/* * 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 #include #include "./vp9_rtcd.h" #include "vpx_mem/vpx_mem.h" #include "vp9/common/vp9_common.h" #include "vp9/common/vp9_entropy.h" #include "vp9/common/vp9_entropymode.h" #include "vp9/common/vp9_idct.h" #include "vp9/common/vp9_mvref_common.h" #include "vp9/common/vp9_pred_common.h" #include "vp9/common/vp9_quant_common.h" #include "vp9/common/vp9_reconinter.h" #include "vp9/common/vp9_reconintra.h" #include "vp9/common/vp9_seg_common.h" #include "vp9/common/vp9_systemdependent.h" #include "vp9/encoder/vp9_cost.h" #include "vp9/encoder/vp9_encodemb.h" #include "vp9/encoder/vp9_encodemv.h" #include "vp9/encoder/vp9_encoder.h" #include "vp9/encoder/vp9_mcomp.h" #include "vp9/encoder/vp9_quantize.h" #include "vp9/encoder/vp9_ratectrl.h" #include "vp9/encoder/vp9_rd.h" #include "vp9/encoder/vp9_rdopt.h" #include "vp9/encoder/vp9_variance.h" #define RD_THRESH_MAX_FACT 64 #define RD_THRESH_INC 1 #define LAST_FRAME_MODE_MASK ((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 typedef struct { PREDICTION_MODE mode; MV_REFERENCE_FRAME ref_frame[2]; } MODE_DEFINITION; typedef struct { MV_REFERENCE_FRAME ref_frame[2]; } REF_DEFINITION; struct rdcost_block_args { MACROBLOCK *x; ENTROPY_CONTEXT t_above[16]; ENTROPY_CONTEXT t_left[16]; int rate; int64_t dist; int64_t sse; int this_rate; int64_t this_dist; int64_t this_sse; int64_t this_rd; int64_t best_rd; int skip; int use_fast_coef_costing; const scan_order *so; }; static const MODE_DEFINITION vp9_mode_order[MAX_MODES] = { {NEARESTMV, {LAST_FRAME, NONE}}, {NEARESTMV, {ALTREF_FRAME, NONE}}, {NEARESTMV, {GOLDEN_FRAME, NONE}}, {DC_PRED, {INTRA_FRAME, NONE}}, {NEWMV, {LAST_FRAME, NONE}}, {NEWMV, {ALTREF_FRAME, NONE}}, {NEWMV, {GOLDEN_FRAME, NONE}}, {NEARMV, {LAST_FRAME, NONE}}, {NEARMV, {ALTREF_FRAME, NONE}}, {NEARESTMV, {LAST_FRAME, ALTREF_FRAME}}, {NEARESTMV, {GOLDEN_FRAME, ALTREF_FRAME}}, {TM_PRED, {INTRA_FRAME, NONE}}, {NEARMV, {LAST_FRAME, ALTREF_FRAME}}, {NEWMV, {LAST_FRAME, ALTREF_FRAME}}, {NEARMV, {GOLDEN_FRAME, NONE}}, {NEARMV, {GOLDEN_FRAME, ALTREF_FRAME}}, {NEWMV, {GOLDEN_FRAME, ALTREF_FRAME}}, {ZEROMV, {LAST_FRAME, NONE}}, {ZEROMV, {GOLDEN_FRAME, NONE}}, {ZEROMV, {ALTREF_FRAME, NONE}}, {ZEROMV, {LAST_FRAME, ALTREF_FRAME}}, {ZEROMV, {GOLDEN_FRAME, ALTREF_FRAME}}, {H_PRED, {INTRA_FRAME, NONE}}, {V_PRED, {INTRA_FRAME, NONE}}, {D135_PRED, {INTRA_FRAME, NONE}}, {D207_PRED, {INTRA_FRAME, NONE}}, {D153_PRED, {INTRA_FRAME, NONE}}, {D63_PRED, {INTRA_FRAME, NONE}}, {D117_PRED, {INTRA_FRAME, NONE}}, {D45_PRED, {INTRA_FRAME, NONE}}, }; static const REF_DEFINITION vp9_ref_order[MAX_REFS] = { {{LAST_FRAME, NONE}}, {{GOLDEN_FRAME, NONE}}, {{ALTREF_FRAME, NONE}}, {{LAST_FRAME, ALTREF_FRAME}}, {{GOLDEN_FRAME, ALTREF_FRAME}}, {{INTRA_FRAME, NONE}}, }; static int raster_block_offset(BLOCK_SIZE plane_bsize, int raster_block, int stride) { const int bw = b_width_log2(plane_bsize); const int y = 4 * (raster_block >> bw); const int x = 4 * (raster_block & ((1 << bw) - 1)); return y * stride + x; } static int16_t* raster_block_offset_int16(BLOCK_SIZE plane_bsize, int raster_block, int16_t *base) { const int stride = 4 * num_4x4_blocks_wide_lookup[plane_bsize]; return base + raster_block_offset(plane_bsize, raster_block, stride); } static void swap_block_ptr(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx, int m, int n, int min_plane, int max_plane) { int i; for (i = min_plane; i < max_plane; ++i) { struct macroblock_plane *const p = &x->plane[i]; struct macroblockd_plane *const pd = &x->e_mbd.plane[i]; p->coeff = ctx->coeff_pbuf[i][m]; p->qcoeff = ctx->qcoeff_pbuf[i][m]; pd->dqcoeff = ctx->dqcoeff_pbuf[i][m]; p->eobs = ctx->eobs_pbuf[i][m]; ctx->coeff_pbuf[i][m] = ctx->coeff_pbuf[i][n]; ctx->qcoeff_pbuf[i][m] = ctx->qcoeff_pbuf[i][n]; ctx->dqcoeff_pbuf[i][m] = ctx->dqcoeff_pbuf[i][n]; ctx->eobs_pbuf[i][m] = ctx->eobs_pbuf[i][n]; ctx->coeff_pbuf[i][n] = p->coeff; ctx->qcoeff_pbuf[i][n] = p->qcoeff; ctx->dqcoeff_pbuf[i][n] = pd->dqcoeff; ctx->eobs_pbuf[i][n] = p->eobs; } } static void model_rd_for_sb(VP9_COMP *cpi, BLOCK_SIZE bsize, MACROBLOCK *x, MACROBLOCKD *xd, int *out_rate_sum, int64_t *out_dist_sum) { // Note our transform coeffs are 8 times an orthogonal transform. // Hence quantizer step is also 8 times. To get effective quantizer // we need to divide by 8 before sending to modeling function. int i; int64_t rate_sum = 0; int64_t dist_sum = 0; const int ref = xd->mi[0].src_mi->mbmi.ref_frame[0]; unsigned int sse; unsigned int var = 0; unsigned int sum_sse = 0; const int shift = 8; int rate; int64_t dist; x->pred_sse[ref] = 0; for (i = 0; i < MAX_MB_PLANE; ++i) { struct macroblock_plane *const p = &x->plane[i]; struct macroblockd_plane *const pd = &xd->plane[i]; const BLOCK_SIZE bs = get_plane_block_size(bsize, pd); const TX_SIZE max_tx_size = max_txsize_lookup[bs]; const BLOCK_SIZE unit_size = txsize_to_bsize[max_tx_size]; int bw = 1 << (b_width_log2_lookup[bs] - b_width_log2_lookup[unit_size]); int bh = 1 << (b_height_log2_lookup[bs] - b_width_log2_lookup[unit_size]); int idx, idy; int lw = b_width_log2_lookup[unit_size] + 2; int lh = b_height_log2_lookup[unit_size] + 2; sum_sse = 0; for (idy = 0; idy < bh; ++idy) { for (idx = 0; idx < bw; ++idx) { uint8_t *src = p->src.buf + (idy * p->src.stride << lh) + (idx << lw); uint8_t *dst = pd->dst.buf + (idy * pd->dst.stride << lh) + (idx << lh); int block_idx = (idy << 1) + idx; var = cpi->fn_ptr[unit_size].vf(src, p->src.stride, dst, pd->dst.stride, &sse); x->bsse[(i << 2) + block_idx] = sse; sum_sse += sse; if (!x->select_tx_size) { if (x->bsse[(i << 2) + block_idx] < p->quant_thred[0] >> shift) x->skip_txfm[(i << 2) + block_idx] = 1; else if (var < p->quant_thred[1] >> shift) x->skip_txfm[(i << 2) + block_idx] = 2; else x->skip_txfm[(i << 2) + block_idx] = 0; } if (i == 0) x->pred_sse[ref] += sse; } } // Fast approximate the modelling function. if (cpi->oxcf.speed > 4) { int64_t rate; int64_t dist; int64_t square_error = sse; int quantizer = (pd->dequant[1] >> 3); if (quantizer < 120) rate = (square_error * (280 - quantizer)) >> 8; else rate = 0; dist = (square_error * quantizer) >> 8; rate_sum += rate; dist_sum += dist; } else { vp9_model_rd_from_var_lapndz(sum_sse, 1 << num_pels_log2_lookup[bs], pd->dequant[1] >> 3, &rate, &dist); rate_sum += rate; dist_sum += dist; } } *out_rate_sum = (int)rate_sum; *out_dist_sum = dist_sum << 4; } int64_t vp9_block_error_c(const 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; } /* The trailing '0' is a terminator which is used inside cost_coeffs() to * decide whether to include cost of a trailing EOB node or not (i.e. we * can skip this if the last coefficient in this transform block, e.g. the * 16th coefficient in a 4x4 block or the 64th coefficient in a 8x8 block, * were non-zero). */ static const int16_t band_counts[TX_SIZES][8] = { { 1, 2, 3, 4, 3, 16 - 13, 0 }, { 1, 2, 3, 4, 11, 64 - 21, 0 }, { 1, 2, 3, 4, 11, 256 - 21, 0 }, { 1, 2, 3, 4, 11, 1024 - 21, 0 }, }; static INLINE int cost_coeffs(MACROBLOCK *x, int plane, int block, ENTROPY_CONTEXT *A, ENTROPY_CONTEXT *L, TX_SIZE tx_size, const int16_t *scan, const int16_t *nb, int use_fast_coef_costing) { MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *mbmi = &xd->mi[0].src_mi->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; // Check for consistency of tx_size with mode info assert(type == PLANE_TYPE_Y ? mbmi->tx_size == tx_size : get_uv_tx_size(mbmi, pd) == tx_size); if (eob == 0) { // single eob token cost = token_costs[0][0][pt][EOB_TOKEN]; c = 0; } else { int band_left = *band_count++; // dc token int v = qcoeff[0]; int prev_t = vp9_dct_value_tokens_ptr[v].token; cost = (*token_costs)[0][pt][prev_t] + vp9_dct_value_cost_ptr[v]; token_cache[0] = vp9_pt_energy_class[prev_t]; ++token_costs; // ac tokens for (c = 1; c < eob; c++) { const int rc = scan[c]; int t; v = qcoeff[rc]; t = vp9_dct_value_tokens_ptr[v].token; if (use_fast_coef_costing) { cost += (*token_costs)[!prev_t][!prev_t][t] + vp9_dct_value_cost_ptr[v]; } else { pt = get_coef_context(nb, token_cache, c); cost += (*token_costs)[!prev_t][pt][t] + vp9_dct_value_cost_ptr[v]; token_cache[rc] = vp9_pt_energy_class[t]; } prev_t = t; if (!--band_left) { band_left = *band_count++; ++token_costs; } } // eob token if (band_left) { if (use_fast_coef_costing) { cost += (*token_costs)[0][!prev_t][EOB_TOKEN]; } else { pt = get_coef_context(nb, token_cache, c); cost += (*token_costs)[0][pt][EOB_TOKEN]; } } } // is eob first coefficient; *A = *L = (c > 0); return cost; } static void dist_block(int plane, int block, TX_SIZE tx_size, struct rdcost_block_args* args) { const int ss_txfrm_size = tx_size << 1; MACROBLOCK* const x = args->x; MACROBLOCKD* const xd = &x->e_mbd; const struct macroblock_plane *const p = &x->plane[plane]; const struct macroblockd_plane *const pd = &xd->plane[plane]; int64_t this_sse; int shift = tx_size == TX_32X32 ? 0 : 2; tran_low_t *const coeff = BLOCK_OFFSET(p->coeff, block); tran_low_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); args->dist = vp9_block_error(coeff, dqcoeff, 16 << ss_txfrm_size, &this_sse) >> shift; args->sse = this_sse >> shift; if (x->skip_encode && !is_inter_block(&xd->mi[0].src_mi->mbmi)) { // TODO(jingning): tune the model to better capture the distortion. int64_t p = (pd->dequant[1] * pd->dequant[1] * (1 << ss_txfrm_size)) >> (shift + 2); args->dist += (p >> 4); args->sse += p; } } static void rate_block(int plane, int block, BLOCK_SIZE plane_bsize, TX_SIZE tx_size, struct rdcost_block_args* args) { int x_idx, y_idx; txfrm_block_to_raster_xy(plane_bsize, tx_size, block, &x_idx, &y_idx); args->rate = cost_coeffs(args->x, plane, block, args->t_above + x_idx, args->t_left + y_idx, tx_size, args->so->scan, args->so->neighbors, args->use_fast_coef_costing); } static void block_rd_txfm(int plane, int block, BLOCK_SIZE plane_bsize, TX_SIZE tx_size, void *arg) { struct rdcost_block_args *args = arg; MACROBLOCK *const x = args->x; MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mi[0].src_mi->mbmi; int64_t rd1, rd2, rd; if (args->skip) return; if (!is_inter_block(mbmi)) { vp9_encode_block_intra(x, plane, block, plane_bsize, tx_size, &mbmi->skip); dist_block(plane, block, tx_size, args); } else if (max_txsize_lookup[plane_bsize] == tx_size) { if (x->skip_txfm[(plane << 2) + (block >> (tx_size << 1))] == 0) { // full forward transform and quantization vp9_xform_quant(x, plane, block, plane_bsize, tx_size); dist_block(plane, block, tx_size, args); } else if (x->skip_txfm[(plane << 2) + (block >> (tx_size << 1))] == 2) { // compute DC coefficient 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]) args->dist = args->sse - ((coeff[0] * coeff[0] - (coeff[0] - dqcoeff[0]) * (coeff[0] - dqcoeff[0])) >> 2); } else { // skip forward transform x->plane[plane].eobs[block] = 0; args->sse = x->bsse[(plane << 2) + (block >> (tx_size << 1))] << 4; args->dist = args->sse; } } else { // full forward transform and quantization vp9_xform_quant(x, plane, block, plane_bsize, tx_size); dist_block(plane, block, tx_size, args); } rate_block(plane, block, plane_bsize, tx_size, args); rd1 = RDCOST(x->rdmult, x->rddiv, args->rate, args->dist); rd2 = RDCOST(x->rdmult, x->rddiv, 0, args->sse); // TODO(jingning): temporarily enabled only for luma component rd = MIN(rd1, rd2); if (plane == 0) x->zcoeff_blk[tx_size][block] = !x->plane[plane].eobs[block] || (rd1 > rd2 && !xd->lossless); args->this_rate += args->rate; args->this_dist += args->dist; args->this_sse += args->sse; args->this_rd += rd; if (args->this_rd > args->best_rd) { args->skip = 1; return; } } static void txfm_rd_in_plane(MACROBLOCK *x, int *rate, int64_t *distortion, int *skippable, int64_t *sse, int64_t ref_best_rd, int plane, BLOCK_SIZE bsize, TX_SIZE tx_size, int use_fast_coef_casting) { MACROBLOCKD *const xd = &x->e_mbd; const