Fixed pitchEnd wrt to variable frame size. It should (sort of) all work now
diff --git a/libcelt/modes.c b/libcelt/modes.c
index 46b027a..69165a1 100644
--- a/libcelt/modes.c
+++ b/libcelt/modes.c
@@ -343,7 +343,7 @@
    if (mode->eBands==NULL)
       goto failure;
 
-   mode->pitchEnd = 4000*(celt_int32)frame_size/Fs;
+   mode->pitchEnd = 4000*(celt_int32)mode->shortMdctSize/Fs;
    
    /* Overlap must be divisible by 4 */
    if (mode->nbShortMdcts > 1)