---
title: size
framework: QuickTime File Format
role: symbol
role_heading: Data field
path: quicktime-file-format/quicktime_vr_sample_description/size
---

# size

The size, in bytes, of the sample description header structure.

## Overview

Overview The structure includes the VR world atom container contained in the data field.

## See Also

### Data fields

- [type](quicktime-file-format/quicktime_vr_sample_description/type.md)
- [reserved1](quicktime-file-format/quicktime_vr_sample_description/reserved1.md)
- [reserved2](quicktime-file-format/quicktime_vr_sample_description/reserved2.md)
- [dataRefIndex](quicktime-file-format/quicktime_vr_sample_description/datarefindex.md)
- [data](quicktime-file-format/quicktime_vr_sample_description/data.md)