/* * 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/common/vp9_pragmas.h" #include "vp9/encoder/vp9_tokenize.h" #include "vp9/encoder/vp9_treewriter.h" #include "vp9/encoder/vp9_onyx_int.h" #include "vp9/encoder/vp9_modecosts.h" #include "vp9/encoder/vp9_encodeintra.h" #include "vp9/common/vp9_entropymode.h" #include "vp9/common/vp9_reconinter.h" #include "vp9/common/vp9_reconintra.h" #include "vp9/common/vp9_findnearmv.h" #include "vp9/common/vp9_quant_common.h" #include "vp9/encoder/vp9_encodemb.h" #include "vp9/encoder/vp9_quantize.h" #include "vp9/encoder/vp9_variance.h" #include "vp9/encoder/vp9_mcomp.h" #include "vp9/encoder/vp9_rdopt.h" #include "vp9/encoder/vp9_ratectrl.h" #include "vpx_mem/vpx_mem.h" #include "vp9/common/vp9_systemdependent.h" #include "vp9/encoder/vp9_encodemv.h" #include "vp9/common/vp9_seg_common.h" #include "vp9/common/vp9_pred_common.h" #include "vp9/common/vp9_entropy.h" #include "vp9_rtcd.h" #include "vp9/common/vp9_mvref_common.h" #include "vp9/common/vp9_common.h" #define INVALID_MV 0x80008000 /* Factor to weigh the rate for switchable interp filters */ #define SWITCHABLE_INTERP_RATE_FACTOR 1 const MODE_DEFINITION vp9_mode_order[MAX_MODES] = { {ZEROMV, LAST_FRAME, NONE}, {DC_PRED, INTRA_FRAME, NONE}, {NEARESTMV, LAST_FRAME, NONE}, {NEARMV, LAST_FRAME, NONE}, {ZEROMV, GOLDEN_FRAME, NONE}, {NEARESTMV, GOLDEN_FRAME, NONE}, {ZEROMV, ALTREF_FRAME, NONE}, {NEARESTMV, ALTREF_FRAME, NONE}, {NEARMV, GOLDEN_FRAME, NONE}, {NEARMV, ALTREF_FRAME, NONE}, {V_PRED, INTRA_FRAME, NONE}, {H_PRED, INTRA_FRAME, NONE}, {D45_PRED, INTRA_FRAME, NONE}, {D135_PRED, INTRA_FRAME, NONE}, {D117_PRED, INTRA_FRAME, NONE}, {D153_PRED, INTRA_FRAME, NONE}, {D27_PRED, INTRA_FRAME, NONE}, {D63_PRED, INTRA_FRAME, NONE}, {TM_PRED, INTRA_FRAME, NONE}, {NEWMV, LAST_FRAME, NONE}, {NEWMV, GOLDEN_FRAME, NONE}, {NEWMV, ALTREF_FRAME, NONE}, {SPLITMV, LAST_FRAME, NONE}, {SPLITMV, GOLDEN_FRAME, NONE}, {SPLITMV, ALTREF_FRAME, NONE}, {I4X4_PRED, INTRA_FRAME, NONE}, /* compound prediction modes */ {ZEROMV, LAST_FRAME, GOLDEN_FRAME}, {NEARESTMV, LAST_FRAME, GOLDEN_FRAME}, {NEARMV, LAST_FRAME, GOLDEN_FRAME}, {ZEROMV, ALTREF_FRAME, LAST_FRAME}, {NEARESTMV, ALTREF_FRAME, LAST_FRAME}, {NEARMV, ALTREF_FRAME, LAST_FRAME}, {ZEROMV, GOLDEN_FRAME, ALTREF_FRAME}, {NEARESTMV, GOLDEN_FRAME, ALTREF_FRAME}, {NEARMV, GOLDEN_FRAME, ALTREF_FRAME}, {NEWMV, LAST_FRAME, GOLDEN_FRAME}, {NEWMV, ALTREF_FRAME, LAST_FRAME }, {NEWMV, GOLDEN_FRAME, ALTREF_FRAME}, {SPLITMV, LAST_FRAME, GOLDEN_FRAME}, {SPLITMV, ALTREF_FRAME, LAST_FRAME }, {SPLITMV, GOLDEN_FRAME, ALTREF_FRAME}, }; static void fill_token_costs(vp9_coeff_count *c, vp9_coeff_probs *p, TX_SIZE tx_size) { int i, j, k, l; for (i = 0; i < BLOCK_TYPES; i++) for (j = 0; j < REF_TYPES; j++) for (k = 0; k < COEF_BANDS; k++) for (l = 0; l < PREV_COEF_CONTEXTS; l++) vp9_cost_tokens_skip((int *)c[i][j][k][l], p[i][j][k][l], vp9_coef_tree); } static 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++) { sad_per_bit16lut[i] = (int)((0.0418 * vp9_convert_qindex_to_q(i)) + 2.4107); sad_per_bit4lut[i] = (int)(0.063 * vp9_convert_qindex_to_q(i) + 2.742); } } static int compute_rd_mult(int qindex) { const int q = vp9_dc_quant(qindex, 0); return (11 * q * q) >> 2; } void vp9_initialize_me_consts(VP9_COMP *cpi, int qindex) { cpi->mb.sadperbit16 = sad_per_bit16lut[qindex]; cpi->mb.sadperbit4 = sad_per_bit4lut[qindex]; } void vp9_initialize_rd_consts(VP9_COMP *cpi, int qindex) { int q, i; vp9_clear_system_state(); // __asm emms; // Further tests required to see if optimum is different // for key frames, golden frames and arf frames. // if (cpi->common.refresh_golden_frame || // cpi->common.refresh_alt_ref_frame) qindex = clamp(qindex, 0, MAXQ); cpi->RDMULT = compute_rd_mult(qindex); if (cpi->pass == 2 && (cpi->common.frame_type != KEY_FRAME)) { if (cpi->twopass.next_iiratio > 31) cpi->RDMULT += (cpi->RDMULT * rd_iifactor[31]) >> 4; else cpi->RDMULT += (cpi->RDMULT * rd_iifactor[cpi->twopass.next_iiratio]) >> 4; } cpi->mb.errorperbit = cpi->RDMULT >> 6; cpi->mb.errorperbit += (cpi->mb.errorperbit == 0); vp9_set_speed_features(cpi); q = (int)pow(vp9_dc_quant(qindex, 0) >> 2, 1.25); q <<= 2; if (q < 8) q = 8; if (cpi->RDMULT > 1000) { cpi->RDDIV = 1; cpi->RDMULT /= 100; for (i = 0; i < MAX_MODES; i++) { if (cpi->sf.thresh_mult[i] < INT_MAX) { cpi->rd_threshes[i] = cpi->sf.thresh_mult[i] * q / 100; } else { cpi->rd_threshes[i] = INT_MAX; } cpi->rd_baseline_thresh[i] = cpi->rd_threshes[i]; } } else { cpi->RDDIV = 100; for (i = 0; i < MAX_MODES; i++) { if (cpi->sf.thresh_mult[i] < (INT_MAX / q)) { cpi->rd_threshes[i] = cpi->sf.thresh_mult[i] * q; } else { cpi->rd_threshes[i] = INT_MAX; } cpi->rd_baseline_thresh[i] = cpi->rd_threshes[i]; } } fill_token_costs(cpi->mb.token_costs[TX_4X4], cpi->common.fc.coef_probs_4x4, TX_4X4); fill_token_costs(cpi->mb.token_costs[TX_8X8], cpi->common.fc.coef_probs_8x8, TX_8X8); fill_token_costs(cpi->mb.token_costs[TX_16X16], cpi->common.fc.coef_probs_16x16, TX_16X16); fill_token_costs(cpi->mb.token_costs[TX_32X32], cpi->common.fc.coef_probs_32x32, TX_32X32); for (i = 0; i < NUM_PARTITION_CONTEXTS; i++) vp9_cost_tokens(cpi->mb.partition_cost[i], cpi->common.fc.partition_prob[i], vp9_partition_tree); /*rough estimate for costing*/ cpi->common.kf_ymode_probs_index = cpi->common.base_qindex >> 4; vp9_init_mode_costs(cpi); if (cpi->common.frame_type != KEY_FRAME) { vp9_build_nmv_cost_table( cpi->mb.nmvjointcost, cpi->mb.e_mbd.allow_high_precision_mv ? cpi->mb.nmvcost_hp : cpi->mb.nmvcost, &cpi->common.fc.nmvc, cpi->mb.e_mbd.allow_high_precision_mv, 1, 1); } } int vp9_block_error_c(int16_t *coeff, int16_t *dqcoeff, int block_size) { int i, error = 0; for (i = 0; i < block_size; i++) { int this_diff = coeff[i] - dqcoeff[i]; error += this_diff * this_diff; } return error; } static INLINE int cost_coeffs(VP9_COMMON *const cm, MACROBLOCK *mb, int plane, int block, PLANE_TYPE type, ENTROPY_CONTEXT *A, ENTROPY_CONTEXT *L, TX_SIZE tx_size, int y_blocks) { MACROBLOCKD *const xd = &mb->e_mbd; MB_MODE_INFO *mbmi = &xd->mode_info_context->mbmi; int pt; int c = 0; int cost = 0, pad; const int *scan, *nb; const int eob = xd->plane[plane].eobs[block]; const int16_t *qcoeff_ptr = BLOCK_OFFSET(xd->plane[plane].qcoeff, block, 16); const int ref = mbmi->ref_frame != INTRA_FRAME; unsigned int (*token_costs)[PREV_COEF_CONTEXTS][MAX_ENTROPY_TOKENS] = mb->token_costs[tx_size][type][ref]; ENTROPY_CONTEXT above_ec, left_ec; TX_TYPE tx_type = DCT_DCT; const int segment_id = xd->mode_info_context->mbmi.segment_id; vp9_prob (*coef_probs)[REF_TYPES][COEF_BANDS][PREV_COEF_CONTEXTS] [ENTROPY_NODES]; int seg_eob, default_eob; uint8_t token_cache[1024]; const uint8_t * band_translate; // Check for consistency of tx_size with mode info assert((!type && !plane) || (type && plane)); if (type == PLANE_TYPE_Y_WITH_DC) { assert(xd->mode_info_context->mbmi.txfm_size == tx_size); } else { TX_SIZE tx_size_uv = get_uv_tx_size(xd); assert(tx_size == tx_size_uv); } switch (tx_size) { case TX_4X4: { tx_type = (type == PLANE_TYPE_Y_WITH_DC) ? get_tx_type_4x4(xd, block) : DCT_DCT; above_ec = A[0] != 0; left_ec = L[0] != 0; coef_probs = cm->fc.coef_probs_4x4; seg_eob = 16; scan = get_scan_4x4(tx_type); band_translate = vp9_coefband_trans_4x4; break; } case TX_8X8: { const BLOCK_SIZE_TYPE sb_type = xd->mode_info_context->mbmi.sb_type; const int sz = 1 + b_width_log2(sb_type); const int x = block & ((1 << sz) - 1), y = block - x; TX_TYPE tx_type = (type == PLANE_TYPE_Y_WITH_DC) ? get_tx_type_8x8(xd, y + (x >> 1)) : DCT_DCT; above_ec = (A[0] + A[1]) != 0; left_ec = (L[0] + L[1]) != 0; scan = get_scan_8x8(tx_type); coef_probs = cm->fc.coef_probs_8x8; seg_eob = 64; band_translate = vp9_coefband_trans_8x8plus; break; } case TX_16X16: { const BLOCK_SIZE_TYPE sb_type = xd->mode_info_context->mbmi.sb_type; const int sz = 2 + b_width_log2(sb_type); const int x = block & ((1 << sz) - 1), y = block - x; TX_TYPE tx_type = (type == PLANE_TYPE_Y_WITH_DC) ? get_tx_type_16x16(xd, y + (x >> 2)) : DCT_DCT; scan = get_scan_16x16(tx_type); coef_probs = cm->fc.coef_probs_16x16; seg_eob = 256; above_ec = (A[0] + A[1] + A[2] + A[3]) != 0; left_ec = (L[0] + L[1] + L[2] + L[3]) != 0; band_translate = vp9_coefband_trans_8x8plus; break; } case TX_32X32: scan = vp9_default_zig_zag1d_32x32; coef_probs = cm->fc.coef_probs_32x32; seg_eob = 1024; above_ec = (A[0] + A[1] + A[2] + A[3] + A[4] + A[5] + A[6] + A[7]) != 0; left_ec = (L[0] + L[1] + L[2] + L[3] + L[4] + L[5] + L[6] + L[7]) != 0; band_translate = vp9_coefband_trans_8x8plus; break; default: abort(); break; } assert(eob <= seg_eob); pt = combine_entropy_contexts(above_ec, left_ec); nb = vp9_get_coef_neighbors_handle(scan, &pad); default_eob = seg_eob; if (vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP)) seg_eob = 0; /* sanity check to ensure that we do not have spurious non-zero q values */ if (eob < seg_eob) assert(qcoeff_ptr[scan[eob]] == 0); { for (c = 0; c < eob; c++) { int v = qcoeff_ptr[scan[c]]; int t = vp9_dct_value_tokens_ptr[v].token; int band = get_coef_band(band_translate, c); if (c) pt = vp9_get_coef_context(scan, nb, pad, token_cache, c, default_eob); cost += token_costs[band][pt][t] + vp9_dct_value_cost_ptr[v]; if (!c || token_cache[scan[c - 1]]) cost += vp9_cost_bit(coef_probs[type][ref][band][pt][0], 1); token_cache[scan[c]] = t; } if (c < seg_eob) { if (c) pt = vp9_get_coef_context(scan, nb, pad, token_cache, c, default_eob); cost += mb->token_costs[tx_size][type][ref] [get_coef_band(band_translate, c)] [pt][DCT_EOB_TOKEN]; } } // is eob first coefficient; for (pt = 0; pt < (1 << tx_size); pt++) { A[pt] = L[pt] = c > 0; } return cost; } static void choose_txfm_size_from_rd(VP9_COMP *cpi, MACROBLOCK *x, int (*r)[2], int *rate, int *d, int *distortion, int *s, int *skip, int64_t txfm_cache[NB_TXFM_MODES], TX_SIZE max_txfm_size) { VP9_COMMON *const cm = &cpi->common; MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mode_info_context->mbmi; vp9_prob skip_prob = vp9_get_pred_prob(cm, xd, PRED_MBSKIP); int64_t rd[TX_SIZE_MAX_SB][2]; int n, m; int s0, s1; for (n = TX_4X4; n <= max_txfm_size; n++) { r[n][1] = r[n][0]; for (m = 0; m <= n - (n == max_txfm_size); m++) { if (m == n) r[n][1] += vp9_cost_zero(cm->prob_tx[m]); else