FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/cbs_av1_syntax_template.c
Date: 2021-09-16 08:47:15
Exec Total Coverage
Lines: 835 1138 73.4%
Branches: 707 1584 44.6%

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 14150 static int FUNC(obu_header)(CodedBitstreamContext *ctx, RWContext *rw,
20 AV1RawOBUHeader *current)
21 {
22 14150 CodedBitstreamAV1Context *priv = ctx->priv_data;
23 int err;
24
25 14150 HEADER("OBU header");
26
27
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14150 fc(1, obu_forbidden_bit, 0, 0);
28
29
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14150 fc(4, obu_type, 0, AV1_OBU_PADDING);
30
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14150 flag(obu_extension_flag);
31
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14150 flag(obu_has_size_field);
32
33
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14150 fc(1, obu_reserved_1bit, 0, 0);
34
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14150 if (current->obu_extension_flag) {
36
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1120 fb(3, temporal_id);
37
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1120 fb(2, spatial_id);
38
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1120 fc(3, extension_header_reserved_3bits, 0, 0);
39 } else {
40
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13030 infer(temporal_id, 0);
41
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13030 infer(spatial_id, 0);
42 }
43
44 14150 priv->temporal_id = current->temporal_id;
45 14150 priv->spatial_id = current->spatial_id;
46
47 14150 return 0;
48 }
49
50 1876 static int FUNC(trailing_bits)(CodedBitstreamContext *ctx, RWContext *rw, int nb_bits)
51 {
52 int err;
53
54
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1876 av_assert0(nb_bits > 0);
55
56
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1876 fixed(1, trailing_one_bit, 1);
57 1876 --nb_bits;
58
59
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10124 while (nb_bits > 0) {
60
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8248 fixed(1, trailing_zero_bit, 0);
61 8248 --nb_bits;
62 }
63
64 1876 return 0;
65 }
66
67 6212 static int FUNC(byte_alignment)(CodedBitstreamContext *ctx, RWContext *rw)
68 {
69 int err;
70
71
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21266 while (byte_alignment(rw) != 0)
72
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15054 fixed(1, zero_bit, 0);
73
74 6212 return 0;
75 }
76
77 1100 static int FUNC(color_config)(CodedBitstreamContext *ctx, RWContext *rw,
78 AV1RawColorConfig *current, int seq_profile)
79 {
80 1100 CodedBitstreamAV1Context *priv = ctx->priv_data;
81 int err;
82
83
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1100 flag(high_bitdepth);
84
85
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1100 if (seq_profile == FF_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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1100 priv->bit_depth = current->high_bitdepth ? 10 : 8;
91 }
92
93
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1100 if (seq_profile == FF_PROFILE_AV1_HIGH)
94 infer(mono_chrome, 0);
95 else
96
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1100 flag(mono_chrome);
97
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1100 priv->num_planes = current->mono_chrome ? 1 : 3;
98
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1100 flag(color_description_present_flag);
100
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1100 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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1100 infer(color_primaries, AVCOL_PRI_UNSPECIFIED);
106
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1100 infer(transfer_characteristics, AVCOL_TRC_UNSPECIFIED);
107
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1100 infer(matrix_coefficients, AVCOL_SPC_UNSPECIFIED);
108 }
109
110
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1100 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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1100 } 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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1100 flag(color_range);
128
129
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1100 if (seq_profile == FF_PROFILE_AV1_MAIN) {
130
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1100 infer(subsampling_x, 1);
131
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1100 infer(subsampling_y, 1);
132 } else if (seq_profile == FF_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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1100 if (current->subsampling_x && current->subsampling_y) {
148
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1100 fc(2, chroma_sample_position, AV1_CSP_UNKNOWN,
149 AV1_CSP_COLOCATED);
150 }
151
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1100 flag(separate_uv_delta_q);
153 }
154
155 1100 return 0;
156 }
157
158 588 static int FUNC(timing_info)(CodedBitstreamContext *ctx, RWContext *rw,
159 AV1RawTimingInfo *current)
160 {
161 int err;
162
163
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588 fc(32, num_units_in_display_tick, 1, MAX_UINT_BITS(32));
164
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588 fc(32, time_scale, 1, MAX_UINT_BITS(32));
165
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588 flag(equal_picture_interval);
167
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588 if (current->equal_picture_interval)
168 uvlc(num_ticks_per_picture_minus_1, 0, MAX_UINT_BITS(32) - 1);
169
170 588 return 0;
171 }
172
173 588 static int FUNC(decoder_model_info)(CodedBitstreamContext *ctx, RWContext *rw,
174 AV1RawDecoderModelInfo *current)
175 {
176 int err;
177
178
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588 fb(5, buffer_delay_length_minus_1);
179
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588 fb(32, num_units_in_decoding_tick);
180
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588 fb(5, buffer_removal_time_length_minus_1);
181
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588 fb(5, frame_presentation_time_length_minus_1);
182
183 588 return 0;
184 }
185
186 1100 static int FUNC(sequence_header_obu)(CodedBitstreamContext *ctx, RWContext *rw,
187 AV1RawSequenceHeader *current)
188 {
189 int i, err;
190
191 1100 HEADER("Sequence Header");
192
193
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1100 fc(3, seq_profile, FF_PROFILE_AV1_MAIN,
194 FF_PROFILE_AV1_PROFESSIONAL);
195
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1100 flag(still_picture);
196
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1100 flag(reduced_still_picture_header);
197
198
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1100 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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1100 flag(timing_info_present_flag);
213
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1100 if (current->timing_info_present_flag) {
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588 CHECK(FUNC(timing_info)(ctx, rw, &current->timing_info));
215
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588 flag(decoder_model_info_present_flag);
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588 if (current->decoder_model_info_present_flag) {
218
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588 CHECK(FUNC(decoder_model_info)
219 (ctx, rw, &current->decoder_model_info));
220 }
221 } else {
222
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512 infer(decoder_model_info_present_flag, 0);
223 }
224
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1100 flag(initial_display_delay_present_flag);
226
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1100 fb(5, operating_points_cnt_minus_1);
228
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2270 for (i = 0; i <= current->operating_points_cnt_minus_1; i++) {
229
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1170 fbs(12, operating_point_idc[i], 1, i);
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1170 fbs(5, seq_level_idx[i], 1, i);
231
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1170 if (current->seq_level_idx[i] > 7)
233 flags(seq_tier[i], 1, i);
234 else
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1170 infer(seq_tier[i], 0);
236
237
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1170 if (current->decoder_model_info_present_flag) {
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588 flags(decoder_model_present_for_this_op[i], 1, i);
239
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588 if (current->decoder_model_present_for_this_op[i]) {
240 588 int n = current->decoder_model_info.buffer_delay_length_minus_1 + 1;
241
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588 fbs(n, decoder_buffer_delay[i], 1, i);
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588 fbs(n, encoder_buffer_delay[i], 1, i);
243
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588 flags(low_delay_mode_flag[i], 1, i);
244 }
245 } else {
246
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582 infer(decoder_model_present_for_this_op[i], 0);
247 }
248
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1170 if (current->initial_display_delay_present_flag) {
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588 flags(initial_display_delay_present_for_this_op[i], 1, i);
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588 if (current->initial_display_delay_present_for_this_op[i])
252
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588 fbs(4, initial_display_delay_minus_1[i], 1, i);
253 }
254 }
255 }
256
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1100 fb(4, frame_width_bits_minus_1);
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1100 fb(4, frame_height_bits_minus_1);
259
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1100 fb(current->frame_width_bits_minus_1 + 1, max_frame_width_minus_1);
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1100 fb(current->frame_height_bits_minus_1 + 1, max_frame_height_minus_1);
262
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1100 if (current->reduced_still_picture_header)
264 infer(frame_id_numbers_present_flag, 0);
265 else
266
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1100 flag(frame_id_numbers_present_flag);
267
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1100 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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1100 flag(use_128x128_superblock);
273
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1100 flag(enable_filter_intra);
274
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1100 flag(enable_intra_edge_filter);
275
276
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1100 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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1100 flag(enable_interintra_compound);
291
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1100 flag(enable_masked_compound);
292
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1100 flag(enable_warped_motion);
293
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1100 flag(enable_dual_filter);
294
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1100 flag(enable_order_hint);
296
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1100 if (current->enable_order_hint) {
297
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1100 flag(enable_jnt_comp);
298
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1100 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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1100 flag(seq_choose_screen_content_tools);
305
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1100 if (current->seq_choose_screen_content_tools)
