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Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/av1/encoder/encodemb.c | 649 |
1 files changed, 649 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/encodemb.c b/third_party/aom/av1/encoder/encodemb.c new file mode 100644 index 0000000000..ad12577e6e --- /dev/null +++ b/third_party/aom/av1/encoder/encodemb.c @@ -0,0 +1,649 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#include "config/aom_config.h" +#include "config/av1_rtcd.h" +#include "config/aom_dsp_rtcd.h" + +#include "aom_dsp/bitwriter.h" +#include "aom_dsp/quantize.h" +#include "aom_mem/aom_mem.h" +#include "aom_ports/mem.h" + +#if CONFIG_BITSTREAM_DEBUG || CONFIG_MISMATCH_DEBUG +#include "aom_util/debug_util.h" +#endif // CONFIG_BITSTREAM_DEBUG || CONFIG_MISMATCH_DEBUG + +#include "av1/common/cfl.h" +#include "av1/common/idct.h" +#include "av1/common/reconinter.h" +#include "av1/common/reconintra.h" +#include "av1/common/scan.h" + +#include "av1/encoder/av1_quantize.h" +#include "av1/encoder/encodemb.h" +#include "av1/encoder/encodetxb.h" +#include "av1/encoder/hybrid_fwd_txfm.h" +#include "av1/encoder/rd.h" +#include "av1/encoder/rdopt.h" + +// Check if one needs to use c version subtraction. +static int check_subtract_block_size(int w, int h) { return w < 4 || h < 4; } + +static void subtract_block(const MACROBLOCKD *xd, int rows, int cols, + int16_t *diff, ptrdiff_t diff_stride, + const uint8_t *src8, ptrdiff_t src_stride, + const uint8_t *pred8, ptrdiff_t pred_stride) { + if (check_subtract_block_size(rows, cols)) { + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + aom_highbd_subtract_block_c(rows, cols, diff, diff_stride, src8, + src_stride, pred8, pred_stride, xd->bd); + return; + } + aom_subtract_block_c(rows, cols, diff, diff_stride, src8, src_stride, pred8, + pred_stride); + + return; + } + + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + aom_highbd_subtract_block(rows, cols, diff, diff_stride, src8, src_stride, + pred8, pred_stride, xd->bd); + return; + } + aom_subtract_block(rows, cols, diff, diff_stride, src8, src_stride, pred8, + pred_stride); +} + +void av1_subtract_txb(MACROBLOCK *x, int plane, BLOCK_SIZE plane_bsize, + int blk_col, int blk_row, TX_SIZE tx_size) { + MACROBLOCKD *const xd = &x->e_mbd; + struct macroblock_plane *const p = &x->plane[plane]; + const struct macroblockd_plane *const pd = &x->e_mbd.plane[plane]; + const int diff_stride = block_size_wide[plane_bsize]; + const int src_stride = p->src.stride; + const int dst_stride = pd->dst.stride; + const int tx1d_width = tx_size_wide[tx_size]; + const int tx1d_height = tx_size_high[tx_size]; + uint8_t *dst = + &pd->dst.buf[(blk_row * dst_stride + blk_col) << tx_size_wide_log2[0]]; + uint8_t *src = + &p->src.buf[(blk_row * src_stride + blk_col) << tx_size_wide_log2[0]]; + int16_t *src_diff = + &p->src_diff[(blk_row * diff_stride + blk_col) << tx_size_wide_log2[0]]; + subtract_block(xd, tx1d_height, tx1d_width, src_diff, diff_stride, src, + src_stride, dst, dst_stride); +} + +void av1_subtract_plane(MACROBLOCK *x, BLOCK_SIZE bsize, int plane) { + struct macroblock_plane *const p = &x->plane[plane]; + const struct macroblockd_plane *const pd = &x->e_mbd.plane[plane]; + const BLOCK_SIZE plane_bsize = + get_plane_block_size(bsize, pd->subsampling_x, pd->subsampling_y); + const int bw = block_size_wide[plane_bsize]; + const