void InbandTextTrackPrivateGStreamer::notifyTrackOfStreamChanged()
{
GRefPtr<GstEvent> event = adoptGRef(gst_pad_get_sticky_event(m_pad.get(),
GST_EVENT_STREAM_START, 0));
if (!event)
return;
const gchar* streamId;
gst_event_parse_stream_start(event.get(), &streamId);
INFO_MEDIA_MESSAGE("Track %d got stream start for stream %s.", m_index, streamId);
m_streamId = streamId;
}
static gboolean
gst_streamid_demux_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
gboolean res = TRUE;
GstStreamidDemux *demux;
const gchar *stream_id = NULL;
GstPad *active_srcpad = NULL;
demux = GST_STREAMID_DEMUX (parent);
GST_DEBUG_OBJECT (demux, "event = %s, sticky = %d",
GST_EVENT_TYPE_NAME (event), GST_EVENT_IS_STICKY (event));
if (GST_EVENT_TYPE (event) == GST_EVENT_STREAM_START) {
gst_event_parse_stream_start (event, &stream_id);
if (!stream_id)
goto no_stream_id;
GST_OBJECT_LOCK (demux);
active_srcpad =
gst_streamid_demux_get_srcpad_by_stream_id (demux, stream_id);
if (!active_srcpad) {
/* try to generate a srcpad */
if (gst_streamid_demux_srcpad_create (demux, pad, stream_id)) {
GST_OBJECT_UNLOCK (demux);
gst_pad_set_active (demux->active_srcpad, TRUE);
/* Forward sticky events to the new srcpad */
gst_pad_sticky_events_foreach (demux->sinkpad, forward_sticky_events,
demux->active_srcpad);
gst_element_add_pad (GST_ELEMENT_CAST (demux), demux->active_srcpad);
} else {
GST_OBJECT_UNLOCK (demux);
goto fail_create_srcpad;
}
} else if (demux->active_srcpad != active_srcpad) {
demux->active_srcpad = active_srcpad;
GST_OBJECT_UNLOCK (demux);
g_object_notify (G_OBJECT (demux), "active-pad");
} else
GST_OBJECT_UNLOCK (demux);
}
if (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_START
|| GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP
|| GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
res = gst_pad_event_default (pad, parent, event);
} else if (demux->active_srcpad) {
GstPad *srcpad = NULL;
GST_OBJECT_LOCK (demux);
srcpad = gst_object_ref (demux->active_srcpad);
GST_OBJECT_UNLOCK (demux);
res = gst_pad_push_event (srcpad, event);
gst_object_unref (srcpad);
} else {
gst_event_unref (event);
}
return res;
/* ERRORS */
no_stream_id:
{
GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
("Error occurred trying to get stream-id to create a srcpad"),
("no stream-id found at %s", GST_EVENT_TYPE_NAME (event)));
gst_event_unref (event);
return FALSE;
}
fail_create_srcpad:
{
GST_ELEMENT_ERROR (demux, STREAM, FAILED,
("Error occurred trying to create a srcpad"),
("Failed to create a srcpad via stream-id:%s", stream_id));
gst_event_unref (event);
return FALSE;
}
}
static void
gst_srtp_dec_push_early_events (GstSrtpDec * filter, GstPad * pad,
GstPad * otherpad, gboolean is_rtcp)
{
GstEvent *otherev, *ev;
ev = gst_pad_get_sticky_event (pad, GST_EVENT_STREAM_START, 0);
if (ev) {
gst_event_unref (ev);
} else {
gchar *new_stream_id;
otherev = gst_pad_get_sticky_event (otherpad, GST_EVENT_STREAM_START, 0);
if (otherev) {
const gchar *other_stream_id;
gst_event_parse_stream_start (otherev, &other_stream_id);
new_stream_id = g_strdup_printf ("%s/%s", other_stream_id,
is_rtcp ? "rtcp" : "rtp");
gst_event_unref (otherev);
} else {
new_stream_id = gst_pad_create_stream_id (pad, GST_ELEMENT (filter),
is_rtcp ? "rtcp" : "rtp");
}
ev = gst_event_new_stream_start (new_stream_id);
g_free (new_stream_id);
gst_pad_push_event (pad, ev);
}
ev = gst_pad_get_sticky_event (pad, GST_EVENT_CAPS, 0);
if (ev) {
gst_event_unref (ev);
} else {
GstCaps *caps;
if (is_rtcp)
caps = gst_caps_new_empty_simple ("application/x-rtcp");
else
caps = gst_caps_new_empty_simple ("application/x-rtp");
gst_pad_set_caps (pad, caps);
gst_caps_unref (caps);
}
ev = gst_pad_get_sticky_event (pad, GST_EVENT_SEGMENT, 0);
if (ev) {
gst_event_unref (ev);
} else {
ev = gst_pad_get_sticky_event (otherpad, GST_EVENT_SEGMENT, 0);
if (ev)
gst_pad_push_event (pad, ev);
}
if (is_rtcp)
filter->rtcp_has_segment = TRUE;
else
filter->rtp_has_segment = TRUE;
}
