vmaf
coreboot
vmaf | coreboot | |
---|---|---|
41 | 92 | |
4,214 | 2,072 | |
1.1% | 1.1% | |
8.8 | 10.0 | |
6 days ago | 6 days ago | |
Python | C | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 only |
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
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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
coreboot
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Chromebooks will get 10 years of automatic updates
Why BIOS (did you mean UEFI?) when it runs the best boot loader, which is Coreboot¹. Many users would love to re-flash their bios/uefi for it, if it’s supported.
1: https://www.coreboot.org/
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C++ is everywhere, but noone really talks about it. What are people's thoughts?
Coreboot is 0.6% C++.
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Laptops with best Linux support (latest gen, battery life, performance)?
NovaCustom ; some models come with Dasharo a coreboot distribution.
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Asus flip c302 last update
You can also use Mr. Chromebox Script to install Coreboot on your chromebook to get a UEFI BIOS on your Chromebook and then you can go an install either a linux distro or even Windows if you want. It's a pretty straightforward process and also reversable if you want to go back to just using ChromeOS.
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A Linux laptop under 1350€
Some models are available with Dasharo a [coreboot]https://www.coreboot.org/) distribution.
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why no haswell_ult_dmi_registers for broadwell? in https://github.com/coreboot/coreboot/blob/master/util/inteltool/pcie.c
why no haswell_ult_dmi_registers for broadwell? in https://github.com/coreboot/coreboot/blob/master/util/inteltool/pcie.c
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Having issues restoring the firmware with u/MrChromebox's utility
use croshfirmware.sh from https://github.com/coreboot/coreboot/tree/master/util/chromeos
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AMD to move to open source firmware in 2026
There may be other protections to restrict SPI flash access for security reasons (so you might not be able to flash your custom firmware in the OS), but worst case you can use a HW flasher (or maybe USB flashback). Still, this doesn't address the elephant in the room - platform initialization code might be open-sourced, but that isn't everything. You'll still need to figure out the board-specific stuff (the Super I/O chip, chipset GPIOs, other peripherals, etc.). Using coreboot as an example, Intel provides the Firmware Support Package blob to handle platform initialization. I think AGESA is somewhat similar to this, though Intel publicly releases the binaries for use in coreboot/etc. Thanks to the FSP, coreboot has support for recent Intel chipsets. However, there is only support for two recent consumer boards: the MSI PRO Z690-A WiFi DDR4 and DDR5.
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what is VCU (Validation Control Unit) mailbox in haswell nri
does anyone know what is https://github.com/coreboot/coreboot/blob/b12caef23bc1b29c2e658f2b728cc4beac1e62b9/src/northbridge/intel/haswell/vcu_mailbox.c
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Need stock ROM for Acer Chromebook CB314 - DROID
Download crosfirmware.sh and run it from command line: bash crosfirmware.sh droid
What are some alternatives?
Av1an - Cross-platform command-line AV1 / VP9 / HEVC / H264 encoding framework with per scene quality encoding
1vyrain - LiveUSB Bootable exploit chain to unlock all features of xx30 ThinkPad machines. WiFi Whitelist, Advanced Menu, Overclocking.
staxrip - 🎞 Video encoding GUI for Windows.
edk2 - EDK II
FFmpeg-Builds
u-boot - "Das U-Boot" Source Tree
FFmpeg-Builds - FFmpeg Builds for yt-dlp
UEFITool - UEFI firmware image viewer and editor
ffmpeg-debug-qp - FFmpeg Debug Script for QP Values
OpenCore-Install-Guide - Repo for the OpenCore Install Guide
ssimulacra2 - SSIMULACRA 2. Perceptual metric.
thinkpad-firmware-patches - Collection of ThinkPad UEFI patches.