55 lines
1.7 KiB
C++
55 lines
1.7 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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#ifndef DOM_MEDIA_PLATFORM_WMF_MFMEDIAENGINENOTIFY_H
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#define DOM_MEDIA_PLATFORM_WMF_MFMEDIAENGINENOTIFY_H
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#include <wrl.h>
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#include "MediaEventSource.h"
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#include "MFMediaEngineExtra.h"
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#include "mozilla/Maybe.h"
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namespace mozilla {
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const char* MediaEngineEventToStr(MF_MEDIA_ENGINE_EVENT aEvent);
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// https://docs.microsoft.com/en-us/windows/win32/api/mfmediaengine/ne-mfmediaengine-mf_media_engine_event
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struct MFMediaEngineEventWrapper final {
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explicit MFMediaEngineEventWrapper(MF_MEDIA_ENGINE_EVENT aEvent)
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: mEvent(aEvent) {}
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MF_MEDIA_ENGINE_EVENT mEvent;
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Maybe<DWORD_PTR> mParam1;
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Maybe<DWORD> mParam2;
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};
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/**
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* MFMediaEngineNotify is used to handle the event sent from the media engine.
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* https://docs.microsoft.com/en-us/windows/win32/api/mfmediaengine/nn-mfmediaengine-imfmediaenginenotify
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*/
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class MFMediaEngineNotify final
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: public Microsoft::WRL::RuntimeClass<
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Microsoft::WRL::RuntimeClassFlags<
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Microsoft::WRL::RuntimeClassType::ClassicCom>,
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IMFMediaEngineNotify> {
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public:
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MFMediaEngineNotify() = default;
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HRESULT RuntimeClassInitialize() { return S_OK; }
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// Method for IMFMediaEngineNotify
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IFACEMETHODIMP EventNotify(DWORD aEvent, DWORD_PTR aParam1,
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DWORD aParam2) override;
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MediaEventSource<MFMediaEngineEventWrapper>& MediaEngineEvent() {
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return mEngineEvents;
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}
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private:
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MediaEventProducer<MFMediaEngineEventWrapper> mEngineEvents;
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};
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} // namespace mozilla
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#endif // DOM_MEDIA_PLATFORM_WMF_MFMEDIAENGINENOTIFY_H
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