[Bug 21155] EME should be explicit about its relationship with Web Platform APIs that allow video frames and audio samples to be extracted from an HTMLMediaElement

https://www.w3.org/Bugs/Public/show_bug.cgi?id=21155

Fred Andrews <fredandw@live.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fredandw@live.com
            Summary|EME should be explicit      |EME should be explicit
                   |about its relationship with |about its relationship with
                   |Web Platform APIs that      |Web Platform APIs that
                   |allow video frames are      |allow video frames and
                   |audio samples to be         |audio samples to be
                   |extracted from an           |extracted from an
                   |HTMLMediaElement            |HTMLMediaElement

--- Comment #1 from Fred Andrews <fredandw@live.com> ---
Standards reflect consensus among some web browser implementers and thus have
no standing or ability to impose restrictions that might advantage the business
interests of some content authors.  The EME task force has already declared
that the implications of the operation of the CDM are out of scope as is the
level of protection that the CDM provides.

Some expected use cases for the EME do suggest that on some proprietary stacks
that the decoded output of some CDMs may not be available and thus such APIs
could not in general be depended on.  I would not that the diagram in the EME
specifications notes that decoded frames may, or may not, be returned to the
UA.

Standards reflect consensus among web browser implementers, which may include
users, and thus have no standing or ability to impose restrictions that might
protect the business interests of some content authors. The implications of an
attempt to do so should be explored.  Further, attempts to fingerprint the UA
in order to restrict content delivery based on detected capabilities could
restrict normal UA operations, such as UA spoofing, and the implications of
attempts to so should be explored.

The EME Impact document hosted at the WHATWG Wiki is happy to host such
analysis, and a note has been added about your concern, see:
http://wiki.whatwg.org/wiki/Encrypted_Media_Extensions_Impact

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Received on Thursday, 28 February 2013 21:26:38 UTC