Created attachment 153354 [details]
Example animations (gif, apng, webp, avif, jxl): 15px blinking square

SUMMARY
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Currently qtav player is used for animated images playback, but it doesn't work well with short looped images (sometimes there is a сonsiderable delay between each loop) and it often freezes during playback. Previewing WebP animation results in a black screen (but it does work in MPV / Gwenview) and JXL animations not work at all.
Would it be possible to add animated images playback via QMovie to the StackedView?
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KDE Frameworks Version: 5.98.0
Qt Version: 5.15.6
ffmpeg version: 5.0.1

ADDITIONAL INFORMATION
There is a check for animated images in:
core/app/views/stack/stackedview.cpp:341 void StackedView::setPreviewItem
363: DImg::isAnimatedImage(info.fileUrl().toLocalFile())

Thanks for amazing work on digikam.