---
title: magicCookie
framework: coremedia
role: symbol
role_heading: Type Property
path: coremedia/cmformatdescription/equalitymask/magiccookie
---

# magicCookie

## Declaration

```swift
static let magicCookie: CMFormatDescription.EqualityMask
```

## See Also

### Equality Masks

- [all](coremedia/cmformatdescription/equalitymask/all.md)
- [channelLayout](coremedia/cmformatdescription/equalitymask/channellayout.md)
- [extensions](coremedia/cmformatdescription/equalitymask/extensions.md)
- [streamBasicDescription](coremedia/cmformatdescription/equalitymask/streambasicdescription.md)