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# AVMetadataFormat

A structure that defines metadata formats.

```
struct AVMetadataFormat
```

## Topics

### Metadata formats

[`hlsMetadata`](/documentation/AVFoundation/AVMetadataFormat/hlsMetadata)

The HLS metadata format.

[`iTunesMetadata`](/documentation/AVFoundation/AVMetadataFormat/iTunesMetadata)

The iTunes metadata format.

[`id3Metadata`](/documentation/AVFoundation/AVMetadataFormat/id3Metadata)

The ID3 metadata format.

[`isoUserData`](/documentation/AVFoundation/AVMetadataFormat/isoUserData)

The ISO user data metadata format.

[`quickTimeMetadata`](/documentation/AVFoundation/AVMetadataFormat/quickTimeMetadata)

The QuickTime metadata format.

[`quickTimeUserData`](/documentation/AVFoundation/AVMetadataFormat/quickTimeUserData)

The QuickTime user data metadata format.

[`unknown`](/documentation/AVFoundation/AVMetadataFormat/unknown)

An unknown metadata format.

### Initializers

[`init(rawValue:)`](/documentation/AVFoundation/AVMetadataFormat/init(rawValue:))

Creates a metadata format with a string value.


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