Forwarded from the Debian Bug Tracking System. Cf.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=193008

Package: nautilus-media
Version: 0.2.1-2
Severity: important
Tags: upstream

When attempting to thumbnail videos using gst-thumbnail, the following 
error message is returned repeatedly:

** (process:590): WARNING **: mpeg2dec: decoding error

I've tried installing the mpeg2dec package and using it to watch mpeg 
videos, however it doesn't work. It says that it either decoded 0 or
a random, very small, number of frames and then dies. This is most 
likely an upstream problem, but I'm reporting it here as well since it 
does render the gst-thumbnail portion of nautilus-media unusable.


- -- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux Thief 2.4.20 #1 Thu Mar 27 04:43:54 CST 2003 i686
Locale: LANG=C, LC_CTYPE=C

Versions of packages nautilus-media depends on:
ii  bonobo-activation            1:2.2.1.1-2 Bonobo Activation Framework
ii  debconf                      1.2.35      Debian configuration management sy
ii  gconf2                       2.2.0-1     GNOME configuration database syste
ii  gstreamer-audiofile          0.6.1-1     AudioFile plugin for GStreamer
ii  gstreamer-gconf              0.6.1-1     GConf support for GStreamer
ii  gstreamer-misc               0.6.1-1     Collection of various GStreamer pl
ii  gstreamer-plugin-apps        0.6.1-1     Simple GStreamer applications
ii  gstreamer-vorbis             0.6.1-1     Vorbis plugin for GStreamer
ii  libart-2.0-2                 2.3.12-1    Library of functions for 2D graphi
ii  libatk1.0-0                  1.2.3-1     The ATK accessibility toolkit
ii  libaudiofile0                0.2.3-4     The Audiofile Library
ii  libbonobo-activation4        1:2.2.1.1-2 Bonobo Activation Framework -- run
ii  libbonobo2-0                 2.2.1-1     Bonobo CORBA interfaces library
ii  libbonoboui2-0               2.2.0.1-2   The Bonobo UI library
ii  libc6                        2.3.1-17    GNU C Library: Shared libraries an
ii  libeel2-2                    2.2.3.1-1   Eazel Extensions Library (for GNOM
ii  libesd0                      0.2.29-1    Enlightened Sound Daemon - Shared 
ii  libgail-common               1.2.1-1     GNOME Accessibility Implementation
ii  libgail17                    1.2.1-1     GNOME Accessibility Implementation
ii  libgconf2-4                  2.2.0-1     GNOME configuration database syste
ii  libgcrypt1                   1.1.12-2    LGPL Crypto library - runtime libr
ii  libglade2-0                  2.0.1-3     Library to load .glade files at ru
ii  libglib2.0-0                 2.2.1-3     The GLib library of C routines
ii  libgnome2-0                  2.2.0.1-2   The GNOME 2 library - runtime file
ii  libgnomecanvas2-0            2.2.0.2-1   A powerful object-oriented display
ii  libgnomeui-0                 2.2.0.1-2   The GNOME 2 libraries (User Interf
ii  libgnomevfs2-0               2.2.3-2     The GNOME virtual file-system libr
ii  libgnutls5                   0.8.6-4     GNU TLS library - runtime library
ii  libgstreamer0.6-0            0.6.1-1     Core GStreamer shared library
ii  libgtk2.0-0                  2.2.1-6     The GTK+ graphical user interface 
ii  libjpeg62                    6b-7        The Independent JPEG Group's JPEG 
ii  liblinc1                     1:1.1.0-1   library to simplify creating netwo
ii  libnautilus2-2               2.2.3.1-1   Shared libraries that part of Naut
ii  liborbit2                    1:2.6.1-1   Libraries for ORBit2 - a CORBA ORB
ii  libpango1.0-0                1.2.1-3     Layout and rendering of internatio
ii  libpopt0                     1.6.4-2     lib for parsing cmdline parameters
ii  libtasn1-0                   0.1.2-1     Manage ASN.1 structures (runtime)
ii  libxml2                      2.5.6-2     GNOME XML library
ii  nautilus                     2.2.3.1-1   File manager and graphical shell (
ii  xlibs                        4.2.1-6     X Window System client libraries
ii  zlib1g                       1:1.1.4-11  compression library - runtime

