shithub: libvpx

Info  •  Files  •  Log  •  Branches

Periodically update mode and mv costs

Skip coefficient cost update in non-RD mode decision setting. Allow
periodical mode and motion vector cost update. Currently every other
8 frames. The increment runtime is a constant number. Hence more
visible for CIF resolution, while negligible for 1080p.

Speed -6 compression performance for rtc set is improved by 4.5%.

Change-Id: I27e0ad7c521fcc2af1d825582cbdd1a27ac4c323

--- a/vp9/encoder/vp9_rdopt.c

+++ b/vp9/encoder/vp9_rdopt.c

@@ -295,13 +295,15 @@

   set_block_thresholds(cpi);

-  fill_token_costs(x->token_costs, cm->fc.coef_probs);

-

   if (!cpi->sf.use_pick_mode) {

+    fill_token_costs(x->token_costs, cm->fc.coef_probs);

+

     for (i = 0; i < PARTITION_CONTEXTS; i++)

       vp9_cost_tokens(x->partition_cost[i], get_partition_probs(cm, i),

                       vp9_partition_tree);

+  }

+  if (!cpi->sf.use_pick_mode || (cm->current_video_frame & 0x07) == 1) {

     fill_mode_costs(cpi);

     if (!frame_is_intra_only(cm)) {

-- 

⑨