Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > Video Encoding > VP9 and AV1

Reply
 
Thread Tools Search this Thread Display Modes
Old 20th June 2023, 10:11   #101  |  Link
hajj_3
Registered User
 
Join Date: Mar 2004
Posts: 1,134
v1.6.0 - 2023-06-18

Encoder:

Improve the tradeoffs for the random access mode across presets M1-M13:
Speeding up the higher quality presets by 30-40%
Improving the BD-rate by 1-4% for the faster presets
Improve the tradeoffs for the low delay mode for both screen content and non-screen content encoding modes
Add a toggle to remove the legacy one-frame buffer at the input of the pipeline allowing the low delay mode to operate at sub-frame processing latencies
Add a new API allowing the user to specify quantization offsets for a region of interest per frame

Build, cleanup and bug fixes:

Various cleanups and functional bug fixes
Fix the startup minigop size BD-rate loss
Add ability to run the ci-testing offline
hajj_3 is offline   Reply With Quote
Old 14th December 2023, 20:04   #102  |  Link
ShortKatz
Registered User
 
Join Date: Aug 2018
Location: Germany
Posts: 123
Version 1.8.0

Quote:
Encoder

Improve the tradeoffs for the random access mode across presets:
Speedup CRF presets M6 to M0 by 17-53% while maintaining similar quality levels
Re-adjust CRF presets M7 to M13 for better quality with BD-rate gains ranging from 1-4%
Improve the quality and speed of the 1-pass VBR mode
More details on the per preset improvements can be found in MR !2143
Add API allowing to update bitrate / CRF and Key_frame placement during the encoding session for CBR lowdelay mode and CRF Random Access mode
ARM Neon SIMD optimizations for most critical kernels allowing for a 4.5-8x fps speedup vs the c implementation
Cleanup and bug fixes and documentation

Various cleanups and functional bug fixes
Update the documentation for preset options and individual features
ShortKatz is offline   Reply With Quote
Old 4th January 2024, 18:55   #103  |  Link
Marsu42
Huba Huba
 
Marsu42's Avatar
 
Join Date: Aug 2005
Location: Palumbian Jungle
Posts: 78
Quote:
Originally Posted by ShortKatz View Post
Version 1.8.0
Does anyone happen to have a Windows binary to share?

Strangely, except for being built into Handbrake (nightly) and ffmpeg I cannot finde recent "SvtAv1EncApp.exe" anywere for use with av1an or custom command lines.

And yes, I know about just-learn-to-compile-it-yourself so with me asking this isn't the answer.
__________________
"The innocent have nothing to fear" :stupid:
Marsu42 is offline   Reply With Quote
Old 5th January 2024, 06:55   #104  |  Link
Boulder
Pig on the wing
 
Boulder's Avatar
 
Join Date: Mar 2002
Location: Finland
Posts: 5,752
There are some community builds available at the SVT-AV1 Discord channel.
__________________
And if the band you're in starts playing different tunes
I'll see you on the dark side of the Moon...
Boulder is offline   Reply With Quote
Old 10th January 2024, 17:21   #105  |  Link
nakTT
Registered User
 
Join Date: Dec 2008
Posts: 415
Quote:
Originally Posted by ShortKatz View Post
Version 1.8.0
Tested the ARM version of SVT-AV1 1.8.0 and it is as good as advertised. It is WAYYYY faster than the last one I tested (Version 1.4.1 released on 2022-12-12). HUGE progress made on the ARM front of the SVT-AV1 encoder within the space of just ONE year.
Many thanks to the AV1 development team.

