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/*
* 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 "webrtc/pc/peerconnectionfactory.h"
#include <utility>
#include "webrtc/api/mediaconstraintsinterface.h"
#include "webrtc/api/mediastreamproxy.h"
#include "webrtc/api/mediastreamtrackproxy.h"
#include "webrtc/api/peerconnectionfactoryproxy.h"
#include "webrtc/api/peerconnectionproxy.h"
#include "webrtc/api/videosourceproxy.h"
#include "webrtc/logging/rtc_event_log/rtc_event_log.h"
#include "webrtc/rtc_base/bind.h"
#include "webrtc/rtc_base/checks.h"
#include "webrtc/rtc_base/ptr_util.h"
// Adding 'nogncheck' to disable the gn include headers check to support modular
// WebRTC build targets.
// TODO(zhihuang): This wouldn't be necessary if the interface and
// implementation of the media engine were in separate build targets.
#include "webrtc/media/engine/webrtcmediaengine.h" // nogncheck
#include "webrtc/media/engine/webrtcvideodecoderfactory.h" // nogncheck
#include "webrtc/media/engine/webrtcvideoencoderfactory.h" // nogncheck
#include "webrtc/modules/audio_device/include/audio_device.h" // nogncheck
#include "webrtc/p2p/base/basicpacketsocketfactory.h"
#include "webrtc/p2p/client/basicportallocator.h"
#include "webrtc/pc/audiotrack.h"
#include "webrtc/pc/localaudiosource.h"
#include "webrtc/pc/mediastream.h"
#include "webrtc/pc/peerconnection.h"
#include "webrtc/pc/videocapturertracksource.h"
#include "webrtc/pc/videotrack.h"
namespace webrtc {
rtc::scoped_refptr<PeerConnectionFactoryInterface>
CreateModularPeerConnectionFactory(
rtc::Thread* network_thread,
rtc::Thread* worker_thread,
rtc::Thread* signaling_thread,
AudioDeviceModule* default_adm,
rtc::scoped_refptr<AudioEncoderFactory> audio_encoder_factory,
rtc::scoped_refptr<AudioDecoderFactory> audio_decoder_factory,
cricket::WebRtcVideoEncoderFactory* video_encoder_factory,
cricket::WebRtcVideoDecoderFactory* video_decoder_factory,
rtc::scoped_refptr<AudioMixer> audio_mixer,
std::unique_ptr<cricket::MediaEngineInterface> media_engine,
std::unique_ptr<CallFactoryInterface> call_factory,
std::unique_ptr<RtcEventLogFactoryInterface> event_log_factory) {
rtc::scoped_refptr<PeerConnectionFactory> pc_factory(
new rtc::RefCountedObject<PeerConnectionFactory>(
network_thread, worker_thread, signaling_thread, default_adm,
audio_encoder_factory, audio_decoder_factory, video_encoder_factory,
video_decoder_factory, audio_mixer, std::move(media_engine),
std::move(call_factory), std::move(event_log_factory)));
// Call Initialize synchronously but make sure it is executed on
// |signaling_thread|.
MethodCall0<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(
rtc::Thread* network_thread,
rtc::Thread* worker_thread,
rtc::Thread* signaling_thread,
AudioDeviceModule* default_adm,
rtc::scoped_refptr<webrtc::AudioEncoderFactory> audio_encoder_factory,
rtc::scoped_refptr<webrtc::AudioDecoderFactory> audio_decoder_factory,
cricket::WebRtcVideoEncoderFactory* video_encoder_factory,
cricket::WebRtcVideoDecoderFactory* video_decoder_factory,
rtc::scoped_refptr<AudioMixer> audio_mixer,
std::unique_ptr<cricket::MediaEngineInterface> media_engine,
std::unique_ptr<webrtc::CallFactoryInterface> call_factory,
std::unique_ptr<RtcEventLogFactoryInterface> event_log_factory)
: wraps_current_thread_(false),
network_thread_(network_thread),
worker_thread_(worker_thread),
signaling_thread_(signaling_thread),
default_adm_(default_adm),
audio_encoder_factory_(audio_encoder_factory),
audio_decoder_factory_(audio_decoder_factory),
video_encoder_factory_(video_encoder_factory),
video_decoder_factory_(video_decoder_factory),
external_audio_mixer_(audio_mixer),
media_engine_(std::move(media_engine)),
call_factory_(std::move(call_factory)),
event_log_factory_(std::move(event_log_factory)) {
if (!network_thread_) {
owned_network_thread_ = rtc::Thread::CreateWithSocketServer();
owned_network_thread_->Start();
network_thread_ = owned_network_thread_.get();
}
if (!worker_thread_) {
owned_worker_thread_ = rtc::Thread::Create();
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;
}
}
// TODO: Currently there is no way creating an external adm in
// libjingle source tree. So we can 't currently assert if this is NULL.
