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/*
* libjingle
* Copyright 2004--2011 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "talk/app/webrtc/peerconnectionfactory.h"
#include "talk/app/webrtc/audiotrack.h"
#include "talk/app/webrtc/dtlsidentityservice.h"
#include "talk/app/webrtc/dtlsidentitystore.h"
#include "talk/app/webrtc/localaudiosource.h"
#include "talk/app/webrtc/mediastreamproxy.h"
#include "talk/app/webrtc/mediastreamtrackproxy.h"
#include "talk/app/webrtc/peerconnection.h"
#include "talk/app/webrtc/peerconnectionfactoryproxy.h"
#include "talk/app/webrtc/peerconnectionproxy.h"
#include "talk/app/webrtc/portallocatorfactory.h"
#include "talk/app/webrtc/videosource.h"
#include "talk/app/webrtc/videosourceproxy.h"
#include "talk/app/webrtc/videotrack.h"
#include "talk/media/devices/dummydevicemanager.h"
#include "talk/media/webrtc/webrtcmediaengine.h"
#include "talk/media/webrtc/webrtcvideodecoderfactory.h"
#include "talk/media/webrtc/webrtcvideoencoderfactory.h"
#include "webrtc/base/bind.h"
#include "webrtc/modules/audio_device/include/audio_device.h"
namespace webrtc {
rtc::scoped_refptr<PeerConnectionFactoryInterface>
CreatePeerConnectionFactory() {
rtc::scoped_refptr<PeerConnectionFactory> pc_factory(
new rtc::RefCountedObject<PeerConnectionFactory>());
// Call Initialize synchronously but make sure its executed on
// |signaling_thread|.
MethodCall0<PeerConnectionFactory, bool> call(
pc_factory.get(),
&PeerConnectionFactory::Initialize);
bool result = call.Marshal(pc_factory->signaling_thread());
if (!result) {
return NULL;
}
return PeerConnectionFactoryProxy::Create(pc_factory->signaling_thread(),
pc_factory);
}
rtc::scoped_refptr<PeerConnectionFactoryInterface>
CreatePeerConnectionFactory(
rtc::Thread* worker_thread,
rtc::Thread* signaling_thread,
AudioDeviceModule* default_adm,
cricket::WebRtcVideoEncoderFactory* encoder_factory,
cricket::WebRtcVideoDecoderFactory* decoder_factory) {
rtc::scoped_refptr<PeerConnectionFactory> pc_factory(
new rtc::RefCountedObject<PeerConnectionFactory>(worker_thread,
signaling_thread,
default_adm,
encoder_factory,
decoder_factory));
// Call Initialize synchronously but make sure its executed on
// |signaling_thread|.
MethodCall0<PeerConnectionFactory, bool> call(
pc_factory.get(),
&PeerConnectionFactory::Initialize);
bool result = call.Marshal(signaling_thread);
if (!result) {
return NULL;
}
return PeerConnectionFactoryProxy::Create(signaling_thread, pc_factory);
}
PeerConnectionFactory::PeerConnectionFactory()
: owns_ptrs_(true),
wraps_current_thread_(false),
signaling_thread_(rtc::ThreadManager::Instance()->CurrentThread()),
worker_thread_(new rtc::Thread) {
if (!signaling_thread_) {
signaling_thread_ = rtc::ThreadManager::Instance()->WrapCurrentThread();
wraps_current_thread_ = true;
}
worker_thread_->Start();
}
PeerConnectionFactory::PeerConnectionFactory(
rtc::Thread* worker_thread,
rtc::Thread* signaling_thread,
AudioDeviceModule* default_adm,
cricket::WebRtcVideoEncoderFactory* video_encoder_factory,
cricket::WebRtcVideoDecoderFactory* video_decoder_factory)
: owns_ptrs_(false),
wraps_current_thread_(false),
signaling_thread_(signaling_thread),
worker_thread_(worker_thread),
default_adm_(default_adm),
video_encoder_factory_(video_encoder_factory),
video_decoder_factory_(video_decoder_factory) {
ASSERT(worker_thread != NULL);
ASSERT(signaling_thread != NULL);
// TODO: Currently there is no way creating an external adm in
// libjingle source tree. So we can 't currently assert if this is NULL.
