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vpx/vp9/encoder/vp9_speed_features.c
paulwilkins a126b6ce7d Change speed and rd features for formatting bars. 
Change speed features / behavior for split mode when there
is an internal active edge (e.g. formatting bars).

Remove some threshold constraints in rd code near the active
edge of the image.

Add some plumbing for left and right active edge detection.

Patch set 5. Limit rd pass through for sub 8x8 to internal active edges.
This takes away any speed penalty for most clips but keeps the enhanced
edge coding for the more critical case of internal image edges

Change-Id: If644e4762874de4fe9cbb0a66211953fa74c13a5
2015-07-08 17:51:42 +01:00

542 lines
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/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <limits.h>
#include "vp9/encoder/vp9_encoder.h"
#include "vp9/encoder/vp9_speed_features.h"
#include "vp9/encoder/vp9_rdopt.h"
// Intra only frames, golden frames (except alt ref overlays) and
// alt ref frames tend to be coded at a higher than ambient quality
static int frame_is_boosted(const VP9_COMP *cpi) {
return frame_is_kf_gf_arf(cpi) || vp9_is_upper_layer_key_frame(cpi);
}
// Sets a partition size down to which the auto partition code will always
// search (can go lower), based on the image dimensions. The logic here
// is that the extent to which ringing artefacts are offensive, depends
// partly on the screen area that over which they propogate. Propogation is
// limited by transform block size but the screen area take up by a given block
// size will be larger for a small image format stretched to full screen.
static BLOCK_SIZE set_partition_min_limit(VP9_COMMON *const cm) {
unsigned int screen_area = (cm->width * cm->height);
// Select block size based on image format size.
if (screen_area < 1280 * 720) {
// Formats smaller in area than 720P
return BLOCK_4X4;
} else if (screen_area < 1920 * 1080) {
// Format >= 720P and < 1080P
return BLOCK_8X8;
} else {
// Formats 1080P and up
return BLOCK_16X16;
}
}
static void set_good_speed_feature_framesize_dependent(VP9_COMP *cpi,
SPEED_FEATURES *sf,
int speed) {
VP9_COMMON *const cm = &cpi->common;
if (speed >= 1) {
if (MIN(cm->width, cm->height) >= 720) {
sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
: DISABLE_ALL_INTER_SPLIT;
sf->partition_search_breakout_dist_thr = (1 << 23);
} else {
sf->disable_split_mask = DISABLE_COMPOUND_SPLIT;
sf->partition_search_breakout_dist_thr = (1 << 21);
}
}
if (speed >= 2) {
if (MIN(cm->width, cm->height) >= 720) {
sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
: DISABLE_ALL_INTER_SPLIT;
sf->adaptive_pred_interp_filter = 0;
sf->partition_search_breakout_dist_thr = (1 << 24);
sf->partition_search_breakout_rate_thr = 120;
} else {
sf->disable_split_mask = LAST_AND_INTRA_SPLIT_ONLY;
sf->partition_search_breakout_dist_thr = (1 << 22);
sf->partition_search_breakout_rate_thr = 100;
}
sf->rd_auto_partition_min_limit = set_partition_min_limit(cm);
}
if (speed >= 3) {
if (MIN(cm->width, cm->height) >= 720) {
sf->disable_split_mask = DISABLE_ALL_SPLIT;
sf->schedule_mode_search = cm->base_qindex < 220 ? 1 : 0;
sf->partition_search_breakout_dist_thr = (1 << 25);
sf->partition_search_breakout_rate_thr = 200;
} else {
sf->max_intra_bsize = BLOCK_32X32;
sf->disable_split_mask = DISABLE_ALL_INTER_SPLIT;
sf->schedule_mode_search = cm->base_qindex < 175 ? 1 : 0;
sf->partition_search_breakout_dist_thr = (1 << 23);
sf->partition_search_breakout_rate_thr = 120;
}
}
// If this is a two pass clip that fits the criteria for animated or
// graphics content then reset disable_split_mask for speeds 1-4.
