Static AVAssetTrackSegmentsDidChangeNotification 

pub unsafe static AVAssetTrackSegmentsDidChangeNotification: &'static NSString

Available on crate feature AVAssetTrack only.

Posted when the array of segments of an AVFragmentedAssetTrack changes while the associated instance of AVFragmentedAsset is being minded by an AVFragmentedAssetMinder, but only for changes that occur after the status of the value of “ segments“ has reached AVKeyValueStatusLoaded.

See also Apple’s documentation