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02aa31048c
* nsIScreencastServiceClient is not thread safe refcounted so we make nsScreencastService::Session a thread safe refcounted object and keep it alive while there are inflight frames. Once such frames get handled on the main thread we check if the session has been stopped.
* Removed mCaptureCallbackCs in favor of atomic counter (mClient is not accessed only on the main thread).
* HeadlessWindowCapturer now holds RefPtr to the headless window object to avoid use after free when clearing it as a listener on the widget.
* ScreencastEncoder is not ref counted anymore.
Pretty-diff: 5f5042ff1e
65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#pragma once
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#include <memory>
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#include <set>
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#include "api/video/video_frame.h"
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#include "api/video/video_sink_interface.h"
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#include "modules/video_capture/video_capture.h"
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#include "rtc_base/deprecated/recursive_critical_section.h"
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#include "video_engine/desktop_capture_impl.h"
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class nsIWidget;
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namespace mozilla {
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namespace widget {
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class HeadlessWidget;
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}
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class HeadlessWindowCapturer : public webrtc::VideoCaptureModuleEx {
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public:
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static rtc::scoped_refptr<webrtc::VideoCaptureModuleEx> Create(mozilla::widget::HeadlessWidget*);
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void RegisterCaptureDataCallback(
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rtc::VideoSinkInterface<webrtc::VideoFrame>* dataCallback) override;
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void DeRegisterCaptureDataCallback(
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rtc::VideoSinkInterface<webrtc::VideoFrame>* dataCallback) override;
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int32_t StopCaptureIfAllClientsClose() override;
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void RegisterRawFrameCallback(webrtc::RawFrameCallback* rawFrameCallback) override;
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void DeRegisterRawFrameCallback(webrtc::RawFrameCallback* rawFrameCallback) override;
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int32_t SetCaptureRotation(webrtc::VideoRotation) override { return -1; }
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bool SetApplyRotation(bool) override { return false; }
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bool GetApplyRotation() override { return true; }
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const char* CurrentDeviceName() const override { return "Headless window"; }
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// Platform dependent
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int32_t StartCapture(const webrtc::VideoCaptureCapability& capability) override;
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bool FocusOnSelectedSource() override { return false; }
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int32_t StopCapture() override;
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bool CaptureStarted() override;
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int32_t CaptureSettings(webrtc::VideoCaptureCapability& settings) override {
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return -1;
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}
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protected:
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HeadlessWindowCapturer(mozilla::widget::HeadlessWidget*);
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~HeadlessWindowCapturer() override;
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private:
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void NotifyFrameCaptured(const webrtc::VideoFrame& frame);
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RefPtr<mozilla::widget::HeadlessWidget> mWindow;
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rtc::RecursiveCriticalSection _callBackCs;
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std::set<rtc::VideoSinkInterface<webrtc::VideoFrame>*> _dataCallBacks;
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std::set<webrtc::RawFrameCallback*> _rawFrameCallbacks;
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};
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} // namespace mozilla
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