avfiltergraph: check query_formats return value.

13 years ago · 6a4c5c730e
parent a3bc7f916d
commit 6a4c5c730e
1 changed files with 4 additions and 2 deletions
--- a/libavfilter/avfiltergraph.c
+++ b/libavfilter/avfiltergraph.c
@ -238,9 +238,11 @@ static int query_formats(AVFilterGraph *graph, AVClass *log_ctx)
    /* ask all the sub-filters for their supported media formats */
    for (i = 0; i < graph->filter_count; i++) {
        if (graph->filters[i]->filter->query_formats)
-            graph->filters[i]->filter->query_formats(graph->filters[i]);
+            ret = graph->filters[i]->filter->query_formats(graph->filters[i]);
        else
-            ff_default_query_formats(graph->filters[i]);
+            ret = ff_default_query_formats(graph->filters[i]);
+        if (ret < 0)
+            return ret;
    }

    /* go through and merge as many format lists as possible */