[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 #5 from Nicolas Dufresne <nicolas.dufresne at collabora.co.uk> 2014-07-10 22:11:06 UTC ---
Actually, if I port v4l2 to use a qdata and it's destroy notify, all I have to
do is keep the FD around, and check if parent == NULL before closing the dmabuf
fd.

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