| /* |
| * 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 "./vp9_rtcd.h" |
| #include "./vpx_config.h" |
| |
| #include "vpx_mem/vpx_mem.h" |
| |
| #include "vp9/common/vp9_idct.h" |
| #include "vp9/common/vp9_reconinter.h" |
| #include "vp9/common/vp9_reconintra.h" |
| #include "vp9/common/vp9_systemdependent.h" |
| |
| #include "vp9/encoder/vp9_dct.h" |
| #include "vp9/encoder/vp9_encodemb.h" |
| #include "vp9/encoder/vp9_quantize.h" |
| #include "vp9/encoder/vp9_rdopt.h" |
| #include "vp9/encoder/vp9_tokenize.h" |
| |
| void vp9_subtract_block_c(int rows, int cols, |
| int16_t *diff_ptr, ptrdiff_t diff_stride, |
| const uint8_t *src_ptr, ptrdiff_t src_stride, |
| const uint8_t *pred_ptr, ptrdiff_t pred_stride) { |
| int r, c; |
| |
| for (r = 0; r < rows; r++) { |
| for (c = 0; c < cols; c++) |
| diff_ptr[c] = src_ptr[c] - pred_ptr[c]; |
| |
| diff_ptr += diff_stride; |
| pred_ptr += pred_stride; |
| src_ptr += src_stride; |
| } |
| } |
| |
| static void subtract_plane(MACROBLOCK *x, BLOCK_SIZE bsize, int plane) { |
| struct macroblock_plane *const p = &x->plane[plane]; |
| const MACROBLOCKD *const xd = &x->e_mbd; |
| const struct macroblockd_plane *const pd = &xd->plane[plane]; |
| const int bw = plane_block_width(bsize, pd); |
| const int bh = plane_block_height(bsize, pd); |
| |
| vp9_subtract_block(bh, bw, p->src_diff, bw, |
| p->src.buf, p->src.stride, |
| pd->dst.buf, pd->dst.stride); |
| } |
| |
| void vp9_subtract_sby(MACROBLOCK *x, BLOCK_SIZE bsize) { |
| subtract_plane(x, bsize, 0); |
| } |
| |
| void vp9_subtract_sbuv(MACROBLOCK *x, BLOCK_SIZE bsize) { |
| int i; |
| |
| for (i = 1; i < MAX_MB_PLANE; i++) |
| subtract_plane(x, bsize, i); |
| } |
| |
| void vp9_subtract_sb(MACROBLOCK *x, BLOCK_SIZE bsize) { |
| vp9_subtract_sby(x, bsize); |
| vp9_subtract_sbuv(x, bsize); |
| } |
| |
| #define RDTRUNC(RM, DM, R, D) ((128 + (R) * (RM)) & 0xFF) |
| typedef struct vp9_token_state vp9_token_state; |
| |
| struct vp9_token_state { |
| int rate; |
| int error; |
| int next; |
| signed char token; |
| short qc; |
| }; |
| |
| // TODO(jimbankoski): experiment to find optimal RD numbers. |
| #define Y1_RD_MULT 4 |
| #define UV_RD_MULT 2 |
| |
| static const int plane_rd_mult[4] = { |
| Y1_RD_MULT, |
| UV_RD_MULT, |
| }; |
| |
| #define UPDATE_RD_COST()\ |
| {\ |
| rd_cost0 = RDCOST(rdmult, rddiv, rate0, error0);\ |
| rd_cost1 = RDCOST(rdmult, rddiv, rate1, error1);\ |
| if (rd_cost0 == rd_cost1) {\ |
| rd_cost0 = RDTRUNC(rdmult, rddiv, rate0, error0);\ |
| rd_cost1 = RDTRUNC(rdmult, rddiv, rate1, error1);\ |
| }\ |
| } |
| |
| // This function is a place holder for now but may ultimately need |
| // to scan previous tokens to work out the correct context. |
| static int trellis_get_coeff_context(const int16_t *scan, |
| const int16_t *nb, |
| int idx, int token, |
| uint8_t *token_cache) { |
| int bak = token_cache[scan[idx]], pt; |
