[rtcweb] Status of realtime/live streaming to large audiences

Basil Mohamed Gohar <basilgohar@librevideo.org> Thu, 15 August 2013 15:11 UTC

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Date: Thu, 15 Aug 2013 11:10:24 -0400
From: Basil Mohamed Gohar <basilgohar@librevideo.org>
Organization: Libre Video
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Subject: [rtcweb] Status of realtime/live streaming to large audiences
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This question may be naïve relative to others' knowledge to how rtcweb
is intended to work, but I would like to bring up the issue so that a
discussion exists on this list exists that unambiguously addresses the
question, and can be referred to at a later date when the topic comes-up
elsewhere.  My apologies if this, too, has already been done!

My question involves the usage of rtcweb in single-broadcaster/multiple
listener scenario, such as streaming a real-time/live event that
includes either audio or audio/video content, with a large audience.
Imagine, for example, a setup that is related to distance learning, with
one teacher and many students.

I know that theoretically, rtcweb should support this, but I wanted to
make sure that such a setup is actually explicitly allowed and even
designed for, because it is a usage case that is currently unavailable
to a large portion of users that would like to use a free software-only

The previous best case was Icecast, but that is not meant for
low-latency streaming by design.  rtcweb, I understand, is exactly for that.

With that out of the way, I am also interested in knowing what solution
implementing rtcweb already exist that can manage and/or handle this
usage scenario (one broadcaster, many listeners).  The previous
solutions seem to use almost exclusively a Flash client using rtsp-based
solution.  The quality is variable and late packets are usually dropped
so as to ensure the user is only seeing real-time data, even at degraded
quality momentarily.

I am interested in further discussion on this topic, so I welcome any
insight anyone may have into using rtcweb in this manner.

Thanks for indulging me!
Libre Video