Add new 32-point Type-IV DST to daala_tx.

Change-Id: I75ce79db34789151cc4cc9183a550f59e1357bfe

av1/common/blockd.h

@@ -948,6 +948,16 @@ static INLINE TxSetType get_ext_tx_set_type(TX_SIZE tx_size, BLOCK_SIZE bs,
       return EXT_TX_SET_MRC_DCT;
   }
 #endif  // CONFIG_MRC_TX
+#if CONFIG_DAALA_TX32
+  if (tx_size_sqr_up > TX_32X32)
+    return is_inter ? EXT_TX_SET_DCT_IDTX : EXT_TX_SET_DCTONLY;
+  if (is_inter)
+    return (tx_size_sqr >= TX_16X16 ? EXT_TX_SET_DTT9_IDTX_1DDCT
+                                    : EXT_TX_SET_ALL16);
+  else
+    return (tx_size_sqr >= TX_16X16 ? EXT_TX_SET_DTT4_IDTX
+                                    : EXT_TX_SET_DTT4_IDTX_1DDCT);
+#endif
   if (tx_size_sqr_up == TX_32X32)
     return is_inter ? EXT_TX_SET_DCT_IDTX : EXT_TX_SET_DCTONLY;
   if (is_inter)