FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/cbs_av1_syntax_template.c
Date: 2024-11-20 23:03:26
Exec Total Coverage
Lines: 857 1182 72.5%
Functions: 70 82 85.4%
Branches: 719 1606 44.8%
Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 12666 static int FUNC(obu_header)(CodedBitstreamContext *ctx, RWContext *rw,
20 AV1RawOBUHeader *current)
21 {
22 12666 CodedBitstreamAV1Context *priv = ctx->priv_data;
23 int err;
24
25 12666 HEADER("OBU header");
26
27
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 12666 fc(1, obu_forbidden_bit, 0, 0);
28
29
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 12666 fc(4, obu_type, 0, AV1_OBU_PADDING);
30
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 12666 flag(obu_extension_flag);
31
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 12666 flag(obu_has_size_field);
32
33
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 12666 fc(1, obu_reserved_1bit, 0, 0);
34
35
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 12666 if (current->obu_extension_flag) {
36
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 824 fb(3, temporal_id);
37
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 824 fb(2, spatial_id);
38
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 824 fc(3, extension_header_reserved_3bits, 0, 0);
39 } else {
40
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 11842 infer(temporal_id, 0);
41
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 11842 infer(spatial_id, 0);
42 }
43
44 12666 priv->temporal_id = current->temporal_id;
45 12666 priv->spatial_id = current->spatial_id;
46
47 12666 return 0;
48 }
49
50 1844 static int FUNC(trailing_bits)(CodedBitstreamContext *ctx, RWContext *rw, int nb_bits)
51 {
52 int err;
53
54
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 1844 av_assert0(nb_bits > 0);
55
56
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 1844 fixed(1, trailing_one_bit, 1);
57 1844 --nb_bits;
58
59
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 10312 while (nb_bits > 0) {
60
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 8468 fixed(1, trailing_zero_bit, 0);
61 8468 --nb_bits;
62 }
63
64 1844 return 0;
65 }
66
67 5574 static int FUNC(byte_alignment)(CodedBitstreamContext *ctx, RWContext *rw)
68 {
69 int err;
70
71
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 18658 while (byte_alignment(rw) != 0)
72
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 13084 fixed(1, zero_bit, 0);
73
74 5574 return 0;
75 }
76
77 1220 static int FUNC(color_config)(CodedBitstreamContext *ctx, RWContext *rw,
78 AV1RawColorConfig *current, int seq_profile)
79 {
80 1220 CodedBitstreamAV1Context *priv = ctx->priv_data;
81 int err;
82
83
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 1220 flag(high_bitdepth);
84
85
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 1220 if (seq_profile == AV_PROFILE_AV1_PROFESSIONAL &&
86 ✗ current->high_bitdepth) {
87 ✗ flag(twelve_bit);
88 ✗ priv->bit_depth = current->twelve_bit ? 12 : 10;
89 } else {
90
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 1220 priv->bit_depth = current->high_bitdepth ? 10 : 8;
91 }
92
93
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 1220 if (seq_profile == AV_PROFILE_AV1_HIGH)
94 ✗ infer(mono_chrome, 0);
95 else
96
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 1220 flag(mono_chrome);
97
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 1220 priv->num_planes = current->mono_chrome ? 1 : 3;
98
99
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 1220 flag(color_description_present_flag);
100
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 1220 if (current->color_description_present_flag) {
101 ✗ fb(8, color_primaries);
102 ✗ fb(8, transfer_characteristics);
103 ✗ fb(8, matrix_coefficients);
104 } else {
105
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 1220 infer(color_primaries, AVCOL_PRI_UNSPECIFIED);
106
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 1220 infer(transfer_characteristics, AVCOL_TRC_UNSPECIFIED);
107
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 1220 infer(matrix_coefficients, AVCOL_SPC_UNSPECIFIED);
108 }
109
110
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 1220 if (current->mono_chrome) {
111 ✗ flag(color_range);
112
113 ✗ infer(subsampling_x, 1);
114 ✗ infer(subsampling_y, 1);
115 ✗ infer(chroma_sample_position, AV1_CSP_UNKNOWN);
116 ✗ infer(separate_uv_delta_q, 0);
117
118
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 1220 } else if (current->color_primaries == AVCOL_PRI_BT709 &&
119 ✗ current->transfer_characteristics == AVCOL_TRC_IEC61966_2_1 &&
120 ✗ current->matrix_coefficients == AVCOL_SPC_RGB) {
121 ✗ infer(color_range, 1);
122 ✗ infer(subsampling_x, 0);
123 ✗ infer(subsampling_y, 0);
124 ✗ flag(separate_uv_delta_q);
125
126 } else {
127
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 1220 flag(color_range);
128
129
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 1220 if (seq_profile == AV_PROFILE_AV1_MAIN) {
130
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 1220 infer(subsampling_x, 1);
131
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 1220 infer(subsampling_y, 1);
132 ✗ } else if (seq_profile == AV_PROFILE_AV1_HIGH) {
133 ✗ infer(subsampling_x, 0);
134 ✗ infer(subsampling_y, 0);
135 } else {
136 ✗ if (priv->bit_depth == 12) {
137 ✗ fb(1, subsampling_x);
138 ✗ if (current->subsampling_x)
139 ✗ fb(1, subsampling_y);
140 else
141 ✗ infer(subsampling_y, 0);
142 } else {
143 ✗ infer(subsampling_x, 1);
144 ✗ infer(subsampling_y, 0);
145 }
146 }
147
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 1220 if (current->subsampling_x && current->subsampling_y) {
148
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 1220 fc(2, chroma_sample_position, AV1_CSP_UNKNOWN,
149 AV1_CSP_COLOCATED);
150 }
151
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 1220 flag(separate_uv_delta_q);
153 }
154
155 1220 return 0;
156 }
157
158 746 static int FUNC(timing_info)(CodedBitstreamContext *ctx, RWContext *rw,
159 AV1RawTimingInfo *current)
160 {
161 int err;
162
163
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 746 fc(32, num_units_in_display_tick, 1, MAX_UINT_BITS(32));
164
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 746 fc(32, time_scale, 1, MAX_UINT_BITS(32));
165
166
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 746 flag(equal_picture_interval);
167
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 746 if (current->equal_picture_interval)
168 ✗ uvlc(num_ticks_per_picture_minus_1, 0, MAX_UINT_BITS(32) - 1);
169
170 746 return 0;
171 }
172
173 746 static int FUNC(decoder_model_info)(CodedBitstreamContext *ctx, RWContext *rw,
174 AV1RawDecoderModelInfo *current)
175 {
176 int err;
177
178
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 746 fb(5, buffer_delay_length_minus_1);
179
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 746 fc(32, num_units_in_decoding_tick, 1, MAX_UINT_BITS(32));
180
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 746 fb(5, buffer_removal_time_length_minus_1);
181
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 746 fb(5, frame_presentation_time_length_minus_1);
182
183 746 return 0;
184 }
185
186 1220 static int FUNC(sequence_header_obu)(CodedBitstreamContext *ctx, RWContext *rw,
187 AV1RawSequenceHeader *current)
188 {
189 int i, err;
190
191 1220 HEADER("Sequence Header");
192
193
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 1220 fc(3, seq_profile, AV_PROFILE_AV1_MAIN,
194 AV_PROFILE_AV1_PROFESSIONAL);
195
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 1220 flag(still_picture);
196
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 1220 flag(reduced_still_picture_header);
197
198
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 1220 if (current->reduced_still_picture_header) {
199 ✗ infer(timing_info_present_flag, 0);
200 ✗ infer(decoder_model_info_present_flag, 0);
201 ✗ infer(initial_display_delay_present_flag, 0);
202 ✗ infer(operating_points_cnt_minus_1, 0);
203 ✗ infer(operating_point_idc[0], 0);
204
205 ✗ fb(5, seq_level_idx[0]);
206
207 ✗ infer(seq_tier[0], 0);
208 ✗ infer(decoder_model_present_for_this_op[0], 0);
209 ✗ infer(initial_display_delay_present_for_this_op[0], 0);
210
211 } else {
212
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 1220 flag(timing_info_present_flag);
213
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 1220 if (current->timing_info_present_flag) {
214
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 746 CHECK(FUNC(timing_info)(ctx, rw, &current->timing_info));
215
216
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 746 flag(decoder_model_info_present_flag);
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 746 if (current->decoder_model_info_present_flag) {
218
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 746 CHECK(FUNC(decoder_model_info)
219 (ctx, rw, &current->decoder_model_info));
220 }
221 } else {
222
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 474 infer(decoder_model_info_present_flag, 0);
223 }
224
225
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 1220 flag(initial_display_delay_present_flag);
226
227
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 1220 fb(5, operating_points_cnt_minus_1);
228
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 2510 for (i = 0; i <= current->operating_points_cnt_minus_1; i++) {
229
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 1290 fbs(12, operating_point_idc[i], 1, i);
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 1290 fbs(5, seq_level_idx[i], 1, i);
231
232
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 1290 if (current->seq_level_idx[i] > 7)
233 ✗ flags(seq_tier[i], 1, i);
234 else
235
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 1290 infer(seq_tier[i], 0);
236
237
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 1290 if (current->decoder_model_info_present_flag) {
238
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 746 flags(decoder_model_present_for_this_op[i], 1, i);
239
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 746 if (current->decoder_model_present_for_this_op[i]) {
240 746 int n = current->decoder_model_info.buffer_delay_length_minus_1 + 1;
241
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 746 fbs(n, decoder_buffer_delay[i], 1, i);
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 746 fbs(n, encoder_buffer_delay[i], 1, i);
243
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 746 flags(low_delay_mode_flag[i], 1, i);
244 }
245 } else {
246
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 544 infer(decoder_model_present_for_this_op[i], 0);
247 }
248
249
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 1290 if (current->initial_display_delay_present_flag) {
250
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 746 flags(initial_display_delay_present_for_this_op[i], 1, i);
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 746 if (current->initial_display_delay_present_for_this_op[i])
252
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 746 fbs(4, initial_display_delay_minus_1[i], 1, i);
253 }
254 }
255 }
256
257
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 1220 fb(4, frame_width_bits_minus_1);
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 1220 fb(4, frame_height_bits_minus_1);
259
260
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 1220 fb(current->frame_width_bits_minus_1 + 1, max_frame_width_minus_1);
261
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 1220 fb(current->frame_height_bits_minus_1 + 1, max_frame_height_minus_1);
262
263
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 1220 if (current->reduced_still_picture_header)
264 ✗ infer(frame_id_numbers_present_flag, 0);
265 else
266
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 1220 flag(frame_id_numbers_present_flag);
267
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 1220 if (current->frame_id_numbers_present_flag) {
268 ✗ fb(4, delta_frame_id_length_minus_2);
269 ✗ fb(3, additional_frame_id_length_minus_1);
270 }
271
272
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 1220 flag(use_128x128_superblock);
273
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 1220 flag(enable_filter_intra);
274
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 1220 flag(enable_intra_edge_filter);
275
276
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 1220 if (current->reduced_still_picture_header) {
277 ✗ infer(enable_interintra_compound, 0);
278 ✗ infer(enable_masked_compound, 0);
279 ✗ infer(enable_warped_motion, 0);
280 ✗ infer(enable_dual_filter, 0);
281 ✗ infer(enable_order_hint, 0);
282 ✗ infer(enable_jnt_comp, 0);
283 ✗ infer(enable_ref_frame_mvs, 0);
284
285 ✗ infer(seq_force_screen_content_tools,
