/* * 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 #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_pragmas.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_mcomp.h" #include "vp9/encoder/vp9_onyx_int.h" #include "vp9/encoder/vp9_quantize.h" #include "vp9/encoder/vp9_ratectrl.h" #include "vp9/encoder/vp9_rdopt.h" #include "vp9/encoder/vp9_tokenize.h" #include "vp9/encoder/vp9_variance.h" #define RD_THRESH_MAX_FACT 64 #define RD_THRESH_INC 1 #define RD_THRESH_POW 1.25 #define RD_MULT_EPB_RATIO 64 /* Factor to weigh the rate for switchable interp filters */ #define SWITCHABLE_INTERP_RATE_FACTOR 1 #define LAST_FRAME_MODE_MASK 0xFFEDCD60 #define GOLDEN_FRAME_MODE_MASK 0xFFDA3BB0 #define ALT_REF_MODE_MASK 0xFFC648D0 #define MIN_EARLY_TERM_INDEX 3 typedef struct { MB_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; }; 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}}, }; 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}}, }; // The baseline rd thresholds for breaking out of the rd loop for // certain modes are assumed to be based on 8x8 blocks. // This table is used to correct for blocks size. // The factors here are << 2 (2 = x0.5, 32 = x8 etc). static int rd_thresh_block_size_factor[BLOCK_SIZES] = {2, 3, 3, 4, 6, 6, 8, 12, 12, 16, 24, 24, 32}; 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 fill_mode_costs(VP9_COMP *cpi) { MACROBLOCK *const x = &cpi->mb; const FRAME_CONTEXT *const fc = &cpi->common.fc; int i, j; for (i = 0; i < INTRA_MODES; i++) for (j = 0; j < INTRA_MODES; j++) vp9_cost_tokens((int *)x->y_mode_costs[i][j], vp9_kf_y_mode_prob[i][j], vp9_intra_mode_tree); // TODO(rbultje) separate tables for superblock costing? vp9_cost_tokens(x->mbmode_cost, fc->y_mode_prob[1], vp9_intra_mode_tree); vp9_cost_tokens(x->intra_uv_mode_cost[KEY_FRAME], vp9_kf_uv_mode_prob[TM_PRED], vp9_intra_mode_tree); vp9_cost_tokens(x->intra_uv_mode_cost[INTER_FRAME], fc->uv_mode_prob[TM_PRED], vp9_intra_mode_tree); for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i) vp9_cost_tokens((int *)x->switchable_interp_costs[i], fc->switchable_interp_prob[i], vp9_switchable_interp_tree); } static void fill_token_costs(vp9_coeff_cost *c, vp9_coeff_probs_model (*p)[PLANE_TYPES]) { int i, j, k, l; TX_SIZE t; for (t = TX_4X4; t <= TX_32X32; ++t) for (i = 0; i < PLANE_TYPES; ++i) for (j = 0; j < REF_TYPES; ++j) for (k = 0; k < COEF_BANDS; ++k) for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) { vp9_prob probs[ENTROPY_NODES]; vp9_model_to_full_probs(p[t][i][j][k][l], probs); vp9_cost_tokens((int *)c[t][i][j][k][0][l], probs, vp9_coef_tree); vp9_cost_tokens_skip((int *)c[t][i][j][k][1][l], probs, vp9_coef_tree); assert(c[t][i][j][k][0][l][EOB_TOKEN] == c[t][i][j][k][1][l][EOB_TOKEN]); } } static const int rd_iifactor[32] = { 4, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; // 3* dc_qlookup[Q]*dc_qlookup[Q]; /* values are now correlated to quantizer */ static int sad_per_bit16lut[QINDEX_RANGE]; static int sad_per_bit4lut[QINDEX_RANGE]; void vp9_init_me_luts() { int i; // Initialize the sad lut tables using a formulaic calculation for now // This is to make it easier to resolve the impact of experimental changes // to the quantizer tables. for (i = 0; i < QINDEX_RANGE; i++) { const double q = vp9_convert_qindex_to_q(i); sad_per_bit16lut[i] = (int)(0.0418 * q + 2.4107); sad_per_bit4lut[i] = (int)(0.063 * q + 2.742); } } int vp9_compute_rd_mult(const VP9_COMP *cpi, int qindex) { const int q = vp9_dc_quant(qindex, 0); // TODO(debargha): Adjust the function below int rdmult = 88 * q * q / 25; if (cpi->pass == 2 && (cpi->common.frame_type != KEY_FRAME)) { if (cpi->twopass.next_iiratio > 31) rdmult += (rdmult * rd_iifactor[31]) >> 4; else rdmult += (rdmult * rd_iifactor[cpi->twopass.next_iiratio]) >> 4; } return rdmult; } static int compute_rd_thresh_factor(int qindex) { // TODO(debargha): Adjust the function below const int q = (int)(pow(vp9_dc_quant(qindex, 0) / 4.0, RD_THRESH_POW) * 5.12); return MAX(q, 8); } void vp9_initialize_me_consts(VP9_COMP *cpi, int qindex) { cpi->mb.sadperbit16 = sad_per_bit16lut[qindex]; cpi->mb.sadperbit4 = sad_per_bit4lut[qindex]; } static void set_block_thresholds(VP9_COMP *cpi) { const VP9_COMMON *const cm = &cpi->common; const SPEED_FEATURES *const sf = &cpi->sf; int i, bsize, segment_id; for (segment_id = 0; segment_id < MAX_SEGMENTS; ++segment_id) { const int qindex = clamp(vp9_get_qindex(&cm->seg, segment_id, cm->base_qindex) + cm->y_dc_delta_q, 0, MAXQ); const int q = compute_rd_thresh_factor(qindex); for (bsize = 0; bsize < BLOCK_SIZES; ++bsize) { // Threshold here seems unnecessarily harsh but fine given actual // range of values used for cpi->sf.thresh_mult[]. const int t = q * rd_thresh_block_size_factor[bsize]; const int thresh_max = INT_MAX / t; for (i = 0; i < MAX_MODES; ++i) cpi->rd_threshes[segment_id][bsize][i] = sf->thresh_mult[i] < thresh_max ? sf->thresh_mult[i] * t / 4 : INT_MAX; for (i = 0; i < MAX_REFS; ++i) { cpi->rd_thresh_sub8x8[segment_id][bsize][i] = sf->thresh_mult_sub8x8[i] < thresh_max ? sf->thresh_mult_sub8x8[i] * t / 4 : INT_MAX; } } } } void vp9_initialize_rd_consts(VP9_COMP *cpi) { VP9_COMMON *const cm = &cpi->common; MACROBLOCK *const x = &cpi->mb; int i; vp9_clear_system_state(); cpi->RDDIV = RDDIV_BITS; // in bits (to multiply D by 128) cpi->RDMULT = vp9_compute_rd_mult(cpi, cm->base_qindex + cm->y_dc_delta_q); x->errorperbit = cpi->RDMULT / RD_MULT_EPB_RATIO; x->errorperbit += (x->errorperbit == 0); x->select_txfm_size = (cpi->sf.tx_size_search_method == USE_LARGESTALL && cm->frame_type != KEY_FRAME) ? 0 : 1; set_block_thresholds(cpi); if (!cpi->sf.use_nonrd_pick_mode || cm->frame_type == KEY_FRAME) { fill_token_costs(x->token_costs, cm->fc.coef_probs); for (i = 0; i < PARTITION_CONTEXTS; i++) vp9_cost_tokens(x->partition_cost[i], get_partition_probs(cm, i), vp9_partition_tree); } if (!cpi->sf.use_nonrd_pick_mode || (cm->current_video_frame & 0x07) == 1 || cm->frame_type == KEY_FRAME) { fill_mode_costs(cpi); if (!frame_is_intra_only(cm)) { vp9_build_nmv_cost_table(x->nmvjointcost, cm->allow_high_precision_mv ? x->nmvcost_hp : x->nmvcost, &cm->fc.nmvc, cm->allow_high_precision_mv); for (i = 0; i < INTER_MODE_CONTEXTS; ++i) vp9_cost_tokens((int *)x->inter_mode_cost[i], cm->fc.inter_mode_probs[i], vp9_inter_mode_tree); } } } static const int MAX_XSQ_Q10 = 245727; static void model_rd_norm(int xsq_q10, int *r_q10, int *d_q10) { // NOTE: The tables below must be of the same size // The functions described below are sampled at the four most significant // bits of x^2 + 8 / 256 // Normalized rate // This table models the rate for a Laplacian source // source with given variance when quantized with a uniform quantizer // with given stepsize. The closed form expression is: // Rn(x) = H(sqrt(r)) + sqrt(r)*[1 + H(r)/(1 - r)], // where r = exp(-sqrt(2) * x) and x = qpstep / sqrt(variance), // and H(x) is the binary entropy function. static const int rate_tab_q10[] = { 65536, 6086, 5574, 5275, 5063, 4899, 4764, 4651, 4553, 4389, 4255, 4142, 4044, 3958, 3881, 3811, 3748, 3635, 3538, 3453, 3376, 3307, 3244, 3186, 3133, 3037, 2952, 2877, 2809, 2747, 2690, 2638, 2589, 2501, 2423, 2353, 2290, 2232, 2179, 2130, 2084, 2001, 1928, 1862, 1802, 1748, 1698, 1651, 1608, 1530, 1460, 1398, 1342, 1290, 1243, 1199, 1159, 1086, 1021, 963, 911, 864, 821, 781, 745, 680, 623, 574, 530, 490, 455, 424, 395, 345, 304, 269, 239, 213, 190, 171, 154, 126, 104, 87, 73, 61, 52, 44, 38, 28, 21, 16, 12, 10, 8, 6, 5, 3, 2, 1, 1, 1, 0, 0, }; // Normalized distortion // This table models the normalized distortion for a Laplacian source // source with given variance when quantized with a uniform quantizer // with given stepsize. The closed form expression is: // Dn(x) = 1 - 1/sqrt(2) * x / sinh(x/sqrt(2)) // where x = qpstep / sqrt(variance) // Note the actual distortion is Dn * variance. static const int dist_tab_q10[] = { 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 5, 5, 6, 7, 7, 8, 9, 11, 12, 13, 15, 16, 17, 18, 21, 24, 26, 29, 31, 34, 36, 39, 44, 49, 54, 59, 64, 69, 73, 78, 88, 97, 106, 115, 124, 133, 142, 151, 167, 184, 200, 215, 231, 245, 260, 274, 301, 327, 351, 375, 397, 418, 439, 458, 495, 528, 559, 587, 613, 637, 659, 680, 717, 749, 777, 801, 823, 842, 859, 874, 899, 919, 936, 949, 960, 969, 977, 983, 994, 1001, 1006, 1010, 1013, 1015, 1017, 1018, 1020, 1022, 1022, 1023, 1023, 1023, 1024, }; static const int xsq_iq_q10[] = { 0, 4, 8, 12, 16, 20, 24, 28, 32, 40, 48, 56, 64, 72, 80, 88, 96, 112, 128, 144, 160, 176, 192, 208, 224, 256, 288, 320, 352, 384, 416, 448, 480, 544, 608, 672, 736, 800, 864, 928, 992, 1120, 1248, 1376, 1504, 1632, 1760, 1888, 2016, 2272, 2528, 2784, 3040, 3296, 3552, 3808, 4064, 4576, 5088, 5600, 6112, 6624, 7136, 7648, 8160, 9184, 10208, 11232, 12256, 13280, 14304, 15328, 16352, 18400, 20448, 22496, 24544, 26592, 28640, 30688, 32736, 36832, 40928, 45024, 49120, 53216, 57312, 61408, 65504, 73696, 81888, 90080, 98272, 106464, 114656, 122848, 131040, 147424, 163808, 180192, 196576, 212960, 229344, 245728, }; /* static const int tab_size = sizeof(rate_tab_q10) / sizeof(rate_tab_q10[0]); assert(sizeof(dist_tab_q10) / sizeof(dist_tab_q10[0]) == tab_size); assert(sizeof(xsq_iq_q10) / sizeof(xsq_iq_q10[0]) == tab_size); assert(MAX_XSQ_Q10 + 1 == xsq_iq_q10[tab_size - 1]); */ int tmp = (xsq_q10 >> 2) + 8; int k = get_msb(tmp) - 3; int xq = (k << 3) + ((tmp >> k) & 0x7); const int one_q10 = 1 << 10; const int a_q10 = ((xsq_q10 - xsq_iq_q10[xq]) << 10) >> (2 + k); const int b_q10 = one_q10 - a_q10; *r_q10 = (rate_tab_q10[xq] * b_q10 + rate_tab_q10[xq + 1] * a_q10) >> 10; *d_q10 = (dist_tab_q10[xq] * b_q10 + dist_tab_q10[xq + 1] * a_q10) >> 10; } void vp9_model_rd_from_var_lapndz(unsigned int var, unsigned int n, unsigned int qstep, int *rate, int64_t *dist) { // This function models the rate and distortion for a Laplacian // source with given variance when quantized with a uniform quantizer // with given stepsize. The closed form expressions are in: // Hang and Chen, "Source Model for transform video coder and its // application - Part I: Fundamental Theory", IEEE Trans. Circ. // Sys. for Video Tech., April 1997. if (var == 0) { *rate = 0; *dist = 