306
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1100 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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1100 if (current->seq_force_screen_content_tools > 0) {
311
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1100 flag(seq_choose_integer_mv);
312
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1100 if (current->seq_choose_integer_mv)
313
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1100 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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1100 if (current->enable_order_hint)
322
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1100 fb(3, order_hint_bits_minus_1);
323 }
324
325
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1100 flag(enable_superres);
326
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1100 flag(enable_cdef);
327
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1100 flag(enable_restoration);
328
329
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1100 CHECK(FUNC(color_config)(ctx, rw, &current->color_config,
330 current->seq_profile));
331
332
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1100 flag(film_grain_params_present);
333
334 1100 return 0;
335 }
336
337 2682 static int FUNC(temporal_delimiter_obu)(CodedBitstreamContext *ctx, RWContext *rw)
338 {
339 2682 CodedBitstreamAV1Context *priv = ctx->priv_data;
340
341 2682 HEADER("Temporal Delimiter");
342
343 2682 priv->seen_frame_header = 0;
344
345 2682 return 0;
346 }
347
348 112 static int FUNC(set_frame_refs)(CodedBitstreamContext *ctx, RWContext *rw,
349 AV1RawFrameHeader *current)
350 {
351 112 CodedBitstreamAV1Context *priv = ctx->priv_data;
352 112 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 int8_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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896 for (i = 0; i < AV1_REFS_PER_FRAME; i++)
363 784 ref_frame_idx[i] = -1;
364 112 ref_frame_idx[AV1_REF_FRAME_LAST - AV1_REF_FRAME_LAST] = current->last_frame_idx;
365 112 ref_frame_idx[AV1_REF_FRAME_GOLDEN - AV1_REF_FRAME_LAST] = current->golden_frame_idx;
366
367
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1008 for (i = 0; i < AV1_NUM_REF_FRAMES; i++)
368 896 used_frame[i] = 0;
369 112 used_frame[current->last_frame_idx] = 1;
370 112 used_frame[current->golden_frame_idx] = 1;
371
372 112 cur_frame_hint = 1 << (seq->order_hint_bits_minus_1);
373
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1008 for (i = 0; i < AV1_NUM_REF_FRAMES; i++)
374 896 shifted_order_hints[i] = cur_frame_hint +
375 896 cbs_av1_get_relative_dist(seq, priv->ref[i].order_hint,
376 896 priv->order_hint);
377
378 112 latest_order_hint = shifted_order_hints[current->last_frame_idx];
379 112 earliest_order_hint = shifted_order_hints[current->golden_frame_idx];
380
381 112 ref = -1;
382
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1008 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
383 896 int hint = shifted_order_hints[i];
384
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896 if (!used_frame[i] && hint >= cur_frame_hint &&
385
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224 (ref < 0 || hint >= latest_order_hint)) {
386 232 ref = i;
387 232 latest_order_hint = hint;
388 }
389 }
390
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112 if (ref >= 0) {
391 112 ref_frame_idx[AV1_REF_FRAME_ALTREF - AV1_REF_FRAME_LAST] = ref;
392 112 used_frame[ref] = 1;
393 }
394
395 112 ref = -1;
396
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1008 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
397 896 int hint = shifted_order_hints[i];
398
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896 if (!used_frame[i] && hint >= cur_frame_hint &&
399
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112 (ref < 0 || hint < earliest_order_hint)) {
400 120 ref = i;
401 120 earliest_order_hint = hint;
402 }
403 }
404
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112 if (ref >= 0) {
405 112 ref_frame_idx[AV1_REF_FRAME_BWDREF - AV1_REF_FRAME_LAST] = ref;
406 112 used_frame[ref] = 1;
407 }
408
409 112 ref = -1;
410
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1008 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
411 896 int hint = shifted_order_hints[i];
412
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896 if (!used_frame[i] && hint >= cur_frame_hint &&
413
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16 (ref < 0 || hint < earliest_order_hint)) {
414 96 ref = i;
415 96 earliest_order_hint = hint;
416 }
417 }
418
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112 if (ref >= 0) {
419 96 ref_frame_idx[AV1_REF_FRAME_ALTREF2 - AV1_REF_FRAME_LAST] = ref;
420 96 used_frame[ref] = 1;
421 }
422
423
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672 for (i = 0; i < AV1_REFS_PER_FRAME - 2; i++) {
424 560 int ref_frame = ref_frame_list[i];
425
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560 if (ref_frame_idx[ref_frame - AV1_REF_FRAME_LAST] < 0 ) {
426 240 ref = -1;
427
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2160 for (j = 0; j < AV1_NUM_REF_FRAMES; j++) {
428 1920 int hint = shifted_order_hints[j];
429
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1920 if (!used_frame[j] && hint < cur_frame_hint &&
430
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352 (ref < 0 || hint >= latest_order_hint)) {
431 448 ref = j;
432 448 latest_order_hint = hint;
433 }
434 }
435
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240 if (ref >= 0) {
436 240 ref_frame_idx[ref_frame - AV1_REF_FRAME_LAST] = ref;
437 240 used_frame[ref] = 1;
438 }
439 }
440 }
441
442 112 ref = -1;
443
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1008 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
444 896 int hint = shifted_order_hints[i];
445
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896 if (ref < 0 || hint < earliest_order_hint) {
446 200 ref = i;
447 200 earliest_order_hint = hint;
448 }
449 }
450
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896 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
451
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784 if (ref_frame_idx[i] < 0)
452 ref_frame_idx[i] = ref;
453
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784 infer(ref_frame_idx[i], ref_frame_idx[i]);
454 }
455
456 112 return 0;
457 }
458
459 3010 static int FUNC(superres_params)(CodedBitstreamContext *ctx, RWContext *rw,
460 AV1RawFrameHeader *current)
461 {
462 3010 CodedBitstreamAV1Context *priv = ctx->priv_data;
463 3010 const AV1RawSequenceHeader *seq = priv->sequence_header;
464 int denom, err;
465
466
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3010 if (seq->enable_superres)
467 flag(use_superres);
468 else
469
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3010 infer(use_superres, 0);
470
471
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3010 if (current->use_superres) {
472 fb(3, coded_denom);
473 denom = current->coded_denom + AV1_SUPERRES_DENOM_MIN;
474 } else {
475 3010 denom = AV1_SUPERRES_NUM;
476 }
477
478 3010 priv->upscaled_width = priv->frame_width;
479 3010 priv->frame_width = (priv->upscaled_width * AV1_SUPERRES_NUM +
480 3010 denom / 2) / denom;
481
482 3010 return 0;
483 }
484
485 2890 static int FUNC(frame_size)(CodedBitstreamContext *ctx, RWContext *rw,
486 AV1RawFrameHeader *current)
487 {
488 2890 CodedBitstreamAV1Context *priv = ctx->priv_data;
489 2890 const AV1RawSequenceHeader *seq = priv->sequence_header;
490 int err;
491
492
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2890 if (current->frame_size_override_flag) {
493
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24 fb(seq->frame_width_bits_minus_1 + 1, frame_width_minus_1);
494
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24 fb(seq->frame_height_bits_minus_1 + 1, frame_height_minus_1);
495 } else {
496
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2866 infer(frame_width_minus_1, seq->max_frame_width_minus_1);
497
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2866 infer(frame_height_minus_1, seq->max_frame_height_minus_1);
498 }
499
500 2890 priv->frame_width = current->frame_width_minus_1 + 1;
501 2890 priv->frame_height = current->frame_height_minus_1 + 1;
502
503
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2890 CHECK(FUNC(superres_params)(ctx, rw, current));
504
505 2890 return 0;
506 }
507
508 2890 static int FUNC(render_size)(CodedBitstreamContext *ctx, RWContext *rw,
509 AV1RawFrameHeader *current)
510 {
511 2890 CodedBitstreamAV1Context *priv = ctx->priv_data;
512 int err;
513
514
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2890 flag(render_and_frame_size_different);
515
516
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2890 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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2890 infer(render_width_minus_1, current->frame_width_minus_1);
521
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2890 infer(render_height_minus_1, current->frame_height_minus_1);
522 }
523
524 2890 priv->render_width = current->render_width_minus_1 + 1;
525 2890 priv->render_height = current->render_height_minus_1 + 1;
526
527 2890 return 0;
528 }
529
530 120 static int FUNC(frame_size_with_refs)(CodedBitstreamContext *ctx, RWContext *rw,
531 AV1RawFrameHeader *current)
532 {
533 120 CodedBitstreamAV1Context *priv = ctx->priv_data;
534 int i, err;
535
536
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120 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
537
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120 flags(found_ref[i], 1, i);
538
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120 if (current->found_ref[i]) {
539 120 AV1ReferenceFrameState *ref =
540 120 &priv->ref[current->ref_frame_idx[i]];
541
542
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120 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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120 infer(frame_width_minus_1, ref->upscaled_width - 1);
551
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120 infer(frame_height_minus_1, ref->frame_height - 1);
552
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120 infer(render_width_minus_1, ref->render_width - 1);
553
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120 infer(render_height_minus_1, ref->render_height - 1);
554
555 120 priv->upscaled_width = ref->upscaled_width;
556 120 priv->frame_width = priv->upscaled_width;
557 120 priv->frame_height = ref->frame_height;
558 120 priv->render_width = ref->render_width;
559 120 priv->render_height = ref->render_height;
560 120 break;
561 }
562 }
563
564
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120 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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120 CHECK(FUNC(superres_params)(ctx, rw, current));
569 }
570
571 120 return 0;
572 }
573
574 2574 static int FUNC(interpolation_filter)(CodedBitstreamContext *ctx, RWContext *rw,
575 AV1RawFrameHeader *current)
576 {
577 int err;
578
579
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2574 flag(is_filter_switchable);
580
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2574 if (current->is_filter_switchable)
581
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2054 infer(interpolation_filter,
582 AV1_INTERPOLATION_FILTER_SWITCHABLE);
583 else
584
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520 fb(2, interpolation_filter);
585
586 2574 return 0;
587 }
588
589 3010 static int FUNC(tile_info)(CodedBitstreamContext *ctx, RWContext *rw,
590 AV1RawFrameHeader *current)
591 {
592 3010 CodedBitstreamAV1Context *priv = ctx->priv_data;
