mplayer and ffmpeg biting each other's tail ...

[Albretch Mueller <lbrtchx@gmail.com>]

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 I am having some nasty dependency problems which branching seem get
more and more complicated
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 Basically, I need to install ffmpeg on  configuration that had
mplayer previously installed
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# dpkg -i libavcodec51_0.svn20080206-18+lenny3_i386.deb
(Reading database ... 93912 files and directories currently installed.)
Preparing to replace libavcodec51 0.svn20080206-18+lenny3 (using
libavcodec51_0.svn20080206-18+lenny3_i386.deb) ...
Unpacking replacement libavcodec51 ...
dpkg: dependency problems prevent configuration of libavcodec51:
 libavformat52 (4:0.5+svn20090706-2+b1) breaks libavcodec51 (<<
3:0.svn20090303-1) and is installed.
  Version of libavcodec51 to be configured is 0.svn20080206-18+lenny3.
dpkg: error processing libavcodec51 (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 libavcodec51
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root@Microknoppix:/media/sda1/prjx/ffmpeg# dpkg -r libavformat52
dpkg: dependency problems prevent removal of libavformat52:
 mplayer depends on libavformat52 (>= 3:0.svn20090303-1) |
libavformat-unstripped-52 (>= 3:0.svn20090303-1); however:
  Package libavformat52 is to be removed.
  Package libavformat-unstripped-52 is not installed.
dpkg: error processing libavformat52 (--remove):
 dependency problems - not removing
Errors were encountered while processing:
 libavformat52
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 How can I fix this mess?
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 thanks
 lbrtchx