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vpx/vp9/encoder/vp9_encodeframe.c
Yunqing Wang 4d2c376923 Early termination in encoding partition search 
In the partition search, the encoder checks all possible
partitionings in the superblock's partition search tree.
This patch proposed a set of criteria for partition search
early termination, which effectively decided whether or
not to terminate the search in current branch based on the
"skippable" result of the quantized transform coefficients.
The "skippable" information was gathered during the
partition mode search, and no overhead calculations were
introduced.

This patch gives significant encoding speed gains without
sacrificing the quality.

Borg test results:
1. At speed 1,
   stdhd set: psnr: +0.074%, ssim: +0.093%;
   derf set:  psnr: -0.024%, ssim: +0.011%;
2. At speed 2,
   stdhd set: psnr: +0.033%, ssim: +0.100%;
   derf set:  psnr: -0.062%, ssim: +0.003%;
3. At speed 3,
   stdhd set: psnr: +0.060%, ssim: +0.190%;
   derf set:  psnr: -0.064%, ssim: -0.002%;
4. At speed 4,
   stdhd set: psnr: +0.070%, ssim: +0.143%;
   derf set:  psnr: -0.104%, ssim: +0.039%;

The speedup ranges from several percent to 60+%.
                 speed1    speed2    speed3    speed4
(1080p, 100f):
old_town_cross:  48.2%     23.9%     20.8%     16.5%
park_joy:        11.4%     17.8%     29.4%     18.2%
pedestrian_area: 10.7%      4.0%      4.2%      2.4%
(720p, 200f):
mobcal:          68.1%     36.3%     34.4%     17.7%
parkrun:         15.8%     24.2%     37.1%     16.8%
shields:         45.1%     32.8%     30.1%      9.6%
(cif, 300f)
bus:              3.7%     10.4%     14.0%      7.9%
deadline:        13.6%     14.8%     12.6%     10.9%
mobile:           5.3%     11.5%     14.7%     10.7%

Change-Id: I246c38fb952ad762ce5e365711235b605f470a66
2014-08-28 11:27:28 -07:00

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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 <math.h>
#include <stdio.h>
#include "./vp9_rtcd.h"
#include "./vpx_config.h"
#include "vpx_ports/vpx_timer.h"
#include "vp9/common/vp9_common.h"
#include "vp9/common/vp9_entropy.h"
#include "vp9/common/vp9_entropymode.h"
#include "vp9/common/vp9_idct.h"
#include "vp9/common/vp9_mvref_common.h"
#include "vp9/common/vp9_pred_common.h"
#include "vp9/common/vp9_quant_common.h"
#include "vp9/common/vp9_reconintra.h"
#include "vp9/common/vp9_reconinter.h"
#include "vp9/common/vp9_seg_common.h"
#include "vp9/common/vp9_systemdependent.h"
#include "vp9/common/vp9_tile_common.h"
#include "vp9/encoder/vp9_aq_complexity.h"
#include "vp9/encoder/vp9_aq_cyclicrefresh.h"
#include "vp9/encoder/vp9_aq_variance.h"
#include "vp9/encoder/vp9_encodeframe.h"
#include "vp9/encoder/vp9_encodemb.h"
#include "vp9/encoder/vp9_encodemv.h"
#include "vp9/encoder/vp9_extend.h"
#include "vp9/encoder/vp9_pickmode.h"
#include "vp9/encoder/vp9_rd.h"
#include "vp9/encoder/vp9_rdopt.h"
#include "vp9/encoder/vp9_segmentation.h"
#include "vp9/encoder/vp9_tokenize.h"
#define GF_ZEROMV_ZBIN_BOOST 0
#define LF_ZEROMV_ZBIN_BOOST 0
#define MV_ZBIN_BOOST 0
#define SPLIT_MV_ZBIN_BOOST 0
#define INTRA_ZBIN_BOOST 0
static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t, int output_enabled,
int mi_row, int mi_col, BLOCK_SIZE bsize,
PICK_MODE_CONTEXT *ctx);
// Motion vector component magnitude threshold for defining fast motion.
#define FAST_MOTION_MV_THRESH 24
// This is used as a reference when computing the source variance for the
// purposes of activity masking.
// Eventually this should be replaced by custom no-reference routines,
// which will be faster.
static const uint8_t VP9_VAR_OFFS[64] = {
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128
};
static unsigned int get_sby_perpixel_variance(VP9_COMP *cpi,
const struct buf_2d *ref,
BLOCK_SIZE bs) {
unsigned int sse;
const unsigned int var = cpi->fn_ptr[bs].vf(ref->buf, ref->stride,
VP9_VAR_OFFS, 0, &sse);
return ROUND_POWER_OF_TWO(var, num_pels_log2_lookup[bs]);
}
static unsigned int get_sby_perpixel_diff_variance(VP9_COMP *cpi,
const struct buf_2d *ref,
int mi_row, int mi_col,
BLOCK_SIZE bs) {
const YV12_BUFFER_CONFIG *last = get_ref_frame_buffer(cpi, LAST_FRAME);
const uint8_t* last_y = &last->y_buffer[mi_row * MI_SIZE * last->y_stride +
mi_col * MI_SIZE];
unsigned int sse;
const unsigned int var = cpi->fn_ptr[bs].vf(ref->buf, ref->stride,
last_y, last->y_stride, &sse);
return ROUND_POWER_OF_TWO(var, num_pels_log2_lookup[bs]);
}
static BLOCK_SIZE get_rd_var_based_fixed_partition(VP9_COMP *cpi,
int mi_row,
int mi_col) {
unsigned int var = get_sby_perpixel_diff_variance(cpi, &cpi->mb.plane[0].src,
mi_row, mi_col,
BLOCK_64X64);
if (var < 8)
return BLOCK_64X64;
else if (var < 128)
return BLOCK_32X32;
else if (var < 2048)
return BLOCK_16X16;
else
return BLOCK_8X8;
}
static BLOCK_SIZE get_nonrd_var_based_fixed_partition(VP9_COMP *cpi,
int mi_row,
int mi_col) {
unsigned int var = get_sby_perpixel_diff_variance(cpi, &cpi->mb.plane[0].src,
mi_row, mi_col,
BLOCK_64X64);
if (var < 4)
return BLOCK_64X64;
else if (var < 10)
return BLOCK_32X32;
else
return BLOCK_16X16;
}
// Lighter version of set_offsets that only sets the mode info
// pointers.
static INLINE void set_modeinfo_offsets(VP9_COMMON *const cm,
MACROBLOCKD *const xd,
int mi_row,
int mi_col) {
const int idx_str = xd->mi_stride * mi_row + mi_col;
xd->mi = cm->mi_grid_visible + idx_str;
xd->mi[0] = cm->mi + idx_str;
}
static void set_offsets(VP9_COMP *cpi, const TileInfo *const tile,
int mi_row, int mi_col, BLOCK_SIZE bsize) {
MACROBLOCK *const x = &cpi->mb;
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *mbmi;
const int mi_width = num_8x8_blocks_wide_lookup[bsize];
const int mi_height = num_8x8_blocks_high_lookup[bsize];
const struct segmentation *const seg = &cm->seg;
set_skip_context(xd, mi_row, mi_col);
set_modeinfo_offsets(cm, xd, mi_row, mi_col);
mbmi = &xd->mi[0]->mbmi;
// Set up destination pointers.
vp9_setup_dst_planes(xd->plane, get_frame_new_buffer(cm), mi_row, mi_col);
// Set up limit values for MV components.
// Mv beyond the range do not produce new/different prediction block.
x->mv_row_min = -(((mi_row + mi_height) * MI_SIZE) + VP9_INTERP_EXTEND);
x->mv_col_min = -(((mi_col + mi_width) * MI_SIZE) + VP9_INTERP_EXTEND);
x->mv_row_max = (cm->mi_rows - mi_row) * MI_SIZE + VP9_INTERP_EXTEND;
x->mv_col_max = (cm->mi_cols - mi_col) * MI_SIZE + VP9_INTERP_EXTEND;
// Set up distance of MB to edge of frame in 1/8th pel units.
assert(!(mi_col & (mi_width - 1)) && !(mi_row & (mi_height - 1)));
set_mi_row_col(xd, tile, mi_row, mi_height, mi_col, mi_width,
cm->mi_rows, cm->mi_cols);
// Set up source buffers.
vp9_setup_src_planes(x, cpi->Source, mi_row, mi_col);
// R/D setup.
x->rddiv = cpi->rd.RDDIV;
x->rdmult = cpi->rd.RDMULT;
// Setup segment ID.
if (seg->enabled) {
if (cpi->oxcf.aq_mode != VARIANCE_AQ) {
const uint8_t *const map = seg->update_map ? cpi->segmentation_map
: cm->last_frame_seg_map;
mbmi->segment_id = vp9_get_segment_id(cm, map, bsize, mi_row, mi_col);
}
vp9_init_plane_quantizers(cpi, x);
x->encode_breakout = cpi->segment_encode_breakout[mbmi->segment_id];
} else {
mbmi->segment_id = 0;
x->encode_breakout = cpi->encode_breakout;
}
}
static void duplicate_mode_info_in_sb(VP9_COMMON *cm, MACROBLOCKD *xd,
int mi_row, int mi_col,
BLOCK_SIZE bsize) {
const int block_width = num_8x8_blocks_wide_lookup[bsize];
const int block_height = num_8x8_blocks_high_lookup[bsize];
int i, j;
for (j = 0; j < block_height; ++j)
for (i = 0; i < block_width; ++i) {
if (mi_row + j < cm->mi_rows && mi_col + i < cm->mi_cols)
xd->mi[j * xd->mi_stride + i] = xd->mi[0];
}
}
static void set_block_size(VP9_COMP * const cpi,
int mi_row, int mi_col,
BLOCK_SIZE bsize) {
if (cpi->common.mi_cols > mi_col && cpi->common.mi_rows > mi_row) {
MACROBLOCKD *const xd = &cpi->mb.e_mbd;
set_modeinfo_offsets(&cpi->common, xd, mi_row, mi_col);
xd->mi[0]->mbmi.sb_type = bsize;
duplicate_mode_info_in_sb(&cpi->common, xd, mi_row, mi_col, bsize);
}
}
typedef struct {
int64_t sum_square_error;
int64_t sum_error;
int count;
int variance;
} var;
typedef struct {
var none;
var horz[2];
var vert[2];
} partition_variance;
typedef struct {
partition_variance part_variances;
var split[4];
} v8x8;
typedef struct {
partition_variance part_variances;
v8x8 split[4];
} v16x16;
typedef struct {
partition_variance part_variances;
v16x16 split[4];
} v32x32;
typedef struct {
partition_variance part_variances;
v32x32 split[4];
} v64x64;
typedef struct {
partition_variance *part_variances;
var *split[4];
} variance_node;
typedef enum {
V16X16,
V32X32,
V64X64,
} TREE_LEVEL;
static void tree_to_node(void *data, BLOCK_SIZE bsize, variance_node *node) {
int i;
node->part_variances = NULL;
vpx_memset(node->split, 0, sizeof(node->split));
switch (bsize) {
case BLOCK_64X64: {
v64x64 *vt = (v64x64 *) data;
node->part_variances = &vt->part_variances;
for (i = 0; i < 4; i++)
node->split[i] = &vt->split[i].part_variances.none;
break;
}
case BLOCK_32X32: {
v32x32 *vt = (v32x32 *) data;
node->part_variances = &vt->part_variances;
for (i = 0; i < 4; i++)
node->split[i] = &vt->split[i].part_variances.none;
break;
}
case BLOCK_16X16: {
v16x16 *vt = (v16x16 *) data;
node->part_variances = &vt->part_variances;
for (i = 0; i < 4; i++)
node->split[i] = &vt->split[i].part_variances.none;
break;
}
case BLOCK_8X8: {
v8x8 *vt = (v8x8 *) data;
node->part_variances = &vt->part_variances;
for (i = 0; i < 4; i++)
node->split[i] = &vt->split[i];
break;
}
default: {
assert(0);
break;
}
}
}
// Set variance values given sum square error, sum error, count.
static void fill_variance(int64_t s2, int64_t s, int c, var *v) {
v->sum_square_error = s2;
v->sum_error = s;
v->count = c;
if (c > 0)
v->variance = (int)(256 *
(v->sum_square_error - v->sum_error * v->sum_error /
v->count) / v->count);
else
v->variance = 0;
}
void sum_2_variances(const var *a, const var *b, var *r) {
fill_variance(a->sum_square_error + b->sum_square_error,
a->sum_error + b->sum_error, a->count + b->count, r);
}
static void fill_variance_tree(void *data, BLOCK_SIZE bsize) {
variance_node node;
tree_to_node(data, bsize, &node);
sum_2_variances(node.split[0], node.split[1], &node.part_variances->horz[0]);
sum_2_variances(node.split[2], node.split[3], &node.part_variances->horz[1]);
sum_2_variances(node.split[0], node.split[2], &node.part_variances->vert[0]);
sum_2_variances(node.split[1], node.split[3], &node.part_variances->vert[1]);
sum_2_variances(&node.part_variances->vert[0], &node.part_variances->vert[1],
&node.part_variances->none);
}
static int set_vt_partitioning(VP9_COMP *cpi,
void *data,
BLOCK_SIZE bsize,
int mi_row,
int mi_col) {
VP9_COMMON * const cm = &cpi->common;
variance_node vt;
const int block_width = num_8x8_blocks_wide_lookup[bsize];
const int block_height = num_8x8_blocks_high_lookup[bsize];
// TODO(debargha): Choose this more intelligently.
const int64_t threshold_multiplier = 25;
int64_t threshold = threshold_multiplier * cpi->common.base_qindex;
assert(block_height == block_width);
tree_to_node(data, bsize, &vt);
// Split none is available only if we have more than half a block size
// in width and height inside the visible image.
if (mi_col + block_width / 2 < cm->mi_cols &&
mi_row + block_height / 2 < cm->mi_rows &&
vt.part_variances->none.variance < threshold) {
set_block_size(cpi, mi_row, mi_col, bsize);
return 1;
}
// Vertical split is available on all but the bottom border.
if (mi_row + block_height / 2 < cm->mi_rows &&
vt.part_variances->vert[0].variance < threshold &&
vt.part_variances->vert[1].variance < threshold) {
BLOCK_SIZE subsize = get_subsize(bsize, PARTITION_VERT);
set_block_size(cpi, mi_row, mi_col, subsize);
set_block_size(cpi, mi_row, mi_col + block_width / 2, subsize);
return 1;
}
// Horizontal split is available on all but the right border.
if (mi_col + block_width / 2 < cm->mi_cols &&
vt.part_variances->horz[0].variance < threshold &&
vt.part_variances->horz[1].variance < threshold) {
BLOCK_SIZE subsize = get_subsize(bsize, PARTITION_HORZ);
set_block_size(cpi, mi_row, mi_col, subsize);
set_block_size(cpi, mi_row + block_height / 2, mi_col, subsize);
return 1;
}
return 0;
}
// TODO(debargha): Fix this function and make it work as expected.
static void choose_partitioning(VP9_COMP *cpi,
const TileInfo *const tile,
int mi_row, int mi_col) {
VP9_COMMON * const cm = &cpi->common;
MACROBLOCK *x = &cpi->mb;
MACROBLOCKD *xd = &cpi->mb.e_mbd;
int i, j, k;
v64x64 vt;
uint8_t *s;
const uint8_t *d;
int sp;
int dp;
int pixels_wide = 64, pixels_high = 64;
int_mv nearest_mv, near_mv;
const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, LAST_FRAME);
const struct scale_factors *const sf = &cm->frame_refs[LAST_FRAME - 1].sf;
vp9_zero(vt);
set_offsets(cpi, tile, mi_row, mi_col, BLOCK_64X64);
if (xd->mb_to_right_edge < 0)
pixels_wide += (xd->mb_to_right_edge >> 3);
if (xd->mb_to_bottom_edge < 0)
pixels_high += (xd->mb_to_bottom_edge >> 3);
s = x->plane[0].src.buf;
sp = x->plane[0].src.stride;
if (cm->frame_type != KEY_FRAME) {
vp9_setup_pre_planes(xd, 0, yv12, mi_row, mi_col, sf);
xd->mi[0]->mbmi.ref_frame[0] = LAST_FRAME;
xd->mi[0]->mbmi.sb_type = BLOCK_64X64;
vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv,
xd->mi[0]->mbmi.ref_mvs[LAST_FRAME],
&nearest_mv, &near_mv);
xd->mi[0]->mbmi.mv[0] = nearest_mv;
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, BLOCK_64X64);
d = xd->plane[0].dst.buf;
dp = xd->plane[0].dst.stride;
} else {
d = VP9_VAR_OFFS;
dp = 0;
}
// Fill in the entire tree of 8x8 variances for splits.
for (i = 0; i < 4; i++) {
const int x32_idx = ((i & 1) << 5);
const int y32_idx = ((i >> 1) << 5);
for (j = 0; j < 4; j++) {
const int x16_idx = x32_idx + ((j & 1) << 4);
const int y16_idx = y32_idx + ((j >> 1) << 4);
v16x16 *vst = &vt.split[i].split[j];
for (k = 0; k < 4; k++) {
int x_idx = x16_idx + ((k & 1) << 3);
int y_idx = y16_idx + ((k >> 1) << 3);
unsigned int sse = 0;
int sum = 0;
if (x_idx < pixels_wide && y_idx < pixels_high)
vp9_get8x8var(s + y_idx * sp + x_idx, sp,
d + y_idx * dp + x_idx, dp, &sse, &sum);
fill_variance(sse, sum, 64, &vst->split[k].part_variances.none);
}
}
}
// Fill the rest of the variance tree by summing split partition values.
