Debian ist gut und recht, aber leider ist die ganze Geschichte mit Multimedia-Tools auf Grund von Problemen mit geistigem Eigentum unnötig kompliziert.
Das führt dann auch mal zu einer solchen Flut von Fehlermeldungen, wenn man den mencoder benutzen möchte:
$ mencoder /usr/bin/mencoder: /usr/lib/i686/cmov/libswscale.so.0: no version information available (required by /usr/bin/mencoder) /usr/bin/mencoder: /usr/lib/i686/cmov/libpostproc.so.51: no version information available (required by /usr/bin/mencoder) /usr/bin/mencoder: /usr/lib/i686/cmov/libavutil.so.50: no version information available (required by /usr/bin/mencoder) /usr/bin/mencoder: /usr/lib/i686/cmov/libavcodec.so.52: no version information available (required by /usr/bin/mencoder) /usr/bin/mencoder: /usr/lib/i686/cmov/libavformat.so.52: no version information available (required by /usr/bin/mencoder) /usr/bin/mencoder: relocation error: /usr/bin/mencoder: symbol av_reverse, version LIBAVUTIL_50 not defined in file libavutil.so.50 with link time reference
Das Problem konnte ich schlussendlich lösen, indem ich folgende Zeilen wieder in die /etc/apt/sources.list aufnahm:
... # mplayer deb http://www.debian-multimedia.org squeeze main deb-src http://www.debian-multimedia.org squeeze main ...
Anschliessend ein apt-get update && apt-get upgrade. Irgendwann einmal waren dann nur noch zwei Fehlermeldungen zu sehen:
$ mencoder /usr/bin/mencoder: /usr/lib/i686/cmov/libavcodec.so.52: no version information available (required by /usr/bin/mencoder) /usr/bin/mencoder: /usr/lib/i686/cmov/libavformat.so.52: no version information available (required by /usr/bin/mencoder)
Doch dieses Problem schien nun unmöglich zu lösen zu sein:
# apt-get install ffmpeg libavcodec52 libavdevice52 libavformat52 libavfilter1
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
ffmpeg : Depends: libavfilter1 (>= 5:0.6.1+svn20101128) but 4:0.6.2-3 is to be installed
libavfilter1 : Depends: libavcodec52 (< 4:0.6.2-99) but 5:0.6.1+svn20101128-0.2 is to be installed or
libavcodec-extra-52 (< 4:0.6.2-99) but it is not installable
Depends: libavutil50 (< 4:0.6.2-99) but 5:0.6.1+svn20101128-0.2 is to be installed or
libavutil-extra-50 (< 4:0.6.2-99) but it is not installable
Depends: libswscale0 (< 4:0.6.2-99) but 5:0.6.1+svn20101128-0.2 is to be installed or
libswscale-extra-0 (< 4:0.6.2-99) but it is not installable
E: Broken packages
Die Lösung:
/etc/apt/preferences:
... Package: * Pin: origin www.debian-multimedia.org Pin-Priority: 600
und dann:
# apt-get install -t unstable ffmpeg
