2015-08-17, 23:41
(2015-08-17, 15:04)fritsch Wrote: We don't know - how should we know?
10bit won't happen - you can see that in every "data sheet" out there. And the rest is not yet done - e.g. the decoder still fails and everything you get is an empty picture ... we are talking about HEVC_MAIN not anything 10 bit. I personally hope that at least 4k@30p is working. So it is obviously clear that one will need again new hw, when the new livetv 4k@50p HEVC will be the default (~2 years?). HDMI 1.4 limitations are also known ... So whenever I talk about this I talk about rendering at 1080p@something.
The BBC UHD test broadcasts were 2160/50p and 2160/59.94p at around 36Mbs and used 4:2:0 8 bit YCrCb format. I've not come across any 10 bit HEVC 50p/59.94p stuff yet - though I know that higher bit-depth is on the agenda for broadcasters, with or without HDR.
Some interesting speed increases on "10 bit video in 8 bit memory" techniques discussed here : http://www.obe.tv/about-us/obe-blog/item...onversions (Though not relevant to VAAPI 8/10 bit discussions I guess)
