/src/aom/av1/decoder/decodemv.c
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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 <assert.h> |
13 | | |
14 | | #include "av1/common/cfl.h" |
15 | | #include "av1/common/common.h" |
16 | | #include "av1/common/entropy.h" |
17 | | #include "av1/common/entropymode.h" |
18 | | #include "av1/common/entropymv.h" |
19 | | #include "av1/common/mvref_common.h" |
20 | | #include "av1/common/pred_common.h" |
21 | | #include "av1/common/reconinter.h" |
22 | | #include "av1/common/reconintra.h" |
23 | | #include "av1/common/seg_common.h" |
24 | | #include "av1/common/warped_motion.h" |
25 | | |
26 | | #include "av1/decoder/decodeframe.h" |
27 | | #include "av1/decoder/decodemv.h" |
28 | | |
29 | | #include "aom_dsp/aom_dsp_common.h" |
30 | | |
31 | | #define ACCT_STR __func__ |
32 | | |
33 | | #define DEC_MISMATCH_DEBUG 0 |
34 | | |
35 | 0 | static PREDICTION_MODE read_intra_mode(aom_reader *r, aom_cdf_prob *cdf) { |
36 | 0 | return (PREDICTION_MODE)aom_read_symbol(r, cdf, INTRA_MODES, ACCT_STR); |
37 | 0 | } |
38 | | |
39 | 0 | static void read_cdef(AV1_COMMON *cm, aom_reader *r, MACROBLOCKD *const xd) { |
40 | 0 | const int skip_txfm = xd->mi[0]->skip_txfm; |
41 | 0 | if (cm->features.coded_lossless) return; |
42 | 0 | if (cm->features.allow_intrabc) { |
43 | 0 | assert(cm->cdef_info.cdef_bits == 0); |
44 | 0 | return; |
45 | 0 | } |
46 | | |
47 | | // At the start of a superblock, mark that we haven't yet read CDEF strengths |
48 | | // for any of the CDEF units contained in this superblock. |
49 | 0 | const int sb_mask = (cm->seq_params->mib_size - 1); |
50 | 0 | const int mi_row_in_sb = (xd->mi_row & sb_mask); |
51 | 0 | const int mi_col_in_sb = (xd->mi_col & sb_mask); |
52 | 0 | if (mi_row_in_sb == 0 && mi_col_in_sb == 0) { |
53 | 0 | xd->cdef_transmitted[0] = xd->cdef_transmitted[1] = |
54 | 0 | xd->cdef_transmitted[2] = xd->cdef_transmitted[3] = false; |
55 | 0 | } |
56 | | |
57 | | // CDEF unit size is 64x64 irrespective of the superblock size. |
58 | 0 | const int cdef_size = 1 << (6 - MI_SIZE_LOG2); |
59 | | |
60 | | // Find index of this CDEF unit in this superblock. |
61 | 0 | const int index_mask = cdef_size; |
62 | 0 | const int cdef_unit_row_in_sb = ((xd->mi_row & index_mask) != 0); |
63 | 0 | const int cdef_unit_col_in_sb = ((xd->mi_col & index_mask) != 0); |
64 | 0 | const int index = (cm->seq_params->sb_size == BLOCK_128X128) |
65 | 0 | ? cdef_unit_col_in_sb + 2 * cdef_unit_row_in_sb |
66 | 0 | : 0; |
67 | | |
68 | | // Read CDEF strength from the first non-skip coding block in this CDEF unit. |
69 | 0 | if (!xd->cdef_transmitted[index] && !skip_txfm) { |
70 | | // CDEF strength for this CDEF unit needs to be read into the MB_MODE_INFO |
71 | | // of the 1st block in this CDEF unit. |
72 | 0 | const int first_block_mask = ~(cdef_size - 1); |
73 | 0 | CommonModeInfoParams *const mi_params = &cm->mi_params; |
74 | 0 | const int grid_idx = |
75 | 0 | get_mi_grid_idx(mi_params, xd->mi_row & first_block_mask, |
76 | 0 | xd->mi_col & first_block_mask); |
77 | 0 | MB_MODE_INFO *const mbmi = mi_params->mi_grid_base[grid_idx]; |
78 | 0 | mbmi->cdef_strength = |
79 | 0 | aom_read_literal(r, cm->cdef_info.cdef_bits, ACCT_STR); |
80 | 0 | xd->cdef_transmitted[index] = true; |
81 | 0 | } |
82 | 0 | } |
83 | | |
84 | | static int read_delta_qindex(AV1_COMMON *cm, const MACROBLOCKD *xd, |
85 | 0 | aom_reader *r, MB_MODE_INFO *const mbmi) { |
86 | 0 | int sign, abs, reduced_delta_qindex = 0; |
87 | 0 | BLOCK_SIZE bsize = mbmi->bsize; |
88 | 0 | const int b_col = xd->mi_col & (cm->seq_params->mib_size - 1); |
89 | 0 | const int b_row = xd->mi_row & (cm->seq_params->mib_size - 1); |
90 | 0 | const int read_delta_q_flag = (b_col == 0 && b_row == 0); |
91 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
92 | |
|
93 | 0 | if ((bsize != cm->seq_params->sb_size || mbmi->skip_txfm == 0) && |
94 | 0 | read_delta_q_flag) { |
95 | 0 | abs = aom_read_symbol(r, ec_ctx->delta_q_cdf, DELTA_Q_PROBS + 1, ACCT_STR); |
96 | 0 | const int smallval = (abs < DELTA_Q_SMALL); |
97 | |
|
98 | 0 | if (!smallval) { |
99 | 0 | const int rem_bits = aom_read_literal(r, 3, ACCT_STR) + 1; |
100 | 0 | const int thr = (1 << rem_bits) + 1; |
101 | 0 | abs = aom_read_literal(r, rem_bits, ACCT_STR) + thr; |
102 | 0 | } |
103 | |
|
104 | 0 | if (abs) { |
105 | 0 | sign = aom_read_bit(r, ACCT_STR); |
106 | 0 | } else { |
107 | 0 | sign = 1; |
108 | 0 | } |
109 | |
|
110 | 0 | reduced_delta_qindex = sign ? -abs : abs; |
111 | 0 | } |
112 | 0 | return reduced_delta_qindex; |
113 | 0 | } |
114 | | static int read_delta_lflevel(const AV1_COMMON *const cm, aom_reader *r, |
115 | | aom_cdf_prob *const cdf, |
116 | | const MB_MODE_INFO *const mbmi, int mi_col, |
117 | 0 | int mi_row) { |
118 | 0 | int reduced_delta_lflevel = 0; |
119 | 0 | const BLOCK_SIZE bsize = mbmi->bsize; |
120 | 0 | const int b_col = mi_col & (cm->seq_params->mib_size - 1); |
121 | 0 | const int b_row = mi_row & (cm->seq_params->mib_size - 1); |
122 | 0 | const int read_delta_lf_flag = (b_col == 0 && b_row == 0); |
123 | |
|
124 | 0 | if ((bsize != cm->seq_params->sb_size || mbmi->skip_txfm == 0) && |
125 | 0 | read_delta_lf_flag) { |
126 | 0 | int abs = aom_read_symbol(r, cdf, DELTA_LF_PROBS + 1, ACCT_STR); |
127 | 0 | const int smallval = (abs < DELTA_LF_SMALL); |
128 | 0 | if (!smallval) { |
129 | 0 | const int rem_bits = aom_read_literal(r, 3, ACCT_STR) + 1; |
130 | 0 | const int thr = (1 << rem_bits) + 1; |
131 | 0 | abs = aom_read_literal(r, rem_bits, ACCT_STR) + thr; |
132 | 0 | } |
133 | 0 | const int sign = abs ? aom_read_bit(r, ACCT_STR) : 1; |
134 | 0 | reduced_delta_lflevel = sign ? -abs : abs; |
135 | 0 | } |
136 | 0 | return reduced_delta_lflevel; |
137 | 0 | } |
138 | | |
139 | | static UV_PREDICTION_MODE read_intra_mode_uv(FRAME_CONTEXT *ec_ctx, |
140 | | aom_reader *r, |
141 | | CFL_ALLOWED_TYPE cfl_allowed, |
142 | 0 | PREDICTION_MODE y_mode) { |
143 | 0 | const UV_PREDICTION_MODE uv_mode = |
144 | 0 | aom_read_symbol(r, ec_ctx->uv_mode_cdf[cfl_allowed][y_mode], |
145 | 0 | UV_INTRA_MODES - !cfl_allowed, ACCT_STR); |
146 | 0 | return uv_mode; |
147 | 0 | } |
148 | | |
149 | | static uint8_t read_cfl_alphas(FRAME_CONTEXT *const ec_ctx, aom_reader *r, |
150 | 0 | int8_t *signs_out) { |
151 | 0 | const int8_t joint_sign = |
152 | 0 | aom_read_symbol(r, ec_ctx->cfl_sign_cdf, CFL_JOINT_SIGNS, "cfl:signs"); |
153 | 0 | uint8_t idx = 0; |
154 | | // Magnitudes are only coded for nonzero values |
155 | 0 | if (CFL_SIGN_U(joint_sign) != CFL_SIGN_ZERO) { |
156 | 0 | aom_cdf_prob *cdf_u = ec_ctx->cfl_alpha_cdf[CFL_CONTEXT_U(joint_sign)]; |
157 | 0 | idx = (uint8_t)aom_read_symbol(r, cdf_u, CFL_ALPHABET_SIZE, "cfl:alpha_u") |
158 | 0 | << CFL_ALPHABET_SIZE_LOG2; |
159 | 0 | } |
160 | 0 | if (CFL_SIGN_V(joint_sign) != CFL_SIGN_ZERO) { |
161 | 0 | aom_cdf_prob *cdf_v = ec_ctx->cfl_alpha_cdf[CFL_CONTEXT_V(joint_sign)]; |
162 | 0 | idx += (uint8_t)aom_read_symbol(r, cdf_v, CFL_ALPHABET_SIZE, "cfl:alpha_v"); |
163 | 0 | } |
164 | 0 | *signs_out = joint_sign; |
165 | 0 | return idx; |
166 | 0 | } |
167 | | |
168 | | static INTERINTRA_MODE read_interintra_mode(MACROBLOCKD *xd, aom_reader *r, |
169 | 0 | int size_group) { |
170 | 0 | const INTERINTRA_MODE ii_mode = (INTERINTRA_MODE)aom_read_symbol( |
171 | 0 | r, xd->tile_ctx->interintra_mode_cdf[size_group], INTERINTRA_MODES, |
172 | 0 | ACCT_STR); |
173 | 0 | return ii_mode; |
174 | 0 | } |
175 | | |
176 | | static PREDICTION_MODE read_inter_mode(FRAME_CONTEXT *ec_ctx, aom_reader *r, |
177 | 0 | int16_t ctx) { |
178 | 0 | int16_t mode_ctx = ctx & NEWMV_CTX_MASK; |
179 | 0 | int is_newmv, is_zeromv, is_refmv; |
180 | 0 | is_newmv = aom_read_symbol(r, ec_ctx->newmv_cdf[mode_ctx], 2, ACCT_STR) == 0; |
181 | 0 | if (is_newmv) return NEWMV; |
182 | | |
183 | 0 | mode_ctx = (ctx >> GLOBALMV_OFFSET) & GLOBALMV_CTX_MASK; |
184 | 0 | is_zeromv = |
185 | 0 | aom_read_symbol(r, ec_ctx->zeromv_cdf[mode_ctx], 2, ACCT_STR) == 0; |
186 | 0 | if (is_zeromv) return GLOBALMV; |
187 | | |
188 | 0 | mode_ctx = (ctx >> REFMV_OFFSET) & REFMV_CTX_MASK; |
189 | 0 | is_refmv = aom_read_symbol(r, ec_ctx->refmv_cdf[mode_ctx], 2, ACCT_STR) == 0; |
190 | 0 | if (is_refmv) |
191 | 0 | return NEARESTMV; |
192 | 0 | else |
193 | 0 | return NEARMV; |
194 | 0 | } |
195 | | |
196 | | static void read_drl_idx(FRAME_CONTEXT *ec_ctx, DecoderCodingBlock *dcb, |
197 | 0 | MB_MODE_INFO *mbmi, aom_reader *r) { |
198 | 0 | MACROBLOCKD *const xd = &dcb->xd; |
199 | 0 | uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame); |
200 | 0 | mbmi->ref_mv_idx = 0; |
201 | 0 | if (mbmi->mode == NEWMV || mbmi->mode == NEW_NEWMV) { |
202 | 0 | for (int idx = 0; idx < 2; ++idx) { |
