shithub: libvpx

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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

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

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

@@ -523,7 +523,7 @@

       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));