Adding best_mv[2] array instead of two variables.

Change-Id: I584fe50f73879f6a72fada45714ef80893b6d549

vp9/common/vp9_blockd.h

@@ -137,7 +137,7 @@ typedef struct {
   TX_SIZE tx_size;
   int_mv mv[2];                // for each reference frame used
   int_mv ref_mvs[MAX_REF_FRAMES][MAX_MV_REF_CANDIDATES];
-  int_mv best_mv, best_second_mv;
+  int_mv best_mv[2];
 
   uint8_t mode_context[MAX_REF_FRAMES];
 

vp9/encoder/vp9_bitstream.c

@@ -484,17 +484,13 @@ static void pack_inter_mode_mvs(VP9_COMP *cpi, MODE_INFO *m, vp9_writer *bc) {
     }
 
     if (bsize < BLOCK_8X8) {
-      int j;
-      MB_PREDICTION_MODE blockmode;
-      int_mv blockmv;
       const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize];
       const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize];
       int idx, idy;
       for (idy = 0; idy < 2; idy += num_4x4_blocks_high) {
         for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) {
-          j = idy * 2 + idx;
-          blockmode = x->partition_info->bmi[j].mode;
-          blockmv = m->bmi[j].as_mv[0];
+          const int j = idy * 2 + idx;
+          const MB_PREDICTION_MODE blockmode = x->partition_info->bmi[j].mode;
           write_sb_mv_ref(bc, blockmode, mv_ref_p);
           ++cm->counts.inter_mode[mi->mode_context[rf]]
                                  [inter_mode_offset(blockmode)];
@@ -503,14 +499,12 @@ static void pack_inter_mode_mvs(VP9_COMP *cpi, MODE_INFO *m, vp9_writer *bc) {
 #ifdef ENTROPY_STATS
             active_section = 11;
 #endif
-            vp9_encode_mv(cpi, bc, &blockmv.as_mv, &mi->best_mv.as_mv,
-                          nmvc, allow_hp);
-
-            if (mi->ref_frame[1] > INTRA_FRAME)
-              vp9_encode_mv(cpi, bc,
-                            &m->bmi[j].as_mv[1].as_mv,
-                            &mi->best_second_mv.as_mv,
-                            nmvc, allow_hp);
+            vp9_encode_mv(cpi, bc, &m->bmi[j].as_mv[0].as_mv,
+                          &mi->best_mv[0].as_mv, nmvc, allow_hp);
+
+            if (has_second_ref(mi))
+              vp9_encode_mv(cpi, bc, &m->bmi[j].as_mv[1].as_mv,
+                            &mi->best_mv[1].as_mv, nmvc, allow_hp);
           }
         }
       }
@@ -518,12 +512,12 @@ static void pack_inter_mode_mvs(VP9_COMP *cpi, MODE_INFO *m, vp9_writer *bc) {
 #ifdef ENTROPY_STATS
       active_section = 5;
 #endif
-      vp9_encode_mv(cpi, bc, &mi->mv[0].as_mv, &mi->best_mv.as_mv,
-                    nmvc, allow_hp);
+      vp9_encode_mv(cpi, bc, &mi->mv[0].as_mv,
+                    &mi->best_mv[0].as_mv, nmvc, allow_hp);
 
-      if (mi->ref_frame[1] > INTRA_FRAME)
-        vp9_encode_mv(cpi, bc, &mi->mv[1].as_mv, &mi->best_second_mv.as_mv,
-                      nmvc, allow_hp);
+      if (has_second_ref(mi))
+        vp9_encode_mv(cpi, bc, &mi->mv[1].as_mv,
+                      &mi->best_mv[1].as_mv, nmvc, allow_hp);
     }
   }
 }

vp9/encoder/vp9_encodeframe.c

@@ -438,8 +438,8 @@ static void update_state(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
         if (rf2 > 0)
           best_second_mv.as_int = mbmi->ref_mvs[rf2][0].as_int;
       }
-      mbmi->best_mv.as_int = best_mv.as_int;
-      mbmi->best_second_mv.as_int = best_second_mv.as_int;
+      mbmi->best_mv[0].as_int = best_mv.as_int;
+      mbmi->best_mv[1].as_int = best_second_mv.as_int;
       vp9_update_nmv_count(cpi, x, &best_mv, &best_second_mv);
     }