// ASSERT(default_adm != NULL);
}
PeerConnectionFactory::~PeerConnectionFactory() {
DCHECK(signaling_thread_->IsCurrent());
channel_manager_.reset(NULL);
default_allocator_factory_ = NULL;
// Make sure |worker_thread_| and |signaling_thread_| outlive
// |dtls_identity_store_|.
dtls_identity_store_.reset(NULL);
if (owns_ptrs_) {
if (wraps_current_thread_)
rtc::ThreadManager::Instance()->UnwrapCurrentThread();
delete worker_thread_;
}
}
bool PeerConnectionFactory::Initialize() {
DCHECK(signaling_thread_->IsCurrent());
rtc::InitRandom(rtc::Time());
default_allocator_factory_ = PortAllocatorFactory::Create(worker_thread_);
if (!default_allocator_factory_)
return false;
cricket::DummyDeviceManager* device_manager(
new cricket::DummyDeviceManager());
// TODO: Need to make sure only one VoE is created inside
// WebRtcMediaEngine.
cricket::MediaEngineInterface* media_engine =
worker_thread_->Invoke<cricket::MediaEngineInterface*>(rtc::Bind(
&PeerConnectionFactory::CreateMediaEngine_w, this));
channel_manager_.reset(new cricket::ChannelManager(
media_engine, device_manager, worker_thread_));
channel_manager_->SetVideoRtxEnabled(true);
if (!channel_manager_->Init()) {
return false;
}
dtls_identity_store_.reset(
new DtlsIdentityStore(signaling_thread_, worker_thread_));
dtls_identity_store_->Initialize();
return true;
}
rtc::scoped_refptr<AudioSourceInterface>
PeerConnectionFactory::CreateAudioSource(
const MediaConstraintsInterface* constraints) {
DCHECK(signaling_thread_->IsCurrent());
rtc::scoped_refptr<LocalAudioSource> source(
LocalAudioSource::Create(options_, constraints));
return source;
}
rtc::scoped_refptr<VideoSourceInterface>
PeerConnectionFactory::CreateVideoSource(
cricket::VideoCapturer* capturer,
const MediaConstraintsInterface* constraints) {
DCHECK(signaling_thread_->IsCurrent());
rtc::scoped_refptr<VideoSource> source(
VideoSource::Create(channel_manager_.get(), capturer, constraints));
return VideoSourceProxy::Create(signaling_thread_, source);
}
bool PeerConnectionFactory::StartAecDump(rtc::PlatformFile file) {
DCHECK(signaling_thread_->IsCurrent());
return channel_manager_->StartAecDump(file);
}
rtc::scoped_refptr<PeerConnectionInterface>
PeerConnectionFactory::CreatePeerConnection(
const PeerConnectionInterface::RTCConfiguration& configuration,
const MediaConstraintsInterface* constraints,
PortAllocatorFactoryInterface* allocator_factory,
DTLSIdentityServiceInterface* dtls_identity_service,
PeerConnectionObserver* observer) {
DCHECK(signaling_thread_->IsCurrent());
DCHECK(allocator_factory || default_allocator_factory_);
if (!dtls_identity_service) {
dtls_identity_service = new DtlsIdentityService(dtls_identity_store_.get());
}
PortAllocatorFactoryInterface* chosen_allocator_factory =
allocator_factory ? allocator_factory : default_allocator_factory_.get();
chosen_allocator_factory->SetNetworkIgnoreMask(options_.network_ignore_mask);
rtc::scoped_refptr<PeerConnection> pc(
new rtc::RefCountedObject<PeerConnection>(this));
if (!pc->Initialize(
configuration,
constraints,
chosen_allocator_factory,
dtls_identity_service,
observer)) {
return NULL;
}
return PeerConnectionProxy::Create(signaling_thread(), pc);
}
rtc::scoped_refptr<MediaStreamInterface>
PeerConnectionFactory::CreateLocalMediaStream(const std::string& label) {
DCHECK(signaling_thread_->IsCurrent());
return MediaStreamProxy::Create(signaling_thread_,
MediaStream::Create(label));
}
rtc::scoped_refptr<VideoTrackInterface>
PeerConnectionFactory::CreateVideoTrack(
const std::string& id,
VideoSourceInterface* source) {
DCHECK(signaling_thread_->IsCurrent());
rtc::scoped_refptr<VideoTrackInterface> track(
VideoTrack::Create(id, source));
return VideoTrackProxy::Create(signaling_thread_, track);
}
rtc::scoped_refptr<AudioTrackInterface>
PeerConnectionFactory::CreateAudioTrack(const std::string& id,
AudioSourceInterface* source) {
DCHECK(signaling_thread_->IsCurrent());
rtc::scoped_refptr<AudioTrackInterface> track(
AudioTrack::Create(id, source));
return AudioTrackProxy::Create(signaling_thread_, track);
}
cricket::ChannelManager* PeerConnectionFactory::channel_manager() {
DCHECK(signaling_thread_->IsCurrent());
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() {
DCHECK(signaling_thread_->IsCurrent());
return worker_thread_;
}
cricket::MediaEngineInterface* PeerConnectionFactory::CreateMediaEngine_w() {
ASSERT(worker_thread_ == rtc::Thread::Current());
return cricket::WebRtcMediaEngineFactory::Create(
default_adm_.get(), NULL, video_encoder_factory_.get(),
video_decoder_factory_.get());
}
} // namespace webrtc