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Re: WebRTC NV Use Cases

From: Mészáros Mihály <misi@niif.hu>
Date: Mon, 18 Jun 2018 20:48:03 +0200
To: Peter Thatcher <pthatcher@google.com>
Cc: public-webrtc@w3.org
Message-ID: <178c7532-bfe6-b9e2-05a7-7135cf5e199d@niif.hu>
I have referred on packet checksum on udp packets.
If I recall correctly I heard from someone that one of such tool does 
not make udp checksum check to lower the latency.

On 2018. 06. 18. 20:20, Peter Thatcher wrote:
> That's something that already comes with the encoder and transport 
> objects we're proposing.  I'll add this as a use case with those 
> requirements.
>
> I don't think the WG will agree to removing encryption.
>
> What checksum are you referring to?
>
>
>
>
> On Mon, Jun 18, 2018 at 5:23 PM Mészáros Mihály <misi@niif.hu 
> <mailto:misi@niif.hu>> wrote:
>
>     You are right it is low latency audio and video.
>
>     The key how low it could be. Ultra low latency is important for
>     performing arts.
>
>     Requirements what I could think about is to turning off the jitter
>     buffer totally, raw audio codec, (may skip encryption), no packet
>     checksum counting, so to avoid anything that could add any latency.
>
>     Misi
>
>
>     2018-06-18 17:05 keltezéssel, Peter Thatcher írta:
>>     How is it different than an audio call, which allows attempts to
>>     be as low-latency as possible?  Is there a requirement for this
>>     use case that we don't already have?
>>
>>     On Mon, Jun 18, 2018 at 11:43 AM Mészáros Mihály
>>     <bakfitty@gmail.com <mailto:bakfitty@gmail.com>> wrote:
>>
>>         2018-05-09 21:29 keltezéssel, Bernard Aboba írta:
>>>         On June 19-20 the WebRTC WG will be holding a face-to-face meeting in Stockholm, which will focus largely on WebRTC NV.
>>>
>>>         Early on in the discussion, we would like to have a discussion of the use cases that WebRTC NV will address.
>>>
>>>         Since the IETF has already published RFC 7478, we are largely interested in use cases that are either beyond those articulated in RFC 7478, or use cases in the document that somehow can be done better with WebRTC NV than they could with WebRTC 1.0.
>>>
>>>         As with any successful effort, we are looking for volunteers to develop a presentation for the F2F, and perhaps even a document.
>>>
>>         Hi,
>>
>>         Let me add one possible WebRTC Use Case: Ultra Low Latency
>>         audio/ video for musical performances and other performing
>>         arts with WebRTC
>>         Tuned WebRTC stack for ultra low latency.
>>
>>         SW/HW solution that we use actually to solve the use case
>>         e.g.
>>
>>           * http://www.ultragrid.cz/
>>           * https://www.garr.it/en/communities/music-and-art/lola
>>
>>         Read more on tools and use case on https://npapws.org/ :
>>
>>           * https://npapws.org/wp-content/uploads/2017/01/S.Ubik-J.Melnikov-Network-delay-management-2017.pptx
>>           * https://npapws.org/wp-content/uploads/2016/02/Performing-Arts-and-Advanced-Networking.pptx
>>
>>         Regards,
>>         Misi
>>
>
Received on Monday, 18 June 2018 18:48:33 UTC

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