[gst-devel] gst-ffmpeg conflicting lib versions

John Stebbins stebbins at jetheaddev.com
Wed Dec 3 18:31:44 CET 2008

Sebastian Dröge wrote:
> Am Montag, den 01.12.2008, 11:06 -0800 schrieb John Stebbins:
>> Trying to get a clue...
>> I've got a application that has a snapshot of ffmpeg libs statically 
>> linked.  I'm attempting to use the version of gst-ffmpeg plugin (0.10.5) 
>> packaged with the distribution (ubuntu 8.10) which unfortunately has 
>> been linked against the system ffmpeg libs.  Whenever gstreamer tries to 
>> use the ffmpeg plugin, I'm getting a segfault.  My best guess is that 
>> it's somehow accessing something in my statically linked ffmpeg 
>> snapshot.  But I can't see how it would do that as its loaded 
>> dynamically at run time and should not be able to see the symbols for 
>> the static version.
>> Anybody have any ideas?
> Your application with the statically linked ffmpeg should somehow make
> sure that the ffmpeg symbols are not exported. Also there's IIRC some
> linked flag to make sure that global symbols inside the executable are
> not overriden by some shared library (maybe -Bsymbolic ?).
Sebastian, your a genius.  ld flag --exclude-libs solves the problem.  
Many thanks.

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