#897: include vumeter samples in the remote protocol
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Reporter: brian | Owner: lennart
Type: enhancement | Status: new
Milestone: | Component: daemon
Resolution: | Keywords:
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Comment(by tanuk):
Replying to [comment:3 coling]:
> I could also do some stuff in PA to really cut down on the use of the
monitor streams - At present there are four tabs which show VU meters, but
you can only see one at a time. Therefore we can easily "cork" the streams
that are not visible. This will cut down on the amount of traffic it
subsequently generates. Also, as tunnels are involved here, even if the
PEAK_DETECT flag is used, the tunnel itself still uses a fixed rate. The
actual tunnel is opaque to pavucontrol - it's just another sink. Therefore
the problem is that we request the data from the Tunnel Sink at the lower
25Hz rate, but for that Tinnel Sink to get the data it has to transfer it
over the wire at the rate the tunnel operates (i.e. 44.1kHz) and then down
sample it to 25kHz to feed it to our peak detector... obviously this is
suboptimal but that really need to be worked on in the Tunnel Sink
implementation - perhaps add the ability to send different data rates at
the same time or to allow for dynamic switching of sample rates in a
tunnel.
Replace "sink" with "source" in the quoted text, and it starts to make
sense.
If we are talking about tunnel sinks, there the only problem appears to be
that the tunnel sink doesn't understand to stop all processing and go to
the idle mode when only peak detection streams are connected to its
monitor source.
For reducing the network load for tunnel sources caused by pavucontrol,
here's another idea, I'm not saying that it's a good idea, but an idea
anyway: don't show vumeters at all for network devices, or enable them
only at user request.
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Ticket URL: <http://pulseaudio.org/ticket/897#comment:5>
PulseAudio <http://pulseaudio.org/>
The PulseAudio Sound Server
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