Fix few issues in virtual camera service:
* Fix incorrect flush implementation (do not try to fetch element from
empty queue).
* Gracefully handle flush call even if render thread is not running.
* Make sure thread is terminated when close is called on session.
* Remove metadata from CaptureResult send when processing flush
request.
* Set streamId to -1 in ErrorRequest NotifyMsg (required, otherwise
it NotifyMsg fails validation in framework).
Bug: 301023410
Test: atest virtual_camera_tests
Test: OpenCamera
Change-Id: I899a9eaed0b69eed93945391c2d0a25120136267
5 files changed