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vp9: speed >= 8: Skip uv variance in model_rd_sb_y_large

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For speed >= 8 and color_sensitivity not set, skip the transform
skipping test in UV planes.
Add a new condition to check noise level to skip chroma check
for speed >= 8 if y_sad is high.

1~2% speedup on ARM for speed 8.

Borg tests show neutral results in both rtc and rtc_derf.

Change-Id: Idecd3ff6e28c97757a43bb6f3a7082c85f72109c
This commit is contained in:
Jerome Jiang 2017-04-21 10:10:05 -07:00
parent 58fe1bde59
commit 69b0242e9a
2 changed files with 33 additions and 23 deletions
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11
vp9/encoder/vp9_encodeframe.c
View File

@ -946,9 +946,16 @@ static void chroma_check(VP9_COMP *cpi, MACROBLOCK *x, int bsize,
unsigned int y_sad, int is_key_frame) {
int i;
MACROBLOCKD *xd = &x->e_mbd;
if (is_key_frame) return;
// For speed >= 8, avoid the chroma check if y_sad is above threshold.
if (is_key_frame || (cpi->oxcf.speed >= 8 && y_sad > cpi->vbp_thresholds[1]))
return;
if (cpi->oxcf.speed >= 8) {
if (y_sad > cpi->vbp_thresholds[1] &&
(!cpi->noise_estimate.enabled ||
vp9_noise_estimate_extract_level(&cpi->noise_estimate) < kMedium))
return;
}
for (i = 1; i <= 2; ++i) {
unsigned int uv_sad = UINT_MAX;

45
vp9/encoder/vp9_pickmode.c
View File

@ -452,28 +452,32 @@ static void model_rd_for_sb_y_large(VP9_COMP *cpi, BLOCK_SIZE bsize,
// Transform skipping test in UV planes.
for (i = 1; i <= 2; i++) {
struct macroblock_plane *const p = &x->plane[i];
struct macroblockd_plane *const pd = &xd->plane[i];
const TX_SIZE uv_tx_size = get_uv_tx_size(xd->mi[0], pd);
const BLOCK_SIZE unit_size = txsize_to_bsize[uv_tx_size];
const BLOCK_SIZE uv_bsize = get_plane_block_size(bsize, pd);
const int uv_bw = b_width_log2_lookup[uv_bsize];
const int uv_bh = b_height_log2_lookup[uv_bsize];
const int sf = (uv_bw - b_width_log2_lookup[unit_size]) +
(uv_bh - b_height_log2_lookup[unit_size]);
const uint32_t uv_dc_thr = pd->dequant[0] * pd->dequant[0] >> (6 - sf);
const uint32_t uv_ac_thr = pd->dequant[1] * pd->dequant[1] >> (6 - sf);
int j = i - 1;
if (cpi->oxcf.speed < 8 || x->color_sensitivity[i - 1]) {
struct macroblock_plane *const p = &x->plane[i];
struct macroblockd_plane *const pd = &xd->plane[i];
const TX_SIZE uv_tx_size = get_uv_tx_size(xd->mi[0], pd);
const BLOCK_SIZE unit_size = txsize_to_bsize[uv_tx_size];
const BLOCK_SIZE uv_bsize = get_plane_block_size(bsize, pd);
const int uv_bw = b_width_log2_lookup[uv_bsize];
const int uv_bh = b_height_log2_lookup[uv_bsize];
const int sf = (uv_bw - b_width_log2_lookup[unit_size]) +
(uv_bh - b_height_log2_lookup[unit_size]);
const uint32_t uv_dc_thr = pd->dequant[0] * pd->dequant[0] >> (6 - sf);
const uint32_t uv_ac_thr = pd->dequant[1] * pd->dequant[1] >> (6 - sf);
int j = i - 1;
vp9_build_inter_predictors_sbp(xd, mi_row, mi_col, bsize, i);
var_uv[j] = cpi->fn_ptr[uv_bsize].vf(
p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride, &sse_uv[j]);
vp9_build_inter_predictors_sbp(xd, mi_row, mi_col, bsize, i);
var_uv[j] = cpi->fn_ptr[uv_bsize].vf(
p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride, &sse_uv[j]);
if ((var_uv[j] < uv_ac_thr || var_uv[j] == 0) &&
(sse_uv[j] - var_uv[j] < uv_dc_thr || sse_uv[j] == var_uv[j]))
skip_uv[j] = 1;
else
break;
if ((var_uv[j] < uv_ac_thr || var_uv[j] == 0) &&
(sse_uv[j] - var_uv[j] < uv_dc_thr || sse_uv[j] == var_uv[j]))
skip_uv[j] = 1;
else
break;
} else {
skip_uv[i - 1] = 1;
}
}
// If the transform in YUV planes are skippable, the mode search checks
@ -481,7 +485,6 @@ static void model_rd_for_sb_y_large(VP9_COMP *cpi, BLOCK_SIZE bsize,
if (skip_uv[0] & skip_uv[1]) {
*early_term = 1;
}
return;
}