ref: 8dcdacc597f7e543a3ebe259b0d9ca9b2e867513
dir: /vp9/encoder/vp9_rdopt.c/
/*
* 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 <assert.h>
#include <math.h>
#include "./vp9_rtcd.h"
#include "vpx_mem/vpx_mem.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_reconinter.h"
#include "vp9/common/vp9_reconintra.h"
#include "vp9/common/vp9_seg_common.h"
#include "vp9/common/vp9_systemdependent.h"
#include "vp9/encoder/vp9_cost.h"
#include "vp9/encoder/vp9_encodemb.h"
#include "vp9/encoder/vp9_encodemv.h"
#include "vp9/encoder/vp9_encoder.h"
#include "vp9/encoder/vp9_mcomp.h"
#include "vp9/encoder/vp9_quantize.h"
#include "vp9/encoder/vp9_ratectrl.h"
#include "vp9/encoder/vp9_rd.h"
#include "vp9/encoder/vp9_rdopt.h"
#include "vp9/encoder/vp9_variance.h"
#define RD_THRESH_MAX_FACT 64
#define RD_THRESH_INC 1
#define LAST_FRAME_MODE_MASK 0xFFEDCD60
#define GOLDEN_FRAME_MODE_MASK 0xFFDA3BB0
#define ALT_REF_MODE_MASK 0xFFC648D0
#define MIN_EARLY_TERM_INDEX 3
typedef struct {
PREDICTION_MODE mode;
MV_REFERENCE_FRAME ref_frame[2];
} MODE_DEFINITION;
typedef struct {
MV_REFERENCE_FRAME ref_frame[2];
} REF_DEFINITION;
struct rdcost_block_args {
MACROBLOCK *x;
ENTROPY_CONTEXT t_above[16];
ENTROPY_CONTEXT t_left[16];
int rate;
int64_t dist;
int64_t sse;
int this_rate;
int64_t this_dist;
int64_t this_sse;
int64_t this_rd;
int64_t best_rd;
int skip;
int use_fast_coef_costing;
const scan_order *so;
};
static const MODE_DEFINITION vp9_mode_order[MAX_MODES] = {
{NEARESTMV, {LAST_FRAME, NONE}},
{NEARESTMV, {ALTREF_FRAME, NONE}},
{NEARESTMV, {GOLDEN_FRAME, NONE}},
{DC_PRED, {INTRA_FRAME, NONE}},
{NEWMV, {LAST_FRAME, NONE}},
{NEWMV, {ALTREF_FRAME, NONE}},
{NEWMV, {GOLDEN_FRAME, NONE}},
{NEARMV, {LAST_FRAME, NONE}},
{NEARMV, {ALTREF_FRAME, NONE}},
{NEARESTMV, {LAST_FRAME, ALTREF_FRAME}},
{NEARESTMV, {GOLDEN_FRAME, ALTREF_FRAME}},
{TM_PRED, {INTRA_FRAME, NONE}},
{NEARMV, {LAST_FRAME, ALTREF_FRAME}},
{NEWMV, {LAST_FRAME, ALTREF_FRAME}},
{NEARMV, {GOLDEN_FRAME, NONE}},
{NEARMV, {GOLDEN_FRAME, ALTREF_FRAME}},
{NEWMV, {GOLDEN_FRAME, ALTREF_FRAME}},
{ZEROMV, {LAST_FRAME, NONE}},
{ZEROMV, {GOLDEN_FRAME, NONE}},
{ZEROMV, {ALTREF_FRAME, NONE}},
{ZEROMV, {LAST_FRAME, ALTREF_FRAME}},
{ZEROMV, {GOLDEN_FRAME, ALTREF_FRAME}},
{H_PRED, {INTRA_FRAME, NONE}},
{V_PRED, {INTRA_FRAME, NONE}},
{D135_PRED, {INTRA_FRAME, NONE}},
{D207_PRED, {INTRA_FRAME, NONE}},
{D153_PRED, {INTRA_FRAME, NONE}},
{D63_PRED, {INTRA_FRAME, NONE}},
{D117_PRED, {INTRA_FRAME, NONE}},
{D45_PRED, {INTRA_FRAME, NONE}},
};
static const REF_DEFINITION vp9_ref_order[MAX_REFS] = {
{{LAST_FRAME, NONE}},
{{GOLDEN_FRAME, NONE}},
{{ALTREF_FRAME, NONE}},
{{LAST_FRAME, ALTREF_FRAME}},
{{GOLDEN_FRAME, ALTREF_FRAME}},
{{INTRA_FRAME, NONE}},
};
static int raster_block_offset(BLOCK_SIZE plane_bsize,
int raster_block, int stride) {
const int bw = b_width_log2(plane_bsize);
const int y = 4 * (raster_block >> bw);
const int x = 4 * (raster_block & ((1 << bw) - 1));
return y * stride + x;
}
static int16_t* raster_block_offset_int16(BLOCK_SIZE plane_bsize,
int raster_block, int16_t *base) {
const int stride = 4 * num_4x4_blocks_wide_lookup[plane_bsize];
return base + raster_block_offset(plane_bsize, raster_block, stride);
}
static void swap_block_ptr(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx,
int m, int n, int min_plane, int max_plane) {
int i;
for (i = min_plane; i < max_plane; ++i) {
struct macroblock_plane *const p = &x->plane[i];
struct macroblockd_plane *const pd = &x->e_mbd.plane[i];
p->coeff = ctx->coeff_pbuf[i][m];
p->qcoeff = ctx->qcoeff_pbuf[i][m];
pd->dqcoeff = ctx->dqcoeff_pbuf[i][m];
p->eobs = ctx->eobs_pbuf[i][m];
ctx->coeff_pbuf[i][m] = ctx->coeff_pbuf[i][n];
ctx->qcoeff_pbuf[i][m] = ctx->qcoeff_pbuf[i][n];
ctx->dqcoeff_pbuf[i][m] = ctx->dqcoeff_pbuf[i][n];
ctx->eobs_pbuf[i][m] = ctx->eobs_pbuf[i][n];
ctx->coeff_pbuf[i][n] = p->coeff;
ctx->qcoeff_pbuf[i][n] = p->qcoeff;
ctx->dqcoeff_pbuf[i][n] = pd->dqcoeff;
ctx->eobs_pbuf[i][n] = p->eobs;
}
}
static void model_rd_for_sb(VP9_COMP *cpi, BLOCK_SIZE bsize,
MACROBLOCK *x, MACROBLOCKD *xd,
int *out_rate_sum, int64_t *out_dist_sum) {
// Note our transform coeffs are 8 times an orthogonal transform.
// Hence quantizer step is also 8 times. To get effective quantizer
// we need to divide by 8 before sending to modeling function.
int i;
int64_t rate_sum = 0;
int64_t dist_sum = 0;
const int ref = xd->mi[0]->mbmi.ref_frame[0];
unsigned int sse;
unsigned int var = 0;
unsigned int sum_sse = 0;
const int shift = 8;
int rate;
int64_t dist;
x->pred_sse[ref] = 0;
for (i = 0; i < MAX_MB_PLANE; ++i) {
struct macroblock_plane *const p = &x->plane[i];
struct macroblockd_plane *const pd = &xd->plane[i];
const BLOCK_SIZE bs = get_plane_block_size(bsize, pd);
const TX_SIZE max_tx_size = max_txsize_lookup[bs];
const BLOCK_SIZE unit_size = txsize_to_bsize[max_tx_size];
int bw = 1 << (b_width_log2_lookup[bs] - b_width_log2_lookup[unit_size]);
int bh = 1 << (b_height_log2_lookup[bs] - b_width_log2_lookup[unit_size]);
int idx, idy;
int lw = b_width_log2_lookup[unit_size] + 2;
int lh = b_height_log2_lookup[unit_size] + 2;
sum_sse = 0;
for (idy = 0; idy < bh; ++idy) {
for (idx = 0; idx < bw; ++idx) {
uint8_t *src = p->src.buf + (idy * p->src.stride << lh) + (idx << lw);
uint8_t *dst = pd->dst.buf + (idy * pd->dst.stride << lh) + (idx << lh);
int block_idx = (idy << 1) + idx;
var = cpi->fn_ptr[unit_size].vf(src, p->src.stride,
dst, pd->dst.stride, &sse);
x->bsse[(i << 2) + block_idx] = sse;
sum_sse += sse;
if (!x->select_tx_size) {
if (x->bsse[(i << 2) + block_idx] < p->quant_thred[0] >> shift)
x->skip_txfm[(i << 2) + block_idx] = 1;
else if (var < p->quant_thred[1] >> shift)
x->skip_txfm[(i << 2) + block_idx] = 2;
else
x->skip_txfm[(i << 2) + block_idx] = 0;
}
if (i == 0)
x->pred_sse[ref] += sse;
}
}
// Fast approximate the modelling function.
if (cpi->oxcf.speed > 4) {
int64_t rate;
int64_t dist;
int64_t square_error = sse;
int quantizer = (pd->dequant[1] >> 3);
if (quantizer < 120)
rate = (square_error * (280 - quantizer)) >> 8;
else
rate = 0;
dist = (square_error * quantizer) >> 8;
rate_sum += rate;
dist_sum += dist;
} else {
vp9_model_rd_from_var_lapndz(sum_sse, 1 << num_pels_log2_lookup[bs],
pd->dequant[1] >> 3, &rate, &dist);
rate_sum += rate;
dist_sum += dist;
}
}
*out_rate_sum = (int)rate_sum;
*out_dist_sum = dist_sum << 4;
}
int64_t vp9_block_error_c(const int16_t *coeff, const int16_t *dqcoeff,
intptr_t block_size, int64_t *ssz) {
int i;
int64_t error = 0, sqcoeff = 0;
for (i = 0; i < block_size; i++) {
const int diff = coeff[i] - dqcoeff[i];
error += diff * diff;
sqcoeff += coeff[i] * coeff[i];
}
*ssz = sqcoeff;
return error;
}
/* The trailing '0' is a terminator which is used inside cost_coeffs() to
* decide whether to include cost of a trailing EOB node or not (i.e. we
* can skip this if the last coefficient in this transform block, e.g. the
* 16th coefficient in a 4x4 block or the 64th coefficient in a 8x8 block,
* were non-zero). */
static const int16_t band_counts[TX_SIZES][8] = {
{ 1, 2, 3, 4, 3, 16 - 13, 0 },
{ 1, 2, 3, 4, 11, 64 - 21, 0 },
{ 1, 2, 3, 4, 11, 256 - 21, 0 },
{ 1, 2, 3, 4, 11, 1024 - 21, 0 },
};
static INLINE int cost_coeffs(MACROBLOCK *x,
int plane, int block,
ENTROPY_CONTEXT *A, ENTROPY_CONTEXT *L,
TX_SIZE tx_size,
const int16_t *scan, const int16_t *nb,
int use_fast_coef_costing) {
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
const struct macroblock_plane *p = &x->plane[plane];
const struct macroblockd_plane *pd = &xd->plane[plane];
const PLANE_TYPE type = pd->plane_type;
const int16_t *band_count = &band_counts[tx_size][1];
const int eob = p->eobs[block];
const int16_t *const qcoeff = BLOCK_OFFSET(p->qcoeff, block);
unsigned int (*token_costs)[2][COEFF_CONTEXTS][ENTROPY_TOKENS] =
x->token_costs[tx_size][type][is_inter_block(mbmi)];
uint8_t token_cache[32 * 32];
int pt = combine_entropy_contexts(*A, *L);
int c, cost;
// Check for consistency of tx_size with mode info
assert(type == PLANE_TYPE_Y ? mbmi->tx_size == tx_size
: get_uv_tx_size(mbmi, pd) == tx_size);
if (eob == 0) {
// single eob token
cost = token_costs[0][0][pt][EOB_TOKEN];
c = 0;
} else {
int band_left = *band_count++;
// dc token
int v = qcoeff[0];
int prev_t = vp9_dct_value_tokens_ptr[v].token;
cost = (*token_costs)[0][pt][prev_t] + vp9_dct_value_cost_ptr[v];
token_cache[0] = vp9_pt_energy_class[prev_t];
++token_costs;
// ac tokens
for (c = 1; c < eob; c++) {
const int rc = scan[c];
int t;
v = qcoeff[rc];
t = vp9_dct_value_tokens_ptr[v].token;
if (use_fast_coef_costing) {
cost += (*token_costs)[!prev_t][!prev_t][t] + vp9_dct_value_cost_ptr[v];
} else {
pt = get_coef_context(nb, token_cache, c);
cost += (*token_costs)[!prev_t][pt][t] + vp9_dct_value_cost_ptr[v];
token_cache[rc] = vp9_pt_energy_class[t];
}
prev_t = t;
if (!--band_left) {
band_left = *band_count++;
++token_costs;
}
}
// eob token
if (band_left) {
if (use_fast_coef_costing) {
cost += (*token_costs)[0][!prev_t][EOB_TOKEN];
} else {
pt = get_coef_context(nb, token_cache, c);
cost += (*token_costs)[0][pt][EOB_TOKEN];
}
}
}
// is eob first coefficient;
*A = *L = (c > 0);
return cost;
}
static void dist_block(int plane, int block, TX_SIZE tx_size,
struct rdcost_block_args* args) {
const int ss_txfrm_size = tx_size << 1;
MACROBLOCK* const x = args->x;
MACROBLOCKD* const xd = &x->e_mbd;
const struct macroblock_plane *const p = &x->plane[plane];
const struct macroblockd_plane *const pd = &xd->plane[plane];
int64_t this_sse;
int shift = tx_size == TX_32X32 ? 0 : 2;
int16_t *const coeff = BLOCK_OFFSET(p->coeff, block);
int16_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block);
args->dist = vp9_block_error(coeff, dqcoeff, 16 << ss_txfrm_size,
&this_sse) >> shift;
args->sse = this_sse >> shift;
if (x->skip_encode && !is_inter_block(&xd->mi[0]->mbmi)) {
// TODO(jingning): tune the model to better capture the distortion.
int64_t p = (pd->dequant[1] * pd->dequant[1] *
(1 << ss_txfrm_size)) >> (shift + 2);
args->dist += (p >> 4);
args->sse += p;
}
}
static void rate_block(int plane, int block, BLOCK_SIZE plane_bsize,
TX_SIZE tx_size, struct rdcost_block_args* args) {
int x_idx, y_idx;
txfrm_block_to_raster_xy(plane_bsize, tx_size, block, &x_idx, &y_idx);
args->rate = cost_coeffs(args->x, plane, block, args->t_above + x_idx,
args->t_left + y_idx, tx_size,
args->so->scan, args->so->neighbors,
args->use_fast_coef_costing);
}
static void block_rd_txfm(int plane, int block, BLOCK_SIZE plane_bsize,
TX_SIZE tx_size, void *arg) {
struct rdcost_block_args *args = arg;
MACROBLOCK *const x = args->x;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
int64_t rd1, rd2, rd;
if (args->skip)
return;
if (!is_inter_block(mbmi)) {
vp9_encode_block_intra(x, plane, block, plane_bsize, tx_size, &mbmi->skip);
dist_block(plane, block, tx_size, args);
} else if (max_txsize_lookup[plane_bsize] == tx_size) {
if (x->skip_txfm[(plane << 2) + (block >> (tx_size << 1))] == 0) {
// full forward transform and quantization
vp9_xform_quant(x, plane, block, plane_bsize, tx_size);
dist_block(plane, block, tx_size, args);
} else if (x->skip_txfm[(plane << 2) + (block >> (tx_size << 1))] == 2) {
// compute DC coefficient
int16_t *const coeff = BLOCK_OFFSET(x->plane[plane].coeff, block);
int16_t *const dqcoeff = BLOCK_OFFSET(xd->plane[plane].dqcoeff, block);
vp9_xform_quant_dc(x, plane, block, plane_bsize, tx_size);
args->sse = x->bsse[(plane << 2) + (block >> (tx_size << 1))] << 4;
args->dist = args->sse;
if (!x->plane[plane].eobs[block])
args->dist = args->sse - ((coeff[0] * coeff[0] -
(coeff[0] - dqcoeff[0]) * (coeff[0] - dqcoeff[0])) >> 2);
} else {
// skip forward transform
x->plane[plane].eobs[block] = 0;
args->sse = x->bsse[(plane << 2) + (block >> (tx_size << 1))] << 4;
args->dist = args->sse;
}
} else {
// full forward transform and quantization
vp9_xform_quant(x, plane, block, plane_bsize, tx_size);
dist_block(plane, block, tx_size, args);
}
rate_block(plane, block, plane_bsize, tx_size, args);
rd1 = RDCOST(x->rdmult, x->rddiv, args->rate, args->dist);
rd2 = RDCOST(x->rdmult, x->rddiv, 0, args->sse);
// TODO(jingning): temporarily enabled only for luma component
rd = MIN(rd1, rd2);
if (plane == 0)
x->zcoeff_blk[tx_size][block] = !x->plane[plane].eobs[block] ||
(rd1 > rd2 && !xd->lossless);
args->this_rate += args->rate;
args->this_dist += args->dist;
args->this_sse += args->sse;
args->this_rd += rd;
if (args->this_rd > args->best_rd) {
args->skip = 1;
return;
}
}
static void txfm_rd_in_plane(MACROBLOCK *x,
int *rate, int64_t *distortion,
int *skippable, int64_t *sse,
int64_t ref_best_rd, int plane,
BLOCK_SIZE bsize, TX_SIZE tx_size,
int use_fast_coef_casting) {
MACROBLOCKD *const xd = &x->e_mbd;
const struct macroblockd_plane *const pd = &xd->plane[plane];
struct rdcost_block_args args;
vp9_zero(args);
args.x = x;
args.best_rd = ref_best_rd;
args.use_fast_coef_costing = use_fast_coef_casting;
if (plane == 0)
xd->mi[0]->mbmi.tx_size = tx_size;
vp9_get_entropy_contexts(bsize, tx_size, pd, args.t_above, args.t_left);
args.so = get_scan(xd, tx_size, pd->plane_type, 0);
vp9_foreach_transformed_block_in_plane(xd, bsize, plane,
block_rd_txfm, &args);
if (args.skip) {
*rate = INT_MAX;
*distortion = INT64_MAX;
*sse = INT64_MAX;
*skippable = 0;
} else {
*distortion = args.this_dist;
*rate = args.this_rate;
*sse = args.this_sse;
*skippable = vp9_is_skippable_in_plane(x, bsize, plane);
}
}
static void choose_largest_tx_size(VP9_COMP *cpi, MACROBLOCK *x,
int *rate, int64_t *distortion,
int *skip, int64_t *sse,
int64_t ref_best_rd,
BLOCK_SIZE bs) {
const TX_SIZE max_tx_size = max_txsize_lookup[bs];
VP9_COMMON *const cm = &cpi->common;
const TX_SIZE largest_tx_size = tx_mode_to_biggest_tx_size[cm->tx_mode];
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
mbmi->tx_size = MIN(max_tx_size, largest_tx_size);
txfm_rd_in_plane(x, rate, distortion, skip,
sse, ref_best_rd, 0, bs,
mbmi->tx_size, cpi->sf.use_fast_coef_costing);
}
static void choose_tx_size_from_rd(VP9_COMP *cpi, MACROBLOCK *x,
int *rate,
int64_t *distortion,
int *skip,
int64_t *psse,
int64_t tx_cache[TX_MODES],
int64_t ref_best_rd,
BLOCK_SIZE bs) {
const TX_SIZE max_tx_size = max_txsize_lookup[bs];
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
vp9_prob skip_prob = vp9_get_skip_prob(cm, xd);
int r[TX_SIZES][2], s[TX_SIZES];
int64_t d[TX_SIZES], sse[TX_SIZES];
int64_t rd[TX_SIZES][2] = {{INT64_MAX, INT64_MAX},
{INT64_MAX, INT64_MAX},
{INT64_MAX, INT64_MAX},
{INT64_MAX, INT64_MAX}};
int n, m;
int s0, s1;
const TX_SIZE max_mode_tx_size = tx_mode_to_biggest_tx_size[cm->tx_mode];
int64_t best_rd = INT64_MAX;
TX_SIZE best_tx = max_tx_size;
const vp9_prob *tx_probs = get_tx_probs2(max_tx_size, xd, &cm->fc.tx_probs);
assert(skip_prob > 0);
s0 = vp9_cost_bit(skip_prob, 0);
s1 = vp9_cost_bit(skip_prob, 1);
for (n = max_tx_size; n >= 0; n--) {
txfm_rd_in_plane(x, &r[n][0], &d[n], &s[n],
&sse[n], ref_best_rd, 0, bs, n,
cpi->sf.use_fast_coef_costing);
r[n][1] = r[n][0];
if (r[n][0] < INT_MAX) {
for (m = 0; m <= n - (n == (int) max_tx_size); m++) {
if (m == n)
r[n][1] += vp9_cost_zero(tx_probs[m]);
else
r[n][1] += vp9_cost_one(tx_probs[m]);
}
}
if (d[n] == INT64_MAX) {
rd[n][0] = rd[n][1] = INT64_MAX;
} else if (s[n]) {
rd[n][0] = rd[n][1] = RDCOST(x->rdmult, x->rddiv, s1, d[n]);
} else {
rd[n][0] = RDCOST(x->rdmult, x->rddiv, r[n][0] + s0, d[n]);
rd[n][1] = RDCOST(x->rdmult, x->rddiv, r[n][1] + s0, d[n]);
}
// Early termination in transform size search.