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
fill_variance_tree(&vt.split[i].split[j], BLOCK_16X16);
}
fill_variance_tree(&vt.split[i], BLOCK_32X32);
}
fill_variance_tree(&vt, BLOCK_64X64);
// Now go through the entire structure, splitting every block size until
// we get to one that's got a variance lower than our threshold, or we
// hit 8x8.
if (!set_vt_partitioning(cpi, &vt, BLOCK_64X64,
mi_row, mi_col)) {
for (i = 0; i < 4; ++i) {
const int x32_idx = ((i & 1) << 2);
const int y32_idx = ((i >> 1) << 2);
if (!set_vt_partitioning(cpi, &vt.split[i], BLOCK_32X32,
(mi_row + y32_idx), (mi_col + x32_idx))) {
for (j = 0; j < 4; ++j) {
const int x16_idx = ((j & 1) << 1);
const int y16_idx = ((j >> 1) << 1);
// NOTE: This is a temporary hack to disable 8x8 partitions,
// since it works really bad - possibly due to a bug
#define DISABLE_8X8_VAR_BASED_PARTITION
#ifdef DISABLE_8X8_VAR_BASED_PARTITION
if (mi_row + y32_idx + y16_idx + 1 < cm->mi_rows &&
mi_row + x32_idx + x16_idx + 1 < cm->mi_cols) {
set_block_size(cpi,
(mi_row + y32_idx + y16_idx),
(mi_col + x32_idx + x16_idx),
BLOCK_16X16);
} else {
for (k = 0; k < 4; ++k) {
const int x8_idx = (k & 1);
const int y8_idx = (k >> 1);
set_block_size(cpi,
(mi_row + y32_idx + y16_idx + y8_idx),
(mi_col + x32_idx + x16_idx + x8_idx),
BLOCK_8X8);
}
}
#else
if (!set_vt_partitioning(cpi, &vt.split[i].split[j], tile,
BLOCK_16X16,
(mi_row + y32_idx + y16_idx),
(mi_col + x32_idx + x16_idx), 2)) {
for (k = 0; k < 4; ++k) {
const int x8_idx = (k & 1);
const int y8_idx = (k >> 1);
set_block_size(cpi,
(mi_row + y32_idx + y16_idx + y8_idx),
(mi_col + x32_idx + x16_idx + x8_idx),
BLOCK_8X8);
}
}
#endif
}
}
}
}
}
static void update_state(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
int mi_row, int mi_col, BLOCK_SIZE bsize,
int output_enabled) {
int i, x_idx, y;
VP9_COMMON *const cm = &cpi->common;
RD_OPT *const rd_opt = &cpi->rd;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
struct macroblock_plane *const p = x->plane;
struct macroblockd_plane *const pd = xd->plane;
MODE_INFO *mi = &ctx->mic;
MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
MODE_INFO *mi_addr = xd->mi[0];
const struct segmentation *const seg = &cm->seg;
const int mis = cm->mi_stride;
const int mi_width = num_8x8_blocks_wide_lookup[bsize];
const int mi_height = num_8x8_blocks_high_lookup[bsize];
int max_plane;
assert(mi->mbmi.sb_type == bsize);
*mi_addr = *mi;
// If segmentation in use
if (seg->enabled && output_enabled) {
// For in frame complexity AQ copy the segment id from the segment map.
if (cpi->oxcf.aq_mode == COMPLEXITY_AQ) {
const uint8_t *const map = seg->update_map ? cpi->segmentation_map
: cm->last_frame_seg_map;
mi_addr->mbmi.segment_id =
vp9_get_segment_id(cm, map, bsize, mi_row, mi_col);
}
// Else for cyclic refresh mode update the segment map, set the segment id
// and then update the quantizer.
if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) {
vp9_cyclic_refresh_update_segment(cpi, &xd->mi[0]->mbmi,
mi_row, mi_col, bsize, 1);
}
}
max_plane = is_inter_block(mbmi) ? MAX_MB_PLANE : 1;
for (i = 0; i < max_plane; ++i) {
p[i].coeff = ctx->coeff_pbuf[i][1];
p[i].qcoeff = ctx->qcoeff_pbuf[i][1];
pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][1];
p[i].eobs = ctx->eobs_pbuf[i][1];
}
for (i = max_plane; i < MAX_MB_PLANE; ++i) {
p[i].coeff = ctx->coeff_pbuf[i][2];
p[i].qcoeff = ctx->qcoeff_pbuf[i][2];
pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][2];
p[i].eobs = ctx->eobs_pbuf[i][2];
}
// Restore the coding context of the MB to that that was in place
// when the mode was picked for it
for (y = 0; y < mi_height; y++)
for (x_idx = 0; x_idx < mi_width; x_idx++)
if ((xd->mb_to_right_edge >> (3 + MI_SIZE_LOG2)) + mi_width > x_idx
&& (xd->mb_to_bottom_edge >> (3 + MI_SIZE_LOG2)) + mi_height > y) {
xd->mi[x_idx + y * mis] = mi_addr;
}
if (cpi->oxcf.aq_mode)
vp9_init_plane_quantizers(cpi, x);
// FIXME(rbultje) I'm pretty sure this should go to the end of this block
// (i.e. after the output_enabled)
if (bsize < BLOCK_32X32) {
if (bsize < BLOCK_16X16)
ctx->tx_rd_diff[ALLOW_16X16] = ctx->tx_rd_diff[ALLOW_8X8];
ctx->tx_rd_diff[ALLOW_32X32] = ctx->tx_rd_diff[ALLOW_16X16];
}
if (is_inter_block(mbmi) && mbmi->sb_type < BLOCK_8X8) {
mbmi->mv[0].as_int = mi->bmi[3].as_mv[0].as_int;
mbmi->mv[1].as_int = mi->bmi[3].as_mv[1].as_int;
}
x->skip = ctx->skip;
vpx_memcpy(x->zcoeff_blk[mbmi->tx_size], ctx->zcoeff_blk,
sizeof(uint8_t) * ctx->num_4x4_blk);
if (!output_enabled)
return;
if (!vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) {
for (i = 0; i < TX_MODES; i++)
rd_opt->tx_select_diff[i] += ctx->tx_rd_diff[i];
}
#if CONFIG_INTERNAL_STATS
if (frame_is_intra_only(cm)) {
static const int kf_mode_index[] = {
THR_DC /*DC_PRED*/,
THR_V_PRED /*V_PRED*/,
THR_H_PRED /*H_PRED*/,
THR_D45_PRED /*D45_PRED*/,
THR_D135_PRED /*D135_PRED*/,
THR_D117_PRED /*D117_PRED*/,
THR_D153_PRED /*D153_PRED*/,
THR_D207_PRED /*D207_PRED*/,
THR_D63_PRED /*D63_PRED*/,
THR_TM /*TM_PRED*/,
};
++cpi->mode_chosen_counts[kf_mode_index[mbmi->mode]];
} else {
// Note how often each mode chosen as best
++cpi->mode_chosen_counts[ctx->best_mode_index];
}
#endif
if (!frame_is_intra_only(cm)) {
if (is_inter_block(mbmi)) {
vp9_update_mv_count(cm, xd);
if (cm->interp_filter == SWITCHABLE) {
const int ctx = vp9_get_pred_context_switchable_interp(xd);
++cm->counts.switchable_interp[ctx][mbmi->interp_filter];
}
}
rd_opt->comp_pred_diff[SINGLE_REFERENCE] += ctx->single_pred_diff;
rd_opt->comp_pred_diff[COMPOUND_REFERENCE] += ctx->comp_pred_diff;
rd_opt->comp_pred_diff[REFERENCE_MODE_SELECT] += ctx->hybrid_pred_diff;
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
rd_opt->filter_diff[i] += ctx->best_filter_diff[i];
}
}
void vp9_setup_src_planes(MACROBLOCK *x, const YV12_BUFFER_CONFIG *src,
int mi_row, int mi_col) {
uint8_t *const buffers[3] = {src->y_buffer, src->u_buffer, src->v_buffer };
const int strides[3] = {src->y_stride, src->uv_stride, src->uv_stride };
int i;
// Set current frame pointer.
x->e_mbd.cur_buf = src;
for (i = 0; i < MAX_MB_PLANE; i++)
setup_pred_plane(&x->plane[i].src, buffers[i], strides[i], mi_row, mi_col,
NULL, x->e_mbd.plane[i].subsampling_x,
x->e_mbd.plane[i].subsampling_y);
}
static void set_mode_info_seg_skip(MACROBLOCK *x, TX_MODE tx_mode, int *rate,
int64_t *dist, BLOCK_SIZE bsize) {
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
INTERP_FILTER filter_ref;
if (xd->up_available)
filter_ref = xd->mi[-xd->mi_stride]->mbmi.interp_filter;
else if (xd->left_available)
filter_ref = xd->mi[-1]->mbmi.interp_filter;
else
filter_ref = EIGHTTAP;
mbmi->sb_type = bsize;
mbmi->mode = ZEROMV;
mbmi->tx_size = MIN(max_txsize_lookup[bsize],
tx_mode_to_biggest_tx_size[tx_mode]);
mbmi->skip = 1;
mbmi->uv_mode = DC_PRED;
mbmi->ref_frame[0] = LAST_FRAME;
mbmi->ref_frame[1] = NONE;
mbmi->mv[0].as_int = 0;
mbmi->interp_filter = filter_ref;
xd->mi[0]->bmi[0].as_mv[0].as_int = 0;
x->skip = 1;
*rate = 0;
*dist = 0;
}
static void rd_pick_sb_modes(VP9_COMP *cpi, const TileInfo *const tile,
int mi_row, int mi_col,
int *totalrate, int64_t *totaldist,
BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx,
int64_t best_rd, int block) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *mbmi;
struct macroblock_plane *const p = x->plane;
struct macroblockd_plane *const pd = xd->plane;
const AQ_MODE aq_mode = cpi->oxcf.aq_mode;
int i, orig_rdmult;
double rdmult_ratio;
vp9_clear_system_state();
rdmult_ratio = 1.0; // avoid uninitialized warnings
// Use the lower precision, but faster, 32x32 fdct for mode selection.
x->use_lp32x32fdct = 1;
// TODO(JBB): Most other places in the code instead of calling the function
// and then checking if its not the first 8x8 we put the check in the
// calling function. Do that here.
if (bsize < BLOCK_8X8) {
// When ab_index = 0 all sub-blocks are handled, so for ab_index != 0
// there is nothing to be done.
if (block != 0) {
*totalrate = 0;
*totaldist = 0;
return;
}
}
set_offsets(cpi, tile, mi_row, mi_col, bsize);
mbmi = &xd->mi[0]->mbmi;
mbmi->sb_type = bsize;
for (i = 0; i < MAX_MB_PLANE; ++i) {
p[i].coeff = ctx->coeff_pbuf[i][0];
p[i].qcoeff = ctx->qcoeff_pbuf[i][0];
pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][0];
p[i].eobs = ctx->eobs_pbuf[i][0];
}
ctx->is_coded = 0;
ctx->skippable = 0;
x->skip_recode = 0;
// Set to zero to make sure we do not use the previous encoded frame stats
mbmi->skip = 0;
x->source_variance = get_sby_perpixel_variance(cpi, &x->plane[0].src, bsize);
// Save rdmult before it might be changed, so it can be restored later.
orig_rdmult = x->rdmult;
if (aq_mode == VARIANCE_AQ) {
const int energy = bsize <= BLOCK_16X16 ? x->mb_energy
: vp9_block_energy(cpi, x, bsize);
if (cm->frame_type == KEY_FRAME ||
cpi->refresh_alt_ref_frame ||
(cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref)) {
mbmi->segment_id = vp9_vaq_segment_id(energy);
} else {
const uint8_t *const map = cm->seg.update_map ? cpi->segmentation_map
: cm->last_frame_seg_map;
mbmi->segment_id = vp9_get_segment_id(cm, map, bsize, mi_row, mi_col);
}
rdmult_ratio = vp9_vaq_rdmult_ratio(energy);
vp9_init_plane_quantizers(cpi, x);
vp9_clear_system_state();
x->rdmult = (int)round(x->rdmult * rdmult_ratio);
} else if (aq_mode == COMPLEXITY_AQ) {
const int mi_offset = mi_row * cm->mi_cols + mi_col;
unsigned char complexity = cpi->complexity_map[mi_offset];
const int is_edge = (mi_row <= 1) || (mi_row >= (cm->mi_rows - 2)) ||
(mi_col <= 1) || (mi_col >= (cm->mi_cols - 2));
if (!is_edge && (complexity > 128))
x->rdmult += ((x->rdmult * (complexity - 128)) / 256);
} else if (aq_mode == CYCLIC_REFRESH_AQ) {
const uint8_t *const map = cm->seg.update_map ? cpi->segmentation_map
: cm->last_frame_seg_map;
// If segment 1, use rdmult for that segment.
if (vp9_get_segment_id(cm, map, bsize, mi_row, mi_col))
x->rdmult = vp9_cyclic_refresh_get_rdmult(cpi->cyclic_refresh);
}
// Find best coding mode & reconstruct the MB so it is available
// as a predictor for MBs that follow in the SB
if (frame_is_intra_only(cm)) {
vp9_rd_pick_intra_mode_sb(cpi, x, totalrate, totaldist, bsize, ctx,
best_rd);
} else {
if (bsize >= BLOCK_8X8) {
if (vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP))
vp9_rd_pick_inter_mode_sb_seg_skip(cpi, x, totalrate, totaldist, bsize,
ctx, best_rd);
else
vp9_rd_pick_inter_mode_sb(cpi, x, tile, mi_row, mi_col,
totalrate, totaldist, bsize, ctx, best_rd);
} else {
vp9_rd_pick_inter_mode_sub8x8(cpi, x, tile, mi_row, mi_col, totalrate,
totaldist, bsize, ctx, best_rd);
}
}
x->rdmult = orig_rdmult;
if (aq_mode == VARIANCE_AQ && *totalrate != INT_MAX) {
vp9_clear_system_state();
*totalrate = (int)round(*totalrate * rdmult_ratio);
}
}
static void update_stats(VP9_COMMON *cm, const MACROBLOCK *x) {
const MACROBLOCKD *const xd = &x->e_mbd;
const MODE_INFO *const mi = xd->mi[0];
const MB_MODE_INFO *const mbmi = &mi->mbmi;
if (!frame_is_intra_only(cm)) {
const int seg_ref_active = vp9_segfeature_active(&cm->seg, mbmi->segment_id,
SEG_LVL_REF_FRAME);
if (!seg_ref_active) {
FRAME_COUNTS *const counts = &cm->counts;
const int inter_block = is_inter_block(mbmi);
counts->intra_inter[vp9_get_intra_inter_context(xd)][inter_block]++;
// If the segment reference feature is enabled we have only a single
// reference frame allowed for the segment so exclude it from
// the reference frame counts used to work out probabilities.
if (inter_block) {
const MV_REFERENCE_FRAME ref0 = mbmi->ref_frame[0];
if (cm->reference_mode == REFERENCE_MODE_SELECT)
counts->comp_inter[vp9_get_reference_mode_context(cm, xd)]
[has_second_ref(mbmi)]++;
if (has_second_ref(mbmi)) {
counts->comp_ref[vp9_get_pred_context_comp_ref_p(cm, xd)]
[ref0 == GOLDEN_FRAME]++;
} else {
counts->single_ref[vp9_get_pred_context_single_ref_p1(xd)][0]
[ref0 != LAST_FRAME]++;
if (ref0 != LAST_FRAME)
counts->single_ref[vp9_get_pred_context_single_ref_p2(xd)][1]
[ref0 != GOLDEN_FRAME]++;
}
}
}
}
}
static void restore_context(VP9_COMP *cpi, int mi_row, int mi_col,
ENTROPY_CONTEXT a[16 * MAX_MB_PLANE],
ENTROPY_CONTEXT l[16 * MAX_MB_PLANE],
PARTITION_CONTEXT sa[8], PARTITION_CONTEXT sl[8],
BLOCK_SIZE bsize) {
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
int p;
const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize];
const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize];
int mi_width = num_8x8_blocks_wide_lookup[bsize];
int mi_height = num_8x8_blocks_high_lookup[bsize];
for (p = 0; p < MAX_MB_PLANE; p++) {
vpx_memcpy(
xd->above_context[p] + ((mi_col * 2) >> xd->plane[p].subsampling_x),
a + num_4x4_blocks_wide * p,
(sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_wide) >>
xd->plane[p].subsampling_x);
vpx_memcpy(
xd->left_context[p]
+ ((mi_row & MI_MASK) * 2 >> xd->plane[p].subsampling_y),
l + num_4x4_blocks_high * p,
(sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_high) >>
xd->plane[p].subsampling_y);
}
vpx_memcpy(xd->above_seg_context + mi_col, sa,
sizeof(*xd->above_seg_context) * mi_width);
vpx_memcpy(xd->left_seg_context + (mi_row & MI_MASK), sl,
sizeof(xd->left_seg_context[0]) * mi_height);
}
static void save_context(VP9_COMP *cpi, int mi_row, int mi_col,
ENTROPY_CONTEXT a[16 * MAX_MB_PLANE],
ENTROPY_CONTEXT l[16 * MAX_MB_PLANE],
PARTITION_CONTEXT sa[8], PARTITION_CONTEXT sl[8],
BLOCK_SIZE bsize) {
const MACROBLOCK *const x = &cpi->mb;
const MACROBLOCKD *const xd = &x->e_mbd;
int p;
const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize];
const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize];
int mi_width = num_8x8_blocks_wide_lookup[bsize];
int mi_height = num_8x8_blocks_high_lookup[bsize];
// buffer the above/left context information of the block in search.
