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[James Henstridge <james.henstridge@xxxxxxxxxxxxx>]

I gave michi's branch and test videos a try.  For the six videos being
thumbnailed in parallel, I see two successful thumbnails, two instances
that look like they died due to invalid memory allocations:

(vs-thumb:15299): GLib-ERROR **:
/build/buildd/glib2.0-2.45.1/./glib/gmem.c:357: overflow allocating
4294967274*8 bytes

(vs-thumb:15298): GLib-ERROR **:
/build/buildd/glib2.0-2.45.1/./glib/gmem.c:357: overflow allocating
4294967274*8 bytes

And two that have stuck around eating a little more than one CPU each.
I was able to kill -9 them though.

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Packages, which is subscribed to gstreamer1.0 in Ubuntu.
https://bugs.launchpad.net/bugs/1466273

Title:
  gstreamer fails intermittently

Status in Thumbnail generator for all kinds of files:
  New
Status in gstreamer package in Ubuntu:
  New
Status in gstreamer1.0 package in Ubuntu:
  New

Bug description:
  gstreamer occasionally fails to extract a thumbnail from a video file.
  It's clearly a race condition because, almost all of the time, it
  succeeds. To reproduce:

  Check out the thumbnailer/devel branch at r217 and build it. Then:

  cd build/src/vs-thumb

  ./vs-thumb fd://0 ./x.jpg <../../../tests/media/testvideo.ogg

  Point a browser at the generated x.jpg file and check that the image
  was extracted correctly.

  Now run

  while ./vs-thumb fd://0 ./x.jpg <../../../tests/media/testvideo.ogg ;
  do :; done

  Within maybe a hundred iterations or so, I get:

  Error creating thumbnail: ThumbnailExtractor: change_state(): reading
  async messages: GStreamer error: negotiation problem.

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