int bh = block_size_high[plane_bsize]; + const MACROBLOCKD *xd = &x->e_mbd; + + subtract_block(xd, bh, bw, p->src_diff, bw, p->src.buf, p->src.stride, + pd->dst.buf, pd->dst.stride); +} + +int av1_optimize_b(const struct AV1_COMP *cpi, MACROBLOCK *mb, int plane, + int block, TX_SIZE tx_size, TX_TYPE tx_type, + const TXB_CTX *const txb_ctx, int fast_mode, + int *rate_cost) { + MACROBLOCKD *const xd = &mb->e_mbd; + struct macroblock_plane *const p = &mb->plane[plane]; + const int eob = p->eobs[block]; + const int segment_id = xd->mi[0]->segment_id; + + if (eob == 0 || !cpi->optimize_seg_arr[segment_id] || + xd->lossless[segment_id]) { + *rate_cost = av1_cost_skip_txb(mb, txb_ctx, plane, tx_size); + return eob; + } + + (void)fast_mode; + return av1_optimize_txb_new(cpi, mb, plane, block, tx_size, tx_type, txb_ctx, + rate_cost, cpi->oxcf.sharpness); +} + +typedef enum QUANT_FUNC { + QUANT_FUNC_LOWBD = 0, + QUANT_FUNC_HIGHBD = 1, + QUANT_FUNC_TYPES = 2 +} QUANT_FUNC; + +static AV1_QUANT_FACADE + quant_func_list[AV1_XFORM_QUANT_TYPES][QUANT_FUNC_TYPES] = { + { av1_quantize_fp_facade, av1_highbd_quantize_fp_facade }, + { av1_quantize_b_facade, av1_highbd_quantize_b_facade }, + { av1_quantize_dc_facade, av1_highbd_quantize_dc_facade }, + { NULL, NULL } + }; + +void av1_xform_quant(const AV1_COMMON *cm, MACROBLOCK *x, int plane, int block, + int blk_row, int blk_col, BLOCK_SIZE plane_bsize, + TX_SIZE tx_size, TX_TYPE tx_type, + AV1_XFORM_QUANT xform_quant_idx) { + MACROBLOCKD *const xd = &x->e_mbd; + MB_MODE_INFO *const mbmi = xd->mi[0]; + const struct macroblock_plane *const p = &x->plane[plane]; + const struct macroblockd_plane *const pd = &xd->plane[plane]; + const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); + + tran_low_t *const coeff = BLOCK_OFFSET(p->coeff, block); + tran_low_t *const qcoeff = BLOCK_OFFSET(p->qcoeff, block); + tran_low_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); + uint16_t *const eob = &p->eobs[block]; + const int diff_stride = block_size_wide[plane_bsize]; + int seg_id = mbmi->segment_id; + const TX_SIZE qm_tx_size = av1_get_adjusted_tx_size(tx_size); + // Use a flat matrix (i.e. no weighting) for 1D and Identity transforms + const qm_val_t *qmatrix = + IS_2D_TRANSFORM(tx_type) ? pd->seg_qmatrix[seg_id][qm_tx_size] + : cm->gqmatrix[NUM_QM_LEVELS - 1][0][qm_tx_size]; + const qm_val_t *iqmatrix = + IS_2D_TRANSFORM(tx_type) + ? pd->seg_iqmatrix[seg_id][qm_tx_size] + : cm->giqmatrix[NUM_QM_LEVELS - 1][0][qm_tx_size]; + + const int src_offset = (blk_row * diff_stride + blk_col); + const int16_t *src_diff = &p->src_diff[src_offset << tx_size_wide_log2[0]]; + QUANT_PARAM qparam; + qparam.log_scale = av1_get_tx_scale(tx_size); + qparam.tx_size = tx_size; + qparam.qmatrix = qmatrix; + qparam.iqmatrix = iqmatrix; + TxfmParam txfm_param; + txfm_param.tx_type = tx_type; + txfm_param.tx_size = tx_size; + txfm_param.lossless = xd->lossless[mbmi->segment_id]; + txfm_param.tx_set_type = av1_get_ext_tx_set_type( + txfm_param.tx_size, is_inter_block(mbmi), cm->reduced_tx_set_used); + + txfm_param.bd = xd->bd; + txfm_param.is_hbd = get_bitdepth_data_path_index(xd); + + av1_fwd_txfm(src_diff, coeff, diff_stride, &txfm_param); + + if (xform_quant_idx != AV1_XFORM_QUANT_SKIP_QUANT) { + const int n_coeffs = av1_get_max_eob(tx_size); + if (LIKELY(!x->skip_block)) { + quant_func_list[xform_quant_idx][txfm_param.is_hbd]( + coeff, n_coeffs, p, qcoeff, dqcoeff, eob, scan_order, &qparam); + } else { + av1_quantize_skip(n_coeffs, qcoeff, dqcoeff, eob); + } + } + // NOTE: optimize_b_following is ture means av1_optimze_b will be called + // When the condition of doing optimize_b is changed, + // this flag need update simultaneously + const int optimize_b_following = + (xform_quant_idx != AV1_XFORM_QUANT_FP) || (txfm_param.lossless); + if (optimize_b_following) { + p->txb_entropy_ctx[block] = + (uint8_t)av1_get_txb_entropy_context(qcoeff, scan_order, *eob); + } else { + p->txb_entropy_ctx[block] = 0; + } + return; +} + +static void encode_block(int plane, int block, int blk_row, int blk_col, + BLOCK_SIZE plane_bsize, TX_SIZE tx_size, void *arg, + int mi_row, int mi_col, RUN_TYPE dry_run) { + (void)mi_row; + (void)mi_col; + (void)dry_run; + struct encode_b_args *const args = arg; + const AV1_COMMON *const cm = &args->cpi->common; + MACROBLOCK *const x = args->x; + MACROBLOCKD *const xd = &x->e_mbd; + MB_MODE_INFO *mbmi = xd->mi[0]; + struct macroblock_plane *const p = &x->plane[plane]; + struct macroblockd_plane *const pd = &xd->plane[plane]; + tran_low_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); + uint8_t *dst; + ENTROPY_CONTEXT *a, *l; + int dummy_rate_cost = 0; + + const int bw = block_size_wide[plane_bsize] >> tx_size_wide_log2[0]; + dst = &pd->dst + .buf[(blk_row * pd->dst.stride + blk_col) << tx_size_wide_log2[0]]; + + a = &args->ta[blk_col]; + l = &args->tl[blk_row]; + + if (!is_blk_skip(x, plane, blk_row * bw + blk_col) && !mbmi->skip_mode) { + TX_TYPE tx_type = av1_get_tx_type(pd->plane_type, xd, blk_row, blk_col, + tx_size, cm->reduced_tx_set_used); + if (args->enable_optimize_b) { + av1_xform_quant(cm, x, plane, block, blk_row, blk_col, plane_bsize, + tx_size, tx_type, AV1_XFORM_QUANT_FP); + TXB_CTX txb_ctx; + get_txb_ctx(plane_bsize, tx_size, plane, a, l, &txb_ctx); + av1_optimize_b(args->cpi, x, plane, block, tx_size, tx_type, &txb_ctx, 1, + &dummy_rate_cost); + } else { + av1_xform_quant( + cm, x, plane, block, blk_row, blk_col, plane_bsize, tx_size, tx_type, + USE_B_QUANT_NO_TRELLIS ? AV1_XFORM_QUANT_B : AV1_XFORM_QUANT_FP); + } + } else { + p->eobs[block] = 0; + p->txb_entropy_ctx[block] = 0; + } + + av1_set_txb_context(x, plane, block, tx_size, a, l); + + if (p->eobs[block]) { + *(args->skip) = 0; + + TX_TYPE tx_type = av1_get_tx_type(pd->plane_type, xd, blk_row, blk_col, + tx_size, cm->reduced_tx_set_used); + av1_inverse_transform_block(xd, dqcoeff, plane, tx_type, tx_size, dst, + pd->dst.stride, p->eobs[block], + cm->reduced_tx_set_used); + } + + if (p->eobs[block] == 0 && plane == 0) { + // TODO(debargha, jingning): Temporarily disable txk_type check for eob=0 + // case. It is possible that certain collision in hash index would cause + // the assertion failure. To further optimize the rate-distortion + // performance, we need to re-visit this part and enable this assert + // again. +#if 0 + if (args->cpi->oxcf.aq_mode == NO_AQ && + args->cpi->oxcf.deltaq_mode == NO_DELTA_Q) { + // TODO(jingning,angiebird,huisu@google.com): enable txk_check when + // enable_optimize_b is true to detect potential RD bug. + const uint8_t disable_txk_check = args->enable_optimize_b; + if (!disable_txk_check) { + assert(mbmi->txk_type[av1_get_txk_type_index(plane_bsize, blk_row, + blk_col)] == DCT_DCT); + } + } +#endif + update_txk_array(mbmi->txk_type, plane_bsize, blk_row, blk_col, tx_size, + DCT_DCT); + } + +#if CONFIG_MISMATCH_DEBUG + if (dry_run == OUTPUT_ENABLED) { + int pixel_c, pixel_r; + BLOCK_SIZE bsize = txsize_to_bsize[tx_size]; + int blk_w = block_size_wide[bsize]; + int blk_h = block_size_high[bsize]; + mi_to_pixel_loc(&pixel_c, &pixel_r, mi_col, mi_row, blk_col, blk_row, + pd->subsampling_x, pd->subsampling_y); + mismatch_record_block_tx(dst, pd->dst.stride, cm->frame_offset, plane, + pixel_c, pixel_r, blk_w, blk_h, + xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH); + } +#endif +} + +static void encode_block_inter(int plane, int block, int blk_row, int blk_col, + BLOCK_SIZE plane_bsize, TX_SIZE tx_size, + void *arg, int mi_row, int mi_col, + RUN_TYPE dry_run) { + (void)mi_row; + (void)mi_col; + struct encode_b_args *const args = arg; + MACROBLOCK *const x = args->x; + MACROBLOCKD *const xd = &x->e_mbd; + MB_MODE_INFO *const mbmi = xd->mi[0]; + const struct macroblockd_plane *const pd = &xd->plane[plane]; + const int max_blocks_high = max_block_high(xd, plane_bsize, plane); + const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane); + + if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return; + + const TX_SIZE plane_tx_size = + plane ? av1_get_max_uv_txsize(mbmi->sb_type, pd->subsampling_x, + pd->subsampling_y) + : mbmi->inter_tx_size[av1_get_txb_size_index(plane_bsize, blk_row, + blk_col)]; + if (!plane) { + assert(tx_size_wide[tx_size] >= tx_size_wide[plane_tx_size] && + tx_size_high[tx_size] >= tx_size_high[plane_tx_size]); + } + + if (tx_size == plane_tx_size || plane) { + encode_block(plane, block, blk_row, blk_col, plane_bsize, tx_size, arg, + mi_row, mi_col, dry_run); + } else { + assert(tx_size < TX_SIZES_ALL); + const TX_SIZE sub_txs = sub_tx_size_map[tx_size]; + assert(IMPLIES(tx_size <= TX_4X4, sub_txs == tx_size)); + assert(IMPLIES(tx_size > TX_4X4, sub_txs < tx_size)); + // This is the square transform block partition entry point. + const int bsw = tx_size_wide_unit[sub_txs]; + const int bsh = tx_size_high_unit[sub_txs]; + const int step = bsh * bsw; + assert(bsw > 0 && bsh > 0); + + for (int row = 0; row < tx_size_high_unit[tx_size]; row += bsh) { + for (int col = 0; col < tx_size_wide_unit[tx_size]; col += bsw) { + const int offsetr = blk_row + row; + const int offsetc = blk_col + col; + + if (offsetr >= max_blocks_high || offsetc >= max_blocks_wide) continue; + + encode_block_inter(plane, block, offsetr, offsetc, plane_bsize, sub_txs, + arg, mi_row, mi_col, dry_run); + block += step; + } + } + } +} + +void av1_foreach_transformed_block_in_plane( + const MACROBLOCKD *const xd, BLOCK_SIZE bsize, int plane, + foreach_transformed_block_visitor visit, void *arg) { + const struct macroblockd_plane *const pd = &xd->plane[plane]; + // block and transform sizes, in number of 4x4 blocks log 2 ("*_b") + // 4x4=0, 8x8=2, 16x16=4, 32x32=6, 64x64=8 + // transform size varies per plane, look it up in a common way. + const TX_SIZE tx_size = av1_get_tx_size(plane, xd); + const BLOCK_SIZE plane_bsize = + get_plane_block_size(bsize, pd->subsampling_x, pd->subsampling_y); + const uint8_t txw_unit = tx_size_wide_unit[tx_size]; + const uint8_t txh_unit = tx_size_high_unit[tx_size]; + const int step = txw_unit * txh_unit; + int i = 0, r, c; + + // If mb_to_right_edge is < 0 we are in a situation