vp9: Adjust copy partition threshold, for speed 8.

Reduce it from 5 to 4, small/no change in metrics or speed.
Small reduction in dragging artifact near moving head.

Change-Id: Ic3bc5ca67c70bf0c89fc2ed14454840a28ae5b6a

diff --git a/vp9/encoder/vp9_speed_features.c b/vp9/encoder/vp9_speed_features.c
index 7b78d1d5ec53d1ce5e0356f22b9e2a6d517fff42..27ca7c0f5ae53f94b602f50426c2b4dfd53a5b42 100644 (file)
--- a/vp9/encoder/vp9_speed_features.c
+++ b/vp9/encoder/vp9_speed_features.c
@@ -523,7 +523,7 @@ static void set_rt_speed_feature_framesize_independent(
       sf->copy_partition_flag = 1;
 
     if (sf->copy_partition_flag) {
-      cpi->max_copied_frame = 5;
+      cpi->max_copied_frame = 4;
       if (cpi->prev_partition == NULL) {
         cpi->prev_partition = (BLOCK_SIZE *)vpx_calloc(
             cm->mi_stride * cm->mi_rows, sizeof(BLOCK_SIZE));