GST_STIME_FORMAT is more appropriate for GstClockTimeDiff since it can handle negative values better. https://bugzilla.gnome.org/show_bug.cgi?id=757480
GST_STIME_FORMAT is more appropriate for GstClockTimeDiff since it can handle negative values better. https://bugzilla.gnome.org/show_bug.cgi?id=757480