[FFmpeg-cvslog] r28985 - trunk/libswscale/swscale.c

[sdrik]

Author: sdrik
Date: Tue Mar 17 20:51:52 2009
New Revision: 28985

Log:
Don't write outside of the picture buffer in planarCopy in the gray case

Modified:
   trunk/libswscale/swscale.c

Modified: trunk/libswscale/swscale.c
==============================================================================
--- trunk/libswscale/swscale.c	Tue Mar 17 19:44:06 2009	(r28984)
+++ trunk/libswscale/swscale.c	Tue Mar 17 20:51:52 2009	(r28985)
@@ -1934,8 +1934,14 @@ static int planarCopy(SwsContext *c, uin
 
         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
         {