Linux VAAPI: Nuc, Chromebox, HSW, IVB, Baytrail with Ubuntu 14.04
(2015-06-30, 10:29)noggin Wrote: I realise I'm one of the few people who watch 4:2:2 rather than 4:2:0 content regularly, but it would be great to see it in full resolution (and without the odd deinterlacing issues that appear to hit saturated content)

Given what fritsch says WRT the driver not supporting 4:2:2 I assume the deint chroma issue is because kodi/whatever is converting to 4:2:0 assuming progressive chroma - in theory as long as your 4:2:2 is flagged as interlaced it should be possible to convert properly. I don't know if kodi does the conversion or if it uses ffmpeg. If it's the latter then there is a flag to do interlaced chroma.

Ironic that intel doesn't do 4:2:2 as on bay trail at least, the deinterlacer needs 422, so it's doing another (interlace chroma siting aware) 420 -> 422 just after s/w 422 -> 420 - though I guess it does expect 420 "normally" from the h/w dec.


Messages In This Thread
EDID / HDMI Handshake workaround - by Ney - 2014-10-29, 13:58
Thank you! - by Sta11ion - 2015-01-02, 01:51
RE: VAAPI: Nuc, Chromebox, HSW, IVB, Baytrail with Ubuntu 14.04 - by AndyFurniss - 2015-06-30, 21:25
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