[Libva] Will the intel-driver VPP support motion-adaptive deinterlacing on SNB/IVB?

Ratin ratin3 at gmail.com
Sat Aug 31 07:05:37 PDT 2013


I could say the same about up-scaling , last I checked, the backend driver
didn't support bi-cubic interpolation during resizing a resolution from
smaller to larger, the image quality is not good. This would be the only
reason why I am holding up changing our HW decoder from Nvidia to Intel..


On Fri, Aug 30, 2013 at 3:43 AM, Simon Farnsworth <
simon.farnsworth at onelan.co.uk> wrote:

> **
>
> Hello,
>
>
>
> We're attempting to use VA-API on Intel Gen 6 and Gen 7 hardware to
> replace software decoders, and we're hitting quality issues with the VPP
> deinterlacing support. Our CPUs range from Celeron 847 (low-end SNB) to
> Core i3-3220 (mid-range IVB).
>
>
>
> Specifically, it appears to only support bob deinterlacing, which on the
> common "ticker tape" horizontal scrolling text used on news channels looks
> awful (you can see the alternating fields bob up and down.
>
>
>
> The description of the deinterlace algorithm in the public SNB
> documentation, volume 4 part 1 section 2.8, suggests that the hardware is
> capable of motion adaptive deinterlacing to get better results. Will this
> be enabled in the intel driver at some point?
>
> --
>
> Simon Farnsworth
>
> Software Engineer
>
> ONELAN Ltd
>
> http://www.onelan.com
>
>
>
> _______________________________________________
> Libva mailing list
> Libva at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/libva
>
>
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