#include <evrcustompresenter_p.h>

Inheritance diagram for EVRCustomPresenter:

Collaboration diagram for EVRCustomPresenter:

Public Types
enum	RenderState { RenderStarted = 1 , RenderStopped , RenderPaused , RenderShutdown }

enum	FrameStepState { FrameStepNone , FrameStepWaitingStart , FrameStepPending , FrameStepScheduled , FrameStepComplete }

enum	PresenterEvents { StartSurface = QEvent::User , StopSurface = QEvent::User + 1 , PresentSample = QEvent::User + 2 }

Public Slots
void	positionChanged (qint64 position)

Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

Public Member Functions
	EVRCustomPresenter (QVideoSink *sink=0)

	~EVRCustomPresenter () override

bool	isValid () const

STDMETHODIMP	QueryInterface (REFIID riid, void **ppv) override

	STDMETHODIMP_ (ULONG) AddRef() override

	STDMETHODIMP_ (ULONG) Release() override

STDMETHODIMP	GetService (REFGUID guidService, REFIID riid, LPVOID *ppvObject) override

STDMETHODIMP	ProcessMessage (MFVP_MESSAGE_TYPE message, ULONG_PTR param) override

STDMETHODIMP	GetCurrentMediaType (IMFVideoMediaType **mediaType) override

STDMETHODIMP	OnClockStart (MFTIME systemTime, LONGLONG clockStartOffset) override

STDMETHODIMP	OnClockStop (MFTIME systemTime) override

STDMETHODIMP	OnClockPause (MFTIME systemTime) override

STDMETHODIMP	OnClockRestart (MFTIME systemTime) override

STDMETHODIMP	OnClockSetRate (MFTIME systemTime, float rate) override

STDMETHODIMP	GetSlowestRate (MFRATE_DIRECTION direction, BOOL thin, float *rate) override

STDMETHODIMP	GetFastestRate (MFRATE_DIRECTION direction, BOOL thin, float *rate) override

STDMETHODIMP	IsRateSupported (BOOL thin, float rate, float *nearestSupportedRate) override

STDMETHODIMP	GetDeviceID (IID *deviceID) override

STDMETHODIMP	InitServicePointers (IMFTopologyServiceLookup *lookup) override

STDMETHODIMP	ReleaseServicePointers () override

void	supportedFormatsChanged ()

void	setSink (QVideoSink *sink)

void	setCropRect (QRect cropRect)

void	startSurface ()

void	stopSurface ()

void	presentSample (const ComPtr< IMFSample > &sample)

bool	event (QEvent *) override
	This virtual function receives events to an object and should return true if the event e was recognized and processed.

Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)
	Constructs an object with parent object parent.

virtual	~QObject ()
	Destroys the object, deleting all its child objects.

virtual bool	eventFilter (QObject watched, QEvent event)
	Filters events if this object has been installed as an event filter for the watched object.

QString	objectName () const

Q_WEAK_OVERLOAD void	setObjectName (const QString &name)
	Sets the object's name to name.

void	setObjectName (QAnyStringView name)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QBindable< QString >	bindableObjectName ()

bool	isWidgetType () const
	Returns `true` if the object is a widget; otherwise returns `false`.

bool	isWindowType () const
	Returns `true` if the object is a window; otherwise returns `false`.

bool	isQuickItemType () const
	Returns `true` if the object is a QQuickItem; otherwise returns `false`.

bool	signalsBlocked () const noexcept
	Returns `true` if signals are blocked; otherwise returns `false`.

bool	blockSignals (bool b) noexcept
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).

QThread *	thread () const
	Returns the thread in which the object lives.

bool	moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
	Changes the thread affinity for this object and its children and returns `true` on success.

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
	This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.

int	startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)

void	killTimer (int id)
	Kills the timer with timer identifier, id.

void	killTimer (Qt::TimerId id)

template<typename T >
T	findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.

template<typename T >
QList< T >	findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.

template<typename T >
T	findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

const QObjectList &	children () const
	Returns a list of child objects.

void	setParent (QObject *parent)
	Makes the object a child of parent.

void	installEventFilter (QObject *filterObj)
	Installs an event filter filterObj on this object.

void	removeEventFilter (QObject *obj)
	Removes an event filter object obj from this object.