203 | 0 | if (dcb->ref_mv_count[ref_frame_type] > idx + 1) { |
204 | 0 | uint8_t drl_ctx = av1_drl_ctx(xd->weight[ref_frame_type], idx); |
205 | 0 | int drl_idx = aom_read_symbol(r, ec_ctx->drl_cdf[drl_ctx], 2, ACCT_STR); |
206 | 0 | mbmi->ref_mv_idx = idx + drl_idx; |
207 | 0 | if (!drl_idx) return; |
208 | 0 | } |
209 | 0 | } |
210 | 0 | } |
211 | 0 | if (have_nearmv_in_inter_mode(mbmi->mode)) { |
212 | | // Offset the NEARESTMV mode. |
213 | | // TODO(jingning): Unify the two syntax decoding loops after the NEARESTMV |
214 | | // mode is factored in. |
215 | 0 | for (int idx = 1; idx < 3; ++idx) { |
216 | 0 | if (dcb->ref_mv_count[ref_frame_type] > idx + 1) { |
217 | 0 | uint8_t drl_ctx = av1_drl_ctx(xd->weight[ref_frame_type], idx); |
218 | 0 | int drl_idx = aom_read_symbol(r, ec_ctx->drl_cdf[drl_ctx], 2, ACCT_STR); |
219 | 0 | mbmi->ref_mv_idx = idx + drl_idx - 1; |
220 | 0 | if (!drl_idx) return; |
221 | 0 | } |
222 | 0 | } |
223 | 0 | } |
224 | 0 | } |
225 | | |
226 | | static MOTION_MODE read_motion_mode(AV1_COMMON *cm, MACROBLOCKD *xd, |
227 | 0 | MB_MODE_INFO *mbmi, aom_reader *r) { |
228 | 0 | if (cm->features.switchable_motion_mode == 0) return SIMPLE_TRANSLATION; |
229 | 0 | if (mbmi->skip_mode) return SIMPLE_TRANSLATION; |
230 | | |
231 | 0 | const MOTION_MODE last_motion_mode_allowed = motion_mode_allowed( |
232 | 0 | xd->global_motion, xd, mbmi, cm->features.allow_warped_motion); |
233 | 0 | int motion_mode; |
234 | |
|
235 | 0 | if (last_motion_mode_allowed == SIMPLE_TRANSLATION) return SIMPLE_TRANSLATION; |
236 | | |
237 | 0 | if (last_motion_mode_allowed == OBMC_CAUSAL) { |
238 | 0 | motion_mode = |
239 | 0 | aom_read_symbol(r, xd->tile_ctx->obmc_cdf[mbmi->bsize], 2, ACCT_STR); |
240 | 0 | return (MOTION_MODE)(SIMPLE_TRANSLATION + motion_mode); |
241 | 0 | } else { |
242 | 0 | motion_mode = aom_read_symbol(r, xd->tile_ctx->motion_mode_cdf[mbmi->bsize], |
243 | 0 | MOTION_MODES, ACCT_STR); |
244 | 0 | return (MOTION_MODE)(SIMPLE_TRANSLATION + motion_mode); |
245 | 0 | } |
246 | 0 | } |
247 | | |
248 | | static PREDICTION_MODE read_inter_compound_mode(MACROBLOCKD *xd, aom_reader *r, |
249 | 0 | int16_t ctx) { |
250 | 0 | const int mode = |
251 | 0 | aom_read_symbol(r, xd->tile_ctx->inter_compound_mode_cdf[ctx], |
252 | 0 | INTER_COMPOUND_MODES, ACCT_STR); |
253 | 0 | assert(is_inter_compound_mode(NEAREST_NEARESTMV + mode)); |
254 | 0 | return NEAREST_NEARESTMV + mode; |
255 | 0 | } |
256 | | |
257 | 0 | int av1_neg_deinterleave(int diff, int ref, int max) { |
258 | 0 | if (!ref) return diff; |
259 | 0 | if (ref >= (max - 1)) return max - diff - 1; |
260 | 0 | if (2 * ref < max) { |
261 | 0 | if (diff <= 2 * ref) { |
262 | 0 | if (diff & 1) |
263 | 0 | return ref + ((diff + 1) >> 1); |
264 | 0 | else |
265 | 0 | return ref - (diff >> 1); |
266 | 0 | } |
267 | 0 | return diff; |
268 | 0 | } else { |
269 | 0 | if (diff <= 2 * (max - ref - 1)) { |
270 | 0 | if (diff & 1) |
271 | 0 | return ref + ((diff + 1) >> 1); |
272 | 0 | else |
273 | 0 | return ref - (diff >> 1); |
274 | 0 | } |
275 | 0 | return max - (diff + 1); |
276 | 0 | } |
277 | 0 | } |
278 | | |
279 | | static int read_segment_id(AV1_COMMON *const cm, const MACROBLOCKD *const xd, |
280 | 0 | aom_reader *r, int skip) { |
281 | 0 | int cdf_num; |
282 | 0 | const int pred = av1_get_spatial_seg_pred(cm, xd, &cdf_num); |
283 | 0 | if (skip) return pred; |
284 | | |
285 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
286 | 0 | struct segmentation *const seg = &cm->seg; |
287 | 0 | struct segmentation_probs *const segp = &ec_ctx->seg; |
288 | 0 | aom_cdf_prob *pred_cdf = segp->spatial_pred_seg_cdf[cdf_num]; |
289 | 0 | const int coded_id = aom_read_symbol(r, pred_cdf, MAX_SEGMENTS, ACCT_STR); |
290 | 0 | const int segment_id = |
291 | 0 | av1_neg_deinterleave(coded_id, pred, seg->last_active_segid + 1); |
292 | |
|
293 | 0 | if (segment_id < 0 || segment_id > seg->last_active_segid) { |
294 | 0 | aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME, |
295 | 0 | "Corrupted segment_ids"); |
296 | 0 | } |
297 | 0 | return segment_id; |
298 | 0 | } |
299 | | |
300 | | static int dec_get_segment_id(const AV1_COMMON *cm, const uint8_t *segment_ids, |
301 | 0 | int mi_offset, int x_mis, int y_mis) { |
302 | 0 | int segment_id = INT_MAX; |
303 | |
|
304 | 0 | for (int y = 0; y < y_mis; y++) |
305 | 0 | for (int x = 0; x < x_mis; x++) |
306 | 0 | segment_id = AOMMIN( |
307 | 0 | segment_id, segment_ids[mi_offset + y * cm->mi_params.mi_cols + x]); |
308 | |
|
309 | 0 | assert(segment_id >= 0 && segment_id < MAX_SEGMENTS); |
310 | 0 | return segment_id; |
311 | 0 | } |
312 | | |
313 | | static void set_segment_id(AV1_COMMON *cm, int mi_offset, int x_mis, int y_mis, |
314 | 0 | int segment_id) { |
315 | 0 | assert(segment_id >= 0 && segment_id < MAX_SEGMENTS); |
316 | |
|
317 | 0 | for (int y = 0; y < y_mis; y++) |
318 | 0 | for (int x = 0; x < x_mis; x++) |
319 | 0 | cm->cur_frame->seg_map[mi_offset + y * cm->mi_params.mi_cols + x] = |
320 | 0 | segment_id; |
321 | 0 | } |
322 | | |
323 | | static int read_intra_segment_id(AV1_COMMON *const cm, |
324 | | const MACROBLOCKD *const xd, int bsize, |
325 | 0 | aom_reader *r, int skip) { |
326 | 0 | struct segmentation *const seg = &cm->seg; |
327 | 0 | if (!seg->enabled) return 0; // Default for disabled segmentation |
328 | 0 | assert(seg->update_map && !seg->temporal_update); |
329 | |
|
330 | 0 | const CommonModeInfoParams *const mi_params = &cm->mi_params; |
331 | 0 | const int mi_row = xd->mi_row; |
332 | 0 | const int mi_col = xd->mi_col; |
333 | 0 | const int mi_offset = mi_row * mi_params->mi_cols + mi_col; |
334 | 0 | const int bw = mi_size_wide[bsize]; |
335 | 0 | const int bh = mi_size_high[bsize]; |
336 | 0 | const int x_mis = AOMMIN(mi_params->mi_cols - mi_col, bw); |
337 | 0 | const int y_mis = AOMMIN(mi_params->mi_rows - mi_row, bh); |
338 | 0 | const int segment_id = read_segment_id(cm, xd, r, skip); |
339 | 0 | set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id); |
340 | 0 | return segment_id; |
341 | 0 | } |
342 | | |
343 | | static void copy_segment_id(const CommonModeInfoParams *const mi_params, |
344 | | const uint8_t *last_segment_ids, |
345 | | uint8_t *current_segment_ids, int mi_offset, |
346 | 0 | int x_mis, int y_mis) { |
347 | 0 | for (int y = 0; y < y_mis; y++) |
348 | 0 | for (int x = 0; x < x_mis; x++) |
349 | 0 | current_segment_ids[mi_offset + y * mi_params->mi_cols + x] = |
350 | 0 | last_segment_ids |
351 | 0 | ? last_segment_ids[mi_offset + y * mi_params->mi_cols + x] |
352 | 0 | : 0; |
353 | 0 | } |
354 | | |
355 | | static int get_predicted_segment_id(AV1_COMMON *const cm, int mi_offset, |
356 | 0 | int x_mis, int y_mis) { |
357 | 0 | return cm->last_frame_seg_map ? dec_get_segment_id(cm, cm->last_frame_seg_map, |
358 | 0 | mi_offset, x_mis, y_mis) |
359 | 0 | : 0; |
360 | 0 | } |
361 | | |
362 | | static int read_inter_segment_id(AV1_COMMON *const cm, MACROBLOCKD *const xd, |
363 | 0 | int preskip, aom_reader *r) { |
364 | 0 | struct segmentation *const seg = &cm->seg; |
365 | 0 | const CommonModeInfoParams *const mi_params = &cm->mi_params; |
366 | 0 | MB_MODE_INFO *const mbmi = xd->mi[0]; |
367 | 0 | const int mi_row = xd->mi_row; |
368 | 0 | const int mi_col = xd->mi_col; |
369 | 0 | const int mi_offset = mi_row * mi_params->mi_cols + mi_col; |
370 | 0 | const int bw = mi_size_wide[mbmi->bsize]; |
371 | 0 | const int bh = mi_size_high[mbmi->bsize]; |
372 | | |
373 | | // TODO(slavarnway): move x_mis, y_mis into xd ????? |
374 | 0 | const int x_mis = AOMMIN(mi_params->mi_cols - mi_col, bw); |
375 | 0 | const int y_mis = AOMMIN(mi_params->mi_rows - mi_row, bh); |
376 | |
|
377 | 0 | if (!seg->enabled) return 0; // Default for disabled segmentation |
378 | | |
379 | 0 | if (!seg->update_map) { |
380 | 0 | copy_segment_id(mi_params, cm->last_frame_seg_map, cm->cur_frame->seg_map, |
381 | 0 | mi_offset, x_mis, y_mis); |
382 | 0 | return get_predicted_segment_id(cm, mi_offset, x_mis, y_mis); |
383 | 0 | } |
384 | | |
385 | 0 | int segment_id; |
386 | 0 | if (preskip) { |
387 | 0 | if (!seg->segid_preskip) return 0; |
388 | 0 | } else { |
389 | 0 | if (mbmi->skip_txfm) { |
390 | 0 | if (seg->temporal_update) { |
391 | 0 | mbmi->seg_id_predicted = 0; |
392 | 0 | } |
393 | 0 | segment_id = read_segment_id(cm, xd, r, 1); |
394 | 0 | set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id); |
395 | 0 | return segment_id; |
396 | 0 | } |
397 | 0 | } |
398 | | |
399 | 0 | if (seg->temporal_update) { |
400 | 0 | const int ctx = av1_get_pred_context_seg_id(xd); |
401 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
402 | 0 | struct segmentation_probs *const segp = &ec_ctx->seg; |
