diff options
Diffstat (limited to 'media/libvpx/vp9/encoder/vp9_rdopt.c')
| -rw-r--r-- | media/libvpx/vp9/encoder/vp9_rdopt.c | 4313 |
1 files changed, 4313 insertions, 0 deletions
diff --git a/media/libvpx/vp9/encoder/vp9_rdopt.c b/media/libvpx/vp9/encoder/vp9_rdopt.c new file mode 100644 index 000000000..9fa258c61 --- /dev/null +++ b/media/libvpx/vp9/encoder/vp9_rdopt.c @@ -0,0 +1,4313 @@ +/* + * 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 "vpx_ports/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_scan.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" +#include "vp9/encoder/vp9_aq_variance.h" + +#define LAST_FRAME_MODE_MASK ((1 << GOLDEN_FRAME) | (1 << ALTREF_FRAME) | \ + (1 << INTRA_FRAME)) +#define GOLDEN_FRAME_MODE_MASK ((1 << LAST_FRAME) | (1 << ALTREF_FRAME) | \ + (1 << INTRA_FRAME)) +#define ALT_REF_MODE_MASK ((1 << LAST_FRAME) | (1 << GOLDEN_FRAME) | \ + (1 << INTRA_FRAME)) + +#define SECOND_REF_FRAME_MASK ((1 << ALTREF_FRAME) | 0x01) + +#define MIN_EARLY_TERM_INDEX 3 +#define NEW_MV_DISCOUNT_FACTOR 8 + +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; +}; + +#define LAST_NEW_MV_INDEX 6 +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}}, + {NEARMV, {GOLDEN_FRAME, NONE}}, + + {ZEROMV, {LAST_FRAME, NONE}}, + {ZEROMV, {GOLDEN_FRAME, NONE}}, + {ZEROMV, {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, ALTREF_FRAME}}, + {NEWMV, {GOLDEN_FRAME, ALTREF_FRAME}}, + + {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 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, + int *skip_txfm_sb, int64_t *skip_sse_sb) { + // 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; + int64_t total_sse = 0; + int skip_flag = 1; + const int shift = 6; + 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]; + const int64_t dc_thr = p->quant_thred[0] >> shift; + const int64_t ac_thr = p->quant_thred[1] >> shift; + // The low thresholds are used to measure if the prediction errors are + // low enough so that we can skip the mode search. + const int64_t low_dc_thr = MIN(50, dc_thr >> 2); + const int64_t low_ac_thr = MIN(80, ac_thr >> 2); + 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; + int low_err_skip = 0; + + 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; + + x->skip_txfm[(i << 2) + block_idx] = 0; + if (!x->select_tx_size) { + // Check if all ac coefficients can be quantized to zero. + if (var < ac_thr || var == 0) { + x->skip_txfm[(i << 2) + block_idx] = 2; + + // Check if dc coefficient can be quantized to zero. + if (sse - var < dc_thr || sse == var) { + x->skip_txfm[(i << 2) + block_idx] = 1; + + if (!sse || (var < low_ac_thr && sse - var < low_dc_thr)) + low_err_skip = 1; + } + } + } + + if (skip_flag && !low_err_skip) + skip_flag = 0; + + if (i == 0) + x->pred_sse[ref] += sse; + } + } + + total_sse += sum_sse; + + // Fast approximate the modelling function. + if (cpi->oxcf.speed > 4) { + int64_t rate; + const int64_t square_error = sum_sse; + int quantizer = (pd->dequant[1] >> 3); +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + quantizer >>= (xd->bd - 8); + } +#endif // CONFIG_VP9_HIGHBITDEPTH + + if (quantizer < 120) + rate = (square_error * (280 - quantizer)) >> 8; + else + rate = 0; + dist = (square_error * quantizer) >> 8; + rate_sum += rate; + dist_sum += dist; + } else { +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + vp9_model_rd_from_var_lapndz(sum_sse, num_pels_log2_lookup[bs], + pd->dequant[1] >> (xd->bd - 5), + &rate, &dist); + } else { + vp9_model_rd_from_var_lapndz(sum_sse, num_pels_log2_lookup[bs], + pd->dequant[1] >> 3, &rate, &dist); + } +#else + vp9_model_rd_from_var_lapndz(sum_sse, num_pels_log2_lookup[bs], + pd->dequant[1] >> 3, &rate, &dist); +#endif // CONFIG_VP9_HIGHBITDEPTH + rate_sum += rate; + dist_sum += dist; + } + } + + *skip_txfm_sb = skip_flag; + *skip_sse_sb = total_sse << 4; + *out_rate_sum = (int)rate_sum; + *out_dist_sum = dist_sum << 4; +} + +int64_t vp9_block_error_c(const tran_low_t *coeff, const tran_low_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; +} + +int64_t vp9_block_error_fp_c(const int16_t *coeff, const int16_t *dqcoeff, + int block_size) { + int i; + int64_t error = 0; + + for (i = 0; i < block_size; i++) { + const int diff = coeff[i] - dqcoeff[i]; + error += diff * diff; + } + + return error; +} + +#if CONFIG_VP9_HIGHBITDEPTH +int64_t vp9_highbd_block_error_c(const tran_low_t *coeff, + const tran_low_t *dqcoeff, + intptr_t block_size, + int64_t *ssz, int bd) { + int i; + int64_t error = 0, sqcoeff = 0; + int shift = 2 * (bd - 8); + int rounding = shift > 0 ? 1 << (shift - 1) : 0; + + for (i = 0; i < block_size; i++) { + const int64_t diff = coeff[i] - dqcoeff[i]; + error += diff * diff; + sqcoeff += (int64_t)coeff[i] * (int64_t)coeff[i]; + } + assert(error >= 0 && sqcoeff >= 0); + error = (error + rounding) >> shift; + sqcoeff = (sqcoeff + rounding) >> shift; + + *ssz = sqcoeff; + return error; +} +#endif // CONFIG_VP9_HIGHBITDEPTH + +/* 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 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 tran_low_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; +#if CONFIG_VP9_HIGHBITDEPTH + const int16_t *cat6_high_cost = vp9_get_high_cost_table(xd->bd); +#else + const int16_t *cat6_high_cost = vp9_get_high_cost_table(8); +#endif + + // 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]; + int16_t prev_t; + EXTRABIT e; + vp9_get_token_extra(v, &prev_t, &e); + cost = (*token_costs)[0][pt][prev_t] + + vp9_get_cost(prev_t, e, cat6_high_cost); + + token_cache[0] = vp9_pt_energy_class[prev_t]; + ++token_costs; + + // ac tokens + for (c = 1; c < eob; c++) { + const int rc = scan[c]; + int16_t t; + + v = qcoeff[rc]; + vp9_get_token_extra(v, &t, &e); + if (use_fast_coef_costing) { + cost += (*token_costs)[!prev_t][!prev_t][t] + + vp9_get_cost(t, e, cat6_high_cost); + } else { + pt = get_coef_context(nb, token_cache, c); + cost += (*token_costs)[!prev_t][pt][t] + + vp9_get_cost(t, e, cat6_high_cost); + 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; +} + +#if CONFIG_VP9_HIGHBITDEPTH +static void dist_block(int plane, int block, TX_SIZE tx_size, + struct rdcost_block_args* args, int bd) { +#else +static void dist_block(int plane, int block, TX_SIZE tx_size, + struct rdcost_block_args* args) { +#endif // CONFIG_VP9_HIGHBITDEPTH + 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; + tran_low_t *const coeff = BLOCK_OFFSET(p->coeff, block); + tran_low_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); +#if CONFIG_VP9_HIGHBITDEPTH + args->dist = vp9_highbd_block_error(coeff, dqcoeff, 16 << ss_txfrm_size, + &this_sse, bd) >> shift; +#else + args->dist = vp9_block_error(coeff, dqcoeff, 16 << ss_txfrm_size, + &this_sse) >> shift; +#endif // CONFIG_VP9_HIGHBITDEPTH + 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); +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + p >>= ((xd->bd - 8) * 2); + } +#endif // CONFIG_VP9_HIGHBITDEPTH + 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)) { + struct encode_b_args arg = {x, NULL, &mbmi->skip}; + vp9_encode_block_intra(plane, block, plane_bsize, tx_size, &arg); +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + dist_block(plane, block, tx_size, args, xd->bd); + } else { + dist_block(plane, block, tx_size, args, 8); + } +#else + dist_block(plane, block, tx_size, args); +#endif // CONFIG_VP9_HIGHBITDEPTH + } 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); +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + dist_block(plane, block, tx_size, args, xd->bd); + } else { + dist_block(plane, block, tx_size, args, 8); + } +#else + dist_block(plane, block, tx_size, args); +#endif // CONFIG_VP9_HIGHBITDEPTH + } else if (x->skip_txfm[(plane << 2) + (block >> (tx_size << 1))] == 2) { + // compute DC coefficient + tran_low_t *const coeff = BLOCK_OFFSET(x->plane[plane].coeff, block); + tran_low_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]) { + const int64_t orig_sse = (int64_t)coeff[0] * coeff[0]; + const int64_t resd_sse = coeff[0] - dqcoeff[0]; + int64_t dc_correct = orig_sse - resd_sse * resd_sse; +#if CONFIG_VP9_HIGHBITDEPTH + dc_correct >>= ((xd->bd - 8) * 2); +#endif + if (tx_size != TX_32X32) + dc_correct >>= 2; + + args->dist = MAX(0, args->sse - dc_correct); + } + } 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); +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + dist_block(plane, block, tx_size, args, xd->bd); + } else { + dist_block(plane, block, tx_size, args, 8); + } +#else + dist_block(plane, block, tx_size, args); +#endif // CONFIG_VP9_HIGHBITDEPTH + } + + 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) { + 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[vp9_raster_block_offset(BLOCK_8X8, ib, + src_stride)]; + uint8_t *dst_init = &pd->dst.buf[vp9_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]; +#if CONFIG_VP9_HIGHBITDEPTH + uint16_t best_dst16[8 * 8]; +#endif + + assert(ib < 4); + + memcpy(ta, a, sizeof(ta)); + memcpy(tl, l, sizeof(tl)); + xd->mi[0]->mbmi.tx_size = TX_4X4; + +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + 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; + } + + memcpy(tempa, ta, sizeof(ta)); + 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 = vp9_raster_block_offset_int16(BLOCK_8X8, + block, + p->src_diff); + tran_low_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_highbd_subtract_block(4, 4, src_diff, 8, src, src_stride, + dst, dst_stride, xd->bd); + if (xd->lossless) { + const scan_order *so = &vp9_default_scan_orders[TX_4X4]; + vp9_highbd_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_highbd; + vp9_highbd_iwht4x4_add(BLOCK_OFFSET(pd->dqcoeff, block), + dst, dst_stride, + p->eobs[block], xd->bd); + } 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_highbd_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_highbd_block_error( + coeff, BLOCK_OFFSET(pd->dqcoeff, block), + 16, &unused, xd->bd) >> 2; + if (RDCOST(x->rdmult, x->rddiv, ratey, distortion) >= best_rd) + goto next_highbd; + vp9_highbd_iht4x4_add(tx_type, BLOCK_OFFSET(pd->dqcoeff, block), + dst, dst_stride, p->eobs[block], xd->bd); + } + } + } + + 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; + memcpy(a, tempa, sizeof(tempa)); + memcpy(l, templ, sizeof(templ)); + for (idy = 0; idy < num_4x4_blocks_high * 4; ++idy) { + memcpy(best_dst16 + idy * 8, + CONVERT_TO_SHORTPTR(dst_init + idy * dst_stride), + num_4x4_blocks_wide * 4 * sizeof(uint16_t)); + } + } + next_highbd: + {} + } + if (best_rd >= rd_thresh || x->skip_encode) + return best_rd; + + for (idy = 0; idy < num_4x4_blocks_high * 4; ++idy) { + memcpy(CONVERT_TO_SHORTPTR(dst_init + idy * dst_stride), + best_dst16 + idy * 8, + num_4x4_blocks_wide * 4 * sizeof(uint16_t)); + } + + return best_rd; + } +#endif // CONFIG_VP9_HIGHBITDEPTH + + 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; + } + + memcpy(tempa, ta, sizeof(ta)); + 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 = + vp9_raster_block_offset_int16(BLOCK_8X8, block, p->src_diff); + tran_low_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; + memcpy(a, tempa, sizeof(tempa)); + memcpy(l, templ, sizeof(templ)); + for (idy = 0; idy < num_4x4_blocks_high * 4; ++idy) + 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) + 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->above_mi; + const MODE_INFO *left_mi = xd->left_mi; + 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; + + memcpy(t_above, xd->plane[0].above_context, sizeof(t_above)); + 