66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
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/*
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* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_DESKTOP_CAPTURE_SHARED_DESKTOP_FRAME_H_
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#define MODULES_DESKTOP_CAPTURE_SHARED_DESKTOP_FRAME_H_
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#include <memory>
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#include "api/scoped_refptr.h"
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#include "modules/desktop_capture/desktop_frame.h"
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#include "rtc_base/constructor_magic.h"
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#include "rtc_base/ref_counted_object.h"
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#include "rtc_base/system/rtc_export.h"
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namespace webrtc {
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// SharedDesktopFrame is a DesktopFrame that may have multiple instances all
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// sharing the same buffer.
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class RTC_EXPORT SharedDesktopFrame : public DesktopFrame {
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public:
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~SharedDesktopFrame() override;
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static std::unique_ptr<SharedDesktopFrame> Wrap(
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std::unique_ptr<DesktopFrame> desktop_frame);
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// Deprecated.
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// TODO(sergeyu): remove this method.
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static SharedDesktopFrame* Wrap(DesktopFrame* desktop_frame);
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// Deprecated. Clients do not need to know the underlying DesktopFrame
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// instance.
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// TODO(zijiehe): Remove this method.
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// Returns the underlying instance of DesktopFrame.
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DesktopFrame* GetUnderlyingFrame();
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// Returns whether |this| and |other| share the underlying DesktopFrame.
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bool ShareFrameWith(const SharedDesktopFrame& other) const;
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// Creates a clone of this object.
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std::unique_ptr<SharedDesktopFrame> Share();
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// Checks if the frame is currently shared. If it returns false it's
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// guaranteed that there are no clones of the object.
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bool IsShared();
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private:
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typedef rtc::RefCountedObject<std::unique_ptr<DesktopFrame>> Core;
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SharedDesktopFrame(rtc::scoped_refptr<Core> core);
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const rtc::scoped_refptr<Core> core_;
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RTC_DISALLOW_COPY_AND_ASSIGN(SharedDesktopFrame);
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};
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} // namespace webrtc
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#endif // MODULES_DESKTOP_CAPTURE_SHARED_DESKTOP_FRAME_H_
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