Enabling usage of native PeerConnection v2 in libjingle.

content/renderer/media/media_stream_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_IMPL_H_
 
 #include <list>
 #include <map>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop_proxy.h"
 #include "base/threading/non_thread_safe.h"
 #include "base/threading/thread.h"
 #include "content/common/content_export.h"
 #include "content/renderer/media/media_stream_dispatcher_eventhandler.h"
+#include "content/renderer/media/rtc_video_decoder.h"
+#include "third_party/libjingle/source/talk/app/webrtc/mediastream.h"
+#include "third_party/libjingle/source/talk/base/scoped_ref_ptr.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebUserMediaClient.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebUserMediaRequest.h"
 #include "webkit/media/media_stream_client.h"
 
 namespace base {
 class WaitableEvent;
 }
 
 namespace content {
 class IpcNetworkManager;
 class IpcPacketSocketFactory;
 class P2PSocketDispatcher;
 }
 
-namespace cricket {
-class WebRtcMediaEngine;
-}
-
 namespace talk_base {
 class Thread;
 }
 
 namespace WebKit {
 class WebPeerConnectionHandler;
 class WebPeerConnectionHandlerClient;
 }
 
 class MediaStreamDispatcher;
@@ skipping 17 matching lines @@
   MediaStreamImpl(
       MediaStreamDispatcher* media_stream_dispatcher,
       content::P2PSocketDispatcher* p2p_socket_dispatcher,
       VideoCaptureImplManager* vc_manager,
       MediaStreamDependencyFactory* dependency_factory);
   virtual ~MediaStreamImpl();
 
   virtual WebKit::WebPeerConnectionHandler* CreatePeerConnectionHandler(
       WebKit::WebPeerConnectionHandlerClient* client);
   virtual void ClosePeerConnection();
-
-  // Returns true if created successfully or already exists, false otherwise.
-  virtual bool SetVideoCaptureModule(const std::string& label);
+  virtual webrtc::MediaStreamTrackInterface* GetLocalMediaStreamTrack(
+      const std::string& label);
 
   // WebKit::WebUserMediaClient implementation
   virtual void requestUserMedia(
       const WebKit::WebUserMediaRequest& user_media_request,
       const WebKit::WebVector<WebKit::WebMediaStreamSource>&
           media_stream_source_vector) OVERRIDE;
   virtual void cancelUserMediaRequest(
       const WebKit::WebUserMediaRequest& user_media_request) OVERRIDE;
 
   // webkit_media::MediaStreamClient implementation.
@@ skipping 20 matching lines @@
   virtual void OnDevicesEnumerationFailed(int request_id) OVERRIDE;
   virtual void OnDeviceOpened(
       int request_id,
       const std::string& label,
       const media_stream::StreamDeviceInfo& device_info) OVERRIDE;
   virtual void OnDeviceOpenFailed(int request_id) OVERRIDE;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(MediaStreamImplTest, Basic);
 
+  class VideoRendererWrapper : public webrtc::VideoRendererWrapperInterface {
+   public:
+    VideoRendererWrapper();
+    virtual cricket::VideoRenderer* renderer() OVERRIDE {
+      return rtc_video_decoder_.get();
+    }
+    void SetVideoDecoder(RTCVideoDecoder* decoder);
+
+   protected:
+    virtual ~VideoRendererWrapper();
+
+   private:
+    scoped_refptr<RTCVideoDecoder> rtc_video_decoder_;
+  };
+
   void InitializeWorkerThread(
       talk_base::Thread** thread,
       base::WaitableEvent* event);
   void DeleteIpcNetworkManager();
+  bool EnsurePeerConnectionFactory();
 
   scoped_ptr<MediaStreamDependencyFactory> dependency_factory_;
 
   // media_stream_dispatcher_ is a weak reference, owned by RenderView. It's
   // valid for the lifetime of RenderView.
   MediaStreamDispatcher* media_stream_dispatcher_;
 
-  // media_engine_ is owned by PeerConnectionFactory (which is owned by
-  // dependency_factory_) and is valid for the lifetime of
-  // PeerConnectionFactory.
-  cricket::WebRtcMediaEngine* media_engine_;
-
   // p2p_socket_dispatcher_ is a weak reference, owned by RenderView. It's valid
   // for the lifetime of RenderView.
   content::P2PSocketDispatcher* p2p_socket_dispatcher_;
 
   // We own network_manager_, must be deleted on the worker thread.
   content::IpcNetworkManager* network_manager_;
 
   scoped_ptr<content::IpcPacketSocketFactory> socket_factory_;
 
   scoped_refptr<VideoCaptureImplManager> vc_manager_;
 
   // peer_connection_handler_ is a weak reference, owned by WebKit. It's valid
   // until stop is called on it (which will call ClosePeerConnection on us).
   // TODO(grunell): Support several PeerConnectionsHandlers.
   PeerConnectionHandler* peer_connection_handler_;
 
-  scoped_refptr<RTCVideoDecoder> rtc_video_decoder_;
+  // We keep a list of the generated local tracks, so that we can add capture
+  // devices when generated and also use them for recording.
+  typedef talk_base::scoped_refptr<webrtc::MediaStreamTrackInterface>
+      MediaStreamTrackPtr;
+  typedef std::map<std::string, MediaStreamTrackPtr> MediaStreamTrackPtrMap;
+  MediaStreamTrackPtrMap local_tracks_;
+
+  talk_base::scoped_refptr<VideoRendererWrapper> video_renderer_;
   scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
 
   // PeerConnection threads. signaling_thread_ is created from the
   // "current" chrome thread.
   talk_base::Thread* signaling_thread_;
   talk_base::Thread* worker_thread_;
   base::Thread chrome_worker_thread_;
 
   static int next_request_id_;
   typedef std::map<int, WebKit::WebUserMediaRequest> MediaRequestMap;
   MediaRequestMap user_media_requests_;
 
-  std::list<std::string> stream_labels_;
-
-  // Make sure we only create the video capture module once. This is also
-  // temporary and will be handled differently when several PeerConnections
-  // and/or streams is supported.
-  // TODO(grunell): This shall be removed or changed when native PeerConnection
-  // has been updated to closer follow the specification.
-  bool vcm_created_;
-
   DISALLOW_COPY_AND_ASSIGN(MediaStreamImpl);
 };
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_IMPL_H_