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); +} + +// This function is used only for intra_only frames +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; + const MODE_INFO *above_mi = xd->above_mi; + const MODE_INFO *left_mi = xd->left_mi; + 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]; + + if (cpi->sf.tx_size_search_method == USE_FULL_RD) + for (i = 0; i < TX_MODES; i++) + tx_cache[i] = INT64_MAX; + + memset(x->skip_txfm, 0, sizeof(x->skip_txfm)); + /* Y Search for intra prediction mode */ + for (mode = DC_PRED; mode <= TM_PRED; mode++) { + int64_t local_tx_cache[TX_MODES]; + + if (cpi->sf.use_nonrd_pick_mode) { + // These speed features are turned on in hybrid non-RD and RD mode + // for key frame coding in the context of real-time setting. + if (conditional_skipintra(mode, mode_selected)) + continue; + if (*skippable) + break; + } + + 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; +} + +// Return value 0: early termination triggered, no valid rd cost available; +// 1: rd cost values are valid. +static int 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; + int is_cost_valid = 1; + + if (ref_best_rd < 0) + is_cost_valid = 0; + + if (is_inter_block(mbmi) && is_cost_valid) { + 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) { + is_cost_valid = 0; + break; + } + *rate += pnrate; + *distortion += pndist; + *sse += pnsse; + *skippable &= pnskip; + } + + if (!is_cost_valid) { + // reset cost value + *rate = INT_MAX; + *distortion = INT64_MAX; + *sse = INT64_MAX; + *skippable = 0; + } + + return is_cost_valid; +} + +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; + + memset(x->skip_txfm, 0, sizeof(x->skip_txfm)); + 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; + + if (!super_block_uvrd(cpi, x, &this_rate_tokenonly, + &this_distortion, &s, &this_sse, bsize, best_rd)) + 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; + memset(x->skip_txfm, 0, sizeof(x->skip_txfm)); + 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, MACROBLOCK *const x, + 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) { + // 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 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) + memmove(&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[vp9_raster_block_offset(BLOCK_8X8, i, p->src.stride)]; + uint8_t *const dst = &pd->dst.buf[vp9_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[vp9_raster_block_offset(BLOCK_8X8, i, + pd->pre[ref].stride)]; +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + vp9_highbd_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), xd->bd); + } else { + 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)); + } +#else + 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)); +#endif // CONFIG_VP9_HIGHBITDEPTH + } + +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + vp9_highbd_subtract_block( + height, width, vp9_raster_block_offset_int16(BLOCK_8X8, i, p->src_diff), + 8, src, p->src.stride, dst, pd->dst.stride, xd->bd); + } else { + vp9_subtract_block( + height, width, vp9_raster_block_offset_int16(BLOCK_8X8, i, p->src_diff), + 8, src, p->src.stride, dst, pd->dst.stride); + } +#else + vp9_subtract_block(height, width, + vp9_raster_block_offset_int16(BLOCK_8X8, i, p->src_diff), + 8, src, p->src.stride, dst, pd->dst.stride); +#endif // CONFIG_VP9_HIGHBITDEPTH + + k = i; + for (idy = 0; idy < height / 4; ++idy) { + for (idx = 0; idx < width / 4; ++idx) { + int64_t ssz, rd, rd1, rd2; + tran_low_t* coeff; + + k += (idy * 2 + idx); + coeff = BLOCK_OFFSET(p->coeff, k); + x->fwd_txm4x4(vp9_raster_block_offset_int16(BLOCK_8X8, k, p->src_diff), + coeff, 8); + vp9_regular_quantize_b_4x4(x, 0, k, so->scan, so->iscan); +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + thisdistortion += vp9_highbd_block_error(coeff, + BLOCK_OFFSET(pd->dqcoeff, k), + 16, &ssz, xd->bd); + } else { + thisdistortion += vp9_block_error(coeff, BLOCK_OFFSET(pd->dqcoeff, k), + 16, &ssz); + } +#else + thisdistortion += vp9_block_error(coeff, BLOCK_OFFSET(pd->dqcoeff, k), + 16, &ssz); +#endif // CONFIG_VP9_HIGHBITDEPTH + 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[vp9_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[vp9_raster_block_offset(BLOCK_8X8, i, + pd->pre[0].stride)]; + if (has_second_ref(mbmi)) + pd->pre[1].buf = &pd->pre[1].buf[vp9_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 this_mode, + const MV_REFERENCE_FRAME ref_frames[2]) { + if ((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 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 VP9_COMMON *const cm = &cpi->common; + 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; + const InterpKernel *kernel = vp9_get_interp_kernel(mbmi->interp_filter); + struct scale_factors sf; + + // Do joint motion search in compound mode to get more accurate mv. + struct buf_2d backup_yv12[2][MAX_MB_PLANE]; + 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]) + }; + + // Prediction buffer from second frame. +#if CONFIG_VP9_HIGHBITDEPTH + DECLARE_ALIGNED(16, uint16_t, second_pred_alloc_16[64 * 64]); + uint8_t *second_pred; +#else + DECLARE_ALIGNED(16, uint8_t, second_pred[64 * 64]); +#endif // CONFIG_VP9_HIGHBITDEPTH + + 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; + } + + // Since we have scaled the reference frames to match the size of the current + // frame we must use a unit scaling factor during mode selection. +#if CONFIG_VP9_HIGHBITDEPTH + vp9_setup_scale_factors_for_frame(&sf, cm->width, cm->height, + cm->width, cm->height, + cm->use_highbitdepth); +#else + vp9_setup_scale_factors_for_frame(&sf, cm->width, cm->height, + cm->width, cm->height); +#endif // CONFIG_VP9_HIGHBITDEPTH + + // Allow joint search multiple times iteratively for each reference frame + // and break out of the search