| /* |
| * Copyright 2004 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "pc/peer_connection_factory.h" |
| |
| #include <memory> |
| #include <utility> |
| #include <vector> |
| |
| #include "api/fec_controller.h" |
| #include "api/media_stream_proxy.h" |
| #include "api/media_stream_track_proxy.h" |
| #include "api/network_state_predictor.h" |
| #include "api/peer_connection_factory_proxy.h" |
| #include "api/peer_connection_proxy.h" |
| #include "api/rtc_event_log/rtc_event_log.h" |
| #include "api/transport/field_trial_based_config.h" |
| #include "api/transport/media/media_transport_interface.h" |
| #include "api/turn_customizer.h" |
| #include "api/units/data_rate.h" |
| #include "api/video_track_source_proxy.h" |
| #include "media/base/rtp_data_engine.h" |
| #include "media/sctp/sctp_transport.h" |
| #include "p2p/base/basic_packet_socket_factory.h" |
| #include "p2p/base/default_ice_transport_factory.h" |
| #include "p2p/client/basic_port_allocator.h" |
| #include "pc/audio_track.h" |
| #include "pc/local_audio_source.h" |
| #include "pc/media_stream.h" |
| #include "pc/peer_connection.h" |
| #include "pc/rtp_parameters_conversion.h" |
| #include "pc/video_track.h" |
| #include "rtc_base/bind.h" |
| #include "rtc_base/checks.h" |
| #include "rtc_base/experiments/field_trial_parser.h" |
| #include "rtc_base/experiments/field_trial_units.h" |
| #include "rtc_base/numerics/safe_conversions.h" |
| #include "rtc_base/system/file_wrapper.h" |
| |
| namespace webrtc { |
| |
| rtc::scoped_refptr<PeerConnectionFactoryInterface> |
| CreateModularPeerConnectionFactory( |
| PeerConnectionFactoryDependencies dependencies) { |
| rtc::scoped_refptr<PeerConnectionFactory> pc_factory( |
| new rtc::RefCountedObject<PeerConnectionFactory>( |
| std::move(dependencies))); |
| // Call Initialize synchronously but make sure it is executed on |
| // |signaling_thread|. |
| MethodCall<PeerConnectionFactory, bool> call( |
| pc_factory.get(), &PeerConnectionFactory::Initialize); |
| bool result = call.Marshal(RTC_FROM_HERE, pc_factory->signaling_thread()); |
| |
| if (!result) { |
| return nullptr; |
| } |
| return PeerConnectionFactoryProxy::Create(pc_factory->signaling_thread(), |
| pc_factory); |
| } |
| |
| PeerConnectionFactory::PeerConnectionFactory( |
| PeerConnectionFactoryDependencies dependencies) |
| : wraps_current_thread_(false), |
| network_thread_(dependencies.network_thread), |
| worker_thread_(dependencies.worker_thread), |
| signaling_thread_(dependencies.signaling_thread), |
| task_queue_factory_(std::move(dependencies.task_queue_factory)), |
| media_engine_(std::move(dependencies.media_engine)), |
| call_factory_(std::move(dependencies.call_factory)), |
| event_log_factory_(std::move(dependencies.event_log_factory)), |
| fec_controller_factory_(std::move(dependencies.fec_controller_factory)), |
| network_state_predictor_factory_( |
| std::move(dependencies.network_state_predictor_factory)), |
| injected_network_controller_factory_( |
| std::move(dependencies.network_controller_factory)), |
| media_transport_factory_(std::move(dependencies.media_transport_factory)), |
| neteq_factory_(std::move(dependencies.neteq_factory)), |
| trials_(dependencies.trials ? std::move(dependencies.trials) |
| : std::make_unique<FieldTrialBasedConfig>()) { |
| if (!network_thread_) { |
| owned_network_thread_ = rtc::Thread::CreateWithSocketServer(); |
| owned_network_thread_->SetName("pc_network_thread", nullptr); |
| owned_network_thread_->Start(); |
| network_thread_ = owned_network_thread_.get(); |
| } |
| |
| if (!worker_thread_) { |
| owned_worker_thread_ = rtc::Thread::Create(); |
| owned_worker_thread_->SetName("pc_worker_thread", nullptr); |
| owned_worker_thread_->Start(); |
| worker_thread_ = owned_worker_thread_.get(); |
| } |
| |