403 | 0 | aom_cdf_prob *pred_cdf = segp->pred_cdf[ctx]; |
404 | 0 | mbmi->seg_id_predicted = aom_read_symbol(r, pred_cdf, 2, ACCT_STR); |
405 | 0 | if (mbmi->seg_id_predicted) { |
406 | 0 | segment_id = get_predicted_segment_id(cm, mi_offset, x_mis, y_mis); |
407 | 0 | } else { |
408 | 0 | segment_id = read_segment_id(cm, xd, r, 0); |
409 | 0 | } |
410 | 0 | } else { |
411 | 0 | segment_id = read_segment_id(cm, xd, r, 0); |
412 | 0 | } |
413 | 0 | set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id); |
414 | 0 | return segment_id; |
415 | 0 | } |
416 | | |
417 | | static int read_skip_mode(AV1_COMMON *cm, const MACROBLOCKD *xd, int segment_id, |
418 | 0 | aom_reader *r) { |
419 | 0 | if (!cm->current_frame.skip_mode_info.skip_mode_flag) return 0; |
420 | | |
421 | 0 | if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) { |
422 | 0 | return 0; |
423 | 0 | } |
424 | | |
425 | 0 | if (!is_comp_ref_allowed(xd->mi[0]->bsize)) return 0; |
426 | | |
427 | 0 | if (segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME) || |
428 | 0 | segfeature_active(&cm->seg, segment_id, SEG_LVL_GLOBALMV)) { |
429 | | // These features imply single-reference mode, while skip mode implies |
430 | | // compound reference. Hence, the two are mutually exclusive. |
431 | | // In other words, skip_mode is implicitly 0 here. |
432 | 0 | return 0; |
433 | 0 | } |
434 | | |
435 | 0 | const int ctx = av1_get_skip_mode_context(xd); |
436 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
437 | 0 | const int skip_mode = |
438 | 0 | aom_read_symbol(r, ec_ctx->skip_mode_cdfs[ctx], 2, ACCT_STR); |
439 | 0 | return skip_mode; |
440 | 0 | } |
441 | | |
442 | | static int read_skip_txfm(AV1_COMMON *cm, const MACROBLOCKD *xd, int segment_id, |
443 | 0 | aom_reader *r) { |
444 | 0 | if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) { |
445 | 0 | return 1; |
446 | 0 | } else { |
447 | 0 | const int ctx = av1_get_skip_txfm_context(xd); |
448 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
449 | 0 | const int skip_txfm = |
450 | 0 | aom_read_symbol(r, ec_ctx->skip_txfm_cdfs[ctx], 2, ACCT_STR); |
451 | 0 | return skip_txfm; |
452 | 0 | } |
453 | 0 | } |
454 | | |
455 | | // Merge the sorted list of cached colors(cached_colors[0...n_cached_colors-1]) |
456 | | // and the sorted list of transmitted colors(colors[n_cached_colors...n-1]) into |
457 | | // one single sorted list(colors[...]). |
458 | | static void merge_colors(uint16_t *colors, uint16_t *cached_colors, |
459 | 0 | int n_colors, int n_cached_colors) { |
460 | 0 | if (n_cached_colors == 0) return; |
461 | 0 | int cache_idx = 0, trans_idx = n_cached_colors; |
462 | 0 | for (int i = 0; i < n_colors; ++i) { |
463 | 0 | if (cache_idx < n_cached_colors && |
464 | 0 | (trans_idx >= n_colors || |
465 | 0 | cached_colors[cache_idx] <= colors[trans_idx])) { |
466 | 0 | colors[i] = cached_colors[cache_idx++]; |
467 | 0 | } else { |
468 | 0 | assert(trans_idx < n_colors); |
469 | 0 | colors[i] = colors[trans_idx++]; |
470 | 0 | } |
471 | 0 | } |
472 | 0 | } |
473 | | |
474 | | static void read_palette_colors_y(MACROBLOCKD *const xd, int bit_depth, |
475 | 0 | PALETTE_MODE_INFO *const pmi, aom_reader *r) { |
476 | 0 | uint16_t color_cache[2 * PALETTE_MAX_SIZE]; |
477 | 0 | uint16_t cached_colors[PALETTE_MAX_SIZE]; |
478 | 0 | const int n_cache = av1_get_palette_cache(xd, 0, color_cache); |
479 | 0 | const int n = pmi->palette_size[0]; |
480 | 0 | int idx = 0; |
481 | 0 | for (int i = 0; i < n_cache && idx < n; ++i) |
482 | 0 | if (aom_read_bit(r, ACCT_STR)) cached_colors[idx++] = color_cache[i]; |
483 | 0 | if (idx < n) { |
484 | 0 | const int n_cached_colors = idx; |
485 | 0 | pmi->palette_colors[idx++] = aom_read_literal(r, bit_depth, ACCT_STR); |
486 | 0 | if (idx < n) { |
487 | 0 | const int min_bits = bit_depth - 3; |
488 | 0 | int bits = min_bits + aom_read_literal(r, 2, ACCT_STR); |
489 | 0 | int range = (1 << bit_depth) - pmi->palette_colors[idx - 1] - 1; |
490 | 0 | for (; idx < n; ++idx) { |
491 | 0 | assert(range >= 0); |
492 | 0 | const int delta = aom_read_literal(r, bits, ACCT_STR) + 1; |
493 | 0 | pmi->palette_colors[idx] = clamp(pmi->palette_colors[idx - 1] + delta, |
494 | 0 | 0, (1 << bit_depth) - 1); |
495 | 0 | range -= (pmi->palette_colors[idx] - pmi->palette_colors[idx - 1]); |
496 | 0 | bits = AOMMIN(bits, av1_ceil_log2(range)); |
497 | 0 | } |
498 | 0 | } |
499 | 0 | merge_colors(pmi->palette_colors, cached_colors, n, n_cached_colors); |
500 | 0 | } else { |
501 | 0 | memcpy(pmi->palette_colors, cached_colors, n * sizeof(cached_colors[0])); |
502 | 0 | } |
503 | 0 | } |
504 | | |
505 | | static void read_palette_colors_uv(MACROBLOCKD *const xd, int bit_depth, |
506 | | PALETTE_MODE_INFO *const pmi, |
507 | 0 | aom_reader *r) { |
508 | 0 | const int n = pmi->palette_size[1]; |
509 | | // U channel colors. |
510 | 0 | uint16_t color_cache[2 * PALETTE_MAX_SIZE]; |
511 | 0 | uint16_t cached_colors[PALETTE_MAX_SIZE]; |
512 | 0 | const int n_cache = av1_get_palette_cache(xd, 1, color_cache); |
513 | 0 | int idx = 0; |
514 | 0 | for (int i = 0; i < n_cache && idx < n; ++i) |
515 | 0 | if (aom_read_bit(r, ACCT_STR)) cached_colors[idx++] = color_cache[i]; |
516 | 0 | if (idx < n) { |
517 | 0 | const int n_cached_colors = idx; |
518 | 0 | idx += PALETTE_MAX_SIZE; |
519 | 0 | pmi->palette_colors[idx++] = aom_read_literal(r, bit_depth, ACCT_STR); |
520 | 0 | if (idx < PALETTE_MAX_SIZE + n) { |
521 | 0 | const int min_bits = bit_depth - 3; |
522 | 0 | int bits = min_bits + aom_read_literal(r, 2, ACCT_STR); |
523 | 0 | int range = (1 << bit_depth) - pmi->palette_colors[idx - 1]; |
524 | 0 | for (; idx < PALETTE_MAX_SIZE + n; ++idx) { |
525 | 0 | assert(range >= 0); |
526 | 0 | const int delta = aom_read_literal(r, bits, ACCT_STR); |
527 | 0 | pmi->palette_colors[idx] = clamp(pmi->palette_colors[idx - 1] + delta, |
528 | 0 | 0, (1 << bit_depth) - 1); |
529 | 0 | range -= (pmi->palette_colors[idx] - pmi->palette_colors[idx - 1]); |
530 | 0 | bits = AOMMIN(bits, av1_ceil_log2(range)); |
531 | 0 | } |
532 | 0 | } |
533 | 0 | merge_colors(pmi->palette_colors + PALETTE_MAX_SIZE, cached_colors, n, |
534 | 0 | n_cached_colors); |
535 | 0 | } else { |
536 | 0 | memcpy(pmi->palette_colors + PALETTE_MAX_SIZE, cached_colors, |
537 | 0 | n * sizeof(cached_colors[0])); |
538 | 0 | } |
539 | | |
540 | | // V channel colors. |
541 | 0 | if (aom_read_bit(r, ACCT_STR)) { // Delta encoding. |
542 | 0 | const int min_bits_v = bit_depth - 4; |
543 | 0 | const int max_val = 1 << bit_depth; |
544 | 0 | int bits = min_bits_v + aom_read_literal(r, 2, ACCT_STR); |
545 | 0 | pmi->palette_colors[2 * PALETTE_MAX_SIZE] = |
546 | 0 | aom_read_literal(r, bit_depth, ACCT_STR); |
547 | 0 | for (int i = 1; i < n; ++i) { |
548 | 0 | int delta = aom_read_literal(r, bits, ACCT_STR); |
549 | 0 | if (delta && aom_read_bit(r, ACCT_STR)) delta = -delta; |
550 | 0 | int val = (int)pmi->palette_colors[2 * PALETTE_MAX_SIZE + i - 1] + delta; |
551 | 0 | if (val < 0) val += max_val; |
552 | 0 | if (val >= max_val) val -= max_val; |
553 | 0 | pmi->palette_colors[2 * PALETTE_MAX_SIZE + i] = val; |
554 | 0 | } |
555 | 0 | } else { |
556 | 0 | for (int i = 0; i < n; ++i) { |
557 | 0 | pmi->palette_colors[2 * PALETTE_MAX_SIZE + i] = |
558 | 0 | aom_read_literal(r, bit_depth, ACCT_STR); |
559 | 0 | } |
560 | 0 | } |
561 | 0 | } |
562 | | |
563 | | static void read_palette_mode_info(AV1_COMMON *const cm, MACROBLOCKD *const xd, |
564 | 0 | aom_reader *r) { |
565 | 0 | const int num_planes = av1_num_planes(cm); |
566 | 0 | MB_MODE_INFO *const mbmi = xd->mi[0]; |
567 | 0 | const BLOCK_SIZE bsize = mbmi->bsize; |
568 | 0 | assert(av1_allow_palette(cm->features.allow_screen_content_tools, bsize)); |
569 | 0 | PALETTE_MODE_INFO *const pmi = &mbmi->palette_mode_info; |
570 | 0 | const int bsize_ctx = av1_get_palette_bsize_ctx(bsize); |
571 | |
|
572 | 0 | if (mbmi->mode == DC_PRED) { |
573 | 0 | const int palette_mode_ctx = av1_get_palette_mode_ctx(xd); |
574 | 0 | const int modev = aom_read_symbol( |
575 | 0 | r, xd->tile_ctx->palette_y_mode_cdf[bsize_ctx][palette_mode_ctx], 2, |
576 | 0 | ACCT_STR); |
577 | 0 | if (modev) { |
578 | 0 | pmi->palette_size[0] = |
579 | 0 | aom_read_symbol(r, xd->tile_ctx->palette_y_size_cdf[bsize_ctx], |
580 | 0 | PALETTE_SIZES, ACCT_STR) + |
581 | 0 | 2; |
582 | 0 | read_palette_colors_y(xd, cm->seq_params->bit_depth, pmi, r); |
583 | 0 | } |
584 | 0 | } |
585 | 0 | if (num_planes > 1 && mbmi->uv_mode == UV_DC_PRED && xd->is_chroma_ref) { |
586 | 0 | const int palette_uv_mode_ctx = (pmi->palette_size[0] > 0); |
587 | 0 | const int modev = aom_read_symbol( |
588 | 0 | r, xd->tile_ctx->palette_uv_mode_cdf[palette_uv_mode_ctx], 2, ACCT_STR); |
