#include <qwasmvideooutput_p.h>

Inheritance diagram for QWasmVideoOutput:

Collaboration diagram for QWasmVideoOutput:

Public Types
enum	WasmVideoMode { VideoOutput , Camera }

Signals
void	readyChanged (bool)

void	bufferingChanged (qint32 percent)

void	errorOccured (qint32 code, const QString &message)

void	stateChanged (QWasmMediaPlayer::QWasmMediaPlayerState newState)

void	progressChanged (qint32 position)

void	durationChanged (qint64 duration)

void	statusChanged (QMediaPlayer::MediaStatus status)

void	sizeChange (qint32 width, qint32 height)

void	metaDataLoaded ()

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.

Public Member Functions
	QWasmVideoOutput (QObject *parent=nullptr)

void	setVideoSize (const QSize &)

void	start ()

void	stop ()

void	reset ()

void	pause ()

void	setSurface (QVideoSink *surface)

emscripten::val	surfaceElement ()

bool	isReady () const

void	setSource (const QUrl &url)

void	setSource (QIODevice *stream)

void	setVolume (qreal volume)

void	setMuted (bool muted)

qint64	getCurrentPosition ()

void	seekTo (qint64 position)

bool	isVideoSeekable ()

void	setPlaybackRate (qreal rate)

qreal	playbackRate ()

qint64	getDuration ()

void	newFrame (const QVideoFrame &newFrame)

void	createVideoElement (const std::string &id)

void	createOffscreenElement (const QSize &offscreenSize)

void	doElementCallbacks ()

void	updateVideoElementGeometry (const QRect &windowGeometry)

void	addSourceElement (const QString &urlString)

void	addCameraSourceElement (const std::string &id)

void	removeSourceElement ()

void	setVideoMode (QWasmVideoOutput::WasmVideoMode mode)

void	setHasAudio (bool needsAudio)

bool	hasCapability (const QString &cap)

emscripten::val	getDeviceCapabilities ()

bool	setDeviceSetting (const std::string &key, emscripten::val value)

bool	isCameraReady ()

void	videoFrameTimerCallback ()

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 void	videoFrameCallback (emscripten::val now, emscripten::val metadata)

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)

Public Attributes
QVideoSink *	m_wasmSink = nullptr

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

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 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 35 of file qwasmvideooutput_p.h.

Member Enumeration Documentation

◆ WasmVideoMode

enum QWasmVideoOutput::WasmVideoMode

Enumerator
VideoOutput
Camera

Definition at line 39 of file qwasmvideooutput_p.h.

Constructor & Destructor Documentation

◆ QWasmVideoOutput()

QWasmVideoOutput::QWasmVideoOutput ( QObject * parent = nullptr )

explicit

Member Function Documentation

◆ addCameraSourceElement()

void QWasmVideoOutput::addCameraSourceElement ( const std::string & id )

Definition at line 265 of file qwasmvideooutput.cpp.

References emit, error, errorOccured(), QString::fromStdString(), qstdweb::Promise::make(), qCDebug, QStringLiteral, qWarning, QMediaPlayer::ResourceError, and qstdweb::PromiseCallbacks::thenFunc.

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◆ addSourceElement()

void QWasmVideoOutput::addSourceElement ( const QString & urlString )

Definition at line 249 of file qwasmvideooutput.cpp.

References emit, errorOccured(), QString::isEmpty(), QStringLiteral, QMediaPlayer::ResourceError, and QString::toStdString().

Referenced by setSource().

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◆ bufferingChanged

void QWasmVideoOutput::bufferingChanged ( qint32 percent )

signal

Referenced by doElementCallbacks().

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◆ createOffscreenElement()

void QWasmVideoOutput::createOffscreenElement ( const QSize & offscreenSize )

Definition at line 461 of file qwasmvideooutput.cpp.

References QSize::height(), m_videoSurfaceId, Q_FUNC_INFO, qCDebug, and QSize::width().

Referenced by QWasmCamera::setCamera().

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◆ createVideoElement()

void QWasmVideoOutput::createVideoElement ( const std::string & id )

Definition at line 405 of file qwasmvideooutput.cpp.

References Camera, m_videoSurfaceId, Q_FUNC_INFO, qCDebug, and QString::toStdString().

Referenced by QWasmCamera::setCamera().

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◆ doElementCallbacks()

void QWasmVideoOutput::doElementCallbacks ( )

Definition at line 499 of file qwasmvideooutput.cpp.

