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QWasmVideoOutput Class Reference

#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 createVideoElement (const std::string &id)
void doElementCallbacks ()
void updateVideoElementGeometry (const QRect &windowGeometry)
void updateVideoElementSource (const QString &src)
void addCameraSourceElement (const std::string &id)
void setVideoMode (QWasmVideoOutput::WasmVideoMode mode)
void setVideoConstraints (QSize resolution, float minFrameRate, float maxFrameRate)
void setHasAudio (bool needsAudio)
emscripten::val getDeviceCapabilities ()
bool setDeviceSetting (const std::string &key, emscripten::val value)
bool isCameraReady ()
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.

Public Attributes

QVideoSink * m_wasmSink = nullptr
std::string m_videoSurfaceId

Friends

class QWasmVideoFrameGrabber

Additional Inherited Members

Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
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)
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
 Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.
 \macro Q_CLASSINFO(Name, Value)

Detailed Description

Definition at line 44 of file qwasmvideooutput_p.h.

Member Typedef Documentation

◆ MediaStatus

using QWasmVideoOutput::MediaStatus = QMediaPlayer::MediaStatus

Definition at line 48 of file qwasmvideooutput_p.h.

Member Enumeration Documentation

◆ WasmCameraMode

enum QWasmVideoOutput::WasmCameraMode
Enumerator
Front 
Back 
Undefined 

Definition at line 50 of file qwasmvideooutput_p.h.

◆ WasmVideoMode

enum QWasmVideoOutput::WasmVideoMode
Enumerator
VideoDisplay 
Camera 
SurfaceCapture 

Definition at line 49 of file qwasmvideooutput_p.h.

Constructor & Destructor Documentation

◆ QWasmVideoOutput()

QWasmVideoOutput::QWasmVideoOutput ( QObject * parent = nullptr)
explicit

Definition at line 49 of file qwasmvideooutput.cpp.

◆ ~QWasmVideoOutput()

QWasmVideoOutput::~QWasmVideoOutput ( )

Definition at line 60 of file qwasmvideooutput.cpp.

Member Function Documentation

◆ addCameraSourceElement()

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

Definition at line 370 of file qwasmvideooutput.cpp.

References start().

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◆ bufferingChanged

void QWasmVideoOutput::bufferingChanged ( qint32 percent)
signal

◆ createVideoElement()

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

Definition at line 497 of file qwasmvideooutput.cpp.

References m_videoSurfaceId.

◆ currentVideoElement()

emscripten::val QWasmVideoOutput::currentVideoElement ( )
inline

Definition at line 97 of file qwasmvideooutput_p.h.

◆ doElementCallbacks()

QT_BEGIN_NAMESPACE void QWasmVideoOutput::doElementCallbacks ( )

Definition at line 18 of file qwasmvideooutputevents.cpp.

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

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◆ durationChanged

void QWasmVideoOutput::durationChanged ( qint64 duration)
signal

◆ errorOccured

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

◆ getCurrentPosition()

qint64 QWasmVideoOutput::getCurrentPosition ( )

Definition at line 448 of file qwasmvideooutput.cpp.

◆ getDeviceCapabilities()

emscripten::val QWasmVideoOutput::getDeviceCapabilities ( )

Definition at line 582 of file qwasmvideooutput.cpp.

◆ getDuration()

qint64 QWasmVideoOutput::getDuration ( )

Definition at line 562 of file qwasmvideooutput.cpp.

◆ isCameraReady()

bool QWasmVideoOutput::isCameraReady ( )
inline

Definition at line 92 of file qwasmvideooutput_p.h.

◆ isReady()

bool QWasmVideoOutput::isReady ( ) const

Definition at line 327 of file qwasmvideooutput.cpp.

Referenced by QWasmVideoFrameGrabber::startFrameLoop().

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◆ isVideoSeekable()

bool QWasmVideoOutput::isVideoSeekable ( )

Definition at line 477 of file qwasmvideooutput.cpp.

Referenced by doElementCallbacks(), and seekTo().