286 AV1_SELECT_SCREEN_CONTENT_TOOLS);
287 ✗ infer(seq_force_integer_mv,
288 AV1_SELECT_INTEGER_MV);
289 } else {
290
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 1220 flag(enable_interintra_compound);
291
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 1220 flag(enable_masked_compound);
292
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 1220 flag(enable_warped_motion);
293
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 1220 flag(enable_dual_filter);
294
295
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 1220 flag(enable_order_hint);
296
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 1220 if (current->enable_order_hint) {
297
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 1220 flag(enable_jnt_comp);
298
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 1220 flag(enable_ref_frame_mvs);
299 } else {
300 ✗ infer(enable_jnt_comp, 0);
301 ✗ infer(enable_ref_frame_mvs, 0);
302 }
303
304
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 1220 flag(seq_choose_screen_content_tools);
305
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 1220 if (current->seq_choose_screen_content_tools)
306
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 1220 infer(seq_force_screen_content_tools,
307 AV1_SELECT_SCREEN_CONTENT_TOOLS);
308 else
309 ✗ fb(1, seq_force_screen_content_tools);
310
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 1220 if (current->seq_force_screen_content_tools > 0) {
311
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 1220 flag(seq_choose_integer_mv);
312
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 1220 if (current->seq_choose_integer_mv)
313
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 1220 infer(seq_force_integer_mv,
314 AV1_SELECT_INTEGER_MV);
315 else
316 ✗ fb(1, seq_force_integer_mv);
317 } else {
318 ✗ infer(seq_force_integer_mv, AV1_SELECT_INTEGER_MV);
319 }
320
321
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 1220 if (current->enable_order_hint)
322
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 1220 fb(3, order_hint_bits_minus_1);
323 }
324
325
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 1220 flag(enable_superres);
326
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 1220 flag(enable_cdef);
327
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 1220 flag(enable_restoration);
328
329
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 1220 CHECK(FUNC(color_config)(ctx, rw, &current->color_config,
330 current->seq_profile));
331
332
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 1220 flag(film_grain_params_present);
333
334 1220 return 0;
335 }
336
337 2382 static int FUNC(temporal_delimiter_obu)(CodedBitstreamContext *ctx, RWContext *rw)
338 {
339 2382 CodedBitstreamAV1Context *priv = ctx->priv_data;
340
341 2382 HEADER("Temporal Delimiter");
342
343 2382 priv->seen_frame_header = 0;
344
345 2382 return 0;
346 }
347
348 84 static int FUNC(set_frame_refs)(CodedBitstreamContext *ctx, RWContext *rw,
349 AV1RawFrameHeader *current)
350 {
351 84 CodedBitstreamAV1Context *priv = ctx->priv_data;
352 84 const AV1RawSequenceHeader *seq = priv->sequence_header;
353 static const uint8_t ref_frame_list[AV1_NUM_REF_FRAMES - 2] = {
354 AV1_REF_FRAME_LAST2, AV1_REF_FRAME_LAST3, AV1_REF_FRAME_BWDREF,
355 AV1_REF_FRAME_ALTREF2, AV1_REF_FRAME_ALTREF
356 };
357 int8_t ref_frame_idx[AV1_REFS_PER_FRAME], used_frame[AV1_NUM_REF_FRAMES];
358 int16_t shifted_order_hints[AV1_NUM_REF_FRAMES];
359 int cur_frame_hint, latest_order_hint, earliest_order_hint, ref;
360 int i, j;
361
362
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 672 for (i = 0; i < AV1_REFS_PER_FRAME; i++)
363 588 ref_frame_idx[i] = AV1_REF_FRAME_NONE;
364 84 ref_frame_idx[AV1_REF_FRAME_LAST - AV1_REF_FRAME_LAST] = current->last_frame_idx;
365 84 ref_frame_idx[AV1_REF_FRAME_GOLDEN - AV1_REF_FRAME_LAST] = current->golden_frame_idx;
366
367
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 756 for (i = 0; i < AV1_NUM_REF_FRAMES; i++)
368 672 used_frame[i] = 0;
369 84 used_frame[current->last_frame_idx] = 1;
370 84 used_frame[current->golden_frame_idx] = 1;
371
372 84 cur_frame_hint = 1 << (seq->order_hint_bits_minus_1);
373
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 756 for (i = 0; i < AV1_NUM_REF_FRAMES; i++)
374 672 shifted_order_hints[i] = cur_frame_hint +
375 672 cbs_av1_get_relative_dist(seq, priv->ref[i].order_hint,
376 672 priv->order_hint);
377
378 84 latest_order_hint = shifted_order_hints[current->last_frame_idx];
379 84 earliest_order_hint = shifted_order_hints[current->golden_frame_idx];
380
381 84 ref = AV1_REF_FRAME_NONE;
382
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 756 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
383 672 int hint = shifted_order_hints[i];
384
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 672 if (!used_frame[i] && hint >= cur_frame_hint &&
385
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 168 (ref < 0 || hint >= latest_order_hint)) {
386 174 ref = i;
387 174 latest_order_hint = hint;
388 }
389 }
390
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 84 if (ref >= 0) {
391 84 ref_frame_idx[AV1_REF_FRAME_ALTREF - AV1_REF_FRAME_LAST] = ref;
392 84 used_frame[ref] = 1;
393 }
394
395 84 ref = AV1_REF_FRAME_NONE;
396
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 756 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
397 672 int hint = shifted_order_hints[i];
398
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 672 if (!used_frame[i] && hint >= cur_frame_hint &&
399
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 84 (ref < 0 || hint < earliest_order_hint)) {
400 90 ref = i;
401 90 earliest_order_hint = hint;
402 }
403 }
404
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 84 if (ref >= 0) {
405 84 ref_frame_idx[AV1_REF_FRAME_BWDREF - AV1_REF_FRAME_LAST] = ref;
406 84 used_frame[ref] = 1;
407 }
408
409 84 ref = AV1_REF_FRAME_NONE;
410
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 756 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
411 672 int hint = shifted_order_hints[i];
412
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 672 if (!used_frame[i] && hint >= cur_frame_hint &&
413
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 12 (ref < 0 || hint < earliest_order_hint)) {
414 72 ref = i;
415 72 earliest_order_hint = hint;
416 }
417 }
418
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 84 if (ref >= 0) {
419 72 ref_frame_idx[AV1_REF_FRAME_ALTREF2 - AV1_REF_FRAME_LAST] = ref;
420 72 used_frame[ref] = 1;
421 }
422
423
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 504 for (i = 0; i < AV1_REFS_PER_FRAME - 2; i++) {
424 420 int ref_frame = ref_frame_list[i];
425
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 420 if (ref_frame_idx[ref_frame - AV1_REF_FRAME_LAST] < 0 ) {
426 180 ref = AV1_REF_FRAME_NONE;
427
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 1620 for (j = 0; j < AV1_NUM_REF_FRAMES; j++) {
428 1440 int hint = shifted_order_hints[j];
429
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 1440 if (!used_frame[j] && hint < cur_frame_hint &&
430
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 264 (ref < 0 || hint >= latest_order_hint)) {
431 336 ref = j;
432 336 latest_order_hint = hint;
433 }
434 }
435
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 180 if (ref >= 0) {
436 180 ref_frame_idx[ref_frame - AV1_REF_FRAME_LAST] = ref;
437 180 used_frame[ref] = 1;
438 }
439 }
440 }
441
442 84 ref = AV1_REF_FRAME_NONE;
443
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 756 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
444 672 int hint = shifted_order_hints[i];
445
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 672 if (ref < 0 || hint < earliest_order_hint) {
446 150 ref = i;
447 150 earliest_order_hint = hint;
448 }
449 }
450
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 672 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
451
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 588 if (ref_frame_idx[i] < 0)
452 ✗ ref_frame_idx[i] = ref;
453
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 588 infer(ref_frame_idx[i], ref_frame_idx[i]);
454 }
455
456 84 return 0;
457 }
458
459 2712 static int FUNC(superres_params)(CodedBitstreamContext *ctx, RWContext *rw,
460 AV1RawFrameHeader *current)
461 {
462 2712 CodedBitstreamAV1Context *priv = ctx->priv_data;
463 2712 const AV1RawSequenceHeader *seq = priv->sequence_header;
464 int denom, err;
465
466
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 2712 if (seq->enable_superres)
467 ✗ flag(use_superres);
468 else
469
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 2712 infer(use_superres, 0);
470
471
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 2712 if (current->use_superres) {
472 ✗ fb(3, coded_denom);
473 ✗ denom = current->coded_denom + AV1_SUPERRES_DENOM_MIN;
474 } else {
475 2712 denom = AV1_SUPERRES_NUM;
476 }
477
478 2712 priv->upscaled_width = priv->frame_width;
479 2712 priv->frame_width = (priv->upscaled_width * AV1_SUPERRES_NUM +
480 2712 denom / 2) / denom;
481
482 2712 return 0;
483 }
484
485 2622 static int FUNC(frame_size)(CodedBitstreamContext *ctx, RWContext *rw,
486 AV1RawFrameHeader *current)
487 {
488 2622 CodedBitstreamAV1Context *priv = ctx->priv_data;
489 2622 const AV1RawSequenceHeader *seq = priv->sequence_header;
490 int err;
491
492
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 2622 if (current->frame_size_override_flag) {
493
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 22 fb(seq->frame_width_bits_minus_1 + 1, frame_width_minus_1);
494
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 22 fb(seq->frame_height_bits_minus_1 + 1, frame_height_minus_1);
495 } else {
496
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 2600 infer(frame_width_minus_1, seq->max_frame_width_minus_1);
497
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 2600 infer(frame_height_minus_1, seq->max_frame_height_minus_1);
498 }
499
500 2622 priv->frame_width = current->frame_width_minus_1 + 1;
501 2622 priv->frame_height = current->frame_height_minus_1 + 1;
502
503
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 2622 CHECK(FUNC(superres_params)(ctx, rw, current));
504
505 2622 return 0;
506 }
507
508 2622 static int FUNC(render_size)(CodedBitstreamContext *ctx, RWContext *rw,
509 AV1RawFrameHeader *current)
510 {
511 2622 CodedBitstreamAV1Context *priv = ctx->priv_data;
512 int err;
513
514
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 2622 flag(render_and_frame_size_different);
515
516
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 2622 if (current->render_and_frame_size_different) {
517 ✗ fb(16, render_width_minus_1);
518 ✗ fb(16, render_height_minus_1);
519 } else {
520
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 2622 infer(render_width_minus_1, current->frame_width_minus_1);
521
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 2622 infer(render_height_minus_1, current->frame_height_minus_1);
522 }
523
524 2622 priv->render_width = current->render_width_minus_1 + 1;
525 2622 priv->render_height = current->render_height_minus_1 + 1;
526
527 2622 return 0;
528 }
529
530 90 static int FUNC(frame_size_with_refs)(CodedBitstreamContext *ctx, RWContext *rw,
531 AV1RawFrameHeader *current)
532 {
533 90 CodedBitstreamAV1Context *priv = ctx->priv_data;
534 int i, err;
535
536
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 90 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
537
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 90 flags(found_ref[i], 1, i);
538
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 90 if (current->found_ref[i]) {
539 90 AV1ReferenceFrameState *ref =
540 90 &priv->ref[current->ref_frame_idx[i]];
541
542
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 90 if (!ref->valid) {
543 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR,
544 "Missing reference frame needed for frame size "
545 "(ref = %d, ref_frame_idx = %d).\n",
546 ✗ i, current->ref_frame_idx[i]);
547 ✗ return AVERROR_INVALIDDATA;
548 }
549
550
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 90 infer(frame_width_minus_1, ref->upscaled_width - 1);
551
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 90 infer(frame_height_minus_1, ref->frame_height - 1);
552
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 90 infer(render_width_minus_1, ref->render_width - 1);
553
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 90 infer(render_height_minus_1, ref->render_height - 1);
554
555 90 priv->upscaled_width = ref->upscaled_width;
556 90 priv->frame_width = priv->upscaled_width;
557 90 priv->frame_height = ref->frame_height;
558 90 priv->render_width = ref->render_width;
559 90 priv->render_height = ref->render_height;
560 90 break;
561 }
562 }
563
564
