Because the so file for the plugin is defective. It lacks a reference to libaravis. You can see this with ldd. Bert Douglas <div class="gmail_quote">On Tue, Sep 7, 2010 at 7:24 AM, Stefan Kost <<a href="mailto:ensonic@hora-obscura.de">ensonic@hora-obscura.de</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div><div></div><div class="h5">On 01.09.2010 17:33, Bert Douglas wrote: > Hi All, > > I managed to use aravis plugin from shell script as shown below. > How can I do same sort of thing from python? > > Thanks much, > Bert Douglas > > ----------------------------------- > > > LD_PRELOAD=/usr/lib/libaravis.so \ > gst-launch --gst-plugin-load=/usr/lib/gstreamer-0.10/libgstaravis.so \ > aravissrc camera-name="" \ > ! ffmpegcolorspace \ > ! autovideosink > </div></div>Why do you have to LD_PRELOAD the lib? Stefan > > > ------------------------------------------------------------------------------ > This SF.net Dev2Dev email is sponsored by: > > Show off your parallel programming skills. > Enter the Intel(R) Threading Challenge 2010. > <a href="http://p.sf.net/sfu/intel-thread-sfd" target="_blank">http://p.sf.net/sfu/intel-thread-sfd</a> > > > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> > ------------------------------------------------------------------------------ This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. <a href="http://p.sf.net/sfu/intel-thread-sfd" target="_blank">http://p.sf.net/sfu/intel-thread-sfd</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> </blockquote></div>