I'm looking into EME
<https://dvcs.w3.org/hg/html-media/raw-file/default/encrypted-media/encrypted-media.html>
and something I've been asked to investigate is Microsoft's proposed
CDMi interface
<http://www.microsoft.com/playready/documents/default.aspx#CDMSpec>, and
if we could use it in WebKit. The idea is that we would expose a few
common interfaces (see page 12 of the PDF at that link), like
"Cdm_MediaKeys(wchar_t *keySystem)" constructor, "createSession(wchar_t*
type, const unsigned char *initData, const unsigned char *AppData)" to
create a CDM session, etc. The advantage of this would be that we could
create CDMs for each platform and then re-use them in multiple browsers.
Is there any interest in this in WebKit? I'm starting to look through
the code to see how it could be done (presumably implement CDMPrivate /
CDMPrivateInterface to use CDMs matching this interface), but I figured
I'd go to the source and see if anyone has looked into doing this before.
Thanks,
Brendan Long
CableLabs, Inc.
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