r[n][1] += vp9_cost_one(cm->prob_tx[m]); } } assert(skip_prob > 0); s0 = vp9_cost_bit(skip_prob, 0); s1 = vp9_cost_bit(skip_prob, 1); for (n = TX_4X4; n <= max_txfm_size; n++) { 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 (max_txfm_size == TX_32X32 && (cm->txfm_mode == ALLOW_32X32 || (cm->txfm_mode == TX_MODE_SELECT && rd[TX_32X32][1] < rd[TX_16X16][1] && rd[TX_32X32][1] < rd[TX_8X8][1] && rd[TX_32X32][1] < rd[TX_4X4][1]))) { mbmi->txfm_size = TX_32X32; } else if (max_txfm_size >= TX_16X16 && (cm->txfm_mode == ALLOW_16X16 || cm->txfm_mode == ALLOW_32X32 || (cm->txfm_mode == TX_MODE_SELECT && rd[TX_16X16][1] < rd[TX_8X8][1] && rd[TX_16X16][1] < rd[TX_4X4][1]))) { mbmi->txfm_size = TX_16X16; } else if (cm->txfm_mode == ALLOW_8X8 || cm->txfm_mode == ALLOW_16X16 || cm->txfm_mode == ALLOW_32X32 || (cm->txfm_mode == TX_MODE_SELECT && rd[TX_8X8][1] < rd[TX_4X4][1])) { mbmi->txfm_size = TX_8X8; } else { mbmi->txfm_size = TX_4X4; } *distortion = d[mbmi->txfm_size]; *rate = r[mbmi->txfm_size][cm->txfm_mode == TX_MODE_SELECT]; *skip = s[mbmi->txfm_size]; txfm_cache[ONLY_4X4] = rd[TX_4X4][0]; txfm_cache[ALLOW_8X8] = rd[TX_8X8][0]; txfm_cache[ALLOW_16X16] = rd[MIN(max_txfm_size, TX_16X16)][0]; txfm_cache[ALLOW_32X32] = rd[MIN(max_txfm_size, TX_32X32)][0]; if (max_txfm_size == TX_32X32 && rd[TX_32X32][1] < rd[TX_16X16][1] && rd[TX_32X32][1] < rd[TX_8X8][1] && rd[TX_32X32][1] < rd[TX_4X4][1]) txfm_cache[TX_MODE_SELECT] = rd[TX_32X32][1]; else if (max_txfm_size >= TX_16X16 && rd[TX_16X16][1] < rd[TX_8X8][1] && rd[TX_16X16][1] < rd[TX_4X4][1]) txfm_cache[TX_MODE_SELECT] = rd[TX_16X16][1]; else txfm_cache[TX_MODE_SELECT] = rd[TX_4X4][1] < rd[TX_8X8][1] ? rd[TX_4X4][1] : rd[TX_8X8][1]; } static int block_error(int16_t *coeff, int16_t *dqcoeff, int block_size, int shift) { int i; int64_t error = 0; for (i = 0; i < block_size; i++) { int this_diff = coeff[i] - dqcoeff[i]; error += (unsigned)this_diff * this_diff; } error >>= shift; return error > INT_MAX ? INT_MAX : (int)error; } static int block_error_sby(MACROBLOCK *x, BLOCK_SIZE_TYPE bsize, int shift) { const int bwl = b_width_log2(bsize), bhl = b_height_log2(bsize); return block_error(x->plane[0].coeff, x->e_mbd.plane[0].dqcoeff, 16 << (bwl + bhl), shift); } static int block_error_sbuv(MACROBLOCK *x, BLOCK_SIZE_TYPE bsize, int shift) { const int bwl = b_width_log2(bsize), bhl = b_height_log2(bsize); int64_t sum = 0; int plane; for (plane = 1; plane < MAX_MB_PLANE; plane++) { const int subsampling = x->e_mbd.plane[plane].subsampling_x + x->e_mbd.plane[plane].subsampling_y; sum += block_error(x->plane[plane].coeff, x->e_mbd.plane[plane].dqcoeff, 16 << (bwl + bhl - subsampling), 0); } sum >>= shift; return sum > INT_MAX ? INT_MAX : (int)sum; } static int rdcost_plane(VP9_COMMON *const cm, MACROBLOCK *x, int plane, BLOCK_SIZE_TYPE bsize, TX_SIZE tx_size) { MACROBLOCKD *const xd = &x->e_mbd; const int bwl = b_width_log2(bsize) - xd->plane[plane].subsampling_x; const int bhl = b_height_log2(bsize) - xd->plane[plane].subsampling_y; const int bw = 1 << bwl, bh = 1 << bhl; ENTROPY_CONTEXT t_above[16], t_left[16]; int block, cost; vpx_memcpy(&t_above, xd->plane[plane].above_context, sizeof(ENTROPY_CONTEXT) * bw); vpx_memcpy(&t_left, xd->plane[plane].left_context, sizeof(ENTROPY_CONTEXT) * bh); cost = 0; for (block = 0; block < bw * bh; block += 1 << (tx_size * 2)) { int x_idx, y_idx; txfrm_block_to_raster_xy(xd, bsize, plane, block, tx_size * 2, &x_idx, &y_idx); cost += cost_coeffs(cm, x, plane, block, xd->plane[plane].plane_type, t_above + x_idx, t_left + y_idx, tx_size, bw * bh); } return cost; } static int rdcost_uv(VP9_COMMON *const cm, MACROBLOCK *x, BLOCK_SIZE_TYPE bsize, TX_SIZE tx_size) { int cost = 0, plane; for (plane = 1; plane < MAX_MB_PLANE; plane++) { cost += rdcost_plane(cm, x, plane, bsize, tx_size); } return cost; } static void super_block_yrd_for_txfm(VP9_COMMON *const cm, MACROBLOCK *x, int *rate, int *distortion, int *skippable, BLOCK_SIZE_TYPE bsize, TX_SIZE tx_size) { MACROBLOCKD *const xd = &x->e_mbd; xd->mode_info_context->mbmi.txfm_size = tx_size; vp9_xform_quant_sby(cm, x, bsize); *distortion = block_error_sby(x, bsize, tx_size == TX_32X32 ? 0 : 2); *rate = rdcost_plane(cm, x, 0, bsize, tx_size); *skippable = vp9_sby_is_skippable(xd, bsize); } static void super_block_yrd(VP9_COMP *cpi, MACROBLOCK *x, int *rate, int *distortion, int *skip, BLOCK_SIZE_TYPE bs, int64_t txfm_cache[NB_TXFM_MODES]) { VP9_COMMON *const cm = &cpi->common; int r[TX_SIZE_MAX_SB][2], d[TX_SIZE_MAX_SB], s[TX_SIZE_MAX_SB]; vp9_subtract_sby(x, bs); if (bs >= BLOCK_SIZE_SB32X32) super_block_yrd_for_txfm(cm, x, &r[TX_32X32][0], &d[TX_32X32], &s[TX_32X32], bs, TX_32X32); if (bs >= BLOCK_SIZE_MB16X16) super_block_yrd_for_txfm(cm, x, &r[TX_16X16][0], &d[TX_16X16], &s[TX_16X16], bs, TX_16X16); super_block_yrd_for_txfm(cm, x, &r[TX_8X8][0], &d[TX_8X8], &s[TX_8X8], bs, TX_8X8); super_block_yrd_for_txfm(cm, x, &r[TX_4X4][0], &d[TX_4X4], &s[TX_4X4], bs, TX_4X4); choose_txfm_size_from_rd(cpi, x, r, rate, d, distortion, s, skip, txfm_cache, TX_32X32 - (bs < BLOCK_SIZE_SB32X32) - (bs < BLOCK_SIZE_MB16X16)); } static int64_t rd_pick_intra4x4block(VP9_COMP *cpi, MACROBLOCK *x, int ib, B_PREDICTION_MODE *best_mode, int *bmode_costs, ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l, int *bestrate, int *bestratey, int *bestdistortion) { B_PREDICTION_MODE mode; MACROBLOCKD *xd = &x->e_mbd; int64_t best_rd = INT64_MAX; int rate = 0; int distortion; VP9_COMMON *const cm = &cpi->common; const int src_stride = x->plane[0].src.stride; uint8_t* const src = raster_block_offset_uint8(xd, BLOCK_SIZE_SB8X8, 0, ib, x->plane[0].src.buf, src_stride); int16_t* const src_diff = raster_block_offset_int16(xd, BLOCK_SIZE_SB8X8, 0, ib, x->plane[0].src_diff); int16_t* const diff = raster_block_offset_int16(xd, BLOCK_SIZE_SB8X8, 0, ib, xd->plane[0].diff); int16_t* const coeff = BLOCK_OFFSET(x->plane[0].coeff, ib, 16); uint8_t* const dst = raster_block_offset_uint8(xd, BLOCK_SIZE_SB8X8, 0, ib, xd->plane[0].dst.buf, xd->plane[0].dst.stride); ENTROPY_CONTEXT ta = *a, tempa = *a; ENTROPY_CONTEXT tl = *l, templ = *l; TX_TYPE tx_type = DCT_DCT; TX_TYPE best_tx_type = DCT_DCT; /* * The predictor buffer is a 2d buffer with a stride of 16. Create * a temp buffer that meets the stride requirements, but we are only * interested in the left 4x4 block * */ DECLARE_ALIGNED_ARRAY(16, int16_t, best_dqcoeff, 16); assert(ib < 4); xd->mode_info_context->mbmi.txfm_size = TX_4X4; for (mode = B_DC_PRED; mode < LEFT4X4; mode++) { int64_t this_rd; int ratey; xd->mode_info_context->bmi[ib].as_mode.first = mode; rate = bmode_costs[mode]; vp9_intra4x4_predict(xd, ib, BLOCK_SIZE_SB8X8, mode, dst, xd->plane[0].dst.stride); vp9_subtract_block(4, 4, src_diff, 8, src, src_stride, dst, xd->plane[0].dst.stride); xd->mode_info_context->bmi[ib].as_mode.first = mode; tx_type = get_tx_type_4x4(xd, ib); if (tx_type != DCT_DCT) { vp9_short_fht4x4(src_diff, coeff, 8, tx_type); x->quantize_b_4x4(x, ib, tx_type, 16); } else { x->fwd_txm4x4(src_diff, coeff, 16); x->quantize_b_4x4(x, ib, tx_type, 16); } tempa = ta; templ = tl; ratey = cost_coeffs(cm, x, 0, ib, PLANE_TYPE_Y_WITH_DC, &tempa, &templ, TX_4X4, 16); rate += ratey; distortion = vp9_block_error(coeff, BLOCK_OFFSET(xd->plane[0].dqcoeff, ib, 16), 16) >> 2; 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; best_tx_type = tx_type; *a = tempa; *l = templ; vpx_memcpy(best_dqcoeff, BLOCK_OFFSET(xd->plane[0].dqcoeff, ib, 16), 32); } } xd->mode_info_context->bmi[ib].as_mode.first = (B_PREDICTION_MODE)(*best_mode); // inverse transform if (best_tx_type != DCT_DCT) vp9_short_iht4x4(best_dqcoeff, diff, 8, best_tx_type); else xd->inv_txm4x4(best_dqcoeff, diff, 16); vp9_intra4x4_predict(xd, ib, BLOCK_SIZE_SB8X8, *best_mode, dst, xd->plane[0].dst.stride); vp9_recon_b(dst, diff, 8, dst, xd->plane[0].dst.stride); return best_rd; } static int64_t rd_pick_intra4x4mby_modes(VP9_COMP *cpi, MACROBLOCK *mb, int *Rate, int *rate_y, int *Distortion, int64_t best_rd) { int i; MACROBLOCKD *const xd = &mb->e_mbd; int cost = mb->mbmode_cost[xd->frame_type][I4X4_PRED]; int distortion = 0; int tot_rate_y = 0; int64_t total_rd = 0; ENTROPY_CONTEXT t_above[2], t_left[2]; int *bmode_costs; vpx_memcpy(t_above, xd->plane[0].above_context, sizeof(t_above)); vpx_memcpy(t_left, xd->plane[0].left_context, sizeof(t_left)); xd->mode_info_context->mbmi.mode = I4X4_PRED; bmode_costs = mb->inter_bmode_costs; for (i = 0; i < 4; i++) { const int x_idx = i & 1, y_idx = i >> 1; MODE_INFO *const mic = xd->mode_info_context; const int mis = xd->mode_info_stride; B_PREDICTION_MODE UNINITIALIZED_IS_SAFE(best_mode); int UNINITIALIZED_IS_SAFE(r), UNINITIALIZED_IS_SAFE(ry), UNINITIALIZED_IS_SAFE(d); if (xd->frame_type == KEY_FRAME) { const B_PREDICTION_MODE A = above_block_mode(mic, i, mis); const B_PREDICTION_MODE L = left_block_mode(mic, i); bmode_costs = mb->bmode_costs[A][L]; } total_rd += rd_pick_intra4x4block(cpi, mb, i, &best_mode, bmode_costs, t_above + x_idx, t_left + y_idx, &r, &ry, &d); cost += r; distortion += d; tot_rate_y += ry; mic->bmi[i].as_mode.first = best_mode; if (total_rd >= best_rd) break; } if (total_rd >= best_rd) return INT64_MAX; *Rate = cost; *rate_y = tot_rate_y; *Distortion = distortion; return RDCOST(mb->rdmult, mb->rddiv, cost, distortion); } static int64_t rd_pick_intra_sby_mode(VP9_COMP *cpi, MACROBLOCK *x, int *rate, int *rate_tokenonly, int *distortion, int *skippable, BLOCK_SIZE_TYPE bsize, int64_t txfm_cache[NB_TXFM_MODES]) { MB_PREDICTION_MODE mode; MB_PREDICTION_MODE UNINITIALIZED_IS_SAFE(mode_selected); int this_rate, this_rate_tokenonly; int this_distortion, s; int64_t best_rd = INT64_MAX, this_rd; TX_SIZE UNINITIALIZED_IS_SAFE(best_tx); int i; for (i = 0; i < NB_TXFM_MODES; i++) txfm_cache[i] = INT64_MAX; /* Y Search for 32x32 intra prediction mode */ for (mode = DC_PRED; mode <= TM_PRED; mode++) { int64_t local_txfm_cache[NB_TXFM_MODES]; x->e_mbd.mode_info_context->mbmi.mode = mode; vp9_build_intra_predictors_sby_s(&x->e_mbd, bsize); super_block_yrd(cpi, x, &this_rate_tokenonly, &this_distortion, &s, bsize, local_txfm_cache); this_rate = this_rate_tokenonly + x->mbmode_cost[x->e_mbd.