loop if it couldn't find a 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; // Even iterations search in the first reference frame, + // odd iterations search in the second. The predictor + // found for the 'other' reference frame is factored in. + + // 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 the prediction block from the 'other' reference frame. +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + second_pred = CONVERT_TO_BYTEPTR(second_pred_alloc_16); + vp9_highbd_build_inter_predictor(ref_yv12[!id].buf, + ref_yv12[!id].stride, + second_pred, pw, + &frame_mv[refs[!id]].as_mv, + &sf, pw, ph, 0, + kernel, MV_PRECISION_Q3, + mi_col * MI_SIZE, mi_row * MI_SIZE, + xd->bd); + } else { + second_pred = (uint8_t *)second_pred_alloc_16; + vp9_build_inter_predictor(ref_yv12[!id].buf, + ref_yv12[!id].stride, + second_pred, pw, + &frame_mv[refs[!id]].as_mv, + &sf, pw, ph, 0, + kernel, MV_PRECISION_Q3, + mi_col * MI_SIZE, mi_row * MI_SIZE); + } +#else + vp9_build_inter_predictor(ref_yv12[!id].buf, + ref_yv12[!id].stride, + second_pred, pw, + &frame_mv[refs[!id]].as_mv, + &sf, pw, ph, 0, + kernel, MV_PRECISION_Q3, + mi_col * MI_SIZE, mi_row * MI_SIZE); +#endif // CONFIG_VP9_HIGHBITDEPTH + + // Do compound motion search on the current reference frame. + if (id) + xd->plane[0].pre[0] = ref_yv12[id]; + vp9_set_mv_search_range(x, &ref_mv[id].as_mv); + + // Use the mv result from the single mode as mv predictor. + 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); + } + + // Restore the pointer to the first (possibly scaled) prediction buffer. + if (id) + xd->plane[0].pre[0] = ref_yv12[0]; + + 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 prediction frame pointers to their unscaled versions. + 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); + } +} + +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; + + memcpy(t_above, pd->above_context, sizeof(t_above)); + 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, + this_mode, mbmi->ref_frame)) + continue; + + memcpy(orig_pre, pd->pre, sizeof(orig_pre)); + memcpy(bsi->rdstat[i][mode_idx].ta, t_above, + sizeof(bsi->rdstat[i][mode_idx].ta)); + 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 cost_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 ? cost_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); + cost_list[1] = cost_list[2] = cost_list[3] = cost_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_cost_list(cpi, cost_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) { + 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); + memcpy(t_above, bsi->rdstat[i][mode_idx].ta, sizeof(t_above)); + 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) { + memset(ref_costs_single, 0, MAX_REF_FRAMES * sizeof(*ref_costs_single)); + 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]; + + memcpy(ctx->tx_rd_diff, tx_size_diff, sizeof(ctx->tx_rd_diff)); + 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; + + assert(yv12 != NULL); + + // 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, + NULL, NULL); + + // 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 cost_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_lookup[BLOCK_64X64] - + MIN(b_height_log2_lookup[bsize], b_width_log2_lookup[bsize])); + step_param = MAX(step_param, boffset); + } + + if (cpi->sf.adaptive_motion_search) { + int bwl = b_width_log2_lookup[bsize]; + int bhl = b_height_log2_lookup[bsize]; + int tlevel = x->pred_mv_sad[ref] >> (bwl + bhl + 4); + + if (tlevel < 5) + step_param += 2; + + // prev_mv_sad is not setup for dynamically scaled frames. + if (cpi->oxcf.resize_mode != RESIZE_DYNAMIC) { + int i; + 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_cost_list(cpi, cost_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_cost_list(cpi, cost_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 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]; + } +} + +// In some situations we want to discount tha pparent cost of a new motion +// vector. Where there is a subtle motion field and especially where there is +// low spatial complexity then it can be hard to cover the cost of a new motion +// vector in a single block, even if that motion vector reduces distortion. +// However, once established that vector may be usable through the nearest and +// near mv modes to reduce distortion in subsequent blocks and also improve +// visual quality. +static int discount_newmv_test(const VP9_COMP *cpi, + int this_mode, + int_mv this_mv, + int_mv (*mode_mv)[MAX_REF_FRAMES], + int ref_frame) { + return (!cpi->rc.is_src_frame_alt_ref && + (this_mode == NEWMV) && + (this_mv.as_int != 0) && + ((mode_mv[NEARESTMV][ref_frame].as_int == 0) || + (mode_mv[NEARESTMV][ref_frame].as_int == INVALID_MV)) && + ((mode_mv[NEARMV][ref_frame].as_int == 0) || + (mode_mv[NEARMV][ref_frame].as_int == INVALID_MV))); +} + +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, int *rate_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, + int64_t *mask_filter, + int64_t filter_cache[]) { + VP9_COMMON *cm = &cpi->common; + 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]; +#if CONFIG_VP9_HIGHBITDEPTH + DECLARE_ALIGNED(16, uint16_t, tmp_buf16[MAX_MB_PLANE * 64 * 64]); + uint8_t *tmp_buf; +#else + DECLARE_ALIGNED(16, uint8_t, tmp_buf[MAX_MB_PLANE * 64 * 64]); +#endif // CONFIG_VP9_HIGHBITDEPTH + 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; + + int skip_txfm_sb = 0; + int64_t skip_sse_sb = INT64_MAX; + int64_t distortion_y = 0, distortion_uv = 0; + +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + tmp_buf = CONVERT_TO_BYTEPTR(tmp_buf16); + } else { + tmp_buf = (uint8_t *)tmp_buf16; + } +#endif // CONFIG_VP9_HIGHBITDEPTH + + 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; + + 