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Component: AVAsset
Modern functions on OS X to query metadata from movie files.
Extract video frames, query lyrics and other metadata from video files.
Use AVExport functions to convert videos or extract snippet to new video file.
| Version | macOS | Windows | Linux | Server | iOS SDK |
| 5.2 / 10.2 | ✅ Yes | ❌ No | ❌ No | ✅ Yes, on macOS | ✅ Yes |
| Item | Details |
|---|---|
| AVAsset.AvailableMetadataFormats Returns a list representing available metadata formats. | Mac/iOS 5.2 |
| AVAsset.Duration Returns the duration of a asset in seconds. | Mac/iOS 5.2 |
| AVAsset.Framerate Looks for first video track and reports the nominal frame rate. | Mac/iOS 5.2 |
| AVAsset.HasProtectedContent Queries whether the asset has protected content. | Mac/iOS 5.2 |
| AVAsset.Image Returns an image for the asset at or near a specified time. | Mac/iOS 5.2 |
| AVAsset.ImageActualTime Queries actual time for image. | Mac/iOS 6.5 |
| AVAsset.IsComposable Queries whether this asset can be used in compositions. | Mac/iOS 5.2 |
| AVAsset.IsExportable Indicates whether the asset can be exported. | Mac/iOS 5.2 |
| AVAsset.IsPlayable Checks whether the asset, or its URL, can be played. | Mac/iOS 5.2 |
| AVAsset.IsReadable Checks whether the asset’s media data can be extracted | Mac/iOS 5.2 |
| AVAsset.Loaded Queries load status of asset. | Mac/iOS 5.2 |
| AVAsset.Lyrics Queries the lyrics of the asset suitable for the current locale. | Mac/iOS 5.2 |
| AVAsset.Metadata Queries metadata. | Mac/iOS 5.2 |
| AVAsset.MetadataKeys Queries metadata keys. | Mac/iOS 5.2 |
| AVAsset.NaturalHeight Queries the natural height of the video. | Mac/iOS 5.2 |
| AVAsset.NaturalWidth Queries the natural width of the video. | Mac/iOS 5.2 |
| AVAsset.OpenContainer Opens a movie from a container. | Mac/iOS 5.2 |
| AVAsset.OpenFile Opens an asset from a file. | Mac/iOS 5.2 |
| AVAsset.OpenURL Opens a movie from URL. | Mac/iOS 5.2 |
| AVAsset.PreferredRate Queries the natural rate at which the asset is to be played. | Mac/iOS 5.2 |
| AVAsset.PreferredVolume Queries the preferred volume at which the audible media of asset is to be played. | Mac/iOS 5.2 |
| AVAsset.Release Releases the object and all memory used for it. | Mac/iOS 5.2 |
| AVAsset.ReleaseAll Release all asset objects. | Mac/iOS 10.2 |
| AVAsset.RequestImageTimePrecision Requests to use high precision for timing of images. | Mac/iOS 6.5 |
| AVAsset.TimeCodes Reads time codes from asset. | Mac/iOS 5.4 |
| AVAsset.TrackCount Queries the track count. | Mac/iOS 5.2 |
| AVAsset.TrackInfo Queries track details. | Mac/iOS 7.4 |
| AVAsset.URL Queries the URL used to open this asset. | Mac/iOS 5.2 |
| AVAsset.WaitForLoaded Waits for file to be loaded. | Mac/iOS 8.0 |
29 functions shown.
These functions require a license (69%).
Release notes
- Version 10.2
- Added AVAsset.ReleaseAll function.
- Version 8.0
- Added AVAsset.WaitForLoaded function.
- Version 7.4
- Added AVAsset.TrackInfo function.
- Version 7.3
- Changed AVAsset.OpenContainer to accept wav files.
Blog Entries
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