[Cin] random console ffmpeg prog

Andrew Randrianasulu randrianasulu at gmail.com
Mon Oct 24 14:07:00 CEST 2022

пт, 21 окт. 2022 г., 21:16 Andrew Randrianasulu <randrianasulu at gmail.com>:

> пт, 21 окт. 2022 г., 21:11 Phyllis Smith <phylsmith2017 at gmail.com>:
>>> and all this because adventurious user 'goat' reported he had better
>>> luck with cin-gg on arm  single-board computer under Wayland/Xwayland -
>>> namely timeline scrolling performance.
>>> --
>> Wow, that is interesting and I really wonder why that would be -- it must
>> be some implementation feature of Wayland ?
little video demo (hopefully yandex links actually watchable with their
integrated player)


(for some reason IceWM recording appear more smooth than it was in reality)

> I think yes? On most modern systems X server uses 3d acceleration via
> glamour module, and 3d part on those singleboard computers tend to use even
> more weird layout for their buffers - so you can't just read texture via
> cpu (memcpy), it must be detiled, sometimes in software ... and wayland
> does some of this via dma-bufs (?) kernel level shared buffer
> implementation .. so it can do things not defined or allowed in Opengl/egl
> or so I gathered from forums ....
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