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 90 if (i >= AV1_REFS_PER_FRAME) {
565 ✗ CHECK(FUNC(frame_size)(ctx, rw, current));
566 ✗ CHECK(FUNC(render_size)(ctx, rw, current));
567 } else {
568
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 90 CHECK(FUNC(superres_params)(ctx, rw, current));
569 }
570
571 90 return 0;
572 }
573
574 2300 static int FUNC(interpolation_filter)(CodedBitstreamContext *ctx, RWContext *rw,
575 AV1RawFrameHeader *current)
576 {
577 int err;
578
579
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 2300 flag(is_filter_switchable);
580
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 2300 if (current->is_filter_switchable)
581
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 1838 infer(interpolation_filter,
582 AV1_INTERPOLATION_FILTER_SWITCHABLE);
583 else
584
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 462 fb(2, interpolation_filter);
585
586 2300 return 0;
587 }
588
589 2712 static int FUNC(tile_info)(CodedBitstreamContext *ctx, RWContext *rw,
590 AV1RawFrameHeader *current)
591 {
592 2712 CodedBitstreamAV1Context *priv = ctx->priv_data;
593 2712 const AV1RawSequenceHeader *seq = priv->sequence_header;
594 int mi_cols, mi_rows, sb_cols, sb_rows, sb_shift, sb_size;
595 int max_tile_width_sb, max_tile_height_sb, max_tile_area_sb;
596 int min_log2_tile_cols, max_log2_tile_cols, max_log2_tile_rows;
597 int min_log2_tiles, min_log2_tile_rows;
598 int i, err;
599
600 2712 mi_cols = 2 * ((priv->frame_width + 7) >> 3);
601 2712 mi_rows = 2 * ((priv->frame_height + 7) >> 3);
602
603 6664 sb_cols = seq->use_128x128_superblock ? ((mi_cols + 31) >> 5)
604
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 2712 : ((mi_cols + 15) >> 4);
605 6664 sb_rows = seq->use_128x128_superblock ? ((mi_rows + 31) >> 5)
606
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 2712 : ((mi_rows + 15) >> 4);
607
608
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 2712 sb_shift = seq->use_128x128_superblock ? 5 : 4;
609 2712 sb_size = sb_shift + 2;
610
611 2712 max_tile_width_sb = AV1_MAX_TILE_WIDTH >> sb_size;
612 2712 max_tile_area_sb = AV1_MAX_TILE_AREA >> (2 * sb_size);
613
614 2712 min_log2_tile_cols = cbs_av1_tile_log2(max_tile_width_sb, sb_cols);
615 2712 max_log2_tile_cols = cbs_av1_tile_log2(1, FFMIN(sb_cols, AV1_MAX_TILE_COLS));
616 2712 max_log2_tile_rows = cbs_av1_tile_log2(1, FFMIN(sb_rows, AV1_MAX_TILE_ROWS));
617
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 2712 min_log2_tiles = FFMAX(min_log2_tile_cols,
618 cbs_av1_tile_log2(max_tile_area_sb, sb_rows * sb_cols));
619
620
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 2712 flag(uniform_tile_spacing_flag);
621
622
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 2712 if (current->uniform_tile_spacing_flag) {
623 int tile_width_sb, tile_height_sb;
624
625
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 2554 increment(tile_cols_log2, min_log2_tile_cols, max_log2_tile_cols);
626
627 2554 tile_width_sb = (sb_cols + (1 << current->tile_cols_log2) - 1) >>
628 2554 current->tile_cols_log2;
629
630
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 5844 for (int off = 0, i = 0; off < sb_cols; off += tile_width_sb)
631 3290 current->tile_start_col_sb[i++] = off;
632
633 2554 current->tile_cols = (sb_cols + tile_width_sb - 1) / tile_width_sb;
634
635 2554 min_log2_tile_rows = FFMAX(min_log2_tiles - current->tile_cols_log2, 0);
636
637
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 2554 increment(tile_rows_log2, min_log2_tile_rows, max_log2_tile_rows);
638
639 2554 tile_height_sb = (sb_rows + (1 << current->tile_rows_log2) - 1) >>
640 2554 current->tile_rows_log2;
641
642
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 5244 for (int off = 0, i = 0; off < sb_rows; off += tile_height_sb)
643 2690 current->tile_start_row_sb[i++] = off;
644
645 2554 current->tile_rows = (sb_rows + tile_height_sb - 1) / tile_height_sb;
646
647
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 3290 for (i = 0; i < current->tile_cols - 1; i++)
648
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 736 infer(width_in_sbs_minus_1[i], tile_width_sb - 1);
649
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 2554 infer(width_in_sbs_minus_1[i],
650 sb_cols - (current->tile_cols - 1) * tile_width_sb - 1);
651
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 2690 for (i = 0; i < current->tile_rows - 1; i++)
652
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 136 infer(height_in_sbs_minus_1[i], tile_height_sb - 1);
653
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 2554 infer(height_in_sbs_minus_1[i],
654 sb_rows - (current->tile_rows - 1) * tile_height_sb - 1);
655
656 } else {
657 int widest_tile_sb, start_sb, size_sb, max_width, max_height;
658
659 158 widest_tile_sb = 0;
660
661 158 start_sb = 0;
662
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 316 for (i = 0; start_sb < sb_cols && i < AV1_MAX_TILE_COLS; i++) {
663 158 current->tile_start_col_sb[i] = start_sb;
664 158 max_width = FFMIN(sb_cols - start_sb, max_tile_width_sb);
665
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 158 ns(max_width, width_in_sbs_minus_1[i], 1, i);
666 158 size_sb = current->width_in_sbs_minus_1[i] + 1;
667 158 widest_tile_sb = FFMAX(size_sb, widest_tile_sb);
668 158 start_sb += size_sb;
669 }
670 158 current->tile_cols_log2 = cbs_av1_tile_log2(1, i);
671 158 current->tile_cols = i;
672
673
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 158 if (min_log2_tiles > 0)
674 ✗ max_tile_area_sb = (sb_rows * sb_cols) >> (min_log2_tiles + 1);
675 else
676 158 max_tile_area_sb = sb_rows * sb_cols;
677 158 max_tile_height_sb = FFMAX(max_tile_area_sb / widest_tile_sb, 1);
678
679 158 start_sb = 0;
680
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 790 for (i = 0; start_sb < sb_rows && i < AV1_MAX_TILE_ROWS; i++) {
681 632 current->tile_start_row_sb[i] = start_sb;
682 632 max_height = FFMIN(sb_rows - start_sb, max_tile_height_sb);
683
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 632 ns(max_height, height_in_sbs_minus_1[i], 1, i);
684 632 size_sb = current->height_in_sbs_minus_1[i] + 1;
685 632 start_sb += size_sb;
686 }
687 158 current->tile_rows_log2 = cbs_av1_tile_log2(1, i);
688 158 current->tile_rows = i;
689 }
690
691
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 2712 if (current->tile_cols_log2 > 0 ||
692
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 2394 current->tile_rows_log2 > 0) {
693
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 476 fb(current->tile_cols_log2 + current->tile_rows_log2,
694 context_update_tile_id);
695
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 476 fb(2, tile_size_bytes_minus1);
696 } else {
697
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 2236 infer(context_update_tile_id, 0);
698 }
699
700 2712 priv->tile_cols = current->tile_cols;
701 2712 priv->tile_rows = current->tile_rows;
702
703 2712 return 0;
704 }
705
706 2712 static int FUNC(quantization_params)(CodedBitstreamContext *ctx, RWContext *rw,
707 AV1RawFrameHeader *current)
708 {
709 2712 CodedBitstreamAV1Context *priv = ctx->priv_data;
710 2712 const AV1RawSequenceHeader *seq = priv->sequence_header;
711 int err;
712
713
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 2712 fb(8, base_q_idx);
714
715
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 2712 delta_q(delta_q_y_dc);
716
717
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 2712 if (priv->num_planes > 1) {
718
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 2712 if (seq->color_config.separate_uv_delta_q)
719 ✗ flag(diff_uv_delta);
720 else
721
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 2712 infer(diff_uv_delta, 0);
722
723
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 2712 delta_q(delta_q_u_dc);
724
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 2712 delta_q(delta_q_u_ac);
725
726
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 2712 if (current->diff_uv_delta) {
727 ✗ delta_q(delta_q_v_dc);
728 ✗ delta_q(delta_q_v_ac);
729 } else {
730
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 2712 infer(delta_q_v_dc, current->delta_q_u_dc);
731
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 2712 infer(delta_q_v_ac, current->delta_q_u_ac);
732 }
733 } else {
734 ✗ infer(delta_q_u_dc, 0);
735 ✗ infer(delta_q_u_ac, 0);
736 ✗ infer(delta_q_v_dc, 0);
737 ✗ infer(delta_q_v_ac, 0);
738 }
739
740
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 2712 flag(using_qmatrix);
741
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 2712 if (current->using_qmatrix) {
742 ✗ fb(4, qm_y);
743 ✗ fb(4, qm_u);
744 ✗ if (seq->color_config.separate_uv_delta_q)
745 ✗ fb(4, qm_v);
746 else
747 ✗ infer(qm_v, current->qm_u);
748 }
749
750 2712 return 0;
751 }
752
753 2712 static int FUNC(segmentation_params)(CodedBitstreamContext *ctx, RWContext *rw,
754 AV1RawFrameHeader *current)
755 {
756 2712 CodedBitstreamAV1Context *priv = ctx->priv_data;
757 static const uint8_t bits[AV1_SEG_LVL_MAX] = { 8, 6, 6, 6, 6, 3, 0, 0 };
758 static const uint8_t sign[AV1_SEG_LVL_MAX] = { 1, 1, 1, 1, 1, 0, 0, 0 };
759 static const uint8_t default_feature_enabled[AV1_SEG_LVL_MAX] = { 0 };
760 static const int16_t default_feature_value[AV1_SEG_LVL_MAX] = { 0 };
761 int i, j, err;
762
763
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 2712 flag(segmentation_enabled);
764
765
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 2712 if (current->segmentation_enabled) {
766 ✗ if (current->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
767 ✗ infer(segmentation_update_map, 1);
768 ✗ infer(segmentation_temporal_update, 0);
769 ✗ infer(segmentation_update_data, 1);
770 } else {
771 ✗ flag(segmentation_update_map);
772 ✗ if (current->segmentation_update_map)
773 ✗ flag(segmentation_temporal_update);
774 else
775 ✗ infer(segmentation_temporal_update, 0);
776 ✗ flag(segmentation_update_data);
777 }
778
779 ✗ for (i = 0; i < AV1_MAX_SEGMENTS; i++) {
780 const uint8_t *ref_feature_enabled;
781 const int16_t *ref_feature_value;
782
783 ✗ if (current->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
784 ✗ ref_feature_enabled = default_feature_enabled;
785 ✗ ref_feature_value = default_feature_value;
786 } else {
787 ✗ ref_feature_enabled =
788 ✗ priv->ref[current->ref_frame_idx[current->primary_ref_frame]].feature_enabled[i];
789 ✗ ref_feature_value =
790 ✗ priv->ref[current->ref_frame_idx[current->primary_ref_frame]].feature_value[i];
791 }
792
793 ✗ for (j = 0; j < AV1_SEG_LVL_MAX; j++) {
794 ✗ if (current->segmentation_update_data) {
795 ✗ flags(feature_enabled[i][j], 2, i, j);
796
797 ✗ if (current->feature_enabled[i][j] && bits[j] > 0) {
798 ✗ if (sign[j])
799 ✗ sus(1 + bits[j], feature_value[i][j], 2, i, j);
800 else
801 ✗ fbs(bits[j], feature_value[i][j], 2, i, j);
802 } else {
803 ✗ infer(feature_value[i][j], 0);
804 }
805 } else {
806 ✗ infer(feature_enabled[i][j], ref_feature_enabled[j]);
807 ✗ infer(feature_value[i][j], ref_feature_value[j]);
808 }
809 }
810 }
811 } else {
812
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 24408 for (i = 0; i < AV1_MAX_SEGMENTS; i++) {
813
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 195264 for (j = 0; j < AV1_SEG_LVL_MAX; j++) {
814
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 173568 infer(feature_enabled[i][j], 0);
815
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 173568 infer(feature_value[i][j], 0);
816 }
817 }
818 }
819
820 2712 return 0;
821 }
822
823 2712 static int FUNC(delta_q_params)(CodedBitstreamContext *ctx, RWContext *rw,
824 AV1RawFrameHeader *current)
825 {
826 int err;
827
828
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 2712 if (current->base_q_idx > 0)
829
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 2712 flag(delta_q_present);
830 else
831 ✗ infer(delta_q_present, 0);
832
833
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 2712 if (current->delta_q_present)
834
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 28 fb(2, delta_q_res);
835
836 2712 return 0;
837 }
838
839 2712 static int FUNC(delta_lf_params)(CodedBitstreamContext *ctx, RWContext *rw,
840 AV1RawFrameHeader *current)
841 {
842 int err;
843
844
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 2712 if (current->delta_q_present) {
845
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 28 if (!current->allow_intrabc)
846
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 28 flag(delta_lf_present);
847 else
848 ✗ infer(delta_lf_present, 0);
849
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 28 if (current->delta_lf_present) {
850 ✗ fb(2, delta_lf_res);
851 ✗ flag(delta_lf_multi);
852 } else {
853
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 28 infer(delta_lf_res, 0);
854
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 28 infer(delta_lf_multi, 0);
