Instance Property


A Boolean value that indicates whether the asset is capable of being extended by fragments.


var canContainFragments: Bool { get }


For QuickTime movie files and MPEG-4 files, the value of canContainFragments is true if an 'mvex' box is present in the 'moov' box. For those types, the 'mvex' box signals the possible presence of later 'moof' boxes.

See Also

Working with Fragmented Movies

var containsFragments: Bool

A Boolean value that indicates whether the asset is extended by at least one movie fragment.

var overallDurationHint: CMTime

A Boolean value that indicates the total duration of fragments that either exist now or may be appended in the future in order to extend the duration of the asset.

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