for (p = 0; p < MAX_MB_PLANE; ++p) {
vpx_memcpy(
a + num_4x4_blocks_wide * p,
xd->above_context[p] + (mi_col * 2 >> xd->plane[p].subsampling_x),
(sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_wide) >>
xd->plane[p].subsampling_x);
vpx_memcpy(
l + num_4x4_blocks_high * p,
xd->left_context[p]
+ ((mi_row & MI_MASK) * 2 >> xd->plane[p].subsampling_y),
(sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_high) >>
xd->plane[p].subsampling_y);
}
vpx_memcpy(sa, xd->above_seg_context + mi_col,
sizeof(*xd->above_seg_context) * mi_width);
vpx_memcpy(sl, xd->left_seg_context + (mi_row & MI_MASK),
sizeof(xd->left_seg_context[0]) * mi_height);
}
static void encode_b(VP9_COMP *cpi, const TileInfo *const tile,
TOKENEXTRA **tp, int mi_row, int mi_col,
int output_enabled, BLOCK_SIZE bsize,
PICK_MODE_CONTEXT *ctx) {
set_offsets(cpi, tile, mi_row, mi_col, bsize);
update_state(cpi, ctx, mi_row, mi_col, bsize, output_enabled);
encode_superblock(cpi, tp, output_enabled, mi_row, mi_col, bsize, ctx);
if (output_enabled) {
update_stats(&cpi->common, &cpi->mb);
(*tp)->token = EOSB_TOKEN;
(*tp)++;
}
}
static void encode_sb(VP9_COMP *cpi, const TileInfo *const tile,
TOKENEXTRA **tp, int mi_row, int mi_col,
int output_enabled, BLOCK_SIZE bsize,
PC_TREE *pc_tree) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
const int bsl = b_width_log2(bsize), hbs = (1 << bsl) / 4;
int ctx;
PARTITION_TYPE partition;
BLOCK_SIZE subsize = bsize;
if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
return;
if (bsize >= BLOCK_8X8) {
ctx = partition_plane_context(xd, mi_row, mi_col, bsize);
subsize = get_subsize(bsize, pc_tree->partitioning);
} else {
ctx = 0;
subsize = BLOCK_4X4;
}
partition = partition_lookup[bsl][subsize];
if (output_enabled && bsize != BLOCK_4X4)
cm->counts.partition[ctx][partition]++;
switch (partition) {
case PARTITION_NONE:
encode_b(cpi, tile, tp, mi_row, mi_col, output_enabled, subsize,
&pc_tree->none);
break;
case PARTITION_VERT:
encode_b(cpi, tile, tp, mi_row, mi_col, output_enabled, subsize,
&pc_tree->vertical[0]);
if (mi_col + hbs < cm->mi_cols && bsize > BLOCK_8X8) {
encode_b(cpi, tile, tp, mi_row, mi_col + hbs, output_enabled, subsize,
&pc_tree->vertical[1]);
}
break;
case PARTITION_HORZ:
encode_b(cpi, tile, tp, mi_row, mi_col, output_enabled, subsize,
&pc_tree->horizontal[0]);
if (mi_row + hbs < cm->mi_rows && bsize > BLOCK_8X8) {
encode_b(cpi, tile, tp, mi_row + hbs, mi_col, output_enabled, subsize,
&pc_tree->horizontal[1]);
}
break;
case PARTITION_SPLIT:
if (bsize == BLOCK_8X8) {
encode_b(cpi, tile, tp, mi_row, mi_col, output_enabled, subsize,
pc_tree->leaf_split[0]);
} else {
encode_sb(cpi, tile, tp, mi_row, mi_col, output_enabled, subsize,
pc_tree->split[0]);
encode_sb(cpi, tile, tp, mi_row, mi_col + hbs, output_enabled, subsize,
pc_tree->split[1]);
encode_sb(cpi, tile, tp, mi_row + hbs, mi_col, output_enabled, subsize,
pc_tree->split[2]);
encode_sb(cpi, tile, tp, mi_row + hbs, mi_col + hbs, output_enabled,
subsize, pc_tree->split[3]);
}
break;
default:
assert("Invalid partition type.");
break;
}
if (partition != PARTITION_SPLIT || bsize == BLOCK_8X8)
update_partition_context(xd, mi_row, mi_col, subsize, bsize);
}
// Check to see if the given partition size is allowed for a specified number
// of 8x8 block rows and columns remaining in the image.
// If not then return the largest allowed partition size
static BLOCK_SIZE find_partition_size(BLOCK_SIZE bsize,
int rows_left, int cols_left,
int *bh, int *bw) {
if (rows_left <= 0 || cols_left <= 0) {
return MIN(bsize, BLOCK_8X8);
} else {
for (; bsize > 0; bsize -= 3) {
*bh = num_8x8_blocks_high_lookup[bsize];
*bw = num_8x8_blocks_wide_lookup[bsize];
if ((*bh <= rows_left) && (*bw <= cols_left)) {
break;
}
}
}
return bsize;
}
static void set_partial_b64x64_partition(MODE_INFO *mi, int mis,
int bh_in, int bw_in, int row8x8_remaining, int col8x8_remaining,
BLOCK_SIZE bsize, MODE_INFO **mi_8x8) {
int bh = bh_in;
int r, c;
for (r = 0; r < MI_BLOCK_SIZE; r += bh) {
int bw = bw_in;
for (c = 0; c < MI_BLOCK_SIZE; c += bw) {
const int index = r * mis + c;
mi_8x8[index] = mi + index;
mi_8x8[index]->mbmi.sb_type = find_partition_size(bsize,
row8x8_remaining - r, col8x8_remaining - c, &bh, &bw);
}
}
}
// This function attempts to set all mode info entries in a given SB64
// to the same block partition size.
// However, at the bottom and right borders of the image the requested size
// may not be allowed in which case this code attempts to choose the largest
// allowable partition.
static void set_fixed_partitioning(VP9_COMP *cpi, const TileInfo *const tile,
MODE_INFO **mi_8x8, int mi_row, int mi_col,
BLOCK_SIZE bsize) {
VP9_COMMON *const cm = &cpi->common;
const int mis = cm->mi_stride;
const int row8x8_remaining = tile->mi_row_end - mi_row;
const int col8x8_remaining = tile->mi_col_end - mi_col;
int block_row, block_col;
MODE_INFO *mi_upper_left = cm->mi + mi_row * mis + mi_col;
int bh = num_8x8_blocks_high_lookup[bsize];
int bw = num_8x8_blocks_wide_lookup[bsize];
assert((row8x8_remaining > 0) && (col8x8_remaining > 0));
// Apply the requested partition size to the SB64 if it is all "in image"
if ((col8x8_remaining >= MI_BLOCK_SIZE) &&
(row8x8_remaining >= MI_BLOCK_SIZE)) {
for (block_row = 0; block_row < MI_BLOCK_SIZE; block_row += bh) {
for (block_col = 0; block_col < MI_BLOCK_SIZE; block_col += bw) {
int index = block_row * mis + block_col;
mi_8x8[index] = mi_upper_left + index;
mi_8x8[index]->mbmi.sb_type = bsize;
}
}
} else {
// Else this is a partial SB64.
set_partial_b64x64_partition(mi_upper_left, mis, bh, bw, row8x8_remaining,
col8x8_remaining, bsize, mi_8x8);
}
}
static void copy_partitioning(VP9_COMMON *cm, MODE_INFO **mi_8x8,
MODE_INFO **prev_mi_8x8) {
const int mis = cm->mi_stride;
int block_row, block_col;
for (block_row = 0; block_row < 8; ++block_row) {
for (block_col = 0; block_col < 8; ++block_col) {
MODE_INFO *const prev_mi = prev_mi_8x8[block_row * mis + block_col];
const BLOCK_SIZE sb_type = prev_mi ? prev_mi->mbmi.sb_type : 0;
if (prev_mi) {
const ptrdiff_t offset = prev_mi - cm->prev_mi;
mi_8x8[block_row * mis + block_col] = cm->mi + offset;
mi_8x8[block_row * mis + block_col]->mbmi.sb_type = sb_type;
}
}
}
}
static void constrain_copy_partitioning(VP9_COMP *const cpi,
const TileInfo *const tile,
MODE_INFO **mi_8x8,
MODE_INFO **prev_mi_8x8,
int mi_row, int mi_col,
BLOCK_SIZE bsize) {
VP9_COMMON *const cm = &cpi->common;
const int mis = cm->mi_stride;
const int row8x8_remaining = tile->mi_row_end - mi_row;
const int col8x8_remaining = tile->mi_col_end - mi_col;
MODE_INFO *const mi_upper_left = cm->mi + mi_row * mis + mi_col;
const int bh = num_8x8_blocks_high_lookup[bsize];
const int bw = num_8x8_blocks_wide_lookup[bsize];
int block_row, block_col;
assert((row8x8_remaining > 0) && (col8x8_remaining > 0));
// If the SB64 if it is all "in image".
if ((col8x8_remaining >= MI_BLOCK_SIZE) &&
(row8x8_remaining >= MI_BLOCK_SIZE)) {
for (block_row = 0; block_row < MI_BLOCK_SIZE; block_row += bh) {
for (block_col = 0; block_col < MI_BLOCK_SIZE; block_col += bw) {
const int index = block_row * mis + block_col;
MODE_INFO *prev_mi = prev_mi_8x8[index];
const BLOCK_SIZE sb_type = prev_mi ? prev_mi->mbmi.sb_type : 0;
// Use previous partition if block size is not larger than bsize.
if (prev_mi && sb_type <= bsize) {
int block_row2, block_col2;
for (block_row2 = 0; block_row2 < bh; ++block_row2) {
for (block_col2 = 0; block_col2 < bw; ++block_col2) {
const int index2 = (block_row + block_row2) * mis +
block_col + block_col2;
prev_mi = prev_mi_8x8[index2];
if (prev_mi) {
const ptrdiff_t offset = prev_mi - cm->prev_mi;
mi_8x8[index2] = cm->mi + offset;
mi_8x8[index2]->mbmi.sb_type = prev_mi->mbmi.sb_type;
}
}
}
} else {
// Otherwise, use fixed partition of size bsize.
mi_8x8[index] = mi_upper_left + index;
mi_8x8[index]->mbmi.sb_type = bsize;
}
}
}
} else {
// Else this is a partial SB64, copy previous partition.
copy_partitioning(cm, mi_8x8, prev_mi_8x8);
}
}
const struct {
int row;
int col;
} coord_lookup[16] = {
// 32x32 index = 0
{0, 0}, {0, 2}, {2, 0}, {2, 2},
// 32x32 index = 1
{0, 4}, {0, 6}, {2, 4}, {2, 6},
// 32x32 index = 2
{4, 0}, {4, 2}, {6, 0}, {6, 2},
// 32x32 index = 3
{4, 4}, {4, 6}, {6, 4}, {6, 6},
};
static void set_source_var_based_partition(VP9_COMP *cpi,
const TileInfo *const tile,
MODE_INFO **mi_8x8,
int mi_row, int mi_col) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
const int mis = cm->mi_stride;
const int row8x8_remaining = tile->mi_row_end - mi_row;
const int col8x8_remaining = tile->mi_col_end - mi_col;
MODE_INFO *mi_upper_left = cm->mi + mi_row * mis + mi_col;
vp9_setup_src_planes(x, cpi->Source, mi_row, mi_col);
assert((row8x8_remaining > 0) && (col8x8_remaining > 0));
// In-image SB64
if ((col8x8_remaining >= MI_BLOCK_SIZE) &&
(row8x8_remaining >= MI_BLOCK_SIZE)) {
int i, j;
int index;
diff d32[4];
const int offset = (mi_row >> 1) * cm->mb_cols + (mi_col >> 1);
int is_larger_better = 0;
int use32x32 = 0;
unsigned int thr = cpi->source_var_thresh;
vpx_memset(d32, 0, 4 * sizeof(diff));
for (i = 0; i < 4; i++) {
diff *d16[4];
for (j = 0; j < 4; j++) {
int b_mi_row = coord_lookup[i * 4 + j].row;
int b_mi_col = coord_lookup[i * 4 + j].col;
int boffset = b_mi_row / 2 * cm->mb_cols +
b_mi_col / 2;
d16[j] = cpi->source_diff_var + offset + boffset;
index = b_mi_row * mis + b_mi_col;
mi_8x8[index] = mi_upper_left + index;
mi_8x8[index]->mbmi.sb_type = BLOCK_16X16;
// TODO(yunqingwang): If d16[j].var is very large, use 8x8 partition
// size to further improve quality.
}
is_larger_better = (d16[0]->var < thr) && (d16[1]->var < thr) &&
(d16[2]->var < thr) && (d16[3]->var < thr);
// Use 32x32 partition
if (is_larger_better) {
use32x32 += 1;
for (j = 0; j < 4; j++) {
d32[i].sse += d16[j]->sse;
d32[i].sum += d16[j]->sum;
}
d32[i].var = d32[i].sse - (((int64_t)d32[i].sum * d32[i].sum) >> 10);
index = coord_lookup[i*4].row * mis + coord_lookup[i*4].col;
mi_8x8[index] = mi_upper_left + index;
mi_8x8[index]->mbmi.sb_type = BLOCK_32X32;
}
}
if (use32x32 == 4) {
thr <<= 1;
is_larger_better = (d32[0].var < thr) && (d32[1].var < thr) &&
(d32[2].var < thr) && (d32[3].var < thr);
// Use 64x64 partition
if (is_larger_better) {
mi_8x8[0] = mi_upper_left;
mi_8x8[0]->mbmi.sb_type = BLOCK_64X64;
}
}
} else { // partial in-image SB64
int bh = num_8x8_blocks_high_lookup[BLOCK_16X16];
int bw = num_8x8_blocks_wide_lookup[BLOCK_16X16];
set_partial_b64x64_partition(mi_upper_left, mis, bh, bw,
row8x8_remaining, col8x8_remaining, BLOCK_16X16, mi_8x8);
}
}
static int is_background(const VP9_COMP *cpi, const TileInfo *const tile,
int mi_row, int mi_col) {
// This assumes the input source frames are of the same dimension.
const int row8x8_remaining = tile->mi_row_end - mi_row;
const int col8x8_remaining = tile->mi_col_end - mi_col;
const int x = mi_col * MI_SIZE;
const int y = mi_row * MI_SIZE;
const int src_stride = cpi->Source->y_stride;
const uint8_t *const src = &cpi->Source->y_buffer[y * src_stride + x];
const int pre_stride = cpi->Last_Source->y_stride;
const uint8_t *const pre = &cpi->Last_Source->y_buffer[y * pre_stride + x];
int this_sad = 0;
int threshold = 0;
if (row8x8_remaining >= MI_BLOCK_SIZE &&
col8x8_remaining >= MI_BLOCK_SIZE) {
this_sad = cpi->fn_ptr[BLOCK_64X64].sdf(src, src_stride, pre, pre_stride);
threshold = (1 << 12);
} else {
int r, c;
for (r = 0; r < row8x8_remaining; r += 2)
for (c = 0; c < col8x8_remaining; c += 2)
this_sad += cpi->fn_ptr[BLOCK_16X16].sdf(src, src_stride,
pre, pre_stride);
threshold = (row8x8_remaining * col8x8_remaining) << 6;
}
return this_sad < 2 * threshold;
}
static int sb_has_motion(const VP9_COMMON *cm, MODE_INFO **prev_mi_8x8,
const int motion_thresh) {
const int mis = cm->mi_stride;
int block_row, block_col;
if (cm->prev_mi) {
for (block_row = 0; block_row < 8; ++block_row) {
for (block_col = 0; block_col < 8; ++block_col) {
const MODE_INFO *prev_mi = prev_mi_8x8[block_row * mis + block_col];
if (prev_mi) {
if (abs(prev_mi->mbmi.mv[0].as_mv.row) > motion_thresh ||
abs(prev_mi->mbmi.mv[0].as_mv.col) > motion_thresh)
return 1;
}
}
}
}
return 0;
}
static void update_state_rt(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
int mi_row, int mi_col, int bsize) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
const struct segmentation *const seg = &cm->seg;
*(xd->mi[0]) = ctx->mic;
// For in frame adaptive Q, check for reseting the segment_id and updating
// the cyclic refresh map.
