[Bug 24027] Define a generic Initialization Data solution for ISO Base Media File Format and/or Common Encryption (will be used by Clear Key)

https://www.w3.org/Bugs/Public/show_bug.cgi?id=24027

--- Comment #3 from David Dorwin <ddorwin@google.com> ---
I like this simple format for the Data portion of the PSSH box. I filed bug
24419 to define a license request format for Clear Key so apps don't need to
parse a PSSH box.

One question for the group: Does it make sense to support specifying multiple
key IDs in the PSSH or should we just rely on the server to translate one to N
(i.e audio and video keys)?
I believe some commercial protection systems do former; are there any that do
the latter? The Clear Key license format will support multiple key ID-key
pairs. Clear Key and this PSSH format should be capable of anything (reasonable
within the context of EME/browsers) that commercial key systems support.


This thread questioning the need for system-specific PSSH boxes includes some
analysis of some existing PSSH formats:
* http://lists.w3.org/Archives/Public/public-html-media/2013May/0017.html
* http://lists.w3.org/Archives/Public/public-html-media/2013May/0018.html
* http://lists.w3.org/Archives/Public/public-html-media/2013May/0025.html

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Received on Tuesday, 28 January 2014 04:33:01 UTC