if ((speed >= 1) && (cpi->oxcf.pass == 2) &&
((cpi->twopass.fr_content_type == FC_GRAPHICS_ANIMATION) ||
(vp9_internal_image_edge(cpi)))) {
sf->disable_split_mask = DISABLE_COMPOUND_SPLIT;
}
if (speed >= 4) {
if (MIN(cm->width, cm->height) >= 720) {
sf->partition_search_breakout_dist_thr = (1 << 26);
} else {
sf->partition_search_breakout_dist_thr = (1 << 24);
}
sf->disable_split_mask = DISABLE_ALL_SPLIT;
}
}
static void set_good_speed_feature(VP9_COMP *cpi, VP9_COMMON *cm,
SPEED_FEATURES *sf, int speed) {
const int boosted = frame_is_boosted(cpi);
sf->adaptive_rd_thresh = 1;
sf->allow_skip_recode = 1;
if (speed >= 1) {
sf->use_square_partition_only = !frame_is_intra_only(cm);
sf->less_rectangular_check = 1;
sf->use_rd_breakout = 1;
sf->adaptive_motion_search = 1;
sf->mv.auto_mv_step_size = 1;
sf->adaptive_rd_thresh = 2;
sf->mv.subpel_iters_per_step = 1;
sf->mode_skip_start = 10;
sf->adaptive_pred_interp_filter = 1;
sf->recode_loop = ALLOW_RECODE_KFARFGF;
sf->intra_y_mode_mask[TX_32X32] = INTRA_DC_H_V;
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) {
sf->tx_size_search_method = frame_is_boosted(cpi) ? USE_FULL_RD
: USE_LARGESTALL;
// Reference masking is not supported in dynamic scaling mode.
sf->reference_masking = cpi->oxcf.resize_mode != RESIZE_DYNAMIC ? 1 : 0;
sf->mode_search_skip_flags = (cm->frame_type == KEY_FRAME) ? 0 :
FLAG_SKIP_INTRA_DIRMISMATCH |
FLAG_SKIP_INTRA_BESTINTER |
FLAG_SKIP_COMP_BESTINTRA |
FLAG_SKIP_INTRA_LOWVAR;
sf->disable_filter_search_var_thresh = 100;
sf->comp_inter_joint_search_thresh = BLOCK_SIZES;
sf->auto_min_max_partition_size = RELAXED_NEIGHBORING_MIN_MAX;
sf->allow_partition_search_skip = 1;
}
if (speed >= 3) {
sf->tx_size_search_method = frame_is_intra_only(cm) ? USE_FULL_RD
: USE_LARGESTALL;
sf->mv.subpel_search_method = SUBPEL_TREE_PRUNED;
sf->adaptive_pred_interp_filter = 0;
sf->adaptive_mode_search = 1;
sf->cb_partition_search = !boosted;
sf->cb_pred_filter_search = 1;
sf->alt_ref_search_fp = 1;
sf->recode_loop = ALLOW_RECODE_KFMAXBW;
sf->adaptive_rd_thresh = 3;
sf->mode_skip_start = 6;
sf->intra_y_mode_mask[TX_32X32] = INTRA_DC;
sf->intra_uv_mode_mask[TX_32X32] = INTRA_DC;
sf->adaptive_interp_filter_search = 1;
}
if (speed >= 4) {
sf->use_square_partition_only = 1;
sf->tx_size_search_method = USE_LARGESTALL;
sf->mv.search_method = BIGDIA;
sf->mv.subpel_search_method = SUBPEL_TREE_PRUNED_MORE;
sf->adaptive_rd_thresh = 4;
if (cm->frame_type != KEY_FRAME)
sf->mode_search_skip_flags |= FLAG_EARLY_TERMINATE;
sf->disable_filter_search_var_thresh = 200;
