Re: [Savonet-users] Stopping input.alsa, Howto?

[adiblol <ad...@1t...>]

> I want to use liquidsoap as a darkice/ices replacement for live
> streaming, and I want to shut down/ start up the connection. I read
> (btw. output.icecast docs is missing from the website) in the 
> embedded
> doc, that the icecast just needs to be fallible and will stop when 
> the
> source becomes unavailable.
>
> But this does not work, also unchecking the microphone capture switch
> won't help. So is the only way to stop liquidsoap entirely?

If your input is never silent when you're streaming, use the 
strip_blank operator - 
http://savonet.sourceforge.net/doc-svn/reference.html#strip_blank
Muting the microphone will then make input silent, strip_blank will 
fail, that's what we want.

The Right Way (TM) to do it is to use Telnet (or OSC) for external 
control, for example:

set("server.socket", true)
set("server.socket.path", "stream_control.sock")

stream_enable = interactive.bool("stream_enable", false)
stream = input.alsa(...)
... your audio processing ...
stream = switch(track_sensitive = false, [ (stream_enable, stream), 
({true}, fail()) ])
output.icecast(... , stream)


And use netcat to enable or disable streaming:

echo "var.set stream_enable = true" | nc -U stream_control.sock

echo "var.set stream_enable = false" | nc -U stream_control.sock


I used similar approach on live conference broadcasting, but for 
switching between background music, commentary and speakers. I can share 
source code if you want.


Regards,
adiblol