Last edited by nakTT; 10th January 2024 at 20:02.
nakTT is offline   Reply With Quote
Old 11th January 2024, 22:33   #106  |  Link
Blue_MiSfit
Derek Prestegard IRL
 
Blue_MiSfit's Avatar
 
Join Date: Nov 2003
Location: Los Angeles
Posts: 5,990
I highly recommend you get media-autobuild-suite up and running to cut binaries for you
__________________
These are all my personal statements, not those of my employer :)
Blue_MiSfit is offline   Reply With Quote
Old 1st March 2024, 23:10   #107  |  Link
ShortKatz
Registered User
 
Join Date: Aug 2018
Location: Germany
Posts: 123
Does somebody know if there are plans to add support for YUV422 to SVT-AV1 ?
The only (outdated) information I found is this: https://www.phoronix.com/news/Intel-...-Decode-FFmpeg
ShortKatz is offline   Reply With Quote
Old 14th March 2024, 10:44   #108  |  Link
nakTT
Registered User
 
Join Date: Dec 2008
Posts: 415
Version 2.0.0
Quote:
Changelog

[2.0.0] - 2024-03-13

Major API updates

- Changed the API signaling the End Of Stream (EOS) with the last frame vs with an empty frame
- OPT_LD_LATENCY2 making the change above is kept in the code to help devs with integration
- Removed the 3-pass VBR mode which changed the calling mechanism of multi-pass VBR
- Moved to a new versioning scheme where the project major version will be updated everytime API/ABI is changed


Encoder

- Improve the tradeoffs for the random access mode across presets:
- Speedup presets MR by ~100% and improved quality along with tradeoff improvements across the higher quality presets (!2179)
- Improved the compression efficiency of presets M9-M13 by 1-4% (!2179)
- Simplified VBR multi-pass to use 2 passes to allow integration with ffmpeg
- Continued adding ARM optimizations for functions with c_only equivalent
- Replaced the 3-pass VBR with a 2-pass VBR to ease the multi-pass integration with ffmpeg
- Memory savings of 20-35% for LP 8 mode in preset M6 and below and 1-5% in other modes / presets


Cleanup and bug fixes and documentation

- Various cleanups and functional bug fixes
- Update the documentation to reflect the rate control changes
nakTT is offline   Reply With Quote
Old 27th April 2024, 08:17   #109  |  Link
ShortKatz
Registered User
 
Join Date: Aug 2018
Location: Germany
Posts: 123
Did someone experiment already with the new variance boost feature, especially with the values of variance-boost-strength and variance-octile?
ShortKatz is offline   Reply With Quote
Old 27th April 2024, 08:24   #110  |  Link
Boulder
Pig on the wing
 
Boulder's Avatar
 
Join Date: Mar 2002
Location: Finland
Posts: 5,752
Quote:
Originally Posted by ShortKatz View Post
Did someone experiment already with the new variance boost feature, especially with the values of variance-boost-strength and variance-octile?
The default values are very good already and prevent boosting areas unnecessarily. For darker material, changing strength to 3 and/or octile to 4 can be useful.
__________________
And if the band you're in starts playing different tunes
I'll see you on the dark side of the Moon...
Boulder is offline   Reply With Quote
Old 27th April 2024, 13:06   #111  |  Link
ShortKatz
Registered User
 
Join Date: Aug 2018
Location: Germany
Posts: 123
OK, thanks. I used the default values for some time and started with variance-boost-strength=3 today, so not much experience yet.
ShortKatz is offline   Reply With Quote
Old 30th April 2024, 18:38   #112  |  Link
benwaggoner
Moderator
 
Join Date: Jan 2006
Location: Portland, OR
Posts: 4,813
Quote:
Originally Posted by Boulder View Post
The default values are very good already and prevent boosting areas unnecessarily. For darker material, changing strength to 3 and/or octile to 4 can be useful.
I imagine different parameters would be optimal for gamma versus PQ. Algorithms based on code values often fall apart when applied to PQ if they don't account for the big perceptual differences in PQ code values. For example, gamma needs lower QPs near black, but PQ does not. However PQ doesn't have a defined max brightness like gamma does, and can vary hugely between titles and shots.
__________________
Ben Waggoner
Principal Video Specialist, Amazon Prime Video

My Compression Book
benwaggoner is offline   Reply With Quote
Old 3rd May 2024, 21:05   #113  |  Link
ShortKatz
Registered User
 
Join Date: Aug 2018
Location: Germany
Posts: 123
There is now a handy documentation for the new variance boost feature:
https://gitlab.com/AOMediaCodec/SVT-...iance-Boost.md
ShortKatz is offline   Reply With Quote
Old 6th May 2024, 22:45   #114  |  Link
benwaggoner
Moderator
 
