shithub: libvpx

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Loopfilter: use the current block only for skip

Use the current block's skip flag to determine edge skipping.

Change-Id: I4ba81f899286afbc3f6bb83eba2ef146a01b6fa4

--- a/vp9/common/vp9_loopfilter.c

+++ b/vp9/common/vp9_loopfilter.c

@@ -676,21 +676,15 @@

     // Determine the vertical edges that need filtering

     for (c = 0; c < 64 / MI_SIZE && mi_col + c < cm->mi_cols; c += col_step) {

       const MODE_INFO const *mi = xd->mode_info_context;

-      const MODE_INFO const *mi_above = xd->mode_info_context -

-          cm->mode_info_stride;

-      const int skip_above =

-          (r + mi_row > 0) ? mi_above[c].mbmi.mb_skip_coeff : 0;

-      const int skip_left =

-          (c + mi_col > 0) ? mi[c - 1].mbmi.mb_skip_coeff : 0;

       const int skip_this = mi[c].mbmi.mb_skip_coeff;

       // left edge of current unit is block/partition edge -> no skip

       const int block_edge_left = b_width_log2(mi->mbmi.sb_type) ?

           !(c & ((1 << (b_width_log2(mi->mbmi.sb_type)-1)) - 1)) : 1;

-      const int skip_this_c = skip_this && skip_left && !block_edge_left;

+      const int skip_this_c = skip_this && !block_edge_left;

       // top edge of current unit is block/partition edge -> no skip

       const int block_edge_above = b_height_log2(mi->mbmi.sb_type) ?

           !(r & ((1 << (b_height_log2(mi->mbmi.sb_type)-1)) - 1)) : 1;

-      const int skip_this_r = skip_this && skip_above && !block_edge_above;

+      const int skip_this_r = skip_this && !block_edge_above;

       const TX_SIZE tx_size = plane ? get_uv_tx_size(xd) : mi[c].mbmi.txfm_size;

       // Filter level can vary per MI