Re: [rtcweb] The MTI Codec Questions (what to ask and how to ask them)

Iñaki Baz Castillo <ibc@aliax.net> Fri, 07 November 2014 16:09 UTC

Return-Path: <ibc@aliax.net>
X-Original-To: rtcweb@ietfa.amsl.com
Delivered-To: rtcweb@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1E2921A6F5B for <rtcweb@ietfa.amsl.com>; Fri, 7 Nov 2014 08:09:19 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.677
X-Spam-Level:
X-Spam-Status: No, score=-1.677 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FM_FORGED_GMAIL=0.622, HTML_MESSAGE=0.001, MIME_8BIT_HEADER=0.3, RCVD_IN_DNSWL_LOW=-0.7] autolearn=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9-uV9dv6rtSs for <rtcweb@ietfa.amsl.com>; Fri, 7 Nov 2014 08:09:16 -0800 (PST)
Received: from mail-qc0-f169.google.com (mail-qc0-f169.google.com [209.85.216.169]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 226A41A8838 for <rtcweb@ietf.org>; Fri, 7 Nov 2014 08:09:14 -0800 (PST)
Received: by mail-qc0-f169.google.com with SMTP id i17so2785740qcy.14 for <rtcweb@ietf.org>; Fri, 07 Nov 2014 08:09:13 -0800 (PST)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=9DstdKKY3xntjvghshcEqbOw55wx/znHduNh52R9mOc=; b=SYaTNRjRYXHO99qFqmfiaWOqn5AhtfR+sHIWfCYMxM/1sHdRjnp5vdqDVmzKgMlw/J 7E0AaDz7/7T1bhEbxbEqPwjexEy2kaA5EDsA/x7RJpKbxH3pvgSlOXHvyKE4sPuNR/kf ZgO29mJ5HA8zUOyScepBYoXpfeKpePt6uDh70aQur23wxQLJ7mHj0QTofZjk7PjkkHEf 0hHxL+RQTiKzMDZbyFHRF1j0s5VNmp5n1+Bk/RcApXJexIed9dNzJdtFHZDYesvclFC6 qMevuTj8g0bcE3iZzlFoHiOykM/2HZDmhv0yc77wwz+YEAlQgEsXIg7YThUXmlNoZlYF E8eA==
X-Gm-Message-State: ALoCoQmK15B1PiVqyQ/XNK+6sCTT3qmKa4jHsBQ0u1KAwWpAQAJ7/IMuws6dm5HGSgWlsj3Avq+p
MIME-Version: 1.0
X-Received: by 10.229.209.136 with SMTP id gg8mr12470207qcb.16.1415376553024; Fri, 07 Nov 2014 08:09:13 -0800 (PST)
Received: by 10.96.69.200 with HTTP; Fri, 7 Nov 2014 08:09:12 -0800 (PST)
Received: by 10.96.69.200 with HTTP; Fri, 7 Nov 2014 08:09:12 -0800 (PST)
In-Reply-To: <545CEDFD.3020805@bbs.darktech.org>
References: <7594FB04B1934943A5C02806D1A2204B1D4E50D8@ESESSMB209.ericsson.se> <E78E8017-A08F-4061-B2BA-FB3900B1C681@phonefromhere.com> <CAGTXFp-9AtQakpLt+O_eNRNr71uyh26igLb-_56LDUTQ+g5iJg@mail.gmail.com> <545A6281.4050601@gmail.com> <EC89515C-4FD9-4C08-A80A-42B36004A516@phonefromhere.com> <545A7E0B.4070505@gmail.com> <C17546AB-1419-49C2-A634-49296C122347@phonefromhere.com> <CABcZeBOWyy3hagGpjMzmbPJjCaBdUjUUs5zat-t7h75Xa+Fzkg@mail.gmail.com> <20141106182937.GH8092@hex.shelbyville.oz> <CABcZeBMAba+AdsnekV36nWLpz91pUYsh5uvRVtHzPvnFSHvsUg@mail.gmail.com> <20141106215910.GJ8092@hex.shelbyville.oz> <BBE9739C2C302046BD34B42713A1E2A22E379AFF@ESESSMB105.ericsson.se> <545CEDFD.3020805@bbs.darktech.org>
Date: Fri, 07 Nov 2014 17:09:12 +0100
Message-ID: <CALiegf=qPe8m+y5i9AL49SaU2YQk0EpqDL=L5nhmQpQiS27Z8A@mail.gmail.com>
From: Iñaki Baz Castillo <ibc@aliax.net>
To: cowwoc <cowwoc@bbs.darktech.org>
Content-Type: multipart/alternative; boundary="001a113390ccaabafa0507470867"
Archived-At: http://mailarchive.ietf.org/arch/msg/rtcweb/5x9GlgvonegPlcUrIkUBsa4jXjs
Cc: rtcweb@ietf.org
Subject: Re: [rtcweb] The MTI Codec Questions (what to ask and how to ask them)
X-BeenThere: rtcweb@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: Real-Time Communication in WEB-browsers working group list <rtcweb.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/rtcweb/>
List-Post: <mailto:rtcweb@ietf.org>
List-Help: <mailto:rtcweb-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 07 Nov 2014 16:09:20 -0000

