From 1b7bc4a2455f7efc8b29e6f9c2dc22eff3c84e27 Mon Sep 17 00:00:00 2001
From: Justin Ruggles <justin.ruggles@gmail.com>
Date: Sat, 18 Apr 2009 18:51:01 +0000
Subject: [PATCH] Add 3 channel layout convenience macros.

Originally committed as revision 18609 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/audioconvert.c | 1 +
 libavcodec/avcodec.h      | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/libavcodec/audioconvert.c b/libavcodec/audioconvert.c
index 94c06f83df8..b0a8afacb4f 100644
--- a/libavcodec/audioconvert.c
+++ b/libavcodec/audioconvert.c
@@ -108,6 +108,7 @@ static const struct {
     { "mono",        1,  CH_LAYOUT_MONO },
     { "stereo",      2,  CH_LAYOUT_STEREO },
     { "surround",    3,  CH_LAYOUT_SURROUND },
+    { "4.0",         4,  CH_LAYOUT_4POINT0 },
     { "quad",        4,  CH_LAYOUT_QUAD },
     { "5.0",         5,  CH_LAYOUT_5POINT0 },
     { "5.0",         5,  CH_LAYOUT_5POINT0_BACK },
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 05027bacdf8..c5632c8d05d 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -30,7 +30,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVCODEC_VERSION_MAJOR 52
-#define LIBAVCODEC_VERSION_MINOR 26
+#define LIBAVCODEC_VERSION_MINOR 27
 #define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
@@ -380,7 +380,10 @@ enum SampleFormat {
 /* Audio channel convenience macros */
 #define CH_LAYOUT_MONO              (CH_FRONT_CENTER)
 #define CH_LAYOUT_STEREO            (CH_FRONT_LEFT|CH_FRONT_RIGHT)
+#define CH_LAYOUT_2_1               (CH_LAYOUT_STEREO|CH_BACK_CENTER)
 #define CH_LAYOUT_SURROUND          (CH_LAYOUT_STEREO|CH_FRONT_CENTER)
+#define CH_LAYOUT_4POINT0           (CH_LAYOUT_SURROUND|CH_BACK_CENTER)
+#define CH_LAYOUT_2_2               (CH_LAYOUT_STEREO|CH_SIDE_LEFT|CH_SIDE_RIGHT)
 #define CH_LAYOUT_QUAD              (CH_LAYOUT_STEREO|CH_BACK_LEFT|CH_BACK_RIGHT)
 #define CH_LAYOUT_5POINT0           (CH_LAYOUT_SURROUND|CH_SIDE_LEFT|CH_SIDE_RIGHT)
 #define CH_LAYOUT_5POINT1           (CH_LAYOUT_5POINT0|CH_LOW_FREQUENCY)
-- 
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