From dd1a74d25decd6eaa7c78a7062fa12edb043efaf Mon Sep 17 00:00:00 2001
From: "jwestfall@surrealistic.net" <jwestfall@surrealistic.net>
Date: Sat, 14 Jan 2006 17:43:22 +0000
Subject: [PATCH] Off by one fix to prevent possible segfault. Patch by
jwestfall at surrealistic dot net.
Originally committed as revision 4857 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/mpeg12.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c
index 514ff29318c..c582ad7a0dc 100644
--- a/libavcodec/mpeg12.c
+++ b/libavcodec/mpeg12.c
@@ -2178,7 +2178,7 @@ static int find_start_code(const uint8_t **pbuf_ptr, const uint8_t *buf_end)
const uint8_t *buf_ptr= *pbuf_ptr;
buf_ptr++; //gurantees that -1 is within the array
- buf_end -= 2; // gurantees that +2 is within the array
+ buf_end -= 3; // gurantees that +3 is within the array
while (buf_ptr < buf_end) {
if(*buf_ptr==0){
@@ -2192,7 +2192,7 @@ static int find_start_code(const uint8_t **pbuf_ptr, const uint8_t *buf_end)
}
buf_ptr += 2;
}
- buf_end += 2; //undo the hack above
+ buf_end += 3; //undo the hack above
*pbuf_ptr = buf_end;
return -1;
--
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