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| 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 #ifndef MEDIA_VIDEO_CAPTURE_SCREEN_SHARED_DESKTOP_FRAME_H_ |
| 6 #define MEDIA_VIDEO_CAPTURE_SCREEN_SHARED_DESKTOP_FRAME_H_ |
| 7 |
| 8 #include "base/memory/ref_counted.h" |
| 9 #include "third_party/webrtc/modules/desktop_capture/desktop_frame.h" |
| 10 |
| 11 namespace media { |
| 12 |
| 13 // SharedDesktopFrame is a DesktopFrame that may have multiple instances all |
| 14 // sharing the same buffer. |
| 15 class SharedDesktopFrame : public webrtc::DesktopFrame { |
| 16 public: |
| 17 virtual ~SharedDesktopFrame(); |
| 18 |
| 19 static SharedDesktopFrame* Wrap(webrtc::DesktopFrame* desktop_frame); |
| 20 |
| 21 // Returns the underlying instance of DesktopFrame. |
| 22 webrtc::DesktopFrame* GetUnderlyingFrame(); |
| 23 |
| 24 // Creates a clone of this object. |
| 25 SharedDesktopFrame* Share(); |
| 26 |
| 27 // Checks if the frame is currently shared. If it returns false it's |
| 28 // guaranteed that there are no clones of the object. |
| 29 bool IsShared(); |
| 30 |
| 31 private: |
| 32 class Core; |
| 33 |
| 34 SharedDesktopFrame(scoped_refptr<Core> core); |
| 35 |
| 36 scoped_refptr<Core> core_; |
| 37 |
| 38 DISALLOW_COPY_AND_ASSIGN(SharedDesktopFrame); |
| 39 }; |
| 40 |
| 41 } // namespace media |
| 42 |
| 43 #endif // MEDIA_VIDEO_CAPTURE_SCREEN_SHARED_DESKTOP_FRAME_H_ |
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