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=nullptr, const QObject receiver=nullptr, const char *member=nullptr) const

bool	disconnect (const QObject receiver, const char member=nullptr) const

void	dumpObjectTree () const
	Dumps a tree of children to the debug output.

void	dumpObjectInfo () const
	Dumps information about signal connections, etc.

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value.

bool	setProperty (const char *name, QVariant &&value)

QVariant	property (const char *name) const
	Returns the value of the object's name property.

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () const
	Returns a pointer to the parent object.

bool	inherits (const char *classname) const
	Returns `true` if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns `false`.

Additional Inherited Members
Signals inherited from QObject
void	destroyed (QObject *=nullptr)
	This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.

void	objectNameChanged (const QString &objectName, QPrivateSignal)
	This signal is emitted after the object's name has been changed.

Static Public Member Functions inherited from QObject
static QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	\threadsafe

static QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	\threadsafe

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static bool	disconnect (const QMetaObject::Connection &)
	Disconnect a connection.

template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot)

template<typename Func1 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject receiver, void **zero)

Protected Member Functions inherited from QObject
QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.

int	senderSignalIndex () const

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal.

bool	isSignalConnected (const QMetaMethod &signal) const

virtual void	timerEvent (QTimerEvent *event)
	This event handler can be reimplemented in a subclass to receive timer events for the object.

virtual void	childEvent (QChildEvent *event)
	This event handler can be reimplemented in a subclass to receive child events.

virtual void	customEvent (QEvent *event)
	This event handler can be reimplemented in a subclass to receive custom events.

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

	QObject (QObjectPrivate &dd, QObject *parent=nullptr)

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Properties inherited from QObject
QString	objectName
	the name of this object

Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

Definition at line 165 of file evrcustompresenter_p.h.

Member Enumeration Documentation

◆ FrameStepState

enum EVRCustomPresenter::FrameStepState

Enumerator
FrameStepNone
FrameStepWaitingStart
FrameStepPending
FrameStepScheduled
FrameStepComplete

Definition at line 185 of file evrcustompresenter_p.h.

◆ PresenterEvents

enum EVRCustomPresenter::PresenterEvents

Enumerator
StartSurface
StopSurface
PresentSample

Definition at line 194 of file evrcustompresenter_p.h.

◆ RenderState

enum EVRCustomPresenter::RenderState

Enumerator
RenderStarted
RenderStopped
RenderPaused
RenderShutdown

Definition at line 176 of file evrcustompresenter_p.h.

Constructor & Destructor Documentation

◆ EVRCustomPresenter()

EVRCustomPresenter::EVRCustomPresenter ( QVideoSink * sink = 0 )

Definition at line 466 of file evrcustompresenter.cpp.

References setSink().

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◆ ~EVRCustomPresenter()

EVRCustomPresenter::~EVRCustomPresenter ( )

override

Definition at line 492 of file evrcustompresenter.cpp.

References SamplePool::clear(), Scheduler::flush(), and Scheduler::stopScheduler().

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Member Function Documentation

◆ event()

bool EVRCustomPresenter::event ( QEvent * e )

overridevirtual

This virtual function receives events to an object and should return true if the event e was recognized and processed.

The event() function can be reimplemented to customize the behavior of an object.

Make sure you call the parent event class implementation for all the events you did not handle.

Example:

class MyClass : public QWidget
{
    Q_OBJECT
 
public:
    MyClass(QWidget *parent = nullptr);
    ~MyClass();
 
    bool event(QEvent* ev) override
    {
        if (ev->type() == QEvent::PolishRequest) {
            // overwrite handling of PolishRequest if any
            doThings();
            return true;
        } else  if (ev->type() == QEvent::Show) {
            // complement handling of Show if any
            doThings2();
            QWidget::event(ev);
            return true;
        }
        // Make sure the rest of events are handled
        return QWidget::event(ev);
    }
};

See also: installEventFilter(), timerEvent(), QCoreApplication::sendEvent(), QCoreApplication::postEvent()

Reimplemented from QObject.