if (cpi->sf.tx_size_search_breakout &&
(rd[n][1] == INT64_MAX ||
(n < (int) max_tx_size && rd[n][1] > rd[n + 1][1]) ||
s[n] == 1))
break;
if (rd[n][1] < best_rd) {
best_tx = n;
best_rd = rd[n][1];
}
}
mbmi->tx_size = cm->tx_mode == TX_MODE_SELECT ?
best_tx : MIN(max_tx_size, max_mode_tx_size);
*distortion = d[mbmi->tx_size];
*rate = r[mbmi->tx_size][cm->tx_mode == TX_MODE_SELECT];
*skip = s[mbmi->tx_size];
*psse = sse[mbmi->tx_size];
tx_cache[ONLY_4X4] = rd[TX_4X4][0];
tx_cache[ALLOW_8X8] = rd[TX_8X8][0];
tx_cache[ALLOW_16X16] = rd[MIN(max_tx_size, TX_16X16)][0];
tx_cache[ALLOW_32X32] = rd[MIN(max_tx_size, TX_32X32)][0];
if (max_tx_size == TX_32X32 && best_tx == TX_32X32) {
tx_cache[TX_MODE_SELECT] = rd[TX_32X32][1];
} else if (max_tx_size >= TX_16X16 && best_tx == TX_16X16) {
tx_cache[TX_MODE_SELECT] = rd[TX_16X16][1];
} else if (rd[TX_8X8][1] < rd[TX_4X4][1]) {
tx_cache[TX_MODE_SELECT] = rd[TX_8X8][1];
} else {
tx_cache[TX_MODE_SELECT] = rd[TX_4X4][1];
}
}
static void super_block_yrd(VP9_COMP *cpi, MACROBLOCK *x, int *rate,
int64_t *distortion, int *skip,
int64_t *psse, BLOCK_SIZE bs,
int64_t txfm_cache[TX_MODES],
int64_t ref_best_rd) {
MACROBLOCKD *xd = &x->e_mbd;
int64_t sse;
int64_t *ret_sse = psse ? psse : &sse;
assert(bs == xd->mi[0]->mbmi.sb_type);
if (cpi->sf.tx_size_search_method == USE_LARGESTALL || xd->lossless) {
vpx_memset(txfm_cache, 0, TX_MODES * sizeof(int64_t));
choose_largest_tx_size(cpi, x, rate, distortion, skip, ret_sse, ref_best_rd,
bs);
} else {
choose_tx_size_from_rd(cpi, x, rate, distortion, skip, ret_sse,
txfm_cache, ref_best_rd, bs);
}
}
static int conditional_skipintra(PREDICTION_MODE mode,
PREDICTION_MODE best_intra_mode) {
if (mode == D117_PRED &&
best_intra_mode != V_PRED &&
best_intra_mode != D135_PRED)
return 1;
if (mode == D63_PRED &&
best_intra_mode != V_PRED &&
best_intra_mode != D45_PRED)
return 1;
if (mode == D207_PRED &&
best_intra_mode != H_PRED &&
best_intra_mode != D45_PRED)
return 1;
if (mode == D153_PRED &&
best_intra_mode != H_PRED &&
best_intra_mode != D135_PRED)
return 1;
return 0;
}
static int64_t rd_pick_intra4x4block(VP9_COMP *cpi, MACROBLOCK *x, int ib,
PREDICTION_MODE *best_mode,
const int *bmode_costs,
ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l,
int *bestrate, int *bestratey,
int64_t *bestdistortion,
BLOCK_SIZE bsize, int64_t rd_thresh) {
PREDICTION_MODE mode;
MACROBLOCKD *const xd = &x->e_mbd;
int64_t best_rd = rd_thresh;
struct macroblock_plane *p = &x->plane[0];
struct macroblockd_plane *pd = &xd->plane[0];
const int src_stride = p->src.stride;
const int dst_stride = pd->dst.stride;
const uint8_t *src_init = &p->src.buf[raster_block_offset(BLOCK_8X8, ib,
src_stride)];
uint8_t *dst_init = &pd->dst.buf[raster_block_offset(BLOCK_8X8, ib,
dst_stride)];
ENTROPY_CONTEXT ta[2], tempa[2];
ENTROPY_CONTEXT tl[2], templ[2];
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 idx, idy;
uint8_t best_dst[8 * 8];
assert(ib < 4);
vpx_memcpy(ta, a, sizeof(ta));
vpx_memcpy(tl, l, sizeof(tl));
xd->mi[0]->mbmi.tx_size = TX_4X4;
for (mode = DC_PRED; mode <= TM_PRED; ++mode) {
int64_t this_rd;
int ratey = 0;
int64_t distortion = 0;
int rate = bmode_costs[mode];
if (!(cpi->sf.intra_y_mode_mask[TX_4X4] & (1 << mode)))
continue;
// Only do the oblique modes if the best so far is
// one of the neighboring directional modes
if (cpi->sf.mode_search_skip_flags & FLAG_SKIP_INTRA_DIRMISMATCH) {
if (conditional_skipintra(mode, *best_mode))
continue;
}
vpx_memcpy(tempa, ta, sizeof(ta));
vpx_memcpy(templ, tl, sizeof(tl));
for (idy = 0; idy < num_4x4_blocks_high; ++idy) {
for (idx = 0; idx < num_4x4_blocks_wide; ++idx) {
const int block = ib + idy * 2 + idx;
const uint8_t *const src = &src_init[idx * 4 + idy * 4 * src_stride];
uint8_t *const dst = &dst_init[idx * 4 + idy * 4 * dst_stride];
int16_t *const src_diff = raster_block_offset_int16(BLOCK_8X8, block,
p->src_diff);
int16_t *const coeff = BLOCK_OFFSET(x->plane[0].coeff, block);
xd->mi[0]->bmi[block].as_mode = mode;
vp9_predict_intra_block(xd, block, 1,
TX_4X4, mode,
x->skip_encode ? src : dst,
x->skip_encode ? src_stride : dst_stride,
dst, dst_stride, idx, idy, 0);
vp9_subtract_block(4, 4, src_diff, 8, src, src_stride, dst, dst_stride);
if (xd->lossless) {
const scan_order *so = &vp9_default_scan_orders[TX_4X4];
vp9_fwht4x4(src_diff, coeff, 8);
vp9_regular_quantize_b_4x4(x, 0, block, so->scan, so->iscan);
ratey += cost_coeffs(x, 0, block, tempa + idx, templ + idy, TX_4X4,
so->scan, so->neighbors,
cpi->sf.use_fast_coef_costing);
if (RDCOST(x->rdmult, x->rddiv, ratey, distortion) >= best_rd)
goto next;
vp9_iwht4x4_add(BLOCK_OFFSET(pd->dqcoeff, block), dst, dst_stride,
p->eobs[block]);
} else {
int64_t unused;
const TX_TYPE tx_type = get_tx_type_4x4(PLANE_TYPE_Y, xd, block);
const scan_order *so = &vp9_scan_orders[TX_4X4][tx_type];
vp9_fht4x4(src_diff, coeff, 8, tx_type);
vp9_regular_quantize_b_4x4(x, 0, block, so->scan, so->iscan);
ratey += cost_coeffs(x, 0, block, tempa + idx, templ + idy, TX_4X4,
so->scan, so->neighbors,
cpi->sf.use_fast_coef_costing);
distortion += vp9_block_error(coeff, BLOCK_OFFSET(pd->dqcoeff, block),
16, &unused) >> 2;
if (RDCOST(x->rdmult, x->rddiv, ratey, distortion) >= best_rd)
goto next;
vp9_iht4x4_add(tx_type, BLOCK_OFFSET(pd->dqcoeff, block),
dst, dst_stride, p->eobs[block]);
}
}
}
rate += ratey;
this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
if (this_rd < best_rd) {
*bestrate = rate;
*bestratey = ratey;
*bestdistortion = distortion;
best_rd = this_rd;
*best_mode = mode;
vpx_memcpy(a, tempa, sizeof(tempa));
vpx_memcpy(l, templ, sizeof(templ));
for (idy = 0; idy < num_4x4_blocks_high * 4; ++idy)
vpx_memcpy(best_dst + idy * 8, dst_init + idy * dst_stride,
num_4x4_blocks_wide * 4);
}
next:
{}
}
if (best_rd >= rd_thresh || x->skip_encode)
return best_rd;
for (idy = 0; idy < num_4x4_blocks_high * 4; ++idy)
vpx_memcpy(dst_init + idy * dst_stride, best_dst + idy * 8,
num_4x4_blocks_wide * 4);
return best_rd;
}
static int64_t rd_pick_intra_sub_8x8_y_mode(VP9_COMP *cpi, MACROBLOCK *mb,
int *rate, int *rate_y,
int64_t *distortion,
int64_t best_rd) {
int i, j;
const MACROBLOCKD *const xd = &mb->e_mbd;
MODE_INFO *const mic = xd->mi[0];
const MODE_INFO *above_mi = xd->mi[-xd->mi_stride];
const MODE_INFO *left_mi = xd->left_available ? xd->mi[-1] : NULL;
const BLOCK_SIZE bsize = xd->mi[0]->mbmi.sb_type;
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 idx, idy;
int cost = 0;
int64_t total_distortion = 0;
int tot_rate_y = 0;
int64_t total_rd = 0;
ENTROPY_CONTEXT t_above[4], t_left[4];
const int *bmode_costs = cpi->mbmode_cost;
vpx_memcpy(t_above, xd->plane[0].above_context, sizeof(t_above));
vpx_memcpy(t_left, xd->plane[0].left_context, sizeof(t_left));
// Pick modes for each sub-block (of size 4x4, 4x8, or 8x4) in an 8x8 block.
for (idy = 0; idy < 2; idy += num_4x4_blocks_high) {
for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) {
PREDICTION_MODE best_mode = DC_PRED;
int r = INT_MAX, ry = INT_MAX;
int64_t d = INT64_MAX, this_rd = INT64_MAX;
i = idy * 2 + idx;
if (cpi->common.frame_type == KEY_FRAME) {
const PREDICTION_MODE A = vp9_above_block_mode(mic, above_mi, i);
const PREDICTION_MODE L = vp9_left_block_mode(mic, left_mi, i);
bmode_costs = cpi->y_mode_costs[A][L];
}
this_rd = rd_pick_intra4x4block(cpi, mb, i, &best_mode, bmode_costs,
t_above + idx, t_left + idy, &r, &ry, &d,
bsize, best_rd - total_rd);
if (this_rd >= best_rd - total_rd)
return INT64_MAX;
total_rd += this_rd;
cost += r;
total_distortion += d;
tot_rate_y += ry;
mic->bmi[i].as_mode = best_mode;
for (j = 1; j < num_4x4_blocks_high; ++j)
mic->bmi[i + j * 2].as_mode = best_mode;
for (j = 1; j < num_4x4_blocks_wide; ++j)
mic->bmi[i + j].as_mode = best_mode;
if (total_rd >= best_rd)
return INT64_MAX;
}
}
*rate = cost;
*rate_y = tot_rate_y;
*distortion = total_distortion;
mic->mbmi.mode = mic->bmi[3].as_mode;
return RDCOST(mb->rdmult, mb->rddiv, cost, total_distortion);
}
static int64_t rd_pick_intra_sby_mode(VP9_COMP *cpi, MACROBLOCK *x,
int *rate, int *rate_tokenonly,
int64_t *distortion, int *skippable,
BLOCK_SIZE bsize,
int64_t tx_cache[TX_MODES],
int64_t best_rd) {
PREDICTION_MODE mode;
PREDICTION_MODE mode_selected = DC_PRED;
MACROBLOCKD *const xd = &x->e_mbd;
MODE_INFO *const mic = xd->mi[0];
int this_rate, this_rate_tokenonly, s;
int64_t this_distortion, this_rd;
TX_SIZE best_tx = TX_4X4;
int i;
int *bmode_costs = cpi->mbmode_cost;
if (cpi->sf.tx_size_search_method == USE_FULL_RD)
for (i = 0; i < TX_MODES; i++)
tx_cache[i] = INT64_MAX;
/* Y Search for intra prediction mode */
for (mode = DC_PRED; mode <= TM_PRED; mode++) {
int64_t local_tx_cache[TX_MODES];
MODE_INFO *above_mi = xd->mi[-xd->mi_stride];
MODE_INFO *left_mi = xd->left_available ? xd->mi[-1] : NULL;
if (cpi->common.frame_type == KEY_FRAME) {
const PREDICTION_MODE A = vp9_above_block_mode(mic, above_mi, 0);
const PREDICTION_MODE L = vp9_left_block_mode(mic, left_mi, 0);
bmode_costs = cpi->y_mode_costs[A][L];
}
mic->mbmi.mode = mode;
super_block_yrd(cpi, x, &this_rate_tokenonly, &this_distortion,
&s, NULL, bsize, local_tx_cache, best_rd);
if (this_rate_tokenonly == INT_MAX)
continue;
this_rate = this_rate_tokenonly + bmode_costs[mode];
this_rd = RDCOST(x->rdmult, x->rddiv, this_rate, this_distortion);
if (this_rd < best_rd) {
mode_selected = mode;
best_rd = this_rd;
best_tx = mic->mbmi.tx_size;
*rate = this_rate;
*rate_tokenonly = this_rate_tokenonly;
*distortion = this_distortion;
*skippable = s;
}
if (cpi->sf.tx_size_search_method == USE_FULL_RD && this_rd < INT64_MAX) {
for (i = 0; i < TX_MODES && local_tx_cache[i] < INT64_MAX; i++) {
const int64_t adj_rd = this_rd + local_tx_cache[i] -
local_tx_cache[cpi->common.tx_mode];
if (adj_rd < tx_cache[i]) {
tx_cache[i] = adj_rd;
}
}
}
}
mic->mbmi.mode = mode_selected;
mic->mbmi.tx_size = best_tx;
return best_rd;
}
static void super_block_uvrd(const VP9_COMP *cpi, MACROBLOCK *x,
int *rate, int64_t *distortion, int *skippable,
int64_t *sse, BLOCK_SIZE bsize,
int64_t ref_best_rd) {
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
const TX_SIZE uv_tx_size = get_uv_tx_size(mbmi, &xd->plane[1]);
int plane;
int pnrate = 0, pnskip = 1;
int64_t pndist = 0, pnsse = 0;
if (ref_best_rd < 0)
goto term;
if (is_inter_block(mbmi)) {
int plane;
for (plane = 1; plane < MAX_MB_PLANE; ++plane)
vp9_subtract_plane(x, bsize, plane);
}
*rate = 0;
*distortion = 0;
*sse = 0;
*skippable = 1;
for (plane = 1; plane < MAX_MB_PLANE; ++plane) {
txfm_rd_in_plane(x, &pnrate, &pndist, &pnskip, &pnsse,
ref_best_rd, plane, bsize, uv_tx_size,
cpi->sf.use_fast_coef_costing);
if (pnrate == INT_MAX)
goto term;
*rate += pnrate;
*distortion += pndist;
*sse += pnsse;
*skippable &= pnskip;
}
return;
term:
*rate = INT_MAX;
*distortion = INT64_MAX;
*sse = INT64_MAX;
*skippable = 0;
return;
}
static int64_t rd_pick_intra_sbuv_mode(VP9_COMP *cpi, MACROBLOCK *x,
PICK_MODE_CONTEXT *ctx,
int *rate, int *rate_tokenonly,
int64_t *distortion, int *skippable,
BLOCK_SIZE bsize, TX_SIZE max_tx_size) {
MACROBLOCKD *xd = &x->e_mbd;
PREDICTION_MODE mode;
PREDICTION_MODE mode_selected = DC_PRED;
int64_t best_rd = INT64_MAX, this_rd;
int this_rate_tokenonly, this_rate, s;
int64_t this_distortion, this_sse;
for (mode = DC_PRED; mode <= TM_PRED; ++mode) {
if (!(cpi->sf.intra_uv_mode_mask[max_tx_size] & (1 << mode)))
continue;
xd->mi[0]->mbmi.uv_mode = mode;
super_block_uvrd(cpi, x, &this_rate_tokenonly,
&this_distortion, &s, &this_sse, bsize, best_rd);
if (this_rate_tokenonly == INT_MAX)
continue;
this_rate = this_rate_tokenonly +
cpi->intra_uv_mode_cost[cpi->common.frame_type][mode];
this_rd = RDCOST(x->rdmult, x->rddiv, this_rate, this_distortion);
if (this_rd < best_rd) {
mode_selected = mode;
best_rd = this_rd;
*rate = this_rate;
*rate_tokenonly = this_rate_tokenonly;
*distortion = this_distortion;
*skippable = s;
if (!x->select_tx_size)
swap_block_ptr(x, ctx, 2, 0, 1, MAX_MB_PLANE);
}
}
xd->mi[0]->mbmi.uv_mode = mode_selected;
return best_rd;
}
static int64_t rd_sbuv_dcpred(const VP9_COMP *cpi, MACROBLOCK *x,
int *rate, int *rate_tokenonly,
int64_t *distortion, int *skippable,
BLOCK_SIZE bsize) {
const VP9_COMMON *cm = &cpi->common;
int64_t unused;
x->e_mbd.mi[0]->mbmi.uv_mode = DC_PRED;
super_block_uvrd(cpi, x, rate_tokenonly, distortion,
skippable, &unused, bsize, INT64_MAX);
*rate = *rate_tokenonly + cpi->intra_uv_mode_cost[cm->frame_type][DC_PRED];
return RDCOST(x->rdmult, x->rddiv, *rate, *distortion);
}
static void choose_intra_uv_mode(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
BLOCK_SIZE bsize, TX_SIZE max_tx_size,
int *rate_uv, int *rate_uv_tokenonly,
int64_t *dist_uv, int *skip_uv,
PREDICTION_MODE *mode_uv) {
MACROBLOCK *const x = &cpi->mb;
// Use an estimated rd for uv_intra based on DC_PRED if the
// appropriate speed flag is set.
if (cpi->sf.use_uv_intra_rd_estimate) {
rd_sbuv_dcpred(cpi, x, rate_uv, rate_uv_tokenonly, dist_uv,
skip_uv, bsize < BLOCK_8X8 ? BLOCK_8X8 : bsize);
// Else do a proper rd search for each possible transform size that may
// be considered in the main rd loop.
