_TRUE(callee_voice); |
| auto callee_video = callee->media_engine()->GetVideoSendChannel(0); |
| ASSERT_TRUE(callee_video); |
| |
| if (IsUnifiedPlan()) { |
| EXPECT_EQ(1u, callee_voice->send_streams().size()); |
| EXPECT_EQ(1u, callee_video->send_streams().size()); |
| } else { |
| EXPECT_EQ(2u, callee_voice->send_streams().size()); |
| EXPECT_EQ(2u, callee_video->send_streams().size()); |
| } |
| } |
| |
| // A PeerConnection with no local streams and no explicit answer constraints |
| // should not reject any offered media sections. |
| TEST_P(PeerConnectionMediaTest, |
| CreateAnswerWithNoStreamsAndDefaultOptionsDoesNotReject) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnection(); |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| auto answer = callee->CreateAnswer(); |
| |
| const auto* audio_content = |
| cricket::GetFirstAudioContent(answer->description()); |
| ASSERT_TRUE(audio_content); |
| EXPECT_FALSE(audio_content->rejected); |
| |
| const auto* video_content = |
| cricket::GetFirstVideoContent(answer->description()); |
| ASSERT_TRUE(video_content); |
| EXPECT_FALSE(video_content->rejected); |
| } |
| |
| // Test that raw packetization is not set in the offer by default. |
| TEST_P(PeerConnectionMediaTest, RawPacketizationNotSetInOffer) { |
| std::vector<cricket::VideoCodec> fake_codecs; |
| fake_codecs.push_back(cricket::CreateVideoCodec(111, cricket::kVp8CodecName)); |
| fake_codecs.push_back(cricket::CreateVideoCodec(112, cricket::kRtxCodecName)); |
| fake_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = "111"; |
| fake_codecs.push_back(cricket::CreateVideoCodec(113, cricket::kVp9CodecName)); |
| fake_codecs.push_back( |
| cricket::CreateVideoCodec(114, cricket::kH264CodecName)); |
| fake_codecs.push_back(cricket::CreateVideoCodec(115, "HEVC")); |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| caller_fake_engine->SetVideoCodecs(fake_codecs); |
| |
| auto caller = CreatePeerConnectionWithVideo(std::move(caller_fake_engine)); |
| auto offer = caller->CreateOfferAndSetAsLocal(); |
| auto* offer_description = |
| cricket::GetFirstVideoContentDescription(offer->description()); |
| for (const auto& codec : offer_description->codecs()) { |
| EXPECT_EQ(codec.packetization, absl::nullopt); |
| } |
| } |
| |
| // Test that raw packetization is set in the offer and answer for all |
| // video payload when raw_packetization_for_video is true. |
| TEST_P(PeerConnectionMediaTest, RawPacketizationSetInOfferAndAnswer) { |
| std::vector<cricket::VideoCodec> fake_codecs; |
| fake_codecs.push_back(cricket::CreateVideoCodec(111, cricket::kVp8CodecName)); |
| fake_codecs.push_back(cricket::CreateVideoCodec(112, cricket::kRtxCodecName)); |
| fake_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = "111"; |
| fake_codecs.push_back(cricket::CreateVideoCodec(113, cricket::kVp9CodecName)); |
| fake_codecs.push_back( |
| cricket::CreateVideoCodec(114, cricket::kH264CodecName)); |
| fake_codecs.push_back(cricket::CreateVideoCodec(115, "HEVC")); |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| caller_fake_engine->SetVideoCodecs(fake_codecs); |
| auto callee_fake_engine = std::make_unique<FakeMediaEngine>(); |
| callee_fake_engine->SetVideoCodecs(fake_codecs); |
| |
| RTCOfferAnswerOptions options; |
| options.raw_packetization_for_video = true; |
| |
| auto caller = CreatePeerConnectionWithVideo(std::move(caller_fake_engine)); |
| auto offer = caller->CreateOfferAndSetAsLocal(options); |
| auto* offer_description = |
| cricket::GetFirstVideoContentDescription(offer->description()); |
| for (const auto& codec : offer_description->codecs()) { |
| if (codec.IsMediaCodec()) { |
| EXPECT_EQ(codec.packetization, cricket::kPacketizationParamRaw); |
| } |
| } |
| |
| auto callee = CreatePeerConnectionWithVideo(std::move(callee_fake_engine)); |
| ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer))); |
| auto answer = callee->CreateAnswerAndSetAsLocal(options); |
| auto* answer_description = |
| cricket::GetFirstVideoContentDescription(answer->description()); |
| for (const auto& codec : answer_description->codecs()) { |
| if (codec.IsMediaCodec()) { |
| EXPECT_EQ(codec.packetization, cricket::kPacketizationParamRaw); |
| } |
| } |
| |
| ASSERT_TRUE(caller->SetRemoteDescription(std::move(answer))); |
| } |
| |
| // Test that raw packetization is not set in the answer when |
| // raw_packetization_for_video is true if it was not set in the offer. |
| TEST_P(PeerConnectionMediaTest, |
| RawPacketizationNotSetInAnswerWhenNotSetInOffer) { |
| std::vector<cricket::VideoCodec> fake_codecs; |
| fake_codecs.push_back(cricket::CreateVideoCodec(111, cricket::kVp8CodecName)); |
| fake_codecs.push_back(cricket::CreateVideoCodec(112, cricket::kRtxCodecName)); |
| fake_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = "111"; |
| fake_codecs.push_back(cricket::CreateVideoCodec(113, cricket::kVp9CodecName)); |
| fake_codecs.push_back( |
| cricket::CreateVideoCodec(114, cricket::kH264CodecName)); |
| fake_codecs.push_back(cricket::CreateVideoCodec(115, "HEVC")); |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| caller_fake_engine->SetVideoCodecs(fake_codecs); |
| auto callee_fake_engine = std::make_unique<FakeMediaEngine>(); |
| callee_fake_engine->SetVideoCodecs(fake_codecs); |
| |
| RTCOfferAnswerOptions caller_options; |
| caller_options.raw_packetization_for_video = false; |
| RTCOfferAnswerOptions callee_options; |
| callee_options.raw_packetization_for_video = true; |
| |
| auto caller = CreatePeerConnectionWithVideo(std::move(caller_fake_engine)); |
| auto offer = caller->CreateOfferAndSetAsLocal(caller_options); |
| |
| auto callee = CreatePeerConnectionWithVideo(std::move(callee_fake_engine)); |
| ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer))); |
| auto answer = callee->CreateAnswerAndSetAsLocal(callee_options); |
| |
| auto* answer_description = |
| cricket::GetFirstVideoContentDescription(answer->description()); |
| for (const auto& codec : answer_description->codecs()) { |
| EXPECT_EQ(codec.packetization, absl::nullopt); |
| } |
| |
| ASSERT_TRUE(caller->SetRemoteDescription(std::move(answer))); |
| } |
| |
| class PeerConnectionMediaOfferDirectionTest |
| : public PeerConnectionMediaBaseTest, |
| public ::testing::WithParamInterface< |
| std::tuple<SdpSemantics, |
| std::tuple<bool, int, RtpTransceiverDirection>>> { |
| protected: |
| PeerConnectionMediaOfferDirectionTest() |
| : PeerConnectionMediaBaseTest(std::get<0>(GetParam())) { |
| auto param = std::get<1>(GetParam()); |
| send_media_ = std::get<0>(param); |
| offer_to_receive_ = std::get<1>(param); |
| expected_direction_ = std::get<2>(param); |
| } |
| |
| bool send_media_; |
| int offer_to_receive_; |
| RtpTransceiverDirection expected_direction_; |
| }; |
| |
| // Tests that the correct direction is set on the media description according |
| // to the presence of a local media track and the offer_to_receive setting. |
| TEST_P(PeerConnectionMediaOfferDirectionTest, VerifyDirection) { |
| auto caller = CreatePeerConnection(); |
| if (send_media_) { |
| caller->AddAudioTrack("a"); |
| } |
| |
| RTCOfferAnswerOptions options; |
| options.offer_to_receive_audio = offer_to_receive_; |
| auto offer = caller->CreateOffer(options); |
| |
| auto* content = cricket::GetFirstMediaContent(offer->description(), |
| cricket::MEDIA_TYPE_AUDIO); |
| if (expected_direction_ == RtpTransceiverDirection::kInactive) { |
| EXPECT_FALSE(content); |
| } else { |
| EXPECT_EQ(expected_direction_, content->media_description()->direction()); |
| } |
| } |
| |
| // Note that in these tests, MD_INACTIVE indicates that no media section is |
| // included in the offer, not that the media direction is inactive. |
| INSTANTIATE_TEST_SUITE_P( |
| PeerConnectionMediaTest, |
| PeerConnectionMediaOfferDirectionTest, |
| Combine( |
| Values(SdpSemantics::kPlanB_DEPRECATED, SdpSemantics::kUnifiedPlan), |
| Values(std::make_tuple(false, -1, RtpTransceiverDirection::kInactive), |
| std::make_tuple(false, 0, RtpTransceiverDirection::kInactive), |
| std::make_tuple(false, 1, RtpTransceiverDirection::kRecvOnly), |
| std::make_tuple(true, -1, RtpTransceiverDirection::kSendRecv), |
| std::make_tuple(true, 0, RtpTransceiverDirection::kSendOnly), |
| std::make_tuple(true, 1, RtpTransceiverDirection::kSendRecv)))); |
| |
| class PeerConnectionMediaAnswerDirectionTest |
| : public PeerConnectionMediaBaseTest, |
| public ::testing::WithParamInterface< |
| std::tuple<SdpSemantics, RtpTransceiverDirection, bool, int>> { |
| protected: |
| PeerConnectionMediaAnswerDirectionTest() |
| : PeerConnectionMediaBaseTest(std::get<0>(GetParam())) { |
| offer_direction_ = std::get<1>(GetParam()); |
| send_media_ = std::get<2>(GetParam()); |
| offer_to_receive_ = std::get<3>(GetParam()); |
| } |
| |
| RtpTransceiverDirection offer_direction_; |
| bool send_media_; |
| int offer_to_receive_; |
| }; |
| |
| // Tests that the direction in an answer is correct according to direction sent |
| // in the offer, the presence of a local media track on the receive side and the |
| // offer_to_receive setting. |
| TEST_P(PeerConnectionMediaAnswerDirectionTest, VerifyDirection) { |
