Make vorbis_synthesis_trackonly error handling match vorbis_synthesis per Mozilla...

svn path=/trunk/vorbis/; revision=17474

diff --git a/lib/synthesis.c b/lib/synthesis.c
index bcf99c5..6ed554d 100644 (file)
--- 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);