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

# Size

A 32-bit integer that specifies the number of bytes in this base media information atom.

## See Also

### Data fields

- [Type](quicktime-file-format/base_media_information_atom/type.md)
- [Base media information header atom](quicktime-file-format/base_media_information_atom/base_media_information_header_atom.md)