Thanks Thiago, you opened my eyes.
I fact we deploy our app with all needed libs including libqst*, and all
needed stuff in mediaservice directory. But this libs in mediaservice
need to be tell where to take the correct libqst libs.
I just changed their rpath (with patchelf) in our deployment script and
all is fine now. Sound is back.
Thanks again a lot
Philippe
Le 14-11-2016 20:09, Thiago Macieira a écrit :
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.
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