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; + + // Estimate the rate implications of a new mv but discount this + // under certain circumstances where we want to help initiate a weak + // motion field, where the distortion gain for a single block may not + // be enough to overcome the cost of a new mv. + if (discount_newmv_test(cpi, this_mode, tmp_mv, mode_mv, refs[0])) { + *rate2 += MAX((rate_mv / NEW_MV_DISCOUNT_FACTOR), 1); + } else { + *rate2 += rate_mv; + } + } + } + + 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. + // + // Under some circumstances we discount the cost of new mv mode to encourage + // initiation of a motion field. + if (discount_newmv_test(cpi, this_mode, frame_mv[refs[0]], + mode_mv, refs[0])) { + *rate2 += MIN(cost_mv_ref(cpi, this_mode, mbmi->mode_context[refs[0]]), + cost_mv_ref(cpi, NEARESTMV, mbmi->mode_context[refs[0]])); + } else { + *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 + for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i) + 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; + int tmp_skip_sb = 0; + int64_t tmp_skip_sse = INT64_MAX; + + mbmi->interp_filter = i; + rs = vp9_get_switchable_rate(cpi, xd); + 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); + filter_cache[i] = rd; + filter_cache[SWITCHABLE_FILTERS] = + MIN(filter_cache[SWITCHABLE_FILTERS], rd + rs_rd); + if (cm->interp_filter == SWITCHABLE) + rd += rs_rd; + *mask_filter = MAX(*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, + &tmp_skip_sb, &tmp_skip_sse); + + rd = RDCOST(x->rdmult, x->rddiv, rate_sum, dist_sum); + filter_cache[i] = rd; + filter_cache[SWITCHABLE_FILTERS] = + MIN(filter_cache[SWITCHABLE_FILTERS], rd + rs_rd); + if (cm->interp_filter == SWITCHABLE) + rd += rs_rd; + *mask_filter = MAX(*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; + } + + if ((cm->interp_filter == SWITCHABLE && newbest) || + (cm->interp_filter != SWITCHABLE && + cm->interp_filter == mbmi->interp_filter)) { + pred_exists = 1; + tmp_rd = best_rd; + + skip_txfm_sb = tmp_skip_sb; + skip_sse_sb = tmp_skip_sse; + memcpy(skip_txfm, x->skip_txfm, sizeof(skip_txfm)); + memcpy(bsse, x->bsse, sizeof(bsse)); + } + } + 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, xd) : 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, + &skip_txfm_sb, &skip_sse_sb); + rd = RDCOST(x->rdmult, x->rddiv, rs + tmp_rate, tmp_dist); + memcpy(skip_txfm, x->skip_txfm, sizeof(skip_txfm)); + 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]]) + 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; + + memcpy(x->skip_txfm, skip_txfm, sizeof(skip_txfm)); + memcpy(x->bsse, bsse, sizeof(bsse)); + + if (!skip_txfm_sb) { + 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)); + + if (!super_block_uvrd(cpi, x, rate_uv, &distortion_uv, &skippable_uv, + &sseuv, bsize, ref_best_rd - rdcosty)) { + *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; + } else { + x->skip = 1; + *disable_skip = 1; + + // The cost of skip bit needs to be added. + *rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1); + + *distortion = skip_sse_sb; + } + + if (!is_comp_pred) + single_skippable[this_mode][refs[0]] = *skippable; + + restore_dst_buf(xd, orig_dst, orig_dst_stride); + return 0; // The rate-distortion cost will be re-calculated by caller. +} + +void vp9_rd_pick_intra_mode_sb(VP9_COMP *cpi, MACROBLOCK *x, + RD_COST *rd_cost, 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; + xd->mi[0]->mbmi.ref_frame[1] = NONE; + + 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) { + rd_cost->rate = INT_MAX; + return; + } + } 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) { + rd_cost->rate = 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, MAX(BLOCK_8X8, bsize), + max_uv_tx_size); + + if (y_skip && uv_skip) { + rd_cost->rate = rate_y + rate_uv - rate_y_tokenonly - rate_uv_tokenonly + + vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1); + rd_cost->dist = dist_y + dist_uv; + vp9_zero(ctx->tx_rd_diff); + } else { + int i; + rd_cost->rate = rate_y + rate_uv + + vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0); + rd_cost->dist = 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]; + rd_cost->rdcost = RDCOST(x->rdmult, x->rddiv, rd_cost->rate, rd_cost->dist); +} + +// This function is designed to apply a bias or adjustment to an rd value based +// on the relative variance of the source and reconstruction. +#define LOW_VAR_THRESH 16 +#define VLOW_ADJ_MAX 25 +#define VHIGH_ADJ_MAX 8 +static void rd_variance_adjustment(VP9_COMP *cpi, + MACROBLOCK *x, + BLOCK_SIZE bsize, + int64_t *this_rd, + MV_REFERENCE_FRAME ref_frame, + unsigned int source_variance) { + MACROBLOCKD *const xd = &x->e_mbd; + unsigned int recon_variance; + unsigned int absvar_diff = 0; + int64_t var_error = 0; + int64_t var_factor = 0; + + if (*this_rd == INT64_MAX) + return; + +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + recon_variance = + vp9_high_get_sby_perpixel_variance(cpi, &xd->plane[0].dst, bsize, xd->bd); + } else { + recon_variance = + vp9_get_sby_perpixel_variance(cpi, &xd->plane[0].dst, bsize); + } +#else + recon_variance = + vp9_get_sby_perpixel_variance(cpi, &xd->plane[0].dst, bsize); +#endif // CONFIG_VP9_HIGHBITDEPTH + + if ((source_variance + recon_variance) > LOW_VAR_THRESH) { + absvar_diff = (source_variance > recon_variance) + ? (source_variance - recon_variance) + : (recon_variance - source_variance); + + var_error = (200 * source_variance * recon_variance) / + ((source_variance * source_variance) + + (recon_variance * recon_variance)); + var_error = 100 - var_error; + } + + // Source variance above a threshold and ref frame is intra. + // This case is targeted mainly at discouraging intra modes that give rise + // to a predictor with a low