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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CONTENT_RENDERER_MEDIA_PEER_CONNECTION_HANDLER_H_ | |
| 6 #define CONTENT_RENDERER_MEDIA_PEER_CONNECTION_HANDLER_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/basictypes.h" | |
| 11 #include "base/gtest_prod_util.h" | |
| 12 #include "base/memory/scoped_ptr.h" | |
| 13 #include "base/message_loop_proxy.h" | |
| 14 #include "content/common/content_export.h" | |
| 15 #include "third_party/libjingle/source/talk/app/webrtc/peerconnection.h" | |
| 16 #include "third_party/libjingle/source/talk/base/socketaddress.h" | |
| 17 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebPeerConne
ctionHandler.h" | |
| 18 | |
| 19 namespace base { | |
| 20 class Thread; | |
| 21 class WaitableEvent; | |
| 22 } | |
| 23 | |
| 24 namespace content { | |
| 25 class IpcNetworkManager; | |
| 26 class IpcPacketSocketFactory; | |
| 27 class P2PSocketDispatcher; | |
| 28 } | |
| 29 | |
| 30 namespace cricket { | |
| 31 class PortAllocator; | |
| 32 } | |
| 33 | |
| 34 namespace talk_base { | |
| 35 class Thread; | |
| 36 } | |
| 37 | |
| 38 class MediaStreamDependencyFactory; | |
| 39 class MediaStreamImpl; | |
| 40 | |
| 41 // PeerConnectionHandler is a delegate for the PeerConnection API messages going | |
| 42 // between WebKit and native PeerConnection in libjingle. It's owned by | |
| 43 // MediaStreamImpl. | |
| 44 class CONTENT_EXPORT PeerConnectionHandler | |
| 45 : public WebKit::WebPeerConnectionHandler, | |
| 46 public webrtc::PeerConnectionObserver { | |
| 47 public: | |
| 48 PeerConnectionHandler( | |
| 49 WebKit::WebPeerConnectionHandlerClient* client, | |
| 50 MediaStreamImpl* msi, | |
| 51 MediaStreamDependencyFactory* dependency_factory, | |
| 52 talk_base::Thread* signaling_thread, | |
| 53 content::P2PSocketDispatcher* socket_dispatcher, | |
| 54 content::IpcNetworkManager* network_manager, | |
| 55 content::IpcPacketSocketFactory* socket_factory); | |
| 56 virtual ~PeerConnectionHandler(); | |
| 57 | |
| 58 // Set the video renderer for the specified stream. | |
| 59 virtual bool SetVideoRenderer(const std::string& stream_label, | |
| 60 cricket::VideoRenderer* renderer); | |
| 61 | |
| 62 // WebKit::WebPeerConnectionHandler implementation | |
| 63 virtual void initialize( | |
| 64 const WebKit::WebString& server_configuration, | |
| 65 const WebKit::WebSecurityOrigin& security_origin) OVERRIDE; | |
| 66 virtual void produceInitialOffer( | |
| 67 const WebKit::WebVector<WebKit::WebMediaStreamDescriptor>& | |
| 68 pending_add_streams) OVERRIDE; | |
| 69 virtual void handleInitialOffer(const WebKit::WebString& sdp) OVERRIDE; | |
| 70 virtual void processSDP(const WebKit::WebString& sdp) OVERRIDE; | |
| 71 virtual void processPendingStreams( | |
| 72 const WebKit::WebVector<WebKit::WebMediaStreamDescriptor>& | |
| 73 pending_add_streams, | |
| 74 const WebKit::WebVector<WebKit::WebMediaStreamDescriptor>& | |
| 75 pending_remove_streams) OVERRIDE; | |
| 76 virtual void sendDataStreamMessage(const char* data, size_t length) OVERRIDE; | |
| 77 virtual void stop() OVERRIDE; | |
| 78 | |
| 79 // webrtc::PeerConnectionObserver implementation | |
| 80 virtual void OnSignalingMessage(const std::string& msg) OVERRIDE; | |
| 81 virtual void OnAddStream(const std::string& stream_id, bool video) OVERRIDE; | |
| 82 virtual void OnRemoveStream( | |
| 83 const std::string& stream_id, | |
| 84 bool video) OVERRIDE; | |
| 85 | |
| 86 private: | |
| 87 FRIEND_TEST_ALL_PREFIXES(PeerConnectionHandlerTest, Basic); | |
| 88 | |
| 89 void AddStream(const std::string label); | |
