Technology

I'm not the original commenter, but in Germany, you can record in public, but can not record individuals specifically. People walking past in the background while you record something else is fine. Recording someone specifically is not.

That's the baseline, at least. Exceptions may apply (public figures, public interest, etc).

https://en.wikipedia.org/wiki/Personality_rights#Germany

A succinct statement of the German law can be found in the following judicial statement from the Marlene Dietrich case: the general right of personality has been recognised in the case law of the German Federal Court of Justice since 1954 as a basic right constitutionally guaranteed by Articles 1 and 2 of the Basic Law and at the same time as an "other right" protected in civil law under § 823 (1) of the BGB (established case law since BGHZ 13, 334, 338—readers' letters). It guarantees as against all the world the protection of human dignity and the right to free development of the personality. Special forms of manifestation of the general right of personality are the right to one's own picture (§§ 22 ff. of the KUG [de]) and the right to one's name (§ 12 of the BGB). They guarantee protection of the personality for the sphere regulated by them.