589 | 0 | if (modev) { |
590 | 0 | pmi->palette_size[1] = |
591 | 0 | aom_read_symbol(r, xd->tile_ctx->palette_uv_size_cdf[bsize_ctx], |
592 | 0 | PALETTE_SIZES, ACCT_STR) + |
593 | 0 | 2; |
594 | 0 | read_palette_colors_uv(xd, cm->seq_params->bit_depth, pmi, r); |
595 | 0 | } |
596 | 0 | } |
597 | 0 | } |
598 | | |
599 | 0 | static int read_angle_delta(aom_reader *r, aom_cdf_prob *cdf) { |
600 | 0 | const int sym = aom_read_symbol(r, cdf, 2 * MAX_ANGLE_DELTA + 1, ACCT_STR); |
601 | 0 | return sym - MAX_ANGLE_DELTA; |
602 | 0 | } |
603 | | |
604 | | static void read_filter_intra_mode_info(const AV1_COMMON *const cm, |
605 | 0 | MACROBLOCKD *const xd, aom_reader *r) { |
606 | 0 | MB_MODE_INFO *const mbmi = xd->mi[0]; |
607 | 0 | FILTER_INTRA_MODE_INFO *filter_intra_mode_info = |
608 | 0 | &mbmi->filter_intra_mode_info; |
609 | |
|
610 | 0 | if (av1_filter_intra_allowed(cm, mbmi)) { |
611 | 0 | filter_intra_mode_info->use_filter_intra = aom_read_symbol( |
612 | 0 | r, xd->tile_ctx->filter_intra_cdfs[mbmi->bsize], 2, ACCT_STR); |
613 | 0 | if (filter_intra_mode_info->use_filter_intra) { |
614 | 0 | filter_intra_mode_info->filter_intra_mode = aom_read_symbol( |
615 | 0 | r, xd->tile_ctx->filter_intra_mode_cdf, FILTER_INTRA_MODES, ACCT_STR); |
616 | 0 | } |
617 | 0 | } else { |
618 | 0 | filter_intra_mode_info->use_filter_intra = 0; |
619 | 0 | } |
620 | 0 | } |
621 | | |
622 | | void av1_read_tx_type(const AV1_COMMON *const cm, MACROBLOCKD *xd, int blk_row, |
623 | 0 | int blk_col, TX_SIZE tx_size, aom_reader *r) { |
624 | 0 | MB_MODE_INFO *mbmi = xd->mi[0]; |
625 | 0 | uint8_t *tx_type = |
626 | 0 | &xd->tx_type_map[blk_row * xd->tx_type_map_stride + blk_col]; |
627 | 0 | *tx_type = DCT_DCT; |
628 | | |
629 | | // No need to read transform type if block is skipped. |
630 | 0 | if (mbmi->skip_txfm || |
631 | 0 | segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) |
632 | 0 | return; |
633 | | |
634 | | // No need to read transform type for lossless mode(qindex==0). |
635 | 0 | const int qindex = xd->qindex[mbmi->segment_id]; |
636 | 0 | if (qindex == 0) return; |
637 | | |
638 | 0 | const int inter_block = is_inter_block(mbmi); |
639 | 0 | if (get_ext_tx_types(tx_size, inter_block, cm->features.reduced_tx_set_used) > |
640 | 0 | 1) { |
641 | 0 | const TxSetType tx_set_type = av1_get_ext_tx_set_type( |
642 | 0 | tx_size, inter_block, cm->features.reduced_tx_set_used); |
643 | 0 | const int eset = |
644 | 0 | get_ext_tx_set(tx_size, inter_block, cm->features.reduced_tx_set_used); |
645 | | // eset == 0 should correspond to a set with only DCT_DCT and |
646 | | // there is no need to read the tx_type |
647 | 0 | assert(eset != 0); |
648 | |
|
649 | 0 | const TX_SIZE square_tx_size = txsize_sqr_map[tx_size]; |
650 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
651 | 0 | if (inter_block) { |
652 | 0 | *tx_type = av1_ext_tx_inv[tx_set_type][aom_read_symbol( |
653 | 0 | r, ec_ctx->inter_ext_tx_cdf[eset][square_tx_size], |
654 | 0 | av1_num_ext_tx_set[tx_set_type], ACCT_STR)]; |
655 | 0 | } else { |
656 | 0 | const PREDICTION_MODE intra_mode = |
657 | 0 | mbmi->filter_intra_mode_info.use_filter_intra |
658 | 0 | ? fimode_to_intradir[mbmi->filter_intra_mode_info |
659 | 0 | .filter_intra_mode] |
660 | 0 | : mbmi->mode; |
661 | 0 | *tx_type = av1_ext_tx_inv[tx_set_type][aom_read_symbol( |
662 | 0 | r, ec_ctx->intra_ext_tx_cdf[eset][square_tx_size][intra_mode], |
663 | 0 | av1_num_ext_tx_set[tx_set_type], ACCT_STR)]; |
664 | 0 | } |
665 | 0 | } |
666 | 0 | } |
667 | | |
668 | | static INLINE void read_mv(aom_reader *r, MV *mv, const MV *ref, |
669 | | nmv_context *ctx, MvSubpelPrecision precision); |
670 | | |
671 | | static INLINE int is_mv_valid(const MV *mv); |
672 | | |
673 | | static INLINE int assign_dv(AV1_COMMON *cm, MACROBLOCKD *xd, int_mv *mv, |
674 | | const int_mv *ref_mv, int mi_row, int mi_col, |
675 | 0 | BLOCK_SIZE bsize, aom_reader *r) { |
676 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
677 | 0 | read_mv(r, &mv->as_mv, &ref_mv->as_mv, &ec_ctx->ndvc, MV_SUBPEL_NONE); |
678 | | // DV should not have sub-pel. |
679 | 0 | assert((mv->as_mv.col & 7) == 0); |
680 | 0 | assert((mv->as_mv.row & 7) == 0); |
681 | 0 | mv->as_mv.col = (mv->as_mv.col >> 3) * 8; |
682 | 0 | mv->as_mv.row = (mv->as_mv.row >> 3) * 8; |
683 | 0 | int valid = is_mv_valid(&mv->as_mv) && |
684 | 0 | av1_is_dv_valid(mv->as_mv, cm, xd, mi_row, mi_col, bsize, |
685 | 0 | cm->seq_params->mib_size_log2); |
686 | 0 | return valid; |
687 | 0 | } |
688 | | |
689 | | static void read_intrabc_info(AV1_COMMON *const cm, DecoderCodingBlock *dcb, |
690 | 0 | aom_reader *r) { |
691 | 0 | MACROBLOCKD *const xd = &dcb->xd; |
692 | 0 | MB_MODE_INFO *const mbmi = xd->mi[0]; |
693 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
694 | 0 | mbmi->use_intrabc = aom_read_symbol(r, ec_ctx->intrabc_cdf, 2, ACCT_STR); |
695 | 0 | if (mbmi->use_intrabc) { |
696 | 0 | BLOCK_SIZE bsize = mbmi->bsize; |
697 | 0 | mbmi->mode = DC_PRED; |
698 | 0 | mbmi->uv_mode = UV_DC_PRED; |
699 | 0 | mbmi->interp_filters = av1_broadcast_interp_filter(BILINEAR); |
700 | 0 | mbmi->motion_mode = SIMPLE_TRANSLATION; |
701 | |
|
702 | 0 | int16_t inter_mode_ctx[MODE_CTX_REF_FRAMES]; |
703 | 0 | int_mv ref_mvs[INTRA_FRAME + 1][MAX_MV_REF_CANDIDATES]; |
704 | |
|
705 | 0 | av1_find_mv_refs(cm, xd, mbmi, INTRA_FRAME, dcb->ref_mv_count, |
706 | 0 | xd->ref_mv_stack, xd->weight, ref_mvs, /*global_mvs=*/NULL, |
707 | 0 | inter_mode_ctx); |
708 | |
|
709 | 0 | int_mv nearestmv, nearmv; |
710 | |
|
711 | 0 | av1_find_best_ref_mvs(0, ref_mvs[INTRA_FRAME], &nearestmv, &nearmv, 0); |
712 | 0 | int_mv dv_ref = nearestmv.as_int == 0 ? nearmv : nearestmv; |
713 | 0 | if (dv_ref.as_int == 0) |
714 | 0 | av1_find_ref_dv(&dv_ref, &xd->tile, cm->seq_params->mib_size, xd->mi_row); |
715 | | // Ref DV should not have sub-pel. |
716 | 0 | int valid_dv = (dv_ref.as_mv.col & 7) == 0 && (dv_ref.as_mv.row & 7) == 0; |
717 | 0 | dv_ref.as_mv.col = (dv_ref.as_mv.col >> 3) * 8; |
718 | 0 | dv_ref.as_mv.row = (dv_ref.as_mv.row >> 3) * 8; |
719 | 0 | valid_dv = valid_dv && assign_dv(cm, xd, &mbmi->mv[0], &dv_ref, xd->mi_row, |
720 | 0 | xd->mi_col, bsize, r); |
721 | 0 | if (!valid_dv) { |
722 | | // Intra bc motion vectors are not valid - signal corrupt frame |
723 | 0 | aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME, |
724 | 0 | "Invalid intrabc dv"); |
725 | 0 | } |
726 | 0 | } |
727 | 0 | } |
728 | | |
729 | | // If delta q is present, reads delta_q index. |
730 | | // Also reads delta_q loop filter levels, if present. |
731 | | static void read_delta_q_params(AV1_COMMON *const cm, MACROBLOCKD *const xd, |
732 | 0 | aom_reader *r) { |
733 | 0 | DeltaQInfo *const delta_q_info = &cm->delta_q_info; |
734 | |
|
735 | 0 | if (delta_q_info->delta_q_present_flag) { |
736 | 0 | MB_MODE_INFO *const mbmi = xd->mi[0]; |
737 | 0 | xd->current_base_qindex += |
738 | 0 | read_delta_qindex(cm, xd, r, mbmi) * delta_q_info->delta_q_res; |
739 | | /* Normative: Clamp to [1,MAXQ] to not interfere with lossless mode */ |
740 | 0 | xd->current_base_qindex = clamp(xd->current_base_qindex, 1, MAXQ); |
741 | 0 | FRAME_CONTEXT *const ec_ctx = xd->tile_ctx; |
742 | 0 | if (delta_q_info->delta_lf_present_flag) { |
743 | 0 | const int mi_row = xd->mi_row; |
744 | 0 | const int mi_col = xd->mi_col; |
745 | 0 | if (delta_q_info->delta_lf_multi) { |
746 | 0 | const int frame_lf_count = |
747 | 0 | av1_num_planes(cm) > 1 ? FRAME_LF_COUNT : FRAME_LF_COUNT - 2; |
748 | 0 | for (int lf_id = 0; lf_id < frame_lf_count; ++lf_id) { |
749 | 0 | const int tmp_lvl = |
750 | 0 | xd->delta_lf[lf_id] + |
751 | 0 | read_delta_lflevel(cm, r, ec_ctx->delta_lf_multi_cdf[lf_id], mbmi, |
752 | 0 | mi_col, mi_row) * |
753 | 0 | delta_q_info->delta_lf_res; |
754 | 0 | mbmi->delta_lf[lf_id] = xd->delta_lf[lf_id] = |
755 | 0 | clamp(tmp_lvl, -MAX_LOOP_FILTER, MAX_LOOP_FILTER); |
756 | 0 | } |
757 | 0 | } else { |
758 | 0 | const int tmp_lvl = xd->delta_lf_from_base + |
759 | 0 | read_delta_lflevel(cm, r, ec_ctx->delta_lf_cdf, |
760 | 0 | mbmi, mi_col, mi_row) * |
761 | 0 | delta_q_info->delta_lf_res; |
762 | 0 | mbmi->delta_lf_from_base = xd->delta_lf_from_base = |
763 | 0 | clamp(tmp_lvl, -MAX_LOOP_FILTER, MAX_LOOP_FILTER); |
764 | 0 | } |
765 | 0 | } |
766 | 0 | } |
767 | 0 | } |
768 | | |
769 | | static void read_intra_frame_mode_info(AV1_COMMON *const cm, |
770 | 0 | DecoderCodingBlock *dcb, aom_reader *r) { |
771 | 0 | MACROBLOCKD *const xd = &dcb->xd; |
772 | 0 | MB_MODE_INFO *const mbmi = xd->mi[0]; |
773 | 0 | const MB_MODE_INFO *above_mi = xd->above_mbmi; |
774 | 0 | const MB_MODE_INFO *left_mi = xd->left_mbmi; |
