This one offers API to interract on a lower level with
the D-Bus reservation API and uses GDBus high level bindings only.
Also, this one implements the full Acquire procedure, calling
RequestRelease() on the peer and requesting the name again with
REPLACE_EXISTING
deactivate() is normally called from WpCore's dispose() and
that's too late to convert a weak WpCore ref to a strong one,
so we cannot find the WpConfiguration and remove the engine.
So, keep a reference to the WpConfiguration earlier.
If the engine is not stopped on time, proxies on the export_core
are destroyed after their core and pipewire complains
* Use a more complete API to introspect SPA types
* Avoid the need for the Tables enumeration; the tables
are now registered with a string
* Avoid the need for initialization, work directly on spa_types
and other static data
* Allow working with Object pods that are not Params;
the PARAMS table was previously hardcoded in the pod implementation
* Add a different dynamic type registration system, closer to
how spa type works. The only regression is that we can no longer
register additional custom object fields (custom SPA_PROP_* for example),
but this feature can be re-added later
Now the WpPipewireObject interface is directly implemented by the mixin
and there is another interface that users of the mixin must implement
in order for the mixin to work proprely.
A lot of manual stuff that proxy classes had to do before are now
in the mixin. Also most of the data that would normally reside in Private
structures is now in the mixin data structure (stored as qdata on the object).
This is achieving the best amount of code reuse so far.
For impl objects (WpImpl*) there are also default implementations of the
standard pipewire object methods and the INFO & PARAM_* features are
more coherently enabled during the whole lifetime of these objects.
The Dbus device reservation has been moved into a separate module, and has also
been refactored to allow reserving a device name before an actual device is
created. Devices now are created and destroyed by the monitor depending on
whether PipeWire owns the device or not. This also simplifies a lot the device
activation module to always enable devices when they are created, and never
worry about checking whether a device is acquired by PipeWire or not.
there are underlying issues with the state management of the graph,
so it's not a very good idea to rely on it to activate / deactivate
our convert node depending on the links that exist
instead, track the links ourselves and create/destroy the corresponding
links to the target node accordingly; it's a more robust approach
it was also not entirely correct that we would previously configure
the convert node to be a driver (node.driver=true); maybe this caused
the underlying issues in the first place... we don't need it now
anyway, so it's gone
1. device export proxies must be destroyed manually since they are
not associated with the WpRegistry
2. the monitors should not disconnect before all WpSpaDevice objects
are destroyed; remove the manual disconnect call and let GObject
ref counting do its job (the core will disconnect when its last ref
count is dropped after the last monitor plugin is destroyed)
