Em segunda-feira, 14 de novembro de 2016, às 07:08:41 PST, maitai escreveu: > Since Ubuntu 16.04, my qt (qt5.7 official release/QWidget-based) > application cannot play a sound (no crash, but no sound). The very same > app works fine with Ubuntu 14.04. I get that kind of messages in the > console when trying to play a sound (.mp3 file) with QMultimedia: > > Warning: "No decoder available for type 'audio/mpeg, mpegversion=(int)1, > mpegaudioversion=(int)1, layer=(int)3, rate=(int)44100, channels=(int)2, > parsed=(boolean)true'." > > or (depending on the machine) > > defaultServiceProvider::requestService(): no service found for - > "org.qt-project.qt.mediaplayer"
This sounds like a mismatch between the compiled GStreamer plugin version and the library you have installed. Since it worked on an older version, you probably have a plugin for GStreamer 0.10 and your newer distro has GStreamer 1.0. > symbol lookup error: (...)/mediaservice/libgstmediaplayer.so: undefined > symbol: gst_video_connector_get_type This is in the #else path for GST_CHECK_VERSION(1,0,0), so it really indicates your plugin is linked against GStreamer 0.10 instead of the newer version. The call to gst_video_connector_get_type failing indicates that the Qt private helper library libqgsttools_p.so.1 is corrupted or missing. > I believe it's gstreamer related, but before I start digging, may be > someone has some clues about that? Upgrade your plugin. Use GStreamer 1.0 only. -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
