content/browser/media/capture/desktop_capture_device_aura.cc

   1 // Copyright 2013 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 "content/browser/media/capture/desktop_capture_device_aura.h"
   6
   7 #include "base/logging.h"
   8 #include "base/timer/timer.h"
   9 #include "content/browser/media/capture/aura_window_capture_machine.h"
  10 #include "content/public/browser/browser_thread.h"
  11 #include "ui/aura/window.h"
  12
  13 namespace content {
  14
  15 namespace {
  16
  17 void SetCaptureSource(AuraWindowCaptureMachine* machine,
  18                       const DesktopMediaID& source) {
  19   DCHECK_CURRENTLY_ON(BrowserThread::UI);
  20
  21   aura::Window* window = DesktopMediaID::GetAuraWindowById(source);
  22   machine->SetWindow(window);
  23 }
  24
  25 }  // namespace
  26
  27 DesktopCaptureDeviceAura::DesktopCaptureDeviceAura(
  28     const DesktopMediaID& source) {
  29   AuraWindowCaptureMachine* machine = new AuraWindowCaptureMachine();
  30   core_.reset(new media::ScreenCaptureDeviceCore(make_scoped_ptr(machine)));
  31   // |core_| owns |machine| and deletes it on UI thread so passing the raw
  32   // pointer to the UI thread is safe here.
  33   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
  34                           base::Bind(&SetCaptureSource, machine, source));
  35 }
  36
  37 DesktopCaptureDeviceAura::~DesktopCaptureDeviceAura() {
  38   DVLOG(2) << "DesktopCaptureDeviceAura@" << this << " destroying.";
  39 }
  40
  41 // static
  42 media::VideoCaptureDevice* DesktopCaptureDeviceAura::Create(
  43     const DesktopMediaID& source) {
  44   return new DesktopCaptureDeviceAura(source);
  45 }
  46
  47 void DesktopCaptureDeviceAura::AllocateAndStart(
  48     const media::VideoCaptureParams& params,
  49     scoped_ptr<Client> client) {
  50   DVLOG(1) << "Allocating " << params.requested_format.frame_size.ToString();
  51   core_->AllocateAndStart(params, client.Pass());
  52 }
  53
  54 void DesktopCaptureDeviceAura::StopAndDeAllocate() {
  55   core_->StopAndDeAllocate();
  56 }
  57
  58 }  // namespace content