References QMediaPlayer::BufferedMedia, bufferingChanged(), QMediaPlayer::BufferingMedia, currentTime(), durationChanged(), emit, QMediaPlayer::EndOfMedia, errorOccured(), QString::fromStdString(), QMediaPlayer::LoadedMedia, QMediaPlayer::LoadingMedia, metaDataLoaded(), QWasmMediaPlayer::Paused, QWasmMediaPlayer::Prepared, QWasmMediaPlayer::Preparing, progressChanged(), Q_FUNC_INFO, Q_UNUSED, qCDebug, readyChanged(), QScopedPointer< T, Cleanup >::reset(), sizeChange(), QMediaPlayer::StalledMedia, QWasmMediaPlayer::Started, stateChanged(), statusChanged(), stop(), QWasmMediaPlayer::Stopped, updateVideoElementGeometry(), videoFrameTimerCallback(), and window().

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◆ durationChanged

void QWasmVideoOutput::durationChanged ( qint64 duration )

signal

Referenced by doElementCallbacks().

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◆ errorOccured

void QWasmVideoOutput::errorOccured	(	qint32	code,
		const QString &	message
	)

signal

Referenced by addCameraSourceElement(), addSourceElement(), doElementCallbacks(), getDeviceCapabilities(), isVideoSeekable(), pause(), setMuted(), setSource(), setSource(), start(), and stop().

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◆ getCurrentPosition()

qint64 QWasmVideoOutput::getCurrentPosition ( )

Definition at line 357 of file qwasmvideooutput.cpp.

Referenced by QWasmMediaPlayer::position().

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◆ getDeviceCapabilities()

emscripten::val QWasmVideoOutput::getDeviceCapabilities ( )

Definition at line 1019 of file qwasmvideooutput.cpp.

References emit, errorOccured(), QStringLiteral, and QMediaPlayer::ResourceError.

Referenced by QWasmCamera::isExposureModeSupported(), QWasmCamera::isFocusModeSupported(), QWasmCamera::isoSensitivity(), QWasmCamera::isTorchModeSupported(), QWasmCamera::isWhiteBalanceModeSupported(), QWasmCamera::setColorTemperature(), QWasmCamera::setExposureCompensation(), QWasmCamera::setManualExposureTime(), and QWasmCamera::setManualIsoSensitivity().

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◆ getDuration()

qint64 QWasmVideoOutput::getDuration ( )

Definition at line 789 of file qwasmvideooutput.cpp.

Referenced by QWasmMediaPlayer::duration().

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◆ hasCapability()

bool QWasmVideoOutput::hasCapability ( const QString & cap )

◆ isCameraReady()

bool QWasmVideoOutput::isCameraReady ( )

inline

Definition at line 83 of file qwasmvideooutput_p.h.

◆ isReady()

bool QWasmVideoOutput::isReady ( ) const

Definition at line 204 of file qwasmvideooutput.cpp.

◆ isVideoSeekable()

bool QWasmVideoOutput::isVideoSeekable ( )

Definition at line 386 of file qwasmvideooutput.cpp.

References emit, errorOccured(), qFuzzyCompare(), QStringLiteral, and QMediaPlayer::ResourceError.

Referenced by QWasmMediaPlayer::isSeekable(), and seekTo().

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◆ metaDataLoaded

void QWasmVideoOutput::metaDataLoaded ( )

signal

Referenced by doElementCallbacks().

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◆ newFrame()

void QWasmVideoOutput::newFrame ( const QVideoFrame & newFrame )

Definition at line 799 of file qwasmvideooutput.cpp.

References frame, m_wasmSink, and QVideoSink::setVideoFrame().

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◆ pause()

void QWasmVideoOutput::pause ( )

Definition at line 165 of file qwasmvideooutput.cpp.

References emit, errorOccured(), Q_FUNC_INFO, qCDebug, QStringLiteral, and QMediaPlayer::ResourceError.

Referenced by QWasmMediaPlayer::pause(), and QWasmCamera::setActive().

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◆ playbackRate()

qreal QWasmVideoOutput::playbackRate ( )

Definition at line 809 of file qwasmvideooutput.cpp.

Referenced by QWasmMediaPlayer::playbackRate().

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◆ progressChanged

void QWasmVideoOutput::progressChanged ( qint32 position )

signal

Referenced by doElementCallbacks().

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◆ readyChanged

void QWasmVideoOutput::readyChanged ( bool )

signal

Referenced by doElementCallbacks().

