From: Alex Converse <alex.converse@gmail.com>
Date: Tue, 3 Feb 2009 22:59:47 +0000 (+0000)
Subject: VP3: Prevent stack corruption from an unset custom coding method.
X-Git-Tag: v0.5~800
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2c823b3ccca3a9d42d02713fc5ea2538a9b9a99e;p=platform%2Fupstream%2Flibav.git

VP3: Prevent stack corruption from an unset custom coding method.

Originally committed as revision 16978 to svn://svn.ffmpeg.org/ffmpeg/trunk
---

diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index 8dc2da4f0..c44e6e49b 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;
         }