Designed to open. Av1an is a Python library that allows you to easily and efficiently encode videos using various encoders, such as AOM, RAV1E, SVT-AV1, VVC, VTM and more. Copy link Owner. Even though GPUs from Colab Pro are generally faster, there still exist some outliers; for example, Pixel-RNN and LSTM train 9%-24% slower on V100 than on T4. There are charts on this. With all valids combination (less then. --auto-alt-ref=6 can also be used, but this is a --profile=2 thing, so if your HW doesn't support 10-bit HW decoding, it won't work. It doesn't matter what number you plug in as av1an will change it depending on vmaf. Cross-platform command-line AV1 / VP9 / HEVC / H264 / VVC encoding framework with per scene quality encoding. bat. 5. I think they are working on cropping right now. Even at ~90 cpu usage, there is still gains to be made with chunk encoding. av1an/aomenc at VMAF 100 produces good quality for the bitrate but there's still obvious loss of details and quality from the source in my testing. > cargo install av1an Updating crates. You can also try building with cargo build --release --feature ffmpeg_static to statically link ffmpeg. Story Needed an AV1 encoder. AOM is excellent for encoding Anime, but painfully slow even with tools like av1an. So if you are open to creative approaches, NEAV1E and Av1an/qencoder try to intelligently chunk your input file at scene changes and do multiple parallel encodes, one encode per chunk. Settings for standalone aomenc that I use with default aomenc(mostly for chunked encoding in av1an/nmkoder with thread pinning and aomenc-by-gop) at 1080p:--threads=2 --cpu. 25. Av1ans scene detect is stupid fast and the process of chunking itself has basically no overhead. 4. Oct 13, 2022. This will be a quick guide for setting options svt-av1 when using with Av1an. 11 is installed. Av1an does the scene detection okay, counts the number of frames, but as soon as SvtAv1EncApp begins, it fills up my 8GB of RAM, and starts filling up my 6GB of swap. I installed av1an anyway but it seems that scene detection is using only 2 or 3 cores, and only 15fps, which is similar to SVT-AV1's encoding fps. --rc 0. avi -enc svt_av1 -e "-w 1920 -h 818 -fps 24" [PySceneDetect] Output directory set: C:Av1an. GITHUB. mkv to mp4 format (4), av1an encodes successfully. One instance of 1080p 30fps content will need less than 1GB of RAM. However I didn't find any solution either to tell av1an the correct frame count or to fix av1an from counting wrong (if that's a thing). Shutterencoder really doesn't do anything for parallel encoding, so it's horribly slow on a capable system. 0. HDR (PQ and HLG) and in general all SVT-AV1 parameters; I wonder Intel Arc cards "should" have them (or at least most of) I'm also curious about encoding differences (if any) of the various Intel Arc models. 4 secondsBasically Av1an. That's why I use my own GUI for AV1. When "Threads per worked" > 1 and Av1an "Amount of Worker" = 2. 0 since the latest update broke target quality. I then used the program „Handbrake“ to bring it down. raysar. Possibly due to the ffmpeg-next crate not supporting newer ffmpeg builds?Latest Av1an, python, vapoursynth, ffms, lsmash, ffmpeg, rust, aomenc. 2 years ago README. Next, follow the Generate Password Password link at the top of the page. Building av1an and dependencies for windows is a big PITA. Cpu-used 8 is the fastest encoding speed. You can go slower, ideal Time/Performance point should be preset 6 which is a bit slower than x265 slow, but way more efficient. av1an -i file --target-quality 95 --vmaf_path \"vmaf_v. exe back in the game directory. webp -quality 50% output. Bitrate: Auto. 9. Av1an is a command-line tool that can encode videos in AV1, VP9, HEVC and H264 formats using multiple encoder processes in parallel. The lossless encode can be created with ffmpeg -i ToS-4k-1920. It supports various. Use av1an just for the video stream and mux/encode audio separately. 🐦 Av1an Win Script A Windows Batch script that sets up Av1an with all its dependencies for AV1 in a portable workspace. And these are the values of the system variables: PYTHONPATH - C:Programm FilesPython311 PYTHONHOME - C:Programm FilesPython311. Container: mp4. Wrong, aomenc tiles are log2. add this on a new line : 104. dev. If you are new to encoding in AV1 in general, here is a brief rundown of the various encoders: aom-av1 is the “reference” implementation with most of the big bells and whistles of the AV1 standard, SVT-AV1 is the “production-ready” encoder with the best native threading and high non-realtime speed, while rav1e is an AV1. 