Patch for trac #1965; clarify in comments and docs that a failed call

[platform/upstream/libvorbis.git] / lib / floor0.c

diff --git a/lib/floor0.c b/lib/floor0.c
index c22213b..99a083b 100644 (file)
--- a/lib/floor0.c
+++ b/lib/floor0.c
@@ -177,10 +177,9 @@ static void *floor0_inverse1(vorbis_block *vb,vorbis_look_floor *i){
          vector */
       float *lsp=_vorbis_block_alloc(vb,sizeof(*lsp)*(look->m+b->dim+1));
 
-      for(j=0;j<look->m;j+=b->dim)
-        if(vorbis_book_decodev_set(b,lsp+j,&vb->opb,b->dim)==-1)goto eop;
+      if(vorbis_book_decodev_set(b,lsp,&vb->opb,look->m)==-1)goto eop;
       for(j=0;j<look->m;){
-        for(k=0;k<b->dim;k++,j++)lsp[j]+=last;
+        for(k=0;j<look->m && k<b->dim;k++,j++)lsp[j]+=last;
         last=lsp[j-1];
       }