validate-scenario: Fix string usage

Use the string representation of the index if it *IS* present (and
not the opposite).

CID #1415506

diff --git a/validate/gst/validate/gst-validate-scenario.c b/validate/gst/validate/gst-validate-scenario.c
index 3cbd085..c41f73c 100644 (file)
--- a/validate/gst/validate/gst-validate-scenario.c
+++ b/validate/gst/validate/gst-validate-scenario.c
@@ -999,8 +999,9 @@ execute_switch_track_default (GstValidateScenario * scenario,
     GstPad *pad, *cpad, *srcpad;
 
     ret = GST_VALIDATE_EXECUTE_ACTION_OK;
+    str_index = gst_structure_get_string (action->structure, "index");
 
-    if ((str_index = gst_structure_get_string (action->structure, "index"))) {
+    if (str_index == NULL) {
       if (!gst_structure_get_uint (action->structure, "index", &index)) {
         GST_WARNING ("No index given, defaulting to +1");
         index = 1;