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AV1vfw allows you to encode videos into an AV1/AOM codec in any Video For Windows (vfw) compatible program.
Free software
OS:
File size: 2.4MB
Old versions
Version history
OS:
File size: 2.4MB
Old versions
Version history
Screenshots
Latest version
Download
Download AV1vfw 2.30 64-bit 3MB Win64
Download old versions
Software License
Supported operating systems
Windows Version history / Release notes / Changelog / What's New
v2.30 2025.02.02.
- updated svt-av1 encoder to v2.3.0, modified encoder options (derived list from svt-av1 app)
- updated libdav1d decoder to 1.5.1
- updated FFmpeg library to 6.1.2
- updated compiler to MinGW-w64 12.2
- added Fast Decode GUI option (equal to --fast-decode 2) (dialog.c, codec.c, config.c)
- added Zero Latency GUI option (equal to --pred-struct 1) (can cause visible quality loss) (dialog.c, codec.c)
- corrected decoder side (added low delay flag to FFmpeg) (decode.c)
- corrected pixel-format and required (16) padding conversions (codec.c)
- extended preset (speed vs quality) numbers to 10, default is 8 (higher settings may have major quality issues) (codec.c, config.c)
- updated svt-av1 encoder to v2.3.0, modified encoder options (derived list from svt-av1 app)
- updated libdav1d decoder to 1.5.1
- updated FFmpeg library to 6.1.2
- updated compiler to MinGW-w64 12.2
- added Fast Decode GUI option (equal to --fast-decode 2) (dialog.c, codec.c, config.c)
- added Zero Latency GUI option (equal to --pred-struct 1) (can cause visible quality loss) (dialog.c, codec.c)
- corrected decoder side (added low delay flag to FFmpeg) (decode.c)
- corrected pixel-format and required (16) padding conversions (codec.c)
- extended preset (speed vs quality) numbers to 10, default is 8 (higher settings may have major quality issues) (codec.c, config.c)
View full changelog
All features
General infos:
- Some GUI settings have no svt-av1 support yet (encoder may rejects these), like YUV, Tuning and Profile settings
- Enabling the Debug log level to Full can display some additional svt-av1 errors and infos
- It doesn't work properly under Windows 7 (at me), only under Win10 (wrong CPU detection)
- It's very slow, even in the fastest encoding mode (full HD encoding, 4 cores, AVX2, ~5 fps)
- AVX512 support is unofficial/experimental, disable it (on the GUI) at encoding problems (crash)
- Decoder side doesn't work properly at frame to frame decoding
- Some GUI settings have no svt-av1 support yet (encoder may rejects these), like YUV, Tuning and Profile settings
- Enabling the Debug log level to Full can display some additional svt-av1 errors and infos
- It doesn't work properly under Windows 7 (at me), only under Win10 (wrong CPU detection)
- It's very slow, even in the fastest encoding mode (full HD encoding, 4 cores, AVX2, ~5 fps)
- AVX512 support is unofficial/experimental, disable it (on the GUI) at encoding problems (crash)
- Decoder side doesn't work properly at frame to frame decoding
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Free software Ads = Free Download software and open source code but supported by advertising, usually with a included browser toolbar. It may be disabled when installing or after installation.
Trialware = Also called shareware or demo. Free Trial version available for download and testing with usually a time limit or limited functions.
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Portable version = A portable/standalone version is available. No installation is required.
v1.0.1 = Latest version available.
Download beta = It could be a Beta, RC(Release Candidate) or an Alpha / Nightly / Unstable version of the software.
Download 15MB = A direct link to the software download.
Win = Windows download version. It works on 32-bit and 64-bit Windows.
Win64 = Windows 64-bit download version. It works only on 64-bit Windows.
Mac = Mac download version. It works on 32-bit and 64-bit Mac OS.
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Portable = Portable version. No installation is required.
Ad-Supported = The software is bundled with advertising. Be careful when you install the software and disable addons that you don't want!
Visit developers site = A link to the software developer site.
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Download old versions = Free downloads of previous versions of the program.
Download 64-bit version = If you have a 64bit operating system you can download this version.
Download portable version = Portable/Standalone version meaning that no installation is required, just extract the files to a folder and run directly.
Portable version available = Download the portable version and you can just extract the files and run the program without installation.
Old versions available = Download old versions of the program.
Version history available = Complete changelog on our site.
= Windows version available. = Mac OS version available. = Linux version available.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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