[FFmpeg-devel] [RFC] avfilter/yadif: Check more fields for the spatial/temporal decission

Sal Kennedy mugfunky at gmail.com
Fri Sep 20 04:13:26 CEST 2013

>so noone cares about deinterlacing ?

i'm just about to attempt to apply this and try it out.  i'm a bit noob
with anything but "git pull make install", but i'm very much interested in
this change.

i definitely care about deinterlacing - even though most people would
rather it never existed, i have to deal with it all the time (i'm thinking
specifically of HD->SD downrezzing here) and interlace must be dealt with.

more motion-checking is essential for HD downrezzing as the detail (esp on
motion graphics) is just so much higher than SD world, and current yadif
gets thrown off a little.

i'll post back with my thoughts, but so long as there's no extra false
negatives with this approach, i think it'll be a great change.

On Fri, Sep 20, 2013 at 8:21 AM, compn <tempn at twmi.rr.com> wrote:

> On Thu, 19 Sep 2013 23:43:51 +0200, Michael Niedermayer wrote:
> >On Thu, Sep 05, 2013 at 09:01:05PM +0200, Michael Niedermayer wrote:
> >> Hi
> >>
> >> this patch uses 2 additional fields to check if things are unchanging
> before
> >> applying temporal deinterlacing, This reduces artifacts in the sample i
> tested
> >>
> >> The X86 code is not updated yet because i first like to get some
> feedback on
> >> this
> >> That is does it look better ? worse ? do people consider an extra frame
> delay
> >> a problem? Also if you want to test this, please make sure you do proper
> >> blind tests so you dont know which is which before you decide which
> looks
> >> better
> >
> >so noone cares about deinterlacing ?
> >
> >its a simple question, Does A look better than B, does B look better
> >than A does they look equally good/bad ?
> post it on doom9 , they love filters and deinterlacing over there.
> this is a user question, and you're on the dev list. :)
> a lot of people are very interested in (and use) your yadif filter.
> they just all dont follow ffmpeg-devel.
> maybe post it on your blog too! or the news page!
> you know how many subscribers are on this list vs how many hits the
> news page gets.
> -compn
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