# OH_Pixelmap_HdrDynamicMetadata

## Overview

The OH_Pixelmap_HdrDynamicMetadata struct describes the dynamic metadata values available for the key **DR_DYNAMIC_METADATA**.

**Since**: 12

**Related module**: [Image_NativeModule](capi-image-nativemodule.md)

**Header file**: [pixelmap_native.h](capi-pixelmap-native-h.md)

## Summary

### Member Variables

| Name| Description|
| -- | -- |
| uint8_t* data | Value of dynamic metadata.|
| uint32_t length | Length of the dynamic metadata value.|