From 9ae4923673f76d9673d662b32c33134123ff335d Mon Sep 17 00:00:00 2001
From: diego <diego@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Wed, 20 Feb 2008 08:24:26 +0000
Subject: vf_sab mirrors coefficients past the edge of the picture instead of
 cropping:    if     (iy<0)  iy=  -iy;    if(iy>=h) iy= h-iy-1; This produces
 -1,-2,-3... as it goes further past the end of an image, which crashes.
 Change this to h-1,h-2,h-3.. to avoid the crash. patch by Alexander Strange,
 astrange ithinksw com

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@26038 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 libmpcodecs/vf_sab.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'libmpcodecs')

diff --git a/libmpcodecs/vf_sab.c b/libmpcodecs/vf_sab.c
index 5ac3ffa827..f9e624a1d0 100644
--- a/libmpcodecs/vf_sab.c
+++ b/libmpcodecs/vf_sab.c
@@ -203,7 +203,7 @@ if((x/32)&1){
 					int dx;
 					int iy= y+dy - radius;
 					if     (iy<0)  iy=  -iy;
-					else if(iy>=h) iy= h-iy-1;
+					else if(iy>=h) iy= h+h-iy-1;
 
 					for(dx=0; dx<radius*2+1; dx++){
 						const int ix= x+dx - radius;
@@ -220,13 +220,13 @@ if((x/32)&1){
 					int dx;
 					int iy= y+dy - radius;
 					if     (iy<0)  iy=  -iy;
-					else if(iy>=h) iy= h-iy-1;
+					else if(iy>=h) iy= h+h-iy-1;
 
 					for(dx=0; dx<radius*2+1; dx++){
 						int ix= x+dx - radius;
 						int factor;
 						if     (ix<0)  ix=  -ix;
-						else if(ix>=w) ix= w-ix-1;
+						else if(ix>=w) ix= w+w-ix-1;
 
 						factor= f.colorDiffCoeff[256+preVal - f.preFilterBuf[ix + iy*f.preFilterStride] ]
 							*f.distCoeff[dx + dy*f.distStride];
-- 
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