[gstreamer-bugs] [Bug 602556] New: x264enc and ffenc upstream GstForceKeyUnit handling are not thread-safe

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=602556
  GStreamer | gst-plugins-ugly | git

           Summary: x264enc and ffenc upstream GstForceKeyUnit handling
                    are not thread-safe
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-ugly
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: tester at tester.ca
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


The implementation of GstForceKeyUnit in both of these elements are not thread
safe (since the element reading the modified variable is very likely in another
thread).

Also, I implemented pushed back a GstForceKeyUnit event downstream in both
(like theoraenc already does). That will allow muxers and payloaders to react
to it (the next step is to make the h264 payload resend the PPS/SPS in the
downstream event).

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