static GstStateChangeReturn
gst_teletextdec_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
GstTeletextDec *teletext;
teletext = GST_TELETEXTDEC (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_teletextdec_zvbi_init (teletext);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret != GST_STATE_CHANGE_SUCCESS)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_teletextdec_zvbi_clear (teletext);
break;
default:
break;
}
return ret;
}
static gboolean
gst_teletextdec_sink_event (GstPad * pad, GstEvent * event)
{
gboolean ret;
GstTeletextDec *teletext = GST_TELETEXTDEC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (teletext, "got event %s",
gst_event_type_get_name (GST_EVENT_TYPE (event)));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
/* maybe save and/or update the current segment (e.g. for output
* clipping) or convert the event into one in a different format
* (e.g. BYTES to TIME) or drop it and set a flag to send a newsegment
* event in a different format later */
ret = gst_pad_push_event (teletext->srcpad, event);
break;
case GST_EVENT_EOS:
/* end-of-stream, we should close down all stream leftovers here */
gst_teletextdec_zvbi_clear (teletext);
ret = gst_pad_push_event (teletext->srcpad, event);
break;
case GST_EVENT_FLUSH_STOP:
gst_teletextdec_zvbi_clear (teletext);
gst_teletextdec_zvbi_init (teletext);
ret = gst_pad_push_event (teletext->srcpad, event);
break;
default:
ret = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (teletext);
return ret;
}