内容

• 方法
• 详细描述

cameraDevice QML 基本类型

方法

• string description ()
• string id ()
• bool isDefault ()
• enumeration position ()

The cameraDevice value type describes the properties of a camera device that is connected to the system.

The list of camera devices can be queried from the MediaDevices type. To select a certain camera device set it as the device on Camera .

CaptureSession {
    camera: Camera {
        cameraDevice: mediaDevices.defaultVideoInput
    }
}
MediaDevices {
    id: mediaDevices
}
					

方法文档编制

string description ()

Returns a human readable name of the camera.

Use this string to present the device to the user.

string id ()

Returns the device id of the camera

This is a unique ID to identify the camera and may not be human-readable.

bool isDefault ()

Returns true if this is the default camera device.

enumeration position ()

Returns the physical position of the camera on the hardware system.

The returned value can be one of the following:

Property value	描述
CameraDevice.UnspecifiedPosition	The physical positition of the camera is unspecified.
CameraDevice.FrontFace	The camera is on the front of the hardware, facing towards the user.
CameraDevice.BackFace	The camera is on the back of the hardware, facing away from the user.