Re: AV1 versus h264

On Sat, 25 May 2024 02:56:08 -0700, anim8rfsk <anim8rfsk@cox.net>
wrote:

Adam H. Kerman <ahk@chinet.com> wrote:

I downloaded two different versions of a 25 minute video. Both 1080p.
The AV1 version is 471.6 MB and the h264 version is 949.4 MB. I can't
see any difference in picture quality.
 
Should I notice a difference?

>
Not necessarily. Some people are lousy at compression.

Well, AV1 is supposedly better tuned for compression taking into
account the limitations of the human eye. Though H.264 is a much older
compression method. H.265 would be a better comparison to AV1. I can't
recall which but one is faster at decompressing but a bit slower at
compressing. A H.265 version of the same video would likely end
between the AV1 and H.264 size with the same picture quality.