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# init(track:outputSettings:)

Creates an object that reads media data from an asset track.

```
init(track: AVAssetTrack, outputSettings: [String : Any]?)
```

## Parameters

`track`

The track from which to read media samples.

`outputSettings`

A dictionary of settings to use for sample output. Specify `nil` to receive samples in their storage format.

    You use keys and values from [Audio settings](/documentation/AVFoundation/audio-settings)    , [Video settings](/documentation/AVFoundation/video-settings)    , or     <doc://com.apple.documentation/documentation/CoreVideo/CVPixelBuffer>    , depending on the media type and the output format you require.

## Discussion

---

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