Cannot play a certain file format

File formats displayed by Totem depend on GStreamer plugins. The only supported version of Totem, available on Flathub, should have support for all the more common, and some niche, video and audio formats.

If you run into any video files that cannot be played in the supported version of Totem available on Flathub, then file a bug against the application, so support for the necessary formats can be added.