1 /*
2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
3 *
4 * This source code is subject to the terms of the BSD 2 Clause License and
5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 * was not distributed with this source code in the LICENSE file, you can
7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8 * Media Patent License 1.0 was not distributed with this source code in the
9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10 */
11
12 #include <math.h>
13
14 #include "aom_ports/system_state.h"
15
16 #include "av1/common/blockd.h"
17 #include "av1/common/onyxc_int.h"
18
av1_left_block_mode(const MB_MODE_INFO * left_mi)19 PREDICTION_MODE av1_left_block_mode(const MB_MODE_INFO *left_mi) {
20 if (!left_mi) return DC_PRED;
21 assert(!is_inter_block(left_mi) || is_intrabc_block(left_mi));
22 return left_mi->mode;
23 }
24
av1_above_block_mode(const MB_MODE_INFO * above_mi)25 PREDICTION_MODE av1_above_block_mode(const MB_MODE_INFO *above_mi) {
26 if (!above_mi) return DC_PRED;
27 assert(!is_inter_block(above_mi) || is_intrabc_block(above_mi));
28 return above_mi->mode;
29 }
30
av1_set_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)31 void av1_set_contexts(const MACROBLOCKD *xd, struct macroblockd_plane *pd,
32 int plane, BLOCK_SIZE plane_bsize, TX_SIZE tx_size,
33 int has_eob, int aoff, int loff) {
34 ENTROPY_CONTEXT *const a = pd->above_context + aoff;
35 ENTROPY_CONTEXT *const l = pd->left_context + loff;
36 const int txs_wide = tx_size_wide_unit[tx_size];
37 const int txs_high = tx_size_high_unit[tx_size];
38
39 // above
40 if (has_eob && xd->mb_to_right_edge < 0) {
41 const int blocks_wide = max_block_wide(xd, plane_bsize, plane);
42 const int above_contexts = AOMMIN(txs_wide, blocks_wide - aoff);
43 memset(a, has_eob, sizeof(*a) * above_contexts);
44 memset(a + above_contexts, 0, sizeof(*a) * (txs_wide - above_contexts));
45 } else {
46 memset(a, has_eob, sizeof(*a) * txs_wide);
47 }
48
49 // left
50 if (has_eob && xd->mb_to_bottom_edge < 0) {
51 const int blocks_high = max_block_high(xd, plane_bsize, plane);
52 const int left_contexts = AOMMIN(txs_high, blocks_high - loff);
53 memset(l, has_eob, sizeof(*l) * left_contexts);
54 memset(l + left_contexts, 0, sizeof(*l) * (txs_high - left_contexts));
55 } else {
56 memset(l, has_eob, sizeof(*l) * txs_high);
57 }
58 }
av1_reset_skip_context(MACROBLOCKD * xd,int mi_row,int mi_col,BLOCK_SIZE bsize,const int num_planes)59 void av1_reset_skip_context(MACROBLOCKD *xd, int mi_row, int mi_col,
60 BLOCK_SIZE bsize, const int num_planes) {
61 int i;
62 int nplanes;
63 int chroma_ref;
64 chroma_ref =
65 is_chroma_reference(mi_row, mi_col, bsize, xd->plane[1].subsampling_x,
66 xd->plane[1].subsampling_y);
67 nplanes = 1 + (num_planes - 1) * chroma_ref;
68 for (i = 0; i < nplanes; i++) {
69 struct macroblockd_plane *const pd = &xd->plane[i];
70 const BLOCK_SIZE plane_bsize =
71 get_plane_block_size(bsize, pd->subsampling_x, pd->subsampling_y);
72 const int txs_wide = block_size_wide[plane_bsize] >> tx_size_wide_log2[0];
73 const int txs_high = block_size_high[plane_bsize] >> tx_size_high_log2[0];
74 memset(pd->above_context, 0, sizeof(ENTROPY_CONTEXT) * txs_wide);
75 memset(pd->left_context, 0, sizeof(ENTROPY_CONTEXT) * txs_high);
76 }
77 }
78
av1_reset_loop_filter_delta(MACROBLOCKD * xd,int num_planes)79 void av1_reset_loop_filter_delta(MACROBLOCKD *xd, int num_planes) {
80 xd->delta_lf_from_base = 0;
81 const int frame_lf_count =
82 num_planes > 1 ? FRAME_LF_COUNT : FRAME_LF_COUNT - 2;
83 for (int lf_id = 0; lf_id < frame_lf_count; ++lf_id) xd->delta_lf[lf_id] = 0;
84 }
85
av1_reset_loop_restoration(MACROBLOCKD * xd,const int num_planes)86 void av1_reset_loop_restoration(MACROBLOCKD *xd, const int num_planes) {
87 for (int p = 0; p < num_planes; ++p) {
88 set_default_wiener(xd->wiener_info + p);
89 set_default_sgrproj(xd->sgrproj_info + p);
90 }
91 }
92
av1_setup_block_planes(MACROBLOCKD * xd,int ss_x,int ss_y,const int num_planes)93 void av1_setup_block_planes(MACROBLOCKD *xd, int ss_x, int ss_y,
94 const int num_planes) {
95 int i;
96
97 for (i = 0; i < num_planes; i++) {
98 xd->plane[i].plane_type = get_plane_type(i);
99 xd->plane[i].subsampling_x = i ? ss_x : 0;
100 xd->plane[i].subsampling_y = i ? ss_y : 0;
101 }
102 for (i = num_planes; i < MAX_MB_PLANE; i++) {
103 xd->plane[i].subsampling_x = 1;
104 xd->plane[i].subsampling_y = 1;
105 }
106 }
107
108 const int16_t dr_intra_derivative[90] = {
109 // More evenly spread out angles and limited to 10-bit
110 // Values that are 0 will never be used
111 // Approx angle
112 0, 0, 0, //
113 1023, 0, 0, // 3, ...
114 547, 0, 0, // 6, ...
115 372, 0, 0, 0, 0, // 9, ...
116 273, 0, 0, // 14, ...
117 215, 0, 0, // 17, ...
118 178, 0, 0, // 20, ...
119 151, 0, 0, // 23, ... (113 & 203 are base angles)
120 132, 0, 0, // 26, ...
121 116, 0, 0, // 29, ...
122 102, 0, 0, 0, // 32, ...
123 90, 0, 0, // 36, ...
124 80, 0, 0, // 39, ...
125 71, 0, 0, // 42, ...
126 64, 0, 0, // 45, ... (45 & 135 are base angles)
127 57, 0, 0, // 48, ...
128 51, 0, 0, // 51, ...
129 45, 0, 0, 0, // 54, ...
130 40, 0, 0, // 58, ...
131 35, 0, 0, // 61, ...
132 31, 0, 0, // 64, ...
133 27, 0, 0, // 67, ... (67 & 157 are base angles)
134 23, 0, 0, // 70, ...
135 19, 0, 0, // 73, ...
136 15, 0, 0, 0, 0, // 76, ...
137 11, 0, 0, // 81, ...
138 7, 0, 0, // 84, ...
139 3, 0, 0, // 87, ...
140 };
141