He Junyan 954f7cf88c va: Use the GstVaSurfaceCopy of the allocator atomically.
The mem_copy() of the allocator can be called simultaneously from
different threads. We should use atomic pointer operations to create
and use the GstVaSurfaceCopy of the allocator.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1373>
2021-11-29 19:25:31 +00:00
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