| 90 void OnAddStreamCallback(const std::string& stream_label); | |
| 91 void OnRemoveStreamCallback(const std::string& stream_label); | |
| 92 | |
| 93 // client_ is a weak pointer, and is valid until stop() has returned. | |
| 94 WebKit::WebPeerConnectionHandlerClient* client_; | |
| 95 | |
| 96 // media_stream_impl_ is a weak pointer, and is valid for the lifetime of this | |
| 97 // class. Calls to it must be done on the render thread. | |
| 98 MediaStreamImpl* media_stream_impl_; | |
| 99 | |
| 100 // dependency_factory_ is a weak pointer, and is valid for the lifetime of | |
| 101 // MediaStreamImpl. | |
| 102 MediaStreamDependencyFactory* dependency_factory_; | |
| 103 | |
| 104 // native_peer_connection_ is the native PeerConnection object, | |
| 105 // it handles the ICE processing and media engine. | |
| 106 scoped_ptr<webrtc::PeerConnection> native_peer_connection_; | |
| 107 | |
| 108 scoped_refptr<base::MessageLoopProxy> message_loop_proxy_; | |
| 109 | |
| 110 talk_base::Thread* signaling_thread_; | |
| 111 | |
| 112 // socket_dispatcher_ is a weak reference, owned by RenderView. It's valid | |
| 113 // for the lifetime of RenderView. | |
| 114 content::P2PSocketDispatcher* socket_dispatcher_; | |
| 115 | |
| 116 // network_manager_ and socket_factory_ are a weak references, owned by | |
| 117 // MediaStreamImpl. | |
| 118 content::IpcNetworkManager* network_manager_; | |
| 119 content::IpcPacketSocketFactory* socket_factory_; | |
| 120 | |
| 121 scoped_ptr<cricket::PortAllocator> port_allocator_; | |
| 122 | |
| 123 // Currently, a stream in WebKit has audio and/or video and has one label. | |
| 124 // Local and remote streams have different labels. | |
| 125 // In native PeerConnection, a stream has audio or video (not both), and they | |
| 126 // have separate labels. A remote stream has the same label as the | |
| 127 // corresponding local stream. Hence the workarounds in the implementation to | |
| 128 // handle this. It could look like this: | |
| 129 // WebKit: Local, audio and video: label "foo". | |
| 130 // Remote, audio and video: label "foo-remote". | |
| 131 // Native: Local and remote, audio: label "foo-audio". | |
| 132 // Local and remote, video: label "foo". | |
| 133 // TODO(grunell): This shall be removed or changed when native PeerConnection | |
| 134 // has been updated to closer follow the specification. | |
| 135 std::string local_label_; // Label used in WebKit | |
| 136 std::string remote_label_; // Label used in WebKit | |
| 137 | |
| 138 // Call states. Possible transitions: | |
| 139 // NOT_STARTED -> INITIATING -> SENDING_AND_RECEIVING | |
| 140 // NOT_STARTED -> RECEIVING | |
| 141 // RECEIVING -> NOT_STARTED | |
| 142 // RECEIVING -> SENDING_AND_RECEIVING | |
| 143 // SENDING_AND_RECEIVING -> NOT_STARTED | |
| 144 // Note that when in state SENDING_AND_RECEIVING, the other side may or may | |
| 145 // not send media. Thus, this state does not necessarily mean full duplex. | |
| 146 // TODO(grunell): This shall be removed or changed when native PeerConnection | |
| 147 // has been updated to closer follow the specification. | |
| 148 enum CallState { | |
| 149 NOT_STARTED, | |
| 150 INITIATING, | |
| 151 RECEIVING, | |
| 152 SENDING_AND_RECEIVING | |
| 153 }; | |
| 154 CallState call_state_; | |
| 155 | |
| 156 DISALLOW_COPY_AND_ASSIGN(PeerConnectionHandler); | |
| 157 }; | |
| 158 | |
| 159 #endif // CONTENT_RENDERER_MEDIA_PEER_CONNECTION_HANDLER_H_ | |
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Chromium Code Reviews
Issue 9139010:
Revert 117187 - Adding support for MediaStream and PeerConnection functionality. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/