---
title: Type
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/track_reference_atom/type
---

# Type

A 32-bit integer that identifies the atom type.

## Overview

Overview This field must be set to 'tref'.

## See Also

### Data fields

- [Size](quicktime-file-format/track_reference_atom/size.md)
- [Track reference type atom](quicktime-file-format/track_reference_atom/track_reference_type_atom.md)