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; best_tx = x->e_mbd.mode_info_context->mbmi.txfm_size; *rate = this_rate; *rate_tokenonly = this_rate_tokenonly; *distortion = this_distortion; *skippable = s; } for (i = 0; i < NB_TXFM_MODES; i++) { int64_t adj_rd = this_rd + local_txfm_cache[i] - local_txfm_cache[cpi->common.txfm_mode]; if (adj_rd < txfm_cache[i]) { txfm_cache[i] = adj_rd; } } } x->e_mbd.mode_info_context->mbmi.mode = mode_selected; x->e_mbd.mode_info_context->mbmi.txfm_size = best_tx; return best_rd; } static void super_block_uvrd_for_txfm(VP9_COMMON *const cm, MACROBLOCK *x, int *rate, int *distortion, int *skippable, BLOCK_SIZE_TYPE bsize, TX_SIZE uv_tx_size) { MACROBLOCKD *const xd = &x->e_mbd; vp9_xform_quant_sbuv(cm, x, bsize); *distortion = block_error_sbuv(x, bsize, uv_tx_size == TX_32X32 ? 0 : 2); *rate = rdcost_uv(cm, x, bsize, uv_tx_size); *skippable = vp9_sbuv_is_skippable(xd, bsize); } static void super_block_uvrd(VP9_COMMON *const cm, MACROBLOCK *x, int *rate, int *distortion, int *skippable, BLOCK_SIZE_TYPE bsize) { MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mode_info_context->mbmi; vp9_subtract_sbuv(x, bsize); if (mbmi->txfm_size >= TX_32X32 && bsize >= BLOCK_SIZE_SB64X64) { super_block_uvrd_for_txfm(cm, x, rate, distortion, skippable, bsize, TX_32X32); } else if (mbmi->txfm_size >= TX_16X16 && bsize >= BLOCK_SIZE_SB32X32) { super_block_uvrd_for_txfm(cm, x, rate, distortion, skippable, bsize, TX_16X16); } else if (mbmi->txfm_size >= TX_8X8 && bsize >= BLOCK_SIZE_MB16X16) { super_block_uvrd_for_txfm(cm, x, rate, distortion, skippable, bsize, TX_8X8); } else { super_block_uvrd_for_txfm(cm, x, rate, distortion, skippable, bsize, TX_4X4); } } static int64_t rd_pick_intra_sbuv_mode(VP9_COMP *cpi, MACROBLOCK *x, int *rate, int *rate_tokenonly, int *distortion, int *skippable, BLOCK_SIZE_TYPE bsize) { MB_PREDICTION_MODE mode; MB_PREDICTION_MODE UNINITIALIZED_IS_SAFE(mode_selected); int64_t best_rd = INT64_MAX, this_rd; int this_rate_tokenonly, this_rate; int this_distortion, s; for (mode = DC_PRED; mode <= TM_PRED; mode++) { x->e_mbd.mode_info_context->mbmi.uv_mode = mode; vp9_build_intra_predictors_sbuv_s(&x->e_mbd, bsize); super_block_uvrd(&cpi->common, x, &this_rate_tokenonly, &this_distortion, &s, bsize); this_rate = this_rate_tokenonly + x->intra_uv_mode_cost[x->e_mbd.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; } } x->e_mbd.mode_info_context->mbmi.uv_mode = mode_selected; return best_rd; } int vp9_cost_mv_ref(VP9_COMP *cpi, MB_PREDICTION_MODE m, const int mode_context) { MACROBLOCKD *xd = &cpi->mb.e_mbd; int segment_id = xd->mode_info_context->mbmi.segment_id; // Dont account for mode here if segment skip is enabled. if (!vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP)) { VP9_COMMON *pc = &cpi->common; vp9_prob p [VP9_MVREFS - 1]; assert(NEARESTMV <= m && m <= SPLITMV); vp9_mv_ref_probs(pc, p, mode_context); return cost_token(vp9_mv_ref_tree, p, vp9_mv_ref_encoding_array - NEARESTMV + m); } else return 0; } void vp9_set_mbmode_and_mvs(MACROBLOCK *x, MB_PREDICTION_MODE mb, int_mv *mv) { x->e_mbd.mode_info_context->mbmi.mode = mb; x->e_mbd.mode_info_context->mbmi.mv[0].as_int = mv->as_int; } static int labels2mode(MACROBLOCK *x, int const *labelings, int which_label, B_PREDICTION_MODE this_mode, int_mv *this_mv, int_mv *this_second_mv, int_mv seg_mvs[MAX_REF_FRAMES - 1], int_mv *best_ref_mv, int_mv *second_best_ref_mv, int *mvjcost, int *mvcost[2], VP9_COMP *cpi) { MACROBLOCKD *const xd = &x->e_mbd; MODE_INFO *const mic = xd->mode_info_context; MB_MODE_INFO * mbmi = &mic->mbmi; const int mis = xd->mode_info_stride; int i, cost = 0, thismvcost = 0; /* We have to be careful retrieving previously-encoded motion vectors. Ones from this macroblock have to be pulled from the BLOCKD array as they have not yet made it to the bmi array in our MB_MODE_INFO. */ for (i = 0; i < 4; ++i) { const int row = i >> 1, col = i & 1; B_PREDICTION_MODE m; if (labelings[i] != which_label) continue; if (col && labelings[i] == labelings[i - 1]) m = LEFT4X4; else if (row && labelings[i] == labelings[i - 2]) m = ABOVE4X4; else { // 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 (m = this_mode) { case NEW4X4 : if (mbmi->second_ref_frame > 0) { this_mv->as_int = seg_mvs[mbmi->ref_frame - 1].as_int; this_second_mv->as_int = seg_mvs[mbmi->second_ref_frame - 1].as_int; } thismvcost = vp9_mv_bit_cost(this_mv, best_ref_mv, mvjcost, mvcost, 102, xd->allow_high_precision_mv); if (mbmi->second_ref_frame > 0) { thismvcost += vp9_mv_bit_cost(this_second_mv, second_best_ref_mv, mvjcost, mvcost, 102, xd->allow_high_precision_mv); } break; case LEFT4X4: this_mv->as_int = col ? mic->bmi[i - 1].as_mv[0].as_int : left_block_mv(xd, mic, i); if (mbmi->second_ref_frame > 0) this_second_mv->as_int = col ? mic->bmi[i - 1].as_mv[1].as_int : left_block_second_mv(xd, mic, i); break; case ABOVE4X4: this_mv->as_int = row ? mic->bmi[i - 2].as_mv[0].as_int : above_block_mv(mic, i, mis); if (mbmi->second_ref_frame > 0) this_second_mv->as_int = row ? mic->bmi[i - 2].as_mv[1].as_int : above_block_second_mv(mic, i, mis); break; case ZERO4X4: this_mv->as_int = 0; if (mbmi->second_ref_frame > 0) this_second_mv->as_int = 0; break; default: break; } if (m == ABOVE4X4) { // replace above with left if same int_mv left_mv, left_second_mv; left_second_mv.as_int = 0; left_mv.as_int = col ? mic->bmi[i - 1].as_mv[0].as_int : left_block_mv(xd, mic, i); if (mbmi->second_ref_frame > 0) left_second_mv.as_int = col ? mic->bmi[i - 1].as_mv[1].as_int : left_block_second_mv(xd, mic, i); if (left_mv.as_int == this_mv->as_int && (mbmi->second_ref_frame <= 0 || left_second_mv.as_int == this_second_mv->as_int)) m = LEFT4X4; } cost = x->inter_bmode_costs[m]; } mic->bmi[i].as_mv[0].as_int = this_mv->as_int; if (mbmi->second_ref_frame > 0) mic->bmi[i].as_mv[1].as_int = this_second_mv->as_int; x->partition_info->bmi[i].mode = m; x->partition_info->bmi[i].mv.as_int = this_mv->as_int; if (mbmi->second_ref_frame > 0) x->partition_info->bmi[i].second_mv.as_int = this_second_mv->as_int; } cost += thismvcost; return cost; } static int64_t encode_inter_mb_segment(VP9_COMMON *const cm, MACROBLOCK *x, int const *labels, int which_label, int *labelyrate, int *distortion, ENTROPY_CONTEXT *ta, ENTROPY_CONTEXT *tl) { int i; MACROBLOCKD *xd = &x->e_mbd; *labelyrate = 0; *distortion = 0; for (i = 0; i < 4; i++) { if (labels[i] == which_label) { const int src_stride = x->plane[0].src.stride; uint8_t* const src = raster_block_offset_uint8(xd, BLOCK_SIZE_SB8X8, 0, i, x->plane[0].src.buf, src_stride); int16_t* const src_diff = raster_block_offset_int16(xd, BLOCK_SIZE_SB8X8, 0, i, x->plane[0].src_diff); int16_t* const coeff = BLOCK_OFFSET(x->plane[0].coeff, 16, i); uint8_t* const pre = raster_block_offset_uint8(xd, BLOCK_SIZE_SB8X8, 0, i, xd->plane[0].pre[0].buf, xd->plane[0].pre[0].stride); uint8_t* const dst = raster_block_offset_uint8(xd, BLOCK_SIZE_SB8X8, 0, i, xd->plane[0].dst.buf, xd->plane[0].dst.stride); int thisdistortion; vp9_build_inter_predictor(pre, xd->plane[0].pre[0].stride, dst, xd->plane[0].dst.stride, &xd->mode_info_context->bmi[i].as_mv[0], &xd->scale_factor[0], 4, 4, 0 /* no avg */, &xd->subpix); // TODO(debargha): Make this work properly with the // implicit-compoundinter-weight experiment when implicit // weighting for splitmv modes is turned on. if (xd->mode_info_context->mbmi.second_ref_frame > 0) { uint8_t* const second_pre = raster_block_offset_uint8(xd, BLOCK_SIZE_SB8X8, 0, i, xd->plane[0].pre[1].buf, xd->plane[0].pre[1].stride); vp9_build_inter_predictor(second_pre, xd->plane[0].pre[1].stride, dst, xd->plane[0].dst.stride, &xd->mode_info_context->bmi[i].as_mv[1], &xd->scale_factor[1], 4, 4, 1, &xd->subpix); } vp9_subtract_block(4, 4, src_diff, 8, src, src_stride, dst, xd->plane[0].dst.stride); x->fwd_txm4x4(src_diff, coeff, 16); x->quantize_b_4x4(x, i, DCT_DCT, 16); thisdistortion = vp9_block_error(coeff, BLOCK_OFFSET(xd->plane[0].dqcoeff, i, 16), 16); *distortion += thisdistortion; *labelyrate += cost_coeffs(cm, x, 0, i, PLANE_TYPE_Y_WITH_DC, ta + (i & 1), tl + (i >> 1), TX_4X4, 16); } } *distortion >>= 2; return RDCOST(x->rdmult, x->rddiv, *labelyrate, *distortion); } typedef struct { int_mv *ref_mv, *second_ref_mv; int_mv mvp; int64_t segment_rd; int r; int d; int segment_yrate; B_PREDICTION_MODE modes[4]; int_mv mvs[4], second_mvs[4]; int eobs[4]; int mvthresh; } BEST_SEG_INFO; static INLINE int mv_check_bounds(MACROBLOCK *x, int_mv *mv) { int r = 0; r |= (mv->as_mv.row >> 3) < x->mv_row_min; r |= (mv->as_mv.row >> 3) > x->mv_row_max; r |= (mv->as_mv.col >> 3) < x->mv_col_min; r |= (mv->as_mv.col >> 3) > x->mv_col_max; return r; } static void rd_check_segment_txsize(VP9_COMP *cpi, MACROBLOCK *x, BEST_SEG_INFO *bsi, int_mv seg_mvs[4][MAX_REF_FRAMES - 1]) { int i, j; static const int labels[4] = { 0, 1, 2, 3 }; int br = 0, bd = 0; B_PREDICTION_MODE this_mode; MB_MODE_INFO * mbmi = &x->e_mbd.mode_info_context->mbmi; const int label_count = 4; int64_t this_segment_rd = 0, other_segment_rd; int label_mv_thresh; int rate = 0; int sbr = 0, sbd = 0; int segmentyrate = 0; int best_eobs[4] = { 0 }; vp9_variance_fn_ptr_t *v_fn_ptr; ENTROPY_CONTEXT t_above[2], t_left[2]; ENTROPY_CONTEXT t_above_b[2], t_left_b[2]; vpx_memcpy(t_above, x->e_mbd.plane[0].above_context, sizeof(t_above)); vpx_memcpy(t_left, x->e_mbd.plane[0].left_context, sizeof(t_left)); v_fn_ptr = &cpi->fn_ptr[BLOCK_4X4]; // 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 rate += vp9_cost_mv_ref(cpi, SPLITMV, mbmi->mb_mode_context[mbmi->ref_frame]); this_segment_rd += RDCOST(x->rdmult, x->rddiv, rate, 0); br += rate; other_segment_rd = this_segment_rd; for (i = 0; i < label_count && this_segment_rd < bsi->segment_rd; i++) { int_mv mode_mv[B_MODE_COUNT], second_mode_mv[B_MODE_COUNT]; int64_t best_label_rd = INT64_MAX, best_other_rd = INT64_MAX; B_PREDICTION_MODE mode_selected = ZERO4X4; int bestlabelyrate = 0; // search for the best motion vector on this segment for (this_mode = LEFT4X4; this_mode <= NEW4X4; this_mode ++) { int64_t this_rd; int distortion; int labelyrate; ENTROPY_CONTEXT t_above_s[2], t_left_s[2]; vpx_memcpy(t_above_s, t_above, sizeof(t_above_s)); vpx_memcpy(t_left_s, t_left, sizeof(t_left_s)); // motion search for newmv (single predictor case only) if (mbmi->second_ref_frame <= 0 && this_mode == NEW4X4) { int