hmm, seems like i have lots, see below. any guess how i could focus on the “relevant” ones? i’m not able to trace any further into the stack, it goes into goes into thread management routines?
$ apt list | grep gstreamer
baresip-gstreamer/bionic,bionic 0.5.7-1build1 amd64
gir1.2-gstreamer-1.0/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
gnome-twitch-player-backend-gstreamer-cairo/bionic-updates 0.4.1-2ubuntu0.18.04.1 amd64
gnome-twitch-player-backend-gstreamer-clutter/bionic-updates 0.4.1-2ubuntu0.18.04.1 amd64
gnome-twitch-player-backend-gstreamer-opengl/bionic-updates 0.4.1-2ubuntu0.18.04.1 amd64
gstreamer-qapt/bionic,bionic 3.0.4-0ubuntu1 amd64
gstreamer0.10-qapt/bionic,bionic,bionic,bionic 3.0.4-0ubuntu1 all
gstreamer1.0-alsa/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
gstreamer1.0-clutter-3.0/bionic,bionic,now 3.0.26-1 amd64 [installed]
gstreamer1.0-crystalhd/bionic,bionic 1:0.0~git20110715.fdd2f19-12 amd64
gstreamer1.0-doc/bionic-updates,bionic-updates 1.14.5-0ubuntu1~18.04.1 all
gstreamer1.0-espeak/bionic,bionic 0.4.0-3 amd64
gstreamer1.0-fluendo-mp3/bionic,bionic 0.10.32.debian-1 amd64
gstreamer1.0-gl/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
gstreamer1.0-gtk3/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed,automatic]
gstreamer1.0-libav/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
gstreamer1.0-libav-dbg/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
gstreamer1.0-nice/bionic,bionic 0.1.14-1 amd64
gstreamer1.0-omx-bellagio-config/bionic,bionic 1.12.4-1 amd64
gstreamer1.0-omx-generic/bionic,bionic 1.12.4-1 amd64
gstreamer1.0-omx-generic-config/bionic,bionic 1.12.4-1 amd64
gstreamer1.0-opencv/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
gstreamer1.0-packagekit/bionic-updates,now 1.1.9-1ubuntu2.18.04.5 amd64 [installed]
gstreamer1.0-plugins-bad/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
gstreamer1.0-plugins-bad-dbg/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
gstreamer1.0-plugins-bad-doc/bionic-updates,bionic-updates 1.14.5-0ubuntu1~18.04.1 all
gstreamer1.0-plugins-base/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
gstreamer1.0-plugins-base-apps/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
gstreamer1.0-plugins-base-dbg/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
gstreamer1.0-plugins-base-doc/bionic-updates,bionic-updates 1.14.5-0ubuntu1~18.04.1 all
gstreamer1.0-plugins-good/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
gstreamer1.0-plugins-good-dbg/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
gstreamer1.0-plugins-good-doc/bionic-updates,bionic-updates 1.14.5-0ubuntu1~18.04.1 all
gstreamer1.0-plugins-ugly/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
gstreamer1.0-plugins-ugly-dbg/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
gstreamer1.0-plugins-ugly-doc/bionic-updates,bionic-updates 1.14.5-0ubuntu1~18.04.1 all
gstreamer1.0-pocketsphinx/bionic,bionic 0.8.0+real5prealpha-1ubuntu2 amd64
gstreamer1.0-pulseaudio/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
gstreamer1.0-python3-dbg-plugin-loader/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
gstreamer1.0-python3-plugin-loader/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
gstreamer1.0-qt5/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
gstreamer1.0-rtsp/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
gstreamer1.0-rtsp-dbg/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
gstreamer1.0-tools/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
gstreamer1.0-vaapi/bionic-updates 1.14.5-0ubuntu1~ubuntu18.04.1 amd64
gstreamer1.0-vaapi-doc/bionic-updates,bionic-updates 1.14.5-0ubuntu1~ubuntu18.04.1 all
gstreamer1.0-x/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
libcanberra-gstreamer/bionic,bionic 0.30-5ubuntu1 amd64
libgstreamer-gl1.0-0/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
libgstreamer-ocaml/bionic,bionic 0.2.0-2build4 amd64
libgstreamer-ocaml-dev/bionic,bionic 0.2.0-2build4 amd64
libgstreamer-opencv1.0-0/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
libgstreamer-plugins-bad1.0-0/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed,automatic]
libgstreamer-plugins-bad1.0-dev/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
libgstreamer-plugins-base1.0-0/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
libgstreamer-plugins-base1.0-dev/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
libgstreamer-plugins-good1.0-0/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
libgstreamer-plugins-good1.0-dev/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
libgstreamer1-perl/bionic,bionic,bionic,bionic 0.003-3 all
libgstreamer1.0-0/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
libgstreamer1.0-0-dbg/bionic-updates 1.14.5-0ubuntu1~18.04.1 amd64
libgstreamer1.0-dev/bionic-updates,now 1.14.5-0ubuntu1~18.04.1 amd64 [installed]
libgstreamerd-3-0/bionic,bionic 3.7.5-2build1 amd64
libgstreamerd-3-dev/bionic,bionic 3.7.5-2build1 amd64
libgstreamermm-1.0-1/bionic,bionic 1.10.0+dfsg-1 amd64
libgstreamermm-1.0-dev/bionic,bionic 1.10.0+dfsg-1 amd64
libgstreamermm-1.0-doc/bionic,bionic,bionic,bionic 1.10.0+dfsg-1 all
libqt5gstreamer-1.0-0/bionic,bionic 1.2.0-5 amd64
libqt5gstreamer-dev/bionic,bionic 1.2.0-5 amd64
libqt5gstreamerquick-1.0-0/bionic,bionic 1.2.0-5 amd64
libqt5gstreamerui-1.0-0/bionic,bionic 1.2.0-5 amd64
libqt5gstreamerutils-1.0-0/bionic,bionic 1.2.0-5 amd64
libreoffice-avmedia-backend-gstreamer/bionic-updates,bionic-security,now 1:6.0.7-0ubuntu0.18.04.10 amd64 [installed]
liquidsoap-plugin-gstreamer/bionic,bionic 1.1.1-7.2ubuntu1 amd64
mkchromecast-gstreamer/bionic,bionic,bionic,bionic 0.3.8.1-1 all
phonon-backend-gstreamer/bionic,bionic 4:4.9.0-1 amd64
phonon-backend-gstreamer-common/bionic,bionic 4:4.9.0-1 amd64
phonon4qt5-backend-gstreamer/bionic,bionic 4:4.9.0-1 amd64
qml-module-qtgstreamer/bionic,bionic 1.2.0-5 amd64
qtgstreamer-doc/bionic,bionic,bionic,bionic 1.2.0-5 all
qtgstreamer-plugins-qt5/bionic,bionic 1.2.0-5 amd64
ruby-gstreamer/bionic,bionic 3.2.4-1 amd64