Fix crash on audio thumbs for playlists:http://kdenlive.org/mantis/view.php?id=2911

[kdenlive] / src / renderer.cpp

diff --git a/src/renderer.cpp b/src/renderer.cpp
index 6ba456ff1c4daa3048e00fa812cb384db3dbce4b..ca7f0d82d3b71f6c1b08e056cf7e6afed8198397 100644 (file)
--- a/src/renderer.cpp
+++ b/src/renderer.cpp
@@ -990,8 +990,8 @@ void Render::processFileProperties()
            // keep for compatibility with MLT <= 0.8.6
            if (af == 0) af = frame->get_int("frequency");
            if (ac == 0) ac = frame->get_int("channels");
-            filePropertyMap["frequency"] = QString::number(af);
-            filePropertyMap["channels"] = QString::number(ac);
+            if (af > 0) filePropertyMap["frequency"] = QString::number(af);
+            if (ac > 0) filePropertyMap["channels"] = QString::number(ac);
             if (!filePropertyMap.contains("aspect_ratio")) filePropertyMap["aspect_ratio"] = frame->get("aspect_ratio");
 
             if (frame->get_int("test_image") == 0) {