commit 53a04f66f312c545f4a61c904a42d3d78ece4c34
author Di Chen <chendixi@google.com> Fri Jun 23 13:47:56 2017 -0700
committer Di Chen <chendixi@google.com> Wed Jul 26 16:07:59 2017 +0000
tree acf10a4820e005c8473d954789cedced68834b9f
parent 0d7c4b052733c1d122eef92e8dcc245eaef4dd29

Disable extra altref and bwdref for still gf group

Use three metrics to identify the still gf group.
Performance:
lowres: pamphlet_cif -1.395; bowing_cif -0.989;
        others remain same. Overall -0.064
midres: snow_mnt_480p -0.827. others remain same.
        Overall -0.028

Change-Id: I22a6429c7ebdad2c36ec73c7a69cabc07e8208b7

av1/encoder/firstpass.h

diff --git a/av1/encoder/firstpass.h b/av1/encoder/firstpass.h
index 983b3b5..266766d 100644
--- a/av1/encoder/firstpass.h
+++ b/av1/encoder/firstpass.h
@@ -52,6 +52,13 @@
 #define MIN_EXT_ARF_INTERVAL 4
 #endif  // CONFIG_EXT_REFS
 
+#if CONFIG_FLEX_REFS
+#define MIN_ZERO_MOTION 0.95
+#define MAX_SR_CODED_ERROR 40
+#define MAX_RAW_ERR_VAR 2000
+#define MIN_MV_IN_OUT 0.4
+#endif  // CONFIG_FLEX_REFS
+
 #define VLOW_MOTION_THRESHOLD 950
 
 typedef struct {
@@ -77,6 +84,10 @@
   double new_mv_count;
   double duration;
   double count;
+#if CONFIG_FLEX_REFS
+  // standard deviation for (0, 0) motion prediction error
+  double raw_error_stdev;
+#endif  // CONFIG_FLEX_REFS
 } FIRSTPASS_STATS;
 
 typedef enum {