screen-cast-stream: Embed the wayland output name to streams
If a screencast session is screencasting from multiple monitors, it is not possible to distinguish which stream (or PipeWire stream node id) belongs to which connected monitor (such information may be useful to the caller e.g. caller might want to embed the stream in a window and name it after the monitor connector, for example). This change adds optional metadata for monitor streams to also return the wayland output name with the stream.
Ideally, this metadata should equip the caller to get more information about display from the following Wayland interfaces:
- https://wayland.freedesktop.org/docs/html/apa.html#protocol-spec-wl_output
- https://wayland.app/protocols/xdg-output-unstable-v1
Related:
Edited by salmanmlk