spatial complexity compared to the source. + if ((source_variance > LOW_VAR_THRESH) && (ref_frame == INTRA_FRAME) && + (source_variance > recon_variance)) { + var_factor = MIN(absvar_diff, MIN(VLOW_ADJ_MAX, var_error)); + // A second possible case of interest is where the source variance + // is very low and we wish to discourage false texture or motion trails. + } else if ((source_variance < (LOW_VAR_THRESH >> 1)) && + (recon_variance > source_variance)) { + var_factor = MIN(absvar_diff, MIN(VHIGH_ADJ_MAX, var_error)); + } + *this_rd += (*this_rd * var_factor) / 100; +} + +void vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, + TileDataEnc *tile_data, + MACROBLOCK *x, + int mi_row, int mi_col, + RD_COST *rd_cost, BLOCK_SIZE bsize, + PICK_MODE_CONTEXT *ctx, + int64_t best_rd_so_far) { + VP9_COMMON *const cm = &cpi->common; + TileInfo *const tile_info = &tile_data->tile_info; + RD_OPT *const rd_opt = &cpi->rd; + SPEED_FEATURES *const sf = &cpi->sf; + MACROBLOCKD *const xd = &x->e_mbd; + MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi; + const struct segmentation *const seg = &cm->seg; + 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 midx, 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; + unsigned int best_pred_sse = UINT_MAX; + PREDICTION_MODE best_intra_mode = DC_PRED; + 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]; + const int intra_cost_penalty = vp9_get_intra_cost_penalty( + cm->base_qindex, cm->y_dc_delta_q, cm->bit_depth); + int best_skip2 = 0; + uint8_t ref_frame_skip_mask[2] = { 0 }; + uint16_t mode_skip_mask[MAX_REF_FRAMES] = { 0 }; + int mode_skip_start = sf->mode_skip_start + 1; + const int *const rd_threshes = rd_opt->threshes[segment_id][bsize]; + const int *const rd_thresh_freq_fact = tile_data->thresh_freq_fact[bsize]; + int64_t mode_threshold[MAX_MODES]; + int *mode_map = tile_data->mode_map[bsize]; + const int mode_search_skip_flags = sf->mode_search_skip_flags; + int64_t mask_filter = 0; + int64_t filter_cache[SWITCHABLE_FILTER_CONTEXTS]; + + vp9_zero(best_mbmode); + + x->skip_encode = sf->skip_encode_frame && x->q_index < QIDX_SKIP_THRESH; + + for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i) + filter_cache[i] = INT64_MAX; + + 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; + } + } + + rd_cost->rate = 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]) { + assert(get_ref_frame_buffer(cpi, ref_frame) != NULL); + setup_buffer_inter(cpi, x, tile_info, 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) { + if (!(cpi->ref_frame_flags & flag_list[ref_frame])) { + // Skip checking missing references in both single and compound reference + // modes. Note that a mode will be skipped iff both reference frames + // are masked out. + ref_frame_skip_mask[0] |= (1 << ref_frame); + ref_frame_skip_mask[1] |= SECOND_REF_FRAME_MASK; + } else if (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] |= INTER_NEAREST_NEAR_ZERO; + 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) { + ref_frame_skip_mask[0] |= (1 << ref_frame); + ref_frame_skip_mask[1] |= SECOND_REF_FRAME_MASK; + } + } + + // 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)) { + ref_frame_skip_mask[0] = (1 << LAST_FRAME) | (1 << GOLDEN_FRAME); + ref_frame_skip_mask[1] = SECOND_REF_FRAME_MASK; + mode_skip_mask[ALTREF_FRAME] = ~INTER_NEAREST_NEAR_ZERO; + if (frame_mv[NEARMV][ALTREF_FRAME].as_int != 0) + mode_skip_mask[ALTREF_FRAME] |= (1 << NEARMV); + if (frame_mv[NEARESTMV][ALTREF_FRAME].as_int != 0) + mode_skip_mask[ALTREF_FRAME] |= (1 << NEARESTMV); + } + } + + if (cpi->rc.is_src_frame_alt_ref) { + if (sf->alt_ref_search_fp) { + mode_skip_mask[ALTREF_FRAME] = 0; + ref_frame_skip_mask[0] = ~(1 << ALTREF_FRAME); + ref_frame_skip_mask[1] = SECOND_REF_FRAME_MASK; + } + } + + if (sf->alt_ref_search_fp) + if (!cm->show_frame && x->pred_mv_sad[GOLDEN_FRAME] < INT_MAX) + if (x->pred_mv_sad[ALTREF_FRAME] > (x->pred_mv_sad[GOLDEN_FRAME] << 1)) + mode_skip_mask[ALTREF_FRAME] |= INTER_ALL; + + if (sf->adaptive_mode_search) { + if (cm->show_frame && !cpi->rc.is_src_frame_alt_ref && + cpi->rc.frames_since_golden >= 3) + if (x->pred_mv_sad[GOLDEN_FRAME] > (x->pred_mv_sad[LAST_FRAME] << 1)) + mode_skip_mask[GOLDEN_FRAME] |= INTER_ALL; + } + + if (bsize > sf->max_intra_bsize) { + ref_frame_skip_mask[0] |= (1 << INTRA_FRAME); + ref_frame_skip_mask[1] |= (1 << INTRA_FRAME); + } + + mode_skip_mask[INTRA_FRAME] |= + ~(sf->intra_y_mode_mask[max_txsize_lookup[bsize]]); + + for (i = 0; i <= LAST_NEW_MV_INDEX; ++i) + mode_threshold[i] = 0; + for (i = LAST_NEW_MV_INDEX + 1; i < MAX_MODES; ++i) + mode_threshold[i] = ((int64_t)rd_threshes[i] * rd_thresh_freq_fact[i]) >> 5; + + midx = sf->schedule_mode_search ? mode_skip_start : 0; + while (midx > 4) { + uint8_t end_pos = 0; + for (i = 5; i < midx; ++i) { + if (mode_threshold[mode_map[i - 1]] > mode_threshold[mode_map[i]]) { + uint8_t tmp = mode_map[i]; + mode_map[i] = mode_map[i - 1]; + mode_map[i - 1] = tmp; + end_pos = i; + } + } + midx = end_pos; + } + + for (midx = 0; midx < MAX_MODES; ++midx) { + int mode_index = mode_map[midx]; + 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 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]; + 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 (midx == mode_skip_start && best_mode_index >= 0) { + switch (best_mbmode.ref_frame[0]) { + case INTRA_FRAME: + break; + case LAST_FRAME: + ref_frame_skip_mask[0] |= LAST_FRAME_MODE_MASK; + ref_frame_skip_mask[1] |= SECOND_REF_FRAME_MASK; + break; + case GOLDEN_FRAME: + ref_frame_skip_mask[0] |= GOLDEN_FRAME_MODE_MASK; + ref_frame_skip_mask[1] |= SECOND_REF_FRAME_MASK; + break; + case ALTREF_FRAME: + ref_frame_skip_mask[0] |= ALT_REF_MODE_MASK; + break; + case NONE: + case MAX_REF_FRAMES: + assert(0 && "Invalid