2k. mp4" -enc rav1e -o "C:\Temp\TEST. av1an -i file --target-quality 90 - Will run aomenc with default settings of target-quality . Sometimes it needs 12 sometimes it needs 63. It solves the problem of inefficient multithreading. From there, I would advise creating /opt/av1an, copying over the built files, and symlinking the binary to your /usr/bin, or your preferred way of placing your binary on your PATH. toml fixes the docker build for me, but unfortunately I don't think that's feasible since the scene detection on the debug profile is unbearably slow, and we wanted to still enable overflow checks to catch errors in CI. Fix NVENC incorrect parameter ( d0538a2) Fix Combining Hardsub and other filters ( bc4131c) Forgot to add the necessary vmaf model in the release, please create a vmaf folder in Apps and add vmaf_v0. --film-grain 10 enables grain synthesis with a strength of 10. The encoders. So with a throttle CPU it took 12 hours for software, 8 hours for intel av1 with the CPU still needing to do filters. avif INFO [av1an_core::settings] Input: 1920x1080 @ 25. 10 as of 1/27/23) VapourSynth64-portable-R61 (latest as of 1/27/23) Av1an. 5 Branches. 4. 4 GB in size which is a bit too much for my personal taste, haha. According to the FFmpeg documentation, the switch cpu-used “Set [s] the quality/encoding speed tradeoff. It's also a PITA to compile, has a long list of bugs, and isn't. Instead of bitrate I would recommend to use constant quality due to different content requiring different bitrates. ProductsIt sounds like the two you want to pick are "size" and "quality", which means software encoding with something like Av1an is your best bet. 09 fps, eta 0s)Queue 1 Workers 1 Passes 2 Params: -. So use the -preset 3 directly to prevent that. 0. Version usage of Av1an. 6 Downloaded clap_derive v3. 10. $ av1an -i 'file. Atemu12 • 1 yr. av1an -i test. Can you provide 1 minute (for test) example of source?Possibly a bug in cargo-chef? Removing the ci profile from Cargo. Handbrake uses ffmpeg, and ffmpeg already supports vvc (just confirmed it myself with ffmpeg -codecs and found . tehCh0nG • 4. The same will be with the hardware encoder. magick convert input. 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. ago. Instead, use --tile-columns=2 --tile-rows=1 for 2² x 2¹ = 8 tiles for 8 threads. 0 ffmpeg-4. av1an can be installed from package managers, cargo. Preset 4 is very slow as you might have seen and it also did not enable film-grain synthesis. . It looks like -v from AV1an includes some AOM options that I cannot find in ffmpeg -h encoder=libaom-av1, such as --cq-level or --end-usage. Try it out with git pull, git checkout 0. macOS is very similar to Linux, although there aren't any GUI tools for AV1 encoding that I can comfortably recommend. Hi, I'm running av1an on Windows 11. Your argument would result in 9x4 = 36 tiles. when using ffmpeg-git with svt-av1-git, it won't build. Given the recent push for Windows on ARM64 for developers, with the release of Project Volterra Windows Dev Kit 2023, one weird missing component was Docker Desktop. After the mp4 encoding, if I change the container format to mkv again (5), av1an can also work fine. zip in d:videosav1 and it. on a 1080p 59. You need the 0. It should be stated that there's no fixed bitrate value that'll be guaranteed transparent. Av1an A cross-platform framework to streamline encoding Easy, Fast, Efficient and Feature Rich An easy way to start using AV1 / HEVC / H264 / VP9 / VP8 encoding. AV1 content creation will become very important, now with RTX 40-series GPUs supporting the new standard. Av1an-1,224 0. This is the same command I use for all encodes, only changing the input/output file. . It can increase your encoding speed and improve cpu utilization by running multiple encoder processes in parallel. Copy and paste the file in the orginal path : C:WindowsSystem32driversetc. 0 Downloaded byte-slice-cast v1. zplosion • 1. . ffmpeg is not av1an. AOM, RAV1E, SVT-AV1, VPX, x265, x264 are supported. Here is a baseline command you can use and customize to achieve what you want :Av1an. Or if you just wanted to encode such video for actual use on a Peertube instance for example. But in the case of high quality video streams such as 4K HDR, the AV1 is clearly far superior to VP9 in terms of quality. So the result is perfect for my use case. As you increase the strength, you increase the strength of the denoiser and how much SVT-AV1 decides to replace the original noise with synthesized noise(IE, if you increase the number, you. Someone else had a different problem with the scene detection which turned out to be that ffmpeg behaved very strangely when piping that particular file, and it was fixed with PR #385 after I had a sample to see what the. Av1an and Vapoursynth are two programs used in tandem to chunk a source/input file. Assets 4. There's also Av1an as suggested by someone else. After 2140 frames were encoded, only 2099 of them left. 