libreoffice: improve codec support

Right now libreoffice cannot play mp4/h264 videos,
which is needed if your $genius professor publishes lectures
as powerpoint with embedded videos.

pkgs/applications/office/libreoffice/default.nix

@@ -409,7 +409,11 @@ in (mkDrv rec {
       librevenge libe-book libmwaw glm ncurses epoxy
       libodfgen CoinMP librdf_rasqal gnome3.adwaita-icon-theme gettext
     ]
-    ++ (with gst_all_1; [ gstreamer gst-plugins-base gst-plugins-good ])
+    ++ (with gst_all_1; [
+      gstreamer
+      gst-plugins-base gst-plugins-good gst-plugins-bad gst-plugins-ugly
+      gst-libav
+    ])
     ++ lib.optional kdeIntegration [ qtbase qtx11extras kcoreaddons kio ];
 
   passthru = {