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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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QGstreamerImageCapture Class Reference

#include <qgstreamerimagecapture_p.h>

+ Inheritance diagram for QGstreamerImageCapture:
+ Collaboration diagram for QGstreamerImageCapture:

Public Slots

void cameraActiveChanged (bool active)
 
void onCameraChanged ()
 
- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 

Public Member Functions

virtual ~QGstreamerImageCapture ()
 
bool isReadyForCapture () const override
 
int capture (const QString &fileName) override
 
int captureToBuffer () override
 
QImageEncoderSettings imageSettings () const override
 
void setImageSettings (const QImageEncoderSettings &settings) override
 
bool probeBuffer (GstBuffer *buffer) override
 
void setCaptureSession (QPlatformMediaCaptureSession *session)
 
QGstElement gstElement () const
 
void setMetaData (const QMediaMetaData &m) override
 
- Public Member Functions inherited from QPlatformImageCapture
QMediaMetaData metaData () const
 
QImageCaptureimageCapture ()
 
- 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< QStringbindableObjectName ()
 
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).
 
QThreadthread () 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 >
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 >
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 QObjectListchildren () 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< QByteArraydynamicPropertyNames () const
 
QBindingStoragebindingStorage ()
 
const QBindingStoragebindingStorage () const
 
QObjectparent () 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.
 

Static Public Member Functions

static QMaybe< QPlatformImageCapture * > create (QImageCapture *parent)
 
- Static Public Member Functions inherited from QPlatformImageCapture
static QString msgCameraNotReady ()
 
static QString msgImageCaptureNotSet ()
 
- 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)
 

Additional Inherited Members

- Signals inherited from QPlatformImageCapture
void readyForCaptureChanged (bool ready)
 
void imageExposed (int requestId)
 
void imageCaptured (int requestId, const QImage &preview)
 
void imageMetadataAvailable (int id, const QMediaMetaData &)
 
void imageAvailable (int requestId, const QVideoFrame &buffer)
 
void imageSaved (int requestId, const QString &fileName)
 
void error (int id, int error, const QString &errorString)
 
- 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.
 
- Protected Member Functions inherited from QPlatformImageCapture
 QPlatformImageCapture (QImageCapture *parent=nullptr)
 
- Protected Member Functions inherited from QObject
QObjectsender () 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< QObjectDatad_ptr
 
- Properties inherited from QObject
QString objectName
 the name of this object
 

Detailed Description

Definition at line 31 of file qgstreamerimagecapture_p.h.

Constructor & Destructor Documentation

◆ ~QGstreamerImageCapture()

QGstreamerImageCapture::~QGstreamerImageCapture ( )
virtual

Definition at line 77 of file qgstreamerimagecapture.cpp.

References QGstElement::setStateSync().

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Member Function Documentation

◆ cameraActiveChanged

void QGstreamerImageCapture::cameraActiveChanged ( bool active)
slot

Definition at line 258 of file qgstreamerimagecapture.cpp.

References emit, isReadyForCapture(), qCDebug, and QPlatformImageCapture::readyForCaptureChanged().

Referenced by onCameraChanged().

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◆ capture()

int QGstreamerImageCapture::capture ( const QString & fileName)
overridevirtual

Implements QPlatformImageCapture.

Definition at line 88 of file qgstreamerimagecapture.cpp.

References fileName, QMediaStorageLocation::generateFileName(), and QStandardPaths::PicturesLocation.

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◆ captureToBuffer()

int QGstreamerImageCapture::captureToBuffer ( )
overridevirtual

Implements QPlatformImageCapture.

Definition at line 96 of file qgstreamerimagecapture.cpp.

◆ create()

static QMaybe< QPlatformImageCapture * > QGstreamerImageCapture::create ( QImageCapture * parent)
static

Referenced by QGstreamerIntegration::createImageCapture().

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◆ gstElement()

QGstElement QGstreamerImageCapture::gstElement ( ) const
inline

Definition at line 50 of file qgstreamerimagecapture_p.h.

Referenced by QGstreamerMediaCapture::setImageCapture().

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◆ imageSettings()

QImageEncoderSettings QGstreamerImageCapture::imageSettings ( ) const
overridevirtual

Implements QPlatformImageCapture.

Definition at line 319 of file qgstreamerimagecapture.cpp.

◆ isReadyForCapture()

bool QGstreamerImageCapture::isReadyForCapture ( ) const
overridevirtual

Implements QPlatformImageCapture.

Definition at line 82 of file qgstreamerimagecapture.cpp.

Referenced by cameraActiveChanged(), probeBuffer(), and setCaptureSession().

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◆ onCameraChanged

void QGstreamerImageCapture::onCameraChanged ( )
slot

Definition at line 268 of file qgstreamerimagecapture.cpp.

References QPlatformVideoSource::activeChanged(), QGstreamerMediaCapture::camera(), cameraActiveChanged(), QObject::connect(), and QPlatformVideoSource::isActive().

Referenced by setCaptureSession().

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◆ probeBuffer()

◆ setCaptureSession()

void QGstreamerImageCapture::setCaptureSession ( QPlatformMediaCaptureSession * session)

Definition at line 219 of file qgstreamerimagecapture.cpp.

References QPlatformMediaCaptureSession::cameraChanged(), QList< T >::clear(), QObject::connect(), disconnect(), emit, isReadyForCapture(), onCameraChanged(), and QPlatformImageCapture::readyForCaptureChanged().

Referenced by QGstreamerMediaCapture::setImageCapture().

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◆ setImageSettings()

void QGstreamerImageCapture::setImageSettings ( const QImageEncoderSettings & settings)
overridevirtual

Implements QPlatformImageCapture.

Definition at line 324 of file qgstreamerimagecapture.cpp.

References QSize::isEmpty(), QImageEncoderSettings::resolution(), and settings.

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◆ setMetaData()

void QGstreamerImageCapture::setMetaData ( const QMediaMetaData & m)
overridevirtual

Reimplemented from QPlatformImageCapture.

Definition at line 247 of file qgstreamerimagecapture.cpp.

References applyMetaDataToTagSetter(), and QPlatformImageCapture::setMetaData().

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