[Cin] Suggestion: improve setting for VP9 webm

[Miroslav Rovis]

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
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