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/desktop_capturer.h" 12 13 namespace remoting { 14 15 class DesktopSessionProxy; 16 17 // Routes webrtc::DesktopCapturer calls though the IPC channel to the desktop 18 // session agent running in the desktop integration process. 19 class IpcVideoFrameCapturer : public webrtc::DesktopCapturer { 20 public: 21 explicit IpcVideoFrameCapturer( 22 scoped_refptr<DesktopSessionProxy> desktop_session_proxy); 23 virtual ~IpcVideoFrameCapturer(); 24 25 // webrtc::DesktopCapturer interface. 26 virtual void Start(Callback* callback) OVERRIDE; 27 virtual void Capture(const webrtc::DesktopRegion& region) OVERRIDE; 28 29 // Called when a video |frame| has been captured. 30 void OnCaptureCompleted(scoped_ptr<webrtc::DesktopFrame> frame); 31 32 private: 33 // Points to the callback passed to webrtc::DesktopCapturer::Start(). 34 webrtc::DesktopCapturer::Callback* callback_; 35 36 // Wraps the IPC channel to the desktop session agent. 37 scoped_refptr<DesktopSessionProxy> desktop_session_proxy_; 38 39 // Set to true when a frame is being captured. 40 bool capture_pending_; 41 42 // Used to cancel tasks pending on the capturer when it is stopped. 43 base::WeakPtrFactory<IpcVideoFrameCapturer> weak_factory_; 44 45 DISALLOW_COPY_AND_ASSIGN(IpcVideoFrameCapturer); 46 }; 47 48 } // namespace remoting 49 50 #endif // REMOTING_HOST_IPC_VIDEO_FRAME_CAPTURER_H_ 51