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Re: [rtcweb] ~"I'd love it if patents evaporated...If not now, when"

Justin Uberti <juberti@google.com> Thu, 14 November 2013 01:43 UTC

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From: Justin Uberti <juberti@google.com>
Date: Wed, 13 Nov 2013 17:43:06 -0800
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To: cowwoc <cowwoc@bbs.darktech.org>
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Subject: Re: [rtcweb] ~"I'd love it if patents evaporated...If not now, when"
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On Wed, Nov 13, 2013 at 12:46 PM, cowwoc <cowwoc@bbs.darktech.org> wrote:

> On 13/11/2013 3:02 PM, Harald Alvestrand wrote:
>
>> On 11/13/2013 05:55 PM, John Leslie wrote:
>>
>>>     Both H.264 and VP8 deserve "SHOULD implement" status. Neither,
>>> IMHO, will achieve consensus for "MUST implement" status. Yes, this
>>> is a sorry state to find ourselves in. But the marketplace has
>>> sorted out much worse problems in my memory.
>>>
>>>     And I claim that both camps are actually more likely to implement
>>> (or allow extensions for) the other side's codec if it is _not_ MTI,
>>> simply because they can back out at the first sign of lawyers.
>>>
>>>     I will not go into any details about how VP8 endpoints might talk
>>> to H.264 endpoints, but I'm _very_ confident ways will be found if
>>> we actually _publish_ an RFC saying both are "SHOULD implement".
>>>
>> I don't know if many noticed it, but one reason for my fiddling with
>> devices to show Hangouts working on stage at the meeting was to show
>> that transcoding is in fact working in real services that people are
>> using on a day-to-day basis.
>>
>> Sure, it's not optimal. In fact, it hurts. But it's not the end of the
>> world either.
>>
>
> So... we're throwing P2P out of WebRTC?
>
> If you mandate H.261 as MTI, big business can still do transcoding and the
> rest of us can use H.261. Small business shouldn't have to choose between
> transcoding and dropping the call.
>
>
Regarding H.261: Consider the following clip, encoded at 256 kbps using
H.261.
http://www-mobile.ecs.soton.ac.uk/peter/h261/missa.norm.h261.mpg

Do you think this quality (QCIF, grayscale, PSNR of 38) is acceptable for
your users?

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