AVFoundation

Hello Apple,

I want to add a CALayer in my video composition as a individual track so I can modify it’s property and make my desired transform on it (I want to add image layer under my video track) and I found below class which could be useful for it but I couldn’t able to find any example neither on apple docs nor in community so would you please give me detail description about it’s uses with example so I can achive my desired output.

class AVVideoCompositionCoreAnimationTool {

public convenience init(additionalLayer layer: CALayer, asTrackID trackID: CMPersistentTrackID)
}

Thanks

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