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inputselector: Send upstream events to all sinkpads, not only the selected one

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This makes sure that SEEK events are sent to all upstream elements, which is
required if different streams are completely distinct pipeline parts. Also this
allows QoS to be done on deselected streams, flushes to be handled correctly,
etc.
This commit is contained in:
Sebastian Dröge 2011-05-20 12:00:11 +02:00
parent 31a314ac5b
commit 67cd7fd0a2
1 changed files with 66 additions and 10 deletions
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76
plugins/elements/gstinputselector.c
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@ -1058,8 +1058,12 @@ static gboolean
gst_input_selector_event (GstPad * pad, GstEvent * event)
{
GstInputSelector *sel;
gboolean res = FALSE;
GstPad *otherpad;
gboolean result = FALSE;
GstIterator *iter;
gboolean done = FALSE;
GValue item = { 0, };
GstPad *eventpad;
GList *pushed_pads = NULL;
sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
if (G_UNLIKELY (sel == NULL)) {
@ -1067,16 +1071,68 @@ gst_input_selector_event (GstPad * pad, GstEvent * event)
return FALSE;
}
otherpad = gst_input_selector_get_linked_pad (sel, pad, TRUE);
if (otherpad) {
res = gst_pad_push_event (otherpad, event);
/* Send upstream events to all sinkpads */
iter = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (sel));
gst_object_unref (otherpad);
} else
gst_event_unref (event);
/* This is now essentially a copy of gst_pad_event_default_dispatch
* with a different iterator */
while (!done) {
switch (gst_iterator_next (iter, &item)) {
case GST_ITERATOR_OK:
eventpad = g_value_get_object (&item);
gst_object_unref (sel);
return res;
/* if already pushed, skip */
if (g_list_find (pushed_pads, eventpad)) {
g_value_reset (&item);
break;
}
if (GST_PAD_IS_SRC (eventpad)) {
/* for each pad we send to, we should ref the event; it's up
* to downstream to unref again when handled. */
GST_LOG_OBJECT (pad, "Reffing and sending event %p (%s) to %s:%s",
event, GST_EVENT_TYPE_NAME (event),
GST_DEBUG_PAD_NAME (eventpad));
gst_event_ref (event);
result |= gst_pad_push_event (eventpad, event);
} else {
/* we only send the event on one pad, multi-sinkpad elements
* should implement a handler */
GST_LOG_OBJECT (pad, "sending event %p (%s) to one sink pad %s:%s",
event, GST_EVENT_TYPE_NAME (event),
GST_DEBUG_PAD_NAME (eventpad));
result = gst_pad_push_event (eventpad, event);
done = TRUE;
event = NULL;
}
pushed_pads = g_list_prepend (pushed_pads, eventpad);
g_value_reset (&item);
break;
case GST_ITERATOR_RESYNC:
/* We don't reset the result here because we don't push the event
* again on pads that got the event already and because we need
* to consider the result of the previous pushes */
gst_iterator_resync (iter);
break;
case GST_ITERATOR_ERROR:
GST_ERROR_OBJECT (pad, "Could not iterate over internally linked pads");
done = TRUE;
break;
case GST_ITERATOR_DONE:
done = TRUE;
break;
}
}
g_value_unset (&item);
gst_iterator_free (iter);
g_list_free (pushed_pads);
gst_event_unref (event);
return result;
}
/* query on the srcpad. We override this function because by default it will