Re: [MBONED] [blink-dev] Intent to Prototype: Multicast Receive API

["Holland, Jake" <[e-mail]>]

Hi Gyan,

it’s not currently expected to make it into the upstream, as Google said they’re not interested.  However, an implementation is available for experimenting with.

I’ve been maintaining a fork that implements the proposed api (but does not have the authentication functionality implemented):
https://github.com/GrumpyOldTroll/chromium_fork

I’ve been keeping it approximately up to date with chromium releases.  There’s .deb binaries linked from the repo that you can experiment with, and there’s an example page that uses the api at https://grumpyoldtroll.github.io/wicg-multicast-receiver-api/demo-multicast-receive-api.html.

I’m looking into alternatives that might have a better chance at moving forward and getting adoption based on the feedback we got so far, and as soon as one of those is operational I’ll probably stop maintaining that fork and put up a note to the new thing, but for now that’s what I’ve got.

The primary discussion venue for this is the W3C multicast community group.  You can get a rough idea of what we’ve been thinking from the meeting logs and videos:
https://github.com/w3c/multicast-cg/tree/main/meetings

HTH,
Jake

From: Gyan Mishra <[e-mail]>
Date: Tue,2022-02-22 at 8:15 PM
To: "Holland, Jake" <[e-mail]>, MBONED WG <[e-mail]>, Toerless Eckert <[e-mail]>
Subject: Re: [blink-dev] Intent to Prototype: Multicast Receive API


Dear Jake, Toerless and MBONED

Does anyone know the status of this project to allow Chrome browser to play multicast natively.

The issue was that NPAPI plug-in is not supported and so multicast cannot play natively.

So some dev work was needed to get this fixed and working for MBONE community at large.

https://groups.google.com/a/chromium.org/g/net-dev/c/TjbMyPKuRHs?pli=1<https://urldefense.com/v3/__https:/groups.google.com/a/chromium.org/g/net-dev/c/TjbMyPKuRHs?pli=1__;!!GjvTz_vk!DhNFIJSjLlBTt2ff1aIHLB55Hz9D_vR8WG3b2uPJ37dr9hNIU4dghgNFRnRSVq8$>


Copy/paste from link above.

Moving blink-dev@ to BCC and forwarding this to the net-dev@ mailing list.

This work proposes adding support for new network protocols to Chromium, which has security and privacy consequences. net-dev@ is the mailing list where this conversation should start. From private communications with the proposers of this new API their primary goal at this stage of development is to land an experimental implementation within Chromium in order to facilitate iteration and evaluation of the technology.
Reilly Grant | Software Engineer | [e-mail] | Google Chrome<https://urldefense.com/v3/__https:/www.google.com/chrome__;!!GjvTz_vk!DhNFIJSjLlBTt2ff1aIHLB55Hz9D_vR8WG3b2uPJ37dr9hNIU4dghgNFJ2r6e6c$>


On Thu, Feb 4, 2021 at 1:31 PM 'Holland, Jake' via blink-dev <[e-mail]> wrote:
Contact emails
[e-mail], [e-mail]


Explainer

https://github.com/GrumpyOldTroll/wicg-multicast-receiver-api/blob/master/explainer.md<https://urldefense.com/v3/__https:/github.com/GrumpyOldTroll/wicg-multicast-receiver-api/blob/master/explainer.md__;!!GjvTz_vk!DhNFIJSjLlBTt2ff1aIHLB55Hz9D_vR8WG3b2uPJ37dr9hNIU4dghgNFmW_6mkM$>


Specification

TBD: API spec and design document (currently just entering Intent to Prototype).

IETF standards-track docs (all presently works in progress):
- draft-ietf-mboned-ambi<https://urldefense.com/v3/__http:/draft-ietf-mboned-ambi/__;!!GjvTz_vk!DhNFIJSjLlBTt2ff1aIHLB55Hz9D_vR8WG3b2uPJ37dr9hNIU4dghgNFhiTQ8xc$>
- draft-ietf-mboned-dorms<https://urldefense.com/v3/__http:/draft-ietf-mboned-dorms/__;!!GjvTz_vk!DhNFIJSjLlBTt2ff1aIHLB55Hz9D_vR8WG3b2uPJ37dr9hNIU4dghgNFpBPIpck$>
- draft-ietf-mboned-mnat<https://urldefense.com/v3/__http:/draft-ietf-mboned-mnat/__;!!GjvTz_vk!DhNFIJSjLlBTt2ff1aIHLB55Hz9D_vR8WG3b2uPJ37dr9hNIU4dghgNFEzNi_XI$>
- draft-ietf-mboned-cbacc<https://urldefense.com/v3/__http:/draft-ietf-mboned-cbacc/__;!!GjvTz_vk!DhNFIJSjLlBTt2ff1aIHLB55Hz9D_vR8WG3b2uPJ37dr9hNIU4dghgNF9SrvDFo$>
(There will be integrated components prototyped in the browser feature based an appropriate subset of the above specs before origin trials begin.)


Summary

Subscribe to source-specific multicast IP channels and receive UDP payloads in web applications.
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[Image removed by sender.]<https://urldefense.com/v3/__http:/www.verizon.com/__;!!GjvTz_vk!DhNFIJSjLlBTt2ff1aIHLB55Hz9D_vR8WG3b2uPJ37dr9hNIU4dghgNFEOI0wLY$>

Gyan Mishra

Network Solutions Architect

Email [e-mail]<mailto:[e-mail]>

M 301 502-1347