OH_DecodingOptions

typedef struct OH_DecodingOptions OH_DecodingOptions

Overview

The OH_DecodingOptions struct describes the decoding options encapsulated at the native layer. The struct is used to set decoding options and is passed in as an input parameter for creating a PixelMap. For details, see OH_ImageSourceNative_CreatePixelmap.

The struct cannot be directly operated. Instead, functions must be called to create and release the struct and operate the fields in the struct.

To create an OH_DecodingOptions object, call OH_DecodingOptions_Create.

To release an OH_DecodingOptions object, call OH_DecodingOptions_Release.

The table below describes the content and operation mode of the OH_DecodingOptions struct.

Field Type	Field Name	Field Description	Default Value	Getter Function	Setter Function
int32_t	pixelFormat	Pixel format.	RGBA_8888	OH_DecodingOptions_GetPixelFormat	OH_DecodingOptions_SetPixelFormat
uint32_t	index	Index of the image to decode.	0	OH_DecodingOptions_GetIndex	OH_DecodingOptions_SetIndex
float	rotate	Rotation angle.	0, in degree (deg)	OH_DecodingOptions_GetRotate	OH_DecodingOptions_SetRotate
Image_Size	desiredSize	Desired output size.	Original image size	OH_DecodingOptions_GetDesiredSize	OH_DecodingOptions_SetDesiredSize
Image_Region	desiredRegion	Region to decode.	Entire image	OH_DecodingOptions_GetDesiredRegion	OH_DecodingOptions_SetDesiredRegion
int32_t	desiredDynamicRange	Desired dynamic range.	SDR	OH_DecodingOptions_GetDesiredDynamicRange	OH_DecodingOptions_SetDesiredDynamicRange