| token_cache[scan[idx]] = vp9_pt_energy_class[token]; |
| pt = get_coef_context(nb, token_cache, idx + 1); |
| token_cache[scan[idx]] = bak; |
| return pt; |
| } |
| |
| static void optimize_b(MACROBLOCK *mb, |
| int plane, int block, BLOCK_SIZE plane_bsize, |
| ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l, |
| TX_SIZE tx_size) { |
| MACROBLOCKD *const xd = &mb->e_mbd; |
| struct macroblockd_plane *pd = &xd->plane[plane]; |
| const int ref = is_inter_block(&xd->mi_8x8[0]->mbmi); |
| vp9_token_state tokens[1025][2]; |
| unsigned best_index[1025][2]; |
| const int16_t *coeff_ptr = BLOCK_OFFSET(mb->plane[plane].coeff, block); |
| int16_t *qcoeff_ptr; |
| int16_t *dqcoeff_ptr; |
| int eob = pd->eobs[block], final_eob, sz = 0; |
| const int i0 = 0; |
| int rc, x, next, i; |
| int64_t rdmult, rddiv, rd_cost0, rd_cost1; |
| int rate0, rate1, error0, error1, t0, t1; |
| int best, band, pt; |
| PLANE_TYPE type = pd->plane_type; |
| int err_mult = plane_rd_mult[type]; |
| const int default_eob = 16 << (tx_size << 1); |
| const int16_t *scan, *nb; |
| const int mul = 1 + (tx_size == TX_32X32); |
| uint8_t token_cache[1024]; |
| const int16_t *dequant_ptr = pd->dequant; |
| const uint8_t *const band_translate = get_band_translate(tx_size); |
| |
| assert((!type && !plane) || (type && plane)); |
| dqcoeff_ptr = BLOCK_OFFSET(pd->dqcoeff, block); |
| qcoeff_ptr = BLOCK_OFFSET(pd->qcoeff, block); |
| get_scan(xd, tx_size, type, block, &scan, &nb); |
| assert(eob <= default_eob); |
| |
| /* Now set up a Viterbi trellis to evaluate alternative roundings. */ |
| rdmult = mb->rdmult * err_mult; |
| if (mb->e_mbd.mi_8x8[0]->mbmi.ref_frame[0] == INTRA_FRAME) |
| rdmult = (rdmult * 9) >> 4; |
| rddiv = mb->rddiv; |
| /* Initialize the sentinel node of the trellis. */ |
| tokens[eob][0].rate = 0; |
| tokens[eob][0].error = 0; |
| tokens[eob][0].next = default_eob; |
| tokens[eob][0].token = DCT_EOB_TOKEN; |
| tokens[eob][0].qc = 0; |
| *(tokens[eob] + 1) = *(tokens[eob] + 0); |
| next = eob; |
| for (i = 0; i < eob; i++) |
| token_cache[scan[i]] = vp9_pt_energy_class[vp9_dct_value_tokens_ptr[ |
| qcoeff_ptr[scan[i]]].token]; |
| |
| for (i = eob; i-- > i0;) { |
| int base_bits, d2, dx; |
| |
| rc = scan[i]; |
| x = qcoeff_ptr[rc]; |
| /* Only add a trellis state for non-zero coefficients. */ |
| if (x) { |
| int shortcut = 0; |
| error0 = tokens[next][0].error; |
| error1 = tokens[next][1].error; |
| /* Evaluate the first possibility for this state. */ |
| rate0 = tokens[next][0].rate; |
| rate1 = tokens[next][1].rate; |
| t0 = (vp9_dct_value_tokens_ptr + x)->token; |
| /* Consider both possible successor states. */ |
| if (next < default_eob) { |
| band = band_translate[i + 1]; |
| pt = trellis_get_coeff_context(scan, nb, i, t0, token_cache); |
| rate0 += |
| mb->token_costs[tx_size][type][ref][band][0][pt] |
| [tokens[next][0].token]; |
| rate1 += |
