#include <qgstreamercamera_p.h>

Inheritance diagram for QGstreamerCamera:

Collaboration diagram for QGstreamerCamera:

Public Member Functions
virtual	~QGstreamerCamera ()

bool	isActive () const override

void	setActive (bool active) override

void	setCamera (const QCameraDevice &camera) override

bool	setCameraFormat (const QCameraFormat &format) override

QGstElement	gstElement () const

void	setFocusMode (QCamera::FocusMode mode) override

bool	isFocusModeSupported (QCamera::FocusMode mode) const override

void	setFlashMode (QCamera::FlashMode mode) override

bool	isFlashModeSupported (QCamera::FlashMode mode) const override

bool	isFlashReady () const override

void	setExposureMode (QCamera::ExposureMode) override

bool	isExposureModeSupported (QCamera::ExposureMode mode) const override

void	setExposureCompensation (float) override

void	setManualIsoSensitivity (int) override

int	isoSensitivity () const override

void	setManualExposureTime (float) override

float	exposureTime () const override

bool	isWhiteBalanceModeSupported (QCamera::WhiteBalanceMode mode) const override

void	setWhiteBalanceMode (QCamera::WhiteBalanceMode mode) override

void	setColorTemperature (int temperature) override

QString	v4l2Device () const

bool	isV4L2Camera () const

Public Member Functions inherited from QPlatformCamera
virtual void	setCamera (const QCameraDevice &camera)=0

virtual bool	setCameraFormat (const QCameraFormat &)

QCameraFormat	cameraFormat () const

virtual bool	isFocusModeSupported (QCamera::FocusMode mode) const

virtual void	setFocusMode (QCamera::FocusMode)

virtual void	setCustomFocusPoint (const QPointF &)

virtual void	setFocusDistance (float)

virtual void	zoomTo (float, float=-1.)

virtual void	setFlashMode (QCamera::FlashMode)

virtual bool	isFlashModeSupported (QCamera::FlashMode mode) const

virtual bool	isFlashReady () const

virtual void	setTorchMode (QCamera::TorchMode)

virtual bool	isTorchModeSupported (QCamera::TorchMode mode) const

virtual void	setExposureMode (QCamera::ExposureMode)

virtual bool	isExposureModeSupported (QCamera::ExposureMode mode) const

virtual void	setExposureCompensation (float)

virtual int	isoSensitivity () const

virtual void	setManualIsoSensitivity (int)

virtual void	setManualExposureTime (float)

virtual float	exposureTime () const

virtual bool	isWhiteBalanceModeSupported (QCamera::WhiteBalanceMode mode) const

virtual void	setWhiteBalanceMode (QCamera::WhiteBalanceMode)

virtual void	setColorTemperature (int)

QVideoFrameFormat	frameFormat () const override

QCamera::Features	supportedFeatures () const

QCamera::FocusMode	focusMode () const

QPointF	focusPoint () const

float	minZoomFactor () const

float	maxZoomFactor () const

float	zoomFactor () const

QPointF	customFocusPoint () const

float	focusDistance () const

QCamera::FlashMode	flashMode () const

QCamera::TorchMode	torchMode () const

QCamera::ExposureMode	exposureMode () const

float	exposureCompensation () const

int	manualIsoSensitivity () const

int	minIso () const

int	maxIso () const

float	manualExposureTime () const

float	minExposureTime () const

float	maxExposureTime () const

QCamera::WhiteBalanceMode	whiteBalanceMode () const

int	colorTemperature () const

void	supportedFeaturesChanged (QCamera::Features)

void	minimumZoomFactorChanged (float factor)

void	maximumZoomFactorChanged (float)

void	focusModeChanged (QCamera::FocusMode mode)

void	customFocusPointChanged (const QPointF &point)

void	focusDistanceChanged (float d)

void	zoomFactorChanged (float zoom)

void	flashReadyChanged (bool)

void	flashModeChanged (QCamera::FlashMode mode)

void	torchModeChanged (QCamera::TorchMode mode)

void	exposureModeChanged (QCamera::ExposureMode mode)

void	exposureCompensationChanged (float compensation)

void	exposureCompensationRangeChanged (float min, float max)

void	isoSensitivityChanged (int iso)

void	minIsoChanged (int iso)

void	maxIsoChanged (int iso)

void	exposureTimeChanged (float speed)

void	minExposureTimeChanged (float secs)

void	maxExposureTimeChanged (float secs)

void	whiteBalanceModeChanged (QCamera::WhiteBalanceMode mode)

void	colorTemperatureChanged (int temperature)

