# AVAsset Asynchronous properties for assets. ## Topics ### Loading duration and timing [`static var duration: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/duration) A time value that represents the duration of the asset. [`static var providesPreciseDurationAndTiming: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/providesPreciseDurationAndTiming) A Boolean value that indicates whether the asset provides precise duration and timing. [`static var minimumTimeOffsetFromLive: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/minimumTimeOffsetFromLive) A time value that indicates how closely playback follows the latest live stream content. ### Loading tracks [`static var tracks: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/tracks-48zyw) The tracks of media that an asset contains. ### Loading track groups [`static var trackGroups: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/trackGroups) The track groups an asset contains. ### Loading metadata [`static var metadata: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/metadata-16qej) The metadata items that an asset contains for all metadata identifiers. [`static var commonMetadata: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/commonMetadata-3j3n4) The metadata items that an asset contains for common metadata identifiers. [`static var availableMetadataFormats: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/availableMetadataFormats-4yiq8) The formats of metadata that an asset contains. [`static var creationDate: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/creationDate) A metadata item that indicates the creation date of an asset. [`static var lyrics: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/lyrics) The lyrics of the asset in a language suitable for the current locale. ### Loading suitability [`static var isPlayable: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/isPlayable-45h5v) A Boolean value that indicates whether an asset contains playable content. [`static var isExportable: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/isExportable) A Boolean value that indicates whether you can export an asset using an export session. [`static var isReadable: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/isReadable) A Boolean value that indicates whether you can extract the asset’s media data using an asset reader. [`static var isComposable: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/isComposable) A Boolean value that indicates whether you can use the asset in a media composition. [`static var isCompatibleWithSavedPhotosAlbum: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/isCompatibleWithSavedPhotosAlbum) A Boolean value that indicates whether you can write the asset to the Saved Photos album. [`static var isCompatibleWithAirPlayVideo: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/isCompatibleWithAirPlayVideo) A Boolean value that indicates whether the asset is compatible with AirPlay Video. ### Loading asset preferences [`static var preferredRate: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/preferredRate) The asset’s rate preference for playing its media. [`static var preferredTransform: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/preferredTransform-80d13) The asset’s transform preference to apply to its visual content during presentation or processing. [`static var preferredVolume: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/preferredVolume-20mb3) The asset’s volume preference for playing its audible media. [`static var preferredDisplayCriteria: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/preferredDisplayCriteria) The asset’s display mode preference for optimal playback of its content. ### Loading media selections [`static var allMediaSelections: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/allMediaSelections) The available media selections for an asset. [`static var preferredMediaSelection: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/preferredMediaSelection) The default media selections for the media selection groups of an asset. [`static var availableMediaCharacteristicsWithMediaSelectionOptions: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/availableMediaCharacteristicsWithMediaSelectionOptions) The media characteristics that provide media selection options. ### Loading chapter metadata [`static var availableChapterLocales: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/availableChapterLocales) The locales of an asset’s chapter metadata. ### Loading content protections [`static var hasProtectedContent: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/hasProtectedContent) A Boolean value that indicates whether the asset contains protected content. ### Loading fragment support [`static var canContainFragments: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/canContainFragments) A Boolean value that indicates whether you can extend the asset by fragments. [`static var containsFragments: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/containsFragments) A Boolean value that indicates whether at least one movie fragment extends the asset. [`static var overallDurationHint: AVAsyncProperty`](/documentation/AVFoundation/AVPartialAsyncProperty/overallDurationHint) A hint to the total duration of fragments that currently exist or may exist in the future. --- Copyright © 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)