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# kVTCompressionPropertyKey_AlphaChannelMode

```
let kVTCompressionPropertyKey_AlphaChannelMode: CFString
```

## Topics

### Modes

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

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


---

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