| if (!signaling_thread_) { |
| signaling_thread_ = rtc::Thread::Current(); |
| if (!signaling_thread_) { |
| // If this thread isn't already wrapped by an rtc::Thread, create a |
| // wrapper and own it in this class. |
| signaling_thread_ = rtc::ThreadManager::Instance()->WrapCurrentThread(); |
| wraps_current_thread_ = true; |
| } |
| } |
| } |
| |
| PeerConnectionFactory::~PeerConnectionFactory() { |
| RTC_DCHECK(signaling_thread_->IsCurrent()); |
| channel_manager_.reset(nullptr); |
| |
| // Make sure |worker_thread_| and |signaling_thread_| outlive |
| // |default_socket_factory_| and |default_network_manager_|. |
| default_socket_factory_ = nullptr; |
| default_network_manager_ = nullptr; |
| |
| if (wraps_current_thread_) |
| rtc::ThreadManager::Instance()->UnwrapCurrentThread(); |
| } |
| |
| bool PeerConnectionFactory::Initialize() { |
| RTC_DCHECK(signaling_thread_->IsCurrent()); |
| rtc::InitRandom(rtc::Time32()); |
| |
| default_network_manager_.reset(new rtc::BasicNetworkManager()); |
| if (!default_network_manager_) { |
| return false; |
| } |
| |
| default_socket_factory_.reset( |
| new rtc::BasicPacketSocketFactory(network_thread_)); |
| if (!default_socket_factory_) { |
| return false; |
| } |
| |
| channel_manager_ = std::make_unique<cricket::ChannelManager>( |
| std::move(media_engine_), std::make_unique<cricket::RtpDataEngine>(), |
| worker_thread_, network_thread_); |
| |
| channel_manager_->SetVideoRtxEnabled(true); |
| if (!channel_manager_->Init()) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| void PeerConnectionFactory::SetOptions(const Options& options) { |
| options_ = options; |
| } |
| |
| RtpCapabilities PeerConnectionFactory::GetRtpSenderCapabilities( |
| cricket::MediaType kind) const { |
| RTC_DCHECK_RUN_ON(signaling_thread_); |
| switch (kind) { |
| case cricket::MEDIA_TYPE_AUDIO: { |
| cricket::AudioCodecs cricket_codecs; |
| cricket::RtpHeaderExtensions cricket_extensions; |
| channel_manager_->GetSupportedAudioSendCodecs(&cricket_codecs); |
| channel_manager_->GetSupportedAudioRtpHeaderExtensions( |
| &cricket_extensions); |
| return ToRtpCapabilities(cricket_codecs, cricket_extensions); |
| } |
| case cricket::MEDIA_TYPE_VIDEO: { |
| cricket::VideoCodecs cricket_codecs; |
| cricket::RtpHeaderExtensions cricket_extensions; |
| channel_manager_->GetSupportedVideoCodecs(&cricket_codecs); |
| channel_manager_->GetSupportedVideoRtpHeaderExtensions( |
| &cricket_extensions); |
| return ToRtpCapabilities(cricket_codecs, cricket_extensions); |
| } |
| case cricket::MEDIA_TYPE_DATA: |
| return RtpCapabilities(); |
| } |
| // Not reached; avoids compile warning. |
| FATAL(); |
| } |
| |
| RtpCapabilities PeerConnectionFactory::GetRtpReceiverCapabilities( |
| cricket::MediaType kind) const { |
| RTC_DCHECK_RUN_ON(signaling_thread_); |
| switch (kind) { |
| case cricket::MEDIA_TYPE_AUDIO: { |
| cricket::AudioCodecs cricket_codecs; |
| cricket::RtpHeaderExtensions cricket_extensions; |
| channel_manager_->GetSupportedAudioReceiveCodecs(&cricket_codecs); |
| channel_manager_->GetSupportedAudioRtpHeaderExtensions( |
| &cricket_extensions); |
| return ToRtpCapabilities(cricket_codecs, cricket_extensions); |
| } |
| case cricket::MEDIA_TYPE_VIDEO: { |
| cricket::VideoCodecs cricket_codecs; |
| cricket::RtpHeaderExtensions cricket_extensions; |
| channel_manager_->GetSupportedVideoCodecs(&cricket_codecs); |
| channel_manager_->GetSupportedVideoRtpHeaderExtensions( |
| &cricket_extensions); |
| return ToRtpCapabilities(cricket_codecs, cricket_extensions); |
| } |
| case cricket::MEDIA_TYPE_DATA: |
| return RtpCapabilities(); |
| } |
| // Not reached; avoids compile warning. |
| FATAL(); |
| } |
| |
| rtc::scoped_refptr<AudioSourceInterface> |
| PeerConnectionFactory::CreateAudioSource(const cricket::AudioOptions& options) { |
