---
title: AVCaptionUnitsType.unspecified
framework: avfoundation
role: symbol
role_heading: Case
path: avfoundation/avcaptionunitstype/unspecified
---

# AVCaptionUnitsType.unspecified

An unspecified unit type.

## Declaration

```swift
case unspecified
```

## Discussion

Discussion An unspecified unit type indicates the caption dimension is invalid.

## See Also

### Unit types

- [AVCaptionUnitsType.cells](avfoundation/avcaptionunitstype/cells.md)
- [AVCaptionUnitsType.percent](avfoundation/avcaptionunitstype/percent.md)