[Libav-user] Questions on Different Packages

Kirill Gavrilov gavr.mail at gmail.com
Tue Apr 12 09:16:06 CEST 2011

Only your 'distro' can clarify what the difference between the packages
(however you didn't name it!).

libavcodec-dev probably contains headers (.h) and libraries (.a) for
development (to build applications based on libavcodec).
libavcodec-unstripped-52 probably contains unstripped binaries which can be
used for debugging purposes;
libavcodec52 probably the main version with dynamic library avcodec;
libavcodec-extra-52 probably build with some extra flags or/and extra

If you look here <http://packages.ubuntu.com/ru/karmic/libavcodec-extra-52>and
here <http://packages.ubuntu.com/en/karmic/libavcodec52> you'll notice that
extra version additionally depends on these libraries:

   - libdirac0c2a <http://packages.ubuntu.com/ru/karmic/libdirac0c2a> general
   purpose video codec - library
   - dep: libfaad0 <http://packages.ubuntu.com/ru/karmic/libfaad0> (>=
   2.6.1) freeware Advanced Audio Decoder - runtime files
   - dep: libmp3lame0 <http://packages.ubuntu.com/ru/karmic/libmp3lame0> An
   MP3 encoding library
   - dep: libopenjpeg2 <http://packages.ubuntu.com/ru/karmic/libopenjpeg2> JPEG
   2000 image compression/decompression librar
   - libx264-67 <http://packages.ubuntu.com/ru/karmic/libx264-67> (>=
   1:0.svn20090502) x264 video coding library
   - dep: libxvidcore4
<http://packages.ubuntu.com/ru/karmic/libxvidcore4>(>= 1:1.0.0-0.0)
   quality ISO MPEG4 codec library

2011/4/12 Kip Warner <kip at thevertigo.com>

> Hey list,
> My distro has four packages for the libavcodec that I can see. I am
> trying to figure out what they all are for.
> These three all look like runtimes of some sort with something to do
> with Dolby Digital enabled audio codec.
> libavcodec52
> libavcodec-extra-52
> libavcodec-unstripped-52
> But I am not sure how they are different.
> This looks like development headers.
> libavcodec-dev:
> If anyone can clarify the purpose of the first three, that would be
> helpful.
> --
> Kip Warner -- Software Engineer
> OpenPGP encrypted/signed mail preferred
> http://www.thevertigo.com
> _______________________________________________
> Libav-user mailing list
> Libav-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/libav-user
> -----------------------------------------------
Kirill Gavrilov,
Software designer.
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