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. --tune=ssim uses SSIM, and it works quite well with live-action, and it is a bit slower (it is not really noticeable though). In order to link the library, compile ffmpeg with --enable-libaom (see the compilation guides ). av1an seems to insist that I'm trying to encode yuv422p despite:--pix-format yuv420p-f "format=yuv420p"-v "--color-format 1" Am I missing something? After all 3 of those options, I wouldn't think it'd be trying to encode a yuv422p video. And also visual quality metrics from something like ssimulacra2. If using av1an, you probably want to set --disable-kf to disable scenecut detection (since av1an does scenecut for us), unless you have a special use case where. 10 and 3. 3. nmkoder 5. dll. 1. SVT-AV1 0. You have not understood what Av1an does. Encoder of your choice. It might be worth adding (I can do it easily, if the team's cool with it) to Av1an as an option/alternative to the vs_ffms2 chunking method - essentially vs_lsmash. 6. AV1 supports HDR by allowing to signal that the color values are encoded according to the BT. py -i Sintel_1080p_YUV_RAW. I noticed this because ssim calculation gives a weird number. But in order to change it it first needs to be there. There are charts on this. 10. The website also says that Av1an can do x265 and av1 (along with svt-av1, so that'll make my testing process easier. As you increase the strength, you increase the strength of the denoiser and how much SVT-AV1 decides to replace the original noise with synthesized noise(IE, if you increase the number, you. DCT, (FLIP-)ADST and identity transforms (up to 64x64, 16x16 and 32x32 respectively) 8-, 10- and 12-bit depth color. ffms2 : Found Cross-platform command-line AV1 / VP9 / HEVC / H264. After many attempts believing that I got some input args wrong, I confirm that the latest version av1an. 266 / VVC (Versatile Video Coding) in the output list) And, since it's in ffmpeg, that means that vlc is able to play it already too. To get it working, I downloaded and placed the following in the same folder: Python 3. The --user flag is required on linux to avoid permission issues with the docker container not being able to write to the location, if you get permission issues ensure your user has access to the folder that you are using to encode. NEAV1E 4. The only relevant values are min_q, max_q and VMAF target. SVT-AV1 on preset 8 is nearly as fast as x265 medium and preset 7 is faster than x265 slow while being more efficient. (source: “training” sheet, column B and D)This method results in the smallest amount of time with idle cores, /// as the encode will not be waiting on a very long chunk to finish at the end of the encode after all other chunks have finished. Simply download the exe from the GitHub release page and get the DLL files from the latest ffmpeg shared release. 0) * Target Triple x86_64-unknown-linux-gnu * Date Info Build Date: 2022-12-14 Commit Date: 2022-12-06 * VapourSynth Plugins systems. 0. 48 fps, eta 0s) Queue 2 Workers 1 Passes 1 Params: -. 3. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. Av1an is a cross-platform framework to streamline encoding, providing an easy way to start using AV1 / HEVC / H264 / VP9 / VP8 encoding. Report any bugs you find ( glitching with fade-ins is known already ). 3. aomenc flags for higher quality. Example with default parameters: av1an -i input With your own parameters: Example settings and explanation Constant quality --end-usage=q --cq-level=30 --cpu-used=4 --threads=64 . json to that folder, it should look like this: Appsvmafvmaf_v0. 1X = 100ISO, NX= N*100ISO Since the grain synth guide is still valid, I’ll just copy paste it from my 3rd generation guide: For --denoise-noise-level=XX (crappy name, I know), a higher number dictates a larger amount of noise. package manager install pkg-config libavutil-dev libavformat-dev libavfilter-dev 👍 1 azais-corentin reacted with thumbs up emojiThats where tools like NotEnoughAV1Encodes comes in, which does make encoding easier and faster for AV1 encoders (and recently also libvpx-vp9). dll to avcodec-58. 