From d44bd7fb27d4121512eae0ffce5e48bac25e82dc Mon Sep 17 00:00:00 2001
From: Vittorio Giovara <vittorio.giovara@gmail.com>
Date: Wed, 18 Dec 2013 11:40:38 +0100
Subject: [PATCH] avfilter: add documentation for needs_writable

---
 libavfilter/avfilter.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 9f14afd..1b42086 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -358,6 +358,12 @@ struct AVFilterPad {
      */
     int needs_fifo;
 
+    /**
+     * The filter expects writable frames from its input link,
+     * duplicating data buffers if needed.
+     *
+     * input pads only.
+     */
     int needs_writable;
 };
 #endif
-- 
2.7.4