From f0e959481968b6d906931127237ed981b6414f6e Mon Sep 17 00:00:00 2001
From: Luca Barbato <lu_zero@gentoo.org>
Date: Fri, 1 Aug 2014 23:32:40 +0200
Subject: [PATCH] af_channelmap: Set the frame channel layout

Otherwise the frame would show the first layout matching the
channel count.
---
 libavfilter/af_channelmap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavfilter/af_channelmap.c b/libavfilter/af_channelmap.c
index 3e5cc3d7e4..3035405f5d 100644
--- a/libavfilter/af_channelmap.c
+++ b/libavfilter/af_channelmap.c
@@ -342,6 +342,8 @@ static int channelmap_filter_frame(AVFilterLink *inlink, AVFrame *buf)
         memcpy(buf->data, buf->extended_data,
            FFMIN(FF_ARRAY_ELEMS(buf->data), nch_out) * sizeof(buf->data[0]));
 
+    buf->channel_layout = outlink->channel_layout;
+
     return ff_filter_frame(outlink, buf);
 }