From baf5ee6d67308aea8b45db1b2ea6ff0fa5d9a4fc Mon Sep 17 00:00:00 2001
From: sdrik <sdrik@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Tue, 17 Mar 2009 19:51:52 +0000
Subject: Don't write outside of the picture buffer in planarCopy in the gray
 case

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@28985 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 libswscale/swscale.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index c6012c15b7..8728e2bb6c 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -1934,8 +1934,14 @@ static int planarCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSli
 
         if ((isGray(c->srcFormat) || isGray(c->dstFormat)) && plane>0)
         {
-            if (!isGray(c->dstFormat))
-                memset(dst[plane], 128, dstStride[plane]*height);
+            if (!isGray(c->dstFormat)){
+                int i;
+                uint8_t *ptr = dst[plane] + dstStride[plane]*y;
+                for (i=0; i<height; i++){
+                    memset(ptr, 128, length);
+                    ptr += dstStride[plane];
+                }
+            }
         }
         else
         {
-- 
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