Public Member Functions inherited from QPlatformVideoSource
virtual void	setActive (bool active)=0

virtual bool	isActive () const =0

virtual QVideoFrameFormat	frameFormat () const =0

virtual std::optional< int >	ffmpegHWPixelFormat () const

virtual void	setCaptureSession (QPlatformMediaCaptureSession *)

Q_INVOKABLE	QObject (QObject *parent=nullptr)
	Constructs an object with parent object parent.

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

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.

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children.

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::milliseconds time, Qt::TimerType timerType=Qt::CoarseTimer)

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

template<typename T >
T	findChild (const QString &aName=QString(), 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 (const QString &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 >
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`.

Static Public Member Functions
static QMaybe< QPlatformCamera * >	create (QCamera *camera)

Static Public Member Functions inherited from QPlatformCamera
static int	colorTemperatureForWhiteBalance (QCamera::WhiteBalanceMode mode)

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
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

Signals inherited from QPlatformCamera
void	error (int error, const QString &errorString)

Signals inherited from QPlatformVideoSource
void	newVideoFrame (const QVideoFrame &)

void	activeChanged (bool)

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 QPlatformCamera
	QPlatformCamera (QCamera *parent)

virtual int	cameraPixelFormatScore (QVideoFrameFormat::PixelFormat) const

QCameraFormat	findBestCameraFormat (const QCameraDevice &camera) const

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 QPlatformCamera
QCameraFormat	m_cameraFormat

QVideoFrameFormat::PixelFormat	m_framePixelFormat = QVideoFrameFormat::Format_Invalid

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 26 of file qgstreamercamera_p.h.

Constructor & Destructor Documentation

◆ ~QGstreamerCamera()

QGstreamerCamera::~QGstreamerCamera ( )

virtual

Definition at line 58 of file qgstreamercamera.cpp.

References qt_safe_close(), and QGstElement::setStateSync().

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Member Function Documentation

◆ create()

QT_BEGIN_NAMESPACE QMaybe< QPlatformCamera * > QGstreamerCamera::create ( QCamera * camera )

static

Definition at line 21 of file qgstreamercamera.cpp.

References camera, and errorMessageCannotFindElement().

Referenced by QGstreamerIntegration::createCamera().

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◆ exposureTime()

float QGstreamerCamera::exposureTime ( ) const

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 477 of file qgstreamercamera.cpp.

References isV4L2Camera().

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◆ gstElement()

QGstElement QGstreamerCamera::gstElement ( ) const

inline

Definition at line 40 of file qgstreamercamera_p.h.

References QGstElement::element().

Referenced by QGstreamerMediaCapture::setCamera().

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◆ isActive()

bool QGstreamerCamera::isActive ( ) const

overridevirtual

Implements QPlatformVideoSource.

Definition at line 68 of file qgstreamercamera.cpp.

◆ isExposureModeSupported()

bool QGstreamerCamera::isExposureModeSupported ( QCamera::ExposureMode mode ) const

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 379 of file qgstreamercamera.cpp.

References QCamera::ExposureAuto, QCamera::ExposureManual, and isV4L2Camera().

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◆ isFlashModeSupported()

bool QGstreamerCamera::isFlashModeSupported ( QCamera::FlashMode mode ) const

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 277 of file qgstreamercamera.cpp.

References QCamera::FlashAuto.

◆ isFlashReady()

bool QGstreamerCamera::isFlashReady ( ) const

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 287 of file qgstreamercamera.cpp.

◆ isFocusModeSupported()

bool QGstreamerCamera::isFocusModeSupported ( QCamera::FocusMode mode ) const

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 241 of file qgstreamercamera.cpp.

