[dvd::rip] Distorted stream/images using -x dvd

Hiho,

I just got a report from a dvd::rip user about distorted preview images.
I could reproduce the problem when ripping directly from a DVD using -x
dvd, but not when transcoding with -x vob (same DVD title, prior ripped
to harddisk with tccat). Since tccat works, transcode is able to read 
the DVD in general (at least tccat), but obviously transcode -x dvd has
some trouble.

The user tested with several 64bit distros (Open Suse, Mandriva, Gentoo
and Fedora Core 5), all with the same result! Unfortunately he didn't 
report exact version numbers of the affected packages, but since I can 
reproduce this with transcode 1.0.2 on my recently updated i386 Debian 
sid (packages from Christian Marillat) I think this is worth a report ;)

The preview grab command line looks like this:

  % transcode -H 10 --print_status 20 -o snapshot -y ppm,null \
       -T 25,-1,1 -x dvd,null -i /dev/dvd -c 25-26

(same for -y im,null -F jpg or something like that, so it's definitely 
an import, not an export problem)

This generates an image like this:

  http://stuff.exit1.org/tc/distort_image.jpg

Transcoding a video using -x dvd results in a correspondently distorted
stream.

I wonder if -x dvd works for anybody and if yes, which version of 
libdvdread is used (I have 0.9.4 here, tested on two different systems,
same result).

Regards,

Joern

-- 
 .''`.  Jörn Reder <joern@xxxxxx>
: :' :  http://www.exit1.org/ http://www.zyn.de/
`. `'
  `-    Debian GNU/Linux -- The power of freedom
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