| if (IsUnifiedPlan() && |
| offer_to_receive_ != RTCOfferAnswerOptions::kUndefined) { |
| // offer_to_receive_ is not implemented when creating answers with Unified |
| // Plan semantics specified. |
| return; |
| } |
| |
| auto caller = CreatePeerConnection(); |
| caller->AddAudioTrack("a"); |
| |
| // Create the offer with an audio section and set its direction. |
| auto offer = caller->CreateOffer(); |
| cricket::GetFirstAudioContentDescription(offer->description()) |
| ->set_direction(offer_direction_); |
| |
| auto callee = CreatePeerConnection(); |
| if (send_media_) { |
| callee->AddAudioTrack("a"); |
| } |
| ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer))); |
| |
| // Create the answer according to the test parameters. |
| RTCOfferAnswerOptions options; |
| options.offer_to_receive_audio = offer_to_receive_; |
| auto answer = callee->CreateAnswer(options); |
| |
| // The expected direction in the answer is the intersection of each side's |
| // capability to send/recv media. |
| // For the offerer, the direction is given in the offer (offer_direction_). |
| // For the answerer, the direction has two components: |
| // 1. Send if the answerer has a local track to send. |
| // 2. Receive if the answerer has explicitly set the offer_to_receive to 1 or |
| // if it has been left as default. |
| bool offer_send = RtpTransceiverDirectionHasSend(offer_direction_); |
| bool offer_recv = RtpTransceiverDirectionHasRecv(offer_direction_); |
| |
| // The negotiated components determine the direction set in the answer. |
| bool negotiate_send = (send_media_ && offer_recv); |
| bool negotiate_recv = ((offer_to_receive_ != 0) && offer_send); |
| |
| auto expected_direction = |
| RtpTransceiverDirectionFromSendRecv(negotiate_send, negotiate_recv); |
| EXPECT_EQ(expected_direction, |
| GetMediaContentDirection(answer.get(), cricket::MEDIA_TYPE_AUDIO)); |
| } |
| |
| // Tests that the media section is rejected if and only if the callee has no |
| // local media track and has set offer_to_receive to 0, no matter which |
| // direction the caller indicated in the offer. |
| TEST_P(PeerConnectionMediaAnswerDirectionTest, VerifyRejected) { |
| if (IsUnifiedPlan() && |
| offer_to_receive_ != RTCOfferAnswerOptions::kUndefined) { |
| // offer_to_receive_ is not implemented when creating answers with Unified |
| // Plan semantics specified. |
| return; |
| } |
| |
| auto caller = CreatePeerConnection(); |
| caller->AddAudioTrack("a"); |
| |
| // Create the offer with an audio section and set its direction. |
| auto offer = caller->CreateOffer(); |
| cricket::GetFirstAudioContentDescription(offer->description()) |
| ->set_direction(offer_direction_); |
| |
| auto callee = CreatePeerConnection(); |
| if (send_media_) { |
| callee->AddAudioTrack("a"); |
| } |
| ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer))); |
| |
| // Create the answer according to the test parameters. |
| RTCOfferAnswerOptions options; |
| options.offer_to_receive_audio = offer_to_receive_; |
| auto answer = callee->CreateAnswer(options); |
| |
| // The media section is rejected if and only if offer_to_receive is explicitly |
| // set to 0 and there is no media to send. |
| auto* audio_content = cricket::GetFirstAudioContent(answer->description()); |
| ASSERT_TRUE(audio_content); |
| EXPECT_EQ((offer_to_receive_ == 0 && !send_media_), audio_content->rejected); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(PeerConnectionMediaTest, |
| PeerConnectionMediaAnswerDirectionTest, |
| Combine(Values(SdpSemantics::kPlanB_DEPRECATED, |
| SdpSemantics::kUnifiedPlan), |
| Values(RtpTransceiverDirection::kInactive, |
| RtpTransceiverDirection::kSendOnly, |
| RtpTransceiverDirection::kRecvOnly, |
| RtpTransceiverDirection::kSendRecv), |
| Bool(), |
| Values(-1, 0, 1))); |
| |
| TEST_P(PeerConnectionMediaTest, OfferHasDifferentDirectionForAudioVideo) { |
| auto caller = CreatePeerConnection(); |
| caller->AddVideoTrack("v"); |
| |
| RTCOfferAnswerOptions options; |
| options.offer_to_receive_audio = 1; |
| options.offer_to_receive_video = 0; |
| auto offer = caller->CreateOffer(options); |
| |
| EXPECT_EQ(RtpTransceiverDirection::kRecvOnly, |
| GetMediaContentDirection(offer.get(), cricket::MEDIA_TYPE_AUDIO)); |
| EXPECT_EQ(RtpTransceiverDirection::kSendOnly, |
| GetMediaContentDirection(offer.get(), cricket::MEDIA_TYPE_VIDEO)); |
| } |
| |
| TEST_P(PeerConnectionMediaTest, AnswerHasDifferentDirectionsForAudioVideo) { |
| if (IsUnifiedPlan()) { |
| // offer_to_receive_ is not implemented when creating answers with Unified |
| // Plan semantics specified. |
| return; |
| } |
| |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnection(); |
| callee->AddVideoTrack("v"); |
| |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| |
| RTCOfferAnswerOptions options; |
| options.offer_to_receive_audio = 1; |
| options.offer_to_receive_video = 0; |
| auto answer = callee->CreateAnswer(options); |
| |
| EXPECT_EQ(RtpTransceiverDirection::kRecvOnly, |
| GetMediaContentDirection(answer.get(), cricket::MEDIA_TYPE_AUDIO)); |
| EXPECT_EQ(RtpTransceiverDirection::kSendOnly, |
| GetMediaContentDirection(answer.get(), cricket::MEDIA_TYPE_VIDEO)); |
| } |
| |
| void AddComfortNoiseCodecsToSend(cricket::FakeMediaEngine* media_engine) { |
| const cricket::AudioCodec kComfortNoiseCodec8k = |
| cricket::CreateAudioCodec(102, cricket::kCnCodecName, 8000, 1); |
| const cricket::AudioCodec kComfortNoiseCodec16k = |
| cricket::CreateAudioCodec(103, cricket::kCnCodecName, 16000, 1); |
| |
| auto codecs = media_engine->voice().send_codecs(); |
| codecs.push_back(kComfortNoiseCodec8k); |
| codecs.push_back(kComfortNoiseCodec16k); |
| media_engine->SetAudioCodecs(codecs); |
| } |
| |
| bool HasAnyComfortNoiseCodecs(const cricket::SessionDescription* desc) { |
| const auto* audio_desc = cricket::GetFirstAudioContentDescription(desc); |
| for (const auto& codec : audio_desc->codecs()) { |
| if (codec.name == cricket::kCnCodecName) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool HasPayloadTypeConflict(const cricket::SessionDescription* desc) { |
| std::set<int> payload_types; |
| const auto* audio_desc = cricket::GetFirstAudioContentDescription(desc); |
| if (audio_desc) { |
| for (const auto& codec : audio_desc->codecs()) { |
| if (payload_types.count(codec.id) > 0) { |
| return true; |
| } |
| payload_types.insert(codec.id); |
| } |
| } |
| const auto* video_desc = cricket::GetFirstVideoContentDescription(desc); |
| if (video_desc) { |
| for (const auto& codec : video_desc->codecs()) { |
| if (payload_types.count(codec.id) > 0) { |
| return true; |
| } |
| payload_types.insert(codec.id); |
| } |
| } |
| return false; |
| } |
| |
| TEST_P(PeerConnectionMediaTest, |
| CreateOfferWithNoVoiceActivityDetectionIncludesNoComfortNoiseCodecs) { |
| auto fake_engine = std::make_unique<FakeMediaEngine>(); |
| AddComfortNoiseCodecsToSend(fake_engine.get()); |
| auto caller = CreatePeerConnectionWithAudioVideo(std::move(fake_engine)); |
| |
| RTCOfferAnswerOptions options; |
| options.voice_activity_detection = false; |
| auto offer = caller->CreateOffer(options); |
| |
| EXPECT_FALSE(HasAnyComfortNoiseCodecs(offer->description())); |
| } |
| |
| TEST_P(PeerConnectionMediaTest, |
| CreateOfferWithVoiceActivityDetectionIncludesComfortNoiseCodecs) { |
| auto fake_engine = std::make_unique<FakeMediaEngine>(); |
| AddComfortNoiseCodecsToSend(fake_engine.get()); |
| auto caller = CreatePeerConnectionWithAudioVideo(std::move(fake_engine)); |
| |
| RTCOfferAnswerOptions options; |
| options.voice_activity_detection = true; |
| auto offer = caller->CreateOffer(options); |
| |
| EXPECT_TRUE(HasAnyComfortNoiseCodecs(offer->description())); |
| } |
| |
| TEST_P(PeerConnectionMediaTest, |
| CreateAnswerWithVoiceActivityDetectionIncludesNoComfortNoiseCodecs) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| |
| auto callee_fake_engine = std::make_unique<FakeMediaEngine>(); |
| AddComfortNoiseCodecsToSend(callee_fake_engine.get()); |
| auto callee = |
| CreatePeerConnectionWithAudioVideo(std::move(callee_fake_engine)); |
| |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| |
| RTCOfferAnswerOptions options; |
| options.voice_activity_detection = true; |
| auto answer = callee->CreateAnswer(options); |
| |
| EXPECT_FALSE(HasAnyComfortNoiseCodecs(answer->description())); |
| } |
| |
| TEST_P(PeerConnectionMediaTest, |
| CreateAnswerWithNoVoiceActivityDetectionIncludesNoComfortNoiseCodecs) { |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| AddComfortNoiseCodecsToSend(caller_fake_engine.get()); |
| auto caller = |
| CreatePeerConnectionWithAudioVideo(std::move(caller_fake_engine)); |
| |
| auto callee_fake_engine = std::make_unique<FakeMediaEngine>(); |
| AddComfortNoiseCodecsToSend(callee_fake_engine.get()); |
| auto callee = |
| CreatePeerConnectionWithAudioVideo(std::move(callee_fake_engine)); |
| |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| |
| RTCOfferAnswerOptions options; |
| options.voice_activity_detection = false; |
| auto answer = callee->CreateAnswer(options); |
| |
| EXPECT_FALSE(HasAnyComfortNoiseCodecs(answer->description())); |
