---
title: frameDuration
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avmutablevideocomposition/frameduration
---

# frameDuration

A time interval for which the video composition should render composed video frames.

## Declaration

```swift
var frameDuration: CMTime { get set }
```

## See Also

### Configuring video composition properties

- [renderSize](avfoundation/avmutablevideocomposition/rendersize.md)
- [renderScale](avfoundation/avmutablevideocomposition/renderscale.md)
- [animationTool](avfoundation/avmutablevideocomposition/animationtool.md)