---
title: mediaType
framework: avfoundation
role: symbol
role_heading: Type Property
path: avfoundation/avcaptionsettingskey/mediatype
---

# mediaType

A key that identifies the output media type of a caption conversion operation.

## Declaration

```swift
static let mediaType: AVCaptionSettingsKey
```

## Discussion

Discussion This includes the media types closedCaption or subtitle, for example.

## See Also

### Keys

- [mediaSubType](avfoundation/avcaptionsettingskey/mediasubtype.md)
- [timeCodeFrameDuration](avfoundation/avcaptionsettingskey/timecodeframeduration.md)
- [useDropFrameTimeCode](avfoundation/avcaptionsettingskey/usedropframetimecode.md)