remoting/host/ipc_video_frame_capturer.cc

   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 #include "remoting/host/ipc_video_frame_capturer.h"
   6
   7 #include "remoting/host/desktop_session_proxy.h"
   8 #include "third_party/webrtc/modules/desktop_capture/desktop_frame.h"
   9 #include "third_party/webrtc/modules/desktop_capture/mouse_cursor_shape.h"
  10
  11 namespace remoting {
  12
  13 IpcVideoFrameCapturer::IpcVideoFrameCapturer(
  14     scoped_refptr<DesktopSessionProxy> desktop_session_proxy)
  15     : callback_(NULL),
  16       desktop_session_proxy_(desktop_session_proxy),
  17       capture_pending_(false),
  18       weak_factory_(this) {
  19 }
  20
  21 IpcVideoFrameCapturer::~IpcVideoFrameCapturer() {
  22 }
  23
  24 void IpcVideoFrameCapturer::Start(Callback* callback) {
  25   DCHECK(!callback_);
  26   DCHECK(callback);
  27   callback_ = callback;
  28   desktop_session_proxy_->SetVideoCapturer(weak_factory_.GetWeakPtr());
  29 }
  30
  31 void IpcVideoFrameCapturer::Capture(const webrtc::DesktopRegion& region) {
  32   DCHECK(!capture_pending_);
  33   capture_pending_ = true;
  34   desktop_session_proxy_->CaptureFrame();
  35 }
  36
  37 void IpcVideoFrameCapturer::OnCaptureCompleted(
  38     scoped_ptr<webrtc::DesktopFrame> frame) {
  39   DCHECK(capture_pending_);
  40   capture_pending_ = false;
  41   callback_->OnCaptureCompleted(frame.release());
  42 }
  43
  44 }  // namespace remoting