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[MOVED FROM GST-P-FARSIGHT] Import adder src event handling

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20080402224612-3e2dc-21a682b18fe18782bf7fa48983c13c1ad86dc5a1.gz
This commit is contained in:
Olivier Crete 2008-04-02 22:46:12 +00:00 committed by Edward Hervey
parent 59d6b57d52
commit 9b1a57442e
1 changed files with 85 additions and 0 deletions
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85
gst/liveadder/liveadder.c
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@ -115,6 +115,8 @@ static GstCaps *
gst_live_adder_sink_getcaps (GstPad * pad);
static gboolean
gst_live_adder_src_activate_push (GstPad * pad, gboolean active);
static gboolean
gst_live_adder_src_event (GstPad * pad, GstEvent * event);
static void
gst_live_adder_loop (gpointer data);
@ -222,6 +224,8 @@ gst_live_adder_init (GstLiveAdder * adder, GstLiveAdderClass *klass)
GST_DEBUG_FUNCPTR (gst_live_adder_setcaps));
gst_pad_set_query_function (adder->srcpad,
GST_DEBUG_FUNCPTR (gst_live_adder_query));
gst_pad_set_event_function (adder->srcpad,
GST_DEBUG_FUNCPTR (gst_live_adder_src_event));
gst_pad_set_activatepush_function (adder->srcpad,
GST_DEBUG_FUNCPTR (gst_live_adder_src_activate_push));
gst_element_add_pad (GST_ELEMENT (adder), adder->srcpad);
@ -680,6 +684,87 @@ gst_live_adder_query (GstPad * pad, GstQuery * query)
return res;
}
static gboolean
forward_event_func (GstPad * pad, GValue * ret, GstEvent * event)
{
gst_event_ref (event);
GST_LOG_OBJECT (pad, "About to send event %s", GST_EVENT_TYPE_NAME (event));
if (!gst_pad_push_event (pad, event)) {
g_value_set_boolean (ret, FALSE);
GST_WARNING_OBJECT (pad, "Sending event %p (%s) failed.",
event, GST_EVENT_TYPE_NAME (event));
} else {
GST_LOG_OBJECT (pad, "Sent event %p (%s).",
event, GST_EVENT_TYPE_NAME (event));
}
gst_object_unref (pad);
return TRUE;
}
/* forwards the event to all sinkpads, takes ownership of the
* event
*
* Returns: TRUE if the event could be forwarded on all
* sinkpads.
*/
static gboolean
forward_event (GstLiveAdder * adder, GstEvent * event)
{
gboolean ret;
GstIterator *it;
GValue vret = { 0 };
GST_LOG_OBJECT (adder, "Forwarding event %p (%s)", event,
GST_EVENT_TYPE_NAME (event));
ret = TRUE;
g_value_init (&vret, G_TYPE_BOOLEAN);
g_value_set_boolean (&vret, TRUE);
it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (adder));
gst_iterator_fold (it, (GstIteratorFoldFunction) forward_event_func, &vret,
event);
gst_iterator_free (it);
gst_event_unref (event);
ret = g_value_get_boolean (&vret);
return ret;
}
static gboolean
gst_live_adder_src_event (GstPad * pad, GstEvent * event)
{
GstLiveAdder *adder;
gboolean result;
adder = GST_LIVE_ADDER (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_QOS:
/* QoS might be tricky */
result = FALSE;
break;
case GST_EVENT_SEEK:
/* I'm not certain how to handle seeks yet */
result = FALSE;
break;
case GST_EVENT_NAVIGATION:
/* navigation is rather pointless. */
result = FALSE;
break;
default:
/* just forward the rest for now */
result = forward_event (adder, event);
break;
}
gst_object_unref (adder);
return result;
}
static guint
gst_live_adder_length_from_duration (GstLiveAdder *adder, GstClockTime duration)
{