Linux

58283 readers

887 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 6 years ago

MODERATORS

nooter692@lemmy.ml

AgreeableLandscape@lemmy.ml

MarcellusDrum@lemmy.ml

cypherpunks@lemmy.ml

cyclohexane@lemmy.ml

d3Xt3r@lemmy.nz

133

AOMedia To Release AV2 Video Codec At Year's End (www.phoronix.com)

submitted 3 days ago by rezad@lemmy.world to c/linux@lemmy.ml

34 comments fedilink hide all child comments

"Set for a year-end release, AV2 is not only an upgrade to the widely adopted AV1 but also a foundational piece of AOMedia’s future tech stack.

AV2, a generation leap in open video coding and the answer to the world’s growing streaming demands, delivers significantly better compression performance than AV1. AV2 provides enhanced support for AR/VR applications, split-screen delivery of multiple programs, improved handling of screen content, and an ability to operate over a wider visual quality range. AV2 marks a milestone on the path to an open, innovative future of media experiences."

you are viewing a single comment's thread
view the rest of the comments

[–] WolfLink@sh.itjust.works 1 points 1 day ago

I can try it again, but what I did was compare h265 to SVT-AV1 in ffmpeg, using a couple different clips of different styles (including a video from my phone and some ripped blu-ray movies). I used “constant quality / variable bitrate settings, and ran each file with a variety of settings for both encoders. I judged the videos with a quality comparison tool ffmpeg has, and I also took subjective notes when I could tell the difference.

I found AV1 did better at very low quality (when it was firmly into the region where it was visibly different, AV1 did have better quality per bitrate).

But when trying to produce high-quality clips, AV1 was never able to produce a clip that matched the quality score of h265, even when the bitrate of the AV1 file was higher.