#include <qwasmvideooutput_p.h>

Inheritance diagram for QWasmVideoOutput:

Collaboration diagram for QWasmVideoOutput:

Public Types
enum	WasmVideoMode { VideoDisplay , Camera , SurfaceCapture }
enum	WasmCameraMode { Front , Back , Undefined = -1 }
using	MediaStatus = QMediaPlayer::MediaStatus

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 ()
void	seekableChanged (bool seekable)
void	orientationChanged (int rotationIndex)
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)
	~QWasmVideoOutput ()
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	updateVideoElementSource (const QString &src)
void	addCameraSourceElement (const std::string &id)
void	removeSourceElement ()
void	setVideoMode (QWasmVideoOutput::WasmVideoMode mode)
void	setVideoConstraints (QSize resolution, float minFrameRate, float maxFrameRate)
void	setHasAudio (bool needsAudio)
bool	hasCapability (const QString &cap)
emscripten::val	getDeviceCapabilities ()
bool	setDeviceSetting (const std::string &key, emscripten::val value)
bool	isCameraReady ()
void	videoFrameCallback (void *context)
void	videoFrameTimerCallback ()
void	webglVideoFrameCallback (void *context)
void	getWebGLContext ()
emscripten::val	currentVideoElement ()
void	removeCurrentVideoElement ()
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	isQmlExposed () const noexcept
	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).
QThread *	thread () 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>
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>
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 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 QVideoFrameFormat::PixelFormat	fromJsPixelFormat (std::string_view videoFormat)
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 &)
	Disconnects connection and resets it to \l{QMetaObject::Connection::operator bool()}{invalid}.
static bool	disconnect (QMetaObject::Connection &)
static bool	disconnect (QMetaObject::Connection &&conn)
	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
bool	m_hasVideoFrame = false
bool	m_hasWebGLContext = false
bool	m_webGLContextChecked = false
QVideoSink *	m_wasmSink = nullptr
std::string	m_videoSurfaceId

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 45 of file qwasmvideooutput_p.h.

Member Typedef Documentation

◆ MediaStatus

using QWasmVideoOutput::MediaStatus = QMediaPlayer::MediaStatus

Definition at line 49 of file qwasmvideooutput_p.h.

Member Enumeration Documentation

◆ WasmCameraMode

enum QWasmVideoOutput::WasmCameraMode

Enumerator
Front
Back
Undefined

Definition at line 51 of file qwasmvideooutput_p.h.

◆ WasmVideoMode

enum QWasmVideoOutput::WasmVideoMode

Enumerator
VideoDisplay
Camera
SurfaceCapture

Definition at line 50 of file qwasmvideooutput_p.h.

Constructor & Destructor Documentation

◆ QWasmVideoOutput()

QWasmVideoOutput::QWasmVideoOutput ( QObject * parent = nullptr )

explicit

Definition at line 72 of file qwasmvideooutput.cpp.

◆ ~QWasmVideoOutput()

QWasmVideoOutput::~QWasmVideoOutput ( )

Definition at line 106 of file qwasmvideooutput.cpp.

Member Function Documentation

◆ addCameraSourceElement()

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

Definition at line 350 of file qwasmvideooutput.cpp.

References start().

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◆ bufferingChanged

void QWasmVideoOutput::bufferingChanged ( qint32 percent )

signal

◆ createOffscreenElement()

void QWasmVideoOutput::createOffscreenElement ( const QSize & offscreenSize )

Definition at line 527 of file qwasmvideooutput.cpp.

References m_hasVideoFrame.

◆ createVideoElement()

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

Definition at line 477 of file qwasmvideooutput.cpp.

◆ currentVideoElement()

emscripten::val QWasmVideoOutput::currentVideoElement ( )

inline

Definition at line 111 of file qwasmvideooutput_p.h.

◆ doElementCallbacks()

void QWasmVideoOutput::doElementCallbacks ( )

Definition at line 571 of file qwasmvideooutput.cpp.

References isVideoSeekable(), QWasmMediaPlayer::Paused, QWasmMediaPlayer::Prepared, QWasmMediaPlayer::Preparing, QWasmMediaPlayer::Started, QWasmMediaPlayer::Stopped, and videoFrameTimerCallback().

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◆ durationChanged

void QWasmVideoOutput::durationChanged ( qint64 duration )

signal

◆ errorOccured

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

signal

◆ fromJsPixelFormat()

QVideoFrameFormat::PixelFormat QWasmVideoOutput::fromJsPixelFormat ( std::string_view videoFormat )

static

Definition at line 1236 of file qwasmvideooutput.cpp.

◆ getCurrentPosition()

qint64 QWasmVideoOutput::getCurrentPosition ( )

Definition at line 428 of file qwasmvideooutput.cpp.

