1 files changed, 22 insertions, 6 deletions
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
index 8d2312e05d..da5015ca88 100644
--- a/libavfilter/avfiltergraph.c
+++ b/libavfilter/avfiltergraph.c
@@ -102,7 +102,15 @@ void avfilter_graph_set_auto_convert(AVFilterGraph *graph, unsigned flags)
     graph->disable_auto_convert = flags;
 }
 
-int ff_avfilter_graph_check_validity(AVFilterGraph *graph, AVClass *log_ctx)
+/**
+ * Check for the validity of graph.
+ *
+ * A graph is considered valid if all its input and output pads are
+ * connected.
+ *
+ * @return 0 in case of success, a negative value otherwise
+ */
+static int graph_check_validity(AVFilterGraph *graph, AVClass *log_ctx)
 {
     AVFilterContext *filt;
     int i, j;
@@ -132,7 +140,12 @@ int ff_avfilter_graph_check_validity(AVFilterGraph *graph, AVClass *log_ctx)
     return 0;
 }
 
-int ff_avfilter_graph_config_links(AVFilterGraph *graph, AVClass *log_ctx)
+/**
+ * Configure all the links of graphctx.
+ *
+ * @return 0 in case of success, a negative value otherwise
+ */
+static int graph_config_links(AVFilterGraph *graph, AVClass *log_ctx)
 {
     AVFilterContext *filt;
     int i, ret;
@@ -688,7 +701,10 @@ static int pick_formats(AVFilterGraph *graph)
     return 0;
 }
 
-int ff_avfilter_graph_config_formats(AVFilterGraph *graph, AVClass *log_ctx)
+/**
+ * Configure the formats of all the links in the graph.
+ */
+static int graph_config_formats(AVFilterGraph *graph, AVClass *log_ctx)
 {
     int ret;
 
@@ -759,11 +775,11 @@ int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx)
 {
     int ret;
 
-    if ((ret = ff_avfilter_graph_check_validity(graphctx, log_ctx)))
+    if ((ret = graph_check_validity(graphctx, log_ctx)))
         return ret;
-    if ((ret = ff_avfilter_graph_config_formats(graphctx, log_ctx)))
+    if ((ret = graph_config_formats(graphctx, log_ctx)))
         return ret;
-    if ((ret = ff_avfilter_graph_config_links(graphctx, log_ctx)))
+    if ((ret = graph_config_links(graphctx, log_ctx)))
         return ret;
     if ((ret = ff_avfilter_graph_config_pointers(graphctx, log_ctx)))
         return ret;