[Bug 742617] New: Permit missing codec installation when GST_REGISTRY_UPDATE=no

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=742617
  GStreamer | gstreamer (core) | 1.4.5

           Summary: Permit missing codec installation when
                    GST_REGISTRY_UPDATE=no
    Classification: Platform
           Product: GStreamer
           Version: 1.4.5
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: mcatanzaro at gnome.org
         QAContact: gstreamer-bugs at lists.freedesktop.org
                CC: slomo at coaxion.net
     GNOME version: ---


It would be nice for gstreamer to detect the presence of new plugins even when
running with GST_REGISTRY_UPDATE=no, which we're going to need to use to
sandbox the web process in WebKitGTK+. Otherwise, I think we'll need to restart
our web processes when a plugin is installed.

slomo:  restarting the web process can be prevented with some changes in
gstreamer though
slomo:  gstreamer/gst/gstregistry.c, gst_update_registry() ->
ensure_current_registry() is the interesting part
slomo:  basically you need a way to set _gst_disable_registry_cache to FALSE
again
slomo:  assuming that code can actually be called twice, otherwise that needs
to be fixed too
slomo:  maybe it should actually be always called again

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