From 8b19ae07616bbd18969b94cbf5d74308a8f2bbdf Mon Sep 17 00:00:00 2001
From: Mans Rullgard <mans@mansr.com>
Date: Sat, 8 Oct 2011 01:59:51 +0100
Subject: [PATCH] crc: fix signed overflow
This fixes a signed overflow from i << 24 when i == 255 by
making i unsigned. The result of the shift is already
assigned to an variable of unsigned type.
Signed-off-by: Mans Rullgard <mans@mansr.com>
---
libavutil/crc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavutil/crc.c b/libavutil/crc.c
index 6c9f92809f7..44719ffaee3 100644
--- a/libavutil/crc.c
+++ b/libavutil/crc.c
@@ -57,7 +57,7 @@ static AVCRC av_crc_table[AV_CRC_MAX][257];
* @return <0 on failure
*/
int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size){
- int i, j;
+ unsigned i, j;
uint32_t c;
if (bits < 8 || bits > 32 || poly >= (1LL<<bits))
--
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