---
title: kVTDecompressionProperty_FieldMode_TopFieldOnly
framework: videotoolbox
role: symbol
role_heading: Global Variable
path: videotoolbox/kvtdecompressionproperty_fieldmode_topfieldonly
---

# kVTDecompressionProperty_FieldMode_TopFieldOnly

## Declaration

```swift
let kVTDecompressionProperty_FieldMode_TopFieldOnly: CFString
```

## See Also

### Field Modes

- [kVTDecompressionProperty_FieldMode_BothFields](videotoolbox/kvtdecompressionproperty_fieldmode_bothfields.md)
- [kVTDecompressionProperty_FieldMode_BottomFieldOnly](videotoolbox/kvtdecompressionproperty_fieldmode_bottomfieldonly.md)
- [kVTDecompressionProperty_FieldMode_DeinterlaceFields](videotoolbox/kvtdecompressionproperty_fieldmode_deinterlacefields.md)
- [kVTDecompressionProperty_FieldMode_SingleField](videotoolbox/kvtdecompressionproperty_fieldmode_singlefield.md)