root@lenovo777:/home/imperia# apt list | grep gstreamer | grep installed

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

gir1.2-gstreamer-1.0/testing,now 1.10.4-1 amd64 [installed,automatic]
gstreamer1.0-clutter-3.0/testing,now 3.0.24-1 amd64 [installed,automatic]
gstreamer1.0-libav/testing,now 1.12.1-1 amd64 [installed,automatic]
gstreamer1.0-plugins-bad/testing,now 1.10.4-1 amd64 [installed,automatic]
gstreamer1.0-plugins-base/testing,now 1.10.4-1 amd64 [installed,automatic]
gstreamer1.0-plugins-good/testing,now 1.10.4-1 amd64 [installed,automatic]
gstreamer1.0-plugins-ugly/testing,now 1.12.1-1 amd64 [installed,automatic]
gstreamer1.0-pulseaudio/testing,now 1.10.4-1 amd64 [installed,automatic]
gstreamer1.0-x/testing,now 1.10.4-1 amd64 [installed,automatic]
libgstreamer-plugins-bad1.0-0/testing,now 1.10.4-1 amd64 [installed,automatic]
libgstreamer-plugins-base1.0-0/testing,now 1.10.4-1 amd64 [installed,automatic]
libgstreamer1.0-0/testing,now 1.10.4-1 amd64 [installed,automatic]
libreoffice-avmedia-backend-gstreamer/testing,now 1:5.2.7-1 amd64 [installed,automatic]