if ((cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) && seg->enabled) {
vp9_cyclic_refresh_update_segment(cpi, &xd->mi[0]->mbmi,
mi_row, mi_col, bsize, 1);
vp9_init_plane_quantizers(cpi, x);
}
if (is_inter_block(mbmi)) {
vp9_update_mv_count(cm, xd);
if (cm->interp_filter == SWITCHABLE) {
const int pred_ctx = vp9_get_pred_context_switchable_interp(xd);
++cm->counts.switchable_interp[pred_ctx][mbmi->interp_filter];
}
}
x->skip = ctx->skip;
x->skip_txfm[0] = mbmi->segment_id ? 0 : ctx->skip_txfm[0];
}
static void encode_b_rt(VP9_COMP *cpi, const TileInfo *const tile,
TOKENEXTRA **tp, int mi_row, int mi_col,
int output_enabled, BLOCK_SIZE bsize,
PICK_MODE_CONTEXT *ctx) {
set_offsets(cpi, tile, mi_row, mi_col, bsize);
update_state_rt(cpi, ctx, mi_row, mi_col, bsize);
#if CONFIG_VP9_TEMPORAL_DENOISING
if (cpi->oxcf.noise_sensitivity > 0 && output_enabled) {
vp9_denoiser_denoise(&cpi->denoiser, &cpi->mb, mi_row, mi_col,
MAX(BLOCK_8X8, bsize), ctx);
}
#endif
encode_superblock(cpi, tp, output_enabled, mi_row, mi_col, bsize, ctx);
update_stats(&cpi->common, &cpi->mb);
(*tp)->token = EOSB_TOKEN;
(*tp)++;
}
static void encode_sb_rt(VP9_COMP *cpi, const TileInfo *const tile,
TOKENEXTRA **tp, int mi_row, int mi_col,
int output_enabled, BLOCK_SIZE bsize,
PC_TREE *pc_tree) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
const int bsl = b_width_log2(bsize), hbs = (1 << bsl) / 4;
int ctx;
PARTITION_TYPE partition;
BLOCK_SIZE subsize;
if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
return;
if (bsize >= BLOCK_8X8) {
const int idx_str = xd->mi_stride * mi_row + mi_col;
MODE_INFO ** mi_8x8 = cm->mi_grid_visible + idx_str;
ctx = partition_plane_context(xd, mi_row, mi_col, bsize);
subsize = mi_8x8[0]->mbmi.sb_type;
} else {
ctx = 0;
subsize = BLOCK_4X4;
}
partition = partition_lookup[bsl][subsize];
if (output_enabled && bsize != BLOCK_4X4)
cm->counts.partition[ctx][partition]++;
switch (partition) {
case PARTITION_NONE:
encode_b_rt(cpi, tile, tp, mi_row, mi_col, output_enabled, subsize,
&pc_tree->none);
break;
case PARTITION_VERT:
encode_b_rt(cpi, tile, tp, mi_row, mi_col, output_enabled, subsize,
&pc_tree->vertical[0]);
if (mi_col + hbs < cm->mi_cols && bsize > BLOCK_8X8) {
encode_b_rt(cpi, tile, tp, mi_row, mi_col + hbs, output_enabled,
subsize, &pc_tree->vertical[1]);
}
break;
case PARTITION_HORZ:
encode_b_rt(cpi, tile, tp, mi_row, mi_col, output_enabled, subsize,
&pc_tree->horizontal[0]);
if (mi_row + hbs < cm->mi_rows && bsize > BLOCK_8X8) {
encode_b_rt(cpi, tile, tp, mi_row + hbs, mi_col, output_enabled,
subsize, &pc_tree->horizontal[1]);
}
break;
case PARTITION_SPLIT:
subsize = get_subsize(bsize, PARTITION_SPLIT);
encode_sb_rt(cpi, tile, tp, mi_row, mi_col, output_enabled, subsize,
pc_tree->split[0]);
encode_sb_rt(cpi, tile, tp, mi_row, mi_col + hbs, output_enabled,
subsize, pc_tree->split[1]);
encode_sb_rt(cpi, tile, tp, mi_row + hbs, mi_col, output_enabled,
subsize, pc_tree->split[2]);
encode_sb_rt(cpi, tile, tp, mi_row + hbs, mi_col + hbs, output_enabled,
subsize, pc_tree->split[3]);
break;
default:
assert("Invalid partition type.");
break;
}
if (partition != PARTITION_SPLIT || bsize == BLOCK_8X8)
update_partition_context(xd, mi_row, mi_col, subsize, bsize);
}
static void rd_use_partition(VP9_COMP *cpi,
const TileInfo *const tile,
MODE_INFO **mi_8x8,
TOKENEXTRA **tp, int mi_row, int mi_col,
BLOCK_SIZE bsize, int *rate, int64_t *dist,
int do_recon, PC_TREE *pc_tree) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
const int mis = cm->mi_stride;
const int bsl = b_width_log2(bsize);
const int mi_step = num_4x4_blocks_wide_lookup[bsize] / 2;
const int bss = (1 << bsl) / 4;
int i, pl;
PARTITION_TYPE partition = PARTITION_NONE;
BLOCK_SIZE subsize;
ENTROPY_CONTEXT l[16 * MAX_MB_PLANE], a[16 * MAX_MB_PLANE];
PARTITION_CONTEXT sl[8], sa[8];
int last_part_rate = INT_MAX;
int64_t last_part_dist = INT64_MAX;
int64_t last_part_rd = INT64_MAX;
int none_rate = INT_MAX;
int64_t none_dist = INT64_MAX;
int64_t none_rd = INT64_MAX;
int chosen_rate = INT_MAX;
int64_t chosen_dist = INT64_MAX;
int64_t chosen_rd = INT64_MAX;
BLOCK_SIZE sub_subsize = BLOCK_4X4;
int splits_below = 0;
BLOCK_SIZE bs_type = mi_8x8[0]->mbmi.sb_type;
int do_partition_search = 1;
PICK_MODE_CONTEXT *ctx = &pc_tree->none;
if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
return;
assert(num_4x4_blocks_wide_lookup[bsize] ==
num_4x4_blocks_high_lookup[bsize]);
partition = partition_lookup[bsl][bs_type];
subsize = get_subsize(bsize, partition);
pc_tree->partitioning = partition;
save_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
if (bsize == BLOCK_16X16 && cpi->oxcf.aq_mode) {
set_offsets(cpi, tile, mi_row, mi_col, bsize);
x->mb_energy = vp9_block_energy(cpi, x, bsize);
}
if (do_partition_search &&
cpi->sf.partition_search_type == SEARCH_PARTITION &&
cpi->sf.adjust_partitioning_from_last_frame) {
// Check if any of the sub blocks are further split.
if (partition == PARTITION_SPLIT && subsize > BLOCK_8X8) {
sub_subsize = get_subsize(subsize, PARTITION_SPLIT);
splits_below = 1;
for (i = 0; i < 4; i++) {
int jj = i >> 1, ii = i & 0x01;
MODE_INFO * this_mi = mi_8x8[jj * bss * mis + ii * bss];
if (this_mi && this_mi->mbmi.sb_type >= sub_subsize) {
splits_below = 0;
}
}
}
// If partition is not none try none unless each of the 4 splits are split
// even further..
if (partition != PARTITION_NONE && !splits_below &&
mi_row + (mi_step >> 1) < cm->mi_rows &&
mi_col + (mi_step >> 1) < cm->mi_cols) {
pc_tree->partitioning = PARTITION_NONE;
rd_pick_sb_modes(cpi, tile, mi_row, mi_col, &none_rate, &none_dist, bsize,
ctx, INT64_MAX, 0);
pl = partition_plane_context(xd, mi_row, mi_col, bsize);
if (none_rate < INT_MAX) {
none_rate += cpi->partition_cost[pl][PARTITION_NONE];
none_rd = RDCOST(x->rdmult, x->rddiv, none_rate, none_dist);
}
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
mi_8x8[0]->mbmi.sb_type = bs_type;
pc_tree->partitioning = partition;
}
}
switch (partition) {
case PARTITION_NONE:
rd_pick_sb_modes(cpi, tile, mi_row, mi_col, &last_part_rate,
&last_part_dist, bsize, ctx, INT64_MAX, 0);
break;
case PARTITION_HORZ:
rd_pick_sb_modes(cpi, tile, mi_row, mi_col, &last_part_rate,
&last_part_dist, subsize, &pc_tree->horizontal[0],
INT64_MAX, 0);
if (last_part_rate != INT_MAX &&
bsize >= BLOCK_8X8 && mi_row + (mi_step >> 1) < cm->mi_rows) {
int rt = 0;
int64_t dt = 0;
PICK_MODE_CONTEXT *ctx = &pc_tree->horizontal[0];
update_state(cpi, ctx, mi_row, mi_col, subsize, 0);
encode_superblock(cpi, tp, 0, mi_row, mi_col, subsize, ctx);
rd_pick_sb_modes(cpi, tile, mi_row + (mi_step >> 1), mi_col, &rt, &dt,
subsize, &pc_tree->horizontal[1], INT64_MAX, 1);
if (rt == INT_MAX || dt == INT64_MAX) {
last_part_rate = INT_MAX;
last_part_dist = INT64_MAX;
break;
}
last_part_rate += rt;
last_part_dist += dt;
}
break;
case PARTITION_VERT:
rd_pick_sb_modes(cpi, tile, mi_row, mi_col, &last_part_rate,
&last_part_dist, subsize, &pc_tree->vertical[0],
INT64_MAX, 0);
if (last_part_rate != INT_MAX &&
bsize >= BLOCK_8X8 && mi_col + (mi_step >> 1) < cm->mi_cols) {
int rt = 0;
int64_t dt = 0;
PICK_MODE_CONTEXT *ctx = &pc_tree->vertical[0];
update_state(cpi, ctx, mi_row, mi_col, subsize, 0);
encode_superblock(cpi, tp, 0, mi_row, mi_col, subsize, ctx);
rd_pick_sb_modes(cpi, tile, mi_row, mi_col + (mi_step >> 1), &rt, &dt,
subsize, &pc_tree->vertical[bsize > BLOCK_8X8],
INT64_MAX, 1);
if (rt == INT_MAX || dt == INT64_MAX) {
last_part_rate = INT_MAX;
last_part_dist = INT64_MAX;
break;
}
last_part_rate += rt;
last_part_dist += dt;
}
break;
case PARTITION_SPLIT:
if (bsize == BLOCK_8X8) {
rd_pick_sb_modes(cpi, tile, mi_row, mi_col, &last_part_rate,
&last_part_dist, subsize, pc_tree->leaf_split[0],
INT64_MAX, 0);
break;
}
last_part_rate = 0;
last_part_dist = 0;
for (i = 0; i < 4; i++) {
int x_idx = (i & 1) * (mi_step >> 1);
int y_idx = (i >> 1) * (mi_step >> 1);
int jj = i >> 1, ii = i & 0x01;
int rt;
int64_t dt;
if ((mi_row + y_idx >= cm->mi_rows) || (mi_col + x_idx >= cm->mi_cols))
continue;
rd_use_partition(cpi, tile, mi_8x8 + jj * bss * mis + ii * bss, tp,
mi_row + y_idx, mi_col + x_idx, subsize, &rt, &dt,
i != 3, pc_tree->split[i]);
if (rt == INT_MAX || dt == INT64_MAX) {
last_part_rate = INT_MAX;
last_part_dist = INT64_MAX;
break;
}
last_part_rate += rt;
last_part_dist += dt;
}
break;
default:
assert(0);
break;
}
pl = partition_plane_context(xd, mi_row, mi_col, bsize);
if (last_part_rate < INT_MAX) {
last_part_rate += cpi->partition_cost[pl][partition];
last_part_rd = RDCOST(x->rdmult, x->rddiv, last_part_rate, last_part_dist);
}
if (do_partition_search
&& cpi->sf.adjust_partitioning_from_last_frame
&& cpi->sf.partition_search_type == SEARCH_PARTITION
&& partition != PARTITION_SPLIT && bsize > BLOCK_8X8
&& (mi_row + mi_step < cm->mi_rows ||
mi_row + (mi_step >> 1) == cm->mi_rows)
&& (mi_col + mi_step < cm->mi_cols ||
mi_col + (mi_step >> 1) == cm->mi_cols)) {
BLOCK_SIZE split_subsize = get_subsize(bsize, PARTITION_SPLIT);
chosen_rate = 0;
chosen_dist = 0;
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
pc_tree->partitioning = PARTITION_SPLIT;
// Split partition.
for (i = 0; i < 4; i++) {
int x_idx = (i & 1) * (mi_step >> 1);
int y_idx = (i >> 1) * (mi_step >> 1);
int rt = 0;
int64_t dt = 0;
ENTROPY_CONTEXT l[16 * MAX_MB_PLANE], a[16 * MAX_MB_PLANE];
PARTITION_CONTEXT sl[8], sa[8];
if ((mi_row + y_idx >= cm->mi_rows) || (mi_col + x_idx >= cm->mi_cols))
continue;
save_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
pc_tree->split[i]->partitioning = PARTITION_NONE;
rd_pick_sb_modes(cpi, tile, mi_row + y_idx, mi_col + x_idx, &rt, &dt,
split_subsize, &pc_tree->split[i]->none,
INT64_MAX, i);
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
if (rt == INT_MAX || dt == INT64_MAX) {
chosen_rate = INT_MAX;
chosen_dist = INT64_MAX;
break;
}
chosen_rate += rt;
chosen_dist += dt;
if (i != 3)
encode_sb(cpi, tile, tp, mi_row + y_idx, mi_col + x_idx, 0,
split_subsize, pc_tree->split[i]);
pl = partition_plane_context(xd, mi_row + y_idx, mi_col + x_idx,
split_subsize);
chosen_rate += cpi->partition_cost[pl][PARTITION_NONE];
}
pl = partition_plane_context(xd, mi_row, mi_col, bsize);
if (chosen_rate < INT_MAX) {
chosen_rate += cpi->partition_cost[pl][PARTITION_SPLIT];
chosen_rd = RDCOST(x->rdmult, x->rddiv, chosen_rate, chosen_dist);
}
}
// If last_part is better set the partitioning to that.
if (last_part_rd < chosen_rd) {
mi_8x8[0]->mbmi.sb_type = bsize;
if (bsize >= BLOCK_8X8)
pc_tree->partitioning = partition;
chosen_rate = last_part_rate;
chosen_dist = last_part_dist;
chosen_rd = last_part_rd;
}
// If none was better set the partitioning to that.
if (none_rd < chosen_rd) {
if (bsize >= BLOCK_8X8)
pc_tree->partitioning = PARTITION_NONE;
chosen_rate = none_rate;
chosen_dist = none_dist;
}
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
// We must have chosen a partitioning and encoding or we'll fail later on.
// No other opportunities for success.
if ( bsize == BLOCK_64X64)
assert(chosen_rate < INT_MAX && chosen_dist < INT64_MAX);
if (do_recon) {
int output_enabled = (bsize == BLOCK_64X64);
// Check the projected output rate for this SB against it's target
// and and if necessary apply a Q delta using segmentation to get
// closer to the target.
if ((cpi->oxcf.aq_mode == COMPLEXITY_AQ) && cm->seg.update_map) {
vp9_select_in_frame_q_segment(cpi, mi_row, mi_col,
output_enabled, chosen_rate);
}
if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ)
vp9_cyclic_refresh_set_rate_and_dist_sb(cpi->cyclic_refresh,
chosen_rate, chosen_dist);
encode_sb(cpi, tile, tp, mi_row, mi_col, output_enabled, bsize,
pc_tree);
}
*rate = chosen_rate;
*dist = chosen_dist;
}
static const BLOCK_SIZE min_partition_size[BLOCK_SIZES] = {
BLOCK_4X4, BLOCK_4X4, BLOCK_4X4,
BLOCK_4X4, BLOCK_4X4, BLOCK_4X4,
BLOCK_8X8, BLOCK_8X8, BLOCK_8X8,
BLOCK_16X16, BLOCK_16X16, BLOCK_16X16,
BLOCK_16X16
};
static const BLOCK_SIZE max_partition_size[BLOCK_SIZES] = {
BLOCK_8X8, BLOCK_16X16, BLOCK_16X16,
BLOCK_16X16, BLOCK_32X32, BLOCK_32X32,
BLOCK_32X32, BLOCK_64X64, BLOCK_64X64,
BLOCK_64X64, BLOCK_64X64, BLOCK_64X64,
BLOCK_64X64
};
// Look at all the mode_info entries for blocks that are part of this
// partition and find the min and max values for sb_type.
// At the moment this is designed to work on a 64x64 SB but could be
// adjusted to use a size parameter.
//
// The min and max are assumed to have been initialized prior to calling this
// function so repeat calls can accumulate a min and max of more than one sb64.
static void get_sb_partition_size_range(MACROBLOCKD *xd, MODE_INFO **mi_8x8,
BLOCK_SIZE *min_block_size,
BLOCK_SIZE *max_block_size,
int bs_hist[BLOCK_SIZES]) {
int sb_width_in_blocks = MI_BLOCK_SIZE;
int sb_height_in_blocks = MI_BLOCK_SIZE;
int i, j;
int index = 0;
// Check the sb_type for each block that belongs to this region.
for (i = 0; i < sb_height_in_blocks; ++i) {
for (j = 0; j < sb_width_in_blocks; ++j) {
MODE_INFO * mi = mi_8x8[index+j];
BLOCK_SIZE sb_type = mi ? mi->mbmi.sb_type : 0;
bs_hist[sb_type]++;
*min_block_size = MIN(*min_block_size, sb_type);
*max_block_size = MAX(*max_block_size, sb_type);
}
index += xd->mi_stride;
}
}
// Next square block size less or equal than current block size.
static const BLOCK_SIZE next_square_size[BLOCK_SIZES] = {
BLOCK_4X4, BLOCK_4X4, BLOCK_4X4,
BLOCK_8X8, BLOCK_8X8, BLOCK_8X8,
BLOCK_16X16, BLOCK_16X16, BLOCK_16X16,
BLOCK_32X32, BLOCK_32X32, BLOCK_32X32,
BLOCK_64X64
};
// Look at neighboring blocks and set a min and max partition size based on
// what they chose.
static void rd_auto_partition_range(VP9_COMP *cpi, const TileInfo *const tile,
int mi_row, int mi_col,
BLOCK_SIZE *min_block_size,
BLOCK_SIZE *max_block_size) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &cpi->mb.e_mbd;
MODE_INFO **mi = xd->mi;
const int left_in_image = xd->left_available && mi[-1];
const int above_in_image = xd->up_available && mi[-xd->mi_stride];
const int row8x8_remaining = tile->mi_row_end - mi_row;
const int col8x8_remaining = tile->mi_col_end - mi_col;
int bh, bw;
BLOCK_SIZE min_size = BLOCK_4X4;
BLOCK_SIZE max_size = BLOCK_64X64;
int i = 0;
int bs_hist[BLOCK_SIZES] = {0};
// Trap case where we do not have a prediction.
if (left_in_image || above_in_image || cm->frame_type != KEY_FRAME) {
// Default "min to max" and "max to min"
min_size = BLOCK_64X64;
max_size = BLOCK_4X4;
// NOTE: each call to get_sb_partition_size_range() uses the previous
// passed in values for min and max as a starting point.
