QMediaPlayer: defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer" (Ubuntu)

[TimurE]

Hello. I installed Qt 5.7 using official installer on Ubuntu 16.04 and 14.04. In both systems I have problem with Qt Multimedia:

defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer"

GStreamer has been installed. Where is the problem? Please help.

[TimurE]

I tried to use system version of Qt, and examples work in it. But what if I want to use newer Qt version?

[SGaist]

Hi,

Which version of GStreamer did you install ? Did you also install the plugin packages ?

[TimurE]

I installed gstreamer0.10 with plugins, and it has started to work. But can I use gstreamer1? System version of Qt uses gstreamer 1.

[SGaist]

You may have to rebuild Qt Multimedia (only that module) to use GStreamer 1.0.

[Gnenux]

Hi,my english is poor.this is a simple way to sovle this problem on linux.
1.> sudo apt-get install libqt5multimedia5-plugins
2.> cp -a /usr/lib/x86_64-linux-gnu/qt5/plugins/mediaservice/ /your/path/to/Qt5/.../gcc_64/plugins/
The main purpose is to avoid recompiling the QtMultimedia module.if you want to recompiling the QtMultimedia module.you should:
1.> install required gstreamer
2.> cd /your/path/to/Qt5/.../Src/qtmultimedia
3.> qmake && make
4.> make install
or:
2.> cd /your/path/to/Qt5/.../Src/qtmultimedia/src/plugins/gstreamer
3.> qmake && make
4.> make install
The second method of failure probability is very large.Depending on whether your gstreamer installed correctly.

[SGaist]

@Gnenux Your first suggestion is not a real solution, you are mixing plugins from different Qt versions built with potentially different options.