# MetadataOutput_Callbacks
<!--Kit: Camera Kit-->
<!--Subsystem: Multimedia-->
<!--Owner: @qano-->
<!--SE: @leo_ysl-->
<!--TSE: @xchaosioda-->

## Overview

The struct describes the callbacks related to metadata output.

**Since**: 11

**Related module**: [OH_Camera](capi-oh-camera.md)

**Header file**: [metadata_output.h](capi-metadata-output-h.md)

## Summary

### Member Variables

| Name| Description|
| -- | -- |
| [OH_MetadataOutput_OnMetadataObjectAvailable](capi-metadata-output-h.md#oh_metadataoutput_onmetadataobjectavailable) onMetadataObjectAvailable | Callback to report the metadata output result.|
| [OH_MetadataOutput_OnError](capi-metadata-output-h.md#oh_metadataoutput_onerror) onError | Callback to report a metadata output error.|