struct macroblockd_plane *const pd = &xd->plane[plane]; struct rdcost_block_args args; vp9_zero(args); args.x = x; args.best_rd = ref_best_rd; args.use_fast_coef_costing = use_fast_coef_casting; if (plane == 0) xd->mi[0].src_mi->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].src_mi->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].src_mi->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].src_mi->mbmi.sb_type); if (cpi->sf.tx_size_search_method == USE_LARGESTALL || xd->lossless) { vpx_memset(txfm_cache, 0, TX_MODES * sizeof(int64_t)); choose_largest_tx_size(cpi, x, rate, distortion, skip, ret_sse, ref_best_rd, bs); } else { choose_tx_size_from_rd(cpi, x, rate, distortion, skip, ret_sse, txfm_cache, ref_best_rd, bs); } } static int conditional_skipintra(PREDICTION_MODE mode, PREDICTION_MODE best_intra_mode) { if (mode == D117_PRED && best_intra_mode != V_PRED && best_intra_mode != D135_PRED) return 1; if (mode == D63_PRED && best_intra_mode != V_PRED && best_intra_mode != D45_PRED) return 1; if (mode == D207_PRED && best_intra_mode != H_PRED && best_intra_mode != D45_PRED) return 1; if (mode == D153_PRED && best_intra_mode != H_PRED && best_intra_mode != D135_PRED) return 1; return 0; } static int64_t rd_pick_intra4x4block(VP9_COMP *cpi, MACROBLOCK *x, int ib, PREDICTION_MODE *best_mode, const int *bmode_costs, ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l, int *bestrate, int *bestratey, int64_t *bestdistortion, BLOCK_SIZE bsize, int64_t rd_thresh) { PREDICTION_MODE mode; MACROBLOCKD *const xd = &x->e_mbd; int64_t best_rd = rd_thresh; struct macroblock_plane *p = &x->plane[0]; struct macroblockd_plane *pd = &xd->plane[0]; const int src_stride = p->src.stride; const int dst_stride = pd->dst.stride; const uint8_t *src_init = &p->src.buf[raster_block_offset(BLOCK_8X8, ib, src_stride)]; uint8_t *dst_init = &pd->dst.buf[raster_block_offset(BLOCK_8X8, ib, dst_stride)]; ENTROPY_CONTEXT ta[2], tempa[2]; ENTROPY_CONTEXT tl[2], templ[2]; const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize]; const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize]; int idx, idy; uint8_t best_dst[8 * 8]; assert(ib < 4); vpx_memcpy(ta, a, sizeof(ta)); vpx_memcpy(tl, l, sizeof(tl)); xd->mi[0].src_mi->mbmi.tx_size = TX_4X4; for (mode = DC_PRED; mode <= TM_PRED; ++mode) { int64_t this_rd; int ratey = 0; int64_t distortion = 0; int rate = bmode_costs[mode]; if (!(cpi->sf.intra_y_mode_mask[TX_4X4] & (1 << mode))) continue; // Only do the oblique modes if the best so far is // one of the neighboring directional modes if (cpi->sf.mode_search_skip_flags & FLAG_SKIP_INTRA_DIRMISMATCH) { if (conditional_skipintra(mode, *best_mode)) continue; } vpx_memcpy(tempa, ta, sizeof(ta)); vpx_memcpy(templ, tl, sizeof(tl)); for (idy = 0; idy < num_4x4_blocks_high; ++idy) { for (idx = 0; idx < num_4x4_blocks_wide; ++idx) { const int block = ib + idy * 2 + idx; const uint8_t *const src = &src_init[idx * 4 + idy * 4 * src_stride]; uint8_t *const dst = &dst_init[idx * 4 + idy * 4 * dst_stride]; int16_t *const src_diff = raster_block_offset_int16(BLOCK_8X8, block, p->src_diff); tran_low_t *const coeff = BLOCK_OFFSET(x->plane[0].coeff, block); xd->mi[0].src_mi->bmi[block].as_mode = mode; vp9_predict_intra_block(xd, block, 1, TX_4X4, mode, x->skip_encode ? src : dst, x->skip_encode ? src_stride : dst_stride, dst, dst_stride, idx, idy, 0); vp9_subtract_block(4, 4, src_diff, 8, src, src_stride, dst, dst_stride); if (xd->lossless) { const scan_order *so = &vp9_default_scan_orders[TX_4X4]; vp9_fwht4x4(src_diff, coeff, 8); vp9_regular_quantize_b_4x4(x, 0, block, so->scan, so->iscan); ratey += cost_coeffs(x, 0, block, tempa + idx, templ + idy, TX_4X4, so->scan, so->neighbors, cpi->sf.use_fast_coef_costing); if (RDCOST(x->rdmult, x->rddiv, ratey, distortion) >= best_rd) goto next; vp9_iwht4x4_add(BLOCK_OFFSET(pd->dqcoeff, block), dst, dst_stride, p->eobs[block]); } else { int64_t unused; const TX_TYPE tx_type = get_tx_type_4x4(PLANE_TYPE_Y, xd, block); const scan_order *so = &vp9_scan_orders[TX_4X4][tx_type]; vp9_fht4x4(src_diff, coeff, 8, tx_type); vp9_regular_quantize_b_4x4(x, 0, block, so->scan, so->iscan); ratey += cost_coeffs(x, 0, block, tempa + idx, templ + idy, TX_4X4, so->scan, so->neighbors, cpi->sf.use_fast_coef_costing); distortion += vp9_block_error(coeff, BLOCK_OFFSET(pd->dqcoeff, block), 16, &unused) >> 2; if (RDCOST(x->rdmult, x->rddiv, ratey, distortion) >= best_rd) goto next; vp9_iht4x4_add(tx_type, BLOCK_OFFSET(pd->dqcoeff, block), dst, dst_stride, p->eobs[block]); } } } rate += ratey; this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion); if (this_rd < best_rd) { *bestrate = rate; *bestratey = ratey; *bestdistortion = distortion; best_rd = this_rd; *best_mode = mode; vpx_memcpy(a, tempa, sizeof(tempa)); vpx_memcpy(l, templ, sizeof(templ)); for (idy = 0; idy < num_4x4_blocks_high * 4; ++idy) vpx_memcpy(best_dst + idy * 8, dst_init + idy * dst_stride, num_4x4_blocks_wide * 4); } next: {} } if (best_rd >= rd_thresh || x->skip_encode) return best_rd; for (idy = 0; idy < num_4x4_blocks_high * 4; ++idy) vpx_memcpy(dst_init + idy * dst_stride, best_dst + idy * 8, num_4x4_blocks_wide * 4); return best_rd; } static int64_t rd_pick_intra_sub_8x8_y_mode(VP9_COMP *cpi, MACROBLOCK *mb, int *rate, int *rate_y, int64_t *distortion, int64_t best_rd) { int i, j; const MACROBLOCKD *const xd = &mb->e_mbd; MODE_INFO *const mic = xd->mi[0].src_mi; const MODE_INFO *above_mi = xd->mi[-xd->mi_stride].src_mi; const MODE_INFO *left_mi = xd->left_available ? xd->mi[-1].src_mi : NULL; const BLOCK_SIZE bsize = xd->mi[0].src_mi->mbmi.sb_type; const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize]; const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize]; int idx, idy; int cost = 0; int64_t total_distortion = 0; int tot_rate_y = 0; int64_t total_rd = 0; ENTROPY_CONTEXT t_above[4], t_left[4]; const int *bmode_costs = cpi->mbmode_cost; vpx_memcpy(t_above, xd->plane[0].above_context, sizeof(t_above)); vpx_memcpy(t_left, xd->plane[0].left_context, sizeof(t_left)); // Pick modes for each sub-block (of size 4x4, 4x8, or 8x4) in an 8x8 block. for (idy = 0; idy < 2; idy += num_4x4_blocks_high) { for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) { PREDICTION_MODE best_mode = DC_PRED; int r = INT_MAX, ry = INT_MAX; int64_t d = INT64_MAX, this_rd = INT64_MAX; i = idy * 2 + idx; if (cpi->common.frame_type == KEY_FRAME) { const PREDICTION_MODE A = vp9_above_block_mode(mic, above_mi, i); const PREDICTION_MODE L = vp9_left_block_mode(mic, left_mi, i); bmode_costs = cpi->y_mode_costs[A][L]; } this_rd = rd_pick_intra4x4block(cpi, mb, i, &best_mode, bmode_costs, t_above + idx, t_left + idy, &r, &ry, &d, bsize, best_rd - total_rd); if (this_rd >= best_rd - total_rd) return INT64_MAX; total_rd += this_rd; cost += r; total_distortion += d; tot_rate_y += ry; mic->bmi[i].as_mode = best_mode; for (j = 1; j < num_4x4_blocks_high; ++j) mic->bmi[i + j * 2].as_mode = best_mode; for (j = 1; j < num_4x4_blocks_wide; ++j) mic->bmi[i + j].as_mode = best_mode; if (total_rd >= best_rd) return INT64_MAX; } } *rate = cost; *rate_y = tot_rate_y; *distortion = total_distortion; mic->mbmi.mode = mic->bmi[3].as_mode; return RDCOST(mb->rdmult, mb->rddiv, cost, total_distortion); } // 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].src_mi; 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->mi[-xd->mi_stride].src_mi; const MODE_INFO *left_mi = xd->left_available ? xd->mi[-1].src_mi : NULL; 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; /* Y Search for intra prediction mode */ for (mode = DC_PRED; mode <= TM_PRED; mode++) { int64_t local_tx_cache[TX_MODES]; mic->mbmi.mode = mode; super_block_yrd(cpi, x, &this_rate_tokenonly, &this_distortion, &s, NULL, bsize, local_tx_cache, best_rd); if (this_rate_tokenonly == INT_MAX) continue; this_rate = this_rate_tokenonly + bmode_costs[mode]; this_rd = RDCOST(x->rdmult, x->rddiv, this_rate, this_distortion); if (this_rd < best_rd) { mode_selected = mode; best_rd = this_rd; best_tx = mic->mbmi.tx_size; *rate = this_rate; *rate_tokenonly = this_rate_tokenonly; *distortion = this_distortion; *skippable = s; } if (cpi->sf.tx_size_search_method == USE_FULL_RD && this_rd < INT64_MAX) { for (i = 0; i < TX_MODES && local_tx_cache[i] < INT64_MAX; i++) { const int64_t adj_rd = this_rd + local_tx_cache[i] - local_tx_cache[cpi->common.tx_mode]; if (adj_rd < tx_cache[i]) { tx_cache[i] = adj_rd; } } } } mic->mbmi.mode = mode_selected; mic->mbmi.tx_size = best_tx; return best_rd; } static void super_block_uvrd(const VP9_COMP *cpi, MACROBLOCK *x, int *rate, int64_t *distortion, int *skippable, int64_t *sse, BLOCK_SIZE bsize, int64_t ref_best_rd) { MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mi[0].src_mi->mbmi; const TX_SIZE uv_tx_size = get_uv_tx_size(mbmi, &xd->plane[1]); int plane; int pnrate = 0, pnskip = 1; int64_t pndist = 0, pnsse = 0; if (ref_best_rd < 0) goto term; if (is_inter_block(mbmi)) { int plane; for (plane = 1; plane < MAX_MB_PLANE; ++plane) vp9_subtract_plane(x, bsize, plane); } *rate = 0; *distortion = 0; *sse = 0; *skippable = 1; for (plane = 1; plane < MAX_MB_PLANE; ++plane) { txfm_rd_in_plane(x, &pnrate, &pndist, &pnskip, &pnsse, ref_best_rd, plane, bsize, uv_tx_size, cpi->sf.use_fast_coef_costing); if (pnrate == INT_MAX) goto term; *rate += pnrate; *distortion += pndist; *sse += pnsse; *skippable &= pnskip; } return; term: *rate = INT_MAX; *distortion = INT64_MAX; *sse = INT64_MAX; *skippable = 0; return; } static int64_t rd_pick_intra_sbuv_mode(VP9_COMP *cpi, MACROBLOCK *x, PICK_MODE_CONTEXT *ctx, int *rate, int *rate_tokenonly, int64_t *distortion, int *skippable, BLOCK_SIZE bsize, TX_SIZE max_tx_size) { MACROBLOCKD *xd = &x->e_mbd; PREDICTION_MODE mode; PREDICTION_MODE mode_selected = DC_PRED; int64_t best_rd = INT64_MAX, this_rd; int this_rate_tokenonly, this_rate, s; int64_t this_distortion, this_sse; for (mode = DC_PRED; mode <= TM_PRED; ++mode) { if (!(cpi->sf.intra_uv_mode_mask[max_tx_size] & (1 << mode))) continue; xd->mi[0].src_mi->mbmi.uv_mode = mode; super_block_uvrd(cpi, x, &this_rate_tokenonly, &this_distortion, &s, &this_sse, bsize, best_rd); if (this_rate_tokenonly == INT_MAX) continue; this_rate = this_rate_tokenonly + cpi->intra_uv_mode_cost[cpi->common.frame_type][mode]; this_rd = RDCOST(x->rdmult, x->rddiv, this_rate, this_distortion); if (this_rd < best_rd) { mode_selected = mode; best_rd = this_rd; *rate = this_rate; *rate_tokenonly = this_rate_tokenonly; *distortion = this_distortion; *skippable = s; if (!x->select_tx_size) swap_block_ptr(x, ctx, 2, 0, 1, MAX_MB_PLANE); } } xd->mi[0].src_mi->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].src_mi->mbmi.uv_mode = DC_PRED; super_block_uvrd(cpi, x, rate_tokenonly, distortion, skippable, &unused, bsize, INT64_MAX); *rate = *rate_tokenonly + cpi->intra_uv_mode_cost[cm->frame_type][DC_PRED]; return RDCOST(x->rdmult, x->rddiv, *rate, *distortion); } static void choose_intra_uv_mode(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx, BLOCK_SIZE bsize, TX_SIZE max_tx_size, int *rate_uv, int *rate_uv_tokenonly, int64_t *dist_uv, int *skip_uv, PREDICTION_MODE *mode_uv) { MACROBLOCK *const x = &cpi->mb; // Use an estimated rd for uv_intra based on DC_PRED if the // appropriate speed flag is set. if (cpi->sf.use_uv_intra_rd_estimate) { rd_sbuv_dcpred(cpi, x, rate_uv, rate_uv_tokenonly, dist_uv, skip_uv, bsize < BLOCK_8X8 ? BLOCK_8X8 : bsize); // Else do a proper rd search for each possible transform size that may // be considered in the main rd loop. } else { rd_pick_intra_sbuv_mode(cpi, x, ctx, rate_uv, rate_uv_tokenonly, dist_uv, skip_uv, bsize < BLOCK_8X8 ? BLOCK_8X8 : bsize, max_tx_size); } *mode_uv = x->e_mbd.mi[0].src_mi->mbmi.uv_mode; } static int cost_mv_ref(const VP9_COMP *cpi, PREDICTION_MODE mode, int