593 3010 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 3010 mi_cols = 2 * ((priv->frame_width + 7) >> 3);
601 3010 mi_rows = 2 * ((priv->frame_height + 7) >> 3);
602
603 7608 sb_cols = seq->use_128x128_superblock ? ((mi_cols + 31) >> 5)
604
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3010 : ((mi_cols + 15) >> 4);
605 7608 sb_rows = seq->use_128x128_superblock ? ((mi_rows + 31) >> 5)
606
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3010 : ((mi_rows + 15) >> 4);
607
608
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3010 sb_shift = seq->use_128x128_superblock ? 5 : 4;
609 3010 sb_size = sb_shift + 2;
610
611 3010 max_tile_width_sb = AV1_MAX_TILE_WIDTH >> sb_size;
612 3010 max_tile_area_sb = AV1_MAX_TILE_AREA >> (2 * sb_size);
613
614 3010 min_log2_tile_cols = cbs_av1_tile_log2(max_tile_width_sb, sb_cols);
615 3010 max_log2_tile_cols = cbs_av1_tile_log2(1, FFMIN(sb_cols, AV1_MAX_TILE_COLS));
616 3010 max_log2_tile_rows = cbs_av1_tile_log2(1, FFMIN(sb_rows, AV1_MAX_TILE_ROWS));
617
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3010 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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3010 flag(uniform_tile_spacing_flag);
621
622
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3010 if (current->uniform_tile_spacing_flag) {
623 int tile_width_sb, tile_height_sb;
624
625
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2802 increment(tile_cols_log2, min_log2_tile_cols, max_log2_tile_cols);
626
627 2802 tile_width_sb = (sb_cols + (1 << current->tile_cols_log2) - 1) >>
628 2802 current->tile_cols_log2;
629 2802 current->tile_cols = (sb_cols + tile_width_sb - 1) / tile_width_sb;
630
631 2802 min_log2_tile_rows = FFMAX(min_log2_tiles - current->tile_cols_log2, 0);
632
633
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2802 increment(tile_rows_log2, min_log2_tile_rows, max_log2_tile_rows);
634
635 2802 tile_height_sb = (sb_rows + (1 << current->tile_rows_log2) - 1) >>
636 2802 current->tile_rows_log2;
637 2802 current->tile_rows = (sb_rows + tile_height_sb - 1) / tile_height_sb;
638
639
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3742 for (i = 0; i < current->tile_cols - 1; i++)
640
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940 infer(width_in_sbs_minus_1[i], tile_width_sb - 1);
641
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2802 infer(width_in_sbs_minus_1[i],
642 sb_cols - (current->tile_cols - 1) * tile_width_sb - 1);
643
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2974 for (i = 0; i < current->tile_rows - 1; i++)
644
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172 infer(height_in_sbs_minus_1[i], tile_height_sb - 1);
645
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2802 infer(height_in_sbs_minus_1[i],
646 sb_rows - (current->tile_rows - 1) * tile_height_sb - 1);
647
648 } else {
649 int widest_tile_sb, start_sb, size_sb, max_width, max_height;
650
651 208 widest_tile_sb = 0;
652
653 208 start_sb = 0;
654
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416 for (i = 0; start_sb < sb_cols && i < AV1_MAX_TILE_COLS; i++) {
655 208 max_width = FFMIN(sb_cols - start_sb, max_tile_width_sb);
656
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208 ns(max_width, width_in_sbs_minus_1[i], 1, i);
657 208 size_sb = current->width_in_sbs_minus_1[i] + 1;
658 208 widest_tile_sb = FFMAX(size_sb, widest_tile_sb);
659 208 start_sb += size_sb;
660 }
661 208 current->tile_cols_log2 = cbs_av1_tile_log2(1, i);
662 208 current->tile_cols = i;
663
664
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208 if (min_log2_tiles > 0)
665 max_tile_area_sb = (sb_rows * sb_cols) >> (min_log2_tiles + 1);
666 else
667 208 max_tile_area_sb = sb_rows * sb_cols;
668 208 max_tile_height_sb = FFMAX(max_tile_area_sb / widest_tile_sb, 1);
669
670 208 start_sb = 0;
671
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1040 for (i = 0; start_sb < sb_rows && i < AV1_MAX_TILE_ROWS; i++) {
672 832 max_height = FFMIN(sb_rows - start_sb, max_tile_height_sb);
673
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832 ns(max_height, height_in_sbs_minus_1[i], 1, i);
674 832 size_sb = current->height_in_sbs_minus_1[i] + 1;
675 832 start_sb += size_sb;
676 }
677 208 current->tile_rows_log2 = cbs_av1_tile_log2(1, i);
678 208 current->tile_rows = i;
679 }
680
681
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3010 if (current->tile_cols_log2 > 0 ||
682
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2604 current->tile_rows_log2 > 0) {
683
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614 fb(current->tile_cols_log2 + current->tile_rows_log2,
684 context_update_tile_id);
685
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614 fb(2, tile_size_bytes_minus1);
686 } else {
687
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2396 infer(context_update_tile_id, 0);
688 }
689
690 3010 priv->tile_cols = current->tile_cols;
691 3010 priv->tile_rows = current->tile_rows;
692
693 3010 return 0;
694 }
695
696 3010 static int FUNC(quantization_params)(CodedBitstreamContext *ctx, RWContext *rw,
697 AV1RawFrameHeader *current)
698 {
699 3010 CodedBitstreamAV1Context *priv = ctx->priv_data;
700 3010 const AV1RawSequenceHeader *seq = priv->sequence_header;
701 int err;
702
703
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3010 fb(8, base_q_idx);
704
705
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3010 delta_q(delta_q_y_dc);
706
707
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3010 if (priv->num_planes > 1) {
708
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3010 if (seq->color_config.separate_uv_delta_q)
709 flag(diff_uv_delta);
710 else
711
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3010 infer(diff_uv_delta, 0);
712
713
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3010 delta_q(delta_q_u_dc);
714
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3010 delta_q(delta_q_u_ac);
715
716
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3010 if (current->diff_uv_delta) {
717 delta_q(delta_q_v_dc);
718 delta_q(delta_q_v_ac);
719 } else {
720
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3010 infer(delta_q_v_dc, current->delta_q_u_dc);
721
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3010 infer(delta_q_v_ac, current->delta_q_u_ac);
722 }
723 } else {
724 infer(delta_q_u_dc, 0);
725 infer(delta_q_u_ac, 0);
726 infer(delta_q_v_dc, 0);
727 infer(delta_q_v_ac, 0);
728 }
729
730
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3010 flag(using_qmatrix);
731
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3010 if (current->using_qmatrix) {
732 fb(4, qm_y);
733 fb(4, qm_u);
734 if (seq->color_config.separate_uv_delta_q)
735 fb(4, qm_v);
736 else
737 infer(qm_v, current->qm_u);
738 }
739
740 3010 return 0;
741 }
742
743 3010 static int FUNC(segmentation_params)(CodedBitstreamContext *ctx, RWContext *rw,
744 AV1RawFrameHeader *current)
745 {
746 3010 CodedBitstreamAV1Context *priv = ctx->priv_data;
747 static const uint8_t bits[AV1_SEG_LVL_MAX] = { 8, 6, 6, 6, 6, 3, 0, 0 };
748 static const uint8_t sign[AV1_SEG_LVL_MAX] = { 1, 1, 1, 1, 1, 0, 0, 0 };
749 static const uint8_t default_feature_enabled[AV1_SEG_LVL_MAX] = { 0 };
750 static const int16_t default_feature_value[AV1_SEG_LVL_MAX] = { 0 };
751 int i, j, err;
752
753
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3010 flag(segmentation_enabled);
754
755
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3010 if (current->segmentation_enabled) {
756 if (current->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
757 infer(segmentation_update_map, 1);
758 infer(segmentation_temporal_update, 0);
759 infer(segmentation_update_data, 1);
760 } else {
761 flag(segmentation_update_map);
762 if (current->segmentation_update_map)
763 flag(segmentation_temporal_update);
764 else
765 infer(segmentation_temporal_update, 0);
766 flag(segmentation_update_data);
767 }
768
769 for (i = 0; i < AV1_MAX_SEGMENTS; i++) {
770 const uint8_t *ref_feature_enabled;
771 const int16_t *ref_feature_value;
772
773 if (current->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
774 ref_feature_enabled = default_feature_enabled;
775 ref_feature_value = default_feature_value;
776 } else {
777 ref_feature_enabled =
778 priv->ref[current->ref_frame_idx[current->primary_ref_frame]].feature_enabled[i];
779 ref_feature_value =
780 priv->ref[current->ref_frame_idx[current->primary_ref_frame]].feature_value[i];
781 }
782
783 for (j = 0; j < AV1_SEG_LVL_MAX; j++) {
784 if (current->segmentation_update_data) {
785 flags(feature_enabled[i][j], 2, i, j);
786
787 if (current->feature_enabled[i][j] && bits[j] > 0) {
788 if (sign[j])
789 sus(1 + bits[j], feature_value[i][j], 2, i, j);
790 else
791 fbs(bits[j], feature_value[i][j], 2, i, j);
792 } else {
793 infer(feature_value[i][j], 0);
794 }
795 } else {
796 infer(feature_enabled[i][j], ref_feature_enabled[j]);
797 infer(feature_value[i][j], ref_feature_value[j]);
798 }
799 }
800 }
801 } else {
802
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27090 for (i = 0; i < AV1_MAX_SEGMENTS; i++) {
803
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216720 for (j = 0; j < AV1_SEG_LVL_MAX; j++) {
804
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192640 infer(feature_enabled[i][j], 0);
805
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192640 infer(feature_value[i][j], 0);
806 }
807 }
808 }
809
810 3010 return 0;
811 }
812
813 3010 static int FUNC(delta_q_params)(CodedBitstreamContext *ctx, RWContext *rw,
814 AV1RawFrameHeader *current)
815 {
816 int err;
817
818
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3010 if (current->base_q_idx > 0)
819
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3010 flag(delta_q_present);
820 else
821 infer(delta_q_present, 0);
822
823
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3010 if (current->delta_q_present)
824
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32 fb(2, delta_q_res);
825
826 3010 return 0;
827 }
828
829 3010 static int FUNC(delta_lf_params)(CodedBitstreamContext *ctx, RWContext *rw,
830 AV1RawFrameHeader *current)
831 {
832 int err;
833
834
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3010 if (current->delta_q_present) {
835
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32 if (!current->allow_intrabc)
836
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32 flag(delta_lf_present);
837 else
838 infer(delta_lf_present, 0);
839
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32 if (current->delta_lf_present) {
840 fb(2, delta_lf_res);
841 flag(delta_lf_multi);
842 } else {
843
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32 infer(delta_lf_res, 0);
844
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32 infer(delta_lf_multi, 0);
845 }
846 } else {
847
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2978 infer(delta_lf_present, 0);
848
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2978 infer(delta_lf_res, 0);
849
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2978 infer(delta_lf_multi, 0);
850 }
851
852 3010 return 0;
853 }
854
855 3010 static int FUNC(loop_filter_params)(CodedBitstreamContext *ctx, RWContext *rw,
856 AV1RawFrameHeader *current)
857 {
858 3010 CodedBitstreamAV1Context *priv = ctx->priv_data;
859 static const int8_t default_loop_filter_ref_deltas[AV1_TOTAL_REFS_PER_FRAME] =
860 { 1, 0, 0, 0, -1, 0, -1, -1 };
861 static const int8_t default_loop_filter_mode_deltas[2] = { 0, 0 };
862 int i, err;
863
864
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3010 if (priv->coded_lossless || current->allow_intrabc) {
865 infer(loop_filter_level[0], 0);
866 infer(loop_filter_level[1], 0);
867 infer(loop_filter_ref_deltas[AV1_REF_FRAME_INTRA], 1);
