[pulseaudio-discuss] [PATCH v2 2/2] switch-on-port-available: deactivate direction when the no ports are available for that direction

Tanu Kaskinen tanuk at iki.fi
Sun Jan 7 19:32:29 UTC 2018

On Thu, 2018-01-04 at 20:54 +0100, Georg Chini wrote:
> On 04.01.2018 14:35, Tanu Kaskinen wrote:
> > On Thu, 2018-01-04 at 08:52 +0100, Georg Chini wrote:
> > > On 03.01.2018 14:51, Tanu Kaskinen wrote:
> > > > Your proposal sounds good, if I understand it correctly. I don't think
> > > > module-rescue-streams needs or should be involved, however.
> > > 
> > > Don't we still need module-rescue-stream when a non-default HDMI
> > > sink is forcefully suspended? Or do you want to move the rescue
> > > functionality to the core?
> > 
> > I didn't think of this case. Moving rescuing to the core would make
> > sense to me, but for now I think it's fine to handle this in module-
> > rescue-streams. I think the rescue trigger should be a sink becoming
> > unavailable rather than suspended, though. If we were to use suspending
> > as the trigger, we'd anyway only do the move when the suspend cause is
> > PA_SUSPEND_UNAVAILABLE, and I don't see why we shouldn't rescue streams
> > that are left on unavailable sinks that are not suspended.
> > 
> I don't understand the argument. module-rescue-stream currently
> rescues any stream if the underlying sink becomes unavailable, so
> streams that are left on unavailable sinks that are not suspended
> are already rescued.
> PA_SUSPEND_UNAVAILABLE would only be an additional trigger for
> the case that the sink is not removed. Your current patches change
> the state of the sink to unavailable without removing it.
> I do not want to rely on another module like switch-on-port-available
> to remove the sink. I see three possible ways to ensure that the
> streams are properly rescued:
> - Change your patches so that the sink will be removed instead of suspended.
> - Or add PA_SUSPEND_UNAVAILABLE as additional trigger to 
> module-rescue-stream.
> - Or let the core rescue the streams in the suspend case.

My plan is to let the core rescue streams that are left on a sink whose
active port becomes unavailable. It doesn't matter whether the sink
suspends itself or not.



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