On 220925-15:28+0200, Andrea paz via Cin wrote:
I compared the old preset (1920*1080; 24-25-30fps) with the new one you proposed. I've Ryzen 3700X and 32 GB RAM.
Old preset:
** rendered 1043 frames in 50.496 secs, 20.655 fps, size 6.6 MiB (CPU 20 - 23%)
New preset with b=0 and row-mt=1:
** rendered 1043 frames in 64.259 secs, 16.231 fps, size 19.4 (CPU 50 - 70%)
The difference in fps, despite the increased CPU usage, I think is explained by the higher quality achieved with your preset. The "threads=..." option should be used in conjunction with "token-parts=3," but I don't see much difference in results. The option "tile-columns=..." should be used in conjunction with "frame-parallel=1," but again I don't notice any difference...
In my tests I find no difference using "Use HW device" in "none"; "vaapi" or "vdpau", I think it would take special presets.
In general I find VP9 slow, heavy and not efficient on my CinGG (I have not tried ffmpeg from command line due to lack of time). --
Interesting. It didn't look so to me, but I may have missed some points in my understanding. If I find time, how can your tests be reproduced? Regards! -- Miroslav Rovis Zagreb, Croatia https://www.CroatiaFidelis.hr my PGP-key: https://www.croatiafidelis.hr/FCF13245ED247DCE443855B7EA9884884FBAF0AE.asc