QQnxPlatformCamera Class Reference

#include <qqnxplatformcamera_p.h>

Inheritance diagram for QQnxPlatformCamera:

Collaboration diagram for QQnxPlatformCamera:

Public Types
using	VideoFrameCallback = std::function< void(const QVideoFrame &)>

Public Member Functions
	QQnxPlatformCamera (QCamera *parent)
	~QQnxPlatformCamera ()
bool	isActive () const override
void	setActive (bool active) override
void	start ()
void	stop ()
void	setCamera (const QCameraDevice &camera) override
bool	setCameraFormat (const QCameraFormat &format) override
void	setCaptureSession (QPlatformMediaCaptureSession *session) override
bool	isFocusModeSupported (QCamera::FocusMode mode) const override
void	setFocusMode (QCamera::FocusMode mode) override
void	setCustomFocusPoint (const QPointF &point) override
void	setFocusDistance (float distance) override
void	zoomTo (float newZoomFactor, float rate=-1.) override
void	setExposureCompensation (float ev) override
int	isoSensitivity () const override
void	setManualIsoSensitivity (int value) override
void	setManualExposureTime (float seconds) override
float	exposureTime () const override
bool	isWhiteBalanceModeSupported (QCamera::WhiteBalanceMode mode) const override
void	setWhiteBalanceMode (QCamera::WhiteBalanceMode mode) override
void	setColorTemperature (int temperature) override
void	setOutputUrl (const QUrl &url)
void	setMediaEncoderSettings (const QMediaEncoderSettings &settings)
bool	startVideoRecording ()
void	requestVideoFrame (VideoFrameCallback cb)
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.

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.
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)
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 37 of file qqnxplatformcamera_p.h.

Member Typedef Documentation

VideoFrameCallback

using QQnxPlatformCamera::VideoFrameCallback = std::function<void(const QVideoFrame&)>

Definition at line 80 of file qqnxplatformcamera_p.h.

Constructor & Destructor Documentation

QQnxPlatformCamera()

QT_BEGIN_NAMESPACE QQnxPlatformCamera::QQnxPlatformCamera ( QCamera *  parent )

explicit

Definition at line 65 of file qqnxplatformcamera.cpp.

References QMediaDevices::defaultVideoInput, QObject::parent(), and setCamera().

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~QQnxPlatformCamera()

QQnxPlatformCamera::~QQnxPlatformCamera

(

)

Definition at line 74 of file qqnxplatformcamera.cpp.

References stop().

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Member Function Documentation

exposureTime()

float QQnxPlatformCamera::exposureTime ( ) const

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 259 of file qqnxplatformcamera.cpp.

isActive()

bool QQnxPlatformCamera::isActive ( ) const

overridevirtual

Implements QPlatformVideoSource.

Definition at line 79 of file qqnxplatformcamera.cpp.

Referenced by QQnxImageCapture::isReadyForCapture(), and start().

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isFocusModeSupported()

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

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 159 of file qqnxplatformcamera.cpp.

References qnxFocusMode().

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isoSensitivity()

int QQnxPlatformCamera::isoSensitivity ( ) const

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 233 of file qqnxplatformcamera.cpp.

isWhiteBalanceModeSupported()

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

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 267 of file qqnxplatformcamera.cpp.

References QCamera::WhiteBalanceAuto.

requestVideoFrame()

void QQnxPlatformCamera::requestVideoFrame

(

VideoFrameCallback

cb

)

Definition at line 350 of file qqnxplatformcamera.cpp.

References cb.

Referenced by QQnxImageCapture::capture(), and QQnxImageCapture::captureToBuffer().

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setActive()

void QQnxPlatformCamera::setActive ( bool  active )

overridevirtual

Implements QPlatformVideoSource.

Definition at line 84 of file qqnxplatformcamera.cpp.

References start(), and stop().

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setCamera()

void QQnxPlatformCamera::setCamera ( const QCameraDevice &  camera )

overridevirtual

Implements QPlatformCamera.

Definition at line 117 of file qqnxplatformcamera.cpp.

