---
title: transform
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avassetwriterinput/transform
---

# transform

The transform to use for display of the output’s visual media.

## Declaration

```swift
var transform: CGAffineTransform { get set }
```

## Discussion

Discussion By default, the input uses the CGAffineTransformIdentity transform. You can’t set this value after writing starts.

## See Also

### Configuring presentation

- [naturalSize](avfoundation/avassetwriterinput/naturalsize.md)
- [preferredVolume](avfoundation/avassetwriterinput/preferredvolume.md)
- [mediaTimeScale](avfoundation/avassetwriterinput/mediatimescale.md)
- [marksOutputTrackAsEnabled](avfoundation/avassetwriterinput/marksoutputtrackasenabled.md)