} else {
rd_pick_intra_sbuv_mode(cpi, x, ctx,
rate_uv, rate_uv_tokenonly, dist_uv, skip_uv,
bsize < BLOCK_8X8 ? BLOCK_8X8 : bsize, max_tx_size);
}
*mode_uv = x->e_mbd.mi[0]->mbmi.uv_mode;
}
static int cost_mv_ref(const VP9_COMP *cpi, PREDICTION_MODE mode,
int mode_context) {
assert(is_inter_mode(mode));
return cpi->inter_mode_cost[mode_context][INTER_OFFSET(mode)];
}
static void joint_motion_search(VP9_COMP *cpi, MACROBLOCK *x,
BLOCK_SIZE bsize,
int_mv *frame_mv,
int mi_row, int mi_col,
int_mv single_newmv[MAX_REF_FRAMES],
int *rate_mv);
static int set_and_cost_bmi_mvs(VP9_COMP *cpi, MACROBLOCKD *xd, int i,
PREDICTION_MODE mode, int_mv this_mv[2],
int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES],
int_mv seg_mvs[MAX_REF_FRAMES],
int_mv *best_ref_mv[2], const int *mvjcost,
int *mvcost[2]) {
MODE_INFO *const mic = xd->mi[0];
const MB_MODE_INFO *const mbmi = &mic->mbmi;
int thismvcost = 0;
int idx, idy;
const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[mbmi->sb_type];
const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[mbmi->sb_type];
const int is_compound = has_second_ref(mbmi);
switch (mode) {
case NEWMV:
this_mv[0].as_int = seg_mvs[mbmi->ref_frame[0]].as_int;
thismvcost += vp9_mv_bit_cost(&this_mv[0].as_mv, &best_ref_mv[0]->as_mv,
mvjcost, mvcost, MV_COST_WEIGHT_SUB);
if (is_compound) {
this_mv[1].as_int = seg_mvs[mbmi->ref_frame[1]].as_int;
thismvcost += vp9_mv_bit_cost(&this_mv[1].as_mv, &best_ref_mv[1]->as_mv,
mvjcost, mvcost, MV_COST_WEIGHT_SUB);
}
break;
case NEARMV:
case NEARESTMV:
this_mv[0].as_int = frame_mv[mode][mbmi->ref_frame[0]].as_int;
if (is_compound)
this_mv[1].as_int = frame_mv[mode][mbmi->ref_frame[1]].as_int;
break;
case ZEROMV:
this_mv[0].as_int = 0;
if (is_compound)
this_mv[1].as_int = 0;
break;
default:
break;
}
mic->bmi[i].as_mv[0].as_int = this_mv[0].as_int;
if (is_compound)
mic->bmi[i].as_mv[1].as_int = this_mv[1].as_int;
mic->bmi[i].as_mode = mode;
for (idy = 0; idy < num_4x4_blocks_high; ++idy)
for (idx = 0; idx < num_4x4_blocks_wide; ++idx)
vpx_memcpy(&mic->bmi[i + idy * 2 + idx],
&mic->bmi[i], sizeof(mic->bmi[i]));
return cost_mv_ref(cpi, mode, mbmi->mode_context[mbmi->ref_frame[0]]) +
thismvcost;
}
static int64_t encode_inter_mb_segment(VP9_COMP *cpi,
MACROBLOCK *x,
int64_t best_yrd,
int i,
int *labelyrate,
int64_t *distortion, int64_t *sse,
ENTROPY_CONTEXT *ta,
ENTROPY_CONTEXT *tl,
int mi_row, int mi_col) {
int k;
MACROBLOCKD *xd = &x->e_mbd;
struct macroblockd_plane *const pd = &xd->plane[0];
struct macroblock_plane *const p = &x->plane[0];
MODE_INFO *const mi = xd->mi[0];
const BLOCK_SIZE plane_bsize = get_plane_block_size(mi->mbmi.sb_type, pd);
const int width = 4 * num_4x4_blocks_wide_lookup[plane_bsize];
const int height = 4 * num_4x4_blocks_high_lookup[plane_bsize];
int idx, idy;
const uint8_t *const src = &p->src.buf[raster_block_offset(BLOCK_8X8, i,
p->src.stride)];
uint8_t *const dst = &pd->dst.buf[raster_block_offset(BLOCK_8X8, i,
pd->dst.stride)];
int64_t thisdistortion = 0, thissse = 0;
int thisrate = 0, ref;
const scan_order *so = &vp9_default_scan_orders[TX_4X4];
const int is_compound = has_second_ref(&mi->mbmi);
const InterpKernel *kernel = vp9_get_interp_kernel(mi->mbmi.interp_filter);
for (ref = 0; ref < 1 + is_compound; ++ref) {
const uint8_t *pre = &pd->pre[ref].buf[raster_block_offset(BLOCK_8X8, i,
pd->pre[ref].stride)];
vp9_build_inter_predictor(pre, pd->pre[ref].stride,
dst, pd->dst.stride,
&mi->bmi[i].as_mv[ref].as_mv,
&xd->block_refs[ref]->sf, width, height, ref,
kernel, MV_PRECISION_Q3,
mi_col * MI_SIZE + 4 * (i % 2),
mi_row * MI_SIZE + 4 * (i / 2));
}
vp9_subtract_block(height, width,
raster_block_offset_int16(BLOCK_8X8, i, p->src_diff), 8,
src, p->src.stride,
dst, pd->dst.stride);
k = i;
for (idy = 0; idy < height / 4; ++idy) {
for (idx = 0; idx < width / 4; ++idx) {
int64_t ssz, rd, rd1, rd2;
int16_t* coeff;
k += (idy * 2 + idx);
coeff = BLOCK_OFFSET(p->coeff, k);
x->fwd_txm4x4(raster_block_offset_int16(BLOCK_8X8, k, p->src_diff),
coeff, 8);
vp9_regular_quantize_b_4x4(x, 0, k, so->scan, so->iscan);
thisdistortion += vp9_block_error(coeff, BLOCK_OFFSET(pd->dqcoeff, k),
16, &ssz);
thissse += ssz;
thisrate += cost_coeffs(x, 0, k, ta + (k & 1), tl + (k >> 1), TX_4X4,
so->scan, so->neighbors,
cpi->sf.use_fast_coef_costing);
rd1 = RDCOST(x->rdmult, x->rddiv, thisrate, thisdistortion >> 2);
rd2 = RDCOST(x->rdmult, x->rddiv, 0, thissse >> 2);
rd = MIN(rd1, rd2);
if (rd >= best_yrd)
return INT64_MAX;
}
}
*distortion = thisdistortion >> 2;
*labelyrate = thisrate;
*sse = thissse >> 2;
return RDCOST(x->rdmult, x->rddiv, *labelyrate, *distortion);
}
typedef struct {
int eobs;
int brate;
int byrate;
int64_t bdist;
int64_t bsse;
int64_t brdcost;
int_mv mvs[2];
ENTROPY_CONTEXT ta[2];
ENTROPY_CONTEXT tl[2];
} SEG_RDSTAT;
typedef struct {
int_mv *ref_mv[2];
int_mv mvp;
int64_t segment_rd;
int r;
int64_t d;
int64_t sse;
int segment_yrate;
PREDICTION_MODE modes[4];
SEG_RDSTAT rdstat[4][INTER_MODES];
int mvthresh;
} BEST_SEG_INFO;
static INLINE int mv_check_bounds(const MACROBLOCK *x, const MV *mv) {
return (mv->row >> 3) < x->mv_row_min ||
(mv->row >> 3) > x->mv_row_max ||
(mv->col >> 3) < x->mv_col_min ||
(mv->col >> 3) > x->mv_col_max;
}
static INLINE void mi_buf_shift(MACROBLOCK *x, int i) {
MB_MODE_INFO *const mbmi = &x->e_mbd.mi[0]->mbmi;
struct macroblock_plane *const p = &x->plane[0];
struct macroblockd_plane *const pd = &x->e_mbd.plane[0];
p->src.buf = &p->src.buf[raster_block_offset(BLOCK_8X8, i, p->src.stride)];
assert(((intptr_t)pd->pre[0].buf & 0x7) == 0);
pd->pre[0].buf = &pd->pre[0].buf[raster_block_offset(BLOCK_8X8, i,
pd->pre[0].stride)];
if (has_second_ref(mbmi))
pd->pre[1].buf = &pd->pre[1].buf[raster_block_offset(BLOCK_8X8, i,
pd->pre[1].stride)];
}
static INLINE void mi_buf_restore(MACROBLOCK *x, struct buf_2d orig_src,
struct buf_2d orig_pre[2]) {
MB_MODE_INFO *mbmi = &x->e_mbd.mi[0]->mbmi;
x->plane[0].src = orig_src;
x->e_mbd.plane[0].pre[0] = orig_pre[0];
if (has_second_ref(mbmi))
x->e_mbd.plane[0].pre[1] = orig_pre[1];
}
static INLINE int mv_has_subpel(const MV *mv) {
return (mv->row & 0x0F) || (mv->col & 0x0F);
}
// Check if NEARESTMV/NEARMV/ZEROMV is the cheapest way encode zero motion.
// TODO(aconverse): Find out if this is still productive then clean up or remove
static int check_best_zero_mv(
const VP9_COMP *cpi, const uint8_t mode_context[MAX_REF_FRAMES],
int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES],
int inter_mode_mask, int this_mode,
const MV_REFERENCE_FRAME ref_frames[2]) {
if ((inter_mode_mask & (1 << ZEROMV)) &&
(this_mode == NEARMV || this_mode == NEARESTMV || this_mode == ZEROMV) &&
frame_mv[this_mode][ref_frames[0]].as_int == 0 &&
(ref_frames[1] == NONE ||
frame_mv[this_mode][ref_frames[1]].as_int == 0)) {
int rfc = mode_context[ref_frames[0]];
int c1 = cost_mv_ref(cpi, NEARMV, rfc);
int c2 = cost_mv_ref(cpi, NEARESTMV, rfc);
int c3 = cost_mv_ref(cpi, ZEROMV, rfc);
if (this_mode == NEARMV) {
if (c1 > c3) return 0;
} else if (this_mode == NEARESTMV) {
if (c2 > c3) return 0;
} else {
assert(this_mode == ZEROMV);
if (ref_frames[1] == NONE) {
if ((c3 >= c2 && frame_mv[NEARESTMV][ref_frames[0]].as_int == 0) ||
(c3 >= c1 && frame_mv[NEARMV][ref_frames[0]].as_int == 0))
return 0;
} else {
if ((c3 >= c2 && frame_mv[NEARESTMV][ref_frames[0]].as_int == 0 &&
frame_mv[NEARESTMV][ref_frames[1]].as_int == 0) ||
(c3 >= c1 && frame_mv[NEARMV][ref_frames[0]].as_int == 0 &&
frame_mv[NEARMV][ref_frames[1]].as_int == 0))
return 0;
}
}
}
return 1;
}
static int64_t rd_pick_best_sub8x8_mode(VP9_COMP *cpi, MACROBLOCK *x,
const TileInfo * const tile,
int_mv *best_ref_mv,
int_mv *second_best_ref_mv,
int64_t best_rd, int *returntotrate,
int *returnyrate,
int64_t *returndistortion,
int *skippable, int64_t *psse,
int mvthresh,
int_mv seg_mvs[4][MAX_REF_FRAMES],
BEST_SEG_INFO *bsi_buf, int filter_idx,
int mi_row, int mi_col) {
int i;
BEST_SEG_INFO *bsi = bsi_buf + filter_idx;
MACROBLOCKD *xd = &x->e_mbd;
MODE_INFO *mi = xd->mi[0];
MB_MODE_INFO *mbmi = &mi->mbmi;
int mode_idx;
int k, br = 0, idx, idy;
int64_t bd = 0, block_sse = 0;
PREDICTION_MODE this_mode;
VP9_COMMON *cm = &cpi->common;
struct macroblock_plane *const p = &x->plane[0];
struct macroblockd_plane *const pd = &xd->plane[0];
const int label_count = 4;
int64_t this_segment_rd = 0;
int label_mv_thresh;
int segmentyrate = 0;
const BLOCK_SIZE bsize = mbmi->sb_type;
const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize];
const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize];
ENTROPY_CONTEXT t_above[2], t_left[2];
int subpelmv = 1, have_ref = 0;
const int has_second_rf = has_second_ref(mbmi);
const int inter_mode_mask = cpi->sf.inter_mode_mask[bsize];
vp9_zero(*bsi);
bsi->segment_rd = best_rd;
bsi->ref_mv[0] = best_ref_mv;
bsi->ref_mv[1] = second_best_ref_mv;
bsi->mvp.as_int = best_ref_mv->as_int;
bsi->mvthresh = mvthresh;
for (i = 0; i < 4; i++)
bsi->modes[i] = ZEROMV;
vpx_memcpy(t_above, pd->above_context, sizeof(t_above));
vpx_memcpy(t_left, pd->left_context, sizeof(t_left));
// 64 makes this threshold really big effectively
// making it so that we very rarely check mvs on
// segments. setting this to 1 would make mv thresh
// roughly equal to what it is for macroblocks
label_mv_thresh = 1 * bsi->mvthresh / label_count;
// Segmentation method overheads
for (idy = 0; idy < 2; idy += num_4x4_blocks_high) {
for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) {
// TODO(jingning,rbultje): rewrite the rate-distortion optimization
// loop for 4x4/4x8/8x4 block coding. to be replaced with new rd loop
int_mv mode_mv[MB_MODE_COUNT][2];
int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES];
PREDICTION_MODE mode_selected = ZEROMV;
int64_t best_rd = INT64_MAX;
const int i = idy * 2 + idx;
int ref;
for (ref = 0; ref < 1 + has_second_rf; ++ref) {
const MV_REFERENCE_FRAME frame = mbmi->ref_frame[ref];
frame_mv[ZEROMV][frame].as_int = 0;
vp9_append_sub8x8_mvs_for_idx(cm, xd, tile, i, ref, mi_row, mi_col,
&frame_mv[NEARESTMV][frame],
&frame_mv[NEARMV][frame]);
}
// search for the best motion vector on this segment
for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) {
const struct buf_2d orig_src = x->plane[0].src;
struct buf_2d orig_pre[2];
mode_idx = INTER_OFFSET(this_mode);
bsi->rdstat[i][mode_idx].brdcost = INT64_MAX;
if (!(inter_mode_mask & (1 << this_mode)))
continue;
if (!check_best_zero_mv(cpi, mbmi->mode_context, frame_mv,
inter_mode_mask,
this_mode, mbmi->ref_frame))
continue;
vpx_memcpy(orig_pre, pd->pre, sizeof(orig_pre));
vpx_memcpy(bsi->rdstat[i][mode_idx].ta, t_above,
sizeof(bsi->rdstat[i][mode_idx].ta));
vpx_memcpy(bsi->rdstat[i][mode_idx].tl, t_left,
sizeof(bsi->rdstat[i][mode_idx].tl));
// motion search for newmv (single predictor case only)
if (!has_second_rf && this_mode == NEWMV &&
seg_mvs[i][mbmi->ref_frame[0]].as_int == INVALID_MV) {
MV *const new_mv = &mode_mv[NEWMV][0].as_mv;
int step_param = 0;
int thissme, bestsme = INT_MAX;
int sadpb = x->sadperbit4;
MV mvp_full;
int max_mv;
int sad_list[5];
/* Is the best so far sufficiently good that we cant justify doing
* and new motion search. */
if (best_rd < label_mv_thresh)
break;
if (cpi->oxcf.mode != BEST) {
// use previous block's result as next block's MV predictor.
if (i > 0) {
bsi->mvp.as_int = mi->bmi[i - 1].as_mv[0].as_int;
if (i == 2)
bsi->mvp.as_int = mi->bmi[i - 2].as_mv[0].as_int;
}
}
if (i == 0)
max_mv = x->max_mv_context[mbmi->ref_frame[0]];
else
max_mv = MAX(abs(bsi->mvp.as_mv.row), abs(bsi->mvp.as_mv.col)) >> 3;
if (cpi->sf.mv.auto_mv_step_size && cm->show_frame) {
// Take wtd average of the step_params based on the last frame's
// max mv magnitude and the best ref mvs of the current block for
// the given reference.
