Adds MediaStreamSource, MediaStreamAudioSource and MediaStreamVideoCaptureDeviceSource

content/renderer/media/media_stream_dependency_factory.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_DEPENDENCY_FACTORY_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_DEPENDENCY_FACTORY_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 56 matching lines @@
                               bool live)> MediaSourcesCreatedCallback;
   MediaStreamDependencyFactory(
       P2PSocketDispatcher* p2p_socket_dispatcher);
   virtual ~MediaStreamDependencyFactory();
 
   // Create a RTCPeerConnectionHandler object that implements the
   // WebKit WebRTCPeerConnectionHandler interface.
   blink::WebRTCPeerConnectionHandler* CreateRTCPeerConnectionHandler(
       blink::WebRTCPeerConnectionHandlerClient* client);
 
-  // CreateNativeMediaSources creates libjingle representations of
-  // the underlying sources to the tracks in |web_stream|.
-  // |sources_created| is invoked when the sources have either been created and
-  // transitioned to a live state or failed.
-  // The libjingle sources is stored in the extra data field of
+  // CreateNativeMediaStreamAudioSources creates a MediaStream source object

[Ronghua Wu (Left Chromium), 2014/01/16 23:02:37]

Looking at the implementation of this method, it's more of initialize the source
instead of creating a new one.

[perkj_chrome, 2014/01/17 13:19:45]

Done.

+  // for audio input.
+  // The sources are stored in the extra data field of
   // WebMediaStreamSource.
-  // |audio_constraints| and |video_constraints| set parameters for the sources.
-  void CreateNativeMediaSources(
+  bool CreateNativeMediaStreamAudioSources(
       int render_view_id,
       const blink::WebMediaConstraints& audio_constraints,
-      const blink::WebMediaConstraints& video_constraints,
-      blink::WebMediaStream* web_stream,
-      const MediaSourcesCreatedCallback& sources_created);
+      const blink::WebVector<blink::WebMediaStreamSource>& audio_sources);
+
+  virtual cricket::VideoCapturer* CreateVideoCapturer(

[Ronghua Wu (Left Chromium), 2014/01/16 23:02:37]

add comment

[perkj_chrome, 2014/01/17 13:19:45]

done. Note that this is kind of temporary. I can not create the RTCVideoCapturer
in the source object itself because it can not be mocked for MediaStreamImpl
unit tests easely. Since it will go away in my next cl I don't want to spend
time on it now.

+      const StreamDeviceInfo& info);
 
   // Creates a libjingle representation of a MediaStream and stores
   // it in the extra data field of |web_stream|.
   void CreateNativeLocalMediaStream(
       blink::WebMediaStream* web_stream);
 
   // Creates a libjingle representation of a MediaStream and stores
   // it in the extra data field of |web_stream|.
   // |stream_stopped| is a callback that is run when a MediaStream have been
   // stopped.
@@ skipping 69 matching lines @@
  protected:
   // Asks the PeerConnection factory to create a Local MediaStream object.
   virtual scoped_refptr<webrtc::MediaStreamInterface>
       CreateLocalMediaStream(const std::string& label);
 
   // Asks the PeerConnection factory to create a Local Audio Source.
   virtual scoped_refptr<webrtc::AudioSourceInterface>
       CreateLocalAudioSource(
           const webrtc::MediaConstraintsInterface* constraints);
 
-  // Asks the PeerConnection factory to create a Local Video Source.
-  virtual scoped_refptr<webrtc::VideoSourceInterface>
-      CreateLocalVideoSource(
-          int video_session_id,
-          bool is_screen_cast,
-          const webrtc::MediaConstraintsInterface* constraints);
-
   // Creates a media::AudioCapturerSource with an implementation that is
   // specific for a WebAudio source. The created WebAudioCapturerSource
   // instance will function as audio source instead of the default
   // WebRtcAudioCapturer.
   // The |constraints| will be modified to include the default, mandatory
   // WebAudio constraints.
   virtual scoped_refptr<WebAudioCapturerSource> CreateWebAudioSource(
       blink::WebMediaStreamSource* source,
       const RTCMediaConstraints& constraints);
 
@@ skipping 75 matching lines @@
   base::Thread chrome_worker_thread_;
 
   base::PlatformFile aec_dump_file_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamDependencyFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_DEPENDENCY_FACTORY_H_