From cacb82134e486284438ff23395faa746f461e657 Mon Sep 17 00:00:00 2001
From: Kenan Gillet <kenan.gillet@gmail.com>
Date: Mon, 23 Feb 2009 22:19:16 +0000
Subject: Change sign in ff_celp_lp_synthesis_filterf(). This makes this
 function useful for AMR and RA144.

Patch by Kenan Gillet

Originally committed as revision 17546 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/celp_filters.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libavcodec/celp_filters.c')

diff --git a/libavcodec/celp_filters.c b/libavcodec/celp_filters.c
index 3d983c4f75..a48368f242 100644
--- a/libavcodec/celp_filters.c
+++ b/libavcodec/celp_filters.c
@@ -102,6 +102,6 @@ void ff_celp_lp_synthesis_filterf(
     {
         out[n] = in[n];
         for(i=1; i<filter_length; i++)
-            out[n] += filter_coeffs[i] * out[n-i];
+            out[n] -= filter_coeffs[i] * out[n-i];
     }
 }
-- 
cgit v1.2.3