Reference frame"); + break; + } + } + + if ((ref_frame_skip_mask[0] & (1 << ref_frame)) && + (ref_frame_skip_mask[1] & (1 << MAX(0, second_ref_frame)))) + continue; + + if (mode_skip_mask[ref_frame] & (1 << this_mode)) + continue; + + // Test best rd so far against threshold for trying this mode. + if (best_mode_skippable && sf->schedule_mode_search) + mode_threshold[mode_index] <<= 1; + + if (best_rd < mode_threshold[mode_index]) + continue; + + if (sf->motion_field_mode_search) { + const int mi_width = MIN(num_8x8_blocks_wide_lookup[bsize], + tile_info->mi_col_end - mi_col); + const int mi_height = MIN(num_8x8_blocks_high_lookup[bsize], + tile_info->mi_row_end - mi_row); + const int bsl = mi_width_log2_lookup[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_info->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_info->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 (!cpi->allow_comp_inter_inter) + continue; + + // Skip compound inter modes if ARF is not available. + 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 ((mode_search_skip_flags & FLAG_SKIP_COMP_BESTINTRA) && + best_mode_index >= 0 && best_mbmode.ref_frame[0] == INTRA_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 (sf->adaptive_mode_search) + if ((x->source_variance << num_pels_log2_lookup[bsize]) > best_pred_sse) + 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 && + best_mbmode.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, + 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; + struct macroblockd_plane *const pd = &xd->plane[1]; + memset(x->skip_txfm, 0, sizeof(x->skip_txfm)); + 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->subsampling_x, + pd->subsampling_y); + if (rate_uv_intra[uv_tx] == INT_MAX) { + choose_intra_uv_mode(cpi, x, 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, &rate_uv, + &disable_skip, frame_mv, + mi_row, mi_col, + single_newmv, single_inter_filter, + single_skippable, &total_sse, best_rd, + &mask_filter, filter_cache); + 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) { + // Back out the coefficient coding costs + rate2 -= (rate_y + rate_uv); + + // Cost the skip mb case + rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1); + } 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); + 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); + } + + // Apply an adjustment to the rd value based on the similarity of the + // source variance and reconstructed variance. + rd_variance_adjustment(cpi, x, bsize, &this_rd, + ref_frame, x->source_variance); + + 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; + } + } + + 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_pred_sse = x->pred_sse[ref_frame]; + } + + rd_cost->rate = rate2; + rd_cost->dist = distortion2; + rd_cost->rdcost = this_rd; + 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); + 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)) { + int qstep = xd->plane[0].dequant[1]; + // TODO(debargha): Enhance this by specializing for each mode_index + int scale = 4; +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + qstep >>= (xd->bd - 8); + } +#endif // CONFIG_VP9_HIGHBITDEPTH + 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 = 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 (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 = mask_filter - ref + 10; + else + adj_rd = 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) { + rd_cost->rate = INT_MAX; + rd_cost->rdcost = INT64_MAX; + return; + } + + // If we used an estimate for the uv intra rd in the loop above... + if (sf->use_uv_intra_rd_estimate) { + // Do Intra UV best rd mode selection if best mode choice above was intra. + if (best_mbmode.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)); + + if (!cpi->rc.is_src_frame_alt_ref) + vp9_update_rd_thresh_fact(tile_data->thresh_freq_fact, + sf->adaptive_rd_thresh, 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); + } + + // TODO(yunqingwang): Moving this line in front of the above best_filter_diff + // updating code causes PSNR loss. Need to figure out the confliction. + x->skip |= best_mode_skippable; + + if (!x->skip && !x->select_tx_size) { + int has_high_freq_coeff = 0; + int plane; + int max_plane = is_inter_block(&xd->mi[0]->mbmi) + ? MAX_MB_PLANE : 1; + for (plane = 0; plane < max_plane; ++plane) { + x->plane[plane].eobs = ctx->eobs_pbuf[plane][1]; + has_high_freq_coeff |= vp9_has_high_freq_in_plane(x, bsize, plane); + } + + for (plane = max_plane; plane < MAX_MB_PLANE; ++plane) { + x->plane[plane].eobs = ctx->eobs_pbuf[plane][2]; + has_high_freq_coeff |= vp9_has_high_freq_in_plane(x, bsize, plane); + } + + best_mode_skippable |= !has_high_freq_coeff; + } + + assert(best_mode_index >= 0); + + store_coding_context(x, ctx, best_mode_index, best_pred_diff, + best_tx_diff, best_filter_diff, best_mode_skippable); +} + +void vp9_rd_pick_inter_mode_sb_seg_skip(VP9_COMP *cpi, + TileDataEnc *tile_data, + MACROBLOCK *x, + RD_COST *rd_cost, + BLOCK_SIZE bsize, + PICK_MODE_CONTEXT *ctx, + int64_t best_rd_so_far) { + VP9_COMMON *const cm = &cpi->common; + 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; + + rd_cost->rate = 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; + + 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, xd); + 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, xd); + } 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); + + rd_cost->rate = rate2; + rd_cost->dist = distortion2; + rd_cost->rdcost = this_rd; + + if (this_rd >= best_rd_so_far) { + rd_cost->rate = INT_MAX; + rd_cost->rdcost = INT64_MAX; + return; + } + + assert((cm->interp_filter == SWITCHABLE) || + (cm->interp_filter == mbmi->interp_filter)); + + vp9_update_rd_thresh_fact(tile_data->thresh_freq_fact, + cpi->sf.adaptive_rd_thresh, 