Update intra_ext_tx_cdf per frame.

Move computing the intra_ext_tx_cdf tables per symbol to
 computing them only when the probabilities are updated.

Change-Id: I26d5e419e103093e98a7d896c196176305b50fc9

av1/common/entropymode.c

diff --git a/av1/common/entropymode.c b/av1/common/entropymode.c
index a696533..f234e3b 100644
--- a/av1/common/entropymode.c
+++ b/av1/common/entropymode.c
@@ -1284,6 +1284,9 @@
 };
 /* clang-format on */
 
+int av1_ext_tx_ind[TX_TYPES];
+int av1_ext_tx_inv[TX_TYPES];
+
 static const aom_prob
     default_intra_ext_tx_prob[EXT_TX_SIZES][TX_TYPES][TX_TYPES - 1] = {
       { { 240, 85, 128 }, { 4, 1, 248 }, { 4, 1, 8 }, { 4, 248, 128 } },
@@ -1383,6 +1386,8 @@
 #if CONFIG_DAALA_EC
   av1_tree_to_cdf_1D(av1_switchable_interp_tree, fc->switchable_interp_prob,
                      fc->switchable_interp_cdf, SWITCHABLE_FILTER_CONTEXTS);
+  av1_tree_to_cdf_2D(av1_ext_tx_tree, fc->intra_ext_tx_prob,
+                     fc->intra_ext_tx_cdf, EXT_TX_SIZES, TX_TYPES);
 #endif
 }
 
@@ -1578,10 +1583,15 @@
   }
 #else
   for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
-    for (j = 0; j < TX_TYPES; ++j)
+    for (j = 0; j < TX_TYPES; ++j) {
       aom_tree_merge_probs(av1_ext_tx_tree, pre_fc->intra_ext_tx_prob[i][j],
                            counts->intra_ext_tx[i][j],
                            fc->intra_ext_tx_prob[i][j]);
+#if CONFIG_DAALA_EC
+      av1_tree_to_cdf(av1_ext_tx_tree, fc->intra_ext_tx_prob[i][j],
+                      fc->intra_ext_tx_cdf[i][j]);
+#endif
+    }
   }
   for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
     aom_tree_merge_probs(av1_ext_tx_tree, pre_fc->inter_ext_tx_prob[i],