ref: c2b8b5bfe2bdb5bff7225cbd656c6fbbaa4230a5
parent: 86c16df39d67f8db2c76e449f105d4e01ce82637
parent: cdc359989a140cb2f25b81d768583e23d1a9ad85
author: Yaowu Xu <yaowu@google.com>
date: Tue Oct 13 18:31:56 EDT 2015
Merge "Changes to partition breakout rules."
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -2379,11 +2379,20 @@
bsize >= BLOCK_8X8;
int partition_vert_allowed = !force_horz_split && xss <= yss &&
bsize >= BLOCK_8X8;
- (void) *tp_orig;
+ int64_t dist_breakout_thr = cpi->sf.partition_search_breakout_dist_thr;
+ int rate_breakout_thr = cpi->sf.partition_search_breakout_rate_thr;
+
+ (void)*tp_orig;
+
assert(num_8x8_blocks_wide_lookup[bsize] ==
num_8x8_blocks_high_lookup[bsize]);
+ // Adjust dist breakout threshold according to the partition size.
+ dist_breakout_thr >>= 8 - (b_width_log2_lookup[bsize] +
+ b_height_log2_lookup[bsize]);
+ rate_breakout_thr *= num_pels_log2_lookup[bsize];
+
vp9_rd_cost_init(&this_rdc);
vp9_rd_cost_init(&sum_rdc);
vp9_rd_cost_reset(&best_rdc);
@@ -2412,9 +2421,13 @@
force_vert_split);
do_split &= bsize > min_size;
}
- if (cpi->sf.use_square_partition_only) {- partition_horz_allowed &= force_horz_split;
- partition_vert_allowed &= force_vert_split;
+
+ if (cpi->sf.use_square_partition_only &&
+ (bsize > cpi->sf.use_square_only_threshold)) {+ if (!vp9_active_h_edge(cpi, mi_row, mi_step) || x->e_mbd.lossless)
+ partition_horz_allowed &= force_horz_split;
+ if (!vp9_active_v_edge(cpi, mi_row, mi_step) || x->e_mbd.lossless)
+ partition_vert_allowed &= force_vert_split;
}
save_context(x, mi_row, mi_col, a, l, sa, sl, bsize);
@@ -2491,27 +2504,17 @@
}
if (this_rdc.rdcost < best_rdc.rdcost) {- int64_t dist_breakout_thr = cpi->sf.partition_search_breakout_dist_thr;
- int rate_breakout_thr = cpi->sf.partition_search_breakout_rate_thr;
-
best_rdc = this_rdc;
if (bsize >= BLOCK_8X8)
pc_tree->partitioning = PARTITION_NONE;
- // Adjust dist breakout threshold according to the partition size.
- dist_breakout_thr >>= 8 - (b_width_log2_lookup[bsize] +
- b_height_log2_lookup[bsize]);
-
- rate_breakout_thr *= num_pels_log2_lookup[bsize];
-
// If all y, u, v transform blocks in this partition are skippable, and
// the dist & rate are within the thresholds, the partition search is
// terminated for current branch of the partition search tree.
- // The dist & rate thresholds are set to 0 at speed 0 to disable the
- // early termination at that speed.
- if (!x->e_mbd.lossless &&
- (ctx->skippable && best_rdc.dist < dist_breakout_thr &&
- best_rdc.rate < rate_breakout_thr)) {+ if (!x->e_mbd.lossless && ctx->skippable &&
+ ((best_rdc.dist < (dist_breakout_thr >> 2)) ||
+ (best_rdc.dist < dist_breakout_thr &&
+ best_rdc.rate < rate_breakout_thr))) {do_split = 0;
do_rect = 0;
}
@@ -2621,11 +2624,21 @@
if (sum_rdc.rdcost < best_rdc.rdcost) {best_rdc = sum_rdc;
pc_tree->partitioning = PARTITION_SPLIT;
+
+ // Rate and distortion based partition search termination clause.