868 infer(loop_filter_ref_deltas[AV1_REF_FRAME_LAST], 0);
869 infer(loop_filter_ref_deltas[AV1_REF_FRAME_LAST2], 0);
870 infer(loop_filter_ref_deltas[AV1_REF_FRAME_LAST3], 0);
871 infer(loop_filter_ref_deltas[AV1_REF_FRAME_BWDREF], 0);
872 infer(loop_filter_ref_deltas[AV1_REF_FRAME_GOLDEN], -1);
873 infer(loop_filter_ref_deltas[AV1_REF_FRAME_ALTREF], -1);
874 infer(loop_filter_ref_deltas[AV1_REF_FRAME_ALTREF2], -1);
875 for (i = 0; i < 2; i++)
876 infer(loop_filter_mode_deltas[i], 0);
877 return 0;
878 }
879
880
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3010 fb(6, loop_filter_level[0]);
881
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3010 fb(6, loop_filter_level[1]);
882
883
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3010 if (priv->num_planes > 1) {
884
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3010 if (current->loop_filter_level[0] ||
885
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1484 current->loop_filter_level[1]) {
886
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1558 fb(6, loop_filter_level[2]);
887
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1558 fb(6, loop_filter_level[3]);
888 }
889 }
890
891
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3010 fb(3, loop_filter_sharpness);
892
893
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3010 flag(loop_filter_delta_enabled);
894
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3010 if (current->loop_filter_delta_enabled) {
895 const int8_t *ref_loop_filter_ref_deltas, *ref_loop_filter_mode_deltas;
896
897
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3010 if (current->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
898 804 ref_loop_filter_ref_deltas = default_loop_filter_ref_deltas;
899 804 ref_loop_filter_mode_deltas = default_loop_filter_mode_deltas;
900 } else {
901 2206 ref_loop_filter_ref_deltas =
902 2206 priv->ref[current->ref_frame_idx[current->primary_ref_frame]].loop_filter_ref_deltas;
903 2206 ref_loop_filter_mode_deltas =
904 2206 priv->ref[current->ref_frame_idx[current->primary_ref_frame]].loop_filter_mode_deltas;
905 }
906
907
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3010 flag(loop_filter_delta_update);
908
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27090 for (i = 0; i < AV1_TOTAL_REFS_PER_FRAME; i++) {
909
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24080 if (current->loop_filter_delta_update)
910
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6432 flags(update_ref_delta[i], 1, i);
911 else
912
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17648 infer(update_ref_delta[i], 0);
913
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24080 if (current->update_ref_delta[i])
914 sus(1 + 6, loop_filter_ref_deltas[i], 1, i);
915 else
916
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24080 infer(loop_filter_ref_deltas[i], ref_loop_filter_ref_deltas[i]);
917 }
918
2/2
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9030 for (i = 0; i < 2; i++) {
919
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6020 if (current->loop_filter_delta_update)
920
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1608 flags(update_mode_delta[i], 1, i);
921 else
922
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4412 infer(update_mode_delta[i], 0);
923
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6020 if (current->update_mode_delta[i])
924 sus(1 + 6, loop_filter_mode_deltas[i], 1, i);
925 else
926
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6020 infer(loop_filter_mode_deltas[i], ref_loop_filter_mode_deltas[i]);
927 }
928 } else {
929 for (i = 0; i < AV1_TOTAL_REFS_PER_FRAME; i++)
930 infer(loop_filter_ref_deltas[i], default_loop_filter_ref_deltas[i]);
931 for (i = 0; i < 2; i++)
932 infer(loop_filter_mode_deltas[i], default_loop_filter_mode_deltas[i]);
933 }
934
935 3010 return 0;
936 }
937
938 3010 static int FUNC(cdef_params)(CodedBitstreamContext *ctx, RWContext *rw,
939 AV1RawFrameHeader *current)
940 {
941 3010 CodedBitstreamAV1Context *priv = ctx->priv_data;
942 3010 const AV1RawSequenceHeader *seq = priv->sequence_header;
943 int i, err;
944
945
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3010 if (priv->coded_lossless || current->allow_intrabc ||
946
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3010 !seq->enable_cdef) {
947
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342 infer(cdef_damping_minus_3, 0);
948
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342 infer(cdef_bits, 0);
949
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342 infer(cdef_y_pri_strength[0], 0);
950
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342 infer(cdef_y_sec_strength[0], 0);
951
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342 infer(cdef_uv_pri_strength[0], 0);
952
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342 infer(cdef_uv_sec_strength[0], 0);
953
954 342 return 0;
955 }
956
957
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2668 fb(2, cdef_damping_minus_3);
958
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2668 fb(2, cdef_bits);
959
960
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13280 for (i = 0; i < (1 << current->cdef_bits); i++) {
961
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10612 fbs(4, cdef_y_pri_strength[i], 1, i);
962
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10612 fbs(2, cdef_y_sec_strength[i], 1, i);
963
964
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10612 if (priv->num_planes > 1) {
965
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10612 fbs(4, cdef_uv_pri_strength[i], 1, i);
966
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10612 fbs(2, cdef_uv_sec_strength[i], 1, i);
967 }
968 }
969
970 2668 return 0;
971 }
972
973 3010 static int FUNC(lr_params)(CodedBitstreamContext *ctx, RWContext *rw,
974 AV1RawFrameHeader *current)
975 {
976 3010 CodedBitstreamAV1Context *priv = ctx->priv_data;
977 3010 const AV1RawSequenceHeader *seq = priv->sequence_header;
978 int uses_lr, uses_chroma_lr;
979 int i, err;
980
981
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3010 if (priv->all_lossless || current->allow_intrabc ||
982
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3010 !seq->enable_restoration) {
983 256 return 0;
984 }
985
986 2754 uses_lr = uses_chroma_lr = 0;
987
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11016 for (i = 0; i < priv->num_planes; i++) {
988
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8262 fbs(2, lr_type[i], 1, i);
989
990
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8262 if (current->lr_type[i] != AV1_RESTORE_NONE) {
991 2212 uses_lr = 1;
992
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✓ Branch 1 taken 682 times.
2212 if (i > 0)
993 848 uses_chroma_lr = 1;
994 }
995 }
996
997
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2754 if (uses_lr) {
998
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✓ Branch 1 taken 272 times.
1518 if (seq->use_128x128_superblock)
999
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974 increment(lr_unit_shift, 1, 2);
1000 else
1001
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544 increment(lr_unit_shift, 0, 2);
1002
1003
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1518 if(seq->color_config.subsampling_x &&
1004
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1518 seq->color_config.subsampling_y && uses_chroma_lr) {
1005
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554 fb(1, lr_uv_shift);
1006 } else {
1007
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964 infer(lr_uv_shift, 0);
1008 }
1009 }
1010
1011 2754 return 0;
1012 }
1013
1014 3010 static int FUNC(read_tx_mode)(CodedBitstreamContext *ctx, RWContext *rw,
1015 AV1RawFrameHeader *current)
1016 {
1017 3010 CodedBitstreamAV1Context *priv = ctx->priv_data;
1018 int err;
1019
1020
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3010 if (priv->coded_lossless)
1021 infer(tx_mode, 0);
1022 else
1023
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3010 increment(tx_mode, 1, 2);
1024
1025 3010 return 0;
1026 }
1027
1028 3010 static int FUNC(frame_reference_mode)(CodedBitstreamContext *ctx, RWContext *rw,
1029 AV1RawFrameHeader *current)
1030 {
1031 int err;
1032
1033
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3010 if (current->frame_type == AV1_FRAME_INTRA_ONLY ||
1034
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✓ Branch 1 taken 1287 times.
3010 current->frame_type == AV1_FRAME_KEY)
1035
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436 infer(reference_select, 0);
1036 else
1037
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2574 flag(reference_select);
1038
1039 3010 return 0;
1040 }
1041
1042 3010 static int FUNC(skip_mode_params)(CodedBitstreamContext *ctx, RWContext *rw,
1043 AV1RawFrameHeader *current)
1044 {
1045 3010 CodedBitstreamAV1Context *priv = ctx->priv_data;
1046 3010 const AV1RawSequenceHeader *seq = priv->sequence_header;
1047 int skip_mode_allowed;
1048 int err;
1049
1050
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3010 if (current->frame_type == AV1_FRAME_KEY ||
1051
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2574 current->frame_type == AV1_FRAME_INTRA_ONLY ||
1052
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2574 !current->reference_select || !seq->enable_order_hint) {
1053 1596 skip_mode_allowed = 0;
1054 } else {
1055 int forward_idx, backward_idx;
1056 int forward_hint, backward_hint;
1057 int ref_hint, dist, i;
1058
1059 1414 forward_idx = -1;
1060 1414 backward_idx = -1;
1061
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11312 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
1062 9898 ref_hint = priv->ref[current->ref_frame_idx[i]].order_hint;
1063 9898 dist = cbs_av1_get_relative_dist(seq, ref_hint,
1064 9898 priv->order_hint);
1065
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9898 if (dist < 0) {
1066
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15278 if (forward_idx < 0 ||
1067 6932 cbs_av1_get_relative_dist(seq, ref_hint,
1068 forward_hint) > 0) {
1069 1602 forward_idx = i;
1070 1602 forward_hint = ref_hint;
1071 }
1072
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1552 } else if (dist > 0) {
1073
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2168 if (backward_idx < 0 ||
1074 672 cbs_av1_get_relative_dist(seq, ref_hint,
1075 backward_hint) < 0) {
1076 824 backward_idx = i;
1077 824 backward_hint = ref_hint;
1078 }
1079 }
1080 }
1081
1082
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1414 if (forward_idx < 0) {
1083 skip_mode_allowed = 0;
1084
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1414 } else if (backward_idx >= 0) {
1085 824 skip_mode_allowed = 1;
1086 // Frames for skip mode are forward_idx and backward_idx.
1087 } else {
1088 int second_forward_idx;
1089 int second_forward_hint;
1090
1091 590 second_forward_idx = -1;
1092
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4720 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
1093 4130 ref_hint = priv->ref[current->ref_frame_idx[i]].order_hint;
1094
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4130 if (cbs_av1_get_relative_dist(seq, ref_hint,
1095 forward_hint) < 0) {
1096
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6044 if (second_forward_idx < 0 ||
1097 2740 cbs_av1_get_relative_dist(seq, ref_hint,
1098 second_forward_hint) > 0) {
1099 596 second_forward_idx = i;
1100 596 second_forward_hint = ref_hint;
1101 }
1102 }
1103 }
1104
1105
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590 if (second_forward_idx < 0) {
1106 26 skip_mode_allowed = 0;
1107 } else {
1108 564 skip_mode_allowed = 1;
1109 // Frames for skip mode are forward_idx and second_forward_idx.
