程序包 ohos.media.camera.params

类 ParameterKey

java.lang.Object

ohos.media.camera.params.ParameterKey

public final class ParameterKey
extends Object

Defines parameter keys supported by the camera.

从以下版本开始:

1

另请参阅:

CameraAbility.getSupportedParameters(), CameraAbility.getParameterRange(ParameterKey.Key)

嵌套类概要

嵌套类

限定符和类型	类	说明
static class	ParameterKey.Key<T>	Defines the type of a parameter key.

字段概要

字段

限定符和类型	字段	说明
static ParameterKey.Key<Scope<Integer>>	EXPOSURE_FPS_RANGE	Indicates the key of a frame rate range that the AE can reach.
static ParameterKey.Key<Byte>	IMAGE_COMPRESSION_QUALITY	Indicates compression quality control.
static ParameterKey.Key<Boolean>	IMAGE_MIRROR	Indicates mirror image control that can be used by a front-facing camera for selfies.
static ParameterKey.Key<byte[]>	VENDOR_CUSTOM	Indicates the key of a vendor-defined control.
static ParameterKey.Key<Boolean>	VIDEO_STABILIZATION	Indicates video stabilization control.

方法概要

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

EXPOSURE_FPS_RANGE

public static final ParameterKey.Key<Scope<Integer>> EXPOSURE_FPS_RANGE

Indicates the key of a frame rate range that the AE can reach.

This key can be used to set the frame rate range for image sampling. To set a specific frame rate, ensure that the upper and lower limits of the range are the same. For example, you can use [30,30] to set the sampling frame rate to 30 fps.

从以下版本开始:

3

IMAGE_COMPRESSION_QUALITY

public static final ParameterKey.Key<Byte> IMAGE_COMPRESSION_QUALITY

Indicates compression quality control.

Range from 1 to 100, typical value is 90. Larger is higher quality, lower compression.

从以下版本开始:

1

IMAGE_MIRROR

public static final ParameterKey.Key<Boolean> IMAGE_MIRROR

Indicates mirror image control that can be used by a front-facing camera for selfies.

从以下版本开始:

1

VENDOR_CUSTOM

public static final ParameterKey.Key<byte[]> VENDOR_CUSTOM

Indicates the key of a vendor-defined control.

从以下版本开始:

3

VIDEO_STABILIZATION

public static final ParameterKey.Key<Boolean> VIDEO_STABILIZATION

Indicates video stabilization control.

从以下版本开始:

1