775 | 0 | const BLOCK_SIZE bsize = mbmi->bsize; |
776 | 0 | struct segmentation *const seg = &cm->seg; |
777 | |
|
778 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
779 | |
|
780 | 0 | if (seg->segid_preskip) |
781 | 0 | mbmi->segment_id = read_intra_segment_id(cm, xd, bsize, r, 0); |
782 | |
|
783 | 0 | mbmi->skip_txfm = read_skip_txfm(cm, xd, mbmi->segment_id, r); |
784 | |
|
785 | 0 | if (!seg->segid_preskip) |
786 | 0 | mbmi->segment_id = read_intra_segment_id(cm, xd, bsize, r, mbmi->skip_txfm); |
787 | |
|
788 | 0 | read_cdef(cm, r, xd); |
789 | |
|
790 | 0 | read_delta_q_params(cm, xd, r); |
791 | |
|
792 | 0 | mbmi->current_qindex = xd->current_base_qindex; |
793 | |
|
794 | 0 | mbmi->ref_frame[0] = INTRA_FRAME; |
795 | 0 | mbmi->ref_frame[1] = NONE_FRAME; |
796 | 0 | mbmi->palette_mode_info.palette_size[0] = 0; |
797 | 0 | mbmi->palette_mode_info.palette_size[1] = 0; |
798 | 0 | mbmi->filter_intra_mode_info.use_filter_intra = 0; |
799 | |
|
800 | 0 | const int mi_row = xd->mi_row; |
801 | 0 | const int mi_col = xd->mi_col; |
802 | 0 | xd->above_txfm_context = cm->above_contexts.txfm[xd->tile.tile_row] + mi_col; |
803 | 0 | xd->left_txfm_context = |
804 | 0 | xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK); |
805 | |
|
806 | 0 | if (av1_allow_intrabc(cm)) { |
807 | 0 | read_intrabc_info(cm, dcb, r); |
808 | 0 | if (is_intrabc_block(mbmi)) return; |
809 | 0 | } |
810 | | |
811 | 0 | mbmi->mode = read_intra_mode(r, get_y_mode_cdf(ec_ctx, above_mi, left_mi)); |
812 | |
|
813 | 0 | const int use_angle_delta = av1_use_angle_delta(bsize); |
814 | 0 | mbmi->angle_delta[PLANE_TYPE_Y] = |
815 | 0 | (use_angle_delta && av1_is_directional_mode(mbmi->mode)) |
816 | 0 | ? read_angle_delta(r, ec_ctx->angle_delta_cdf[mbmi->mode - V_PRED]) |
817 | 0 | : 0; |
818 | |
|
819 | 0 | if (!cm->seq_params->monochrome && xd->is_chroma_ref) { |
820 | 0 | mbmi->uv_mode = |
821 | 0 | read_intra_mode_uv(ec_ctx, r, is_cfl_allowed(xd), mbmi->mode); |
822 | 0 | if (mbmi->uv_mode == UV_CFL_PRED) { |
823 | 0 | mbmi->cfl_alpha_idx = read_cfl_alphas(ec_ctx, r, &mbmi->cfl_alpha_signs); |
824 | 0 | } |
825 | 0 | mbmi->angle_delta[PLANE_TYPE_UV] = |
826 | 0 | (use_angle_delta && av1_is_directional_mode(get_uv_mode(mbmi->uv_mode))) |
827 | 0 | ? read_angle_delta(r, |
828 | 0 | ec_ctx->angle_delta_cdf[mbmi->uv_mode - V_PRED]) |
829 | 0 | : 0; |
830 | 0 | } else { |
831 | | // Avoid decoding angle_info if there is is no chroma prediction |
832 | 0 | mbmi->uv_mode = UV_DC_PRED; |
833 | 0 | } |
834 | 0 | xd->cfl.store_y = store_cfl_required(cm, xd); |
835 | |
|
836 | 0 | if (av1_allow_palette(cm->features.allow_screen_content_tools, bsize)) |
837 | 0 | read_palette_mode_info(cm, xd, r); |
838 | |
|
839 | 0 | read_filter_intra_mode_info(cm, xd, r); |
840 | 0 | } |
841 | | |
842 | | static int read_mv_component(aom_reader *r, nmv_component *mvcomp, |
843 | 0 | int use_subpel, int usehp) { |
844 | 0 | int mag, d, fr, hp; |
845 | 0 | const int sign = aom_read_symbol(r, mvcomp->sign_cdf, 2, ACCT_STR); |
846 | 0 | const int mv_class = |
847 | 0 | aom_read_symbol(r, mvcomp->classes_cdf, MV_CLASSES, ACCT_STR); |
848 | 0 | const int class0 = mv_class == MV_CLASS_0; |
849 | | |
850 | | // Integer part |
851 | 0 | if (class0) { |
852 | 0 | d = aom_read_symbol(r, mvcomp->class0_cdf, CLASS0_SIZE, ACCT_STR); |
853 | 0 | mag = 0; |
854 | 0 | } else { |
855 | 0 | const int n = mv_class + CLASS0_BITS - 1; // number of bits |
856 | 0 | d = 0; |
857 | 0 | for (int i = 0; i < n; ++i) |
858 | 0 | d |= aom_read_symbol(r, mvcomp->bits_cdf[i], 2, ACCT_STR) << i; |
859 | 0 | mag = CLASS0_SIZE << (mv_class + 2); |
860 | 0 | } |
861 | |
|
862 | 0 | if (use_subpel) { |
863 | | // Fractional part |
864 | 0 | fr = aom_read_symbol(r, class0 ? mvcomp->class0_fp_cdf[d] : mvcomp->fp_cdf, |
865 | 0 | MV_FP_SIZE, ACCT_STR); |
866 | | |
867 | | // High precision part (if hp is not used, the default value of the hp is 1) |
868 | 0 | hp = usehp ? aom_read_symbol( |
869 | 0 | r, class0 ? mvcomp->class0_hp_cdf : mvcomp->hp_cdf, 2, |
870 | 0 | ACCT_STR) |
871 | 0 | : 1; |
872 | 0 | } else { |
873 | 0 | fr = 3; |
874 | 0 | hp = 1; |
875 | 0 | } |
876 | | |
877 | | // Result |
878 | 0 | mag += ((d << 3) | (fr << 1) | hp) + 1; |
879 | 0 | return sign ? -mag : mag; |
880 | 0 | } |
881 | | |
882 | | static INLINE void read_mv(aom_reader *r, MV *mv, const MV *ref, |
883 | 0 | nmv_context *ctx, MvSubpelPrecision precision) { |
884 | 0 | MV diff = kZeroMv; |
885 | 0 | const MV_JOINT_TYPE joint_type = |
886 | 0 | (MV_JOINT_TYPE)aom_read_symbol(r, ctx->joints_cdf, MV_JOINTS, ACCT_STR); |
887 | |
|
888 | 0 | if (mv_joint_vertical(joint_type)) |
889 | 0 | diff.row = read_mv_component(r, &ctx->comps[0], precision > MV_SUBPEL_NONE, |
890 | 0 | precision > MV_SUBPEL_LOW_PRECISION); |
891 | |
|
892 | 0 | if (mv_joint_horizontal(joint_type)) |
893 | 0 | diff.col = read_mv_component(r, &ctx->comps[1], precision > MV_SUBPEL_NONE, |
894 | 0 | precision > MV_SUBPEL_LOW_PRECISION); |
895 | |
|
896 | 0 | mv->row = ref->row + diff.row; |
897 | 0 | mv->col = ref->col + diff.col; |
898 | 0 | } |
899 | | |
900 | | static REFERENCE_MODE read_block_reference_mode(AV1_COMMON *cm, |
901 | | const MACROBLOCKD *xd, |
902 | 0 | aom_reader *r) { |
903 | 0 | if (!is_comp_ref_allowed(xd->mi[0]->bsize)) return SINGLE_REFERENCE; |
904 | 0 | if (cm->current_frame.reference_mode == REFERENCE_MODE_SELECT) { |
905 | 0 | const int ctx = av1_get_reference_mode_context(xd); |
906 | 0 | const REFERENCE_MODE mode = (REFERENCE_MODE)aom_read_symbol( |
907 | 0 | r, xd->tile_ctx->comp_inter_cdf[ctx], 2, ACCT_STR); |
908 | 0 | return mode; // SINGLE_REFERENCE or COMPOUND_REFERENCE |
909 | 0 | } else { |
910 | 0 | assert(cm->current_frame.reference_mode == SINGLE_REFERENCE); |
911 | 0 | return cm->current_frame.reference_mode; |
912 | 0 | } |
913 | 0 | } |
914 | | |
915 | | #define READ_REF_BIT(pname) \ |
916 | 0 | aom_read_symbol(r, av1_get_pred_cdf_##pname(xd), 2, ACCT_STR) |
917 | | |
918 | | static COMP_REFERENCE_TYPE read_comp_reference_type(const MACROBLOCKD *xd, |
919 | 0 | aom_reader *r) { |
920 | 0 | const int ctx = av1_get_comp_reference_type_context(xd); |
921 | 0 | const COMP_REFERENCE_TYPE comp_ref_type = |
922 | 0 | (COMP_REFERENCE_TYPE)aom_read_symbol( |
923 | 0 | r, xd->tile_ctx->comp_ref_type_cdf[ctx], 2, ACCT_STR); |
924 | 0 | return comp_ref_type; // UNIDIR_COMP_REFERENCE or BIDIR_COMP_REFERENCE |
925 | 0 | } |
926 | | |
927 | | static void set_ref_frames_for_skip_mode(AV1_COMMON *const cm, |
928 | 0 | MV_REFERENCE_FRAME ref_frame[2]) { |
929 | 0 | ref_frame[0] = LAST_FRAME + cm->current_frame.skip_mode_info.ref_frame_idx_0; |
930 | 0 | ref_frame[1] = LAST_FRAME + cm->current_frame.skip_mode_info.ref_frame_idx_1; |
931 | 0 | } |
932 | | |
933 | | // Read the referncence frame |
934 | | static void read_ref_frames(AV1_COMMON *const cm, MACROBLOCKD *const xd, |
935 | | aom_reader *r, int segment_id, |
936 | 0 | MV_REFERENCE_FRAME ref_frame[2]) { |
937 | 0 | if (xd->mi[0]->skip_mode) { |
938 | 0 | set_ref_frames_for_skip_mode(cm, ref_frame); |
939 | 0 | return; |
940 | 0 | } |
941 | | |
942 | 0 | if (segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) { |
943 | 0 | ref_frame[0] = (MV_REFERENCE_FRAME)get_segdata(&cm->seg, segment_id, |
944 | 0 | SEG_LVL_REF_FRAME); |
945 | 0 | ref_frame[1] = NONE_FRAME; |
946 | 0 | } else if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP) || |
947 | 0 | segfeature_active(&cm->seg, segment_id, SEG_LVL_GLOBALMV)) { |
948 | 0 | ref_frame[0] = LAST_FRAME; |
949 | 0 | ref_frame[1] = NONE_FRAME; |
950 | 0 | } else { |
951 | 0 | const REFERENCE_MODE mode = read_block_reference_mode(cm, xd, r); |
952 | |
|
953 | 0 | if (mode == COMPOUND_REFERENCE) { |
954 | 0 | const COMP_REFERENCE_TYPE comp_ref_type = read_comp_reference_type(xd, r); |
955 | |
|
956 | 0 | if (comp_ref_type == UNIDIR_COMP_REFERENCE) { |
957 | 0 | const int bit = READ_REF_BIT(uni_comp_ref_p); |
958 | 0 | if (bit) { |
959 | 0 | ref_frame[0] = BWDREF_FRAME; |
960 | 0 | ref_frame[1] = ALTREF_FRAME; |
961 | 0 | } else { |
962 | 0 | const int bit1 = READ_REF_BIT(uni_comp_ref_p1); |
963 | 0 | if (bit1) { |
964 | 0 | const int bit2 = READ_REF_BIT(uni_comp_ref_p2); |
965 | 0 | if (bit2) { |
966 | 0 | ref_frame[0] = LAST_FRAME; |
967 | 0 | ref_frame[1] = GOLDEN_FRAME; |
968 | 0 | } else { |
969 | 0 | ref_frame[0] = LAST_FRAME; |
970 | 0 | ref_frame[1] = LAST3_FRAME; |
971 | 0 | } |
972 | 0 | } else { |
973 | 0 | ref_frame[0] = LAST_FRAME; |
974 | 0 | ref_frame[1] = LAST2_FRAME; |
975 | 0 | } |
976 | 0 | } |
977 | |
|
978 | 0 | return; |
979 | 0 | } |
980 | | |
981 | 0 | assert(comp_ref_type == BIDIR_COMP_REFERENCE); |
982 | |
|
983 | 0 | const int idx = 1; |