◆ getDeviceCapabilities()

emscripten::val QWasmVideoOutput::getDeviceCapabilities ( )

Definition at line 1260 of file qwasmvideooutput.cpp.

◆ getDuration()

qint64 QWasmVideoOutput::getDuration ( )

Definition at line 866 of file qwasmvideooutput.cpp.

◆ getWebGLContext()

void QWasmVideoOutput::getWebGLContext ( )

Definition at line 1071 of file qwasmvideooutput.cpp.

References m_hasWebGLContext.

Referenced by videoFrameTimerCallback().

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◆ hasCapability()

bool QWasmVideoOutput::hasCapability ( const QString & cap )

◆ isCameraReady()

bool QWasmVideoOutput::isCameraReady ( )

inline

Definition at line 97 of file qwasmvideooutput_p.h.

◆ isReady()

bool QWasmVideoOutput::isReady ( ) const

Definition at line 307 of file qwasmvideooutput.cpp.

◆ isVideoSeekable()

bool QWasmVideoOutput::isVideoSeekable ( )

Definition at line 457 of file qwasmvideooutput.cpp.

Referenced by doElementCallbacks(), and seekTo().

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◆ metaDataLoaded

void QWasmVideoOutput::metaDataLoaded ( )

signal

◆ newFrame()

void QWasmVideoOutput::newFrame ( const QVideoFrame & newFrame )

Definition at line 876 of file qwasmvideooutput.cpp.

◆ orientationChanged

void QWasmVideoOutput::orientationChanged ( int rotationIndex )

signal

Referenced by videoFrameTimerCallback().

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◆ pause()

void QWasmVideoOutput::pause ( )

Definition at line 268 of file qwasmvideooutput.cpp.

◆ playbackRate()

qreal QWasmVideoOutput::playbackRate ( )

Definition at line 886 of file qwasmvideooutput.cpp.

◆ progressChanged

void QWasmVideoOutput::progressChanged ( qint32 position )

signal

◆ readyChanged

void QWasmVideoOutput::readyChanged ( bool )

signal

◆ removeCurrentVideoElement()

void QWasmVideoOutput::removeCurrentVideoElement ( )

Definition at line 565 of file qwasmvideooutput.cpp.

◆ removeSourceElement()

void QWasmVideoOutput::removeSourceElement ( )

◆ reset()

void QWasmVideoOutput::reset ( )

Definition at line 282 of file qwasmvideooutput.cpp.

◆ seekableChanged

void QWasmVideoOutput::seekableChanged ( bool seekable )

signal

◆ seekTo()

void QWasmVideoOutput::seekTo ( qint64 position )

Definition at line 435 of file qwasmvideooutput.cpp.

References isVideoSeekable().

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◆ setDeviceSetting()

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

Definition at line 1289 of file qwasmvideooutput.cpp.

◆ setHasAudio()

void QWasmVideoOutput::setHasAudio ( bool needsAudio )

inline

Definition at line 92 of file qwasmvideooutput_p.h.

◆ setMuted()

void QWasmVideoOutput::setMuted ( bool muted )

Definition at line 418 of file qwasmvideooutput.cpp.

◆ setPlaybackRate()

void QWasmVideoOutput::setPlaybackRate ( qreal rate )

Definition at line 881 of file qwasmvideooutput.cpp.

◆ setSource() [1/2]

void QWasmVideoOutput::setSource ( const QUrl & url )

Definition at line 317 of file qwasmvideooutput.cpp.

References setSource(), and stop().

Referenced by setSource().

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◆ setSource() [2/2]

void QWasmVideoOutput::setSource ( QIODevice * stream )

Definition at line 381 of file qwasmvideooutput.cpp.

◆ setSurface()

void QWasmVideoOutput::setSurface ( QVideoSink * surface )

Definition at line 298 of file qwasmvideooutput.cpp.

◆ setVideoConstraints()

void QWasmVideoOutput::setVideoConstraints	(	QSize	resolution,
		float	minFrameRate,
		float	maxFrameRate )

Definition at line 374 of file qwasmvideooutput.cpp.

◆ setVideoMode()

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

Definition at line 143 of file qwasmvideooutput.cpp.

◆ setVideoSize()

void QWasmVideoOutput::setVideoSize ( const QSize & newSize )

Definition at line 122 of file qwasmvideooutput.cpp.

◆ setVolume()

void QWasmVideoOutput::setVolume ( qreal volume )

Definition at line 412 of file qwasmvideooutput.cpp.

◆ sizeChange

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

signal

◆ start()

void QWasmVideoOutput::start ( )

Definition at line 148 of file qwasmvideooutput.cpp.

References Camera, SurfaceCapture, and VideoDisplay.

Referenced by addCameraSourceElement(), QWasmScreenCapture::setVideoStream(), and QWasmWindowCapture::setVideoStream().

