Building gstreamer with Qt installed in /opt

Linux distro's while they ship gstreamer pre-built do not always ship all the plugins. I needed to use qmlglsink with a particular version of Qt.

Took awhile to figure this one out. The solution is here (thanks to jackersson for the initial script):

https://gist.github.com/damiandixon/3e93ddb575bce40e59bd6d76984696b6


The main change to the script is:

cd gst-plugins-good git checkout $BRANCH

QT_LOC=/opt/Qt/5.11.1/gcc_64

PATH=$QT_LOC/bin:$PATH

LD_LIBRARY_PATH=$QT_LOC/lib:$LD_LIBRARY_PATH

PKG_CONFIG_PATH=$QT_LOC/lib/pkgconfig:$PKG_CONFIG_PATH

./autogen.sh --disable-gtk-doc --enable-qt

make

The result of a successful build is: user@Laptop:/usr/local/bin$ ./gst-inspect-1.0 qmlglsink Factory Details:   Rank                     none (0)   Long-name                Qt Video Sink   Klass                    Sink/Video   Description              A video sink that renders to a QQuickItem   Author                   Matthew Waters <matthew@centricular.com> Plugin Details:   Name                     qmlgl   Description              Qt gl plugin   Filename                 /usr/local/lib/gstreamer-1.0/libgstqmlgl.so   Version                  1.14.2   License                  LGPL   Source module            gst-plugins-good   Source release date      2018-07-20   Binary package           GStreamer Good Plug-ins source release   Origin URL               Unknown package origin