From 378edb5c077e4738c2b158a9dce90725b1ad4b88 Mon Sep 17 00:00:00 2001
From: Jean-Baptiste Mardelle <jb@kdenlive.org>
Date: Sun, 31 Mar 2013 22:24:56 +0200
Subject: [PATCH] Fix possible crash when changing speed effect

---
 src/renderer.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/renderer.cpp b/src/renderer.cpp
index 35212083..dc47c393 100644
--- a/src/renderer.cpp
+++ b/src/renderer.cpp
@@ -2604,6 +2604,10 @@ int Render::mltChangeClipSpeed(ItemInfo info, ItemInfo speedIndependantInfo, dou
         newLength = trackPlaylist.clip_length(clipIndex);
         service.unlock();
     } else if (speed == 1.0 && strobe < 2) {
+	if (!prod || !prod->is_valid()) {
+	    kDebug()<<"// Something is wrong with producer";
+	    return -1;
+	}
         service.lock();
 
         Mlt::Producer *clip = trackPlaylist.replace_with_blank(clipIndex);
-- 
2.39.2