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◆ removeSourceElement()

void QWasmVideoOutput::removeSourceElement ( )

◆ reset()

void QWasmVideoOutput::reset ( )

Definition at line 179 of file qwasmvideooutput.cpp.

References m_wasmSink, QVideoSink::platformVideoSink(), and QPlatformVideoSink::setVideoFrame().

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◆ seekTo()

void QWasmVideoOutput::seekTo ( qint64 position )

Definition at line 364 of file qwasmvideooutput.cpp.

References isVideoSeekable(), and qCDebug.

Referenced by QWasmMediaPlayer::setPosition().

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◆ setDeviceSetting()

bool QWasmVideoOutput::setDeviceSetting	(	const std::string &	key,
		emscripten::val	value
	)

Definition at line 1048 of file qwasmvideooutput.cpp.

Referenced by QWasmCamera::setColorTemperature(), QWasmCamera::setExposureCompensation(), QWasmCamera::setExposureMode(), QWasmCamera::setFocusMode(), QWasmCamera::setManualExposureTime(), QWasmCamera::setManualIsoSensitivity(), QWasmCamera::setTorchMode(), and QWasmCamera::setWhiteBalanceMode().

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◆ setHasAudio()

void QWasmVideoOutput::setHasAudio ( bool needsAudio )

inline

Definition at line 78 of file qwasmvideooutput_p.h.

◆ setMuted()

void QWasmVideoOutput::setMuted ( bool muted )

Definition at line 347 of file qwasmvideooutput.cpp.

References emit, errorOccured(), QStringLiteral, and QMediaPlayer::ResourceError.

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◆ setPlaybackRate()

void QWasmVideoOutput::setPlaybackRate ( qreal rate )

Definition at line 804 of file qwasmvideooutput.cpp.

Referenced by QWasmMediaPlayer::setPlaybackRate().

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◆ setSource() [1/2]

void QWasmVideoOutput::setSource ( const QUrl & url )

Definition at line 218 of file qwasmvideooutput.cpp.

References addSourceElement(), emit, errorOccured(), QUrl::isEmpty(), QUrl::isLocalFile(), QFile::open(), Q_FUNC_INFO, qCDebug, QStringLiteral, qWarning, QIODeviceBase::ReadOnly, QMediaPlayer::ResourceError, setSource(), stop(), QUrl::toLocalFile(), QUrl::toString(), and url.

Referenced by QWasmMediaPlayer::setMedia(), and setSource().

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◆ setSource() [2/2]

void QWasmVideoOutput::setSource ( QIODevice * stream )

Definition at line 308 of file qwasmvideooutput.cpp.

References qstdweb::Blob::copyFrom(), db, emit, errorOccured(), QString::fromStdString(), mime, QMimeDatabase::mimeTypeForData(), QStringLiteral, qWarning, QMediaPlayer::ResourceError, qstdweb::Blob::val(), qstdweb::window(), and window().

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◆ setSurface()

void QWasmVideoOutput::setSurface ( QVideoSink * surface )

Definition at line 195 of file qwasmvideooutput.cpp.

References m_wasmSink, Q_FUNC_INFO, and qCDebug.

Referenced by QWasmCamera::setActive(), and QWasmMediaPlayer::setVideoSink().

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◆ setVideoMode()

void QWasmVideoOutput::setVideoMode ( QWasmVideoOutput::WasmVideoMode mode )

Definition at line 75 of file qwasmvideooutput.cpp.

Referenced by QWasmCamera::setCamera().

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◆ setVideoSize()

void QWasmVideoOutput::setVideoSize ( const QSize & newSize )

Definition at line 66 of file qwasmvideooutput.cpp.

References QSize::height(), updateVideoElementGeometry(), and QSize::width().

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◆ setVolume()

void QWasmVideoOutput::setVolume ( qreal volume )

Definition at line 341 of file qwasmvideooutput.cpp.

References qBound().

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◆ sizeChange

void QWasmVideoOutput::sizeChange	(	qint32	width,
		qint32	height
	)

signal

Referenced by doElementCallbacks().

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◆ start()

void QWasmVideoOutput::start ( )

Definition at line 80 of file qwasmvideooutput.cpp.

References Camera, emit, errorOccured(), QString::isEmpty(), m_wasmSink, Q_FUNC_INFO, qCDebug, QStringLiteral, QMediaPlayer::ResourceError, updateVideoElementGeometry(), videoFrameTimerCallback(), and VideoOutput.

