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Re: Custom and extending CDM to support other DRM systems

From: Glenn Adams <glenn@skynav.com>
Date: Fri, 30 Jan 2015 07:58:11 -0700
Message-ID: <CACQ=j+dE07uhHCckZ9ozvhnDtx7xkC4Q=JNvpVdo3_cUx5iCdw@mail.gmail.com>
To: Emmanuel Poitier <emmanuel.poitier@enman.fr>
Cc: "public-html-media@w3.org" <public-html-media@w3.org>
On Fri, Jan 30, 2015 at 7:49 AM, Emmanuel Poitier <emmanuel.poitier@enman.fr
> wrote:

>  All,
> I am currently looking after the information on how to extend the CDM to
> support other DRM systems, which is nowadays fixed and hardcoded for each
> browsers (IE with PlayReady, Chrome with Widevine, Safari with FairPlay).
> It would be nice to ensure the EME spec does provide information and also
> how browsers would support that in an agnostic manner to ensure a non
> fragmented market where the user does want to play a protected video
> content whatever the browser he is using.

I doubt if anything has changed on this front, but this type of
specification was ruled out of scope for EME. EME uses the term and concept
"CDM" only in a notional manner, and does not specify any concrete
interface to such a component.

It is likely that interface and any mechanism for adding/extending UA
supplied CDMs will remain UA specific, that is, until some organization
steps forward to standardize it (assuming UA vendors are willing to do
that... a dubitable proposition).

> Thanks in advance for any information and help you may provide.
> Best regards,
> --
> Emmanuel Poitier - Chief Executive Officer (CEO)
> Enman
>   Telephone: +33 (0)2 54 67 15 38
>  Mobile: +33 (0)780 381 124  Email: emmanuel.poitier@enman.fr
>  Web site:http://enman.fr
Received on Friday, 30 January 2015 14:58:58 UTC

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