[Bug 730441] dmabuf: shared the mapping with shared copies of the memory

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=730441
  GStreamer | gst-plugins-base | git

--- Comment #13 from Nicolas Dufresne <nicolas.dufresne at collabora.co.uk> 2014-07-11 12:30:54 UTC ---
For your interest, I'm not a big fan for parenting the way I was doing. QData
isn't too bad, but requires a big lock. In the long run, I though of
generalizing allocator that hold FD in it. Would be an interface, from there,
we could have a cleaner way to track FD based memory lifetime. In this case,
the V4L2Memory is completely internal, it's to get the same code path for
tracking memory being given back to the allocator.

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