rav1e
libavif
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| rav1e | libavif | |
|---|---|---|
| 47 | 25 | |
| 2,816 | 796 | |
| 1.5% | 5.8% | |
| 8.9 | 9.2 | |
| about 21 hours ago | 5 days ago | |
| Assembly | C | |
| GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
rav1e
- Rav1E - The fastest and safest AV1 encoder.
- [rav1e git] Implement grain synthesis via photon noise tables
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All I Want for Christmas Are Useful Detail-Retention Settings
There should be some major rav1e improvements in the not-so-distant future that should benefit high fidelity encoding very nicely (https://github.com/xiph/rav1e/pull/2921). And I hope someday someone gets 10/12 bit tune butteraugli working in aomenc, should provide a massive efficiency boost in pretty much all scenarios.
- [rav1e git] Avoid temporary allocation of block importance costs (Small speed increase for rav1e, about 20-40% faster across speed 3 to speed 10)
- Dav1d, fast AV1 decoder, version 1.0.0 released
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H.264 is magic: a technical walkthrough
There's 3 that I know of,
libaom https://aomedia.googlesource.com/aom, the reference implementation.
https://gitlab.com/AOMediaCodec/SVT-AV1 - from the Alliance for Open Media, which Intel is deeply involved with and is spending a lot of time optimising.
https://github.com/xiph/rav1e - written in rust, also subject to a lot of optimising. It's not complete coverage of all features, intended to be used for places where libaom is too slow.
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AV1 codec report
AV1 currently gets used by Netflix, YouTube (right click on any big popular video "stats for nerds) and so on. It's open source and currently has 3 different encoders. AOM as it's reference encoder available here: https://aomedia.googlesource.com/ as well as SVT-AV1 as the production encoder (like x265 for H265) available here: https://gitlab.com/AOMediaCodec/SVT-AV1 and Rav1e as community project which I personally don't have a use for at all: https://github.com/xiph/rav1e
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Symphonia v0.5: ALAC, MKV, & gapless playback support
Not AFAIK. The only relevant effort I'm aware of is rav1e, and it has more assembly in it than Rust.
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Firefox now supports AV1 VA-API playback
No. There are hardware encoders. For software encoding while AV1's reference encoder is very slow; both rav1e and SVT-AV1 are usable on a higher end PC built in the last few years.
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I'm giving out microgrants to open source projects for the third year in a row! Brag about your projects here so I can see them, big or small!
I'm going to promote rav1e, an AV1 encoder written in Rust+ASM. Unlike the reference encoder, rav1e seeks to focus on psychovisual quality rather than pure metrics, and so to many people it is a promising alternative. However, it has some catching up to do in the speed department.
libavif
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What is AVIF?
The Alliance for Open Media's AVIF encoding and decoding library is also in a Github repo. Sharp, a Node module, has AVIF support. To make AVIF images, you can use avif.io, Squoosh, and the Squoosh command line tool aimed at supporting Node.js apps. GIMP and Paint.net support AVIF and there are Photoshop plugins. Mac has no plans to support AVIF, but you can easily install a codec plugin on Windows 10 for native support.
- libavif 0.10.1 released
- libavif 0.10.0 released
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How can I install avifenc on Ubuntu 20.04?
git clone --depth 1 https://github.com/AOMediaCodec/libavif.git
There’s no clear instructions on the repo to install libavif. Does anyone have any idea of how to install?
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How do you get your Windows builds?
- https://github.com/AOMediaCodec/libavif/issues/622
- libavif 0.9.3 released
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Transparency/Alpha channel?
And I'm using this avifenc.exe v0.9.0 from https://github.com/AOMediaCodec/libavif/releases/tag/v0.9.0 And using avifenc via Wine works fine, it converts yuv420p non-transparent video without problems.
It is currenly a known bug with y4m input in avifenc: https://github.com/AOMediaCodec/libavif/issues/771
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Why Your Website Should Use Dithered Images (2020)
> Look at the robo-dog's left ear!
Not sure how you created those AVIFs. The reference AVIF encoder[0] wants to use 4:4:4 chroma, but it looks like your hero image is 4:2:0.
What are some alternatives?
dav1d - A read-only mirror of dav1d source code repository. The origin is at https://code.videolan.org/videolan/dav1d/
ffmpeg-build-script - The FFmpeg build script provides an easy way to build a static FFmpeg on OSX and Linux with non-free codecs included.
cavif-rs - AVIF image creator in pure Rust
av1-avif - AV1 Image File Format Specification - ISO-BMFF/HEIF derivative
broot - A new way to see and navigate directory trees : https://dystroy.org/broot
libjxl - JPEG XL image format reference implementation
SVT-AV1
vvenc - Fraunhofer Versatile Video Encoder (VVenC)
qt-avif-image-plugin - Qt plug-in to allow Qt and KDE based applications to read/write AVIF images.
obs-amd-encoder - AMD Advanced Media Framework Encoder Plugin for Open Broadcaster Studio
SVT-AV1 - Welcome to the GitHub repo for the SVT-AV1! This repo is set to read-only for archiving purposes. Please join us at https://gitlab.com/AOMediaCodec/SVT-AV1. We look forward to seeing you there
av-scenechange - Scenechange detection tool