step_param = (vp9_init_search_range(max_mv) +
cpi->mv_step_param) / 2;
} else {
step_param = cpi->mv_step_param;
}
mvp_full.row = bsi->mvp.as_mv.row >> 3;
mvp_full.col = bsi->mvp.as_mv.col >> 3;
if (cpi->sf.adaptive_motion_search) {
mvp_full.row = x->pred_mv[mbmi->ref_frame[0]].row >> 3;
mvp_full.col = x->pred_mv[mbmi->ref_frame[0]].col >> 3;
step_param = MAX(step_param, 8);
}
// adjust src pointer for this block
mi_buf_shift(x, i);
vp9_set_mv_search_range(x, &bsi->ref_mv[0]->as_mv);
bestsme = vp9_full_pixel_search(
cpi, x, bsize, &mvp_full, step_param, sadpb,
cpi->sf.mv.subpel_search_method != SUBPEL_TREE ? sad_list : NULL,
&bsi->ref_mv[0]->as_mv, new_mv,
INT_MAX, 1);
// Should we do a full search (best quality only)
if (cpi->oxcf.mode == BEST) {
int_mv *const best_mv = &mi->bmi[i].as_mv[0];
/* Check if mvp_full is within the range. */
clamp_mv(&mvp_full, x->mv_col_min, x->mv_col_max,
x->mv_row_min, x->mv_row_max);
thissme = cpi->full_search_sad(x, &mvp_full,
sadpb, 16, &cpi->fn_ptr[bsize],
&bsi->ref_mv[0]->as_mv,
&best_mv->as_mv);
sad_list[1] = sad_list[2] = sad_list[3] = sad_list[4] = INT_MAX;
if (thissme < bestsme) {
bestsme = thissme;
*new_mv = best_mv->as_mv;
} else {
// The full search result is actually worse so re-instate the
// previous best vector
best_mv->as_mv = *new_mv;
}
}
if (bestsme < INT_MAX) {
int distortion;
cpi->find_fractional_mv_step(
x,
new_mv,
&bsi->ref_mv[0]->as_mv,
cm->allow_high_precision_mv,
x->errorperbit, &cpi->fn_ptr[bsize],
cpi->sf.mv.subpel_force_stop,
cpi->sf.mv.subpel_iters_per_step,
cond_sad_list(cpi, sad_list),
x->nmvjointcost, x->mvcost,
&distortion,
&x->pred_sse[mbmi->ref_frame[0]],
NULL, 0, 0);
// save motion search result for use in compound prediction
seg_mvs[i][mbmi->ref_frame[0]].as_mv = *new_mv;
}
if (cpi->sf.adaptive_motion_search)
x->pred_mv[mbmi->ref_frame[0]] = *new_mv;
// restore src pointers
mi_buf_restore(x, orig_src, orig_pre);
}
if (has_second_rf) {
if (seg_mvs[i][mbmi->ref_frame[1]].as_int == INVALID_MV ||
seg_mvs[i][mbmi->ref_frame[0]].as_int == INVALID_MV)
continue;
}
if (has_second_rf && this_mode == NEWMV &&
mbmi->interp_filter == EIGHTTAP) {
// adjust src pointers
mi_buf_shift(x, i);
if (cpi->sf.comp_inter_joint_search_thresh <= bsize) {
int rate_mv;
joint_motion_search(cpi, x, bsize, frame_mv[this_mode],
mi_row, mi_col, seg_mvs[i],
&rate_mv);
seg_mvs[i][mbmi->ref_frame[0]].as_int =
frame_mv[this_mode][mbmi->ref_frame[0]].as_int;
seg_mvs[i][mbmi->ref_frame[1]].as_int =
frame_mv[this_mode][mbmi->ref_frame[1]].as_int;
}
// restore src pointers
mi_buf_restore(x, orig_src, orig_pre);
}
bsi->rdstat[i][mode_idx].brate =
set_and_cost_bmi_mvs(cpi, xd, i, this_mode, mode_mv[this_mode],
frame_mv, seg_mvs[i], bsi->ref_mv,
x->nmvjointcost, x->mvcost);
for (ref = 0; ref < 1 + has_second_rf; ++ref) {
bsi->rdstat[i][mode_idx].mvs[ref].as_int =
mode_mv[this_mode][ref].as_int;
if (num_4x4_blocks_wide > 1)
bsi->rdstat[i + 1][mode_idx].mvs[ref].as_int =
mode_mv[this_mode][ref].as_int;
if (num_4x4_blocks_high > 1)
bsi->rdstat[i + 2][mode_idx].mvs[ref].as_int =
mode_mv[this_mode][ref].as_int;
}
// Trap vectors that reach beyond the UMV borders
if (mv_check_bounds(x, &mode_mv[this_mode][0].as_mv) ||
(has_second_rf &&
mv_check_bounds(x, &mode_mv[this_mode][1].as_mv)))
continue;
if (filter_idx > 0) {
BEST_SEG_INFO *ref_bsi = bsi_buf;
subpelmv = 0;
have_ref = 1;
for (ref = 0; ref < 1 + has_second_rf; ++ref) {
subpelmv |= mv_has_subpel(&mode_mv[this_mode][ref].as_mv);
have_ref &= mode_mv[this_mode][ref].as_int ==
ref_bsi->rdstat[i][mode_idx].mvs[ref].as_int;
}
if (filter_idx > 1 && !subpelmv && !have_ref) {
ref_bsi = bsi_buf + 1;
have_ref = 1;
for (ref = 0; ref < 1 + has_second_rf; ++ref)
have_ref &= mode_mv[this_mode][ref].as_int ==
ref_bsi->rdstat[i][mode_idx].mvs[ref].as_int;
}
if (!subpelmv && have_ref &&
ref_bsi->rdstat[i][mode_idx].brdcost < INT64_MAX) {
vpx_memcpy(&bsi->rdstat[i][mode_idx], &ref_bsi->rdstat[i][mode_idx],
sizeof(SEG_RDSTAT));
if (num_4x4_blocks_wide > 1)
bsi->rdstat[i + 1][mode_idx].eobs =
ref_bsi->rdstat[i + 1][mode_idx].eobs;
if (num_4x4_blocks_high > 1)
bsi->rdstat[i + 2][mode_idx].eobs =
ref_bsi->rdstat[i + 2][mode_idx].eobs;
if (bsi->rdstat[i][mode_idx].brdcost < best_rd) {
mode_selected = this_mode;
best_rd = bsi->rdstat[i][mode_idx].brdcost;
}
continue;
}
}
bsi->rdstat[i][mode_idx].brdcost =
encode_inter_mb_segment(cpi, x,
bsi->segment_rd - this_segment_rd, i,
&bsi->rdstat[i][mode_idx].byrate,
&bsi->rdstat[i][mode_idx].bdist,
&bsi->rdstat[i][mode_idx].bsse,
bsi->rdstat[i][mode_idx].ta,
bsi->rdstat[i][mode_idx].tl,
mi_row, mi_col);
if (bsi->rdstat[i][mode_idx].brdcost < INT64_MAX) {
bsi->rdstat[i][mode_idx].brdcost += RDCOST(x->rdmult, x->rddiv,
bsi->rdstat[i][mode_idx].brate, 0);
bsi->rdstat[i][mode_idx].brate += bsi->rdstat[i][mode_idx].byrate;
bsi->rdstat[i][mode_idx].eobs = p->eobs[i];
if (num_4x4_blocks_wide > 1)
bsi->rdstat[i + 1][mode_idx].eobs = p->eobs[i + 1];
if (num_4x4_blocks_high > 1)
bsi->rdstat[i + 2][mode_idx].eobs = p->eobs[i + 2];
}
if (bsi->rdstat[i][mode_idx].brdcost < best_rd) {
mode_selected = this_mode;
best_rd = bsi->rdstat[i][mode_idx].brdcost;
}
} /*for each 4x4 mode*/
if (best_rd == INT64_MAX) {
int iy, midx;
for (iy = i + 1; iy < 4; ++iy)
for (midx = 0; midx < INTER_MODES; ++midx)
bsi->rdstat[iy][midx].brdcost = INT64_MAX;
bsi->segment_rd = INT64_MAX;
return INT64_MAX;;
}
mode_idx = INTER_OFFSET(mode_selected);
vpx_memcpy(t_above, bsi->rdstat[i][mode_idx].ta, sizeof(t_above));
vpx_memcpy(t_left, bsi->rdstat[i][mode_idx].tl, sizeof(t_left));
set_and_cost_bmi_mvs(cpi, xd, i, mode_selected, mode_mv[mode_selected],
frame_mv, seg_mvs[i], bsi->ref_mv, x->nmvjointcost,
x->mvcost);
br += bsi->rdstat[i][mode_idx].brate;
bd += bsi->rdstat[i][mode_idx].bdist;
block_sse += bsi->rdstat[i][mode_idx].bsse;
segmentyrate += bsi->rdstat[i][mode_idx].byrate;
this_segment_rd += bsi->rdstat[i][mode_idx].brdcost;
if (this_segment_rd > bsi->segment_rd) {
int iy, midx;
for (iy = i + 1; iy < 4; ++iy)
for (midx = 0; midx < INTER_MODES; ++midx)
bsi->rdstat[iy][midx].brdcost = INT64_MAX;
bsi->segment_rd = INT64_MAX;
return INT64_MAX;;
}
}
} /* for each label */
bsi->r = br;
bsi->d = bd;
bsi->segment_yrate = segmentyrate;
bsi->segment_rd = this_segment_rd;
bsi->sse = block_sse;
// update the coding decisions
for (k = 0; k < 4; ++k)
bsi->modes[k] = mi->bmi[k].as_mode;
if (bsi->segment_rd > best_rd)
return INT64_MAX;
/* set it to the best */
for (i = 0; i < 4; i++) {
mode_idx = INTER_OFFSET(bsi->modes[i]);
mi->bmi[i].as_mv[0].as_int = bsi->rdstat[i][mode_idx].mvs[0].as_int;
if (has_second_ref(mbmi))
mi->bmi[i].as_mv[1].as_int = bsi->rdstat[i][mode_idx].mvs[1].as_int;
x->plane[0].eobs[i] = bsi->rdstat[i][mode_idx].eobs;
mi->bmi[i].as_mode = bsi->modes[i];
}
/*
* used to set mbmi->mv.as_int
*/
*returntotrate = bsi->r;
*returndistortion = bsi->d;
*returnyrate = bsi->segment_yrate;
*skippable = vp9_is_skippable_in_plane(x, BLOCK_8X8, 0);
*psse = bsi->sse;
mbmi->mode = bsi->modes[3];
return bsi->segment_rd;
}
static void estimate_ref_frame_costs(const VP9_COMMON *cm,
const MACROBLOCKD *xd,
int segment_id,
unsigned int *ref_costs_single,
unsigned int *ref_costs_comp,
vp9_prob *comp_mode_p) {
int seg_ref_active = vp9_segfeature_active(&cm->seg, segment_id,
SEG_LVL_REF_FRAME);
if (seg_ref_active) {
vpx_memset(ref_costs_single, 0, MAX_REF_FRAMES * sizeof(*ref_costs_single));
vpx_memset(ref_costs_comp, 0, MAX_REF_FRAMES * sizeof(*ref_costs_comp));
*comp_mode_p = 128;
} else {
vp9_prob intra_inter_p = vp9_get_intra_inter_prob(cm, xd);
vp9_prob comp_inter_p = 128;
if (cm->reference_mode == REFERENCE_MODE_SELECT) {
comp_inter_p = vp9_get_reference_mode_prob(cm, xd);
*comp_mode_p = comp_inter_p;
} else {
*comp_mode_p = 128;
}
ref_costs_single[INTRA_FRAME] = vp9_cost_bit(intra_inter_p, 0);
if (cm->reference_mode != COMPOUND_REFERENCE) {
vp9_prob ref_single_p1 = vp9_get_pred_prob_single_ref_p1(cm, xd);
vp9_prob ref_single_p2 = vp9_get_pred_prob_single_ref_p2(cm, xd);
unsigned int base_cost = vp9_cost_bit(intra_inter_p, 1);
if (cm->reference_mode == REFERENCE_MODE_SELECT)
base_cost += vp9_cost_bit(comp_inter_p, 0);
ref_costs_single[LAST_FRAME] = ref_costs_single[GOLDEN_FRAME] =
ref_costs_single[ALTREF_FRAME] = base_cost;
ref_costs_single[LAST_FRAME] += vp9_cost_bit(ref_single_p1, 0);
ref_costs_single[GOLDEN_FRAME] += vp9_cost_bit(ref_single_p1, 1);
ref_costs_single[ALTREF_FRAME] += vp9_cost_bit(ref_single_p1, 1);
ref_costs_single[GOLDEN_FRAME] += vp9_cost_bit(ref_single_p2, 0);
ref_costs_single[ALTREF_FRAME] += vp9_cost_bit(ref_single_p2, 1);
} else {
ref_costs_single[LAST_FRAME] = 512;
ref_costs_single[GOLDEN_FRAME] = 512;
ref_costs_single[ALTREF_FRAME] = 512;
}
if (cm->reference_mode != SINGLE_REFERENCE) {
vp9_prob ref_comp_p = vp9_get_pred_prob_comp_ref_p(cm, xd);
unsigned int base_cost = vp9_cost_bit(intra_inter_p, 1);
if (cm->reference_mode == REFERENCE_MODE_SELECT)
base_cost += vp9_cost_bit(comp_inter_p, 1);
ref_costs_comp[LAST_FRAME] = base_cost + vp9_cost_bit(ref_comp_p, 0);
ref_costs_comp[GOLDEN_FRAME] = base_cost + vp9_cost_bit(ref_comp_p, 1);
} else {
ref_costs_comp[LAST_FRAME] = 512;
ref_costs_comp[GOLDEN_FRAME] = 512;
}
}
}
static void store_coding_context(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx,
int mode_index,
int64_t comp_pred_diff[REFERENCE_MODES],
const int64_t tx_size_diff[TX_MODES],
int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS],
int skippable) {
MACROBLOCKD *const xd = &x->e_mbd;
// Take a snapshot of the coding context so it can be
// restored if we decide to encode this way
ctx->skip = x->skip;
ctx->skippable = skippable;
ctx->best_mode_index = mode_index;
ctx->mic = *xd->mi[0];
ctx->single_pred_diff = (int)comp_pred_diff[SINGLE_REFERENCE];
ctx->comp_pred_diff = (int)comp_pred_diff[COMPOUND_REFERENCE];
ctx->hybrid_pred_diff = (int)comp_pred_diff[REFERENCE_MODE_SELECT];
vpx_memcpy(ctx->tx_rd_diff, tx_size_diff, sizeof(ctx->tx_rd_diff));
vpx_memcpy(ctx->best_filter_diff, best_filter_diff,
sizeof(*best_filter_diff) * SWITCHABLE_FILTER_CONTEXTS);
}
static void setup_buffer_inter(VP9_COMP *cpi, MACROBLOCK *x,
const TileInfo *const tile,
MV_REFERENCE_FRAME ref_frame,
BLOCK_SIZE block_size,
int mi_row, int mi_col,
int_mv frame_nearest_mv[MAX_REF_FRAMES],
int_mv frame_near_mv[MAX_REF_FRAMES],
struct buf_2d yv12_mb[4][MAX_MB_PLANE]) {
const VP9_COMMON *cm = &cpi->common;
const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, ref_frame);
MACROBLOCKD *const xd = &x->e_mbd;
MODE_INFO *const mi = xd->mi[0];
int_mv *const candidates = mi->mbmi.ref_mvs[ref_frame];
const struct scale_factors *const sf = &cm->frame_refs[ref_frame - 1].sf;
// TODO(jkoleszar): Is the UV buffer ever used here? If so, need to make this
// use the UV scaling factors.
vp9_setup_pred_block(xd, yv12_mb[ref_frame], yv12, mi_row, mi_col, sf, sf);
// Gets an initial list of candidate vectors from neighbours and orders them
vp9_find_mv_refs(cm, xd, tile, mi, ref_frame, candidates, mi_row, mi_col);
// Candidate refinement carried out at encoder and decoder
vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv, candidates,
&frame_nearest_mv[ref_frame],
&frame_near_mv[ref_frame]);
// Further refinement that is encode side only to test the top few candidates
// in full and choose the best as the centre point for subsequent searches.
// The current implementation doesn't support scaling.
if (!vp9_is_scaled(sf) && block_size >= BLOCK_8X8)
vp9_mv_pred(cpi, x, yv12_mb[ref_frame][0].buf, yv12->y_stride,
ref_frame, block_size);
}
static void single_motion_search(VP9_COMP *cpi, MACROBLOCK *x,
BLOCK_SIZE bsize,
int mi_row, int mi_col,
int_mv *tmp_mv, int *rate_mv) {
MACROBLOCKD *xd = &x->e_mbd;
const VP9_COMMON *cm = &cpi->common;
MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
struct buf_2d backup_yv12[MAX_MB_PLANE] = {{0, 0}};
int bestsme = INT_MAX;
int step_param;
int sadpb = x->sadperbit16;
MV mvp_full;
int ref = mbmi->ref_frame[0];
MV ref_mv = mbmi->ref_mvs[ref][0].as_mv;
int tmp_col_min = x->mv_col_min;
int tmp_col_max = x->mv_col_max;
int tmp_row_min = x->mv_row_min;
int tmp_row_max = x->mv_row_max;
int sad_list[5];
const YV12_BUFFER_CONFIG *scaled_ref_frame = vp9_get_scaled_ref_frame(cpi,
ref);
MV pred_mv[3];
pred_mv[0] = mbmi->ref_mvs[ref][0].as_mv;
pred_mv[1] = mbmi->ref_mvs[ref][1].as_mv;
pred_mv[2] = x->pred_mv[ref];
if (scaled_ref_frame) {
int i;
// Swap out the reference frame for a version that's been scaled to
// match the resolution of the current frame, allowing the existing
// motion search code to be used without additional modifications.
for (i = 0; i < MAX_MB_PLANE; i++)
backup_yv12[i] = xd->plane[i].pre[0];
vp9_setup_pre_planes(xd, 0, scaled_ref_frame, mi_row, mi_col, NULL);
}
vp9_set_mv_search_range(x, &ref_mv);
// Work out the size of the first step in the mv step search.
// 0 here is maximum length first step. 1 is MAX >> 1 etc.
if (cpi->sf.mv.auto_mv_step_size && cm->show_frame) {
// Take wtd average of the step_params based on the last frame's
// max mv magnitude and that based on the best ref mvs of the current
// block for the given reference.
step_param = (vp9_init_search_range(x->max_mv_context[ref]) +
cpi->mv_step_param) / 2;
} else {
step_param = cpi->mv_step_param;
}
if (cpi->sf.adaptive_motion_search && bsize < BLOCK_64X64) {
int boffset = 2 * (b_width_log2(BLOCK_64X64) - MIN(b_height_log2(bsize),
b_width_log2(bsize)));
step_param = MAX(step_param, boffset);
}
if (cpi->sf.adaptive_motion_search) {
int bwl = b_width_log2(bsize);
int bhl = b_height_log2(bsize);
int i;
int tlevel = x->pred_mv_sad[ref] >> (bwl + bhl + 4);
if (tlevel < 5)
step_param += 2;
for (i = LAST_FRAME; i <= ALTREF_FRAME && cm->show_frame; ++i) {
if ((x->pred_mv_sad[ref] >> 3) > x->pred_mv_sad[i]) {
x->pred_mv[ref].row = 0;
x->pred_mv[ref].col = 0;
tmp_mv->as_int = INVALID_MV;
if (scaled_ref_frame) {
int i;
for (i = 0; i < MAX_MB_PLANE; i++)
xd->plane[i].pre[0] = backup_yv12[i];
}
return;
}
}
}
mvp_full = pred_mv[x->mv_best_ref_index[ref]];
mvp_full.col >>= 3;
mvp_full.row >>= 3;
bestsme = vp9_full_pixel_search(cpi, x, bsize, &mvp_full, step_param, sadpb,
cond_sad_list(cpi, sad_list),
&ref_mv, &tmp_mv->as_mv, INT_MAX, 1);
x->mv_col_min = tmp_col_min;
x->mv_col_max = tmp_col_max;
x->mv_row_min = tmp_row_min;
x->mv_row_max = tmp_row_max;
if (bestsme < INT_MAX) {
int dis; /* TODO: use dis in distortion calculation later. */
cpi->find_fractional_mv_step(x, &tmp_mv->as_mv, &ref_mv,
cm->allow_high_precision_mv,
x->errorperbit,
&cpi->fn_ptr[bsize],
cpi->sf.mv.subpel_force_stop,
cpi->sf.mv.subpel_iters_per_step,
cond_sad_list(cpi, sad_list),
x->nmvjointcost, x->mvcost,
&dis, &x->pred_sse[ref], NULL, 0, 0);
}
*rate_mv = vp9_mv_bit_cost(&tmp_mv->as_mv, &ref_mv,
x->nmvjointcost, x->mvcost, MV_COST_WEIGHT);
if (cpi->sf.adaptive_motion_search)
x->pred_mv[ref] = tmp_mv->as_mv;
if (scaled_ref_frame) {
int i;
for (i = 0; i < MAX_MB_PLANE; i++)
xd->plane[i].pre[0] = backup_yv12[i];
}
}
static void joint_motion_search(VP9_COMP *cpi, MACROBLOCK *x,
BLOCK_SIZE bsize,
int_mv *frame_mv,
int mi_row, int mi_col,
int_mv single_newmv[MAX_REF_FRAMES],
int *rate_mv) {
const int pw = 4 * num_4x4_blocks_wide_lookup[bsize];
const int ph = 4 * num_4x4_blocks_high_lookup[bsize];
MACROBLOCKD *xd = &x->e_mbd;
MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
const int refs[2] = { mbmi->ref_frame[0],
mbmi->ref_frame[1] < 0 ? 0 : mbmi->ref_frame[1] };
int_mv ref_mv[2];
int ite, ref;
// Prediction buffer from second frame.
