[Bug 19208] New: Keymessage event not needed when Key System already has Key

https://www.w3.org/Bugs/Public/show_bug.cgi?id=19208

           Summary: Keymessage event not needed when Key System already
                    has Key
           Product: HTML WG
           Version: unspecified
          Platform: PC
        OS/Version: Windows NT
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Encrypted Media Extensions
        AssignedTo: adrianba@microsoft.com
        ReportedBy: johnsim@microsoft.com
         QAContact: public-html-bugzilla@w3.org
                CC: mike@w3.org, public-html-media@w3.org


If a session is created activating a Key System CDM and the key storage for
that Key System already contains the key associated with the Key ID, then there
is no need for the keymessage event. 

If this is correct, this is inconsistent with the current draft of the
specification. 

The proposal would be to add the following sentence to the last paragraph of
the ISOBMFF Container Guidelines:

Likewise, if createSession() activates a Key System CDM and the key storage for
that Key System already contains the key associated with the Key ID, then there
is no need for the CDM to generate a keymessage event.

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Received on Tuesday, 2 October 2012 14:33:03 UTC