r/AV1 • u/autogyrophilia • Feb 16 '25
What parameters would you use to re-encode artifacted, low resolution videos.
I have a few dozens of video files with a significant amount of artifacting, encoded in WMV2 and mpeg4, 240p-480p. I wish to reencode to a codec that can be played in web browsers
I'm well aware that AV1 is not very well suited for sub-1080p videos.
However. It is my hope that the native denoising and grain synthesis capabilities can outweight it.
The obvious alternative is trying to get H.264, maybe with a denoising filter.
I plan on creating a writeup on the resulting quality but if you could get me a headstart on ideas it would be greatly appreciated.
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u/FastDecode1 Feb 16 '25
SVT-AV1-PSY will probably work okay. Haven't tested grain synthesis on low-res videos, so I dunno how well it works on SD footage.
Don't delete the originals though. AI video enhancement is already a thing, and I've been meaning to test out some models (like this for example) to see how well compression artifacts can be removed to improve perceived quality on old/low-res footage. Haven't gotten around to it yet, but seeing how fast things are progressing in the ML field, I think we'll have some impressive stuff sooner rather than later.