uint8_t *second_pred = vpx_memalign(16, pw * ph * sizeof(uint8_t));
const InterpKernel *kernel = vp9_get_interp_kernel(mbmi->interp_filter);
// Do joint motion search in compound mode to get more accurate mv.
struct buf_2d backup_yv12[2][MAX_MB_PLANE];
struct buf_2d scaled_first_yv12 = xd->plane[0].pre[0];
int last_besterr[2] = {INT_MAX, INT_MAX};
const YV12_BUFFER_CONFIG *const scaled_ref_frame[2] = {
vp9_get_scaled_ref_frame(cpi, mbmi->ref_frame[0]),
vp9_get_scaled_ref_frame(cpi, mbmi->ref_frame[1])
};
for (ref = 0; ref < 2; ++ref) {
ref_mv[ref] = mbmi->ref_mvs[refs[ref]][0];
if (scaled_ref_frame[ref]) {
int i;
// Swap out the reference frame for a version that's been scaled to
// match the resolution of the current frame, allowing the existing
// motion search code to be used without additional modifications.
for (i = 0; i < MAX_MB_PLANE; i++)
backup_yv12[ref][i] = xd->plane[i].pre[ref];
vp9_setup_pre_planes(xd, ref, scaled_ref_frame[ref], mi_row, mi_col,
NULL);
}
frame_mv[refs[ref]].as_int = single_newmv[refs[ref]].as_int;
}
// Allow joint search multiple times iteratively for each ref frame
// and break out the search loop if it couldn't find better mv.
for (ite = 0; ite < 4; ite++) {
struct buf_2d ref_yv12[2];
int bestsme = INT_MAX;
int sadpb = x->sadperbit16;
MV tmp_mv;
int search_range = 3;
int tmp_col_min = x->mv_col_min;
int tmp_col_max = x->mv_col_max;
int tmp_row_min = x->mv_row_min;
int tmp_row_max = x->mv_row_max;
int id = ite % 2;
// Initialized here because of compiler problem in Visual Studio.
ref_yv12[0] = xd->plane[0].pre[0];
ref_yv12[1] = xd->plane[0].pre[1];
// Get pred block from second frame.
vp9_build_inter_predictor(ref_yv12[!id].buf,
ref_yv12[!id].stride,
second_pred, pw,
&frame_mv[refs[!id]].as_mv,
&xd->block_refs[!id]->sf,
pw, ph, 0,
kernel, MV_PRECISION_Q3,
mi_col * MI_SIZE, mi_row * MI_SIZE);
// Compound motion search on first ref frame.
if (id)
xd->plane[0].pre[0] = ref_yv12[id];
vp9_set_mv_search_range(x, &ref_mv[id].as_mv);
// Use mv result from single mode as mvp.
tmp_mv = frame_mv[refs[id]].as_mv;
tmp_mv.col >>= 3;
tmp_mv.row >>= 3;
// Small-range full-pixel motion search
bestsme = vp9_refining_search_8p_c(x, &tmp_mv, sadpb,
search_range,
&cpi->fn_ptr[bsize],
&ref_mv[id].as_mv, second_pred);
if (bestsme < INT_MAX)
bestsme = vp9_get_mvpred_av_var(x, &tmp_mv, &ref_mv[id].as_mv,
second_pred, &cpi->fn_ptr[bsize], 1);
x->mv_col_min = tmp_col_min;
x->mv_col_max = tmp_col_max;
x->mv_row_min = tmp_row_min;
x->mv_row_max = tmp_row_max;
if (bestsme < INT_MAX) {
int dis; /* TODO: use dis in distortion calculation later. */
unsigned int sse;
bestsme = cpi->find_fractional_mv_step(
x, &tmp_mv,
&ref_mv[id].as_mv,
cpi->common.allow_high_precision_mv,
x->errorperbit,
&cpi->fn_ptr[bsize],
0, cpi->sf.mv.subpel_iters_per_step,
NULL,
x->nmvjointcost, x->mvcost,
&dis, &sse, second_pred,
pw, ph);
}
if (id)
xd->plane[0].pre[0] = scaled_first_yv12;
if (bestsme < last_besterr[id]) {
frame_mv[refs[id]].as_mv = tmp_mv;
last_besterr[id] = bestsme;
} else {
break;
}
}
*rate_mv = 0;
for (ref = 0; ref < 2; ++ref) {
if (scaled_ref_frame[ref]) {
// restore the predictor
int i;
for (i = 0; i < MAX_MB_PLANE; i++)
xd->plane[i].pre[ref] = backup_yv12[ref][i];
}
*rate_mv += vp9_mv_bit_cost(&frame_mv[refs[ref]].as_mv,
&mbmi->ref_mvs[refs[ref]][0].as_mv,
x->nmvjointcost, x->mvcost, MV_COST_WEIGHT);
}
vpx_free(second_pred);
}
static INLINE void restore_dst_buf(MACROBLOCKD *xd,
uint8_t *orig_dst[MAX_MB_PLANE],
int orig_dst_stride[MAX_MB_PLANE]) {
int i;
for (i = 0; i < MAX_MB_PLANE; i++) {
xd->plane[i].dst.buf = orig_dst[i];
xd->plane[i].dst.stride = orig_dst_stride[i];
}
}
static void rd_encode_breakout_test(VP9_COMP *cpi, MACROBLOCK *x,
BLOCK_SIZE bsize, int *rate2,
int64_t *distortion, int64_t *distortion_uv,
int *disable_skip) {
VP9_COMMON *cm = &cpi->common;
MACROBLOCKD *xd = &x->e_mbd;
const BLOCK_SIZE y_size = get_plane_block_size(bsize, &xd->plane[0]);
const BLOCK_SIZE uv_size = get_plane_block_size(bsize, &xd->plane[1]);
unsigned int var, sse;
// Skipping threshold for ac.
unsigned int thresh_ac;
// Skipping threshold for dc
unsigned int thresh_dc;
var = cpi->fn_ptr[y_size].vf(x->plane[0].src.buf, x->plane[0].src.stride,
xd->plane[0].dst.buf,
xd->plane[0].dst.stride, &sse);
if (x->encode_breakout > 0) {
// Set a maximum for threshold to avoid big PSNR loss in low bitrate
// case. Use extreme low threshold for static frames to limit skipping.
const unsigned int max_thresh = (cpi->allow_encode_breakout ==
ENCODE_BREAKOUT_LIMITED) ? 128 : 36000;
// The encode_breakout input
const unsigned int min_thresh =
MIN(((unsigned int)x->encode_breakout << 4), max_thresh);
// Calculate threshold according to dequant value.
thresh_ac = (xd->plane[0].dequant[1] * xd->plane[0].dequant[1]) / 9;
thresh_ac = clamp(thresh_ac, min_thresh, max_thresh);
// Adjust threshold according to partition size.
thresh_ac >>= 8 - (b_width_log2(bsize) +
b_height_log2(bsize));
thresh_dc = (xd->plane[0].dequant[0] * xd->plane[0].dequant[0] >> 6);
} else {
thresh_ac = 0;
thresh_dc = 0;
}
// Y skipping condition checking
if (sse < thresh_ac || sse == 0) {
// dc skipping checking
if ((sse - var) < thresh_dc || sse == var) {
unsigned int sse_u, sse_v;
unsigned int var_u, var_v;
var_u = cpi->fn_ptr[uv_size].vf(x->plane[1].src.buf,
x->plane[1].src.stride,
xd->plane[1].dst.buf,
xd->plane[1].dst.stride, &sse_u);
// U skipping condition checking
if ((sse_u * 4 < thresh_ac || sse_u == 0) &&
(sse_u - var_u < thresh_dc || sse_u == var_u)) {
var_v = cpi->fn_ptr[uv_size].vf(x->plane[2].src.buf,
x->plane[2].src.stride,
xd->plane[2].dst.buf,
xd->plane[2].dst.stride, &sse_v);
// V skipping condition checking
if ((sse_v * 4 < thresh_ac || sse_v == 0) &&
(sse_v - var_v < thresh_dc || sse_v == var_v)) {
x->skip = 1;
// The cost of skip bit needs to be added.
*rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
// Scaling factor for SSE from spatial domain to frequency domain
// is 16. Adjust distortion accordingly.
*distortion_uv = (sse_u + sse_v) << 4;
*distortion = (sse << 4) + *distortion_uv;
*disable_skip = 1;
}
}
}
}
}
static int64_t handle_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
BLOCK_SIZE bsize,
int64_t txfm_cache[],
int *rate2, int64_t *distortion,
int *skippable,
int *rate_y, int64_t *distortion_y,
int *rate_uv, int64_t *distortion_uv,
int *disable_skip,
int_mv (*mode_mv)[MAX_REF_FRAMES],
int mi_row, int mi_col,
int_mv single_newmv[MAX_REF_FRAMES],
INTERP_FILTER (*single_filter)[MAX_REF_FRAMES],
int (*single_skippable)[MAX_REF_FRAMES],
int64_t *psse,
const int64_t ref_best_rd) {
VP9_COMMON *cm = &cpi->common;
RD_OPT *rd_opt = &cpi->rd;
MACROBLOCKD *xd = &x->e_mbd;
MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
const int is_comp_pred = has_second_ref(mbmi);
const int this_mode = mbmi->mode;
int_mv *frame_mv = mode_mv[this_mode];
int i;
int refs[2] = { mbmi->ref_frame[0],
(mbmi->ref_frame[1] < 0 ? 0 : mbmi->ref_frame[1]) };
int_mv cur_mv[2];
int64_t this_rd = 0;
DECLARE_ALIGNED_ARRAY(16, uint8_t, tmp_buf, MAX_MB_PLANE * 64 * 64);
int pred_exists = 0;
int intpel_mv;
int64_t rd, tmp_rd, best_rd = INT64_MAX;
int best_needs_copy = 0;
uint8_t *orig_dst[MAX_MB_PLANE];
int orig_dst_stride[MAX_MB_PLANE];
int rs = 0;
INTERP_FILTER best_filter = SWITCHABLE;
uint8_t skip_txfm[MAX_MB_PLANE << 2] = {0};
int64_t bsse[MAX_MB_PLANE << 2] = {0};
int bsl = mi_width_log2_lookup[bsize];
int pred_filter_search = cpi->sf.cb_pred_filter_search ?
(((mi_row + mi_col) >> bsl) +
get_chessboard_index(cm->current_video_frame)) & 0x1 : 0;
if (pred_filter_search) {
INTERP_FILTER af = SWITCHABLE, lf = SWITCHABLE;
if (xd->up_available)
af = xd->mi[-xd->mi_stride]->mbmi.interp_filter;
if (xd->left_available)
lf = xd->mi[-1]->mbmi.interp_filter;
if ((this_mode != NEWMV) || (af == lf))
best_filter = af;
}
if (is_comp_pred) {
if (frame_mv[refs[0]].as_int == INVALID_MV ||
frame_mv[refs[1]].as_int == INVALID_MV)
return INT64_MAX;
if (cpi->sf.adaptive_mode_search) {
if (single_filter[this_mode][refs[0]] ==
single_filter[this_mode][refs[1]])
best_filter = single_filter[this_mode][refs[0]];
}
}
if (this_mode == NEWMV) {
int rate_mv;
if (is_comp_pred) {
// Initialize mv using single prediction mode result.
frame_mv[refs[0]].as_int = single_newmv[refs[0]].as_int;
frame_mv[refs[1]].as_int = single_newmv[refs[1]].as_int;
if (cpi->sf.comp_inter_joint_search_thresh <= bsize) {
joint_motion_search(cpi, x, bsize, frame_mv,
mi_row, mi_col, single_newmv, &rate_mv);
} else {
rate_mv = vp9_mv_bit_cost(&frame_mv[refs[0]].as_mv,
&mbmi->ref_mvs[refs[0]][0].as_mv,
x->nmvjointcost, x->mvcost, MV_COST_WEIGHT);
rate_mv += vp9_mv_bit_cost(&frame_mv[refs[1]].as_mv,
&mbmi->ref_mvs[refs[1]][0].as_mv,
x->nmvjointcost, x->mvcost, MV_COST_WEIGHT);
}
*rate2 += rate_mv;
} else {
int_mv tmp_mv;
single_motion_search(cpi, x, bsize, mi_row, mi_col,
&tmp_mv, &rate_mv);
if (tmp_mv.as_int == INVALID_MV)
return INT64_MAX;
*rate2 += rate_mv;
frame_mv[refs[0]].as_int =
xd->mi[0]->bmi[0].as_mv[0].as_int = tmp_mv.as_int;
single_newmv[refs[0]].as_int = tmp_mv.as_int;
}
}
for (i = 0; i < is_comp_pred + 1; ++i) {
cur_mv[i] = frame_mv[refs[i]];
// Clip "next_nearest" so that it does not extend to far out of image
if (this_mode != NEWMV)
clamp_mv2(&cur_mv[i].as_mv, xd);
if (mv_check_bounds(x, &cur_mv[i].as_mv))
return INT64_MAX;
mbmi->mv[i].as_int = cur_mv[i].as_int;
}
// do first prediction into the destination buffer. Do the next
// prediction into a temporary buffer. Then keep track of which one
// of these currently holds the best predictor, and use the other
// one for future predictions. In the end, copy from tmp_buf to
// dst if necessary.
for (i = 0; i < MAX_MB_PLANE; i++) {
orig_dst[i] = xd->plane[i].dst.buf;
orig_dst_stride[i] = xd->plane[i].dst.stride;
}
/* We don't include the cost of the second reference here, because there
* are only three options: Last/Golden, ARF/Last or Golden/ARF, or in other
* words if you present them in that order, the second one is always known
* if the first is known */
*rate2 += cost_mv_ref(cpi, this_mode, mbmi->mode_context[refs[0]]);
if (RDCOST(x->rdmult, x->rddiv, *rate2, 0) > ref_best_rd &&
mbmi->mode != NEARESTMV)
return INT64_MAX;
pred_exists = 0;
// Are all MVs integer pel for Y and UV
intpel_mv = !mv_has_subpel(&mbmi->mv[0].as_mv);
if (is_comp_pred)
intpel_mv &= !mv_has_subpel(&mbmi->mv[1].as_mv);
// Search for best switchable filter by checking the variance of
// pred error irrespective of whether the filter will be used
rd_opt->mask_filter = 0;
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
rd_opt->filter_cache[i] = INT64_MAX;
if (cm->interp_filter != BILINEAR) {
if (x->source_variance < cpi->sf.disable_filter_search_var_thresh) {
best_filter = EIGHTTAP;
} else if (best_filter == SWITCHABLE) {
int newbest;
int tmp_rate_sum = 0;
int64_t tmp_dist_sum = 0;
for (i = 0; i < SWITCHABLE_FILTERS; ++i) {
int j;
int64_t rs_rd;
mbmi->interp_filter = i;
rs = vp9_get_switchable_rate(cpi);
rs_rd = RDCOST(x->rdmult, x->rddiv, rs, 0);
if (i > 0 && intpel_mv) {
rd = RDCOST(x->rdmult, x->rddiv, tmp_rate_sum, tmp_dist_sum);
rd_opt->filter_cache[i] = rd;
rd_opt->filter_cache[SWITCHABLE_FILTERS] =
MIN(rd_opt->filter_cache[SWITCHABLE_FILTERS], rd + rs_rd);
if (cm->interp_filter == SWITCHABLE)
rd += rs_rd;
rd_opt->mask_filter = MAX(rd_opt->mask_filter, rd);
} else {
int rate_sum = 0;
int64_t dist_sum = 0;
if (i > 0 && cpi->sf.adaptive_interp_filter_search &&
(cpi->sf.interp_filter_search_mask & (1 << i))) {
rate_sum = INT_MAX;
dist_sum = INT64_MAX;
continue;
}
if ((cm->interp_filter == SWITCHABLE &&
(!i || best_needs_copy)) ||
(cm->interp_filter != SWITCHABLE &&
(cm->interp_filter == mbmi->interp_filter ||
(i == 0 && intpel_mv)))) {
restore_dst_buf(xd, orig_dst, orig_dst_stride);
} else {
for (j = 0; j < MAX_MB_PLANE; j++) {
xd->plane[j].dst.buf = tmp_buf + j * 64 * 64;
xd->plane[j].dst.stride = 64;
}
}
vp9_build_inter_predictors_sb(xd, mi_row, mi_col, bsize);
model_rd_for_sb(cpi, bsize, x, xd, &rate_sum, &dist_sum);
rd = RDCOST(x->rdmult, x->rddiv, rate_sum, dist_sum);
rd_opt->filter_cache[i] = rd;
rd_opt->filter_cache[SWITCHABLE_FILTERS] =
MIN(rd_opt->filter_cache[SWITCHABLE_FILTERS], rd + rs_rd);
if (cm->interp_filter == SWITCHABLE)
rd += rs_rd;
rd_opt->mask_filter = MAX(rd_opt->mask_filter, rd);
if (i == 0 && intpel_mv) {
tmp_rate_sum = rate_sum;
tmp_dist_sum = dist_sum;
}
}
if (i == 0 && cpi->sf.use_rd_breakout && ref_best_rd < INT64_MAX) {
if (rd / 2 > ref_best_rd) {
restore_dst_buf(xd, orig_dst, orig_dst_stride);
return INT64_MAX;
}
}
newbest = i == 0 || rd < best_rd;
if (newbest) {
best_rd = rd;
best_filter = mbmi->interp_filter;
if (cm->interp_filter == SWITCHABLE && i && !intpel_mv)
best_needs_copy = !best_needs_copy;
vpx_memcpy(skip_txfm, x->skip_txfm, sizeof(skip_txfm));
vpx_memcpy(bsse, x->bsse, sizeof(bsse));
}
if ((cm->interp_filter == SWITCHABLE && newbest) ||
(cm->interp_filter != SWITCHABLE &&
cm->interp_filter == mbmi->interp_filter)) {
pred_exists = 1;
tmp_rd = best_rd;
}
}
restore_dst_buf(xd, orig_dst, orig_dst_stride);
}
}
// Set the appropriate filter
mbmi->interp_filter = cm->interp_filter != SWITCHABLE ?
cm->interp_filter : best_filter;
rs = cm->interp_filter == SWITCHABLE ? vp9_get_switchable_rate(cpi) : 0;
if (pred_exists) {
if (best_needs_copy) {
// again temporarily set the buffers to local memory to prevent a memcpy
for (i = 0; i < MAX_MB_PLANE; i++) {
xd->plane[i].dst.buf = tmp_buf + i * 64 * 64;
xd->plane[i].dst.stride = 64;
}
}
rd = tmp_rd + RDCOST(x->rdmult, x->rddiv, rs, 0);
} else {
int tmp_rate;
int64_t tmp_dist;
// Handles the special case when a filter that is not in the
// switchable list (ex. bilinear) is indicated at the frame level, or
// skip condition holds.
