---
title: containsFragments
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcomposition/containsfragments
---

# containsFragments

A Boolean value that indicates whether at least one movie fragment extends the asset.

## Declaration

```swift
var containsFragments: Bool { get }
```

## Discussion

Discussion For QuickTime movie files and MPEG-4 files, the value is true if canContainFragments is true and at least one moof box is present after the moov box.

## See Also

### Determining fragment support

- [canContainFragments](avfoundation/avcomposition/cancontainfragments.md)
- [overallDurationHint](avfoundation/avcomposition/overalldurationhint.md)