---
title: Size
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/track_reference_atom/size
---

# Size

A 32-bit integer that specifies the number of bytes in this track reference atom.

## See Also

### Data fields

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