From cd1a9908b5def9df3692e92ded565e233fed6054 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Sun, 28 Jun 2015 02:31:26 +0200
Subject: [PATCH] avcodec/jpeg2000: support >32bit in ff_jpeg2000_ceildivpow2()
Fixes part of Ticket4680
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavcodec/jpeg2000.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/jpeg2000.h b/libavcodec/jpeg2000.h
index a99c210bc86..541ea5c8f46 100644
--- a/libavcodec/jpeg2000.h
+++ b/libavcodec/jpeg2000.h
@@ -215,7 +215,7 @@ typedef struct Jpeg2000Component {
/* misc tools */
static inline int ff_jpeg2000_ceildivpow2(int a, int b)
{
- return -((-a) >> b);
+ return -(((int64_t)(-a)) >> b);
}
static inline int ff_jpeg2000_ceildiv(int a, int b)
--
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