Support for C2PA

[tormodv]

The C2PA standard enables the addition of key metadata to a secure manifest stored within the video, picture, or audio file itself. This manifest is encrypted and will provide secure metadata about the provenance of the metadata contained within the manifest. Each edit operation will add another layer to the manifest. Any supported recording or editing equipment will do this.

It is essential to be able to transfer the embedded metadata to the company's media archive system. As I can see, we have relatively good coverage of the necessary data fields for this operation.

[tormodv]

IPTC also support the standard.

https://iptc.org/verified-news-publishers-list/

[JuergenGrupp]

Also a topic in #311