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- // Copyright (C) 2016 The Qt Company Ltd.
- // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
- #include "mfvideorenderercontrol_p.h"
- #include "mfactivate_p.h"
-
- #include "evrcustompresenter_p.h"
-
- #include <private/qplatformvideosink_p.h>
-
- QT_BEGIN_NAMESPACE
-
- class EVRCustomPresenterActivate : public MFAbstractActivate
- {
- public:
- EVRCustomPresenterActivate(QVideoSink *sink);
-
- STDMETHODIMP ActivateObject(REFIID riid, void **ppv) override;
- STDMETHODIMP ShutdownObject() override;
- STDMETHODIMP DetachObject() override;
-
- void setSink(QVideoSink *sink);
- void setCropRect(QRect cropRect);
-
- private:
- // Destructor is not public. Caller should call Release.
- ~EVRCustomPresenterActivate() override { }
-
- ComPtr<EVRCustomPresenter> m_presenter;
- QVideoSink *m_videoSink;
- QRect m_cropRect;
- QMutex m_mutex;
- };
-
-
- MFVideoRendererControl::MFVideoRendererControl(QObject *parent)
- : QObject(parent)
- {
- }
-
- MFVideoRendererControl::~MFVideoRendererControl()
- {
- releaseActivate();
- }
-
- void MFVideoRendererControl::releaseActivate()
- {
- if (m_sink)
- m_sink->platformVideoSink()->setVideoFrame(QVideoFrame());
-
- if (m_presenterActivate) {
- m_presenterActivate->ShutdownObject();
- m_presenterActivate.Reset();
- }
-
- if (m_currentActivate) {
- m_currentActivate->ShutdownObject();
- m_currentActivate.Reset();
- }
- }
-
- void MFVideoRendererControl::setSink(QVideoSink *sink)
- {
- m_sink = sink;
-
- if (m_presenterActivate)
- m_presenterActivate->setSink(m_sink);
- }
-
- void MFVideoRendererControl::setCropRect(const QRect &cropRect)
- {
- if (m_presenterActivate)
- m_presenterActivate->setCropRect(cropRect);
- }
-
- IMFActivate* MFVideoRendererControl::createActivate()
- {
- releaseActivate();
-
- if (m_sink) {
- // Create the EVR media sink, but replace the presenter with our own
- if (SUCCEEDED(MFCreateVideoRendererActivate(::GetShellWindow(), &m_currentActivate))) {
- m_presenterActivate = makeComObject<EVRCustomPresenterActivate>(m_sink);
- m_currentActivate->SetUnknown(MF_ACTIVATE_CUSTOM_VIDEO_PRESENTER_ACTIVATE,
- m_presenterActivate.Get());
- }
- }
-
- return m_currentActivate.Get();
- }
-
- EVRCustomPresenterActivate::EVRCustomPresenterActivate(QVideoSink *sink)
- : MFAbstractActivate(), m_videoSink(sink)
- { }
-
- HRESULT EVRCustomPresenterActivate::ActivateObject(REFIID riid, void **ppv)
- {
- if (!ppv)
- return E_INVALIDARG;
- QMutexLocker locker(&m_mutex);
- if (!m_presenter) {
- m_presenter = makeComObject<EVRCustomPresenter>(m_videoSink);
- m_presenter->setCropRect(m_cropRect);
- }
- return m_presenter->QueryInterface(riid, ppv);
- }
-
- HRESULT EVRCustomPresenterActivate::ShutdownObject()
- {
- // The presenter does not implement IMFShutdown so
- // this function is the same as DetachObject()
- return DetachObject();
- }
-
- HRESULT EVRCustomPresenterActivate::DetachObject()
- {
- QMutexLocker locker(&m_mutex);
- if (m_presenter) {
- m_presenter.Reset();
- }
- return S_OK;
- }
-
- void EVRCustomPresenterActivate::setSink(QVideoSink *sink)
- {
- QMutexLocker locker(&m_mutex);
- if (m_videoSink == sink)
- return;
-
- m_videoSink = sink;
-
- if (m_presenter)
- m_presenter->setSink(sink);
- }
-
- void EVRCustomPresenterActivate::setCropRect(QRect cropRect)
- {
- QMutexLocker locker(&m_mutex);
- if (m_cropRect == cropRect)
- return;
-
- m_cropRect = cropRect;
-
- if (m_presenter)
- m_presenter->setCropRect(cropRect);
- }
-
- QT_END_NAMESPACE