From 2aadff2e44fa27664ccd1b0a63829e61bf82e939 Mon Sep 17 00:00:00 2001
From: Maksym Veremeyenko <verem@m1stereo.tv>
Date: Mon, 23 Jan 2012 13:59:37 +0200
Subject: [PATCH] limit chunk size to 1GB

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavformat/movenc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 276353143f..06d18f91f8 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -1948,7 +1948,8 @@ static void build_chunks(MOVTrack *trk)
     chunk->chunkNum= 1;
     trk->chunkCount= 1;
     for(i=1; i<trk->entry; i++){
-        if(chunk->pos + chunkSize == trk->cluster[i].pos){
+        if(chunk->pos + chunkSize == trk->cluster[i].pos &&
+            chunkSize + trk->cluster[i].size < UINT32_MAX / 4){
             chunkSize             += trk->cluster[i].size;
             chunk->samplesInChunk += trk->cluster[i].entries;
         }else{