References QCamera::FocusModeAuto.

◆ isoSensitivity()

int QGstreamerCamera::isoSensitivity ( ) const

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 438 of file qgstreamercamera.cpp.

References QCamera::IsoSensitivity, isV4L2Camera(), and QPlatformCamera::supportedFeatures().

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◆ isV4L2Camera()

bool QGstreamerCamera::isV4L2Camera ( ) const

inline

Definition at line 65 of file qgstreamercamera_p.h.

References QString::isEmpty().

Referenced by exposureTime(), isExposureModeSupported(), isoSensitivity(), isWhiteBalanceModeSupported(), setColorTemperature(), setExposureCompensation(), setExposureMode(), setManualExposureTime(), setManualIsoSensitivity(), and setWhiteBalanceMode().

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◆ isWhiteBalanceModeSupported()

bool QGstreamerCamera::isWhiteBalanceModeSupported ( QCamera::WhiteBalanceMode mode ) const

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 494 of file qgstreamercamera.cpp.

References isV4L2Camera(), Q_UNUSED, QCamera::WhiteBalanceAuto, QCamera::WhiteBalanceCloudy, QCamera::WhiteBalanceFluorescent, QCamera::WhiteBalanceManual, QCamera::WhiteBalanceShade, QCamera::WhiteBalanceSunlight, QCamera::WhiteBalanceSunset, and QCamera::WhiteBalanceTungsten.

Referenced by setColorTemperature(), and setWhiteBalanceMode().

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◆ setActive()

void QGstreamerCamera::setActive ( bool active )

overridevirtual

Implements QPlatformVideoSource.

Definition at line 73 of file qgstreamercamera.cpp.

References QPlatformVideoSource::activeChanged(), emit, and QCameraDevice::isNull().

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◆ setCamera()

void QGstreamerCamera::setCamera ( const QCameraDevice & camera )

overridevirtual

Implements QPlatformCamera.

Definition at line 85 of file qgstreamercamera.cpp.

References QGstBin::add(), camera, device, QPlatformCamera::findBestCameraFormat(), QVideoFrameFormat::Format_Jpeg, QGstCaps::fromCameraFormat(), QString::fromUtf8(), QGstreamerIntegration::instance(), QGstElement::link(), QGstObject::name(), QCssKnownValue::name, properties, qWarning, QGstBin::remove(), QGstObject::set(), QGstElement::setStateSync(), QGstElement::syncStateWithParent(), toString(), and QGstElement::unlink().

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◆ setCameraFormat()

bool QGstreamerCamera::setCameraFormat ( const QCameraFormat & format )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 142 of file qgstreamercamera.cpp.

References QGstBin::add(), QListSpecialMethodsBase< T >::contains(), QGstPad::doInIdleProbe(), QPlatformCamera::findBestCameraFormat(), QVideoFrameFormat::Format_Jpeg, QGstCaps::fromCameraFormat(), QGstElement::link(), QGstObject::name(), qWarning, QGstBin::remove(), QGstObject::set(), QGstElement::setStateSync(), QGstElement::staticPad(), QGstElement::unlink(), and QCameraDevice::videoFormats.

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◆ setColorTemperature()

void QGstreamerCamera::setColorTemperature ( int temperature )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 583 of file qgstreamercamera.cpp.

References QPlatformCamera::colorTemperatureChanged(), isV4L2Camera(), isWhiteBalanceModeSupported(), Q_ASSERT, setWhiteBalanceMode(), QCamera::WhiteBalanceAuto, and QCamera::WhiteBalanceManual.

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◆ setExposureCompensation()

void QGstreamerCamera::setExposureCompensation ( float compensation )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 395 of file qgstreamercamera.cpp.

References QPlatformCamera::exposureCompensationChanged(), isV4L2Camera(), Q_UNUSED, and qBound().

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◆ setExposureMode()

void QGstreamerCamera::setExposureMode ( QCamera::ExposureMode mode )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 297 of file qgstreamercamera.cpp.