1110 }
1111 }
1112 }
1113
1114
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3010 if (skip_mode_allowed)
1115
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1388 flag(skip_mode_present);
1116 else
1117
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1622 infer(skip_mode_present, 0);
1118
1119 3010 return 0;
1120 }
1121
1122 736 static int FUNC(global_motion_param)(CodedBitstreamContext *ctx, RWContext *rw,
1123 AV1RawFrameHeader *current,
1124 int type, int ref, int idx)
1125 {
1126 uint32_t abs_bits, prec_bits, num_syms;
1127 int err;
1128
1129
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736 if (idx < 2) {
1130
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368 if (type == AV1_WARP_MODEL_TRANSLATION) {
1131 abs_bits = AV1_GM_ABS_TRANS_ONLY_BITS - !current->allow_high_precision_mv;
1132 prec_bits = AV1_GM_TRANS_ONLY_PREC_BITS - !current->allow_high_precision_mv;
1133 } else {
1134 368 abs_bits = AV1_GM_ABS_TRANS_BITS;
1135 368 prec_bits = AV1_GM_TRANS_PREC_BITS;
1136 }
1137 } else {
1138 368 abs_bits = AV1_GM_ABS_ALPHA_BITS;
1139 368 prec_bits = AV1_GM_ALPHA_PREC_BITS;
1140 }
1141
1142 736 num_syms = 2 * (1 << abs_bits) + 1;
1143
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736 subexp(gm_params[ref][idx], num_syms, 2, ref, idx);
1144
1145 // Actual gm_params value is not reconstructed here.
1146 (void)prec_bits;
1147
1148 736 return 0;
1149 }
1150
1151 3010 static int FUNC(global_motion_params)(CodedBitstreamContext *ctx, RWContext *rw,
1152 AV1RawFrameHeader *current)
1153 {
1154 int ref, type;
1155 int err;
1156
1157
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3010 if (current->frame_type == AV1_FRAME_KEY ||
1158
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2574 current->frame_type == AV1_FRAME_INTRA_ONLY)
1159 436 return 0;
1160
1161
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20592 for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
1162
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18018 flags(is_global[ref], 1, ref);
1163
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18018 if (current->is_global[ref]) {
1164
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184 flags(is_rot_zoom[ref], 1, ref);
1165
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184 if (current->is_rot_zoom[ref]) {
1166 184 type = AV1_WARP_MODEL_ROTZOOM;
1167 } else {
1168 flags(is_translation[ref], 1, ref);
1169 type = current->is_translation[ref] ? AV1_WARP_MODEL_TRANSLATION
1170 : AV1_WARP_MODEL_AFFINE;
1171 }
1172 } else {
1173 17834 type = AV1_WARP_MODEL_IDENTITY;
1174 }
1175
1176
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18018 if (type >= AV1_WARP_MODEL_ROTZOOM) {
1177
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184 CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 2));
1178
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184 CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 3));
1179
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184 if (type == AV1_WARP_MODEL_AFFINE) {
1180 CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 4));
1181 CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 5));
1182 } else {
1183 // gm_params[ref][4] = -gm_params[ref][3]
1184 // gm_params[ref][5] = gm_params[ref][2]
1185 }
1186 }
1187
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18018 if (type >= AV1_WARP_MODEL_TRANSLATION) {
1188
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184 CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 0));
1189
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184 CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 1));
1190 }
1191 }
1192
1193 2574 return 0;
1194 }
1195
1196 3010 static int FUNC(film_grain_params)(CodedBitstreamContext *ctx, RWContext *rw,
1197 AV1RawFilmGrainParams *current,
1198 AV1RawFrameHeader *frame_header)
1199 {
1200 3010 CodedBitstreamAV1Context *priv = ctx->priv_data;
1201 3010 const AV1RawSequenceHeader *seq = priv->sequence_header;
1202 int num_pos_luma, num_pos_chroma;
1203 int i, err;
1204
1205
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3010 if (!seq->film_grain_params_present ||
1206
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✓ Branch 3 taken 24 times.
176 (!frame_header->show_frame && !frame_header->showable_frame))
1207 2850 return 0;
1208
1209
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160 flag(apply_grain);
1210
1211
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160 if (!current->apply_grain)
1212 return 0;
1213
1214
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160 fb(16, grain_seed);
1215
1216
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160 if (frame_header->frame_type == AV1_FRAME_INTER)
1217
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144 flag(update_grain);
1218 else
1219
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16 infer(update_grain, 1);
1220
1221
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160 if (!current->update_grain) {
1222 fb(3, film_grain_params_ref_idx);
1223 return 0;
1224 }
1225
1226
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160 fc(4, num_y_points, 0, 14);
1227
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✓ Branch 1 taken 80 times.
1264 for (i = 0; i < current->num_y_points; i++) {
1228
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1104 fcs(8, point_y_value[i],
1229 i ? current->point_y_value[i - 1] + 1 : 0,
1230 MAX_UINT_BITS(8) - (current->num_y_points - i - 1),
1231 1, i);
1232
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1104 fbs(8, point_y_scaling[i], 1, i);
1233 }
1234
1235
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160 if (seq->color_config.mono_chrome)
1236 infer(chroma_scaling_from_luma, 0);
1237 else
1238
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160 flag(chroma_scaling_from_luma);
1239
1240
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160 if (seq->color_config.mono_chrome ||
1241
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160 current->chroma_scaling_from_luma ||
1242
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160 (seq->color_config.subsampling_x == 1 &&
1243
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160 seq->color_config.subsampling_y == 1 &&
1244
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160 current->num_y_points == 0)) {
1245 infer(num_cb_points, 0);
1246 infer(num_cr_points, 0);
1247 } else {
1248
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160 fc(4, num_cb_points, 0, 10);
1249
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784 for (i = 0; i < current->num_cb_points; i++) {
1250
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✗ Branch 3 not taken.
✓ Branch 4 taken 312 times.
624 fcs(8, point_cb_value[i],
1251 i ? current->point_cb_value[i - 1] + 1 : 0,
1252 MAX_UINT_BITS(8) - (current->num_cb_points - i - 1),
1253 1, i);
1254
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624 fbs(8, point_cb_scaling[i], 1, i);
1255 }
1256
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160 fc(4, num_cr_points, 0, 10);
1257
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800 for (i = 0; i < current->num_cr_points; i++) {
1258
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✗ Branch 3 not taken.
✓ Branch 4 taken 320 times.
640 fcs(8, point_cr_value[i],
1259 i ? current->point_cr_value[i - 1] + 1 : 0,
1260 MAX_UINT_BITS(8) - (current->num_cr_points - i - 1),
1261 1, i);
1262
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640 fbs(8, point_cr_scaling[i], 1, i);
1263 }
1264 }
1265
1266
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160 fb(2, grain_scaling_minus_8);
1267
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160 fb(2, ar_coeff_lag);
1268 160 num_pos_luma = 2 * current->ar_coeff_lag * (current->ar_coeff_lag + 1);
1269
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160 if (current->num_y_points) {
1270 160 num_pos_chroma = num_pos_luma + 1;
1271
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✓ Branch 1 taken 80 times.
4000 for (i = 0; i < num_pos_luma; i++)
1272
1/2
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3840 fbs(8, ar_coeffs_y_plus_128[i], 1, i);
1273 } else {
1274 num_pos_chroma = num_pos_luma;
1275 }
1276
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160 if (current->chroma_scaling_from_luma || current->num_cb_points) {
1277
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4160 for (i = 0; i < num_pos_chroma; i++)
1278
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4000 fbs(8, ar_coeffs_cb_plus_128[i], 1, i);
1279 }
1280
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160 if (current->chroma_scaling_from_luma || current->num_cr_points) {
1281
2/2
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4160 for (i = 0; i < num_pos_chroma; i++)
1282
1/2
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4000 fbs(8, ar_coeffs_cr_plus_128[i], 1, i);
1283 }
1284
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160 fb(2, ar_coeff_shift_minus_6);
1285
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160 fb(2, grain_scale_shift);
1286
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✗ Branch 1 not taken.
160 if (current->num_cb_points) {
1287
1/2
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160 fb(8, cb_mult);
1288
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160 fb(8, cb_luma_mult);
1289
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160 fb(9, cb_offset);
1290 }
1291
1/2
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✗ Branch 1 not taken.
160 if (current->num_cr_points) {
1292
1/2
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160 fb(8, cr_mult);
1293
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160 fb(8, cr_luma_mult);
1294
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160 fb(9, cr_offset);
1295 }
1296
1297
1/2
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160 flag(overlap_flag);
1298
1/2
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160 flag(clip_to_restricted_range);
1299
1300 160 return 0;
1301 }
1302
1303 3402 static int FUNC(uncompressed_header)(CodedBitstreamContext *ctx, RWContext *rw,
1304 AV1RawFrameHeader *current)
1305 {
1306 3402 CodedBitstreamAV1Context *priv = ctx->priv_data;
1307 const AV1RawSequenceHeader *seq;
1308 int id_len, diff_len, all_frames, frame_is_intra, order_hint_bits;
1309 int i, err;
1310
1311
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3402 if (!priv->sequence_header) {
1312 av_log(ctx->log_ctx, AV_LOG_ERROR, "No sequence header available: "
1313 "unable to decode frame header.\n");
1314 return AVERROR_INVALIDDATA;
1315 }
1316 3402 seq = priv->sequence_header;
1317
1318 3402 id_len = seq->additional_frame_id_length_minus_1 +
1319 3402 seq->delta_frame_id_length_minus_2 + 3;
1320 3402 all_frames = (1 << AV1_NUM_REF_FRAMES) - 1;
1321
1322
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3402 if (seq->reduced_still_picture_header) {
1323 infer(show_existing_frame, 0);
1324 infer(frame_type, AV1_FRAME_KEY);
1325 infer(show_frame, 1);
1326 infer(showable_frame, 0);
1327 frame_is_intra = 1;
1328
1329 } else {
1330
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3402 flag(show_existing_frame);
1331
1332
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✓ Branch 1 taken 1505 times.
3402 if (current->show_existing_frame) {
1333 AV1ReferenceFrameState *ref;
1334
1335
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392 fb(3, frame_to_show_map_idx);
1336 392 ref = &priv->ref[current->frame_to_show_map_idx];
1337
1338
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392 if (!ref->valid) {
1339 av_log(ctx->log_ctx, AV_LOG_ERROR, "Missing reference frame needed for "
1340 "show_existing_frame (frame_to_show_map_idx = %d).\n",
1341 current->frame_to_show_map_idx);
1342 return AVERROR_INVALIDDATA;
1343 }
1344
1345
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✓ Branch 1 taken 168 times.
