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# AVMovieTrack

A track in a movie that conforms to the QuickTime or ISO base media file format.

```
class AVMovieTrack
```

## Topics

### Retrieving track information

[`alternateGroupID`](/documentation/AVFoundation/AVMovieTrack/alternateGroupID)

A value that identifies the track as a member of a particular alternate group.

[`mediaDataStorage`](/documentation/AVFoundation/AVMovieTrack/mediaDataStorage)

The storage container for media data added to a track.

[`mediaDecodeTimeRange`](/documentation/AVFoundation/AVMovieTrack/mediaDecodeTimeRange)

A range of decode times for the track’s media.

[`mediaPresentationTimeRange`](/documentation/AVFoundation/AVMovieTrack/mediaPresentationTimeRange)

A range of presentation times for the track’s media.


---

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