content/public/browser/media_capture_devices.h

   1 // Copyright 2014 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_PUBLIC_BROWSER_MEDIA_CAPTURE_DEVICES_H_
   6 #define CONTENT_PUBLIC_BROWSER_MEDIA_CAPTURE_DEVICES_H_
   7
   8 #include "content/public/common/media_stream_request.h"
   9
  10 namespace content {
  11
  12 // This is a singleton class, used to get Audio/Video devices, it must be
  13 // called in UI thread.
  14 class CONTENT_EXPORT  MediaCaptureDevices {
  15  public:
  16   // Get signleton instance of MediaCaptureDevices.
  17   static MediaCaptureDevices* GetInstance();
  18
  19   // Return all Audio/Video devices.
  20   virtual const MediaStreamDevices& GetAudioCaptureDevices() = 0;
  21   virtual const MediaStreamDevices& GetVideoCaptureDevices() = 0;
  22
  23  private:
  24   // This interface should only be implemented inside content.
  25   friend class MediaCaptureDevicesImpl;
  26   MediaCaptureDevices() {}
  27   virtual ~MediaCaptureDevices() {}
  28 };
  29
  30 }  // namespace content
  31
  32 #endif  // CONTENT_PUBLIC_BROWSER_MEDIA_CAPTURE_DEVICES_H_