| mb->token_costs[tx_size][type][ref][band][0][pt] |
| [tokens[next][1].token]; |
| } |
| UPDATE_RD_COST(); |
| /* And pick the best. */ |
| best = rd_cost1 < rd_cost0; |
| base_bits = *(vp9_dct_value_cost_ptr + x); |
| dx = mul * (dqcoeff_ptr[rc] - coeff_ptr[rc]); |
| d2 = dx * dx; |
| tokens[i][0].rate = base_bits + (best ? rate1 : rate0); |
| tokens[i][0].error = d2 + (best ? error1 : error0); |
| tokens[i][0].next = next; |
| tokens[i][0].token = t0; |
| tokens[i][0].qc = x; |
| best_index[i][0] = best; |
| |
| /* Evaluate the second possibility for this state. */ |
| rate0 = tokens[next][0].rate; |
| rate1 = tokens[next][1].rate; |
| |
| if ((abs(x)*dequant_ptr[rc != 0] > abs(coeff_ptr[rc]) * mul) && |
| (abs(x)*dequant_ptr[rc != 0] < abs(coeff_ptr[rc]) * mul + |
| dequant_ptr[rc != 0])) |
| shortcut = 1; |
| else |
| shortcut = 0; |
| |
| if (shortcut) { |
| sz = -(x < 0); |
| x -= 2 * sz + 1; |
| } |
| |
| /* Consider both possible successor states. */ |
| if (!x) { |
| /* If we reduced this coefficient to zero, check to see if |
| * we need to move the EOB back here. |
| */ |
| t0 = tokens[next][0].token == DCT_EOB_TOKEN ? |
| DCT_EOB_TOKEN : ZERO_TOKEN; |
| t1 = tokens[next][1].token == DCT_EOB_TOKEN ? |
| DCT_EOB_TOKEN : ZERO_TOKEN; |
| } else { |
| t0 = t1 = (vp9_dct_value_tokens_ptr + x)->token; |
| } |
| if (next < default_eob) { |
| band = band_translate[i + 1]; |
| if (t0 != DCT_EOB_TOKEN) { |
| pt = trellis_get_coeff_context(scan, nb, i, t0, token_cache); |
| rate0 += mb->token_costs[tx_size][type][ref][band][!x][pt] |
| [tokens[next][0].token]; |
| } |
| if (t1 != DCT_EOB_TOKEN) { |
| pt = trellis_get_coeff_context(scan, nb, i, t1, token_cache); |
| rate1 += mb->token_costs[tx_size][type][ref][band][!x][pt] |
| [tokens[next][1].token]; |
| } |
| } |
| |
| UPDATE_RD_COST(); |
| /* And pick the best. */ |
| best = rd_cost1 < rd_cost0; |
| base_bits = *(vp9_dct_value_cost_ptr + x); |
| |
| if (shortcut) { |
| dx -= (dequant_ptr[rc != 0] + sz) ^ sz; |
| d2 = dx * dx; |
| } |
| tokens[i][1].rate = base_bits + (best ? rate1 : rate0); |
| tokens[i][1].error = d2 + (best ? error1 : error0); |
| tokens[i][1].next = next; |
| tokens[i][1].token = best ? t1 : t0; |
| tokens[i][1].qc = x; |
| best_index[i][1] = best; |
| /* Finally, make this the new head of the trellis. */ |
| next = i; |
| } else { |
| /* There's no choice to make for a zero coefficient, so we don't |
| * add a new trellis node, but we do need to update the costs. |
| */ |
| band = band_translate[i + 1]; |
| t0 = tokens[next][0].token; |
| t1 = tokens[next][1].token; |
| /* Update the cost of each path if we're past the EOB token. */ |
| if (t0 != DCT_EOB_TOKEN) { |
| tokens[next][0].rate += |
| mb->token_costs[tx_size][type][ref][band][1][0][t0]; |
| tokens[next][0].token = ZERO_TOKEN; |
| } |
| if (t1 != DCT_EOB_TOKEN) { |
| tokens[next][1].rate += |
