AVPlayerItem
E761518
AVPlayerItem is an AVFoundation class that models a single piece of timed audiovisual media for playback, providing timing, status, and presentation state used by AVPlayer.
All labels observed (1)
| Label | Occurrences |
|---|---|
| AVPlayerItem canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T8820861 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: AVPlayerItem Context triple: [AVFoundation, coreClass, AVPlayerItem]
-
A.
AVAsset
AVAsset is a fundamental AVFoundation class that models timed audiovisual media, providing a read-only representation of video, audio, and related metadata used for playback, editing, and export on Apple platforms.
-
B.
AVURLAsset
AVURLAsset is an AVFoundation class that represents audiovisual media located at a URL, providing an interface for loading and inspecting its timed metadata and track information.
-
C.
AVFoundation
AVFoundation is Apple’s comprehensive framework for working with time-based audiovisual media, providing APIs for capturing, editing, processing, and playing audio and video across its platforms.
-
D.
AVAudioPlayer
AVAudioPlayer is an iOS and macOS framework class that provides a high-level interface for playing audio files, including control over playback, volume, looping, and metering.
-
E.
AVAssetExportSession
AVAssetExportSession is an AVFoundation class in Apple’s media framework used to transcode and export audiovisual assets to a specified file format and quality.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: AVPlayerItem Target entity description: AVPlayerItem is an AVFoundation class that models a single piece of timed audiovisual media for playback, providing timing, status, and presentation state used by AVPlayer.
-
A.
AVAsset
AVAsset is a fundamental AVFoundation class that models timed audiovisual media, providing a read-only representation of video, audio, and related metadata used for playback, editing, and export on Apple platforms.
-
B.
AVURLAsset
AVURLAsset is an AVFoundation class that represents audiovisual media located at a URL, providing an interface for loading and inspecting its timed metadata and track information.
-
C.
AVFoundation
AVFoundation is Apple’s comprehensive framework for working with time-based audiovisual media, providing APIs for capturing, editing, processing, and playing audio and video across its platforms.
-
D.
AVAudioPlayer
AVAudioPlayer is an iOS and macOS framework class that provides a high-level interface for playing audio files, including control over playback, volume, looping, and metering.
-
E.
AVAssetExportSession
AVAssetExportSession is an AVFoundation class in Apple’s media framework used to transcode and export audiovisual assets to a specified file format and quality.
- F. None of above. chosen
Statements (70)
| Predicate | Object |
|---|---|
| instanceOf |
AVFoundation class
ⓘ
class ⓘ |
| availableIn | Swift ⓘ |
| conformsTo | NSObject ⓘ |
| definedInFramework | AVFoundation ⓘ |
| hasInitializer |
+ playerItemWithAsset:
ⓘ
+ playerItemWithURL: ⓘ - initWithAsset: ⓘ - initWithURL: ⓘ |
| hasNotification |
AVPlayerItemDidPlayToEndTimeNotification
ⓘ
AVPlayerItemFailedToPlayToEndTimeNotification ⓘ AVPlayerItemPlaybackStalledNotification ⓘ |
| hasProperty |
asset
ⓘ
audioMix ⓘ automaticallyPreservesTimeOffsetFromLive ⓘ canPlayFastForward ⓘ canPlayFastReverse ⓘ canPlaySlowForward ⓘ canPlaySlowReverse ⓘ canSeekBackward ⓘ canSeekForward ⓘ canStepBackward ⓘ canStepForward ⓘ canUseNetworkResourcesForLiveStreamingWhilePaused ⓘ currentDate ⓘ currentTime ⓘ duration ⓘ error ⓘ externalMetadata ⓘ forwardPlaybackEndTime ⓘ isPlaybackBufferEmpty ⓘ isPlaybackBufferFull ⓘ isPlaybackLikelyToKeepUp ⓘ loadedTimeRanges ⓘ preferredForwardBufferDuration ⓘ reversePlaybackEndTime ⓘ seekableTimeRanges ⓘ status ⓘ textStyleRules ⓘ tracks ⓘ videoComposition ⓘ |
| hasStatusValue |
AVPlayerItemStatusFailed
ⓘ
AVPlayerItemStatusReadyToPlay ⓘ AVPlayerItemStatusUnknown ⓘ |
| language | Objective-C ⓘ |
| notifiesVia | NSNotificationCenter ⓘ |
| observableVia | Key-value observing ⓘ |
| platform |
Apple platforms
ⓘ
linked to:
Apple platforms APIs
iOS ⓘ macOS ⓘ tvOS ⓘ watchOS ⓘ |
| primaryRole | models a single piece of timed audiovisual media for playback ⓘ |
| provides |
presentation state information
ⓘ
status information ⓘ timing information ⓘ |
| supportsMediaType |
audio
ⓘ
closed captions ⓘ legible media ⓘ subtitles ⓘ video ⓘ |
| supportsOperation |
adding and removing tracks
ⓘ
applying audio mixes ⓘ applying video compositions ⓘ seeking ⓘ time-based observation ⓘ |
| threadSafety | generally not thread-safe for mutation from multiple threads ⓘ |
| usedBy | AVPlayer ⓘ |
| usedWith |
AVPlayerLayer
ⓘ
AVQueuePlayer ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: AVPlayerItem Description of subject: AVPlayerItem is an AVFoundation class that models a single piece of timed audiovisual media for playback, providing timing, status, and presentation state used by AVPlayer.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.