codexffmpeg
Av1an
codexffmpeg | Av1an | |
---|---|---|
16 | 65 | |
1,208 | 1,356 | |
- | - | |
0.0 | 7.5 | |
5 days ago | 14 days ago | |
Rust | ||
- | GNU General Public License v3.0 only |
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codexffmpeg
- ffmpeg legacy install for win7
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yt playlist of all dgsbe songs not on Spotify
if your gonna use stacher you need to have the ffmpeg files to get mp3 downloads working
- Spectrogram visualization for the whole file?
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Windows command line github fetch/clone with assets latest release
If I visit for eg https://github.com/GyanD/codexffmpeg/releases/tag/6.0 I see the assets. I can also go to https://github.com/GyanD/codexffmpeg/releases/latest and it redirects to the first one. I want to download the assets.
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Should I pick up this beauty?
Place the latest ffmpeg.exe in the same folder. Make sure to grab the archive that ends with "-full_build.7z" or "-full_build.zip". The ffmpeg.exe is in the "bin" folder in the archive. This tool combines whatever came back from youtube back into a proper video file.
- Loop script to convert MP4 and MKV videos to HEVC using CUDA GeForce hardware acceleration
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looking to trim around 40 5-10 seconds clips from a 2 hour video, what is the best way?
It's a command line program so After you download and extract it, you have to open a command prompt where ffmpeg is extracted in the "bin" folder to make it slightly easier you can put your videos in the bin folder as well https://github.com/GyanD/codexffmpeg/releases/download/5.1.2/ffmpeg-5.1.2-essentials_build.zip
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Can't download thumbnails?
Download the latest binaries from the FFMPEG home page (https://github.com/GyanD/codexffmpeg/releases/tag/2021-02-07-git-a52b9464e4)
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Currently impossible to use av1an on Windows?
GyanD's https://github.com/GyanD/codexffmpeg/releases/tag/4.4.1 do include the shared builds?
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How to automate updating ffmpeg?
if fails https://github.com/GyanD/codexffmpeg/releases/
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
What are some alternatives?
yt-dlp - A feature-rich command-line audio/video downloader
HandBrake - HandBrake's main development repository
dbi - Author is duckbill
SVT-AV1
FastFlix - FastFlix is a free GUI for HEVC and AV1 encoding, GIF/WebP/AVIF creation, and more!
NotEnoughAV1Encodes - GUI for AV1 (aomenc, rav1e & svt-av1)
FFmpeg-Builds
ab-av1 - AV1 re-encoding using ffmpeg, svt-av1 & vmaf.
nmkoder - Media encoding, muxing, analysis toolkit for Windows
vmaf - Perceptual video quality assessment based on multi-method fusion.
FFmpeg-Builds - FFmpeg Builds for yt-dlp
digital_video_introduction - A hands-on introduction to video technology: image, video, codec (av1, vp9, h265) and more (ffmpeg encoding). Translations: 🇺🇸 🇨🇳 🇯🇵 🇮🇹 🇰🇷 🇷🇺 🇧🇷 🇪🇸