// RTC_DCHECK(default_adm != NULL);
}
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_.reset(new cricket::ChannelManager(
std::move(media_engine_), worker_thread_, network_thread_));
channel_manager_->SetVideoRtxEnabled(true);
if (!channel_manager_->Init()) {
return false;
}
return true;
}
void PeerConnectionFactory::SetOptions(const Options& options) {
options_ = options;
}
rtc::scoped_refptr<AudioSourceInterface>
PeerConnectionFactory::CreateAudioSource(
const MediaConstraintsInterface* constraints) {
RTC_DCHECK(signaling_thread_->IsCurrent());
rtc::scoped_refptr<LocalAudioSource> source(
LocalAudioSource::Create(constraints));
return source;
}
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;
}
rtc::scoped_refptr<VideoTrackSourceInterface>
PeerConnectionFactory::CreateVideoSource(
std::unique_ptr<cricket::VideoCapturer> capturer,
const MediaConstraintsInterface* constraints) {
RTC_DCHECK(signaling_thread_->IsCurrent());
rtc::scoped_refptr<VideoTrackSourceInterface> source(
VideoCapturerTrackSource::Create(worker_thread_, std::move(capturer),
constraints, false));
return VideoTrackSourceProxy::Create(signaling_thread_, worker_thread_,
source);
}
rtc::scoped_refptr<VideoTrackSourceInterface>
PeerConnectionFactory::CreateVideoSource(
std::unique_ptr<cricket::VideoCapturer> capturer) {
RTC_DCHECK(signaling_thread_->IsCurrent());
rtc::scoped_refptr<VideoTrackSourceInterface> source(
VideoCapturerTrackSource::Create(worker_thread_, std::move(capturer),
false));
return VideoTrackSourceProxy::Create(signaling_thread_, worker_thread_,
source);
}
bool PeerConnectionFactory::StartAecDump(rtc::PlatformFile file,
int64_t max_size_bytes) {
RTC_DCHECK(signaling_thread_->IsCurrent());
return channel_manager_->StartAecDump(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_in,
const MediaConstraintsInterface* constraints,
std::unique_ptr<cricket::PortAllocator> allocator,
std::unique_ptr<rtc::RTCCertificateGeneratorInterface> cert_generator,
PeerConnectionObserver* observer) {
RTC_DCHECK(signaling_thread_->IsCurrent());
// We merge constraints and configuration into a single configuration.
PeerConnectionInterface::RTCConfiguration configuration = configuration_in;
CopyConstraintsIntoRtcConfiguration(constraints, &configuration);
return CreatePeerConnection(configuration, std::move(allocator),
std::move(cert_generator), observer);
}
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) {
RTC_DCHECK(signaling_thread_->IsCurrent());
if (!cert_generator.get()) {
// No certificate generator specified, use the default one.
cert_generator.reset(
new rtc::RTCCertificateGenerator(signaling_thread_, network_thread_));
}
if (!allocator) {
allocator.reset(new cricket::BasicPortAllocator(
default_network_manager_.get(), default_socket_factory_.get()));
}
network_thread_->Invoke<void>(
RTC_FROM_HERE, rtc::Bind(&cricket::PortAllocator::SetNetworkIgnoreMask,
allocator.get(), options_.network_ignore_mask));
std::unique_ptr<RtcEventLog> event_log =
event_log_factory_ ? event_log_factory_->CreateRtcEventLog()
: rtc::MakeUnique<RtcEventLogNullImpl>();
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)));
if (!pc->Initialize(configuration, std::move(allocator),
std::move(cert_generator), observer)) {
return nullptr;
}
return PeerConnectionProxy::Create(signaling_thread(), pc);
}
rtc::scoped_refptr<MediaStreamInterface>
PeerConnectionFactory::CreateLocalMediaStream(const std::string& label) {
RTC_DCHECK(signaling_thread_->IsCurrent());
return MediaStreamProxy::Create(signaling_thread_,
MediaStream::Create(label));
}
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);
}
cricket::TransportController* PeerConnectionFactory::CreateTransportController(
cricket::PortAllocator* port_allocator,
bool redetermine_role_on_ice_restart) {
RTC_DCHECK(signaling_thread_->IsCurrent());
return new cricket::TransportController(
signaling_thread_, network_thread_, port_allocator,
redetermine_role_on_ice_restart, options_.crypto_options);
}
cricket::ChannelManager* PeerConnectionFactory::channel_manager() {
return channel_manager_.get();
}
rtc::Thread* PeerConnectionFactory::signaling_thread() {
// This method can be called on a different thread when the factory is
// created in CreatePeerConnectionFactory().
return signaling_thread_;
}
rtc::Thread* PeerConnectionFactory::worker_thread() {
return worker_thread_;
}
rtc::Thread* PeerConnectionFactory::network_thread() {
return network_thread_;
}
std::unique_ptr<Call> PeerConnectionFactory::CreateCall_w(
RtcEventLog* event_log) {
const int kMinBandwidthBps = 30000;
const int kStartBandwidthBps = 300000;
const int kMaxBandwidthBps = 2000000;
webrtc::Call::Config call_config(event_log);
if (!channel_manager_->media_engine() || !call_factory_) {
return nullptr;
}
call_config.audio_state = channel_manager_->media_engine()->GetAudioState();
call_config.bitrate_config.min_bitrate_bps = kMinBandwidthBps;
call_config.bitrate_config.start_bitrate_bps = kStartBandwidthBps;
call_config.bitrate_config.max_bitrate_bps = kMaxBandwidthBps;
return std::unique_ptr<Call>(call_factory_->CreateCall(call_config));
}
} // namespace webrtc