Definition at line 1743 of file evrcustompresenter.cpp.

References QObject::event(), PresentSample, presentSample(), StartSurface, startSurface(), StopSurface, stopSurface(), and QEvent::type().

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◆ GetCurrentMediaType()

HRESULT EVRCustomPresenter::GetCurrentMediaType ( IMFVideoMediaType ** mediaType )

override

Definition at line 716 of file evrcustompresenter.cpp.

◆ GetDeviceID()

HRESULT EVRCustomPresenter::GetDeviceID ( IID * deviceID )

override

Definition at line 560 of file evrcustompresenter.cpp.

◆ GetFastestRate()

HRESULT EVRCustomPresenter::GetFastestRate	(	MFRATE_DIRECTION	direction,
		BOOL	thin,
		float *	rate )

override

Definition at line 873 of file evrcustompresenter.cpp.

References direction.

◆ GetService()

HRESULT EVRCustomPresenter::GetService	(	REFGUID	guidService,
		REFIID	riid,
		LPVOID *	ppvObject )

override

Definition at line 540 of file evrcustompresenter.cpp.

References D3DPresentEngine::getService(), QueryInterface(), and riid.

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◆ GetSlowestRate()

HRESULT EVRCustomPresenter::GetSlowestRate	(	MFRATE_DIRECTION	direction,
		BOOL	thin,
		float *	rate )

override

Definition at line 856 of file evrcustompresenter.cpp.

◆ InitServicePointers()

HRESULT EVRCustomPresenter::InitServicePointers ( IMFTopologyServiceLookup * lookup )

override

Definition at line 570 of file evrcustompresenter.cpp.

References RenderStopped.

◆ IsRateSupported()

HRESULT EVRCustomPresenter::IsRateSupported	(	BOOL	thin,
		float	rate,
		float *	nearestSupportedRate )

override

Definition at line 898 of file evrcustompresenter.cpp.

References qFabs().

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◆ isValid()

bool EVRCustomPresenter::isValid ( ) const

Definition at line 649 of file evrcustompresenter.cpp.

References D3DPresentEngine::isValid().

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◆ OnClockPause()

HRESULT EVRCustomPresenter::OnClockPause ( MFTIME systemTime )

override

Definition at line 816 of file evrcustompresenter.cpp.

References RenderPaused.

◆ OnClockRestart()

HRESULT EVRCustomPresenter::OnClockRestart ( MFTIME systemTime )

override

Definition at line 772 of file evrcustompresenter.cpp.

References RenderStarted.

◆ OnClockSetRate()

HRESULT EVRCustomPresenter::OnClockSetRate	(	MFTIME	systemTime,
		float	rate )

override

Definition at line 829 of file evrcustompresenter.cpp.

References QList< T >::clear(), and Scheduler::setClockRate().

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◆ OnClockStart()

HRESULT EVRCustomPresenter::OnClockStart	(	MFTIME	systemTime,
		LONGLONG	clockStartOffset )

override

Definition at line 737 of file evrcustompresenter.cpp.

References QMM_PRESENTATION_CURRENT_POSITION, and RenderStarted.

◆ OnClockStop()

HRESULT EVRCustomPresenter::OnClockStop ( MFTIME systemTime )

override

Definition at line 796 of file evrcustompresenter.cpp.

References FrameStepNone, and RenderStopped.

◆ positionChanged

void EVRCustomPresenter::positionChanged ( qint64 position )

slot

Definition at line 1813 of file evrcustompresenter.cpp.

References position().

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◆ presentSample()

void EVRCustomPresenter::presentSample ( const ComPtr< IMFSample > & sample )

Definition at line 1777 of file evrcustompresenter.cpp.

References QtVideo::Clockwise180, QtVideo::Clockwise270, QtVideo::Clockwise90, QThread::currentThread(), frame, QVideoFrameFormat::isValid(), D3DPresentEngine::makeVideoFrame(), QtVideo::None, QVideoSink::platformVideoSink(), QCoreApplication::postEvent(), QPlatformVideoSink::setVideoFrame(), QObject::thread(), and D3DPresentEngine::videoSurfaceFormat().