- -- debconf information:
* nautilus-media/thumbnailer: true

From: Johannes Rohr <j.rohr@gmx.de>
Date: 12 May 2003 12:27:50 +0200

Alex Malinovich <demonbane@the-love-shack.net> writes:

> Package: nautilus-media
> Version: 0.2.1-2
> Severity: important
> Tags: upstream
> 
> When attempting to thumbnail videos using gst-thumbnail, the following 
> error message is returned repeatedly:
> 
> ** (process:590): WARNING **: mpeg2dec: decoding error
> 
> I've tried installing the mpeg2dec package and using it to watch mpeg 
> videos, however it doesn't work. It says that it either decoded 0 or
> a random, very small, number of frames and then dies. This is most 
> likely an upstream problem, but I'm reporting it here as well since it 
> does render the gst-thumbnail portion of nautilus-media unusable.

[...]

Alex, thanks for your report!

Still this sounds rather like a gstreamer bug. Or can you watch the
same video with another gstreamer based application (e.g. gst-player)?

Thanks,

Johannes




From: Alex Malinovich <demonbane@the-love-shack.net>
On Mon, 2003-05-12 at 05:27, Johannes Rohr wrote:
> Alex Malinovich <demonbane@the-love-shack.net> writes:
>=20
> > Package: nautilus-media
> > Version: 0.2.1-2
> > Severity: important
> > Tags: upstream
> >=20
> > When attempting to thumbnail videos using gst-thumbnail, the following=
=20
> > error message is returned repeatedly:
> >=20
> > ** (process:590): WARNING **: mpeg2dec: decoding error
> >=20
> > I've tried installing the mpeg2dec package and using it to watch mpeg=
=20
> > videos, however it doesn't work. It says that it either decoded 0 or
> > a random, very small, number of frames and then dies. This is most=20
> > likely an upstream problem, but I'm reporting it here as well since it=
=20
> > does render the gst-thumbnail portion of nautilus-media unusable.
>=20
> [...]
>=20
> Alex, thanks for your report!
>=20
> Still this sounds rather like a gstreamer bug. Or can you watch the
> same video with another gstreamer based application (e.g. gst-player)?
>=20
> Thanks,
>=20
> Johannes

gst-player plays the movies just fine. Only gst-thumbnail dies with the
mpeg2dec error. And mpeg2dec doesn't work. (I've already filed a bug
against mpeg2dec about it. #193010)

--=20
Alex Malinovich
Support Free Software, delete your Windows partition TODAY!
Encrypted mail preferred. You can get my public key from any of the
pgp.net keyservers. Key ID: A6D24837


Date: Tue, 13 May 2003 10:01:21 +0200
From: Johannes Rohr <j.rohr@comlink.apc.org>

On Mon, May 12, 2003 at 07:14:37PM -0500, Alex Malinovich wrote: [...]
> > Still this sounds rather like a gstreamer bug. Or can you watch the
> > same video with another gstreamer based application (e.g.
> > gst-player)?
> >=20
> > Thanks,
> >=20
> > Johannes
>=20
> gst-player plays the movies just fine. Only gst-thumbnail dies with
> the mpeg2dec error. And mpeg2dec doesn't work. (I've already filed a
> bug against mpeg2dec about it. #193010)

mpeg2dec is a separate package which, as far as I see, has no
relationship with gstreamer (gstreamer-mpeg2dec neither recommends nor
suggests or depends on it).  AFAIK all they have in common is that they
both depend on the libmpeg2-3.

But, well, who knows... What happens if you remove mpeg2dec and then
retry to run gst-thumbnail?

BTW: Thumbnailing mpeg videos works for me - even without
gstreamer-mpeg2dec.

Can you point me to an URL to reproduce the error you have encountered?

Thanks,

Johannes.


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Date: Wed, 14 May 2003 14:59:54 +0200
From: Johannes Rohr <j.rohr@comlink.apc.org>
On Mon, May 12, 2003 at 03:08:06AM -0500, Alex Malinovich wrote:
> I've tried installing the mpeg2dec package and using it to watch mpeg=20
> videos, however it doesn't work. It says that it either decoded 0 or
> a random, very small, number of frames and then dies. This is most=20
> likely an upstream problem, but I'm reporting it here as well since it=20
> does render the gst-thumbnail portion of nautilus-media unusable.

Could you give an URL/Bugzilla bug ID for the bug you've reported
upstream?

Thanks,

Johannes