[FFmpeg-cvslog] r17781 - trunk/libavformat/mov.c

[alexc]

Author: alexc
Date: Tue Mar  3 19:19:44 2009
New Revision: 17781

Log:
MOV: fix crash when 'meta' occurs before first 'trak'

Modified:
   trunk/libavformat/mov.c

Modified: trunk/libavformat/mov.c
==============================================================================
--- trunk/libavformat/mov.c	Tue Mar  3 18:06:18 2009	(r17780)
+++ trunk/libavformat/mov.c	Tue Mar  3 19:19:44 2009	(r17781)
@@ -308,10 +308,15 @@ static int mov_read_dref(MOVContext *c, 
 
 static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
 {
-    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+    AVStream *st;
     uint32_t type;
     uint32_t ctype;
 
+    if (c->fc->nb_streams < 1) // meta before first trak
+        return 0;
+
+    st = c->fc->streams[c->fc->nb_streams-1];
+
     get_byte(pb); /* version */
     get_be24(pb); /* flags */