rtspsrc: Fix crash when is-live=false

The pad's parent (i.e., rtspsrc) can be nullptr since we add pads
later.

Co-authored-by: Jan Schmidt <jan@centricular.com>
Fixes: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/2751
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4971>

diff --git a/subprojects/gst-plugins-good/gst/rtsp/gstrtspsrc.c b/subprojects/gst-plugins-good/gst/rtsp/gstrtspsrc.c
index d042ee4..8666d26 100644 (file)
--- a/subprojects/gst-plugins-good/gst/rtsp/gstrtspsrc.c
+++ b/subprojects/gst-plugins-good/gst/rtsp/gstrtspsrc.c
@@ -3156,11 +3156,10 @@ gst_rtspsrc_handle_src_sink_event (GstPad * pad, GstObject * parent,
     GstEvent * event)
 {
   GstRTSPStream *stream;
-  GstRTSPSrc *self = GST_RTSPSRC (GST_OBJECT_PARENT (parent));
 
   stream = gst_pad_get_element_private (pad);
 
-  event = gst_rtspsrc_update_src_event (self, stream, event);
+  event = gst_rtspsrc_update_src_event (stream->parent, stream, event);
 
   return gst_pad_push_event (stream->srcpad, event);
 }