References camera, QObject::connect(), QPlatformCamera::customFocusPointChanged(), QQnxCamera::customFocusPointChanged(), QQnxCamera::focusModeChanged(), QQnxCamera::frameAvailable(), and Qt::QueuedConnection.

Referenced by QQnxPlatformCamera().

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setCameraFormat()

bool QQnxPlatformCamera::setCameraFormat ( const QCameraFormat &  format )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 138 of file qqnxplatformcamera.cpp.

References QSize::height(), QSize::isEmpty(), qWarning, and QSize::width().

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setCaptureSession()

void QQnxPlatformCamera::setCaptureSession ( QPlatformMediaCaptureSession *  session )

overridevirtual

Reimplemented from QPlatformVideoSource.

Definition at line 151 of file qqnxplatformcamera.cpp.

Referenced by QQnxMediaCaptureSession::setCamera().

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setColorTemperature()

void QQnxPlatformCamera::setColorTemperature ( int  temperature )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 288 of file qqnxplatformcamera.cpp.

Referenced by setWhiteBalanceMode().

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setCustomFocusPoint()

void QQnxPlatformCamera::setCustomFocusPoint ( const QPointF &  point )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 175 of file qqnxplatformcamera.cpp.

setExposureCompensation()

void QQnxPlatformCamera::setExposureCompensation ( float  ev )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 225 of file qqnxplatformcamera.cpp.

setFocusDistance()

void QQnxPlatformCamera::setFocusDistance ( float  distance )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 183 of file qqnxplatformcamera.cpp.

setFocusMode()

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

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 167 of file qqnxplatformcamera.cpp.

References qnxFocusMode().

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setManualExposureTime()

void QQnxPlatformCamera::setManualExposureTime ( float  seconds )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 251 of file qqnxplatformcamera.cpp.

setManualIsoSensitivity()

void QQnxPlatformCamera::setManualIsoSensitivity ( int  value )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 241 of file qqnxplatformcamera.cpp.

setMediaEncoderSettings()

void QQnxPlatformCamera::setMediaEncoderSettings

(

const QMediaEncoderSettings &

settings

)

Definition at line 365 of file qqnxplatformcamera.cpp.

References settings.

setOutputUrl()

void QQnxPlatformCamera::setOutputUrl

(

const QUrl &

url

)

Definition at line 360 of file qqnxplatformcamera.cpp.

References url.

setWhiteBalanceMode()

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

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 275 of file qqnxplatformcamera.cpp.

References QPlatformCamera::colorTemperatureForWhiteBalance(), setColorTemperature(), and QCamera::WhiteBalanceAuto.

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start()

void QQnxPlatformCamera::start

(

)

Definition at line 92 of file qqnxplatformcamera.cpp.

References QPlatformVideoSource::activeChanged(), isActive(), Q_EMIT, and QQnxMediaCaptureSession::videoSink().

Referenced by setActive().

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startVideoRecording()

bool QQnxPlatformCamera::startVideoRecording

(

)

Definition at line 316 of file qqnxplatformcamera.cpp.

References QMediaStorageLocation::generateFileName(), QMediaEncoderSettings::mimeType(), QStandardPaths::MoviesLocation, QMimeType::preferredSuffix, qDebug, qWarning, and QUrl::toLocalFile().

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stop()

void QQnxPlatformCamera::stop

(

)

Definition at line 105 of file qqnxplatformcamera.cpp.

References QPlatformVideoSource::activeChanged(), and Q_EMIT.

Referenced by ~QQnxPlatformCamera(), and setActive().

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zoomTo()

void QQnxPlatformCamera::zoomTo ( float  newZoomFactor, float  rate = -1.  )

overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 198 of file qqnxplatformcamera.cpp.

References QPlatformCamera::maxZoomFactor(), QPlatformCamera::minZoomFactor(), qBound(), qRound(), and QPlatformCamera::zoomFactorChanged().

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---

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

• qtmultimedia/src/plugins/multimedia/qnx/camera/qqnxplatformcamera_p.h
• qtmultimedia/src/plugins/multimedia/qnx/camera/qqnxplatformcamera.cpp