0; } else { int d_q10, r_q10; const uint64_t xsq_q10_64 = ((((uint64_t)qstep * qstep * n) << 10) + (var >> 1)) / var; const int xsq_q10 = xsq_q10_64 > MAX_XSQ_Q10 ? MAX_XSQ_Q10 : (int)xsq_q10_64; model_rd_norm(xsq_q10, &r_q10, &d_q10); *rate = (n * r_q10 + 2) >> 2; *dist = (var * (int64_t)d_q10 + 512) >> 10; } } 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_8x8[0]->mbmi.ref_frame[0]; unsigned int sse; 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); (void) cpi->fn_ptr[bs].vf(p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride, &sse); if (i == 0) x->pred_sse[ref] = sse; // Fast approximate the modelling function. if (cpi->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 { int rate; int64_t dist; vp9_model_rd_from_var_lapndz(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; } static void model_rd_for_sb_y_tx(VP9_COMP *cpi, BLOCK_SIZE bsize, TX_SIZE tx_size, MACROBLOCK *x, MACROBLOCKD *xd, int *out_rate_sum, int64_t *out_dist_sum, int *out_skip) { int j, k; BLOCK_SIZE bs; const struct macroblock_plane *const p = &x->plane[0]; const struct macroblockd_plane *const pd = &xd->plane[0]; const int width = 4 * num_4x4_blocks_wide_lookup[bsize]; const int height = 4 * num_4x4_blocks_high_lookup[bsize]; int rate_sum = 0; int64_t dist_sum = 0; const int t = 4 << tx_size; if (tx_size == TX_4X4) { bs = BLOCK_4X4; } else if (tx_size == TX_8X8) { bs = BLOCK_8X8; } else if (tx_size == TX_16X16) { bs = BLOCK_16X16; } else if (tx_size == TX_32X32) { bs = BLOCK_32X32; } else { assert(0); } *out_skip = 1; for (j = 0; j < height; j += t) { for (k = 0; k < width; k += t) { int rate; int64_t dist; unsigned int sse; cpi->fn_ptr[bs].vf(&p->src.buf[j * p->src.stride + k], p->src.stride, &pd->dst.buf[j * pd->dst.stride + k], pd->dst.stride, &sse); // sse works better than var, since there is no dc prediction used vp9_model_rd_from_var_lapndz(sse, t * t, pd->dequant[1] >> 3, &rate, &dist); rate_sum += rate; dist_sum += dist; *out_skip &= (rate < 1024); } } *out_rate_sum = rate_sum; *out_dist_sum = dist_sum << 4; } int64_t vp9_block_error_c(const int16_t *coeff, const int16_t *dqcoeff, intptr_t block_size, int64_t *ssz) { int i; int64_t error = 0, sqcoeff = 0; for (i = 0; i < block_size; i++) { const int diff = coeff[i] - dqcoeff[i]; error += diff * diff; sqcoeff += coeff[i] * coeff[i]; } *ssz = sqcoeff; return error; } /* The trailing '0' is a terminator which is used inside cost_coeffs() to * decide whether to include cost of a trailing EOB node or not (i.e. we * can skip this if the last coefficient in this transform block, e.g. the * 16th coefficient in a 4x4 block or the 64th coefficient in a 8x8 block, * were non-zero). */ static const int16_t band_counts[TX_SIZES][8] = { { 1, 2, 3, 4, 3, 16 - 13, 0 }, { 1, 2, 3, 4, 11, 64 - 21, 0 }, { 1, 2, 3, 4, 11, 256 - 21, 0 }, { 1, 2, 3, 4, 11, 1024 - 21, 0 }, }; static INLINE int cost_coeffs(MACROBLOCK *x, int plane, int block, ENTROPY_CONTEXT *A, ENTROPY_CONTEXT *L, TX_SIZE tx_size, const int16_t *scan, const int16_t *nb, int use_fast_coef_costing) { MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *mbmi = &xd->mi_8x8[0]->mbmi; const struct macroblock_plane *p = &x->plane[plane]; const struct macroblockd_plane *pd = &xd->plane[plane]; const PLANE_TYPE type = pd->plane_type; const int16_t *band_count = &band_counts[tx_size][1]; const int eob = p->eobs[block]; const int16_t *const qcoeff = BLOCK_OFFSET(p->qcoeff, block); unsigned int (*token_costs)[2][COEFF_CONTEXTS][ENTROPY_TOKENS] = x->token_costs[tx_size][type][is_inter_block(mbmi)]; uint8_t *p_tok = x->token_cache; 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) == 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]; p_tok[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, p_tok, c); cost += (*token_costs)[!prev_t][pt][t] + vp9_dct_value_cost_ptr[v]; p_tok[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, p_tok, c); cost += (*token_costs)[0][pt][EOB_TOKEN]; } } } // is eob first coefficient; *A = *L = (c > 0); return cost; } static void dist_block(int plane, int block, TX_SIZE tx_size, struct rdcost_block_args* args) { const int ss_txfrm_size = tx_size << 1; MACROBLOCK* const x = args->x; MACROBLOCKD* const xd = &x->e_mbd; const struct macroblock_plane *const p = &x->plane[plane]; const struct macroblockd_plane *const pd = &xd->plane[plane]; int64_t this_sse; int shift = tx_size == TX_32X32 ? 0 : 2; int16_t *const coeff = BLOCK_OFFSET(p->coeff, block); int16_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); args->dist = vp9_block_error(coeff, dqcoeff, 16 << ss_txfrm_size, &this_sse) >> shift; args->sse = this_sse >> shift; if (x->skip_encode && !is_inter_block(&xd->mi_8x8[0]->mbmi)) { // TODO(jingning): tune the model to better capture the distortion. int64_t p = (pd->dequant[1] * pd->dequant[1] * (1 << ss_txfrm_size)) >> (shift + 2); args->dist += (p >> 4); args->sse += p; } } static void rate_block(int plane, int block, BLOCK_SIZE plane_bsize, TX_SIZE tx_size, struct rdcost_block_args* args) { int x_idx, y_idx; txfrm_block_to_raster_xy(plane_bsize, tx_size, block, &x_idx, &y_idx); args->rate = cost_coeffs(args->x, plane, block, args->t_above + x_idx, args->t_left + y_idx, tx_size, args->so->scan, args->so->neighbors, args->use_fast_coef_costing); } static void block_rd_txfm(int plane, int block, BLOCK_SIZE plane_bsize, TX_SIZE tx_size, void *arg) { struct rdcost_block_args *args = arg; MACROBLOCK *const x = args->x; MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi; int64_t rd1, rd2, rd; if (args->skip) return; if (!is_inter_block(mbmi)) vp9_encode_block_intra(x, plane, block, plane_bsize, tx_size, &mbmi->skip); else 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; } } void vp9_get_entropy_contexts(BLOCK_SIZE bsize, TX_SIZE tx_size, const struct macroblockd_plane *pd, ENTROPY_CONTEXT t_above[16], ENTROPY_CONTEXT t_left[16]) { const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd); const int num_4x4_w = num_4x4_blocks_wide_lookup[plane_bsize]; const int num_4x4_h = num_4x4_blocks_high_lookup[plane_bsize]; const ENTROPY_CONTEXT *const above = pd->above_context; const ENTROPY_CONTEXT *const left = pd->left_context; int i; switch (tx_size) { case TX_4X4: vpx_memcpy(t_above, above, sizeof(ENTROPY_CONTEXT) * num_4x4_w); vpx_memcpy(t_left, left, sizeof(ENTROPY_CONTEXT) * num_4x4_h); break; case TX_8X8: for (i = 0; i < num_4x4_w; i += 2) t_above[i] = !!*(const uint16_t *)&above[i]; for (i = 0; i < num_4x4_h; i += 2) t_left[i] = !!*(const uint16_t *)&left[i]; break; case TX_16X16: for (i = 0; i < num_4x4_w; i += 4) t_above[i] = !!*(const uint32_t *)&above[i]; for (i = 0; i < num_4x4_h; i += 4) t_left[i] = !!*(const uint32_t *)&left[i]; break; case TX_32X32: for (i = 0; i < num_4x4_w; i += 8) t_above[i] = !!*(const uint64_t *)&above[i]; for (i = 0; i < num_4x4_h; i += 8) t_left[i] = !!*(const uint64_t *)&left[i]; break; default: assert(0 && "Invalid transform size."); } } 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 = { 0 }; args.x = x; args.best_rd = ref_best_rd; args.use_fast_coef_costing = use_fast_coef_casting; if (plane == 0) xd->mi_8x8[0]->mbmi.tx_size = tx_size; vp9_get_entropy_contexts(bsize, tx_size, pd, args.t_above, args.t_left); args.so = get_scan(xd, tx_size, pd->plane_type, 0); vp9_foreach_transformed_block_in_plane(xd, bsize, plane, block_rd_txfm, &args); if (args.skip) { *rate = INT_MAX; *distortion = INT64_MAX; *sse = INT64_MAX; *skippable = 0; } else { *distortion = args.this_dist; *rate = args.this_rate; *sse = args.this_sse; *skippable = vp9_is_skippable_in_plane(x, bsize, plane); } } static void choose_largest_txfm_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_8x8[0]->mbmi; mbmi->tx_size = MIN(max_tx_size, largest_tx_size); txfm_rd_in_plane(x, rate, distortion, skip, &sse[mbmi->tx_size], ref_best_rd, 0, bs, mbmi->tx_size, cpi->sf.use_fast_coef_costing); cpi->tx_stepdown_count[0]++; } static void choose_txfm_size_from_rd(VP9_COMP *cpi, MACROBLOCK *x, int (*r)[2], int *rate, int64_t *d, int64_t *distortion, int *s, int *skip, int64_t tx_cache[TX_MODES], 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_8x8[0]->mbmi; vp9_prob skip_prob = vp9_get_skip_prob(cm, xd); 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 = TX_4X4; 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 = TX_4X4; n <= max_tx_size; n++) { r[n][1] = r[n][0]; if (r[n][0] < INT_MAX) { for (m = 0; m <= n - (n == 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]); } 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]; 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]; cpi->tx_stepdown_count[0]++; } else if (max_tx_size >= TX_16X16 && best_tx == TX_16X16) { tx_cache[TX_MODE_SELECT] = rd[TX_16X16][1]; cpi->tx_stepdown_count[max_tx_size - TX_16X16]++; } else if (rd[TX_8X8][1] < rd[TX_4X4][1]) { tx_cache[TX_MODE_SELECT] = rd[TX_8X8][1]; cpi->tx_stepdown_count[max_tx_size - TX_8X8]++; } else { tx_cache[TX_MODE_SELECT] = rd[TX_4X4][1]; cpi->tx_stepdown_count[max_tx_size - TX_4X4]++; } } static int64_t scaled_rd_cost(int rdmult, int rddiv, int rate, int64_t dist, double scale) { return (int64_t) (RDCOST(rdmult, rddiv, rate, dist) * scale); } static void choose_txfm_size_from_modelrd(VP9_COMP *cpi, MACROBLOCK *x, int (*r)[2], int *rate, int64_t *d, int64_t *distortion, int *s, 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; MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi; vp9_prob skip_prob = vp9_get_skip_prob(cm, xd); 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; double scale_rd[TX_SIZES] = {1.73, 1.44, 1.20, 1.00}; 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 = TX_4X4; 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 = TX_4X4; n <= max_tx_size; n++) { double scale = scale_rd[n]; r[n][1] = r[n][0]; for (m = 0; m <= n - (n == 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 (s[n]) { rd[n][0] = rd[n][1] = scaled_rd_cost(x->rdmult, x->rddiv, s1, d[n], scale); } else { rd[n][0] = scaled_rd_cost(x->rdmult, x->rddiv, r[n][0] + s0, d[n], scale); rd[n][1] = scaled_rd_cost(x->rdmult, x->rddiv, r[n][1] + s0, d[n], scale); } if (rd[n][1] < best_rd) { best_rd = rd[n][1]; best_tx = n; } } mbmi->tx_size = cm->tx_mode == TX_MODE_SELECT ? best_tx : MIN(max_tx_size, max_mode_tx_size); // Actually encode using the chosen mode if a model was used, but do not // update the r, d costs txfm_rd_in_plane(x, rate, distortion, skip, &sse[mbmi->tx_size], ref_best_rd, 0, bs, mbmi->tx_size, cpi->sf.use_fast_coef_costing); if (max_tx_size == TX_32X32 && best_tx == TX_32X32) { cpi->tx_stepdown_count[0]++; } else if (max_tx_size >= TX_16X16 && best_tx == TX_16X16) { cpi->tx_stepdown_count[max_tx_size - TX_16X16]++; } else if (rd[TX_8X8][1] <= rd[TX_4X4][1]) { cpi->tx_stepdown_count[max_tx_size - TX_8X8]++; } else { cpi->tx_stepdown_count[max_tx_size - TX_4X4]++; } } static void inter_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) { int r[TX_SIZES][2], s[TX_SIZES]; int64_t d[TX_SIZES], sse[TX_SIZES]; MACROBLOCKD *xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi; const TX_SIZE max_tx_size = max_txsize_lookup[bs]; TX_SIZE tx_size; assert(bs == mbmi->sb_type); vp9_subtract_plane(x, bs, 0); if (cpi->sf.tx_size_search_method == USE_LARGESTALL) { vpx_memset(txfm_cache, 0, TX_MODES * sizeof(int64_t)); choose_largest_txfm_size(cpi, x, rate, distortion, skip, sse, ref_best_rd, bs); if (psse) *psse = sse[mbmi->tx_size]; return; } if (cpi->sf.tx_size_search_method == USE_LARGESTINTRA_MODELINTER) { for (tx_size = TX_4X4; tx_size <= max_tx_size; ++tx_size) model_rd_for_sb_y_tx(cpi, bs, tx_size, x, xd, &r[tx_size][0], &d[tx_size], &s[tx_size]); choose_txfm_size_from_modelrd(cpi, x, r, rate, d, distortion, s, skip, sse, ref_best_rd, bs); } else { for (tx_size = TX_4X4; tx_size <= max_tx_size; ++tx_size) txfm_rd_in_plane(x, &r[tx_size][0], &d[tx_size], &s[tx_size], &sse[tx_size], ref_best_rd, 0, bs, tx_size, cpi->sf.use_fast_coef_costing); choose_txfm_size_from_rd(cpi, x, r, rate, d, distortion, s, skip, txfm_cache, bs); } if (psse) *psse = sse[mbmi->tx_size]; } static void intra_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) { int64_t sse[TX_SIZES]; MACROBLOCKD *xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi; assert(bs == mbmi->sb_type); if (cpi->sf.tx_size_search_method != USE_FULL_RD) { vpx_memset(txfm_cache, 0, TX_MODES * sizeof(int64_t)); choose_largest_txfm_size(cpi, x, rate, distortion, skip, sse, ref_best_rd, bs); } else { int r[TX_SIZES][2], s[TX_SIZES]; int64_t d[TX_SIZES]; TX_SIZE tx_size; for (tx_size = TX_4X4; tx_size <= max_txsize_lookup[bs]; ++tx_size) txfm_rd_in_plane(x, &r[tx_size][0], &d[tx_size], &s[tx_size], &sse[tx_size], ref_best_rd, 0, bs, tx_size, cpi->sf.use_fast_coef_costing); choose_txfm_size_from_rd(cpi, x, r, rate, d, distortion, s, skip, txfm_cache, bs); } if (psse) *psse = sse[mbmi->tx_size]; } static int conditional_skipintra(MB_PREDICTION_MODE mode, MB_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, MB_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) { MB_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_8x8[0]->mbmi.tx_size = TX_4X4; for (mode = DC_PRED; mode <= TM_PRED; ++mode) { int64_t this_rd; int ratey = 0; int64_t distortion = 0; int rate = bmode_costs[mode]; if (!(cpi->sf.intra_y_mode_mask[TX_4X4] & (1 << mode))) continue; // Only do the oblique modes if the best so far is // one of the neighboring directional modes if (cpi->sf.mode_search_skip_flags & FLAG_SKIP_INTRA_DIRMISMATCH) { if (conditional_skipintra(mode, *best_mode)) continue; } vpx_memcpy(tempa, ta, sizeof(ta)); vpx_memcpy(templ, tl, sizeof(tl)); for (idy = 0; idy < num_4x4_blocks_high; ++idy) { for (idx = 0; idx < num_4x4_blocks_wide; ++idx) { const int block = ib + idy * 2 + idx; const uint8_t *const src = &src_init[idx * 4 + idy * 4 * src_stride]; uint8_t *const dst = &dst_init[idx * 4 + idy * 4 * dst_stride]; int16_t *const src_diff = raster_block_offset_int16(BLOCK_8X8, block, p->src_diff); int16_t *const coeff = BLOCK_OFFSET(x->plane[0].coeff, block); xd->mi_8x8[0]->bmi[block].as_mode = mode; vp9_predict_intra_block(xd, block, 1, TX_4X4, mode, x->skip_encode ? src : dst, x->skip_encode ? src_stride : dst_stride, dst, dst_stride, idx, idy, 0); vp9_subtract_block(4, 4, src_diff, 8, src, src_stride, dst, dst_stride); if (xd->lossless) { const scan_order *so = &vp9_default_scan_orders[TX_4X4]; vp9_fwht4x4(src_diff, coeff, 8); vp9_regular_quantize_b_4x4(x, 0, block, so->scan, so->iscan); ratey += cost_coeffs(x, 0, block, tempa + idx, templ + idy, TX_4X4, so->scan, so->neighbors, cpi->sf.use_fast_coef_costing); if (RDCOST(x->rdmult, x->rddiv, ratey, distortion) >= best_rd) goto next; vp9_iwht4x4_add(BLOCK_OFFSET(pd->dqcoeff, block), dst, dst_stride, p->eobs[block]); } else { int64_t unused; const TX_TYPE tx_type = get_tx_type_4x4(PLANE_TYPE_Y, xd, block); const scan_order *so = &vp9_scan_orders[TX_4X4][tx_type]; vp9_fht4x4(src_diff, coeff, 8, tx_type); vp9_regular_quantize_b_4x4(x, 0, block, so->scan, so->iscan); ratey += cost_coeffs(x, 0, block, tempa + idx, templ + idy, TX_4X4, so->scan, so->neighbors, cpi->sf.use_fast_coef_costing); distortion += vp9_block_error(coeff, BLOCK_OFFSET(pd->dqcoeff, block), 16, &unused) >> 2; if (RDCOST(x->rdmult, x->rddiv, ratey, distortion) >= best_rd) goto next; vp9_iht4x4_add(tx_type, BLOCK_OFFSET(pd->dqcoeff, block), dst, dst_stride, p->eobs[block]); } } } rate += ratey; this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion); if (this_rd < best_rd) { *bestrate = rate; *bestratey = ratey; *bestdistortion = distortion; best_rd = this_rd; *best_mode = mode; vpx_memcpy(a, tempa, sizeof(tempa)); vpx_memcpy(l, templ, sizeof(templ)); for (idy = 0; idy < num_4x4_blocks_high * 4; ++idy) vpx_memcpy(best_dst + idy * 8, dst_init + idy * dst_stride, num_4x4_blocks_wide * 4); } next: {} } if (best_rd >= rd_thresh || x->skip_encode) return best_rd; for (idy = 0; idy < num_4x4_blocks_high * 4; ++idy) vpx_memcpy(dst_init + idy * dst_stride, best_dst + idy * 8, num_4x4_blocks_wide * 4); return best_rd; } static int64_t rd_pick_intra_sub_8x8_y_mode(VP9_COMP *cpi, MACROBLOCK *mb, int *rate, int *rate_y, int64_t *distortion, int64_t best_rd) { int i, j; const MACROBLOCKD *const xd = &mb->e_mbd; MODE_INFO *const mic = xd->mi_8x8[0]; const MODE_INFO *above_mi = xd->mi_8x8[-xd->mode_info_stride]; const MODE_INFO *left_mi = xd->left_available ? xd->mi_8x8[-1] : NULL; const BLOCK_SIZE bsize = xd->mi_8x8[0]->mbmi.sb_type; const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize]; const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize]; int idx, idy; int cost = 0; int64_t total_distortion = 0; int tot_rate_y = 0; int64_t total_rd = 0; ENTROPY_CONTEXT t_above[4], t_left[4]; const int *bmode_costs = mb->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) { MB_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 MB_PREDICTION_MODE A = vp9_above_block_mode(mic, above_mi, i); const MB_PREDICTION_MODE L = vp9_left_block_mode(mic, left_mi, i); bmode_costs = mb->y_mode_costs[A][L]; } this_rd = rd_pick_intra4x4block(cpi, mb, i, &best_mode, bmode_costs, t_above + idx, t_left + idy, &r, &ry, &d, bsize, best_rd - total_rd); if (this_rd >= best_rd - total_rd) return INT64_MAX; total_rd += this_rd; cost += r; total_distortion += d; tot_rate_y += ry; mic->bmi[i].as_mode = best_mode; for (j = 1; j < num_4x4_blocks_high; ++j) mic->bmi[i + j * 2].as_mode = best_mode; for (j = 1; j < num_4x4_blocks_wide; ++j) mic->bmi[i + j].as_mode = best_mode; if (total_rd >= best_rd) return INT64_MAX; } } *rate = cost; *rate_y = tot_rate_y; *distortion = total_distortion; mic->mbmi.mode = mic->bmi[3].as_mode; return RDCOST(mb->rdmult, mb->rddiv, cost, total_distortion); } static int64_t rd_pick_intra_sby_mode(VP9_COMP *cpi, MACROBLOCK *x, int *rate, int *rate_tokenonly, int64_t *distortion, int *skippable, BLOCK_SIZE bsize, int64_t tx_cache[TX_MODES], int64_t best_rd) { MB_PREDICTION_MODE mode; MB_PREDICTION_MODE mode_selected = DC_PRED; MACROBLOCKD *const xd = &x->e_mbd; MODE_INFO *const mic = xd->mi_8x8[0]; int this_rate, this_rate_tokenonly, s; int64_t this_distortion, this_rd; TX_SIZE best_tx = TX_4X4; int i; int *bmode_costs = x->mbmode_cost; if (cpi->sf.tx_size_search_method == USE_FULL_RD) for (i = 0; i < TX_MODES; i++) tx_cache[i] = INT64_MAX; /* Y Search for intra prediction mode */ for (mode = DC_PRED; mode <= TM_PRED; mode++) { int64_t local_tx_cache[TX_MODES]; MODE_INFO *above_mi = xd->mi_8x8[-xd->mode_info_stride]; MODE_INFO *left_mi = xd->left_available ? xd->mi_8x8[-1] : NULL; if (!(cpi->sf.intra_y_mode_mask[max_txsize_lookup[bsize]] & (1 << mode))) continue; if (cpi->common.frame_type == KEY_FRAME) { const MB_PREDICTION_MODE A = vp9_above_block_mode(mic, above_mi, 0); const MB_PREDICTION_MODE L = vp9_left_block_mode(mic, left_mi, 0); bmode_costs = x->y_mode_costs[A][L]; } mic->mbmi.mode = mode; intra_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_8x8[0]->mbmi; TX_SIZE uv_txfm_size = get_uv_tx_size(mbmi); 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_txfm_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; MB_PREDICTION_MODE mode; MB_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_8x8[0]->mbmi.uv_mode = mode; super_block_uvrd(cpi, x, &this_rate_tokenonly, &this_distortion, &s, &this_sse, bsize, best_rd); if (this_rate_tokenonly == INT_MAX) continue; this_rate = this_rate_tokenonly + x->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_txfm_size) { int i; struct macroblock_plane *const p = x->plane; struct macroblockd_plane *const pd = xd->plane; for (i = 1; i < MAX_MB_PLANE; ++i) { p[i].coeff = ctx->coeff_pbuf[i][2]; p[i].qcoeff = ctx->qcoeff_pbuf[i][2]; pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][2]; p[i].eobs = ctx->eobs_pbuf[i][2]; ctx->coeff_pbuf[i][2] = ctx->coeff_pbuf[i][0]; ctx->qcoeff_pbuf[i][2] = ctx->qcoeff_pbuf[i][0]; ctx->dqcoeff_pbuf[i][2] = ctx->dqcoeff_pbuf[i][0]; ctx->eobs_pbuf[i][2] = ctx->eobs_pbuf[i][0]; ctx->coeff_pbuf[i][0] = p[i].coeff; ctx->qcoeff_pbuf[i][0] = p[i].qcoeff; ctx->dqcoeff_pbuf[i][0] = pd[i].dqcoeff; ctx->eobs_pbuf[i][0] = p[i].eobs; } } } } xd->mi_8x8[0]->mbmi.uv_mode = mode_selected; return best_rd; } static int64_t rd_sbuv_dcpred(const VP9_COMP *cpi, MACROBLOCK *x, int *rate, int *rate_tokenonly, int64_t *distortion, int *skippable, BLOCK_SIZE bsize) { const VP9_COMMON *cm = &cpi->common; int64_t unused; x->e_mbd.mi_8x8[0]->mbmi.uv_mode = DC_PRED; super_block_uvrd(cpi, x, rate_tokenonly, distortion, skippable, &unused, bsize, INT64_MAX); *rate = *rate_tokenonly + x->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, MB_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_8x8[0]->mbmi.uv_mode; } static int cost_mv_ref(VP9_COMP *cpi, MB_PREDICTION_MODE mode, int mode_context) { MACROBLOCK *const x = &cpi->mb; const int segment_id = x->e_mbd.mi_8x8[0]->mbmi.segment_id; // Don't account for mode here if segment skip is enabled. if (!vp9_segfeature_active(&cpi->common.seg, segment_id, SEG_LVL_SKIP)) { assert(is_inter_mode(mode)); return x->inter_mode_cost[mode_context][INTER_OFFSET(mode)]; } else { return 0; } } 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 labels2mode(VP9_COMP *cpi, MACROBLOCKD *xd, int i, MB_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_8x8[0]; const MB_MODE_INFO *const mbmi = &mic->mbmi; int thismvcost = 0; int idx, idy; const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[mbmi->sb_type]; const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[mbmi->sb_type]; const int is_compound = has_second_ref(mbmi); // the only time we should do costing for new motion vector or mode // is when we are on a new label (jbb May 08, 2007) 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 NEARESTMV: this_mv[0].as_int = frame_mv[NEARESTMV][mbmi->ref_frame[0]].as_int; if (is_compound) this_mv[1].as_int = frame_mv[NEARESTMV][mbmi->ref_frame[1]].as_int; break; case NEARMV: this_mv[0].as_int = frame_mv[NEARMV][mbmi->ref_frame[0]].as_int; if (is_compound) this_mv[1].as_int = frame_mv[NEARMV][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_8x8[0]; const BLOCK_SIZE plane_bsize = get_plane_block_size(mi->mbmi.sb_type, pd); const int width = 4 * num_4x4_blocks_wide_lookup[plane_bsize]; const int height = 4 * num_4x4_blocks_high_lookup[plane_bsize]; int idx, idy; const uint8_t *const src = &p->src.buf[raster_block_offset(BLOCK_8X8, i, p->src.stride)]; uint8_t *const dst = &pd->dst.buf[raster_block_offset(BLOCK_8X8, i, pd->dst.stride)]; int64_t thisdistortion = 0, thissse = 0; int thisrate = 0, ref; const scan_order *so = &vp9_default_scan_orders[TX_4X4]; const int is_compound = has_second_ref(&mi->mbmi); 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, xd->interp_kernel, MV_PRECISION_Q3, mi_col * MI_SIZE + 4 * (i % 2), mi_row * MI_SIZE + 4 * (i / 2)); } vp9_subtract_block(height, width, raster_block_offset_int16(BLOCK_8X8, i, p->src_diff), 8, src, p->src.stride, dst, pd->dst.stride); k = i; for (idy = 0; idy < height / 4; ++idy) { for (idx = 0; idx < width / 4; ++idx) { int64_t ssz, rd, rd1, rd2; int16_t* coeff; k += (idy * 2 + idx); coeff = BLOCK_OFFSET(p->coeff, k); x->fwd_txm4x4(raster_block_offset_int16(BLOCK_8X8, k, p->src_diff), coeff, 8); vp9_regular_quantize_b_4x4(x, 0, k, so->scan, so->iscan); thisdistortion += vp9_block_error(coeff, BLOCK_OFFSET(pd->dqcoeff, k), 16, &ssz); thissse += ssz; thisrate += cost_coeffs(x, 0, k, ta + (k & 1), tl + (k >> 1), TX_4X4, so->scan, so->neighbors, cpi->sf.use_fast_coef_costing); rd1 = RDCOST(x->rdmult, x->rddiv, thisrate, thisdistortion >> 2); rd2 = RDCOST(x->rdmult, x->rddiv, 0, thissse >> 2); rd = MIN(rd1, rd2); if (rd >= best_yrd) return INT64_MAX; } } *distortion = thisdistortion >> 2; *labelyrate = thisrate; *sse = thissse >> 2; return RDCOST(x->rdmult, x->rddiv, *labelyrate, *distortion); } typedef struct { int eobs; int brate; int byrate; int64_t bdist; int64_t bsse; int64_t brdcost; int_mv mvs[2]; ENTROPY_CONTEXT ta[2]; ENTROPY_CONTEXT tl[2]; } SEG_RDSTAT; typedef struct { int_mv *ref_mv[2]; int_mv mvp; int64_t segment_rd; int r; int64_t d; int64_t sse; int segment_yrate; MB_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_8x8[0]->mbmi; struct macroblock_plane *const p = &x->plane[0]; struct macroblockd_plane *const pd = &x->e_mbd.plane[0]; p->src.buf = &p->src.buf[raster_block_offset(BLOCK_8X8, i, p->src.stride)]; assert(((intptr_t)pd->pre[0].buf & 0x7) == 0); pd->pre[0].buf = &pd->pre[0].buf[raster_block_offset(BLOCK_8X8, i, pd->pre[0].stride)]; if (has_second_ref(mbmi)) pd->pre[1].buf = &pd->pre[1].buf[raster_block_offset(BLOCK_8X8, i, pd->pre[1].stride)]; } static INLINE void mi_buf_restore(MACROBLOCK *x, struct buf_2d orig_src, struct buf_2d orig_pre[2]) { MB_MODE_INFO *mbmi = &x->e_mbd.mi_8x8[0]->mbmi; x->plane[0].src = orig_src; x->e_mbd.plane[0].pre[0] = orig_pre[0]; if (has_second_ref(mbmi)) x->e_mbd.plane[0].pre[1] = orig_pre[1]; } static INLINE int mv_has_subpel(const MV *mv) { return (mv->row & 0x0F) || (mv->col & 0x0F); } static void rd_check_segment_txsize(VP9_COMP *cpi, MACROBLOCK *x, const TileInfo *const tile, BEST_SEG_INFO *bsi_buf, int filter_idx, int_mv seg_mvs[4][MAX_REF_FRAMES], int mi_row, int mi_col) { int k, br = 0, idx, idy; int64_t bd = 0, block_sse = 0; MB_PREDICTION_MODE this_mode; MACROBLOCKD *xd = &x->e_mbd; VP9_COMMON *cm = &cpi->common; MODE_INFO *mi = xd->mi_8x8[0]; MB_MODE_INFO *const mbmi = &mi->mbmi; 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]; vp9_variance_fn_ptr_t *v_fn_ptr = &cpi->fn_ptr[bsize]; ENTROPY_CONTEXT t_above[2], t_left[2]; BEST_SEG_INFO *bsi = bsi_buf + filter_idx; int mode_idx; int subpelmv = 1, have_ref = 0; const int has_second_rf = has_second_ref(mbmi); const int disable_inter_mode_mask = cpi->sf.disable_inter_mode_mask[bsize]; 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]; MB_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 (disable_inter_mode_mask & (1 << mode_idx)) continue; // if we're near/nearest and mv == 0,0, compare to zeromv if (!(disable_inter_mode_mask & (1 << INTER_OFFSET(ZEROMV))) && (this_mode == NEARMV || this_mode == NEARESTMV || this_mode == ZEROMV) && frame_mv[this_mode][mbmi->ref_frame[0]].as_int == 0 && (!has_second_rf || frame_mv[this_mode][mbmi->ref_frame[1]].as_int == 0)) { int rfc = mbmi->mode_context[mbmi->ref_frame[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) continue; } else if (this_mode == NEARESTMV) { if (c2 > c3) continue; } else { assert(this_mode == ZEROMV); if (!has_second_rf) { if ((c3 >= c2 && frame_mv[NEARESTMV][mbmi->ref_frame[0]].as_int == 0) || (c3 >= c1 && frame_mv[NEARMV][mbmi->ref_frame[0]].as_int == 0)) continue; } else { if ((c3 >= c2 && frame_mv[NEARESTMV][mbmi->ref_frame[0]].as_int == 0 && frame_mv[NEARESTMV][mbmi->ref_frame[1]].as_int == 0) || (c3 >= c1 && frame_mv[NEARMV][mbmi->ref_frame[0]].as_int == 0 && frame_mv[NEARMV][mbmi->ref_frame[1]].as_int == 0)) 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) { int_mv *const new_mv = &mode_mv[NEWMV][0]; int step_param = 0; int further_steps; int thissme, bestsme = INT_MAX; int sadpb = x->sadperbit4; MV mvp_full; int max_mv; /* 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 != MODE_SECONDPASS_BEST && cpi->oxcf.mode != MODE_BESTQUALITY) { // 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.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(cpi, max_mv) + cpi->mv_step_param) >> 1; } 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 && cm->show_frame) { mvp_full.row = x->pred_mv[mbmi->ref_frame[0]].as_mv.row >> 3; mvp_full.col = x->pred_mv[mbmi->ref_frame[0]].as_mv.col >> 3; step_param = MAX(step_param, 8); } further_steps = (MAX_MVSEARCH_STEPS - 1) - step_param; // adjust src pointer for this block mi_buf_shift(x, i); vp9_set_mv_search_range(x, &bsi->ref_mv[0]->as_mv); if (cpi->sf.search_method == HEX) { bestsme = vp9_hex_search(x, &mvp_full, step_param, sadpb, 1, v_fn_ptr, 1, &bsi->ref_mv[0]->as_mv, &new_mv->as_mv); if (bestsme < INT_MAX) bestsme = vp9_get_mvpred_var(x, &new_mv->as_mv, &bsi->ref_mv[0]->as_mv, v_fn_ptr, 1); } else if (cpi->sf.search_method == SQUARE) { bestsme = vp9_square_search(x, &mvp_full, step_param, sadpb, 1, v_fn_ptr, 1, &bsi->ref_mv[0]->as_mv, &new_mv->as_mv); if (bestsme < INT_MAX) bestsme = vp9_get_mvpred_var(x, &new_mv->as_mv, &bsi->ref_mv[0]->as_mv, v_fn_ptr, 1); } else if (cpi->sf.search_method == BIGDIA) { bestsme = vp9_bigdia_search(x, &mvp_full, step_param, sadpb, 1, v_fn_ptr, 1, &bsi->ref_mv[0]->as_mv, &new_mv->as_mv); if (bestsme < INT_MAX) bestsme = vp9_get_mvpred_var(x, &new_mv->as_mv, &bsi->ref_mv[0]->as_mv, v_fn_ptr, 1); } else { bestsme = vp9_full_pixel_diamond(cpi, x, &mvp_full, step_param, sadpb, further_steps, 0, v_fn_ptr, &bsi->ref_mv[0]->as_mv, &new_mv->as_mv); } // Should we do a full search (best quality only) if (cpi->oxcf.mode == MODE_BESTQUALITY || cpi->oxcf.mode == MODE_SECONDPASS_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, v_fn_ptr, x->nmvjointcost, x->mvcost, &bsi->ref_mv[0]->as_mv, &best_mv->as_mv); if (thissme < bestsme) { bestsme = thissme; new_mv->as_int = best_mv->as_int; } else { // The full search result is actually worse so re-instate the // previous best vector best_mv->as_int = new_mv->as_int; } } if (bestsme < INT_MAX) { int distortion; cpi->find_fractional_mv_step(x, &new_mv->as_mv, &bsi->ref_mv[0]->as_mv, cm->allow_high_precision_mv, x->errorperbit, v_fn_ptr, cpi->sf.subpel_force_stop, cpi->sf.subpel_iters_per_step, x->nmvjointcost, x->mvcost, &distortion, &x->pred_sse[mbmi->ref_frame[0]]); // save motion search result for use in compound prediction seg_mvs[i][mbmi->ref_frame[0]].as_int = new_mv->as_int; } if (cpi->sf.adaptive_motion_search) x->pred_mv[mbmi->ref_frame[0]].as_int = new_mv->as_int; // 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 = labels2mode(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; } 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)); labels2mode(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; } } } /* 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; } static int64_t rd_pick_best_mbsegmentation(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_8x8[0]; MB_MODE_INFO *mbmi = &mi->mbmi; int mode_idx; 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; rd_check_segment_txsize(cpi, x, tile, bsi_buf, filter_idx, seg_mvs, mi_row, mi_col); 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 mv_pred(VP9_COMP *cpi, MACROBLOCK *x, uint8_t *ref_y_buffer, int ref_y_stride, int ref_frame, BLOCK_SIZE block_size ) { MACROBLOCKD *xd = &x->e_mbd; MB_MODE_INFO *mbmi = &xd->mi_8x8[0]->mbmi; int_mv this_mv; int i; int zero_seen = 0; int best_index = 0; int