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# AVAssetReferenceRestrictions

Restrictions to use when resolving references to external media data.

```
struct AVAssetReferenceRestrictions
```

## Topics

### Reference restrictions

[`AVAssetReferenceRestrictionForbidNone`](/documentation/AVFoundation/AVAssetReferenceRestrictions/AVAssetReferenceRestrictionForbidNone)

The asset should follow all media references.

[`forbidAll`](/documentation/AVFoundation/AVAssetReferenceRestrictions/forbidAll)

The asset can only reference media stored within its container file.

[`forbidRemoteReferenceToLocal`](/documentation/AVFoundation/AVAssetReferenceRestrictions/forbidRemoteReferenceToLocal)

A remote asset shouldn’t follow references to local media.

[`forbidLocalReferenceToRemote`](/documentation/AVFoundation/AVAssetReferenceRestrictions/forbidLocalReferenceToRemote)

A local asset shouldn’t follow references to remote media.

[`forbidCrossSiteReference`](/documentation/AVFoundation/AVAssetReferenceRestrictions/forbidCrossSiteReference)

A remote asset shouldn’t follow references to remote media data stored at a different host.

[`forbidLocalReferenceToLocal`](/documentation/AVFoundation/AVAssetReferenceRestrictions/forbidLocalReferenceToLocal)

A local asset shouldn’t follow references to local media data stored outside its container file.

[`defaultPolicy`](/documentation/AVFoundation/AVAssetReferenceRestrictions/defaultPolicy)

The asset should use the default reference restrictions policy.

### Initializers

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

Creates reference restrictions with an integer value.


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