---
title: Data reference index
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/video_sample_description/data_reference_index
---

# Data reference index

A 16-bit integer that contains the index of the data reference to use to retrieve data associated with samples that use this sample description.

## Overview

Overview Data references are stored in data reference atoms.

## See Also

### Data fields

- [Sample description size](quicktime-file-format/video_sample_description/sample_description_size.md)
- [Data format](quicktime-file-format/video_sample_description/data_format.md)
- [Reserved](quicktime-file-format/video_sample_description/reserved.md)
- [Version](quicktime-file-format/video_sample_description/version.md)
- [Revision level](quicktime-file-format/video_sample_description/revision_level.md)
- [Vendor](quicktime-file-format/video_sample_description/vendor.md)
- [Temporal quality](quicktime-file-format/video_sample_description/temporal_quality.md)
- [Spatial quality](quicktime-file-format/video_sample_description/spatial_quality.md)
- [Width](quicktime-file-format/video_sample_description/width.md)
- [Height](quicktime-file-format/video_sample_description/height.md)
- [Horizontal resolution](quicktime-file-format/video_sample_description/horizontal_resolution.md)
- [Vertical resolution](quicktime-file-format/video_sample_description/vertical_resolution.md)
- [Data size](quicktime-file-format/video_sample_description/data_size.md)
- [Frame count](quicktime-file-format/video_sample_description/frame_count.md)
- [Compressor name](quicktime-file-format/video_sample_description/compressor_name.md)