| mb->token_costs[tx_size][type][ref][band][1][0][t1]; |
| tokens[next][1].token = ZERO_TOKEN; |
| } |
| best_index[i][0] = best_index[i][1] = 0; |
| /* Don't update next, because we didn't add a new node. */ |
| } |
| } |
| |
| /* Now pick the best path through the whole trellis. */ |
| band = band_translate[i + 1]; |
| pt = combine_entropy_contexts(*a, *l); |
| rate0 = tokens[next][0].rate; |
| rate1 = tokens[next][1].rate; |
| error0 = tokens[next][0].error; |
| error1 = tokens[next][1].error; |
| t0 = tokens[next][0].token; |
| t1 = tokens[next][1].token; |
| rate0 += mb->token_costs[tx_size][type][ref][band][0][pt][t0]; |
| rate1 += mb->token_costs[tx_size][type][ref][band][0][pt][t1]; |
| UPDATE_RD_COST(); |
| best = rd_cost1 < rd_cost0; |
| final_eob = i0 - 1; |
| vpx_memset(qcoeff_ptr, 0, sizeof(*qcoeff_ptr) * (16 << (tx_size * 2))); |
| vpx_memset(dqcoeff_ptr, 0, sizeof(*dqcoeff_ptr) * (16 << (tx_size * 2))); |
| for (i = next; i < eob; i = next) { |
| x = tokens[i][best].qc; |
| if (x) { |
| final_eob = i; |
| } |
| rc = scan[i]; |
| qcoeff_ptr[rc] = x; |
| dqcoeff_ptr[rc] = (x * dequant_ptr[rc != 0]) / mul; |
| |
| next = tokens[i][best].next; |
| best = best_index[i][best]; |
| } |
| final_eob++; |
| |
| xd->plane[plane].eobs[block] = final_eob; |
| *a = *l = (final_eob > 0); |
| } |
| |
| void vp9_optimize_b(int plane, int block, BLOCK_SIZE plane_bsize, |
| TX_SIZE tx_size, MACROBLOCK *mb, struct optimize_ctx *ctx) { |
| int x, y; |
| txfrm_block_to_raster_xy(plane_bsize, tx_size, block, &x, &y); |
| optimize_b(mb, plane, block, plane_bsize, |
| &ctx->ta[plane][x], &ctx->tl[plane][y], tx_size); |
| } |
| |
| static void optimize_init_b(int plane, BLOCK_SIZE bsize, |
| struct encode_b_args *args) { |
| const MACROBLOCKD *xd = &args->x->e_mbd; |
| const struct macroblockd_plane* const pd = &xd->plane[plane]; |
| 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 MB_MODE_INFO *mbmi = &xd->mi_8x8[0]->mbmi; |
| const TX_SIZE tx_size = plane ? get_uv_tx_size(mbmi) : mbmi->tx_size; |
| |
| vp9_get_entropy_contexts(tx_size, args->ctx->ta[plane], args->ctx->tl[plane], |
| pd->above_context, pd->left_context, |
| num_4x4_w, num_4x4_h); |
| } |
| |
| void vp9_xform_quant(int plane, int block, BLOCK_SIZE plane_bsize, |
| TX_SIZE tx_size, void *arg) { |
| struct encode_b_args* const args = arg; |
| MACROBLOCK* const x = args->x; |
| MACROBLOCKD* const xd = &x->e_mbd; |
| struct macroblock_plane *const p = &x->plane[plane]; |
| struct macroblockd_plane *const pd = &xd->plane[plane]; |
| int16_t *coeff = BLOCK_OFFSET(p->coeff, block); |
| int16_t *qcoeff = BLOCK_OFFSET(pd->qcoeff, block); |
| int16_t *dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); |
| const int16_t *scan, *iscan; |
| uint16_t *eob = &pd->eobs[block]; |
| const int bwl = b_width_log2(plane_bsize), bw = 1 << bwl; |
| const int twl = bwl - tx_size, twmask = (1 << twl) - 1; |
