*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
*
*/
/**
* SECTION:element-valve
+ * @title: valve
*
* The valve is a simple element that drops buffers when the #GstValve:drop
* property is set to %TRUE and lets then through otherwise.
*
- * Any downstream error received while the #GstValve:drop property is %FALSE
+ * Any downstream error received while the #GstValve:drop property is %TRUE
* is ignored. So downstream element can be set to %GST_STATE_NULL and removed,
* without using pad blocking.
- *
- * This element was previously part of gst-plugins-farsight, and then
- * gst-plugins-bad.
- *
- * Documentation last reviewed on 2010-12-30 (0.10.31)
- *
- * Since: 0.10.32
*/
#ifdef HAVE_CONFIG_H
static void gst_valve_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
-static gboolean gst_valve_event (GstPad * pad, GstEvent * event);
-static GstFlowReturn gst_valve_chain (GstPad * pad, GstBuffer * buffer);
-static GstCaps *gst_valve_getcaps (GstPad * pad, GstCaps * filter);
+static GstFlowReturn gst_valve_chain (GstPad * pad, GstObject * parent,
+ GstBuffer * buffer);
+static gboolean gst_valve_sink_event (GstPad * pad, GstObject * parent,
+ GstEvent * event);
+static gboolean gst_valve_query (GstPad * pad, GstObject * parent,
+ GstQuery * query);
#define _do_init \
GST_DEBUG_CATEGORY_INIT (valve_debug, "valve", 0, "Valve");
g_object_class_install_property (gobject_class, PROP_DROP,
g_param_spec_boolean ("drop", "Drop buffers and events",
"Whether to drop buffers and events or let them through",
- DEFAULT_DROP, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ DEFAULT_DROP, G_PARAM_READWRITE | GST_PARAM_MUTABLE_PLAYING |
+ G_PARAM_STATIC_STRINGS));
- gst_element_class_add_pad_template (gstelement_class,
- gst_static_pad_template_get (&srctemplate));
- gst_element_class_add_pad_template (gstelement_class,
- gst_static_pad_template_get (&sinktemplate));
+ gst_element_class_add_static_pad_template (gstelement_class, &srctemplate);
+ gst_element_class_add_static_pad_template (gstelement_class, &sinktemplate);
- gst_element_class_set_details_simple (gstelement_class, "Valve element",
+ gst_element_class_set_static_metadata (gstelement_class, "Valve element",
"Filter", "Drops buffers and events or lets them through",
"Olivier Crete <olivier.crete@collabora.co.uk>");
}
valve->discont = FALSE;
valve->srcpad = gst_pad_new_from_static_template (&srctemplate, "src");
- gst_pad_set_getcaps_function (valve->srcpad,
- GST_DEBUG_FUNCPTR (gst_valve_getcaps));
+ gst_pad_set_query_function (valve->srcpad,
+ GST_DEBUG_FUNCPTR (gst_valve_query));
+ GST_PAD_SET_PROXY_CAPS (valve->srcpad);
gst_element_add_pad (GST_ELEMENT (valve), valve->srcpad);
valve->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
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_event));
- gst_pad_set_getcaps_function (valve->sinkpad,
- GST_DEBUG_FUNCPTR (gst_valve_getcaps));
+ GST_DEBUG_FUNCPTR (gst_valve_sink_event));
+ gst_pad_set_query_function (valve->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_valve_query));
+ GST_PAD_SET_PROXY_CAPS (valve->sinkpad);
+ GST_PAD_SET_PROXY_ALLOCATION (valve->sinkpad);
gst_element_add_pad (GST_ELEMENT (valve), valve->sinkpad);
}
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);
}
}
+
+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, GstBuffer * buffer)
+gst_valve_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
- GstValve *valve = GST_VALVE (GST_OBJECT_PARENT (pad));
+ GstValve *valve = GST_VALVE (parent);
GstFlowReturn ret = GST_FLOW_OK;
if (g_atomic_int_get (&valve->drop)) {
valve->discont = FALSE;
}
+ if (valve->need_repush_sticky)
+ gst_valve_repush_sticky (valve);
+
ret = gst_pad_push (valve->srcpad, buffer);
}
static gboolean
-gst_valve_event (GstPad * pad, GstEvent * event)
+gst_valve_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
- GstValve *valve = GST_VALVE (gst_pad_get_parent_element (pad));
+ GstValve *valve;
+ gboolean is_sticky = GST_EVENT_IS_STICKY (event);
gboolean ret = TRUE;
- if (g_atomic_int_get (&valve->drop))
+ valve = GST_VALVE (parent);
+
+ if (g_atomic_int_get (&valve->drop)) {
+ valve->need_repush_sticky |= is_sticky;
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 |= is_sticky;
ret = TRUE;
+ }
- gst_object_unref (valve);
return ret;
}
-static GstCaps *
-gst_valve_getcaps (GstPad * pad, GstCaps * filter)
-{
- GstValve *valve = GST_VALVE (gst_pad_get_parent (pad));
- GstCaps *caps;
- if (pad == valve->sinkpad)
- caps = gst_pad_peer_get_caps (valve->srcpad, filter);
- else
- caps = gst_pad_peer_get_caps (valve->sinkpad, filter);
- if (caps == NULL)
- caps = (filter ? gst_caps_ref (filter) : gst_caps_new_any ());
+static gboolean
+gst_valve_query (GstPad * pad, GstObject * parent, GstQuery * query)
+{
+ GstValve *valve = GST_VALVE (parent);
- gst_object_unref (valve);
+ if (GST_QUERY_IS_SERIALIZED (query) && g_atomic_int_get (&valve->drop))
+ return FALSE;
- return caps;
+ return gst_pad_query_default (pad, parent, query);
}
projects / platform / upstream / gstreamer.git / blobdiff