QCameraExposure ¶

概要 ¶

详细描述 ¶

PySide2.QtMultimedia.QCameraExposure. FlashMode ¶

常量	描述
QCameraExposure.FlashAuto	自动闪光。
QCameraExposure.FlashOff	Flash is Off.
QCameraExposure.FlashOn	Flash is On.
QCameraExposure.FlashRedEyeReduction	Red eye reduction flash.
QCameraExposure.FlashFill	Use flash to fillin shadows.
QCameraExposure.FlashTorch	Constant light source. If supported, torch can be enabled without loading the camera.
QCameraExposure.FlashVideoLight	Constant light source, useful for video capture. The light is turned on only while camera is active.
QCameraExposure.FlashSlowSyncFrontCurtain	Use the flash in conjunction with a slow shutter speed. This mode allows better exposure of distant objects and/or motion blur effect.
QCameraExposure.FlashSlowSyncRearCurtain	The similar mode to but flash is fired at the end of exposure.
QCameraExposure.FlashManual	Flash power is manualy set.

PySide2.QtMultimedia.QCameraExposure. ExposureMode ¶

常量	描述
QCameraExposure.ExposureAuto	自动模式。
QCameraExposure.ExposureManual	手动模式。
QCameraExposure.ExposurePortrait	肖象曝光模式。
QCameraExposure.ExposureNight	夜间模式。
QCameraExposure.ExposureBacklight	背光曝光模式。
QCameraExposure.ExposureSpotlight	聚光灯曝光模式。
QCameraExposure.ExposureSports	亮点曝光模式。
QCameraExposure.ExposureSnow	Snow exposure mode.
QCameraExposure.ExposureBeach	Beach exposure mode.
QCameraExposure.ExposureLargeAperture	Use larger aperture with small depth of field.
QCameraExposure.ExposureSmallAperture	Use smaller aperture.
QCameraExposure.ExposureAction	Action mode. Since 5.5
QCameraExposure.ExposureLandscape	Landscape mode. Since 5.5
QCameraExposure.ExposureNightPortrait	Night portrait mode. Since 5.5
QCameraExposure.ExposureTheatre	Theatre mode. Since 5.5
QCameraExposure.ExposureSunset	Sunset mode. Since 5.5
QCameraExposure.ExposureSteadyPhoto	Steady photo mode. Since 5.5
QCameraExposure.ExposureFireworks	Fireworks mode. Since 5.5
QCameraExposure.ExposureParty	Party mode. Since 5.5
QCameraExposure.ExposureCandlelight	Candlelight mode. Since 5.5
QCameraExposure.ExposureBarcode	Barcode mode. Since 5.5
QCameraExposure.ExposureModeVendor	The base value for device specific exposure modes.

PySide2.QtMultimedia.QCameraExposure. MeteringMode ¶

常量	描述
QCameraExposure.MeteringMatrix	Matrix metering mode.
QCameraExposure.MeteringAverage	Center weighted average metering mode.
QCameraExposure.MeteringSpot	Spot metering mode.

PySide2.QtMultimedia.QCameraExposure. aperture ( ) ¶

返回类型

qreal

PySide2.QtMultimedia.QCameraExposure. apertureChanged ( arg__1 ) ¶

参数

arg__1 – qreal

PySide2.QtMultimedia.QCameraExposure. apertureRangeChanged ( ) ¶

PySide2.QtMultimedia.QCameraExposure. exposureCompensation ( ) ¶

返回类型

qreal

另请参阅

setExposureCompensation()

PySide2.QtMultimedia.QCameraExposure. exposureCompensationChanged ( arg__1 ) ¶

参数

arg__1 – qreal

PySide2.QtMultimedia.QCameraExposure. exposureMode ( ) ¶

返回类型

ExposureMode

另请参阅

setExposureMode()

PySide2.QtMultimedia.QCameraExposure. flashMode ( ) ¶

返回类型

FlashModes

另请参阅

setFlashMode()

PySide2.QtMultimedia.QCameraExposure. flashReady ( arg__1 ) ¶

参数

arg__1 – bool

PySide2.QtMultimedia.QCameraExposure. isAvailable ( ) ¶

返回类型

bool

Returns true if exposure settings are supported by this camera.

