ios - UIImage set image vs AVPlayer seek method choice -


this video editor app's screenshot, feature finding frame in video video's cover, , send video , frame image server.

in red part, editor use avassetimagegenerator generates series of image preview.you can slide orange part view in red part left right.when slide orange view, view change image inside itself, avplayer seek: method effect, want know whether set orange part avplayer use seek: method, or set part uiimageview change image property? these ways affect performance?

enter image description here

finally,i use avplayer in orange part, seektotime:tolerancebefore:toleranceafter: method, can preview accurate frame @ right time, , performance pretty well.


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