4. av1an keeps crashing for me whenever I try to use vmaf. The SVT docs are pretty good. pkl" --probes 6 - With specified path to vmaf model and 6 probes per segment Scaling . . Av1an works just fine - for Windows drop (shared-lib, stable) ffmpeg, (portable) vapoursynth, (portable) python and av1an into a directory, add the respecitive encoder exe and Bob's your uncle. All the files are of the exact same size and only differ in the header by 42 bytes. And the compression ratio with aomenc at cpu-used 6 is 10-50% better (depending on the source) than x265 slow preset. Av1an is a command-line tool that can encode videos in AV1, VP9, HEVC and H264 formats using multiple encoder processes in parallel. SVT-AV1 defaults to a GOP of a bit over 1 second, which isn't ideal for most use cases and also results in slower encoding speed, reduced parallelism, and less. Aomenc 10 bit 2 pass encode example. Browse to AOMedia Git index and login with your account (Gmail credentials, for example). 1: Chooses Q between 15 and 35. . Some sources are more complex than others. exe --verbose -i <INPUT> -e rav1e --target-quali. Building av1an and dependencies for windows is a big PITA. 3. Is there any way to provide an alternative build of an encoder library to av1an? For example use a my own build of aom-av1-lavish instead of the stock aomenc. docker pull luigi311/av1an. I personally use the likes of Av1an and set a VMAF target to get the quality I'm after. cd into the folder. Download and compile av1an. mov -c:v libaom-av1 -cpu-used 8 -row-mt true -threads 0 -crf 24 -tile-columns 1 -tile-rows 0 out. 4. 1 AOMEnc version. This is the av1an script I'm using:This method uses ffmpeg's select filter to only output the frames in a given chunk from the source file. --enable-hdr and some metadata should be all you need, unless you want to tonemap. It would be nice to have such a complete . mov -c:v libx264 -crf 0 ToS. hard to say if MeGUI will adopt AV1. 8. About AV1: AV1 is a modern, open, and royalty-free video codec developed by the Alliance for Open Media (AOMedia) that is the successor to VP9 and promises to deliver 30% less bitrates for the same quality compared to H. mp4" -o . The Av1an numbers don't include the scene detection time which here would be around 8s. mp4. For multiplatform and more features check out the CLI Tool Av1an. It supports target quality mode, VMAF plotting, VapourSynth script support, and. 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. Also, 1080p30 streaming with aom is viable! Most people recommend using a parallelized solution to do AV1 encodes, no matter the encoder of choice. It requires a powerful PC to run fast. That and the clunky Java GUI which provides many options, but often not enough. 5 (pip) VapourSynth R53 ffmpeg version 2021-06-02-git-071930de72-essentials (all three binaries) rav1e 0. I'd keep it on at all times for CRF unless you use external scene-detection like with av1an. It doesn't require building from. I’d be interested to see some av1an results thrown in there using rav1e or aomenc. av1 Software enc. Chunk methods introduce image glitches #745 opened Apr 16, 2023 by mxsrm. av1an. av1an/aomenc at VMAF 100 produces good quality for the bitrate but there's still obvious loss of details and quality from the source in my testing. I saw that there were spaces around the parameter in the documentation section for -ff, so I added spaces (-ff " -vf scale=-1:1080 ") and got a similar error: av1an: error: argument --audio_params/-a: expected one argument. AV1 is an open source & royalty-free video codec developed by the Alliance for Open Media (AOMedia), a non-profit industry consortium. Number of video's transcoded: 158 Video contents: self made with mobile phone; received via WhatsApp; captured streams; original digital video Input codec: mainly AVC (122 out of 158 videos) Av1an version: 0. One H9N2 patient is a 10-year-old girl from Hunan province. 2 Downloaded ahash v0. 1. It's as fast as x264 medium on preset 12. mkv -enc svt_av1 -v "--keyint 60 --preset 8 --passes 1" -w 4 around 0. For example -filter:v scale_cuda=-1:720. ago. However, it has worse (alas, non-existing) scene detecition - the experimental /scd param has been disabled for some time, and svt seems to be tuned for segmented encoding with tools like av1an. mp4" -o . A simple guide will be much appreciated 🙏 comments sorted by Best Top New Controversial Q&A Add a Comment [deleted]. --film-grain 10 enables grain synthesis with a strength of 10. with --crf. </td> </tr> <tr> <td>--target-bitrate=arg</td> <td>Bitrate. 