sf->use_lp32x32fdct = 1;
sf->use_fast_coef_updates = ONE_LOOP_REDUCED;
sf->use_fast_coef_costing = 1;
sf->motion_field_mode_search = !boosted;
sf->partition_search_breakout_rate_thr = 300;
}
if (speed >= 5) {
int i;
sf->optimize_coefficients = 0;
sf->mv.search_method = HEX;
sf->disable_filter_search_var_thresh = 500;
for (i = 0; i < TX_SIZES; ++i) {
sf->intra_y_mode_mask[i] = INTRA_DC;
sf->intra_uv_mode_mask[i] = INTRA_DC;
}
sf->partition_search_breakout_rate_thr = 500;
sf->mv.reduce_first_step_size = 1;
}
}
static void set_rt_speed_feature_framesize_dependent(VP9_COMP *cpi,
SPEED_FEATURES *sf, int speed) {
VP9_COMMON *const cm = &cpi->common;
if (speed >= 1) {
if (MIN(cm->width, cm->height) >= 720) {
sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
: DISABLE_ALL_INTER_SPLIT;
} else {
sf->disable_split_mask = DISABLE_COMPOUND_SPLIT;
}
}
if (speed >= 2) {
if (MIN(cm->width, cm->height) >= 720) {
sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
: DISABLE_ALL_INTER_SPLIT;
} else {
sf->disable_split_mask = LAST_AND_INTRA_SPLIT_ONLY;
}
}
if (speed >= 5) {
if (MIN(cm->width, cm->height) >= 720) {
sf->partition_search_breakout_dist_thr = (1 << 25);
} else {
sf->partition_search_breakout_dist_thr = (1 << 23);
}
}
if (speed >= 7) {
sf->encode_breakout_thresh = (MIN(cm->width, cm->height) >= 720) ?
800 : 300;
}
}
static void set_rt_speed_feature(VP9_COMP *cpi, SPEED_FEATURES *sf,
int speed, vp9e_tune_content content) {
VP9_COMMON *const cm = &cpi->common;
const int is_keyframe = cm->frame_type == KEY_FRAME;
const int frames_since_key = is_keyframe ? 0 : cpi->rc.frames_since_key;
sf->static_segmentation = 0;
sf->adaptive_rd_thresh = 1;
sf->use_fast_coef_costing = 1;
if (speed >= 1) {
sf->use_square_partition_only = !frame_is_intra_only(cm);
sf->less_rectangular_check = 1;
sf->tx_size_search_method = frame_is_intra_only(cm) ? USE_FULL_RD
: USE_LARGESTALL;
sf->use_rd_breakout = 1;
sf->adaptive_motion_search = 1;
sf->adaptive_pred_interp_filter = 1;
sf->mv.auto_mv_step_size = 1;
sf->adaptive_rd_thresh = 2;
sf->intra_y_mode_mask[TX_32X32] = INTRA_DC_H_V;
sf->intra_uv_mode_mask[TX_32X32] = INTRA_DC_H_V;
sf->intra_uv_mode_mask[TX_16X16] = INTRA_DC_H_V;
}
if (speed >= 2) {
sf->mode_search_skip_flags = (cm->frame_type == KEY_FRAME) ? 0 :
FLAG_SKIP_INTRA_DIRMISMATCH |
FLAG_SKIP_INTRA_BESTINTER |
FLAG_SKIP_COMP_BESTINTRA |
FLAG_SKIP_INTRA_LOWVAR;
sf->adaptive_pred_interp_filter = 2;
// Disable reference masking if using spatial scaling since
// pred_mv_sad will not be set (since vp9_mv_pred will not
// be called).
