[Bug 755523] teletextdec: add property to show/hide hidden content

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=755523

--- Comment #10 from Thomas Löwe <lazyt at mailbox.org> ---
Ok, but what is the problem to refresh the page once when the user clicks?

The commented out function simply does the following:

void gst_teletextdec_update (GstTeletextDec * teletext)
{
  page_info *pi = g_new (page_info, 1);
  pi->pgno = teletext->pageno;
  pi->subno = teletext->subno == -1 ? VBI_ANY_SUBNO : teletext->subno;

  g_mutex_lock (&teletext->queue_lock);
  g_queue_push_tail (teletext->queue, pi);
  g_mutex_unlock (&teletext->queue_lock);

  gst_teletextdec_push_page (teletext);
}

I don't know if this is the correct way to refresh, but it was working fine
here (together with the navigation patch mentioned above).

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