5. C:Av1an>av1an. @se17p If av1an crashes with a segfault, it basically means that there is some kind of ABI mismatch for dynamically linked libraries. Works great if you want to add Av1an jobs to your StaxRip workflow. Av1an supports all available open source AV1 encoders (Aomenc, Rav1e, SVT-AV1) and also VPX (VP9, VP8) Core principle is splitting video by scenes and running encoders in parallel. Av1an Options: Change splitting method, chunk creation method, amount of workers, and more; Encodes can be stopped and resumed at any time; Utilities. One of my encodes came out at about 7Mbps for 1080p and it was nearly indistinguishable from. mp4 Scene detection 00:00:01 [#####] 100% 375/375 (255. For whatever reason, the build of ffmpeg that I have (shipped with Ubuntu 20. 04) can't mux av1 files correctly, so av1an can't merge the streams from different threads together. I'm using Windows 10 and am having trouble getting it to. I am currently in the process of migrating over to all static builds for it but running into issues with x265 not building statically when including 8/10/12 bit support so i will skip that for now just to get the fix up and then get that building statically later once i get a solution from the x265 bug tracker. In my previous post I looked at video encoding using svt-av1 with crf & preset settings and using VMAF to rate the resultant quality. When I run. tl;dr: aom and SVT-AV1 achieve similar efficiency vs. Av1an also is feature rich: dynamic progress bar, resuming, dark. 6. by Turbulent-Bend-7416 How to compile Av1an on Windows without breaking your eggs Guide to compiling Av1an on Windows . From what I understand, av1an calculates VMAF per scene and has to encode a scene & calculate the VMAF with multiple CRF values (when it doesn't get lucky) to find the optimal one for each scene. 1. org. Yesterday the World Health Organization (WHO) confirmed three new H9N2 avian flu cases in China, all involving children living in or with connections to Hunan province. Source is 1440p 60fps. It can increase your encoding speed and improve cpu utilization by running multiple encoder processes in parallel. Av1an Changes the value of cq-level for target quality. svt-av1 RAM usage goes to infinity. The SVT-VP9 performance is much better than libvpx's vpxenc for CPU-based VP9 video encoding. After converting, the size is almost the same so it is a little bit meaningless. i've found out after doing some testing that pipes don't stall if I set the maximum scene length to a fairly small number of frames. i FINALLY got around to. Also, the cost of maintaining the original files isn't really much compared to the undertaking of transcoding. release] section change lto = "thin" to lto = "fat" , i. Short URLs. Docker Pull Command. The GOP size was not adjusted to 16 for AV1. exe in the same folder as av1an. Av1an running as a daemon with a client sending it new videos to chew through could be pretty pog. libsvtav1 with ffmpeg. Press Ctrl+S and close the file. You can try it by yourself. You can try that though by testing it. 0-270-g42a875ffe. Edit: Unless the problem was that the files were encoded in the same directory? av1an only created 1 hidden temporary directory, even when I ran both 8 bit and 10 bit in. Features. According to Phoronix, Google has released a new AOM-AV1 update - version 3. Makes encoding AV1 basically as fast as x265, maybe faster. You can also try LZMA2 (7z) on those Webp files then. Examples: Avif example. Presets now range from 0 to 13, with the default being 12 (edit: preset 13 seems to be mostly for debugging purposes). It can increase your encoding speed and improve cpu utilization by running multiple encoder processes in parallel. We went from 4 frame subsampling to no frame subsampling. Encodes @ 2. 7 fps. So I created one and pasted the module there. encode time results in the context of multithreaded encoding. /av1an. Describe the solution you'd like the ability to give the command i wish to have used and have TDarr call apon av1an for the encoding. And then there’s VapourSynthjust tested it again with av1an compiled to the latest commit, this bug still occurs as I described it back in january, albeit without the "Specify stream dimensions " message coming up at all. I've seen av1an cause some problems with metadata when merging the chunks back together. Roedrik. To associate your repository with the av1 topic, visit your repo's landing page and select "manage topics. Av1an is a video encoding framework. AOM,. There's also Av1an as suggested by someone else. Grabbed 4K sample videos from th. Av1an. You don't need Python or anything else, Av1an is pure Rust. The text was updated successfully, but these errors were encountered:Photon , Poisson noise Samuel W. This method needs to decode all frames that occur before a chunk, so for chunks near the end of a long source, this takes a long time. The basic syntax is: ffmpeg -i input. 