in which + // the current block size extends into the UMV and we won't + // visit the sub blocks that are wholly within the UMV. + const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane); + const int max_blocks_high = max_block_high(xd, plane_bsize, plane); + + int blk_row, blk_col; + + const BLOCK_SIZE max_unit_bsize = + get_plane_block_size(BLOCK_64X64, pd->subsampling_x, pd->subsampling_y); + int mu_blocks_wide = block_size_wide[max_unit_bsize] >> tx_size_wide_log2[0]; + int mu_blocks_high = block_size_high[max_unit_bsize] >> tx_size_high_log2[0]; + mu_blocks_wide = AOMMIN(max_blocks_wide, mu_blocks_wide); + mu_blocks_high = AOMMIN(max_blocks_high, mu_blocks_high); + + // Keep track of the row and column of the blocks we use so that we know + // if we are in the unrestricted motion border. + for (r = 0; r < max_blocks_high; r += mu_blocks_high) { + const int unit_height = AOMMIN(mu_blocks_high + r, max_blocks_high); + // Skip visiting the sub blocks that are wholly within the UMV. + for (c = 0; c < max_blocks_wide; c += mu_blocks_wide) { + const int unit_width = AOMMIN(mu_blocks_wide + c, max_blocks_wide); + for (blk_row = r; blk_row < unit_height; blk_row += txh_unit) { + for (blk_col = c; blk_col < unit_width; blk_col += txw_unit) { + visit(plane, i, blk_row, blk_col, plane_bsize, tx_size, arg); + i += step; + } + } + } + } +} + +void av1_foreach_transformed_block(const MACROBLOCKD *const xd, + BLOCK_SIZE bsize, int mi_row, int mi_col, + foreach_transformed_block_visitor visit, + void *arg, const int num_planes) { + for (int plane = 0; plane < num_planes; ++plane) { + if (!is_chroma_reference(mi_row, mi_col, bsize, + xd->plane[plane].subsampling_x, + xd->plane[plane].subsampling_y)) + continue; + av1_foreach_transformed_block_in_plane(xd, bsize, plane, visit, arg); + } +} + +typedef struct encode_block_pass1_args { + AV1_COMMON *cm; + MACROBLOCK *x; +} encode_block_pass1_args; + +static void encode_block_pass1(int plane, int block, int blk_row, int blk_col, + BLOCK_SIZE plane_bsize, TX_SIZE tx_size, + void *arg) { + encode_block_pass1_args *args = (encode_block_pass1_args *)arg; + AV1_COMMON *cm = args->cm; + 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]; + tran_low_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); + TxfmParam txfm_param; + uint8_t *dst; + dst = &pd->dst + .buf[(blk_row * pd->dst.stride + blk_col) << tx_size_wide_log2[0]]; + av1_xform_quant(cm, x, plane, block, blk_row, blk_col, plane_bsize, tx_size, + DCT_DCT, AV1_XFORM_QUANT_B); + + if (p->eobs[block] > 0) { + txfm_param.bd = xd->bd; + txfm_param.is_hbd = get_bitdepth_data_path_index(xd); + txfm_param.tx_type = DCT_DCT; + txfm_param.tx_size = tx_size; + txfm_param.eob = p->eobs[block]; + txfm_param.lossless = xd->lossless[xd->mi[0]->segment_id]; + txfm_param.tx_set_type = av1_get_ext_tx_set_type( + txfm_param.tx_size, is_inter_block(xd->mi[0]), cm->reduced_tx_set_used); + if (txfm_param.is_hbd) { + av1_highbd_inv_txfm_add(dqcoeff, dst, pd->dst.stride, &txfm_param); + return; + } + av1_inv_txfm_add(dqcoeff, dst, pd->dst.stride, &txfm_param); + } +} + +void av1_encode_sby_pass1(AV1_COMMON *cm, MACROBLOCK *x, BLOCK_SIZE bsize) { + encode_block_pass1_args args = { cm, x }; + av1_subtract_plane(x, bsize, 0); + av1_foreach_transformed_block_in_plane(&x->e_mbd, bsize, 0, + encode_block_pass1, &args); +} + +void av1_encode_sb(const