shithub: libvpx

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Refactor update_state_rt

Update the frame motion vector only if previous frame motion vector
is needed for next frame reference motion vector.

Change-Id: Ica50f9d7b46ad4f815bba0d9e30f5546df29546f

--- a/vp9/encoder/vp9_encodeframe.c

+++ b/vp9/encoder/vp9_encodeframe.c

@@ -1356,11 +1356,8 @@

   const int bh = num_8x8_blocks_high_lookup[mi->mbmi.sb_type];

   const int x_mis = MIN(bw, cm->mi_cols - mi_col);

   const int y_mis = MIN(bh, cm->mi_rows - mi_row);

-  MV_REF *const frame_mvs =

-      cm->cur_frame->mvs + mi_row * cm->mi_cols + mi_col;

-  int w, h;

-  *(xd->mi[0].src_mi) = ctx->mic;

+  xd->mi[0] = ctx->mic;

   xd->mi[0].src_mi = &xd->mi[0];

   if (seg->enabled && cpi->oxcf.aq_mode) {

@@ -1381,7 +1378,6 @@

   if (is_inter_block(mbmi)) {

     vp9_update_mv_count(td);

-

     if (cm->interp_filter == SWITCHABLE) {

       const int pred_ctx = vp9_get_pred_context_switchable_interp(xd);

       ++td->counts->switchable_interp[pred_ctx][mbmi->interp_filter];

@@ -1388,14 +1384,20 @@

     }

   }

-  for (h = 0; h < y_mis; ++h) {

-    MV_REF *const frame_mv = frame_mvs + h * cm->mi_cols;

-    for (w = 0; w < x_mis; ++w) {

-      MV_REF *const mv = frame_mv + w;

-      mv->ref_frame[0] = mi->src_mi->mbmi.ref_frame[0];

-      mv->ref_frame[1] = mi->src_mi->mbmi.ref_frame[1];

-      mv->mv[0].as_int = mi->src_mi->mbmi.mv[0].as_int;

-      mv->mv[1].as_int = mi->src_mi->mbmi.mv[1].as_int;

+  if (cm->use_prev_frame_mvs) {

+    MV_REF *const frame_mvs =

+        cm->cur_frame->mvs + mi_row * cm->mi_cols + mi_col;

+    int w, h;

+

+    for (h = 0; h < y_mis; ++h) {

+      MV_REF *const frame_mv = frame_mvs + h * cm->mi_cols;

+      for (w = 0; w < x_mis; ++w) {

+        MV_REF *const mv = frame_mv + w;

+        mv->ref_frame[0] = mi->src_mi->mbmi.ref_frame[0];

+        mv->ref_frame[1] = mi->src_mi->mbmi.ref_frame[1];

+        mv->mv[0].as_int = mi->src_mi->mbmi.mv[0].as_int;

+        mv->mv[1].as_int = mi->src_mi->mbmi.mv[1].as_int;

+      }

     }

   }

-- 

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