[FFmpeg-devel] [PATCH] lavfi: add xbr filter

[arwa arif]

Scale2x and xBR are very different. But they have implemented xBR also in
their source code. Anyways, I found a good link --> "
http://imgur.com/a/XAwx5" for reference pictures. But, the answers are
coming out to be different. Not sure, why this is happening. Maybe, it is
because of different versions.

On Sat, Nov 1, 2014 at 10:02 PM, Michael Niedermayer <michaelni at gmx.at>
wrote:

> On Sat, Nov 01, 2014 at 07:30:32PM +0530, arwa arif wrote:
> > On Sat, Nov 1, 2014 at 4:40 PM, Stefano Sabatini <stefasab at gmail.com>
> wrote:
> >
> > > On date Saturday 2014-11-01 04:27:24 +0530, arwa arif encoded:
> > > [...]
> > > > On Fri, Oct 31, 2014 at 6:31 PM, Stefano Sabatini <
> stefasab at gmail.com>
> > > > From 9b6b1d546247cf61b2f696835fb8a5e782d353ea Mon Sep 17 00:00:00
> 2001
> > > > From: Arwa Arif <arwaarif1994 at gmail.com>
> > > > Date: Thu, 30 Oct 2014 22:06:20 +0530
> > > > Subject: [PATCH] [PATCH]lvafi: add xbr filter
> > >
> > > typo: lvafi
> > >
> > > >
> > > > ---
> > > >  doc/filters.texi         |    5 +
> > > >  libavfilter/Makefile     |    1 +
> > > >  libavfilter/allfilters.c |    1 +
> > > >  libavfilter/vf_xbr.c     |  331
> > > ++++++++++++++++++++++++++++++++++++++++++++++
> > > >  4 files changed, 338 insertions(+)
> > > >  create mode 100644 libavfilter/vf_xbr.c
> > > [...]
> > >
> > > Code looks good to me, apart a few cosmetics nits which I can fix
> > > myself before pushing.
> > >
> > > About Michael's question, is it possible to compare it with the
> > > reference filter?
> > >
> >
> > I compared the output with the code from scale2x "
> > http://scale2x.sourceforge.net/". I have attached the ouput with this
> mail.
> > foobar.png denotes the original image.
> > foobar_ref,png denotes the output from scale2x.
> > foobar_out.png denotes the output from the code written.
>
> the ref and out images look somewhat different
> also, what is the relation between scale2x and xbr ?
>
> http://scale2x.sourceforge.net/index.html
> states that
> "Other interesting effects are HQx and xBR. These effects are a bit slower
> than Scale2x, but surely in the grasp of modern processors. "
>
> This does not sound like scale2x and xbr are the same thing
>
> [...]
>
>
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> Freedom in capitalist society always remains about the same as it was in
> ancient Greek republics: Freedom for slave owners. -- Vladimir Lenin
>
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