// Find the min and max partition used in previous frame at this location
if (cm->frame_type != KEY_FRAME) {
MODE_INFO **const prev_mi =
&cm->prev_mi_grid_visible[mi_row * xd->mi_stride + mi_col];
get_sb_partition_size_range(xd, prev_mi, &min_size, &max_size, bs_hist);
}
// Find the min and max partition sizes used in the left SB64
if (left_in_image) {
MODE_INFO **left_sb64_mi = &mi[-MI_BLOCK_SIZE];
get_sb_partition_size_range(xd, left_sb64_mi, &min_size, &max_size,
bs_hist);
}
// Find the min and max partition sizes used in the above SB64.
if (above_in_image) {
MODE_INFO **above_sb64_mi = &mi[-xd->mi_stride * MI_BLOCK_SIZE];
get_sb_partition_size_range(xd, above_sb64_mi, &min_size, &max_size,
bs_hist);
}
// adjust observed min and max
if (cpi->sf.auto_min_max_partition_size == RELAXED_NEIGHBORING_MIN_MAX) {
min_size = min_partition_size[min_size];
max_size = max_partition_size[max_size];
} else if (cpi->sf.auto_min_max_partition_size ==
CONSTRAIN_NEIGHBORING_MIN_MAX) {
// adjust the search range based on the histogram of the observed
// partition sizes from left, above the previous co-located blocks
int sum = 0;
int first_moment = 0;
int second_moment = 0;
int var_unnormalized = 0;
for (i = 0; i < BLOCK_SIZES; i++) {
sum += bs_hist[i];
first_moment += bs_hist[i] * i;
second_moment += bs_hist[i] * i * i;
}
// if variance is small enough,
// adjust the range around its mean size, which gives a tighter range
var_unnormalized = second_moment - first_moment * first_moment / sum;
if (var_unnormalized <= 4 * sum) {
int mean = first_moment / sum;
min_size = min_partition_size[mean];
max_size = max_partition_size[mean];
} else {
min_size = min_partition_size[min_size];
max_size = max_partition_size[max_size];
}
}
}
// Check border cases where max and min from neighbors may not be legal.
max_size = find_partition_size(max_size,
row8x8_remaining, col8x8_remaining,
&bh, &bw);
min_size = MIN(min_size, max_size);
// When use_square_partition_only is true, make sure at least one square
// partition is allowed by selecting the next smaller square size as
// *min_block_size.
if (cpi->sf.use_square_partition_only &&
next_square_size[max_size] < min_size) {
min_size = next_square_size[max_size];
}
*min_block_size = min_size;
*max_block_size = max_size;
}
static void auto_partition_range(VP9_COMP *cpi, const TileInfo *const tile,
int mi_row, int mi_col,
BLOCK_SIZE *min_block_size,
BLOCK_SIZE *max_block_size) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &cpi->mb.e_mbd;
MODE_INFO **mi_8x8 = xd->mi;
const int left_in_image = xd->left_available && mi_8x8[-1];
const int above_in_image = xd->up_available &&
mi_8x8[-xd->mi_stride];
int row8x8_remaining = tile->mi_row_end - mi_row;
int col8x8_remaining = tile->mi_col_end - mi_col;
int bh, bw;
BLOCK_SIZE min_size = BLOCK_32X32;
BLOCK_SIZE max_size = BLOCK_8X8;
int bsl = mi_width_log2(BLOCK_64X64);
const int search_range_ctrl = (((mi_row + mi_col) >> bsl) +
get_chessboard_index(cm->current_video_frame)) & 0x1;
// Trap case where we do not have a prediction.
if (search_range_ctrl &&
(left_in_image || above_in_image || cm->frame_type != KEY_FRAME)) {
int block;
MODE_INFO **mi;
BLOCK_SIZE sb_type;
// Find the min and max partition sizes used in the left SB64.
if (left_in_image) {
MODE_INFO *cur_mi;
mi = &mi_8x8[-1];
for (block = 0; block < MI_BLOCK_SIZE; ++block) {
cur_mi = mi[block * xd->mi_stride];
sb_type = cur_mi ? cur_mi->mbmi.sb_type : 0;
min_size = MIN(min_size, sb_type);
max_size = MAX(max_size, sb_type);
}
}
// Find the min and max partition sizes used in the above SB64.
if (above_in_image) {
mi = &mi_8x8[-xd->mi_stride * MI_BLOCK_SIZE];
for (block = 0; block < MI_BLOCK_SIZE; ++block) {
sb_type = mi[block] ? mi[block]->mbmi.sb_type : 0;
min_size = MIN(min_size, sb_type);
max_size = MAX(max_size, sb_type);
}
}
min_size = min_partition_size[min_size];
max_size = find_partition_size(max_size, row8x8_remaining, col8x8_remaining,
&bh, &bw);
min_size = MIN(min_size, max_size);
min_size = MAX(min_size, BLOCK_8X8);
max_size = MIN(max_size, BLOCK_32X32);
} else {
min_size = BLOCK_8X8;
max_size = BLOCK_32X32;
}
*min_block_size = min_size;
*max_block_size = max_size;
}
// TODO(jingning) refactor functions setting partition search range
static void set_partition_range(VP9_COMMON *cm, MACROBLOCKD *xd,
int mi_row, int mi_col, BLOCK_SIZE bsize,
BLOCK_SIZE *min_bs, BLOCK_SIZE *max_bs) {
int mi_width = num_8x8_blocks_wide_lookup[bsize];
int mi_height = num_8x8_blocks_high_lookup[bsize];
int idx, idy;
MODE_INFO *mi;
MODE_INFO **prev_mi =
&cm->prev_mi_grid_visible[mi_row * cm->mi_stride + mi_col];
BLOCK_SIZE bs, min_size, max_size;
min_size = BLOCK_64X64;
max_size = BLOCK_4X4;
if (prev_mi) {
for (idy = 0; idy < mi_height; ++idy) {
for (idx = 0; idx < mi_width; ++idx) {
mi = prev_mi[idy * cm->mi_stride + idx];
bs = mi ? mi->mbmi.sb_type : bsize;
min_size = MIN(min_size, bs);
max_size = MAX(max_size, bs);
}
}
}
if (xd->left_available) {
for (idy = 0; idy < mi_height; ++idy) {
mi = xd->mi[idy * cm->mi_stride - 1];
bs = mi ? mi->mbmi.sb_type : bsize;
min_size = MIN(min_size, bs);
max_size = MAX(max_size, bs);
}
}
if (xd->up_available) {
for (idx = 0; idx < mi_width; ++idx) {
mi = xd->mi[idx - cm->mi_stride];
bs = mi ? mi->mbmi.sb_type : bsize;
min_size = MIN(min_size, bs);
max_size = MAX(max_size, bs);
}
}
if (min_size == max_size) {
min_size = min_partition_size[min_size];
max_size = max_partition_size[max_size];
}
*min_bs = min_size;
*max_bs = max_size;
}
static INLINE void store_pred_mv(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx) {
vpx_memcpy(ctx->pred_mv, x->pred_mv, sizeof(x->pred_mv));
}
static INLINE void load_pred_mv(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx) {
vpx_memcpy(x->pred_mv, ctx->pred_mv, sizeof(x->pred_mv));
}
#if CONFIG_FP_MB_STATS
const int num_16x16_blocks_wide_lookup[BLOCK_SIZES] =
{1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 4, 4};
const int num_16x16_blocks_high_lookup[BLOCK_SIZES] =
{1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 4, 2, 4};
const int qindex_skip_threshold_lookup[BLOCK_SIZES] =
{0, 10, 10, 30, 40, 40, 60, 80, 80, 90, 100, 100, 120};
const int qindex_split_threshold_lookup[BLOCK_SIZES] =
{0, 3, 3, 7, 15, 15, 30, 40, 40, 60, 80, 80, 120};
const int complexity_16x16_blocks_threshold[BLOCK_SIZES] =
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 4, 6};
typedef enum {
MV_ZERO = 0,
MV_LEFT = 1,
MV_UP = 2,
MV_RIGHT = 3,
MV_DOWN = 4,
MV_INVALID
} MOTION_DIRECTION;
static INLINE MOTION_DIRECTION get_motion_direction_fp(uint8_t fp_byte) {
if (fp_byte & FPMB_MOTION_ZERO_MASK) {
return MV_ZERO;
} else if (fp_byte & FPMB_MOTION_LEFT_MASK) {
return MV_LEFT;
} else if (fp_byte & FPMB_MOTION_RIGHT_MASK) {
return MV_RIGHT;
} else if (fp_byte & FPMB_MOTION_UP_MASK) {
return MV_UP;
} else {
return MV_DOWN;
}
}
static INLINE int get_motion_inconsistency(MOTION_DIRECTION this_mv,
MOTION_DIRECTION that_mv) {
if (this_mv == that_mv) {
return 0;
} else {
return abs(this_mv - that_mv) == 2 ? 2 : 1;
}
}
#endif
// TODO(jingning,jimbankoski,rbultje): properly skip partition types that are
// unlikely to be selected depending on previous rate-distortion optimization
// results, for encoding speed-up.
static void rd_pick_partition(VP9_COMP *cpi, const TileInfo *const tile,
TOKENEXTRA **tp, int mi_row,
int mi_col, BLOCK_SIZE bsize, int *rate,
int64_t *dist, int64_t best_rd,
PC_TREE *pc_tree) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
const int mi_step = num_8x8_blocks_wide_lookup[bsize] / 2;
ENTROPY_CONTEXT l[16 * MAX_MB_PLANE], a[16 * MAX_MB_PLANE];
PARTITION_CONTEXT sl[8], sa[8];
TOKENEXTRA *tp_orig = *tp;
PICK_MODE_CONTEXT *ctx = &pc_tree->none;
int i, pl;
BLOCK_SIZE subsize;
int this_rate, sum_rate = 0, best_rate = INT_MAX;
int64_t this_dist, sum_dist = 0, best_dist = INT64_MAX;
int64_t sum_rd = 0;
int do_split = bsize >= BLOCK_8X8;
int do_rect = 1;
// Override skipping rectangular partition operations for edge blocks
const int force_horz_split = (mi_row + mi_step >= cm->mi_rows);
const int force_vert_split = (mi_col + mi_step >= cm->mi_cols);
const int xss = x->e_mbd.plane[1].subsampling_x;
const int yss = x->e_mbd.plane[1].subsampling_y;
BLOCK_SIZE min_size = cpi->sf.min_partition_size;
BLOCK_SIZE max_size = cpi->sf.max_partition_size;
#if CONFIG_FP_MB_STATS
unsigned int src_diff_var = UINT_MAX;
int none_complexity = 0;
#endif
int partition_none_allowed = !force_horz_split && !force_vert_split;
int partition_horz_allowed = !force_vert_split && yss <= xss &&
bsize >= BLOCK_8X8;
int partition_vert_allowed = !force_horz_split && xss <= yss &&
bsize >= BLOCK_8X8;
(void) *tp_orig;
assert(num_8x8_blocks_wide_lookup[bsize] ==
num_8x8_blocks_high_lookup[bsize]);
set_offsets(cpi, tile, mi_row, mi_col, bsize);
if (bsize == BLOCK_16X16 && cpi->oxcf.aq_mode)
x->mb_energy = vp9_block_energy(cpi, x, bsize);
if (cpi->sf.cb_partition_search && bsize == BLOCK_16X16) {
int cb_partition_search_ctrl = ((pc_tree->index == 0 || pc_tree->index == 3)
+ get_chessboard_index(cm->current_video_frame)) & 0x1;
if (cb_partition_search_ctrl && bsize > min_size && bsize < max_size)
set_partition_range(cm, xd, mi_row, mi_col, bsize, &min_size, &max_size);
}
// Determine partition types in search according to the speed features.
// The threshold set here has to be of square block size.
if (cpi->sf.auto_min_max_partition_size) {
partition_none_allowed &= (bsize <= max_size && bsize >= min_size);
partition_horz_allowed &= ((bsize <= max_size && bsize > min_size) ||
force_horz_split);
partition_vert_allowed &= ((bsize <= max_size && bsize > min_size) ||
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;
}
save_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
#if CONFIG_FP_MB_STATS
if (cpi->use_fp_mb_stats) {
set_offsets(cpi, tile, mi_row, mi_col, bsize);
src_diff_var = get_sby_perpixel_diff_variance(cpi, &cpi->mb.plane[0].src,
mi_row, mi_col, bsize);
}
#endif
#if CONFIG_FP_MB_STATS
// Decide whether we shall split directly and skip searching NONE by using
// the first pass block statistics
if (cpi->use_fp_mb_stats && bsize >= BLOCK_32X32 && do_split &&
partition_none_allowed && src_diff_var > 4 &&
cm->base_qindex < qindex_split_threshold_lookup[bsize]) {
int mb_row = mi_row >> 1;
int mb_col = mi_col >> 1;
int mb_row_end =
MIN(mb_row + num_16x16_blocks_high_lookup[bsize], cm->mb_rows);
int mb_col_end =
MIN(mb_col + num_16x16_blocks_wide_lookup[bsize], cm->mb_cols);
int r, c;
// compute a complexity measure, basically measure inconsistency of motion
// vectors obtained from the first pass in the current block
for (r = mb_row; r < mb_row_end ; r++) {
for (c = mb_col; c < mb_col_end; c++) {
const int mb_index = r * cm->mb_cols + c;
MOTION_DIRECTION this_mv;
MOTION_DIRECTION right_mv;
MOTION_DIRECTION bottom_mv;
this_mv =
get_motion_direction_fp(cpi->twopass.this_frame_mb_stats[mb_index]);
// to its right
if (c != mb_col_end - 1) {
right_mv = get_motion_direction_fp(
cpi->twopass.this_frame_mb_stats[mb_index + 1]);
none_complexity += get_motion_inconsistency(this_mv, right_mv);
}
// to its bottom
if (r != mb_row_end - 1) {
bottom_mv = get_motion_direction_fp(
cpi->twopass.this_frame_mb_stats[mb_index + cm->mb_cols]);
none_complexity += get_motion_inconsistency(this_mv, bottom_mv);
}
// do not count its left and top neighbors to avoid double counting
}
}
if (none_complexity > complexity_16x16_blocks_threshold[bsize]) {
partition_none_allowed = 0;
}
}
#endif
// PARTITION_NONE
if (partition_none_allowed) {
rd_pick_sb_modes(cpi, tile, mi_row, mi_col, &this_rate, &this_dist, bsize,
ctx, best_rd, 0);
if (this_rate != INT_MAX) {
if (bsize >= BLOCK_8X8) {
pl = partition_plane_context(xd, mi_row, mi_col, bsize);
this_rate += cpi->partition_cost[pl][PARTITION_NONE];
}
sum_rd = RDCOST(x->rdmult, x->rddiv, this_rate, this_dist);
if (sum_rd < best_rd) {
int64_t dist_breakout_thr = cpi->sf.partition_search_breakout_dist_thr;
int rate_breakout_thr = cpi->sf.partition_search_breakout_rate_thr;
best_rate = this_rate;
best_dist = this_dist;
best_rd = sum_rd;
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(bsize) +
b_height_log2(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_dist < dist_breakout_thr &&
best_rate < rate_breakout_thr)) {
do_split = 0;
do_rect = 0;
}
#if CONFIG_FP_MB_STATS
// Check if every 16x16 first pass block statistics has zero
// motion and the corresponding first pass residue is small enough.
// If that is the case, check the difference variance between the
// current frame and the last frame. If the variance is small enough,
// stop further splitting in RD optimization
if (cpi->use_fp_mb_stats && do_split != 0 &&
cm->base_qindex > qindex_skip_threshold_lookup[bsize]) {
int mb_row = mi_row >> 1;
int mb_col = mi_col >> 1;
int mb_row_end =
MIN(mb_row + num_16x16_blocks_high_lookup[bsize], cm->mb_rows);
int mb_col_end =
MIN(mb_col + num_16x16_blocks_wide_lookup[bsize], cm->mb_cols);
int r, c;
int skip = 1;
for (r = mb_row; r < mb_row_end; r++) {
for (c = mb_col; c < mb_col_end; c++) {
const int mb_index = r * cm->mb_cols + c;
if (!(cpi->twopass.this_frame_mb_stats[mb_index] &
FPMB_MOTION_ZERO_MASK) ||
!(cpi->twopass.this_frame_mb_stats[mb_index] &
FPMB_ERROR_SMALL_MASK)) {
skip = 0;
break;
}
}
if (skip == 0) {
break;
}
}
if (skip) {
if (src_diff_var == UINT_MAX) {
set_offsets(cpi, tile, mi_row, mi_col, bsize);
src_diff_var = get_sby_perpixel_diff_variance(
cpi, &cpi->mb.plane[0].src, mi_row, mi_col, bsize);
}
if (src_diff_var < 8) {
do_split = 0;
do_rect = 0;
}
}
}
#endif
}
}
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
}
// store estimated motion vector
if (cpi->sf.adaptive_motion_search)
store_pred_mv(x, ctx);
// PARTITION_SPLIT
sum_rd = 0;
// TODO(jingning): use the motion vectors given by the above search as
// the starting point of motion search in the following partition type check.
