Hook up EncodedVideoSource on the browser side

content/browser/renderer_host/media/video_capture_host.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.
 //
 // VideoCaptureHost serves video capture related messages from
 // VideoCaptureMessageFilter which lives inside the render process.
 //
 // This class is owned by BrowserRenderProcessHost, and instantiated on UI
 // thread, but all other operations and method calls happen on IO thread.
 //
@@ skipping 19 matching lines @@
 //      |  VideoCaptureHostMsg_Stop >         |
 //      | VideoCaptureHostMsg_BufferReady >   |
 //      | < VideoCaptureMsg_StateChanged      |
 //      |         (kStopped)                  |
 //      v                                     v
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_HOST_H_
 
 #include <map>
+#include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/sequenced_task_runner_helpers.h"
 #include "content/browser/renderer_host/media/video_capture_controller.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "ipc/ipc_message.h"
+#include "media/video/capture/video_capture_types.h"
+
+namespace media {
+
+struct RuntimeVideoEncodingParameters;
+struct VideoEncodingParameters;
+
+}  // namespace media
 
 namespace content {
 
 class CONTENT_EXPORT VideoCaptureHost
     : public BrowserMessageFilter,
       public VideoCaptureControllerEventHandler {
  public:
   VideoCaptureHost();
 
   // BrowserMessageFilter implementation.
   virtual void OnChannelClosing() OVERRIDE;
   virtual void OnDestruct() const OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message,
                                  bool* message_was_ok) OVERRIDE;
 
   // VideoCaptureControllerEventHandler implementation.

[Ami GONE FROM CHROMIUM, 2013/06/18 18:35:55]

s/rE/r::E/

[sheu, 2013/08/22 22:40:31]

It's actually not a nested class.  <dramatic prairie dog />

   virtual void OnError(const VideoCaptureControllerID& id) OVERRIDE;
-  virtual void OnBufferCreated(const VideoCaptureControllerID& id,
-                               base::SharedMemoryHandle handle,
-                               int length, int buffer_id) OVERRIDE;
   virtual void OnBufferReady(const VideoCaptureControllerID& id,
                              int buffer_id,
-                             base::Time timestamp) OVERRIDE;
+                             size_t data_size,
+                             base::Time timestamp,
+                             bool key_frame) OVERRIDE;
   virtual void OnFrameInfo(const VideoCaptureControllerID& id,
-                           int width,
-                           int height,
-                           int frame_per_second) OVERRIDE;
+                           const media::VideoCaptureParams& params,
+                           const std::vector<base::SharedMemoryHandle>& buffers,
+                           size_t buffer_size) OVERRIDE;
+  virtual void OnEncodedFrameInfo(
+      const VideoCaptureControllerID& id,
+      const media::VideoEncodingParameters& params,
+      const std::vector<base::SharedMemoryHandle>& buffers,
+      size_t buffer_size) OVERRIDE;
+  virtual void OnBitstreamConfigChanged(
+      const VideoCaptureControllerID& id,
+      const media::RuntimeVideoEncodingParameters& params) OVERRIDE;
   virtual void OnEnded(const VideoCaptureControllerID& id) OVERRIDE;
 
  private:
   friend class BrowserThread;
   friend class base::DeleteHelper<VideoCaptureHost>;
   friend class MockVideoCaptureHost;
   friend class VideoCaptureHostTest;
 
   virtual ~VideoCaptureHost();
 
   // IPC message: Start capture on the VideoCaptureDevice referenced by
   // VideoCaptureParams::session_id. |device_id| is an id created by
-  // VideoCaptureMessageFilter to identify a session
-  // between a VideoCaptureMessageFilter and a VideoCaptureHost.
+  // VideoCaptureMessageFilter to identify a session between a
+  // VideoCaptureMessageFilter and a VideoCaptureHost.
   void OnStartCapture(int device_id,
                       const media::VideoCaptureParams& params);
   void OnControllerAdded(
       int device_id, const media::VideoCaptureParams& params,
       VideoCaptureController* controller);
   void DoControllerAddedOnIOThread(
       int device_id, const media::VideoCaptureParams params,
       VideoCaptureController* controller);
 
