marques@split:~$ sudo dpkg --purge --force-depends gstreamer0.10-ffmpeg dpkg: gstreamer0.10-ffmpeg: dependency problems, but removing anyway as you requested: arista depends on gstreamer0.10-ffmpeg. (Reading database ... 370552 files and directories currently installed.) Removing gstreamer0.10-ffmpeg ... marques@split:~$ sudo aptitude install gstreamer0.10-ffmpeg Reading package lists... Done Building dependency tree Reading state information... Done Reading extended state information Initializing package states... Done Writing extended state information... Done The following NEW packages will be installed: gstreamer0.10-ffmpeg 0 packages upgraded, 1 newly installed, 0 to remove and 1 not upgraded. Need to get 128kB of archives. After unpacking 352kB will be used. Writing extended state information... Done Get:1 http://us.archive.ubuntu.com/ubuntu/ maverick/universe gstreamer0.10-ffmpeg 0.10.10-1 [128kB] Fetched 128kB in 0s (177kB/s) Selecting previously deselected package gstreamer0.10-ffmpeg. (Reading database ... 370542 files and directories currently installed.) Unpacking gstreamer0.10-ffmpeg (from .../gstreamer0.10-ffmpeg_0.10.10-1_amd64.deb) ... Setting up gstreamer0.10-ffmpeg (0.10.10-1) ... Reading package lists... Done Building dependency tree Reading state information... Done Reading extended state information Initializing package states... Done Writing extended state information... Done Current status: 0 broken [-1]. displague@split:~$ arista-gtk arista.presets [369]: INFO Attempting to install elements: ffdeinterlace arista.presets [378]: ERROR Unable to install required elements! ... displague@split:~$ rm -rf .gstreamer-0.10 displague@split:~$ gst-inspect-0.10 no more csLADSPA plugins (gst-plugin-scanner:2907): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-0.10/libgstpostproc.so': libavutil.so.49: cannot open shared object file: No such file or directory (gst-plugin-scanner:2907): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-0.10/libgstffmpeg.so': libavutil.so.49: cannot open shared object file: No such file or directory ... I have libavutil49-extra which provides libavutil49, but doesn't provide the so.49 file this is looking for. displague@split:~$ sudo apt-get install libavutil49 Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: libavutil-extra-49 The following NEW packages will be installed: libavutil49 0 upgraded, 1 newly installed, 1 to remove and 1 not upgraded. Need to get 65.1kB of archives. After this operation, 69.6kB of additional disk space will be used. Do you want to continue [Y/n]? y Get:1 http://us.archive.ubuntu.com/ubuntu/ maverick/main libavutil49 4:0.5.1-1ubuntu1 [65.1kB] Fetched 65.1kB in 1s (60.1kB/s) dpkg: libavutil-extra-49: dependency problems, but removing anyway as you requested: vlc-nox depends on libavutil49 (>= 4:0.5.1-1) | libavutil-extra-49 (>= 4:0.5.1-1); however: Package libavutil49 is not installed. Package libavutil-extra-49 is to be removed. audacious-plugins depends on libavutil49 (>= 4:0.5.1-1) | libavutil-extra-49 (>= 4:0.5.1-1); however: Package libavutil49 is not installed. Package libavutil-extra-49 is to be removed. gstreamer0.10-ffmpeg depends on libavutil49 (>= 4:0.5.1-1) | libavutil-extra-49 (>= 4:0.5.1-1); however: Package libavutil49 is not installed. Package libavutil-extra-49 is to be removed. kino depends on libavutil49 (>= 4:0.5+svn20090706-3) | libavutil-extra-49 (>= 4:0.5+svn20090706-3); however: Package libavutil49 is not installed. Package libavutil-extra-49 is to be removed. (Reading database ... 370552 files and directories currently installed.) Removing libavutil-extra-49 ... Selecting previously deselected package libavutil49. (Reading database ... 370544 files and directories currently installed.) Unpacking libavutil49 (from .../libavutil49_4%3a0.5.1-1ubuntu1_amd64.deb) ... Setting up libavutil49 (4:0.5.1-1ubuntu1) ... Processing triggers for libc-bin ... ldconfig deferred processing now taking place .... It doesn't complain after that.. It doesn't make a queue after I select a folder - but I assume that is a different problem. It looks like the latest packages that provide libavutil functionality is libavcodec52 and libavcodec52-extra