mode_context) { assert(is_inter_mode(mode)); return cpi->inter_mode_cost[mode_context][INTER_OFFSET(mode)]; } static void joint_motion_search(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, int_mv *frame_mv, int mi_row, int mi_col, int_mv single_newmv[MAX_REF_FRAMES], int *rate_mv); static int set_and_cost_bmi_mvs(VP9_COMP *cpi, MACROBLOCKD *xd, int i, PREDICTION_MODE mode, int_mv this_mv[2], int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES], int_mv seg_mvs[MAX_REF_FRAMES], int_mv *best_ref_mv[2], const int *mvjcost, int *mvcost[2]) { MODE_INFO *const mic = xd->mi[0].src_mi; const MB_MODE_INFO *const mbmi = &mic->mbmi; int thismvcost = 0; int idx, idy; const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[mbmi->sb_type]; const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[mbmi->sb_type]; const int is_compound = has_second_ref(mbmi); switch (mode) { case NEWMV: this_mv[0].as_int = seg_mvs[mbmi->ref_frame[0]].as_int; thismvcost += vp9_mv_bit_cost(&this_mv[0].as_mv, &best_ref_mv[0]->as_mv, mvjcost, mvcost, MV_COST_WEIGHT_SUB); if (is_compound) { this_mv[1].as_int = seg_mvs[mbmi->ref_frame[1]].as_int; thismvcost += vp9_mv_bit_cost(&this_mv[1].as_mv, &best_ref_mv[1]->as_mv, mvjcost, mvcost, MV_COST_WEIGHT_SUB); } break; case NEARMV: case NEARESTMV: this_mv[0].as_int = frame_mv[mode][mbmi->ref_frame[0]].as_int; if (is_compound) this_mv[1].as_int = frame_mv[mode][mbmi->ref_frame[1]].as_int; break; case ZEROMV: this_mv[0].as_int = 0; if (is_compound) this_mv[1].as_int = 0; break; default: break; } mic->bmi[i].as_mv[0].as_int = this_mv[0].as_int; if (is_compound) mic->bmi[i].as_mv[1].as_int = this_mv[1].as_int; mic->bmi[i].as_mode = mode; for (idy = 0; idy < num_4x4_blocks_high; ++idy) for (idx = 0; idx < num_4x4_blocks_wide; ++idx) vpx_memcpy(&mic->bmi[i + idy * 2 + idx], &mic->bmi[i], sizeof(mic->bmi[i])); return cost_mv_ref(cpi, mode, mbmi->mode_context[mbmi->ref_frame[0]]) + thismvcost; } static int64_t encode_inter_mb_segment(VP9_COMP *cpi, MACROBLOCK *x, int64_t best_yrd, int i, int *labelyrate, int64_t *distortion, int64_t *sse, ENTROPY_CONTEXT *ta, ENTROPY_CONTEXT *tl, int mi_row, int mi_col) { int k; MACROBLOCKD *xd = &x->e_mbd; struct macroblockd_plane *const pd = &xd->plane[0]; struct macroblock_plane *const p = &x->plane[0]; MODE_INFO *const mi = xd->mi[0].src_mi; const BLOCK_SIZE plane_bsize = get_plane_block_size(mi->mbmi.sb_type, pd); const int width = 4 * num_4x4_blocks_wide_lookup[plane_bsize]; const int height = 4 * num_4x4_blocks_high_lookup[plane_bsize]; int idx, idy; const uint8_t *const src = &p->src.buf[raster_block_offset(BLOCK_8X8, i, p->src.stride)]; uint8_t *const dst = &pd->dst.buf[raster_block_offset(BLOCK_8X8, i, pd->dst.stride)]; int64_t thisdistortion = 0, thissse = 0; int thisrate = 0, ref; const scan_order *so = &vp9_default_scan_orders[TX_4X4]; const int is_compound = has_second_ref(&mi->mbmi); const InterpKernel *kernel = vp9_get_interp_kernel(mi->mbmi.interp_filter); for (ref = 0; ref < 1 + is_compound; ++ref) { const uint8_t *pre = &pd->pre[ref].buf[raster_block_offset(BLOCK_8X8, i, pd->pre[ref].stride)]; vp9_build_inter_predictor(pre, pd->pre[ref].stride, dst, pd->dst.stride, &mi->bmi[i].as_mv[ref].as_mv, &xd->block_refs[ref]->sf, width, height, ref, kernel, MV_PRECISION_Q3, mi_col * MI_SIZE + 4 * (i % 2), mi_row * MI_SIZE + 4 * (i / 2)); } vp9_subtract_block(height, width, raster_block_offset_int16(BLOCK_8X8, i, p->src_diff), 8, src, p->src.stride, dst, pd->dst.stride); k = i; for (idy = 0; idy < height / 4; ++idy) { for (idx = 0; idx < width / 4; ++idx) { int64_t ssz, rd, rd1, rd2; tran_low_t* coeff; k += (idy * 2 + idx); coeff = BLOCK_OFFSET(p->coeff, k); x->fwd_txm4x4(raster_block_offset_int16(BLOCK_8X8, k, p->src_diff), coeff, 8); vp9_regular_quantize_b_4x4(x, 0, k, so->scan, so->iscan); thisdistortion += vp9_block_error(coeff, BLOCK_OFFSET(pd->dqcoeff, k), 16, &ssz); thissse += ssz; thisrate += cost_coeffs(x, 0, k, ta + (k & 1), tl + (k >> 1), TX_4X4, so->scan, so->neighbors, cpi->sf.use_fast_coef_costing); rd1 = RDCOST(x->rdmult, x->rddiv, thisrate, thisdistortion >> 2); rd2 = RDCOST(x->rdmult, x->rddiv, 0, thissse >> 2); rd = MIN(rd1, rd2); if (rd >= best_yrd) return INT64_MAX; } } *distortion = thisdistortion >> 2; *labelyrate = thisrate; *sse = thissse >> 2; return RDCOST(x->rdmult, x->rddiv, *labelyrate, *distortion); } typedef struct { int eobs; int brate; int byrate; int64_t bdist; int64_t bsse; int64_t brdcost; int_mv mvs[2]; ENTROPY_CONTEXT ta[2]; ENTROPY_CONTEXT tl[2]; } SEG_RDSTAT; typedef struct { int_mv *ref_mv[2]; int_mv mvp; int64_t segment_rd; int r; int64_t d; int64_t sse; int segment_yrate; PREDICTION_MODE modes[4]; SEG_RDSTAT rdstat[4][INTER_MODES]; int mvthresh; } BEST_SEG_INFO; static INLINE int mv_check_bounds(const MACROBLOCK *x, const MV *mv) { return (mv->row >> 3) < x->mv_row_min || (mv->row >> 3) > x->mv_row_max || (mv->col >> 3) < x->mv_col_min || (mv->col >> 3) > x->mv_col_max; } static INLINE void mi_buf_shift(MACROBLOCK *x, int i) { MB_MODE_INFO *const mbmi = &x->e_mbd.mi[0].src_mi->mbmi; struct macroblock_plane *const p = &x->plane[0]; struct macroblockd_plane *const pd = &x->e_mbd.plane[0]; p->src.buf = &p->src.buf[raster_block_offset(BLOCK_8X8, i, p->src.stride)]; assert(((intptr_t)pd->pre[0].buf & 0x7) == 0); pd->pre[0].buf = &pd->pre[0].buf[raster_block_offset(BLOCK_8X8, i, pd->pre[0].stride)]; if (has_second_ref(mbmi)) pd->pre[1].buf = &pd->pre[1].buf[raster_block_offset(BLOCK_8X8, i, pd->pre[1].stride)]; } static INLINE void mi_buf_restore(MACROBLOCK *x, struct buf_2d orig_src, struct buf_2d orig_pre[2]) { MB_MODE_INFO *mbmi = &x->e_mbd.mi[0].src_mi->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 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].src_mi; MB_MODE_INFO *mbmi = &mi->mbmi; int mode_idx; int k, br = 0, idx, idy; int64_t bd = 0, block_sse = 0; PREDICTION_MODE this_mode; VP9_COMMON *cm = &cpi->common; struct macroblock_plane *const p = &x->plane[0]; struct macroblockd_plane *const pd = &xd->plane[0]; const int label_count = 4; int64_t this_segment_rd = 0; int label_mv_thresh; int segmentyrate = 0; const BLOCK_SIZE bsize = mbmi->sb_type; const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize]; const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize]; ENTROPY_CONTEXT t_above[2], t_left[2]; int subpelmv = 1, have_ref = 0; const int has_second_rf = has_second_ref(mbmi); const int inter_mode_mask = cpi->sf.inter_mode_mask[bsize]; vp9_zero(*bsi); bsi->segment_rd = best_rd; bsi->ref_mv[0] = best_ref_mv; bsi->ref_mv[1] = second_best_ref_mv; bsi->mvp.as_int = best_ref_mv->as_int; bsi->mvthresh = mvthresh; for (i = 0; i < 4; i++) bsi->modes[i] = ZEROMV; vpx_memcpy(t_above, pd->above_context, sizeof(t_above)); vpx_memcpy(t_left, pd->left_context, sizeof(t_left)); // 64 makes this threshold really big effectively // making it so that we very rarely check mvs on // segments. setting this to 1 would make mv thresh // roughly equal to what it is for macroblocks label_mv_thresh = 1 * bsi->mvthresh / label_count; // Segmentation method overheads for (idy = 0; idy < 2; idy += num_4x4_blocks_high) { for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) { // TODO(jingning,rbultje): rewrite the rate-distortion optimization // loop for 4x4/4x8/8x4 block coding. to be replaced with new rd loop int_mv mode_mv[MB_MODE_COUNT][2]; int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES]; PREDICTION_MODE mode_selected = ZEROMV; int64_t best_rd = INT64_MAX; const int i = idy * 2 + idx; int ref; for (ref = 0; ref < 1 + has_second_rf; ++ref) { const MV_REFERENCE_FRAME frame = mbmi->ref_frame[ref]; frame_mv[ZEROMV][frame].as_int = 0; vp9_append_sub8x8_mvs_for_idx(cm, xd, tile, i, ref, mi_row, mi_col, &frame_mv[NEARESTMV][frame], &frame_mv[NEARMV][frame]); } // search for the best motion vector on this segment for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) { const struct buf_2d orig_src = x->plane[0].src; struct buf_2d orig_pre[2]; mode_idx = INTER_OFFSET(this_mode); bsi->rdstat[i][mode_idx].brdcost = INT64_MAX; if (!(inter_mode_mask & (1 << this_mode))) continue; if (!check_best_zero_mv(cpi, mbmi->mode_context, frame_mv, this_mode, mbmi->ref_frame)) continue; vpx_memcpy(orig_pre, pd->pre, sizeof(orig_pre)); vpx_memcpy(bsi->rdstat[i][mode_idx].ta, t_above, sizeof(bsi->rdstat[i][mode_idx].ta)); vpx_memcpy(bsi->rdstat[i][mode_idx].tl, t_left, sizeof(bsi->rdstat[i][mode_idx].tl)); // motion search for newmv (single predictor case only) if (!has_second_rf && this_mode == NEWMV && seg_mvs[i][mbmi->ref_frame[0]].as_int == INVALID_MV) { MV *const new_mv = &mode_mv[NEWMV][0].as_mv; int step_param = 0; int thissme, bestsme = INT_MAX; int sadpb = x->sadperbit4; MV mvp_full; int max_mv; int sad_list[5]; /* Is the best so far sufficiently good that we cant justify doing * and new motion search. */ if (best_rd < label_mv_thresh) break; if (cpi->oxcf.mode != BEST) { // use previous block's result as next block's MV predictor. if (i > 0) { bsi->mvp.as_int = mi->bmi[i - 1].as_mv[0].as_int; if (i == 2) bsi->mvp.as_int = mi->bmi[i - 2].as_mv[0].as_int; } } if (i == 0) max_mv = x->max_mv_context[mbmi->ref_frame[0]]; else max_mv = MAX(abs(bsi->mvp.as_mv.row), abs(bsi->mvp.as_mv.col)) >> 3; if (cpi->sf.mv.auto_mv_step_size && cm->show_frame) { // Take wtd average of the step_params based on the last frame's // max mv magnitude and the best ref mvs of the current block for // the given reference. step_param = (vp9_init_search_range(max_mv) + cpi->mv_step_param) / 2; } else { step_param = cpi->mv_step_param; } mvp_full.row = bsi->mvp.as_mv.row >> 3; mvp_full.col = bsi->mvp.as_mv.col >> 3; if (cpi->sf.adaptive_motion_search) { mvp_full.row = x->pred_mv[mbmi->ref_frame[0]].row >> 3; mvp_full.col = x->pred_mv[mbmi->ref_frame[0]].col >> 3; step_param = MAX(step_param, 8); } // adjust src pointer for this block mi_buf_shift(x, i); vp9_set_mv_search_range(x, &bsi->ref_mv[0]->as_mv); bestsme = vp9_full_pixel_search( cpi, x, bsize, &mvp_full, step_param, sadpb, cpi->sf.mv.subpel_search_method != SUBPEL_TREE ? sad_list : NULL, &bsi->ref_mv[0]->as_mv, new_mv, INT_MAX, 1); // Should we do a full search (best quality only) if (cpi->oxcf.mode == BEST) { int_mv *const best_mv = &mi->bmi[i].as_mv[0]; /* Check if mvp_full is within the range. */ clamp_mv(&mvp_full, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max); thissme = cpi->full_search_sad(x, &mvp_full, sadpb, 16, &cpi->fn_ptr[bsize], &bsi->ref_mv[0]->as_mv, &best_mv->as_mv); sad_list[1] = sad_list[2] = sad_list[3] = sad_list[4] = INT_MAX; if (thissme < bestsme) { bestsme = thissme; *new_mv = best_mv->as_mv; } else { // The full search result is actually worse so re-instate the // previous best vector best_mv->as_mv = *new_mv; } } if (bestsme < INT_MAX) { int distortion; cpi->find_fractional_mv_step( x, new_mv, &bsi->ref_mv[0]->as_mv, cm->allow_high_precision_mv, x->errorperbit, &cpi->fn_ptr[bsize], cpi->sf.mv.subpel_force_stop, cpi->sf.mv.subpel_iters_per_step, cond_sad_list(cpi, sad_list), x->nmvjointcost, x->mvcost, &distortion, &x->pred_sse[mbmi->ref_frame[0]], NULL, 0, 0); // save motion search result for use in compound prediction seg_mvs[i][mbmi->ref_frame[0]].as_mv = *new_mv; } if (cpi->sf.adaptive_motion_search) x->pred_mv[mbmi->ref_frame[0]] = *new_mv; // restore src pointers mi_buf_restore(x, orig_src, orig_pre); } if (has_second_rf) { if (seg_mvs[i][mbmi->ref_frame[1]].as_int == INVALID_MV || seg_mvs[i][mbmi->ref_frame[0]].as_int == INVALID_MV) continue; } if (has_second_rf && this_mode == NEWMV && mbmi->interp_filter == EIGHTTAP) { // adjust src pointers mi_buf_shift(x, i); if (cpi->sf.comp_inter_joint_search_thresh <= bsize) { int rate_mv; joint_motion_search(cpi, x, bsize, frame_mv[this_mode], mi_row, mi_col, seg_mvs[i], &rate_mv); seg_mvs[i][mbmi->ref_frame[0]].as_int = frame_mv[this_mode][mbmi->ref_frame[0]].as_int; seg_mvs[i][mbmi->ref_frame[1]].as_int = frame_mv[this_mode][mbmi->ref_frame[1]].as_int; } // restore src pointers mi_buf_restore(x, orig_src, orig_pre); } bsi->rdstat[i][mode_idx].brate = set_and_cost_bmi_mvs(cpi, xd, i, this_mode, mode_mv[this_mode], frame_mv, seg_mvs[i], bsi->ref_mv, x->nmvjointcost, x->mvcost); for (ref = 0; ref < 1 + has_second_rf; ++ref) { bsi->rdstat[i][mode_idx].mvs[ref].as_int = mode_mv[this_mode][ref].as_int; if (num_4x4_blocks_wide > 1) bsi->rdstat[i + 1][mode_idx].mvs[ref].as_int = mode_mv[this_mode][ref].as_int; if (num_4x4_blocks_high > 1) bsi->rdstat[i + 2][mode_idx].mvs[ref].as_int = mode_mv[this_mode][ref].as_int; } // Trap vectors that reach beyond the UMV borders if (mv_check_bounds(x, &mode_mv[this_mode][0].as_mv) || (has_second_rf && mv_check_bounds(x, &mode_mv[this_mode][1].as_mv))) continue; if (filter_idx > 0) { BEST_SEG_INFO *ref_bsi = bsi_buf; subpelmv = 0; have_ref = 1; for (ref = 0; ref < 1 + has_second_rf; ++ref) { subpelmv |= mv_has_subpel(&mode_mv[this_mode][ref].as_mv); have_ref &= mode_mv[this_mode][ref].as_int == ref_bsi->rdstat[i][mode_idx].mvs[ref].as_int; } if (filter_idx > 1 && !subpelmv && !have_ref) { ref_bsi = bsi_buf + 1; have_ref = 1; for (ref = 0; ref < 1 + has_second_rf; ++ref) have_ref &= mode_mv[this_mode][ref].as_int == ref_bsi->rdstat[i][mode_idx].mvs[ref].as_int; } if (!subpelmv && have_ref && ref_bsi->rdstat[i][mode_idx].brdcost < INT64_MAX) { vpx_memcpy(&bsi->rdstat[i][mode_idx], &ref_bsi->rdstat[i][mode_idx], sizeof(SEG_RDSTAT)); if (num_4x4_blocks_wide > 1) bsi->rdstat[i + 1][mode_idx].eobs = ref_bsi->rdstat[i + 1][mode_idx].eobs; if (num_4x4_blocks_high > 1) bsi->rdstat[i + 2][mode_idx].eobs = ref_bsi->rdstat[i + 2][mode_idx].eobs; if (bsi->rdstat[i][mode_idx].brdcost < best_rd) { mode_selected = this_mode; best_rd = bsi->rdstat[i][mode_idx].brdcost; } continue; } } bsi->rdstat[i][mode_idx].brdcost = encode_inter_mb_segment(cpi, x, bsi->segment_rd - this_segment_rd, i, &bsi->rdstat[i][mode_idx].byrate, &bsi->rdstat[i][mode_idx].bdist, &bsi->rdstat[i][mode_idx].bsse, bsi->rdstat[i][mode_idx].ta, bsi->rdstat[i][mode_idx].tl, mi_row, mi_col); if (bsi->rdstat[i][mode_idx].brdcost < INT64_MAX) { bsi->rdstat[i][mode_idx].brdcost += RDCOST(x->rdmult, x->rddiv, bsi->rdstat[i][mode_idx].brate, 0); bsi->rdstat[i][mode_idx].brate += bsi->rdstat[i][mode_idx].byrate; bsi->rdstat[i][mode_idx].eobs = p->eobs[i]; if (num_4x4_blocks_wide > 1) bsi->rdstat[i + 1][mode_idx].eobs = p->eobs[i + 1]; if (num_4x4_blocks_high > 1) bsi->rdstat[i + 2][mode_idx].eobs = p->eobs[i + 2]; } if (bsi->rdstat[i][mode_idx].brdcost < best_rd) { mode_selected = this_mode; best_rd = bsi->rdstat[i][mode_idx].brdcost; } } /*for each 4x4 mode*/ if (best_rd == INT64_MAX) { int iy, midx; for (iy = i + 1; iy < 4; ++iy) for (midx = 0; midx < INTER_MODES; ++midx) bsi->rdstat[iy][midx].brdcost = INT64_MAX; bsi->segment_rd = INT64_MAX; return INT64_MAX;; } mode_idx = INTER_OFFSET(mode_selected); vpx_memcpy(t_above, bsi->rdstat[i][mode_idx].ta, sizeof(t_above)); vpx_memcpy(t_left, bsi->rdstat[i][mode_idx].tl, sizeof(t_left)); set_and_cost_bmi_mvs(cpi, xd, i, mode_selected, mode_mv[mode_selected], frame_mv, seg_mvs[i], bsi->ref_mv, x->nmvjointcost, x->mvcost); br += bsi->rdstat[i][mode_idx].brate; bd += bsi->rdstat[i][mode_idx].bdist; block_sse += bsi->rdstat[i][mode_idx].bsse; segmentyrate += bsi->rdstat[i][mode_idx].byrate; this_segment_rd += bsi->rdstat[i][mode_idx].brdcost; if (this_segment_rd > bsi->segment_rd) { int iy, midx; for (iy = i + 1; iy < 4; ++iy) for (midx = 0; midx < INTER_MODES; ++midx) bsi->rdstat[iy][midx].brdcost = INT64_MAX; bsi->segment_rd = INT64_MAX; return INT64_MAX;; } } } /* for each label */ bsi->r = br; bsi->d = bd; bsi->segment_yrate = segmentyrate; bsi->segment_rd = this_segment_rd; bsi->sse = block_sse; // update the coding decisions for (k = 0; k < 4; ++k) bsi->modes[k] = mi->bmi[k].as_mode; if (bsi->segment_rd > best_rd) return INT64_MAX; /* set it to the best */ for (i = 0; i < 4; i++) { mode_idx = INTER_OFFSET(bsi->modes[i]); mi->bmi[i].as_mv[0].as_int = bsi->rdstat[i][mode_idx].mvs[0].as_int; if (has_second_ref(mbmi)) mi->bmi[i].as_mv[1].as_int = bsi->rdstat[i][mode_idx].mvs[1].as_int; x->plane[0].eobs[i] = bsi->rdstat[i][mode_idx].eobs; mi->bmi[i].as_mode = bsi->modes[i]; } /* * used to set mbmi->mv.as_int */ *returntotrate = bsi->r; *returndistortion = bsi->d; *returnyrate = bsi->segment_yrate; *skippable = vp9_is_skippable_in_plane(x, BLOCK_8X8, 0); *psse = bsi->sse; mbmi->mode = bsi->modes[3]; return bsi->segment_rd; } static void estimate_ref_frame_costs(const VP9_COMMON *cm, const MACROBLOCKD *xd, int segment_id, unsigned int *ref_costs_single, unsigned int *ref_costs_comp, vp9_prob *comp_mode_p) { int seg_ref_active = vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME); if (seg_ref_active) { vpx_memset(ref_costs_single, 0, MAX_REF_FRAMES * sizeof(*ref_costs_single)); vpx_memset(ref_costs_comp, 0, MAX_REF_FRAMES * sizeof(*ref_costs_comp)); *comp_mode_p = 128; } else { vp9_prob intra_inter_p = vp9_get_intra_inter_prob(cm, xd); vp9_prob comp_inter_p = 128; if (cm->reference_mode == REFERENCE_MODE_SELECT) { comp_inter_p = vp9_get_reference_mode_prob(cm, xd); *comp_mode_p = comp_inter_p; } else { *comp_mode_p = 128; } ref_costs_single[INTRA_FRAME] = vp9_cost_bit(intra_inter_p, 0); if (cm->reference_mode != COMPOUND_REFERENCE) { vp9_prob ref_single_p1 = vp9_get_pred_prob_single_ref_p1(cm, xd); vp9_prob ref_single_p2 = vp9_get_pred_prob_single_ref_p2(cm, xd); unsigned int base_cost = vp9_cost_bit(intra_inter_p, 1); if (cm->reference_mode == REFERENCE_MODE_SELECT) base_cost += vp9_cost_bit(comp_inter_p, 0); ref_costs_single[LAST_FRAME] = ref_costs_single[GOLDEN_FRAME] = ref_costs_single[ALTREF_FRAME] = base_cost; ref_costs_single[LAST_FRAME] += vp9_cost_bit(ref_single_p1, 0); ref_costs_single[GOLDEN_FRAME] += vp9_cost_bit(ref_single_p1, 1); ref_costs_single[ALTREF_FRAME] += vp9_cost_bit(ref_single_p1, 1); ref_costs_single[GOLDEN_FRAME] += vp9_cost_bit(ref_single_p2, 0); ref_costs_single[ALTREF_FRAME] += vp9_cost_bit(ref_single_p2, 1); } else { ref_costs_single[LAST_FRAME] = 512; ref_costs_single[GOLDEN_FRAME] = 512; ref_costs_single[ALTREF_FRAME] = 512; } if (cm->reference_mode != SINGLE_REFERENCE) { vp9_prob ref_comp_p = vp9_get_pred_prob_comp_ref_p(cm, xd); unsigned int base_cost = vp9_cost_bit(intra_inter_p, 1); if (cm->reference_mode == REFERENCE_MODE_SELECT) base_cost += vp9_cost_bit(comp_inter_p, 1); ref_costs_comp[LAST_FRAME] = base_cost + vp9_cost_bit(ref_comp_p, 0); ref_costs_comp[GOLDEN_FRAME] = base_cost + vp9_cost_bit(ref_comp_p, 1); } else { ref_costs_comp[LAST_FRAME] = 512; ref_costs_comp[GOLDEN_FRAME] = 512; } } } static void store_coding_context(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx, int mode_index, int64_t comp_pred_diff[REFERENCE_MODES], const int64_t tx_size_diff[TX_MODES], int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS], int skippable) { MACROBLOCKD *const xd = &x->e_mbd; // Take a snapshot of the coding context so it can be // restored if we decide to encode this way ctx->skip = x->skip; ctx->skippable = skippable; ctx->best_mode_index = mode_index; ctx->mic = *xd->mi[0].src_mi; ctx->single_pred_diff = (int)comp_pred_diff[SINGLE_REFERENCE]; ctx->comp_pred_diff = (int)comp_pred_diff[COMPOUND_REFERENCE]; ctx->hybrid_pred_diff = (int)comp_pred_diff[REFERENCE_MODE_SELECT]; vpx_memcpy(ctx->tx_rd_diff, tx_size_diff, sizeof(ctx->tx_rd_diff)); vpx_memcpy(ctx->best_filter_diff, best_filter_diff, sizeof(*best_filter_diff) * SWITCHABLE_FILTER_CONTEXTS); } static void setup_buffer_inter(VP9_COMP *cpi, MACROBLOCK *x, const TileInfo *const tile, MV_REFERENCE_FRAME ref_frame, BLOCK_SIZE block_size, int mi_row, int mi_col, int_mv frame_nearest_mv[MAX_REF_FRAMES], int_mv frame_near_mv[MAX_REF_FRAMES], struct buf_2d yv12_mb[4][MAX_MB_PLANE]) { const VP9_COMMON *cm = &cpi->common; const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, ref_frame); MACROBLOCKD *const xd = &x->e_mbd; MODE_INFO *const mi = xd->mi[0].src_mi; int_mv *const candidates = mi->mbmi.ref_mvs[ref_frame]; const struct scale_factors *const sf = &cm->frame_refs[ref_frame - 1].sf; // TODO(jkoleszar): Is the UV buffer ever used here? If so, need to make this // use the UV scaling factors. vp9_setup_pred_block(xd, yv12_mb[ref_frame], yv12, mi_row, mi_col, sf, sf); // Gets an initial list of candidate vectors from neighbours and orders them vp9_find_mv_refs(cm, xd, tile, mi, ref_frame, candidates, mi_row, mi_col); // Candidate refinement carried out at encoder and decoder vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv, candidates, &frame_nearest_mv[ref_frame], &frame_near_mv[ref_frame]); // Further refinement that is encode side only to test the top few candidates // in full and choose the best as the centre point for subsequent searches. // The current implementation doesn't support scaling. if (!vp9_is_scaled(sf) && block_size >= BLOCK_8X8) vp9_mv_pred(cpi, x, yv12_mb[ref_frame][0].buf, yv12->y_stride, ref_frame, block_size); } static void single_motion_search(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, int mi_row, int mi_col, int_mv *tmp_mv, int *rate_mv) { MACROBLOCKD *xd = &x->e_mbd; const VP9_COMMON *cm = &cpi->common; MB_MODE_INFO *mbmi = &xd->mi[0].src_mi->mbmi; struct buf_2d backup_yv12[MAX_MB_PLANE] = {{0, 0}}; int bestsme = INT_MAX; int step_param; int sadpb = x->sadperbit16; MV mvp_full; int ref = mbmi->ref_frame[0]; MV ref_mv = mbmi->ref_mvs[ref][0].as_mv; int tmp_col_min = x->mv_col_min; int tmp_col_max = x->mv_col_max; int tmp_row_min = x->mv_row_min; int tmp_row_max = x->mv_row_max; int sad_list[5]; const YV12_BUFFER_CONFIG *scaled_ref_frame = vp9_get_scaled_ref_frame(cpi, ref); MV pred_mv[3]; pred_mv[0] = mbmi->ref_mvs[ref][0].as_mv; pred_mv[1] = mbmi->ref_mvs[ref][1].as_mv; pred_mv[2] = x->pred_mv[ref]; if (scaled_ref_frame) { int i; // Swap out the reference frame for a version that's been scaled to // match the resolution of the current frame, allowing the existing // motion search code to be used without additional modifications. for (i = 0; i < MAX_MB_PLANE; i++) backup_yv12[i] = xd->plane[i].pre[0]; vp9_setup_pre_planes(xd, 0, scaled_ref_frame, mi_row, mi_col, NULL); } vp9_set_mv_search_range(x, &ref_mv); // Work out the size of the first step in the mv step search. // 0 here is maximum length first step. 1 is MAX >> 1 etc. if (cpi->sf.mv.auto_mv_step_size && cm->show_frame) { // Take wtd average of the step_params based on the last frame's // max mv magnitude and that based on the best ref mvs of the current // block for the given reference. step_param = (vp9_init_search_range(x->max_mv_context[ref]) + cpi->mv_step_param) / 2; } else { step_param = cpi->mv_step_param; } if (cpi->sf.adaptive_motion_search && bsize < BLOCK_64X64) { int boffset = 2 * (b_width_log2(BLOCK_64X64) - MIN(b_height_log2(bsize), b_width_log2(bsize))); step_param = MAX(step_param, boffset); } if (cpi->sf.adaptive_motion_search) { int bwl = b_width_log2(bsize); int bhl = b_height_log2(bsize); int i; int tlevel = x->pred_mv_sad[ref] >> (bwl + bhl + 4); if (tlevel < 5) step_param += 2; for (i = LAST_FRAME; i <= ALTREF_FRAME && cm->show_frame; ++i) { if ((x->pred_mv_sad[ref] >> 3) > x->pred_mv_sad[i]) { x->pred_mv[ref].row = 0; x->pred_mv[ref].col = 0; tmp_mv->as_int = INVALID_MV; if (scaled_ref_frame) { int i; for (i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[0] = backup_yv12[i]; } return; } } } mvp_full = pred_mv[x->mv_best_ref_index[ref]]; mvp_full.col >>= 3; mvp_full.row >>= 3; bestsme = vp9_full_pixel_search(cpi, x, bsize, &mvp_full, step_param, sadpb, cond_sad_list(cpi, sad_list), &ref_mv, &tmp_mv->as_mv, INT_MAX, 1); x->mv_col_min = tmp_col_min; x->mv_col_max = tmp_col_max; x->mv_row_min = tmp_row_min; x->mv_row_max = tmp_row_max; if (bestsme < INT_MAX) { int dis; /* TODO: use dis in distortion calculation later. */ cpi->find_fractional_mv_step(x, &tmp_mv->as_mv, &ref_mv, cm->allow_high_precision_mv, x->errorperbit, &cpi->fn_ptr[bsize], cpi->sf.mv.subpel_force_stop, cpi->sf.mv.subpel_iters_per_step, cond_sad_list(cpi, sad_list), x->nmvjointcost, x->mvcost, &dis, &x->pred_sse[ref], NULL, 0, 0); } *rate_mv = vp9_mv_bit_cost(&tmp_mv->as_mv, &ref_mv, x->nmvjointcost, x->mvcost, MV_COST_WEIGHT); if (cpi->sf.adaptive_motion_search) x->pred_mv[ref] = tmp_mv->as_mv; if (scaled_ref_frame) { int i; for (i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[0] = backup_yv12[i]; } } static void joint_motion_search(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, int_mv *frame_mv, int mi_row, int mi_col, int_mv single_newmv[MAX_REF_FRAMES], int *rate_mv) { const int pw = 4 * num_4x4_blocks_wide_lookup[bsize]; const int ph = 4 * num_4x4_blocks_high_lookup[bsize]; MACROBLOCKD *xd = &x->e_mbd; MB_MODE_INFO *mbmi = &xd->mi[0].src_mi->mbmi; const int refs[2] = { mbmi->ref_frame[0], mbmi->ref_frame[1] < 0 ? 