[FFmpeg-devel] [PATCH] video stabilization plugins using vid.stab library

João Bernardo jbvsmo at gmail.com
Sun Apr 14 23:13:10 CEST 2013


If I may,
there's a discussion at https://ffmpeg.org/trac/ffmpeg/ticket/1430 about
the deshake filter that cannot compete with the one provided on
Youtube<http://googleresearch.blogspot.in/2012/05/video-stabilization-on-youtube.html>
.

If the results of vid.stab are superior from what we have, why can't it be
included directly on FFmpeg?

João Bernardo


2013/4/14 compn <tempn at twmi.rr.com>

> On Sun, 14 Apr 2013 22:06:36 +0200, Clément Bœsch wrote:
> >On Sun, Apr 14, 2013 at 09:58:20PM +0200, Georg Martius wrote:
> >> Hi,
> >>
> >> On Sunday 14 April 2013 13:00:54 Clément Bœsch wrote:
> >> [...]
> >> >
> >> > Your patch was not rebased on the master since a long time, so we
> can't
> >> > apply it. Additionally, some recent changes in libavfilter will
> require
> >> > some little adjustments in your filters...
> >> >
> >> Little adjustments are well put....
> >> I don't understand the new options system and I don't see at the moment
> how it
> >> can be implemented with my library.
> >
> >> When exactly are the options processed and the values set? It is before
> init
> >> is called right?
> >
> >Yes it's before init.
> >
> >> But what if the filter needs to initialize something before the option
> values
> >> are written.
> >
> >You can't. Actually, if you need to do that, you might have a design
> >issue.
> >
> >> Also I found it weird to not see any reference of the filterXX_options
> variable
> >> again in the code. Too much magic going on...
> >
> >You should look at similar filters and use them as reference. The idea is
> >to have an AVOption array, and set the priv_class in the AVFilter
> >declaration.
>
> could you show him by converting one of his options to avoptions?
> it may help him fix his code...
>
> -compn
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