Referenced by event(), Scheduler::processSamplesInQueue(), and Scheduler::scheduleSample().

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◆ ProcessMessage()

HRESULT EVRCustomPresenter::ProcessMessage	(	MFVP_MESSAGE_TYPE	message,
		ULONG_PTR	param )

override

Definition at line 654 of file evrcustompresenter.cpp.

◆ QueryInterface()

HRESULT EVRCustomPresenter::QueryInterface	(	REFIID	riid,
		void **	ppv )

override

Definition at line 501 of file evrcustompresenter.cpp.

References riid.

Referenced by EVRCustomPresenterActivate::ActivateObject(), and GetService().

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◆ ReleaseServicePointers()

HRESULT EVRCustomPresenter::ReleaseServicePointers ( )

override

Definition at line 626 of file evrcustompresenter.cpp.

References QMutex::lock(), RenderShutdown, and QMutex::unlock().

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◆ setCropRect()

void EVRCustomPresenter::setCropRect ( QRect cropRect )

Definition at line 963 of file evrcustompresenter.cpp.

References QMutex::lock(), and QMutex::unlock().

Referenced by EVRCustomPresenterActivate::ActivateObject(), and EVRCustomPresenterActivate::setCropRect().

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◆ setSink()

void EVRCustomPresenter::setSink ( QVideoSink * sink )

Definition at line 953 of file evrcustompresenter.cpp.

References QMutex::lock(), D3DPresentEngine::setSink(), supportedFormatsChanged(), and QMutex::unlock().

Referenced by EVRCustomPresenter(), and EVRCustomPresenterActivate::setSink().

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◆ startSurface()

void EVRCustomPresenter::startSurface ( )

Definition at line 1761 of file evrcustompresenter.cpp.

References QThread::currentThread(), QCoreApplication::postEvent(), StartSurface, and QObject::thread().

Referenced by event().

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◆ STDMETHODIMP_() [1/2]

EVRCustomPresenter::STDMETHODIMP_ ( ULONG )

override

◆ STDMETHODIMP_() [2/2]

EVRCustomPresenter::STDMETHODIMP_ ( ULONG )

override

◆ stopSurface()

void EVRCustomPresenter::stopSurface ( )

Definition at line 1769 of file evrcustompresenter.cpp.

References QThread::currentThread(), QCoreApplication::postEvent(), StopSurface, and QObject::thread().

Referenced by event().

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◆ supportedFormatsChanged()

void EVRCustomPresenter::supportedFormatsChanged ( )

Definition at line 932 of file evrcustompresenter.cpp.

References D3DPresentEngine::checkFormat(), QVideoFrameFormat::NPixelFormats, and qt_evr_D3DFormatFromPixelFormat().

Referenced by setSink().

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The documentation for this class was generated from the following files:

qtmultimedia/src/plugins/multimedia/windows/evr/evrcustompresenter_p.h (cc8492f75c285b58b90c16d8712b19ba181db443)
qtmultimedia/src/plugins/multimedia/windows/evr/evrcustompresenter.cpp (cc8492f75c285b58b90c16d8712b19ba181db443)

Public Types

Public Slots

Public Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ FrameStepState

◆ PresenterEvents

◆ RenderState

Constructor & Destructor Documentation

◆ EVRCustomPresenter()

◆ ~EVRCustomPresenter()

Member Function Documentation

◆ event()

◆ GetCurrentMediaType()

◆ GetDeviceID()

◆ GetFastestRate()

◆ GetService()

◆ GetSlowestRate()

◆ InitServicePointers()

◆ IsRateSupported()

◆ isValid()

◆ OnClockPause()

◆ OnClockRestart()

◆ OnClockSetRate()

◆ OnClockStart()

◆ OnClockStop()

◆ positionChanged

◆ presentSample()

◆ ProcessMessage()

◆ QueryInterface()

◆ ReleaseServicePointers()

◆ setCropRect()

◆ setSink()

◆ startSurface()

◆ STDMETHODIMP_() [1/2]

◆ STDMETHODIMP_() [2/2]

◆ stopSurface()

◆ supportedFormatsChanged()