| int xoff, yoff; |
| int16_t *src_diff; |
| |
| switch (tx_size) { |
| case TX_32X32: |
| scan = vp9_default_scan_32x32; |
| iscan = vp9_default_iscan_32x32; |
| block >>= 6; |
| xoff = 32 * (block & twmask); |
| yoff = 32 * (block >> twl); |
| src_diff = p->src_diff + 4 * bw * yoff + xoff; |
| if (x->use_lp32x32fdct) |
| vp9_fdct32x32_rd(src_diff, coeff, bw * 4); |
| else |
| vp9_fdct32x32(src_diff, coeff, bw * 4); |
| vp9_quantize_b_32x32(coeff, 1024, x->skip_block, p->zbin, p->round, |
| p->quant, p->quant_shift, qcoeff, dqcoeff, |
| pd->dequant, p->zbin_extra, eob, scan, iscan); |
| break; |
| case TX_16X16: |
| scan = vp9_default_scan_16x16; |
| iscan = vp9_default_iscan_16x16; |
| block >>= 4; |
| xoff = 16 * (block & twmask); |
| yoff = 16 * (block >> twl); |
| src_diff = p->src_diff + 4 * bw * yoff + xoff; |
| vp9_fdct16x16(src_diff, coeff, bw * 4); |
| vp9_quantize_b(coeff, 256, x->skip_block, p->zbin, p->round, |
| p->quant, p->quant_shift, qcoeff, dqcoeff, |
| pd->dequant, p->zbin_extra, eob, scan, iscan); |
| break; |
| case TX_8X8: |
| scan = vp9_default_scan_8x8; |
| iscan = vp9_default_iscan_8x8; |
| block >>= 2; |
| xoff = 8 * (block & twmask); |
| yoff = 8 * (block >> twl); |
| src_diff = p->src_diff + 4 * bw * yoff + xoff; |
| vp9_fdct8x8(src_diff, coeff, bw * 4); |
| vp9_quantize_b(coeff, 64, x->skip_block, p->zbin, p->round, |
| p->quant, p->quant_shift, qcoeff, dqcoeff, |
| pd->dequant, p->zbin_extra, eob, scan, iscan); |
| break; |
| case TX_4X4: |
| scan = vp9_default_scan_4x4; |
| iscan = vp9_default_iscan_4x4; |
| xoff = 4 * (block & twmask); |
| yoff = 4 * (block >> twl); |
| src_diff = p->src_diff + 4 * bw * yoff + xoff; |
| x->fwd_txm4x4(src_diff, coeff, bw * 4); |
| vp9_quantize_b(coeff, 16, x->skip_block, p->zbin, p->round, |
| p->quant, p->quant_shift, qcoeff, dqcoeff, |
| pd->dequant, p->zbin_extra, eob, scan, iscan); |
| break; |
| default: |
| assert(0); |
| } |
| } |
| |
| static void encode_block(int plane, int block, BLOCK_SIZE plane_bsize, |
| TX_SIZE tx_size, void *arg) { |
| struct encode_b_args *const args = arg; |
| MACROBLOCK *const x = args->x; |
| MACROBLOCKD *const xd = &x->e_mbd; |
| struct optimize_ctx *const ctx = args->ctx; |
| struct macroblockd_plane *const pd = &xd->plane[plane]; |
| int16_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); |
| int i, j; |
| uint8_t *dst; |
| txfrm_block_to_raster_xy(plane_bsize, tx_size, block, &i, &j); |
| dst = &pd->dst.buf[4 * j * pd->dst.stride + 4 * i]; |
| |
| // TODO(jingning): per transformed block zero forcing only enabled for |
| // luma component. will integrate chroma components as well. |
| if (x->zcoeff_blk[tx_size][block] && plane == 0) { |
| pd->eobs[block] = 0; |
| ctx->ta[plane][i] = 0; |
| ctx->tl[plane][j] = 0; |
| return; |
| } |
| |
| if (!x->skip_recode) |
| vp9_xform_quant(plane, block, plane_bsize, tx_size, arg); |
| |
