The QVideoWindowControl class provides a media control for rendering video to a window. 更多...
| 头： | #include <QVideoWindowControl> |
| qmake: | QT += multimedia |
| 继承： | QMediaControl |
| virtual | ~QVideoWindowControl () |
| virtual Qt::AspectRatioMode | aspectRatioMode () const = 0 |
| virtual int | brightness () const = 0 |
| virtual int | contrast () const = 0 |
| virtual QRect | displayRect () const = 0 |
| virtual int | hue () const = 0 |
| virtual bool | isFullScreen () const = 0 |
| virtual QSize | nativeSize () const = 0 |
| virtual void | repaint () = 0 |
| virtual int | saturation () const = 0 |
| virtual void | setAspectRatioMode (Qt::AspectRatioMode mode ) = 0 |
| virtual void | setBrightness (int brightness ) = 0 |
| virtual void | setContrast (int contrast ) = 0 |
| virtual void | setDisplayRect (const QRect & rect ) = 0 |
| virtual void | setFullScreen (bool fullScreen ) = 0 |
| virtual void | setHue (int hue ) = 0 |
| virtual void | setSaturation (int saturation ) = 0 |
| virtual void | setWinId (WId id ) = 0 |
| virtual WId | winId () const = 0 |
| void | brightnessChanged (int brightness ) |
| void | contrastChanged (int contrast ) |
| void | fullScreenChanged (bool fullScreen ) |
| void | hueChanged (int hue ) |
| void | nativeSizeChanged () |
| void | saturationChanged (int saturation ) |
| const QMetaObject | staticMetaObject |
| QVideoWindowControl (QObject * parent = nullptr) |
| QVideoWindowControl_iid |
The QVideoWindowControl class provides a media control for rendering video to a window.
The winId () property QVideoWindowControl allows a platform specific window ID to be set as the video render target of a QMediaService 。 displayRect () property is used to set the region of the window the video should be rendered to, and the aspectRatioMode () property indicates how the video should be scaled to fit the displayRect ().
QVideoWindowControl *windowControl = mediaService->requestControl<QVideoWindowControl *>(); windowControl->setWinId(widget->winId()); windowControl->setDisplayRect(widget->rect()); windowControl->setAspectRatioMode(Qt::KeepAspectRatio);
QVideoWindowControl is one of a number of possible video output controls.
接口名称对于
QVideoWindowControl
is
org.qt-project.qt.videowindowcontrol/5.0
作为定义在
QVideoWindowControl_iid
.
另请参阅 QMediaService::requestControl () 和 QVideoWidget .
[protected]
QVideoWindowControl::
QVideoWindowControl
(
QObject
*
parent
= nullptr)
Constructs a new video window control with the given parent .
[虚拟]
QVideoWindowControl::
~QVideoWindowControl
()
Destroys a video window control.
[pure virtual]
Qt::AspectRatioMode
QVideoWindowControl::
aspectRatioMode
() const
Returns how video is scaled to fit the display region with respect to its aspect ratio.
另请参阅 setAspectRatioMode ().
[pure virtual]
int
QVideoWindowControl::
brightness
() const
Returns the brightness adjustment applied to a video overlay.
有效亮度值的范围在 -100 到 100 之间，默认为 0。
另请参阅 setBrightness ().
[signal]
void
QVideoWindowControl::
brightnessChanged
(
int
brightness
)
Signals that a video overlay's brightness 调节已改变。
[pure virtual]
int
QVideoWindowControl::
contrast
() const
Returns the contrast adjustment applied to a video overlay.
有效对比度值的范围在 -100 到 100 之间，默认为 0。
另请参阅 setContrast ().
[signal]
void
QVideoWindowControl::
contrastChanged
(
int
contrast
)
Signals that a video overlay's contrast 调节已改变。
[pure virtual]
QRect
QVideoWindowControl::
displayRect
() const
Returns the sub-rect of a window where video is displayed.
另请参阅 setDisplayRect ().
[signal]
void
QVideoWindowControl::
fullScreenChanged
(
bool
fullScreen
)
信号 fullScreen state of a video overlay has changed.
[pure virtual]
int
QVideoWindowControl::
hue
() const
Returns the hue adjustment applied to a video overlay.
Value hue values range between -100 and 100, the default is 0.
另请参阅 setHue ().
[signal]
void
QVideoWindowControl::
hueChanged
(
int
hue
)
Signals that a video overlay's hue 调节已改变。
[pure virtual]
bool
QVideoWindowControl::
isFullScreen
() const
Identifies if a video overlay is a fullScreen overlay.
Returns true if the video overlay is fullScreen, and false otherwise.
[pure virtual]
QSize
QVideoWindowControl::
nativeSize
() const
Returns a suggested size for the video display based on the resolution and aspect ratio of the video.
[signal]
void
QVideoWindowControl::
nativeSizeChanged
()
Signals that the native dimensions of the video have changed.
[pure virtual]
void
QVideoWindowControl::
repaint
()
Repaints the last frame.
[pure virtual]
int
QVideoWindowControl::
saturation
() const
Returns the saturation adjustment applied to a video overlay.
Value saturation values range between -100 and 100, the default is 0.
另请参阅 setSaturation ().
[signal]
void
QVideoWindowControl::
saturationChanged
(
int
saturation
)
Signals that a video overlay's saturation 调节已改变。
[pure virtual]
void
QVideoWindowControl::
setAspectRatioMode
(
Qt::AspectRatioMode
mode
)
Sets the aspect ratio mode which determines how video is scaled to the fit the display region with respect to its aspect ratio.
另请参阅 aspectRatioMode ().
[pure virtual]
void
QVideoWindowControl::
setBrightness
(
int
brightness
)
设置 brightness adjustment for a video overlay.
有效亮度值的范围在 -100 到 100 之间，默认为 0。
另请参阅 brightness ().
[pure virtual]
void
QVideoWindowControl::
setContrast
(
int
contrast
)
设置 contrast adjustment for a video overlay.
有效对比度值的范围在 -100 到 100 之间，默认为 0。
另请参阅 contrast ().
[pure virtual]
void
QVideoWindowControl::
setDisplayRect
(const
QRect
&
rect
)
Sets the sub- rect of a window where video is displayed.
另请参阅 displayRect ().
[pure virtual]
void
QVideoWindowControl::
setFullScreen
(
bool
fullScreen
)
Sets whether a video overlay is a fullScreen overlay.
另请参阅 isFullScreen ().
[pure virtual]
void
QVideoWindowControl::
setHue
(
int
hue
)
设置 hue adjustment for a video overlay.
有效色相值的范围在 -100 到 100 之间，默认为 0。
另请参阅 hue ().
[pure virtual]
void
QVideoWindowControl::
setSaturation
(
int
saturation
)
设置 saturation adjustment for a video overlay.
有效饱和度值的范围在 -100 至 100 之间，默认为 0。
另请参阅 saturation ().
[pure virtual]
void
QVideoWindowControl::
setWinId
(
WId
id
)
设置 id of the window a video overlay end point renders to.
另请参阅 winId ().
[pure virtual]
WId
QVideoWindowControl::
winId
() const
Returns the ID of the window a video overlay end point renders to.
另请参阅 setWinId ().
org.qt-project.qt.videowindowcontrol/5.0
定义接口名为 QVideoWindowControl 类。