If we get EPROTO, we likely have missed on some messages from the
server, and our state is now out of sync.
It's likely we can't recover (e.g. if error is due to fd limit hit), so
just drop the server connection in this case, similarly as if we got
EPIPE.
When the graph has no inputs and the channels is set to 0, don't create
a capture stream. Likewise, don't create a playback stream when there
are no graph outputs and the output channels is 0.
You can use this to make a sine source or a null sink.
There is no reason to fail when there is no input or output port.
We can simply run the graph with what there is. Even if there is no
input or output at all, running one instance of the plugins is
possible.
Add a busy builtin plugin that has no ports and keeps the CPU IDLE or
busy for the give percent.
The filter graph has, after parsing, a default number of input and
output ports. This is based on the description or the first/last element
input and output ports. Pass this information in the properties when
we emit the info.
Don't use the number of configured input/output ports as the default
number of channels in filter-chain because this is only determined after
activating the graph. Instead, use the default input/output channels.
The result is that when you load filter-chain without any channel
layout, it will default to the number of input/outputs of the graph
instead of 0. This allows for the node to be visible in the pulseaudio
API.
Fixes#5084
Make the parametric-equalizer module destroy the underlying filter-chain
module on destruction. This makes the EQ nodes get destroyed on unload.
Fixes#5045
WirePlumber recently added a mechanism to force mono mixdown on audio
outputs, which is a useful feature for accessibility. Let's also expose
that setting via libpulse for existing audio settings UIs to be able to
use.
In the current state the GET/SET stream format can handle the commands
response however, yet, it does not take care of checking that:
* A bound input stream cannot have it set, should reply accordingly
* A STREAMING_STREAM output stream cannot have it set, should reply
accordingly.