855 }
856 } else {
857
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 2684 infer(delta_lf_present, 0);
858
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 2684 infer(delta_lf_res, 0);
859
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 2684 infer(delta_lf_multi, 0);
860 }
861
862 2712 return 0;
863 }
864
865 2712 static int FUNC(loop_filter_params)(CodedBitstreamContext *ctx, RWContext *rw,
866 AV1RawFrameHeader *current)
867 {
868 2712 CodedBitstreamAV1Context *priv = ctx->priv_data;
869 static const int8_t default_loop_filter_ref_deltas[AV1_TOTAL_REFS_PER_FRAME] =
870 { 1, 0, 0, 0, -1, 0, -1, -1 };
871 static const int8_t default_loop_filter_mode_deltas[2] = { 0, 0 };
872 int i, err;
873
874
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 2712 if (priv->coded_lossless || current->allow_intrabc) {
875 ✗ infer(loop_filter_level[0], 0);
876 ✗ infer(loop_filter_level[1], 0);
877 ✗ infer(loop_filter_ref_deltas[AV1_REF_FRAME_INTRA], 1);
878 ✗ infer(loop_filter_ref_deltas[AV1_REF_FRAME_LAST], 0);
879 ✗ infer(loop_filter_ref_deltas[AV1_REF_FRAME_LAST2], 0);
880 ✗ infer(loop_filter_ref_deltas[AV1_REF_FRAME_LAST3], 0);
881 ✗ infer(loop_filter_ref_deltas[AV1_REF_FRAME_BWDREF], 0);
882 ✗ infer(loop_filter_ref_deltas[AV1_REF_FRAME_GOLDEN], -1);
883 ✗ infer(loop_filter_ref_deltas[AV1_REF_FRAME_ALTREF], -1);
884 ✗ infer(loop_filter_ref_deltas[AV1_REF_FRAME_ALTREF2], -1);
885 ✗ for (i = 0; i < 2; i++)
886 ✗ infer(loop_filter_mode_deltas[i], 0);
887 ✗ return 0;
888 }
889
890
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 2712 fb(6, loop_filter_level[0]);
891
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 2712 fb(6, loop_filter_level[1]);
892
893
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 2712 if (priv->num_planes > 1) {
894
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 2712 if (current->loop_filter_level[0] ||
895
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 1284 current->loop_filter_level[1]) {
896
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 1460 fb(6, loop_filter_level[2]);
897
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 1460 fb(6, loop_filter_level[3]);
898 }
899 }
900
901
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 2712 fb(3, loop_filter_sharpness);
902
903
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 2712 flag(loop_filter_delta_enabled);
904
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 2712 if (current->loop_filter_delta_enabled) {
905 const int8_t *ref_loop_filter_ref_deltas, *ref_loop_filter_mode_deltas;
906
907
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 2712 if (current->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
908 720 ref_loop_filter_ref_deltas = default_loop_filter_ref_deltas;
909 720 ref_loop_filter_mode_deltas = default_loop_filter_mode_deltas;
910 } else {
911 1992 ref_loop_filter_ref_deltas =
912 1992 priv->ref[current->ref_frame_idx[current->primary_ref_frame]].loop_filter_ref_deltas;
913 1992 ref_loop_filter_mode_deltas =
914 1992 priv->ref[current->ref_frame_idx[current->primary_ref_frame]].loop_filter_mode_deltas;
915 }
916
917
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 2712 flag(loop_filter_delta_update);
918
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 24408 for (i = 0; i < AV1_TOTAL_REFS_PER_FRAME; i++) {
919
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 21696 if (current->loop_filter_delta_update)
920
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 5760 flags(update_ref_delta[i], 1, i);
921 else
922
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 15936 infer(update_ref_delta[i], 0);
923
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 21696 if (current->update_ref_delta[i])
924 ✗ sus(1 + 6, loop_filter_ref_deltas[i], 1, i);
925 else
926
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 21696 infer(loop_filter_ref_deltas[i], ref_loop_filter_ref_deltas[i]);
927 }
928
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 8136 for (i = 0; i < 2; i++) {
929
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 5424 if (current->loop_filter_delta_update)
930
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 1440 flags(update_mode_delta[i], 1, i);
931 else
932
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 3984 infer(update_mode_delta[i], 0);
933
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 5424 if (current->update_mode_delta[i])
934 ✗ sus(1 + 6, loop_filter_mode_deltas[i], 1, i);
935 else
936
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 5424 infer(loop_filter_mode_deltas[i], ref_loop_filter_mode_deltas[i]);
937 }
938 } else {
939 ✗ for (i = 0; i < AV1_TOTAL_REFS_PER_FRAME; i++)
940 ✗ infer(loop_filter_ref_deltas[i], default_loop_filter_ref_deltas[i]);
941 ✗ for (i = 0; i < 2; i++)
942 ✗ infer(loop_filter_mode_deltas[i], default_loop_filter_mode_deltas[i]);
943 }
944
945 2712 return 0;
946 }
947
948 2712 static int FUNC(cdef_params)(CodedBitstreamContext *ctx, RWContext *rw,
949 AV1RawFrameHeader *current)
950 {
951 2712 CodedBitstreamAV1Context *priv = ctx->priv_data;
952 2712 const AV1RawSequenceHeader *seq = priv->sequence_header;
953 int i, err;
954
955
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 2712 if (priv->coded_lossless || current->allow_intrabc ||
956
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 2712 !seq->enable_cdef) {
957
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 262 infer(cdef_damping_minus_3, 0);
958
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 262 infer(cdef_bits, 0);
959
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 262 infer(cdef_y_pri_strength[0], 0);
960
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 262 infer(cdef_y_sec_strength[0], 0);
961
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 262 infer(cdef_uv_pri_strength[0], 0);
962
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 262 infer(cdef_uv_sec_strength[0], 0);
963
964 262 return 0;
965 }
966
967
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 2450 fb(2, cdef_damping_minus_3);
968
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 2450 fb(2, cdef_bits);
969
970
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 11872 for (i = 0; i < (1 << current->cdef_bits); i++) {
971
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 9422 fbs(4, cdef_y_pri_strength[i], 1, i);
972
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 9422 fbs(2, cdef_y_sec_strength[i], 1, i);
973
974
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 9422 if (priv->num_planes > 1) {
975
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 9422 fbs(4, cdef_uv_pri_strength[i], 1, i);
976
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 9422 fbs(2, cdef_uv_sec_strength[i], 1, i);
977 }
978 }
979
980 2450 return 0;
981 }
982
983 2712 static int FUNC(lr_params)(CodedBitstreamContext *ctx, RWContext *rw,
984 AV1RawFrameHeader *current)
985 {
986 2712 CodedBitstreamAV1Context *priv = ctx->priv_data;
987 2712 const AV1RawSequenceHeader *seq = priv->sequence_header;
988 int uses_lr, uses_chroma_lr;
989 int i, err;
990
991
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 2712 if (priv->all_lossless || current->allow_intrabc ||
992
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 2712 !seq->enable_restoration) {
993 194 return 0;
994 }
995
996 2518 uses_lr = uses_chroma_lr = 0;
997
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 10072 for (i = 0; i < priv->num_planes; i++) {
998
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 7554 fbs(2, lr_type[i], 1, i);
999
1000
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 7554 if (current->lr_type[i] != AV1_RESTORE_NONE) {
1001 1910 uses_lr = 1;
1002
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 1910 if (i > 0)
1003 708 uses_chroma_lr = 1;
1004 }
1005 }
1006
1007
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 2518 if (uses_lr) {
1008
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 1330 if (seq->use_128x128_superblock)
1009
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 768 increment(lr_unit_shift, 1, 2);
1010 else
1011
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 562 increment(lr_unit_shift, 0, 2);
1012
1013
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 1330 if(seq->color_config.subsampling_x &&
1014
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 1330 seq->color_config.subsampling_y && uses_chroma_lr) {
1015
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 456 fb(1, lr_uv_shift);
1016 } else {
1017
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 874 infer(lr_uv_shift, 0);
1018 }
1019 }
1020
1021 2518 return 0;
1022 }
1023
1024 2712 static int FUNC(read_tx_mode)(CodedBitstreamContext *ctx, RWContext *rw,
1025 AV1RawFrameHeader *current)
1026 {
1027 2712 CodedBitstreamAV1Context *priv = ctx->priv_data;
1028 int err;
1029
1030
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 2712 if (priv->coded_lossless)
1031 ✗ infer(tx_mode, AV1_ONLY_4X4);
1032 else
1033
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 2712 increment(tx_mode, AV1_TX_MODE_LARGEST, AV1_TX_MODE_SELECT);
1034
1035 2712 return 0;
1036 }
1037
1038 2712 static int FUNC(frame_reference_mode)(CodedBitstreamContext *ctx, RWContext *rw,
1039 AV1RawFrameHeader *current)
1040 {
1041 int err;
1042
1043
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 2712 if (current->frame_type == AV1_FRAME_INTRA_ONLY ||
1044
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 2712 current->frame_type == AV1_FRAME_KEY)
1045
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 412 infer(reference_select, 0);
1046 else
1047
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 2300 flag(reference_select);
1048
1049 2712 return 0;
1050 }
1051
1052 2712 static int FUNC(skip_mode_params)(CodedBitstreamContext *ctx, RWContext *rw,
1053 AV1RawFrameHeader *current)
1054 {
1055 2712 CodedBitstreamAV1Context *priv = ctx->priv_data;
1056 2712 const AV1RawSequenceHeader *seq = priv->sequence_header;
1057 int skip_mode_allowed;
1058 int err;
1059
1060
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 2712 if (current->frame_type == AV1_FRAME_KEY ||
1061
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 2300 current->frame_type == AV1_FRAME_INTRA_ONLY ||
1062
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 2300 !current->reference_select || !seq->enable_order_hint) {
1063 1338 skip_mode_allowed = 0;
1064 } else {
1065 int forward_idx, backward_idx;
1066 int forward_hint, backward_hint;
1067 int ref_hint, dist, i;
1068
1069 1374 forward_idx = -1;
1070 1374 backward_idx = -1;
1071
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 10992 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
1072 9618 ref_hint = priv->ref[current->ref_frame_idx[i]].order_hint;
1073 9618 dist = cbs_av1_get_relative_dist(seq, ref_hint,
1074 9618 priv->order_hint);
1075
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 9618 if (dist < 0) {
1076
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 15214 if (forward_idx < 0 ||
1077 6920 cbs_av1_get_relative_dist(seq, ref_hint,
1078 forward_hint) > 0) {
1079 1566 forward_idx = i;
1080 1566 forward_hint = ref_hint;
1081 }
1082
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 1324 } else if (dist > 0) {
1083
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 1826 if (backward_idx < 0 ||
1084 568 cbs_av1_get_relative_dist(seq, ref_hint,
1085 backward_hint) < 0) {
1086 690 backward_idx = i;
1087 690 backward_hint = ref_hint;
1088 }
1089 }
1090 }
1091
1092
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 1374 if (forward_idx < 0) {
1093 ✗ skip_mode_allowed = 0;
1094
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 1374 } else if (backward_idx >= 0) {
1095 690 skip_mode_allowed = 1;
1096 // Frames for skip mode are forward_idx and backward_idx.
1097 } else {
1098 int second_forward_idx;
1099 int second_forward_hint;
1100
1101 684 second_forward_idx = -1;
1102
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 5472 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
1103 4788 ref_hint = priv->ref[current->ref_frame_idx[i]].order_hint;
1104
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 4788 if (cbs_av1_get_relative_dist(seq, ref_hint,
1105 forward_hint) < 0) {
1106
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 7046 if (second_forward_idx < 0 ||
1107 3194 cbs_av1_get_relative_dist(seq, ref_hint,
1108 second_forward_hint) > 0) {
1109 698 second_forward_idx = i;
1110 698 second_forward_hint = ref_hint;
1111 }
1112 }
1113 }
1114
1115
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 684 if (second_forward_idx < 0) {
1116 26 skip_mode_allowed = 0;
1117 } else {
1118 658 skip_mode_allowed = 1;
1119 // Frames for skip mode are forward_idx and second_forward_idx.