0 : mbmi->ref_frame[1] }; int_mv ref_mv[2]; int ite, ref; // Prediction buffer from second frame. uint8_t *second_pred = vpx_memalign(16, pw * ph * sizeof(uint8_t)); const InterpKernel *kernel = vp9_get_interp_kernel(mbmi->interp_filter); // Do joint motion search in compound mode to get more accurate mv. struct buf_2d backup_yv12[2][MAX_MB_PLANE]; struct buf_2d scaled_first_yv12 = xd->plane[0].pre[0]; int last_besterr[2] = {INT_MAX, INT_MAX}; const YV12_BUFFER_CONFIG *const scaled_ref_frame[2] = { vp9_get_scaled_ref_frame(cpi, mbmi->ref_frame[0]), vp9_get_scaled_ref_frame(cpi, mbmi->ref_frame[1]) }; for (ref = 0; ref < 2; ++ref) { ref_mv[ref] = mbmi->ref_mvs[refs[ref]][0]; if (scaled_ref_frame[ref]) { int i; // Swap out the reference frame for a version that's been scaled to // match the resolution of the current frame, allowing the existing // motion search code to be used without additional modifications. for (i = 0; i < MAX_MB_PLANE; i++) backup_yv12[ref][i] = xd->plane[i].pre[ref]; vp9_setup_pre_planes(xd, ref, scaled_ref_frame[ref], mi_row, mi_col, NULL); } frame_mv[refs[ref]].as_int = single_newmv[refs[ref]].as_int; } // Allow joint search multiple times iteratively for each ref frame // and break out the search loop if it couldn't find better mv. for (ite = 0; ite < 4; ite++) { struct buf_2d ref_yv12[2]; int bestsme = INT_MAX; int sadpb = x->sadperbit16; MV tmp_mv; int search_range = 3; int tmp_col_min = x->mv_col_min; int tmp_col_max = x->mv_col_max; int tmp_row_min = x->mv_row_min; int tmp_row_max = x->mv_row_max; int id = ite % 2; // Initialized here because of compiler problem in Visual Studio. ref_yv12[0] = xd->plane[0].pre[0]; ref_yv12[1] = xd->plane[0].pre[1]; // Get pred block from second frame. vp9_build_inter_predictor(ref_yv12[!id].buf, ref_yv12[!id].stride, second_pred, pw, &frame_mv[refs[!id]].as_mv, &xd->block_refs[!id]->sf, pw, ph, 0, kernel, MV_PRECISION_Q3, mi_col * MI_SIZE, mi_row * MI_SIZE); // Compound motion search on first ref frame. if (id) xd->plane[0].pre[0] = ref_yv12[id]; vp9_set_mv_search_range(x, &ref_mv[id].as_mv); // Use mv result from single mode as mvp. tmp_mv = frame_mv[refs[id]].as_mv; tmp_mv.col >>= 3; tmp_mv.row >>= 3; // Small-range full-pixel motion search bestsme = vp9_refining_search_8p_c(x, &tmp_mv, sadpb, search_range, &cpi->fn_ptr[bsize], &ref_mv[id].as_mv, second_pred); if (bestsme < INT_MAX) bestsme = vp9_get_mvpred_av_var(x, &tmp_mv, &ref_mv[id].as_mv, second_pred, &cpi->fn_ptr[bsize], 1); x->mv_col_min = tmp_col_min; x->mv_col_max = tmp_col_max; x->mv_row_min = tmp_row_min; x->mv_row_max = tmp_row_max; if (bestsme < INT_MAX) { int dis; /* TODO: use dis in distortion calculation later. */ unsigned int sse; bestsme = cpi->find_fractional_mv_step( x, &tmp_mv, &ref_mv[id].as_mv, cpi->common.allow_high_precision_mv, x->errorperbit, &cpi->fn_ptr[bsize], 0, cpi->sf.mv.subpel_iters_per_step, NULL, x->nmvjointcost, x->mvcost, &dis, &sse, second_pred, pw, ph); } if (id) xd->plane[0].pre[0] = scaled_first_yv12; if (bestsme < last_besterr[id]) { frame_mv[refs[id]].as_mv = tmp_mv; last_besterr[id] = bestsme; } else { break; } } *rate_mv = 0; for (ref = 0; ref < 2; ++ref) { if (scaled_ref_frame[ref]) { // restore the predictor int i; for (i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[ref] = backup_yv12[ref][i]; } *rate_mv += vp9_mv_bit_cost(&frame_mv[refs[ref]].as_mv, &mbmi->ref_mvs[refs[ref]][0].as_mv, x->nmvjointcost, x->mvcost, MV_COST_WEIGHT); } vpx_free(second_pred); } static INLINE void restore_dst_buf(MACROBLOCKD *xd, uint8_t *orig_dst[MAX_MB_PLANE], int orig_dst_stride[MAX_MB_PLANE]) { int i; for (i = 0; i < MAX_MB_PLANE; i++) { xd->plane[i].dst.buf = orig_dst[i]; xd->plane[i].dst.stride = orig_dst_stride[i]; } } static void rd_encode_breakout_test(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, int *rate2, int64_t *distortion, int64_t *distortion_uv, int *disable_skip) { VP9_COMMON *cm = &cpi->common; MACROBLOCKD *xd = &x->e_mbd; const BLOCK_SIZE y_size = get_plane_block_size(bsize, &xd->plane[0]); const BLOCK_SIZE uv_size = get_plane_block_size(bsize, &xd->plane[1]); unsigned int var, sse; // Skipping threshold for ac. unsigned int thresh_ac; // Skipping threshold for dc unsigned int thresh_dc; var = cpi->fn_ptr[y_size].vf(x->plane[0].src.buf, x->plane[0].src.stride, xd->plane[0].dst.buf, xd->plane[0].dst.stride, &sse); if (x->encode_breakout > 0) { // Set a maximum for threshold to avoid big PSNR loss in low bitrate // case. Use extreme low threshold for static frames to limit skipping. const unsigned int max_thresh = (cpi->allow_encode_breakout == ENCODE_BREAKOUT_LIMITED) ? 128 : 36000; // The encode_breakout input const unsigned int min_thresh = MIN(((unsigned int)x->encode_breakout << 4), max_thresh); // Calculate threshold according to dequant value. thresh_ac = (xd->plane[0].dequant[1] * xd->plane[0].dequant[1]) / 9; thresh_ac = clamp(thresh_ac, min_thresh, max_thresh); // Adjust threshold according to partition size. thresh_ac >>= 8 - (b_width_log2(bsize) + b_height_log2(bsize)); thresh_dc = (xd->plane[0].dequant[0] * xd->plane[0].dequant[0] >> 6); } else { thresh_ac = 0; thresh_dc = 0; } // Y skipping condition checking if (sse < thresh_ac || sse == 0) { // dc skipping checking if ((sse - var) < thresh_dc || sse == var) { unsigned int sse_u, sse_v; unsigned int var_u, var_v; var_u = cpi->fn_ptr[uv_size].vf(x->plane[1].src.buf, x->plane[1].src.stride, xd->plane[1].dst.buf, xd->plane[1].dst.stride, &sse_u); // U skipping condition checking if ((sse_u * 4 < thresh_ac || sse_u == 0) && (sse_u - var_u < thresh_dc || sse_u == var_u)) { var_v = cpi->fn_ptr[uv_size].vf(x->plane[2].src.buf, x->plane[2].src.stride, xd->plane[2].dst.buf, xd->plane[2].dst.stride, &sse_v); // V skipping condition checking if ((sse_v * 4 < thresh_ac || sse_v == 0) && (sse_v - var_v < thresh_dc || sse_v == var_v)) { x->skip = 1; // The cost of skip bit needs to be added. *rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1); // Scaling factor for SSE from spatial domain to frequency domain // is 16. Adjust distortion accordingly. *distortion_uv = (sse_u + sse_v) << 4; *distortion = (sse << 4) + *distortion_uv; *disable_skip = 1; } } } } } static int64_t handle_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, int64_t txfm_cache[], int *rate2, int64_t *distortion, int *skippable, int *rate_y, int64_t *distortion_y, int *rate_uv, int64_t *distortion_uv, int *disable_skip, int_mv (*mode_mv)[MAX_REF_FRAMES], int mi_row, int mi_col, int_mv single_newmv[MAX_REF_FRAMES], INTERP_FILTER (*single_filter)[MAX_REF_FRAMES], int (*single_skippable)[MAX_REF_FRAMES], int64_t *psse, const int64_t ref_best_rd) { VP9_COMMON *cm = &cpi->common; RD_OPT *rd_opt = &cpi->rd; MACROBLOCKD *xd = &x->e_mbd; MB_MODE_INFO *mbmi = &xd->mi[0].src_mi->mbmi; const int is_comp_pred = has_second_ref(mbmi); const int this_mode = mbmi->mode; int_mv *frame_mv = mode_mv[this_mode]; int i; int refs[2] = { mbmi->ref_frame[0], (mbmi->ref_frame[1] < 0 ? 0 : mbmi->ref_frame[1]) }; int_mv cur_mv[2]; int64_t this_rd = 0; DECLARE_ALIGNED_ARRAY(16, uint8_t, tmp_buf, MAX_MB_PLANE * 64 * 64); int pred_exists = 0; int intpel_mv; int64_t rd, tmp_rd, best_rd = INT64_MAX; int best_needs_copy = 0; uint8_t *orig_dst[MAX_MB_PLANE]; int orig_dst_stride[MAX_MB_PLANE]; int rs = 0; INTERP_FILTER best_filter = SWITCHABLE; uint8_t skip_txfm[MAX_MB_PLANE << 2] = {0}; int64_t bsse[MAX_MB_PLANE << 2] = {0}; int bsl = mi_width_log2_lookup[bsize]; int pred_filter_search = cpi->sf.cb_pred_filter_search ? (((mi_row + mi_col) >> bsl) + get_chessboard_index(cm->current_video_frame)) & 0x1 : 0; if (pred_filter_search) { INTERP_FILTER af = SWITCHABLE, lf = SWITCHABLE; if (xd->up_available) af = xd->mi[-xd->mi_stride].src_mi->mbmi.interp_filter; if (xd->left_available) lf = xd->mi[-1].src_mi->mbmi.interp_filter; if ((this_mode != NEWMV) || (af == lf)) best_filter = af; } if (is_comp_pred) { if (frame_mv[refs[0]].as_int == INVALID_MV || frame_mv[refs[1]].as_int == INVALID_MV) return INT64_MAX; if (cpi->sf.adaptive_mode_search) { if (single_filter[this_mode][refs[0]] == single_filter[this_mode][refs[1]]) best_filter = single_filter[this_mode][refs[0]]; } } if (this_mode == NEWMV) { int rate_mv; if (is_comp_pred) { // Initialize mv using single prediction mode result. frame_mv[refs[0]].as_int = single_newmv[refs[0]].as_int; frame_mv[refs[1]].as_int = single_newmv[refs[1]].as_int; if (cpi->sf.comp_inter_joint_search_thresh <= bsize) { joint_motion_search(cpi, x, bsize, frame_mv, mi_row, mi_col, single_newmv, &rate_mv); } else { rate_mv = vp9_mv_bit_cost(&frame_mv[refs[0]].as_mv, &mbmi->ref_mvs[refs[0]][0].as_mv, x->nmvjointcost, x->mvcost, MV_COST_WEIGHT); rate_mv += vp9_mv_bit_cost(&frame_mv[refs[1]].as_mv, &mbmi->ref_mvs[refs[1]][0].as_mv, x->nmvjointcost, x->mvcost, MV_COST_WEIGHT); } *rate2 += rate_mv; } else { int_mv tmp_mv; single_motion_search(cpi, x, bsize, mi_row, mi_col, &tmp_mv, &rate_mv); if (tmp_mv.as_int == INVALID_MV) return INT64_MAX; *rate2 += rate_mv; frame_mv[refs[0]].as_int = xd->mi[0].src_mi->bmi[0].as_mv[0].as_int = tmp_mv.as_int; single_newmv[refs[0]].as_int = tmp_mv.as_int; } } for (i = 0; i < is_comp_pred + 1; ++i) { cur_mv[i] = frame_mv[refs[i]]; // Clip "next_nearest" so that it does not extend to far out of image if (this_mode != NEWMV) clamp_mv2(&cur_mv[i].as_mv, xd); if (mv_check_bounds(x, &cur_mv[i].as_mv)) return INT64_MAX; mbmi->mv[i].as_int = cur_mv[i].as_int; } // do first prediction into the destination buffer. Do the next // prediction into a temporary buffer. Then keep track of which one // of these currently holds the best predictor, and use the other // one for future predictions. In the end, copy from tmp_buf to // dst if necessary. for (i = 0; i < MAX_MB_PLANE; i++) { orig_dst[i] = xd->plane[i].dst.buf; orig_dst_stride[i] = xd->plane[i].dst.stride; } /* We don't include the cost of the second reference here, because there * are only three options: Last/Golden, ARF/Last or Golden/ARF, or in other * words if you present them in that order, the second one is always known * if the first is known */ *rate2 += cost_mv_ref(cpi, this_mode, mbmi->mode_context[refs[0]]); if (RDCOST(x->rdmult, x->rddiv, *rate2, 0) > ref_best_rd && mbmi->mode != NEARESTMV) return INT64_MAX; pred_exists = 0; // Are all MVs integer pel for Y and UV intpel_mv = !mv_has_subpel(&mbmi->mv[0].as_mv); if (is_comp_pred) intpel_mv &= !mv_has_subpel(&mbmi->mv[1].as_mv); // Search for best switchable filter by checking the variance of // pred error irrespective of whether the filter will be used rd_opt->mask_filter = 0; for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i) rd_opt->filter_cache[i] = INT64_MAX; if (cm->interp_filter != BILINEAR) { if (x->source_variance < cpi->sf.disable_filter_search_var_thresh) { best_filter = EIGHTTAP; } else if (best_filter == SWITCHABLE) { int newbest; int tmp_rate_sum = 0; int64_t tmp_dist_sum = 0; for (i = 0; i < SWITCHABLE_FILTERS; ++i) { int j; int64_t rs_rd; mbmi->interp_filter = i; rs = vp9_get_switchable_rate(cpi); rs_rd = RDCOST(x->rdmult, x->rddiv, rs, 0); if (i > 0 && intpel_mv) { rd = RDCOST(x->rdmult, x->rddiv, tmp_rate_sum, tmp_dist_sum); rd_opt->filter_cache[i] = rd; rd_opt->filter_cache[SWITCHABLE_FILTERS] = MIN(rd_opt->filter_cache[SWITCHABLE_FILTERS], rd + rs_rd); if (cm->interp_filter == SWITCHABLE) rd += rs_rd; rd_opt->mask_filter = MAX(rd_opt->mask_filter, rd); } else { int rate_sum = 0; int64_t dist_sum = 0; if (i > 0 && cpi->sf.adaptive_interp_filter_search && (cpi->sf.interp_filter_search_mask & (1 << i))) { rate_sum = INT_MAX; dist_sum = INT64_MAX; continue; } if ((cm->interp_filter == SWITCHABLE && (!i || best_needs_copy)) || (cm->interp_filter != SWITCHABLE && (cm->interp_filter == mbmi->interp_filter || (i == 0 && intpel_mv)))) { restore_dst_buf(xd, orig_dst, orig_dst_stride); } else { for (j = 0; j < MAX_MB_PLANE; j++) { xd->plane[j].dst.buf = tmp_buf + j * 64 * 64; xd->plane[j].dst.stride = 64; } } vp9_build_inter_predictors_sb(xd, mi_row, mi_col, bsize); model_rd_for_sb(cpi, bsize, x, xd, &rate_sum, &dist_sum); rd = RDCOST(x->rdmult, x->rddiv, rate_sum, dist_sum); rd_opt->filter_cache[i] = rd; rd_opt->filter_cache[SWITCHABLE_FILTERS] = MIN(rd_opt->filter_cache[SWITCHABLE_FILTERS], rd + rs_rd); if (cm->interp_filter == SWITCHABLE) rd += rs_rd; rd_opt->mask_filter = MAX(rd_opt->mask_filter, rd); if (i == 0 && intpel_mv) { tmp_rate_sum = rate_sum; tmp_dist_sum = dist_sum; } } if (i == 0 && cpi->sf.use_rd_breakout && ref_best_rd < INT64_MAX) { if (rd / 2 > ref_best_rd) { restore_dst_buf(xd, orig_dst, orig_dst_stride); return INT64_MAX; } } newbest = i == 0 || rd < best_rd; if (newbest) { best_rd = rd; best_filter = mbmi->interp_filter; if (cm->interp_filter == SWITCHABLE && i && !intpel_mv) best_needs_copy = !best_needs_copy; vpx_memcpy(skip_txfm, x->skip_txfm, sizeof(skip_txfm)); vpx_memcpy(bsse, x->bsse, sizeof(bsse)); } if ((cm->interp_filter == SWITCHABLE && newbest) || (cm->interp_filter != SWITCHABLE && cm->interp_filter == mbmi->interp_filter)) { pred_exists = 1; tmp_rd = best_rd; } } restore_dst_buf(xd, orig_dst, orig_dst_stride); } } // Set the appropriate filter mbmi->interp_filter = cm->interp_filter != SWITCHABLE ? cm->interp_filter : best_filter; rs = cm->interp_filter == SWITCHABLE ? vp9_get_switchable_rate(cpi) : 0; if (pred_exists) { if (best_needs_copy) { // again temporarily set the buffers to local memory to prevent a memcpy for (i = 0; i < MAX_MB_PLANE; i++) { xd->plane[i].dst.buf = tmp_buf + i * 64 * 64; xd->plane[i].dst.stride = 64; } } rd = tmp_rd + RDCOST(x->rdmult, x->rddiv, rs, 0); } else { int tmp_rate; int64_t tmp_dist; // Handles the special case when a filter that is not in the // switchable list (ex. bilinear) is indicated at the frame level, or // skip condition holds. vp9_build_inter_predictors_sb(xd, mi_row, mi_col, bsize); model_rd_for_sb(cpi, bsize, x, xd, &tmp_rate, &tmp_dist); rd = RDCOST(x->rdmult, x->rddiv, rs + tmp_rate, tmp_dist); vpx_memcpy(skip_txfm, x->skip_txfm, sizeof(skip_txfm)); vpx_memcpy(bsse, x->bsse, sizeof(bsse)); } if (!is_comp_pred) single_filter[this_mode][refs[0]] = mbmi->interp_filter; if (cpi->sf.adaptive_mode_search) if (is_comp_pred) if (single_skippable[this_mode][refs[0]] && single_skippable[this_mode][refs[1]]) vpx_memset(skip_txfm, 1, sizeof(skip_txfm)); if (cpi->sf.use_rd_breakout && ref_best_rd < INT64_MAX) { // if current pred_error modeled rd is substantially more than the best // so far, do not bother doing full rd if (rd / 2 > ref_best_rd) { restore_dst_buf(xd, orig_dst, orig_dst_stride); return INT64_MAX; } } if (cm->interp_filter == SWITCHABLE) *rate2 += rs; if (!is_comp_pred) { if (cpi->allow_encode_breakout) rd_encode_breakout_test(cpi, x, bsize, rate2, distortion, distortion_uv, disable_skip); } vpx_memcpy(x->skip_txfm, skip_txfm, sizeof(skip_txfm)); vpx_memcpy(x->bsse, bsse, sizeof(bsse)); if (!x->skip) { int skippable_y, skippable_uv; int64_t sseuv = INT64_MAX; int64_t rdcosty = INT64_MAX; // Y cost and distortion vp9_subtract_plane(x, bsize, 0); super_block_yrd(cpi, x, rate_y, distortion_y, &skippable_y, psse, bsize, txfm_cache, ref_best_rd); if (*rate_y == INT_MAX) { *rate2 = INT_MAX; *distortion = INT64_MAX; restore_dst_buf(xd, orig_dst, orig_dst_stride); return INT64_MAX; } *rate2 += *rate_y; *distortion += *distortion_y; rdcosty = RDCOST(x->rdmult, x->rddiv, *rate2, *distortion); rdcosty = MIN(rdcosty, RDCOST(x->rdmult, x->rddiv, 0, *psse)); super_block_uvrd(cpi, x, rate_uv, distortion_uv, &skippable_uv, &sseuv, bsize, ref_best_rd - rdcosty); if (*rate_uv == INT_MAX) { *rate2 = INT_MAX; *distortion = INT64_MAX; restore_dst_buf(xd, orig_dst, orig_dst_stride); return INT64_MAX; } *psse += sseuv; *rate2 += *rate_uv; *distortion += *distortion_uv; *skippable = skippable_y && skippable_uv; } if (!is_comp_pred) single_skippable[this_mode][refs[0]] = *skippable; restore_dst_buf(xd, orig_dst, orig_dst_stride); return this_rd; // if 0, this will be re-calculated by caller } void vp9_rd_pick_intra_mode_sb(VP9_COMP *cpi, MACROBLOCK *x, int *returnrate, int64_t *returndist, BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx, int64_t best_rd) { VP9_COMMON *const cm = &cpi->common; MACROBLOCKD *const xd = &x->e_mbd; struct macroblockd_plane *const pd = xd->plane; int rate_y = 0, rate_uv = 0, rate_y_tokenonly = 0, rate_uv_tokenonly = 0; int y_skip = 0, uv_skip = 0; int64_t dist_y = 0, dist_uv = 0, tx_cache[TX_MODES] = { 0 }; TX_SIZE max_uv_tx_size; x->skip_encode = 0; ctx->skip = 0; xd->mi[0].src_mi->mbmi.ref_frame[0] = INTRA_FRAME; if (bsize >= BLOCK_8X8) { if (rd_pick_intra_sby_mode(cpi, x, &rate_y, &rate_y_tokenonly, &dist_y, &y_skip, bsize, tx_cache, best_rd) >= best_rd) { *returnrate = INT_MAX; return; } } else { y_skip = 0; if (rd_pick_intra_sub_8x8_y_mode(cpi, x, &rate_y, &rate_y_tokenonly, &dist_y, best_rd) >= best_rd) { *returnrate = INT_MAX; return; } } max_uv_tx_size = get_uv_tx_size_impl(xd->mi[0].src_mi->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) { *returnrate = rate_y + rate_uv - rate_y_tokenonly - rate_uv_tokenonly + vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1); *returndist = dist_y + dist_uv; vp9_zero(ctx->tx_rd_diff); } else { int i; *returnrate = rate_y + rate_uv + vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0); *returndist = dist_y + dist_uv; if (cpi->sf.tx_size_search_method == USE_FULL_RD) for (i = 0; i < TX_MODES; i++) { if (tx_cache[i] < INT64_MAX && tx_cache[cm->tx_mode] < INT64_MAX) ctx->tx_rd_diff[i] = tx_cache[i] - tx_cache[cm->tx_mode]; else ctx->tx_rd_diff[i] = 0; } } ctx->mic = *xd->mi[0].src_mi; } // Updating rd_thresh_freq_fact[] here means that the different // partition/block sizes are handled independently based on the best // choice for the current partition. It may well be better to keep a scaled // best rd so far value and update rd_thresh_freq_fact based on the mode/size // combination that wins out. static void update_rd_thresh_fact(VP9_COMP *cpi, int bsize, int best_mode_index) { if (cpi->sf.adaptive_rd_thresh > 0) { const int top_mode = bsize < BLOCK_8X8 ? MAX_REFS : MAX_MODES; int mode; for (mode = 0; mode < top_mode; ++mode) { int *const fact = &cpi->rd.thresh_freq_fact[bsize][mode]; if (mode == best_mode_index) { *fact -= (*fact >> 3); } else { *fact = MIN(*fact + RD_THRESH_INC, cpi->sf.adaptive_rd_thresh * RD_THRESH_MAX_FACT); } } } } int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x, const TileInfo *const tile, int mi_row, int mi_col, int *returnrate, int64_t *returndistortion, BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx, int64_t best_rd_so_far) { VP9_COMMON *const cm = &cpi->common; RD_OPT *const rd_opt = &cpi->rd; MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mi[0].src_mi->mbmi; const struct segmentation *const seg = &cm->seg; struct macroblockd_plane *const pd = xd->plane; PREDICTION_MODE this_mode; MV_REFERENCE_FRAME ref_frame, second_ref_frame; unsigned char segment_id = mbmi->segment_id; int comp_pred, i, k; int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES]; struct buf_2d yv12_mb[4][MAX_MB_PLANE]; int_mv single_newmv[MAX_REF_FRAMES] = { { 0 } }; INTERP_FILTER single_inter_filter[MB_MODE_COUNT][MAX_REF_FRAMES]; int single_skippable[MB_MODE_COUNT][MAX_REF_FRAMES]; static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG, VP9_ALT_FLAG }; int64_t best_rd = best_rd_so_far; int64_t best_tx_rd[TX_MODES]; int64_t best_tx_diff[TX_MODES]; int64_t best_pred_diff[REFERENCE_MODES]; int64_t best_pred_rd[REFERENCE_MODES]; int64_t best_filter_rd[SWITCHABLE_FILTER_CONTEXTS]; int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS]; MB_MODE_INFO best_mbmode; int best_mode_skippable = 0; int mode_index, best_mode_index = -1; unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES]; vp9_prob comp_mode_p; int64_t best_intra_rd = INT64_MAX; 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 = 20 * vp9_dc_quant(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 = cpi->sf.mode_skip_start + 1; const int *const rd_threshes = rd_opt->threshes[segment_id][bsize]; const int *const rd_thresh_freq_fact = rd_opt->thresh_freq_fact[bsize]; const int mode_search_skip_flags = cpi->sf.mode_search_skip_flags; vp9_zero(best_mbmode); x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH; estimate_ref_frame_costs(cm, xd, segment_id, ref_costs_single, ref_costs_comp, &comp_mode_p); for (i = 0; i < REFERENCE_MODES; ++i) best_pred_rd[i] = INT64_MAX; for (i = 0; i < TX_MODES; i++) best_tx_rd[i] = INT64_MAX; for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) best_filter_rd[i] = INT64_MAX; for (i = 0; i < TX_SIZES; i++) rate_uv_intra[i] = INT_MAX; for (i = 0; i < MAX_REF_FRAMES; ++i) x->pred_sse[i] = INT_MAX; for (i = 0; i < MB_MODE_COUNT; ++i) { for (k = 0; k < MAX_REF_FRAMES; ++k) { single_inter_filter[i][k] = SWITCHABLE; single_skippable[i][k] = 0; } } *returnrate = INT_MAX; for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) { x->pred_mv_sad[ref_frame] = INT_MAX; if (cpi->ref_frame_flags & flag_list[ref_frame]) { setup_buffer_inter(cpi, x, tile, ref_frame, bsize, mi_row, mi_col, frame_mv[NEARESTMV], frame_mv[NEARMV], yv12_mb); } frame_mv[NEWMV][ref_frame].as_int = INVALID_MV; frame_mv[ZEROMV][ref_frame].as_int = 0; } for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) { 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 (cpi->sf.reference_masking) { for (i = LAST_FRAME; i <= ALTREF_FRAME; ++i) { // Skip fixed mv modes for poor references if ((x->pred_mv_sad[ref_frame] >> 2) > x->pred_mv_sad[i]) { mode_skip_mask[ref_frame] |= 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 (cpi->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 (bsize > cpi->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] |= ~(cpi->sf.intra_y_mode_mask[max_txsize_lookup[bsize]]); for (mode_index = 0; mode_index < MAX_MODES; ++mode_index) { int mode_excluded = 0; int64_t this_rd = INT64_MAX; int disable_skip = 0; int compmode_cost = 0; int rate2 = 0, rate_y = 0, rate_uv = 0; int64_t distortion2 = 0, distortion_y = 0, distortion_uv = 0; int skippable = 0; int64_t tx_cache[TX_MODES]; int i; int this_skip2 = 0; int64_t total_sse = INT64_MAX; int early_term = 0; this_mode = vp9_mode_order[mode_index].mode; ref_frame = vp9_mode_order[mode_index].ref_frame[0]; second_ref_frame = vp9_mode_order[mode_index].ref_frame[1]; // Look at the reference frame of the best mode so far and set the // skip mask to look at a subset of the remaining modes. if (mode_index == mode_skip_start && best_mode_index >= 0) { switch (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 (rd_less_than_thresh(best_rd, rd_threshes[mode_index], rd_thresh_freq_fact[mode_index])) continue; if (cpi->sf.motion_field_mode_search) { const int mi_width = MIN(num_8x8_blocks_wide_lookup[bsize], tile->mi_col_end - mi_col); const int mi_height = MIN(num_8x8_blocks_high_lookup[bsize], tile->mi_row_end - mi_row); const int bsl = mi_width_log2(bsize); int cb_partition_search_ctrl = (((mi_row + mi_col) >> bsl) + get_chessboard_index(cm->current_video_frame)) & 0x1; MB_MODE_INFO *ref_mbmi; int const_motion = 1; int skip_ref_frame = !cb_partition_search_ctrl; MV_REFERENCE_FRAME rf = NONE; int_mv ref_mv; ref_mv.as_int = INVALID_MV; if ((mi_row - 1) >= tile->mi_row_start) { ref_mv = xd->mi[-xd->mi_stride].src_mi->mbmi.mv[0]; rf = xd->mi[-xd->mi_stride].src_mi->mbmi.ref_frame[0]; for (i = 0; i < mi_width; ++i) { ref_mbmi = &xd->mi[-xd->mi_stride + i].src_mi->mbmi; const_motion &= (ref_mv.as_int == ref_mbmi->mv[0].as_int) && (ref_frame == ref_mbmi->ref_frame[0]); skip_ref_frame &= (rf == ref_mbmi->ref_frame[0]); } } if ((mi_col - 1) >= tile->mi_col_start) { if (ref_mv.as_int == INVALID_MV) ref_mv = xd->mi[-1].src_mi->mbmi.mv[0]; if (rf == NONE) rf = xd->mi[-1].src_mi->mbmi.ref_frame[0]; for (i = 0; i < mi_height; ++i) { ref_mbmi = &xd->mi[i * xd->mi_stride - 1].src_mi->mbmi; const_motion &= (ref_mv.as_int == ref_mbmi->mv[0].as_int) && (ref_frame == ref_mbmi->ref_frame[0]); skip_ref_frame &= (rf == ref_mbmi->ref_frame[0]); } } if (skip_ref_frame && this_mode != NEARESTMV && this_mode != NEWMV) if (rf > INTRA_FRAME) if (ref_frame != rf) continue; if (const_motion) if (this_mode == NEARMV || this_mode == ZEROMV) continue; } comp_pred = second_ref_frame > INTRA_FRAME; if (comp_pred) { if (!cm->allow_comp_inter_inter) continue; // 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 (cpi->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; super_block_yrd(cpi, x, &rate_y, &distortion_y, &skippable, NULL, bsize, tx_cache, best_rd); if (rate_y == INT_MAX) continue; uv_tx = get_uv_tx_size_impl(mbmi->tx_size, bsize, pd[1].subsampling_x, pd[1].subsampling_y); if (rate_uv_intra[uv_tx] == INT_MAX) { choose_intra_uv_mode(cpi, ctx, bsize, uv_tx, &rate_uv_intra[uv_tx], &rate_uv_tokenonly[uv_tx], &dist_uv[uv_tx], &skip_uv[uv_tx], &mode_uv[uv_tx]); } rate_uv = rate_uv_tokenonly[uv_tx]; distortion_uv = dist_uv[uv_tx]; skippable = skippable && skip_uv[uv_tx]; mbmi->uv_mode = mode_uv[uv_tx]; rate2 = rate_y + cpi->mbmode_cost[mbmi->mode] + rate_uv_intra[uv_tx]; if (this_mode != DC_PRED && this_mode != TM_PRED) rate2 += intra_cost_penalty; distortion2 = distortion_y + distortion_uv; } else { this_rd = handle_inter_mode(cpi, x, bsize, tx_cache, &rate2, &distortion2, &skippable, &rate_y, &distortion_y, &rate_uv, &distortion_uv, &disable_skip, frame_mv, mi_row, mi_col, single_newmv, single_inter_filter, single_skippable, &total_sse, best_rd); if (this_rd == INT64_MAX) continue; compmode_cost = vp9_cost_bit(comp_mode_p, comp_pred); if (cm->reference_mode == REFERENCE_MODE_SELECT) rate2 += compmode_cost; } // Estimate the reference frame signaling cost and add it // to the rolling cost variable. if (comp_pred) { rate2 += ref_costs_comp[ref_frame]; } else { rate2 += ref_costs_single[ref_frame]; } if (!disable_skip) { if (skippable) { // 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); } 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]; } *returnrate = rate2; *returndistortion = distortion2; best_rd = this_rd; best_mbmode = *mbmi; best_skip2 = this_skip2; best_mode_skippable = skippable; if (!x->select_tx_size) swap_block_ptr(x, ctx, 1, 0, 0, max_plane); vpx_memcpy(ctx->zcoeff_blk, x->zcoeff_blk[mbmi->tx_size], sizeof(uint8_t) * ctx->num_4x4_blk); // TODO(debargha): enhance this test with a better distortion prediction // based on qp, activity mask and history if ((mode_search_skip_flags & FLAG_EARLY_TERMINATE) && (mode_index > MIN_EARLY_TERM_INDEX)) { const int qstep = xd->plane[0].dequant[1]; // TODO(debargha): Enhance this by specializing for each mode_index int scale = 4; if (x->source_variance < UINT_MAX) { const int var_adjust = (x->source_variance < 16); scale -= var_adjust; } if (ref_frame > INTRA_FRAME && distortion2 * scale < qstep * qstep) { early_term = 1; } } } } /* keep record of best compound/single-only prediction */ if (!disable_skip && ref_frame != INTRA_FRAME) { int64_t single_rd, hybrid_rd, single_rate, hybrid_rate; if (cm->reference_mode == REFERENCE_MODE_SELECT) { single_rate = rate2 - compmode_cost; hybrid_rate = rate2; } else { single_rate = rate2; hybrid_rate = rate2 + compmode_cost; } single_rd = RDCOST(x->rdmult, x->rddiv, single_rate, distortion2); hybrid_rd = RDCOST(x->rdmult, x->rddiv, hybrid_rate, distortion2); if (!comp_pred) { if (single_rd < best_pred_rd[SINGLE_REFERENCE]) best_pred_rd[SINGLE_REFERENCE] = single_rd; } else { if (single_rd < best_pred_rd[COMPOUND_REFERENCE]) best_pred_rd[COMPOUND_REFERENCE] = single_rd; } if (hybrid_rd < best_pred_rd[REFERENCE_MODE_SELECT]) best_pred_rd[REFERENCE_MODE_SELECT] = hybrid_rd; /* keep record of best filter type */ if (!mode_excluded && cm->interp_filter != BILINEAR) { int64_t ref = rd_opt->filter_cache[cm->interp_filter == SWITCHABLE ? SWITCHABLE_FILTERS : cm->interp_filter]; for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) { int64_t adj_rd; if (ref == INT64_MAX) adj_rd = 0; else if (rd_opt->filter_cache[i] == INT64_MAX) // when early termination is triggered, the encoder does not have // access to the rate-distortion cost. it only knows that the cost // should be above the maximum valid value. hence it takes the known // maximum plus an arbitrary constant as the rate-distortion cost. adj_rd = rd_opt->mask_filter - ref + 10; else adj_rd = rd_opt->filter_cache[i] - ref; adj_rd += this_rd; best_filter_rd[i] = MIN(best_filter_rd[i], adj_rd); } } } /* keep record of best txfm size */ if (bsize < BLOCK_32X32) { if (bsize < BLOCK_16X16) tx_cache[ALLOW_16X16] = tx_cache[ALLOW_8X8]; tx_cache[ALLOW_32X32] = tx_cache[ALLOW_16X16]; } if (!mode_excluded && this_rd != INT64_MAX) { for (i = 0; i < TX_MODES && tx_cache[i] < INT64_MAX; i++) { int64_t adj_rd = INT64_MAX; adj_rd = this_rd + tx_cache[i] - tx_cache[cm->tx_mode]; if (adj_rd < best_tx_rd[i]) best_tx_rd[i] = adj_rd; } } if (early_term) break; if (x->skip && !comp_pred) break; } // The inter modes' rate costs are not calculated precisely in some cases. // Therefore, sometimes, NEWMV is chosen instead of NEARESTMV, NEARMV, and // ZEROMV. Here, checks are added for those cases, and the mode decisions // are corrected. if (best_mbmode.mode == NEWMV) { const MV_REFERENCE_FRAME refs[2] = {best_mbmode.ref_frame[0], best_mbmode.ref_frame[1]}; int comp_pred_mode = refs[1] > INTRA_FRAME; if (frame_mv[NEARESTMV][refs[0]].as_int == best_mbmode.mv[0].as_int && ((comp_pred_mode && frame_mv[NEARESTMV][refs[1]].as_int == best_mbmode.mv[1].as_int) || !comp_pred_mode)) best_mbmode.mode = NEARESTMV; else if (frame_mv[NEARMV][refs[0]].as_int == best_mbmode.mv[0].as_int && ((comp_pred_mode && frame_mv[NEARMV][refs[1]].as_int == best_mbmode.mv[1].as_int) || !comp_pred_mode)) best_mbmode.mode = NEARMV; else if (best_mbmode.mv[0].as_int == 0 && ((comp_pred_mode && best_mbmode.mv[1].as_int == 0) || !comp_pred_mode)) best_mbmode.mode = ZEROMV; } if (best_mode_index < 0 || best_rd >= best_rd_so_far) return INT64_MAX; // If we used an estimate for the uv intra rd in the loop above... if (cpi->sf.use_uv_intra_rd_estimate) { // Do Intra UV best rd mode selection if best mode choice above was intra. if (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)); update_rd_thresh_fact(cpi, bsize, best_mode_index); // macroblock modes *mbmi = best_mbmode; x->skip |= best_skip2; for (i = 0; i < REFERENCE_MODES; ++i) { if (best_pred_rd[i] == INT64_MAX) best_pred_diff[i] = INT_MIN; else best_pred_diff[i] = best_rd - best_pred_rd[i]; } if (!x->skip) { for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) { if (best_filter_rd[i] == INT64_MAX) best_filter_diff[i] = 0; else best_filter_diff[i] = best_rd - best_filter_rd[i]; } if (cm->interp_filter == SWITCHABLE) assert(best_filter_diff[SWITCHABLE_FILTERS] == 0); for (i = 0; i < TX_MODES; i++) { if (best_tx_rd[i] == INT64_MAX) best_tx_diff[i] = 0; else best_tx_diff[i] = best_rd - best_tx_rd[i]; } } else { vp9_zero(best_filter_diff); vp9_zero(best_tx_diff); } // 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; store_coding_context(x, ctx, best_mode_index, best_pred_diff, best_tx_diff, best_filter_diff, best_mode_skippable); return best_rd; } int64_t vp9_rd_pick_inter_mode_sb_seg_skip(VP9_COMP *cpi, MACROBLOCK *x, int *returnrate, int64_t *returndistortion, BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx, int64_t best_rd_so_far) { VP9_COMMON *const cm = &cpi->common; RD_OPT *const rd_opt = &cpi->rd; MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mi[0].src_mi->mbmi; unsigned char segment_id = mbmi->segment_id; const int comp_pred = 0; int i; int64_t best_tx_diff[TX_MODES]; int64_t best_pred_diff[REFERENCE_MODES]; int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS]; unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES]; vp9_prob comp_mode_p; INTERP_FILTER best_filter = SWITCHABLE; int64_t this_rd = INT64_MAX; int rate2 = 0; const int64_t distortion2 = 0; x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH; estimate_ref_frame_costs(cm, xd, segment_id, ref_costs_single, ref_costs_comp, &comp_mode_p); for (i = 0; i < MAX_REF_FRAMES; ++i) x->pred_sse[i] = INT_MAX; for (i = LAST_FRAME; i < MAX_REF_FRAMES; ++i) x->pred_mv_sad[i] = INT_MAX; *returnrate = INT_MAX; assert(vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)); mbmi->mode = ZEROMV; mbmi->uv_mode = DC_PRED; mbmi->ref_frame[0] = LAST_FRAME; mbmi->ref_frame[1] = NONE; mbmi->mv[0].as_int = 0; x->skip = 1; // Search for best switchable filter by checking the variance of // pred error irrespective of whether the filter will be used rd_opt->mask_filter = 0; for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i) rd_opt->filter_cache[i] = INT64_MAX; if (cm->interp_filter != BILINEAR) { best_filter = EIGHTTAP; if (cm->interp_filter == SWITCHABLE && x->source_variance >= cpi->sf.disable_filter_search_var_thresh) { int rs; int best_rs = INT_MAX; for (i = 0; i < SWITCHABLE_FILTERS; ++i) { mbmi->interp_filter = i; rs = vp9_get_switchable_rate(cpi); if (rs < best_rs) { best_rs = rs; best_filter = mbmi->interp_filter; } } } } // Set the appropriate filter if (cm->interp_filter == SWITCHABLE) { mbmi->interp_filter = best_filter; rate2 += vp9_get_switchable_rate(cpi); } else { mbmi->interp_filter = cm->interp_filter; } if (cm->reference_mode == REFERENCE_MODE_SELECT) rate2 += vp9_cost_bit(comp_mode_p, comp_pred); // Estimate the reference frame signaling cost and add it // to the rolling cost variable. rate2 += ref_costs_single[LAST_FRAME]; this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2); *returnrate = rate2; *returndistortion = distortion2; if (this_rd >= best_rd_so_far) return INT64_MAX; assert((cm->interp_filter == SWITCHABLE) || (cm->interp_filter == mbmi->interp_filter)); update_rd_thresh_fact(cpi, bsize, THR_ZEROMV); vp9_zero(best_pred_diff); vp9_zero(best_filter_diff); vp9_zero(best_tx_diff); if (!x->select_tx_size) swap_block_ptr(x, ctx, 1, 0, 0, MAX_MB_PLANE); store_coding_context(x, ctx, THR_ZEROMV, best_pred_diff, best_tx_diff, best_filter_diff, 0); return this_rd; } int64_t vp9_rd_pick_inter_mode_sub8x8(VP9_COMP *cpi, MACROBLOCK *x, const TileInfo *const tile, int mi_row, int mi_col, int *returnrate, int64_t *returndistortion, BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx, int64_t best_rd_so_far) { VP9_COMMON *const cm = &cpi->common; RD_OPT *const rd_opt = &cpi->rd; MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mi[0].src_mi->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 = 20 * vp9_dc_quant(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 }; x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH; vpx_memset(x->zcoeff_blk[TX_4X4], 0, 4); vp9_zero(best_mbmode); for (i = 0; i < 4; i++) { int j; for (j = 0; j < MAX_REF_FRAMES; j++) seg_mvs[i][j].as_int = INVALID_MV; } estimate_ref_frame_costs(cm, xd, segment_id, ref_costs_single, ref_costs_comp, &comp_mode_p); for (i = 0; i < REFERENCE_MODES; ++i) best_pred_rd[i] = INT64_MAX; for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) best_filter_rd[i] = INT64_MAX; rate_uv_intra = INT_MAX; *returnrate = INT_MAX; for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ref_frame++) { if (cpi->ref_frame_flags & flag_list[ref_frame]) { setup_buffer_inter(cpi, x, tile, ref_frame, bsize, mi_row, mi_col, frame_mv[NEARESTMV], frame_mv[NEARMV], yv12_mb); } 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 && cpi->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], rd_opt->thresh_freq_fact[bsize][ref_index])) continue; comp_pred = second_ref_frame > INTRA_FRAME; if (comp_pred) { if (!cm->allow_comp_inter_inter) continue; if (!