support use case: 1 EditorialObject with 1 or more MediaResource(s)

[wivaku]

Scenario A (available in EBUCorePlus): an EditorialObject that is related to another EditorialObject (e.g. regular movie and the director's cut), each EditorialObject has a MediaResource with Essences. It makes sense to have different EditorialObjects as the metadata is different, e.g. different description, year of production.

Scenario B (currently not available): for our project we also have the use case where 1 EditorialObject can have multiple MediaResources (=group of Essences), and each MediaResource has multiple Essences (e.g. a master file and transcoded versions).

Example:

• 1 EditorialObject: e.g. "episode 4", a single object (with 1 house ID)
• multiple MediaResources: e.g. one with and one without a station ident (different durations)

When Programme123 is published on a lineair channel the MediaResource with ident is used, when the same EditorialObject is published online the MediaResource without the ident is used.

The alternative is not preferred: 1 EditorialObject (with 1 MediaResource) which has relationship with other EditorialObject (with 1 MediaResource).

The consequences:

• MediaResource should get duration property
• all duration / timecode related properties and relations should (also) be available for MediaResources. This includes: Subtitles, Captions, Actions, parental guidance, etc.
• for a Segment/Scene: no change is needed, as this can point directly to a specific MediaResource/Essence

It is an editorial decision to determine which use case is more applicable for the two use cases. E.g. for PG-13 vs R-rated version decide if scenario A or B is preferred. The schema can allow both and leave it to the user.

• e.g. explicitly separate them on EditorialObject level: Programme123 (R-rated) is scheduled in the evening and Programme456 (PG-13) is scheduled for the rerun in the morning
• e.g. implicitly separate them, when Programme123 is scheduled in the evening the R-rated MediaResource can be used, if it is scheduled in the morning the PG-13 version is to be used