From fbf2284cd242e4d2b1051bc760e6393c0897b080 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Wed, 18 Feb 2004 16:26:16 +0000
Subject: [PATCH] check if threads_count is too large

Originally committed as revision 2798 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/mpegvideo.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index db46596862..1f8455a47c 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -886,6 +886,11 @@ int MPV_encode_init(AVCodecContext *avctx)
         return -1;
     }
     
+    if(s->avctx->thread_count > MAX_THREADS || 16*s->avctx->thread_count > s->height){
+        av_log(avctx, AV_LOG_ERROR, "too many threads\n");
+        return -1;
+    }
+    
     if(s->avctx->thread_count > 1)
         s->rtp_mode= 1;