| if (x->optimize && (!x->skip_recode || !x->skip_optimize)) { |
| vp9_optimize_b(plane, block, plane_bsize, tx_size, x, ctx); |
| } else { |
| ctx->ta[plane][i] = pd->eobs[block] > 0; |
| ctx->tl[plane][j] = pd->eobs[block] > 0; |
| } |
| |
| if (x->skip_encode || pd->eobs[block] == 0) |
| return; |
| |
| switch (tx_size) { |
| case TX_32X32: |
| vp9_idct32x32_add(dqcoeff, dst, pd->dst.stride, pd->eobs[block]); |
| break; |
| case TX_16X16: |
| vp9_idct16x16_add(dqcoeff, dst, pd->dst.stride, pd->eobs[block]); |
| break; |
| case TX_8X8: |
| vp9_idct8x8_add(dqcoeff, dst, pd->dst.stride, pd->eobs[block]); |
| break; |
| case TX_4X4: |
| // this is like vp9_short_idct4x4 but has a special case around eob<=1 |
| // which is significant (not just an optimization) for the lossless |
| // case. |
| xd->itxm_add(dqcoeff, dst, pd->dst.stride, pd->eobs[block]); |
| break; |
| default: |
| assert(!"Invalid transform size"); |
| } |
| } |
| |
| static void encode_block_pass1(int plane, int block, BLOCK_SIZE plane_bsize, |
| TX_SIZE tx_size, void *arg) { |
| struct encode_b_args *const args = arg; |
| MACROBLOCK *const x = args->x; |
| MACROBLOCKD *const xd = &x->e_mbd; |
| struct macroblockd_plane *const pd = &xd->plane[plane]; |
| const int raster_block = txfrm_block_to_raster_block(plane_bsize, tx_size, |
| block); |
| |
| int16_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); |
| uint8_t *const dst = raster_block_offset_uint8(plane_bsize, raster_block, |
| pd->dst.buf, pd->dst.stride); |
| |
| vp9_xform_quant(plane, block, plane_bsize, tx_size, arg); |
| |
| if (pd->eobs[block] == 0) |
| return; |
| |
| xd->itxm_add(dqcoeff, dst, pd->dst.stride, pd->eobs[block]); |
| } |
| |
| void vp9_encode_sby(MACROBLOCK *x, BLOCK_SIZE bsize) { |
| MACROBLOCKD *const xd = &x->e_mbd; |
| struct optimize_ctx ctx; |
| struct encode_b_args arg = {x, &ctx}; |
| |
| vp9_subtract_sby(x, bsize); |
| if (x->optimize) |
| optimize_init_b(0, bsize, &arg); |
| |
| foreach_transformed_block_in_plane(xd, bsize, 0, encode_block_pass1, &arg); |
| } |
| |
| void vp9_encode_sb(MACROBLOCK *x, BLOCK_SIZE bsize) { |
| MACROBLOCKD *const xd = &x->e_mbd; |
| struct optimize_ctx ctx; |
| struct encode_b_args arg = {x, &ctx}; |
| |
| if (!x->skip_recode) |
| vp9_subtract_sb(x, bsize); |
| |
| if (x->optimize && (!x->skip_recode || !x->skip_optimize)) { |
| int i; |
| for (i = 0; i < MAX_MB_PLANE; ++i) |
| optimize_init_b(i, bsize, &arg); |
| } |
| |
| foreach_transformed_block(xd, bsize, encode_block, &arg); |
| } |
| |
| void vp9_encode_block_intra(int plane, int block, BLOCK_SIZE plane_bsize, |
| TX_SIZE tx_size, void *arg) { |
| struct encode_b_args* const args = arg; |
| MACROBLOCK *const x = args->x; |
| MACROBLOCKD *const xd = &x->e_mbd; |
| MB_MODE_INFO *mbmi = &xd->mi_8x8[0]->mbmi; |
| struct macroblock_plane *const p = &x->plane[plane]; |
| struct macroblockd_plane *const pd = &xd->plane[plane]; |