Referenced by QWasmMediaPlayer::play(), and QWasmCamera::setActive().

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◆ stateChanged

void QWasmVideoOutput::stateChanged ( QWasmMediaPlayer::QWasmMediaPlayerState newState )

signal

Referenced by doElementCallbacks().

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◆ statusChanged

void QWasmVideoOutput::statusChanged ( QMediaPlayer::MediaStatus status )

signal

Referenced by doElementCallbacks().

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◆ stop()

void QWasmVideoOutput::stop ( )

Definition at line 146 of file qwasmvideooutput.cpp.

References emit, errorOccured(), Q_FUNC_INFO, qCDebug, QStringLiteral, and QMediaPlayer::ResourceError.

Referenced by doElementCallbacks(), setSource(), and QWasmMediaPlayer::stop().

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◆ surfaceElement()

emscripten::val QWasmVideoOutput::surfaceElement ( )

Definition at line 190 of file qwasmvideooutput.cpp.

◆ updateVideoElementGeometry()

void QWasmVideoOutput::updateVideoElementGeometry ( const QRect & windowGeometry )

Definition at line 770 of file qwasmvideooutput.cpp.

References arg, QRect::height(), QRect::left(), Q_FUNC_INFO, qCDebug, QRect::size(), QRect::top(), QRect::topLeft(), and QRect::width().

Referenced by doElementCallbacks(), QWasmCamera::setCamera(), setVideoSize(), and start().

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◆ videoFrameCallback()

void QWasmVideoOutput::videoFrameCallback	(	emscripten::val	now,
		emscripten::val	metadata
	)

static

Definition at line 883 of file qwasmvideooutput.cpp.

References qstdweb::PromiseCallbacks::catchFunc, error, QVideoFrameFormat::Format_Invalid, frameSize(), QVideoFrameFormat::frameWidth(), QString::fromStdString(), m_videoSurfaceId, m_wasmSink, qstdweb::Promise::make(), now, QVideoFrameFormat::pixelFormat(), Q_FUNC_INFO, Q_UNUSED, qCDebug, qWarning, QVideoSink::setVideoFrame(), QVideoTextureHelper::TextureDescription::strideForWidth(), QVideoTextureHelper::textureDescription(), and qstdweb::PromiseCallbacks::thenFunc.

Referenced by EMSCRIPTEN_BINDINGS().

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◆ videoFrameTimerCallback()

void QWasmVideoOutput::videoFrameTimerCallback ( )

Definition at line 969 of file qwasmvideooutput.cpp.

References context, frame, m_videoSurfaceId, and Q_UNUSED.

Referenced by doElementCallbacks(), and start().

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Member Data Documentation

◆ m_wasmSink

QVideoSink* QWasmVideoOutput::m_wasmSink = nullptr

Definition at line 88 of file qwasmvideooutput_p.h.

Referenced by newFrame(), reset(), setSurface(), start(), and videoFrameCallback().

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

qtmultimedia/src/plugins/multimedia/wasm/common/qwasmvideooutput_p.h
qtmultimedia/src/plugins/multimedia/wasm/common/qwasmvideooutput.cpp

Public Types

Signals

Public Member Functions

Static Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ WasmVideoMode

Constructor & Destructor Documentation

◆ QWasmVideoOutput()

Member Function Documentation

◆ addCameraSourceElement()

◆ addSourceElement()

◆ bufferingChanged

◆ createOffscreenElement()

◆ createVideoElement()

◆ doElementCallbacks()

◆ durationChanged

◆ errorOccured

◆ getCurrentPosition()

◆ getDeviceCapabilities()

◆ getDuration()

◆ hasCapability()

◆ isCameraReady()

◆ isReady()

◆ isVideoSeekable()

◆ metaDataLoaded

◆ newFrame()

◆ pause()

◆ playbackRate()

◆ progressChanged

◆ readyChanged

◆ removeSourceElement()

◆ reset()

◆ seekTo()

◆ setDeviceSetting()

◆ setHasAudio()

◆ setMuted()

◆ setPlaybackRate()

◆ setSource() [1/2]

◆ setSource() [2/2]

◆ setSurface()

◆ setVideoMode()

◆ setVideoSize()

◆ setVolume()

◆ sizeChange

◆ start()

◆ stateChanged

◆ statusChanged

◆ stop()

◆ surfaceElement()

◆ updateVideoElementGeometry()

◆ videoFrameCallback()

◆ videoFrameTimerCallback()

Member Data Documentation

◆ m_wasmSink