[Galene] Re: Whole meeting as a youtube livestream?

[Tim Panton <tim@pi.pe>]

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> On 1 Jan 2024, at 01:38, Juliusz Chroboczek <jch@irif.fr> wrote:
> 
>>> I was thinking about streaming a complete meeting as a livestream on youtube.
> 
>> Just catch the window of your navigator with OBS and you are Done
> 
> Right.
> 
> Galene does not do any multiplexing: when a meeting consists of multiple
> streams, then all of the streams are sent to all participants.
> 
> Youtube requires a single stream, so at some point somebody needs to
> decode the videos, build a mosaic view, and then recode the videos.  It
> cannot be the Galene server, since the server does not do any recoding
> (that's what makes it cheap and fast).  The best place is the browser,
> which already knows how to decode WebRTC streams.
> 
> So rendering in the browser and recoding using OBS seems like a perfectly
> fine solution.  Another solution would be to perform the recoding in the
> browser itself, but I'm not sure how easy it would be.

There is a sort of halfway house I’ve done where you screen capture (ie mix) a div in the ‘host’ browser and send that as a webRTC stream to a local recording process (in my case pipe and ffmpeg - but it could be a gstreamer pipeline).

This works pretty well - 
https://github.com/pipe/rdv-show/blob/4793900b6d661153da1962d0a694ee71fbfdfccb/rdv-show/js/host.js#L64
rdv-show/rdv-show/js/host.js at 4793900b6d661153da1962d0a694ee71fbfdfccb · pipe/rdv-show
github.com
 

I’ve played with media stream recorder, but then you need to have a web server to capture and store the media file chunks.

Happy to help if that’s useful.


T.

> 
> Happy new year!
> 
> -- Juliusz
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