| } |
| |
| // The following test group verifies that we reject answers with invalid media |
| // sections as per RFC 3264. |
| |
| class PeerConnectionMediaInvalidMediaTest |
| : public PeerConnectionMediaBaseTest, |
| public ::testing::WithParamInterface<std::tuple< |
| SdpSemantics, |
| std::tuple<std::string, |
| std::function<void(cricket::SessionDescription*)>, |
| std::string>>> { |
| protected: |
| PeerConnectionMediaInvalidMediaTest() |
| : PeerConnectionMediaBaseTest(std::get<0>(GetParam())) { |
| auto param = std::get<1>(GetParam()); |
| mutator_ = std::get<1>(param); |
| expected_error_ = std::get<2>(param); |
| } |
| |
| std::function<void(cricket::SessionDescription*)> mutator_; |
| std::string expected_error_; |
| }; |
| |
| TEST_P(PeerConnectionMediaInvalidMediaTest, FailToSetRemoteAnswer) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnectionWithAudioVideo(); |
| |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| |
| auto answer = callee->CreateAnswer(); |
| mutator_(answer->description()); |
| |
| std::string error; |
| ASSERT_FALSE(caller->SetRemoteDescription(std::move(answer), &error)); |
| EXPECT_EQ("Failed to set remote answer sdp: " + expected_error_, error); |
| } |
| |
| TEST_P(PeerConnectionMediaInvalidMediaTest, FailToSetLocalAnswer) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnectionWithAudioVideo(); |
| |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| |
| auto answer = callee->CreateAnswer(); |
| mutator_(answer->description()); |
| |
| std::string error; |
| ASSERT_FALSE(callee->SetLocalDescription(std::move(answer), &error)); |
| EXPECT_EQ("Failed to set local answer sdp: " + expected_error_, error); |
| } |
| |
| void RemoveVideoContentAndUnbundle(cricket::SessionDescription* desc) { |
| // Removing BUNDLE is easier than removing the content in there. |
| desc->RemoveGroupByName("BUNDLE"); |
| auto content_name = cricket::GetFirstVideoContent(desc)->name; |
| desc->RemoveContentByName(content_name); |
| desc->RemoveTransportInfoByName(content_name); |
| } |
| |
| void RenameVideoContentAndUnbundle(cricket::SessionDescription* desc) { |
| // Removing BUNDLE is easier than renaming the content in there. |
| desc->RemoveGroupByName("BUNDLE"); |
| auto* video_content = cricket::GetFirstVideoContent(desc); |
| auto* transport_info = desc->GetTransportInfoByName(video_content->name); |
| video_content->name = "video_renamed"; |
| transport_info->content_name = video_content->name; |
| } |
| |
| void ReverseMediaContent(cricket::SessionDescription* desc) { |
| absl::c_reverse(desc->contents()); |
| absl::c_reverse(desc->transport_infos()); |
| } |
| |
| void ChangeMediaTypeAudioToVideo(cricket::SessionDescription* desc) { |
| std::string audio_mid = cricket::GetFirstAudioContent(desc)->name; |
| desc->RemoveContentByName(audio_mid); |
| auto* video_content = cricket::GetFirstVideoContent(desc); |
| desc->AddContent(audio_mid, video_content->type, |
| video_content->media_description()->Clone()); |
| } |
| |
| constexpr char kMLinesOutOfOrder[] = |
| "The order of m-lines in answer doesn't match order in offer. Rejecting " |
| "answer."; |
| |
| INSTANTIATE_TEST_SUITE_P( |
| PeerConnectionMediaTest, |
| PeerConnectionMediaInvalidMediaTest, |
| Combine(Values(SdpSemantics::kPlanB_DEPRECATED, SdpSemantics::kUnifiedPlan), |
| Values(std::make_tuple("remove video", |
| RemoveVideoContentAndUnbundle, |
| kMLinesOutOfOrder), |
| std::make_tuple("rename video", |
| RenameVideoContentAndUnbundle, |
| kMLinesOutOfOrder), |
| std::make_tuple("reverse media sections", |
| ReverseMediaContent, |
| kMLinesOutOfOrder), |
| std::make_tuple("change audio type to video type", |
| ChangeMediaTypeAudioToVideo, |
| kMLinesOutOfOrder)))); |
| |
| // Test that the correct media engine send/recv streams are created when doing |
| // a series of offer/answers where audio/video are both sent, then audio is |
| // rejected, then both audio/video sent again. |
| TEST_P(PeerConnectionMediaTest, TestAVOfferWithAudioOnlyAnswer) { |
| if (IsUnifiedPlan()) { |
| // offer_to_receive_ is not implemented when creating answers with Unified |
| // Plan semantics specified. |
| return; |
| } |
| |
| RTCOfferAnswerOptions options_reject_video; |
| options_reject_video.offer_to_receive_audio = |
| RTCOfferAnswerOptions::kOfferToReceiveMediaTrue; |
| options_reject_video.offer_to_receive_video = 0; |
| |
| auto caller = CreatePeerConnection(); |
| caller->AddAudioTrack("a"); |
| caller->AddVideoTrack("v"); |
| auto callee = CreatePeerConnection(); |
| |
| // Caller initially offers to send/recv audio and video. |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| // Callee accepts the audio as recv only but rejects the video. |
| ASSERT_TRUE(caller->SetRemoteDescription( |
| callee->CreateAnswerAndSetAsLocal(options_reject_video))); |
| |
| auto caller_voice_send = caller->media_engine()->GetVoiceSendChannel(0); |
| auto caller_voice_receive = caller->media_engine()->GetVoiceReceiveChannel(0); |
| ASSERT_TRUE(caller_voice_send && caller_voice_receive); |
| EXPECT_EQ(0u, caller_voice_receive->recv_streams().size()); |
| EXPECT_EQ(1u, caller_voice_send->send_streams().size()); |
| auto caller_video = caller->media_engine()->GetVideoSendChannel(0); |
| EXPECT_FALSE(caller_video); |
| |
| // Callee adds its own audio/video stream and offers to receive audio/video |
| // too. |
| callee->AddAudioTrack("a"); |
| auto callee_video_track = callee->AddVideoTrack("v"); |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| ASSERT_TRUE( |
| caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal())); |
| |
| auto callee_voice_send = callee->media_engine()->GetVoiceSendChannel(0); |
| auto callee_voice_receive = callee->media_engine()->GetVoiceReceiveChannel(0); |
| ASSERT_TRUE(callee_voice_send && callee_voice_receive); |
| EXPECT_EQ(1u, callee_voice_receive->recv_streams().size()); |
| EXPECT_EQ(1u, callee_voice_send->send_streams().size()); |
| auto callee_video_send = callee->media_engine()->GetVideoSendChannel(0); |
| auto callee_video_receive = callee->media_engine()->GetVideoReceiveChannel(0); |
| ASSERT_TRUE(callee_video_send && callee_video_receive); |
| EXPECT_EQ(1u, callee_video_receive->recv_streams().size()); |
| EXPECT_EQ(1u, callee_video_send->send_streams().size()); |
| |
| // Callee removes video but keeps audio and rejects the video once again. |
| callee->pc()->RemoveTrackOrError(callee_video_track); |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| ASSERT_TRUE( |
| callee->SetLocalDescription(callee->CreateAnswer(options_reject_video))); |
| |
| callee_voice_send = callee->media_engine()->GetVoiceSendChannel(0); |
| callee_voice_receive = callee->media_engine()->GetVoiceReceiveChannel(0); |
| ASSERT_TRUE(callee_voice_send && callee_voice_receive); |
| EXPECT_EQ(1u, callee_voice_receive->recv_streams().size()); |
| EXPECT_EQ(1u, callee_voice_send->send_streams().size()); |
| auto callee_video = callee->media_engine()->GetVideoSendChannel(0); |
| EXPECT_FALSE(callee_video); |
| } |
| |
| // Test that the correct media engine send/recv streams are created when doing |
| // a series of offer/answers where audio/video are both sent, then video is |
| // rejected, then both audio/video sent again. |
| TEST_P(PeerConnectionMediaTest, TestAVOfferWithVideoOnlyAnswer) { |
| if (IsUnifiedPlan()) { |
| // offer_to_receive_ is not implemented when creating answers with Unified |
| // Plan semantics specified. |
| return; |
| } |
| |
| // Disable the bundling here. If the media is bundled on audio |
| // transport, then we can't reject the audio because switching the bundled |
| // transport is not currently supported. |
| // (https://bugs.chromium.org/p/webrtc/issues/detail?id=6704) |
| RTCOfferAnswerOptions options_no_bundle; |
| options_no_bundle.use_rtp_mux = false; |
| RTCOfferAnswerOptions options_reject_audio = options_no_bundle; |
| options_reject_audio.offer_to_receive_audio = 0; |
| options_reject_audio.offer_to_receive_video = |
| RTCOfferAnswerOptions::kMaxOfferToReceiveMedia; |
| |
| auto caller = CreatePeerConnection(); |
| caller->AddAudioTrack("a"); |
| caller->AddVideoTrack("v"); |
| auto callee = CreatePeerConnection(); |
| |
| // Caller initially offers to send/recv audio and video. |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| // Callee accepts the video as recv only but rejects the audio. |
| ASSERT_TRUE(caller->SetRemoteDescription( |
| callee->CreateAnswerAndSetAsLocal(options_reject_audio))); |
| |
| auto caller_voice = caller->media_engine()->GetVoiceSendChannel(0); |
| EXPECT_FALSE(caller_voice); |
| auto caller_video_send = caller->media_engine()->GetVideoSendChannel(0); |
| auto caller_video_receive = caller->media_engine()->GetVideoReceiveChannel(0); |
| ASSERT_TRUE(caller_video_send && caller_video_receive); |
| EXPECT_EQ(0u, caller_video_receive->recv_streams().size()); |
| EXPECT_EQ(1u, caller_video_send->send_streams().size()); |
| |
| // Callee adds its own audio/video stream and offers to receive audio/video |
| // too. |
| auto callee_audio_track = callee->AddAudioTrack("a"); |
