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.
af3ad7bf9f set the fd and MAPPABLE
flag on buffer data when it was allocated inline in shared mem, even
for MemPtr data. In the client-node however we don't pass along this
fd and so we also should not pass the MAPPABLE flag for MemPtr data.
This fixes an issue in older clients that blindly try to map the fd when
the MAPPABLE flag is set, even when there is no fd (and there is already
a data pointer).
Fixes#5003
