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Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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Public Member Functions | List of all members
AndroidTextureVideoBuffer Class Reference
+ Inheritance diagram for AndroidTextureVideoBuffer:
+ Collaboration diagram for AndroidTextureVideoBuffer:

Public Member Functions

 AndroidTextureVideoBuffer (std::shared_ptr< QRhi > rhi, std::shared_ptr< AndroidTextureThread > thread, std::unique_ptr< QRhiTexture > tex, const QSize &size)
 
QVideoFrame::MapMode mapMode () const override
 
MapData map (QVideoFrame::MapMode mode) override
 Independently maps the planes of a video buffer to memory.
 
void unmap () override
 Releases the memory mapped by the map() function.
 
std::unique_ptr< QVideoFrameTextures > mapTextures (QRhi *rhi) override
 
- Public Member Functions inherited from QRhiWithThreadGuard
 QRhiWithThreadGuard (std::shared_ptr< QRhi > r, std::shared_ptr< AndroidTextureThread > t)
 
 ~QRhiWithThreadGuard ()
 
- 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 event (QEvent *event)
 This virtual function receives events to an object and should return true if the event e was recognized and processed.
 
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.
 
- Public Member Functions inherited from QAbstractVideoBuffer
 QAbstractVideoBuffer (QVideoFrame::HandleType type, QRhi *rhi=nullptr)
 Constructs an abstract video buffer of the given type.
 
virtual ~QAbstractVideoBuffer ()
 Destroys an abstract video buffer.
 
QVideoFrame::HandleType handleType () const
 Returns the type of a video buffer's handle.
 
QRhi * rhi () const
 Returns the QRhi instance.
 
virtual quint64 textureHandle (QRhi *, int) const
 Returns a texture handle to the data buffer.
 
virtual QMatrix4x4 externalTextureMatrix () const
 
virtual QByteArray underlyingByteArray (int) const
 

Additional Inherited Members

- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 
- 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 QRhiWithThreadGuard
std::shared_ptr< QRhi > m_guardRhi
 
- Protected Attributes inherited from QObject
QScopedPointer< QObjectData > d_ptr
 
- Protected Attributes inherited from QAbstractVideoBuffer
QVideoFrame::HandleType m_type
 
QRhi * m_rhi = nullptr
 
- Properties inherited from QObject
QString objectName
 the name of this object
 
- Related Symbols inherited from QObject
 Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.
 
 
 
 \macro Q_CLASSINFO(Name, Value)
 

Detailed Description

Definition at line 53 of file qandroidvideooutput.cpp.

Constructor & Destructor Documentation

◆ AndroidTextureVideoBuffer()

AndroidTextureVideoBuffer::AndroidTextureVideoBuffer ( std::shared_ptr< QRhi > rhi,
std::shared_ptr< AndroidTextureThread > thread,
std::unique_ptr< QRhiTexture > tex,
const QSize & size )
inline

Definition at line 56 of file qandroidvideooutput.cpp.

Member Function Documentation

◆ map()

QAbstractVideoBuffer::MapData AndroidTextureVideoBuffer::map ( QVideoFrame::MapMode mode)
overridevirtual

Independently maps the planes of a video buffer to memory.

The map mode indicates whether the contents of the mapped memory should be read from and/or written to the buffer. If the map mode includes the QVideoFrame::ReadOnly flag the mapped memory will be populated with the content of the buffer when initially mapped. If the map mode includes the QVideoFrame::WriteOnly flag the content of the possibly modified mapped memory will be written back to the buffer when unmapped.

When access to the data is no longer needed be sure to call the unmap() function to release the mapped memory and possibly update the buffer contents.

Returns the number of planes in the mapped video data. For each plane the line stride of that plane will be returned in bytesPerLine, and a pointer to the plane data will be returned in data. The accumulative size of the mapped data is returned in numBytes.

Not all buffer implementations will map more than the first plane, if this returns a single plane for a planar format the additional planes will have to be calculated from the line stride of the first plane and the frame height. Mapping a buffer with QVideoFrame will do this for you.

To implement this function create a derivative of QAbstractPlanarVideoBuffer and implement its map function instance instead.

Since
5.4

Implements QAbstractVideoBuffer.

Definition at line 106 of file qandroidvideooutput.cpp.

References QImage::bits(), QImage::bytesPerLine(), QVideoFrameFormat::Format_RGBA8888, mapData(), QVideoFrame::NotMapped, qImageFromVideoFrame(), QVideoFrame::ReadOnly, and QImage::sizeInBytes().

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◆ mapMode()

QVideoFrame::MapMode AndroidTextureVideoBuffer::mapMode ( ) const
inlineoverridevirtual

Implements QAbstractVideoBuffer.

Definition at line 65 of file qandroidvideooutput.cpp.

◆ mapTextures()

std::unique_ptr< QVideoFrameTextures > AndroidTextureVideoBuffer::mapTextures ( QRhi * rhi)
inlineoverridevirtual

Reimplemented from QAbstractVideoBuffer.

Definition at line 75 of file qandroidvideooutput.cpp.

References QAbstractVideoBuffer::rhi().

Referenced by ImageFromVideoFrameHelper::mapTextures().

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◆ unmap()

void AndroidTextureVideoBuffer::unmap ( )
inlineoverridevirtual

Releases the memory mapped by the map() function.

If the \l {QVideoFrame::MapMode}{MapMode} included the QVideoFrame::WriteOnly flag this will write the current content of the mapped memory back to the video frame.

See also
map()

Implements QAbstractVideoBuffer.

Definition at line 69 of file qandroidvideooutput.cpp.

References QVideoFrame::NotMapped.

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