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

# Type

A 32-bit integer that identifies the atom type.

## Overview

Overview This field must be set to ‘ctts’.

## See Also

### Data fields

- [Size](quicktime-file-format/composition_offset_atom/size.md)
- [Version](quicktime-file-format/composition_offset_atom/version.md)
- [Flags](quicktime-file-format/composition_offset_atom/flags.md)
- [Entry count](quicktime-file-format/composition_offset_atom/entry_count.md)