392 if (seq->decoder_model_info_present_flag &&
1346
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56 !seq->timing_info.equal_picture_interval) {
1347
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56 fb(seq->decoder_model_info.frame_presentation_time_length_minus_1 + 1,
1348 frame_presentation_time);
1349 }
1350
1351
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392 if (seq->frame_id_numbers_present_flag)
1352 fb(id_len, display_frame_id);
1353
1354
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392 infer(frame_type, ref->frame_type);
1355
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392 if (current->frame_type == AV1_FRAME_KEY) {
1356 infer(refresh_frame_flags, all_frames);
1357
1358 // Section 7.21
1359 infer(current_frame_id, ref->frame_id);
1360 priv->upscaled_width = ref->upscaled_width;
1361 priv->frame_width = ref->frame_width;
1362 priv->frame_height = ref->frame_height;
1363 priv->render_width = ref->render_width;
1364 priv->render_height = ref->render_height;
1365 priv->bit_depth = ref->bit_depth;
1366 priv->order_hint = ref->order_hint;
1367 } else
1368
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✓ Branch 1 taken 47 times.
392 infer(refresh_frame_flags, 0);
1369
1370
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392 infer(frame_width_minus_1, ref->upscaled_width - 1);
1371
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392 infer(frame_height_minus_1, ref->frame_height - 1);
1372
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392 infer(render_width_minus_1, ref->render_width - 1);
1373
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392 infer(render_height_minus_1, ref->render_height - 1);
1374
1375 // Section 7.20
1376 392 goto update_refs;
1377 }
1378
1379
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3010 fb(2, frame_type);
1380
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6020 frame_is_intra = (current->frame_type == AV1_FRAME_INTRA_ONLY ||
1381
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✓ Branch 1 taken 1287 times.
3010 current->frame_type == AV1_FRAME_KEY);
1382
1383
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3010 flag(show_frame);
1384
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✓ Branch 1 taken 280 times.
3010 if (current->show_frame &&
1385
2/2
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✓ Branch 1 taken 901 times.
2450 seq->decoder_model_info_present_flag &&
1386
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648 !seq->timing_info.equal_picture_interval) {
1387
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648 fb(seq->decoder_model_info.frame_presentation_time_length_minus_1 + 1,
1388 frame_presentation_time);
1389 }
1390
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✓ Branch 1 taken 280 times.
3010 if (current->show_frame)
1391
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2450 infer(showable_frame, current->frame_type != AV1_FRAME_KEY);
1392 else
1393
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560 flag(showable_frame);
1394
1395
2/2
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✓ Branch 1 taken 4 times.
3010 if (current->frame_type == AV1_FRAME_SWITCH ||
1396
3/4
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✓ Branch 1 taken 1283 times.
✓ Branch 2 taken 218 times.
✗ Branch 3 not taken.
3002 (current->frame_type == AV1_FRAME_KEY && current->show_frame))
1397
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✓ Branch 1 taken 59 times.
444 infer(error_resilient_mode, 1);
1398 else
1399
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2566 flag(error_resilient_mode);
1400 }
1401
1402
3/4
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✓ Branch 2 taken 218 times.
✗ Branch 3 not taken.
3010 if (current->frame_type == AV1_FRAME_KEY && current->show_frame) {
1403
2/2
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✓ Branch 1 taken 218 times.
3924 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
1404 3488 priv->ref[i].valid = 0;
1405 3488 priv->ref[i].order_hint = 0;
1406 }
1407 }
1408
1409
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3010 flag(disable_cdf_update);
1410
1411
1/2
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3010 if (seq->seq_force_screen_content_tools ==
1412 AV1_SELECT_SCREEN_CONTENT_TOOLS) {
1413
1/2
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✓ Branch 2 taken 1505 times.
3010 flag(allow_screen_content_tools);
1414 } else {
1415 infer(allow_screen_content_tools,
1416 seq->seq_force_screen_content_tools);
1417 }
1418
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✓ Branch 1 taken 1462 times.
3010 if (current->allow_screen_content_tools) {
1419
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✗ Branch 1 not taken.
86 if (seq->seq_force_integer_mv == AV1_SELECT_INTEGER_MV)
1420
1/2
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86 flag(force_integer_mv);
1421 else
1422 infer(force_integer_mv, seq->seq_force_integer_mv);
1423 } else {
1424
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✓ Branch 1 taken 363 times.
2924 infer(force_integer_mv, 0);
1425 }
1426
1427
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3010 if (seq->frame_id_numbers_present_flag) {
1428 fb(id_len, current_frame_id);
1429
1430 diff_len = seq->delta_frame_id_length_minus_2 + 2;
1431 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
1432 if (current->current_frame_id > (1 << diff_len)) {
1433 if (priv->ref[i].frame_id > current->current_frame_id ||
1434 priv->ref[i].frame_id < (current->current_frame_id -
1435 (1 << diff_len)))
1436 priv->ref[i].valid = 0;
1437 } else {
1438 if (priv->ref[i].frame_id > current->current_frame_id &&
1439 priv->ref[i].frame_id < ((1 << id_len) +
1440 current->current_frame_id -
1441 (1 << diff_len)))
1442 priv->ref[i].valid = 0;
1443 }
1444 }
1445 } else {
1446
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3010 infer(current_frame_id, 0);
1447 }
1448
1449
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3010 if (current->frame_type == AV1_FRAME_SWITCH)
1450
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8 infer(frame_size_override_flag, 1);
1451
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3002 else if(seq->reduced_still_picture_header)
1452 infer(frame_size_override_flag, 0);
1453 else
1454
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✓ Branch 2 taken 1501 times.
3002 flag(frame_size_override_flag);
1455
1456 3010 order_hint_bits =
1457
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✗ Branch 1 not taken.
3010 seq->enable_order_hint ? seq->order_hint_bits_minus_1 + 1 : 0;
1458
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✗ Branch 1 not taken.
3010 if (order_hint_bits > 0)
1459
1/2
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3010 fb(order_hint_bits, order_hint);
1460 else
1461 infer(order_hint, 0);
1462 3010 priv->order_hint = current->order_hint;
1463
1464
4/4
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✓ Branch 3 taken 1283 times.
3010 if (frame_is_intra || current->error_resilient_mode)
1465
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444 infer(primary_ref_frame, AV1_PRIMARY_REF_NONE);
1466 else
1467
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2566 fb(3, primary_ref_frame);
1468
1469
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✓ Branch 1 taken 1117 times.
3010 if (seq->decoder_model_info_present_flag) {
1470
1/2
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776 flag(buffer_removal_time_present_flag);
1471
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✗ Branch 1 not taken.
776 if (current->buffer_removal_time_present_flag) {
1472
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✓ Branch 1 taken 388 times.
1552 for (i = 0; i <= seq->operating_points_cnt_minus_1; i++) {
1473
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776 if (seq->decoder_model_present_for_this_op[i]) {
1474 776 int op_pt_idc = seq->operating_point_idc[i];
1475 776 int in_temporal_layer = (op_pt_idc >> priv->temporal_id ) & 1;
1476 776 int in_spatial_layer = (op_pt_idc >> (priv->spatial_id + 8)) & 1;
1477
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776 if (seq->operating_point_idc[i] == 0 ||
1478 (in_temporal_layer && in_spatial_layer)) {
1479
1/2
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✓ Branch 2 taken 388 times.
776 fbs(seq->decoder_model_info.buffer_removal_time_length_minus_1 + 1,
1480 buffer_removal_time[i], 1, i);
1481 }
1482 }
1483 }
1484 }
1485 }
1486
1487
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3010 if (current->frame_type == AV1_FRAME_SWITCH ||
1488
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3002 (current->frame_type == AV1_FRAME_KEY && current->show_frame))
1489
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444 infer(refresh_frame_flags, all_frames);
1490 else
1491
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2566 fb(8, refresh_frame_flags);
1492
1493
3/4
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3010 if (!frame_is_intra || current->refresh_frame_flags != all_frames) {
1494
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2574 if (seq->enable_order_hint) {
1495
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✓ Branch 1 taken 1287 times.
23166 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
1496
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20592 if (current->error_resilient_mode)
1497
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64 fbs(order_hint_bits, ref_order_hint[i], 1, i);
1498 else
1499
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20528 infer(ref_order_hint[i], priv->ref[i].order_hint);
1500
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20592 if (current->ref_order_hint[i] != priv->ref[i].order_hint)
1501 priv->ref[i].valid = 0;
1502 }
1503 }
1504 }
1505
1506
2/2
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3010 if (current->frame_type == AV1_FRAME_KEY ||
1507
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2574 current->frame_type == AV1_FRAME_INTRA_ONLY) {
1508
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436 CHECK(FUNC(frame_size)(ctx, rw, current));
1509
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436 CHECK(FUNC(render_size)(ctx, rw, current));
1510
1511
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436 if (current->allow_screen_content_tools &&
1512
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8 priv->upscaled_width == priv->frame_width)
1513
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8 flag(allow_intrabc);
1514 else
1515
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428 infer(allow_intrabc, 0);
1516
1517 } else {
1518
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2574 if (!seq->enable_order_hint) {
1519 infer(frame_refs_short_signaling, 0);
1520 } else {
1521
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2574 flag(frame_refs_short_signaling);
1522
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✓ Branch 1 taken 1231 times.
2574 if (current->frame_refs_short_signaling) {
1523
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112 fb(3, last_frame_idx);
1524
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112 fb(3, golden_frame_idx);
1525
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112 CHECK(FUNC(set_frame_refs)(ctx, rw, current));
1526 }
1527 }
1528
1529
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20592 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
1530
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✓ Branch 1 taken 392 times.
18018 if (!current->frame_refs_short_signaling)
1531
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17234 fbs(3, ref_frame_idx[i], 1, i);
1532
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18018 if (seq->frame_id_numbers_present_flag) {
1533 fbs(seq->delta_frame_id_length_minus_2 + 2,
1534 delta_frame_id_minus1[i], 1, i);
1535 }
1536 }
1537
1538
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✓ Branch 1 taken 1223 times.
2574 if (current->frame_size_override_flag &&
1539
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✓ Branch 1 taken 4 times.
128 !current->error_resilient_mode) {
1540
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120 CHECK(FUNC(frame_size_with_refs)(ctx, rw, current));
1541 } else {
1542
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2454 CHECK(FUNC(frame_size)(ctx, rw, current));
1543
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2454 CHECK(FUNC(render_size)(ctx, rw, current));
1544 }
1545
1546
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2574 if (current->force_integer_mv)
1547 infer(allow_high_precision_mv, 0);
1548 else
1549
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2574 flag(allow_high_precision_mv);
1550
1551
1/2
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2574 CHECK(FUNC(interpolation_filter)(ctx, rw, current));
1552
1553
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2574 flag(is_motion_mode_switchable);
1554
1555
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✓ Branch 1 taken 4 times.
