From e13cca4b148fed8a9484d36898621ed68892707a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Reimar=20D=C3=B6ffinger?= <Reimar.Doeffinger@gmx.de>
Date: Sun, 5 Jul 2009 18:27:39 +0000
Subject: [PATCH] Ensure that the filter limit values do not exceed the maximum
 allowed value of 127.

Originally committed as revision 19351 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/vp3.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index 66ac2f9a07..ad32cc9c1f 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -2171,8 +2171,13 @@ static int theora_decode_tables(AVCodecContext *avctx, GetBitContext *gb)
     if (s->theora >= 0x030200) {
         n = get_bits(gb, 3);
         /* loop filter limit values table */
-        for (i = 0; i < 64; i++)
+        for (i = 0; i < 64; i++) {
             s->filter_limit_values[i] = get_bits(gb, n);
+            if (s->filter_limit_values[i] > 127) {
+                av_log(avctx, AV_LOG_ERROR, "filter limit value too large (%i > 127), clamping\n", s->filter_limit_values[i]);
+                s->filter_limit_values[i] = 127;
+            }
+        }
     }
 
     if (s->theora >= 0x030200)