---
title: premultipliedAlpha
framework: coremedia
role: symbol
role_heading: Type Property
path: coremedia/cmformatdescription/extensions-swift.struct/value/alphachannelmode/premultipliedalpha
---

# premultipliedAlpha

## Declaration

```swift
static let premultipliedAlpha: CMFormatDescription.Extensions.Value.AlphaChannelMode
```

## See Also

### Alpha Channel Modes

- [straightAlpha](coremedia/cmformatdescription/extensions-swift.struct/value/alphachannelmode/straightalpha.md)