2574 if (current->error_resilient_mode ||
1556
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✓ Branch 1 taken 1163 times.
2566 !seq->enable_ref_frame_mvs)
1557
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248 infer(use_ref_frame_mvs, 0);
1558 else
1559
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2326 flag(use_ref_frame_mvs);
1560
1561
1/2
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2574 infer(allow_intrabc, 0);
1562 }
1563
1564 if (!frame_is_intra) {
1565 // Derive reference frame sign biases.
1566 }
1567
1568
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3010 if (seq->reduced_still_picture_header || current->disable_cdf_update)
1569 infer(disable_frame_end_update_cdf, 1);
1570 else
1571
1/2
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3010 flag(disable_frame_end_update_cdf);
1572
1573 3010 if (current->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
1574 // Init non-coeff CDFs.
1575 // Setup past independence.
1576 } else {
1577 // Load CDF tables from previous frame.
1578 // Load params from previous frame.
1579 }
1580
1581 3010 if (current->use_ref_frame_mvs) {
1582 // Perform motion field estimation process.
1583 }
1584
1585
1/2
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3010 CHECK(FUNC(tile_info)(ctx, rw, current));
1586
1587
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3010 CHECK(FUNC(quantization_params)(ctx, rw, current));
1588
1589
1/2
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3010 CHECK(FUNC(segmentation_params)(ctx, rw, current));
1590
1591
1/2
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3010 CHECK(FUNC(delta_q_params)(ctx, rw, current));
1592
1593
1/2
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3010 CHECK(FUNC(delta_lf_params)(ctx, rw, current));
1594
1595 // Init coeff CDFs / load previous segments.
1596
1597 3010 priv->coded_lossless = 1;
1598
2/2
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27090 for (i = 0; i < AV1_MAX_SEGMENTS; i++) {
1599 int qindex;
1600
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24080 if (current->feature_enabled[i][AV1_SEG_LVL_ALT_Q]) {
1601 qindex = (current->base_q_idx +
1602 current->feature_value[i][AV1_SEG_LVL_ALT_Q]);
1603 } else {
1604 24080 qindex = current->base_q_idx;
1605 }
1606 24080 qindex = av_clip_uintp2(qindex, 8);
1607
1608
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24080 if (qindex || current->delta_q_y_dc ||
1609 current->delta_q_u_ac || current->delta_q_u_dc ||
1610 current->delta_q_v_ac || current->delta_q_v_dc) {
1611 24080 priv->coded_lossless = 0;
1612 }
1613 }
1614
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3010 priv->all_lossless = priv->coded_lossless &&
1615 priv->frame_width == priv->upscaled_width;
1616
1617
1/2
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3010 CHECK(FUNC(loop_filter_params)(ctx, rw, current));
1618
1619
1/2
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3010 CHECK(FUNC(cdef_params)(ctx, rw, current));
1620
1621
1/2
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3010 CHECK(FUNC(lr_params)(ctx, rw, current));
1622
1623
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3010 CHECK(FUNC(read_tx_mode)(ctx, rw, current));
1624
1625
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3010 CHECK(FUNC(frame_reference_mode)(ctx, rw, current));
1626
1627
1/2
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3010 CHECK(FUNC(skip_mode_params)(ctx, rw, current));
1628
1629
4/4
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✓ Branch 1 taken 218 times.
✓ Branch 2 taken 1283 times.
✓ Branch 3 taken 4 times.
3010 if (frame_is_intra || current->error_resilient_mode ||
1630
1/2
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✓ Branch 1 taken 1283 times.
2566 !seq->enable_warped_motion)
1631
1/2
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✓ Branch 1 taken 59 times.
444 infer(allow_warped_motion, 0);
1632 else
1633
1/2
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2566 flag(allow_warped_motion);
1634
1635
1/2
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3010 flag(reduced_tx_set);
1636
1637
1/2
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3010 CHECK(FUNC(global_motion_params)(ctx, rw, current));
1638
1639
1/2
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3010 CHECK(FUNC(film_grain_params)(ctx, rw, &current->film_grain, current));
1640
1641 3010 av_log(ctx->log_ctx, AV_LOG_DEBUG, "Frame %d: size %dx%d "
1642 "upscaled %d render %dx%d subsample %dx%d "
1643 "bitdepth %d tiles %dx%d.\n", priv->order_hint,
1644 priv->frame_width, priv->frame_height, priv->upscaled_width,
1645 priv->render_width, priv->render_height,
1646 3010 seq->color_config.subsampling_x + 1,
1647 3010 seq->color_config.subsampling_y + 1, priv->bit_depth,
1648 priv->tile_rows, priv->tile_cols);
1649
1650 3402 update_refs:
1651
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✓ Branch 1 taken 1701 times.
30618 for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
1652
2/2
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✓ Branch 1 taken 10601 times.
27216 if (current->refresh_frame_flags & (1 << i)) {
1653 6014 priv->ref[i] = (AV1ReferenceFrameState) {
1654 .valid = 1,
1655 6014 .frame_id = current->current_frame_id,
1656 6014 .upscaled_width = priv->upscaled_width,
1657 6014 .frame_width = priv->frame_width,
1658 6014 .frame_height = priv->frame_height,
1659 6014 .render_width = priv->render_width,
1660 6014 .render_height = priv->render_height,
1661 6014 .frame_type = current->frame_type,
1662 6014 .subsampling_x = seq->color_config.subsampling_x,
1663 6014 .subsampling_y = seq->color_config.subsampling_y,
1664 6014 .bit_depth = priv->bit_depth,
1665 6014 .order_hint = priv->order_hint,
1666 };
1667 6014 memcpy(priv->ref[i].loop_filter_ref_deltas, current->loop_filter_ref_deltas,
1668 sizeof(current->loop_filter_ref_deltas));
1669 6014 memcpy(priv->ref[i].loop_filter_mode_deltas, current->loop_filter_mode_deltas,
1670 sizeof(current->loop_filter_mode_deltas));
1671 6014 memcpy(priv->ref[i].feature_enabled, current->feature_enabled,
1672 sizeof(current->feature_enabled));
1673 6014 memcpy(priv->ref[i].feature_value, current->feature_value,
1674 sizeof(current->feature_value));
1675 }
1676 }
1677
1678 3402 return 0;
1679 }
1680
1681 3402 static int FUNC(frame_header_obu)(CodedBitstreamContext *ctx, RWContext *rw,
1682 AV1RawFrameHeader *current, int redundant,
1683 AVBufferRef *rw_buffer_ref)
1684 {
1685 3402 CodedBitstreamAV1Context *priv = ctx->priv_data;
1686 int start_pos, fh_bits, fh_bytes, err;
1687 uint8_t *fh_start;
1688
1689
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3402 if (priv->seen_frame_header) {
1690 if (!redundant) {
1691 av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid repeated "
1692 "frame header OBU.\n");
1693 return AVERROR_INVALIDDATA;
1694 } else {
1695 GetBitContext fh;
1696 size_t i, b;
1697 uint32_t val;
1698
1699 HEADER("Redundant Frame Header");
1700
1701 av_assert0(priv->frame_header_ref && priv->frame_header);
1702
1703 init_get_bits(&fh, priv->frame_header,
1704 priv->frame_header_size);
1705 for (i = 0; i < priv->frame_header_size; i += 8) {
1706 b = FFMIN(priv->frame_header_size - i, 8);
1707 val = get_bits(&fh, b);
1708 xf(b, frame_header_copy[i],
1709 val, val, val, 1, i / 8);
1710 }
1711 }
1712 } else {
1713
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3402 if (redundant)
1714 HEADER("Redundant Frame Header (used as Frame Header)");
1715 else
1716 3402 HEADER("Frame Header");
1717
1718 #ifdef READ
1719 2560 start_pos = get_bits_count(rw);
1720 #else
1721 842 start_pos = put_bits_count(rw);
1722 #endif
1723
1724
1/2
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3402 CHECK(FUNC(uncompressed_header)(ctx, rw, current));
1725
1726 3402 priv->tile_num = 0;
1727
1728
2/2
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✓ Branch 1 taken 1505 times.
3402 if (current->show_existing_frame) {
1729 392 priv->seen_frame_header = 0;
1730 } else {
1731 3010 priv->seen_frame_header = 1;
1732
1733 3010 av_buffer_unref(&priv->frame_header_ref);
1734
1735 #ifdef READ
1736 2262 fh_bits = get_bits_count(rw) - start_pos;
1737 2262 fh_start = (uint8_t*)rw->buffer + start_pos / 8;
1738 #else
1739 // Need to flush the bitwriter so that we can copy its output,
1740 // but use a copy so we don't affect the caller's structure.
1741 {
1742 748 PutBitContext tmp = *rw;
1743 748 flush_put_bits(&tmp);
1744 }
1745
1746 748 fh_bits = put_bits_count(rw) - start_pos;
1747 748 fh_start = rw->buf + start_pos / 8;
1748 #endif
1749 3010 fh_bytes = (fh_bits + 7) / 8;
1750
1751 3010 priv->frame_header_size = fh_bits;
1752
1753
2/2
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3010 if (rw_buffer_ref) {
1754 2262 priv->frame_header_ref = av_buffer_ref(rw_buffer_ref);
1755
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2262 if (!priv->frame_header_ref)
1756 return AVERROR(ENOMEM);
1757 2262 priv->frame_header = fh_start;
1758 } else {
1759 748 priv->frame_header_ref =
1760 748 av_buffer_alloc(fh_bytes + AV_INPUT_BUFFER_PADDING_SIZE);
1761
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748 if (!priv->frame_header_ref)
1762 return AVERROR(ENOMEM);
1763 748 priv->frame_header = priv->frame_header_ref->data;
1764 748 memcpy(priv->frame_header, fh_start, fh_bytes);
1765 }
1766 }
1767 }
1768
1769 3402 return 0;
1770 }
1771
1772 3522 static int FUNC(tile_group_obu)(CodedBitstreamContext *ctx, RWContext *rw,
1773 AV1RawTileGroup *current)
1774 {
1775 3522 CodedBitstreamAV1Context *priv = ctx->priv_data;
1776 int num_tiles, tile_bits;
1777 int err;
1778
1779 3522 HEADER("Tile Group");
1780
1781 3522 num_tiles = priv->tile_cols * priv->tile_rows;
1782
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3522 if (num_tiles > 1)
1783
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1126 flag(tile_start_and_end_present_flag);
1784 else
1785
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2396 infer(tile_start_and_end_present_flag, 0);
1786
1787
4/4
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✓ Branch 3 taken 416 times.
