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/browser/media/capture/content_video_capture_device_core.h"
  11 #include "content/public/browser/browser_thread.h"
  12 #include "ui/aura/window.h"
  13
  14 namespace content {
  15
  16 namespace {
  17
  18 void SetCaptureSource(AuraWindowCaptureMachine* machine,
  19                       const DesktopMediaID& source) {
  20   DCHECK_CURRENTLY_ON(BrowserThread::UI);
  21
  22   aura::Window* window = DesktopMediaID::GetAuraWindowById(source);
  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 ContentVideoCaptureDeviceCore(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 media::VideoCaptureDevice* DesktopCaptureDeviceAura::Create(
  44     const DesktopMediaID& source) {
  45   return new DesktopCaptureDeviceAura(source);
  46 }
  47
  48 void DesktopCaptureDeviceAura::AllocateAndStart(
  49     const media::VideoCaptureParams& params,
  50     scoped_ptr<Client> client) {
  51   DVLOG(1) << "Allocating " << params.requested_format.frame_size.ToString();
  52   core_->AllocateAndStart(params, client.Pass());
  53 }
  54
  55 void DesktopCaptureDeviceAura::StopAndDeAllocate() {
  56   core_->StopAndDeAllocate();
  57 }
  58
  59 }  // namespace content