+ if (!x->e_mbd.lossless &&
+ ((best_rdc.dist < (dist_breakout_thr >> 2)) ||
+ (best_rdc.dist < dist_breakout_thr &&
+ best_rdc.rate < rate_breakout_thr))) {+ do_rect = 0;
+ }
}
} else {// skip rectangular partition test when larger block size
// gives better rd cost
- if (cpi->sf.less_rectangular_check)
+ if ((cpi->sf.less_rectangular_check) &&
+ ((bsize > cpi->sf.use_square_only_threshold) ||
+ (best_rdc.dist < dist_breakout_thr)))
do_rect &= !partition_none_allowed;
}
restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize);
@@ -2634,7 +2647,7 @@
// PARTITION_HORZ
if (partition_horz_allowed &&
(do_rect || vp9_active_h_edge(cpi, mi_row, mi_step))) {- subsize = get_subsize(bsize, PARTITION_HORZ);
+ subsize = get_subsize(bsize, PARTITION_HORZ);
if (cpi->sf.adaptive_motion_search)
load_pred_mv(x, ctx);
if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 &&
@@ -2675,6 +2688,10 @@
if (sum_rdc.rdcost < best_rdc.rdcost) {best_rdc = sum_rdc;
pc_tree->partitioning = PARTITION_HORZ;
+
+ if ((cpi->sf.less_rectangular_check) &&
+ (bsize > cpi->sf.use_square_only_threshold))
+ do_rect = 0;
}
}
restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize);
@@ -2682,7 +2699,7 @@
// PARTITION_VERT
if (partition_vert_allowed &&
(do_rect || vp9_active_v_edge(cpi, mi_col, mi_step))) {- subsize = get_subsize(bsize, PARTITION_VERT);
+ subsize = get_subsize(bsize, PARTITION_VERT);
if (cpi->sf.adaptive_motion_search)
load_pred_mv(x, ctx);
@@ -2735,7 +2752,6 @@
// checks occur in some sub function and thus are used...
(void) best_rd;
*rd_cost = best_rdc;
-
if (best_rdc.rate < INT_MAX && best_rdc.dist < INT64_MAX &&
pc_tree->index != 3) {--- a/vp9/encoder/vp9_speed_features.c
+++ b/vp9/encoder/vp9_speed_features.c
@@ -113,8 +113,14 @@
SPEED_FEATURES *sf, int speed) {const int boosted = frame_is_boosted(cpi);
+ sf->partition_search_breakout_dist_thr = (1 << 20);
+ sf->partition_search_breakout_rate_thr = 80;
+ sf->tx_size_search_breakout = 1;
sf->adaptive_rd_thresh = 1;
sf->allow_skip_recode = 1;
+ sf->less_rectangular_check = 1;
+ sf->use_square_partition_only = !frame_is_boosted(cpi);
+ sf->use_square_only_threshold = BLOCK_16X16;
if (speed >= 1) {if ((cpi->twopass.fr_content_type == FC_GRAPHICS_ANIMATION) ||
@@ -123,6 +129,7 @@
} else {sf->use_square_partition_only = !frame_is_intra_only(cm);
}
+ sf->use_square_only_threshold = BLOCK_4X4;
sf->less_rectangular_check = 1;
@@ -139,9 +146,6 @@
sf->intra_uv_mode_mask[TX_32X32] = INTRA_DC_H_V;
sf->intra_y_mode_mask[TX_16X16] = INTRA_DC_H_V;
sf->intra_uv_mode_mask[TX_16X16] = INTRA_DC_H_V;
-
- sf->tx_size_search_breakout = 1;
- sf->partition_search_breakout_rate_thr = 80;
}
if (speed >= 2) {@@ -471,6 +475,7 @@
sf->partition_search_type = SEARCH_PARTITION;
sf->less_rectangular_check = 0;
sf->use_square_partition_only = 0;
+ sf->use_square_only_threshold = BLOCK_SIZES;
sf->auto_min_max_partition_size = NOT_IN_USE;
sf->rd_auto_partition_min_limit = BLOCK_4X4;
sf->default_max_partition_size = BLOCK_64X64;
--- a/vp9/encoder/vp9_speed_features.h
+++ b/vp9/encoder/vp9_speed_features.h
@@ -267,6 +267,7 @@
// Disable testing non square partitions. (eg 16x32)
int use_square_partition_only;
+ BLOCK_SIZE use_square_only_threshold;
// Sets min and max partition sizes for this 64x64 region based on the
// same 64x64 in last encoded frame, and the left and above neighbor.