Thanks for your answer! I fixed my issue thank of this bug report: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=671794
It looks like something is broken about libgstmusepack.so. I have moved the file. It is now unreachable by gstreamer that force it to use another plugin to decode MPC. So it is working. I posted bug report (and workaround) on launchpad. 2014-08-23 16:18 GMT+02:00 Olivier Goffart <oliv...@woboq.com>: > On Saturday 23 August 2014 15:46:46 Roland Winklmeier wrote: >> Am 22.08.2014 14:04, schrieb Cornelius Hald: >> >> I recently ported application from Qt4 to Qt5 and I rewrote a bit the >> >> audioplayer in it. Now it is using QtMultimedia instead of Phonon. >> >> There is an unresolved dependency issue with the combination Qt5 - >> GStreamer: >> Qt5 uses GStreamer on Linux, GStreamer itself uses libproxy, which again >> interfaces with Qt4 and bombs the application. >> Qt5 -> GStreamer -> ... -> libproxy -> Qt4. >> >> https://bugs.kde.org/show_bug.cgi?id=323407. >> >> I'm not sure who is in charge to fix this (if there is someone at all). >> KDE closed the bug report, because its of course not their fault. Up to >> now, I'm not aware of any workaround. > > There is unfortunately no solution! > > As a workaround, you can compile Qt5 in a namespace (the -qtnamespace option > in Qt's configure) > > -- > Olivier > > Woboq - Qt services and support - http://woboq.com - http://code.woboq.org > _______________________________________________ > Development mailing list > Development@qt-project.org > http://lists.qt-project.org/mailman/listinfo/development _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development