shithub: libvpx

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vp9: use nonrd pick_intra for small blocks on keyframes.

Keyframe encoding is more than 2x faster.
Disabled on Speed 8.

Change-Id: I2157318b6ac8253fa5398322c72d98cd7fa9b2b6

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

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

@@ -3489,7 +3489,7 @@

 static void hybrid_intra_mode_search(VP9_COMP *cpi, MACROBLOCK *const x,

                                      RD_COST *rd_cost, BLOCK_SIZE bsize,

                                      PICK_MODE_CONTEXT *ctx) {

-  if (bsize < BLOCK_16X16)

+  if (!cpi->sf.nonrd_keyframe && bsize < BLOCK_16X16)

     vp9_rd_pick_intra_mode_sb(cpi, x, rd_cost, bsize, ctx, INT64_MAX);

   else

     vp9_pick_intra_mode(cpi, x, rd_cost, bsize, ctx);

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

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

@@ -366,6 +366,7 @@

   sf->use_simple_block_yrd = 0;

   sf->adapt_partition_source_sad = 0;

   sf->use_altref_onepass = 0;

+  sf->nonrd_keyframe = 0;

   if (speed >= 1) {

     sf->allow_txfm_domain_distortion = 1;

@@ -598,6 +599,7 @@

   if (speed >= 8) {

     sf->adaptive_rd_thresh = 4;

     sf->skip_encode_sb = 1;

+    sf->nonrd_keyframe = 1;

     if (!cpi->use_svc) cpi->max_copied_frame = 4;

     if (cpi->row_mt && cpi->oxcf.max_threads > 1)

       sf->adaptive_rd_thresh_row_mt = 1;

--- a/vp9/encoder/vp9_speed_features.h

+++ b/vp9/encoder/vp9_speed_features.h

@@ -499,6 +499,9 @@

   // Enable use of alt-refs in 1 pass VBR.

   int use_altref_onepass;

+

+  // Always use nonrd_pick_intra for all block sizes on keyframes.

+  int nonrd_keyframe;

 } SPEED_FEATURES;

 struct VP9_COMP;