[Bug 797039] Race condition: double free or corruption (fasttop) with vaapih264dec ! vaapipostproc

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=797039

--- Comment #10 from Víctor Manuel Jáquez Leal <vjaquez at igalia.com> ---
Created attachment 373506
  --> https://bugzilla.gnome.org/attachment.cgi?id=373506&action=edit
libs: display: lock at extracting available image formates

When running several vaapi elements at the concurrently, at
initialization, there is a race condition when extractin the avaible
formats for images and subpictures.

This patch add a lock when the those arrays are filled.

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