shithub: libvpx

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Fix SEG_LVL_SKIP in RD inter mode selection.

* Only use ZEROMV, disalowing the intra modes that were previously
  tested.
* Score rate and distortion as zero.

Change-Id: Ifcf99e272095725f11da1dcd26bd0f850683e680

--- a/vp9/encoder/vp9_rdopt.c

+++ b/vp9/encoder/vp9_rdopt.c

@@ -2802,7 +2802,8 @@

     *rate2 += vp9_get_switchable_rate(cpi);

   if (!is_comp_pred) {

-    if (!x->in_active_map) {

+    if (!x->in_active_map ||

+        vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) {

       if (psse)

         *psse = 0;

       *distortion = 0;

@@ -3119,9 +3120,7 @@

   // If the segment skip feature is enabled....

   // then do nothing if the current mode is not allowed..

   if (vp9_segfeature_active(seg, segment_id, SEG_LVL_SKIP)) {

-    const int inter_non_zero_mode_mask = 0x1F7F7;

-    mode_skip_mask |= inter_non_zero_mode_mask;

-    mode_skip_mask &= ~(1 << THR_ZEROMV);

+    mode_skip_mask = ~(1 << THR_ZEROMV);

     inter_mode_mask = (1 << ZEROMV);

   }