[Bug 779145] dmabuf export from vaapi encoders fails

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=779145

--- Comment #9 from Nicolas Dufresne (stormer) <nicolas at ndufresne.ca> ---
Problem would be:

  VAAPI produce a dmabuf
  glupload create a ELGImage and cache it (qdata on the GstMemory)
  glimagesink renders (all fine so far)
  The GstBuffer goes back to VAAPI
  VAAPI replace the FD
  glupload pick the cached EGLImage
  glimagesink renders from the wrong FD

My take, if you need to change FD, just grab another GstMemory object.

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