[Cin] Mesa3d va-api encoding MR
randrianasulu at gmail.com
Tue Sep 27 11:58:29 CEST 2022
new MR concerning vaapi encoding in qemu-based virtual machines (required
чт, 11 авг. 2022 г., 08:08 Andrew Randrianasulu <randrianasulu at gmail.com>:
> So, few hours ago this merge request for mesa3d surfaced (I think it
> affects radeonsi AMD cards)
> why: to enhance va video encoding quality
> how: use va encoding quality_level interface, and provide
> default value and encoding quality adjustment options,
> so that users can finetune encoding quality and performance
> from va quality interface.
> There are 3 settings added:
> -- preset modes: speed, balance, quality
> they are using different encoding strategies
> -- vbaq modes: vbaq mode is using variance based strategy
> to improve the subjective image quality
> -- pre-encoding modes:
> Using scaled down input image for pre-encoding to have
> better rate-control reaction and consume more memory
> in the same time. Only preencoding-4x mode is enabled.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Cin