best_sad = INT_MAX; int this_sad = INT_MAX; int max_mv = 0; uint8_t *src_y_ptr = x->plane[0].src.buf; uint8_t *ref_y_ptr; int row_offset, col_offset; int num_mv_refs = MAX_MV_REF_CANDIDATES + (cpi->sf.adaptive_motion_search && cpi->common.show_frame && block_size < cpi->sf.max_partition_size); int_mv pred_mv[3]; pred_mv[0] = mbmi->ref_mvs[ref_frame][0]; pred_mv[1] = mbmi->ref_mvs[ref_frame][1]; pred_mv[2] = x->pred_mv[ref_frame]; // Get the sad for each candidate reference mv for (i = 0; i < num_mv_refs; i++) { this_mv.as_int = pred_mv[i].as_int; max_mv = MAX(max_mv, MAX(abs(this_mv.as_mv.row), abs(this_mv.as_mv.col)) >> 3); // only need to check zero mv once if (!this_mv.as_int && zero_seen) continue; zero_seen = zero_seen || !this_mv.as_int; row_offset = this_mv.as_mv.row >> 3; col_offset = this_mv.as_mv.col >> 3; ref_y_ptr = ref_y_buffer + (ref_y_stride * row_offset) + col_offset; // Find sad for current vector. this_sad = cpi->fn_ptr[block_size].sdf(src_y_ptr, x->plane[0].src.stride, ref_y_ptr, ref_y_stride, 0x7fffffff); // Note if it is the best so far. if (this_sad < best_sad) { best_sad = this_sad; best_index = i; } } // Note the index of the mv that worked best in the reference list. x->mv_best_ref_index[ref_frame] = best_index; x->max_mv_context[ref_frame] = max_mv; x->pred_mv_sad[ref_frame] = best_sad; } static void estimate_ref_frame_costs(VP9_COMP *cpi, int segment_id, unsigned int *ref_costs_single, unsigned int *ref_costs_comp, vp9_prob *comp_mode_p) { VP9_COMMON *const cm = &cpi->common; MACROBLOCKD *const xd = &cpi->mb.e_mbd; 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, int_mv *ref_mv, int_mv *second_ref_mv, int64_t comp_pred_diff[REFERENCE_MODES], int64_t tx_size_diff[TX_MODES], int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS]) { 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->best_mode_index = mode_index; ctx->mic = *xd->mi_8x8[0]; ctx->best_ref_mv[0].as_int = ref_mv->as_int; ctx->best_ref_mv[1].as_int = second_ref_mv->as_int; 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_pred_block(const MACROBLOCKD *xd, struct buf_2d dst[MAX_MB_PLANE], const YV12_BUFFER_CONFIG *src, int mi_row, int mi_col, const struct scale_factors *scale, const struct scale_factors *scale_uv) { int i; dst[0].buf = src->y_buffer; dst[0].stride = src->y_stride; dst[1].buf = src->u_buffer; dst[2].buf = src->v_buffer; dst[1].stride = dst[2].stride = src->uv_stride; #if CONFIG_ALPHA dst[3].buf = src->alpha_buffer; dst[3].stride = src->alpha_stride; #endif // TODO(jkoleszar): Make scale factors per-plane data for (i = 0; i < MAX_MB_PLANE; i++) { setup_pred_plane(dst + i, dst[i].buf, dst[i].stride, mi_row, mi_col, i ? scale_uv : scale, xd->plane[i].subsampling_x, xd->plane[i].subsampling_y); } } void vp9_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_8x8[0]; int_mv *const candidates = mi->mbmi.ref_mvs[ref_frame]; const struct scale_factors *const sf = &cm->frame_refs[ref_frame - 1].sf; // TODO(jkoleszar): Is the UV buffer ever used here? If so, need to make this // use the UV scaling factors. 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) mv_pred(cpi, x, yv12_mb[ref_frame][0].buf, yv12->y_stride, ref_frame, block_size); } const YV12_BUFFER_CONFIG *vp9_get_scaled_ref_frame(const VP9_COMP *cpi, int ref_frame) { const VP9_COMMON *const cm = &cpi->common; const int ref_idx = cm->ref_frame_map[get_ref_frame_idx(cpi, ref_frame)]; const int scaled_idx = cpi->scaled_ref_idx[ref_frame - 1]; return (scaled_idx != ref_idx) ? &cm->frame_bufs[scaled_idx].buf : NULL; } static INLINE int get_switchable_rate(const MACROBLOCK *x) { const MACROBLOCKD *const xd = &x->e_mbd; const MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi; const int ctx = vp9_get_pred_context_switchable_interp(xd); return SWITCHABLE_INTERP_RATE_FACTOR * x->switchable_interp_costs[ctx][mbmi->interp_filter]; } static void single_motion_search(VP9_COMP *cpi, MACROBLOCK *x, const TileInfo *const tile, BLOCK_SIZE bsize, int mi_row, int mi_col, int_mv *tmp_mv, int *rate_mv) { MACROBLOCKD *xd = &x->e_mbd; VP9_COMMON *cm = &cpi->common; MB_MODE_INFO *mbmi = &xd->mi_8x8[0]->mbmi; struct buf_2d backup_yv12[MAX_MB_PLANE] = {{0}}; int bestsme = INT_MAX; int further_steps, 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; 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].as_mv; 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.auto_mv_step_size && cpi->common.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(cpi, x->max_mv_context[ref]) + cpi->mv_step_param) >> 1; } else { step_param = cpi->mv_step_param; } if (cpi->sf.adaptive_motion_search && bsize < BLOCK_64X64 && cpi->common.show_frame) { 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_lookup[bsize]; int bhl = b_height_log2_lookup[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 && cpi->common.show_frame; ++i) { if ((x->pred_mv_sad[ref] >> 3) > x->pred_mv_sad[i]) { x->pred_mv[ref].as_int = 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; // Further step/diamond searches as necessary further_steps = (cpi->sf.max_step_search_steps - 1) - step_param; if (cpi->sf.search_method == FAST_DIAMOND) { bestsme = vp9_fast_dia_search(x, &mvp_full, step_param, sadpb, 0, &cpi->fn_ptr[bsize], 1, &ref_mv, &tmp_mv->as_mv); if (bestsme < INT_MAX) bestsme = vp9_get_mvpred_var(x, &tmp_mv->as_mv, &ref_mv, &cpi->fn_ptr[bsize], 1); } else if (cpi->sf.search_method == FAST_HEX) { bestsme = vp9_fast_hex_search(x, &mvp_full, step_param, sadpb, 0, &cpi->fn_ptr[bsize], 1, &ref_mv, &tmp_mv->as_mv); if (bestsme < INT_MAX) bestsme = vp9_get_mvpred_var(x, &tmp_mv->as_mv, &ref_mv, &cpi->fn_ptr[bsize], 1); } else if (cpi->sf.search_method == HEX) { bestsme = vp9_hex_search(x, &mvp_full, step_param, sadpb, 1, &cpi->fn_ptr[bsize], 1, &ref_mv, &tmp_mv->as_mv); if (bestsme < INT_MAX) bestsme = vp9_get_mvpred_var(x, &tmp_mv->as_mv, &ref_mv, &cpi->fn_ptr[bsize], 1); } else if (cpi->sf.search_method == SQUARE) { bestsme = vp9_square_search(x, &mvp_full, step_param, sadpb, 1, &cpi->fn_ptr[bsize], 1, &ref_mv, &tmp_mv->as_mv); if (bestsme < INT_MAX) bestsme = vp9_get_mvpred_var(x, &tmp_mv->as_mv, &ref_mv, &cpi->fn_ptr[bsize], 1); } else if (cpi->sf.search_method == BIGDIA) { bestsme = vp9_bigdia_search(x, &mvp_full, step_param, sadpb, 1, &cpi->fn_ptr[bsize], 1, &ref_mv, &tmp_mv->as_mv); if (bestsme < INT_MAX) bestsme = vp9_get_mvpred_var(x, &tmp_mv->as_mv, &ref_mv, &cpi->fn_ptr[bsize], 1); } else { bestsme = vp9_full_pixel_diamond(cpi, x, &mvp_full, step_param, sadpb, further_steps, 1, &cpi->fn_ptr[bsize], &ref_mv, &tmp_mv->as_mv); } 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.subpel_force_stop, cpi->sf.subpel_iters_per_step, x->nmvjointcost, x->mvcost, &dis, &x->pred_sse[ref]); } *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 && cpi->common.show_frame) x->pred_mv[ref].as_int = tmp_mv->as_int; 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_8x8[0]->mbmi; const int refs[2] = { mbmi->ref_frame[0], mbmi->ref_frame[1] < 0 ? 0 : mbmi->ref_frame[1] }; int_mv ref_mv[2]; int ite, ref; // Prediction buffer from second frame. uint8_t *second_pred = vpx_memalign(16, pw * ph * sizeof(uint8_t)); // 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; int_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, xd->interp_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.as_int = frame_mv[refs[id]].as_int; tmp_mv.as_mv.col >>= 3; tmp_mv.as_mv.row >>= 3; // Small-range full-pixel motion search bestsme = vp9_refining_search_8p_c(x, &tmp_mv.as_mv, sadpb, search_range, &cpi->fn_ptr[bsize], x->nmvjointcost, x->mvcost, &ref_mv[id].as_mv, second_pred, pw, ph); if (bestsme < INT_MAX) bestsme = vp9_get_mvpred_av_var(x, &tmp_mv.as_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_comp( x, &tmp_mv.as_mv, &ref_mv[id].as_mv, cpi->common.allow_high_precision_mv, x->errorperbit, &cpi->fn_ptr[bsize], 0, cpi->sf.subpel_iters_per_step, 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_int = tmp_mv.as_int; 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 int64_t handle_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, const TileInfo *const tile, 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 *mode_excluded, int *disable_skip, INTERP_FILTER *best_filter, int_mv (*mode_mv)[MAX_REF_FRAMES], int mi_row, int mi_col, int_mv single_newmv[MAX_REF_FRAMES], int64_t *psse, const int64_t ref_best_rd) { VP9_COMMON *cm = &cpi->common; MACROBLOCKD *xd = &x->e_mbd; MB_MODE_INFO *mbmi = &xd->mi_8x8[0]->mbmi; const int is_comp_pred = has_second_ref(mbmi); const int num_refs = is_comp_pred ? 2 : 1; 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, 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; 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 (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, tile, 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_8x8[0]->bmi[0].as_mv[0].as_int = tmp_mv.as_int; single_newmv[refs[0]].as_int = tmp_mv.as_int; } } for (i = 0; i < num_refs; ++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 (!