struct AV1_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, + int mi_row, int mi_col, RUN_TYPE dry_run) { + (void)dry_run; + const AV1_COMMON *const cm = &cpi->common; + const int num_planes = av1_num_planes(cm); + MACROBLOCKD *const xd = &x->e_mbd; + struct optimize_ctx ctx; + MB_MODE_INFO *mbmi = xd->mi[0]; + struct encode_b_args arg = { cpi, + x, + &ctx, + &mbmi->skip, + NULL, + NULL, + cpi->optimize_seg_arr[mbmi->segment_id] }; + int plane; + + mbmi->skip = 1; + + if (x->skip) return; + + for (plane = 0; plane < num_planes; ++plane) { + const int subsampling_x = xd->plane[plane].subsampling_x; + const int subsampling_y = xd->plane[plane].subsampling_y; + + if (!is_chroma_reference(mi_row, mi_col, bsize, subsampling_x, + subsampling_y)) + continue; + + const BLOCK_SIZE bsizec = + scale_chroma_bsize(bsize, subsampling_x, subsampling_y); + + // TODO(jingning): Clean this up. + const struct macroblockd_plane *const pd = &xd->plane[plane]; + const BLOCK_SIZE plane_bsize = + get_plane_block_size(bsizec, pd->subsampling_x, pd->subsampling_y); + const int mi_width = block_size_wide[plane_bsize] >> tx_size_wide_log2[0]; + const int mi_height = block_size_high[plane_bsize] >> tx_size_high_log2[0]; + const TX_SIZE max_tx_size = get_vartx_max_txsize(xd, plane_bsize, plane); + + const BLOCK_SIZE txb_size = txsize_to_bsize[max_tx_size]; + const int bw = block_size_wide[txb_size] >> tx_size_wide_log2[0]; + const int bh = block_size_high[txb_size] >> tx_size_high_log2[0]; + int idx, idy; + int block = 0; + int step = tx_size_wide_unit[max_tx_size] * tx_size_high_unit[max_tx_size]; + av1_get_entropy_contexts(bsizec, pd, ctx.ta[plane], ctx.tl[plane]); + + av1_subtract_plane(x, bsizec, plane); + + arg.ta = ctx.ta[plane]; + arg.tl = ctx.tl[plane]; + + const BLOCK_SIZE max_unit_bsize = + get_plane_block_size(BLOCK_64X64, pd->subsampling_x, pd->subsampling_y); + int mu_blocks_wide = + block_size_wide[max_unit_bsize] >> tx_size_wide_log2[0]; + int mu_blocks_high = + block_size_high[max_unit_bsize] >> tx_size_high_log2[0]; + + mu_blocks_wide = AOMMIN(mi_width, mu_blocks_wide); + mu_blocks_high = AOMMIN(mi_height, mu_blocks_high); + + for (idy = 0; idy < mi_height; idy += mu_blocks_high) { + for (idx = 0; idx < mi_width; idx += mu_blocks_wide) { + int blk_row, blk_col; + const int unit_height = AOMMIN(mu_blocks_high + idy, mi_height); + const int unit_width = AOMMIN(mu_blocks_wide + idx, mi_width); + for (blk_row = idy; blk_row < unit_height; blk_row += bh) { + for (blk_col = idx; blk_col < unit_width; blk_col += bw) { + encode_block_inter(plane, block, blk_row, blk_col, plane_bsize, + max_tx_size, &arg, mi_row, mi_col, dry_run); + block += step; + } + } + } + } + } +} + +static void encode_block_intra_and_set_context(int plane, int block, + int blk_row, int blk_col, + BLOCK_SIZE plane_bsize, + TX_SIZE tx_size, void *arg) { + av1_encode_block_intra(plane, block, blk_row, blk_col, plane_bsize, tx_size, + arg); + + struct encode_b_args *const args = arg; + MACROBLOCK *x = args->x; + ENTROPY_CONTEXT *a = &args->ta[blk_col]; + ENTROPY_CONTEXT *l = &args->tl[blk_row]; + av1_set_txb_context(x, plane, block, tx_size, a, l); +} + +void av1_encode_block_intra(int plane, int block, int blk_row, int blk_col, + BLOCK_SIZE plane_bsize, TX_SIZE tx_size, + void *arg) { + struct encode_b_args *const args = arg; + const AV1_COMMON *const cm = &args->cpi->common; + MACROBLOCK *const x = args->x; + MACROBLOCKD *const xd = &x->e_mbd; + MB_MODE_INFO *mbmi = xd->mi[0]; + struct macroblock_plane *const p = &x->plane[plane]; + struct macroblockd_plane *const pd = &xd->plane[plane]; + tran_low_t *dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); + PLANE_TYPE plane_type = get_plane_type(plane); + const TX_TYPE tx_type = av1_get_tx_type(plane_type, xd, blk_row, blk_col, + tx_size, cm->reduced_tx_set_used); + uint16_t *eob = &p->eobs[block]; + const int dst_stride = pd->dst.stride; + uint8_t *dst = + &pd->dst.buf[(blk_row * dst_stride + blk_col) << tx_size_wide_log2[0]]; + int dummy_rate_cost = 0; + + av1_predict_intra_block_facade(cm, xd, plane, blk_col, blk_row, tx_size); + + const int bw = block_size_wide[plane_bsize] >> tx_size_wide_log2[0]; + if (plane == 0 && is_blk_skip(x, plane, blk_row * bw + blk_col)) { + *eob = 0; + p->txb_entropy_ctx[block] = 0; + } else { + av1_subtract_txb(x, plane, plane_bsize, blk_col, blk_row, tx_size); + + const ENTROPY_CONTEXT *a = &args->ta[blk_col]; + const ENTROPY_CONTEXT *l = &args->tl[blk_row]; + if (args->enable_optimize_b) { + av1_xform_quant(cm, x, plane, block, blk_row, blk_col, plane_bsize, + tx_size, tx_type, AV1_XFORM_QUANT_FP); + TXB_CTX txb_ctx; + get_txb_ctx(plane_bsize, tx_size, plane, a, l, &txb_ctx); + av1_optimize_b(args->cpi, x, plane, block, tx_size, tx_type, &txb_ctx, 1, + &dummy_rate_cost); + } else { + av1_xform_quant( + cm, x, plane, block, blk_row, blk_col, plane_bsize, tx_size, tx_type, + USE_B_QUANT_NO_TRELLIS ? AV1_XFORM_QUANT_B : AV1_XFORM_QUANT_FP); + } + } + + if (*eob) { + av1_inverse_transform_block(xd, dqcoeff, plane, tx_type, tx_size, dst, + dst_stride, *eob, cm->reduced_tx_set_used); + } + + if (*eob == 0 && plane == 0) { + // TODO(jingning): Temporarily disable txk_type check for eob=0 case. + // It is possible that certain collision in hash index would cause + // the assertion failure. To further optimize the rate-distortion + // performance, we need to re-visit this part and enable this assert + // again. +#if 0 + if (args->cpi->oxcf.aq_mode == NO_AQ + && args->cpi->oxcf.deltaq_mode == NO_DELTA_Q) { + assert(mbmi->txk_type[av1_get_txk_type_index(plane_bsize, blk_row, + blk_col)] == DCT_DCT); + } +#endif + update_txk_array(mbmi->txk_type, plane_bsize, blk_row, blk_col, tx_size, + DCT_DCT); + } + + // For intra mode, skipped blocks are so rare that transmitting skip=1 is + // very expensive. + *(args->skip) = 0; + + if (plane == AOM_PLANE_Y && xd->cfl.store_y) { + cfl_store_tx(xd, blk_row, blk_col, tx_size, plane_bsize); + } +} + +void av1_encode_intra_block_plane(const struct AV1_COMP *cpi, MACROBLOCK *x, + BLOCK_SIZE bsize, int plane, + int enable_optimize_b, int mi_row, + int mi_col) { + const MACROBLOCKD *const xd = &x->e_mbd; + ENTROPY_CONTEXT ta[MAX_MIB_SIZE] = { 0 }; + ENTROPY_CONTEXT tl[MAX_MIB_SIZE] = { 0 }; + + struct encode_b_args arg = { + cpi, x, NULL, &(xd->mi[0]->skip), ta, tl, enable_optimize_b + }; + + if (!is_chroma_reference(mi_row, mi_col, bsize, + xd->plane[plane].subsampling_x, + xd->plane[plane].subsampling_y)) + return; + + if (enable_optimize_b) { + const struct macroblockd_plane *const pd = &xd->plane[plane]; + av1_get_entropy_contexts(bsize, pd, ta, tl); + } + av1_foreach_transformed_block_in_plane( + xd, bsize, plane, encode_block_intra_and_set_context, &arg); +} |