shithub: libvpx

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Turn on ml_var_partition_pruning for speed 1

Coding loss:
lowres 0.08%; midres 0.11%; hdres 0.07%

Average encoding speedup is about 6%.

Change-Id: I950291cf0f1d610bcdedeb150bcbefea2f5579bc

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

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

@@ -3405,30 +3405,29 @@

   MODE_INFO *mi = xd->mi[0];

   const NN_CONFIG *nn_config = NULL;

   DECLARE_ALIGNED(16, uint8_t, pred_buf[64 * 64]);

+  const int speed = cpi->oxcf.speed;

   int i;

-  float thresh_low = -1.0f;

-  float thresh_high = 0.0f;

+  float thresh = 0.0f;

   switch (bsize) {

     case BLOCK_64X64:

       nn_config = &vp9_var_rd_part_nnconfig_64;

-      thresh_low = -3.0f;

-      thresh_high = 3.0f;

+      thresh = speed > 0 ? 3.5f : 3.0f;

       break;

     case BLOCK_32X32:

       nn_config = &vp9_var_rd_part_nnconfig_32;

-      thresh_low = -3.0;

-      thresh_high = 3.0f;

+      thresh = speed > 0 ? 3.5f : 3.0f;

       break;

     case BLOCK_16X16:

       nn_config = &vp9_var_rd_part_nnconfig_16;

-      thresh_low = -4.0;

-      thresh_high = 4.0f;

+      thresh = speed > 0 ? 3.5f : 4.0f;

       break;

     case BLOCK_8X8:

       nn_config = &vp9_var_rd_part_nnconfig_8;

-      thresh_low = -2.0;

-      thresh_high = 2.0f;

+      if (cm->width >= 720 && cm->height >= 720)

+        thresh = speed > 0 ? 2.5f : 2.0f;

+      else

+        thresh = speed > 0 ? 3.5f : 2.0f;

       break;

     default: assert(0 && "Unexpected block size."); return;

   }

@@ -3520,8 +3519,8 @@

     // partition is better than the non-split partition. So if the score is

     // high enough, we skip the none-split partition search; if the score is

     // low enough, we skip the split partition search.

-    if (score > thresh_high) *none = 0;

-    if (score < thresh_low) *split = 0;

+    if (score > thresh) *none = 0;

+    if (score < -thresh) *split = 0;

   }

 }

 #undef FEATURES

--- a/vp9/encoder/vp9_speed_features.c

+++ b/vp9/encoder/vp9_speed_features.c

@@ -242,7 +242,7 @@

   if (speed >= 1) {

     sf->enable_tpl_model = 0;

-    sf->ml_var_partition_pruning = 0;

+    sf->ml_var_partition_pruning = !boosted;

     sf->ml_prune_rect_partition_threhold[1] = 200;

     sf->ml_prune_rect_partition_threhold[2] = 200;

     sf->ml_prune_rect_partition_threhold[3] = 200;

@@ -291,6 +291,7 @@

   }

   if (speed >= 2) {

+    sf->ml_var_partition_pruning = 0;

     if (oxcf->vbr_corpus_complexity)

       sf->recode_loop = ALLOW_RECODE_FIRST;

     else