vp9_build_inter_predictors_sb(xd, mi_row, mi_col, bsize);
model_rd_for_sb(cpi, bsize, x, xd, &tmp_rate, &tmp_dist);
rd = RDCOST(x->rdmult, x->rddiv, rs + tmp_rate, tmp_dist);
vpx_memcpy(skip_txfm, x->skip_txfm, sizeof(skip_txfm));
vpx_memcpy(bsse, x->bsse, sizeof(bsse));
}
if (!is_comp_pred)
single_filter[this_mode][refs[0]] = mbmi->interp_filter;
if (cpi->sf.adaptive_mode_search)
if (is_comp_pred)
if (single_skippable[this_mode][refs[0]] &&
single_skippable[this_mode][refs[1]])
vpx_memset(skip_txfm, 1, sizeof(skip_txfm));
if (cpi->sf.use_rd_breakout && ref_best_rd < INT64_MAX) {
// if current pred_error modeled rd is substantially more than the best
// so far, do not bother doing full rd
if (rd / 2 > ref_best_rd) {
restore_dst_buf(xd, orig_dst, orig_dst_stride);
return INT64_MAX;
}
}
if (cm->interp_filter == SWITCHABLE)
*rate2 += rs;
if (!is_comp_pred) {
if (cpi->allow_encode_breakout)
rd_encode_breakout_test(cpi, x, bsize, rate2, distortion, distortion_uv,
disable_skip);
}
vpx_memcpy(x->skip_txfm, skip_txfm, sizeof(skip_txfm));
vpx_memcpy(x->bsse, bsse, sizeof(bsse));
if (!x->skip) {
int skippable_y, skippable_uv;
int64_t sseuv = INT64_MAX;
int64_t rdcosty = INT64_MAX;
// Y cost and distortion
vp9_subtract_plane(x, bsize, 0);
super_block_yrd(cpi, x, rate_y, distortion_y, &skippable_y, psse,
bsize, txfm_cache, ref_best_rd);
if (*rate_y == INT_MAX) {
*rate2 = INT_MAX;
*distortion = INT64_MAX;
restore_dst_buf(xd, orig_dst, orig_dst_stride);
return INT64_MAX;
}
*rate2 += *rate_y;
*distortion += *distortion_y;
rdcosty = RDCOST(x->rdmult, x->rddiv, *rate2, *distortion);
rdcosty = MIN(rdcosty, RDCOST(x->rdmult, x->rddiv, 0, *psse));
super_block_uvrd(cpi, x, rate_uv, distortion_uv, &skippable_uv, &sseuv,
bsize, ref_best_rd - rdcosty);
if (*rate_uv == INT_MAX) {
*rate2 = INT_MAX;
*distortion = INT64_MAX;
restore_dst_buf(xd, orig_dst, orig_dst_stride);
return INT64_MAX;
}
*psse += sseuv;
*rate2 += *rate_uv;
*distortion += *distortion_uv;
*skippable = skippable_y && skippable_uv;
}
if (!is_comp_pred)
single_skippable[this_mode][refs[0]] = *skippable;
restore_dst_buf(xd, orig_dst, orig_dst_stride);
return this_rd; // if 0, this will be re-calculated by caller
}
void vp9_rd_pick_intra_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
int *returnrate, int64_t *returndist,
BLOCK_SIZE bsize,
PICK_MODE_CONTEXT *ctx, int64_t best_rd) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
struct macroblockd_plane *const pd = xd->plane;
int rate_y = 0, rate_uv = 0, rate_y_tokenonly = 0, rate_uv_tokenonly = 0;
int y_skip = 0, uv_skip = 0;
int64_t dist_y = 0, dist_uv = 0, tx_cache[TX_MODES] = { 0 };
TX_SIZE max_uv_tx_size;
x->skip_encode = 0;
ctx->skip = 0;
xd->mi[0]->mbmi.ref_frame[0] = INTRA_FRAME;
if (bsize >= BLOCK_8X8) {
if (rd_pick_intra_sby_mode(cpi, x, &rate_y, &rate_y_tokenonly,
&dist_y, &y_skip, bsize, tx_cache,
best_rd) >= best_rd) {
*returnrate = INT_MAX;
return;
}
max_uv_tx_size = get_uv_tx_size_impl(xd->mi[0]->mbmi.tx_size, bsize,
pd[1].subsampling_x,
pd[1].subsampling_y);
rd_pick_intra_sbuv_mode(cpi, x, ctx, &rate_uv, &rate_uv_tokenonly,
&dist_uv, &uv_skip, bsize, max_uv_tx_size);
} else {
y_skip = 0;
if (rd_pick_intra_sub_8x8_y_mode(cpi, x, &rate_y, &rate_y_tokenonly,
&dist_y, best_rd) >= best_rd) {
*returnrate = INT_MAX;
return;
}
max_uv_tx_size = get_uv_tx_size_impl(xd->mi[0]->mbmi.tx_size, bsize,
pd[1].subsampling_x,
pd[1].subsampling_y);
rd_pick_intra_sbuv_mode(cpi, x, ctx, &rate_uv, &rate_uv_tokenonly,
&dist_uv, &uv_skip, BLOCK_8X8, max_uv_tx_size);
}
if (y_skip && uv_skip) {
*returnrate = rate_y + rate_uv - rate_y_tokenonly - rate_uv_tokenonly +
vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
*returndist = dist_y + dist_uv;
vp9_zero(ctx->tx_rd_diff);
} else {
int i;
*returnrate = rate_y + rate_uv + vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
*returndist = dist_y + dist_uv;
if (cpi->sf.tx_size_search_method == USE_FULL_RD)
for (i = 0; i < TX_MODES; i++) {
if (tx_cache[i] < INT64_MAX && tx_cache[cm->tx_mode] < INT64_MAX)
ctx->tx_rd_diff[i] = tx_cache[i] - tx_cache[cm->tx_mode];
else
ctx->tx_rd_diff[i] = 0;
}
}
ctx->mic = *xd->mi[0];
}
// Updating rd_thresh_freq_fact[] here means that the different
// partition/block sizes are handled independently based on the best
// choice for the current partition. It may well be better to keep a scaled
// best rd so far value and update rd_thresh_freq_fact based on the mode/size
// combination that wins out.
static void update_rd_thresh_fact(VP9_COMP *cpi, int bsize,
int best_mode_index) {
if (cpi->sf.adaptive_rd_thresh > 0) {
const int top_mode = bsize < BLOCK_8X8 ? MAX_REFS : MAX_MODES;
int mode;
for (mode = 0; mode < top_mode; ++mode) {
int *const fact = &cpi->rd.thresh_freq_fact[bsize][mode];
if (mode == best_mode_index) {
*fact -= (*fact >> 3);
} else {
*fact = MIN(*fact + RD_THRESH_INC,
cpi->sf.adaptive_rd_thresh * RD_THRESH_MAX_FACT);
}
}
}
}
int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
const TileInfo *const tile,
int mi_row, int mi_col,
int *returnrate,
int64_t *returndistortion,
BLOCK_SIZE bsize,
PICK_MODE_CONTEXT *ctx,
int64_t best_rd_so_far) {
VP9_COMMON *const cm = &cpi->common;
RD_OPT *const rd_opt = &cpi->rd;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
const struct segmentation *const seg = &cm->seg;
struct macroblockd_plane *const pd = xd->plane;
PREDICTION_MODE this_mode;
MV_REFERENCE_FRAME ref_frame, second_ref_frame;
unsigned char segment_id = mbmi->segment_id;
int comp_pred, i, k;
int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES];
struct buf_2d yv12_mb[4][MAX_MB_PLANE];
int_mv single_newmv[MAX_REF_FRAMES] = { { 0 } };
INTERP_FILTER single_inter_filter[MB_MODE_COUNT][MAX_REF_FRAMES];
int single_skippable[MB_MODE_COUNT][MAX_REF_FRAMES];
static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG,
VP9_ALT_FLAG };
int64_t best_rd = best_rd_so_far;
int64_t best_tx_rd[TX_MODES];
int64_t best_tx_diff[TX_MODES];
int64_t best_pred_diff[REFERENCE_MODES];
int64_t best_pred_rd[REFERENCE_MODES];
int64_t best_filter_rd[SWITCHABLE_FILTER_CONTEXTS];
int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS];
MB_MODE_INFO best_mbmode;
int best_mode_skippable = 0;
int mode_index, best_mode_index = -1;
unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES];
vp9_prob comp_mode_p;
int64_t best_intra_rd = INT64_MAX;
int64_t best_inter_rd = INT64_MAX;
PREDICTION_MODE best_intra_mode = DC_PRED;
MV_REFERENCE_FRAME best_inter_ref_frame = LAST_FRAME;
int rate_uv_intra[TX_SIZES], rate_uv_tokenonly[TX_SIZES];
int64_t dist_uv[TX_SIZES];
int skip_uv[TX_SIZES];
PREDICTION_MODE mode_uv[TX_SIZES];
int intra_cost_penalty = 20 * vp9_dc_quant(cm->base_qindex, cm->y_dc_delta_q);
int best_skip2 = 0;
int mode_skip_mask = 0;
int mode_skip_start = cpi->sf.mode_skip_start + 1;
const int *const rd_threshes = rd_opt->threshes[segment_id][bsize];
const int *const rd_thresh_freq_fact = rd_opt->thresh_freq_fact[bsize];
const int mode_search_skip_flags = cpi->sf.mode_search_skip_flags;
const int intra_y_mode_mask =
cpi->sf.intra_y_mode_mask[max_txsize_lookup[bsize]];
int inter_mode_mask = cpi->sf.inter_mode_mask[bsize];
vp9_zero(best_mbmode);
x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH;
estimate_ref_frame_costs(cm, xd, segment_id, ref_costs_single, ref_costs_comp,
&comp_mode_p);
for (i = 0; i < REFERENCE_MODES; ++i)
best_pred_rd[i] = INT64_MAX;
for (i = 0; i < TX_MODES; i++)
best_tx_rd[i] = INT64_MAX;
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++)
best_filter_rd[i] = INT64_MAX;
for (i = 0; i < TX_SIZES; i++)
rate_uv_intra[i] = INT_MAX;
for (i = 0; i < MAX_REF_FRAMES; ++i)
x->pred_sse[i] = INT_MAX;
for (i = 0; i < MB_MODE_COUNT; ++i) {
for (k = 0; k < MAX_REF_FRAMES; ++k) {
single_inter_filter[i][k] = SWITCHABLE;
single_skippable[i][k] = 0;
}
}
*returnrate = INT_MAX;
for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
x->pred_mv_sad[ref_frame] = INT_MAX;
if (cpi->ref_frame_flags & flag_list[ref_frame]) {
setup_buffer_inter(cpi, x, tile, ref_frame, bsize, mi_row, mi_col,
frame_mv[NEARESTMV], frame_mv[NEARMV], yv12_mb);
}
frame_mv[NEWMV][ref_frame].as_int = INVALID_MV;
frame_mv[ZEROMV][ref_frame].as_int = 0;
}
for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
// All modes from vp9_mode_order that use this frame as any ref
static const int ref_frame_mask_all[] = {
0x0, 0x123291, 0x25c444, 0x39b722
};
// Fixed mv modes (NEARESTMV, NEARMV, ZEROMV) from vp9_mode_order that use
// this frame as their primary ref
static const int ref_frame_mask_fixedmv[] = {
0x0, 0x121281, 0x24c404, 0x080102
};
if (!(cpi->ref_frame_flags & flag_list[ref_frame])) {
// Skip modes for missing references
mode_skip_mask |= ref_frame_mask_all[ref_frame];
} else if (cpi->sf.reference_masking) {
for (i = LAST_FRAME; i <= ALTREF_FRAME; ++i) {
// Skip fixed mv modes for poor references
if ((x->pred_mv_sad[ref_frame] >> 2) > x->pred_mv_sad[i]) {
mode_skip_mask |= ref_frame_mask_fixedmv[ref_frame];
break;
}
}
}
// If the segment reference frame feature is enabled....
// then do nothing if the current ref frame is not allowed..
if (vp9_segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME) &&
vp9_get_segdata(seg, segment_id, SEG_LVL_REF_FRAME) != (int)ref_frame) {
mode_skip_mask |= ref_frame_mask_all[ref_frame];
}
}
// Disable this drop out case if the ref frame
// segment level feature is enabled for this segment. This is to
// prevent the possibility that we end up unable to pick any mode.
if (!vp9_segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME)) {
// Only consider ZEROMV/ALTREF_FRAME for alt ref frame,
// unless ARNR filtering is enabled in which case we want
// an unfiltered alternative. We allow near/nearest as well
// because they may result in zero-zero MVs but be cheaper.
if (cpi->rc.is_src_frame_alt_ref && (cpi->oxcf.arnr_max_frames == 0)) {
mode_skip_mask =
~((1 << THR_NEARESTA) | (1 << THR_NEARA) | (1 << THR_ZEROA));
if (frame_mv[NEARMV][ALTREF_FRAME].as_int != 0)
mode_skip_mask |= (1 << THR_NEARA);
if (frame_mv[NEARESTMV][ALTREF_FRAME].as_int != 0)
mode_skip_mask |= (1 << THR_NEARESTA);
}
}
if (bsize > cpi->sf.max_intra_bsize) {
const int all_intra_modes = (1 << THR_DC) | (1 << THR_TM) |
(1 << THR_H_PRED) | (1 << THR_V_PRED) | (1 << THR_D135_PRED) |
(1 << THR_D207_PRED) | (1 << THR_D153_PRED) | (1 << THR_D63_PRED) |
(1 << THR_D117_PRED) | (1 << THR_D45_PRED);
mode_skip_mask |= all_intra_modes;
}
for (mode_index = 0; mode_index < MAX_MODES; ++mode_index) {
int mode_excluded = 0;
int64_t this_rd = INT64_MAX;
int disable_skip = 0;
int compmode_cost = 0;
int rate2 = 0, rate_y = 0, rate_uv = 0;
int64_t distortion2 = 0, distortion_y = 0, distortion_uv = 0;
int skippable = 0;
int64_t tx_cache[TX_MODES];
int i;
int this_skip2 = 0;
int64_t total_sse = INT64_MAX;
int early_term = 0;
this_mode = vp9_mode_order[mode_index].mode;
ref_frame = vp9_mode_order[mode_index].ref_frame[0];
if (ref_frame != INTRA_FRAME && !(inter_mode_mask & (1 << this_mode)))
continue;
second_ref_frame = vp9_mode_order[mode_index].ref_frame[1];
// Look at the reference frame of the best mode so far and set the
// skip mask to look at a subset of the remaining modes.
if (mode_index == mode_skip_start && best_mode_index >= 0) {
switch (vp9_mode_order[best_mode_index].ref_frame[0]) {
case INTRA_FRAME:
break;
case LAST_FRAME:
mode_skip_mask |= LAST_FRAME_MODE_MASK;
break;
case GOLDEN_FRAME:
mode_skip_mask |= GOLDEN_FRAME_MODE_MASK;
break;
case ALTREF_FRAME:
mode_skip_mask |= ALT_REF_MODE_MASK;
break;
case NONE:
case MAX_REF_FRAMES:
assert(0 && "Invalid Reference frame");
break;
}
}
if (cpi->sf.alt_ref_search_fp && cpi->rc.is_src_frame_alt_ref) {
mode_skip_mask = 0;
if (!(ref_frame == ALTREF_FRAME && second_ref_frame == NONE))
continue;
}
if (mode_skip_mask & (1 << mode_index))
continue;
// Test best rd so far against threshold for trying this mode.
if (rd_less_than_thresh(best_rd, rd_threshes[mode_index],
rd_thresh_freq_fact[mode_index]))
continue;
if (cpi->sf.motion_field_mode_search) {
const int mi_width = MIN(num_8x8_blocks_wide_lookup[bsize],
tile->mi_col_end - mi_col);
const int mi_height = MIN(num_8x8_blocks_high_lookup[bsize],
tile->mi_row_end - mi_row);
const int bsl = mi_width_log2(bsize);
int cb_partition_search_ctrl = (((mi_row + mi_col) >> bsl)
+ get_chessboard_index(cm->current_video_frame)) & 0x1;
MB_MODE_INFO *ref_mbmi;
int const_motion = 1;
int skip_ref_frame = !cb_partition_search_ctrl;
MV_REFERENCE_FRAME rf = NONE;
int_mv ref_mv;
ref_mv.as_int = INVALID_MV;
if ((mi_row - 1) >= tile->mi_row_start) {
ref_mv = xd->mi[-xd->mi_stride]->mbmi.mv[0];
rf = xd->mi[-xd->mi_stride]->mbmi.ref_frame[0];
for (i = 0; i < mi_width; ++i) {
ref_mbmi = &xd->mi[-xd->mi_stride + i]->mbmi;
const_motion &= (ref_mv.as_int == ref_mbmi->mv[0].as_int) &&
(ref_frame == ref_mbmi->ref_frame[0]);
skip_ref_frame &= (rf == ref_mbmi->ref_frame[0]);
}
}
if ((mi_col - 1) >= tile->mi_col_start) {
if (ref_mv.as_int == INVALID_MV)
ref_mv = xd->mi[-1]->mbmi.mv[0];
if (rf == NONE)
rf = xd->mi[-1]->mbmi.ref_frame[0];
for (i = 0; i < mi_height; ++i) {
ref_mbmi = &xd->mi[i * xd->mi_stride - 1]->mbmi;
const_motion &= (ref_mv.as_int == ref_mbmi->mv[0].as_int) &&
(ref_frame == ref_mbmi->ref_frame[0]);
skip_ref_frame &= (rf == ref_mbmi->ref_frame[0]);
}
}
if (skip_ref_frame && this_mode != NEARESTMV && this_mode != NEWMV)
if (rf > INTRA_FRAME)
if (ref_frame != rf)
continue;
if (const_motion)
if (this_mode == NEARMV || this_mode == ZEROMV)
continue;
}
comp_pred = second_ref_frame > INTRA_FRAME;
if (comp_pred) {
if (!cm->allow_comp_inter_inter)
continue;
if ((mode_search_skip_flags & FLAG_SKIP_COMP_BESTINTRA) &&
best_mode_index >=0 &&
vp9_mode_order[best_mode_index].ref_frame[0] == INTRA_FRAME)
continue;
if ((mode_search_skip_flags & FLAG_SKIP_COMP_REFMISMATCH) &&
ref_frame != best_inter_ref_frame &&
second_ref_frame != best_inter_ref_frame)
continue;
mode_excluded = cm->reference_mode == SINGLE_REFERENCE;
} else {
if (ref_frame != INTRA_FRAME)
mode_excluded = cm->reference_mode == COMPOUND_REFERENCE;
}
if (ref_frame == INTRA_FRAME) {
if (cpi->sf.adaptive_mode_search)
if ((x->source_variance << num_pels_log2_lookup[bsize]) > best_intra_rd)
continue;
if (!(intra_y_mode_mask & (1 << this_mode)))
continue;
if (this_mode != DC_PRED) {
// Disable intra modes other than DC_PRED for blocks with low variance
// Threshold for intra skipping based on source variance
// TODO(debargha): Specialize the threshold for super block sizes
const unsigned int skip_intra_var_thresh = 64;
if ((mode_search_skip_flags & FLAG_SKIP_INTRA_LOWVAR) &&
x->source_variance < skip_intra_var_thresh)
continue;
// Only search the oblique modes if the best so far is
// one of the neighboring directional modes
if ((mode_search_skip_flags & FLAG_SKIP_INTRA_BESTINTER) &&
(this_mode >= D45_PRED && this_mode <= TM_PRED)) {
if (best_mode_index >= 0 &&
vp9_mode_order[best_mode_index].ref_frame[0] > INTRA_FRAME)
continue;
}
if (mode_search_skip_flags & FLAG_SKIP_INTRA_DIRMISMATCH) {
if (conditional_skipintra(this_mode, best_intra_mode))
continue;
}
}
} else {
const MV_REFERENCE_FRAME ref_frames[2] = {ref_frame, second_ref_frame};
if (!check_best_zero_mv(cpi, mbmi->mode_context, frame_mv,
inter_mode_mask, this_mode, ref_frames))
continue;
}
mbmi->mode = this_mode;
mbmi->uv_mode = DC_PRED;
mbmi->ref_frame[0] = ref_frame;
mbmi->ref_frame[1] = second_ref_frame;
// Evaluate all sub-pel filters irrespective of whether we can use
// them for this frame.
