<!--
{
  "availability" : [
    "iOS: -",
    "iPadOS: -",
    "macCatalyst: -",
    "macOS: -",
    "tvOS: -",
    "visionOS: -",
    "watchOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "AVFoundation",
  "identifier" : "/documentation/AVFoundation/AVComposition/mediaSelectionGroup(forMediaCharacteristic:)",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "AVFoundation"
    ],
    "preciseIdentifier" : "c:objc(cs)AVComposition(im)mediaSelectionGroupForMediaCharacteristic:"
  },
  "title" : "mediaSelectionGroup(forMediaCharacteristic:)"
}
-->

# mediaSelectionGroup(forMediaCharacteristic:)

Returns a media selection group that contains one or more options with the specified media characteristic.

```
func mediaSelectionGroup(forMediaCharacteristic mediaCharacteristic: AVMediaCharacteristic) -> AVMediaSelectionGroup?
```

## Parameters

`mediaCharacteristic`

A media characteristic for which to obtain the available media selection options.

    Only [`audible`](/documentation/AVFoundation/AVMediaCharacteristic/audible)    , [`visual`](/documentation/AVFoundation/AVMediaCharacteristic/visual)    , and [`legible`](/documentation/AVFoundation/AVMediaCharacteristic/legible)     are currently supported.

- Pass [`audible`](/documentation/AVFoundation/AVMediaCharacteristic/audible) to return the group of available options for audio media in various languages and for various purposes, such as descriptive audio.
- Pass [`legible`](/documentation/AVFoundation/AVMediaCharacteristic/legible) to return the group of available options for subtitles in various languages and for various purposes.
- Pass [`visual`](/documentation/AVFoundation/AVMediaCharacteristic/visual) to return the group of available options for video media.

## Return Value

An [`AVMediaSelectionGroup`](/documentation/AVFoundation/AVMediaSelectionGroup) that contains one or more options with the specified media characteristic, or `nil` if none could be found.

## Discussion

Use the filtering methods [`AVMediaSelectionGroup`](/documentation/AVFoundation/AVMediaSelectionGroup) defines to filter the group’s options according to playability, locale, and additional media characteristics.

You can call this method without blocking the current thread after you’ve asynchronously loaded the [`availableMediaCharacteristicsWithMediaSelectionOptions`](/documentation/AVFoundation/AVAsset/availableMediaCharacteristicsWithMediaSelectionOptions) property.

---

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)