PySide2.QtMultimedia.QCameraExposure. isExposureModeSupported ( mode ) ¶

参数

mode – ExposureMode

返回类型

bool

Returns true if the exposure mode is supported.

PySide2.QtMultimedia.QCameraExposure. isFlashModeSupported ( mode ) ¶

参数

mode – FlashModes

返回类型

bool

Returns true if the flash mode is supported.

PySide2.QtMultimedia.QCameraExposure. isFlashReady ( ) ¶

返回类型

bool

Returns true if flash is charged.

PySide2.QtMultimedia.QCameraExposure. isMeteringModeSupported ( mode ) ¶

参数

mode – MeteringMode

返回类型

bool

Returns true if the metering mode is supported.

PySide2.QtMultimedia.QCameraExposure. isoSensitivity ( ) ¶

返回类型

int

PySide2.QtMultimedia.QCameraExposure. isoSensitivityChanged ( arg__1 ) ¶

参数

arg__1 – int

PySide2.QtMultimedia.QCameraExposure. meteringMode ( ) ¶

返回类型

MeteringMode

另请参阅

setMeteringMode()

PySide2.QtMultimedia.QCameraExposure. requestedAperture ( ) ¶

返回类型

qreal

Returns the requested manual aperture or -1.0 if automatic aperture is turned on.

PySide2.QtMultimedia.QCameraExposure. requestedIsoSensitivity ( ) ¶

返回类型

int

Returns the requested ISO sensitivity or -1 if automatic ISO is turned on.

PySide2.QtMultimedia.QCameraExposure. requestedShutterSpeed ( ) ¶

返回类型

qreal

Returns the requested manual shutter speed in seconds or -1.0 if automatic shutter speed is turned on.

PySide2.QtMultimedia.QCameraExposure. setAutoAperture ( ) ¶

Turn on auto aperture

PySide2.QtMultimedia.QCameraExposure. setAutoIsoSensitivity ( ) ¶

Turn on auto sensitivity

PySide2.QtMultimedia.QCameraExposure. setAutoShutterSpeed ( ) ¶

Turn on auto shutter speed

PySide2.QtMultimedia.QCameraExposure. setExposureCompensation ( ev ) ¶

参数

ev – qreal

另请参阅

exposureCompensation()

PySide2.QtMultimedia.QCameraExposure. setExposureMode ( mode ) ¶

参数

mode – ExposureMode

另请参阅

exposureMode()

PySide2.QtMultimedia.QCameraExposure. setFlashMode ( mode ) ¶

参数

mode – FlashModes

另请参阅

flashMode()

PySide2.QtMultimedia.QCameraExposure. setManualAperture ( aperture ) ¶

参数

aperture – qreal

Sets the manual camera aperture 值。

PySide2.QtMultimedia.QCameraExposure. setManualIsoSensitivity ( iso ) ¶

参数

iso – int

Sets the manual sensitivity to iso

PySide2.QtMultimedia.QCameraExposure. setManualShutterSpeed ( seconds ) ¶

参数

seconds – qreal

Set the manual shutter speed to seconds

PySide2.QtMultimedia.QCameraExposure. setMeteringMode ( mode ) ¶

参数

mode – MeteringMode

另请参阅

meteringMode()

PySide2.QtMultimedia.QCameraExposure. setSpotMeteringPoint ( point ) ¶

参数

point – QPointF

Allows setting the spot metering point to point .

另请参阅

spotMeteringPoint()

PySide2.QtMultimedia.QCameraExposure. shutterSpeed ( ) ¶

返回类型

qreal

Returns the current shutter speed in seconds.

PySide2.QtMultimedia.QCameraExposure. shutterSpeedChanged ( speed ) ¶

参数

speed – qreal

PySide2.QtMultimedia.QCameraExposure. shutterSpeedRangeChanged ( ) ¶

PySide2.QtMultimedia.QCameraExposure. spotMeteringPoint ( ) ¶

返回类型

QPointF

When supported, the spot metering point is the (normalized) position of the point of the image where exposure metering will be performed. This is typically used to indicate an “interesting” area of the image that should be exposed properly.

The coordinates are relative frame coordinates: QPointF (0,0) points to the left top frame point, QPointF (0.5,0.5) points to the frame center, which is typically the default spot metering point.

The spot metering point is only used with spot metering mode.

另请参阅

setSpotMeteringPoint()