From cfe64613923a2d47644a87386146ada1f9f6b659 Mon Sep 17 00:00:00 2001
From: Federico Tomassetti <federico@tomassetti.me>
Date: Sat, 21 Mar 2015 10:44:57 +0000
Subject: avfilter: Document avfilter_graph_alloc return value

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
---
 libavfilter/avfilter.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'libavfilter/avfilter.h')

diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 1b42086611..5c41630909 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -1004,6 +1004,8 @@ typedef struct AVFilterGraph {
 
 /**
  * Allocate a filter graph.
+ *
+ * @return the allocated filter graph on success or NULL.
  */
 AVFilterGraph *avfilter_graph_alloc(void);
 
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