| callee->AddVideoTrack("v"); |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| ASSERT_TRUE(caller->SetRemoteDescription( |
| callee->CreateAnswerAndSetAsLocal(options_no_bundle))); |
| |
| auto callee_voice_send = callee->media_engine()->GetVoiceSendChannel(0); |
| auto callee_voice_receive = callee->media_engine()->GetVoiceReceiveChannel(0); |
| ASSERT_TRUE(callee_voice_send && callee_voice_receive); |
| EXPECT_EQ(1u, callee_voice_receive->recv_streams().size()); |
| EXPECT_EQ(1u, callee_voice_send->send_streams().size()); |
| auto callee_video_send = callee->media_engine()->GetVideoSendChannel(0); |
| auto callee_video_receive = callee->media_engine()->GetVideoReceiveChannel(0); |
| ASSERT_TRUE(callee_video_send && callee_video_receive); |
| EXPECT_EQ(1u, callee_video_receive->recv_streams().size()); |
| EXPECT_EQ(1u, callee_video_send->send_streams().size()); |
| |
| // Callee removes audio but keeps video and rejects the audio once again. |
| callee->pc()->RemoveTrackOrError(callee_audio_track); |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| ASSERT_TRUE( |
| callee->SetLocalDescription(callee->CreateAnswer(options_reject_audio))); |
| |
| auto callee_voice = callee->media_engine()->GetVoiceReceiveChannel(0); |
| EXPECT_FALSE(callee_voice); |
| callee_video_send = callee->media_engine()->GetVideoSendChannel(0); |
| callee_video_receive = callee->media_engine()->GetVideoReceiveChannel(0); |
| ASSERT_TRUE(callee_video_send && callee_video_receive); |
| EXPECT_EQ(1u, callee_video_receive->recv_streams().size()); |
| EXPECT_EQ(1u, callee_video_send->send_streams().size()); |
| } |
| |
| // Tests that if the underlying video encoder fails to be initialized (signaled |
| // by failing to set send codecs), the PeerConnection signals the error to the |
| // client. |
| TEST_P(PeerConnectionMediaTest, MediaEngineErrorPropagatedToClients) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnectionWithAudioVideo(); |
| |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| |
| auto video_channel = caller->media_engine()->GetVideoSendChannel(0); |
| video_channel->set_fail_set_send_codecs(true); |
| |
| std::string error; |
| ASSERT_FALSE(caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal(), |
| &error)); |
| EXPECT_EQ(std::string("Failed to set remote answer sdp: Failed to set remote " |
| "video description " |
| "send parameters for m-section with mid='") + |
| (IsUnifiedPlan() ? "1" : "video") + "'.", |
| error); |
| } |
| |
| // Tests that if the underlying video encoder fails once then subsequent |
| // attempts at setting the local/remote description will also fail, even if |
| // SetSendCodecs no longer fails. |
| TEST_P(PeerConnectionMediaTest, |
| FailToApplyDescriptionIfVideoEncoderHasEverFailed) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnectionWithAudioVideo(); |
| |
| ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal())); |
| |
| auto video_channel = caller->media_engine()->GetVideoSendChannel(0); |
| video_channel->set_fail_set_send_codecs(true); |
| |
| EXPECT_FALSE( |
| caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal())); |
| |
| video_channel->set_fail_set_send_codecs(false); |
| |
| EXPECT_FALSE(caller->SetRemoteDescription(callee->CreateAnswer())); |
| EXPECT_FALSE(caller->SetLocalDescription(caller->CreateOffer())); |
| } |
| |
| void RenameContent(cricket::SessionDescription* desc, |
| cricket::MediaType media_type, |
| const std::string& new_name) { |
| auto* content = cricket::GetFirstMediaContent(desc, media_type); |
| RTC_DCHECK(content); |
| std::string old_name = content->name; |
| content->name = new_name; |
| auto* transport = desc->GetTransportInfoByName(old_name); |
| RTC_DCHECK(transport); |
| transport->content_name = new_name; |
| |
| // Rename the content name in the BUNDLE group. |
| cricket::ContentGroup new_bundle_group = |
| *desc->GetGroupByName(cricket::GROUP_TYPE_BUNDLE); |
| new_bundle_group.RemoveContentName(old_name); |
| new_bundle_group.AddContentName(new_name); |
| desc->RemoveGroupByName(cricket::GROUP_TYPE_BUNDLE); |
| desc->AddGroup(new_bundle_group); |
| } |
| |
| // Tests that an answer responds with the same MIDs as the offer. |
| TEST_P(PeerConnectionMediaTest, AnswerHasSameMidsAsOffer) { |
| const std::string kAudioMid = "notdefault1"; |
| const std::string kVideoMid = "notdefault2"; |
| |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnectionWithAudioVideo(); |
| |
| auto offer = caller->CreateOffer(); |
| RenameContent(offer->description(), cricket::MEDIA_TYPE_AUDIO, kAudioMid); |
| RenameContent(offer->description(), cricket::MEDIA_TYPE_VIDEO, kVideoMid); |
| ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer))); |
| |
| auto answer = callee->CreateAnswer(); |
| EXPECT_EQ(kAudioMid, |
| cricket::GetFirstAudioContent(answer->description())->name); |
| EXPECT_EQ(kVideoMid, |
| cricket::GetFirstVideoContent(answer->description())->name); |
| } |
| |
| // Test that if the callee creates a re-offer, the MIDs are the same as the |
| // original offer. |
| TEST_P(PeerConnectionMediaTest, ReOfferHasSameMidsAsFirstOffer) { |
| const std::string kAudioMid = "notdefault1"; |
| const std::string kVideoMid = "notdefault2"; |
| |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnectionWithAudioVideo(); |
| |
| auto offer = caller->CreateOffer(); |
| RenameContent(offer->description(), cricket::MEDIA_TYPE_AUDIO, kAudioMid); |
| RenameContent(offer->description(), cricket::MEDIA_TYPE_VIDEO, kVideoMid); |
| ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer))); |
| ASSERT_TRUE(callee->SetLocalDescription(callee->CreateAnswer())); |
| |
| auto reoffer = callee->CreateOffer(); |
| EXPECT_EQ(kAudioMid, |
| cricket::GetFirstAudioContent(reoffer->description())->name); |
| EXPECT_EQ(kVideoMid, |
| cricket::GetFirstVideoContent(reoffer->description())->name); |
| } |
| |
| // Test that SetRemoteDescription returns an error if there are two m= sections |
| // with the same MID value. |
| TEST_P(PeerConnectionMediaTest, SetRemoteDescriptionFailsWithDuplicateMids) { |
| auto caller = CreatePeerConnectionWithAudioVideo(); |
| auto callee = CreatePeerConnectionWithAudioVideo(); |
| |
| auto offer = caller->CreateOffer(); |
| RenameContent(offer->description(), cricket::MEDIA_TYPE_AUDIO, "same"); |
| RenameContent(offer->description(), cricket::MEDIA_TYPE_VIDEO, "same"); |
| |
| std::string error; |
| EXPECT_FALSE(callee->SetRemoteDescription(std::move(offer), &error)); |
| EXPECT_EQ(error, |
| "Failed to set remote offer sdp: Duplicate a=mid value 'same'."); |
| } |
| |
| // Test that if a RED codec refers to another codec in its fmtp line, but that |
| // codec's payload type was reassigned for some reason (either the remote |
| // endpoint selected a different payload type or there was a conflict), the RED |
| // fmtp line is modified to refer to the correct payload type. |
| TEST_P(PeerConnectionMediaTest, RedFmtpPayloadTypeReassigned) { |
| std::vector<cricket::AudioCodec> caller_fake_codecs; |
| caller_fake_codecs.push_back(cricket::CreateAudioCodec(100, "foo", 0, 1)); |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| caller_fake_engine->SetAudioCodecs(caller_fake_codecs); |
| auto caller = CreatePeerConnectionWithAudio(std::move(caller_fake_engine)); |
| |
| std::vector<cricket::AudioCodec> callee_fake_codecs; |
| callee_fake_codecs.push_back(cricket::CreateAudioCodec(120, "foo", 0, 1)); |
| callee_fake_codecs.push_back( |
| cricket::CreateAudioCodec(121, cricket::kRedCodecName, 0, 1)); |
| callee_fake_codecs.back().SetParam(cricket::kCodecParamNotInNameValueFormat, |
| "120/120"); |
| auto callee_fake_engine = std::make_unique<FakeMediaEngine>(); |
| callee_fake_engine->SetAudioCodecs(callee_fake_codecs); |
| auto callee = CreatePeerConnectionWithAudio(std::move(callee_fake_engine)); |
| |
| // Offer from the caller establishes 100 as the "foo" payload type. |
| auto offer = caller->CreateOfferAndSetAsLocal(); |
| callee->SetRemoteDescription(std::move(offer)); |
| auto answer = callee->CreateAnswerAndSetAsLocal(); |
| auto answer_description = |
| cricket::GetFirstAudioContentDescription(answer->description()); |
| ASSERT_EQ(1u, answer_description->codecs().size()); |
| |
| // Offer from the callee should respect the established payload type, and |
| // attempt to add RED, which should refer to the correct payload type. |
| offer = callee->CreateOfferAndSetAsLocal(); |
| auto* offer_description = |
| cricket::GetFirstAudioContentDescription(offer->description()); |
| ASSERT_EQ(2u, offer_description->codecs().size()); |
| for (const auto& codec : offer_description->codecs()) { |
| if (codec.name == "foo") { |
| ASSERT_EQ(100, codec.id); |
| } else if (codec.name == cricket::kRedCodecName) { |
| std::string fmtp; |
| ASSERT_TRUE(codec.GetParam("", &fmtp)); |
| EXPECT_EQ("100/100", fmtp); |
| } |
| } |
| } |
| |
| // Test that RED without fmtp does match RED without fmtp. |
| TEST_P(PeerConnectionMediaTest, RedFmtpPayloadTypeNoFmtpMatchNoFmtp) { |
| std::vector<cricket::AudioCodec> caller_fake_codecs; |
| caller_fake_codecs.push_back(cricket::CreateAudioCodec(100, "foo", 0, 1)); |
| caller_fake_codecs.push_back( |
