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SMPTE / st2067-40

SMPTE ST 2067-40
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Creator, Issuer and ContentVersion should not be required #10

Closed palemieux closed 4 years ago

palemieux commented 4 years ago

The specification requires the Creator and Issuer elements and at least one ContentVersion element to be present.

Past experience has demonstrated that constraints these elements are best left to delivery specifications. Merely requiring their presence without providing guidance on their contents results in users/implementers filling-in meaningless values.

Suggest removings the requirements on Creator, Issuer and ContentVersion elements, or providing specific guidance/requirements on expected values.

dtatut commented 4 years ago

@palemieux : In my experience the Creator and Issuer are useful elements. The one that causes me trouble is the ContentVersion when it's a randomly generated ID. In that specific case the ID is useless (as it does not relate to anything).

So I'd like to suggest that ContentVersion should not be used if there is no meaningful ID to put in there. Pretty much the same logic as with Mastering Display information. Either the information should be meaningful, or absent, but definitely not random.

fschleich commented 4 years ago

I second that Creator and Issuer are very useful elements and I don't see any confusion surrounding them. I'm happy to make ContentVersion optional though.

palemieux commented 4 years ago

Discussed on 2020528:

hnlocher commented 4 years ago

Clause 7.6 suppressed in 2020-05-29 draft.