mbmi->interp_filter = cm->interp_filter == SWITCHABLE ? EIGHTTAP
: cm->interp_filter;
mbmi->mv[0].as_int = mbmi->mv[1].as_int = 0;
x->skip = 0;
set_ref_ptrs(cm, xd, ref_frame, second_ref_frame);
// Select prediction reference frames.
for (i = 0; i < MAX_MB_PLANE; i++) {
xd->plane[i].pre[0] = yv12_mb[ref_frame][i];
if (comp_pred)
xd->plane[i].pre[1] = yv12_mb[second_ref_frame][i];
}
for (i = 0; i < TX_MODES; ++i)
tx_cache[i] = INT64_MAX;
if (ref_frame == INTRA_FRAME) {
TX_SIZE uv_tx;
super_block_yrd(cpi, x, &rate_y, &distortion_y, &skippable,
NULL, bsize, tx_cache, best_rd);
if (rate_y == INT_MAX)
continue;
uv_tx = get_uv_tx_size_impl(mbmi->tx_size, bsize, pd[1].subsampling_x,
pd[1].subsampling_y);
if (rate_uv_intra[uv_tx] == INT_MAX) {
choose_intra_uv_mode(cpi, ctx, bsize, uv_tx,
&rate_uv_intra[uv_tx], &rate_uv_tokenonly[uv_tx],
&dist_uv[uv_tx], &skip_uv[uv_tx], &mode_uv[uv_tx]);
}
rate_uv = rate_uv_tokenonly[uv_tx];
distortion_uv = dist_uv[uv_tx];
skippable = skippable && skip_uv[uv_tx];
mbmi->uv_mode = mode_uv[uv_tx];
rate2 = rate_y + cpi->mbmode_cost[mbmi->mode] + rate_uv_intra[uv_tx];
if (this_mode != DC_PRED && this_mode != TM_PRED)
rate2 += intra_cost_penalty;
distortion2 = distortion_y + distortion_uv;
} else {
this_rd = handle_inter_mode(cpi, x, bsize,
tx_cache,
&rate2, &distortion2, &skippable,
&rate_y, &distortion_y,
&rate_uv, &distortion_uv,
&disable_skip, frame_mv,
mi_row, mi_col,
single_newmv, single_inter_filter,
single_skippable, &total_sse, best_rd);
if (this_rd == INT64_MAX)
continue;
compmode_cost = vp9_cost_bit(comp_mode_p, comp_pred);
if (cm->reference_mode == REFERENCE_MODE_SELECT)
rate2 += compmode_cost;
}
// Estimate the reference frame signaling cost and add it
// to the rolling cost variable.
if (comp_pred) {
rate2 += ref_costs_comp[ref_frame];
} else {
rate2 += ref_costs_single[ref_frame];
}
if (!disable_skip) {
if (skippable) {
vp9_prob skip_prob = vp9_get_skip_prob(cm, xd);
// Back out the coefficient coding costs
rate2 -= (rate_y + rate_uv);
// for best yrd calculation
rate_uv = 0;
// Cost the skip mb case
if (skip_prob) {
int prob_skip_cost = vp9_cost_bit(skip_prob, 1);
rate2 += prob_skip_cost;
}
} else if (ref_frame != INTRA_FRAME && !xd->lossless) {
if (RDCOST(x->rdmult, x->rddiv, rate_y + rate_uv, distortion2) <
RDCOST(x->rdmult, x->rddiv, 0, total_sse)) {
// Add in the cost of the no skip flag.
rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
} else {
// FIXME(rbultje) make this work for splitmv also
rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
distortion2 = total_sse;
assert(total_sse >= 0);
rate2 -= (rate_y + rate_uv);
rate_y = 0;
rate_uv = 0;
this_skip2 = 1;
}
} else {
// Add in the cost of the no skip flag.
rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
}
// Calculate the final RD estimate for this mode.
this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
}
if (ref_frame == INTRA_FRAME) {
// Keep record of best intra rd
if (this_rd < best_intra_rd) {
best_intra_rd = this_rd;
best_intra_mode = mbmi->mode;
}
} else {
// Keep record of best inter rd with single reference
if (!comp_pred && !mode_excluded && this_rd < best_inter_rd) {
best_inter_rd = this_rd;
best_inter_ref_frame = ref_frame;
}
}
if (!disable_skip && ref_frame == INTRA_FRAME) {
for (i = 0; i < REFERENCE_MODES; ++i)
best_pred_rd[i] = MIN(best_pred_rd[i], this_rd);
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++)
best_filter_rd[i] = MIN(best_filter_rd[i], this_rd);
}
// Did this mode help.. i.e. is it the new best mode
if (this_rd < best_rd || x->skip) {
int max_plane = MAX_MB_PLANE;
if (!mode_excluded) {
// Note index of best mode so far
best_mode_index = mode_index;
if (ref_frame == INTRA_FRAME) {
/* required for left and above block mv */
mbmi->mv[0].as_int = 0;
max_plane = 1;
} else {
best_intra_rd = x->pred_sse[ref_frame];
}
*returnrate = rate2;
*returndistortion = distortion2;
best_rd = this_rd;
best_mbmode = *mbmi;
best_skip2 = this_skip2;
best_mode_skippable = skippable;
if (!x->select_tx_size)
swap_block_ptr(x, ctx, 1, 0, 0, max_plane);
vpx_memcpy(ctx->zcoeff_blk, x->zcoeff_blk[mbmi->tx_size],
sizeof(uint8_t) * ctx->num_4x4_blk);
// TODO(debargha): enhance this test with a better distortion prediction
// based on qp, activity mask and history
if ((mode_search_skip_flags & FLAG_EARLY_TERMINATE) &&
(mode_index > MIN_EARLY_TERM_INDEX)) {
const int qstep = xd->plane[0].dequant[1];
// TODO(debargha): Enhance this by specializing for each mode_index
int scale = 4;
if (x->source_variance < UINT_MAX) {
const int var_adjust = (x->source_variance < 16);
scale -= var_adjust;
}
if (ref_frame > INTRA_FRAME &&
distortion2 * scale < qstep * qstep) {
early_term = 1;
}
}
}
}
/* keep record of best compound/single-only prediction */
if (!disable_skip && ref_frame != INTRA_FRAME) {
int64_t single_rd, hybrid_rd, single_rate, hybrid_rate;
if (cm->reference_mode == REFERENCE_MODE_SELECT) {
single_rate = rate2 - compmode_cost;
hybrid_rate = rate2;
} else {
single_rate = rate2;
hybrid_rate = rate2 + compmode_cost;
}
single_rd = RDCOST(x->rdmult, x->rddiv, single_rate, distortion2);
hybrid_rd = RDCOST(x->rdmult, x->rddiv, hybrid_rate, distortion2);
if (!comp_pred) {
if (single_rd < best_pred_rd[SINGLE_REFERENCE]) {
best_pred_rd[SINGLE_REFERENCE] = single_rd;
}
} else {
if (single_rd < best_pred_rd[COMPOUND_REFERENCE]) {
best_pred_rd[COMPOUND_REFERENCE] = single_rd;
}
}
if (hybrid_rd < best_pred_rd[REFERENCE_MODE_SELECT])
best_pred_rd[REFERENCE_MODE_SELECT] = hybrid_rd;
/* keep record of best filter type */
if (!mode_excluded && cm->interp_filter != BILINEAR) {
int64_t ref = rd_opt->filter_cache[cm->interp_filter == SWITCHABLE ?
SWITCHABLE_FILTERS : cm->interp_filter];
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) {
int64_t adj_rd;
if (ref == INT64_MAX)
adj_rd = 0;
else if (rd_opt->filter_cache[i] == INT64_MAX)
// when early termination is triggered, the encoder does not have
// access to the rate-distortion cost. it only knows that the cost
// should be above the maximum valid value. hence it takes the known
// maximum plus an arbitrary constant as the rate-distortion cost.
adj_rd = rd_opt->mask_filter - ref + 10;
else
adj_rd = rd_opt->filter_cache[i] - ref;
adj_rd += this_rd;
best_filter_rd[i] = MIN(best_filter_rd[i], adj_rd);
}
}
}
/* keep record of best txfm size */
if (bsize < BLOCK_32X32) {
if (bsize < BLOCK_16X16)
tx_cache[ALLOW_16X16] = tx_cache[ALLOW_8X8];
tx_cache[ALLOW_32X32] = tx_cache[ALLOW_16X16];
}
if (!mode_excluded && this_rd != INT64_MAX) {
for (i = 0; i < TX_MODES && tx_cache[i] < INT64_MAX; i++) {
int64_t adj_rd = INT64_MAX;
adj_rd = this_rd + tx_cache[i] - tx_cache[cm->tx_mode];
if (adj_rd < best_tx_rd[i])
best_tx_rd[i] = adj_rd;
}
}
if (early_term)
break;
if (x->skip && !comp_pred)
break;
}
// The inter modes' rate costs are not calculated precisely in some cases.
// Therefore, sometimes, NEWMV is chosen instead of NEARESTMV, NEARMV, and
// ZEROMV. Here, checks are added for those cases, and the mode decisions
// are corrected.
if (best_mbmode.mode == NEWMV) {
const MV_REFERENCE_FRAME refs[2] = {best_mbmode.ref_frame[0],
best_mbmode.ref_frame[1]};
int comp_pred_mode = refs[1] > INTRA_FRAME;
if (frame_mv[NEARESTMV][refs[0]].as_int == best_mbmode.mv[0].as_int &&
((comp_pred_mode && frame_mv[NEARESTMV][refs[1]].as_int ==
best_mbmode.mv[1].as_int) || !comp_pred_mode))
best_mbmode.mode = NEARESTMV;
else if (frame_mv[NEARMV][refs[0]].as_int == best_mbmode.mv[0].as_int &&
((comp_pred_mode && frame_mv[NEARMV][refs[1]].as_int ==
best_mbmode.mv[1].as_int) || !comp_pred_mode))
best_mbmode.mode = NEARMV;
else if (best_mbmode.mv[0].as_int == 0 &&
((comp_pred_mode && best_mbmode.mv[1].as_int == 0) || !comp_pred_mode))
best_mbmode.mode = ZEROMV;
}
if (best_mode_index < 0 || best_rd >= best_rd_so_far)
return INT64_MAX;
// If we used an estimate for the uv intra rd in the loop above...
if (cpi->sf.use_uv_intra_rd_estimate) {
// Do Intra UV best rd mode selection if best mode choice above was intra.
if (vp9_mode_order[best_mode_index].ref_frame[0] == INTRA_FRAME) {
TX_SIZE uv_tx_size;
*mbmi = best_mbmode;
uv_tx_size = get_uv_tx_size(mbmi, &xd->plane[1]);
rd_pick_intra_sbuv_mode(cpi, x, ctx, &rate_uv_intra[uv_tx_size],
&rate_uv_tokenonly[uv_tx_size],
&dist_uv[uv_tx_size],
&skip_uv[uv_tx_size],
bsize < BLOCK_8X8 ? BLOCK_8X8 : bsize,
uv_tx_size);
}
}
assert((cm->interp_filter == SWITCHABLE) ||
(cm->interp_filter == best_mbmode.interp_filter) ||
!is_inter_block(&best_mbmode));
update_rd_thresh_fact(cpi, bsize, best_mode_index);
// macroblock modes
*mbmi = best_mbmode;
x->skip |= best_skip2;
for (i = 0; i < REFERENCE_MODES; ++i) {
if (best_pred_rd[i] == INT64_MAX)
best_pred_diff[i] = INT_MIN;
else
best_pred_diff[i] = best_rd - best_pred_rd[i];
}
if (!x->skip) {
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) {
if (best_filter_rd[i] == INT64_MAX)
best_filter_diff[i] = 0;
else
best_filter_diff[i] = best_rd - best_filter_rd[i];
}
if (cm->interp_filter == SWITCHABLE)
assert(best_filter_diff[SWITCHABLE_FILTERS] == 0);
for (i = 0; i < TX_MODES; i++) {
if (best_tx_rd[i] == INT64_MAX)
best_tx_diff[i] = 0;
else
best_tx_diff[i] = best_rd - best_tx_rd[i];
}
} else {
vp9_zero(best_filter_diff);
vp9_zero(best_tx_diff);
}
set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]);
store_coding_context(x, ctx, best_mode_index, best_pred_diff,
best_tx_diff, best_filter_diff, best_mode_skippable);
return best_rd;
}
int64_t vp9_rd_pick_inter_mode_sb_seg_skip(VP9_COMP *cpi, MACROBLOCK *x,
int *returnrate,
int64_t *returndistortion,
BLOCK_SIZE bsize,
PICK_MODE_CONTEXT *ctx,
int64_t best_rd_so_far) {
VP9_COMMON *const cm = &cpi->common;
RD_OPT *const rd_opt = &cpi->rd;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
unsigned char segment_id = mbmi->segment_id;
const int comp_pred = 0;
int i;
int64_t best_tx_diff[TX_MODES];
int64_t best_pred_diff[REFERENCE_MODES];
int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS];
unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES];
vp9_prob comp_mode_p;
INTERP_FILTER best_filter = SWITCHABLE;
int64_t this_rd = INT64_MAX;
int rate2 = 0;
const int64_t distortion2 = 0;
x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH;
estimate_ref_frame_costs(cm, xd, segment_id, ref_costs_single, ref_costs_comp,
&comp_mode_p);
for (i = 0; i < MAX_REF_FRAMES; ++i)
x->pred_sse[i] = INT_MAX;
for (i = LAST_FRAME; i < MAX_REF_FRAMES; ++i)
x->pred_mv_sad[i] = INT_MAX;
*returnrate = INT_MAX;
assert(vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP));
mbmi->mode = ZEROMV;
mbmi->uv_mode = DC_PRED;
mbmi->ref_frame[0] = LAST_FRAME;
mbmi->ref_frame[1] = NONE;
mbmi->mv[0].as_int = 0;
x->skip = 1;
// Search for best switchable filter by checking the variance of
// pred error irrespective of whether the filter will be used
rd_opt->mask_filter = 0;
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
rd_opt->filter_cache[i] = INT64_MAX;
if (cm->interp_filter != BILINEAR) {
best_filter = EIGHTTAP;
if (cm->interp_filter == SWITCHABLE &&
x->source_variance >= cpi->sf.disable_filter_search_var_thresh) {
int rs;
int best_rs = INT_MAX;
for (i = 0; i < SWITCHABLE_FILTERS; ++i) {
mbmi->interp_filter = i;
rs = vp9_get_switchable_rate(cpi);
if (rs < best_rs) {
best_rs = rs;
best_filter = mbmi->interp_filter;
}
}
}
}
// Set the appropriate filter
if (cm->interp_filter == SWITCHABLE) {
mbmi->interp_filter = best_filter;
rate2 += vp9_get_switchable_rate(cpi);
} else {
mbmi->interp_filter = cm->interp_filter;
}
if (cm->reference_mode == REFERENCE_MODE_SELECT)
rate2 += vp9_cost_bit(comp_mode_p, comp_pred);
// Estimate the reference frame signaling cost and add it
// to the rolling cost variable.
rate2 += ref_costs_single[LAST_FRAME];
this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
*returnrate = rate2;
*returndistortion = distortion2;
if (this_rd >= best_rd_so_far)
return INT64_MAX;
assert((cm->interp_filter == SWITCHABLE) ||
(cm->interp_filter == mbmi->interp_filter));
update_rd_thresh_fact(cpi, bsize, THR_ZEROMV);
vp9_zero(best_pred_diff);
vp9_zero(best_filter_diff);
vp9_zero(best_tx_diff);
if (!x->select_tx_size)
swap_block_ptr(x, ctx, 1, 0, 0, MAX_MB_PLANE);
store_coding_context(x, ctx, THR_ZEROMV,
best_pred_diff, best_tx_diff, best_filter_diff, 0);
return this_rd;
}
int64_t vp9_rd_pick_inter_mode_sub8x8(VP9_COMP *cpi, MACROBLOCK *x,
const TileInfo *const tile,
int mi_row, int mi_col,
int *returnrate,
int64_t *returndistortion,
BLOCK_SIZE bsize,
PICK_MODE_CONTEXT *ctx,
int64_t best_rd_so_far) {
VP9_COMMON *const cm = &cpi->common;
RD_OPT *const rd_opt = &cpi->rd;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
const struct segmentation *const seg = &cm->seg;
MV_REFERENCE_FRAME ref_frame, second_ref_frame;
unsigned char segment_id = mbmi->segment_id;
int comp_pred, i;
int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES];
struct buf_2d yv12_mb[4][MAX_MB_PLANE];
static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG,
VP9_ALT_FLAG };
int64_t best_rd = best_rd_so_far;
int64_t best_yrd = best_rd_so_far; // FIXME(rbultje) more precise
static const int64_t best_tx_diff[TX_MODES] = { 0 };
int64_t best_pred_diff[REFERENCE_MODES];
int64_t best_pred_rd[REFERENCE_MODES];
int64_t best_filter_rd[SWITCHABLE_FILTER_CONTEXTS];
int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS];
MB_MODE_INFO best_mbmode;
int ref_index, best_ref_index = 0;
unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES];
vp9_prob comp_mode_p;
int64_t best_inter_rd = INT64_MAX;
MV_REFERENCE_FRAME best_inter_ref_frame = LAST_FRAME;
INTERP_FILTER tmp_best_filter = SWITCHABLE;
int rate_uv_intra, rate_uv_tokenonly;
int64_t dist_uv;
int skip_uv;
PREDICTION_MODE mode_uv = DC_PRED;
int intra_cost_penalty = 20 * vp9_dc_quant(cm->base_qindex, cm->y_dc_delta_q);
int_mv seg_mvs[4][MAX_REF_FRAMES];
b_mode_info best_bmodes[4];
int best_skip2 = 0;
int mode_skip_mask = 0;
x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH;
vpx_memset(x->zcoeff_blk[TX_4X4], 0, 4);
vp9_zero(best_mbmode);
for (i = 0; i < 4; i++) {
int j;
for (j = 0; j < MAX_REF_FRAMES; j++)
seg_mvs[i][j].as_int = INVALID_MV;
}
estimate_ref_frame_costs(cm, xd, segment_id, ref_costs_single, ref_costs_comp,
&comp_mode_p);
for (i = 0; i < REFERENCE_MODES; ++i)
best_pred_rd[i] = INT64_MAX;
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++)
best_filter_rd[i] = INT64_MAX;
rate_uv_intra = INT_MAX;
*returnrate = INT_MAX;
for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ref_frame++) {
if (cpi->ref_frame_flags & flag_list[ref_frame]) {
setup_buffer_inter(cpi, x, tile,
ref_frame, bsize, mi_row, mi_col,
frame_mv[NEARESTMV], frame_mv[NEARMV],
yv12_mb);
}
frame_mv[NEWMV][ref_frame].as_int = INVALID_MV;
frame_mv[ZEROMV][ref_frame].as_int = 0;
}
for (ref_index = 0; ref_index < MAX_REFS; ++ref_index) {
int mode_excluded = 0;
int64_t this_rd = INT64_MAX;
int disable_skip = 0;
int compmode_cost = 0;
int rate2 = 0, rate_y = 0, rate_uv = 0;
int64_t distortion2 = 0, distortion_y = 0, distortion_uv = 0;
int skippable = 0;
int i;
int this_skip2 = 0;
int64_t total_sse = INT_MAX;
int early_term = 0;
ref_frame = vp9_ref_order[ref_index].ref_frame[0];
second_ref_frame = vp9_ref_order[ref_index].ref_frame[1];
// Look at the reference frame of the best mode so far and set the
// skip mask to look at a subset of the remaining modes.
if (ref_index > 2 && cpi->sf.mode_skip_start < MAX_MODES) {
if (ref_index == 3) {
switch (vp9_ref_order[best_ref_index].ref_frame[0]) {
case INTRA_FRAME:
mode_skip_mask = 0;
break;
case LAST_FRAME:
mode_skip_mask = 0x0010;
break;
case GOLDEN_FRAME:
mode_skip_mask = 0x0008;
break;
case ALTREF_FRAME:
mode_skip_mask = 0x0000;
break;
case NONE:
case MAX_REF_FRAMES:
assert(0 && "Invalid Reference frame");
break;
}
}
if (mode_skip_mask & (1 << ref_index))
continue;
}
// Test best rd so far against threshold for trying this mode.
if (rd_less_than_thresh(best_rd,
rd_opt->threshes[segment_id][bsize][ref_index],
rd_opt->thresh_freq_fact[bsize][ref_index]))
continue;
if (ref_frame > INTRA_FRAME &&
!(cpi->ref_frame_flags & flag_list[ref_frame])) {
continue;
}
comp_pred = second_ref_frame > INTRA_FRAME;
if (comp_pred) {
if (!cm->allow_comp_inter_inter)
continue;
if (!(cpi->ref_frame_flags & flag_list[second_ref_frame]))
continue;
// Do not allow compound prediction if the segment level reference frame
// feature is in use as in this case there can only be one reference.
if (vp9_segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME))
continue;
if ((cpi->sf.mode_search_skip_flags & FLAG_SKIP_COMP_BESTINTRA) &&
vp9_ref_order[best_ref_index].ref_frame[0] == INTRA_FRAME)
continue;
if ((cpi->sf.mode_search_skip_flags & FLAG_SKIP_COMP_REFMISMATCH) &&
ref_frame != best_inter_ref_frame &&
second_ref_frame != best_inter_ref_frame)
continue;
}
// TODO(jingning, jkoleszar): scaling reference frame not supported for
// sub8x8 blocks.
if (ref_frame > INTRA_FRAME &&
vp9_is_scaled(&cm->frame_refs[ref_frame - 1].sf))
continue;
if (second_ref_frame > INTRA_FRAME &&
vp9_is_scaled(&cm->frame_refs[second_ref_frame - 1].sf))
continue;
if (comp_pred)
mode_excluded = cm->reference_mode == SINGLE_REFERENCE;
else if (ref_frame != INTRA_FRAME)
mode_excluded = cm->reference_mode == COMPOUND_REFERENCE;
// If the segment reference frame feature is enabled....