// TODO(marpan/agrange): Fix this condition.
sf->reference_masking = (cpi->oxcf.resize_mode != RESIZE_DYNAMIC &&
cpi->svc.number_spatial_layers == 1) ? 1 : 0;
sf->disable_filter_search_var_thresh = 50;
sf->comp_inter_joint_search_thresh = BLOCK_SIZES;
sf->auto_min_max_partition_size = RELAXED_NEIGHBORING_MIN_MAX;
sf->lf_motion_threshold = LOW_MOTION_THRESHOLD;
sf->adjust_partitioning_from_last_frame = 1;
sf->last_partitioning_redo_frequency = 3;
sf->use_lp32x32fdct = 1;
sf->mode_skip_start = 11;
sf->intra_y_mode_mask[TX_16X16] = INTRA_DC_H_V;
}
if (speed >= 3) {
sf->use_square_partition_only = 1;
sf->disable_filter_search_var_thresh = 100;
sf->use_uv_intra_rd_estimate = 1;
sf->skip_encode_sb = 1;
sf->mv.subpel_iters_per_step = 1;
sf->adaptive_rd_thresh = 4;
sf->mode_skip_start = 6;
sf->allow_skip_recode = 0;
sf->optimize_coefficients = 0;
sf->disable_split_mask = DISABLE_ALL_SPLIT;
sf->lpf_pick = LPF_PICK_FROM_Q;
}
if (speed >= 4) {
int i;
sf->last_partitioning_redo_frequency = 4;
sf->adaptive_rd_thresh = 5;
sf->use_fast_coef_costing = 0;
sf->auto_min_max_partition_size = STRICT_NEIGHBORING_MIN_MAX;
sf->adjust_partitioning_from_last_frame =
cm->last_frame_type != cm->frame_type || (0 ==
(frames_since_key + 1) % sf->last_partitioning_redo_frequency);
sf->mv.subpel_force_stop = 1;
for (i = 0; i < TX_SIZES; i++) {
sf->intra_y_mode_mask[i] = INTRA_DC_H_V;
sf->intra_uv_mode_mask[i] = INTRA_DC;
}
sf->intra_y_mode_mask[TX_32X32] = INTRA_DC;
sf->frame_parameter_update = 0;
sf->mv.search_method = FAST_HEX;
sf->inter_mode_mask[BLOCK_32X32] = INTER_NEAREST_NEAR_NEW;
sf->inter_mode_mask[BLOCK_32X64] = INTER_NEAREST;
sf->inter_mode_mask[BLOCK_64X32] = INTER_NEAREST;
sf->inter_mode_mask[BLOCK_64X64] = INTER_NEAREST;
sf->max_intra_bsize = BLOCK_32X32;
sf->allow_skip_recode = 1;
}
if (speed >= 5) {
sf->use_quant_fp = !is_keyframe;
sf->auto_min_max_partition_size = is_keyframe ? RELAXED_NEIGHBORING_MIN_MAX
: STRICT_NEIGHBORING_MIN_MAX;
sf->default_max_partition_size = BLOCK_32X32;
sf->default_min_partition_size = BLOCK_8X8;
sf->force_frame_boost = is_keyframe ||
(frames_since_key % (sf->last_partitioning_redo_frequency << 1) == 1);
sf->max_delta_qindex = is_keyframe ? 20 : 15;
sf->partition_search_type = REFERENCE_PARTITION;
sf->use_nonrd_pick_mode = 1;
sf->allow_skip_recode = 0;
sf->inter_mode_mask[BLOCK_32X32] = INTER_NEAREST_NEW_ZERO;
sf->inter_mode_mask[BLOCK_32X64] = INTER_NEAREST_NEW_ZERO;
sf->inter_mode_mask[BLOCK_64X32] = INTER_NEAREST_NEW_ZERO;
sf->inter_mode_mask[BLOCK_64X64] = INTER_NEAREST_NEW_ZERO;
sf->adaptive_rd_thresh = 2;
// This feature is only enabled when partition search is disabled.
sf->reuse_inter_pred_sby = 1;
sf->partition_search_breakout_rate_thr = 200;
sf->coeff_prob_appx_step = 4;
sf->use_fast_coef_updates = is_keyframe ? TWO_LOOP : ONE_LOOP_REDUCED;
sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH;
sf->tx_size_search_method = is_keyframe ? USE_LARGESTALL : USE_TX_8X8;
if (!is_keyframe) {
int i;
if (content == VP9E_CONTENT_SCREEN) {
for (i = 0; i < BLOCK_SIZES; ++i)
sf->intra_y_mode_bsize_mask[i] = INTRA_DC_TM_H_V;
} else {
for (i = 0; i < BLOCK_SIZES; ++i)
if (i >= BLOCK_16X16)
sf->intra_y_mode_bsize_mask[i] = INTRA_DC;
else
// Use H and V intra mode for block sizes <= 16X16.
