[gstreamer-bugs] [Bug 626379] New: Change GnlObject::active property change the current position of 0:00:00.166666667 in the pipeline

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=626379
  GStreamer | gnonlin | git

           Summary: Change GnlObject::active property change the current
                    position  of 0:00:00.166666667 in the pipeline
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gnonlin
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: tsaunier at gnome.org
         QAContact: bilboed at gmail.com
      GNOME target: ---
     GNOME version: ---


In the effect branch of pitivi the fact of doing:
    activated = track_effect.gnl_object.get_property("active")
    track_effect.gnl_object.set_property("active", not activated)  
make the video seeking a few frames in the previewer.

In the attached file, you can see lines 15353, 15617, 15921, 16185, 16194,
16489, 16753, 17057... that the call of gnl_media_to_object_time always return
a time 0:00:00.166666667 inferior than the call of update_pipeline which is
done right after changing the GnlObject::active property.

I guess this is due to gnonlin  since I actually don't do anything else than
activating/inactivating the effect when it happens.

This also happens when adding an effect to the timeline actually but I didn't
figure out how to show it in the log file.

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