From baeda2bf92a5de97e497f13ecb04025e27f9be1a Mon Sep 17 00:00:00 2001
From: Stefano Sabatini <stefasab@gmail.com>
Date: Wed, 25 Dec 2013 19:13:23 +0100
Subject: [PATCH] lavfi/volume: fix NULL reference in filter_frame()

Fix crash.
---
 libavfilter/af_volume.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/af_volume.c b/libavfilter/af_volume.c
index 454d46245d..269a2a527a 100644
--- a/libavfilter/af_volume.c
+++ b/libavfilter/af_volume.c
@@ -387,7 +387,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
         av_frame_free(&buf);
 
 end:
-    vol->var_values[VAR_NB_CONSUMED_SAMPLES] += buf->nb_samples;
+    vol->var_values[VAR_NB_CONSUMED_SAMPLES] += out_buf->nb_samples;
     return ff_filter_frame(outlink, out_buf);
 }