From 2c823b3ccca3a9d42d02713fc5ea2538a9b9a99e Mon Sep 17 00:00:00 2001
From: Alex Converse <alex.converse@gmail.com>
Date: Tue, 3 Feb 2009 22:59:47 +0000
Subject: [PATCH] VP3: Prevent stack corruption from an unset custom coding
method.
Originally committed as revision 16978 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/vp3.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index 8dc2da4f03f..c44e6e49b7f 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -741,6 +741,8 @@ static int unpack_modes(Vp3DecodeContext *s, GetBitContext *gb)
/* is it a custom coding scheme? */
if (scheme == 0) {
+ for (i = 0; i < 8; i++)
+ custom_mode_alphabet[i] = MODE_INTER_NO_MV;
for (i = 0; i < 8; i++)
custom_mode_alphabet[get_bits(gb, 3)] = i;
}
--
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