(*mode_excluded)) *mode_excluded = is_comp_pred ? cm->reference_mode == SINGLE_REFERENCE : cm->reference_mode == COMPOUND_REFERENCE; 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 cpi->mask_filter_rd = 0; for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i) cpi->rd_filter_cache[i] = INT64_MAX; if (cm->interp_filter != BILINEAR) { *best_filter = EIGHTTAP; if (x->source_variance < cpi->sf.disable_filter_search_var_thresh) { *best_filter = EIGHTTAP; } else { 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; xd->interp_kernel = vp9_get_interp_kernel(mbmi->interp_filter); rs = get_switchable_rate(x); 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); cpi->rd_filter_cache[i] = rd; cpi->rd_filter_cache[SWITCHABLE_FILTERS] = MIN(cpi->rd_filter_cache[SWITCHABLE_FILTERS], rd + rs_rd); if (cm->interp_filter == SWITCHABLE) rd += rs_rd; cpi->mask_filter_rd = MAX(cpi->mask_filter_rd, rd); } else { int rate_sum = 0; int64_t dist_sum = 0; 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); cpi->rd_filter_cache[i] = rd; cpi->rd_filter_cache[SWITCHABLE_FILTERS] = MIN(cpi->rd_filter_cache[SWITCHABLE_FILTERS], rd + rs_rd); if (cm->interp_filter == SWITCHABLE) rd += rs_rd; cpi->mask_filter_rd = MAX(cpi->mask_filter_rd, rd); if (i == 0 && intpel_mv) { tmp_rate_sum = rate_sum; tmp_dist_sum = dist_sum; } } if (i == 0 && cpi->sf.use_rd_breakout && ref_best_rd < INT64_MAX) { if (rd / 2 > ref_best_rd) { restore_dst_buf(xd, orig_dst, orig_dst_stride); return INT64_MAX; } } newbest = i == 0 || rd < best_rd; if (newbest) { best_rd = rd; *best_filter = mbmi->interp_filter; if (cm->interp_filter == SWITCHABLE && i && !intpel_mv) best_needs_copy = !best_needs_copy; } if ((cm->interp_filter == SWITCHABLE && newbest) || (cm->interp_filter != SWITCHABLE && cm->interp_filter == mbmi->interp_filter)) { pred_exists = 1; } } 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; xd->interp_kernel = vp9_get_interp_kernel(mbmi->interp_filter); rs = cm->interp_filter == SWITCHABLE ? get_switchable_rate(x) : 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; } } } else { // Handles the special case when a filter that is not in the // switchable list (ex. bilinear, 6-tap) is indicated at the frame level vp9_build_inter_predictors_sb(xd, mi_row, mi_col, bsize); } if (cpi->sf.use_rd_breakout && ref_best_rd < INT64_MAX) { int tmp_rate; int64_t tmp_dist; model_rd_for_sb(cpi, bsize, x, xd, &tmp_rate, &tmp_dist); rd = RDCOST(x->rdmult, x->rddiv, rs + tmp_rate, tmp_dist); // 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 += get_switchable_rate(x); if (!is_comp_pred) { if (!x->in_active_map) { if (psse) *psse = 0; *distortion = 0; x->skip = 1; } else if (cpi->allow_encode_breakout && x->encode_breakout) { 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; // 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); 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); // Adjust threshold according to partition size. thresh_ac >>= 8 - (b_width_log2_lookup[bsize] + b_height_log2_lookup[bsize]); // Y skipping condition checking if (sse < thresh_ac || sse == 0) { // Skipping threshold for dc unsigned int thresh_dc; thresh_dc = (xd->plane[0].dequant[0] * xd->plane[0].dequant[0] >> 6); // 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; this_rd = RDCOST(x->rdmult, x->rddiv, *rate2, *distortion); } } } } } } if (!x->skip) { int skippable_y, skippable_uv; int64_t sseuv = INT64_MAX; int64_t rdcosty = INT64_MAX; // Y cost and distortion inter_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; } restore_dst_buf(xd, orig_dst, orig_dst_stride); return this_rd; // if 0, this will be re-calculated by caller } static void swap_block_ptr(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx, int max_plane) { struct macroblock_plane *const p = x->plane; struct macroblockd_plane *const pd = x->e_mbd.plane; int i; for (i = 0; i < max_plane; ++i) { p[i].coeff = ctx->coeff_pbuf[i][1]; p[i].qcoeff = ctx->qcoeff_pbuf[i][1]; pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][1]; p[i].eobs = ctx->eobs_pbuf[i][1]; ctx->coeff_pbuf[i][1] = ctx->coeff_pbuf[i][0]; ctx->qcoeff_pbuf[i][1] = ctx->qcoeff_pbuf[i][0]; ctx->dqcoeff_pbuf[i][1] = ctx->dqcoeff_pbuf[i][0]; ctx->eobs_pbuf[i][1] = ctx->eobs_pbuf[i][0]; ctx->coeff_pbuf[i][0] = p[i].coeff; ctx->qcoeff_pbuf[i][0] = p[i].qcoeff; ctx->dqcoeff_pbuf[i][0] = pd[i].dqcoeff; ctx->eobs_pbuf[i][0] = p[i].eobs; } } 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; 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_8x8[0]->mbmi.ref_frame[0] = INTRA_FRAME; if (bsize >= BLOCK_8X8) { if (rd_pick_intra_sby_mode(cpi, x, &rate_y, &rate_y_tokenonly, &dist_y, &y_skip, bsize, tx_cache, best_rd) >= best_rd) { *returnrate = INT_MAX; return; } max_uv_tx_size = get_uv_tx_size_impl(xd->mi_8x8[0]->mbmi.tx_size, bsize); rd_pick_intra_sbuv_mode(cpi, x, ctx, &rate_uv, &rate_uv_tokenonly, &dist_uv, &uv_skip, bsize, max_uv_tx_size); } else { y_skip = 0; if (rd_pick_intra_sub_8x8_y_mode(cpi, x, &rate_y, &rate_y_tokenonly, &dist_y, best_rd) >= best_rd) { *returnrate = INT_MAX; return; } max_uv_tx_size = get_uv_tx_size_impl(xd->mi_8x8[0]->mbmi.tx_size, bsize); rd_pick_intra_sbuv_mode(cpi, x, ctx, &rate_uv, &rate_uv_tokenonly, &dist_uv, &uv_skip, BLOCK_8X8, max_uv_tx_size); } if (y_skip && uv_skip) { *returnrate = rate_y + rate_uv - rate_y_tokenonly - rate_uv_tokenonly + vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1); *returndist = dist_y + dist_uv; vp9_zero(ctx->tx_rd_diff); } else { int i; *returnrate = rate_y + rate_uv + vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0); *returndist = dist_y + dist_uv; if (cpi->sf.tx_size_search_method == USE_FULL_RD) for (i = 0; i < TX_MODES; i++) { if (tx_cache[i] < INT64_MAX && tx_cache[cm->tx_mode] < INT64_MAX) ctx->tx_rd_diff[i] = tx_cache[i] - tx_cache[cm->tx_mode]; else ctx->tx_rd_diff[i] = 0; } } ctx->mic = *xd->mi_8x8[0]; } 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; MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi; const struct segmentation *const seg = &cm->seg; const BLOCK_SIZE block_size = get_plane_block_size(bsize, &xd->plane[0]); MB_PREDICTION_MODE this_mode; 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]; int_mv single_newmv[MAX_REF_FRAMES] = { { 0 } }; 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 = { 0 }; int mode_index, best_mode_index = 0; unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES]; vp9_prob comp_mode_p; int64_t best_intra_rd = INT64_MAX; int64_t best_inter_rd = INT64_MAX; MB_PREDICTION_MODE best_intra_mode = DC_PRED; MV_REFERENCE_FRAME best_inter_ref_frame = LAST_FRAME; INTERP_FILTER tmp_best_filter = SWITCHABLE; int rate_uv_intra[TX_SIZES], rate_uv_tokenonly[TX_SIZES]; int64_t dist_uv[TX_SIZES]; int skip_uv[TX_SIZES]; MB_PREDICTION_MODE mode_uv[TX_SIZES]; int64_t mode_distortions[MB_MODE_COUNT] = {-1}; int intra_cost_penalty = 20 * vp9_dc_quant(cm->base_qindex, cm->y_dc_delta_q); const int bws = num_8x8_blocks_wide_lookup[bsize] / 2; const int bhs = num_8x8_blocks_high_lookup[bsize] / 2; int best_skip2 = 0; int mode_skip_mask = 0; int mode_skip_start = cpi->sf.mode_skip_start + 1; const int *const rd_threshes = cpi->rd_threshes[segment_id][bsize]; const int *const rd_thresh_freq_fact = cpi->rd_thresh_freq_fact[bsize]; const int mode_search_skip_flags = cpi->sf.mode_search_skip_flags; const int intra_y_mode_mask = cpi->sf.intra_y_mode_mask[max_txsize_lookup[bsize]]; int disable_inter_mode_mask = cpi->sf.disable_inter_mode_mask[bsize]; x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH; estimate_ref_frame_costs(cpi, 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; *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]) { vp9_setup_buffer_inter(cpi, x, tile, ref_frame, block_size, mi_row, mi_col, frame_mv[NEARESTMV], frame_mv[NEARMV], yv12_mb); } frame_mv[NEWMV][ref_frame].as_int = INVALID_MV; frame_mv[ZEROMV][ref_frame].as_int = 0; } for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) { // All modes from vp9_mode_order that use this frame as any ref static const int ref_frame_mask_all[] = { 0x0, 0x123291, 0x25c444, 0x39b722 }; // Fixed mv modes (NEARESTMV, NEARMV, ZEROMV) from vp9_mode_order that use // this frame as their primary ref static const int ref_frame_mask_fixedmv[] = { 0x0, 0x121281, 0x24c404, 0x080102 }; if (!(cpi->ref_frame_flags & flag_list[ref_frame])) { // Skip modes for missing references mode_skip_mask |= ref_frame_mask_all[ref_frame]; } else if (cpi->sf.reference_masking) { for (i = LAST_FRAME; i <= ALTREF_FRAME; ++i) { // Skip fixed mv modes for poor references if ((x->pred_mv_sad[ref_frame] >> 2) > x->pred_mv_sad[i]) { mode_skip_mask |= ref_frame_mask_fixedmv[ref_frame]; break; } } } // If the segment reference frame feature is enabled.... // then do nothing if the current ref frame is not allowed.. if (vp9_segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME) && vp9_get_segdata(seg, segment_id, SEG_LVL_REF_FRAME) != (int)ref_frame) { mode_skip_mask |= ref_frame_mask_all[ref_frame]; } } // If the segment skip feature is enabled.... // then do nothing if the current mode is not allowed.. if (vp9_segfeature_active(seg, segment_id, SEG_LVL_SKIP)) { const int inter_non_zero_mode_mask = 0x1F7F7; mode_skip_mask |= inter_non_zero_mode_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)) { const int altref_zero_mask = ~((1 << THR_NEARESTA) | (1 << THR_NEARA) | (1 << THR_ZEROA)); mode_skip_mask |= altref_zero_mask; if (frame_mv[NEARMV][ALTREF_FRAME].as_int != 0) mode_skip_mask |= (1 << THR_NEARA); if (frame_mv[NEARESTMV][ALTREF_FRAME].as_int != 0) mode_skip_mask |= (1 << THR_NEARESTA); } } // TODO(JBB): This is to make up for the fact that we don't have sad // functions that work when the block size reads outside the umv. We // should fix this either by making the motion search just work on // a representative block in the boundary ( first ) and then implement a // function that does sads when inside the border.. if ((mi_row + bhs) > cm->mi_rows || (mi_col + bws) > cm->mi_cols) { const int new_modes_mask = (1 << THR_NEWMV) | (1 << THR_NEWG) | (1 << THR_NEWA) | (1 << THR_COMP_NEWLA) | (1 << THR_COMP_NEWGA); mode_skip_mask |= new_modes_mask; } if (bsize > cpi->sf.max_intra_bsize) { mode_skip_mask |= 0xFF30808; } if (!x->in_active_map) { int mode_index; assert(cpi->ref_frame_flags & VP9_LAST_FLAG); if (frame_mv[NEARESTMV][LAST_FRAME].as_int == 0) mode_index = THR_NEARESTMV; else if (frame_mv[NEARMV][LAST_FRAME].as_int == 0) mode_index = THR_NEARMV; else mode_index = THR_ZEROMV; mode_skip_mask = ~(1 << mode_index); mode_skip_start = MAX_MODES; disable_inter_mode_mask = 0; } 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; // 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) { switch (vp9_mode_order[best_mode_index].ref_frame[0]) { case INTRA_FRAME: break; case LAST_FRAME: mode_skip_mask |= LAST_FRAME_MODE_MASK; break; case GOLDEN_FRAME: mode_skip_mask |= GOLDEN_FRAME_MODE_MASK; break; case ALTREF_FRAME: mode_skip_mask |= ALT_REF_MODE_MASK; break; case NONE: case MAX_REF_FRAMES: assert(0 && "Invalid Reference frame"); } } if (mode_skip_mask & (1 << mode_index)) continue; // Test best rd so far against threshold for trying this mode. if (best_rd < ((int64_t)rd_threshes[mode_index] * rd_thresh_freq_fact[mode_index] >> 5) || rd_threshes[mode_index] == INT_MAX) continue; this_mode = vp9_mode_order[mode_index].mode; ref_frame = vp9_mode_order[mode_index].ref_frame[0]; if (ref_frame != INTRA_FRAME && disable_inter_mode_mask & (1 << INTER_OFFSET(this_mode))) continue; second_ref_frame = vp9_mode_order[mode_index].ref_frame[1]; comp_pred = second_ref_frame > INTRA_FRAME; if (comp_pred) { if ((mode_search_skip_flags & FLAG_SKIP_COMP_BESTINTRA) && vp9_mode_order[best_mode_index].ref_frame[0] == INTRA_FRAME) continue; if ((mode_search_skip_flags & FLAG_SKIP_COMP_REFMISMATCH) && ref_frame != best_inter_ref_frame && second_ref_frame != best_inter_ref_frame) continue; mode_excluded = cm->reference_mode == SINGLE_REFERENCE; } else { if (ref_frame != INTRA_FRAME) mode_excluded = cm->reference_mode == COMPOUND_REFERENCE; } if (ref_frame == INTRA_FRAME) { if (!