From ec6cda8c6eb644d70ba8f9f931d8d4c5513d449d Mon Sep 17 00:00:00 2001
From: Jai Menon <jmenon86@gmail.com>
Date: Fri, 22 Aug 2008 14:57:35 +0000
Subject: [PATCH] alacenc : perform decorrelation only for stereo samples
Originally committed as revision 14904 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/alacenc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavcodec/alacenc.c b/libavcodec/alacenc.c
index 85adb40a7a6..afa1ac68e00 100644
--- a/libavcodec/alacenc.c
+++ b/libavcodec/alacenc.c
@@ -330,7 +330,8 @@ static void write_compressed_frame(AlacEncodeContext *s)
int i, j;
/* only simple mid/side decorrelation supported as of now */
- alac_stereo_decorrelation(s);
+ if(s->avctx->channels == 2)
+ alac_stereo_decorrelation(s);
put_bits(&s->pbctx, 8, s->interlacing_shift);
put_bits(&s->pbctx, 8, s->interlacing_leftweight);
--
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