// then do nothing if the current ref frame is not allowed..
if (vp9_segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME) &&
vp9_get_segdata(seg, segment_id, SEG_LVL_REF_FRAME) !=
(int)ref_frame) {
continue;
// Disable this drop out case if the ref frame
// segment level feature is enabled for this segment. This is to
// prevent the possibility that we end up unable to pick any mode.
} else if (!vp9_segfeature_active(seg, segment_id,
SEG_LVL_REF_FRAME)) {
// Only consider ZEROMV/ALTREF_FRAME for alt ref frame,
// unless ARNR filtering is enabled in which case we want
// an unfiltered alternative. We allow near/nearest as well
// because they may result in zero-zero MVs but be cheaper.
if (cpi->rc.is_src_frame_alt_ref && (cpi->oxcf.arnr_max_frames == 0))
continue;
}
mbmi->tx_size = TX_4X4;
mbmi->uv_mode = DC_PRED;
mbmi->ref_frame[0] = ref_frame;
mbmi->ref_frame[1] = second_ref_frame;
// Evaluate all sub-pel filters irrespective of whether we can use
// them for this frame.
mbmi->interp_filter = cm->interp_filter == SWITCHABLE ? EIGHTTAP
: cm->interp_filter;
x->skip = 0;
set_ref_ptrs(cm, xd, ref_frame, second_ref_frame);
// Select prediction reference frames.
for (i = 0; i < MAX_MB_PLANE; i++) {
xd->plane[i].pre[0] = yv12_mb[ref_frame][i];
if (comp_pred)
xd->plane[i].pre[1] = yv12_mb[second_ref_frame][i];
}
if (ref_frame == INTRA_FRAME) {
int rate;
if (rd_pick_intra_sub_8x8_y_mode(cpi, x, &rate, &rate_y,
&distortion_y, best_rd) >= best_rd)
continue;
rate2 += rate;
rate2 += intra_cost_penalty;
distortion2 += distortion_y;
if (rate_uv_intra == INT_MAX) {
choose_intra_uv_mode(cpi, ctx, bsize, TX_4X4,
&rate_uv_intra,
&rate_uv_tokenonly,
&dist_uv, &skip_uv,
&mode_uv);
}
rate2 += rate_uv_intra;
rate_uv = rate_uv_tokenonly;
distortion2 += dist_uv;
distortion_uv = dist_uv;
mbmi->uv_mode = mode_uv;
} else {
int rate;
int64_t distortion;
int64_t this_rd_thresh;
int64_t tmp_rd, tmp_best_rd = INT64_MAX, tmp_best_rdu = INT64_MAX;
int tmp_best_rate = INT_MAX, tmp_best_ratey = INT_MAX;
int64_t tmp_best_distortion = INT_MAX, tmp_best_sse, uv_sse;
int tmp_best_skippable = 0;
int switchable_filter_index;
int_mv *second_ref = comp_pred ?
&mbmi->ref_mvs[second_ref_frame][0] : NULL;
b_mode_info tmp_best_bmodes[16];
MB_MODE_INFO tmp_best_mbmode;
BEST_SEG_INFO bsi[SWITCHABLE_FILTERS];
int pred_exists = 0;
int uv_skippable;
this_rd_thresh = (ref_frame == LAST_FRAME) ?
rd_opt->threshes[segment_id][bsize][THR_LAST] :
rd_opt->threshes[segment_id][bsize][THR_ALTR];
this_rd_thresh = (ref_frame == GOLDEN_FRAME) ?
rd_opt->threshes[segment_id][bsize][THR_GOLD] : this_rd_thresh;
rd_opt->mask_filter = 0;
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
rd_opt->filter_cache[i] = INT64_MAX;
if (cm->interp_filter != BILINEAR) {
tmp_best_filter = EIGHTTAP;
if (x->source_variance < cpi->sf.disable_filter_search_var_thresh) {
tmp_best_filter = EIGHTTAP;
} else if (cpi->sf.adaptive_pred_interp_filter == 1 &&
ctx->pred_interp_filter < SWITCHABLE) {
tmp_best_filter = ctx->pred_interp_filter;
} else if (cpi->sf.adaptive_pred_interp_filter == 2) {
tmp_best_filter = ctx->pred_interp_filter < SWITCHABLE ?
ctx->pred_interp_filter : 0;
} else {
for (switchable_filter_index = 0;
switchable_filter_index < SWITCHABLE_FILTERS;
++switchable_filter_index) {
int newbest, rs;
int64_t rs_rd;
mbmi->interp_filter = switchable_filter_index;
tmp_rd = rd_pick_best_sub8x8_mode(cpi, x, tile,
&mbmi->ref_mvs[ref_frame][0],
second_ref, best_yrd, &rate,
&rate_y, &distortion,
&skippable, &total_sse,
(int) this_rd_thresh, seg_mvs,
bsi, switchable_filter_index,
mi_row, mi_col);
if (tmp_rd == INT64_MAX)
continue;
rs = vp9_get_switchable_rate(cpi);
rs_rd = RDCOST(x->rdmult, x->rddiv, rs, 0);
rd_opt->filter_cache[switchable_filter_index] = tmp_rd;
rd_opt->filter_cache[SWITCHABLE_FILTERS] =
MIN(rd_opt->filter_cache[SWITCHABLE_FILTERS],
tmp_rd + rs_rd);
if (cm->interp_filter == SWITCHABLE)
tmp_rd += rs_rd;
rd_opt->mask_filter = MAX(rd_opt->mask_filter, tmp_rd);
newbest = (tmp_rd < tmp_best_rd);
if (newbest) {
tmp_best_filter = mbmi->interp_filter;
tmp_best_rd = tmp_rd;
}
if ((newbest && cm->interp_filter == SWITCHABLE) ||
(mbmi->interp_filter == cm->interp_filter &&
cm->interp_filter != SWITCHABLE)) {
tmp_best_rdu = tmp_rd;
tmp_best_rate = rate;
tmp_best_ratey = rate_y;
tmp_best_distortion = distortion;
tmp_best_sse = total_sse;
tmp_best_skippable = skippable;
tmp_best_mbmode = *mbmi;
for (i = 0; i < 4; i++) {
tmp_best_bmodes[i] = xd->mi[0]->bmi[i];
x->zcoeff_blk[TX_4X4][i] = !x->plane[0].eobs[i];
}
pred_exists = 1;
if (switchable_filter_index == 0 &&
cpi->sf.use_rd_breakout &&
best_rd < INT64_MAX) {
if (tmp_best_rdu / 2 > best_rd) {
// skip searching the other filters if the first is
// already substantially larger than the best so far
tmp_best_filter = mbmi->interp_filter;
tmp_best_rdu = INT64_MAX;
break;
}
}
}
} // switchable_filter_index loop
}
}
if (tmp_best_rdu == INT64_MAX && pred_exists)
continue;
mbmi->interp_filter = (cm->interp_filter == SWITCHABLE ?
tmp_best_filter : cm->interp_filter);
if (!pred_exists) {
// Handles the special case when a filter that is not in the
// switchable list (bilinear, 6-tap) is indicated at the frame level
tmp_rd = rd_pick_best_sub8x8_mode(cpi, x, tile,
&mbmi->ref_mvs[ref_frame][0],
second_ref, best_yrd, &rate, &rate_y,
&distortion, &skippable, &total_sse,
(int) this_rd_thresh, seg_mvs, bsi, 0,
mi_row, mi_col);
if (tmp_rd == INT64_MAX)
continue;
} else {
total_sse = tmp_best_sse;
rate = tmp_best_rate;
rate_y = tmp_best_ratey;
distortion = tmp_best_distortion;
skippable = tmp_best_skippable;
*mbmi = tmp_best_mbmode;
for (i = 0; i < 4; i++)
xd->mi[0]->bmi[i] = tmp_best_bmodes[i];
}
rate2 += rate;
distortion2 += distortion;
if (cm->interp_filter == SWITCHABLE)
rate2 += vp9_get_switchable_rate(cpi);
if (!mode_excluded)
mode_excluded = comp_pred ? cm->reference_mode == SINGLE_REFERENCE
: cm->reference_mode == COMPOUND_REFERENCE;
compmode_cost = vp9_cost_bit(comp_mode_p, comp_pred);
tmp_best_rdu = best_rd -
MIN(RDCOST(x->rdmult, x->rddiv, rate2, distortion2),
RDCOST(x->rdmult, x->rddiv, 0, total_sse));
if (tmp_best_rdu > 0) {
// If even the 'Y' rd value of split is higher than best so far
// then dont bother looking at UV
vp9_build_inter_predictors_sbuv(&x->e_mbd, mi_row, mi_col,
BLOCK_8X8);
super_block_uvrd(cpi, x, &rate_uv, &distortion_uv, &uv_skippable,
&uv_sse, BLOCK_8X8, tmp_best_rdu);
if (rate_uv == INT_MAX)
continue;
rate2 += rate_uv;
distortion2 += distortion_uv;
skippable = skippable && uv_skippable;
total_sse += uv_sse;
}
}
if (cm->reference_mode == REFERENCE_MODE_SELECT)
rate2 += compmode_cost;
// Estimate the reference frame signaling cost and add it
// to the rolling cost variable.
if (second_ref_frame > INTRA_FRAME) {
rate2 += ref_costs_comp[ref_frame];
} else {
rate2 += ref_costs_single[ref_frame];
}
if (!disable_skip) {
// Skip is never coded at the segment level for sub8x8 blocks and instead
// always coded in the bitstream at the mode info level.
if (ref_frame != INTRA_FRAME && !xd->lossless) {
if (RDCOST(x->rdmult, x->rddiv, rate_y + rate_uv, distortion2) <
RDCOST(x->rdmult, x->rddiv, 0, total_sse)) {
// Add in the cost of the no skip flag.
rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
} else {
// FIXME(rbultje) make this work for splitmv also
rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
distortion2 = total_sse;
assert(total_sse >= 0);
rate2 -= (rate_y + rate_uv);
rate_y = 0;
rate_uv = 0;
this_skip2 = 1;
}
} else {
// Add in the cost of the no skip flag.
rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
}
// Calculate the final RD estimate for this mode.
this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
}
// Keep record of best inter rd with single reference
if (is_inter_block(mbmi) &&
!has_second_ref(mbmi) &&
!mode_excluded &&
this_rd < best_inter_rd) {
best_inter_rd = this_rd;
best_inter_ref_frame = ref_frame;
}
if (!disable_skip && ref_frame == INTRA_FRAME) {
for (i = 0; i < REFERENCE_MODES; ++i)
best_pred_rd[i] = MIN(best_pred_rd[i], this_rd);
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++)
best_filter_rd[i] = MIN(best_filter_rd[i], this_rd);
}
// Did this mode help.. i.e. is it the new best mode
if (this_rd < best_rd || x->skip) {
if (!mode_excluded) {
int max_plane = MAX_MB_PLANE;
// Note index of best mode so far
best_ref_index = ref_index;
if (ref_frame == INTRA_FRAME) {
/* required for left and above block mv */
mbmi->mv[0].as_int = 0;
max_plane = 1;
}
*returnrate = rate2;
*returndistortion = distortion2;
best_rd = this_rd;
best_yrd = best_rd -
RDCOST(x->rdmult, x->rddiv, rate_uv, distortion_uv);
best_mbmode = *mbmi;
best_skip2 = this_skip2;
if (!x->select_tx_size)
swap_block_ptr(x, ctx, 1, 0, 0, max_plane);
vpx_memcpy(ctx->zcoeff_blk, x->zcoeff_blk[TX_4X4],
sizeof(uint8_t) * ctx->num_4x4_blk);
for (i = 0; i < 4; i++)
best_bmodes[i] = xd->mi[0]->bmi[i];
// TODO(debargha): enhance this test with a better distortion prediction
// based on qp, activity mask and history
if ((cpi->sf.mode_search_skip_flags & FLAG_EARLY_TERMINATE) &&
(ref_index > MIN_EARLY_TERM_INDEX)) {
const int qstep = xd->plane[0].dequant[1];
// TODO(debargha): Enhance this by specializing for each mode_index
int scale = 4;
if (x->source_variance < UINT_MAX) {
const int var_adjust = (x->source_variance < 16);
scale -= var_adjust;
}
if (ref_frame > INTRA_FRAME &&
distortion2 * scale < qstep * qstep) {
early_term = 1;
}
}
}
}
/* keep record of best compound/single-only prediction */
if (!disable_skip && ref_frame != INTRA_FRAME) {
int64_t single_rd, hybrid_rd, single_rate, hybrid_rate;
if (cm->reference_mode == REFERENCE_MODE_SELECT) {
single_rate = rate2 - compmode_cost;
hybrid_rate = rate2;
} else {
single_rate = rate2;
hybrid_rate = rate2 + compmode_cost;
}
single_rd = RDCOST(x->rdmult, x->rddiv, single_rate, distortion2);
hybrid_rd = RDCOST(x->rdmult, x->rddiv, hybrid_rate, distortion2);
if (!comp_pred && single_rd < best_pred_rd[SINGLE_REFERENCE]) {
best_pred_rd[SINGLE_REFERENCE] = single_rd;
} else if (comp_pred && single_rd < best_pred_rd[COMPOUND_REFERENCE]) {
best_pred_rd[COMPOUND_REFERENCE] = single_rd;
}
if (hybrid_rd < best_pred_rd[REFERENCE_MODE_SELECT])
best_pred_rd[REFERENCE_MODE_SELECT] = hybrid_rd;
}
/* keep record of best filter type */
if (!mode_excluded && !disable_skip && ref_frame != INTRA_FRAME &&
cm->interp_filter != BILINEAR) {
int64_t ref = rd_opt->filter_cache[cm->interp_filter == SWITCHABLE ?
SWITCHABLE_FILTERS : cm->interp_filter];
int64_t adj_rd;
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) {
if (ref == INT64_MAX)
adj_rd = 0;
else if (rd_opt->filter_cache[i] == INT64_MAX)
// when early termination is triggered, the encoder does not have
// access to the rate-distortion cost. it only knows that the cost
// should be above the maximum valid value. hence it takes the known
// maximum plus an arbitrary constant as the rate-distortion cost.
adj_rd = rd_opt->mask_filter - ref + 10;
else
adj_rd = rd_opt->filter_cache[i] - ref;
adj_rd += this_rd;
best_filter_rd[i] = MIN(best_filter_rd[i], adj_rd);
}
}
if (early_term)
break;
if (x->skip && !comp_pred)
break;
}
if (best_rd >= best_rd_so_far)
return INT64_MAX;
// If we used an estimate for the uv intra rd in the loop above...
if (cpi->sf.use_uv_intra_rd_estimate) {
// Do Intra UV best rd mode selection if best mode choice above was intra.
if (vp9_ref_order[best_ref_index].ref_frame[0] == INTRA_FRAME) {
*mbmi = best_mbmode;
rd_pick_intra_sbuv_mode(cpi, x, ctx, &rate_uv_intra,
&rate_uv_tokenonly,
&dist_uv,
&skip_uv,
BLOCK_8X8, TX_4X4);
}
}
if (best_rd == INT64_MAX) {
*returnrate = INT_MAX;
*returndistortion = INT64_MAX;
return best_rd;
}
assert((cm->interp_filter == SWITCHABLE) ||
(cm->interp_filter == best_mbmode.interp_filter) ||
!is_inter_block(&best_mbmode));
update_rd_thresh_fact(cpi, bsize, best_ref_index);
// macroblock modes
*mbmi = best_mbmode;
x->skip |= best_skip2;
if (!is_inter_block(&best_mbmode)) {
for (i = 0; i < 4; i++)
xd->mi[0]->bmi[i].as_mode = best_bmodes[i].as_mode;
} else {
for (i = 0; i < 4; ++i)
vpx_memcpy(&xd->mi[0]->bmi[i], &best_bmodes[i], sizeof(b_mode_info));
mbmi->mv[0].as_int = xd->mi[0]->bmi[3].as_mv[0].as_int;
mbmi->mv[1].as_int = xd->mi[0]->bmi[3].as_mv[1].as_int;
}
for (i = 0; i < REFERENCE_MODES; ++i) {
if (best_pred_rd[i] == INT64_MAX)
best_pred_diff[i] = INT_MIN;
else
best_pred_diff[i] = best_rd - best_pred_rd[i];
}
if (!x->skip) {
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) {
if (best_filter_rd[i] == INT64_MAX)
best_filter_diff[i] = 0;
else
best_filter_diff[i] = best_rd - best_filter_rd[i];
}
if (cm->interp_filter == SWITCHABLE)
assert(best_filter_diff[SWITCHABLE_FILTERS] == 0);
} else {
vp9_zero(best_filter_diff);
}
set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]);
store_coding_context(x, ctx, best_ref_index,
best_pred_diff, best_tx_diff, best_filter_diff, 0);
return best_rd;
}