984 | 0 | const int bit = READ_REF_BIT(comp_ref_p); |
985 | | // Decode forward references. |
986 | 0 | if (!bit) { |
987 | 0 | const int bit1 = READ_REF_BIT(comp_ref_p1); |
988 | 0 | ref_frame[!idx] = bit1 ? LAST2_FRAME : LAST_FRAME; |
989 | 0 | } else { |
990 | 0 | const int bit2 = READ_REF_BIT(comp_ref_p2); |
991 | 0 | ref_frame[!idx] = bit2 ? GOLDEN_FRAME : LAST3_FRAME; |
992 | 0 | } |
993 | | |
994 | | // Decode backward references. |
995 | 0 | const int bit_bwd = READ_REF_BIT(comp_bwdref_p); |
996 | 0 | if (!bit_bwd) { |
997 | 0 | const int bit1_bwd = READ_REF_BIT(comp_bwdref_p1); |
998 | 0 | ref_frame[idx] = bit1_bwd ? ALTREF2_FRAME : BWDREF_FRAME; |
999 | 0 | } else { |
1000 | 0 | ref_frame[idx] = ALTREF_FRAME; |
1001 | 0 | } |
1002 | 0 | } else if (mode == SINGLE_REFERENCE) { |
1003 | 0 | const int bit0 = READ_REF_BIT(single_ref_p1); |
1004 | 0 | if (bit0) { |
1005 | 0 | const int bit1 = READ_REF_BIT(single_ref_p2); |
1006 | 0 | if (!bit1) { |
1007 | 0 | const int bit5 = READ_REF_BIT(single_ref_p6); |
1008 | 0 | ref_frame[0] = bit5 ? ALTREF2_FRAME : BWDREF_FRAME; |
1009 | 0 | } else { |
1010 | 0 | ref_frame[0] = ALTREF_FRAME; |
1011 | 0 | } |
1012 | 0 | } else { |
1013 | 0 | const int bit2 = READ_REF_BIT(single_ref_p3); |
1014 | 0 | if (bit2) { |
1015 | 0 | const int bit4 = READ_REF_BIT(single_ref_p5); |
1016 | 0 | ref_frame[0] = bit4 ? GOLDEN_FRAME : LAST3_FRAME; |
1017 | 0 | } else { |
1018 | 0 | const int bit3 = READ_REF_BIT(single_ref_p4); |
1019 | 0 | ref_frame[0] = bit3 ? LAST2_FRAME : LAST_FRAME; |
1020 | 0 | } |
1021 | 0 | } |
1022 | |
|
1023 | 0 | ref_frame[1] = NONE_FRAME; |
1024 | 0 | } else { |
1025 | 0 | assert(0 && "Invalid prediction mode."); |
1026 | 0 | } |
1027 | 0 | } |
1028 | 0 | } |
1029 | | |
1030 | | static INLINE void read_mb_interp_filter(const MACROBLOCKD *const xd, |
1031 | | InterpFilter interp_filter, |
1032 | | bool enable_dual_filter, |
1033 | | MB_MODE_INFO *const mbmi, |
1034 | 0 | aom_reader *r) { |
1035 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
1036 | |
|
1037 | 0 | if (!av1_is_interp_needed(xd)) { |
1038 | 0 | set_default_interp_filters(mbmi, interp_filter); |
1039 | 0 | return; |
1040 | 0 | } |
1041 | | |
1042 | 0 | if (interp_filter != SWITCHABLE) { |
1043 | 0 | mbmi->interp_filters = av1_broadcast_interp_filter(interp_filter); |
1044 | 0 | } else { |
1045 | 0 | InterpFilter ref0_filter[2] = { EIGHTTAP_REGULAR, EIGHTTAP_REGULAR }; |
1046 | 0 | for (int dir = 0; dir < 2; ++dir) { |
1047 | 0 | const int ctx = av1_get_pred_context_switchable_interp(xd, dir); |
1048 | 0 | ref0_filter[dir] = (InterpFilter)aom_read_symbol( |
1049 | 0 | r, ec_ctx->switchable_interp_cdf[ctx], SWITCHABLE_FILTERS, ACCT_STR); |
1050 | 0 | if (!enable_dual_filter) { |
1051 | 0 | ref0_filter[1] = ref0_filter[0]; |
1052 | 0 | break; |
1053 | 0 | } |
1054 | 0 | } |
1055 | | // The index system works as: (0, 1) -> (vertical, horizontal) filter types |
1056 | 0 | mbmi->interp_filters.as_filters.x_filter = ref0_filter[1]; |
1057 | 0 | mbmi->interp_filters.as_filters.y_filter = ref0_filter[0]; |
1058 | 0 | } |
1059 | 0 | } |
1060 | | |
1061 | | static void read_intra_block_mode_info(AV1_COMMON *const cm, |
1062 | | MACROBLOCKD *const xd, |
1063 | | MB_MODE_INFO *const mbmi, |
1064 | 0 | aom_reader *r) { |
1065 | 0 | const BLOCK_SIZE bsize = mbmi->bsize; |
1066 | 0 | const int use_angle_delta = av1_use_angle_delta(bsize); |
1067 | |
|
1068 | 0 | mbmi->ref_frame[0] = INTRA_FRAME; |
1069 | 0 | mbmi->ref_frame[1] = NONE_FRAME; |
1070 | |
|
1071 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
1072 | |
|
1073 | 0 | mbmi->mode = read_intra_mode(r, ec_ctx->y_mode_cdf[size_group_lookup[bsize]]); |
1074 | |
|
1075 | 0 | mbmi->angle_delta[PLANE_TYPE_Y] = |
1076 | 0 | use_angle_delta && av1_is_directional_mode(mbmi->mode) |
1077 | 0 | ? read_angle_delta(r, ec_ctx->angle_delta_cdf[mbmi->mode - V_PRED]) |
1078 | 0 | : 0; |
1079 | 0 | if (!cm->seq_params->monochrome && xd->is_chroma_ref) { |
1080 | 0 | mbmi->uv_mode = |
1081 | 0 | read_intra_mode_uv(ec_ctx, r, is_cfl_allowed(xd), mbmi->mode); |
1082 | 0 | if (mbmi->uv_mode == UV_CFL_PRED) { |
1083 | 0 | mbmi->cfl_alpha_idx = |
1084 | 0 | read_cfl_alphas(xd->tile_ctx, r, &mbmi->cfl_alpha_signs); |
1085 | 0 | } |
1086 | 0 | mbmi->angle_delta[PLANE_TYPE_UV] = |
1087 | 0 | use_angle_delta && av1_is_directional_mode(get_uv_mode(mbmi->uv_mode)) |
1088 | 0 | ? read_angle_delta(r, |
1089 | 0 | ec_ctx->angle_delta_cdf[mbmi->uv_mode - V_PRED]) |
1090 | 0 | : 0; |
1091 | 0 | } else { |
1092 | | // Avoid decoding angle_info if there is is no chroma prediction |
1093 | 0 | mbmi->uv_mode = UV_DC_PRED; |
1094 | 0 | } |
1095 | 0 | xd->cfl.store_y = store_cfl_required(cm, xd); |
1096 | |
|
1097 | 0 | mbmi->palette_mode_info.palette_size[0] = 0; |
1098 | 0 | mbmi->palette_mode_info.palette_size[1] = 0; |
1099 | 0 | if (av1_allow_palette(cm->features.allow_screen_content_tools, bsize)) |
1100 | 0 | read_palette_mode_info(cm, xd, r); |
1101 | |
|
1102 | 0 | read_filter_intra_mode_info(cm, xd, r); |
1103 | 0 | } |
1104 | | |
1105 | 0 | static INLINE int is_mv_valid(const MV *mv) { |
1106 | 0 | return mv->row > MV_LOW && mv->row < MV_UPP && mv->col > MV_LOW && |
1107 | 0 | mv->col < MV_UPP; |
1108 | 0 | } |
1109 | | |
1110 | | static INLINE int assign_mv(AV1_COMMON *cm, MACROBLOCKD *xd, |
1111 | | PREDICTION_MODE mode, |
1112 | | MV_REFERENCE_FRAME ref_frame[2], int_mv mv[2], |
1113 | | int_mv ref_mv[2], int_mv nearest_mv[2], |
1114 | | int_mv near_mv[2], int is_compound, int allow_hp, |
1115 | 0 | aom_reader *r) { |
1116 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
1117 | 0 | MB_MODE_INFO *mbmi = xd->mi[0]; |
1118 | 0 | BLOCK_SIZE bsize = mbmi->bsize; |
1119 | 0 | FeatureFlags *const features = &cm->features; |
1120 | 0 | if (features->cur_frame_force_integer_mv) { |
1121 | 0 | allow_hp = MV_SUBPEL_NONE; |
1122 | 0 | } |
1123 | 0 | switch (mode) { |
1124 | 0 | case NEWMV: { |
1125 | 0 | nmv_context *const nmvc = &ec_ctx->nmvc; |
1126 | 0 | read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, nmvc, allow_hp); |
1127 | 0 | break; |
1128 | 0 | } |
1129 | 0 | case NEARESTMV: { |
1130 | 0 | mv[0].as_int = nearest_mv[0].as_int; |
1131 | 0 | break; |
1132 | 0 | } |
1133 | 0 | case NEARMV: { |
1134 | 0 | mv[0].as_int = near_mv[0].as_int; |
1135 | 0 | break; |
1136 | 0 | } |
1137 | 0 | case GLOBALMV: { |
1138 | 0 | mv[0].as_int = gm_get_motion_vector(&cm->global_motion[ref_frame[0]], |
1139 | 0 | features->allow_high_precision_mv, |
1140 | 0 | bsize, xd->mi_col, xd->mi_row, |
1141 | 0 | features->cur_frame_force_integer_mv) |
1142 | 0 | .as_int; |
1143 | 0 | break; |
1144 | 0 | } |
1145 | 0 | case NEW_NEWMV: { |
1146 | 0 | assert(is_compound); |
1147 | 0 | for (int i = 0; i < 2; ++i) { |
1148 | 0 | nmv_context *const nmvc = &ec_ctx->nmvc; |
1149 | 0 | read_mv(r, &mv[i].as_mv, &ref_mv[i].as_mv, nmvc, allow_hp); |
1150 | 0 | } |
1151 | 0 | break; |
1152 | 0 | } |
1153 | 0 | case NEAREST_NEARESTMV: { |
1154 | 0 | assert(is_compound); |
1155 | 0 | mv[0].as_int = nearest_mv[0].as_int; |
1156 | 0 | mv[1].as_int = nearest_mv[1].as_int; |
1157 | 0 | break; |
1158 | 0 | } |
1159 | 0 | case NEAR_NEARMV: { |
1160 | 0 | assert(is_compound); |
1161 | 0 | mv[0].as_int = near_mv[0].as_int; |
1162 | 0 | mv[1].as_int = near_mv[1].as_int; |
1163 | 0 | break; |
1164 | 0 | } |
1165 | 0 | case NEW_NEARESTMV: { |
1166 | 0 | nmv_context *const nmvc = &ec_ctx->nmvc; |
1167 | 0 | read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, nmvc, allow_hp); |
1168 | 0 | assert(is_compound); |
1169 | 0 | mv[1].as_int = nearest_mv[1].as_int; |
1170 | 0 | break; |
1171 | 0 | } |
1172 | 0 | case NEAREST_NEWMV: { |
1173 | 0 | nmv_context *const nmvc = &ec_ctx->nmvc; |
1174 | 0 | mv[0].as_int = nearest_mv[0].as_int; |
1175 | 0 | read_mv(r, &mv[1].as_mv, &ref_mv[1].as_mv, nmvc, allow_hp); |
1176 | 0 | assert(is_compound); |
1177 | 0 | break; |
1178 | 0 | } |
1179 | 0 | case NEAR_NEWMV: { |
1180 | 0 | nmv_context *const nmvc = &ec_ctx->nmvc; |
1181 | 0 | mv[0].as_int = near_mv[0].as_int; |
1182 | 0 | read_mv(r, &mv[1].as_mv, &ref_mv[1].as_mv, nmvc, allow_hp); |
1183 | 0 | assert(is_compound); |
1184 | 0 | break; |
1185 | 0 | } |
1186 | 0 | case NEW_NEARMV: { |
1187 | 0 | nmv_context *const nmvc = &ec_ctx->nmvc; |
1188 | 0 | read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, nmvc, allow_hp); |
1189 | 0 | assert(is_compound); |
1190 | 0 | mv[1].as_int = near_mv[1].as_int; |
1191 | 0 | break; |
1192 | 0 | } |
1193 | 0 | case GLOBAL_GLOBALMV: { |
1194 | 0 | assert(is_compound); |
1195 | 0 | mv[0].as_int = gm_get_motion_vector(&cm->global_motion[ref_frame[0]], |
1196 | 0 | features->allow_high_precision_mv, |
