From c6cbf8601216899027c8474dd28f5d994e23b76d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Mon, 24 Oct 2022 16:47:52 +0300
Subject: [PATCH] examples: glupload: Fix iterating over elements inside
 `glsinkbin`

Some elements might not have a factory so handle this gracefully instead
of erroring out.
---
 examples/src/glupload.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/src/glupload.rs b/examples/src/glupload.rs
index 19597f458..812ab62e4 100644
--- a/examples/src/glupload.rs
+++ b/examples/src/glupload.rs
@@ -566,11 +566,11 @@ impl App {
             src.link(&sink)?;
 
             // get the glupload element to extract later the used context in it
-            let mut iter = sink.dynamic_cast::<gst::Bin>().unwrap().iterate_elements();
+            let mut iter = sink.downcast_ref::<gst::Bin>().unwrap().iterate_elements();
             let glupload = loop {
                 match iter.next() {
                     Ok(Some(element)) => {
-                        if "glupload" == element.factory().unwrap().name() {
+                        if element.factory().map_or(false, |f| f.name() == "glupload") {
                             break Some(element);
                         }
                     }