this post was submitted on 18 Feb 2025
59 points (100.0% liked)
Linux
50370 readers
1309 users here now
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Rules
- Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
- No misinformation
- No NSFW content
- No hate speech, bigotry, etc
Related Communities
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
founded 5 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Videos may use different color spaces. So it’s good to tell the composition which colorspace you’re using so you don’t end up losing detail and distorting colors when displaying them.
(I’m also by no means a color expert, might have gotten some details wrong).
Makes sense, I just dont quite get what the compositor does in the case of two videos being played simulatanously both with vastly different profiles (e.g. one mostly red, one mostly blue).
Does the compositor then do correction on a per-window basis, or it just averages across the whole screen. This question is likely outside of the scope of the PR
With color spaces we're talking about standards like sRGB, Rec.2020 and many more. Wikipedia Article
If a video comes with information on the color space it uses, the video player and compositor can now do a more source accurate mapping to your screen than before.
If you also have an ICC profile for your monitor, you'll get the most out of your panel now. Without that, the compositor will assume an sRGB calibration (when not using HDR) and do its best to map a higher definition video to that.