shithub: libvpx

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vp9 screen-content: Adjust seach step param

Increase to 4 (from 2) on slide/scroll changes,
as there is an issue/failure with the current setting
with offline encode for high resolns.

Change-Id: I8f06c6bdcd59013ab000d75bd75770c667bf70d2

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

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

@@ -796,14 +796,16 @@

     sf->partition_search_type = FIXED_PARTITION;

     sf->always_this_block_size = BLOCK_64X64;

   }

-  // Special case for screen content: increase motion search on baase spatial

+  // Special case for screen content: increase motion search on base spatial

   // layer when high motion is detected or previous SL0 frame was dropped.

   // Avoid speed 5 for as there is an issue with SVC datarate test.

+  // TODO(marpan/jianj): Investigate issue at speed 5.

   if (cpi->oxcf.content == VP9E_CONTENT_SCREEN && cpi->oxcf.speed > 5 &&

       cpi->svc.spatial_layer_id == 0 &&

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

     sf->mv.search_method = NSTEP;

-    sf->mv.fullpel_search_step_param = 2;

+    // TODO(marpan/jianj): Investigate issue for lower setting of step_param.

+    sf->mv.fullpel_search_step_param = 4;

   }

 }