referenceRestrictions
The restrictions that an asset places on how it resolves references to external media.
Declaration
var referenceRestrictions: AVAssetReferenceRestrictions { get }Discussion
For AVURLAsset, this property reflects the value passed in for AVURLAssetReferenceRestrictionsKey, if any.
The default value for this property is defaultPolicy. See AVURLAssetReferenceRestrictionsKey for more information about reference restrictions.