(intra_y_mode_mask & (1 << this_mode))) continue; if (this_mode != DC_PRED) { // Disable intra modes other than DC_PRED for blocks with low variance // Threshold for intra skipping based on source variance // TODO(debargha): Specialize the threshold for super block sizes const unsigned int skip_intra_var_thresh = 64; if ((mode_search_skip_flags & FLAG_SKIP_INTRA_LOWVAR) && x->source_variance < skip_intra_var_thresh) continue; // Only search the oblique modes if the best so far is // one of the neighboring directional modes if ((mode_search_skip_flags & FLAG_SKIP_INTRA_BESTINTER) && (this_mode >= D45_PRED && this_mode <= TM_PRED)) { if (vp9_mode_order[best_mode_index].ref_frame[0] > INTRA_FRAME) continue; } if (mode_search_skip_flags & FLAG_SKIP_INTRA_DIRMISMATCH) { if (conditional_skipintra(this_mode, best_intra_mode)) continue; } } } else { // TODO(aconverse): Find out if this is still productive then clean up or // remove // if we're near/nearest and mv == 0,0, compare to zeromv if (x->in_active_map && !(disable_inter_mode_mask & (1 << INTER_OFFSET(ZEROMV))) && (this_mode == NEARMV || this_mode == NEARESTMV || this_mode == ZEROMV) && frame_mv[this_mode][ref_frame].as_int == 0 && !vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP) && (!comp_pred || frame_mv[this_mode][second_ref_frame].as_int == 0)) { int rfc = mbmi->mode_context[ref_frame]; 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) continue; } else if (this_mode == NEARESTMV) { if (c2 > c3) continue; } else { assert(this_mode == ZEROMV); if (!comp_pred) { if ((c3 >= c2 && frame_mv[NEARESTMV][ref_frame].as_int == 0) || (c3 >= c1 && frame_mv[NEARMV][ref_frame].as_int == 0)) continue; } else { if ((c3 >= c2 && frame_mv[NEARESTMV][ref_frame].as_int == 0 && frame_mv[NEARESTMV][second_ref_frame].as_int == 0) || (c3 >= c1 && frame_mv[NEARMV][ref_frame].as_int == 0 && frame_mv[NEARMV][second_ref_frame].as_int == 0)) continue; } } } } mbmi->mode = this_mode; mbmi->uv_mode = x->in_active_map ? DC_PRED : this_mode; 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); xd->interp_kernel = vp9_get_interp_kernel(mbmi->interp_filter); // 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; #ifdef MODE_TEST_HIT_STATS // TEST/DEBUG CODE // Keep a rcord of the number of test hits at each size cpi->mode_test_hits[bsize]++; #endif if (ref_frame == INTRA_FRAME) { TX_SIZE uv_tx; intra_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); 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 + x->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, tile, bsize, tx_cache, &rate2, &distortion2, &skippable, &rate_y, &distortion_y, &rate_uv, &distortion_uv, &mode_excluded, &disable_skip, &tmp_best_filter, frame_mv, mi_row, mi_col, single_newmv, &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) { // Test for the condition where skip block will be activated // because there are no non zero coefficients and make any // necessary adjustment for rate. Ignore if skip is coded at // segment level as the cost wont have been added in. // Is Mb level skip allowed (i.e. not coded at segment level). const int mb_skip_allowed = !vp9_segfeature_active(seg, segment_id, SEG_LVL_SKIP); if (skippable) { // Back out the coefficient coding costs rate2 -= (rate_y + rate_uv); // for best yrd calculation rate_uv = 0; if (mb_skip_allowed) { int prob_skip_cost; // Cost the skip mb case vp9_prob skip_prob = vp9_get_skip_prob(cm, xd); if (skip_prob) { prob_skip_cost = vp9_cost_bit(skip_prob, 1); rate2 += prob_skip_cost; } } } else if (mb_skip_allowed && 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 if (mb_skip_allowed) { // Add in the cost of the no skip flag. rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0); } // Calculate the final RD estimate for this mode. this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2); } if (ref_frame == INTRA_FRAME) { // Keep record of best intra rd if (this_rd < best_intra_rd) { best_intra_rd = this_rd; best_intra_mode = mbmi->mode; } } else { // Keep record of best inter rd with single reference if (!comp_pred && !mode_excluded && this_rd < best_inter_rd) { best_inter_rd = this_rd; best_inter_ref_frame = ref_frame; } } if (!disable_skip && ref_frame == INTRA_FRAME) { for (i = 0; i < REFERENCE_MODES; ++i) best_pred_rd[i] = MIN(best_pred_rd[i], this_rd); for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) best_filter_rd[i] = MIN(best_filter_rd[i], this_rd); } // Store the respective mode distortions for later use. if (mode_distortions[this_mode] == -1 || distortion2 < mode_distortions[this_mode]) { mode_distortions[this_mode] = distortion2; } // 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; } *returnrate = rate2; *returndistortion = distortion2; best_rd = this_rd; best_mbmode = *mbmi; best_skip2 = this_skip2; if (!x->select_txfm_size) swap_block_ptr(x, ctx, 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 = cpi->rd_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 (cpi->rd_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 = cpi->mask_filter_rd - ref + 10; else adj_rd = cpi->rd_filter_cache[i] - ref; adj_rd += this_rd; best_filter_rd[i] = MIN(best_filter_rd[i], adj_rd); } } } /* keep record of best txfm size */ if (bsize < BLOCK_32X32) { if (bsize < BLOCK_16X16) tx_cache[ALLOW_16X16] = tx_cache[ALLOW_8X8]; tx_cache[ALLOW_32X32] = tx_cache[ALLOW_16X16]; } if (!mode_excluded && this_rd != INT64_MAX) { for (i = 0; i < TX_MODES && tx_cache[i] < INT64_MAX; i++) { int64_t adj_rd = INT64_MAX; adj_rd = this_rd + tx_cache[i] - tx_cache[cm->tx_mode]; if (adj_rd < best_tx_rd[i]) best_tx_rd[i] = adj_rd; } } if (early_term) break; if (x->skip && !comp_pred) break; } if (best_rd >= best_rd_so_far) return INT64_MAX; // If we used an estimate for the uv intra rd in the loop above... if (cpi->sf.use_uv_intra_rd_estimate) { // Do Intra UV best rd mode selection if best mode choice above was intra. if (vp9_mode_order[best_mode_index].ref_frame[0] == INTRA_FRAME) { TX_SIZE uv_tx_size; *mbmi = best_mbmode; uv_tx_size = get_uv_tx_size(mbmi); 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)); // 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. if (cpi->sf.adaptive_rd_thresh) { for (mode_index = 0; mode_index < MAX_MODES; ++mode_index) { int *const fact = &cpi->rd_thresh_freq_fact[bsize][mode_index]; if (mode_index == best_mode_index) { *fact -= (*fact >> 3); } else { *fact = MIN(*fact + RD_THRESH_INC, cpi->sf.adaptive_rd_thresh * RD_THRESH_MAX_FACT); } } } // 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); } if (!x->in_active_map) { assert(mbmi->ref_frame[0] == LAST_FRAME); assert(mbmi->ref_frame[1] == NONE); assert(mbmi->mode == NEARESTMV || mbmi->mode == NEARMV || mbmi->mode == ZEROMV); assert(frame_mv[mbmi->mode][LAST_FRAME].as_int == 0); assert(mbmi->mode == mbmi->uv_mode); } set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]); store_coding_context(x, ctx, best_mode_index, &mbmi->ref_mvs[mbmi->ref_frame[0]][0], &mbmi->ref_mvs[mbmi->ref_frame[1] < 0 ? 0 : mbmi->ref_frame[1]][0], best_pred_diff, best_tx_diff, best_filter_diff); return best_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 *cm = &cpi->common; MACROBLOCKD *xd = &x->e_mbd; MB_MODE_INFO *mbmi = &xd->mi_8x8[0]->mbmi; const struct segmentation *seg = &cm->seg; const BLOCK_SIZE block_size = get_plane_block_size(bsize, &xd->plane[0]); 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 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 = { 0 }; int mode_index, best_mode_index = 0; unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES]; vp9_prob comp_mode_p; int64_t best_inter_rd = INT64_MAX; MV_REFERENCE_FRAME best_inter_ref_frame = LAST_FRAME; INTERP_FILTER tmp_best_filter = SWITCHABLE; int rate_uv_intra[TX_SIZES], rate_uv_tokenonly[TX_SIZES]; int64_t dist_uv[TX_SIZES]; int skip_uv[TX_SIZES]; MB_PREDICTION_MODE mode_uv[TX_SIZES] = { 0 }; int intra_cost_penalty = 20 * vp9_dc_quant(cm->base_qindex, cm->y_dc_delta_q); int_mv seg_mvs[4][MAX_REF_FRAMES]; b_mode_info best_bmodes[4]; int best_skip2 = 0; int ref_frame_mask = 0; int mode_skip_mask = 0; x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH; vpx_memset(x->zcoeff_blk[TX_4X4], 0, 4); 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(cpi, 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; *returnrate = INT_MAX; for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ref_frame++) { if (cpi->ref_frame_flags & flag_list[ref_frame]) { vp9_setup_buffer_inter(cpi, x, tile, ref_frame, block_size, 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 && cpi->sf.reference_masking; ++ref_frame) { int i; for (i = LAST_FRAME; i <= ALTREF_FRAME; ++i) { if ((x->pred_mv_sad[ref_frame] >> 1) > x->pred_mv_sad[i]) { ref_frame_mask |= (1 << ref_frame); break; } } } for (mode_index = 0; mode_index < MAX_REFS; ++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 = INT_MAX; int early_term = 0; for (i = 0; i < TX_MODES; ++i) tx_cache[i] = INT64_MAX; x->skip = 0; ref_frame = vp9_ref_order[mode_index].ref_frame[0]; second_ref_frame = vp9_ref_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 > 2 && cpi->sf.mode_skip_start < MAX_MODES) { if (mode_index == 3) { switch (vp9_ref_order[best_mode_index].ref_frame[0]) { case INTRA_FRAME: mode_skip_mask = 0; break; case LAST_FRAME: mode_skip_mask = 0x0010; break; case GOLDEN_FRAME: mode_skip_mask = 0x0008; break; case ALTREF_FRAME: mode_skip_mask = 0x0000; break; case NONE: case MAX_REF_FRAMES: assert(0 && "Invalid Reference frame"); } } if (mode_skip_mask & (1 << mode_index)) continue; } // Test best rd so far against threshold for trying this mode. if ((best_rd < ((int64_t)cpi->rd_thresh_sub8x8[segment_id][bsize][mode_index] * cpi->rd_thresh_freq_sub8x8[bsize][mode_index] >> 5)) || cpi->rd_thresh_sub8x8[segment_id][bsize][mode_index] == INT_MAX) 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 ((second_ref_frame > INTRA_FRAME) && vp9_segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME)) continue; mbmi->ref_frame[0] = ref_frame; mbmi->ref_frame[1] = second_ref_frame; if (!