if (do_split) {
subsize = get_subsize(bsize, PARTITION_SPLIT);
if (bsize == BLOCK_8X8) {
i = 4;
if (cpi->sf.adaptive_pred_interp_filter && partition_none_allowed)
pc_tree->leaf_split[0]->pred_interp_filter =
ctx->mic.mbmi.interp_filter;
rd_pick_sb_modes(cpi, tile, mi_row, mi_col, &sum_rate, &sum_dist, subsize,
pc_tree->leaf_split[0], best_rd, 0);
if (sum_rate == INT_MAX)
sum_rd = INT64_MAX;
else
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
} else {
for (i = 0; i < 4 && sum_rd < best_rd; ++i) {
const int x_idx = (i & 1) * mi_step;
const int y_idx = (i >> 1) * mi_step;
if (mi_row + y_idx >= cm->mi_rows || mi_col + x_idx >= cm->mi_cols)
continue;
if (cpi->sf.adaptive_motion_search)
load_pred_mv(x, ctx);
pc_tree->split[i]->index = i;
rd_pick_partition(cpi, tile, tp, mi_row + y_idx, mi_col + x_idx,
subsize, &this_rate, &this_dist,
best_rd - sum_rd, pc_tree->split[i]);
if (this_rate == INT_MAX) {
sum_rd = INT64_MAX;
} else {
sum_rate += this_rate;
sum_dist += this_dist;
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
}
}
}
if (sum_rd < best_rd && i == 4) {
pl = partition_plane_context(xd, mi_row, mi_col, bsize);
sum_rate += cpi->partition_cost[pl][PARTITION_SPLIT];
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
if (sum_rd < best_rd) {
best_rate = sum_rate;
best_dist = sum_dist;
best_rd = sum_rd;
pc_tree->partitioning = PARTITION_SPLIT;
}
} else {
// skip rectangular partition test when larger block size
// gives better rd cost
if (cpi->sf.less_rectangular_check)
do_rect &= !partition_none_allowed;
}
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
}
// PARTITION_HORZ
if (partition_horz_allowed && do_rect) {
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 &&
partition_none_allowed)
pc_tree->horizontal[0].pred_interp_filter =
ctx->mic.mbmi.interp_filter;
rd_pick_sb_modes(cpi, tile, mi_row, mi_col, &sum_rate, &sum_dist, subsize,
&pc_tree->horizontal[0], best_rd, 0);
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
if (sum_rd < best_rd && mi_row + mi_step < cm->mi_rows) {
PICK_MODE_CONTEXT *ctx = &pc_tree->horizontal[0];
update_state(cpi, ctx, mi_row, mi_col, subsize, 0);
encode_superblock(cpi, tp, 0, mi_row, mi_col, subsize, ctx);
if (cpi->sf.adaptive_motion_search)
load_pred_mv(x, ctx);
if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 &&
partition_none_allowed)
pc_tree->horizontal[1].pred_interp_filter =
ctx->mic.mbmi.interp_filter;
rd_pick_sb_modes(cpi, tile, mi_row + mi_step, mi_col, &this_rate,
&this_dist, subsize, &pc_tree->horizontal[1],
best_rd - sum_rd, 1);
if (this_rate == INT_MAX) {
sum_rd = INT64_MAX;
} else {
sum_rate += this_rate;
sum_dist += this_dist;
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
}
}
if (sum_rd < best_rd) {
pl = partition_plane_context(xd, mi_row, mi_col, bsize);
sum_rate += cpi->partition_cost[pl][PARTITION_HORZ];
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
if (sum_rd < best_rd) {
best_rd = sum_rd;
best_rate = sum_rate;
best_dist = sum_dist;
pc_tree->partitioning = PARTITION_HORZ;
}
}
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
}
// PARTITION_VERT
if (partition_vert_allowed && do_rect) {
subsize = get_subsize(bsize, PARTITION_VERT);
if (cpi->sf.adaptive_motion_search)
load_pred_mv(x, ctx);
if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 &&
partition_none_allowed)
pc_tree->vertical[0].pred_interp_filter =
ctx->mic.mbmi.interp_filter;
rd_pick_sb_modes(cpi, tile, mi_row, mi_col, &sum_rate, &sum_dist, subsize,
&pc_tree->vertical[0], best_rd, 0);
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
if (sum_rd < best_rd && mi_col + mi_step < cm->mi_cols) {
update_state(cpi, &pc_tree->vertical[0], mi_row, mi_col, subsize, 0);
encode_superblock(cpi, tp, 0, mi_row, mi_col, subsize,
&pc_tree->vertical[0]);
if (cpi->sf.adaptive_motion_search)
load_pred_mv(x, ctx);
if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 &&
partition_none_allowed)
pc_tree->vertical[1].pred_interp_filter =
ctx->mic.mbmi.interp_filter;
rd_pick_sb_modes(cpi, tile, mi_row, mi_col + mi_step, &this_rate,
&this_dist, subsize,
&pc_tree->vertical[1], best_rd - sum_rd,
1);
if (this_rate == INT_MAX) {
sum_rd = INT64_MAX;
} else {
sum_rate += this_rate;
sum_dist += this_dist;
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
}
}
if (sum_rd < best_rd) {
pl = partition_plane_context(xd, mi_row, mi_col, bsize);
sum_rate += cpi->partition_cost[pl][PARTITION_VERT];
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
if (sum_rd < best_rd) {
best_rate = sum_rate;
best_dist = sum_dist;
best_rd = sum_rd;
pc_tree->partitioning = PARTITION_VERT;
}
}
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
}
// TODO(jbb): This code added so that we avoid static analysis
// warning related to the fact that best_rd isn't used after this
// point. This code should be refactored so that the duplicate
// checks occur in some sub function and thus are used...
(void) best_rd;
*rate = best_rate;
*dist = best_dist;
if (best_rate < INT_MAX && best_dist < INT64_MAX && pc_tree->index != 3) {
int output_enabled = (bsize == BLOCK_64X64);
// Check the projected output rate for this SB against it's target
// and and if necessary apply a Q delta using segmentation to get
// closer to the target.
if ((cpi->oxcf.aq_mode == COMPLEXITY_AQ) && cm->seg.update_map)
vp9_select_in_frame_q_segment(cpi, mi_row, mi_col, output_enabled,
best_rate);
if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ)
vp9_cyclic_refresh_set_rate_and_dist_sb(cpi->cyclic_refresh,
best_rate, best_dist);
encode_sb(cpi, tile, tp, mi_row, mi_col, output_enabled, bsize, pc_tree);
}
if (bsize == BLOCK_64X64) {
assert(tp_orig < *tp);
assert(best_rate < INT_MAX);
assert(best_dist < INT64_MAX);
} else {
assert(tp_orig == *tp);
}
}
static void encode_rd_sb_row(VP9_COMP *cpi, const TileInfo *const tile,
int mi_row, TOKENEXTRA **tp) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &cpi->mb.e_mbd;
SPEED_FEATURES *const sf = &cpi->sf;
int mi_col;
// Initialize the left context for the new SB row
vpx_memset(&xd->left_context, 0, sizeof(xd->left_context));
vpx_memset(xd->left_seg_context, 0, sizeof(xd->left_seg_context));
// Code each SB in the row
for (mi_col = tile->mi_col_start; mi_col < tile->mi_col_end;
mi_col += MI_BLOCK_SIZE) {
int dummy_rate;
int64_t dummy_dist;
int i;
if (sf->adaptive_pred_interp_filter) {
for (i = 0; i < 64; ++i)
cpi->leaf_tree[i].pred_interp_filter = SWITCHABLE;
for (i = 0; i < 64; ++i) {
cpi->pc_tree[i].vertical[0].pred_interp_filter = SWITCHABLE;
cpi->pc_tree[i].vertical[1].pred_interp_filter = SWITCHABLE;
cpi->pc_tree[i].horizontal[0].pred_interp_filter = SWITCHABLE;
cpi->pc_tree[i].horizontal[1].pred_interp_filter = SWITCHABLE;
}
}
vp9_zero(cpi->mb.pred_mv);
cpi->pc_root->index = 0;
if ((sf->partition_search_type == SEARCH_PARTITION &&
sf->use_lastframe_partitioning) ||
sf->partition_search_type == FIXED_PARTITION ||
sf->partition_search_type == VAR_BASED_PARTITION ||
sf->partition_search_type == VAR_BASED_FIXED_PARTITION) {
const int idx_str = cm->mi_stride * mi_row + mi_col;
MODE_INFO **mi = cm->mi_grid_visible + idx_str;
MODE_INFO **prev_mi = cm->prev_mi_grid_visible + idx_str;
cpi->mb.source_variance = UINT_MAX;
if (sf->partition_search_type == FIXED_PARTITION) {
set_offsets(cpi, tile, mi_row, mi_col, BLOCK_64X64);
set_fixed_partitioning(cpi, tile, mi, mi_row, mi_col,
sf->always_this_block_size);
rd_use_partition(cpi, tile, mi, tp, mi_row, mi_col, BLOCK_64X64,
&dummy_rate, &dummy_dist, 1, cpi->pc_root);
} else if (cpi->skippable_frame ||
sf->partition_search_type == VAR_BASED_FIXED_PARTITION) {
BLOCK_SIZE bsize;
set_offsets(cpi, tile, mi_row, mi_col, BLOCK_64X64);
bsize = get_rd_var_based_fixed_partition(cpi, mi_row, mi_col);
set_fixed_partitioning(cpi, tile, mi, mi_row, mi_col, bsize);
rd_use_partition(cpi, tile, mi, tp, mi_row, mi_col, BLOCK_64X64,
&dummy_rate, &dummy_dist, 1, cpi->pc_root);
} else if (sf->partition_search_type == VAR_BASED_PARTITION) {
choose_partitioning(cpi, tile, mi_row, mi_col);
rd_use_partition(cpi, tile, mi, tp, mi_row, mi_col, BLOCK_64X64,
&dummy_rate, &dummy_dist, 1, cpi->pc_root);
} else {
GF_GROUP * gf_grp = &cpi->twopass.gf_group;
int last_was_mid_sequence_overlay = 0;
if ((cpi->oxcf.pass == 2) && (gf_grp->index)) {
if (gf_grp->update_type[gf_grp->index - 1] == OVERLAY_UPDATE)
last_was_mid_sequence_overlay = 1;
}
if ((cpi->rc.frames_since_key
% sf->last_partitioning_redo_frequency) == 0
|| last_was_mid_sequence_overlay
|| cm->prev_mi == 0
|| cm->show_frame == 0
|| cm->frame_type == KEY_FRAME
|| cpi->rc.is_src_frame_alt_ref
|| ((sf->use_lastframe_partitioning ==
LAST_FRAME_PARTITION_LOW_MOTION) &&
sb_has_motion(cm, prev_mi, sf->lf_motion_threshold))) {
// If required set upper and lower partition size limits
if (sf->auto_min_max_partition_size) {
set_offsets(cpi, tile, mi_row, mi_col, BLOCK_64X64);
rd_auto_partition_range(cpi, tile, mi_row, mi_col,
&sf->min_partition_size,
&sf->max_partition_size);
}
rd_pick_partition(cpi, tile, tp, mi_row, mi_col, BLOCK_64X64,
&dummy_rate, &dummy_dist, INT64_MAX,
cpi->pc_root);
} else {
if (sf->constrain_copy_partition &&
sb_has_motion(cm, prev_mi, sf->lf_motion_threshold))
constrain_copy_partitioning(cpi, tile, mi, prev_mi,
mi_row, mi_col, BLOCK_16X16);
else
copy_partitioning(cm, mi, prev_mi);
rd_use_partition(cpi, tile, mi, tp, mi_row, mi_col, BLOCK_64X64,
&dummy_rate, &dummy_dist, 1, cpi->pc_root);
}
}
} else {
// If required set upper and lower partition size limits
if (sf->auto_min_max_partition_size) {
set_offsets(cpi, tile, mi_row, mi_col, BLOCK_64X64);
rd_auto_partition_range(cpi, tile, mi_row, mi_col,
&sf->min_partition_size,
&sf->max_partition_size);
}
rd_pick_partition(cpi, tile, tp, mi_row, mi_col, BLOCK_64X64,
&dummy_rate, &dummy_dist, INT64_MAX, cpi->pc_root);
}
}
}
static void init_encode_frame_mb_context(VP9_COMP *cpi) {
MACROBLOCK *const x = &cpi->mb;
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
const int aligned_mi_cols = mi_cols_aligned_to_sb(cm->mi_cols);
// Copy data over into macro block data structures.
vp9_setup_src_planes(x, cpi->Source, 0, 0);
vp9_setup_block_planes(&x->e_mbd, cm->subsampling_x, cm->subsampling_y);
// Note: this memset assumes above_context[0], [1] and [2]
// are allocated as part of the same buffer.
vpx_memset(xd->above_context[0], 0,
sizeof(*xd->above_context[0]) *
2 * aligned_mi_cols * MAX_MB_PLANE);
vpx_memset(xd->above_seg_context, 0,
sizeof(*xd->above_seg_context) * aligned_mi_cols);
}
static int check_dual_ref_flags(VP9_COMP *cpi) {
const int ref_flags = cpi->ref_frame_flags;
if (vp9_segfeature_active(&cpi->common.seg, 1, SEG_LVL_REF_FRAME)) {
return 0;
} else {
return (!!(ref_flags & VP9_GOLD_FLAG) + !!(ref_flags & VP9_LAST_FLAG)
+ !!(ref_flags & VP9_ALT_FLAG)) >= 2;
}
}
static void reset_skip_tx_size(VP9_COMMON *cm, TX_SIZE max_tx_size) {
int mi_row, mi_col;
const int mis = cm->mi_stride;
MODE_INFO **mi_ptr = cm->mi_grid_visible;
for (mi_row = 0; mi_row < cm->mi_rows; ++mi_row, mi_ptr += mis) {
for (mi_col = 0; mi_col < cm->mi_cols; ++mi_col) {
if (mi_ptr[mi_col]->mbmi.tx_size > max_tx_size)
mi_ptr[mi_col]->mbmi.tx_size = max_tx_size;
}
}
}
static MV_REFERENCE_FRAME get_frame_type(const VP9_COMP *cpi) {
if (frame_is_intra_only(&cpi->common))
return INTRA_FRAME;
else if (cpi->rc.is_src_frame_alt_ref && cpi->refresh_golden_frame)
return ALTREF_FRAME;
else if (cpi->refresh_golden_frame || cpi->refresh_alt_ref_frame)
return GOLDEN_FRAME;
else
return LAST_FRAME;
}
static TX_MODE select_tx_mode(const VP9_COMP *cpi) {
if (cpi->mb.e_mbd.lossless)
return ONLY_4X4;
if (cpi->common.frame_type == KEY_FRAME)
return TX_MODE_SELECT;
if (cpi->sf.tx_size_search_method == USE_LARGESTALL)
return ALLOW_32X32;
else if (cpi->sf.tx_size_search_method == USE_FULL_RD||
cpi->sf.tx_size_search_method == USE_TX_8X8)
return TX_MODE_SELECT;
else
return cpi->common.tx_mode;
}
static void nonrd_pick_sb_modes(VP9_COMP *cpi, const TileInfo *const tile,
int mi_row, int mi_col,
int *rate, int64_t *dist,
BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *mbmi;
set_offsets(cpi, tile, mi_row, mi_col, bsize);
mbmi = &xd->mi[0]->mbmi;
mbmi->sb_type = bsize;
if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && cm->seg.enabled)
if (mbmi->segment_id && x->in_static_area)
x->rdmult = vp9_cyclic_refresh_get_rdmult(cpi->cyclic_refresh);
if (vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP))
set_mode_info_seg_skip(x, cm->tx_mode, rate, dist, bsize);
else
vp9_pick_inter_mode(cpi, x, tile, mi_row, mi_col, rate, dist, bsize, ctx);
duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col, bsize);
}
static void fill_mode_info_sb(VP9_COMMON *cm, MACROBLOCK *x,
int mi_row, int mi_col,
BLOCK_SIZE bsize, BLOCK_SIZE subsize,
PC_TREE *pc_tree) {
MACROBLOCKD *xd = &x->e_mbd;
int bsl = b_width_log2(bsize), hbs = (1 << bsl) / 4;
PARTITION_TYPE partition = pc_tree->partitioning;
assert(bsize >= BLOCK_8X8);
if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
return;
switch (partition) {
case PARTITION_NONE:
set_modeinfo_offsets(cm, xd, mi_row, mi_col);
*(xd->mi[0]) = pc_tree->none.mic;
duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col, bsize);
break;
case PARTITION_VERT:
set_modeinfo_offsets(cm, xd, mi_row, mi_col);
*(xd->mi[0]) = pc_tree->vertical[0].mic;
duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col, bsize);
if (mi_col + hbs < cm->mi_cols) {
set_modeinfo_offsets(cm, xd, mi_row, mi_col + hbs);
*(xd->mi[0]) = pc_tree->vertical[1].mic;
duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col + hbs, bsize);
}
break;
case PARTITION_HORZ:
set_modeinfo_offsets(cm, xd, mi_row, mi_col);
*(xd->mi[0]) = pc_tree->horizontal[0].mic;
duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col, bsize);
if (mi_row + hbs < cm->mi_rows) {
set_modeinfo_offsets(cm, xd, mi_row + hbs, mi_col);
*(xd->mi[0]) = pc_tree->horizontal[1].mic;
duplicate_mode_info_in_sb(cm, xd, mi_row + hbs, mi_col, bsize);
}
break;
case PARTITION_SPLIT: {
BLOCK_SIZE subsubsize = get_subsize(subsize, PARTITION_SPLIT);
fill_mode_info_sb(cm, x, mi_row, mi_col, subsize,
subsubsize, pc_tree->split[0]);
fill_mode_info_sb(cm, x, mi_row, mi_col + hbs, subsize,
subsubsize, pc_tree->split[1]);
fill_mode_info_sb(cm, x, mi_row + hbs, mi_col, subsize,
subsubsize, pc_tree->split[2]);
fill_mode_info_sb(cm, x, mi_row + hbs, mi_col + hbs, subsize,
subsubsize, pc_tree->split[3]);
break;
}
default:
break;
}
}
static void nonrd_pick_partition(VP9_COMP *cpi, const TileInfo *const tile,
TOKENEXTRA **tp, int mi_row,
int mi_col, BLOCK_SIZE bsize, int *rate,
int64_t *dist, int do_recon, int64_t best_rd,
PC_TREE *pc_tree) {
const SPEED_FEATURES *const sf = &cpi->sf;
const VP9EncoderConfig *const oxcf = &cpi->oxcf;
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
const int ms = num_8x8_blocks_wide_lookup[bsize] / 2;
TOKENEXTRA *tp_orig = *tp;
PICK_MODE_CONTEXT *ctx = &pc_tree->none;
int i;
BLOCK_SIZE subsize = bsize;
int this_rate, sum_rate = 0, best_rate = INT_MAX;
int64_t this_dist, sum_dist = 0, best_dist = INT64_MAX;
int64_t sum_rd = 0;
int do_split = bsize >= BLOCK_8X8;
int do_rect = 1;
// Override skipping rectangular partition operations for edge blocks
const int force_horz_split = (mi_row + ms >= cm->mi_rows);
const int force_vert_split = (mi_col + ms >= cm->mi_cols);
const int xss = x->e_mbd.plane[1].subsampling_x;
const int yss = x->e_mbd.plane[1].subsampling_y;
int partition_none_allowed = !force_horz_split && !force_vert_split;
int partition_horz_allowed = !force_vert_split && yss <= xss &&
bsize >= BLOCK_8X8;
int partition_vert_allowed = !force_horz_split && xss <= yss &&
bsize >= BLOCK_8X8;
(void) *tp_orig;
assert(num_8x8_blocks_wide_lookup[bsize] ==
num_8x8_blocks_high_lookup[bsize]);
// Determine partition types in search according to the speed features.
