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Skip redundant flag reset

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If the skip flag is already on, there is no need to further check
the all zero block case. This improves encoding speed at no coding
statistics change.

Change-Id: Icab997ca2977e650351a47ff1314def5ac4ecb1d
This commit is contained in:
Jingning Han 2015-06-11 16:05:04 -07:00
parent 5180368403
commit e272e5b8fb
1 changed files with 21 additions and 13 deletions
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14
vp9/encoder/vp9_rdopt.c
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@ -1359,8 +1359,11 @@ static void select_tx_block(const VP9_COMP *cpi, MACROBLOCK *x,
plane_bsize, ta, tl, &zero_blk_rate, rate, dist, bsse, skip);
txfm_partition_update(txa + (blk_col / 2), txl + (blk_row / 2), tx_size);
if (*skip == 1) {
x->blk_skip[plane][blk_row * block_stride + blk_col] = 1;
} else {
if (RDCOST(x->rdmult, x->rddiv, *rate, *dist) >=
RDCOST(x->rdmult, x->rddiv, zero_blk_rate, *bsse) && !xd->lossless) {
RDCOST(x->rdmult, x->rddiv, zero_blk_rate, *bsse)) {
int i;
*rate = zero_blk_rate;
*dist = *bsse;
@ -1372,7 +1375,7 @@ static void select_tx_block(const VP9_COMP *cpi, MACROBLOCK *x,
}
} else {
x->blk_skip[plane][blk_row * block_stride + blk_col] = 0;
*skip = 0;
}
}
if (tx_size >= TX_8X8)
@ -4261,9 +4264,14 @@ void vp9_rd_pick_inter_mode_sub8x8(VP9_COMP *cpi,
x->skip_encode = sf->skip_encode_frame && x->q_index < QIDX_SKIP_THRESH;
vpx_memset(x->zcoeff_blk[TX_4X4], 0, 4);
vp9_zero(x->blk_skip);
vp9_zero(best_mbmode);
for (i = 0; i < MAX_MB_PLANE; ++i) {
int j;
for (j = 0; j < 4; ++j)
x->blk_skip[i][j] = 0;
}
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
filter_cache[i] = INT64_MAX;