Describe generically compliant processors that support only external …

[skynavga]

…profiles (#683).

Closes #683.

[nigelmegitt]

This looks fine to me but on reviewing, I see that on lines 2117 and 2136 (of this pull request branch) there is unchanged text: "A TTML content processor is a conformant TTML [transformation|presentation] processor"... but that we do not qualify the version of TTML that it applies to. Since the definitions include both DFXP conformance and TTML2 conformance, this is an extension relative to TTML1.

Suggestion: as part of this pull request we change that wording to "A TTML content processor is a conformant TTML2 [transformation|presentation] processor", i.e. introduce the digit 2 to the conformance claim requirement.

[skynavga]

@nigelmegitt No. It applies to any/all versions of TTML, including TTML1.

[skynavga]

@nigelmegitt please re-check

[css-meeting-bot]

The Working Group just discussed Describe generically compliant processors that support only external … ttml2#755, and agreed to the following:

• SUMMARY: Review to continue offline

The full IRC log of that discussion

<nigel> Topic: Describe generically compliant processors that support only external … ttml2#755
<nigel> github: https://github.com//pull/755
<nigel> Glenn: It's tricky - in some places we have to use TTML without qualification and in others
<nigel> .. it is relevant to qualify as TTML2.
<nigel> Nigel: Yes!
<nigel> .. I need a bit of offline time to check through that but I think it's fine.
<nigel> SUMMARY: Review to continue offline

[nigelmegitt]

Looks like this resolves #683.