From: Baptiste Coudurier <baptiste.coudurier@gmail.com>
Date: Mon, 7 Sep 2009 22:36:33 +0000 (+0000)
Subject: add one missing check for stream existence in read_elst, fix #1364
X-Git-Tag: v0.6~3402
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1c4bf2ec37b296474e9cac8298722609633e5848;p=platform%2Fupstream%2Flibav.git

add one missing check for stream existence in read_elst, fix #1364

Originally committed as revision 19792 to svn://svn.ffmpeg.org/ffmpeg/trunk
---

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 74698e0..5f11ebe 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -1905,9 +1905,13 @@ free_and_return:
 /* edit list atom */
 static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
 {
-    MOVStreamContext *sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
+    MOVStreamContext *sc;
     int i, edit_count;
 
+    if (c->fc->nb_streams < 1)
+        return 0;
+    sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
+
     get_byte(pb); /* version */
     get_be24(pb); /* flags */
     edit_count = get_be32(pb); /* entries */