Re: [Cellar] compression libraries in IETF specifications (was Re: [cellar-wg/matroska-specification] deprecate LZO compression (#376))

Adam Roach <adam@nostrum.com> Fri, 22 May 2020 15:12 UTC

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To: Steve Lhomme <slhomme@matroska.org>
Cc: Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com>, Michael Richardson <mcr@sandelman.ca>, Codec Encoding for LossLess Archiving and Realtime transmission <cellar@ietf.org>
References: <cellar-wg/matroska-specification/issues/376@github.com> <24830.1588522227@localhost> <CAKKJt-dxwwWpOHweAFDOEnAvpOi5dnT1c8rtd-NwZYp-AU+Obg@mail.gmail.com> <c32608ad-85c3-b487-3359-0edd77850f12@nostrum.com> <CAOXsMF+4VghQ_AtKQsDaRx3xkTB5h3N7S54WsbYZBXnnt3B4cA@mail.gmail.com>
From: Adam Roach <adam@nostrum.com>
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Subject: Re: [Cellar] compression libraries in IETF specifications (was Re: [cellar-wg/matroska-specification] deprecate LZO compression (#376))
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On 5/22/2020 8:23 AM, Steve Lhomme wrote:
> I hope we don't have to get to this point.


Agreed -- I don't think it would be a good model for CELLAR.

<snip>


> As for patents do we have to put some text that we believe their not
> covered by patents ?


No, and in fact, you shouldn't. The IETF is very careful about not 
taking specific positions about the presence or validity of patents that 
apply to technologies. If someone _does_ know about patents, they're 
either required or strongly encouraged (depending on their relationship 
to the patent in question) to make a disclosure to the IETF, but these 
appear on https://www.ietf.org/ipr rather than in the documents 
themselves. There's no real way to assert "believed to be unencumbered."

/a