From bfccd76adb514f6bf3dd4bf7f429ca58000f513e Mon Sep 17 00:00:00 2001
From: Justin Ruggles <justin.ruggles@gmail.com>
Date: Sat, 7 Apr 2012 18:36:49 -0400
Subject: [PATCH] smacker: set channel layout

---
 libavformat/smacker.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/libavformat/smacker.c b/libavformat/smacker.c
index dcca1afd37..17c7c529e7 100644
--- a/libavformat/smacker.c
+++ b/libavformat/smacker.c
@@ -24,6 +24,7 @@
  */
 
 #include "libavutil/bswap.h"
+#include "libavutil/channel_layout.h"
 #include "libavutil/intreadwrite.h"
 #include "avformat.h"
 #include "internal.h"
@@ -191,7 +192,13 @@ static int smacker_read_header(AVFormatContext *s)
             } else {
                 ast[i]->codec->codec_id = AV_CODEC_ID_PCM_U8;
             }
-            ast[i]->codec->channels = (smk->aflags[i] & SMK_AUD_STEREO) ? 2 : 1;
+            if (smk->aflags[i] & SMK_AUD_STEREO) {
+                ast[i]->codec->channels       = 2;
+                ast[i]->codec->channel_layout = AV_CH_LAYOUT_STEREO;
+            } else {
+                ast[i]->codec->channels       = 1;
+                ast[i]->codec->channel_layout = AV_CH_LAYOUT_MONO;
+            }
             ast[i]->codec->sample_rate = smk->rates[i];
             ast[i]->codec->bits_per_coded_sample = (smk->aflags[i] & SMK_AUD_16BITS) ? 16 : 8;
             if(ast[i]->codec->bits_per_coded_sample == 16 && ast[i]->codec->codec_id == AV_CODEC_ID_PCM_U8)