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QGstreamerCamera Class Reference

#include <qgstreamercamera_p.h>

Inheritance diagram for QGstreamerCamera:
Collaboration diagram for QGstreamerCamera:

Public Member Functions

 ~QGstreamerCamera () override
bool isActive () const override
void setActive (bool active) override
void setCamera (const QCameraDevice &camera) override
bool setCameraFormat (const QCameraFormat &format) override
QGstElement gstElement () const override
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
Public Member Functions inherited from QGstreamerCameraBase
 QPlatformCamera (QCamera *parent)
Public Member Functions inherited from QPlatformCamera
QCameraFormat cameraFormat () const
virtual void setCustomFocusPoint (const QPointF &)
virtual void setFocusDistance (float)
virtual void zoomTo (float, float=-1.)
virtual void setTorchMode (QCamera::TorchMode)
virtual bool isTorchModeSupported (QCamera::TorchMode mode) const
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)
QCamera::Error error () const
QString errorString () const final
void updateError (QCamera::Error error, const QString &errorString)
Public Member Functions inherited from QPlatformVideoSource
virtual std::optional< int > ffmpegHWPixelFormat () const
virtual void setCaptureSession (QPlatformMediaCaptureSession *)
bool hasError () const
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< 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 isQmlObjectType () const
 Returns whether the object has been created by the QML engine or ownership has been explicitly set via QJSEngine::setObjectOwnership().
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 q23::expected< QPlatformCamera *, QStringcreate (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 errorOccurred (QCamera::Error error, const QString &errorString)
Signals inherited from QPlatformVideoSource
void newVideoFrame (const QVideoFrame &)
void activeChanged (bool)
void errorChanged ()
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, QVideoFrameFormat::ColorRange) const
QCameraFormat findBestCameraFormat (const QCameraDevice &camera) const
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)
Static Protected Member Functions inherited from QPlatformCamera
static constexpr int defaultColorTemperature ()
static constexpr QPointF defaultCustomFocusPoint ()
static constexpr float defaultExposureCompensation ()
static constexpr QCamera::ExposureMode defaultExposureMode ()
static constexpr float defaultExposureTime ()
static constexpr QCamera::FlashMode defaultFlashMode ()
static constexpr bool defaultFlashReady ()
static constexpr float defaultFocusDistance ()
static constexpr QCamera::FocusMode defaultFocusMode ()
static constexpr int defaultIso ()
static constexpr QCamera::TorchMode defaultTorchMode ()
static constexpr QCamera::WhiteBalanceMode defaultWhiteBalanceMode ()
static constexpr float defaultZoomFactor ()
Protected Attributes inherited from QPlatformCamera
QCameraFormat m_cameraFormat
QVideoFrameFormat::PixelFormat m_framePixelFormat = QVideoFrameFormat::Format_Invalid
Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
Properties inherited from QObject
QString objectName
 the name of this object

Detailed Description

Definition at line 37 of file qgstreamercamera_p.h.

Constructor & Destructor Documentation

◆ ~QGstreamerCamera()

QGstreamerCamera::~QGstreamerCamera ( )
override

Definition at line 59 of file qgstreamercamera.cpp.

Member Function Documentation

◆ create()

QT_BEGIN_NAMESPACE q23::expected< QPlatformCamera *, QString > QGstreamerCamera::create ( QCamera * camera)
static

Definition at line 23 of file qgstreamercamera.cpp.

◆ exposureTime()

float QGstreamerCamera::exposureTime ( ) const
overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 475 of file qgstreamercamera.cpp.

◆ gstElement()

QGstElement QGstreamerCamera::gstElement ( ) const
inlineoverridevirtual

Implements QGstreamerCameraBase.

Definition at line 50 of file qgstreamercamera_p.h.

◆ isActive()

bool QGstreamerCamera::isActive ( ) const
overridevirtual

Implements QPlatformVideoSource.

Definition at line 64 of file qgstreamercamera.cpp.

◆ isExposureModeSupported()

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

Reimplemented from QPlatformCamera.

Definition at line 377 of file qgstreamercamera.cpp.

◆ isFlashModeSupported()

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

Reimplemented from QPlatformCamera.

Definition at line 275 of file qgstreamercamera.cpp.

◆ isFlashReady()

bool QGstreamerCamera::isFlashReady ( ) const
overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 285 of file qgstreamercamera.cpp.

◆ isFocusModeSupported()

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

Reimplemented from QPlatformCamera.

Definition at line 239 of file qgstreamercamera.cpp.

◆ isoSensitivity()

int QGstreamerCamera::isoSensitivity ( ) const
overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 436 of file qgstreamercamera.cpp.

◆ isWhiteBalanceModeSupported()

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

Reimplemented from QPlatformCamera.

Definition at line 492 of file qgstreamercamera.cpp.

◆ setActive()

void QGstreamerCamera::setActive ( bool active)
overridevirtual

Implements QPlatformVideoSource.

Definition at line 69 of file qgstreamercamera.cpp.

◆ setCamera()

void QGstreamerCamera::setCamera ( const QCameraDevice & camera)
overridevirtual

Implements QPlatformCamera.

Definition at line 81 of file qgstreamercamera.cpp.

References QGstElement::createFromFactory(), QGstCaps::fromCameraFormat(), QGstreamerIntegration::instance(), and QGstElement::operator=().

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◆ setCameraFormat()

bool QGstreamerCamera::setCameraFormat ( const QCameraFormat & format)
overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 141 of file qgstreamercamera.cpp.

References QGstCaps::fromCameraFormat().

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◆ setColorTemperature()

void QGstreamerCamera::setColorTemperature ( int temperature)
overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 579 of file qgstreamercamera.cpp.

◆ setExposureCompensation()

void QGstreamerCamera::setExposureCompensation ( float compensation)
overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 393 of file qgstreamercamera.cpp.

◆ setExposureMode()

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

Reimplemented from QPlatformCamera.

Definition at line 295 of file qgstreamercamera.cpp.

◆ setFlashMode()

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

Reimplemented from QPlatformCamera.

Definition at line 248 of file qgstreamercamera.cpp.

◆ setFocusMode()

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

Reimplemented from QPlatformCamera.

Definition at line 203 of file qgstreamercamera.cpp.

◆ setManualExposureTime()

void QGstreamerCamera::setManualExposureTime ( float secs)
overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 455 of file qgstreamercamera.cpp.

◆ setManualIsoSensitivity()

void QGstreamerCamera::setManualIsoSensitivity ( int iso)
overridevirtual

Reimplemented from QPlatformCamera.

Definition at line 413 of file qgstreamercamera.cpp.

◆ setWhiteBalanceMode()

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

Reimplemented from QPlatformCamera.

Definition at line 530 of file qgstreamercamera.cpp.


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