1 files changed, 10 insertions, 0 deletions
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 50472451bc..5234a66201 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -699,6 +699,11 @@ struct AVFilterLink {
      * filter.
      */
     int closed;
+
+    /**
+     * Number of channels.
+     */
+    int channels;
 };
 
 /**
@@ -719,6 +724,11 @@ int avfilter_link(AVFilterContext *src, unsigned srcpad,
 void avfilter_link_free(AVFilterLink **link);
 
 /**
+ * Get the number of channels of a link.
+ */
+int avfilter_link_get_channels(AVFilterLink *link);
+
+/**
  * Set the closed field of a link.
  */
 void avfilter_link_set_closed(AVFilterLink *link, int closed);