shithub: libvpx

Info  •  Files  •  Log  •  Branches

vp9: Fix to the segment weight for cyclic refresh.

For screen-content mode with aq-mode=3: use the proper
segment weight (remove division by 2).

Change-Id: I747575062c644df7ead3fa41525fb6d6bac04f4d

--- a/vp9/encoder/vp9_aq_cyclicrefresh.c

+++ b/vp9/encoder/vp9_aq_cyclicrefresh.c

@@ -503,13 +503,12 @@

                    num8x8bl;

   if (weight_segment_target < 7 * weight_segment / 8)

     weight_segment = weight_segment_target;

-  // For screen-content: don't include target for the weight segment, since

-  // all for all flat areas the segment is reset, so its more accurate to

-  // just use the previous actual number of seg blocks for the weight.

+  // For screen-content: don't include target for the weight segment,

+  // since for all flat areas the segment is reset, so its more accurate

+  // to just use the previous actual number of seg blocks for the weight.

   if (cpi->oxcf.content == VP9E_CONTENT_SCREEN)

     weight_segment =

-        (double)((cr->actual_num_seg1_blocks + cr->actual_num_seg2_blocks) >>

-                 1) /

+        (double)(cr->actual_num_seg1_blocks + cr->actual_num_seg2_blocks) /

         num8x8bl;

   cr->weight_segment = weight_segment;

 }

-- 

⑨