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   if (window)
  23     machine->SetWindow(window);
  24 }
  25
  26 }  // namespace
  27
  28 DesktopCaptureDeviceAura::DesktopCaptureDeviceAura(
  29     const DesktopMediaID& source) {
  30   AuraWindowCaptureMachine* machine = new AuraWindowCaptureMachine();
  31   core_.reset(new media::ScreenCaptureDeviceCore(make_scoped_ptr(machine)));
  32   // |core_| owns |machine| and deletes it on UI thread so passing the raw
  33   // pointer to the UI thread is safe here.
  34   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
  35                           base::Bind(&SetCaptureSource, machine, source));
  36 }
  37
  38 DesktopCaptureDeviceAura::~DesktopCaptureDeviceAura() {
  39   DVLOG(2) << "DesktopCaptureDeviceAura@" << this << " destroying.";
  40 }
  41
  42 // static
  43 scoped_ptr<media::VideoCaptureDevice> DesktopCaptureDeviceAura::Create(
  44     const DesktopMediaID& source) {
  45   if (source.aura_id == DesktopMediaID::kNullId)
  46     return nullptr;
  47   return scoped_ptr<media::VideoCaptureDevice>(
  48       new DesktopCaptureDeviceAura(source));
  49 }
  50
  51 void DesktopCaptureDeviceAura::AllocateAndStart(
  52     const media::VideoCaptureParams& params,
  53     scoped_ptr<Client> client) {
  54   DVLOG(1) << "Allocating " << params.requested_format.frame_size.ToString();
  55   core_->AllocateAndStart(params, client.Pass());
  56 }
  57
  58 void DesktopCaptureDeviceAura::StopAndDeAllocate() {
  59   core_->StopAndDeAllocate();
  60 }
  61
  62 }  // namespace content