// The threshold set here has to be of square block size.
if (sf->auto_min_max_partition_size) {
partition_none_allowed &= (bsize <= sf->max_partition_size &&
bsize >= sf->min_partition_size);
partition_horz_allowed &= ((bsize <= sf->max_partition_size &&
bsize > sf->min_partition_size) ||
force_horz_split);
partition_vert_allowed &= ((bsize <= sf->max_partition_size &&
bsize > sf->min_partition_size) ||
force_vert_split);
do_split &= bsize > sf->min_partition_size;
}
if (sf->use_square_partition_only) {
partition_horz_allowed &= force_horz_split;
partition_vert_allowed &= force_vert_split;
}
// PARTITION_NONE
if (partition_none_allowed) {
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col,
&this_rate, &this_dist, bsize, ctx);
ctx->mic.mbmi = xd->mi[0]->mbmi;
ctx->skip_txfm[0] = x->skip_txfm[0];
ctx->skip = x->skip;
if (this_rate != INT_MAX) {
int pl = partition_plane_context(xd, mi_row, mi_col, bsize);
this_rate += cpi->partition_cost[pl][PARTITION_NONE];
sum_rd = RDCOST(x->rdmult, x->rddiv, this_rate, this_dist);
if (sum_rd < best_rd) {
int64_t stop_thresh = 4096;
int64_t stop_thresh_rd;
best_rate = this_rate;
best_dist = this_dist;
best_rd = sum_rd;
if (bsize >= BLOCK_8X8)
pc_tree->partitioning = PARTITION_NONE;
// Adjust threshold according to partition size.
stop_thresh >>= 8 - (b_width_log2(bsize) +
b_height_log2(bsize));
stop_thresh_rd = RDCOST(x->rdmult, x->rddiv, 0, stop_thresh);
// If obtained distortion is very small, choose current partition
// and stop splitting.
if (!x->e_mbd.lossless && best_rd < stop_thresh_rd) {
do_split = 0;
do_rect = 0;
}
}
}
}
// store estimated motion vector
store_pred_mv(x, ctx);
// PARTITION_SPLIT
sum_rd = 0;
if (do_split) {
int pl = partition_plane_context(xd, mi_row, mi_col, bsize);
sum_rate += cpi->partition_cost[pl][PARTITION_SPLIT];
subsize = get_subsize(bsize, PARTITION_SPLIT);
for (i = 0; i < 4 && sum_rd < best_rd; ++i) {
const int x_idx = (i & 1) * ms;
const int y_idx = (i >> 1) * ms;
if (mi_row + y_idx >= cm->mi_rows || mi_col + x_idx >= cm->mi_cols)
continue;
load_pred_mv(x, ctx);
nonrd_pick_partition(cpi, tile, tp, mi_row + y_idx, mi_col + x_idx,
subsize, &this_rate, &this_dist, 0,
best_rd - sum_rd, pc_tree->split[i]);
if (this_rate == INT_MAX) {
sum_rd = INT64_MAX;
} else {
sum_rate += this_rate;
sum_dist += this_dist;
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
}
}
if (sum_rd < best_rd) {
best_rate = sum_rate;
best_dist = sum_dist;
best_rd = sum_rd;
pc_tree->partitioning = PARTITION_SPLIT;
} else {
// skip rectangular partition test when larger block size
// gives better rd cost
if (sf->less_rectangular_check)
do_rect &= !partition_none_allowed;
}
}
// PARTITION_HORZ
if (partition_horz_allowed && do_rect) {
subsize = get_subsize(bsize, PARTITION_HORZ);
if (sf->adaptive_motion_search)
load_pred_mv(x, ctx);
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col,
&this_rate, &this_dist, subsize,
&pc_tree->horizontal[0]);
pc_tree->horizontal[0].mic.mbmi = xd->mi[0]->mbmi;
pc_tree->horizontal[0].skip_txfm[0] = x->skip_txfm[0];
pc_tree->horizontal[0].skip = x->skip;
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
if (sum_rd < best_rd && mi_row + ms < cm->mi_rows) {
load_pred_mv(x, ctx);
nonrd_pick_sb_modes(cpi, tile, mi_row + ms, mi_col,
&this_rate, &this_dist, subsize,
&pc_tree->horizontal[1]);
pc_tree->horizontal[1].mic.mbmi = xd->mi[0]->mbmi;
pc_tree->horizontal[1].skip_txfm[0] = x->skip_txfm[0];
pc_tree->horizontal[1].skip = x->skip;
if (this_rate == INT_MAX) {
sum_rd = INT64_MAX;
} else {
int pl = partition_plane_context(xd, mi_row, mi_col, bsize);
this_rate += cpi->partition_cost[pl][PARTITION_HORZ];
sum_rate += this_rate;
sum_dist += this_dist;
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
}
}
if (sum_rd < best_rd) {
best_rd = sum_rd;
best_rate = sum_rate;
best_dist = sum_dist;
pc_tree->partitioning = PARTITION_HORZ;
}
}
// PARTITION_VERT
if (partition_vert_allowed && do_rect) {
subsize = get_subsize(bsize, PARTITION_VERT);
if (sf->adaptive_motion_search)
load_pred_mv(x, ctx);
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col,
&this_rate, &this_dist, subsize,
&pc_tree->vertical[0]);
pc_tree->vertical[0].mic.mbmi = xd->mi[0]->mbmi;
pc_tree->vertical[0].skip_txfm[0] = x->skip_txfm[0];
pc_tree->vertical[0].skip = x->skip;
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
if (sum_rd < best_rd && mi_col + ms < cm->mi_cols) {
load_pred_mv(x, ctx);
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col + ms,
&this_rate, &this_dist, subsize,
&pc_tree->vertical[1]);
pc_tree->vertical[1].mic.mbmi = xd->mi[0]->mbmi;
pc_tree->vertical[1].skip_txfm[0] = x->skip_txfm[0];
pc_tree->vertical[1].skip = x->skip;
if (this_rate == INT_MAX) {
sum_rd = INT64_MAX;
} else {
int pl = partition_plane_context(xd, mi_row, mi_col, bsize);
this_rate += cpi->partition_cost[pl][PARTITION_VERT];
sum_rate += this_rate;
sum_dist += this_dist;
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
}
}
if (sum_rd < best_rd) {
best_rate = sum_rate;
best_dist = sum_dist;
best_rd = sum_rd;
pc_tree->partitioning = PARTITION_VERT;
}
}
// TODO(JBB): The following line is here just to avoid a static warning
// that occurs because at this point we never again reuse best_rd
// despite setting it here. The code should be refactored to avoid this.
(void) best_rd;
*rate = best_rate;
*dist = best_dist;
if (best_rate == INT_MAX)
return;
// update mode info array
subsize = get_subsize(bsize, pc_tree->partitioning);
fill_mode_info_sb(cm, x, mi_row, mi_col, bsize, subsize,
pc_tree);
if (best_rate < INT_MAX && best_dist < INT64_MAX && do_recon) {
int output_enabled = (bsize == BLOCK_64X64);
// Check the projected output rate for this SB against it's target
// and and if necessary apply a Q delta using segmentation to get
// closer to the target.
if ((oxcf->aq_mode == COMPLEXITY_AQ) && cm->seg.update_map) {
vp9_select_in_frame_q_segment(cpi, mi_row, mi_col, output_enabled,
best_rate);
}
if (oxcf->aq_mode == CYCLIC_REFRESH_AQ)
vp9_cyclic_refresh_set_rate_and_dist_sb(cpi->cyclic_refresh,
best_rate, best_dist);
encode_sb_rt(cpi, tile, tp, mi_row, mi_col, output_enabled, bsize, pc_tree);
}
if (bsize == BLOCK_64X64) {
assert(tp_orig < *tp);
assert(best_rate < INT_MAX);
assert(best_dist < INT64_MAX);
} else {
assert(tp_orig == *tp);
}
}
static void nonrd_use_partition(VP9_COMP *cpi,
const TileInfo *const tile,
MODE_INFO **mi,
TOKENEXTRA **tp,
int mi_row, int mi_col,
BLOCK_SIZE bsize, int output_enabled,
int *totrate, int64_t *totdist,
PC_TREE *pc_tree) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
const int bsl = b_width_log2(bsize), hbs = (1 << bsl) / 4;
const int mis = cm->mi_stride;
PARTITION_TYPE partition;
BLOCK_SIZE subsize;
int rate = INT_MAX;
int64_t dist = INT64_MAX;
if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
return;
subsize = (bsize >= BLOCK_8X8) ? mi[0]->mbmi.sb_type : BLOCK_4X4;
partition = partition_lookup[bsl][subsize];
switch (partition) {
case PARTITION_NONE:
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col, totrate, totdist,
subsize, &pc_tree->none);
pc_tree->none.mic.mbmi = xd->mi[0]->mbmi;
pc_tree->none.skip_txfm[0] = x->skip_txfm[0];
pc_tree->none.skip = x->skip;
break;
case PARTITION_VERT:
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col, totrate, totdist,
subsize, &pc_tree->vertical[0]);
pc_tree->vertical[0].mic.mbmi = xd->mi[0]->mbmi;
pc_tree->vertical[0].skip_txfm[0] = x->skip_txfm[0];
pc_tree->vertical[0].skip = x->skip;
if (mi_col + hbs < cm->mi_cols) {
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col + hbs,
&rate, &dist, subsize, &pc_tree->vertical[1]);
pc_tree->vertical[1].mic.mbmi = xd->mi[0]->mbmi;
pc_tree->vertical[1].skip_txfm[0] = x->skip_txfm[0];
pc_tree->vertical[1].skip = x->skip;
if (rate != INT_MAX && dist != INT64_MAX &&
*totrate != INT_MAX && *totdist != INT64_MAX) {
*totrate += rate;
*totdist += dist;
}
}
break;
case PARTITION_HORZ:
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col, totrate, totdist,
subsize, &pc_tree->horizontal[0]);
pc_tree->horizontal[0].mic.mbmi = xd->mi[0]->mbmi;
pc_tree->horizontal[0].skip_txfm[0] = x->skip_txfm[0];
pc_tree->horizontal[0].skip = x->skip;
if (mi_row + hbs < cm->mi_rows) {
nonrd_pick_sb_modes(cpi, tile, mi_row + hbs, mi_col,
&rate, &dist, subsize, &pc_tree->horizontal[0]);
pc_tree->horizontal[1].mic.mbmi = xd->mi[0]->mbmi;
pc_tree->horizontal[1].skip_txfm[0] = x->skip_txfm[0];
pc_tree->horizontal[1].skip = x->skip;
if (rate != INT_MAX && dist != INT64_MAX &&
*totrate != INT_MAX && *totdist != INT64_MAX) {
*totrate += rate;
*totdist += dist;
}
}
break;
case PARTITION_SPLIT:
subsize = get_subsize(bsize, PARTITION_SPLIT);
nonrd_use_partition(cpi, tile, mi, tp, mi_row, mi_col,
subsize, output_enabled, totrate, totdist,
pc_tree->split[0]);
nonrd_use_partition(cpi, tile, mi + hbs, tp,
mi_row, mi_col + hbs, subsize, output_enabled,
&rate, &dist, pc_tree->split[1]);
if (rate != INT_MAX && dist != INT64_MAX &&
*totrate != INT_MAX && *totdist != INT64_MAX) {
*totrate += rate;
*totdist += dist;
}
nonrd_use_partition(cpi, tile, mi + hbs * mis, tp,
mi_row + hbs, mi_col, subsize, output_enabled,
&rate, &dist, pc_tree->split[2]);
if (rate != INT_MAX && dist != INT64_MAX &&
*totrate != INT_MAX && *totdist != INT64_MAX) {
*totrate += rate;
*totdist += dist;
}
nonrd_use_partition(cpi, tile, mi + hbs * mis + hbs, tp,
mi_row + hbs, mi_col + hbs, subsize, output_enabled,
&rate, &dist, pc_tree->split[3]);
if (rate != INT_MAX && dist != INT64_MAX &&
*totrate != INT_MAX && *totdist != INT64_MAX) {
*totrate += rate;
*totdist += dist;
}
break;
default:
assert("Invalid partition type.");
break;
}
if (bsize == BLOCK_64X64 && output_enabled) {
if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ)
vp9_cyclic_refresh_set_rate_and_dist_sb(cpi->cyclic_refresh,
*totrate, *totdist);
encode_sb_rt(cpi, tile, tp, mi_row, mi_col, 1, bsize, pc_tree);
}
}
static void encode_nonrd_sb_row(VP9_COMP *cpi, const TileInfo *const tile,
int mi_row, TOKENEXTRA **tp) {
SPEED_FEATURES *const sf = &cpi->sf;
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
int mi_col;
// Initialize the left context for the new SB row
vpx_memset(&xd->left_context, 0, sizeof(xd->left_context));
vpx_memset(xd->left_seg_context, 0, sizeof(xd->left_seg_context));
// Code each SB in the row
for (mi_col = tile->mi_col_start; mi_col < tile->mi_col_end;
mi_col += MI_BLOCK_SIZE) {
int dummy_rate = 0;
int64_t dummy_dist = 0;
const int idx_str = cm->mi_stride * mi_row + mi_col;
MODE_INFO **mi = cm->mi_grid_visible + idx_str;
MODE_INFO **prev_mi = cm->prev_mi_grid_visible + idx_str;
BLOCK_SIZE bsize;
x->in_static_area = 0;
x->source_variance = UINT_MAX;
vp9_zero(x->pred_mv);
// Set the partition type of the 64X64 block
switch (sf->partition_search_type) {
case VAR_BASED_PARTITION:
choose_partitioning(cpi, tile, mi_row, mi_col);
nonrd_use_partition(cpi, tile, mi, tp, mi_row, mi_col, BLOCK_64X64,
1, &dummy_rate, &dummy_dist, cpi->pc_root);
break;
case SOURCE_VAR_BASED_PARTITION:
set_source_var_based_partition(cpi, tile, mi, mi_row, mi_col);
nonrd_use_partition(cpi, tile, mi, tp, mi_row, mi_col, BLOCK_64X64,
1, &dummy_rate, &dummy_dist, cpi->pc_root);
break;
case VAR_BASED_FIXED_PARTITION:
case FIXED_PARTITION:
bsize = sf->partition_search_type == FIXED_PARTITION ?
sf->always_this_block_size :
get_nonrd_var_based_fixed_partition(cpi, mi_row, mi_col);
set_fixed_partitioning(cpi, tile, mi, mi_row, mi_col, bsize);
nonrd_use_partition(cpi, tile, mi, tp, mi_row, mi_col, BLOCK_64X64,
1, &dummy_rate, &dummy_dist, cpi->pc_root);
break;
case REFERENCE_PARTITION:
if (sf->partition_check ||
!(x->in_static_area = is_background(cpi, tile, mi_row, mi_col))) {
set_modeinfo_offsets(cm, xd, mi_row, mi_col);
auto_partition_range(cpi, tile, mi_row, mi_col,
&sf->min_partition_size,
&sf->max_partition_size);
nonrd_pick_partition(cpi, tile, tp, mi_row, mi_col, BLOCK_64X64,
&dummy_rate, &dummy_dist, 1, INT64_MAX,
cpi->pc_root);
} else {
copy_partitioning(cm, mi, prev_mi);
nonrd_use_partition(cpi, tile, mi, tp, mi_row, mi_col,
BLOCK_64X64, 1, &dummy_rate, &dummy_dist,
cpi->pc_root);
}
break;
default:
assert(0);
break;
}
}
}
// end RTC play code
static int set_var_thresh_from_histogram(VP9_COMP *cpi) {
const SPEED_FEATURES *const sf = &cpi->sf;
const VP9_COMMON *const cm = &cpi->common;
const uint8_t *src = cpi->Source->y_buffer;
const uint8_t *last_src = cpi->Last_Source->y_buffer;
const int src_stride = cpi->Source->y_stride;
const int last_stride = cpi->Last_Source->y_stride;
// Pick cutoff threshold
const int cutoff = (MIN(cm->width, cm->height) >= 720) ?
