#50: Jack reset not working properly
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Reporter: balbinus | Owner: admin
Type: Bugs | Status: reopened
Priority: 2 | Milestone:
Component: Liquidsoap | Version: 0.3.6+svn
Resolution: | Keywords:
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Changes (by toots):
* summary: Liquidsoap + Jack => Jack reset not working properly
Old description:
> Liquidsoap has definitely a big problem handling Jack input (I've never
> really tested the output). It keeps dropping samples from the ringbuffer
> (usually, 1 second or more, with my specific settings). Sam's patch made
> the issue a little less problematic, since now it happens only once a few
> hours.
>
> But the problem is that now, when Jack begins dropping, no matter how
> many times we attempt to reconnect to the server (and to clear our
> ringbuffers when doing so), Liquidsoap will continue dropping frames
> forever, looping between dropping 50k+ samples and reconnecting to Jack.
>
> I can see no logical reason to this behavior from Jack's point of view.
>
> There is absolutely no reason for Jack to send us more data than we need,
> since it can't go "faster than the music".
>
> However, there's one reason for overfilled buffers: synchronicity being
> lost between Rivendell (Jack's feeder here), Jack and Liquidsoap. This
> means we don't get the data at a continuous rate. Nevertheless, we get
> *all* the data that we need, and no more.
>
> I think we could rule out this problem by adding some buffer between
> input.jack() and the rest of Liquidsoap, so that both can work at
> "different" paces. More generally, my gut feeling is that Liquidsoap's
> components aren't independent enough with respect to each other. I have
> experienced problems with Jack input when my DSL connection went down two
> days ago... Though there might be no cause / consequence relationship
> between the two events, they seem to closely related not to be linked.
> Furthermore, we've seen dozens of other cases where Liquidsoap went nuts
> because of one component failing.
New description:
Jack resets do not seem to work properly on some situations.
Comment:
Hi !
I've renamed this ticket.
Could you give more details on your script ? In particular the path from
jack to output.icecast ?
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Ticket URL: <http://savonet.rastageeks.org/ticket/50#comment:6>
Savonet <http://savonet.rastageeks.org/>
Let's program our stream !