1120 }
1121 }
1122 }
1123
1124
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 2712 if (skip_mode_allowed)
1125
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 1348 flag(skip_mode_present);
1126 else
1127
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 1364 infer(skip_mode_present, 0);
1128
1129 2712 return 0;
1130 }
1131
1132 488 static int FUNC(global_motion_param)(CodedBitstreamContext *ctx, RWContext *rw,
1133 AV1RawFrameHeader *current,
1134 int type, int ref, int idx)
1135 {
1136 uint32_t abs_bits, prec_bits, num_syms;
1137 int err;
1138
1139
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 488 if (idx < 2) {
1140
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 244 if (type == AV1_WARP_MODEL_TRANSLATION) {
1141 ✗ abs_bits = AV1_GM_ABS_TRANS_ONLY_BITS - !current->allow_high_precision_mv;
1142 ✗ prec_bits = AV1_GM_TRANS_ONLY_PREC_BITS - !current->allow_high_precision_mv;
1143 } else {
1144 244 abs_bits = AV1_GM_ABS_TRANS_BITS;
1145 244 prec_bits = AV1_GM_TRANS_PREC_BITS;
1146 }
1147 } else {
1148 244 abs_bits = AV1_GM_ABS_ALPHA_BITS;
1149 244 prec_bits = AV1_GM_ALPHA_PREC_BITS;
1150 }
1151
1152 488 num_syms = 2 * (1 << abs_bits) + 1;
1153
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 488 subexp(gm_params[ref][idx], num_syms, 2, ref, idx);
1154
1155 // Actual gm_params value is not reconstructed here.
1156 (void)prec_bits;
1157
1158 488 return 0;
1159 }
1160
1161 2712 static int FUNC(global_motion_params)(CodedBitstreamContext *ctx, RWContext *rw,
1162 AV1RawFrameHeader *current)
1163 {
1164 int ref, type;
1165 int err;
1166
1167
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 2712 if (current->frame_type == AV1_FRAME_KEY ||
1168
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 2300 current->frame_type == AV1_FRAME_INTRA_ONLY)
1169 412 return 0;
1170
1171
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 18400 for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
1172
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 16100 flags(is_global[ref], 1, ref);
1173
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 16100 if (current->is_global[ref]) {
1174
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 122 flags(is_rot_zoom[ref], 1, ref);
1175
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 122 if (current->is_rot_zoom[ref]) {
1176 122 type = AV1_WARP_MODEL_ROTZOOM;
1177 } else {
1178 ✗ flags(is_translation[ref], 1, ref);
1179 ✗ type = current->is_translation[ref] ? AV1_WARP_MODEL_TRANSLATION
1180 ✗ : AV1_WARP_MODEL_AFFINE;
1181 }
1182 } else {
1183 15978 type = AV1_WARP_MODEL_IDENTITY;
1184 }
1185
1186
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 16100 if (type >= AV1_WARP_MODEL_ROTZOOM) {
1187
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 122 CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 2));
1188
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 122 CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 3));
1189
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 122 if (type == AV1_WARP_MODEL_AFFINE) {
1190 ✗ CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 4));
1191 ✗ CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 5));
1192 } else {
1193 // gm_params[ref][4] = -gm_params[ref][3]
1194 // gm_params[ref][5] = gm_params[ref][2]
1195 }
1196 }
1197
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 16100 if (type >= AV1_WARP_MODEL_TRANSLATION) {
1198
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 122 CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 0));
1199
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 122 CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 1));
1200 }
1201 }
1202
1203 2300 return 0;
1204 }
1205
1206 2712 static int FUNC(film_grain_params)(CodedBitstreamContext *ctx, RWContext *rw,
1207 AV1RawFilmGrainParams *current,
1208 AV1RawFrameHeader *frame_header)
1209 {
1210 2712 CodedBitstreamAV1Context *priv = ctx->priv_data;
1211 2712 const AV1RawSequenceHeader *seq = priv->sequence_header;
1212 int num_pos_luma, num_pos_chroma;
1213 int i, err;
1214
1215
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 2712 if (!seq->film_grain_params_present ||
1216
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✓ Branch 3 taken 18 times.
 136 (!frame_header->show_frame && !frame_header->showable_frame))
1217 2588 return 0;
1218
1219
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 124 flag(apply_grain);
1220
1221
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 124 if (!current->apply_grain)
1222 ✗ return 0;
1223
1224
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 124 fb(16, grain_seed);
1225
1226
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 124 if (frame_header->frame_type == AV1_FRAME_INTER)
1227
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 108 flag(update_grain);
1228 else
1229
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 16 infer(update_grain, 1);
1230
1231
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 124 if (!current->update_grain) {
1232 ✗ fb(3, film_grain_params_ref_idx);
1233 ✗ return 0;
1234 }
1235
1236
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 124 fc(4, num_y_points, 0, 14);
1237
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 980 for (i = 0; i < current->num_y_points; i++) {
1238
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 856 fcs(8, point_y_value[i],
1239 i ? current->point_y_value[i - 1] + 1 : 0,
1240 MAX_UINT_BITS(8) - (current->num_y_points - i - 1),
1241 1, i);
1242
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 856 fbs(8, point_y_scaling[i], 1, i);
1243 }
1244
1245
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 124 if (seq->color_config.mono_chrome)
1246 ✗ infer(chroma_scaling_from_luma, 0);
1247 else
1248
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 124 flag(chroma_scaling_from_luma);
1249
1250
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 124 if (seq->color_config.mono_chrome ||
1251
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 124 current->chroma_scaling_from_luma ||
1252
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 124 (seq->color_config.subsampling_x == 1 &&
1253
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 124 seq->color_config.subsampling_y == 1 &&
1254
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 124 current->num_y_points == 0)) {
1255 ✗ infer(num_cb_points, 0);
1256 ✗ infer(num_cr_points, 0);
1257 } else {
1258
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 124 fc(4, num_cb_points, 0, 10);
1259
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 608 for (i = 0; i < current->num_cb_points; i++) {
1260
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 484 fcs(8, point_cb_value[i],
1261 i ? current->point_cb_value[i - 1] + 1 : 0,
1262 MAX_UINT_BITS(8) - (current->num_cb_points - i - 1),
1263 1, i);
1264
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 484 fbs(8, point_cb_scaling[i], 1, i);
1265 }
1266
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 124 fc(4, num_cr_points, 0, 10);
1267
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 620 for (i = 0; i < current->num_cr_points; i++) {
1268
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 496 fcs(8, point_cr_value[i],
1269 i ? current->point_cr_value[i - 1] + 1 : 0,
1270 MAX_UINT_BITS(8) - (current->num_cr_points - i - 1),
1271 1, i);
1272
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 496 fbs(8, point_cr_scaling[i], 1, i);
1273 }
1274 }
1275
1276
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 124 fb(2, grain_scaling_minus_8);
1277
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 124 fb(2, ar_coeff_lag);
1278 124 num_pos_luma = 2 * current->ar_coeff_lag * (current->ar_coeff_lag + 1);
1279
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 124 if (current->num_y_points) {
1280 124 num_pos_chroma = num_pos_luma + 1;
1281
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 3100 for (i = 0; i < num_pos_luma; i++)
1282
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 2976 fbs(8, ar_coeffs_y_plus_128[i], 1, i);
1283 } else {
1284 ✗ num_pos_chroma = num_pos_luma;
1285 }
1286
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 124 if (current->chroma_scaling_from_luma || current->num_cb_points) {
1287
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 3224 for (i = 0; i < num_pos_chroma; i++)
1288
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 3100 fbs(8, ar_coeffs_cb_plus_128[i], 1, i);
1289 }
1290
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 124 if (current->chroma_scaling_from_luma || current->num_cr_points) {
1291
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 3224 for (i = 0; i < num_pos_chroma; i++)
1292
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 3100 fbs(8, ar_coeffs_cr_plus_128[i], 1, i);
1293 }
1294
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 124 fb(2, ar_coeff_shift_minus_6);
1295
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 124 fb(2, grain_scale_shift);
1296
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 124 if (current->num_cb_points) {
1297
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 124 fb(8, cb_mult);
1298
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 124 fb(8, cb_luma_mult);
1299
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 124 fb(9, cb_offset);
1300 }
1301
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 124 if (current->num_cr_points) {
1302
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 124 fb(8, cr_mult);
1303
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 124 fb(8, cr_luma_mult);
1304
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 124 fb(9, cr_offset);
1305 }
1306
1307
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 124 flag(overlap_flag);
1308
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 124 flag(clip_to_restricted_range);
1309
1310 124 return 0;
1311 }
1312
1313 3030 static int FUNC(uncompressed_header)(CodedBitstreamContext *ctx, RWContext *rw,
1314 AV1RawFrameHeader *current)
1315 {
1316 3030 CodedBitstreamAV1Context *priv = ctx->priv_data;
1317 const AV1RawSequenceHeader *seq;
1318 int id_len, diff_len, all_frames, frame_is_intra, order_hint_bits;
1319 int i, err;
1320
1321
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 3030 if (!priv->sequence_header) {
1322 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "No sequence header available: "
1323 "unable to decode frame header.\n");
1324 ✗ return AVERROR_INVALIDDATA;
1325 }
1326 3030 seq = priv->sequence_header;
1327
1328 3030 id_len = seq->additional_frame_id_length_minus_1 +
1329 3030 seq->delta_frame_id_length_minus_2 + 3;
1330 3030 all_frames = (1 << AV1_NUM_REF_FRAMES) - 1;
1331
1332
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 3030 if (seq->reduced_still_picture_header) {
1333 ✗ infer(show_existing_frame, 0);
1334 ✗ infer(frame_type, AV1_FRAME_KEY);
1335 ✗ infer(show_frame, 1);
1336 ✗ infer(showable_frame, 0);
1337 ✗ frame_is_intra = 1;
1338
1339 } else {
1340
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 3030 flag(show_existing_frame);
1341
1342
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✓ Branch 1 taken 1356 times.
 3030 if (current->show_existing_frame) {
1343 AV1ReferenceFrameState *ref;
1344
1345
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 318 fb(3, frame_to_show_map_idx);
1346 318 ref = &priv->ref[current->frame_to_show_map_idx];
1347
1348
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 318 if (!ref->valid) {
1349 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Missing reference frame needed for "
1350 "show_existing_frame (frame_to_show_map_idx = %d).\n",
1351 ✗ current->frame_to_show_map_idx);
1352 ✗ return AVERROR_INVALIDDATA;
1353 }
1354
1355
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 318 if (seq->decoder_model_info_present_flag &&
1356
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✗ Branch 1 not taken.
 70 !seq->timing_info.equal_picture_interval) {
1357
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 70 fb(seq->decoder_model_info.frame_presentation_time_length_minus_1 + 1,
1358 frame_presentation_time);
1359 }
1360
1361
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 318 if (seq->frame_id_numbers_present_flag)
1362 ✗ fb(id_len, display_frame_id);
1363
1364
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 318 infer(frame_type, ref->frame_type);
1365
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 318 if (current->frame_type == AV1_FRAME_KEY) {
1366 ✗ infer(refresh_frame_flags, all_frames);
1367
1368 // Section 7.21
1369 ✗ infer(current_frame_id, ref->frame_id);
1370 ✗ priv->upscaled_width = ref->upscaled_width;
1371 ✗ priv->frame_width = ref->frame_width;
1372 ✗ priv->frame_height = ref->frame_height;
1373 ✗ priv->render_width = ref->render_width;
1374 ✗ priv->render_height = ref->render_height;
1375 ✗ priv->bit_depth = ref->bit_depth;
1376 ✗ priv->order_hint = ref->order_hint;
1377
1378 ✗ memcpy(priv->loop_filter_ref_deltas, ref->loop_filter_ref_deltas,
1379 sizeof(ref->loop_filter_ref_deltas));
1380 ✗ memcpy(priv->loop_filter_mode_deltas, ref->loop_filter_mode_deltas,
1381 sizeof(ref->loop_filter_mode_deltas));
1382 ✗ memcpy(priv->feature_enabled, ref->feature_enabled,
1383 sizeof(ref->feature_enabled));
1384 ✗ memcpy(priv->feature_value, ref->feature_value,
1385 sizeof(ref->feature_value));
1386 } else
1387
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 318 infer(refresh_frame_flags, 0);
1388
1389
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 318 infer(frame_width_minus_1, ref->upscaled_width - 1);
1390
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 318 infer(frame_height_minus_1, ref->frame_height - 1);
1391
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 318 infer(render_width_minus_1, ref->render_width - 1);
1392
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 318 infer(render_height_minus_1, ref->render_height - 1);
1393
1394 // Section 7.20
1395 318 goto update_refs;
1396 }
1397
1398
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 2712 fb(2, frame_type);
1399
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 5424 frame_is_intra = (current->frame_type == AV1_FRAME_INTRA_ONLY ||
1400
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 2712 current->frame_type == AV1_FRAME_KEY);
1401
1402
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 2712 flag(show_frame);
1403
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 2712 if (current->show_frame &&
1404
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✓ Branch 1 taken 708 times.
