shithub: libvpx

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vp9-svc: Adjust step_param for screen-content

Use same step_param for all spatial layers for now.
Some improvement in quality on scrolling for spatial
enhancement layer.

Change-Id: Ic9eed8ba5dd44493e9f5e81f6115df2a25825d16

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

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

@@ -799,8 +799,8 @@

       (svc->high_num_blocks_with_motion || svc->last_layer_dropped[0])) {

     sf->mv.search_method = NSTEP;

     // TODO(marpan/jianj): Tune this setting for screensharing. For now use

-    // larger step_param for non-base layer, to avoid increase in encode time.

-    sf->mv.fullpel_search_step_param = (svc->spatial_layer_id == 0) ? 2 : 4;

+    // small step_param for all spatial layers.

+    sf->mv.fullpel_search_step_param = 2;

   }

 }