| cricket::CreateAudioCodec(101, cricket::kRedCodecName, 0, 1)); |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| caller_fake_engine->SetAudioCodecs(caller_fake_codecs); |
| auto caller = CreatePeerConnectionWithAudio(std::move(caller_fake_engine)); |
| |
| std::vector<cricket::AudioCodec> callee_fake_codecs; |
| callee_fake_codecs.push_back(cricket::CreateAudioCodec(120, "foo", 0, 1)); |
| callee_fake_codecs.push_back( |
| cricket::CreateAudioCodec(121, cricket::kRedCodecName, 0, 1)); |
| auto callee_fake_engine = std::make_unique<FakeMediaEngine>(); |
| callee_fake_engine->SetAudioCodecs(callee_fake_codecs); |
| auto callee = CreatePeerConnectionWithAudio(std::move(callee_fake_engine)); |
| |
| // Offer from the caller establishes 100 as the "foo" payload type. |
| // Red (without fmtp) is negotiated. |
| auto offer = caller->CreateOfferAndSetAsLocal(); |
| callee->SetRemoteDescription(std::move(offer)); |
| auto answer = callee->CreateAnswerAndSetAsLocal(); |
| auto answer_description = |
| cricket::GetFirstAudioContentDescription(answer->description()); |
| ASSERT_EQ(2u, answer_description->codecs().size()); |
| |
| // Offer from the callee should respect the established payload type, and |
| // attempt to add RED. |
| offer = callee->CreateOfferAndSetAsLocal(); |
| auto* offer_description = |
| cricket::GetFirstAudioContentDescription(offer->description()); |
| ASSERT_EQ(2u, offer_description->codecs().size()); |
| for (const auto& codec : offer_description->codecs()) { |
| if (codec.name == "foo") { |
| ASSERT_EQ(100, codec.id); |
| } else if (codec.name == cricket::kRedCodecName) { |
| ASSERT_EQ(101, codec.id); |
| } |
| } |
| } |
| |
| // Test that RED without fmtp does not match RED with fmtp. |
| TEST_P(PeerConnectionMediaTest, RedFmtpPayloadTypeNoFmtpNoMatchFmtp) { |
| std::vector<cricket::AudioCodec> caller_fake_codecs; |
| caller_fake_codecs.push_back(cricket::CreateAudioCodec(100, "foo", 0, 1)); |
| caller_fake_codecs.push_back( |
| cricket::CreateAudioCodec(101, cricket::kRedCodecName, 0, 1)); |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| caller_fake_engine->SetAudioCodecs(caller_fake_codecs); |
| auto caller = CreatePeerConnectionWithAudio(std::move(caller_fake_engine)); |
| |
| std::vector<cricket::AudioCodec> callee_fake_codecs; |
| callee_fake_codecs.push_back(cricket::CreateAudioCodec(120, "foo", 0, 1)); |
| callee_fake_codecs.push_back( |
| cricket::CreateAudioCodec(121, cricket::kRedCodecName, 0, 1)); |
| callee_fake_codecs.back().SetParam(cricket::kCodecParamNotInNameValueFormat, |
| "120/120"); |
| auto callee_fake_engine = std::make_unique<FakeMediaEngine>(); |
| callee_fake_engine->SetAudioCodecs(callee_fake_codecs); |
| auto callee = CreatePeerConnectionWithAudio(std::move(callee_fake_engine)); |
| |
| // Offer from the caller establishes 100 as the "foo" payload type. |
| // It should not negotiate RED. |
| auto offer = caller->CreateOfferAndSetAsLocal(); |
| callee->SetRemoteDescription(std::move(offer)); |
| auto answer = callee->CreateAnswerAndSetAsLocal(); |
| auto answer_description = |
| cricket::GetFirstAudioContentDescription(answer->description()); |
| ASSERT_EQ(1u, answer_description->codecs().size()); |
| |
| // Offer from the callee should respect the established payload type, and |
| // attempt to add RED, which should refer to the correct payload type. |
| offer = callee->CreateOfferAndSetAsLocal(); |
| auto* offer_description = |
| cricket::GetFirstAudioContentDescription(offer->description()); |
| ASSERT_EQ(2u, offer_description->codecs().size()); |
| for (const auto& codec : offer_description->codecs()) { |
| if (codec.name == "foo") { |
| ASSERT_EQ(100, codec.id); |
| } else if (codec.name == cricket::kRedCodecName) { |
| std::string fmtp; |
| ASSERT_TRUE( |
| codec.GetParam(cricket::kCodecParamNotInNameValueFormat, &fmtp)); |
| EXPECT_EQ("100/100", fmtp); |
| } |
| } |
| } |
| |
| // Test that RED with fmtp must match base codecs. |
| TEST_P(PeerConnectionMediaTest, RedFmtpPayloadTypeMustMatchBaseCodecs) { |
| std::vector<cricket::AudioCodec> caller_fake_codecs; |
| caller_fake_codecs.push_back(cricket::CreateAudioCodec(100, "foo", 0, 1)); |
| caller_fake_codecs.push_back( |
| cricket::CreateAudioCodec(101, cricket::kRedCodecName, 0, 1)); |
| caller_fake_codecs.back().SetParam(cricket::kCodecParamNotInNameValueFormat, |
| "100/100"); |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| caller_fake_engine->SetAudioCodecs(caller_fake_codecs); |
| auto caller = CreatePeerConnectionWithAudio(std::move(caller_fake_engine)); |
| |
| std::vector<cricket::AudioCodec> callee_fake_codecs; |
| callee_fake_codecs.push_back(cricket::CreateAudioCodec(120, "foo", 0, 1)); |
| callee_fake_codecs.push_back( |
| cricket::CreateAudioCodec(121, cricket::kRedCodecName, 0, 1)); |
| callee_fake_codecs.push_back(cricket::CreateAudioCodec(122, "bar", 0, 1)); |
| callee_fake_codecs.back().SetParam(cricket::kCodecParamNotInNameValueFormat, |
| "122/122"); |
| auto callee_fake_engine = std::make_unique<FakeMediaEngine>(); |
| callee_fake_engine->SetAudioCodecs(callee_fake_codecs); |
| auto callee = CreatePeerConnectionWithAudio(std::move(callee_fake_engine)); |
| |
| // Offer from the caller establishes 100 as the "foo" payload type. |
| // It should not negotiate RED since RED is associated with foo, not bar. |
| auto offer = caller->CreateOfferAndSetAsLocal(); |
| callee->SetRemoteDescription(std::move(offer)); |
| auto answer = callee->CreateAnswerAndSetAsLocal(); |
| auto answer_description = |
| cricket::GetFirstAudioContentDescription(answer->description()); |
| ASSERT_EQ(1u, answer_description->codecs().size()); |
| } |
| |
| // Test behaviour when the RED fmtp attempts to specify different codecs |
| // which is not supported. |
| TEST_P(PeerConnectionMediaTest, RedFmtpPayloadMixed) { |
| std::vector<cricket::AudioCodec> caller_fake_codecs; |
| caller_fake_codecs.push_back(cricket::CreateAudioCodec(100, "foo", 0, 1)); |
| caller_fake_codecs.push_back(cricket::CreateAudioCodec(102, "bar", 0, 1)); |
| caller_fake_codecs.push_back( |
| cricket::CreateAudioCodec(101, cricket::kRedCodecName, 0, 1)); |
| caller_fake_codecs.back().SetParam(cricket::kCodecParamNotInNameValueFormat, |
| "100/102"); |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| caller_fake_engine->SetAudioCodecs(caller_fake_codecs); |
| auto caller = CreatePeerConnectionWithAudio(std::move(caller_fake_engine)); |
| |
| std::vector<cricket::AudioCodec> callee_fake_codecs; |
| callee_fake_codecs.push_back(cricket::CreateAudioCodec(120, "foo", 0, 1)); |
| callee_fake_codecs.push_back( |
| cricket::CreateAudioCodec(121, cricket::kRedCodecName, 0, 1)); |
| callee_fake_codecs.back().SetParam(cricket::kCodecParamNotInNameValueFormat, |
| "120/120"); |
| auto callee_fake_engine = std::make_unique<FakeMediaEngine>(); |
| callee_fake_engine->SetAudioCodecs(callee_fake_codecs); |
| auto callee = CreatePeerConnectionWithAudio(std::move(callee_fake_engine)); |
| |
| // Offer from the caller establishes 100 as the "foo" payload type. |
| auto offer = caller->CreateOfferAndSetAsLocal(); |
| callee->SetRemoteDescription(std::move(offer)); |
| auto answer = callee->CreateAnswerAndSetAsLocal(); |
| auto answer_description = |
| cricket::GetFirstAudioContentDescription(answer->description()); |
| // RED is not negotiated. |
| ASSERT_EQ(1u, answer_description->codecs().size()); |
| } |
| |
| // Test behaviour when the RED fmtp attempts to negotiate different levels of |
| // redundancy. |
| TEST_P(PeerConnectionMediaTest, RedFmtpPayloadDifferentRedundancy) { |
| std::vector<cricket::AudioCodec> caller_fake_codecs; |
| caller_fake_codecs.push_back(cricket::CreateAudioCodec(100, "foo", 0, 1)); |
| caller_fake_codecs.push_back( |
| cricket::CreateAudioCodec(101, cricket::kRedCodecName, 0, 1)); |
| caller_fake_codecs.back().SetParam(cricket::kCodecParamNotInNameValueFormat, |
| "100/100"); |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| caller_fake_engine->SetAudioCodecs(caller_fake_codecs); |
| auto caller = CreatePeerConnectionWithAudio(std::move(caller_fake_engine)); |
| |
| std::vector<cricket::AudioCodec> callee_fake_codecs; |
| callee_fake_codecs.push_back(cricket::CreateAudioCodec(120, "foo", 0, 1)); |
| callee_fake_codecs.push_back( |
| cricket::CreateAudioCodec(121, cricket::kRedCodecName, 0, 1)); |
| callee_fake_codecs.back().SetParam(cricket::kCodecParamNotInNameValueFormat, |
| "120/120/120"); |
| auto callee_fake_engine = std::make_unique<FakeMediaEngine>(); |
| callee_fake_engine->SetAudioCodecs(callee_fake_codecs); |
| auto callee = CreatePeerConnectionWithAudio(std::move(callee_fake_engine)); |
| |
| // Offer from the caller establishes 100 as the "foo" payload type. |
| auto offer = caller->CreateOfferAndSetAsLocal(); |
| callee->SetRemoteDescription(std::move(offer)); |
| auto answer = callee->CreateAnswerAndSetAsLocal(); |
| auto answer_description = |
| cricket::GetFirstAudioContentDescription(answer->description()); |
| // RED is negotiated. |
| ASSERT_EQ(2u, answer_description->codecs().size()); |
| |
| // Offer from the callee should respect the established payload type, and |
