/* * 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 #include "av1/common/av1_common_int.h" #include "av1/common/blockd.h" PREDICTION_MODE av1_left_block_mode(const MB_MODE_INFO *left_mi) { if (!left_mi) return DC_PRED; assert(!is_inter_block(left_mi) || is_intrabc_block(left_mi)); return left_mi->mode; } PREDICTION_MODE av1_above_block_mode(const MB_MODE_INFO *above_mi) { if (!above_mi) return DC_PRED; assert(!is_inter_block(above_mi) || is_intrabc_block(above_mi)); return above_mi->mode; } void av1_set_entropy_contexts(const MACROBLOCKD *xd, struct macroblockd_plane *pd, int plane, BLOCK_SIZE plane_bsize, TX_SIZE tx_size, int has_eob, int aoff, int loff) { ENTROPY_CONTEXT *const a = pd->above_entropy_context + aoff; ENTROPY_CONTEXT *const l = pd->left_entropy_context + loff; const int txs_wide = tx_size_wide_unit[tx_size]; const int txs_high = tx_size_high_unit[tx_size]; // above if (has_eob && xd->mb_to_right_edge < 0) { const int blocks_wide = max_block_wide(xd, plane_bsize, plane); const int above_contexts = AOMMIN(txs_wide, blocks_wide - aoff); memset(a, has_eob, sizeof(*a) * above_contexts); memset(a + above_contexts, 0, sizeof(*a) * (txs_wide - above_contexts)); } else { memset(a, has_eob, sizeof(*a) * txs_wide); } // left if (has_eob && xd->mb_to_bottom_edge < 0) { const int blocks_high = max_block_high(xd, plane_bsize, plane); const int left_contexts = AOMMIN(txs_high, blocks_high - loff); memset(l, has_eob, sizeof(*l) * left_contexts); memset(l + left_contexts, 0, sizeof(*l) * (txs_high - left_contexts)); } else { memset(l, has_eob, sizeof(*l) * txs_high); } } void av1_reset_entropy_context(MACROBLOCKD *xd, BLOCK_SIZE bsize, const int num_planes) { assert(bsize < BLOCK_SIZES_ALL); const int nplanes = 1 + (num_planes - 1) * xd->is_chroma_ref; for (int i = 0; i < nplanes; i++) { struct macroblockd_plane *const pd = &xd->plane[i]; const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd->subsampling_x, pd->subsampling_y); const int txs_wide = mi_size_wide[plane_bsize]; const int txs_high = mi_size_high[plane_bsize]; memset(pd->above_entropy_context, 0, sizeof(ENTROPY_CONTEXT) * txs_wide); memset(pd->left_entropy_context, 0, sizeof(ENTROPY_CONTEXT) * txs_high); } } void av1_reset_loop_filter_delta(MACROBLOCKD *xd, int num_planes) { xd->delta_lf_from_base = 0; const int frame_lf_count = num_planes > 1 ? FRAME_LF_COUNT : FRAME_LF_COUNT - 2; for (int lf_id = 0; lf_id < frame_lf_count; ++lf_id) xd->delta_lf[lf_id] = 0; } void av1_reset_loop_restoration(MACROBLOCKD *xd, const int num_planes) { for (int p = 0; p < num_planes; ++p) { set_default_wiener(xd->wiener_info + p); set_default_sgrproj(xd->sgrproj_info + p); } } void av1_setup_block_planes(MACROBLOCKD *xd, int ss_x, int ss_y, const int num_planes) { int i; for (i = 0; i < num_planes; i++) { xd->plane[i].plane_type = get_plane_type(i); xd->plane[i].subsampling_x = i ? ss_x : 0; xd->plane[i].subsampling_y = i ? ss_y : 0; } for (i = num_planes; i < MAX_MB_PLANE; i++) { xd->plane[i].subsampling_x = 1; xd->plane[i].subsampling_y = 1; } }