Define EncodedVideoSource and RtcCapturedEncodingVideoCapturer.

content/renderer/media/video_capture_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.
 
 // VideoCaptureImpl represents a capture device in renderer process. It provides
 // interfaces for clients to Start/Stop capture. It also communicates to clients
 // when buffer is ready, state of capture device is changed.
 
 // VideoCaptureImpl is also a delegate of VideoCaptureMessageFilter which
 // relays operation of capture device to browser process and receives response
 // from browser process.
 
 // The media::VideoCapture and VideoCaptureMessageFilter::Delegate are
 // asynchronous interfaces, which means callers can call those interfaces
 // from any threads without worrying about thread safety.
 // The |capture_message_loop_proxy_| is the working thread of VideoCaptureImpl.
 // All non-const members are accessed only on that working thread.
 
 #ifndef CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_H_
 
 #include <list>
 #include <map>
 
 #include "content/common/content_export.h"
 #include "content/common/media/video_capture.h"
+#include "content/renderer/media/captured_encoded_video_source_impl.h"
 #include "content/renderer/media/video_capture_message_filter.h"
 #include "media/video/capture/video_capture.h"
 #include "media/video/capture/video_capture_types.h"
+#include "media/video/encoded_video_source.h"
 
 namespace base {
 class MessageLoopProxy;
 }
 
 namespace content {
 
 class CONTENT_EXPORT VideoCaptureImpl
-    : public media::VideoCapture, public VideoCaptureMessageFilter::Delegate {
+    : public media::VideoCapture,
+      public VideoCaptureMessageFilter::Delegate,
+      public CapturedEncodedVideoSourceImpl {
  public:
   // media::VideoCapture interface.
   virtual void StartCapture(
       media::VideoCapture::EventHandler* handler,
       const media::VideoCaptureCapability& capability) OVERRIDE;
   virtual void StopCapture(media::VideoCapture::EventHandler* handler) OVERRIDE;
   virtual void FeedBuffer(scoped_refptr<VideoFrameBuffer> buffer) OVERRIDE;
   virtual bool CaptureStarted() OVERRIDE;
   virtual int CaptureWidth() OVERRIDE;
   virtual int CaptureHeight() OVERRIDE;
   virtual int CaptureFrameRate() OVERRIDE;
+  virtual media::EncodedVideoSource* GetEncodedVideoSource() OVERRIDE;
 
   // VideoCaptureMessageFilter::Delegate interface.
   virtual void OnBufferCreated(base::SharedMemoryHandle handle,
                                int length, int buffer_id) OVERRIDE;
   virtual void OnBufferReceived(int buffer_id, base::Time timestamp) OVERRIDE;
   virtual void OnStateChanged(VideoCaptureState state) OVERRIDE;
   virtual void OnDeviceInfoReceived(
       const media::VideoCaptureParams& device_info) OVERRIDE;
   virtual void OnDelegateAdded(int32 device_id) OVERRIDE;
 
   // Stop/resume delivering video frames to clients, based on flag |suspend|.
   virtual void SuspendCapture(bool suspend);
 
+  // EncodingVideoCaptureMessageFilter::Delegate interface.
+  virtual void OnCapabilityAvailable(
+          const media::VideoEncodingCapability& capability) OVERRIDE;
+  virtual void OnBitstreamCreated(
+      int stream_id,
+      const media::VideoEncodingParameters& params,
+      const std::map<int, base::SharedMemoryHandle>& handles) OVERRIDE;
+  virtual void OnBitstreamDestroyed(int stream_id) OVERRIDE;
+  virtual void OnBitstreamConfigChanged(
+      int stream_id,
+      const media::RuntimeVideoEncodingParameters& params) OVERRIDE;
+  virtual void OnBitstreamReady(
+      int stream_id,
+      int buffer_id,
+      size_t size,
+      const media::BufferEncodingMetadata& metadata) OVERRIDE;
+
+ protected:
+  // Services for CapturedEncodedVideoSourceImpl.
+  virtual int device_id() OVERRIDE;
+  virtual scoped_refptr<base::MessageLoopProxy> app_loop_proxy() OVERRIDE;
+  virtual scoped_refptr<base::MessageLoopProxy> io_loop_proxy() OVERRIDE;
+  virtual void Send(IPC::Message* message) OVERRIDE;

[Ami GONE FROM CHROMIUM, 2013/06/08 00:18:01]

Keep order same as in interface definition.

[hshi1, 2013/06/10 19:12:31]

Done.

+
  private:
   friend class VideoCaptureImplManager;
   friend class VideoCaptureImplTest;
   friend class MockVideoCaptureImpl;
 
   struct DIBBuffer;
   typedef std::map<media::VideoCapture::EventHandler*,
       media::VideoCaptureCapability> ClientInfo;
 
   VideoCaptureImpl(media::VideoCaptureSessionId id,
@@ skipping 18 matching lines @@
   void DoSuspendCaptureOnCaptureThread(bool suspend);
 
   void Init();
   void DeInit(base::Closure task);
   void DoDeInitOnCaptureThread(base::Closure task);
   void StopDevice();
   void RestartCapture();
   void StartCaptureInternal();
   void AddDelegateOnIOThread();
   void RemoveDelegateOnIOThread(base::Closure task);
-  virtual void Send(IPC::Message* message);
 
   // Helpers.
   bool ClientHasDIB() const;
   bool RemoveClient(media::VideoCapture::EventHandler* handler,
                     ClientInfo* clients);
 
   const scoped_refptr<VideoCaptureMessageFilter> message_filter_;
   const scoped_refptr<base::MessageLoopProxy> capture_message_loop_proxy_;
   const scoped_refptr<base::MessageLoopProxy> io_message_loop_proxy_;
   int device_id_;
@@ skipping 11 matching lines @@
 
   // The parameter is being used in current capture session. A capture session
   // starts with StartCapture and ends with StopCapture.
   media::VideoCaptureParams current_params_;
 
   // The information about the device sent from browser process side.
   media::VideoCaptureParams device_info_;
   bool device_info_available_;
 
   bool suspended_;
+  bool encoding_supported_;
   VideoCaptureState state_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_H_