sf->intra_y_mode_bsize_mask[i] = INTRA_DC_H_V;
}
}
}
if (speed >= 6) {
// Adaptively switch between SOURCE_VAR_BASED_PARTITION and FIXED_PARTITION.
sf->partition_search_type = VAR_BASED_PARTITION;
// Turn on this to use non-RD key frame coding mode.
sf->use_nonrd_pick_mode = 1;
sf->mv.search_method = NSTEP;
sf->mv.reduce_first_step_size = 1;
sf->skip_encode_sb = 0;
}
if (speed >= 7) {
sf->adaptive_rd_thresh = 3;
sf->mv.search_method = FAST_DIAMOND;
sf->mv.fullpel_search_step_param = 10;
}
if (speed >= 8) {
sf->adaptive_rd_thresh = 4;
sf->mv.subpel_force_stop = 2;
sf->lpf_pick = LPF_PICK_MINIMAL_LPF;
}
}
void vp9_set_speed_features_framesize_dependent(VP9_COMP *cpi) {
SPEED_FEATURES *const sf = &cpi->sf;
const VP9EncoderConfig *const oxcf = &cpi->oxcf;
RD_OPT *const rd = &cpi->rd;
int i;
if (oxcf->mode == REALTIME) {
set_rt_speed_feature_framesize_dependent(cpi, sf, oxcf->speed);
} else if (oxcf->mode == GOOD) {
set_good_speed_feature_framesize_dependent(cpi, sf, oxcf->speed);
}
if (sf->disable_split_mask == DISABLE_ALL_SPLIT) {
sf->adaptive_pred_interp_filter = 0;
}
if (cpi->encode_breakout && oxcf->mode == REALTIME &&
sf->encode_breakout_thresh > cpi->encode_breakout) {
cpi->encode_breakout = sf->encode_breakout_thresh;
}
// Check for masked out split cases.
for (i = 0; i < MAX_REFS; ++i) {
if (sf->disable_split_mask & (1 << i)) {
rd->thresh_mult_sub8x8[i] = INT_MAX;
}
}
}
void vp9_set_speed_features_framesize_independent(VP9_COMP *cpi) {
SPEED_FEATURES *const sf = &cpi->sf;
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->td.mb;
const VP9EncoderConfig *const oxcf = &cpi->oxcf;
int i;
// best quality defaults
sf->frame_parameter_update = 1;
sf->mv.search_method = NSTEP;
sf->recode_loop = ALLOW_RECODE;
sf->mv.subpel_search_method = SUBPEL_TREE;
sf->mv.subpel_iters_per_step = 2;
sf->mv.subpel_force_stop = 0;
sf->optimize_coefficients = !is_lossless_requested(&cpi->oxcf);
sf->mv.reduce_first_step_size = 0;
sf->coeff_prob_appx_step = 1;
sf->mv.auto_mv_step_size = 0;
sf->mv.fullpel_search_step_param = 6;
sf->comp_inter_joint_search_thresh = BLOCK_4X4;
sf->adaptive_rd_thresh = 0;
sf->tx_size_search_method = USE_FULL_RD;
sf->use_lp32x32fdct = 0;
sf->adaptive_motion_search = 0;
sf->adaptive_pred_interp_filter = 0;
sf->adaptive_mode_search = 0;
sf->cb_pred_filter_search = 0;
sf->cb_partition_search = 0;
sf->motion_field_mode_search = 0;
sf->alt_ref_search_fp = 0;
sf->use_quant_fp = 0;
sf->reference_masking = 0;
sf->partition_search_type = SEARCH_PARTITION;
sf->less_rectangular_check = 0;
sf->use_square_partition_only = 0;
sf->auto_min_max_partition_size = NOT_IN_USE;
sf->rd_auto_partition_min_limit = BLOCK_4X4;
sf->default_max_partition_size = BLOCK_64X64;
sf->default_min_partition_size = BLOCK_4X4;
