From 791de61bbb0d2bceb1037597b310e2a4a94494fd Mon Sep 17 00:00:00 2001
From: "Ronald S. Bultje" <rsbultje@gmail.com>
Date: Tue, 28 Feb 2012 18:21:31 -0800
Subject: swscale: fix another integer overflow.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
---
 libswscale/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libswscale/utils.c')

diff --git a/libswscale/utils.c b/libswscale/utils.c
index 3b488ca44f..7c89a70953 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -1014,7 +1014,7 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
     c->vLumBufSize= c->vLumFilterSize;
     c->vChrBufSize= c->vChrFilterSize;
     for (i=0; i<dstH; i++) {
-        int chrI= i*c->chrDstH / dstH;
+        int chrI = (int64_t) i * c->chrDstH / dstH;
         int nextSlice= FFMAX(c->vLumFilterPos[i   ] + c->vLumFilterSize - 1,
                            ((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)<<c->chrSrcVSubSample));
 
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