1197 | 0 | bsize, xd->mi_col, xd->mi_row, |
1198 | 0 | features->cur_frame_force_integer_mv) |
1199 | 0 | .as_int; |
1200 | 0 | mv[1].as_int = gm_get_motion_vector(&cm->global_motion[ref_frame[1]], |
1201 | 0 | features->allow_high_precision_mv, |
1202 | 0 | bsize, xd->mi_col, xd->mi_row, |
1203 | 0 | features->cur_frame_force_integer_mv) |
1204 | 0 | .as_int; |
1205 | 0 | break; |
1206 | 0 | } |
1207 | 0 | default: { return 0; } |
1208 | 0 | } |
1209 | | |
1210 | 0 | int ret = is_mv_valid(&mv[0].as_mv); |
1211 | 0 | if (is_compound) { |
1212 | 0 | ret = ret && is_mv_valid(&mv[1].as_mv); |
1213 | 0 | } |
1214 | 0 | return ret; |
1215 | 0 | } |
1216 | | |
1217 | | static int read_is_inter_block(AV1_COMMON *const cm, MACROBLOCKD *const xd, |
1218 | 0 | int segment_id, aom_reader *r) { |
1219 | 0 | if (segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) { |
1220 | 0 | const int frame = get_segdata(&cm->seg, segment_id, SEG_LVL_REF_FRAME); |
1221 | 0 | if (frame < LAST_FRAME) return 0; |
1222 | 0 | return frame != INTRA_FRAME; |
1223 | 0 | } |
1224 | 0 | if (segfeature_active(&cm->seg, segment_id, SEG_LVL_GLOBALMV)) { |
1225 | 0 | return 1; |
1226 | 0 | } |
1227 | 0 | const int ctx = av1_get_intra_inter_context(xd); |
1228 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
1229 | 0 | const int is_inter = |
1230 | 0 | aom_read_symbol(r, ec_ctx->intra_inter_cdf[ctx], 2, ACCT_STR); |
1231 | 0 | return is_inter; |
1232 | 0 | } |
1233 | | |
1234 | | #if DEC_MISMATCH_DEBUG |
1235 | | static void dec_dump_logs(AV1_COMMON *cm, MB_MODE_INFO *const mbmi, int mi_row, |
1236 | | int mi_col, int16_t mode_ctx) { |
1237 | | int_mv mv[2] = { { 0 } }; |
1238 | | for (int ref = 0; ref < 1 + has_second_ref(mbmi); ++ref) |
1239 | | mv[ref].as_mv = mbmi->mv[ref].as_mv; |
1240 | | |
1241 | | const int16_t newmv_ctx = mode_ctx & NEWMV_CTX_MASK; |
1242 | | int16_t zeromv_ctx = -1; |
1243 | | int16_t refmv_ctx = -1; |
1244 | | if (mbmi->mode != NEWMV) { |
1245 | | zeromv_ctx = (mode_ctx >> GLOBALMV_OFFSET) & GLOBALMV_CTX_MASK; |
1246 | | if (mbmi->mode != GLOBALMV) |
1247 | | refmv_ctx = (mode_ctx >> REFMV_OFFSET) & REFMV_CTX_MASK; |
1248 | | } |
1249 | | |
1250 | | #define FRAME_TO_CHECK 11 |
1251 | | if (cm->current_frame.frame_number == FRAME_TO_CHECK && cm->show_frame == 1) { |
1252 | | printf( |
1253 | | "=== DECODER ===: " |
1254 | | "Frame=%d, (mi_row,mi_col)=(%d,%d), skip_mode=%d, mode=%d, bsize=%d, " |
1255 | | "show_frame=%d, mv[0]=(%d,%d), mv[1]=(%d,%d), ref[0]=%d, " |
1256 | | "ref[1]=%d, motion_mode=%d, mode_ctx=%d, " |
1257 | | "newmv_ctx=%d, zeromv_ctx=%d, refmv_ctx=%d, tx_size=%d\n", |
1258 | | cm->current_frame.frame_number, mi_row, mi_col, mbmi->skip_mode, |
1259 | | mbmi->mode, mbmi->sb_type, cm->show_frame, mv[0].as_mv.row, |
1260 | | mv[0].as_mv.col, mv[1].as_mv.row, mv[1].as_mv.col, mbmi->ref_frame[0], |
1261 | | mbmi->ref_frame[1], mbmi->motion_mode, mode_ctx, newmv_ctx, zeromv_ctx, |
1262 | | refmv_ctx, mbmi->tx_size); |
1263 | | } |
1264 | | } |
1265 | | #endif // DEC_MISMATCH_DEBUG |
1266 | | |
1267 | | static void read_inter_block_mode_info(AV1Decoder *const pbi, |
1268 | | DecoderCodingBlock *dcb, |
1269 | | MB_MODE_INFO *const mbmi, |
1270 | 0 | aom_reader *r) { |
1271 | 0 | AV1_COMMON *const cm = &pbi->common; |
1272 | 0 | FeatureFlags *const features = &cm->features; |
1273 | 0 | const BLOCK_SIZE bsize = mbmi->bsize; |
1274 | 0 | const int allow_hp = features->allow_high_precision_mv; |
1275 | 0 | int_mv nearestmv[2], nearmv[2]; |
1276 | 0 | int_mv ref_mvs[MODE_CTX_REF_FRAMES][MAX_MV_REF_CANDIDATES] = { { { 0 } } }; |
1277 | 0 | int16_t inter_mode_ctx[MODE_CTX_REF_FRAMES]; |
1278 | 0 | int pts[SAMPLES_ARRAY_SIZE], pts_inref[SAMPLES_ARRAY_SIZE]; |
1279 | 0 | MACROBLOCKD *const xd = &dcb->xd; |
1280 | 0 | FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
1281 | |
|
1282 | 0 | mbmi->uv_mode = UV_DC_PRED; |
1283 | 0 | mbmi->palette_mode_info.palette_size[0] = 0; |
1284 | 0 | mbmi->palette_mode_info.palette_size[1] = 0; |
1285 | |
|
1286 | 0 | av1_collect_neighbors_ref_counts(xd); |
1287 | |
|
1288 | 0 | read_ref_frames(cm, xd, r, mbmi->segment_id, mbmi->ref_frame); |
1289 | 0 | const int is_compound = has_second_ref(mbmi); |
1290 | |
|
1291 | 0 | const MV_REFERENCE_FRAME ref_frame = av1_ref_frame_type(mbmi->ref_frame); |
1292 | 0 | av1_find_mv_refs(cm, xd, mbmi, ref_frame, dcb->ref_mv_count, xd->ref_mv_stack, |
1293 | 0 | xd->weight, ref_mvs, /*global_mvs=*/NULL, inter_mode_ctx); |
1294 | |
|
1295 | 0 | mbmi->ref_mv_idx = 0; |
1296 | |
|
1297 | 0 | if (mbmi->skip_mode) { |
1298 | 0 | assert(is_compound); |
1299 | 0 | mbmi->mode = NEAREST_NEARESTMV; |
1300 | 0 | } else { |
1301 | 0 | if (segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP) || |
1302 | 0 | segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_GLOBALMV)) { |
1303 | 0 | mbmi->mode = GLOBALMV; |
1304 | 0 | } else { |
1305 | 0 | const int mode_ctx = |
1306 | 0 | av1_mode_context_analyzer(inter_mode_ctx, mbmi->ref_frame); |
1307 | 0 | if (is_compound) |
1308 | 0 | mbmi->mode = read_inter_compound_mode(xd, r, mode_ctx); |
1309 | 0 | else |
1310 | 0 | mbmi->mode = read_inter_mode(ec_ctx, r, mode_ctx); |
1311 | 0 | if (mbmi->mode == NEWMV || mbmi->mode == NEW_NEWMV || |
1312 | 0 | have_nearmv_in_inter_mode(mbmi->mode)) |
1313 | 0 | read_drl_idx(ec_ctx, dcb, mbmi, r); |
1314 | 0 | } |
1315 | 0 | } |
1316 | |
|
1317 | 0 | if (is_compound != is_inter_compound_mode(mbmi->mode)) { |
1318 | 0 | aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME, |
1319 | 0 | "Prediction mode %d invalid with ref frame %d %d", |
1320 | 0 | mbmi->mode, mbmi->ref_frame[0], mbmi->ref_frame[1]); |
1321 | 0 | } |
1322 | |
|
1323 | 0 | if (!is_compound && mbmi->mode != GLOBALMV) { |
1324 | 0 | av1_find_best_ref_mvs(allow_hp, ref_mvs[mbmi->ref_frame[0]], &nearestmv[0], |
1325 | 0 | &nearmv[0], features->cur_frame_force_integer_mv); |
1326 | 0 | } |
1327 | |
|
1328 | 0 | if (is_compound && mbmi->mode != GLOBAL_GLOBALMV) { |
1329 | 0 | const int ref_mv_idx = mbmi->ref_mv_idx + 1; |
1330 | 0 | nearestmv[0] = xd->ref_mv_stack[ref_frame][0].this_mv; |
1331 | 0 | nearestmv[1] = xd->ref_mv_stack[ref_frame][0].comp_mv; |
1332 | 0 | nearmv[0] = xd->ref_mv_stack[ref_frame][ref_mv_idx].this_mv; |
1333 | 0 | nearmv[1] = xd->ref_mv_stack[ref_frame][ref_mv_idx].comp_mv; |
1334 | 0 | lower_mv_precision(&nearestmv[0].as_mv, allow_hp, |
1335 | 0 | features->cur_frame_force_integer_mv); |
1336 | 0 | lower_mv_precision(&nearestmv[1].as_mv, allow_hp, |
1337 | 0 | features->cur_frame_force_integer_mv); |
1338 | 0 | lower_mv_precision(&nearmv[0].as_mv, allow_hp, |
1339 | 0 | features->cur_frame_force_integer_mv); |
1340 | 0 | lower_mv_precision(&nearmv[1].as_mv, allow_hp, |
1341 | 0 | features->cur_frame_force_integer_mv); |
1342 | 0 | } else if (mbmi->ref_mv_idx > 0 && mbmi->mode == NEARMV) { |
1343 | 0 | nearmv[0] = |
1344 | 0 | xd->ref_mv_stack[mbmi->ref_frame[0]][1 + mbmi->ref_mv_idx].this_mv; |
1345 | 0 | } |
1346 | |
|
1347 | 0 | int_mv ref_mv[2] = { nearestmv[0], nearestmv[1] }; |
1348 | |
|
1349 | 0 | if (is_compound) { |
1350 | 0 | int ref_mv_idx = mbmi->ref_mv_idx; |
1351 | | // Special case: NEAR_NEWMV and NEW_NEARMV modes use |
1352 | | // 1 + mbmi->ref_mv_idx (like NEARMV) instead of |
1353 | | // mbmi->ref_mv_idx (like NEWMV) |
1354 | 0 | if (mbmi->mode == NEAR_NEWMV || mbmi->mode == NEW_NEARMV) |
1355 | 0 | ref_mv_idx = 1 + mbmi->ref_mv_idx; |
1356 | | |
1357 | | // TODO(jingning, yunqing): Do we need a lower_mv_precision() call here? |
1358 | 0 | if (compound_ref0_mode(mbmi->mode) == NEWMV) |
1359 | 0 | ref_mv[0] = xd->ref_mv_stack[ref_frame][ref_mv_idx].this_mv; |
1360 | |
|
1361 | 0 | if (compound_ref1_mode(mbmi->mode) == NEWMV) |
1362 | 0 | ref_mv[1] = xd->ref_mv_stack[ref_frame][ref_mv_idx].comp_mv; |
1363 | 0 | } else { |
1364 | 0 | if (mbmi->mode == NEWMV) { |
1365 | 0 | if (dcb->ref_mv_count[ref_frame] > 1) |
1366 | 0 | ref_mv[0] = xd->ref_mv_stack[ref_frame][mbmi->ref_mv_idx].this_mv; |
1367 | 0 | } |
1368 | 0 | } |
1369 | |
|
1370 | 0 | if (mbmi->skip_mode) assert(mbmi->mode == NEAREST_NEARESTMV); |
1371 | |
|
1372 | 0 | const int mv_corrupted_flag = |
1373 | 0 | !assign_mv(cm, xd, mbmi->mode, mbmi->ref_frame, mbmi->mv, ref_mv, |
1374 | 0 | nearestmv, nearmv, is_compound, allow_hp, r); |
1375 | 0 | aom_merge_corrupted_flag(&dcb->corrupted, mv_corrupted_flag); |
1376 | |
|
1377 | 0 | mbmi->use_wedge_interintra = 0; |
1378 | 0 | if (cm->seq_params->enable_interintra_compound && !mbmi->skip_mode && |
1379 | 0 | is_interintra_allowed(mbmi)) { |
1380 | 0 | const int bsize_group = size_group_lookup[bsize]; |
1381 | 0 | const int interintra = |
1382 | 0 | aom_read_symbol(r, ec_ctx->interintra_cdf[bsize_group], 2, ACCT_STR); |
