Sunxi NV12 detiling
giulio.benetti at benettiengineering.com
Fri Dec 17 12:31:05 UTC 2021
Hello Nicolas, All,
I'm dealing with Cedrus on Linux 5.15.7 with Gstreamer 220.127.116.11-git(the
latest main branch) and I've got to the point that on A13 and A20 I have
to detile the output of Sunxi video-engine, since now it's done in
software and this causes:
Dropping frame due to QoS.
using kmssink. And I get an entire frame every 5 seconds.
I've found this  IRC discussion where you state that kmssink support
is missing for GST_VIDEO_FORMAT_NV12_32L32. Basically what I understand
is that we need a special treatment for A13 and A20, since from >= A33
we have the support for the untiled output(still not tried, but I have
to do it with A64).
Where can I begin from to implement the kmssink support for detiling?
There is something I can imitate?
Can you or someone else point me more or less where to start working?
Thanks in advance
Benetti Engineering sas
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