| RTC_DCHECK(signaling_thread_->IsCurrent()); |
| rtc::scoped_refptr<LocalAudioSource> source( |
| LocalAudioSource::Create(&options)); |
| return source; |
| } |
| |
| bool PeerConnectionFactory::StartAecDump(FILE* file, int64_t max_size_bytes) { |
| RTC_DCHECK(signaling_thread_->IsCurrent()); |
| return channel_manager_->StartAecDump(FileWrapper(file), max_size_bytes); |
| } |
| |
| void PeerConnectionFactory::StopAecDump() { |
| RTC_DCHECK(signaling_thread_->IsCurrent()); |
| channel_manager_->StopAecDump(); |
| } |
| |
| rtc::scoped_refptr<PeerConnectionInterface> |
| PeerConnectionFactory::CreatePeerConnection( |
| const PeerConnectionInterface::RTCConfiguration& configuration, |
| std::unique_ptr<cricket::PortAllocator> allocator, |
| std::unique_ptr<rtc::RTCCertificateGeneratorInterface> cert_generator, |
| PeerConnectionObserver* observer) { |
| // Convert the legacy API into the new dependency structure. |
| PeerConnectionDependencies dependencies(observer); |
| dependencies.allocator = std::move(allocator); |
| dependencies.cert_generator = std::move(cert_generator); |
| // Pass that into the new API. |
| return CreatePeerConnection(configuration, std::move(dependencies)); |
| } |
| |
| rtc::scoped_refptr<PeerConnectionInterface> |
| PeerConnectionFactory::CreatePeerConnection( |
| const PeerConnectionInterface::RTCConfiguration& configuration, |
| PeerConnectionDependencies dependencies) { |
| RTC_DCHECK(signaling_thread_->IsCurrent()); |
| RTC_DCHECK(!(dependencies.allocator && dependencies.packet_socket_factory)) |
| << "You can't set both allocator and packet_socket_factory; " |
| "the former is going away (see bugs.webrtc.org/7447"; |
| |
| // Set internal defaults if optional dependencies are not set. |
| if (!dependencies.cert_generator) { |
| dependencies.cert_generator = |
| std::make_unique<rtc::RTCCertificateGenerator>(signaling_thread_, |
| network_thread_); |
| } |
| if (!dependencies.allocator) { |
| rtc::PacketSocketFactory* packet_socket_factory; |
| if (dependencies.packet_socket_factory) |
| packet_socket_factory = dependencies.packet_socket_factory.get(); |
| else |
| packet_socket_factory = default_socket_factory_.get(); |
| |
| network_thread_->Invoke<void>(RTC_FROM_HERE, [this, &configuration, |
| &dependencies, |
| &packet_socket_factory]() { |
| dependencies.allocator = std::make_unique<cricket::BasicPortAllocator>( |
| default_network_manager_.get(), packet_socket_factory, |
| configuration.turn_customizer); |
| }); |
| } |
| |
| if (!dependencies.ice_transport_factory) { |
| dependencies.ice_transport_factory = |
| std::make_unique<DefaultIceTransportFactory>(); |
| } |
| |
| // TODO(zstein): Once chromium injects its own AsyncResolverFactory, set |
| // |dependencies.async_resolver_factory| to a new |
| // |rtc::BasicAsyncResolverFactory| if no factory is provided. |
| |
| network_thread_->Invoke<void>( |
| RTC_FROM_HERE, |
| rtc::Bind(&cricket::PortAllocator::SetNetworkIgnoreMask, |
| dependencies.allocator.get(), options_.network_ignore_mask)); |
| |
| std::unique_ptr<RtcEventLog> event_log = |
| worker_thread_->Invoke<std::unique_ptr<RtcEventLog>>( |
| RTC_FROM_HERE, |
| rtc::Bind(&PeerConnectionFactory::CreateRtcEventLog_w, this)); |
| |
| std::unique_ptr<Call> call = worker_thread_->Invoke<std::unique_ptr<Call>>( |
| RTC_FROM_HERE, |
| rtc::Bind(&PeerConnectionFactory::CreateCall_w, this, event_log.get())); |
| |
| rtc::scoped_refptr<PeerConnection> pc( |
| new rtc::RefCountedObject<PeerConnection>(this, std::move(event_log), |
| std::move(call))); |
| ActionsBeforeInitializeForTesting(pc); |
| if (!pc->Initialize(configuration, std::move(dependencies))) { |
| return nullptr; |
| } |
| return PeerConnectionProxy::Create(signaling_thread(), pc); |
| } |
| |
| rtc::scoped_refptr<MediaStreamInterface> |
