From 963557b79f5d3a91db944ed953a8c9fcab78a6ba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Wed, 6 Dec 2017 13:43:37 +0200
Subject: [PATCH] Query::get_structure() can also return NULL

---
 gstreamer/src/query.rs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/gstreamer/src/query.rs b/gstreamer/src/query.rs
index dd54b7ced..64d82d10d 100644
--- a/gstreamer/src/query.rs
+++ b/gstreamer/src/query.rs
@@ -120,10 +120,14 @@ impl GstRc<QueryRef> {
 }
 
 impl QueryRef {
-    pub fn get_structure(&self) -> &StructureRef {
+    pub fn get_structure(&self) -> Option<&StructureRef> {
         unsafe {
             let structure = ffi::gst_query_get_structure(self.as_mut_ptr());
-            StructureRef::from_glib_borrow(structure)
+            if structure.is_null() {
+                None
+            } else {
+                Some(StructureRef::from_glib_borrow(structure))
+            }
         }
     }