sf->adjust_partitioning_from_last_frame = 0;
sf->last_partitioning_redo_frequency = 4;
sf->disable_split_mask = 0;
sf->mode_search_skip_flags = 0;
sf->force_frame_boost = 0;
sf->max_delta_qindex = 0;
sf->disable_filter_search_var_thresh = 0;
sf->adaptive_interp_filter_search = 0;
sf->allow_partition_search_skip = 0;
for (i = 0; i < TX_SIZES; i++) {
sf->intra_y_mode_mask[i] = INTRA_ALL;
sf->intra_uv_mode_mask[i] = INTRA_ALL;
}
sf->use_rd_breakout = 0;
sf->skip_encode_sb = 0;
sf->use_uv_intra_rd_estimate = 0;
sf->allow_skip_recode = 0;
sf->lpf_pick = LPF_PICK_FROM_FULL_IMAGE;
sf->use_fast_coef_updates = TWO_LOOP;
sf->use_fast_coef_costing = 0;
sf->mode_skip_start = MAX_MODES; // Mode index at which mode skip mask set
sf->schedule_mode_search = 0;
sf->use_nonrd_pick_mode = 0;
for (i = 0; i < BLOCK_SIZES; ++i)
sf->inter_mode_mask[i] = INTER_ALL;
sf->max_intra_bsize = BLOCK_64X64;
sf->reuse_inter_pred_sby = 0;
// This setting only takes effect when partition_search_type is set
// to FIXED_PARTITION.
sf->always_this_block_size = BLOCK_16X16;
sf->search_type_check_frequency = 50;
sf->encode_breakout_thresh = 0;
// Recode loop tolerance %.
sf->recode_tolerance = 25;
sf->default_interp_filter = SWITCHABLE;
sf->tx_size_search_breakout = 0;
sf->partition_search_breakout_dist_thr = 0;
sf->partition_search_breakout_rate_thr = 0;
if (oxcf->mode == REALTIME)
set_rt_speed_feature(cpi, sf, oxcf->speed, oxcf->content);
else if (oxcf->mode == GOOD)
set_good_speed_feature(cpi, cm, sf, oxcf->speed);
cpi->full_search_sad = vp9_full_search_sad;
cpi->diamond_search_sad = oxcf->mode == BEST ? vp9_full_range_search
: vp9_diamond_search_sad;
// Slow quant, dct and trellis not worthwhile for first pass
// so make sure they are always turned off.
if (oxcf->pass == 1)
sf->optimize_coefficients = 0;
// No recode for 1 pass.
if (oxcf->pass == 0) {
sf->recode_loop = DISALLOW_RECODE;
sf->optimize_coefficients = 0;
}
if (sf->mv.subpel_search_method == SUBPEL_TREE) {
cpi->find_fractional_mv_step = vp9_find_best_sub_pixel_tree;
} else if (sf->mv.subpel_search_method == SUBPEL_TREE_PRUNED) {
cpi->find_fractional_mv_step = vp9_find_best_sub_pixel_tree_pruned;
} else if (sf->mv.subpel_search_method == SUBPEL_TREE_PRUNED_MORE) {
cpi->find_fractional_mv_step = vp9_find_best_sub_pixel_tree_pruned_more;
} else if (sf->mv.subpel_search_method == SUBPEL_TREE_PRUNED_EVENMORE) {
cpi->find_fractional_mv_step = vp9_find_best_sub_pixel_tree_pruned_evenmore;
}
x->optimize = sf->optimize_coefficients == 1 && oxcf->pass != 1;
x->min_partition_size = sf->default_min_partition_size;
x->max_partition_size = sf->default_max_partition_size;
if (!cpi->oxcf.frame_periodic_boost) {
sf->max_delta_qindex = 0;
}
}
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