---
title: Handler reference atom
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/video_media_information_atom/handler_reference_atom
---

# Handler reference atom

An atom that specifies the media handler component that is to be used to interpret the media’s data.

## Overview

Overview See Handler reference atom ('hdlr').

## See Also

### Data fields

- [Size](quicktime-file-format/video_media_information_atom/size.md)
- [Type](quicktime-file-format/video_media_information_atom/type.md)
- [Video media information header atom](quicktime-file-format/video_media_information_atom/video_media_information_header_atom.md)
- [Data information atom](quicktime-file-format/video_media_information_atom/data_information_atom.md)
- [Sample table atom](quicktime-file-format/video_media_information_atom/sample_table_atom.md)