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140 lines
5.1 KiB
C
140 lines
5.1 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include <math.h>
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#include "aom_ports/system_state.h"
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#include "av1/common/blockd.h"
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#include "av1/common/onyxc_int.h"
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PREDICTION_MODE av1_left_block_mode(const MB_MODE_INFO *left_mi) {
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if (!left_mi) return DC_PRED;
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assert(!is_inter_block(left_mi) || is_intrabc_block(left_mi));
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return left_mi->mode;
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}
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PREDICTION_MODE av1_above_block_mode(const MB_MODE_INFO *above_mi) {
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if (!above_mi) return DC_PRED;
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assert(!is_inter_block(above_mi) || is_intrabc_block(above_mi));
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return above_mi->mode;
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}
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void av1_set_contexts(const MACROBLOCKD *xd, struct macroblockd_plane *pd,
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int plane, BLOCK_SIZE plane_bsize, TX_SIZE tx_size,
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int has_eob, int aoff, int loff) {
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ENTROPY_CONTEXT *const a = pd->above_context + aoff;
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ENTROPY_CONTEXT *const l = pd->left_context + loff;
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const int txs_wide = tx_size_wide_unit[tx_size];
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const int txs_high = tx_size_high_unit[tx_size];
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// above
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if (has_eob && xd->mb_to_right_edge < 0) {
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const int blocks_wide = max_block_wide(xd, plane_bsize, plane);
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const int above_contexts = AOMMIN(txs_wide, blocks_wide - aoff);
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memset(a, has_eob, sizeof(*a) * above_contexts);
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memset(a + above_contexts, 0, sizeof(*a) * (txs_wide - above_contexts));
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} else {
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memset(a, has_eob, sizeof(*a) * txs_wide);
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}
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// left
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if (has_eob && xd->mb_to_bottom_edge < 0) {
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const int blocks_high = max_block_high(xd, plane_bsize, plane);
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const int left_contexts = AOMMIN(txs_high, blocks_high - loff);
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memset(l, has_eob, sizeof(*l) * left_contexts);
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memset(l + left_contexts, 0, sizeof(*l) * (txs_high - left_contexts));
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} else {
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memset(l, has_eob, sizeof(*l) * txs_high);
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}
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}
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void av1_reset_skip_context(MACROBLOCKD *xd, int mi_row, int mi_col,
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BLOCK_SIZE bsize, const int num_planes) {
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int i;
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int nplanes;
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int chroma_ref;
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chroma_ref =
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is_chroma_reference(mi_row, mi_col, bsize, xd->plane[1].subsampling_x,
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xd->plane[1].subsampling_y);
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nplanes = 1 + (num_planes - 1) * chroma_ref;
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for (i = 0; i < nplanes; i++) {
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struct macroblockd_plane *const pd = &xd->plane[i];
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const BLOCK_SIZE plane_bsize =
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get_plane_block_size(bsize, pd->subsampling_x, pd->subsampling_y);
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const int txs_wide = block_size_wide[plane_bsize] >> tx_size_wide_log2[0];
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const int txs_high = block_size_high[plane_bsize] >> tx_size_high_log2[0];
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memset(pd->above_context, 0, sizeof(ENTROPY_CONTEXT) * txs_wide);
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memset(pd->left_context, 0, sizeof(ENTROPY_CONTEXT) * txs_high);
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}
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}
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void av1_reset_loop_filter_delta(MACROBLOCKD *xd, int num_planes) {
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xd->delta_lf_from_base = 0;
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const int frame_lf_count =
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num_planes > 1 ? FRAME_LF_COUNT : FRAME_LF_COUNT - 2;
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for (int lf_id = 0; lf_id < frame_lf_count; ++lf_id) xd->delta_lf[lf_id] = 0;
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}
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void av1_reset_loop_restoration(MACROBLOCKD *xd, const int num_planes) {
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for (int p = 0; p < num_planes; ++p) {
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set_default_wiener(xd->wiener_info + p);
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set_default_sgrproj(xd->sgrproj_info + p);
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}
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}
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void av1_setup_block_planes(MACROBLOCKD *xd, int ss_x, int ss_y,
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const int num_planes) {
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int i;
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for (i = 0; i < num_planes; i++) {
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xd->plane[i].plane_type = get_plane_type(i);
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xd->plane[i].subsampling_x = i ? ss_x : 0;
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xd->plane[i].subsampling_y = i ? ss_y : 0;
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}
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for (i = num_planes; i < MAX_MB_PLANE; i++) {
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xd->plane[i].subsampling_x = 1;
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xd->plane[i].subsampling_y = 1;
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}
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}
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const int16_t dr_intra_derivative[90] = {
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// More evenly spread out angles and limited to 10-bit
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// Values that are 0 will never be used
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// Approx angle
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0, 0, 0, //
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1023, 0, 0, // 3, ...
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547, 0, 0, // 6, ...
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372, 0, 0, 0, 0, // 9, ...
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273, 0, 0, // 14, ...
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215, 0, 0, // 17, ...
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178, 0, 0, // 20, ...
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151, 0, 0, // 23, ... (113 & 203 are base angles)
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132, 0, 0, // 26, ...
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116, 0, 0, // 29, ...
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102, 0, 0, 0, // 32, ...
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90, 0, 0, // 36, ...
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80, 0, 0, // 39, ...
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71, 0, 0, // 42, ...
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64, 0, 0, // 45, ... (45 & 135 are base angles)
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57, 0, 0, // 48, ...
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51, 0, 0, // 51, ...
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45, 0, 0, 0, // 54, ...
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40, 0, 0, // 58, ...
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35, 0, 0, // 61, ...
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31, 0, 0, // 64, ...
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27, 0, 0, // 67, ... (67 & 157 are base angles)
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23, 0, 0, // 70, ...
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19, 0, 0, // 73, ...
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15, 0, 0, 0, 0, // 76, ...
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11, 0, 0, // 81, ...
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7, 0, 0, // 84, ...
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3, 0, 0, // 87, ...
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};
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