SVT-AV1 v4.0

[charliebaby]

SVT-AV1 4.0 is out as the newest major feature release for this open-source AV1 video encoder that was originally started by Intel as an open-source project and now continuining on thanks to the Alliance For Open Media.

SVT-AV1 4.0 brings some API updates and with the breakage there yields the new 4.0 version. Exciting end-users though will be the continued performance improvements, ARM optimizations, and more with SVT-AV1 4.0:

- Significant improvements in AVIF and still image modes
~5-8x speedup M11-M0 at the same quality levels with tune MS-SSIM
~5-8% BD-Rate improvements at the same complexity with tune MS-SSIM
- Tradeoff improvements for the RTC modes:
~5-15% speedup at similar quality levels in --rtc mode across presets 7 - 11
- Tradeoff improvements for the Random Access mode (VOD use case) showing a 10-25% speedup across presets M7 down to M0 for --fast-decode 1 and 2
- Major feature updates for the visual quality mode with the completion porting all SVT-AV1-PSY applicable features for --tune vq for video and --tune iq for avif:
Added AC Bias, a psychovisual feature that improves detail preservation and film grain retention
- Update S-Frame support to allow setting it in a specific decode order option and with more qp options
- Further Arm Neon and SVE2 optimizations that improve high bitdepth encoding by an average of ~5% in low resolutions

SVT-AV1 v4.0 + FFMPEG SVT-AV1 v4.0
https://www.mediafire.com/file/20qruyh36nwrdrx/SvtAv1EncApp_v4.01.rar/file

SVT-AV1 v4.01

https://www.mediafire.com/file/20qruyh36nwrdrx/SvtAv1EncApp_v4.01.rar/file

Test SVT-AV1 v4.0 PRESET-1 speed 10FPS encoding :-)

https://prnt.sc/QCqv8TzwH0tG

[Z2697]

That grain/noise on the background looks awful :)
Or what's under the grain. Looks blocky.
Is that grain synthetic?

[rwill]

I don't see any grain, just a blocky background. Using Chrome here.

[charliebaby]

That grain/noise on the background looks awful :)
Or what's under the grain. Looks blocky.
Is that grain synthetic?

lol that's how the film is originally, look at her face, the clarity, not the background

[Z2697]

Then there's a question of where did you get the source from. (It's Collide (2016)) https://slow.pics/c/gwJn0Pds
Her? Last time I checked, Anthony Hopkins is "he".
Or the female appearance in the background? What a blurry face has to look at?

[charliebaby]

Then there's a question of where did you get the source from. (It's Collide (2016)) https://slow.pics/c/gwJn0Pds
Her? Last time I checked, Anthony Hopkins is "he".
Or the female appearance in the background? What a blurry face has to look at?

this is source BD = https://prnt.sc/X3LEQbI3bMwQ

[rwill]

The Emperor's new clothes sure do look fantastic !

[GeoffreyA]

lol that's how the film is originally, look at her face, the clarity, not the background

AV1 can be pretty sharp—any codec should be—but temporally, I've found a lot of strobing or flashing with grainy material. The forks are doing better, especially the HDR one.

[VoodooFX]

Is it still bad for < HD resolutions?

[Z2697]

It can be good at any resolution, if you want to save data or in a bandwidth constrained situation, and don't care about details that much (or if you are bandwidth constrained, you can't).
If your goal is not something similar to that, it probably won't be good at any resolution.
That said, it's the current state of the encoder. It might change in the future.

[Boulder]

Is it still bad for < HD resolutions?

I'd say that the -hdr fork with tune 0 and --max-32-tx-size 1 are the best bet for low resolutions.

[VoodooFX]

It can be good at any resolution, if you want to save data or in a bandwidth constrained situation, and don't care about details that much (or if you are bandwidth constrained, you can't).
If your goal is not something similar to that, it probably won't be good at any resolution.
That said, it's the current state of the encoder. It might change in the future.

MPEG1 is good too if you don't care about details that much.

[Z2697]

What can I say, try it yourself.

BTW using MPEG1 is more like don't care about most of the details in my book.

[VoodooFX]

Not sure I see significant changes to that area (I already tested "AC Bias" in some nightly build).
By "bad" I meant - worse that x265.

[Z2697]

It's simple, lower your target bitrate (to maybe equivalent of x265 crf 25) and it's better than x265 at most if not any resolution, otherwise it's worse at most if not any resolution.

[VoodooFX]

It's simple, lower your target bitrate (to maybe equivalent of x265 crf 25) and it's better than x265 at most if not any resolution, otherwise it's worse at most if not any resolution.

It was bad even at that x265 crf bitrate...

[charliebaby]

new Version SVTAV1APP.EXE 4.0.1

https://www.mediafire.com/file/20qruyh36nwrdrx/SvtAv1EncApp_v4.01.rar/file