Backport of "gst: Protect initialization state with a recursive mutex" into 1.20
Backport of !2740 (merged) "gst: Protect initialization state with a recursive mutex".
Commits:
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
Backport of !2740 (merged) "gst: Protect initialization state with a recursive mutex".
Commits: