avfilter: Properly check for failed format query

Signed-off-by: Derek Buitenhuis <[email protected]>
xiang1912 · Oct 2, 2014 · 23c9ebf · 23c9ebf
1 parent 1dbc3e8
commit 23c9ebf
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
@@ -559,7 +559,9 @@ static int query_formats(AVFilterGraph *graph, AVClass *log_ctx)
                 if ((ret = avfilter_insert_filter(link, convert, 0, 0)) < 0)
                     return ret;
 
-                filter_query_formats(convert);
+                if ((ret = filter_query_formats(convert)) < 0)
+                    return ret;
+
                 inlink  = convert->inputs[0];
                 outlink = convert->outputs[0];
                 av_assert0( inlink-> in_formats->refcount > 0);