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Re: HTML5 Last Call May 2011 & DASH/Adaptive Streaming

From: Mark Watson <watsonm@netflix.com>
Date: Tue, 15 Feb 2011 22:03:01 -0800
To: Philippe Le Hegaret <plh@w3.org>
CC: "Ali C. Begen (abegen)" <abegen@cisco.com>, Silvia Pfeiffer <silviapfeiffer1@gmail.com>, Glenn Adams <glenn@skynav.com>, Jean-Claude Dufourd <jean-claude.dufourd@telecom-paristech.fr>, "Richard Maunder (rmaunder)" <rmaunder@cisco.com>, "public-web-and-tv@w3.org" <public-web-and-tv@w3.org>
Message-ID: <D429C45C-785B-43F9-A0FD-541CE7013118@netflix.com>

On Feb 15, 2011, at 4:59 PM, Philippe Le Hegaret wrote:

> On Tue, 2011-02-15 at 18:40 -0500, Ali C. Begen (abegen) wrote:
>> I think folks need to agree on the container format not the codec type. A good container format will be good for several codecs that exist today and will yet to come. 
> My understanding is that the IP issues surrounding the codec types are
> also surrounding the container formats and the streaming technologies.

IANAL but I don't think that is quite true. To my knowledge there are no IP issues with the ISO Base Media File Format (ISO/IEC 14496-12) which is one of the more widely used container formats.

For "streaming technologies", it is my hope that DASH will be Royalty-Free and some companies have already stated that intention in respect of their IPR.

This is a very different state of affairs from codecs such as H.264, for example.


> So, I'd be surprised if any agreement was reached within the HTML
> Working Group on those topics. I can't imagine a different conclusion
> that the H.264/Theora discussion at this point. In any case, as Glenn
> alluded to, HTML has been technology neutral since the beginning. Unless
> I'm mistaken, we don't require implementations to support a specific
> image format.
> Philippe
Received on Wednesday, 16 February 2011 06:06:51 UTC

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