On Mon, 20 Aug 2018 17:13:31 +0100
lejeczek via users <users@lists.fedoraproject.org> wrote:

> I wonder - and for any experts this is probably trivial - and I 
> understand it varies with hardware, but in theory, if hardware 
> capabilities are fully implemented - should HW acceleration(playback) 
> that works on 1080p for h264/vc1, also work for 4K?

Not an expert, but 4k has 4 times as many pixels as 1080p.  That means
the graphics hardware has to do 4 times the work to decode those
pixels.  Sometimes, it will be able to, but I think that sometimes it
won't.  So, I think your conclusion is not always true.
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