(ref_frame == INTRA_FRAME || (cpi->ref_frame_flags & flag_list[ref_frame]))) { continue; } if (!(second_ref_frame == NONE || (cpi->ref_frame_flags & flag_list[second_ref_frame]))) { continue; } comp_pred = second_ref_frame > INTRA_FRAME; if (comp_pred) { if (cpi->sf.mode_search_skip_flags & FLAG_SKIP_COMP_BESTINTRA) if (vp9_ref_order[best_mode_index].ref_frame[0] == INTRA_FRAME) continue; if (cpi->sf.mode_search_skip_flags & FLAG_SKIP_COMP_REFMISMATCH) if (ref_frame != best_inter_ref_frame && second_ref_frame != best_inter_ref_frame) continue; } // TODO(jingning, jkoleszar): scaling reference frame not supported for // sub8x8 blocks. if (ref_frame > 0 && vp9_is_scaled(&cm->frame_refs[ref_frame - 1].sf)) continue; if (second_ref_frame > 0 && vp9_is_scaled(&cm->frame_refs[second_ref_frame - 1].sf)) continue; set_ref_ptrs(cm, xd, ref_frame, second_ref_frame); mbmi->uv_mode = DC_PRED; // 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; xd->interp_kernel = vp9_get_interp_kernel(mbmi->interp_filter); if (comp_pred) { if (!(cpi->ref_frame_flags & flag_list[second_ref_frame])) continue; mode_excluded = mode_excluded ? mode_excluded : cm->reference_mode == SINGLE_REFERENCE; } else { if (ref_frame != INTRA_FRAME && second_ref_frame != INTRA_FRAME) { mode_excluded = mode_excluded ? mode_excluded : cm->reference_mode == COMPOUND_REFERENCE; } } // 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 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; // If the segment skip feature is enabled.... // then do nothing if the current mode is not allowed.. } else if (vp9_segfeature_active(seg, segment_id, SEG_LVL_SKIP) && ref_frame != INTRA_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; } #ifdef MODE_TEST_HIT_STATS // TEST/DEBUG CODE // Keep a rcord of the number of test hits at each size cpi->mode_test_hits[bsize]++; #endif if (ref_frame == INTRA_FRAME) { int rate; mbmi->tx_size = TX_4X4; 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[TX_4X4] == INT_MAX) { choose_intra_uv_mode(cpi, ctx, bsize, TX_4X4, &rate_uv_intra[TX_4X4], &rate_uv_tokenonly[TX_4X4], &dist_uv[TX_4X4], &skip_uv[TX_4X4], &mode_uv[TX_4X4]); } rate2 += rate_uv_intra[TX_4X4]; rate_uv = rate_uv_tokenonly[TX_4X4]; distortion2 += dist_uv[TX_4X4]; distortion_uv = dist_uv[TX_4X4]; mbmi->uv_mode = mode_uv[TX_4X4]; tx_cache[ONLY_4X4] = RDCOST(x->rdmult, x->rddiv, rate2, distortion2); for (i = 0; i < TX_MODES; ++i) tx_cache[i] = tx_cache[ONLY_4X4]; } 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) ? cpi->rd_thresh_sub8x8[segment_id][bsize][THR_LAST] : cpi->rd_thresh_sub8x8[segment_id][bsize][THR_ALTR]; this_rd_thresh = (ref_frame == GOLDEN_FRAME) ? cpi->rd_thresh_sub8x8[segment_id][bsize][THR_GOLD] : this_rd_thresh; xd->mi_8x8[0]->mbmi.tx_size = TX_4X4; cpi->mask_filter_rd = 0; for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i) cpi->rd_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; xd->interp_kernel = vp9_get_interp_kernel(mbmi->interp_filter); tmp_rd = rd_pick_best_mbsegmentation(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 = get_switchable_rate(x); rs_rd = RDCOST(x->rdmult, x->rddiv, rs, 0); cpi->rd_filter_cache[switchable_filter_index] = tmp_rd; cpi->rd_filter_cache[SWITCHABLE_FILTERS] = MIN(cpi->rd_filter_cache[SWITCHABLE_FILTERS], tmp_rd + rs_rd); if (cm->interp_filter == SWITCHABLE) tmp_rd += rs_rd; cpi->mask_filter_rd = MAX(cpi->mask_filter_rd, 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_8x8[0]->bmi[i]; x->zcoeff_blk[TX_4X4][i] = !x->plane[0].eobs[i]; } pred_exists = 1; if (switchable_filter_index == 0 && cpi->sf.use_rd_breakout && best_rd < INT64_MAX) { if (tmp_best_rdu / 2 > best_rd) { // skip searching the other filters if the first is // already substantially larger than the best so far tmp_best_filter = mbmi->interp_filter; tmp_best_rdu = INT64_MAX; break; } } } } // switchable_filter_index loop } } if (tmp_best_rdu == INT64_MAX && pred_exists) continue; mbmi->interp_filter = (cm->interp_filter == SWITCHABLE ? tmp_best_filter : cm->interp_filter); xd->interp_kernel = vp9_get_interp_kernel(mbmi->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_mbsegmentation(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_8x8[0]->bmi[i] = tmp_best_bmodes[i]; } rate2 += rate; distortion2 += distortion; if (cm->interp_filter == SWITCHABLE) rate2 += get_switchable_rate(x); 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; tx_cache[ONLY_4X4] = RDCOST(x->rdmult, x->rddiv, rate2, distortion2); for (i = 0; i < TX_MODES; ++i) tx_cache[i] = tx_cache[ONLY_4X4]; } } 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) { // Test for the condition where skip block will be activated // because there are no non zero coefficients and make any // necessary adjustment for rate. Ignore if skip is coded at // segment level as the cost wont have been added in. // Is Mb level skip allowed (i.e. not coded at segment level). const int mb_skip_allowed = !vp9_segfeature_active(seg, segment_id, SEG_LVL_SKIP); if (mb_skip_allowed && 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 if (mb_skip_allowed) { // Add in the cost of the no skip flag. rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0); } // Calculate the final RD estimate for this mode. this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2); } // Keep record of best inter rd with single reference if (is_inter_block(&xd->mi_8x8[0]->mbmi) && !has_second_ref(&xd->mi_8x8[0]->mbmi) && !mode_excluded && this_rd < best_inter_rd) { best_inter_rd = this_rd; best_inter_ref_frame = ref_frame; } if (!disable_skip && ref_frame == INTRA_FRAME) { for (i = 0; i < REFERENCE_MODES; ++i) best_pred_rd[i] = MIN(best_pred_rd[i], this_rd); for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) best_filter_rd[i] = MIN(best_filter_rd[i], this_rd); } // Did this mode help.. i.e. is it the new best mode if (this_rd < best_rd || x->skip) { if (!mode_excluded) { int max_plane = MAX_MB_PLANE; // Note index of best mode so far best_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; } *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_txfm_size) swap_block_ptr(x, ctx, max_plane); vpx_memcpy(ctx->zcoeff_blk, x->zcoeff_blk[mbmi->tx_size], sizeof(uint8_t) * ctx->num_4x4_blk); for (i = 0; i < 4; i++) best_bmodes[i] = xd->mi_8x8[0]->bmi[i]; // TODO(debargha): enhance this test with a better distortion prediction // based on qp, activity mask and history if ((cpi->sf.mode_search_skip_flags & FLAG_EARLY_TERMINATE) && (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 (second_ref_frame <= INTRA_FRAME && single_rd < best_pred_rd[SINGLE_REFERENCE]) { best_pred_rd[SINGLE_REFERENCE] = single_rd; } else if (second_ref_frame > INTRA_FRAME && 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 = cpi->rd_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 (cpi->rd_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 = cpi->mask_filter_rd - ref + 10; else adj_rd = cpi->rd_filter_cache[i] - ref; adj_rd += this_rd; best_filter_rd[i] = MIN(best_filter_rd[i], adj_rd); } } /* keep record of best txfm size */ if (bsize < BLOCK_32X32) { if (bsize < BLOCK_16X16) { tx_cache[ALLOW_8X8] = tx_cache[ONLY_4X4]; 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; if (ref_frame > INTRA_FRAME) adj_rd = this_rd + tx_cache[i] - tx_cache[cm->tx_mode]; else adj_rd = this_rd; if (adj_rd < best_tx_rd[i]) best_tx_rd[i] = adj_rd; } } if (early_term) break; if (x->skip && !comp_pred) break; } if (best_rd >= best_rd_so_far) return INT64_MAX; // If we used an estimate for the uv intra rd in the loop above... if (cpi->sf.use_uv_intra_rd_estimate) { // Do Intra UV best rd mode selection if best mode choice above was intra. if (vp9_ref_order[best_mode_index].ref_frame[0] == INTRA_FRAME) { TX_SIZE uv_tx_size; *mbmi = best_mbmode; uv_tx_size = get_uv_tx_size(mbmi); 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], BLOCK_8X8, uv_tx_size); } } if (best_rd == INT64_MAX && bsize < BLOCK_8X8) { *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)); // 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. if (cpi->sf.adaptive_rd_thresh) { for (mode_index = 0; mode_index < MAX_REFS; ++mode_index) { int *const fact = &cpi->rd_thresh_freq_sub8x8[bsize][mode_index]; if (mode_index == best_mode_index) { *fact -= (*fact >> 3); } else { *fact = MIN(*fact + RD_THRESH_INC, cpi->sf.adaptive_rd_thresh * RD_THRESH_MAX_FACT); } } } // macroblock modes *mbmi = best_mbmode; x->skip |= best_skip2; if (!is_inter_block(&best_mbmode)) { for (i = 0; i < 4; i++) xd->mi_8x8[0]->bmi[i].as_mode = best_bmodes[i].as_mode; } else { for (i = 0; i < 4; ++i) vpx_memcpy(&xd->mi_8x8[0]->bmi[i], &best_bmodes[i], sizeof(b_mode_info)); mbmi->mv[0].as_int = xd->mi_8x8[0]->bmi[3].as_mv[0].as_int; mbmi->mv[1].as_int = xd->mi_8x8[0]->bmi[3].as_mv[1].as_int; } for (i = 0; i < REFERENCE_MODES; ++i) { if (best_pred_rd[i] == INT64_MAX) best_pred_diff[i] = INT_MIN; else best_pred_diff[i] = best_rd - best_pred_rd[i]; } if (!x->skip) { for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) { if (best_filter_rd[i] == INT64_MAX) best_filter_diff[i] = 0; else best_filter_diff[i] = best_rd - best_filter_rd[i]; } if (cm->interp_filter == SWITCHABLE) assert(best_filter_diff[SWITCHABLE_FILTERS] == 0); } else { vp9_zero(best_filter_diff); } if (!x->skip) { 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_tx_diff); } set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]); store_coding_context(x, ctx, best_mode_index, &mbmi->ref_mvs[mbmi->ref_frame[0]][0], &mbmi->ref_mvs[mbmi->ref_frame[1] < 0 ? 0 : mbmi->ref_frame[1]][0], best_pred_diff, best_tx_diff, best_filter_diff); return best_rd; }