References QCamera::ExposureAction, QCamera::ExposureAuto, QCamera::ExposureBarcode, QCamera::ExposureBeach, QCamera::ExposureCandlelight, QCamera::ExposureFireworks, QCamera::ExposureLandscape, QCamera::ExposureManual, QPlatformCamera::exposureModeChanged(), QCamera::ExposureNight, QCamera::ExposureNightPortrait, QCamera::ExposureParty, QCamera::ExposurePortrait, QCamera::ExposureSnow, QCamera::ExposureSports, QCamera::ExposureSteadyPhoto, QCamera::ExposureSunset, QCamera::ExposureTheatre, isV4L2Camera(), and Q_UNUSED.

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◆ setFlashMode()

void QGstreamerCamera::setFlashMode ( QCamera::FlashMode mode )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 250 of file qgstreamercamera.cpp.

References QCamera::FlashAuto, QPlatformCamera::flashMode(), QPlatformCamera::flashModeChanged(), QCamera::FlashOff, QCamera::FlashOn, and Q_UNUSED.

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◆ setFocusMode()

void QGstreamerCamera::setFocusMode ( QCamera::FocusMode mode )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 205 of file qgstreamercamera.cpp.

References QPlatformCamera::focusMode(), QCamera::FocusModeAutoFar, QCamera::FocusModeAutoNear, QPlatformCamera::focusModeChanged(), QCamera::FocusModeHyperfocal, QCamera::FocusModeInfinity, QCamera::FocusModeManual, and Q_FALLTHROUGH.

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◆ setManualExposureTime()

void QGstreamerCamera::setManualExposureTime ( float secs )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 457 of file qgstreamercamera.cpp.

References QPlatformCamera::exposureTimeChanged(), isV4L2Camera(), Q_UNUSED, qBound(), and qRound().

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◆ setManualIsoSensitivity()

void QGstreamerCamera::setManualIsoSensitivity ( int iso )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 415 of file qgstreamercamera.cpp.

References QCamera::IsoSensitivity, QPlatformCamera::isoSensitivityChanged(), isV4L2Camera(), QPlatformCamera::maxIso(), QPlatformCamera::minIso(), Q_UNUSED, qBound(), and QPlatformCamera::supportedFeatures().

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◆ setWhiteBalanceMode()

void QGstreamerCamera::setWhiteBalanceMode ( QCamera::WhiteBalanceMode mode )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 534 of file qgstreamercamera.cpp.

References QPlatformCamera::colorTemperatureForWhiteBalance(), isV4L2Camera(), isWhiteBalanceModeSupported(), Q_ASSERT, QCamera::WhiteBalanceAuto, QCamera::WhiteBalanceCloudy, QCamera::WhiteBalanceFluorescent, QPlatformCamera::whiteBalanceModeChanged(), QCamera::WhiteBalanceShade, QCamera::WhiteBalanceSunlight, QCamera::WhiteBalanceSunset, and QCamera::WhiteBalanceTungsten.

Referenced by setColorTemperature().

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◆ v4l2Device()

QString QGstreamerCamera::v4l2Device ( ) const

inline

Definition at line 64 of file qgstreamercamera_p.h.

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

qtmultimedia/src/plugins/multimedia/gstreamer/mediacapture/qgstreamercamera_p.h
qtmultimedia/src/plugins/multimedia/gstreamer/mediacapture/qgstreamercamera.cpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ~QGstreamerCamera()

Member Function Documentation

◆ create()

◆ exposureTime()

◆ gstElement()

◆ isActive()

◆ isExposureModeSupported()

◆ isFlashModeSupported()

◆ isFlashReady()

◆ isFocusModeSupported()

◆ isoSensitivity()

◆ isV4L2Camera()

◆ isWhiteBalanceModeSupported()

◆ setActive()

◆ setCamera()

◆ setCameraFormat()

◆ setColorTemperature()

◆ setExposureCompensation()

◆ setExposureMode()

◆ setFlashMode()

◆ setFocusMode()

◆ setManualExposureTime()

◆ setManualIsoSensitivity()

◆ setWhiteBalanceMode()

◆ v4l2Device()