1 with the current command and 1 with the preset out of -svtav1-params. What value it has is irrelevant. Thanks for explaining this. There's also Av1an as suggested by someone else. You can also use rav1e or SVT-AV1 but it will provide lower quality at same bitrate. rav1e - The fastest and safest AV1 encoder. Intel's. Mining AVN - How to Mine Avian - Tutorial - GPU & CPU Mining - 2021 today i am showing. 0 release once it is out. av1an 0. Setup the perfect encode for your video and add it to a queue. Target quality, VMAF plotting, and more, available to take advantage for video encoding. yaml file doesn't have settings for target quality, but could be adjusted, if you use av1an 0. Yeah, Av1an or another tool like that would be good for this situation. If counting the frames, ffmpeg will show:Hey everyone, i am back with a new tutorial/review for you all today. 98). You should manually set the GOP size to up to 10 seconds using the -g option, so for example -g 300 for a 30 fps video. Windows GUI for encoding and analysis. This filter will perform the rescaling on the GPU. Av1an is a video encoding framework. Please bring up any mistakes or corrections. opensubtitles. If you are on arch, simply install the vapoursynth-plugin-lsmashsource package. 5 fps 100%cpu :/ I'm always using x265 10bit on handbrake or ffmpeg, preset fast and slow, speed and quality is amazing. The other downside beside converting speed was CPU usage ~160% of two cores libsvtav1 were reaching something around 190%. 9. Here is how normal encoding works: Input - > Decode - > Filter (optional) -> encoding -> Output. It is recommended to set it the rate control --end-usage=q to get the highest quality rate control method possible. It. If any videos are in the queue, qencoder will encode them. OS: Windows 10 Installed Software: av1an 6. Paramets: Auto. Av1an. mp4 -c:v libaom-av1 -strict -2 output. avif. Because Av1an won't build on my Ubuntu 20. \in. Av1an does not calculate tiles if custom command is passed to encoder. 2. AV1 decode is supported by a wide variety of hardware including current generation Nvidia and AMD GPUs (but not the RX 6500 XT ). Make sure that vapoursynth and ffmpeg are both correctly installed and up to date. Badge Tags. 1kbits/s speed=16. muravieri. The default value is 1, which will be slow and high quality. It can increase your encoding speed and improve cpu utilization by running multiple encoder processes in parallel. It doesn't require building from source or modifying any path variables. mkv' [matroska,webm @ 0x55892a3fc500] Could not find codec parameters for stream 5 (Subtitle: hdmv_pgs_subtitle (pgssub)): unspecified size Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options [matroska,webm @. 9. 04. A tool to make encoding faster and easier for AV1 encoders. Onboard AI learns any GitHub repo in minutes and lets you chat with it to locate functionality, understand. ProductsHowever Av1an's default settings are also not that great. 8. Which are the best open-source svt-av1 projects? This list will help you: Av1an, FastFlix, NotEnoughAV1Encodes, NotEnoughAV1Encodes-Qt, and Av1ador. Intra, inter, and switch frames. I dont remembered, because I only use this for test. #768 opened on Jun 21 by dvc94ch. It just needs to be there so that the value can be replaced. There are also other AV1 capable programs like StaxRip, Hybrid, FastFlix, etc BUT they lack the splitting method used by av1an, qencoder and neav1e, which means that they are. ; text_features: a list of features for the Text filter. Code Issues Pull requests Cross-platform command-line AV1 / VP9 / HEVC / H264 encoding framework with per scene quality encoding. My cpu is an i5 6200U (2 cores with HT), Av1an decided to create 2 workers (and this is wrong, in fact the cpu monitor showed the load almost only on two "cpus"). tl;dr: aom and SVT-AV1 achieve similar efficiency vs. 3. I'm surprised nobody mentioned Av1an yet. I made a simple python based gui for windows users who are interested in av1an, post is on the discord.