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valve: Repush sticky events after disabling dropping

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This commit is contained in:
Olivier Crête 2012-01-29 22:58:51 +00:00
parent f8c6cd196e
commit dad60ef5c6
2 changed files with 46 additions and 24 deletions
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69
plugins/elements/gstvalve.c
View file

@ -74,7 +74,7 @@ static void gst_valve_get_property (GObject * object,
static GstFlowReturn gst_valve_chain (GstPad * pad, GstObject * parent,
GstBuffer * buffer);
static gboolean gst_valve_sink_event (GstPad * pad, GstObject * parent,
static gboolean gst_valve_event (GstPad * pad, GstObject * parent,
GstEvent * event);
static gboolean gst_valve_query (GstPad * pad, GstObject * parent,
GstQuery * query);
@ -118,6 +118,8 @@ gst_valve_init (GstValve * valve)
valve->discont = FALSE;
valve->srcpad = gst_pad_new_from_static_template (&srctemplate, "src");
gst_pad_set_event_function (valve->srcpad,
GST_DEBUG_FUNCPTR (gst_valve_event));
gst_pad_set_query_function (valve->srcpad,
GST_DEBUG_FUNCPTR (gst_valve_query));
gst_element_add_pad (GST_ELEMENT (valve), valve->srcpad);
@ -126,9 +128,10 @@ gst_valve_init (GstValve * valve)
gst_pad_set_chain_function (valve->sinkpad,
GST_DEBUG_FUNCPTR (gst_valve_chain));
gst_pad_set_event_function (valve->sinkpad,
GST_DEBUG_FUNCPTR (gst_valve_sink_event));
GST_DEBUG_FUNCPTR (gst_valve_event));
gst_pad_set_query_function (valve->sinkpad,
GST_DEBUG_FUNCPTR (gst_valve_query));
GST_PAD_SET_PROXY_CAPS (valve->sinkpad);
gst_element_add_pad (GST_ELEMENT (valve), valve->sinkpad);
}
@ -142,6 +145,7 @@ gst_valve_set_property (GObject * object,
switch (prop_id) {
case PROP_DROP:
g_atomic_int_set (&valve->drop, g_value_get_boolean (value));
gst_pad_push_event (valve->sinkpad, gst_event_new_reconfigure ());
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -165,6 +169,25 @@ gst_valve_get_property (GObject * object,
}
}
static gboolean
forward_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
{
GstValve *valve = user_data;
if (!gst_pad_push_event (valve->srcpad, gst_event_ref (*event)))
valve->need_repush_sticky = TRUE;
return TRUE;
}
static void
gst_valve_repush_sticky (GstValve * valve)
{
valve->need_repush_sticky = FALSE;
gst_pad_sticky_events_foreach (valve->sinkpad, forward_sticky_events, valve);
}
static GstFlowReturn
gst_valve_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
@ -181,6 +204,9 @@ gst_valve_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
valve->discont = FALSE;
}
if (valve->need_repush_sticky)
gst_valve_repush_sticky (valve);
ret = gst_pad_push (valve->srcpad, buffer);
}
@ -196,47 +222,42 @@ gst_valve_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
static gboolean
gst_valve_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
gst_valve_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstValve *valve;
gboolean ret = TRUE;
valve = GST_VALVE (parent);
if (g_atomic_int_get (&valve->drop))
if (g_atomic_int_get (&valve->drop)) {
valve->need_repush_sticky |= GST_EVENT_IS_STICKY (event);
gst_event_unref (event);
else
ret = gst_pad_push_event (valve->srcpad, event);
} else {
if (valve->need_repush_sticky)
gst_valve_repush_sticky (valve);
ret = gst_pad_event_default (pad, parent, event);
}
/* Ignore errors if "drop" was changed while the thread was blocked
* downwards.
*/
if (g_atomic_int_get (&valve->drop))
if (g_atomic_int_get (&valve->drop)) {
valve->need_repush_sticky |= GST_EVENT_IS_STICKY (event);
ret = TRUE;
}
return ret;
}
static gboolean
gst_valve_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstValve *valve;
gboolean res;
GstPad *otherpad;
GstValve *valve = GST_VALVE (parent);
valve = GST_VALVE (parent);
if (g_atomic_int_get (&valve->drop))
return FALSE;
otherpad = (pad == valve->sinkpad ? valve->srcpad : valve->sinkpad);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:
if (!(res = gst_pad_peer_query (otherpad, query)))
res = gst_pad_query_default (pad, parent, query);
break;
default:
res = gst_pad_peer_query (otherpad, query);
break;
}
return res;
return gst_pad_query_default (pad, parent, query);
}

1
plugins/elements/gstvalve.h
View file

@ -61,6 +61,7 @@ struct _GstValve
/* Protected by the stream lock */
gboolean discont;
gboolean need_repush_sticky;
GstPad *srcpad;
GstPad *sinkpad;