| PeerConnectionFactory::CreateLocalMediaStream(const std::string& stream_id) { |
| RTC_DCHECK(signaling_thread_->IsCurrent()); |
| return MediaStreamProxy::Create(signaling_thread_, |
| MediaStream::Create(stream_id)); |
| } |
| |
| rtc::scoped_refptr<VideoTrackInterface> PeerConnectionFactory::CreateVideoTrack( |
| const std::string& id, |
| VideoTrackSourceInterface* source) { |
| RTC_DCHECK(signaling_thread_->IsCurrent()); |
| rtc::scoped_refptr<VideoTrackInterface> track( |
| VideoTrack::Create(id, source, worker_thread_)); |
| return VideoTrackProxy::Create(signaling_thread_, worker_thread_, track); |
| } |
| |
| rtc::scoped_refptr<AudioTrackInterface> PeerConnectionFactory::CreateAudioTrack( |
| const std::string& id, |
| AudioSourceInterface* source) { |
| RTC_DCHECK(signaling_thread_->IsCurrent()); |
| rtc::scoped_refptr<AudioTrackInterface> track(AudioTrack::Create(id, source)); |
| return AudioTrackProxy::Create(signaling_thread_, track); |
| } |
| |
| std::unique_ptr<cricket::SctpTransportInternalFactory> |
| PeerConnectionFactory::CreateSctpTransportInternalFactory() { |
| #ifdef HAVE_SCTP |
| return std::make_unique<cricket::SctpTransportFactory>(network_thread()); |
| #else |
| return nullptr; |
| #endif |
| } |
| |
| cricket::ChannelManager* PeerConnectionFactory::channel_manager() { |
| return channel_manager_.get(); |
| } |
| |
| std::unique_ptr<RtcEventLog> PeerConnectionFactory::CreateRtcEventLog_w() { |
| RTC_DCHECK_RUN_ON(worker_thread_); |
| |
| auto encoding_type = RtcEventLog::EncodingType::Legacy; |
| if (IsTrialEnabled("WebRTC-RtcEventLogNewFormat")) |
| encoding_type = RtcEventLog::EncodingType::NewFormat; |
| return event_log_factory_ |
| ? event_log_factory_->CreateRtcEventLog(encoding_type) |
| : std::make_unique<RtcEventLogNull>(); |
| } |
| |
| std::unique_ptr<Call> PeerConnectionFactory::CreateCall_w( |
| RtcEventLog* event_log) { |
| RTC_DCHECK_RUN_ON(worker_thread_); |
| |
| webrtc::Call::Config call_config(event_log); |
| if (!channel_manager_->media_engine() || !call_factory_) { |
| return nullptr; |
| } |
| call_config.audio_state = |
| channel_manager_->media_engine()->voice().GetAudioState(); |
| |
| FieldTrialParameter<DataRate> min_bandwidth("min", DataRate::kbps(30)); |
| FieldTrialParameter<DataRate> start_bandwidth("start", DataRate::kbps(300)); |
| FieldTrialParameter<DataRate> max_bandwidth("max", DataRate::kbps(2000)); |
| ParseFieldTrial({&min_bandwidth, &start_bandwidth, &max_bandwidth}, |
| trials_->Lookup("WebRTC-PcFactoryDefaultBitrates")); |
| |
| call_config.bitrate_config.min_bitrate_bps = |
| rtc::saturated_cast<int>(min_bandwidth->bps()); |
| call_config.bitrate_config.start_bitrate_bps = |
| rtc::saturated_cast<int>(start_bandwidth->bps()); |
| call_config.bitrate_config.max_bitrate_bps = |
| rtc::saturated_cast<int>(max_bandwidth->bps()); |
| |
| call_config.fec_controller_factory = fec_controller_factory_.get(); |
| call_config.task_queue_factory = task_queue_factory_.get(); |
| call_config.network_state_predictor_factory = |
| network_state_predictor_factory_.get(); |
| call_config.neteq_factory = neteq_factory_.get(); |
| |
| if (IsTrialEnabled("WebRTC-Bwe-InjectedCongestionController")) { |
| RTC_LOG(LS_INFO) << "Using injected network controller factory"; |
| call_config.network_controller_factory = |
| injected_network_controller_factory_.get(); |
| } else { |
| RTC_LOG(LS_INFO) << "Using default network controller factory"; |
| } |
| |
| call_config.trials = trials_.get(); |
| |
| return std::unique_ptr<Call>(call_factory_->CreateCall(call_config)); |
| } |
| |
| bool PeerConnectionFactory::IsTrialEnabled(absl::string_view key) const { |
| RTC_DCHECK(trials_); |
| return trials_->Lookup(key).find("Enabled") == 0; |
| } |
| |
| } // namespace webrtc |