[Bug 788025] vaapih264enc leaks 1-4 frames of memory

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=788025

--- Comment #3 from Harvey <hchapman-gnomebugzilla at 3gfp.com> ---
(In reply to Hyunjun Ko from comment #1)
> I've been trying to reproduce this issue since I heard about this kind of
> leak in IRC and Slack. But I failed to reproduce it on both 1.12 and master.
> 
> FYI, I tried to reproduce by my sample using v4l2src, vaapih264enc and
> fdsink.
> 
> If you give any clue to reproduce it, it'd be nice.

1. I'm not sure if I can release our gstreamer test app publicly, but I can
give access to the two of you directly.

2. Using the GST_TRACERS didn't print anything useful.

3. I have a custom suppression file where I added every generated suppression.
I'll upload that along with the summary of running valgrind. Nothing is
classified as a "leak".

4. Our test app continuously captures frames to a tee. One of the tee outputs
is to a valve with an h264 encoder pipeline. For testing, we make 20 second
recordings with 5 second delays between.

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