[libav-commits] mpeg12: Pad framerate tab to 16 entries.

Alex Converse git at libav.org
Mon Jan 30 19:24:28 CET 2012


Module: libav
Branch: master
Commit: dfa37fe8a3d9243dd339d94befa065e2c90b29e6

Author:    Alex Converse <alex.converse at gmail.com>
Committer: Alex Converse <alex.converse at gmail.com>
Date:      Fri Jan 27 15:50:24 2012 -0800

mpeg12: Pad framerate tab to 16 entries.

There are many places where we read an unchecked 4-bit index into it.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind

---

 libavcodec/mpeg12data.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavcodec/mpeg12data.c b/libavcodec/mpeg12data.c
index 5ac8c24..a0dd6e5 100644
--- a/libavcodec/mpeg12data.c
+++ b/libavcodec/mpeg12data.c
@@ -305,7 +305,7 @@ const uint8_t ff_mpeg12_mbMotionVectorTable[17][2] = {
 { 0xc, 10 },
 };
 
-const AVRational avpriv_frame_rate_tab[] = {
+const AVRational avpriv_frame_rate_tab[16] = {
     {    0,    0},
     {24000, 1001},
     {   24,    1},



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