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The Scalable Video Technology for AV1 (SVT-AV1 Encoder and Decoder) is an AV1-compliant encoder/decoder library core. The SVT-AV1 encoder development is a work-in-progress targeting performance levels applicable to both VOD and Live encoding / transcoding video applications. The SVT-AV1 decoder implementation is targeting future codec research activities. Command line software.

Free software
OS: Win
File size: 1MB
Version history
9.2/10
3 votes
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Screenshots

SVT-AV1 screenshot

SVT-AV1 screenshot 2
Latest version

1.8.0 (December 11, 2023)



Download


Visit developer's site

Download SVT-AV1 1.8.0  1MB  Win



Software License

Free software / FOSS (Free download and also Free and Open Source Software)



Supported operating systems

WinWindows




Version history / Release notes / Changelog / What's New


## [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

View full changelog




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3 reviews, Showing 1 to 3 reviews


Beats H265 and H264 in terms of quality. H265 is around but has never achieved the popularity of H264.

Will AV1 or later codecs, become popular-who really knows? I have a feeling H264 will still be No1 for a while yet!

Will 8k TV nonsense trigger more consumer mania of 'I must have this latest TV,'because 8k must be better than 4k right?


Review by Bobby D on Jul 1, 2023 Version: 1.6.0 OS: Windows 10 64-bit Ease of use: 8/10 Functionality: 10/10 Value for money: 10/10 Overall: 9/10




A great free AV1 encoder, which get faster from version to version. I tested it with a GUI and was very suprised about the video quality. It is much better than h265 and even more better than h264. The encoding presets make it easier to encode video files to AV1-Format.
On my Intel i7 8700k CPU computer preset 8 delivers more details with the same bitrate in comparison to h265 or h264. It is impressive.
---
I am very unhappy about the missing executable files and the download link to the sourcecode.


Review by James Pous on Aug 25, 2022 Version: 1.2.0 OS: Windows 10 64-bit Ease of use: 7/10 Functionality: 9/10 Value for money: 10/10 Overall: 9/10




Rating by VincAlastor on Dec 31, 2020 Version: 0.8.6 OS: Windows 10 64-bit Ease of use: 10/10 Functionality: 8/10 Value for money: 10/10 Overall: 10/10


3 reviews, Showing 1 to 3 reviews

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Our hosted software are virus and malware scanned with several antivirus programs using www.virustotal.com. (NOTE! Just one virustotal warning is 99.9% a false positive. And some software might receive 2-6 warnings but it's if they are not all same virus/trojan then it's 99% false positives.)


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