1 files changed, 61 insertions, 0 deletions

diff --git a/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-huffyuvdec-Skip-len-0-cases.patch b/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-huffyuvdec-Skip-len-0-cases.patch
new file mode 100644
index 0000000000..94bf4b6fba
--- /dev/null
+++ b/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-huffyuvdec-Skip-len-0-cases.patch
@@ -0,0 +1,61 @@
+From db0f7f7394e1f994ed38db043f78ed0f10bde0da Mon Sep 17 00:00:00 2001
+From: Michael Niedermayer <michaelni@gmx.at>
+Date: Tue, 29 Jan 2013 19:22:33 +0100
+Subject: [PATCH] huffyuvdec: Skip len==0 cases
+
+Upstream-Status: Backport
+
+Commit db0f7f7394e1f994ed38db043f78ed0f10bde0da release/1.0
+
+Fixes vlc decoding for hypothetical files that would contain such cases.
+
+Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
+(cherry picked from commit 0dfc01c2bbf4b71bb56201bc4a393321e15d1b31)
+
+Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
+---
+ libavcodec/huffyuv.c | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/libavcodec/huffyuv.c b/libavcodec/huffyuv.c
+index 993e524..72ed351 100644
+--- a/gst-libs/ext/libav/libavcodec/huffyuv.c
++++ b/gst-libs/ext/libav/libavcodec/huffyuv.c
+@@ -281,11 +281,11 @@ static void generate_joint_tables(HYuvCo
+             for(i=y=0; y<256; y++){
+                 int len0 = s->len[0][y];
+                 int limit = VLC_BITS - len0;
+-                if(limit <= 0)
++                if(limit <= 0 || !len0)
+                     continue;
+                 for(u=0; u<256; u++){
+                     int len1 = s->len[p][u];
+-                    if(len1 > limit)
++                    if (len1 > limit || !len1)
+                         continue;
+                     len[i] = len0 + len1;
+                     bits[i] = (s->bits[0][y] << len1) + s->bits[p][u];
+@@ -308,17 +308,17 @@ static void generate_joint_tables(HYuvCo
+         for(i=0, g=-16; g<16; g++){
+             int len0 = s->len[p0][g&255];
+             int limit0 = VLC_BITS - len0;
+-            if(limit0 < 2)
++            if (limit0 < 2 || !len0)
+                 continue;
+             for(b=-16; b<16; b++){
+                 int len1 = s->len[p1][b&255];
+                 int limit1 = limit0 - len1;
+-                if(limit1 < 1)
++                if (limit1 < 1 || !len1)
+                     continue;
+                 code = (s->bits[p0][g&255] << len1) + s->bits[p1][b&255];
+                 for(r=-16; r<16; r++){
+                     int len2 = s->len[2][r&255];
+-                    if(len2 > limit1)
++                    if (len2 > limit1 || !len2)
+                         continue;
+                     len[i] = len0 + len1 + len2;
+                     bits[i] = (code << len2) + s->bits[2][r&255];
+-- 
+1.8.5.2.233.g932f7e4
+