On Friday, February 18, 2022, Andrea paz <[email protected]> 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..... https://www.linuxfromscratch.org/blfs/view/svn/multimedia/libvpx.html 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...