---
title: CMClosedCaptionFormatDescription
framework: coremedia
role: symbol
role_heading: Type Alias
path: coremedia/cmclosedcaptionformatdescription
---

# CMClosedCaptionFormatDescription

A type you use to interact with closed caption format descriptions.

## Declaration

```swift
typealias CMClosedCaptionFormatDescription = CMFormatDescription
```

## See Also

### Format Description Types

- [CMFormatDescription](coremedia/cmformatdescription.md)
- [CMAudioFormatDescription](coremedia/cmaudioformatdescription.md)
- [CMMetadataFormatDescription](coremedia/cmmetadataformatdescription.md)
- [CMMuxedFormatDescription](coremedia/cmmuxedformatdescription.md)
- [CMTextFormatDescription](coremedia/cmtextformatdescription.md)
- [CMTimeCodeFormatDescription](coremedia/cmtimecodeformatdescription.md)
- [CMVideoFormatDescription](coremedia/cmvideoformatdescription.md)