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