91902cb6c0
To ensure this change won't break Chromium, this is the first change, to add a new CaptureFrame() function, and let Capture(DesktopRegion) and CaptureFrame() call each other. So both a legacy consumer or a legacy implementation won't be broken. BUG=https://bugs.chromium.org/p/webrtc/issues/detail?id=6513 Review-Url: https://codereview.webrtc.org/2409833002 Cr-Commit-Position: refs/heads/master@{#14635}
59 lines
2.2 KiB
C++
59 lines
2.2 KiB
C++
/*
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* Copyright (c) 2016 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 WEBRTC_MODULES_DESKTOP_CAPTURE_SCREEN_CAPTURER_DIFFER_WRAPPER_H_
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#define WEBRTC_MODULES_DESKTOP_CAPTURE_SCREEN_CAPTURER_DIFFER_WRAPPER_H_
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#include <memory>
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#include "webrtc/modules/desktop_capture/screen_capturer.h"
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#include "webrtc/modules/desktop_capture/shared_desktop_frame.h"
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namespace webrtc {
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// ScreenCapturer wrapper that calculates updated_region() by comparing frames
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// content. This class always expects the underlying ScreenCapturer
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// implementation returns a superset of updated regions in DestkopFrame. If a
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// ScreenCapturer implementation does not know the updated region, it should
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// set updated_region() to full frame.
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//
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// This class marks entire frame as updated if the frame size or frame stride
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// has been changed.
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class ScreenCapturerDifferWrapper : public ScreenCapturer,
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public DesktopCapturer::Callback {
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public:
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// Creates a ScreenCapturerDifferWrapper with a ScreenCapturer implementation,
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// and takes its ownership.
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explicit ScreenCapturerDifferWrapper(
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std::unique_ptr<ScreenCapturer> base_capturer);
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~ScreenCapturerDifferWrapper() override;
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// ScreenCapturer interface.
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void Start(DesktopCapturer::Callback* callback) override;
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void SetSharedMemoryFactory(
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std::unique_ptr<SharedMemoryFactory> shared_memory_factory) override;
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void CaptureFrame() override;
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bool GetScreenList(ScreenList* screens) override;
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bool SelectScreen(ScreenId id) override;
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private:
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// DesktopCapturer::Callback interface.
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void OnCaptureResult(Result result,
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std::unique_ptr<DesktopFrame> frame) override;
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const std::unique_ptr<ScreenCapturer> base_capturer_;
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DesktopCapturer::Callback* callback_;
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std::unique_ptr<SharedDesktopFrame> last_frame_;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_DESKTOP_CAPTURE_SCREEN_CAPTURER_DIFFER_WRAPPER_H_
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