From c563d6fe5a511dd4950497206f7f11be45f3f78d Mon Sep 17 00:00:00 2001
From: Gregory Maxwell <greg@xiph.org>
Date: Thu, 30 Sep 2010 03:41:41 +0000
Subject: [PATCH] Make vorbis_synthesis_trackonly error handling match
 vorbis_synthesis per Mozilla bug487519.patch

svn path=/trunk/vorbis/; revision=17474
---
 lib/synthesis.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/synthesis.c b/lib/synthesis.c
index bcf99c5..6ed554d 100644
--- a/lib/synthesis.c
+++ b/lib/synthesis.c
@@ -114,6 +114,10 @@ int vorbis_synthesis_trackonly(vorbis_block *vb,ogg_packet *op){
   if(mode==-1)return(OV_EBADPACKET);
 
   vb->mode=mode;
+  if(!ci->mode_param[mode]){
+    return(OV_EBADPACKET);
+  }
+  
   vb->W=ci->mode_param[mode]->blockflag;
   if(vb->W){
     vb->lW=oggpack_read(opb,1);
-- 
2.7.4