| // attempt to add RED, which should refer to the correct payload type. |
| offer = callee->CreateOfferAndSetAsLocal(); |
| auto* offer_description = |
| cricket::GetFirstAudioContentDescription(offer->description()); |
| ASSERT_EQ(2u, offer_description->codecs().size()); |
| for (const auto& codec : offer_description->codecs()) { |
| if (codec.name == "foo") { |
| ASSERT_EQ(100, codec.id); |
| } else if (codec.name == cricket::kRedCodecName) { |
| std::string fmtp; |
| ASSERT_TRUE( |
| codec.GetParam(cricket::kCodecParamNotInNameValueFormat, &fmtp)); |
| EXPECT_EQ("100/100", fmtp); |
| } |
| } |
| } |
| |
| template <typename C> |
| bool CompareCodecs(const std::vector<webrtc::RtpCodecCapability>& capabilities, |
| const std::vector<C>& codecs) { |
| bool capability_has_rtx = |
| absl::c_any_of(capabilities, [](const webrtc::RtpCodecCapability& codec) { |
| return codec.name == cricket::kRtxCodecName; |
| }); |
| bool codecs_has_rtx = absl::c_any_of(codecs, [](const C& codec) { |
| return codec.name == cricket::kRtxCodecName; |
| }); |
| |
| std::vector<C> codecs_no_rtx; |
| absl::c_copy_if( |
| codecs, std::back_inserter(codecs_no_rtx), |
| [](const C& codec) { return codec.name != cricket::kRtxCodecName; }); |
| |
| std::vector<webrtc::RtpCodecCapability> capabilities_no_rtx; |
| absl::c_copy_if(capabilities, std::back_inserter(capabilities_no_rtx), |
| [](const webrtc::RtpCodecCapability& codec) { |
| return codec.name != cricket::kRtxCodecName; |
| }); |
| |
| return capability_has_rtx == codecs_has_rtx && |
| absl::c_equal( |
| capabilities_no_rtx, codecs_no_rtx, |
| [](const webrtc::RtpCodecCapability& capability, const C& codec) { |
| return codec.MatchesCapability(capability); |
| }); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesAudioMissingRecvCodec) { |
| auto fake_engine = std::make_unique<FakeMediaEngine>(); |
| auto send_codecs = fake_engine->voice().send_codecs(); |
| send_codecs.push_back(cricket::CreateAudioCodec(send_codecs.back().id + 1, |
| "send_only_codec", 0, 1)); |
| fake_engine->SetAudioSendCodecs(send_codecs); |
| |
| auto caller = CreatePeerConnectionWithAudio(std::move(fake_engine)); |
| |
| auto transceiver = caller->pc()->GetTransceivers().front(); |
| auto capabilities = caller->pc_factory()->GetRtpSenderCapabilities( |
| cricket::MediaType::MEDIA_TYPE_AUDIO); |
| |
| std::vector<webrtc::RtpCodecCapability> codecs; |
| absl::c_copy_if(capabilities.codecs, std::back_inserter(codecs), |
| [](const webrtc::RtpCodecCapability& codec) { |
| return codec.name.find("_only_") != std::string::npos; |
| }); |
| |
| auto result = transceiver->SetCodecPreferences(codecs); |
| EXPECT_EQ(RTCErrorType::INVALID_MODIFICATION, result.type()); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesAudioMissingSendCodec) { |
| auto fake_engine = std::make_unique<FakeMediaEngine>(); |
| auto recv_codecs = fake_engine->voice().recv_codecs(); |
| recv_codecs.push_back(cricket::CreateAudioCodec(recv_codecs.back().id + 1, |
| "recv_only_codec", 0, 1)); |
| fake_engine->SetAudioRecvCodecs(recv_codecs); |
| auto caller = CreatePeerConnectionWithAudio(std::move(fake_engine)); |
| |
| auto transceiver = caller->pc()->GetTransceivers().front(); |
| auto capabilities = caller->pc_factory()->GetRtpReceiverCapabilities( |
| cricket::MediaType::MEDIA_TYPE_AUDIO); |
| |
| std::vector<webrtc::RtpCodecCapability> codecs; |
| absl::c_copy_if(capabilities.codecs, std::back_inserter(codecs), |
| [](const webrtc::RtpCodecCapability& codec) { |
| return codec.name.find("_only_") != std::string::npos; |
| }); |
| |
| auto result = transceiver->SetCodecPreferences(codecs); |
| EXPECT_EQ(RTCErrorType::INVALID_MODIFICATION, result.type()); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesAudioRejectsVideoCodec) { |
| auto caller = CreatePeerConnectionWithAudio(); |
| |
| auto transceiver = caller->pc()->GetTransceivers().front(); |
| auto video_codecs = |
| caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MediaType::MEDIA_TYPE_VIDEO) |
| .codecs; |
| auto codecs = |
| caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MediaType::MEDIA_TYPE_AUDIO) |
| .codecs; |
| codecs.insert(codecs.end(), video_codecs.begin(), video_codecs.end()); |
| auto result = transceiver->SetCodecPreferences(codecs); |
| EXPECT_EQ(RTCErrorType::INVALID_MODIFICATION, result.type()); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesAudioRejectsOnlyRtxRedFec) { |
| auto fake_engine = std::make_unique<FakeMediaEngine>(); |
| auto audio_codecs = fake_engine->voice().send_codecs(); |
| audio_codecs.push_back(cricket::CreateAudioCodec( |
| audio_codecs.back().id + 1, cricket::kRtxCodecName, 0, 1)); |
| audio_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = |
| std::to_string(audio_codecs.back().id - 1); |
| audio_codecs.push_back(cricket::CreateAudioCodec( |
| audio_codecs.back().id + 1, cricket::kRedCodecName, 0, 1)); |
| audio_codecs.push_back(cricket::CreateAudioCodec( |
| audio_codecs.back().id + 1, cricket::kUlpfecCodecName, 0, 1)); |
| fake_engine->SetAudioCodecs(audio_codecs); |
| |
| auto caller = CreatePeerConnectionWithAudio(std::move(fake_engine)); |
| |
| auto transceiver = caller->pc()->GetTransceivers().front(); |
| auto codecs = |
| caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MediaType::MEDIA_TYPE_AUDIO) |
| .codecs; |
| auto codecs_only_rtx_red_fec = codecs; |
| auto it = std::remove_if(codecs_only_rtx_red_fec.begin(), |
| codecs_only_rtx_red_fec.end(), |
| [](const webrtc::RtpCodecCapability& codec) { |
| return !(codec.name == cricket::kRtxCodecName || |
| codec.name == cricket::kRedCodecName || |
| codec.name == cricket::kUlpfecCodecName); |
| }); |
| codecs_only_rtx_red_fec.erase(it, codecs_only_rtx_red_fec.end()); |
| |
| auto result = transceiver->SetCodecPreferences(codecs_only_rtx_red_fec); |
| EXPECT_EQ(RTCErrorType::INVALID_MODIFICATION, result.type()); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, SetCodecPreferencesAllAudioCodecs) { |
| auto caller = CreatePeerConnectionWithAudio(); |
| |
| auto sender_audio_codecs = |
| caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MEDIA_TYPE_AUDIO) |
| .codecs; |
| |
| auto audio_transceiver = caller->pc()->GetTransceivers().front(); |
| |
| // Normal case, set all capabilities as preferences |
| EXPECT_TRUE(audio_transceiver->SetCodecPreferences(sender_audio_codecs).ok()); |
| auto offer = caller->CreateOffer(); |
| auto codecs = offer->description() |
| ->contents()[0] |
| .media_description() |
| ->as_audio() |
| ->codecs(); |
| EXPECT_TRUE(CompareCodecs(sender_audio_codecs, codecs)); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesResetAudioCodecs) { |
| auto caller = CreatePeerConnectionWithAudio(); |
| |
| auto sender_audio_codecs = |
| caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MEDIA_TYPE_AUDIO) |
| .codecs; |
| std::vector<webrtc::RtpCodecCapability> empty_codecs = {}; |
| |
| auto audio_transceiver = caller->pc()->GetTransceivers().front(); |
| |
| // Normal case, reset codec preferences |
| EXPECT_TRUE(audio_transceiver->SetCodecPreferences(empty_codecs).ok()); |
| auto offer = caller->CreateOffer(); |
| auto codecs = offer->description() |
| ->contents()[0] |
| .media_description() |
| ->as_audio() |
| ->codecs(); |
| EXPECT_TRUE(CompareCodecs(sender_audio_codecs, codecs)); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesVideoRejectsAudioCodec) { |
| auto caller = CreatePeerConnectionWithVideo(); |
| |
| auto transceiver = caller->pc()->GetTransceivers().front(); |
| auto audio_codecs = |
| caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MediaType::MEDIA_TYPE_AUDIO) |
| .codecs; |
| auto codecs = |
| caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MediaType::MEDIA_TYPE_VIDEO) |
| .codecs; |
| codecs.insert(codecs.end(), audio_codecs.begin(), audio_codecs.end()); |
| auto result = transceiver->SetCodecPreferences(codecs); |
| EXPECT_EQ(RTCErrorType::INVALID_MODIFICATION, result.type()); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesVideoRejectsOnlyRtxRedFec) { |
| auto fake_engine = std::make_unique<FakeMediaEngine>(); |
| auto video_codecs = fake_engine->video().send_codecs(); |
| video_codecs.push_back(cricket::CreateVideoCodec(video_codecs.back().id + 1, |
| cricket::kRtxCodecName)); |
| video_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = |
| std::to_string(video_codecs.back().id - 1); |
| video_codecs.push_back(cricket::CreateVideoCodec(video_codecs.back().id + 1, |
| cricket::kRedCodecName)); |
| video_codecs.push_back(cricket::CreateVideoCodec(video_codecs.back().id + 1, |
| cricket::kUlpfecCodecName)); |
| fake_engine->SetVideoCodecs(video_codecs); |
| |
| auto caller = CreatePeerConnectionWithVideo(std::move(fake_engine)); |
| |
| auto transceiver = caller->pc()->GetTransceivers().front(); |
| auto codecs = |
| caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MediaType::MEDIA_TYPE_VIDEO) |
| .codecs; |
| auto codecs_only_rtx_red_fec = codecs; |
| auto it = std::remove_if(codecs_only_rtx_red_fec.begin(), |
| codecs_only_rtx_red_fec.end(), |
| [](const webrtc::RtpCodecCapability& codec) { |