 2232 seq->decoder_model_info_present_flag &&
1405
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✗ Branch 1 not taken.
 816 !seq->timing_info.equal_picture_interval) {
1406
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 816 fb(seq->decoder_model_info.frame_presentation_time_length_minus_1 + 1,
1407 frame_presentation_time);
1408 }
1409
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✓ Branch 1 taken 240 times.
 2712 if (current->show_frame)
1410
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 2232 infer(showable_frame, current->frame_type != AV1_FRAME_KEY);
1411 else
1412
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 480 flag(showable_frame);
1413
1414
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✓ Branch 1 taken 3 times.
 2712 if (current->frame_type == AV1_FRAME_SWITCH ||
1415
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✗ Branch 3 not taken.
 2706 (current->frame_type == AV1_FRAME_KEY && current->show_frame))
1416
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 418 infer(error_resilient_mode, 1);
1417 else
1418
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 2294 flag(error_resilient_mode);
1419 }
1420
1421
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 2712 if (current->frame_type == AV1_FRAME_KEY && current->show_frame) {
1422
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✓ Branch 1 taken 206 times.
 3708 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
1423 3296 priv->ref[i].valid = 0;
1424 3296 priv->ref[i].order_hint = 0;
1425 }
1426
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 3296 for (i = 0; i < AV1_REFS_PER_FRAME; i++)
1427 2884 priv->order_hints[i + AV1_REF_FRAME_LAST] = 0;
1428 }
1429
1430
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 2712 flag(disable_cdf_update);
1431
1432
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 2712 if (seq->seq_force_screen_content_tools ==
1433 AV1_SELECT_SCREEN_CONTENT_TOOLS) {
1434
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 2712 flag(allow_screen_content_tools);
1435 } else {
1436 ✗ infer(allow_screen_content_tools,
1437 seq->seq_force_screen_content_tools);
1438 }
1439
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✓ Branch 1 taken 1322 times.
 2712 if (current->allow_screen_content_tools) {
1440
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✗ Branch 1 not taken.
 68 if (seq->seq_force_integer_mv == AV1_SELECT_INTEGER_MV)
1441
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 68 flag(force_integer_mv);
1442 else
1443 ✗ infer(force_integer_mv, seq->seq_force_integer_mv);
1444 } else {
1445
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 2644 infer(force_integer_mv, 0);
1446 }
1447
1448
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 2712 if (seq->frame_id_numbers_present_flag) {
1449 ✗ fb(id_len, current_frame_id);
1450
1451 ✗ diff_len = seq->delta_frame_id_length_minus_2 + 2;
1452 ✗ for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
1453 ✗ if (current->current_frame_id > (1 << diff_len)) {
1454 ✗ if (priv->ref[i].frame_id > current->current_frame_id ||
1455 ✗ priv->ref[i].frame_id < (current->current_frame_id -
1456 ✗ (1 << diff_len)))
1457 ✗ priv->ref[i].valid = 0;
1458 } else {
1459 ✗ if (priv->ref[i].frame_id > current->current_frame_id &&
1460 ✗ priv->ref[i].frame_id < ((1 << id_len) +
1461 ✗ current->current_frame_id -
1462 ✗ (1 << diff_len)))
1463 ✗ priv->ref[i].valid = 0;
1464 }
1465 }
1466 } else {
1467
1/2
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 2712 infer(current_frame_id, 0);
1468 }
1469
1470
2/2
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 2712 if (current->frame_type == AV1_FRAME_SWITCH)
1471
1/2
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 6 infer(frame_size_override_flag, 1);
1472
1/2
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 2706 else if(seq->reduced_still_picture_header)
1473 ✗ infer(frame_size_override_flag, 0);
1474 else
1475
1/2
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✓ Branch 2 taken 1353 times.
 2706 flag(frame_size_override_flag);
1476
1477 2712 order_hint_bits =
1478
1/2
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✗ Branch 1 not taken.
 2712 seq->enable_order_hint ? seq->order_hint_bits_minus_1 + 1 : 0;
1479
1/2
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✗ Branch 1 not taken.
 2712 if (order_hint_bits > 0)
1480
1/2
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 2712 fb(order_hint_bits, order_hint);
1481 else
1482 ✗ infer(order_hint, 0);
1483 2712 priv->order_hint = current->order_hint;
1484
1485
4/4
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✓ Branch 1 taken 206 times.
✓ Branch 2 taken 3 times.
✓ Branch 3 taken 1147 times.
 2712 if (frame_is_intra || current->error_resilient_mode)
1486
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 418 infer(primary_ref_frame, AV1_PRIMARY_REF_NONE);
1487 else
1488
1/2
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✓ Branch 2 taken 1147 times.
 2294 fb(3, primary_ref_frame);
1489
1490
2/2
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✓ Branch 1 taken 868 times.
 2712 if (seq->decoder_model_info_present_flag) {
1491
1/2
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 976 flag(buffer_removal_time_present_flag);
1492
1/2
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✗ Branch 1 not taken.
 976 if (current->buffer_removal_time_present_flag) {
1493
2/2
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✓ Branch 1 taken 488 times.
 1952 for (i = 0; i <= seq->operating_points_cnt_minus_1; i++) {
1494
1/2
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✗ Branch 1 not taken.
 976 if (seq->decoder_model_present_for_this_op[i]) {
1495 976 int op_pt_idc = seq->operating_point_idc[i];
1496 976 int in_temporal_layer = (op_pt_idc >> priv->temporal_id ) & 1;
1497 976 int in_spatial_layer = (op_pt_idc >> (priv->spatial_id + 8)) & 1;
1498
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✗ Branch 2 not taken.
✗ Branch 3 not taken.
 976 if (seq->operating_point_idc[i] == 0 ||
1499 ✗ (in_temporal_layer && in_spatial_layer)) {
1500
1/2
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✓ Branch 2 taken 488 times.
 976 fbs(seq->decoder_model_info.buffer_removal_time_length_minus_1 + 1,
1501 buffer_removal_time[i], 1, i);
1502 }
1503 }
1504 }
1505 }
1506 }
1507
1508
2/2
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✓ Branch 1 taken 3 times.
 2712 if (current->frame_type == AV1_FRAME_SWITCH ||
1509
3/4
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✓ Branch 1 taken 1147 times.
✓ Branch 2 taken 206 times.
✗ Branch 3 not taken.
 2706 (current->frame_type == AV1_FRAME_KEY && current->show_frame))
1510
1/2
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✓ Branch 1 taken 59 times.
 418 infer(refresh_frame_flags, all_frames);
1511 else
1512
1/2
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✓ Branch 2 taken 1147 times.
 2294 fb(8, refresh_frame_flags);
1513
1514
3/4
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✓ Branch 1 taken 1150 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 206 times.
 2712 if (!frame_is_intra || current->refresh_frame_flags != all_frames) {
1515
1/2
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✗ Branch 1 not taken.
 2300 if (seq->enable_order_hint) {
1516
2/2
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✓ Branch 1 taken 1150 times.
 20700 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
1517
2/2
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✓ Branch 1 taken 9176 times.
 18400 if (current->error_resilient_mode)
1518
1/2
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 48 fbs(order_hint_bits, ref_order_hint[i], 1, i);
1519 else
1520
1/2
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 18352 infer(ref_order_hint[i], priv->ref[i].order_hint);
1521
1/2
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✓ Branch 1 taken 9200 times.
 18400 if (current->ref_order_hint[i] != priv->ref[i].order_hint)
1522 ✗ priv->ref[i].valid = 0;
1523 }
1524 }
1525 }
1526
1527
2/2
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✓ Branch 1 taken 206 times.
 2712 if (current->frame_type == AV1_FRAME_KEY ||
1528
1/2
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 2300 current->frame_type == AV1_FRAME_INTRA_ONLY) {
1529
1/2
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 412 CHECK(FUNC(frame_size)(ctx, rw, current));
1530
1/2
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 412 CHECK(FUNC(render_size)(ctx, rw, current));
1531
1532
2/2
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✓ Branch 1 taken 202 times.
 412 if (current->allow_screen_content_tools &&
1533
1/2
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✗ Branch 1 not taken.
 8 priv->upscaled_width == priv->frame_width)
1534
1/2
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 8 flag(allow_intrabc);
1535 else
1536
1/2
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 404 infer(allow_intrabc, 0);
1537
1538 } else {
1539
1/2
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 2300 if (!seq->enable_order_hint) {
1540 ✗ infer(frame_refs_short_signaling, 0);
1541 } else {
1542
1/2
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✓ Branch 2 taken 1150 times.
 2300 flag(frame_refs_short_signaling);
1543
2/2
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✓ Branch 1 taken 1108 times.
 2300 if (current->frame_refs_short_signaling) {
1544
1/2
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✓ Branch 2 taken 42 times.
 84 fb(3, last_frame_idx);
1545
1/2
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✓ Branch 2 taken 42 times.
 84 fb(3, golden_frame_idx);
1546
1/2
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✓ Branch 2 taken 42 times.
 84 CHECK(FUNC(set_frame_refs)(ctx, rw, current));
1547 }
1548 }
1549
1550
2/2
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✓ Branch 1 taken 1150 times.
 18400 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
1551
2/2
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✓ Branch 1 taken 294 times.
 16100 if (!current->frame_refs_short_signaling)
1552
1/2
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✓ Branch 2 taken 7756 times.
 15512 fbs(3, ref_frame_idx[i], 1, i);
1553
1/2
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✓ Branch 1 taken 8050 times.
 16100 if (seq->frame_id_numbers_present_flag) {
1554 ✗ fbs(seq->delta_frame_id_length_minus_2 + 2,
1555 delta_frame_id_minus1[i], 1, i);
1556 }
1557 }
1558
1559
2/2
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✓ Branch 1 taken 1102 times.
 2300 if (current->frame_size_override_flag &&
1560
2/2
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✓ Branch 1 taken 3 times.
 96 !current->error_resilient_mode) {
1561
1/2
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 90 CHECK(FUNC(frame_size_with_refs)(ctx, rw, current));
1562 } else {
1563
1/2
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 2210 CHECK(FUNC(frame_size)(ctx, rw, current));
1564
1/2
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 2210 CHECK(FUNC(render_size)(ctx, rw, current));
1565 }
1566
1567
1/2
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 2300 if (current->force_integer_mv)
1568 ✗ infer(allow_high_precision_mv, 0);
1569 else
1570
1/2
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✓ Branch 2 taken 1150 times.
 2300 flag(allow_high_precision_mv);
1571
1572
1/2
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 2300 CHECK(FUNC(interpolation_filter)(ctx, rw, current));
1573
1574
1/2
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 2300 flag(is_motion_mode_switchable);
1575
1576
2/2
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✓ Branch 1 taken 3 times.
 2300 if (current->error_resilient_mode ||
1577
2/2
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✓ Branch 1 taken 1057 times.
 2294 !seq->enable_ref_frame_mvs)
1578
1/2
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✓ Branch 1 taken 31 times.
 186 infer(use_ref_frame_mvs, 0);
1579 else
1580
1/2
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✓ Branch 2 taken 1057 times.
 2114 flag(use_ref_frame_mvs);
1581
1582
2/2
✓ Branch 0 taken 8050 times.
✓ Branch 1 taken 1150 times.
 18400 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
1583 16100 int ref_frame = AV1_REF_FRAME_LAST + i;
1584 16100 int hint = priv->ref[current->ref_frame_idx[i]].order_hint;
1585 16100 priv->order_hints[ref_frame] = hint;
1586
1/2
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 16100 if (!seq->enable_order_hint) {
1587 ✗ priv->ref_frame_sign_bias[ref_frame] = 0;
1588 } else {
1589 16100 priv->ref_frame_sign_bias[ref_frame] =
1590 16100 cbs_av1_get_relative_dist(seq, hint,
1591 16100 current->order_hint) > 0;
1592 }
1593 }
1594
1595
1/2
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 2300 infer(allow_intrabc, 0);
1596 }
1597
1598
2/4
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✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 1356 times.
 2712 if (seq->reduced_still_picture_header || current->disable_cdf_update)
1599 ✗ infer(disable_frame_end_update_cdf, 1);
1600 else
1601
1/2
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✓ Branch 2 taken 1356 times.