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); +} + +void vp9_rd_pick_inter_mode_sub8x8(VP9_COMP *cpi, + TileDataEnc *tile_data, + MACROBLOCK *x, + int mi_row, int mi_col, + RD_COST *rd_cost, + BLOCK_SIZE bsize, + PICK_MODE_CONTEXT *ctx, + int64_t best_rd_so_far) { + VP9_COMMON *const cm = &cpi->common; + TileInfo *const tile_info = &tile_data->tile_info; + RD_OPT *const rd_opt = &cpi->rd; + SPEED_FEATURES *const sf = &cpi->sf; + 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; + 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; + const int intra_cost_penalty = vp9_get_intra_cost_penalty( + cm->base_qindex, cm->y_dc_delta_q, cm->bit_depth); + int_mv seg_mvs[4][MAX_REF_FRAMES]; + b_mode_info best_bmodes[4]; + int best_skip2 = 0; + int ref_frame_skip_mask[2] = { 0 }; + int64_t mask_filter = 0; + int64_t filter_cache[SWITCHABLE_FILTER_CONTEXTS]; + + x->skip_encode = sf->skip_encode_frame && x->q_index < QIDX_SKIP_THRESH; + memset(x->zcoeff_blk[TX_4X4], 0, 4); + vp9_zero(best_mbmode); + + for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i) + filter_cache[i] = INT64_MAX; + + 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; + + rd_cost->rate = 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_info, + ref_frame, bsize, mi_row, mi_col, + frame_mv[NEARESTMV], frame_mv[NEARMV], + yv12_mb); + } else { + ref_frame_skip_mask[0] |= (1 << ref_frame); + ref_frame_skip_mask[1] |= SECOND_REF_FRAME_MASK; + } + 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 && sf->mode_skip_start < MAX_MODES) { + if (ref_index == 3) { + switch (best_mbmode.ref_frame[0]) { + case INTRA_FRAME: + break; + case LAST_FRAME: + ref_frame_skip_mask[0] |= (1 << GOLDEN_FRAME) | (1 << ALTREF_FRAME); + ref_frame_skip_mask[1] |= SECOND_REF_FRAME_MASK; + break; + case GOLDEN_FRAME: + ref_frame_skip_mask[0] |= (1 << LAST_FRAME) | (1 << ALTREF_FRAME); + ref_frame_skip_mask[1] |= SECOND_REF_FRAME_MASK; + break; + case ALTREF_FRAME: + ref_frame_skip_mask[0] |= (1 << GOLDEN_FRAME) | (1 << LAST_FRAME); + break; + case NONE: + case MAX_REF_FRAMES: + assert(0 && "Invalid Reference frame"); + break; + } + } + } + + if ((ref_frame_skip_mask[0] & (1 << ref_frame)) && + (ref_frame_skip_mask[1] & (1 << MAX(0, second_ref_frame)))) + 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], + tile_data->thresh_freq_fact[bsize][ref_index])) + continue; + + comp_pred = second_ref_frame > INTRA_FRAME; + if (comp_pred) { + if (!cpi->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 ((sf->mode_search_skip_flags & FLAG_SKIP_COMP_BESTINTRA) && + best_mbmode.ref_frame[0] == INTRA_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, x, 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; + for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i) + filter_cache[i] = INT64_MAX; + + if (cm->interp_filter != BILINEAR) { + tmp_best_filter = EIGHTTAP; + if (x->source_variance < sf->disable_filter_search_var_thresh) { + tmp_best_filter = EIGHTTAP; + } else if (sf->adaptive_pred_interp_filter == 1 && + ctx->pred_interp_filter < SWITCHABLE) { + tmp_best_filter = ctx->pred_interp_filter; + } else if (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_info, + &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, xd); + rs_rd = RDCOST(x->rdmult, x->rddiv, rs, 0); + filter_cache[switchable_filter_index] = tmp_rd; + filter_cache[SWITCHABLE_FILTERS] = + MIN(filter_cache[SWITCHABLE_FILTERS], + tmp_rd + rs_rd); + if (cm->interp_filter == SWITCHABLE) + tmp_rd += rs_rd; + + mask_filter = MAX(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 && + 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_info, + &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, xd); + + 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); + memset(x->skip_txfm, 0, sizeof(x->skip_txfm)); + if (!super_block_uvrd(cpi, x, &rate_uv, &distortion_uv, &uv_skippable, + &uv_sse, BLOCK_8X8, tmp_best_rdu)) + 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); + } + + 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; + } + + rd_cost->rate = rate2; + rd_cost->dist = distortion2; + rd_cost->rdcost = this_rd; + 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); + 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 ((sf->mode_search_skip_flags & FLAG_EARLY_TERMINATE) && + (ref_index > MIN_EARLY_TERM_INDEX)) { + int qstep = xd->plane[0].dequant[1]; + // TODO(debargha): Enhance this by specializing for each mode_index + int scale = 4; +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + qstep >>= (xd->bd - 8); + } +#endif // CONFIG_VP9_HIGHBITDEPTH + 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 = 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 (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 = mask_filter - ref + 10; + else + adj_rd = 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) { + rd_cost->rate = INT_MAX; + rd_cost->rdcost = INT64_MAX; + return; + } + + // If we used an estimate for the uv intra rd in the loop above... + if (sf->use_uv_intra_rd_estimate) { + // Do Intra UV best rd mode selection if best mode choice above was intra. + if (best_mbmode.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) { + rd_cost->rate = INT_MAX; + rd_cost->dist = INT64_MAX; + rd_cost->rdcost = INT64_MAX; + return; + } + + assert((cm->interp_filter == SWITCHABLE) || + (cm->interp_filter == best_mbmode.interp_filter) || + !is_inter_block(&best_mbmode)); + + vp9_update_rd_thresh_fact(tile_data->thresh_freq_fact, + sf->adaptive_rd_thresh, 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) + 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); + } + + store_coding_context(x, ctx, best_ref_index, + best_pred_diff, best_tx_diff, best_filter_diff, 0); +} |