| int16_t *coeff = BLOCK_OFFSET(p->coeff, block); |
| int16_t *qcoeff = BLOCK_OFFSET(pd->qcoeff, block); |
| int16_t *dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); |
| const int16_t *scan, *iscan; |
| TX_TYPE tx_type; |
| MB_PREDICTION_MODE mode; |
| const int bwl = b_width_log2(plane_bsize), bw = 1 << bwl; |
| const int twl = bwl - tx_size, twmask = (1 << twl) - 1; |
| int xoff, yoff; |
| uint8_t *src, *dst; |
| int16_t *src_diff; |
| uint16_t *eob = &pd->eobs[block]; |
| |
| if (xd->mb_to_right_edge < 0 || xd->mb_to_bottom_edge < 0) |
| extend_for_intra(xd, plane_bsize, plane, block, tx_size); |
| |
| // if (x->optimize) |
| // vp9_optimize_b(plane, block, plane_bsize, tx_size, x, args->ctx); |
| |
| switch (tx_size) { |
| case TX_32X32: |
| scan = vp9_default_scan_32x32; |
| iscan = vp9_default_iscan_32x32; |
| mode = plane == 0 ? mbmi->mode : mbmi->uv_mode; |
| block >>= 6; |
| xoff = 32 * (block & twmask); |
| yoff = 32 * (block >> twl); |
| dst = pd->dst.buf + yoff * pd->dst.stride + xoff; |
| vp9_predict_intra_block(xd, block, bwl, TX_32X32, mode, |
| dst, pd->dst.stride, dst, pd->dst.stride); |
| |
| if (!x->skip_recode) { |
| src = p->src.buf + yoff * p->src.stride + xoff; |
| src_diff = p->src_diff + 4 * bw * yoff + xoff; |
| vp9_subtract_block(32, 32, src_diff, bw * 4, |
| src, p->src.stride, dst, pd->dst.stride); |
| if (x->use_lp32x32fdct) |
| vp9_fdct32x32_rd(src_diff, coeff, bw * 4); |
| else |
| vp9_fdct32x32(src_diff, coeff, bw * 4); |
| vp9_quantize_b_32x32(coeff, 1024, x->skip_block, p->zbin, p->round, |
| p->quant, p->quant_shift, qcoeff, dqcoeff, |
| pd->dequant, p->zbin_extra, eob, scan, iscan); |
| } |
| if (!x->skip_encode && *eob) |
| vp9_idct32x32_add(dqcoeff, dst, pd->dst.stride, *eob); |
| break; |
| case TX_16X16: |
| tx_type = get_tx_type_16x16(pd->plane_type, xd); |
| scan = get_scan_16x16(tx_type); |
| iscan = get_iscan_16x16(tx_type); |
| mode = plane == 0 ? mbmi->mode : mbmi->uv_mode; |
| block >>= 4; |
| xoff = 16 * (block & twmask); |
| yoff = 16 * (block >> twl); |
| dst = pd->dst.buf + yoff * pd->dst.stride + xoff; |
| vp9_predict_intra_block(xd, block, bwl, TX_16X16, mode, |
| dst, pd->dst.stride, dst, pd->dst.stride); |
| if (!x->skip_recode) { |
| src = p->src.buf + yoff * p->src.stride + xoff; |
| src_diff = p->src_diff + 4 * bw * yoff + xoff; |
| vp9_subtract_block(16, 16, src_diff, bw * 4, |
| src, p->src.stride, dst, pd->dst.stride); |
| vp9_fht16x16(tx_type, src_diff, coeff, bw * 4); |
| vp9_quantize_b(coeff, 256, x->skip_block, p->zbin, p->round, |
| p->quant, p->quant_shift, qcoeff, dqcoeff, |
| pd->dequant, p->zbin_extra, eob, scan, iscan); |
| } |
| if (!x->skip_encode && *eob) |
| vp9_iht16x16_add(tx_type, dqcoeff, dst, pd->dst.stride, *eob); |
| break; |
| case TX_8X8: |
| tx_type = get_tx_type_8x8(pd->plane_type, xd); |
| scan = get_scan_8x8(tx_type); |
