From 0063c05c67a6339a9cc7252f9c40090dc48737a4 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Thu, 29 Nov 2007 15:09:24 +0000
Subject: [PATCH] fix segfault with interlaced h.264
Originally committed as revision 11113 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/mpegvideo.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index e0022f74f37..f4d5e58c542 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -229,8 +229,8 @@ int alloc_picture(MpegEncContext *s, Picture *pic, int shared){
CHECKED_ALLOCZ(pic->mbskip_table , mb_array_size * sizeof(uint8_t)+2) //the +2 is for the slice end check
CHECKED_ALLOCZ(pic->qscale_table , mb_array_size * sizeof(uint8_t))
- CHECKED_ALLOCZ(pic->mb_type_base , big_mb_num * sizeof(uint32_t))
- pic->mb_type= pic->mb_type_base + s->mb_stride+1;
+ CHECKED_ALLOCZ(pic->mb_type_base , (big_mb_num + s->mb_stride) * sizeof(uint32_t))
+ pic->mb_type= pic->mb_type_base + 2*s->mb_stride+1;
if(s->out_format == FMT_H264){
for(i=0; i<2; i++){
CHECKED_ALLOCZ(pic->motion_val_base[i], 2 * (b4_array_size+4) * sizeof(int16_t))
--
GitLab