static GstFlowReturn
gst_valve_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
GstValve *valve = GST_VALVE (parent);
GstFlowReturn ret = GST_FLOW_OK;
if (g_atomic_int_get (&valve->drop)) {
gst_buffer_unref (buffer);
valve->discont = TRUE;
} else {
if (valve->discont) {
buffer = gst_buffer_make_writable (buffer);
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
valve->discont = FALSE;
}
if (valve->need_repush_sticky)
gst_valve_repush_sticky (valve);
ret = gst_pad_push (valve->srcpad, buffer);
}
/* Ignore errors if "drop" was changed while the thread was blocked
* downwards
*/
if (g_atomic_int_get (&valve->drop))
ret = GST_FLOW_OK;
return ret;
}
static gboolean
gst_valve_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstValve *valve;
gboolean is_sticky = GST_EVENT_IS_STICKY (event);
gboolean ret = TRUE;
valve = GST_VALVE (parent);
if (g_atomic_int_get (&valve->drop)) {
valve->need_repush_sticky |= is_sticky;
gst_event_unref (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)) {
valve->need_repush_sticky |= is_sticky;
ret = TRUE;
}
return ret;
}
static gboolean
gst_valve_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstValve *valve = GST_VALVE (parent);
if (GST_QUERY_IS_SERIALIZED (query) && g_atomic_int_get (&valve->drop))
return FALSE;
return gst_pad_query_default (pad, parent, query);
}
static void
gst_valve_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
GstValve *valve = GST_VALVE (object);
switch (prop_id) {
case PROP_DROP:
g_value_set_boolean (value, g_atomic_int_get (&valve->drop));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_valve_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstValve *valve = GST_VALVE (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);
break;
}
}
static GstCaps *
gst_valve_getcaps (GstPad * pad)
{
GstValve *valve = GST_VALVE (gst_pad_get_parent (pad));
GstCaps *caps;
if (pad == valve->sinkpad)
caps = gst_pad_peer_get_caps (valve->srcpad);
else
caps = gst_pad_peer_get_caps (valve->sinkpad);
if (caps == NULL)
caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
gst_object_unref (valve);
return caps;
}
static gboolean
gst_valve_event (GstPad * pad, GstEvent * event)
{
GstValve *valve = GST_VALVE (gst_pad_get_parent_element (pad));
gboolean ret = TRUE;
if (g_atomic_int_get (&valve->drop))
gst_event_unref (event);
else
ret = gst_pad_push_event (valve->srcpad, event);
/* Ignore errors if "drop" was changed while the thread was blocked
* downwards.
*/
if (g_atomic_int_get (&valve->drop))
ret = TRUE;
gst_object_unref (valve);
return ret;
}
static GstFlowReturn
gst_valve_buffer_alloc (GstPad * pad, guint64 offset, guint size,
GstCaps * caps, GstBuffer ** buf)
{
GstValve *valve = GST_VALVE (gst_pad_get_parent_element (pad));
GstFlowReturn ret = GST_FLOW_OK;
if (g_atomic_int_get (&valve->drop))
*buf = NULL;
else
ret = gst_pad_alloc_buffer (valve->srcpad, offset, size, caps, buf);
/* Ignore errors if "drop" was changed while the thread was blocked
* downwards
*/
if (g_atomic_int_get (&valve->drop))
ret = GST_FLOW_OK;
gst_object_unref (valve);
return ret;
}