| iscan = get_iscan_8x8(tx_type); |
| mode = plane == 0 ? mbmi->mode : mbmi->uv_mode; |
| block >>= 2; |
| xoff = 8 * (block & twmask); |
| yoff = 8 * (block >> twl); |
| dst = pd->dst.buf + yoff * pd->dst.stride + xoff; |
| vp9_predict_intra_block(xd, block, bwl, TX_8X8, mode, |
| dst, pd->dst.stride, dst, pd->dst.stride); |
| if (!x->skip_recode) { |
| src = p->src.buf + yoff * p->src.stride + xoff; |
| src_diff = p->src_diff + 4 * bw * yoff + xoff; |
| vp9_subtract_block(8, 8, src_diff, bw * 4, |
| src, p->src.stride, dst, pd->dst.stride); |
| vp9_fht8x8(tx_type, src_diff, coeff, bw * 4); |
| vp9_quantize_b(coeff, 64, x->skip_block, p->zbin, p->round, p->quant, |
| p->quant_shift, qcoeff, dqcoeff, |
| pd->dequant, p->zbin_extra, eob, scan, iscan); |
| } |
| if (!x->skip_encode && *eob) |
| vp9_iht8x8_add(tx_type, dqcoeff, dst, pd->dst.stride, *eob); |
| break; |
| case TX_4X4: |
| tx_type = get_tx_type_4x4(pd->plane_type, xd, block); |
| scan = get_scan_4x4(tx_type); |
| iscan = get_iscan_4x4(tx_type); |
| if (mbmi->sb_type < BLOCK_8X8 && plane == 0) |
| mode = xd->mi_8x8[0]->bmi[block].as_mode; |
| else |
| mode = plane == 0 ? mbmi->mode : mbmi->uv_mode; |
| |
| xoff = 4 * (block & twmask); |
| yoff = 4 * (block >> twl); |
| dst = pd->dst.buf + yoff * pd->dst.stride + xoff; |
| vp9_predict_intra_block(xd, block, bwl, TX_4X4, mode, |
| dst, pd->dst.stride, dst, pd->dst.stride); |
| |
| if (!x->skip_recode) { |
| src = p->src.buf + yoff * p->src.stride + xoff; |
| src_diff = p->src_diff + 4 * bw * yoff + xoff; |
| vp9_subtract_block(4, 4, src_diff, bw * 4, |
| src, p->src.stride, dst, pd->dst.stride); |
| if (tx_type != DCT_DCT) |
| vp9_short_fht4x4(src_diff, coeff, bw * 4, tx_type); |
| else |
| x->fwd_txm4x4(src_diff, coeff, bw * 4); |
| vp9_quantize_b(coeff, 16, x->skip_block, p->zbin, p->round, p->quant, |
| p->quant_shift, qcoeff, dqcoeff, |
| pd->dequant, p->zbin_extra, eob, scan, iscan); |
| } |
| |
| if (!x->skip_encode && *eob) { |
| if (tx_type == DCT_DCT) |
| // this is like vp9_short_idct4x4 but has a special case around eob<=1 |
| // which is significant (not just an optimization) for the lossless |
| // case. |
| xd->itxm_add(dqcoeff, dst, pd->dst.stride, *eob); |
| else |
| vp9_iht4x4_16_add(dqcoeff, dst, pd->dst.stride, tx_type); |
| } |
| break; |
| default: |
| assert(0); |
| } |
| } |
| |
| void vp9_encode_intra_block_y(MACROBLOCK *x, BLOCK_SIZE bsize) { |
| MACROBLOCKD* const xd = &x->e_mbd; |
| struct optimize_ctx ctx; |
| struct encode_b_args arg = {x, &ctx}; |
| |
| foreach_transformed_block_in_plane(xd, bsize, 0, vp9_encode_block_intra, |
| &arg); |
| } |
| void vp9_encode_intra_block_uv(MACROBLOCK *x, BLOCK_SIZE bsize) { |
| MACROBLOCKD* const xd = &x->e_mbd; |
| struct optimize_ctx ctx; |
| struct encode_b_args arg = {x, &ctx}; |
| foreach_transformed_block_uv(xd, bsize, vp9_encode_block_intra, &arg); |
| } |
| |
