Type Alias

AVTrackAssociationType

Constants for identifying how other tracks are associated with a track.

Declaration

typedef NSString *AVTrackAssociationType;

Topics

Track Association Types

AVTrackAssociationTypeAudioFallback

The track contains the same content as another track, but in a more widely supported format.

AVTrackAssociationTypeChapterList

The associated track contains chapter information for the base track.

AVTrackAssociationTypeForcedSubtitlesOnly

The subtitle track containing forced and non-forced subtitles is associated with a subtitle track containing only forced subtitles.

AVTrackAssociationTypeMetadataReferent

The metadata track is associated with the track being described or annotated.

AVTrackAssociationTypeSelectionFollower

The second track in the association is considered an appropriate default for the first track.

AVTrackAssociationTypeTimecode

The track is associated with a timecode track containing timing information for the original track.

See Also

Working with Associated Tracks

availableTrackAssociationTypes

An array of association types used to associate the track with other tracks.

- associatedTracksOfType:

Creates an array containing other tracks associated with the track that uses the specified association type.