[Cin] Mesa3d va-api encoding MR
Andrew Randrianasulu
randrianasulu at gmail.com
Thu Aug 11 07:08:19 CEST 2022
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.
---
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17994
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