shithub: libvpx

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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

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

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

@@ -3349,8 +3349,13 @@

   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,