concat: fix qos event handling

We were shadowing the sinkpad variable resulting in:
- the QoS event to be send to all sink pads instead of the active one
- the pad to be leaked

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1208>

diff --git a/subprojects/gstreamer/plugins/elements/gstconcat.c b/subprojects/gstreamer/plugins/elements/gstconcat.c
index 35f68eb..22aaa20 100644 (file)
--- a/subprojects/gstreamer/plugins/elements/gstconcat.c
+++ b/subprojects/gstreamer/plugins/elements/gstconcat.c
@@ -758,14 +758,11 @@ gst_concat_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
       break;
     }
     case GST_EVENT_QOS:{
-      GstPad *sinkpad = NULL;
-
       g_mutex_lock (&self->lock);
       if ((sinkpad = self->current_sinkpad))
         gst_object_ref (sinkpad);
       g_mutex_unlock (&self->lock);
 
-
       if (!sinkpad) {
         gst_event_replace (&event, NULL);
         ret = FALSE;