Normative or informative definitions

[chrisn]

All of the byte stream format specs (such as this one) have ReSpec warnings because they refer to informative definitions in the MSE spec, e.g., "media segment", "initialization segment".

Should we make these definitions normative - e.g., by moving the current section 1.1 Definitions to a new section 2, so it's outside the informative section 1 Introduction? Some of the definitions include normative requirements on implementations.

[tidoust]

+1 to make the definitions normative. On top to the byte stream format specs, the MSE spec itself references these informative definitions from within normative sections and algorithms, which isn't ideal either.

[chrisn]

Resolved in #352