Av1an
vapoursynth
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Av1an | vapoursynth | |
---|---|---|
65 | 10 | |
1,338 | 1,521 | |
- | 1.8% | |
7.3 | 9.1 | |
13 days ago | 7 days ago | |
Rust | C++ | |
GNU General Public License v3.0 only | GNU Lesser General Public License v3.0 only |
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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.
Av1an
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Guide to Adopting AV1 Encoding
The hardware encoders are very fast and generally better than x264 (but not by as much as you'd think with the x264 slow preset).
In addition, there are threaded AV1 encoders you may be overlooking, like SVT-AV1. For non-realtime, my favorite is av1an, which also yields better quality than is possible from aomenc: https://github.com/master-of-zen/Av1an
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I have a feeling crunchyroll should be using AV1
I specifically used https://github.com/master-of-zen/Av1an with --target-quality 100 to keep the compression as close to lossless as possible (you could probably shave even more size off if you didn’t use near-lossless compression)
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Automatic choose encode settings?
There's also Av1an as suggested by someone else. It's going to produce more efficient encodes because it uses chunk-based encoding to reach the required VMAF for every single chunk, but this is also slower because every chunk will be re-encoded until the VMAF target is reached. It's also a PITA to compile, has a long list of bugs, and isn't very actively developed. One of the long-standing issues is that frames have a tendency to go missing during splitting, which IME is going to keep happening when the input files aren't standardized. And thus the recommendation is to transcode the input to lossless first, which is just completely unsustainable.
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Building pc for ffmpeg rendering
i'm still trying to figure out if av1an is the breakthrough to using large CPU counts without losing quality. but it's a ridiculously poorly documented program. i haven't gotten it to run effectively yet. https://github.com/master-of-zen/Av1an
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Codecs for the 4K Era: HEVC, AV1, VVC and Beyond
I don't know about VVC, but I've never seen a recommendation of preset 0 for SVT-AV1. The docs say "presets 1-3 represent extremely high efficiency, for use when encode time is not important and quality/size of the resulting video file is critical". It seems like 0 is the equivalent placebo preset. But if you want AV1 with coding efficiency over all else, IIRC the typical approach is to use av1an to detect scene transitions and farm out parallel encodes with aomenc.
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Automating av1 encoding?
That might be because it doesn't work.
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VMAF is confusing me
Have you seen Av1an? It's supposed to encode to a target VMAF.
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Trying to use av1an without success
Are you using the current version, 0.4.0, from https://github.com/master-of-zen/Av1an/releases
- Av1an - Cross-platform command-line AV1 encoding framework written in Rust
- Av1an: Cross-platform command-line AV1 encoding framework written in Rust
vapoursynth
- FLaNK 15 Jan 2024
- FFmpeg is getting better with multithreaded transcoding pipelines
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Ffmprovisr – Making FFmpeg Easier
Since ffmpeg CLI still makes me pull ny hair out, I am going to plug vapoursynth:
Its Pythonic video filters... But also so much more: https://vsdb.top/
And Staxrip, which makes such good use of ffmpeg, vapoursynth, and dozens of other encoders and tools that I reboot from linux to Windows just to use it: https://github.com/staxrip/staxrip
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[Guide] Installing av1an on Ubuntu 22.04
git clone https://github.com/vapoursynth/vapoursynth cd vapoursynth ./configure make sudo make install
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Im making a video editor in Python. Yes, i'm crazy. No, it wont lag
Are you aware of Vapoursynth? https://www.vapoursynth.com/
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Fast Real Time JavaScript Video Manipulation / Postprocessing
I have a few options here to process the individual frames for example using ImageData, which exposes the data as an array of pixels, so you could easily 'borrow' some VapourSynth filters for this:
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AV1 encoder for Linux
Does the name AviSynth mean anything to you? If so and you want a similar Linux native tool "inspired" by AviSynth, to quote the website, check out http://www.vapoursynth.com/ Just bear in mind that the scripting language is different.
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NVIDIA Optical Flow CUDA interface: CUarray vs CUdeviceptr
I'm a total newbie to CUDA. I'm trying to implement NVOF in VapourSynth video processing framework. I got the NVOF context initialized. Next step is the buffers!
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How to compile Av1an on Windows without breaking your eggs
Download vapoursynth r57 portable from https://github.com/vapoursynth/vapoursynth/releases it's a 7z file so you should have 7-zip installed
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[Guild] How to compile Av1an on Ubuntu 21.04
Download and compile vapoursynth 1) Go to vapoursynth’s gihub (https://github.com/vapoursynth/vapoursynth/releases) download/wget the tar.gz 2) extract it with tar -xf 3) cd into the folder 4) sudo ./autogen.sh 5) sudo ./configure 6) sudo make install
What are some alternatives?
HandBrake - HandBrake's main development repository
moviepy - Video editing with Python
SVT-AV1
ffmpeg-python - Python bindings for FFmpeg - with complex filtering support
FastFlix - FastFlix is a free GUI for HEVC and AV1 encoding, GIF/WebP/AVIF creation, and more!
staxrip - 🎞 Video encoding GUI for Windows.
NotEnoughAV1Encodes - GUI for AV1 (aomenc, rav1e & svt-av1)
vidcutter - A modern yet simple multi-platform video cutter and joiner.
FFmpeg-Builds
FFMPerative - Chat to Compose Video
ab-av1 - AV1 re-encoding using ffmpeg, svt-av1 & vmaf.
FFmpeg - Mirror of https://git.ffmpeg.org/ffmpeg.git