this post was submitted on 19 Jul 2023
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AV1

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AV1 CRF default? (lemmy.world)
submitted 2 years ago by smalitro@lemmy.world to c/av1@lemmy.world
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Ffmpeg AV1 is a fantastic codec. Open and promising a better compression ratio than HEVC / AVC.

However I am unclear right now about the possible CRF settings.

x264 defaults to a CRF of 23 x265 defaults to a CRF to 28

These two seem to have a similar visual quality for me.

What is the corresponding CRF for AV1 โ€“ what CRF has a similar quality and what is the default?

Please excuse if this question was asked before. I googled and searched reddit. However I only found complicated answers wits PSNR etc but no simply estimate answer.

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[โ€“] CCatMan@lemmy.one 1 points 2 years ago

I'm trying a 1080 bluray rip I did at crf 30. I read somewhere that I should using preset 4.1 and between 28 and 35 for 1080... I'll let you how how it comes out in 15 hours lol.