commit 2348c03521b168921b554aab848ebdf6416e1e6b
author Yunqing Wang <yunqingwang@google.com> Thu Jan 09 18:05:49 2020 -0800
committer Yaowu Xu <yaowu@google.com> Sat Jan 11 15:08:47 2020 +0000
tree 3d4f6f155692096057a0f77a3d5b9c69e3f0abda
parent 736466423666cd65792285bb199377d3acf603d5

Prune interpolation filter search

Prune interpolation filter search based on previous frames'
filter selection stats. Calculate probabilities of each filter,
and prune the search at prediction block level. Currently, this
feature is turned on at speed 5.

Borg test(150 frames) results:
       avg_psnr:  ovr_psnr:  ssim:   avg speedups over whole set:
lowres: 0.153     0.163      0.149         1.6%
midres: 0.145     0.158      0.070         1.8%

STATS_CHANGED

Change-Id: I21edcc76ac30b2fd2eec8f5efd7edeb2c7119cbf

av1/encoder/encoder.h

diff --git a/av1/encoder/encoder.h b/av1/encoder/encoder.h
index b2b8638..997c673 100644
--- a/av1/encoder/encoder.h
+++ b/av1/encoder/encoder.h
@@ -990,6 +990,9 @@
   int warped_probs[FRAME_UPDATE_TYPES];
   int tx_type_probs[FRAME_UPDATE_TYPES][TX_SIZES_ALL][TX_TYPES];
   int tx_type_probs_thresh[FRAME_UPDATE_TYPES];
+  int switchable_interp_probs[FRAME_UPDATE_TYPES][SWITCHABLE_FILTER_CONTEXTS]
+                             [SWITCHABLE_FILTERS];
+  int switchable_interp_thresh[FRAME_UPDATE_TYPES];
 
   // Multi-threading
   int num_workers;