and what about movies that already have streamdetails? Those will never be updated until playback or manual reload of video info? If we can move stuff to the demuxer stage, fine with me, but we must not overwrite existing streamdetails in order to be able to get rid of the additional video settings (which IMO is a requirement for a desired smartplaylist filter). Also aspect ratio stuff should not be overwritten on each playback which users demand (see PR #3701 ). And no idea about file mode. But current solution is in any case better than what skins currently do (do filename parsing for each single frame). Might be better to move the discussion to the forum.