Icecast - Sep 2023 - When switching from source client to fallback and back glitches listen client

Hi,

I've noticed that when a source-client disconnects from the mountpoint 
and the mountpoint switches to its specified fallback-client, some 
listen-clients disconnect, or close, or otherwise glitch. Same thing 
when a remote source-client connects, dropping the fallback--the 
listen-client can glitch.

The fallback is an mp3 encoded at the same sample rate and bitrate as 
the remote source-client.

It shouldn't glitch stream players just because it swaps sources, should it?

Thank you!

-- 
Jack Elliott
Director of Classical Music Programming
High Desert Community Radio
KPOV Bend, Oregon

On Sep 16, 2023, at 13:58, Jack Elliott <that.jack.elliott at gmail.com>
wrote:
> I've noticed that when a source-client disconnects from the mountpoint
and the mountpoint switches to its specified fallback-client, some
listen-clients disconnect, or close, or otherwise glitch. Same thing when a
remote source-client connects, dropping the fallback--the listen-client can
glitch.
> 
> The fallback is an mp3 encoded at the same sample rate and bitrate as the
remote source-client.
> 
> It shouldn't glitch stream players just because it swaps sources,
should it?
I suspect that what is going on is that the two streams (original and fallback)
are not precisely synchronized, which means that the decoder will likely lose
framing when switching to the fallback bitstream and hence mute or otherwise
glitch while reacquiring same. I?m pretty sure that this is a consequence of the
basic architecture of the Icecast system.

Cheers!


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