ref: 5c5223860a7cd0361ff8c6cb32e8f67cbb9734d9
parent: 043d348aaeb9862cb87727a68eb7ee4f84d911d1
author: Janne Salonen <jsalonen@google.com>
date: Fri Jun 7 10:01:23 EDT 2013
Modified loop filter edge skipping Added condition to not to skip filtering of transform block edges when the edge is also a decoding block edge. Change-Id: Iaccb6206c4202b78e5dca3b89379556e0f4aba0c
--- a/vp9/common/vp9_loopfilter.c
+++ b/vp9/common/vp9_loopfilter.c
@@ -683,8 +683,14 @@
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;
- const int skip_this_c = skip_this && skip_left;
- const int skip_this_r = skip_this && skip_above;
+ // 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;
+ // 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 TX_SIZE tx_size = plane ? get_uv_tx_size(xd) : mi[c].mbmi.txfm_size;
// Filter level can vary per MI