port_pause is not needed, spa elements should pause themselves when
setting NULL format or buffers.
Handle use_buffer or alloc_buffer error cases.
Clear buffers in the port before cleaning up the memory.
Add the right propId to properties so they can get controls.
Keep track of properties and handle the io area for them
Check if properties changed and update the v4l2 controls
Make the protocol client connect call async with a callback when it
completes.
Move the connect methods into separate files, add an empty connect
method that will use the screencast portal to get a pipewire fd.
Use the remote intention to get the connect method.
Add some better error reporting.
Add method to enable/disable a node. Disabled nodes will SUSPEND and not
be available for automatic connections, it is intented for handling
the monitor node state.
When the mixer has no bytes queued, only ask for more bytes when
we were in the OK status otherwise we might override the HAVE_BUFFER
status and discard the queued buffer.
Since we're using the `found()` method on tools found via the
`find_program()` function, we are expecting them to be optional,
but we are not passing `required:false` to ensure that Meson does
not bail out when the tool is not found.
The dependency checks for system libraries is not really portable.
Not all C standard libraries have separate rt and math libraries, so the
requirement should be set to false.
Additionally, finding threading libraries should be left to Meson
itself, using the `dependency('threads')` object, which will do the
right thing depending on platform and compiler.
Remove the core permission check callback. We can now use the per
client permission configuration.
Rework the flatpak module to use the permissions. When a client
connects, do the portal call and iterate all globals, updating the
permissions. Also update the permissions of newly added globals.
The client is owner of itself.
Don't pass around the client object but keep track of the current
client in the core object. This way we don't need to add a client
argument to functions and can check security when needed.
