diff --git a/vp9/common/vp9_blockd.h b/vp9/common/vp9_blockd.h
index 2a0ebfba0f056a9a9a16178790f609e2d1711739..84403ae15f904a948fef305100be45d85bee489b 100644
--- a/vp9/common/vp9_blockd.h
+++ b/vp9/common/vp9_blockd.h
@@ -255,7 +255,16 @@ static INLINE BLOCK_SIZE get_subsize(BLOCK_SIZE bsize,
   return subsize;
 }
 
-extern const TX_TYPE mode2txfm_map[MB_MODE_COUNT];
+extern const TX_TYPE mode2txfm_map[INTRA_MODES];
+
+static INLINE TX_TYPE get_tx_type(PLANE_TYPE plane_type,
+                                  const MACROBLOCKD *xd) {
+  const MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi;
+
+  if (plane_type != PLANE_TYPE_Y || is_inter_block(mbmi))
+    return DCT_DCT;
+  return mode2txfm_map[mbmi->mode];
+}
 
 static INLINE TX_TYPE get_tx_type_4x4(PLANE_TYPE plane_type,
                                       const MACROBLOCKD *xd, int ib) {
@@ -267,18 +276,6 @@ static INLINE TX_TYPE get_tx_type_4x4(PLANE_TYPE plane_type,
   return mode2txfm_map[get_y_mode(mi, ib)];
 }
 
-static INLINE TX_TYPE get_tx_type_8x8(PLANE_TYPE plane_type,
-                                      const MACROBLOCKD *xd) {
-  return plane_type == PLANE_TYPE_Y ? mode2txfm_map[xd->mi_8x8[0]->mbmi.mode]
-                                    : DCT_DCT;
-}
-
-static INLINE TX_TYPE get_tx_type_16x16(PLANE_TYPE plane_type,
-                                        const MACROBLOCKD *xd) {
-  return plane_type == PLANE_TYPE_Y ? mode2txfm_map[xd->mi_8x8[0]->mbmi.mode]
-                                    : DCT_DCT;
-}
-
 void vp9_setup_block_planes(MACROBLOCKD *xd, int ss_x, int ss_y);
 
 static INLINE TX_SIZE get_uv_tx_size_impl(TX_SIZE y_tx_size, BLOCK_SIZE bsize) {
diff --git a/vp9/common/vp9_reconintra.c b/vp9/common/vp9_reconintra.c
index 71a41a9dee646f20bf02c9ea786ea58361ed2e9d..86f4f35784120439c5936e29b48db9456c1c8577 100644
--- a/vp9/common/vp9_reconintra.c
+++ b/vp9/common/vp9_reconintra.c
@@ -18,21 +18,17 @@
 #include "vp9/common/vp9_reconintra.h"
 #include "vp9/common/vp9_onyxc_int.h"
 
-const TX_TYPE mode2txfm_map[MB_MODE_COUNT] = {
-    DCT_DCT,    // DC
-    ADST_DCT,   // V
-    DCT_ADST,   // H
-    DCT_DCT,    // D45
-    ADST_ADST,  // D135
-    ADST_DCT,   // D117
-    DCT_ADST,   // D153
-    DCT_ADST,   // D207
-    ADST_DCT,   // D63
-    ADST_ADST,  // TM
-    DCT_DCT,    // NEARESTMV
-    DCT_DCT,    // NEARMV
-    DCT_DCT,    // ZEROMV
-    DCT_DCT     // NEWMV
+const TX_TYPE mode2txfm_map[INTRA_MODES] = {
+  DCT_DCT,    // DC
+  ADST_DCT,   // V
+  DCT_ADST,   // H
+  DCT_DCT,    // D45
+  ADST_ADST,  // D135
+  ADST_DCT,   // D117
+  DCT_ADST,   // D153
+  DCT_ADST,   // D207
+  ADST_DCT,   // D63
+  ADST_ADST,  // TM
 };
 
 #define intra_pred_sized(type, size) \
diff --git a/vp9/decoder/vp9_decodeframe.c b/vp9/decoder/vp9_decodeframe.c
index 8bebca51acd393b1bdb3fc42169d197efb3353f0..54a14f381a4fb18fa26b668511797f38d1aa76f1 100644
--- a/vp9/decoder/vp9_decodeframe.c
+++ b/vp9/decoder/vp9_decodeframe.c
@@ -245,11 +245,11 @@ static void inverse_transform_block(MACROBLOCKD* xd, int plane, int block,
           vp9_iht4x4_16_add(dqcoeff, dst, stride, tx_type);
         break;
       case TX_8X8:
-        tx_type = get_tx_type_8x8(plane_type, xd);
+        tx_type = get_tx_type(plane_type, xd);
         vp9_iht8x8_add(tx_type, dqcoeff, dst, stride, eob);
         break;
       case TX_16X16:
-        tx_type = get_tx_type_16x16(plane_type, xd);
+        tx_type = get_tx_type(plane_type, xd);
         vp9_iht16x16_add(tx_type, dqcoeff, dst, stride, eob);
         break;
       case TX_32X32:
diff --git a/vp9/encoder/vp9_encodemb.c b/vp9/encoder/vp9_encodemb.c
index 513730e437c44fb0a8a690702997dadd1ec861f2..19dee0ef8adb7fdb5f779799ad9586f72b5aba45 100644
--- a/vp9/encoder/vp9_encodemb.c
+++ b/vp9/encoder/vp9_encodemb.c
@@ -526,7 +526,7 @@ static void encode_block_intra(int plane, int block, BLOCK_SIZE plane_bsize,
         vp9_idct32x32_add(dqcoeff, dst, dst_stride, *eob);
       break;
     case TX_16X16:
-      tx_type = get_tx_type_16x16(pd->plane_type, xd);
+      tx_type = get_tx_type(pd->plane_type, xd);
       scan_order = &vp9_scan_orders[TX_16X16][tx_type];
       mode = plane == 0 ? mbmi->mode : mbmi->uv_mode;
       vp9_predict_intra_block(xd, block >> 4, bwl, TX_16X16, mode,
@@ -546,7 +546,7 @@ static void encode_block_intra(int plane, int block, BLOCK_SIZE plane_bsize,
         vp9_iht16x16_add(tx_type, dqcoeff, dst, dst_stride, *eob);
       break;
     case TX_8X8:
-      tx_type = get_tx_type_8x8(pd->plane_type, xd);
+      tx_type = get_tx_type(pd->plane_type, xd);
       scan_order = &vp9_scan_orders[TX_8X8][tx_type];
       mode = plane == 0 ? mbmi->mode : mbmi->uv_mode;
       vp9_predict_intra_block(xd, block >> 2, bwl, TX_8X8, mode,