<!--
{
  "documentType" : "article",
  "framework" : "CoreMedia",
  "identifier" : "/documentation/CoreMedia/text-format-constants",
  "metadataVersion" : "0.1.0",
  "role" : "collectionGroup",
  "title" : "Text Format Constants"
}
-->

# Text Format Constants

Types that identify text formats.

## Topics

### Constants

[`var kCMTextFormatType_3GText: CMTextFormatType`](/documentation/CoreMedia/kCMTextFormatType_3GText)

A type that describes 3GPP text media.

[`var kCMTextFormatType_QTText: CMTextFormatType`](/documentation/CoreMedia/kCMTextFormatType_QTText)

A type that describes QuickTime text media.


---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)