Hi Al,

On Tuesday 23 February 2010 15:50:32 Al Bogner wrote:
> Am Dienstag, 23. Februar 2010 14:06:50 schrieb Georg Martius:
> > On Tuesday 23 February 2010 11:21:59 Al Bogner wrote:
<snip>...</snip>
> > Take care that you wast as little information in the intermediate format.
>
> That's exactly why I am asking.
>
> >  You can even try one of the loss-less formats of ffmpeg see
> >  transcode -i /dev/null -y ffmpeg -F list
> > but make sure your editing program can read them.
>
> Does cinelerra support it? If I can't get familiar with cinellera, I will
> give kdenlive a try.
I don't know! Find it out yourself and post your results here.

> > > Since we are here on the transcode-ML I ask you kindly to help me for
> > > the 2nd solution and how to prepare with the best possible quality.
> > >
> > > http://home.arcor.de/bogner/test_0001.avi contains a short avi-file in
> > > PAL (21.3MB)
> > >
> > > What could I do to improve it?
> >
> > I will only speak about the stabilization part:
> > First of all you prob. need to deinterlace the clips.
>
> Does the stabilizer work only with deinterlaced material? Since I would
> create a DVD and a x264,file I thought I will deinterlace, when creating
> the x264- file.
>
> > I have no idea what
> >  the stabilize plugin is doing with the interlaced clip. (would be
> >  interesting to know!).
>
> Try it out ;-)
I tried and I think you should deinterlace first, see below.
>
> If anyone has troubles to download the file, please let me know. The
> transfer is limited to 1 GB. I fear that bots consume a lot bandwidth so I
> didn't put it on my own webspace.
>
> But maybe this was the problem, why I got no result, I mean a file.
>
> transcode -J stabilize -i test_0001.avi -y null,null -o dummy
> transcode -J transform -i test_0001.avi -o test_0001.stable.avi
<snip>...</snip>
You miss the output format and apparently transcode does not detect the movie 
type correctly such that you also need to specify the input codec.
Here is what I did on your video:
First I deinterlaced the clip:
transcode -J smartdeinter -i test_0001.avi -x ffmpeg -y ffmpeg,tcaud -F ffv1-o 
test_0001.deinter.avi
See you have to add -x ffmpeg and -y ffmpeg,tcaud -F ffv1 
ffv1 is a loss-less codec such that we don't have to worry about multiple 
encoding.
Stabilization:
transcode -J stabilize -i test_0001.deinter.avi -x ffmpeg -y null,null -o 
dummy
and
transcode -J transform=zoom=10:smoothing=20 -i test_0001.deinter.avi -x ffmpeg 
-y ffmpeg,tcaud -F ffv1 -o test_0001.stable.avi

zoom=10 gives a simple answer to you problem with the borders. This means the 
image is zoomed by 10%. Note that for stabilization the the transform plugin 
zooms anyway to get rid of moving borders (see "finalzoom "in the output). 
With zoom=10 you add 10% to the automatic detected value.
smoothing=20 (10 is default) makes the movie even more smooth (but limits 
maximal camera speed)
I uploaded the final file (as mpeg4/divx because of size) to 
http://public.hronopik.de/files/test_0001.stable.avi
<snip>....</snip>

Regards!
        Georg

-- 
---- Georg Martius,  Tel: +49 177 6413311  -----
------- http://www.flexman.homeip.net ----------

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