query/set parameters/controls from GST pipeline

[Joel Winarske]

> > I can assist with building a cpp tool that transforms
> src/libcamera/control_ids.yaml into src/gstreamer/gstlibcamera-controls*.
>
> That would be more then welcome !
>

Cool.  I'll start looking into it.


> This is a different approach from the upstream pipewire approach. It will
> certainly yield higher latency, but then you got a more usable buffer
> lifetime
> policy. Let us know the outcome for the "node control", this is still an
> open
> question in regard to the in-pipewire libcamerasrc node. There was also
> open
> questions upon if a node control can cause the number of ports to
> dynamically
> change.
>

This approach came from George (WirePlumber); context is complex Camera
graphs.  What upstream approach are you referring to?
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