iOS 17 requires a video that is at least 3 seconds to create a Live Wallpaper. If you have a shorter video, here is a quick tip on working with short video to create a Live Wallpaper and pick a cover photo from anywhere in the video.
You can append the same video multiple times to create a longer video. You can also speed up the video if you want to see more motion on the lock screen. Check out the video below.
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