vmaf
Perceptual video quality assessment based on multi-method fusion. (by Netflix)
FastFlix
FastFlix is a free GUI for HEVC and AV1 encoding, GIF/WebP/AVIF creation, and more! (by cdgriffith)
| vmaf | FastFlix | |
|---|---|---|
| 41 | 34 | |
| 4,214 | 1,046 | |
| 1.1% | - | |
| 8.8 | 2.9 | |
| 7 days ago | 15 days ago | |
| Python | Python | |
| GNU General Public License v3.0 or later | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.
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.
vmaf
Posts with mentions or reviews of vmaf.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-02-19.
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Extreme Video Compression
Netflix did VMAF for this: https://github.com/Netflix/vmaf
It checks a reference video against an encoded video and returns a score representing how close the encoded video appears to the original from a human perspective.
- Netflix/VMAF – Release v3.0.0
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Linux GUI/Frontend for VMAF
Not sure this is the right sub but I'm going to encode my entire BluRay collection in AV1 / NVEC. I'd like to optimize settings with VMAF but would like an ubuntu/debian based GUI to work with.
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Does anybody run libvmaf on your output as a validation check?
VMAF for anybody that doesn't know quantifies the quality difference between a source and modified video.
- How do you guys visually compare clips?
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reduce video filesize
Netflix even has a method to measure perceivable quality difference. A little while ago I used this tool to calculate this.
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How did my silly little After Effects filter reduce the file to 10% its size? The footage wasn't raw or 10-bit or anything, and I rendered it out at basically the same resolution (cropping aside). How did I do this????
Well you can use something like https://mediaarea.net/en/MediaInfo to look at the files and https://github.com/Netflix/vmaf to see if there is no loss.
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[HUB] Reddit Users Expose Steve: DLSS vs. FSR Performance, GeForce RTX 4070 Ti vs. Radeon RX 7900 XT
Vmaf exists
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4:2:0 10-bit HEVC vs 4:2:2 10-bit AVC codecs higher quality? (S5II, GH6)
You can try some tests https://github.com/Netflix/vmaf
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Unusually good compression ratio - Sanity Check
You can try VMAF as well (which ffmpeg supports). It's normally recommended to make a lossless copy first as a baseline too
FastFlix
Posts with mentions or reviews of FastFlix.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-12-07.
- Linux GUI/Frontend for VMAF
- Fastflix is detected as Trojan since today
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GPU encoding settings
Oh, I've used QSVEnc by Rigaya for fastflix. That's good that Rigaya had done that then.
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Optimising Handbrake for NVENC
Yeah I’ll for sure check out fastflix I think they have Nvidia AV1 although you need to add this to the settings so it can be used. Though I don’t know enough about the dual Nvenc encoders unfortunately. Though it’s worth a try to use.
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4K discs that used to rip but now consistently give errors
I've been ripping my 4K movies again (to transcode them again using FastFlix, which I heard actually supports 10-bit HDR, unlike HandBrake), and I've noticed MakeMKV failed to rip a few of my 4K discs at some point, even though I had tried to clean the bottom of the disc several times. "2001: A Space Odyssey", "Back to the Future Part 3", and "Star Trek: The Motion Picture Director's Edition" started to rip but then failed. With Back to the Future 3, I remember MakeMKV saying it was a hash check failure or something similar (it was enough to make MakeMKV stop ripping it and fail).
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[Question] What software would you recommend to batch convert MP4 videos to AVIF-sequence files?
If you have something reproducible and know it's an issues with FastFlix would love an issue on github https://github.com/cdgriffith/FastFlix/issues !
- GPU accelerated encoding in shutter encoder really really bad.
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Can anyone point us at a windows x64 ffmpeg build with av1_qsv support working?
For GUI (shameless self plug) FastFlix wraps around it to make life easier https://github.com/cdgriffith/FastFlix
- HDR10, HDR10+, Dolby Vision with AV1?
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Few AV1 questions
Well i have to recommend FastFlix as I literally coded it lol. It wraps around ffmpeg as well as Rigaya's hardware encoders (have to download and link them in settings panel).
What are some alternatives?
When comparing vmaf and FastFlix you can also consider the following projects:
Av1an - Cross-platform command-line AV1 / VP9 / HEVC / H264 encoding framework with per scene quality encoding
staxrip - 🎞 Video encoding GUI for Windows.
FFmpeg-Builds
VCEEnc - VCEによる高速エンコードの性能実験
FFmpeg-Builds - FFmpeg Builds for yt-dlp
nmkoder - Media encoding, muxing, analysis toolkit for Windows
ffmpeg-debug-qp - FFmpeg Debug Script for QP Values
video-quality-metrics - Test specified presets/CRF values for the x264 or x265 encoder. Compares VMAF/SSIM/PSNR numerically & via graphs.
ssimulacra2 - SSIMULACRA 2. Perceptual metric.
tricycle - Video transcoding... easier than riding a bike.