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# kVTDecompressionPropertyKey_FieldMode

Modes for special handling of interlaced content (optional).

```
let kVTDecompressionPropertyKey_FieldMode: CFString
```

## Discussion

This is an optional property for video decoders to implement. Decoders should only accept the modes that they will implement.

## Topics

### Field Modes

[`kVTDecompressionProperty_FieldMode_BothFields`](/documentation/VideoToolbox/kVTDecompressionProperty_FieldMode_BothFields)

[`kVTDecompressionProperty_FieldMode_BottomFieldOnly`](/documentation/VideoToolbox/kVTDecompressionProperty_FieldMode_BottomFieldOnly)

[`kVTDecompressionProperty_FieldMode_DeinterlaceFields`](/documentation/VideoToolbox/kVTDecompressionProperty_FieldMode_DeinterlaceFields)

[`kVTDecompressionProperty_FieldMode_SingleField`](/documentation/VideoToolbox/kVTDecompressionProperty_FieldMode_SingleField)

[`kVTDecompressionProperty_FieldMode_TopFieldOnly`](/documentation/VideoToolbox/kVTDecompressionProperty_FieldMode_TopFieldOnly)


---

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