harmony 鸿蒙OhosPixelMapInfo

2025-06-12
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OhosPixelMapInfo

Overview

The OHOS::Media::OhosPixelMapInfo struct describes the information about a PixelMap.

System capability: SystemCapability.Multimedia.Image

Deprecated from: 10

Since: 8

Related module: Image

Header file: image_pixel_map_napi.h

Summary

Member Variables

Name	Description
uint32_t width	Image width, in pixels.
uint32_t height	Image height, in pixels.
uint32_t rowSize	Number of bytes that each row of the image occupies in the memory.
int32_t pixelFormat	Pixel format.

Member Variable Description

height

uint32_t OhosPixelMapInfo::height

Description

Image height, in pixels.

pixelFormat

int32_t OhosPixelMapInfo::pixelFormat

Description

Pixel format. The options are as follows:

Value	Description
0	Unknown format.
2	RGB_565.
3	RGBA_8888.
4	BGRA_8888.
5	RGB_888.
6	ALPHA_8.
7	RGBA_F16.
8	NV21.
9	NV12.

rowSize

uint32_t OhosPixelMapInfo::rowSize

Description

Number of bytes that each row of the image occupies in the memory.

In the case of DMA, the formula is as follows: Image width x Number of bytes of each pixel + Number of padding bytes at the end of each row. In the case of other types of memory, the formula is as follows: Image width x Number of bytes of each pixel.