---
title: typeID
framework: coremedia
role: symbol
role_heading: Type Property
path: coremedia/cmformatdescription/typeid
---

# typeID

A type identifier that corresponds to a description object.

## Declaration

```swift
static var typeID: CFTypeID { get }
```

## See Also

### Constants

- [extensionKeysCommonWithImageBuffers](coremedia/cmformatdescription/extensionkeyscommonwithimagebuffers.md)
- [CMFormatDescription.MediaType](coremedia/cmformatdescription/mediatype-swift.struct.md)
- [CMFormatDescription.MediaSubType](coremedia/cmformatdescription/mediasubtype-swift.struct.md)
- [CMFormatDescription.TimeCode](coremedia/cmformatdescription/timecode.md)
- [CMFormatDescription.EqualityMask](coremedia/cmformatdescription/equalitymask.md)
- [CMFormatDescription.Extensions](coremedia/cmformatdescription/extensions-swift.struct.md)
- [CMFormatDescription.ParameterSetCollection](coremedia/cmformatdescription/parametersetcollection.md)