Use local variable in vp9_rd_pick_inter_mode_sb

Change-Id: Ie35a965a6b8de536ccaf61ff61498620d22db205

vp9/encoder/vp9_rdopt.c

@@ -2871,7 +2871,6 @@ int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
   MACROBLOCKD *const xd = &x->e_mbd;
   MB_MODE_INFO *const mbmi = &xd->mi[0].src_mi->mbmi;
   const struct segmentation *const seg = &cm->seg;
-  struct macroblockd_plane *const pd = xd->plane;
   PREDICTION_MODE this_mode;
   MV_REFERENCE_FRAME ref_frame, second_ref_frame;
   unsigned char segment_id = mbmi->segment_id;
@@ -3225,16 +3224,15 @@ int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
 
     if (ref_frame == INTRA_FRAME) {
       TX_SIZE uv_tx;
-
+      struct macroblockd_plane *const pd = &xd->plane[1];
       vpx_memset(x->skip_txfm, 0, sizeof(x->skip_txfm));
       super_block_yrd(cpi, x, &rate_y, &distortion_y, &skippable,
                       NULL, bsize, tx_cache, best_rd);
-
       if (rate_y == INT_MAX)
         continue;
 
-      uv_tx = get_uv_tx_size_impl(mbmi->tx_size, bsize, pd[1].subsampling_x,
-                                  pd[1].subsampling_y);
+      uv_tx = get_uv_tx_size_impl(mbmi->tx_size, bsize, pd->subsampling_x,
+                                  pd->subsampling_y);
       if (rate_uv_intra[uv_tx] == INT_MAX) {
         choose_intra_uv_mode(cpi, ctx, bsize, uv_tx,
                              &rate_uv_intra[uv_tx], &rate_uv_tokenonly[uv_tx],