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◆ stateChanged

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

signal

◆ statusChanged

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

signal

◆ stop()

void QWasmVideoOutput::stop ( )

Definition at line 235 of file qwasmvideooutput.cpp.

References SurfaceCapture.

Referenced by setSource().

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◆ surfaceElement()

emscripten::val QWasmVideoOutput::surfaceElement ( )

Definition at line 293 of file qwasmvideooutput.cpp.

◆ updateVideoElementGeometry()

void QWasmVideoOutput::updateVideoElementGeometry ( const QRect & windowGeometry )

Definition at line 848 of file qwasmvideooutput.cpp.

References m_hasVideoFrame.

◆ updateVideoElementSource()

void QWasmVideoOutput::updateVideoElementSource ( const QString & src )

Definition at line 344 of file qwasmvideooutput.cpp.

◆ videoFrameCallback()

void QWasmVideoOutput::videoFrameCallback ( void * context )

Definition at line 964 of file qwasmvideooutput.cpp.

◆ videoFrameTimerCallback()

void QWasmVideoOutput::videoFrameTimerCallback ( )

Definition at line 1154 of file qwasmvideooutput.cpp.

References Back, Front, getWebGLContext(), m_hasVideoFrame, m_hasWebGLContext, m_webGLContextChecked, and orientationChanged().

Referenced by doElementCallbacks().

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◆ webglVideoFrameCallback()

void QWasmVideoOutput::webglVideoFrameCallback ( void * context )

Definition at line 1111 of file qwasmvideooutput.cpp.

Member Data Documentation

◆ m_hasVideoFrame

bool QWasmVideoOutput::m_hasVideoFrame = false

Definition at line 98 of file qwasmvideooutput_p.h.

Referenced by createOffscreenElement(), updateVideoElementGeometry(), and videoFrameTimerCallback().

◆ m_hasWebGLContext

bool QWasmVideoOutput::m_hasWebGLContext = false

Definition at line 105 of file qwasmvideooutput_p.h.

Referenced by getWebGLContext(), and videoFrameTimerCallback().

◆ m_videoSurfaceId

std::string QWasmVideoOutput::m_videoSurfaceId

Definition at line 115 of file qwasmvideooutput_p.h.

◆ m_wasmSink

QVideoSink* QWasmVideoOutput::m_wasmSink = nullptr

Definition at line 109 of file qwasmvideooutput_p.h.

◆ m_webGLContextChecked

bool QWasmVideoOutput::m_webGLContextChecked = false

Definition at line 106 of file qwasmvideooutput_p.h.

Referenced by videoFrameTimerCallback().

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

qtmultimedia/src/plugins/multimedia/wasm/common/qwasmvideooutput_p.h (64196faf33810737fd687fa2c7e8fa93db8078d4)
qtmultimedia/src/plugins/multimedia/wasm/common/qwasmvideooutput.cpp (ba5872fe7c27e2af503adfcad2c894f3821362ca)

Public Types

Signals

Public Member Functions

Static Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ MediaStatus

Member Enumeration Documentation

◆ WasmCameraMode

◆ WasmVideoMode

Constructor & Destructor Documentation

◆ QWasmVideoOutput()

◆ ~QWasmVideoOutput()

Member Function Documentation

◆ addCameraSourceElement()

◆ bufferingChanged

◆ createOffscreenElement()

◆ createVideoElement()

◆ currentVideoElement()

◆ doElementCallbacks()

◆ durationChanged

◆ errorOccured

◆ fromJsPixelFormat()

◆ getCurrentPosition()

◆ getDeviceCapabilities()

◆ getDuration()

◆ getWebGLContext()

◆ hasCapability()

◆ isCameraReady()

◆ isReady()

◆ isVideoSeekable()

◆ metaDataLoaded

◆ newFrame()

◆ orientationChanged

◆ pause()

◆ playbackRate()

◆ progressChanged

◆ readyChanged

◆ removeCurrentVideoElement()

◆ removeSourceElement()

◆ reset()

◆ seekableChanged

◆ seekTo()

◆ setDeviceSetting()

◆ setHasAudio()

◆ setMuted()

◆ setPlaybackRate()

◆ setSource() [1/2]

◆ setSource() [2/2]

◆ setSurface()

◆ setVideoConstraints()

◆ setVideoMode()

◆ setVideoSize()

◆ setVolume()

◆ sizeChange

◆ start()

◆ stateChanged

◆ statusChanged

◆ stop()

◆ surfaceElement()

◆ updateVideoElementGeometry()

◆ updateVideoElementSource()

◆ videoFrameCallback()

◆ videoFrameTimerCallback()

◆ webglVideoFrameCallback()

Member Data Documentation

◆ m_hasVideoFrame

◆ m_hasWebGLContext

◆ m_videoSurfaceId

◆ m_wasmSink

◆ m_webGLContextChecked