If "things will improve" means a non royalty-polluted codec then I agree.
Until that no MTI codec, because WebRTC is for the web, not for the
Industry.
On 7 Nov 2014 17:07, "cowwoc" <cowwoc@bbs.darktech.org> wrote:

> Or design based on the de-facto situation (no MTI) until the situation
> changes to the point where we can revisit this issue.
>
> Hopefully things will improve. But if they don't... we shouldn't wait
> forever.
>
> Gili
>
> On 07/11/2014 10:31 AM, Bo Burman wrote:
>
>> I think, as was also said by others, we are moving in circles without
>> very much progress. What seems to be the most pressing issue, the licensing
>> landscape, has changed somewhat since last time we tried to decide on video
>> MTI, but there are still major objections to that landscape and it is also
>> still changing. While I do think we need an MTI video codec, I believe we
>> would make better use of our time postponing the decision a bit longer, at
>> least until VCB is fully settled in MPEG.
>>
>> /Bo
>>
>>  -----Original Message-----
>>> From: rtcweb [mailto:rtcweb-bounces@ietf.org] On Behalf Of Ron
>>> Sent: den 6 november 2014 22:59
>>> To: rtcweb@ietf.org
>>> Subject: Re: [rtcweb] The MTI Codec Questions (what to ask and how to
>>> ask them)
>>>
>>> On Thu, Nov 06, 2014 at 01:08:21PM -0800, Eric Rescorla wrote:
>>>
>>>> On Thu, Nov 6, 2014 at 10:29 AM, Ron <ron@debian.org> wrote:
>>>>
>>>>  On Wed, Nov 05, 2014 at 09:14:27PM -0800, Eric Rescorla wrote:
>>>>>
>>>>>> On Wed, Nov 5, 2014 at 2:39 PM, tim panton <tim@phonefromhere.com>
>>>>>>
>>>>> wrote:
>>>>>
>>>>>> Agreed, the worst aspect of any adoption of H264 is that it
>>>>>>> makes it significantly more difficult to produce a custom
>>>>>>> ’secure’ build of firefox that has been independently reviewed
>>>>>>> for special use-cases (press, humanitarian workers etc).
>>>>>>>
>>>>>> Why is this true? We currently build OpenH264 and then send the
>>>>>> binary to Cisco but keep a hash for comparison. Why is it more
>>>>>> difficult to review this?
>>>>>>
>>>>> Is Cisco offering to ship such binaries for anyone who wants to
>>>>> build them
>>>>>
>>>> I think Mo has answered this.
>>>>
>>>>  , or is this a special privilege they offered to you to win your
>>>>> support for their scheme?
>>>>>
>>>> It certainly wasn't this. When we agreed to do this, the intent was to
>>>> do reproducible builds, but then as we got closer to ship engineering
>>>> realities intervened and it became clear that it was easier for
>>>> Mozilla to do the builds in the interim, but that decision was only
>>>> made recently and we would prefer to have reproducible builds, as Mo
>>>> says..
>>>>
>>> Right, that was sort of the point I elaborated on in my reply to Mo,
>>> there's a very real gulf between how we might like to
>>> imagine things could work, and what's actually going to happen or be
>>> possible in the real world that we actually have to
>>> work within.
>>>
>>> It's perfectly fine for Mozilla and Cisco to take shortcuts that they
>>> agree serves them both well to make things happen in
>>> a timely way.
>>>
>>> Where that leaves everyone else is the question I was asking here.
>>> This isn't a shortcut that would seem to scale well to other users, or
>>> one that seems likely to cease to be "necessary" any
>>> time soon.
>>>
>>> (I believe I already noted the difficulty of doing this when it was
>>> first proposed, so I'm definitely not surprised at it
>>> remaining just a promise at this stage)
>>>
>>> I've seen enough engineering realities to be pretty sure that any
>>> untested and novel scheme isn't going to end exactly
>>> how the people who pitched it said it would.  Mozilla's experience with
>>> this will definitely be an interesting datapoint, but
>>> it's not clear how well that will extrapolate to the more general case
>>> or the users that Tim indicated concern for yet.
>>>
>>>    Ron
>>>
>>>
>>> _______________________________________________
>>> rtcweb mailing list
>>> rtcweb@ietf.org
>>> https://www.ietf.org/mailman/listinfo/rtcweb
>>>
>> _______________________________________________
>> rtcweb mailing list
>> rtcweb@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtcweb
>>
>
> _______________________________________________
> rtcweb mailing list
> rtcweb@ietf.org
> https://www.ietf.org/mailman/listinfo/rtcweb
>