[Bug 21741] can track elements be treated seperately?

https://www.w3.org/Bugs/Public/show_bug.cgi?id=21741

Glenn Adams <glenn@skynav.com> changed:

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                 CC|                            |glenn@skynav.com

--- Comment #1 from Glenn Adams <glenn@skynav.com> ---
So, if I understand your description, one has the following options:

(1) a/v tracks are encrypted and some CDM-1 would decrypt
(2) t/t tracks may be:
    a. included in the container containing a/v tracks, and those t/t are also
encrypted according to CDM-1
    b. included in the container containing a/v tracks, but those t/t are not
encrypted
    c. not included in the a/v container, and encrypted using an encryption
according to CDM-2
    d. not included in the a/v container, and not encrypted

You are expressing concern about support for (2)c, yes? How likely is it that
(2)c would apply instead of 2(d)? I would not expect producers and distributors
of accessibility enhancements to use encryption at all, especially when they
are a 3rd party, but I agree it can't be ruled out. Is my interpretation
correct?

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Received on Thursday, 18 April 2013 19:37:54 UTC