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◆ metaDataLoaded

void QWasmVideoOutput::metaDataLoaded ( )
signal

◆ orientationChanged

void QWasmVideoOutput::orientationChanged ( int rotationIndex)
signal

◆ pause()

void QWasmVideoOutput::pause ( )

Definition at line 288 of file qwasmvideooutput.cpp.

◆ playbackRate()

qreal QWasmVideoOutput::playbackRate ( )

Definition at line 577 of file qwasmvideooutput.cpp.

◆ progressChanged

void QWasmVideoOutput::progressChanged ( qint32 position)
signal

◆ readyChanged

void QWasmVideoOutput::readyChanged ( bool )
signal

◆ removeCurrentVideoElement()

void QWasmVideoOutput::removeCurrentVideoElement ( )

Definition at line 544 of file qwasmvideooutput.cpp.

◆ reset()

void QWasmVideoOutput::reset ( )

Definition at line 302 of file qwasmvideooutput.cpp.

◆ seekableChanged

void QWasmVideoOutput::seekableChanged ( bool seekable)
signal

◆ seekTo()

void QWasmVideoOutput::seekTo ( qint64 position)

Definition at line 455 of file qwasmvideooutput.cpp.

References isVideoSeekable().

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◆ setDeviceSetting()

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

Definition at line 611 of file qwasmvideooutput.cpp.

◆ setHasAudio()

void QWasmVideoOutput::setHasAudio ( bool needsAudio)
inline

Definition at line 88 of file qwasmvideooutput_p.h.

◆ setMuted()

void QWasmVideoOutput::setMuted ( bool muted)

Definition at line 438 of file qwasmvideooutput.cpp.

◆ setPlaybackRate()

void QWasmVideoOutput::setPlaybackRate ( qreal rate)

Definition at line 572 of file qwasmvideooutput.cpp.

◆ setSource() [1/2]

void QWasmVideoOutput::setSource ( const QUrl & url)

Definition at line 337 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 401 of file qwasmvideooutput.cpp.

◆ setSurface()

void QWasmVideoOutput::setSurface ( QVideoSink * surface)

Definition at line 318 of file qwasmvideooutput.cpp.

◆ setVideoConstraints()

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

Definition at line 394 of file qwasmvideooutput.cpp.

◆ setVideoMode()

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

Definition at line 80 of file qwasmvideooutput.cpp.

◆ setVideoSize()

void QWasmVideoOutput::setVideoSize ( const QSize & newSize)

Definition at line 71 of file qwasmvideooutput.cpp.

◆ setVolume()

void QWasmVideoOutput::setVolume ( qreal volume)

Definition at line 432 of file qwasmvideooutput.cpp.

◆ sizeChange

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

◆ start()

void QWasmVideoOutput::start ( )

Definition at line 152 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 252 of file qwasmvideooutput.cpp.

References SurfaceCapture.

Referenced by setSource().

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◆ surfaceElement()

emscripten::val QWasmVideoOutput::surfaceElement ( )

Definition at line 313 of file qwasmvideooutput.cpp.

◆ updateVideoElementGeometry()

void QWasmVideoOutput::updateVideoElementGeometry ( const QRect & windowGeometry)

Definition at line 550 of file qwasmvideooutput.cpp.

◆ updateVideoElementSource()

void QWasmVideoOutput::updateVideoElementSource ( const QString & src)

Definition at line 364 of file qwasmvideooutput.cpp.

◆ QWasmVideoFrameGrabber

friend class QWasmVideoFrameGrabber
friend

Definition at line 182 of file qwasmvideooutput_p.h.

Member Data Documentation

◆ m_videoSurfaceId

std::string QWasmVideoOutput::m_videoSurfaceId

Definition at line 101 of file qwasmvideooutput_p.h.

Referenced by createVideoElement().

◆ m_wasmSink

QVideoSink* QWasmVideoOutput::m_wasmSink = nullptr

Definition at line 95 of file qwasmvideooutput_p.h.

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