From 3d68f5e032c845467e107a19393b270f82034eac Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Sat, 30 Mar 2013 20:57:40 +0100
Subject: [PATCH] h264_direct: assert the validity of the spatial ref

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavcodec/h264_direct.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/h264_direct.c b/libavcodec/h264_direct.c
index 2f49d0ae6f..2d93c2ab60 100644
--- a/libavcodec/h264_direct.c
+++ b/libavcodec/h264_direct.c
@@ -209,6 +209,7 @@ static void pred_spatial_direct_motion(H264Context * const h, int *mb_type){
                     mv[list]= AV_RN32A(C);
                 }
             }
+            av_assert2(ref[list] < (h->ref_count[list] << !!FRAME_MBAFF(h)));
         }else{
             int mask= ~(MB_TYPE_L0 << (2*list));
             mv[list] = 0;