content/browser/media/capture/desktop_capture_device.h

   1 // Copyright (c) 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 #ifndef CONTENT_BROWSER_MEDIA_CAPTURE_DESKTOP_CAPTURE_DEVICE_H_
   6 #define CONTENT_BROWSER_MEDIA_CAPTURE_DESKTOP_CAPTURE_DEVICE_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "content/common/content_export.h"
  11 #include "media/video/capture/video_capture_device.h"
  12 #include "ui/gfx/native_widget_types.h"
  13
  14 namespace base {
  15 class SequencedTaskRunner;
  16 }  // namespace base
  17
  18 namespace webrtc {
  19 class DesktopCapturer;
  20 }  // namespace webrtc
  21
  22 namespace content {
  23
  24 struct DesktopMediaID;
  25
  26 // DesktopCaptureDevice implements VideoCaptureDevice for screens and windows.
  27 // It's essentially an adapter between webrtc::DesktopCapturer and
  28 // VideoCaptureDevice.
  29 class CONTENT_EXPORT DesktopCaptureDevice : public media::VideoCaptureDevice {
  30  public:
  31   // Creates capturer for the specified |source| and then creates
  32   // DesktopCaptureDevice for it. May return NULL in case of a failure (e.g. if
  33   // requested window was destroyed).
  34   static scoped_ptr<media::VideoCaptureDevice> Create(
  35       const DesktopMediaID& source);
  36
  37   DesktopCaptureDevice(scoped_refptr<base::SequencedTaskRunner> task_runner,
  38                        scoped_ptr<webrtc::DesktopCapturer> desktop_capturer);
  39   virtual ~DesktopCaptureDevice();
  40
  41   // VideoCaptureDevice interface.
  42   virtual void AllocateAndStart(const media::VideoCaptureParams& params,
  43                                 scoped_ptr<Client> client) OVERRIDE;
  44   virtual void StopAndDeAllocate() OVERRIDE;
  45
  46   // Set the platform-dependent window id for the notification window.
  47   void SetNotificationWindowId(gfx::NativeViewId window_id);
  48
  49  private:
  50   class Core;
  51   scoped_refptr<Core> core_;
  52
  53   DISALLOW_COPY_AND_ASSIGN(DesktopCaptureDevice);
  54 };
  55
  56 }  // namespace content
  57
  58 #endif  // CONTENT_BROWSER_MEDIA_CAPTURE_DESKTOP_CAPTURE_DEVICE_H_