sseshift, n; int step_param = 0; int further_steps; int thissme, bestsme = INT_MAX; const struct buf_2d orig_src = x->plane[0].src; const struct buf_2d orig_pre = x->e_mbd.plane[0].pre[0]; /* Is the best so far sufficiently good that we cant justify doing * and new motion search. */ if (best_label_rd < label_mv_thresh) break; if (cpi->compressor_speed) { // use previous block's result as next block's MV predictor. if (i > 0) { bsi->mvp.as_int = x->e_mbd.mode_info_context->bmi[i - 1].as_mv[0].as_int; if (i == 2) bsi->mvp.as_int = x->e_mbd.mode_info_context->bmi[i - 2].as_mv[0].as_int; step_param = 2; } } further_steps = (MAX_MVSEARCH_STEPS - 1) - step_param; { int sadpb = x->sadperbit4; int_mv mvp_full; mvp_full.as_mv.row = bsi->mvp.as_mv.row >> 3; mvp_full.as_mv.col = bsi->mvp.as_mv.col >> 3; // find first label n = i; // adjust src pointer for this segment x->plane[0].src.buf = raster_block_offset_uint8(&x->e_mbd, BLOCK_SIZE_SB8X8, 0, n, x->plane[0].src.buf, x->plane[0].src.stride); assert(((intptr_t)x->e_mbd.plane[0].pre[0].buf & 0x7) == 0); x->e_mbd.plane[0].pre[0].buf = raster_block_offset_uint8(&x->e_mbd, BLOCK_SIZE_SB8X8, 0, n, x->e_mbd.plane[0].pre[0].buf, x->e_mbd.plane[0].pre[0].stride); bestsme = vp9_full_pixel_diamond(cpi, x, &mvp_full, step_param, sadpb, further_steps, 0, v_fn_ptr, bsi->ref_mv, &mode_mv[NEW4X4]); sseshift = 0; // Should we do a full search (best quality only) if ((cpi->compressor_speed == 0) && (bestsme >> sseshift) > 4000) { /* 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, n); if (thissme < bestsme) { bestsme = thissme; mode_mv[NEW4X4].as_int = x->e_mbd.mode_info_context->bmi[n].as_mv[0].as_int; } else { /* The full search result is actually worse so re-instate the * previous best vector */ x->e_mbd.mode_info_context->bmi[n].as_mv[0].as_int = mode_mv[NEW4X4].as_int; } } } if (bestsme < INT_MAX) { int distortion; unsigned int sse; cpi->find_fractional_mv_step(x, &mode_mv[NEW4X4], bsi->ref_mv, x->errorperbit, v_fn_ptr, x->nmvjointcost, x->mvcost, &distortion, &sse); // safe motion search result for use in compound prediction seg_mvs[i][mbmi->ref_frame - 1].as_int = mode_mv[NEW4X4].as_int; } // restore src pointers x->plane[0].src = orig_src; x->e_mbd.plane[0].pre[0] = orig_pre; } else if (mbmi->second_ref_frame > 0 && this_mode == NEW4X4) { /* NEW4X4 */ /* motion search not completed? Then skip newmv for this block with * comppred */ if (seg_mvs[i][mbmi->second_ref_frame - 1].as_int == INVALID_MV || seg_mvs[i][mbmi->ref_frame - 1].as_int == INVALID_MV) { continue; } } rate = labels2mode(x, labels, i, this_mode, &mode_mv[this_mode], &second_mode_mv[this_mode], seg_mvs[i], bsi->ref_mv, bsi->second_ref_mv, x->nmvjointcost, x->mvcost, cpi); // Trap vectors that reach beyond the UMV borders if (((mode_mv[this_mode].as_mv.row >> 3) < x->mv_row_min) || ((mode_mv[this_mode].as_mv.row >> 3) > x->mv_row_max) || ((mode_mv[this_mode].as_mv.col >> 3) < x->mv_col_min) || ((mode_mv[this_mode].as_mv.col >> 3) > x->mv_col_max)) { continue; } if (mbmi->second_ref_frame > 0 && mv_check_bounds(x, &second_mode_mv[this_mode])) continue; this_rd = encode_inter_mb_segment(&cpi->common, x, labels, i, &labelyrate, &distortion, t_above_s, t_left_s); this_rd += RDCOST(x->rdmult, x->rddiv, rate, 0); rate += labelyrate; if (this_rd < best_label_rd) { sbr = rate; sbd = distortion; bestlabelyrate = labelyrate; mode_selected = this_mode; best_label_rd = this_rd; for (j = 0; j < 4; j++) if (labels[j] == i) best_eobs[j] = x->e_mbd.plane[0].eobs[j]; vpx_memcpy(t_above_b, t_above_s, sizeof(t_above_s)); vpx_memcpy(t_left_b, t_left_s, sizeof(t_left_s)); } } /*for each 4x4 mode*/ vpx_memcpy(t_above, t_above_b, sizeof(t_above)); vpx_memcpy(t_left, t_left_b, sizeof(t_left)); labels2mode(x, labels, i, mode_selected, &mode_mv[mode_selected], &second_mode_mv[mode_selected], seg_mvs[i], bsi->ref_mv, bsi->second_ref_mv, x->nmvjointcost, x->mvcost, cpi); br += sbr; bd += sbd; segmentyrate += bestlabelyrate; this_segment_rd += best_label_rd; other_segment_rd += best_other_rd; } /* for each label */ if (this_segment_rd < bsi->segment_rd) { bsi->r = br; bsi->d = bd; bsi->segment_yrate = segmentyrate; bsi->segment_rd = this_segment_rd; // store everything needed to come back to this!! for (i = 0; i < 4; i++) { bsi->mvs[i].as_mv = x->partition_info->bmi[i].mv.as_mv; if (mbmi->second_ref_frame > 0) bsi->second_mvs[i].as_mv = x->partition_info->bmi[i].second_mv.as_mv; bsi->modes[i] = x->partition_info->bmi[i].mode; bsi->eobs[i] = best_eobs[i]; } } } static void rd_check_segment(VP9_COMP *cpi, MACROBLOCK *x, BEST_SEG_INFO *bsi, int_mv seg_mvs[4][MAX_REF_FRAMES - 1]) { rd_check_segment_txsize(cpi, x, bsi, seg_mvs); } static int rd_pick_best_mbsegmentation(VP9_COMP *cpi, MACROBLOCK *x, int_mv *best_ref_mv, int_mv *second_best_ref_mv, int64_t best_rd, int *returntotrate, int *returnyrate, int *returndistortion, int *skippable, int mvthresh, int_mv seg_mvs[4][MAX_REF_FRAMES - 1]) { int i; BEST_SEG_INFO bsi; MB_MODE_INFO * mbmi = &x->e_mbd.mode_info_context->mbmi; vpx_memset(&bsi, 0, sizeof(bsi)); bsi.segment_rd = best_rd; bsi.ref_mv = best_ref_mv; bsi.second_ref_mv = 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] = ZERO4X4; rd_check_segment(cpi, x, &bsi, seg_mvs); /* set it to the best */ for (i = 0; i < 4; i++) { x->e_mbd.mode_info_context->bmi[i].as_mv[0].as_int = bsi.mvs[i].as_int; if (mbmi->second_ref_frame > 0) x->e_mbd.mode_info_context->bmi[i].as_mv[1].as_int = bsi.second_mvs[i].as_int; x->e_mbd.plane[0].eobs[i] = bsi.eobs[i]; } /* save partitions */ x->partition_info->count = 4; for (i = 0; i < x->partition_info->count; i++) { x->partition_info->bmi[i].mode = bsi.modes[i]; x->partition_info->bmi[i].mv.as_mv = bsi.mvs[i].as_mv; if (mbmi->second_ref_frame > 0) x->partition_info->bmi[i].second_mv.as_mv = bsi.second_mvs[i].as_mv; } /* * used to set mbmi->mv.as_int */ x->partition_info->bmi[3].mv.as_int = bsi.mvs[3].as_int; if (mbmi->second_ref_frame > 0) x->partition_info->bmi[3].second_mv.as_int = bsi.second_mvs[3].as_int; *returntotrate = bsi.r; *returndistortion = bsi.d; *returnyrate = bsi.segment_yrate; *skippable = vp9_sby_is_skippable(&x->e_mbd, BLOCK_SIZE_SB8X8); return (int)(bsi.segment_rd); } static void mv_pred(VP9_COMP *cpi, MACROBLOCK *x, uint8_t *ref_y_buffer, int ref_y_stride, int ref_frame, enum BlockSize block_size ) { MACROBLOCKD *xd = &x->e_mbd; MB_MODE_INFO *mbmi = &xd->mode_info_context->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; uint8_t *src_y_ptr = x->plane[0].src.buf; uint8_t *ref_y_ptr; int row_offset, col_offset; // Get the sad for each candidate reference mv for (i = 0; i < MAX_MV_REF_CANDIDATES; i++) { this_mv.as_int = mbmi->ref_mvs[ref_frame][i].as_int; // The list is at an end if we see 0 for a second time. if (!this_mv.as_int && zero_seen) break; 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; } extern void vp9_calc_ref_probs(int *count, vp9_prob *probs); static void estimate_curframe_refprobs(VP9_COMP *cpi, vp9_prob mod_refprobs[3], int pred_ref) { int norm_cnt[MAX_REF_FRAMES]; const int *const rfct = cpi->count_mb_ref_frame_usage; int intra_count = rfct[INTRA_FRAME]; int last_count = rfct[LAST_FRAME]; int gf_count = rfct[GOLDEN_FRAME]; int arf_count = rfct[ALTREF_FRAME]; // Work out modified reference frame probabilities to use where prediction // of the reference frame fails if (pred_ref == INTRA_FRAME) { norm_cnt[0] = 0; norm_cnt[1] = last_count; norm_cnt[2] = gf_count; norm_cnt[3] = arf_count; vp9_calc_ref_probs(norm_cnt, mod_refprobs); mod_refprobs[0] = 0; // This branch implicit } else if (pred_ref == LAST_FRAME) { norm_cnt[0] = intra_count; norm_cnt[1] = 0; norm_cnt[2] = gf_count; norm_cnt[3] = arf_count; vp9_calc_ref_probs(norm_cnt, mod_refprobs); mod_refprobs[1] = 0; // This branch implicit } else if (pred_ref == GOLDEN_FRAME) { norm_cnt[0] = intra_count; norm_cnt[1] = last_count; norm_cnt[2] = 0; norm_cnt[3] = arf_count; vp9_calc_ref_probs(norm_cnt, mod_refprobs); mod_refprobs[2] = 0; // This branch implicit } else { norm_cnt[0] = intra_count; norm_cnt[1] = last_count; norm_cnt[2] = gf_count; norm_cnt[3] = 0; vp9_calc_ref_probs(norm_cnt, mod_refprobs); mod_refprobs[2] = 0; // This branch implicit } } static INLINE unsigned weighted_cost(vp9_prob *tab0, vp9_prob *tab1, int idx, int val, int weight) { unsigned cost0 = tab0[idx] ? vp9_cost_bit(tab0[idx], val) : 0; unsigned cost1 = tab1[idx] ? vp9_cost_bit(tab1[idx], val) : 0; // weight is 16-bit fixed point, so this basically calculates: // 0.5 + weight * cost1 + (1.0 - weight) * cost0 return (0x8000 + weight * cost1 + (0x10000 - weight) * cost0) >> 16; } static void estimate_ref_frame_costs(VP9_COMP *cpi, int segment_id, unsigned int *ref_costs) { VP9_COMMON *cm = &cpi->common; MACROBLOCKD *xd = &cpi->mb.e_mbd; vp9_prob *mod_refprobs; unsigned int cost; int pred_ref; int pred_flag; int pred_ctx; int i; vp9_prob pred_prob, new_pred_prob; int seg_ref_active; int seg_ref_count = 0; seg_ref_active = vp9_segfeature_active(xd, segment_id, SEG_LVL_REF_FRAME); if (seg_ref_active) { seg_ref_count = vp9_check_segref(xd, segment_id, INTRA_FRAME) + vp9_check_segref(xd, segment_id, LAST_FRAME) + vp9_check_segref(xd, segment_id, GOLDEN_FRAME) + vp9_check_segref(xd, segment_id, ALTREF_FRAME); } // Get the predicted reference for this mb pred_ref = vp9_get_pred_ref(cm, xd); // Get the context probability for the prediction flag (based on last frame) pred_prob = vp9_get_pred_prob(cm, xd, PRED_REF); // Predict probability for current frame based on stats so far pred_ctx = vp9_get_pred_context(cm, xd, PRED_REF); new_pred_prob = get_binary_prob(cpi->ref_pred_count[pred_ctx][0], cpi->ref_pred_count[pred_ctx][1]); // Get the set of probabilities to use if prediction fails mod_refprobs = cm->mod_refprobs[pred_ref]; // For each possible selected reference frame work out a cost. for (i = 0; i < MAX_REF_FRAMES; i++) { if (seg_ref_active && seg_ref_count == 1) { cost = 0; } else { pred_flag = (i == pred_ref); // Get the prediction for the current mb cost = weighted_cost(&pred_prob, &new_pred_prob, 0, pred_flag, cpi->seg0_progress); if (cost > 1024) cost = 768; // i.e. account for 4 bits max. // for incorrectly predicted cases if (!pred_flag) { vp9_prob curframe_mod_refprobs[3]; if (cpi->seg0_progress) { estimate_curframe_refprobs(cpi, curframe_mod_refprobs, pred_ref); } else { vpx_memset(curframe_mod_refprobs, 0, sizeof(curframe_mod_refprobs)); } cost += weighted_cost(mod_refprobs, curframe_mod_refprobs, 0, (i != INTRA_FRAME), cpi->seg0_progress); if (i != INTRA_FRAME) { cost += weighted_cost(mod_refprobs, curframe_mod_refprobs, 1, (i != LAST_FRAME), cpi->seg0_progress); if (i != LAST_FRAME) { cost += weighted_cost(mod_refprobs, curframe_mod_refprobs, 2, (i != GOLDEN_FRAME), cpi->seg0_progress); } } } } ref_costs[i] = cost; } } static void store_coding_context(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx, int mode_index, PARTITION_INFO *partition, int_mv *ref_mv, int_mv *second_ref_mv, int64_t comp_pred_diff[NB_PREDICTION_TYPES], int64_t txfm_size_diff[NB_TXFM_MODES]) { 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; vpx_memcpy(&ctx->mic, xd->mode_info_context, sizeof(MODE_INFO)); if (partition) vpx_memcpy(&ctx->partition_info, partition, sizeof(PARTITION_INFO)); ctx->best_ref_mv.as_int = ref_mv->as_int; ctx->second_best_ref_mv.as_int = second_ref_mv->as_int; ctx->single_pred_diff = (int)comp_pred_diff[SINGLE_PREDICTION_ONLY]; ctx->comp_pred_diff = (int)comp_pred_diff[COMP_PREDICTION_ONLY]; ctx->hybrid_pred_diff = (int)comp_pred_diff[HYBRID_PREDICTION]; memcpy(ctx->txfm_rd_diff, txfm_size_diff, sizeof(ctx->txfm_rd_diff)); } 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; // 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); } } static void setup_buffer_inter(VP9_COMP *cpi, MACROBLOCK *x, int idx, MV_REFERENCE_FRAME frame_type, enum BlockSize 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], struct scale_factors scale[MAX_REF_FRAMES]) { VP9_COMMON *cm = &cpi->common; YV12_BUFFER_CONFIG *yv12 = &cm->yv12_fb[cpi->common.ref_frame_map[idx]]; MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mode_info_context->mbmi; int use_prev_in_find_mv_refs; // set up scaling factors scale[frame_type] = cpi->common.active_ref_scale[frame_type - 1]; scale[frame_type].x_offset_q4 = (mi_col * MI_SIZE * scale[frame_type].x_num / scale[frame_type].x_den) & 0xf; scale[frame_type].y_offset_q4 = (mi_row * MI_SIZE * scale[frame_type].y_num / scale[frame_type].y_den) & 0xf; // 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[frame_type], yv12, mi_row, mi_col, &scale[frame_type], &scale[frame_type]); // Gets an initial list of candidate vectors from neighbours and orders them use_prev_in_find_mv_refs = cm->width == cm->last_width && cm->height == cm->last_height && !cpi->common.error_resilient_mode; vp9_find_mv_refs(&cpi->common, xd, xd->mode_info_context, use_prev_in_find_mv_refs ? xd->prev_mode_info_context : NULL, frame_type, mbmi->ref_mvs[frame_type], cpi->common.ref_frame_sign_bias); // Candidate refinement carried out at encoder and decoder vp9_find_best_ref_mvs(xd, mbmi->ref_mvs[frame_type], &frame_nearest_mv[frame_type], &frame_near_mv[frame_type]); // 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 (scale[frame_type].x_num == scale[frame_type].x_den && scale[frame_type].y_num == scale[frame_type].y_den) mv_pred(cpi, x, yv12_mb[frame_type][0].buf, yv12->y_stride, frame_type, block_size); } static enum BlockSize get_block_size(int bw, int bh) { if (bw == 4 && bh == 4) return BLOCK_4X4; if (bw == 4 && bh == 8) return BLOCK_4X8; if (bw == 8 && bh == 4) return BLOCK_8X4; if (bw == 8 && bh == 8) return BLOCK_8X8; if (bw == 8 && bh == 16) return BLOCK_8X16; if (bw == 16 && bh == 8) return BLOCK_16X8; if (bw == 16 && bh == 16) return BLOCK_16X16; if (bw == 32 && bh == 32) return BLOCK_32X32; if (bw == 32 && bh == 16) return BLOCK_32X16; if (bw == 16 && bh == 32) return BLOCK_16X32; if (bw == 64 && bh == 32) return BLOCK_64X32; if (bw == 32 && bh == 64) return BLOCK_32X64; if (bw == 64 && bh == 64) return BLOCK_64X64; assert(0); return -1; } static void model_rd_from_var_lapndz(int var, int n, int qstep, int *rate, int *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. // The function is implemented as piecewise approximation to the // exact computation. // TODO(debargha): Implement the functions by interpolating from a // look-up table vp9_clear_system_state(); { double D, R; double s2 = (double) var / n; double s = sqrt(s2); double x = qstep / s; if (x > 1.0) { double y = exp(-x / 2); double y2 = y * y; D = 2.069981728764738 * y2 - 2.764286806516079 * y + 1.003956960819275; R = 0.924056758535089 * y2 + 2.738636469814024 * y - 0.005169662030017; } else { double x2 = x * x; D = 0.075303187668830 * x2 + 0.004296954321112 * x - 0.000413209252807; if (x > 0.125) R = 1 / (-0.03459733614226 * x2 + 0.36561675733603 * x + 0.1626989668625); else R = -1.442252874826093 * log(x) + 1.944647760719664; } if (R < 0) { *rate = 0; *dist = var; } else { *rate = (n * R * 256 + 0.5); *dist = (n * D * s2 + 0.5); } } vp9_clear_system_state(); } static enum BlockSize get_plane_block_size(BLOCK_SIZE_TYPE bsize, struct macroblockd_plane *pd) { const int bwl = b_width_log2(bsize) - pd->subsampling_x; const int bhl = b_height_log2(bsize) - pd->subsampling_y; return get_block_size(4 << bwl, 4 << bhl); } static void model_rd_for_sb(VP9_COMP *cpi, BLOCK_SIZE_TYPE bsize, MACROBLOCK *x, MACROBLOCKD *xd, int *out_rate_sum, int *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. unsigned int sse, var; int i, rate_sum = 0, dist_sum = 0; for (i = 0; i < MAX_MB_PLANE; ++i) { struct macroblock_plane *const p = &x->plane[i]; struct macroblockd_plane *const pd = &xd->plane[i]; // TODO(dkovalev) the same code in get_plane_block_size const int bwl = b_width_log2(bsize) - pd->subsampling_x; const int bhl = b_height_log2(bsize) - pd->subsampling_y; const enum BlockSize bs = get_block_size(4 << bwl, 4 << bhl); int rate, dist; var = cpi->fn_ptr[bs].vf(p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride, &sse); model_rd_from_var_lapndz(var, 16 << (bwl + bhl), pd->dequant[1] >> 3, &rate, &dist); rate_sum += rate; dist_sum += dist; } *out_rate_sum = rate_sum; *out_dist_sum = dist_sum; } static INLINE int get_switchable_rate(VP9_COMMON *cm, MACROBLOCK *x) { MACROBLOCKD *xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mode_info_context->mbmi; const int c = vp9_get_pred_context(cm, xd, PRED_SWITCHABLE_INTERP); const int m = vp9_switchable_interp_map[mbmi->interp_filter]; return SWITCHABLE_INTERP_RATE_FACTOR * x->switchable_interp_costs[c][m]; } static int64_t handle_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE_TYPE bsize, int64_t txfm_cache[], int *rate2, int *distortion, int *skippable, int *compmode_cost, int *rate_y, int *distortion_y, int *rate_uv, int *distortion_uv, int *mode_excluded, int *disable_skip, int mode_index, INTERPOLATIONFILTERTYPE *best_filter, int_mv frame_mv[MB_MODE_COUNT] [MAX_REF_FRAMES], YV12_BUFFER_CONFIG **scaled_ref_frame, int mi_row, int mi_col, int_mv single_newmv[MAX_REF_FRAMES]) { const int bw = 1 << mi_width_log2(bsize), bh = 1 << mi_height_log2(bsize); VP9_COMMON *cm = &cpi->common; MACROBLOCKD *xd = &x->e_mbd; const enum BlockSize block_size = get_plane_block_size(bsize, &xd->plane[0]); const enum BlockSize uv_block_size = get_plane_block_size(bsize, &xd->plane[1]); MB_MODE_INFO *mbmi = &xd->mode_info_context->mbmi; const int is_comp_pred = (mbmi->second_ref_frame > 0); const int num_refs = is_comp_pred ? 2 : 1; const int this_mode = mbmi->mode; int i; int refs[2] = { mbmi->ref_frame, (mbmi->second_ref_frame < 0 ? 0 : mbmi->second_ref_frame) }; int_mv cur_mv[2]; int_mv ref_mv[2]; int64_t this_rd = 0; unsigned char tmp_buf[MAX_MB_PLANE][64 * 64]; int pred_exists = 0; int interpolating_intpel_seen = 0; int intpel_mv; int64_t rd, best_rd = INT64_MAX; switch (this_mode) { case NEWMV: ref_mv[0] = mbmi->ref_mvs[refs[0]][0]; ref_mv[1] = mbmi->ref_mvs[refs[1]][0]; if (is_comp_pred) { #if CONFIG_COMP_INTER_JOINT_SEARCH const int b_sz[BLOCK_SIZE_TYPES][2] = { {4, 4}, {8, 8}, {8, 16}, {16, 8}, {16, 16}, {16, 32}, {32, 16}, {32, 32}, {32, 64}, {64, 32}, {64, 64} }; int ite; // Prediction buffer from second frame. uint8_t *second_pred = vpx_memalign(16, b_sz[bsize][0] * b_sz[bsize][1] * sizeof(uint8_t)); // Do joint motion search in compound mode to get more accurate mv. struct buf_2d backup_yv12[MAX_MB_PLANE] = {{0}}; struct buf_2d backup_second_yv12[MAX_MB_PLANE] = {{0}}; struct buf_2d scaled_first_yv12; if (scaled_ref_frame[0]) { 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]; setup_pre_planes(xd, scaled_ref_frame[0], NULL, mi_row, mi_col, NULL, NULL); } if (scaled_ref_frame[1]) { int i; for (i = 0; i < MAX_MB_PLANE; i++) backup_second_yv12[i] = xd->plane[i].pre[1]; setup_pre_planes(xd, scaled_ref_frame[1], NULL, mi_row, mi_col, NULL, NULL); } xd->scale_factor[0].set_scaled_offsets(&xd->scale_factor[0], mi_row, mi_col); xd->scale_factor[1].set_scaled_offsets(&xd->scale_factor[1], mi_row, mi_col); scaled_first_yv12 = xd->plane[0].pre[0]; // Initialize mv using single prediction mode result. frame_mv[NEWMV][refs[0]].as_int = single_newmv[refs[0]].as_int; frame_mv[NEWMV][refs[1]].as_int = single_newmv[refs[1]].as_int; // Iteration: joint search is done once for each ref frame. // Tried allowing search multiple times iteratively, and break out if // it couldn't find better mv. But tests didn't show noticeable // improvement. for (ite = 0; ite < 2; ite++) { struct buf_2d ref_yv12[2] = {xd->plane[0].pre[0], xd->plane[0].pre[1]}; 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; // Get pred block from second frame. vp9_build_inter_predictor(ref_yv12[!id].buf, ref_yv12[!id].stride, second_pred, b_sz[bsize][0], &frame_mv[NEWMV][refs[!id]], &xd->scale_factor[!id], b_sz[bsize][0], b_sz[bsize][1], 0, &xd->subpix); // Compound motion search on first ref frame. if (id) xd->plane[0].pre[0] = ref_yv12[id]; vp9_clamp_mv_min_max(x, &ref_mv[id]); // Use mv result from single mode as mvp. tmp_mv.as_int = frame_mv[NEWMV][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, sadpb, search_range, &cpi->fn_ptr[block_size], x->nmvjointcost, x->mvcost, &ref_mv[id], second_pred, b_sz[bsize][0], b_sz[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; vp9_find_best_sub_pixel_comp(x, &tmp_mv, &ref_mv[id], x->errorperbit, &cpi->fn_ptr[block_size], x->nmvjointcost, x->mvcost, &dis, &sse, second_pred, b_sz[bsize][0], b_sz[bsize][1]); } frame_mv[NEWMV][refs[id]].as_int = xd->mode_info_context->bmi[0].as_mv[1].as_int = tmp_mv.as_int; if (id) xd->plane[0].pre[0] = scaled_first_yv12; } // restore the predictor if (scaled_ref_frame[0]) { int i; for (i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[0] = backup_yv12[i]; } if (scaled_ref_frame[1]) { int i; for (i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[1] = backup_second_yv12[i]; } vpx_free(second_pred); #endif // CONFIG_COMP_INTER_JOINT_SEARCH if (frame_mv[NEWMV][refs[0]].as_int == INVALID_MV || frame_mv[NEWMV][refs[1]].as_int == INVALID_MV) return INT64_MAX; *rate2 += vp9_mv_bit_cost(&frame_mv[NEWMV][refs[0]], &ref_mv[0], x->nmvjointcost, x->mvcost, 96, x->e_mbd.allow_high_precision_mv); *rate2 += vp9_mv_bit_cost(&frame_mv[NEWMV][refs[1]], &ref_mv[1], x->nmvjointcost, x->mvcost, 96, x->e_mbd.allow_high_precision_mv); } else { struct buf_2d backup_yv12[MAX_MB_PLANE] = {{0}}; int bestsme = INT_MAX; int further_steps, step_param = cpi->sf.first_step; int sadpb = x->sadperbit16; int_mv mvp_full, tmp_mv; int sr = 0; 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; if (scaled_ref_frame[0]) { 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]; setup_pre_planes(xd, scaled_ref_frame[0], NULL, mi_row, mi_col, NULL, NULL); } vp9_clamp_mv_min_max(x, &ref_mv[0]); sr = vp9_init_search_range(cpi->common.width, cpi->common.height); // mvp_full.as_int = ref_mv[0].as_int; mvp_full.as_int = mbmi->ref_mvs[refs[0]][x->mv_best_ref_index[refs[0]]].as_int; mvp_full.as_mv.col >>= 3; mvp_full.as_mv.row >>= 3; // adjust search range according to sr from mv prediction step_param = MAX(step_param, sr); // Further step/diamond searches as necessary further_steps = (cpi->sf.max_step_search_steps - 1) - step_param; bestsme = vp9_full_pixel_diamond(cpi, x, &mvp_full, step_param, sadpb, further_steps, 1, &cpi->fn_ptr[block_size], &ref_mv[0], &tmp_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. */ unsigned int sse; cpi->find_fractional_mv_step(x, &tmp_mv, &ref_mv[0], x->errorperbit, &cpi->fn_ptr[block_size], x->nmvjointcost, x->mvcost, &dis, &sse); } frame_mv[NEWMV][refs[0]].as_int = xd->mode_info_context->bmi[0].as_mv[0].as_int = tmp_mv.as_int; single_newmv[refs[0]].as_int = tmp_mv.as_int; // Add the new motion vector cost to our rolling cost variable *rate2 += vp9_mv_bit_cost(&tmp_mv, &ref_mv[0], x->nmvjointcost, x->mvcost, 96, xd->allow_high_precision_mv); // restore the predictor, if required if (scaled_ref_frame[0]) { int i; for (i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[0] = backup_yv12[i]; } } break; case NEARMV: case NEARESTMV: case ZEROMV: default: break; } for (i = 0; i < num_refs; ++i) { cur_mv[i] = frame_mv[this_mode][refs[i]]; // Clip "next_nearest" so that it does not extend to far out of image if (this_mode == NEWMV) assert(!clamp_mv2(&cur_mv[i], xd)); else clamp_mv2(&cur_mv[i], xd); if (mv_check_bounds(x, &cur_mv[i])) return INT64_MAX; mbmi->mv[i].as_int = cur_mv[i].as_int; } /* 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 */ *compmode_cost = vp9_cost_bit(vp9_get_pred_prob(cm, xd, PRED_COMP), is_comp_pred); *rate2 += vp9_cost_mv_ref(cpi, this_mode, mbmi->mb_mode_context[mbmi->ref_frame]); pred_exists = 0; interpolating_intpel_seen = 0; // Are all MVs integer pel for Y and UV intpel_mv = (mbmi->mv[0].as_mv.row & 15) == 0 && (mbmi->mv[0].as_mv.col & 15) == 0; if (is_comp_pred) intpel_mv &= (mbmi->mv[1].as_mv.row & 15) == 0 && (mbmi->mv[1].as_mv.col & 15) == 0; // Search for best switchable filter by checking the variance of // pred error irrespective of whether the filter will be used if (1) { int i, newbest; int tmp_rate_sum = 0, tmp_dist_sum = 0; for (i = 0; i < VP9_SWITCHABLE_FILTERS; ++i) { int rs = 0; const INTERPOLATIONFILTERTYPE filter = vp9_switchable_interp[i]; const int is_intpel_interp = intpel_mv && vp9_is_interpolating_filter[filter]; mbmi->interp_filter = filter; vp9_setup_interp_filters(xd, mbmi->interp_filter, cm); if (cm->mcomp_filter_type == SWITCHABLE) rs = get_switchable_rate(cm, x); if (interpolating_intpel_seen && is_intpel_interp) { rd = RDCOST(x->rdmult, x->rddiv, rs + tmp_rate_sum, tmp_dist_sum); } else { int rate_sum = 0, dist_sum = 0; 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, rs + rate_sum, dist_sum); if (!interpolating_intpel_seen && is_intpel_interp) { tmp_rate_sum = rate_sum; tmp_dist_sum = dist_sum; } } newbest = i == 0 || rd < best_rd; if (newbest) { best_rd = rd; *best_filter = mbmi->interp_filter; } if ((cm->mcomp_filter_type == SWITCHABLE && newbest) || (cm->mcomp_filter_type != SWITCHABLE && cm->mcomp_filter_type == mbmi->interp_filter)) { int p; for (p = 0; p < MAX_MB_PLANE; p++) { const int y = (MI_SIZE * bh) >> xd->plane[p].subsampling_y; const int x = (MI_SIZE * bw) >> xd->plane[p].subsampling_x; int i; for (i = 0; i < y; i++) vpx_memcpy(&tmp_buf[p][64 * i], xd->plane[p].dst.buf + i * xd->plane[p].dst.stride, x); } pred_exists = 1; } interpolating_intpel_seen |= is_intpel_interp; } } // Set the appripriate filter mbmi->interp_filter = cm->mcomp_filter_type != SWITCHABLE ? cm->mcomp_filter_type : *best_filter; vp9_setup_interp_filters(xd, mbmi->interp_filter, cm); if (pred_exists) { int p; for (p = 0; p < MAX_MB_PLANE; p++) { const int y = (MI_SIZE * bh) >> xd->plane[p].subsampling_y; const int x = (MI_SIZE * bw) >> xd->plane[p].subsampling_x; int i; for (i = 0; i < y; i++) vpx_memcpy(xd->plane[p].dst.buf + i * xd->plane[p].dst.stride, &tmp_buf[p][64 * i], x); } } 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->common.mcomp_filter_type == SWITCHABLE) *rate2 += get_switchable_rate(cm, x); if (cpi->active_map_enabled && x->active_ptr[0] == 0) x->skip = 1; else if (x->encode_breakout) { unsigned int var, sse; int threshold = (xd->plane[0].dequant[1] * xd->plane[0].dequant[1] >> 4); if (threshold < x->encode_breakout) threshold = x->encode_breakout; var = cpi->fn_ptr[block_size].vf(x->plane[0].src.buf, x->plane[0].src.stride, xd->plane[0].dst.buf, xd->plane[0].dst.stride, &sse); if ((int)sse < threshold) { unsigned int q2dc = xd->plane[0].dequant[0]; /* If there is no codeable 2nd order dc or a very small uniform pixel change change */ if ((sse - var < q2dc * q2dc >> 4) || (sse / 2 > var && sse - var < 64)) { // Check u and v to make sure skip is ok int sse2; unsigned int sse2u, sse2v; var = cpi->fn_ptr[uv_block_size].vf(x->plane[1].src.buf, x->plane[1].src.stride, xd->plane[1].dst.buf, xd->plane[1].dst.stride, &sse2u); var = cpi->fn_ptr[uv_block_size].vf(x->plane[2].src.buf, x->plane[1].src.stride, xd->plane[2].dst.buf, xd->plane[1].dst.stride, &sse2v); sse2 = sse2u + sse2v; if (sse2 * 2 < threshold) { x->skip = 1; *distortion = sse + sse2; *rate2 = 500; /* for best_yrd calculation */ *rate_uv = 0; *distortion_uv = sse2; *disable_skip = 1; this_rd = RDCOST(x->rdmult, x->rddiv, *rate2, *distortion); } } } } if (!x->skip) { int skippable_y, skippable_uv; // Y cost and distortion super_block_yrd(cpi, x, rate_y, distortion_y, &skippable_y, bsize, txfm_cache); *rate2 += *rate_y; *distortion += *distortion_y; super_block_uvrd(cm, x, rate_uv, distortion_uv, &skippable_uv, bsize); *rate2 += *rate_uv; *distortion += *distortion_uv; *skippable = skippable_y && skippable_uv; } if (!(*mode_excluded)) { if (is_comp_pred) { *mode_excluded = (cpi->common.comp_pred_mode == SINGLE_PREDICTION_ONLY); } else { *mode_excluded = (cpi->common.comp_pred_mode == COMP_PREDICTION_ONLY); } } return this_rd; // if 0, this will be re-calculated by caller } void vp9_rd_pick_intra_mode_sb(VP9_COMP *cpi, MACROBLOCK *x, int *returnrate, int *returndist, BLOCK_SIZE_TYPE bsize, PICK_MODE_CONTEXT *ctx) { VP9_COMMON *cm = &cpi->common; MACROBLOCKD *xd = &x->e_mbd; int rate_y = 0, rate_uv; int rate_y_tokenonly = 0, rate_uv_tokenonly; int dist_y = 0, dist_uv; int y_skip = 0, uv_skip; int64_t txfm_cache[NB_TXFM_MODES], err; MB_PREDICTION_MODE mode; TX_SIZE txfm_size; int rate4x4_y, rate4x4_y_tokenonly, dist4x4_y; int64_t err4x4 = INT64_MAX; int i; ctx->skip = 0; xd->mode_info_context->mbmi.mode = DC_PRED; err = rd_pick_intra_sby_mode(cpi, x, &rate_y, &rate_y_tokenonly, &dist_y, &y_skip, bsize, txfm_cache); mode = xd->mode_info_context->mbmi.mode; txfm_size = xd->mode_info_context->mbmi.txfm_size; rd_pick_intra_sbuv_mode(cpi, x, &rate_uv, &rate_uv_tokenonly, &dist_uv, &uv_skip, (bsize < BLOCK_SIZE_SB8X8) ? BLOCK_SIZE_SB8X8 : bsize); if (bsize == BLOCK_SIZE_SB8X8) err4x4 = rd_pick_intra4x4mby_modes(cpi, x, &rate4x4_y, &rate4x4_y_tokenonly, &dist4x4_y, err); if (y_skip && uv_skip) { *returnrate = rate_y + rate_uv - rate_y_tokenonly - rate_uv_tokenonly + vp9_cost_bit(vp9_get_pred_prob(cm, xd, PRED_MBSKIP), 1); *returndist = dist_y + (dist_uv >> 2); memset(ctx->txfm_rd_diff, 0, sizeof(x->sb32_context[xd->sb_index].txfm_rd_diff)); xd->mode_info_context->mbmi.mode = mode; xd->mode_info_context->mbmi.txfm_size = txfm_size; } else if (bsize == BLOCK_SIZE_SB8X8 && err4x4 < err) { *returnrate = rate4x4_y + rate_uv + vp9_cost_bit(vp9_get_pred_prob(cm, xd, PRED_MBSKIP), 0); *returndist = dist4x4_y + (dist_uv >> 2); for (i = 0; i < NB_TXFM_MODES; i++) { ctx->txfm_rd_diff[i] = MIN(err4x4, err - txfm_cache[i]); } xd->mode_info_context->mbmi.txfm_size = TX_4X4; } else { *returnrate = rate_y + rate_uv + vp9_cost_bit(vp9_get_pred_prob(cm, xd, PRED_MBSKIP), 0); *returndist = dist_y + (dist_uv >> 2); for (i = 0; i < NB_TXFM_MODES; i++) { ctx->txfm_rd_diff[i] = MIN(err4x4, err - txfm_cache[i]); } xd->mode_info_context->mbmi.txfm_size = txfm_size; xd->mode_info_context->mbmi.mode = mode; } vpx_memcpy(&ctx->mic, xd->mode_info_context, sizeof(MODE_INFO)); } int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x, int mi_row, int mi_col, int *returnrate, int *returndistortion, BLOCK_SIZE_TYPE bsize, PICK_MODE_CONTEXT *ctx) { VP9_COMMON *cm = &cpi->common; MACROBLOCKD *xd = &x->e_mbd; MB_MODE_INFO *mbmi = &xd->mode_info_context->mbmi; const enum BlockSize block_size = get_plane_block_size(bsize, &xd->plane[0]); MB_PREDICTION_MODE this_mode; MB_PREDICTION_MODE best_mode = DC_PRED; MV_REFERENCE_FRAME ref_frame, second_ref = INTRA_FRAME; unsigned char segment_id = xd->mode_info_context->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]; static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG, VP9_ALT_FLAG }; int