libs: postproc: fix a memory leak point.

filter_ops and filter_formats should already have valid value when
the function gst_vaapipostproc_ensure_filter_caps re-enter

diff --git a/gst/vaapi/gstvaapipostproc.c b/gst/vaapi/gstvaapipostproc.c
index b852e89..b1750d0 100644 (file)
--- a/gst/vaapi/gstvaapipostproc.c
+++ b/gst/vaapi/gstvaapipostproc.c
@@ -246,13 +246,17 @@ gst_vaapipostproc_ensure_filter_caps (GstVaapiPostproc * postproc)
   if (!gst_vaapipostproc_ensure_filter (postproc))
     return FALSE;
 
-  postproc->filter_ops = gst_vaapi_filter_get_operations (postproc->filter);
-  if (!postproc->filter_ops)
-    return FALSE;
+  if (!postproc->filter_ops) {
+    postproc->filter_ops = gst_vaapi_filter_get_operations (postproc->filter);
+    if (!postproc->filter_ops)
+      return FALSE;
+  }
 
-  postproc->filter_formats = gst_vaapi_filter_get_formats (postproc->filter);
-  if (!postproc->filter_formats)
-    return FALSE;
+  if (!postproc->filter_formats) {
+    postproc->filter_formats = gst_vaapi_filter_get_formats (postproc->filter);
+    if (!postproc->filter_formats)
+      return FALSE;
+  }
   return TRUE;
 }