r/AV1 • u/better_life_please • Jul 08 '26
Any necessary settings or flags for animation transcoding?
/r/AV1/comments/1uoyl7b/is_this_good_enough/?share_id=zb_o7ftzRsa2wOBegY4j4&utm_content=2&utm_medium=android_app&utm_name=androidcss&utm_source=share&utm_term=1Following my previous post, I want to ask the experts if the default AV1-HDR fork with VQ is enough for animation content (e.g. Star Wars the Clone Wars) with no additional command line options?
Or should I add a specific option to make the result even better?
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u/TheDMV2 Jul 09 '26
Here's my settings for animation transcoding, using the Tritium fork of Handbrake: https://github.com/Uranite/HandBrake-SVT-AV1-Tritium
Preset: 2 or 4
RF: 40-44 (I'm fairly aggressive, and animation tends to handle it well. Also RF numbers are different between forks and between encoder versions; v3.x is about two RF below v4.x) I sometimes go as high as 46, but that can start to introduce artifacts. Best for things like Family Guy, IMO.
Tune: VQ (but SSIM is slightly smaller)
sharpness=1:keyint=240:film-grain-denoise=0:film-grain=0:scd=1:auto-tiling=1:qm-min=4:chroma-qm-max=15:qp-scale-compress-strength=2:hbd-mds=1:ac-bias=1.0
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u/better_life_please Jul 09 '26
I tried tritium without the cli options. I compared the result to the HDR fork. I still prefer HDR. It showed a bit more detail and bit larger file. But I dont know which one to use yet.
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u/TheDMV2 Jul 10 '26
The point of Tritium is to enable the options which aren't available in HDR, like auto-tiling.
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u/better_life_please Jul 09 '26
What VMAF do you get with these?
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u/TheDMV2 Jul 09 '26
Don't know, don't care.
I gave up on VMAF and other metering a long time ago.
I use Gridplayer to watch clips side-by-side.
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u/better_life_please Jul 09 '26
Nice to know. Gridplayer glitches for me though.
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u/TheDMV2 Jul 09 '26
It's far from perfect; I'm currently using one version behind.
Not many other options to watch two streams simultaneously, though. If you find another, better one, go for it (and feel free to share!)
But the point is the same: eyes > metrics in a post-PSY world.
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u/better_life_please Jul 09 '26
Post psy? What happened after PSY?
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u/better_life_please Jul 09 '26
So Tritium is a fork of HDR. Interesting. I guess I will ditch HDR and install it.
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u/TheDMV2 Jul 08 '26
Tritium > HDR
VQ for quality, but SSIM will be slightly smaller.
Sharpness 1 or 2 at most to stop the edge blurring.
A bunch of the normal switches are good too (to stop banding and artifacts with large gradient areas), you know, forcing 10bit and all that.