- add sources.
[platform/framework/web/crosswalk.git] / src / remoting / host / ipc_video_frame_capturer.h
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 REMOTING_HOST_IPC_VIDEO_FRAME_CAPTURER_H_
6 #define REMOTING_HOST_IPC_VIDEO_FRAME_CAPTURER_H_
7
8 #include "base/memory/ref_counted.h"
9 #include "base/memory/weak_ptr.h"
10 #include "base/memory/scoped_ptr.h"
11 #include "third_party/webrtc/modules/desktop_capture/screen_capturer.h"
12
13 namespace IPC {
14 class Message;
15 }  // namespace IPC
16
17 namespace media {
18 struct MouseCursorShape;
19 }  // namespace media
20
21 namespace remoting {
22
23 class DesktopSessionProxy;
24
25 // Routes webrtc::ScreenCapturer calls though the IPC channel to the desktop
26 // session agent running in the desktop integration process.
27 class IpcVideoFrameCapturer : public webrtc::ScreenCapturer {
28  public:
29   explicit IpcVideoFrameCapturer(
30       scoped_refptr<DesktopSessionProxy> desktop_session_proxy);
31   virtual ~IpcVideoFrameCapturer();
32
33   // webrtc::DesktopCapturer interface.
34   virtual void Start(Callback* callback) OVERRIDE;
35   virtual void Capture(const webrtc::DesktopRegion& region) OVERRIDE;
36
37   // webrtc::ScreenCapturer interface.
38   virtual void SetMouseShapeObserver(
39       MouseShapeObserver* mouse_shape_observer) OVERRIDE;
40
41   // Called when a video |frame| has been captured.
42   void OnCaptureCompleted(scoped_ptr<webrtc::DesktopFrame> frame);
43
44   // Called when the cursor shape has changed.
45   void OnCursorShapeChanged(scoped_ptr<webrtc::MouseCursorShape> cursor_shape);
46
47  private:
48   // Points to the callback passed to webrtc::ScreenCapturer::Start().
49   webrtc::ScreenCapturer::Callback* callback_;
50
51   MouseShapeObserver* mouse_shape_observer_;
52
53   // Wraps the IPC channel to the desktop session agent.
54   scoped_refptr<DesktopSessionProxy> desktop_session_proxy_;
55
56   // Set to true when a frame is being captured.
57   bool capture_pending_;
58
59   // Used to cancel tasks pending on the capturer when it is stopped.
60   base::WeakPtrFactory<IpcVideoFrameCapturer> weak_factory_;
61
62   DISALLOW_COPY_AND_ASSIGN(IpcVideoFrameCapturer);
63 };
64
65 }  // namespace remoting
66
67 #endif  // REMOTING_HOST_IPC_VIDEO_FRAME_CAPTURER_H_