Linux - vaapi-sse4: Deinterlacing Testing

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robo989 Offline
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Post: #796
Thank you fritsch Smile
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robo989 Offline
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Post: #797
Sorted, sorry
(This post was last modified: 2014-07-27 22:22 by robo989.)
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ozra Offline
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Post: #798
Hi All,

Thanks to fritsch and everybody for their hard work.

Big thanks to this thread and ppa:wsnipex/xbmc-fernetmenta-master for improving my PVR experience on Intel NUC D54250WYK
Did not realize how poor the deinterlacing was until after I bought it. Fortunately I found this thread!!.

Using TVHeadend for PVR. vaapi-sse4 for deinterlacing SD of PVR.
Currently I am running xbmc-fernetmenta-master from 30 Jun 2014 or 09 Jul 2014.


They seem to work OK but occasionally there are glitches.... to be expected with Alpha software.

My Question:

Which is the best build to run that incorporates the vaapi-sse4 changes for my PVR usage but does NOT use Helix requirements for the PVR menus yet?
I am running Aeon-Nox skin and with any build past 9 Jul 2014 of xbmc-fernetmenta-master, PVR menus are missing as they need to be in Helix format not Gotham.

Ideally.... I would like Gotham but with vaapi-sse4 changes for my PVR deinterlacing.

Any suggestions?

Thank You
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-DDD- Offline
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Post: #799
What about openelec?

| myHTPC |
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ozra Offline
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Post: #800
(2014-07-29 06:16)-DDD- Wrote:  What about openelec?

Thanks for the suggestion. I find the lack of fstab etc and not being able to build eg: tvheadend clients from git etc on openelec quite constrictive.
Including running my backup scripts for nightly thumbnail cleanup and thumbnail preloading/populating etc and backing up to my nas.
Things I do as standard from Ubuntu.

How far away is Openelec from Standard Ubuntu?
Am reading up on it now....
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noggin Offline
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Post: #801
(2014-07-27 20:23)FernetMenta Wrote:  What exactly do I have to look for. Both samples play fine and I can't tell any difference. Tried on i5-4570T Linux, sw multi-threaded decoding and on i7 Windows.
The i5 is approximately at 50% CPU playing the 4:2:2 sample with yadif.

Look at the motion of fast moving elements with high-saturation chroma and relatively low luminance - the blue light beams on the wide shots, the foreground audience in the fast tracking shots etc.

The 4:2:0 clip has full 50Hz motion on these elements, the 4:2:2 clip appears to have some odd 25Hz motion artefacts on them, yet other areas of the picture are fine with 50Hz motion (i.e. it isn't a case that the sequence isn't being de-interlaced).

I'm wondering if there is some difference in the way 4:2:2 and 4:2:0 is handled, particularly in chroma terms? It's really odd. I'm running an i7-2600K with Intel drivers.
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FernetMenta Offline
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Post: #802
Could you be more specific on what to look at? Time, region of the screen for example.

Quote:I'm wondering if there is some difference in the way 4:2:2 and 4:2:0 is handled

I can't find anything in the code which would point in this direction. The only difference between 4:2:2 and 4:2.0 is that 4:2:2 has twice as much chroma samples.
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noggin Offline
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Post: #803
(2014-07-29 12:59)FernetMenta Wrote:  Could you be more specific on what to look at? Time, region of the screen for example.

Quote:I'm wondering if there is some difference in the way 4:2:2 and 4:2:0 is handled

I can't find anything in the code which would point in this direction. The only difference between 4:2:2 and 4:2.0 is that 4:2:2 has twice as much chroma samples.

Will try and post times and screen grabs. Not near PC at the moment - probably later this evening.
(This post was last modified: 2014-07-29 13:39 by noggin.)
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noggin Offline
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Post: #804
Have sent PM with links to screen caps and timings.

Checked on two Intel machines. i7-2600K running Ubuntu and the fernetmenta build (temporarily compiled with YADIF not W3FDIF!) and an i5-4250U NUC running OpenElec 4.0.6
(This post was last modified: 2014-07-29 20:29 by noggin.)
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