1383 | 0 | assert(mbmi->ref_frame[1] == NONE_FRAME); |
1384 | 0 | if (interintra) { |
1385 | 0 | const INTERINTRA_MODE interintra_mode = |
1386 | 0 | read_interintra_mode(xd, r, bsize_group); |
1387 | 0 | mbmi->ref_frame[1] = INTRA_FRAME; |
1388 | 0 | mbmi->interintra_mode = interintra_mode; |
1389 | 0 | mbmi->angle_delta[PLANE_TYPE_Y] = 0; |
1390 | 0 | mbmi->angle_delta[PLANE_TYPE_UV] = 0; |
1391 | 0 | mbmi->filter_intra_mode_info.use_filter_intra = 0; |
1392 | 0 | if (av1_is_wedge_used(bsize)) { |
1393 | 0 | mbmi->use_wedge_interintra = aom_read_symbol( |
1394 | 0 | r, ec_ctx->wedge_interintra_cdf[bsize], 2, ACCT_STR); |
1395 | 0 | if (mbmi->use_wedge_interintra) { |
1396 | 0 | mbmi->interintra_wedge_index = (int8_t)aom_read_symbol( |
1397 | 0 | r, ec_ctx->wedge_idx_cdf[bsize], MAX_WEDGE_TYPES, ACCT_STR); |
1398 | 0 | } |
1399 | 0 | } |
1400 | 0 | } |
1401 | 0 | } |
1402 | |
|
1403 | 0 | for (int ref = 0; ref < 1 + has_second_ref(mbmi); ++ref) { |
1404 | 0 | const MV_REFERENCE_FRAME frame = mbmi->ref_frame[ref]; |
1405 | 0 | xd->block_ref_scale_factors[ref] = get_ref_scale_factors_const(cm, frame); |
1406 | 0 | } |
1407 | |
|
1408 | 0 | mbmi->motion_mode = SIMPLE_TRANSLATION; |
1409 | 0 | if (is_motion_variation_allowed_bsize(mbmi->bsize) && !mbmi->skip_mode && |
1410 | 0 | !has_second_ref(mbmi)) { |
1411 | 0 | mbmi->num_proj_ref = av1_findSamples(cm, xd, pts, pts_inref); |
1412 | 0 | } |
1413 | 0 | av1_count_overlappable_neighbors(cm, xd); |
1414 | |
|
1415 | 0 | if (mbmi->ref_frame[1] != INTRA_FRAME) |
1416 | 0 | mbmi->motion_mode = read_motion_mode(cm, xd, mbmi, r); |
1417 | | |
1418 | | // init |
1419 | 0 | mbmi->comp_group_idx = 0; |
1420 | 0 | mbmi->compound_idx = 1; |
1421 | 0 | mbmi->interinter_comp.type = COMPOUND_AVERAGE; |
1422 | |
|
1423 | 0 | if (has_second_ref(mbmi) && !mbmi->skip_mode) { |
1424 | | // Read idx to indicate current compound inter prediction mode group |
1425 | 0 | const int masked_compound_used = is_any_masked_compound_used(bsize) && |
1426 | 0 | cm->seq_params->enable_masked_compound; |
1427 | |
|
1428 | 0 | if (masked_compound_used) { |
1429 | 0 | const int ctx_comp_group_idx = get_comp_group_idx_context(xd); |
1430 | 0 | mbmi->comp_group_idx = (uint8_t)aom_read_symbol( |
1431 | 0 | r, ec_ctx->comp_group_idx_cdf[ctx_comp_group_idx], 2, ACCT_STR); |
1432 | 0 | } |
1433 | |
|
1434 | 0 | if (mbmi->comp_group_idx == 0) { |
1435 | 0 | if (cm->seq_params->order_hint_info.enable_dist_wtd_comp) { |
1436 | 0 | const int comp_index_ctx = get_comp_index_context(cm, xd); |
1437 | 0 | mbmi->compound_idx = (uint8_t)aom_read_symbol( |
1438 | 0 | r, ec_ctx->compound_index_cdf[comp_index_ctx], 2, ACCT_STR); |
1439 | 0 | mbmi->interinter_comp.type = |
1440 | 0 | mbmi->compound_idx ? COMPOUND_AVERAGE : COMPOUND_DISTWTD; |
1441 | 0 | } else { |
1442 | | // Distance-weighted compound is disabled, so always use average |
1443 | 0 | mbmi->compound_idx = 1; |
1444 | 0 | mbmi->interinter_comp.type = COMPOUND_AVERAGE; |
1445 | 0 | } |
1446 | 0 | } else { |
1447 | 0 | assert(cm->current_frame.reference_mode != SINGLE_REFERENCE && |
1448 | 0 | is_inter_compound_mode(mbmi->mode) && |
1449 | 0 | mbmi->motion_mode == SIMPLE_TRANSLATION); |
1450 | 0 | assert(masked_compound_used); |
1451 | | |
1452 | | // compound_diffwtd, wedge |
1453 | 0 | if (is_interinter_compound_used(COMPOUND_WEDGE, bsize)) { |
1454 | 0 | mbmi->interinter_comp.type = |
1455 | 0 | COMPOUND_WEDGE + aom_read_symbol(r, |
1456 | 0 | ec_ctx->compound_type_cdf[bsize], |
1457 | 0 | MASKED_COMPOUND_TYPES, ACCT_STR); |
1458 | 0 | } else { |
1459 | 0 | mbmi->interinter_comp.type = COMPOUND_DIFFWTD; |
1460 | 0 | } |
1461 | |
|
1462 | 0 | if (mbmi->interinter_comp.type == COMPOUND_WEDGE) { |
1463 | 0 | assert(is_interinter_compound_used(COMPOUND_WEDGE, bsize)); |
1464 | 0 | mbmi->interinter_comp.wedge_index = (int8_t)aom_read_symbol( |
1465 | 0 | r, ec_ctx->wedge_idx_cdf[bsize], MAX_WEDGE_TYPES, ACCT_STR); |
1466 | 0 | mbmi->interinter_comp.wedge_sign = (int8_t)aom_read_bit(r, ACCT_STR); |
1467 | 0 | } else { |
1468 | 0 | assert(mbmi->interinter_comp.type == COMPOUND_DIFFWTD); |
1469 | 0 | mbmi->interinter_comp.mask_type = |
1470 | 0 | aom_read_literal(r, MAX_DIFFWTD_MASK_BITS, ACCT_STR); |
1471 | 0 | } |
1472 | 0 | } |
1473 | 0 | } |
1474 | |
|
1475 | 0 | read_mb_interp_filter(xd, features->interp_filter, |
1476 | 0 | cm->seq_params->enable_dual_filter, mbmi, r); |
1477 | |
|
1478 | 0 | #if !CONFIG_REALTIME_ONLY |
1479 | 0 | if (mbmi->motion_mode == WARPED_CAUSAL) { |
1480 | 0 | const int mi_row = xd->mi_row; |
1481 | 0 | const int mi_col = xd->mi_col; |
1482 | 0 | mbmi->wm_params.wmtype = DEFAULT_WMTYPE; |
1483 | 0 | mbmi->wm_params.invalid = 0; |
1484 | |
|
1485 | 0 | if (mbmi->num_proj_ref > 1) { |
1486 | 0 | mbmi->num_proj_ref = av1_selectSamples(&mbmi->mv[0].as_mv, pts, pts_inref, |
1487 | 0 | mbmi->num_proj_ref, bsize); |
1488 | 0 | } |
1489 | |
|
1490 | 0 | if (av1_find_projection(mbmi->num_proj_ref, pts, pts_inref, bsize, |
1491 | 0 | mbmi->mv[0].as_mv.row, mbmi->mv[0].as_mv.col, |
1492 | 0 | &mbmi->wm_params, mi_row, mi_col)) { |
1493 | | #if WARPED_MOTION_DEBUG |
1494 | | printf("Warning: unexpected warped model from aomenc\n"); |
1495 | | #endif |
1496 | 0 | mbmi->wm_params.invalid = 1; |
1497 | 0 | } |
1498 | 0 | } |
1499 | 0 | #endif |
1500 | |
|
1501 | 0 | xd->cfl.store_y = store_cfl_required(cm, xd); |
1502 | |
|
1503 | | #if DEC_MISMATCH_DEBUG |
1504 | | dec_dump_logs(cm, mi, mi_row, mi_col, mode_ctx); |
1505 | | #endif // DEC_MISMATCH_DEBUG |
1506 | 0 | } |
1507 | | |
1508 | | static void read_inter_frame_mode_info(AV1Decoder *const pbi, |
1509 | 0 | DecoderCodingBlock *dcb, aom_reader *r) { |
1510 | 0 | AV1_COMMON *const cm = &pbi->common; |
1511 | 0 | MACROBLOCKD *const xd = &dcb->xd; |
1512 | 0 | MB_MODE_INFO *const mbmi = xd->mi[0]; |
1513 | 0 | int inter_block = 1; |
1514 | |
|
1515 | 0 | mbmi->mv[0].as_int = 0; |
1516 | 0 | mbmi->mv[1].as_int = 0; |
1517 | 0 | mbmi->segment_id = read_inter_segment_id(cm, xd, 1, r); |
1518 | |
|
1519 | 0 | mbmi->skip_mode = read_skip_mode(cm, xd, mbmi->segment_id, r); |
1520 | |
|
1521 | 0 | if (mbmi->skip_mode) |
1522 | 0 | mbmi->skip_txfm = 1; |
1523 | 0 | else |
1524 | 0 | mbmi->skip_txfm = read_skip_txfm(cm, xd, mbmi->segment_id, r); |
1525 | |
|
1526 | 0 | if (!cm->seg.segid_preskip) |
1527 | 0 | mbmi->segment_id = read_inter_segment_id(cm, xd, 0, r); |
1528 | |
|
1529 | 0 | read_cdef(cm, r, xd); |
1530 | |
|
1531 | 0 | read_delta_q_params(cm, xd, r); |
1532 | |
|
1533 | 0 | if (!mbmi->skip_mode) |
1534 | 0 | inter_block = read_is_inter_block(cm, xd, mbmi->segment_id, r); |
1535 | |
|
1536 | 0 | mbmi->current_qindex = xd->current_base_qindex; |
1537 | |
|
1538 | 0 | xd->above_txfm_context = |
1539 | 0 | cm->above_contexts.txfm[xd->tile.tile_row] + xd->mi_col; |
1540 | 0 | xd->left_txfm_context = |
1541 | 0 | xd->left_txfm_context_buffer + (xd->mi_row & MAX_MIB_MASK); |
1542 | |
|
1543 | 0 | if (inter_block) |
1544 | 0 | read_inter_block_mode_info(pbi, dcb, mbmi, r); |
1545 | 0 | else |
1546 | 0 | read_intra_block_mode_info(cm, xd, mbmi, r); |
1547 | 0 | } |
1548 | | |
1549 | | static void intra_copy_frame_mvs(AV1_COMMON *const cm, int mi_row, int mi_col, |
1550 | 0 | int x_mis, int y_mis) { |
1551 | 0 | const int frame_mvs_stride = ROUND_POWER_OF_TWO(cm->mi_params.mi_cols, 1); |
1552 | 0 | MV_REF *frame_mvs = |
1553 | 0 | cm->cur_frame->mvs + (mi_row >> 1) * frame_mvs_stride + (mi_col >> 1); |
1554 | 0 | x_mis = ROUND_POWER_OF_TWO(x_mis, 1); |
1555 | 0 | y_mis = ROUND_POWER_OF_TWO(y_mis, 1); |
1556 | |
|
1557 | 0 | for (int h = 0; h < y_mis; h++) { |
1558 | 0 | MV_REF *mv = frame_mvs; |
1559 | 0 | for (int w = 0; w < x_mis; w++) { |
1560 | 0 | mv->ref_frame = NONE_FRAME; |
1561 | 0 | mv++; |
1562 | 0 | } |
1563 | 0 | frame_mvs += frame_mvs_stride; |
1564 | 0 | } |
1565 | 0 | } |
1566 | | |
1567 | | void av1_read_mode_info(AV1Decoder *const pbi, DecoderCodingBlock *dcb, |
1568 | 0 | aom_reader *r, int x_mis, int y_mis) { |
1569 | 0 | AV1_COMMON *const cm = &pbi->common; |
1570 | 0 | MACROBLOCKD *const xd = &dcb->xd; |
1571 | 0 | MB_MODE_INFO *const mi = xd->mi[0]; |
1572 | 0 | mi->use_intrabc = 0; |
1573 | |
|
1574 | 0 | if (frame_is_intra_only(cm)) { |
1575 | 0 | read_intra_frame_mode_info(cm, dcb, r); |
1576 | 0 | if (cm->seq_params->order_hint_info.enable_ref_frame_mvs) |
1577 | 0 | intra_copy_frame_mvs(cm, xd->mi_row, xd->mi_col, x_mis, y_mis); |
1578 | 0 | } else { |
1579 | 0 | read_inter_frame_mode_info(pbi, dcb, r); |
1580 | 0 | if (cm->seq_params->order_hint_info.enable_ref_frame_mvs) |
1581 | 0 | av1_copy_frame_mvs(cm, mi, xd->mi_row, xd->mi_col, x_mis, y_mis); |
1582 | 0 | } |
1583 | 0 | } |