Nirbheek Chauhan b3806da265 avfvideosrc: Report latency when doing screen capture
There is no `device` when doing screen capture, but there is always an
`input`, so use that to decide when we can reply to a latency query.
Without this, the latency query just fails.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3589>
2022-12-16 23:58:07 +00:00
..