   // IPC message: Stop capture on device referenced by |device_id|.
   void OnStopCapture(int device_id);
 
   // IPC message: Pause capture on device referenced by |device_id|.
   void OnPauseCapture(int device_id);
 
   // IPC message: Receive an empty buffer from renderer. Send it to device
   // referenced by |device_id|.
   void OnReceiveEmptyBuffer(int device_id, int buffer_id);
 
+  // IPC message: Request the encoding capabilities for the capture session
+  // referenced by |session_id|.
+  void OnGetCapabilities(int device_id,
+                         const media::VideoCaptureSessionId& session_id);
+  void OnEncodingCapabilitiesFound(
+      int device_id,
+      const media::VideoEncodingCapabilities& capabilities);
+  void DoEncodingCapabilitiesFoundOnIOThread(
+      int device_id,
+      const media::VideoEncodingCapabilities& capabilities);
+
+  // IPC message: Start the encoded bitstream on the VideoCaptureDevice
+  // referenced by |session_id|. |device_id| is an id created y
+  // VideoCaptureMessageFilter to identify a session between a
+  // VideoCaptureMessageFilter and a VideoCaptureHost.
+  void OnCreateBitstream(int device_id,
+                         const media::VideoCaptureSessionId& session_id,
+                         const media::VideoEncodingParameters& params);
+
+  // IPC message: Stop capture on device referenced by |device_id|.
+  void OnDestroyBitstream(int device_id);
+
+  // IPC message: Attempt to configure the encoded bitstream output from the
+  // device referenced by |device_id|.
+  void OnTryConfigureBitstream(
+      int device_id,
+      const media::RuntimeVideoEncodingParameters& params);
+
+  // IPC message: Receive an empty buffer from renderer. Send it to device
+  // referenced by |device_id|.
+  void OnBitstreamBufferConsumed(int device_id, int buffer_id);
+
   // Send a newly created buffer to the VideoCaptureMessageFilter.
   void DoSendNewBufferOnIOThread(
       const VideoCaptureControllerID& controller_id,
       base::SharedMemoryHandle handle,
       int length,
       int buffer_id);
 
   // Send a filled buffer to the VideoCaptureMessageFilter.
   void DoSendFilledBufferOnIOThread(
       const VideoCaptureControllerID& controller_id,
       int buffer_id,
-      base::Time timestamp);
+      size_t size,
+      base::Time timestamp,
+      bool key_frame);
+
+  // Handle error coming from VideoCaptureDevice.
+  void DoHandleErrorOnIOThread(const VideoCaptureControllerID& controller_id);
 
   // Send information about frame resolution and frame rate
   // to the VideoCaptureMessageFilter.
   void DoSendFrameInfoOnIOThread(
       const VideoCaptureControllerID& controller_id,
-      int width,
-      int height,
-      int frame_per_second);
-
-  // Handle error coming from VideoCaptureDevice.
-  void DoHandleErrorOnIOThread(const VideoCaptureControllerID& controller_id);
+      const media::VideoCaptureParams& params,
+      const std::vector<base::SharedMemoryHandle>& buffers,
+      size_t buffer_size);
+  void DoSendEncodedFrameInfoOnIOThread(
+      const VideoCaptureControllerID& controller_id,
+      const media::VideoEncodingParameters& params,
+      const std::vector<base::SharedMemoryHandle>& buffers,
+      size_t buffer_size);
 
   void DoEndedOnIOThread(const VideoCaptureControllerID& controller_id);
 
+  void DoBitstreamConfigChangedOnIOThread(
+      const VideoCaptureControllerID& controller_id,
+      const media::RuntimeVideoEncodingParameters& params);
+
   void DeleteVideoCaptureControllerOnIOThread(
       const VideoCaptureControllerID& controller_id);
 
   // Returns the video capture manager. This is a virtual function so that
   // the unit tests can inject their own MediaStreamManager.
   virtual VideoCaptureManager* GetVideoCaptureManager();
 
   struct Entry;
   typedef std::map<VideoCaptureControllerID, Entry*> EntryMap;
   // A map of VideoCaptureControllerID to its state and VideoCaptureController.
   EntryMap entries_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_HOST_H_