Update to speed 5 non-rd mode partition search.

If the pre-selected partition size (from variance partition) is
32x32, also apply nonrd partition search for 32x32 and 16x16 size.

Overall small positive gain in metrics, average ~1%.
Some visual improvement, for lower resolutions.

Change-Id: I69cb425bda94f7d13d34c451ab30e9276335a30e

diff --git a/vp9/encoder/vp9_encodeframe.c b/vp9/encoder/vp9_encodeframe.c
index b39b53d..02d986e 100644 (file)
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -3349,8 +3349,13 @@ static void nonrd_select_partition(VP9_COMP *cpi,
   subsize = (bsize >= BLOCK_8X8) ? mi[0]->mbmi.sb_type : BLOCK_4X4;
   partition = partition_lookup[bsl][subsize];
 
-  if (bsize == BLOCK_32X32 && partition != PARTITION_NONE &&
-      subsize >= BLOCK_16X16) {
+  if (bsize == BLOCK_32X32 && subsize == BLOCK_32X32) {
+    x->max_partition_size = BLOCK_32X32;
+    x->min_partition_size = BLOCK_16X16;
+    nonrd_pick_partition(cpi, td, tile_data, tp, mi_row, mi_col, bsize,
+                         rd_cost, 0, INT64_MAX, pc_tree);
+  } else if (bsize == BLOCK_32X32 && partition != PARTITION_NONE &&
+             subsize >= BLOCK_16X16) {
     x->max_partition_size = BLOCK_32X32;
     x->min_partition_size = BLOCK_8X8;
     nonrd_pick_partition(cpi, td, tile_data, tp, mi_row, mi_col, bsize,