Join Date: Jan 2006
Location: Portland, OR
Posts: 4,813
Quote:
Originally Posted by ShortKatz View Post
There is now a handy documentation for the new variance boost feature:
https://gitlab.com/AOMediaCodec/SVT-...iance-Boost.md
Great link with some helpful illustrations.
__________________
Ben Waggoner
Principal Video Specialist, Amazon Prime Video

My Compression Book
benwaggoner is offline   Reply With Quote
Old 10th May 2024, 03:03   #115  |  Link
BlueSwordM
Registered User
 
BlueSwordM's Avatar
 
Join Date: Dec 2021
Location: Canada
Posts: 23
SVT-AV1-PSY 2.0.0-A Release:
https://github.com/gianni-rosato/svt...s/tag/v2.0.0-A

This time, we've decided to change the way we name these updates as they've been difficult to keep track of versioning against mainline SVT-AV1 and our own. We'll still follow the cadence of mainline SVT-AV1, but with letter releases added in between for additional clarity.

Quote:
## PSY Updates

### Features
- The CRF range, previously capped at 63, has been extended to a maximum value of 70. It can also be incremented in quarter increments of 0.25
- New option: `--enable-dlf 2` for a slower, more accurate deblocking loop filter
- New option: `--qp-scale-compress-strength` *(0 to 3)* which sets a strength for the QP scale algorithm to compress values across all temporal layers. Higher values result in more consistent video quality
- New option: `--frame-luma-bias` *(0 to 100)* enables experimental frame-level luma bias to improve quality in dark scenes by adjusting frame-level QP based on average luminance across each frame

### Quality & Performance
- A temporal layer chroma qindex offset has been added to Tune 3 for more consistent quality across frames when encoding
- Minor speed bump to Preset 8
- Encoder innovation:
Dynamic delta_q_res switching implemented to help reduce signaling overhead, which should improve quality especially at CRF ≥40!
- Other general improvements to Tune 3

### Documentation
- PNG images have been replaced with smaller lossless WebP images, resulting in faster loading & repository cloning times.
- More consistent & thorough [PSY Development page](https://github.com/gianni-rosato/svt...Development.md), including build instructions

### Bug Fixes
- Help menu formatting adjusted for less frequent underlining
- `--progress 2` no longer reports the same information as `--progress 3`

### Other
- Introducing **PSY Micro-releases**! Each micro-release will be marked with a letter, bringing a bundle of new features & improvements. The release letter will reset back to the initial `A` each time our mainline version is updated. More info can be found in this project's README & the PSY Development page
Yes, this is a near copy paste of what I've posted on other public forums
BlueSwordM is offline   Reply With Quote
Old 19th May 2024, 15:58   #116  |  Link
ShortKatz
Registered User
 
Join Date: Aug 2018
Location: Germany
Posts: 123
Version 2.1 with variance boost has been released.

Quote:
[2.1.0] - 2024-05-17
API updates

One config parameter added within the padding size. Config param structure size remains unchanged
Presets 6 and 12 are now pointing to presets 7 and 13 respectively due to the lack of spacing between the presets
Further preset shuffling is being discussed in #2152


Encoder

Added variance boost support to improve visual quality for the tune vq mode
Improve the tradeoffs for the random access mode across presets:
Speedup of 12-40% presets M0, M3, M5 and M6 while maintaining similar quality levels
Improved the compression efficiency of presets M11-M13 by 1-2% ( !2213)
Added ARM optimizations for functions with c_only equivalent

Cleanup, build, bug fixes and documentation

Use nasm as a default assembler and yasm as a fallback
Fix performance regression for systems with multiple processor groups
Enable building SvtAv1ApiTests and SvtAv1E2ETests for ARM
Added variance boost documentation
Added a mailmap file to map duplicate git generated emails to the appropriate author

https://gitlab.com/AOMediaCodec/SVT-AV1/-/releases
ShortKatz is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 18:38.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.