webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 160 insertions, 0 deletions

diff --git a/Source/WebCore/platform/mediastream/libwebrtc/LibWebRTCProvider.cpp b/Source/WebCore/platform/mediastream/libwebrtc/LibWebRTCProvider.cpp
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+++ b/Source/WebCore/platform/mediastream/libwebrtc/LibWebRTCProvider.cpp
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+/*
+ * Copyright (C) 2017 Apple Inc. All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``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 APPLE INC. OR ITS CONTRIBUTORS
+ * 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 "config.h"
+#include "LibWebRTCProvider.h"
+
+#if USE(LIBWEBRTC)
+
+#include "LibWebRTCAudioModule.h"
+#include <webrtc/api/peerconnectionfactory.h>
+#include <webrtc/api/peerconnectionfactoryproxy.h>
+#include <webrtc/base/physicalsocketserver.h>
+#include <webrtc/p2p/client/basicportallocator.h>
+#include <webrtc/sdk/objc/Framework/Classes/videotoolboxvideocodecfactory.h>
+#include <wtf/Function.h>
+#include <wtf/NeverDestroyed.h>
+
+namespace WebCore {
+
+struct PeerConnectionFactoryAndThreads : public rtc::MessageHandler {
+    std::unique_ptr<LibWebRTCAudioModule> audioDeviceModule;
+    std::unique_ptr<rtc::Thread> networkThread;
+    std::unique_ptr<rtc::Thread> signalingThread;
+    rtc::scoped_refptr<webrtc::PeerConnectionFactoryInterface> factory;
+    bool networkThreadWithSocketServer { false };
+private:
+    void OnMessage(rtc::Message*);
+};
+
+static inline PeerConnectionFactoryAndThreads& staticFactoryAndThreads()
+{
+    static NeverDestroyed<PeerConnectionFactoryAndThreads> factoryAndThreads;
+    return factoryAndThreads.get();
+}
+
+struct ThreadMessageData : public rtc::MessageData {
+    ThreadMessageData(Function<void()>&& callback)
+        : callback(WTFMove(callback))
+    { }
+    Function<void()> callback;
+};
+
+void PeerConnectionFactoryAndThreads::OnMessage(rtc::Message* message)
+{
+    ASSERT(message->message_id == 1);
+    static_cast<ThreadMessageData*>(message->pdata)->callback();
+}
+
+void LibWebRTCProvider::callOnWebRTCNetworkThread(Function<void()>&& callback)
+{
+    PeerConnectionFactoryAndThreads& threads = staticFactoryAndThreads();
+    threads.networkThread->Post(RTC_FROM_HERE, &threads, 1, new ThreadMessageData(WTFMove(callback)));
+}
+
+void LibWebRTCProvider::callOnWebRTCSignalingThread(Function<void()>&& callback)
+{
+    PeerConnectionFactoryAndThreads& threads = staticFactoryAndThreads();
+    threads.signalingThread->Post(RTC_FROM_HERE, &threads, 1, new ThreadMessageData(WTFMove(callback)));
+}
+
+static void initializePeerConnectionFactoryAndThreads()
+{
+    auto& factoryAndThreads = staticFactoryAndThreads();
+
+    ASSERT(!factoryAndThreads.factory);
+
+    auto thread = rtc::Thread::Create();
+    factoryAndThreads.networkThread = factoryAndThreads.networkThreadWithSocketServer ? rtc::Thread::CreateWithSocketServer() : rtc::Thread::Create();
+    bool result = factoryAndThreads.networkThread->Start();
+    ASSERT_UNUSED(result, result);
+
+    factoryAndThreads.signalingThread = rtc::Thread::Create();
+    result = factoryAndThreads.signalingThread->Start();
+    ASSERT(result);
+
+    factoryAndThreads.audioDeviceModule = std::make_unique<LibWebRTCAudioModule>();
+
+    factoryAndThreads.factory = webrtc::CreatePeerConnectionFactory(factoryAndThreads.networkThread.get(), factoryAndThreads.networkThread.get(), factoryAndThreads.signalingThread.get(), factoryAndThreads.audioDeviceModule.get(), new webrtc::VideoToolboxVideoEncoderFactory(), new webrtc::VideoToolboxVideoDecoderFactory());
+
+    ASSERT(factoryAndThreads.factory);
+}
+
+webrtc::PeerConnectionFactoryInterface& LibWebRTCProvider::factory()
+{
+    if (!staticFactoryAndThreads().factory)
+        initializePeerConnectionFactoryAndThreads();
+    return *staticFactoryAndThreads().factory;
+}
+
+void LibWebRTCProvider::setPeerConnectionFactory(rtc::scoped_refptr<webrtc::PeerConnectionFactoryInterface>&& factory)
+{
+    if (!staticFactoryAndThreads().factory)
+        initializePeerConnectionFactoryAndThreads();
+
+    staticFactoryAndThreads().factory = webrtc::PeerConnectionFactoryProxy::Create(staticFactoryAndThreads().signalingThread.get(), WTFMove(factory));
+}
+
+static rtc::scoped_refptr<webrtc::PeerConnectionInterface> createActualPeerConnection(webrtc::PeerConnectionObserver& observer, std::unique_ptr<cricket::BasicPortAllocator>&& portAllocator)
+{
+    ASSERT(staticFactoryAndThreads().factory);
+
+    webrtc::PeerConnectionInterface::RTCConfiguration config;
+    // FIXME: Add a default configuration.
+    return staticFactoryAndThreads().factory->CreatePeerConnection(config, WTFMove(portAllocator), nullptr, &observer);
+}
+
+rtc::scoped_refptr<webrtc::PeerConnectionInterface> LibWebRTCProvider::createPeerConnection(webrtc::PeerConnectionObserver& observer)
+{
+    // Default WK1 implementation.
+    auto& factoryAndThreads = staticFactoryAndThreads();
+    if (!factoryAndThreads.factory) {
+        staticFactoryAndThreads().networkThreadWithSocketServer = true;
+        initializePeerConnectionFactoryAndThreads();
+    }
+    ASSERT(staticFactoryAndThreads().networkThreadWithSocketServer);
+
+    return createActualPeerConnection(observer, nullptr);
+}
+
+rtc::scoped_refptr<webrtc::PeerConnectionInterface> LibWebRTCProvider::createPeerConnection(webrtc::PeerConnectionObserver& observer, rtc::NetworkManager& networkManager, rtc::PacketSocketFactory& packetSocketFactory)
+{
+    ASSERT(!staticFactoryAndThreads().networkThreadWithSocketServer);
+
+    auto& factoryAndThreads = staticFactoryAndThreads();
+    if (!factoryAndThreads.factory)
+        initializePeerConnectionFactoryAndThreads();
+
+    std::unique_ptr<cricket::BasicPortAllocator> portAllocator;
+    staticFactoryAndThreads().signalingThread->Invoke<void>(RTC_FROM_HERE, [&]() {
+        portAllocator.reset(new cricket::BasicPortAllocator(&networkManager, &packetSocketFactory));
+    });
+
+    return createActualPeerConnection(observer, WTFMove(portAllocator));
+}
+
+} // namespace WebCore
+
+#endif // USE(LIBWEBRTC)