From 52853077ee49db8ecb6f83d0f9a177708b5d93a6 Mon Sep 17 00:00:00 2001
From: Nicolas George <nicolas.george@normalesup.org>
Date: Sun, 31 Mar 2013 19:28:11 +0200
Subject: [PATCH] lavfi/af_asetnsamples: fix EOF handling.

Only filter one buffered frame.
Correctly return EOF if there is none.
---
 libavfilter/af_asetnsamples.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/libavfilter/af_asetnsamples.c b/libavfilter/af_asetnsamples.c
index 08e5279989..e004453642 100644
--- a/libavfilter/af_asetnsamples.c
+++ b/libavfilter/af_asetnsamples.c
@@ -171,9 +171,8 @@ static int request_frame(AVFilterLink *outlink)
     } while (!asns->req_fullfilled && ret >= 0);
 
     if (ret == AVERROR_EOF) {
-        do {
-            ret = push_samples(outlink);
-        } while (ret > 0);
+        ret = push_samples(outlink);
+        return ret < 0 ? ret : ret > 0 ? 0 : AVERROR_EOF;
     }
 
     return ret;