harmony 鸿蒙OhosPixelMapInfo

2025-06-12 浏览 (1)

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

NameDescription
uint32_t widthImage width, in pixels.
uint32_t heightImage height, in pixels.
uint32_t rowSizeNumber of bytes that each row of the image occupies in the memory.
int32_t pixelFormatPixel 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:

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

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.

width

uint32_t OhosPixelMapInfo::width

Description

Image width, in pixels.

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