shithub: libvpx

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Use dedicated variables to store the best mode

Use a set of dedicated variables to buffer the current best mode
in non-RD mode decision. This allows to use mode_info for more
complicated test in the non-RD process.

Change-Id: I6024c9feb0662afd3eb29f7017f7b5a5446f303f

--- a/vp9/encoder/vp9_pickmode.c

+++ b/vp9/encoder/vp9_pickmode.c

@@ -184,8 +184,8 @@

   MACROBLOCKD *xd = &x->e_mbd;

   MB_MODE_INFO *mbmi = &xd->mi_8x8[0]->mbmi;

   const BLOCK_SIZE block_size = get_plane_block_size(bsize, &xd->plane[0]);

-  MB_PREDICTION_MODE this_mode;

-  MV_REFERENCE_FRAME ref_frame;

+  MB_PREDICTION_MODE this_mode, best_mode = ZEROMV;

+  MV_REFERENCE_FRAME ref_frame, best_ref_frame = LAST_FRAME;

   int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES];

   struct buf_2d yv12_mb[4][MAX_MB_PLANE];

   static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG,

@@ -240,6 +240,8 @@

     clamp_mv2(&frame_mv[NEARESTMV][ref_frame].as_mv, xd);

     clamp_mv2(&frame_mv[NEARMV][ref_frame].as_mv, xd);

+    mbmi->ref_frame[0] = ref_frame;

+

     for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) {

       int rate = cost[INTER_OFFSET(this_mode)];

       int64_t dist;

@@ -258,14 +260,16 @@

       if (this_rd < best_rd) {

         best_rd = this_rd;

-        mbmi->mode = this_mode;

-        mbmi->ref_frame[0] = ref_frame;

-        mbmi->mv[0].as_int = frame_mv[this_mode][ref_frame].as_int;

-        xd->mi_8x8[0]->bmi[0].as_mv[0].as_int = mbmi->mv[0].as_int;

-        mbmi->uv_mode = this_mode;

+        best_mode = this_mode;

+        best_ref_frame = ref_frame;

       }

     }

   }

+

+  mbmi->mode = best_mode;

+  mbmi->ref_frame[0] = best_ref_frame;

+  mbmi->mv[0].as_int = frame_mv[best_mode][best_ref_frame].as_int;

+  xd->mi_8x8[0]->bmi[0].as_mv[0].as_int = mbmi->mv[0].as_int;

   // Perform intra prediction search, if the best SAD is above a certain

   // threshold.

-- 

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