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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 { }
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->Release();
m_presenterActivate = NULL;
}
if (m_currentActivate) {
m_currentActivate->ShutdownObject();
m_currentActivate->Release();
}
m_currentActivate = NULL;
}
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 = new EVRCustomPresenterActivate(m_sink);
m_currentActivate->SetUnknown(MF_ACTIVATE_CUSTOM_VIDEO_PRESENTER_ACTIVATE, m_presenterActivate);
}
}
return m_currentActivate;
}
EVRCustomPresenterActivate::EVRCustomPresenterActivate(QVideoSink *sink)
: MFAbstractActivate()
, m_presenter(0)
, m_videoSink(sink)
{ }
HRESULT EVRCustomPresenterActivate::ActivateObject(REFIID riid, void **ppv)
{
if (!ppv)
return E_INVALIDARG;
QMutexLocker locker(&m_mutex);
if (!m_presenter) {
m_presenter = new 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->Release();
m_presenter = 0;
}
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
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