Ubuntu 16.04 LTS, QT 5.6.1, Gstreamer 1.0 = no service found for "org.qt-project.qt.mediaplayer"

thealse

Hi,

I am using:

Ubuntu 16.04 LTS
Gstreamer 1.0 packages
QT 5.6

I downloaded the latest online run-installer from the webpage and installed QT 5.6 using the maintenance tool.
Everything installed fine.

But running my c++/qt quick application (or even the included multimedia video example) which utilizes QtMultimedia 5.6. I get the following output when I try to open a video:

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

I have spent hours searching the internet now but all the issues are old, related to gstreamer or configure.
At this point I have no idea what the problem could be, any suggestion is helpful.
(no need to say that the default linux video player has no problem opening the video I am trying to open with QT)

SGaist

Hi,

Did you also install the GStreamer plugin packages ?

thealse

@SGaist Please notice that I updated the question. I am testing different ways.
@SGaist At this point I have installed everything with gstreamer I could find.
Below is the complete list of installed packages on the machine:

dpkg --get-selections | grep -v deinstall | grep gstream

gir1.2-gstreamer-1.0   			     install
gstreamer1.0-alsa:amd64   			 install
gstreamer1.0-clutter-3.0   		 	 install
gstreamer1.0-fluendo-mp3:amd64  	 install
gstreamer1.0-libav:amd64   			 install
gstreamer1.0-nice:amd64   			 install
gstreamer1.0-plugins-bad:amd64   		 install
gstreamer1.0-plugins-bad-faad:amd64   	 install
gstreamer1.0-plugins-bad-videoparsers:amd64    install
gstreamer1.0-plugins-base:amd64   		 install
gstreamer1.0-plugins-base-apps   		 install
gstreamer1.0-plugins-good:amd64   		 install
gstreamer1.0-plugins-ugly:amd64   		 install
gstreamer1.0-plugins-ugly-amr:amd64   	 install
gstreamer1.0-pulseaudio:amd64   		 install
gstreamer1.0-tools   				     install
gstreamer1.0-x:amd64   			         install
libgstreamer-plugins-bad1.0-0:amd64   	 install
libgstreamer-plugins-base1.0-0:amd64   	 install
libgstreamer-plugins-base1.0-dev   		 install
libgstreamer-plugins-good1.0-0:amd64   	 install
libgstreamer1.0-0:amd64   		     	 install
libgstreamer1.0-dev   				     install
libreoffice-avmedia-backend-gstreamer  	 install

SGaist

Are you using a custom build of Qt ?

If not and IIRC, Qt 5.6 still uses the old 0.1 GStreamer.

Mark81

@SGaist the X11 requirements say also gstreamer-1.0 is supported:

http://doc.qt.io/qt-5/linux-requirements.html

The minimum required version of GStreamer is 0.10.24. The 1.x series is also supported.

To build Qt Multimedia, you need the GStreamer library, base plugins, and development files for your system. To run applications that use Qt Multimedia, you might also need to install the following GStreamer plugins: 'good', 'ugly', 'bad', ffmpeg (0.10), and libav (1.x).

If the op is not using X11 I had the same problem (w/ gstreamer-1.0) solved compiling also the opengl module.

SGaist

Supported yes, but you have to re-build the GStreamer backend to use it.