 2712 flag(disable_frame_end_update_cdf);
1602
1603 2712 if (current->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
1604 // Init non-coeff CDFs.
1605 // Setup past independence.
1606 } else {
1607 // Load CDF tables from previous frame.
1608 // Load params from previous frame.
1609 }
1610
1611 2712 if (current->use_ref_frame_mvs) {
1612 // Perform motion field estimation process.
1613 }
1614
1615
1/2
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 2712 CHECK(FUNC(tile_info)(ctx, rw, current));
1616
1617
1/2
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 2712 CHECK(FUNC(quantization_params)(ctx, rw, current));
1618
1619
1/2
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 2712 CHECK(FUNC(segmentation_params)(ctx, rw, current));
1620
1621
1/2
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 2712 CHECK(FUNC(delta_q_params)(ctx, rw, current));
1622
1623
1/2
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 2712 CHECK(FUNC(delta_lf_params)(ctx, rw, current));
1624
1625 // Init coeff CDFs / load previous segments.
1626
1627 2712 priv->coded_lossless = 1;
1628
2/2
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✓ Branch 1 taken 1356 times.
 24408 for (i = 0; i < AV1_MAX_SEGMENTS; i++) {
1629 int qindex;
1630
1/2
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✓ Branch 1 taken 10848 times.
 21696 if (current->feature_enabled[i][AV1_SEG_LVL_ALT_Q]) {
1631 ✗ qindex = (current->base_q_idx +
1632 ✗ current->feature_value[i][AV1_SEG_LVL_ALT_Q]);
1633 } else {
1634 21696 qindex = current->base_q_idx;
1635 }
1636 21696 qindex = av_clip_uintp2(qindex, 8);
1637
1638
1/4
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✗ Branch 2 not taken.
✗ Branch 3 not taken.
 21696 if (qindex || current->delta_q_y_dc ||
1639 ✗ current->delta_q_u_ac || current->delta_q_u_dc ||
1640 ✗ current->delta_q_v_ac || current->delta_q_v_dc) {
1641 21696 priv->coded_lossless = 0;
1642 }
1643 }
1644
1/2
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✓ Branch 1 taken 1356 times.
 2712 priv->all_lossless = priv->coded_lossless &&
1645 ✗ priv->frame_width == priv->upscaled_width;
1646
1647
1/2
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✓ Branch 2 taken 1356 times.
 2712 CHECK(FUNC(loop_filter_params)(ctx, rw, current));
1648
1649
1/2
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 2712 CHECK(FUNC(cdef_params)(ctx, rw, current));
1650
1651
1/2
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 2712 CHECK(FUNC(lr_params)(ctx, rw, current));
1652
1653
1/2
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✓ Branch 2 taken 1356 times.
 2712 CHECK(FUNC(read_tx_mode)(ctx, rw, current));
1654
1655
1/2
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✓ Branch 2 taken 1356 times.
 2712 CHECK(FUNC(frame_reference_mode)(ctx, rw, current));
1656
1657
1/2
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✓ Branch 2 taken 1356 times.
 2712 CHECK(FUNC(skip_mode_params)(ctx, rw, current));
1658
1659
4/4
✓ Branch 0 taken 1150 times.
✓ Branch 1 taken 206 times.
✓ Branch 2 taken 1147 times.
✓ Branch 3 taken 3 times.
 2712 if (frame_is_intra || current->error_resilient_mode ||
1660
1/2
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✓ Branch 1 taken 1147 times.
 2294 !seq->enable_warped_motion)
1661
1/2
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✓ Branch 1 taken 59 times.
 418 infer(allow_warped_motion, 0);
1662 else
1663
1/2
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✓ Branch 2 taken 1147 times.
 2294 flag(allow_warped_motion);
1664
1665
1/2
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✓ Branch 2 taken 1356 times.
 2712 flag(reduced_tx_set);
1666
1667
1/2
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 2712 CHECK(FUNC(global_motion_params)(ctx, rw, current));
1668
1669
1/2
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✓ Branch 2 taken 1356 times.
 2712 CHECK(FUNC(film_grain_params)(ctx, rw, &current->film_grain, current));
1670
1671 2712 av_log(ctx->log_ctx, AV_LOG_DEBUG, "Frame %d: size %dx%d "
1672 "upscaled %d render %dx%d subsample %dx%d "
1673 "bitdepth %d tiles %dx%d.\n", priv->order_hint,
1674 priv->frame_width, priv->frame_height, priv->upscaled_width,
1675 priv->render_width, priv->render_height,
1676 2712 seq->color_config.subsampling_x + 1,
1677 2712 seq->color_config.subsampling_y + 1, priv->bit_depth,
1678 priv->tile_rows, priv->tile_cols);
1679
1680 3030 update_refs:
1681
2/2
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✓ Branch 1 taken 1515 times.
 27270 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
1682
2/2
✓ Branch 0 taken 2778 times.
✓ Branch 1 taken 9342 times.
 24240 if (current->refresh_frame_flags & (1 << i)) {
1683 5556 priv->ref[i] = (AV1ReferenceFrameState) {
1684 .valid = 1,
1685 5556 .frame_id = current->current_frame_id,
1686 5556 .upscaled_width = priv->upscaled_width,
1687 5556 .frame_width = priv->frame_width,
1688 5556 .frame_height = priv->frame_height,
1689 5556 .render_width = priv->render_width,
1690 5556 .render_height = priv->render_height,
1691 5556 .frame_type = current->frame_type,
1692 5556 .subsampling_x = seq->color_config.subsampling_x,
1693 5556 .subsampling_y = seq->color_config.subsampling_y,
1694 5556 .bit_depth = priv->bit_depth,
1695 5556 .order_hint = priv->order_hint,
1696 };
1697
1698
2/2
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✓ Branch 1 taken 2778 times.
 44448 for (int j = 0; j < AV1_REFS_PER_FRAME; j++) {
1699 38892 priv->ref[i].saved_order_hints[j + AV1_REF_FRAME_LAST] =
1700 38892 priv->order_hints[j + AV1_REF_FRAME_LAST];
1701 }
1702
1703
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2778 times.
 5556 if (current->show_existing_frame) {
1704 ✗ memcpy(priv->ref[i].loop_filter_ref_deltas, priv->loop_filter_ref_deltas,
1705 sizeof(priv->loop_filter_ref_deltas));
1706 ✗ memcpy(priv->ref[i].loop_filter_mode_deltas, priv->loop_filter_mode_deltas,
1707 sizeof(priv->loop_filter_mode_deltas));
1708 ✗ memcpy(priv->ref[i].feature_enabled, priv->feature_enabled,
1709 sizeof(priv->feature_enabled));
1710 ✗ memcpy(priv->ref[i].feature_value, priv->feature_value,
1711 sizeof(priv->feature_value));
1712 } else {
1713 5556 memcpy(priv->ref[i].loop_filter_ref_deltas, current->loop_filter_ref_deltas,
1714 sizeof(current->loop_filter_ref_deltas));
1715 5556 memcpy(priv->ref[i].loop_filter_mode_deltas, current->loop_filter_mode_deltas,
1716 sizeof(current->loop_filter_mode_deltas));
1717 5556 memcpy(priv->ref[i].feature_enabled, current->feature_enabled,
1718 sizeof(current->feature_enabled));
1719 5556 memcpy(priv->ref[i].feature_value, current->feature_value,
1720 sizeof(current->feature_value));
1721 }
1722 }
1723 }
1724
1725 3030 return 0;
1726 }
1727
1728 3030 static int FUNC(frame_header_obu)(CodedBitstreamContext *ctx, RWContext *rw,
1729 AV1RawFrameHeader *current, int redundant,
1730 AVBufferRef *rw_buffer_ref)
1731 {
1732 3030 CodedBitstreamAV1Context *priv = ctx->priv_data;
1733 int start_pos, fh_bits, fh_bytes, err;
1734 uint8_t *fh_start;
1735
1736
1/2
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✓ Branch 1 taken 1515 times.
 3030 if (priv->seen_frame_header) {
1737 ✗ if (!redundant) {
1738 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid repeated "
1739 "frame header OBU.\n");
1740 ✗ return AVERROR_INVALIDDATA;
1741 } else {
1742 GetBitContext fh;
1743 size_t i, b;
1744 uint32_t val;
1745
1746 ✗ HEADER("Redundant Frame Header");
1747
1748 ✗ av_assert0(priv->frame_header_ref && priv->frame_header);
1749
1750 ✗ init_get_bits(&fh, priv->frame_header,
1751 ✗ priv->frame_header_size);
1752 ✗ for (i = 0; i < priv->frame_header_size; i += 8) {
1753 ✗ b = FFMIN(priv->frame_header_size - i, 8);
1754 ✗ val = get_bits(&fh, b);
1755 ✗ xf(b, frame_header_copy[i],
1756 val, val, val, 1, i / 8);
1757 }
1758 }
1759 } else {
1760
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1515 times.
 3030 if (redundant)
1761 ✗ HEADER("Redundant Frame Header (used as Frame Header)");
1762 else
1763 3030 HEADER("Frame Header");
1764
1765 #ifdef READ
1766 2188 start_pos = get_bits_count(rw);
1767 #else
1768 842 start_pos = put_bits_count(rw);
1769 #endif
1770
1771
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1515 times.
 3030 CHECK(FUNC(uncompressed_header)(ctx, rw, current));
1772
1773 3030 priv->tile_num = 0;
1774
1775
2/2
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✓ Branch 1 taken 1356 times.
 3030 if (current->show_existing_frame) {
1776 318 priv->seen_frame_header = 0;
1777 } else {
1778 2712 priv->seen_frame_header = 1;
1779
1780 2712 av_buffer_unref(&priv->frame_header_ref);
1781
1782 #ifdef READ
1783 1964 fh_bits = get_bits_count(rw) - start_pos;
1784 1964 fh_start = (uint8_t*)rw->buffer + start_pos / 8;
1785 #else
1786 // Need to flush the bitwriter so that we can copy its output,
1787 // but use a copy so we don't affect the caller's structure.
1788 {
1789 748 PutBitContext tmp = *rw;
1790 748 flush_put_bits(&tmp);
1791 }
1792
1793 748 fh_bits = put_bits_count(rw) - start_pos;
1794 748 fh_start = rw->buf + start_pos / 8;
1795 #endif
1796 2712 fh_bytes = (fh_bits + 7) / 8;
1797
1798 2712 priv->frame_header_size = fh_bits;
1799
1800
2/2
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✓ Branch 1 taken 374 times.
 2712 if (rw_buffer_ref) {
1801 1964 priv->frame_header_ref = av_buffer_ref(rw_buffer_ref);
1802
1/2
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✓ Branch 1 taken 982 times.
 1964 if (!priv->frame_header_ref)
1803 ✗ return AVERROR(ENOMEM);
1804 1964 priv->frame_header = fh_start;
1805 } else {
1806 748 priv->frame_header_ref =
1807 748 av_buffer_alloc(fh_bytes + AV_INPUT_BUFFER_PADDING_SIZE);
1808
1/2
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✓ Branch 1 taken 374 times.
 748 if (!priv->frame_header_ref)
1809 ✗ return AVERROR(ENOMEM);
1810 748 priv->frame_header = priv->frame_header_ref->data;
1811 748 memcpy(priv->frame_header, fh_start, fh_bytes);
1812 }
1813 }
1814 }
1815
1816 3030 return 0;
1817 }
1818
1819 3112 static int FUNC(tile_group_obu)(CodedBitstreamContext *ctx, RWContext *rw,
1820 AV1RawTileGroup *current)
1821 {
1822 3112 CodedBitstreamAV1Context *priv = ctx->priv_data;
1823 int num_tiles, tile_bits;
1824 int err;
1825
1826 3112 HEADER("Tile Group");
1827
1828 3112 num_tiles = priv->tile_cols * priv->tile_rows;
1829
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 3112 if (num_tiles > 1)
1830
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 876 flag(tile_start_and_end_present_flag);
1831 else
1832
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 2236 infer(tile_start_and_end_present_flag, 0);
1833
1834
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 3112 if (num_tiles == 1 || !current->tile_start_and_end_present_flag) {
1835
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 2462 infer(tg_start, 0);
1836
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 2462 infer(tg_end, num_tiles - 1);
1837 } else {
1838 650 tile_bits = cbs_av1_tile_log2(1, priv->tile_cols) +
1839 650 cbs_av1_tile_log2(1, priv->tile_rows);
1840
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 650 fc(tile_bits, tg_start, priv->tile_num, num_tiles - 1);
1841
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 650 fc(tile_bits, tg_end, current->tg_start, num_tiles - 1);
1842 }
1843
1844 3112 priv->tile_num = current->tg_end + 1;
1845
1846
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 3112 CHECK(FUNC(byte_alignment)(ctx, rw));
1847
1848 // Reset header for next frame.