| return !(codec.name == cricket::kRtxCodecName || |
| codec.name == cricket::kRedCodecName || |
| codec.name == cricket::kUlpfecCodecName); |
| }); |
| codecs_only_rtx_red_fec.erase(it, codecs_only_rtx_red_fec.end()); |
| |
| auto result = transceiver->SetCodecPreferences(codecs_only_rtx_red_fec); |
| EXPECT_EQ(RTCErrorType::INVALID_MODIFICATION, result.type()); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, SetCodecPreferencesAllVideoCodecs) { |
| auto caller = CreatePeerConnectionWithVideo(); |
| |
| auto sender_video_codecs = |
| caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MEDIA_TYPE_VIDEO) |
| .codecs; |
| |
| auto video_transceiver = caller->pc()->GetTransceivers().front(); |
| |
| // Normal case, setting preferences to normal capabilities |
| EXPECT_TRUE(video_transceiver->SetCodecPreferences(sender_video_codecs).ok()); |
| auto offer = caller->CreateOffer(); |
| auto codecs = offer->description() |
| ->contents()[0] |
| .media_description() |
| ->as_video() |
| ->codecs(); |
| EXPECT_TRUE(CompareCodecs(sender_video_codecs, codecs)); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesResetVideoCodecs) { |
| auto caller = CreatePeerConnectionWithVideo(); |
| |
| auto sender_video_codecs = |
| caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MEDIA_TYPE_VIDEO) |
| .codecs; |
| |
| std::vector<webrtc::RtpCodecCapability> empty_codecs = {}; |
| |
| auto video_transceiver = caller->pc()->GetTransceivers().front(); |
| |
| // Normal case, resetting preferences with empty list of codecs |
| EXPECT_TRUE(video_transceiver->SetCodecPreferences(empty_codecs).ok()); |
| auto offer = caller->CreateOffer(); |
| auto codecs = offer->description() |
| ->contents()[0] |
| .media_description() |
| ->as_video() |
| ->codecs(); |
| EXPECT_TRUE(CompareCodecs(sender_video_codecs, codecs)); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesVideoCodecDuplicatesRemoved) { |
| auto caller = CreatePeerConnectionWithVideo(); |
| |
| auto sender_video_codecs = |
| caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MEDIA_TYPE_VIDEO) |
| .codecs; |
| |
| auto video_transceiver = caller->pc()->GetTransceivers().front(); |
| |
| // Check duplicates are removed |
| auto single_codec = sender_video_codecs; |
| single_codec.resize(1); |
| auto duplicate_codec = single_codec; |
| duplicate_codec.push_back(duplicate_codec.front()); |
| duplicate_codec.push_back(duplicate_codec.front()); |
| duplicate_codec.push_back(duplicate_codec.front()); |
| |
| EXPECT_TRUE(video_transceiver->SetCodecPreferences(duplicate_codec).ok()); |
| auto offer = caller->CreateOffer(); |
| auto codecs = offer->description() |
| ->contents()[0] |
| .media_description() |
| ->as_video() |
| ->codecs(); |
| EXPECT_TRUE(CompareCodecs(single_codec, codecs)); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, SetCodecPreferencesVideoWithRtx) { |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| auto caller_video_codecs = caller_fake_engine->video().send_codecs(); |
| caller_video_codecs.push_back(cricket::CreateVideoCodec( |
| caller_video_codecs.back().id + 1, cricket::kVp8CodecName)); |
| caller_video_codecs.push_back(cricket::CreateVideoCodec( |
| caller_video_codecs.back().id + 1, cricket::kRtxCodecName)); |
| caller_video_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = |
| std::to_string(caller_video_codecs.back().id - 1); |
| caller_video_codecs.push_back(cricket::CreateVideoCodec( |
| caller_video_codecs.back().id + 1, cricket::kVp9CodecName)); |
| caller_video_codecs.push_back(cricket::CreateVideoCodec( |
| caller_video_codecs.back().id + 1, cricket::kRtxCodecName)); |
| caller_video_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = |
| std::to_string(caller_video_codecs.back().id - 1); |
| caller_fake_engine->SetVideoCodecs(caller_video_codecs); |
| |
| auto caller = CreatePeerConnectionWithVideo(std::move(caller_fake_engine)); |
| |
| auto sender_video_codecs = |
| caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MEDIA_TYPE_VIDEO) |
| .codecs; |
| |
| auto video_transceiver = caller->pc()->GetTransceivers().front(); |
| |
| // Check that RTX codec is properly added |
| auto video_codecs_vpx_rtx = sender_video_codecs; |
| auto it = |
| std::remove_if(video_codecs_vpx_rtx.begin(), video_codecs_vpx_rtx.end(), |
| [](const webrtc::RtpCodecCapability& codec) { |
| return codec.name != cricket::kRtxCodecName && |
| codec.name != cricket::kVp8CodecName && |
| codec.name != cricket::kVp9CodecName; |
| }); |
| video_codecs_vpx_rtx.erase(it, video_codecs_vpx_rtx.end()); |
| absl::c_reverse(video_codecs_vpx_rtx); |
| EXPECT_EQ(video_codecs_vpx_rtx.size(), 3u); // VP8, VP9, RTX |
| EXPECT_TRUE( |
| video_transceiver->SetCodecPreferences(video_codecs_vpx_rtx).ok()); |
| auto offer = caller->CreateOffer(); |
| auto codecs = offer->description() |
| ->contents()[0] |
| .media_description() |
| ->as_video() |
| ->codecs(); |
| |
| EXPECT_TRUE(CompareCodecs(video_codecs_vpx_rtx, codecs)); |
| EXPECT_EQ(codecs.size(), 4u); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesVideoCodecsNegotiation) { |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| auto caller_video_codecs = caller_fake_engine->video().send_codecs(); |
| caller_video_codecs.push_back(cricket::CreateVideoCodec( |
| caller_video_codecs.back().id + 1, cricket::kVp8CodecName)); |
| caller_video_codecs.push_back(cricket::CreateVideoCodec( |
| caller_video_codecs.back().id + 1, cricket::kRtxCodecName)); |
| caller_video_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = |
| std::to_string(caller_video_codecs.back().id - 1); |
| caller_video_codecs.push_back(cricket::CreateVideoCodec( |
| caller_video_codecs.back().id + 1, cricket::kVp9CodecName)); |
| caller_video_codecs.push_back(cricket::CreateVideoCodec( |
| caller_video_codecs.back().id + 1, cricket::kRtxCodecName)); |
| caller_video_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = |
| std::to_string(caller_video_codecs.back().id - 1); |
| caller_fake_engine->SetVideoCodecs(caller_video_codecs); |
| |
| auto callee_fake_engine = std::make_unique<FakeMediaEngine>(); |
| callee_fake_engine->SetVideoCodecs(caller_video_codecs); |
| |
| auto caller = CreatePeerConnectionWithVideo(std::move(caller_fake_engine)); |
| auto callee = CreatePeerConnection(std::move(callee_fake_engine)); |
| |
| auto video_codecs = caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MEDIA_TYPE_VIDEO) |
| .codecs; |
| |
| auto send_transceiver = caller->pc()->GetTransceivers().front(); |
| |
| auto video_codecs_vpx = video_codecs; |
| auto it = std::remove_if(video_codecs_vpx.begin(), video_codecs_vpx.end(), |
| [](const webrtc::RtpCodecCapability& codec) { |
| return codec.name != cricket::kVp8CodecName && |
| codec.name != cricket::kVp9CodecName; |
| }); |
| video_codecs_vpx.erase(it, video_codecs_vpx.end()); |
| EXPECT_EQ(video_codecs_vpx.size(), 2u); // VP8, VP9 |
| EXPECT_TRUE(send_transceiver->SetCodecPreferences(video_codecs_vpx).ok()); |
| |
| auto offer = caller->CreateOfferAndSetAsLocal(); |
| auto codecs = offer->description() |
| ->contents()[0] |
| .media_description() |
| ->as_video() |
| ->codecs(); |
| |
| EXPECT_EQ(codecs.size(), 2u); // VP8, VP9 |
| EXPECT_TRUE(CompareCodecs(video_codecs_vpx, codecs)); |
| |
| callee->SetRemoteDescription(std::move(offer)); |
| |
| auto recv_transceiver = callee->pc()->GetTransceivers().front(); |
| auto video_codecs_vp8_rtx = video_codecs; |
| it = std::remove_if(video_codecs_vp8_rtx.begin(), video_codecs_vp8_rtx.end(), |
| [](const webrtc::RtpCodecCapability& codec) { |
| bool r = codec.name != cricket::kVp8CodecName && |
| codec.name != cricket::kRtxCodecName; |
| return r; |
| }); |
| video_codecs_vp8_rtx.erase(it, video_codecs_vp8_rtx.end()); |
| EXPECT_EQ(video_codecs_vp8_rtx.size(), 2u); // VP8, RTX |
| recv_transceiver->SetCodecPreferences(video_codecs_vp8_rtx); |
| |
| auto answer = callee->CreateAnswerAndSetAsLocal(); |
| |
| auto recv_codecs = answer->description() |
| ->contents()[0] |
| .media_description() |
| ->as_video() |
| ->codecs(); |
| EXPECT_EQ(recv_codecs.size(), 1u); // VP8 |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesVideoCodecsNegotiationReverseOrder) { |
| auto caller_fake_engine = std::make_unique<FakeMediaEngine>(); |
| auto caller_video_codecs = caller_fake_engine->video().send_codecs(); |
| caller_video_codecs.push_back(cricket::CreateVideoCodec( |
| caller_video_codecs.back().id + 1, cricket::kVp8CodecName)); |
| caller_video_codecs.push_back(cricket::CreateVideoCodec( |
| caller_video_codecs.back().id + 1, cricket::kRtxCodecName)); |
| caller_video_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = |
| std::to_string(caller_video_codecs.back().id - 1); |
| caller_video_codecs.push_back(cricket::CreateVideoCodec( |
| caller_video_codecs.back().id + 1, cricket::kVp9CodecName)); |
| caller_video_codecs.push_back(cricket::CreateVideoCodec( |
| caller_video_codecs.back().id + 1, cricket::kRtxCodecName)); |
| caller_video_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = |
| std::to_string(caller_video_codecs.back().id - 1); |
| caller_fake_engine->SetVideoCodecs(caller_video_codecs); |
| |
