Project ERROR: Qt5GStreamerQuick-1.0 development package not found

suatberkantgulen

Hi,

I'm using Ubuntu 18.04 and i want to use qt with gstreamer. I follow these steps one by one to install qt creator:

-> sudo apt-get install build-essential
-> sudo apt-get install qtcreator
-> sudo apt-get install qt5-default

Then I install the necessary libraries for the gstreamer with the commands below. (some libraries required for the project)

-> sudo apt-get update
-> sudo apt-get install --reinstall libxcb-xinerama0
-> sudo apt-get install libqt5gstreamerquick-1.0-0
-> sudo apt-get install libcairo2-dev
-> sudo apt-get install libgstreamer1.0-0 gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-doc gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio

When I installed the above packages, there was no error. But QtCreator produces the same error everytime when i build.

Project ERROR: Qt5GStreamerQuick-1.0 development package not found

I tried many things I found on the internet about the subject. I could not solve. I can't find of anything else to try.

Hope someone can help me, I would appreciate any kind of help..

artwaw

Development packages have -dev added, so you should search for those. They contain header files etc.

suatberkantgulen

Sorry i forgot to write, I had already installed the -dev package which is libqt5gstreamer-dev.

Should I install another package?

artwaw

Hard to say, I am not Ubuntu guy. But I found this: https://forum.qt.io/topic/63557/qt5gstreamer-1-0-development-package-not-found/8

Pablo J. Rogina

@suatberkantgulen related to the issue pointed out by @artwaw, I'd check if you have pkg-config installed.

suatberkantgulen

Hi @artwaw and @Pablo-J-Rogina ,

When I add the following line to the ".pro" file.

PKG_CONFIG += Qt5GStreamer-1.0 Qt5GStreamerQuick-1.0

Qt5GStreamer-1.0 package does not cause any problem. But the other package gives me an error.

Qt5GStreamerQuick-1.0 development package not found.

Which part should I check?

BTW : I configure my PKG_CONFIG_PATH like that:

export PKG_CONFIG_PATH=/usr/lib/x86_64-linux-gnu/pkgconfig/

I can see all .pc files under path : /usr/lib/x86_64-linux-gnu/pkgconfig
Qt5GStreamer-1.0.pc
Qt5GStreamerQuick-1.0.pc
...

SGaist

Hi,

One thing to note, QtGStreamer is in unmaintained state since some times already.

Depending on what you want to do, you can use QMediaPlayer with a custom pipeline.

henriquebg

Hi!

Although a little old, I had the same problem.

I found this discussion that helped me to solve and also helped me to learn how to debug the problem: https://github.com/baedert/corebird/issues/189

Installing libgstreamer-plugins-base1.0-dev made the Qt5GStreamer*-1.0 development package not found vanish. :)

Hope it helps.

artwaw

@henriquebg Good job, thank you! This will hopefully help the others!