(cpi->ref_frame_flags & flag_list[second_ref_frame])) continue; // Do not allow compound prediction if the segment level reference frame // feature is in use as in this case there can only be one reference. if (vp9_segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME)) continue; if ((cpi->sf.mode_search_skip_flags & FLAG_SKIP_COMP_BESTINTRA) && 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, ctx, bsize, TX_4X4, &rate_uv_intra, &rate_uv_tokenonly, &dist_uv, &skip_uv, &mode_uv); } rate2 += rate_uv_intra; rate_uv = rate_uv_tokenonly; distortion2 += dist_uv; distortion_uv = dist_uv; mbmi->uv_mode = mode_uv; } else { int rate; int64_t distortion; int64_t this_rd_thresh; int64_t tmp_rd, tmp_best_rd = INT64_MAX, tmp_best_rdu = INT64_MAX; int tmp_best_rate = INT_MAX, tmp_best_ratey = INT_MAX; int64_t tmp_best_distortion = INT_MAX, tmp_best_sse, uv_sse; int tmp_best_skippable = 0; int switchable_filter_index; int_mv *second_ref = comp_pred ? &mbmi->ref_mvs[second_ref_frame][0] : NULL; b_mode_info tmp_best_bmodes[16]; MB_MODE_INFO tmp_best_mbmode; BEST_SEG_INFO bsi[SWITCHABLE_FILTERS]; int pred_exists = 0; int uv_skippable; this_rd_thresh = (ref_frame == LAST_FRAME) ? rd_opt->threshes[segment_id][bsize][THR_LAST] : rd_opt->threshes[segment_id][bsize][THR_ALTR]; this_rd_thresh = (ref_frame == GOLDEN_FRAME) ? rd_opt->threshes[segment_id][bsize][THR_GOLD] : this_rd_thresh; rd_opt->mask_filter = 0; for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i) rd_opt->filter_cache[i] = INT64_MAX; if (cm->interp_filter != BILINEAR) { tmp_best_filter = EIGHTTAP; if (x->source_variance < cpi->sf.disable_filter_search_var_thresh) { tmp_best_filter = EIGHTTAP; } else if (cpi->sf.adaptive_pred_interp_filter == 1 && ctx->pred_interp_filter < SWITCHABLE) { tmp_best_filter = ctx->pred_interp_filter; } else if (cpi->sf.adaptive_pred_interp_filter == 2) { tmp_best_filter = ctx->pred_interp_filter < SWITCHABLE ? ctx->pred_interp_filter : 0; } else { for (switchable_filter_index = 0; switchable_filter_index < SWITCHABLE_FILTERS; ++switchable_filter_index) { int newbest, rs; int64_t rs_rd; mbmi->interp_filter = switchable_filter_index; tmp_rd = rd_pick_best_sub8x8_mode(cpi, x, tile, &mbmi->ref_mvs[ref_frame][0], second_ref, best_yrd, &rate, &rate_y, &distortion, &skippable, &total_sse, (int) this_rd_thresh, seg_mvs, bsi, switchable_filter_index, mi_row, mi_col); if (tmp_rd == INT64_MAX) continue; rs = vp9_get_switchable_rate(cpi); rs_rd = RDCOST(x->rdmult, x->rddiv, rs, 0); rd_opt->filter_cache[switchable_filter_index] = tmp_rd; rd_opt->filter_cache[SWITCHABLE_FILTERS] = MIN(rd_opt->filter_cache[SWITCHABLE_FILTERS], tmp_rd + rs_rd); if (cm->interp_filter == SWITCHABLE) tmp_rd += rs_rd; rd_opt->mask_filter = MAX(rd_opt->mask_filter, tmp_rd); newbest = (tmp_rd < tmp_best_rd); if (newbest) { tmp_best_filter = mbmi->interp_filter; tmp_best_rd = tmp_rd; } if ((newbest && cm->interp_filter == SWITCHABLE) || (mbmi->interp_filter == cm->interp_filter && cm->interp_filter != SWITCHABLE)) { tmp_best_rdu = tmp_rd; tmp_best_rate = rate; tmp_best_ratey = rate_y; tmp_best_distortion = distortion; tmp_best_sse = total_sse; tmp_best_skippable = skippable; tmp_best_mbmode = *mbmi; for (i = 0; i < 4; i++) { tmp_best_bmodes[i] = xd->mi[0].src_mi->bmi[i]; x->zcoeff_blk[TX_4X4][i] = !x->plane[0].eobs[i]; } pred_exists = 1; if (switchable_filter_index == 0 && cpi->sf.use_rd_breakout && best_rd < INT64_MAX) { if (tmp_best_rdu / 2 > best_rd) { // skip searching the other filters if the first is // already substantially larger than the best so far tmp_best_filter = mbmi->interp_filter; tmp_best_rdu = INT64_MAX; break; } } } } // switchable_filter_index loop } } if (tmp_best_rdu == INT64_MAX && pred_exists) continue; mbmi->interp_filter = (cm->interp_filter == SWITCHABLE ? tmp_best_filter : cm->interp_filter); if (!pred_exists) { // Handles the special case when a filter that is not in the // switchable list (bilinear, 6-tap) is indicated at the frame level tmp_rd = rd_pick_best_sub8x8_mode(cpi, x, tile, &mbmi->ref_mvs[ref_frame][0], second_ref, best_yrd, &rate, &rate_y, &distortion, &skippable, &total_sse, (int) this_rd_thresh, seg_mvs, bsi, 0, mi_row, mi_col); if (tmp_rd == INT64_MAX) continue; } else { total_sse = tmp_best_sse; rate = tmp_best_rate; rate_y = tmp_best_ratey; distortion = tmp_best_distortion; skippable = tmp_best_skippable; *mbmi = tmp_best_mbmode; for (i = 0; i < 4; i++) xd->mi[0].src_mi->bmi[i] = tmp_best_bmodes[i]; } rate2 += rate; distortion2 += distortion; if (cm->interp_filter == SWITCHABLE) rate2 += vp9_get_switchable_rate(cpi); if (!mode_excluded) mode_excluded = comp_pred ? cm->reference_mode == SINGLE_REFERENCE : cm->reference_mode == COMPOUND_REFERENCE; compmode_cost = vp9_cost_bit(comp_mode_p, comp_pred); tmp_best_rdu = best_rd - MIN(RDCOST(x->rdmult, x->rddiv, rate2, distortion2), RDCOST(x->rdmult, x->rddiv, 0, total_sse)); if (tmp_best_rdu > 0) { // If even the 'Y' rd value of split is higher than best so far // then dont bother looking at UV vp9_build_inter_predictors_sbuv(&x->e_mbd, mi_row, mi_col, BLOCK_8X8); super_block_uvrd(cpi, x, &rate_uv, &distortion_uv, &uv_skippable, &uv_sse, BLOCK_8X8, tmp_best_rdu); if (rate_uv == INT_MAX) continue; rate2 += rate_uv; distortion2 += distortion_uv; skippable = skippable && uv_skippable; total_sse += uv_sse; } } if (cm->reference_mode == REFERENCE_MODE_SELECT) rate2 += compmode_cost; // Estimate the reference frame signaling cost and add it // to the rolling cost variable. if (second_ref_frame > INTRA_FRAME) { rate2 += ref_costs_comp[ref_frame]; } else { rate2 += ref_costs_single[ref_frame]; } if (!disable_skip) { // Skip is never coded at the segment level for sub8x8 blocks and instead // always coded in the bitstream at the mode info level. if (ref_frame != INTRA_FRAME && !xd->lossless) { if (RDCOST(x->rdmult, x->rddiv, rate_y + rate_uv, distortion2) < RDCOST(x->rdmult, x->rddiv, 0, total_sse)) { // Add in the cost of the no skip flag. rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0); } else { // FIXME(rbultje) make this work for splitmv also rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1); distortion2 = total_sse; assert(total_sse >= 0); rate2 -= (rate_y + rate_uv); rate_y = 0; rate_uv = 0; this_skip2 = 1; } } else { // Add in the cost of the no skip flag. rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0); } // Calculate the final RD estimate for this mode. this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2); } if (!disable_skip && ref_frame == INTRA_FRAME) { for (i = 0; i < REFERENCE_MODES; ++i) best_pred_rd[i] = MIN(best_pred_rd[i], this_rd); for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) best_filter_rd[i] = MIN(best_filter_rd[i], this_rd); } // Did this mode help.. i.e. is it the new best mode if (this_rd < best_rd || x->skip) { if (!mode_excluded) { int max_plane = MAX_MB_PLANE; // Note index of best mode so far best_ref_index = ref_index; if (ref_frame == INTRA_FRAME) { /* required for left and above block mv */ mbmi->mv[0].as_int = 0; max_plane = 1; } *returnrate = rate2; *returndistortion = distortion2; best_rd = this_rd; best_yrd = best_rd - RDCOST(x->rdmult, x->rddiv, rate_uv, distortion_uv); best_mbmode = *mbmi; best_skip2 = this_skip2; if (!x->select_tx_size) swap_block_ptr(x, ctx, 1, 0, 0, max_plane); vpx_memcpy(ctx->zcoeff_blk, x->zcoeff_blk[TX_4X4], sizeof(uint8_t) * ctx->num_4x4_blk); for (i = 0; i < 4; i++) best_bmodes[i] = xd->mi[0].src_mi->bmi[i]; // TODO(debargha): enhance this test with a better distortion prediction // based on qp, activity mask and history if ((cpi->sf.mode_search_skip_flags & FLAG_EARLY_TERMINATE) && (ref_index > MIN_EARLY_TERM_INDEX)) { const int qstep = xd->plane[0].dequant[1]; // TODO(debargha): Enhance this by specializing for each mode_index int scale = 4; if (x->source_variance < UINT_MAX) { const int var_adjust = (x->source_variance < 16); scale -= var_adjust; } if (ref_frame > INTRA_FRAME && distortion2 * scale < qstep * qstep) { early_term = 1; } } } } /* keep record of best compound/single-only prediction */ if (!disable_skip && ref_frame != INTRA_FRAME) { int64_t single_rd, hybrid_rd, single_rate, hybrid_rate; if (cm->reference_mode == REFERENCE_MODE_SELECT) { single_rate = rate2 - compmode_cost; hybrid_rate = rate2; } else { single_rate = rate2; hybrid_rate = rate2 + compmode_cost; } single_rd = RDCOST(x->rdmult, x->rddiv, single_rate, distortion2); hybrid_rd = RDCOST(x->rdmult, x->rddiv, hybrid_rate, distortion2); if (!comp_pred && single_rd < best_pred_rd[SINGLE_REFERENCE]) best_pred_rd[SINGLE_REFERENCE] = single_rd; else if (comp_pred && single_rd < best_pred_rd[COMPOUND_REFERENCE]) best_pred_rd[COMPOUND_REFERENCE] = single_rd; if (hybrid_rd < best_pred_rd[REFERENCE_MODE_SELECT]) best_pred_rd[REFERENCE_MODE_SELECT] = hybrid_rd; } /* keep record of best filter type */ if (!mode_excluded && !disable_skip && ref_frame != INTRA_FRAME && cm->interp_filter != BILINEAR) { int64_t ref = rd_opt->filter_cache[cm->interp_filter == SWITCHABLE ? SWITCHABLE_FILTERS : cm->interp_filter]; int64_t adj_rd; for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) { if (ref == INT64_MAX) adj_rd = 0; else if (rd_opt->filter_cache[i] == INT64_MAX) // when early termination is triggered, the encoder does not have // access to the rate-distortion cost. it only knows that the cost // should be above the maximum valid value. hence it takes the known // maximum plus an arbitrary constant as the rate-distortion cost. adj_rd = rd_opt->mask_filter - ref + 10; else adj_rd = rd_opt->filter_cache[i] - ref; adj_rd += this_rd; best_filter_rd[i] = MIN(best_filter_rd[i], adj_rd); } } if (early_term) break; if (x->skip && !comp_pred) break; } if (best_rd >= best_rd_so_far) return INT64_MAX; // If we used an estimate for the uv intra rd in the loop above... if (cpi->sf.use_uv_intra_rd_estimate) { // Do Intra UV best rd mode selection if best mode choice above was intra. if (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) { *returnrate = INT_MAX; *returndistortion = INT64_MAX; return best_rd; } assert((cm->interp_filter == SWITCHABLE) || (cm->interp_filter == best_mbmode.interp_filter) || !is_inter_block(&best_mbmode)); update_rd_thresh_fact(cpi, bsize, best_ref_index); // macroblock modes *mbmi = best_mbmode; x->skip |= best_skip2; if (!is_inter_block(&best_mbmode)) { for (i = 0; i < 4; i++) xd->mi[0].src_mi->bmi[i].as_mode = best_bmodes[i].as_mode; } else { for (i = 0; i < 4; ++i) vpx_memcpy(&xd->mi[0].src_mi->bmi[i], &best_bmodes[i], sizeof(b_mode_info)); mbmi->mv[0].as_int = xd->mi[0].src_mi->bmi[3].as_mv[0].as_int; mbmi->mv[1].as_int = xd->mi[0].src_mi->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); return best_rd; }