| auto callee_fake_engine = std::make_unique<FakeMediaEngine>(); |
| callee_fake_engine->SetVideoCodecs(caller_video_codecs); |
| |
| auto caller = CreatePeerConnectionWithVideo(std::move(caller_fake_engine)); |
| auto callee = CreatePeerConnection(std::move(callee_fake_engine)); |
| |
| auto video_codecs = caller->pc_factory() |
| ->GetRtpSenderCapabilities(cricket::MEDIA_TYPE_VIDEO) |
| .codecs; |
| |
| auto send_transceiver = caller->pc()->GetTransceivers().front(); |
| |
| auto video_codecs_vpx = video_codecs; |
| auto it = std::remove_if(video_codecs_vpx.begin(), video_codecs_vpx.end(), |
| [](const webrtc::RtpCodecCapability& codec) { |
| return codec.name != cricket::kVp8CodecName && |
| codec.name != cricket::kVp9CodecName; |
| }); |
| video_codecs_vpx.erase(it, video_codecs_vpx.end()); |
| EXPECT_EQ(video_codecs_vpx.size(), 2u); // VP8, VP9 |
| EXPECT_TRUE(send_transceiver->SetCodecPreferences(video_codecs_vpx).ok()); |
| |
| auto video_codecs_vpx_reverse = video_codecs_vpx; |
| absl::c_reverse(video_codecs_vpx_reverse); |
| |
| auto offer = caller->CreateOfferAndSetAsLocal(); |
| auto codecs = offer->description() |
| ->contents()[0] |
| .media_description() |
| ->as_video() |
| ->codecs(); |
| EXPECT_EQ(codecs.size(), 2u); // VP9, VP8 |
| EXPECT_TRUE(CompareCodecs(video_codecs_vpx, codecs)); |
| |
| callee->SetRemoteDescription(std::move(offer)); |
| |
| auto recv_transceiver = callee->pc()->GetTransceivers().front(); |
| recv_transceiver->SetCodecPreferences(video_codecs_vpx_reverse); |
| |
| auto answer = callee->CreateAnswerAndSetAsLocal(); |
| |
| auto recv_codecs = answer->description() |
| ->contents()[0] |
| .media_description() |
| ->as_video() |
| ->codecs(); |
| |
| EXPECT_TRUE(CompareCodecs(video_codecs_vpx_reverse, recv_codecs)); |
| } |
| |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesVoiceActivityDetection) { |
| auto fake_engine = std::make_unique<FakeMediaEngine>(); |
| AddComfortNoiseCodecsToSend(fake_engine.get()); |
| auto caller = CreatePeerConnectionWithAudio(std::move(fake_engine)); |
| |
| RTCOfferAnswerOptions options; |
| auto offer = caller->CreateOffer(options); |
| EXPECT_TRUE(HasAnyComfortNoiseCodecs(offer->description())); |
| |
| auto transceiver = caller->pc()->GetTransceivers().front(); |
| auto capabilities = caller->pc_factory()->GetRtpSenderCapabilities( |
| cricket::MediaType::MEDIA_TYPE_AUDIO); |
| EXPECT_TRUE(transceiver->SetCodecPreferences(capabilities.codecs).ok()); |
| |
| options.voice_activity_detection = false; |
| offer = caller->CreateOffer(options); |
| EXPECT_FALSE(HasAnyComfortNoiseCodecs(offer->description())); |
| } |
| |
| // If the "default" payload types of audio/video codecs are the same, and |
| // audio/video are bundled (as is the default), payload types should be |
| // remapped to avoid conflict, as normally happens without using |
| // SetCodecPreferences. |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesAvoidsPayloadTypeConflictInOffer) { |
| auto fake_engine = std::make_unique<cricket::FakeMediaEngine>(); |
| |
| std::vector<cricket::AudioCodec> audio_codecs; |
| audio_codecs.emplace_back(100, "foo", 0, 0, 1); |
| audio_codecs.emplace_back(101, cricket::kRtxCodecName, 0, 0, 1); |
| audio_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = "100"; |
| fake_engine->SetAudioCodecs(audio_codecs); |
| |
| std::vector<cricket::VideoCodec> video_codecs; |
| video_codecs.emplace_back(100, "bar"); |
| video_codecs.emplace_back(101, cricket::kRtxCodecName); |
| video_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = "100"; |
| fake_engine->SetVideoCodecs(video_codecs); |
| |
| auto caller = CreatePeerConnectionWithAudioVideo(std::move(fake_engine)); |
| auto transceivers = caller->pc()->GetTransceivers(); |
| ASSERT_EQ(2u, transceivers.size()); |
| |
| auto audio_transceiver = caller->pc()->GetTransceivers()[0]; |
| auto capabilities = caller->pc_factory()->GetRtpSenderCapabilities( |
| cricket::MediaType::MEDIA_TYPE_AUDIO); |
| EXPECT_TRUE(audio_transceiver->SetCodecPreferences(capabilities.codecs).ok()); |
| |
| auto video_transceiver = caller->pc()->GetTransceivers()[1]; |
| capabilities = caller->pc_factory()->GetRtpSenderCapabilities( |
| cricket::MediaType::MEDIA_TYPE_VIDEO); |
| EXPECT_TRUE(video_transceiver->SetCodecPreferences(capabilities.codecs).ok()); |
| |
| RTCOfferAnswerOptions options; |
| auto offer = caller->CreateOffer(options); |
| EXPECT_FALSE(HasPayloadTypeConflict(offer->description())); |
| // Sanity check that we got the primary codec and RTX. |
| EXPECT_EQ(2u, cricket::GetFirstAudioContentDescription(offer->description()) |
| ->codecs() |
| .size()); |
| EXPECT_EQ(2u, cricket::GetFirstVideoContentDescription(offer->description()) |
| ->codecs() |
| .size()); |
| } |
| |
| // Same as above, but preferences set for the answer. |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesAvoidsPayloadTypeConflictInAnswer) { |
| auto fake_engine = std::make_unique<cricket::FakeMediaEngine>(); |
| |
| std::vector<cricket::AudioCodec> audio_codecs; |
| audio_codecs.emplace_back(100, "foo", 0, 0, 1); |
| audio_codecs.emplace_back(101, cricket::kRtxCodecName, 0, 0, 1); |
| audio_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = "100"; |
| fake_engine->SetAudioCodecs(audio_codecs); |
| |
| std::vector<cricket::VideoCodec> video_codecs; |
| video_codecs.emplace_back(100, "bar"); |
| video_codecs.emplace_back(101, cricket::kRtxCodecName); |
| video_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = "100"; |
| fake_engine->SetVideoCodecs(video_codecs); |
| |
| auto caller = CreatePeerConnectionWithAudioVideo(std::move(fake_engine)); |
| |
| RTCOfferAnswerOptions options; |
| caller->SetRemoteDescription(caller->CreateOffer(options)); |
| |
| auto transceivers = caller->pc()->GetTransceivers(); |
| ASSERT_EQ(2u, transceivers.size()); |
| |
| auto audio_transceiver = caller->pc()->GetTransceivers()[0]; |
| auto capabilities = caller->pc_factory()->GetRtpSenderCapabilities( |
| cricket::MediaType::MEDIA_TYPE_AUDIO); |
| EXPECT_TRUE(audio_transceiver->SetCodecPreferences(capabilities.codecs).ok()); |
| |
| auto video_transceiver = caller->pc()->GetTransceivers()[1]; |
| capabilities = caller->pc_factory()->GetRtpSenderCapabilities( |
| cricket::MediaType::MEDIA_TYPE_VIDEO); |
| EXPECT_TRUE(video_transceiver->SetCodecPreferences(capabilities.codecs).ok()); |
| |
| auto answer = caller->CreateAnswer(options); |
| |
| EXPECT_FALSE(HasPayloadTypeConflict(answer->description())); |
| // Sanity check that we got the primary codec and RTX. |
| EXPECT_EQ(2u, cricket::GetFirstAudioContentDescription(answer->description()) |
| ->codecs() |
| .size()); |
| EXPECT_EQ(2u, cricket::GetFirstVideoContentDescription(answer->description()) |
| ->codecs() |
| .size()); |
| } |
| |
| // Same as above, but preferences set for a subsequent offer. |
| TEST_F(PeerConnectionMediaTestUnifiedPlan, |
| SetCodecPreferencesAvoidsPayloadTypeConflictInSubsequentOffer) { |
| auto fake_engine = std::make_unique<cricket::FakeMediaEngine>(); |
| |
| std::vector<cricket::AudioCodec> audio_codecs; |
| audio_codecs.emplace_back(100, "foo", 0, 0, 1); |
| audio_codecs.emplace_back(101, cricket::kRtxCodecName, 0, 0, 1); |
| audio_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = "100"; |
| fake_engine->SetAudioCodecs(audio_codecs); |
| |
| std::vector<cricket::VideoCodec> video_codecs; |
| video_codecs.emplace_back(100, "bar"); |
| video_codecs.emplace_back(101, cricket::kRtxCodecName); |
| video_codecs.back().params[cricket::kCodecParamAssociatedPayloadType] = "100"; |
| fake_engine->SetVideoCodecs(video_codecs); |
| |
| auto caller = CreatePeerConnectionWithAudioVideo(std::move(fake_engine)); |
| |
| RTCOfferAnswerOptions options; |
| caller->SetRemoteDescription(caller->CreateOffer(options)); |
| caller->SetLocalDescription(caller->CreateAnswer(options)); |
| |
| auto transceivers = caller->pc()->GetTransceivers(); |
| ASSERT_EQ(2u, transceivers.size()); |
| |
| auto audio_transceiver = caller->pc()->GetTransceivers()[0]; |
| auto capabilities = caller->pc_factory()->GetRtpSenderCapabilities( |
| cricket::MediaType::MEDIA_TYPE_AUDIO); |
| EXPECT_TRUE(audio_transceiver->SetCodecPreferences(capabilities.codecs).ok()); |
| |
| auto video_transceiver = caller->pc()->GetTransceivers()[1]; |
| capabilities = caller->pc_factory()->GetRtpSenderCapabilities( |
| cricket::MediaType::MEDIA_TYPE_VIDEO); |
| EXPECT_TRUE(video_transceiver->SetCodecPreferences(capabilities.codecs).ok()); |
| |
| auto reoffer = caller->CreateOffer(options); |
| ASSERT_THAT(reoffer, NotNull()); |
| |
| EXPECT_FALSE(HasPayloadTypeConflict(reoffer->description())); |
| // Sanity check that we got the primary codec and RTX. |
| EXPECT_EQ(2u, cricket::GetFirstAudioContentDescription(reoffer->description()) |
| ->codecs() |
| .size()); |
| EXPECT_EQ(2u, cricket::GetFirstVideoContentDescription(reoffer->description()) |
| ->codecs() |
| .size()); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(PeerConnectionMediaTest, |
| PeerConnectionMediaTest, |
| Values(SdpSemantics::kPlanB_DEPRECATED, |
| SdpSemantics::kUnifiedPlan)); |
| |
| } // namespace webrtc |
