---
title: Track input atoms
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/track_input_map_atom/track_input_atoms
---

# Track input atoms

A list of track input atoms specifying how to use the input data.

## Overview

Overview The input map defines all of the track’s secondary inputs. Each secondary input is defined using a separate track input atom. For more information, see Track input atom ('  in').

## See Also

### Data fields

- [Size](quicktime-file-format/track_input_map_atom/size.md)
- [Type](quicktime-file-format/track_input_map_atom/type.md)