Please see https://gitlab.gnome.org/GNOME/totem/-/issues/641. Totem developer has resolved this issue on the Flatpak version. It will be good that its debian version can be updated too with the solution.
** Bug watch added: gitlab.gnome.org/GNOME/totem/-/issues #641 https://gitlab.gnome.org/GNOME/totem/-/issues/641 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gstreamer1.0 in Ubuntu. https://bugs.launchpad.net/bugs/2091302 Title: "Missing Decoder meta/x-gst-fourcc-mebx" message when trying to play some videos Status in Gstreamer1.0: New Status in gstreamer1.0 package in Ubuntu: Triaged Bug description: When trying to play some videos using Totem, the "Missing Decoder meta/x-gst-fourcc-mebx" message appears. However, the videos start playing fine after clicking the "Search in Software" button. Related upstream ticket: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/2578 To manage notifications about this bug go to: https://bugs.launchpad.net/gstreamer1.0/+bug/2091302/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