idx_list[4] = {0, cpi->lst_fb_idx, cpi->gld_fb_idx, cpi->alt_fb_idx}; int64_t best_rd = INT64_MAX; int64_t best_txfm_rd[NB_TXFM_MODES]; int64_t best_txfm_diff[NB_TXFM_MODES]; int64_t best_pred_diff[NB_PREDICTION_TYPES]; int64_t best_pred_rd[NB_PREDICTION_TYPES]; MB_MODE_INFO best_mbmode; int j; int mode_index, best_mode_index = 0; unsigned int ref_costs[MAX_REF_FRAMES]; int64_t best_overall_rd = INT64_MAX; INTERPOLATIONFILTERTYPE best_filter = SWITCHABLE; INTERPOLATIONFILTERTYPE tmp_best_filter = SWITCHABLE; int rate_uv_intra[TX_SIZE_MAX_SB], rate_uv_tokenonly[TX_SIZE_MAX_SB]; int dist_uv[TX_SIZE_MAX_SB], skip_uv[TX_SIZE_MAX_SB]; MB_PREDICTION_MODE mode_uv[TX_SIZE_MAX_SB]; struct scale_factors scale_factor[4]; unsigned int ref_frame_mask = 0; unsigned int mode_mask = 0; int64_t mode_distortions[MB_MODE_COUNT] = {-1}; int64_t frame_distortions[MAX_REF_FRAMES] = {-1}; int intra_cost_penalty = 20 * vp9_dc_quant(cpi->common.base_qindex, cpi->common.y_dc_delta_q); int_mv seg_mvs[4][MAX_REF_FRAMES - 1]; union b_mode_info best_bmodes[4]; PARTITION_INFO best_partition; for (i = 0; i < 4; i++) { int j; for (j = 0; j < MAX_REF_FRAMES - 1; j++) seg_mvs[i][j].as_int = INVALID_MV; } // Everywhere the flag is set the error is much higher than its neighbors. ctx->frames_with_high_error = 0; ctx->modes_with_high_error = 0; xd->mode_info_context->mbmi.segment_id = segment_id; estimate_ref_frame_costs(cpi, segment_id, ref_costs); vpx_memset(&best_mbmode, 0, sizeof(best_mbmode)); vpx_memset(&single_newmv, 0, sizeof(single_newmv)); for (i = 0; i < NB_PREDICTION_TYPES; ++i) best_pred_rd[i] = INT64_MAX; for (i = 0; i < NB_TXFM_MODES; i++) best_txfm_rd[i] = INT64_MAX; // Create a mask set to 1 for each frame used by a smaller resolution. if (cpi->speed > 0) { switch (block_size) { case BLOCK_64X64: for (i = 0; i < 4; i++) { for (j = 0; j < 4; j++) { ref_frame_mask |= x->mb_context[i][j].frames_with_high_error; mode_mask |= x->mb_context[i][j].modes_with_high_error; } } for (i = 0; i < 4; i++) { ref_frame_mask |= x->sb32_context[i].frames_with_high_error; mode_mask |= x->sb32_context[i].modes_with_high_error; } break; case BLOCK_32X32: for (i = 0; i < 4; i++) { ref_frame_mask |= x->mb_context[xd->sb_index][i].frames_with_high_error; mode_mask |= x->mb_context[xd->sb_index][i].modes_with_high_error; } break; default: // Until we handle all block sizes set it to present; ref_frame_mask = 0; mode_mask = 0; break; } ref_frame_mask = ~ref_frame_mask; mode_mask = ~mode_mask; } for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ref_frame++) { if (cpi->ref_frame_flags & flag_list[ref_frame]) { setup_buffer_inter(cpi, x, idx_list[ref_frame], ref_frame, block_size, mi_row, mi_col, frame_mv[NEARESTMV], frame_mv[NEARMV], yv12_mb, scale_factor); } frame_mv[NEWMV][ref_frame].as_int = INVALID_MV; frame_mv[ZEROMV][ref_frame].as_int = 0; } if (cpi->speed == 0 || (cpi->speed > 0 && (ref_frame_mask & (1 << INTRA_FRAME)))) { mbmi->mode = DC_PRED; for (i = 0; i <= (bsize < BLOCK_SIZE_MB16X16 ? TX_4X4 : (bsize < BLOCK_SIZE_SB32X32 ? TX_8X8 : (bsize < BLOCK_SIZE_SB64X64 ? TX_16X16 : TX_32X32))); i++) { mbmi->txfm_size = i; rd_pick_intra_sbuv_mode(cpi, x, &rate_uv_intra[i], &rate_uv_tokenonly[i], &dist_uv[i], &skip_uv[i], bsize); mode_uv[i] = mbmi->uv_mode; } } 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 other_cost = 0; int compmode_cost = 0; int rate2 = 0, rate_y = 0, rate_uv = 0; int distortion2 = 0, distortion_y = 0, distortion_uv = 0; int skippable; int64_t txfm_cache[NB_TXFM_MODES]; // Test best rd so far against threshold for trying this mode. if (best_rd <= cpi->rd_threshes[mode_index] || cpi->rd_threshes[mode_index] == INT_MAX) { continue; } x->skip = 0; this_mode = vp9_mode_order[mode_index].mode; ref_frame = vp9_mode_order[mode_index].ref_frame; if (!(ref_frame == INTRA_FRAME || (cpi->ref_frame_flags & flag_list[ref_frame]))) { continue; } if (cpi->speed > 0) { if (!(ref_frame_mask & (1 << ref_frame))) { continue; } if (!(mode_mask & (1 << this_mode))) { continue; } if (vp9_mode_order[mode_index].second_ref_frame != NONE && !(ref_frame_mask & (1 << vp9_mode_order[mode_index].second_ref_frame))) { continue; } } mbmi->ref_frame = ref_frame; mbmi->second_ref_frame = vp9_mode_order[mode_index].second_ref_frame; // TODO(jingning, jkoleszar): scaling reference frame not supported for // SPLITMV. if (mbmi->ref_frame > 0 && (scale_factor[mbmi->ref_frame].x_num != scale_factor[mbmi->ref_frame].x_den || scale_factor[mbmi->ref_frame].y_num != scale_factor[mbmi->ref_frame].y_den) && this_mode == SPLITMV) continue; if (mbmi->second_ref_frame > 0 && (scale_factor[mbmi->second_ref_frame].x_num != scale_factor[mbmi->second_ref_frame].x_den || scale_factor[mbmi->second_ref_frame].y_num != scale_factor[mbmi->second_ref_frame].y_den) && this_mode == SPLITMV) continue; set_scale_factors(xd, mbmi->ref_frame, mbmi->second_ref_frame, scale_factor); comp_pred = mbmi->second_ref_frame > INTRA_FRAME; mbmi->mode = this_mode; mbmi->uv_mode = DC_PRED; // Evaluate all sub-pel filters irrespective of whether we can use // them for this frame. mbmi->interp_filter = cm->mcomp_filter_type; vp9_setup_interp_filters(xd, mbmi->interp_filter, &cpi->common); if (bsize != BLOCK_SIZE_SB8X8 && (this_mode == I4X4_PRED || this_mode == SPLITMV)) continue; if (comp_pred) { if (ref_frame == ALTREF_FRAME) { second_ref = LAST_FRAME; } else { second_ref = ref_frame + 1; } if (!(cpi->ref_frame_flags & flag_list[second_ref])) continue; mbmi->second_ref_frame = second_ref; set_scale_factors(xd, mbmi->ref_frame, mbmi->second_ref_frame, scale_factor); mode_excluded = mode_excluded ? mode_excluded : cm->comp_pred_mode == SINGLE_PREDICTION_ONLY; } else { // mbmi->second_ref_frame = vp9_mode_order[mode_index].second_ref_frame; if (ref_frame != INTRA_FRAME) { if (mbmi->second_ref_frame != INTRA_FRAME) mode_excluded = mode_excluded ? mode_excluded : cm->comp_pred_mode == COMP_PREDICTION_ONLY; } } // Select predictors 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][i]; } // If the segment reference frame feature is enabled.... // then do nothing if the current ref frame is not allowed.. if (vp9_segfeature_active(xd, segment_id, SEG_LVL_REF_FRAME) && !vp9_check_segref(xd, segment_id, 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(xd, segment_id, SEG_LVL_SKIP) && (this_mode != ZEROMV)) { 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(xd, 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 if (cpi->is_src_frame_alt_ref && (cpi->oxcf.arnr_max_frames == 0)) { if (this_mode != ZEROMV || ref_frame != ALTREF_FRAME) { continue; } } } if (this_mode == I4X4_PRED) { int rate; // Note the rate value returned here includes the cost of coding // the I4X4_PRED mode : x->mbmode_cost[xd->frame_type][I4X4_PRED]; assert(bsize == BLOCK_SIZE_SB8X8); mbmi->txfm_size = TX_4X4; rd_pick_intra4x4mby_modes(cpi, x, &rate, &rate_y, &distortion_y, INT64_MAX); rate2 += rate; rate2 += intra_cost_penalty; distortion2 += distortion_y; rate2 += rate_uv_intra[TX_4X4]; rate_uv = rate_uv_intra[TX_4X4]; distortion2 += dist_uv[TX_4X4]; distortion_uv = dist_uv[TX_4X4]; mbmi->uv_mode = mode_uv[TX_4X4]; } else if (ref_frame == INTRA_FRAME) { TX_SIZE uv_tx; vp9_build_intra_predictors_sby_s(xd, bsize); super_block_yrd(cpi, x, &rate_y, &distortion_y, &skippable, bsize, txfm_cache); uv_tx = mbmi->txfm_size; if (bsize < BLOCK_SIZE_MB16X16 && uv_tx == TX_8X8) uv_tx = TX_4X4; if (bsize < BLOCK_SIZE_SB32X32 && uv_tx == TX_16X16) uv_tx = TX_8X8; else if (bsize < BLOCK_SIZE_SB64X64 && uv_tx == TX_32X32) uv_tx = TX_16X16; rate_uv = rate_uv_intra[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[cm->frame_type][mbmi->mode] + rate_uv; if (mbmi->mode != DC_PRED && mbmi->mode != TM_PRED) rate2 += intra_cost_penalty; distortion2 = distortion_y + distortion_uv; } else if (this_mode == SPLITMV) { const int is_comp_pred = mbmi->second_ref_frame > 0; int rate, 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; int tmp_best_distortion = INT_MAX, tmp_best_skippable = 0; int switchable_filter_index; int_mv *second_ref = is_comp_pred ? &mbmi->ref_mvs[mbmi->second_ref_frame][0] : NULL; union b_mode_info tmp_best_bmodes[16]; MB_MODE_INFO tmp_best_mbmode; PARTITION_INFO tmp_best_partition; int pred_exists = 0; int uv_skippable; this_rd_thresh = (mbmi->ref_frame == LAST_FRAME) ? cpi->rd_threshes[THR_NEWMV] : cpi->rd_threshes[THR_NEWA]; this_rd_thresh = (mbmi->ref_frame == GOLDEN_FRAME) ? cpi->rd_threshes[THR_NEWG] : this_rd_thresh; xd->mode_info_context->mbmi.txfm_size = TX_4X4; for (switchable_filter_index = 0; switchable_filter_index < VP9_SWITCHABLE_FILTERS; ++switchable_filter_index) { int newbest; mbmi->interp_filter = vp9_switchable_interp[switchable_filter_index]; vp9_setup_interp_filters(xd, mbmi->interp_filter, &cpi->common); tmp_rd = rd_pick_best_mbsegmentation(cpi, x, &mbmi->ref_mvs[mbmi->ref_frame][0], second_ref, INT64_MAX, &rate, &rate_y, &distortion, &skippable, (int)this_rd_thresh, seg_mvs); if (cpi->common.mcomp_filter_type == SWITCHABLE) { const int rs = get_switchable_rate(cm, x); tmp_rd += RDCOST(x->rdmult, x->rddiv, rs, 0); } newbest = (tmp_rd < tmp_best_rd); if (newbest) { tmp_best_filter = mbmi->interp_filter; tmp_best_rd = tmp_rd; } if ((newbest && cm->mcomp_filter_type == SWITCHABLE) || (mbmi->interp_filter == cm->mcomp_filter_type && cm->mcomp_filter_type != SWITCHABLE)) { tmp_best_rdu = tmp_rd; tmp_best_rate = rate; tmp_best_ratey = rate_y; tmp_best_distortion = distortion; tmp_best_skippable = skippable; vpx_memcpy(&tmp_best_mbmode, mbmi, sizeof(MB_MODE_INFO)); vpx_memcpy(&tmp_best_partition, x->partition_info, sizeof(PARTITION_INFO)); for (i = 0; i < 4; i++) { tmp_best_bmodes[i] = xd->mode_info_context->bmi[i]; } pred_exists = 1; } } // switchable_filter_index loop mbmi->interp_filter = (cm->mcomp_filter_type == SWITCHABLE ? tmp_best_filter : cm->mcomp_filter_type); vp9_setup_interp_filters(xd, mbmi->interp_filter, &cpi->common); 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, &mbmi->ref_mvs[mbmi->ref_frame][0], second_ref, INT64_MAX, &rate, &rate_y, &distortion, &skippable, (int)this_rd_thresh, seg_mvs); } else { if (cpi->common.mcomp_filter_type == SWITCHABLE) { int rs = get_switchable_rate(cm, x); tmp_best_rdu -= RDCOST(x->rdmult, x->rddiv, rs, 0); } tmp_rd = tmp_best_rdu; rate = tmp_best_rate; rate_y = tmp_best_ratey; distortion = tmp_best_distortion; skippable = tmp_best_skippable; vpx_memcpy(mbmi, &tmp_best_mbmode, sizeof(MB_MODE_INFO)); vpx_memcpy(x->partition_info, &tmp_best_partition, sizeof(PARTITION_INFO)); for (i = 0; i < 4; i++) { xd->mode_info_context->bmi[i] = tmp_best_bmodes[i]; } } rate2 += rate; distortion2 += distortion; if (cpi->common.mcomp_filter_type == SWITCHABLE) rate2 += get_switchable_rate(cm, x); // 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_SIZE_SB8X8); vp9_subtract_sbuv(x, BLOCK_SIZE_SB8X8); super_block_uvrd_for_txfm(cm, x, &rate_uv, &distortion_uv, &uv_skippable, BLOCK_SIZE_SB8X8, TX_4X4); rate2 += rate_uv; distortion2 += distortion_uv; skippable = skippable && uv_skippable; if (!mode_excluded) { if (is_comp_pred) mode_excluded = cpi->common.comp_pred_mode == SINGLE_PREDICTION_ONLY; else mode_excluded = cpi->common.comp_pred_mode == COMP_PREDICTION_ONLY; } compmode_cost = vp9_cost_bit(vp9_get_pred_prob(cm, xd, PRED_COMP), is_comp_pred); mbmi->mode = this_mode; } else { YV12_BUFFER_CONFIG *scaled_ref_frame[2] = {NULL, NULL}; int fb; if (mbmi->ref_frame == LAST_FRAME) { fb = cpi->lst_fb_idx; } else if (mbmi->ref_frame == GOLDEN_FRAME) { fb = cpi->gld_fb_idx; } else { fb = cpi->alt_fb_idx; } if (cpi->scaled_ref_idx[fb] != cm->ref_frame_map[fb]) scaled_ref_frame[0] = &cm->yv12_fb[cpi->scaled_ref_idx[fb]]; if (comp_pred) { if (mbmi->second_ref_frame == LAST_FRAME) { fb = cpi->lst_fb_idx; } else if (mbmi->second_ref_frame == GOLDEN_FRAME) { fb = cpi->gld_fb_idx; } else { fb = cpi->alt_fb_idx; } if (cpi->scaled_ref_idx[fb] != cm->ref_frame_map[fb]) scaled_ref_frame[1] = &cm->yv12_fb[cpi->scaled_ref_idx[fb]]; } this_rd = handle_inter_mode(cpi, x, bsize, txfm_cache, &rate2, &distortion2, &skippable, &compmode_cost, &rate_y, &distortion_y, &rate_uv, &distortion_uv, &mode_excluded, &disable_skip, mode_index, &tmp_best_filter, frame_mv, scaled_ref_frame, mi_row, mi_col, single_newmv); if (this_rd == INT64_MAX) continue; } if (cpi->common.comp_pred_mode == HYBRID_PREDICTION) { rate2 += compmode_cost; } // Estimate the reference frame signaling cost and add it // to the rolling cost variable. rate2 += ref_costs[xd->mode_info_context->mbmi.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. int mb_skip_allowed; // Is Mb level skip allowed (i.e. not coded at segment level). mb_skip_allowed = !vp9_segfeature_active(xd, 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_pred_prob(cm, xd, PRED_MBSKIP); if (skip_prob) { prob_skip_cost = vp9_cost_bit(skip_prob, 1); rate2 += prob_skip_cost; other_cost += prob_skip_cost; } } } else if (mb_skip_allowed) { // Add in the cost of the no skip flag. int prob_skip_cost = vp9_cost_bit(vp9_get_pred_prob(cm, xd, PRED_MBSKIP), 0); rate2 += prob_skip_cost; other_cost += prob_skip_cost; } // Calculate the final RD estimate for this mode. this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2); } #if 0 // Keep record of best intra distortion if ((xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) && (this_rd < best_intra_rd)) { best_intra_rd = this_rd; *returnintra = distortion2; } #endif if (!disable_skip && mbmi->ref_frame == INTRA_FRAME) for (i = 0; i < NB_PREDICTION_TYPES; ++i) best_pred_rd[i] = MIN(best_pred_rd[i], this_rd); if (this_rd < best_overall_rd) { best_overall_rd = this_rd; best_filter = tmp_best_filter; best_mode = this_mode; } // Store the respective mode distortions for later use. if (mode_distortions[this_mode] == -1 || distortion2 < mode_distortions[this_mode]) { mode_distortions[this_mode] = distortion2; } if (frame_distortions[mbmi->ref_frame] == -1 || distortion2 < frame_distortions[mbmi->ref_frame]) { frame_distortions[mbmi->ref_frame] = distortion2; } // Did this mode help.. i.e. is it the new best mode if (this_rd < best_rd || x->skip) { if (!mode_excluded) { // Note index of best mode so far best_mode_index = mode_index; if (this_mode <= I4X4_PRED) { /* required for left and above block mv */ mbmi->mv[0].as_int = 0; } other_cost += ref_costs[xd->mode_info_context->mbmi.ref_frame]; *returnrate = rate2; *returndistortion = distortion2; best_rd = this_rd; vpx_memcpy(&best_mbmode, mbmi, sizeof(MB_MODE_INFO)); vpx_memcpy(&best_partition, x->partition_info, sizeof(PARTITION_INFO)); if (this_mode == I4X4_PRED || this_mode == SPLITMV) { for (i = 0; i < 4; i++) { best_bmodes[i] = xd->mode_info_context->bmi[i]; } } } #if 0 // Testing this mode gave rise to an improvement in best error score. // Lower threshold a bit for next time cpi->rd_thresh_mult[mode_index] = (cpi->rd_thresh_mult[mode_index] >= (MIN_THRESHMULT + 2)) ? cpi->rd_thresh_mult[mode_index] - 2 : MIN_THRESHMULT; cpi->rd_threshes[mode_index] = (cpi->rd_baseline_thresh[mode_index] >> 7) * cpi->rd_thresh_mult[mode_index]; #endif } else { // If the mode did not help improve the best error case then // raise the threshold for testing that mode next time around. #if 0 cpi->rd_thresh_mult[mode_index] += 4; if (cpi->rd_thresh_mult[mode_index] > MAX_THRESHMULT) cpi->rd_thresh_mult[mode_index] = MAX_THRESHMULT; cpi->rd_threshes[mode_index] = (cpi->rd_baseline_thresh[mode_index] >> 7) * cpi->rd_thresh_mult[mode_index]; #endif } /* keep record of best compound/single-only prediction */ if (!disable_skip && mbmi->ref_frame != INTRA_FRAME) { int single_rd, hybrid_rd, single_rate, hybrid_rate; if (cpi->common.comp_pred_mode == HYBRID_PREDICTION) { 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 (mbmi->second_ref_frame <= INTRA_FRAME && single_rd < best_pred_rd[SINGLE_PREDICTION_ONLY]) { best_pred_rd[SINGLE_PREDICTION_ONLY] = single_rd; } else if (mbmi->second_ref_frame > INTRA_FRAME && single_rd < best_pred_rd[COMP_PREDICTION_ONLY]) { best_pred_rd[COMP_PREDICTION_ONLY] = single_rd; } if (hybrid_rd < best_pred_rd[HYBRID_PREDICTION]) best_pred_rd[HYBRID_PREDICTION] = hybrid_rd; } /* keep record of best txfm size */ if (bsize < BLOCK_SIZE_SB32X32) { if (bsize < BLOCK_SIZE_MB16X16) { if (this_mode == SPLITMV || this_mode == I4X4_PRED) txfm_cache[ALLOW_8X8] = txfm_cache[ONLY_4X4]; txfm_cache[ALLOW_16X16] = txfm_cache[ALLOW_8X8]; } txfm_cache[ALLOW_32X32] = txfm_cache[ALLOW_16X16]; } if (!mode_excluded && this_rd != INT64_MAX) { for (i = 0; i < NB_TXFM_MODES; i++) { int64_t adj_rd; if (this_mode != I4X4_PRED) { adj_rd = this_rd + txfm_cache[i] - txfm_cache[cm->txfm_mode]; } else { adj_rd = this_rd; } if (adj_rd < best_txfm_rd[i]) best_txfm_rd[i] = adj_rd; } } if (x->skip && !mode_excluded) break; } // Flag all modes that have a distortion thats > 2x the best we found at // this level. for (mode_index = 0; mode_index < MB_MODE_COUNT; ++mode_index) { if (mode_index == NEARESTMV || mode_index == NEARMV || mode_index == NEWMV || mode_index == SPLITMV) continue; if (mode_distortions[mode_index] > 2 * *returndistortion) { ctx->modes_with_high_error |= (1 << mode_index); } } // Flag all ref frames that have a distortion thats > 2x the best we found at // this level. for (ref_frame = INTRA_FRAME; ref_frame <= ALTREF_FRAME; ref_frame++) { if (frame_distortions[ref_frame] > 2 * *returndistortion) { ctx->frames_with_high_error |= (1 << ref_frame); } } assert((cm->mcomp_filter_type == SWITCHABLE) || (cm->mcomp_filter_type == best_mbmode.interp_filter) || (best_mbmode.mode <= I4X4_PRED)); // Accumulate filter usage stats // TODO(agrange): Use RD criteria to select interpolation filter mode. if (is_inter_mode(best_mode)) ++cpi->best_switchable_interp_count[vp9_switchable_interp_map[best_filter]]; // TODO(rbultje) integrate with RD thresholding #if 0 // Reduce the activation RD thresholds for the best choice mode if ((cpi->rd_baseline_thresh[best_mode_index] > 0) && (cpi->rd_baseline_thresh[best_mode_index] < (INT_MAX >> 2))) { int best_adjustment = (cpi->rd_thresh_mult[best_mode_index] >> 2); cpi->rd_thresh_mult[best_mode_index] = (cpi->rd_thresh_mult[best_mode_index] >= (MIN_THRESHMULT + best_adjustment)) ? cpi->rd_thresh_mult[best_mode_index] - best_adjustment : MIN_THRESHMULT; cpi->rd_threshes[best_mode_index] = (cpi->rd_baseline_thresh[best_mode_index] >> 7) * cpi->rd_thresh_mult[best_mode_index]; } #endif // This code forces Altref,0,0 and skip for the frame that overlays a // an alrtef unless Altref is filtered. However, this is unsafe if // segment level coding of ref frame is enabled for this segment. if (!vp9_segfeature_active(xd, segment_id, SEG_LVL_REF_FRAME) && cpi->is_src_frame_alt_ref && (cpi->oxcf.arnr_max_frames == 0) && (best_mbmode.mode != ZEROMV || best_mbmode.ref_frame != ALTREF_FRAME)) { mbmi->mode = ZEROMV; mbmi->ref_frame = ALTREF_FRAME; mbmi->second_ref_frame = NONE; mbmi->mv[0].as_int = 0; mbmi->uv_mode = DC_PRED; mbmi->mb_skip_coeff = 1; if (cm->txfm_mode == TX_MODE_SELECT) { if (bsize >= BLOCK_SIZE_SB32X32) mbmi->txfm_size = TX_32X32; else if (bsize >= BLOCK_SIZE_MB16X16) mbmi->txfm_size = TX_16X16; else mbmi->txfm_size = TX_8X8; } vpx_memset(best_txfm_diff, 0, sizeof(best_txfm_diff)); vpx_memset(best_pred_diff, 0, sizeof(best_pred_diff)); goto end; } // macroblock modes vpx_memcpy(mbmi, &best_mbmode, sizeof(MB_MODE_INFO)); if (best_mbmode.mode == I4X4_PRED) { for (i = 0; i < 4; i++) { xd->mode_info_context->bmi[i].as_mode = best_bmodes[i].as_mode; } } if (best_mbmode.mode == SPLITMV) { for (i = 0; i < 4; i++) xd->mode_info_context->bmi[i].as_mv[0].as_int = best_bmodes[i].as_mv[0].as_int; if (mbmi->second_ref_frame > 0) for (i = 0; i < 4; i++) xd->mode_info_context->bmi[i].as_mv[1].as_int = best_bmodes[i].as_mv[1].as_int; vpx_memcpy(x->partition_info, &best_partition, sizeof(PARTITION_INFO)); mbmi->mv[0].as_int = x->partition_info->bmi[3].mv.as_int; mbmi->mv[1].as_int = x->partition_info->bmi[3].second_mv.as_int; } for (i = 0; i < NB_PREDICTION_TYPES; ++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 < NB_TXFM_MODES; i++) { if (best_txfm_rd[i] == INT64_MAX) best_txfm_diff[i] = 0; else best_txfm_diff[i] = best_rd - best_txfm_rd[i]; } } else { vpx_memset(best_txfm_diff, 0, sizeof(best_txfm_diff)); } end: set_scale_factors(xd, mbmi->ref_frame, mbmi->second_ref_frame, scale_factor); store_coding_context(x, ctx, best_mode_index, &best_partition, &mbmi->ref_mvs[mbmi->ref_frame][0], &mbmi->ref_mvs[mbmi->second_ref_frame < 0 ? 0 : mbmi->second_ref_frame][0], best_pred_diff, best_txfm_diff); return best_rd; }