(cm->MBs * VAR_HIST_LARGE_CUT_OFF / 100) :
(cm->MBs * VAR_HIST_SMALL_CUT_OFF / 100);
DECLARE_ALIGNED_ARRAY(16, int, hist, VAR_HIST_BINS);
diff *var16 = cpi->source_diff_var;
int sum = 0;
int i, j;
vpx_memset(hist, 0, VAR_HIST_BINS * sizeof(hist[0]));
for (i = 0; i < cm->mb_rows; i++) {
for (j = 0; j < cm->mb_cols; j++) {
vp9_get16x16var(src, src_stride, last_src, last_stride,
&var16->sse, &var16->sum);
var16->var = var16->sse -
(((uint32_t)var16->sum * var16->sum) >> 8);
if (var16->var >= VAR_HIST_MAX_BG_VAR)
hist[VAR_HIST_BINS - 1]++;
else
hist[var16->var / VAR_HIST_FACTOR]++;
src += 16;
last_src += 16;
var16++;
}
src = src - cm->mb_cols * 16 + 16 * src_stride;
last_src = last_src - cm->mb_cols * 16 + 16 * last_stride;
}
cpi->source_var_thresh = 0;
if (hist[VAR_HIST_BINS - 1] < cutoff) {
for (i = 0; i < VAR_HIST_BINS - 1; i++) {
sum += hist[i];
if (sum > cutoff) {
cpi->source_var_thresh = (i + 1) * VAR_HIST_FACTOR;
return 0;
}
}
}
return sf->search_type_check_frequency;
}
static void source_var_based_partition_search_method(VP9_COMP *cpi) {
VP9_COMMON *const cm = &cpi->common;
SPEED_FEATURES *const sf = &cpi->sf;
if (cm->frame_type == KEY_FRAME) {
// For key frame, use SEARCH_PARTITION.
sf->partition_search_type = SEARCH_PARTITION;
} else if (cm->intra_only) {
sf->partition_search_type = FIXED_PARTITION;
} else {
if (cm->last_width != cm->width || cm->last_height != cm->height) {
if (cpi->source_diff_var)
vpx_free(cpi->source_diff_var);
CHECK_MEM_ERROR(cm, cpi->source_diff_var,
vpx_calloc(cm->MBs, sizeof(diff)));
}
if (!cpi->frames_till_next_var_check)
cpi->frames_till_next_var_check = set_var_thresh_from_histogram(cpi);
if (cpi->frames_till_next_var_check > 0) {
sf->partition_search_type = FIXED_PARTITION;
cpi->frames_till_next_var_check--;
}
}
}
static int get_skip_encode_frame(const VP9_COMMON *cm) {
unsigned int intra_count = 0, inter_count = 0;
int j;
for (j = 0; j < INTRA_INTER_CONTEXTS; ++j) {
intra_count += cm->counts.intra_inter[j][0];
inter_count += cm->counts.intra_inter[j][1];
}
return (intra_count << 2) < inter_count &&
cm->frame_type != KEY_FRAME &&
cm->show_frame;
}
static void encode_tiles(VP9_COMP *cpi) {
const VP9_COMMON *const cm = &cpi->common;
const int tile_cols = 1 << cm->log2_tile_cols;
const int tile_rows = 1 << cm->log2_tile_rows;
int tile_col, tile_row;
TOKENEXTRA *tok = cpi->tok;
for (tile_row = 0; tile_row < tile_rows; ++tile_row) {
for (tile_col = 0; tile_col < tile_cols; ++tile_col) {
TileInfo tile;
TOKENEXTRA *old_tok = tok;
int mi_row;
vp9_tile_init(&tile, cm, tile_row, tile_col);
for (mi_row = tile.mi_row_start; mi_row < tile.mi_row_end;
mi_row += MI_BLOCK_SIZE) {
if (cpi->sf.use_nonrd_pick_mode && !frame_is_intra_only(cm))
encode_nonrd_sb_row(cpi, &tile, mi_row, &tok);
else
encode_rd_sb_row(cpi, &tile, mi_row, &tok);
}
cpi->tok_count[tile_row][tile_col] = (unsigned int)(tok - old_tok);
assert(tok - cpi->tok <= get_token_alloc(cm->mb_rows, cm->mb_cols));
}
}
}
#if CONFIG_FP_MB_STATS
static int input_fpmb_stats(FIRSTPASS_MB_STATS *firstpass_mb_stats,
VP9_COMMON *cm, uint8_t **this_frame_mb_stats) {
uint8_t *mb_stats_in = firstpass_mb_stats->mb_stats_start +
cm->current_video_frame * cm->MBs * sizeof(uint8_t);
if (mb_stats_in > firstpass_mb_stats->mb_stats_end)
return EOF;
*this_frame_mb_stats = mb_stats_in;
return 1;
}
#endif
static void encode_frame_internal(VP9_COMP *cpi) {
SPEED_FEATURES *const sf = &cpi->sf;
RD_OPT *const rd_opt = &cpi->rd;
MACROBLOCK *const x = &cpi->mb;
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
xd->mi = cm->mi_grid_visible;
xd->mi[0] = cm->mi;
vp9_zero(cm->counts);
vp9_zero(cpi->coef_counts);
vp9_zero(rd_opt->comp_pred_diff);
vp9_zero(rd_opt->filter_diff);
vp9_zero(rd_opt->tx_select_diff);
vp9_zero(rd_opt->tx_select_threshes);
xd->lossless = cm->base_qindex == 0 &&
cm->y_dc_delta_q == 0 &&
cm->uv_dc_delta_q == 0 &&
cm->uv_ac_delta_q == 0;
cm->tx_mode = select_tx_mode(cpi);
x->fwd_txm4x4 = xd->lossless ? vp9_fwht4x4 : vp9_fdct4x4;
x->itxm_add = xd->lossless ? vp9_iwht4x4_add : vp9_idct4x4_add;
if (xd->lossless) {
x->optimize = 0;
cm->lf.filter_level = 0;
cpi->zbin_mode_boost_enabled = 0;
}
vp9_frame_init_quantizer(cpi);
vp9_initialize_rd_consts(cpi);
vp9_initialize_me_consts(cpi, cm->base_qindex);
init_encode_frame_mb_context(cpi);
set_prev_mi(cm);
x->quant_fp = cpi->sf.use_quant_fp;
vp9_zero(x->skip_txfm);
if (sf->use_nonrd_pick_mode) {
// Initialize internal buffer pointers for rtc coding, where non-RD
// mode decision is used and hence no buffer pointer swap needed.
int i;
struct macroblock_plane *const p = x->plane;
struct macroblockd_plane *const pd = xd->plane;
PICK_MODE_CONTEXT *ctx = &cpi->pc_root->none;
for (i = 0; i < MAX_MB_PLANE; ++i) {
p[i].coeff = ctx->coeff_pbuf[i][0];
p[i].qcoeff = ctx->qcoeff_pbuf[i][0];
pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][0];
p[i].eobs = ctx->eobs_pbuf[i][0];
}
vp9_zero(x->zcoeff_blk);
if (sf->partition_search_type == SOURCE_VAR_BASED_PARTITION)
source_var_based_partition_search_method(cpi);
}
{
struct vpx_usec_timer emr_timer;
vpx_usec_timer_start(&emr_timer);
#if CONFIG_FP_MB_STATS
if (cpi->use_fp_mb_stats) {
input_fpmb_stats(&cpi->twopass.firstpass_mb_stats, cm,
&cpi->twopass.this_frame_mb_stats);
}
#endif
encode_tiles(cpi);
vpx_usec_timer_mark(&emr_timer);
cpi->time_encode_sb_row += vpx_usec_timer_elapsed(&emr_timer);
}
sf->skip_encode_frame = sf->skip_encode_sb ? get_skip_encode_frame(cm) : 0;
#if 0
// Keep record of the total distortion this time around for future use
cpi->last_frame_distortion = cpi->frame_distortion;
#endif
}
static INTERP_FILTER get_interp_filter(
const int64_t threshes[SWITCHABLE_FILTER_CONTEXTS], int is_alt_ref) {
if (!is_alt_ref &&
threshes[EIGHTTAP_SMOOTH] > threshes[EIGHTTAP] &&
threshes[EIGHTTAP_SMOOTH] > threshes[EIGHTTAP_SHARP] &&
threshes[EIGHTTAP_SMOOTH] > threshes[SWITCHABLE - 1]) {
return EIGHTTAP_SMOOTH;
} else if (threshes[EIGHTTAP_SHARP] > threshes[EIGHTTAP] &&
threshes[EIGHTTAP_SHARP] > threshes[SWITCHABLE - 1]) {
return EIGHTTAP_SHARP;
} else if (threshes[EIGHTTAP] > threshes[SWITCHABLE - 1]) {
return EIGHTTAP;
} else {
return SWITCHABLE;
}
}
void vp9_encode_frame(VP9_COMP *cpi) {
VP9_COMMON *const cm = &cpi->common;
RD_OPT *const rd_opt = &cpi->rd;
// In the longer term the encoder should be generalized to match the
// decoder such that we allow compound where one of the 3 buffers has a
// different sign bias and that buffer is then the fixed ref. However, this
// requires further work in the rd loop. For now the only supported encoder
// side behavior is where the ALT ref buffer has opposite sign bias to
// the other two.
if (!frame_is_intra_only(cm)) {
if ((cm->ref_frame_sign_bias[ALTREF_FRAME] ==
cm->ref_frame_sign_bias[GOLDEN_FRAME]) ||
(cm->ref_frame_sign_bias[ALTREF_FRAME] ==
cm->ref_frame_sign_bias[LAST_FRAME])) {
cm->allow_comp_inter_inter = 0;
} else {
cm->allow_comp_inter_inter = 1;
cm->comp_fixed_ref = ALTREF_FRAME;
cm->comp_var_ref[0] = LAST_FRAME;
cm->comp_var_ref[1] = GOLDEN_FRAME;
}
}
if (cpi->sf.frame_parameter_update) {
int i;
// This code does a single RD pass over the whole frame assuming
// either compound, single or hybrid prediction as per whatever has
// worked best for that type of frame in the past.
// It also predicts whether another coding mode would have worked
// better that this coding mode. If that is the case, it remembers
// that for subsequent frames.
// It does the same analysis for transform size selection also.
const MV_REFERENCE_FRAME frame_type = get_frame_type(cpi);
int64_t *const mode_thrs = rd_opt->prediction_type_threshes[frame_type];
int64_t *const filter_thrs = rd_opt->filter_threshes[frame_type];
int *const tx_thrs = rd_opt->tx_select_threshes[frame_type];
const int is_alt_ref = frame_type == ALTREF_FRAME;
/* prediction (compound, single or hybrid) mode selection */
if (is_alt_ref || !cm->allow_comp_inter_inter)
cm->reference_mode = SINGLE_REFERENCE;
else if (mode_thrs[COMPOUND_REFERENCE] > mode_thrs[SINGLE_REFERENCE] &&
mode_thrs[COMPOUND_REFERENCE] >
mode_thrs[REFERENCE_MODE_SELECT] &&
check_dual_ref_flags(cpi) &&
cpi->static_mb_pct == 100)
cm->reference_mode = COMPOUND_REFERENCE;
else if (mode_thrs[SINGLE_REFERENCE] > mode_thrs[REFERENCE_MODE_SELECT])
cm->reference_mode = SINGLE_REFERENCE;
else
cm->reference_mode = REFERENCE_MODE_SELECT;
if (cm->interp_filter == SWITCHABLE)
cm->interp_filter = get_interp_filter(filter_thrs, is_alt_ref);
encode_frame_internal(cpi);
for (i = 0; i < REFERENCE_MODES; ++i)
mode_thrs[i] = (mode_thrs[i] + rd_opt->comp_pred_diff[i] / cm->MBs) / 2;
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
filter_thrs[i] = (filter_thrs[i] + rd_opt->filter_diff[i] / cm->MBs) / 2;
for (i = 0; i < TX_MODES; ++i) {
int64_t pd = rd_opt->tx_select_diff[i];
if (i == TX_MODE_SELECT)
pd -= RDCOST(cpi->mb.rdmult, cpi->mb.rddiv, 2048 * (TX_SIZES - 1), 0);
tx_thrs[i] = (tx_thrs[i] + (int)(pd / cm->MBs)) / 2;
}
if (cm->reference_mode == REFERENCE_MODE_SELECT) {
int single_count_zero = 0;
int comp_count_zero = 0;
for (i = 0; i < COMP_INTER_CONTEXTS; i++) {
single_count_zero += cm->counts.comp_inter[i][0];
comp_count_zero += cm->counts.comp_inter[i][1];
}
if (comp_count_zero == 0) {
cm->reference_mode = SINGLE_REFERENCE;
vp9_zero(cm->counts.comp_inter);
} else if (single_count_zero == 0) {
cm->reference_mode = COMPOUND_REFERENCE;
vp9_zero(cm->counts.comp_inter);
}
}
if (cm->tx_mode == TX_MODE_SELECT) {
int count4x4 = 0;
int count8x8_lp = 0, count8x8_8x8p = 0;
int count16x16_16x16p = 0, count16x16_lp = 0;
int count32x32 = 0;
for (i = 0; i < TX_SIZE_CONTEXTS; ++i) {
count4x4 += cm->counts.tx.p32x32[i][TX_4X4];
count4x4 += cm->counts.tx.p16x16[i][TX_4X4];
count4x4 += cm->counts.tx.p8x8[i][TX_4X4];
count8x8_lp += cm->counts.tx.p32x32[i][TX_8X8];
count8x8_lp += cm->counts.tx.p16x16[i][TX_8X8];
count8x8_8x8p += cm->counts.tx.p8x8[i][TX_8X8];
count16x16_16x16p += cm->counts.tx.p16x16[i][TX_16X16];
count16x16_lp += cm->counts.tx.p32x32[i][TX_16X16];
count32x32 += cm->counts.tx.p32x32[i][TX_32X32];
}
if (count4x4 == 0 && count16x16_lp == 0 && count16x16_16x16p == 0 &&
count32x32 == 0) {
cm->tx_mode = ALLOW_8X8;
reset_skip_tx_size(cm, TX_8X8);
} else if (count8x8_8x8p == 0 && count16x16_16x16p == 0 &&
count8x8_lp == 0 && count16x16_lp == 0 && count32x32 == 0) {
cm->tx_mode = ONLY_4X4;
reset_skip_tx_size(cm, TX_4X4);
} else if (count8x8_lp == 0 && count16x16_lp == 0 && count4x4 == 0) {
cm->tx_mode = ALLOW_32X32;
} else if (count32x32 == 0 && count8x8_lp == 0 && count4x4 == 0) {
cm->tx_mode = ALLOW_16X16;
reset_skip_tx_size(cm, TX_16X16);
}
}
} else {
cm->reference_mode = SINGLE_REFERENCE;
encode_frame_internal(cpi);
}
}
static void sum_intra_stats(FRAME_COUNTS *counts, const MODE_INFO *mi) {
const PREDICTION_MODE y_mode = mi->mbmi.mode;
const PREDICTION_MODE uv_mode = mi->mbmi.uv_mode;
const BLOCK_SIZE bsize = mi->mbmi.sb_type;
if (bsize < BLOCK_8X8) {
int idx, idy;
const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize];
const int num_4x4_h = num_4x4_blocks_high_lookup[bsize];
for (idy = 0; idy < 2; idy += num_4x4_h)
for (idx = 0; idx < 2; idx += num_4x4_w)
++counts->y_mode[0][mi->bmi[idy * 2 + idx].as_mode];
} else {
++counts->y_mode[size_group_lookup[bsize]][y_mode];
}
++counts->uv_mode[y_mode][uv_mode];
}
static int get_zbin_mode_boost(const MB_MODE_INFO *mbmi, int enabled) {
if (enabled) {
if (is_inter_block(mbmi)) {
if (mbmi->mode == ZEROMV) {
return mbmi->ref_frame[0] != LAST_FRAME ? GF_ZEROMV_ZBIN_BOOST
: LF_ZEROMV_ZBIN_BOOST;
} else {
return mbmi->sb_type < BLOCK_8X8 ? SPLIT_MV_ZBIN_BOOST
: MV_ZBIN_BOOST;
}
} else {
return INTRA_ZBIN_BOOST;
}
} else {
return 0;
}
}
static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t, int output_enabled,
int mi_row, int mi_col, BLOCK_SIZE bsize,
PICK_MODE_CONTEXT *ctx) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
MODE_INFO **mi_8x8 = xd->mi;
MODE_INFO *mi = mi_8x8[0];
MB_MODE_INFO *mbmi = &mi->mbmi;
const int seg_skip = vp9_segfeature_active(&cm->seg, mbmi->segment_id,
SEG_LVL_SKIP);
const int mis = cm->mi_stride;
const int mi_width = num_8x8_blocks_wide_lookup[bsize];
const int mi_height = num_8x8_blocks_high_lookup[bsize];
x->skip_recode = !x->select_tx_size && mbmi->sb_type >= BLOCK_8X8 &&
cpi->oxcf.aq_mode != COMPLEXITY_AQ &&
cpi->oxcf.aq_mode != CYCLIC_REFRESH_AQ &&
cpi->sf.allow_skip_recode;
if (!x->skip_recode && !cpi->sf.use_nonrd_pick_mode)
vpx_memset(x->skip_txfm, 0, sizeof(x->skip_txfm));
x->skip_optimize = ctx->is_coded;
ctx->is_coded = 1;
x->use_lp32x32fdct = cpi->sf.use_lp32x32fdct;
x->skip_encode = (!output_enabled && cpi->sf.skip_encode_frame &&
x->q_index < QIDX_SKIP_THRESH);
if (x->skip_encode)
return;
set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]);
// Experimental code. Special case for gf and arf zeromv modes.
// Increase zbin size to suppress noise
cpi->zbin_mode_boost = get_zbin_mode_boost(mbmi,
cpi->zbin_mode_boost_enabled);
vp9_update_zbin_extra(cpi, x);
if (!is_inter_block(mbmi)) {
int plane;
mbmi->skip = 1;
for (plane = 0; plane < MAX_MB_PLANE; ++plane)
vp9_encode_intra_block_plane(x, MAX(bsize, BLOCK_8X8), plane);
if (output_enabled)
sum_intra_stats(&cm->counts, mi);
vp9_tokenize_sb(cpi, t, !output_enabled, MAX(bsize, BLOCK_8X8));
} else {
int ref;
const int is_compound = has_second_ref(mbmi);
for (ref = 0; ref < 1 + is_compound; ++ref) {
YV12_BUFFER_CONFIG *cfg = get_ref_frame_buffer(cpi,
mbmi->ref_frame[ref]);
vp9_setup_pre_planes(xd, ref, cfg, mi_row, mi_col,
&xd->block_refs[ref]->sf);
}
if (!cpi->sf.reuse_inter_pred_sby || seg_skip)
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, MAX(bsize, BLOCK_8X8));
vp9_build_inter_predictors_sbuv(xd, mi_row, mi_col, MAX(bsize, BLOCK_8X8));
if (!x->skip) {
mbmi->skip = 1;
vp9_encode_sb(x, MAX(bsize, BLOCK_8X8));
vp9_tokenize_sb(cpi, t, !output_enabled, MAX(bsize, BLOCK_8X8));
} else {
mbmi->skip = 1;
if (output_enabled && !seg_skip)
cm->counts.skip[vp9_get_skip_context(xd)][1]++;
reset_skip_context(xd, MAX(bsize, BLOCK_8X8));
}
}
if (output_enabled) {
if (cm->tx_mode == TX_MODE_SELECT &&
mbmi->sb_type >= BLOCK_8X8 &&
!(is_inter_block(mbmi) && (mbmi->skip || seg_skip))) {
++get_tx_counts(max_txsize_lookup[bsize], vp9_get_tx_size_context(xd),
&cm->counts.tx)[mbmi->tx_size];
} else {
int x, y;
TX_SIZE tx_size;
// The new intra coding scheme requires no change of transform size
if (is_inter_block(&mi->mbmi)) {
tx_size = MIN(tx_mode_to_biggest_tx_size[cm->tx_mode],
max_txsize_lookup[bsize]);
} else {
tx_size = (bsize >= BLOCK_8X8) ? mbmi->tx_size : TX_4X4;
}
for (y = 0; y < mi_height; y++)
for (x = 0; x < mi_width; x++)
if (mi_col + x < cm->mi_cols && mi_row + y < cm->mi_rows)
mi_8x8[mis * y + x]->mbmi.tx_size = tx_size;
}
}
}
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