1849
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 3112 if (current->tg_end == num_tiles - 1)
1850 2712 priv->seen_frame_header = 0;
1851
1852 // Tile data follows.
1853
1854 3112 return 0;
1855 }
1856
1857 2462 static int FUNC(frame_obu)(CodedBitstreamContext *ctx, RWContext *rw,
1858 AV1RawFrame *current,
1859 AVBufferRef *rw_buffer_ref)
1860 {
1861 int err;
1862
1863
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 2462 CHECK(FUNC(frame_header_obu)(ctx, rw, &current->header,
1864 0, rw_buffer_ref));
1865
1866
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 2462 CHECK(FUNC(byte_alignment)(ctx, rw));
1867
1868
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 2462 CHECK(FUNC(tile_group_obu)(ctx, rw, &current->tile_group));
1869
1870 2462 return 0;
1871 }
1872
1873 ✗ static int FUNC(tile_list_obu)(CodedBitstreamContext *ctx, RWContext *rw,
1874 AV1RawTileList *current)
1875 {
1876 int err;
1877
1878 ✗ fb(8, output_frame_width_in_tiles_minus_1);
1879 ✗ fb(8, output_frame_height_in_tiles_minus_1);
1880
1881 ✗ fb(16, tile_count_minus_1);
1882
1883 // Tile data follows.
1884
1885 ✗ return 0;
1886 }
1887
1888 28 static int FUNC(metadata_hdr_cll)(CodedBitstreamContext *ctx, RWContext *rw,
1889 AV1RawMetadataHDRCLL *current)
1890 {
1891 int err;
1892
1893 28 HEADER("HDR CLL Metadata");
1894
1895
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 28 fb(16, max_cll);
1896
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 28 fb(16, max_fall);
1897
1898 28 return 0;
1899 }
1900
1901 28 static int FUNC(metadata_hdr_mdcv)(CodedBitstreamContext *ctx, RWContext *rw,
1902 AV1RawMetadataHDRMDCV *current)
1903 {
1904 int err, i;
1905
1906 28 HEADER("HDR MDCV Metadata");
1907
1908
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 112 for (i = 0; i < 3; i++) {
1909
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 84 fbs(16, primary_chromaticity_x[i], 1, i);
1910
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 84 fbs(16, primary_chromaticity_y[i], 1, i);
1911 }
1912
1913
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 28 fb(16, white_point_chromaticity_x);
1914
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 28 fb(16, white_point_chromaticity_y);
1915
1916
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 28 fb(32, luminance_max);
1917
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 28 fb(32, luminance_min);
1918
1919 28 return 0;
1920 }
1921
1922 ✗ static int FUNC(scalability_structure)(CodedBitstreamContext *ctx, RWContext *rw,
1923 AV1RawMetadataScalability *current)
1924 {
1925 ✗ CodedBitstreamAV1Context *priv = ctx->priv_data;
1926 const AV1RawSequenceHeader *seq;
1927 int err, i, j;
1928
1929 ✗ if (!priv->sequence_header) {
1930 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "No sequence header available: "
1931 "unable to parse scalability metadata.\n");
1932 ✗ return AVERROR_INVALIDDATA;
1933 }
1934 ✗ seq = priv->sequence_header;
1935
1936 ✗ fb(2, spatial_layers_cnt_minus_1);
1937 ✗ flag(spatial_layer_dimensions_present_flag);
1938 ✗ flag(spatial_layer_description_present_flag);
1939 ✗ flag(temporal_group_description_present_flag);
1940 ✗ fc(3, scalability_structure_reserved_3bits, 0, 0);
1941 ✗ if (current->spatial_layer_dimensions_present_flag) {
1942 ✗ for (i = 0; i <= current->spatial_layers_cnt_minus_1; i++) {
1943 ✗ fcs(16, spatial_layer_max_width[i],
1944 0, seq->max_frame_width_minus_1 + 1, 1, i);
1945 ✗ fcs(16, spatial_layer_max_height[i],
1946 0, seq->max_frame_height_minus_1 + 1, 1, i);
1947 }
1948 }
1949 ✗ if (current->spatial_layer_description_present_flag) {
1950 ✗ for (i = 0; i <= current->spatial_layers_cnt_minus_1; i++)
1951 ✗ fbs(8, spatial_layer_ref_id[i], 1, i);
1952 }
1953 ✗ if (current->temporal_group_description_present_flag) {
1954 ✗ fb(8, temporal_group_size);
1955 ✗ for (i = 0; i < current->temporal_group_size; i++) {
1956 ✗ fbs(3, temporal_group_temporal_id[i], 1, i);
1957 ✗ flags(temporal_group_temporal_switching_up_point_flag[i], 1, i);
1958 ✗ flags(temporal_group_spatial_switching_up_point_flag[i], 1, i);
1959 ✗ fbs(3, temporal_group_ref_cnt[i], 1, i);
1960 ✗ for (j = 0; j < current->temporal_group_ref_cnt[i]; j++) {
1961 ✗ fbs(8, temporal_group_ref_pic_diff[i][j], 2, i, j);
1962 }
1963 }
1964 }
1965
1966 ✗ return 0;
1967 }
1968
1969 ✗ static int FUNC(metadata_scalability)(CodedBitstreamContext *ctx, RWContext *rw,
1970 AV1RawMetadataScalability *current)
1971 {
1972 int err;
1973
1974 ✗ HEADER("Scalability Metadata");
1975
1976 ✗ fb(8, scalability_mode_idc);
1977
1978 ✗ if (current->scalability_mode_idc == AV1_SCALABILITY_SS)
1979 ✗ CHECK(FUNC(scalability_structure)(ctx, rw, current));
1980
1981 ✗ return 0;
1982 }
1983
1984 ✗ static int FUNC(metadata_itut_t35)(CodedBitstreamContext *ctx, RWContext *rw,
1985 AV1RawMetadataITUTT35 *current)
1986 {
1987 int err;
1988 size_t i;
1989
1990 ✗ HEADER("ITU-T T.35 Metadata");
1991
1992 ✗ fb(8, itu_t_t35_country_code);
1993 ✗ if (current->itu_t_t35_country_code == 0xff)
1994 ✗ fb(8, itu_t_t35_country_code_extension_byte);
1995
1996 #ifdef READ
1997 // The payload runs up to the start of the trailing bits, but there might
1998 // be arbitrarily many trailing zeroes so we need to read through twice.
1999 ✗ current->payload_size = cbs_av1_get_payload_bytes_left(rw);
2000
2001 ✗ current->payload_ref = av_buffer_alloc(current->payload_size);
2002 ✗ if (!current->payload_ref)
2003 ✗ return AVERROR(ENOMEM);
2004 ✗ current->payload = current->payload_ref->data;
2005 #endif
2006
2007 ✗ for (i = 0; i < current->payload_size; i++)
2008 ✗ xf(8, itu_t_t35_payload_bytes[i], current->payload[i],
2009 0x00, 0xff, 1, i);
2010
2011 ✗ return 0;
2012 }
2013
2014 ✗ static int FUNC(metadata_timecode)(CodedBitstreamContext *ctx, RWContext *rw,
2015 AV1RawMetadataTimecode *current)
2016 {
2017 int err;
2018
2019 ✗ HEADER("Timecode Metadata");
2020
2021 ✗ fb(5, counting_type);
2022 ✗ flag(full_timestamp_flag);
2023 ✗ flag(discontinuity_flag);
2024 ✗ flag(cnt_dropped_flag);
2025 ✗ fb(9, n_frames);
2026
2027 ✗ if (current->full_timestamp_flag) {
2028 ✗ fc(6, seconds_value, 0, 59);
2029 ✗ fc(6, minutes_value, 0, 59);
2030 ✗ fc(5, hours_value, 0, 23);
2031 } else {
2032 ✗ flag(seconds_flag);
2033 ✗ if (current->seconds_flag) {
2034 ✗ fc(6, seconds_value, 0, 59);
2035 ✗ flag(minutes_flag);
2036 ✗ if (current->minutes_flag) {
2037 ✗ fc(6, minutes_value, 0, 59);
2038 ✗ flag(hours_flag);
2039 ✗ if (current->hours_flag)
2040 ✗ fc(5, hours_value, 0, 23);
2041 }
2042 }
2043 }
2044
2045 ✗ fb(5, time_offset_length);
2046 ✗ if (current->time_offset_length > 0)
2047 ✗ fb(current->time_offset_length, time_offset_value);
2048 else
2049 ✗ infer(time_offset_length, 0);
2050
2051 ✗ return 0;
2052 }
2053
2054 ✗ static int FUNC(metadata_unknown)(CodedBitstreamContext *ctx, RWContext *rw,
2055 AV1RawMetadataUnknown *current)
2056 {
2057 int err;
2058 size_t i;
2059
2060 ✗ HEADER("Unknown Metadata");
2061
2062 #ifdef READ
2063 ✗ current->payload_size = cbs_av1_get_payload_bytes_left(rw);
2064
2065 ✗ current->payload_ref = av_buffer_alloc(current->payload_size);
2066 ✗ if (!current->payload_ref)
2067 ✗ return AVERROR(ENOMEM);
2068 ✗ current->payload = current->payload_ref->data;
2069 #endif
2070
2071 ✗ for (i = 0; i < current->payload_size; i++)
2072 ✗ fbs(8, payload[i], 1, i);
2073
2074 ✗ return 0;
2075 }
2076
2077 56 static int FUNC(metadata_obu)(CodedBitstreamContext *ctx, RWContext *rw,
2078 AV1RawMetadata *current)
2079 {
2080 int err;
2081
2082
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 56 leb128(metadata_type);
2083
2084
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 56 switch (current->metadata_type) {
2085 28 case AV1_METADATA_TYPE_HDR_CLL:
2086
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 28 CHECK(FUNC(metadata_hdr_cll)(ctx, rw, &current->metadata.hdr_cll));
2087 28 break;
2088 28 case AV1_METADATA_TYPE_HDR_MDCV:
2089
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 28 CHECK(FUNC(metadata_hdr_mdcv)(ctx, rw, &current->metadata.hdr_mdcv));
2090 28 break;
2091 ✗ case AV1_METADATA_TYPE_SCALABILITY:
2092 ✗ CHECK(FUNC(metadata_scalability)(ctx, rw, &current->metadata.scalability));
2093 ✗ break;
2094 ✗ case AV1_METADATA_TYPE_ITUT_T35:
2095 ✗ CHECK(FUNC(metadata_itut_t35)(ctx, rw, &current->metadata.itut_t35));
2096 ✗ break;
2097 ✗ case AV1_METADATA_TYPE_TIMECODE:
2098 ✗ CHECK(FUNC(metadata_timecode)(ctx, rw, &current->metadata.timecode));
2099 ✗ break;
2100 ✗ default:
2101 ✗ CHECK(FUNC(metadata_unknown)(ctx, rw, &current->metadata.unknown));
2102 }
2103
2104 56 return 0;
2105 }
2106
2107 ✗ static int FUNC(padding_obu)(CodedBitstreamContext *ctx, RWContext *rw,
2108 AV1RawPadding *current)
2109 {
2110 int i, err;
2111
2112 ✗ HEADER("Padding");
2113
2114 #ifdef READ
2115 // The payload runs up to the start of the trailing bits, but there might
2116 // be arbitrarily many trailing zeroes so we need to read through twice.
2117 ✗ current->payload_size = cbs_av1_get_payload_bytes_left(rw);
2118
2119 ✗ current->payload_ref = av_buffer_alloc(current->payload_size);
2120 ✗ if (!current->payload_ref)
2121 ✗ return AVERROR(ENOMEM);
2122 ✗ current->payload = current->payload_ref->data;
2123 #endif
2124
2125 ✗ for (i = 0; i < current->payload_size; i++)
2126 ✗ xf(8, obu_padding_byte[i], current->payload[i], 0x00, 0xff, 1, i);
2127
2128 ✗ return 0;
2129 }
2130