[Bug 684307] New: playbin/playsink doesn't allow replacement of the sinks

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=684307
  GStreamer | gst-plugins-base | git

           Summary: playbin/playsink doesn't allow replacement of the
                    sinks
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: thaytan at mad.scientist.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


LibreOffice has been using an idiom in 0.10 where it prerolls playbin with
fakesink configured as the video-sink in order to get the video width/height,
and then replaces the video-sink (setting it to NULL) and sets playbin through
PAUSED->READY->PAUSED to get it recreate the sink.

With playsink in 1.0, the video chain never gets destroyed from the first time,
so it continues to use fakesink.

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