The QVideoWidget class provides a widget which presents video produced by a media object. More...
| Header: | #include <QVideoWidget> |
| qmake: | QT += multimediawidgets |
| Inherits: | QWidget and QMediaBindableInterface |
| Inherited By: |
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| QVideoWidget(QWidget *parent = nullptr) | |
| virtual | ~QVideoWidget() |
| Qt::AspectRatioMode | aspectRatioMode() const |
| int | brightness() const |
| int | contrast() const |
| int | hue() const |
| bool | isFullScreen() const |
| int | saturation() const |
| virtual QMediaObject * | mediaObject() const override |
| virtual QSize | sizeHint() const override |
| void | setAspectRatioMode(Qt::AspectRatioMode mode) |
| void | setBrightness(int brightness) |
| void | setContrast(int contrast) |
| void | setFullScreen(bool fullScreen) |
| void | setHue(int hue) |
| void | setSaturation(int saturation) |
| void | brightnessChanged(int brightness) |
| void | contrastChanged(int contrast) |
| void | fullScreenChanged(bool fullScreen) |
| void | hueChanged(int hue) |
| void | saturationChanged(int saturation) |
| virtual bool | event(QEvent *event) override |
| virtual void | hideEvent(QHideEvent *event) override |
| virtual void | moveEvent(QMoveEvent *event) override |
| virtual void | paintEvent(QPaintEvent *event) override |
| virtual void | resizeEvent(QResizeEvent *event) override |
| virtual void | showEvent(QShowEvent *event) override |
The QVideoWidget class provides a widget which presents video produced by a media object.
Attaching a QVideoWidget to a QMediaObject allows it to display the video or image output of that media object. A QVideoWidget is attached to media object by passing a pointer to the QMediaObject in its constructor, and detached by destroying the QVideoWidget.
player = new QMediaPlayer; playlist = new QMediaPlaylist(player); playlist->addMedia(QUrl("http://example.com/myclip1.mp4")); playlist->addMedia(QUrl("http://example.com/myclip2.mp4")); videoWidget = new QVideoWidget; player->setVideoOutput(videoWidget); videoWidget->show(); playlist->setCurrentIndex(1); player->play();
Note: Only a single display output can be attached to a media object at one time.
See also QMediaObject, QMediaPlayer, and QGraphicsVideoItem.
how video is scaled with respect to its aspect ratio.
Access functions:
| Qt::AspectRatioMode | aspectRatioMode() const |
| void | setAspectRatioMode(Qt::AspectRatioMode mode) |
This property holds an adjustment to the brightness of displayed video.
Valid brightness values range between -100 and 100, the default is 0.
Access functions:
| int | brightness() const |
| void | setBrightness(int brightness) |
Notifier signal:
| void | brightnessChanged(int brightness) |
This property holds an adjustment to the contrast of displayed video.
Valid contrast values range between -100 and 100, the default is 0.
Access functions:
| int | contrast() const |
| void | setContrast(int contrast) |
Notifier signal:
| void | contrastChanged(int contrast) |
This property holds whether video display is confined to a window or is fullScreen.
Access functions:
| bool | isFullScreen() const |
| void | setFullScreen(bool fullScreen) |
Notifier signal:
| void | fullScreenChanged(bool fullScreen) |
This property holds an adjustment to the hue of displayed video.
Valid hue values range between -100 and 100, the default is 0.
Access functions:
| int | hue() const |
| void | setHue(int hue) |
Notifier signal:
| void | hueChanged(int hue) |
This property holds the media object which provides the video displayed by a widget.
Access functions:
| virtual QMediaObject * | mediaObject() const override |
This property holds an adjustment to the saturation of displayed video.
Valid saturation values range between -100 and 100, the default is 0.
Access functions:
| int | saturation() const |
| void | setSaturation(int saturation) |
Notifier signal:
| void | saturationChanged(int saturation) |
Constructs a new video widget.
The parent is passed to QWidget.
[virtual] QVideoWidget::~QVideoWidget()Destroys a video widget.
[signal] void QVideoWidget::brightnessChanged(int brightness)Signals that a video widgets's brightness adjustment has changed.
Note: Notifier signal for property brightness.
See also brightness().
[signal] void QVideoWidget::contrastChanged(int
contrast)Signals that a video widgets's contrast adjustment has changed.
Note: Notifier signal for property contrast.
See also contrast().
[override virtual protected] bool QVideoWidget::event(QEvent *event)Reimplemented from QWidget::event().
Current event event. Returns the value of the baseclass QWidget::event(QEvent *event) function.
[signal] void QVideoWidget::fullScreenChanged(bool fullScreen)Signals that the fullScreen mode of a video widget has changed.
Note: Notifier signal for property fullScreen.
See also isFullScreen().
[override virtual protected] void QVideoWidget::hideEvent(QHideEvent *event)Reimplemented from QWidget::hideEvent().
Handles the hide event.
[signal] void QVideoWidget::hueChanged(int hue)Signals that a video widgets's hue has changed.
Note: Notifier signal for property hue.
See also hue().
[override virtual protected] void QVideoWidget::moveEvent(QMoveEvent *event)Reimplemented from QWidget::moveEvent().
Handles the move event.
[override virtual protected] void QVideoWidget::paintEvent(QPaintEvent *event)Reimplemented from QWidget::paintEvent().
Handles the paint event.
[override virtual protected] void QVideoWidget::resizeEvent(QResizeEvent *event)Reimplemented from QWidget::resizeEvent().
Handles the resize event.
[signal] void QVideoWidget::saturationChanged(int saturation)Signals that a video widgets's saturation has changed.
Note: Notifier signal for property saturation.
See also saturation().
[override virtual protected] void QVideoWidget::showEvent(QShowEvent *event)Reimplemented from QWidget::showEvent().
Handles the show event.
[override virtual] QSize QVideoWidget::sizeHint() constReimplemented from QWidget::sizeHint().
Returns the size hint for the current back end, if there is one, or else the size hint from QWidget.
