commit e6ca8e83804de15feb8731a774699f832ce05226
author Urvang Joshi <urvang@google.com> Wed Mar 15 14:57:41 2017 -0700
committer Urvang Joshi <urvang@google.com> Mon May 08 21:09:19 2017 +0000
tree e5b8e53831b025068a98fdccd9b4891b602189a0
parent 0c33b15f06fa350aa1bcef0df7d4dd51112603ff

Add a new experiment SMOOTH_HV.

This experiment extends ALT_INTRA by adding two new modes:
smooth horizontal and smooth vertical.

Improvement on *intra frames* in BDRate (PSNR):
===============================================

AWCY (high latency): -0.46%
(Also, -1.0% or more on PSNR Cb,Cr and APSNR Cb,Cr).

AWCY (low latency): -0.43%
(Also, -0.88% to -0.94% on PSNR Cb,Cr and APSNR Cb,Cr).

Google sets:
lowres: -0.454
midres: -0.484
hdres:  -0.525

Improvement on *video overall* in BDRate (PSNR):
================================================

AWCY (high latency): -0.15%

Google sets:
lowres: -0.085
midres: -0.079

Change-Id: I9f4e7c1b8ded1fe244c72838f336103ccc715d50

av1/encoder/rdopt.c

diff --git a/av1/encoder/rdopt.c b/av1/encoder/rdopt.c
index 2953a5e..abe1b01 100644
--- a/av1/encoder/rdopt.c
+++ b/av1/encoder/rdopt.c
@@ -217,6 +217,10 @@
 
 #if CONFIG_ALT_INTRA
   { SMOOTH_PRED, { INTRA_FRAME, NONE_FRAME } },
+#if CONFIG_SMOOTH_HV
+  { SMOOTH_V_PRED, { INTRA_FRAME, NONE_FRAME } },
+  { SMOOTH_H_PRED, { INTRA_FRAME, NONE_FRAME } },
+#endif  // CONFIG_SMOOTH_HV
 #endif  // CONFIG_ALT_INTRA
 
 #if CONFIG_EXT_INTER
@@ -9549,12 +9553,10 @@
   const int *const intra_mode_cost = cpi->mbmode_cost[size_group_lookup[bsize]];
   int best_skip2 = 0;
   uint8_t ref_frame_skip_mask[2] = { 0 };
-#if CONFIG_EXT_INTER
   uint32_t mode_skip_mask[TOTAL_REFS_PER_FRAME] = { 0 };
+#if CONFIG_EXT_INTER
   MV_REFERENCE_FRAME best_single_inter_ref = LAST_FRAME;
   int64_t best_single_inter_rd = INT64_MAX;
-#else
-  uint16_t mode_skip_mask[TOTAL_REFS_PER_FRAME] = { 0 };
 #endif  // CONFIG_EXT_INTER
   int mode_skip_start = sf->mode_skip_start + 1;
   const int *const rd_threshes = rd_opt->threshes[segment_id][bsize];