On Friday, February 18, 2022, Andrea paz <gamberucci.andrea@gmail.com> wrote:
In X11, using YUVA8 I find the same playback efficiency of RGBA-Float.
With RGBA8 the playback is similar, but using vaapi it improves a bit
in reverse.
The problematic vp9 video is as follows:
https://www.base-n.de/webm/VP9%20Sample.html
Other vp9 videos work much better.
strange, it does not look particulary big (nor in duration nor in dimensions)...
Rendering
Starting from RGBA8:
1080p/422p/25fps : 27 fps
1440p/422p/25fps : 24 fps
Starting from YUVA8:
1080p/422p/25fps : 21 fps
so, close to realtime on your hardware.....
according to this page nasm OR yasm can be used (for compiling x86 assembly parts), so may be older distros still get full-speed encoder...