3522 if (num_tiles == 1 || !current->tile_start_and_end_present_flag) {
1788
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2690 infer(tg_start, 0);
1789
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2690 infer(tg_end, num_tiles - 1);
1790 } else {
1791 832 tile_bits = cbs_av1_tile_log2(1, priv->tile_cols) +
1792 832 cbs_av1_tile_log2(1, priv->tile_rows);
1793
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832 fc(tile_bits, tg_start, priv->tile_num, num_tiles - 1);
1794
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832 fc(tile_bits, tg_end, current->tg_start, num_tiles - 1);
1795 }
1796
1797 3522 priv->tile_num = current->tg_end + 1;
1798
1799
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3522 CHECK(FUNC(byte_alignment)(ctx, rw));
1800
1801 // Reset header for next frame.
1802
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3522 if (current->tg_end == num_tiles - 1)
1803 3010 priv->seen_frame_header = 0;
1804
1805 // Tile data follows.
1806
1807 3522 return 0;
1808 }
1809
1810 2690 static int FUNC(frame_obu)(CodedBitstreamContext *ctx, RWContext *rw,
1811 AV1RawFrame *current,
1812 AVBufferRef *rw_buffer_ref)
1813 {
1814 int err;
1815
1816
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2690 CHECK(FUNC(frame_header_obu)(ctx, rw, &current->header,
1817 0, rw_buffer_ref));
1818
1819
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2690 CHECK(FUNC(byte_alignment)(ctx, rw));
1820
1821
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2690 CHECK(FUNC(tile_group_obu)(ctx, rw, &current->tile_group));
1822
1823 2690 return 0;
1824 }
1825
1826 static int FUNC(tile_list_obu)(CodedBitstreamContext *ctx, RWContext *rw,
1827 AV1RawTileList *current)
1828 {
1829 int err;
1830
1831 fb(8, output_frame_width_in_tiles_minus_1);
1832 fb(8, output_frame_height_in_tiles_minus_1);
1833
1834 fb(16, tile_count_minus_1);
1835
1836 // Tile data follows.
1837
1838 return 0;
1839 }
1840
1841 32 static int FUNC(metadata_hdr_cll)(CodedBitstreamContext *ctx, RWContext *rw,
1842 AV1RawMetadataHDRCLL *current)
1843 {
1844 int err;
1845
1846
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32 fb(16, max_cll);
1847
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32 fb(16, max_fall);
1848
1849 32 return 0;
1850 }
1851
1852 32 static int FUNC(metadata_hdr_mdcv)(CodedBitstreamContext *ctx, RWContext *rw,
1853 AV1RawMetadataHDRMDCV *current)
1854 {
1855 int err, i;
1856
1857
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128 for (i = 0; i < 3; i++) {
1858
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96 fbs(16, primary_chromaticity_x[i], 1, i);
1859
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96 fbs(16, primary_chromaticity_y[i], 1, i);
1860 }
1861
1862
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32 fb(16, white_point_chromaticity_x);
1863
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32 fb(16, white_point_chromaticity_y);
1864
1865
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32 fc(32, luminance_max, 1, MAX_UINT_BITS(32));
1866 // luminance_min must be lower than luminance_max. Convert luminance_max from
1867 // 24.8 fixed point to 18.14 fixed point in order to compare them.
1868
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32 fc(32, luminance_min, 0, FFMIN(((uint64_t)current->luminance_max << 6) - 1,
1869 MAX_UINT_BITS(32)));
1870
1871 32 return 0;
1872 }
1873
1874 static int FUNC(scalability_structure)(CodedBitstreamContext *ctx, RWContext *rw,
1875 AV1RawMetadataScalability *current)
1876 {
1877 CodedBitstreamAV1Context *priv = ctx->priv_data;
1878 const AV1RawSequenceHeader *seq;
1879 int err, i, j;
1880
1881 if (!priv->sequence_header) {
1882 av_log(ctx->log_ctx, AV_LOG_ERROR, "No sequence header available: "
1883 "unable to parse scalability metadata.\n");
1884 return AVERROR_INVALIDDATA;
1885 }
1886 seq = priv->sequence_header;
1887
1888 fb(2, spatial_layers_cnt_minus_1);
1889 flag(spatial_layer_dimensions_present_flag);
1890 flag(spatial_layer_description_present_flag);
1891 flag(temporal_group_description_present_flag);
1892 fc(3, scalability_structure_reserved_3bits, 0, 0);
1893 if (current->spatial_layer_dimensions_present_flag) {
1894 for (i = 0; i <= current->spatial_layers_cnt_minus_1; i++) {
1895 fcs(16, spatial_layer_max_width[i],
1896 0, seq->max_frame_width_minus_1 + 1, 1, i);
1897 fcs(16, spatial_layer_max_height[i],
1898 0, seq->max_frame_height_minus_1 + 1, 1, i);
1899 }
1900 }
1901 if (current->spatial_layer_description_present_flag) {
1902 for (i = 0; i <= current->spatial_layers_cnt_minus_1; i++)
1903 fbs(8, spatial_layer_ref_id[i], 1, i);
1904 }
1905 if (current->temporal_group_description_present_flag) {
1906 fb(8, temporal_group_size);
1907 for (i = 0; i < current->temporal_group_size; i++) {
1908 fbs(3, temporal_group_temporal_id[i], 1, i);
1909 flags(temporal_group_temporal_switching_up_point_flag[i], 1, i);
1910 flags(temporal_group_spatial_switching_up_point_flag[i], 1, i);
1911 fbs(3, temporal_group_ref_cnt[i], 1, i);
1912 for (j = 0; j < current->temporal_group_ref_cnt[i]; j++) {
1913 fbs(8, temporal_group_ref_pic_diff[i][j], 2, i, j);
1914 }
1915 }
1916 }
1917
1918 return 0;
1919 }
1920
1921 static int FUNC(metadata_scalability)(CodedBitstreamContext *ctx, RWContext *rw,
1922 AV1RawMetadataScalability *current)
1923 {
1924 int err;
1925
1926 fb(8, scalability_mode_idc);
1927
1928 if (current->scalability_mode_idc == AV1_SCALABILITY_SS)
1929 CHECK(FUNC(scalability_structure)(ctx, rw, current));
1930
1931 return 0;
1932 }
1933
1934 static int FUNC(metadata_itut_t35)(CodedBitstreamContext *ctx, RWContext *rw,
1935 AV1RawMetadataITUTT35 *current)
1936 {
1937 int err;
1938 size_t i;
1939
1940 fb(8, itu_t_t35_country_code);
1941 if (current->itu_t_t35_country_code == 0xff)
1942 fb(8, itu_t_t35_country_code_extension_byte);
1943
1944 #ifdef READ
1945 // The payload runs up to the start of the trailing bits, but there might
1946 // be arbitrarily many trailing zeroes so we need to read through twice.
1947 current->payload_size = cbs_av1_get_payload_bytes_left(rw);
1948
1949 current->payload_ref = av_buffer_alloc(current->payload_size);
1950 if (!current->payload_ref)
1951 return AVERROR(ENOMEM);
1952 current->payload = current->payload_ref->data;
1953 #endif
1954
1955 for (i = 0; i < current->payload_size; i++)
1956 xf(8, itu_t_t35_payload_bytes[i], current->payload[i],
1957 0x00, 0xff, 1, i);
1958
1959 return 0;
1960 }
1961
1962 static int FUNC(metadata_timecode)(CodedBitstreamContext *ctx, RWContext *rw,
1963 AV1RawMetadataTimecode *current)
1964 {
1965 int err;
1966
1967 fb(5, counting_type);
1968 flag(full_timestamp_flag);
1969 flag(discontinuity_flag);
1970 flag(cnt_dropped_flag);
1971 fb(9, n_frames);
1972
1973 if (current->full_timestamp_flag) {
1974 fc(6, seconds_value, 0, 59);
1975 fc(6, minutes_value, 0, 59);
1976 fc(5, hours_value, 0, 23);
1977 } else {
1978 flag(seconds_flag);
1979 if (current->seconds_flag) {
1980 fc(6, seconds_value, 0, 59);
1981 flag(minutes_flag);
1982 if (current->minutes_flag) {
1983 fc(6, minutes_value, 0, 59);
1984 flag(hours_flag);
1985 if (current->hours_flag)
1986 fc(5, hours_value, 0, 23);
1987 }
1988 }
1989 }
1990
1991 fb(5, time_offset_length);
1992 if (current->time_offset_length > 0)
1993 fb(current->time_offset_length, time_offset_value);
1994 else
1995 infer(time_offset_length, 0);
1996
1997 return 0;
1998 }
1999
2000 64 static int FUNC(metadata_obu)(CodedBitstreamContext *ctx, RWContext *rw,
2001 AV1RawMetadata *current)
2002 {
2003 int err;
2004
2005
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64 leb128(metadata_type);
2006
2007
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64 switch (current->metadata_type) {
2008 32 case AV1_METADATA_TYPE_HDR_CLL:
2009
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32 CHECK(FUNC(metadata_hdr_cll)(ctx, rw, &current->metadata.hdr_cll));
2010 32 break;
2011 32 case AV1_METADATA_TYPE_HDR_MDCV:
2012
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32 CHECK(FUNC(metadata_hdr_mdcv)(ctx, rw, &current->metadata.hdr_mdcv));
2013 32 break;
2014 case AV1_METADATA_TYPE_SCALABILITY:
2015 CHECK(FUNC(metadata_scalability)(ctx, rw, &current->metadata.scalability));
2016 break;
2017 case AV1_METADATA_TYPE_ITUT_T35:
2018 CHECK(FUNC(metadata_itut_t35)(ctx, rw, &current->metadata.itut_t35));
2019 break;
2020 case AV1_METADATA_TYPE_TIMECODE:
2021 CHECK(FUNC(metadata_timecode)(ctx, rw, &current->metadata.timecode));
2022 break;
2023 default:
2024 // Unknown metadata type.
2025 return AVERROR_PATCHWELCOME;
2026 }
2027
2028 64 return 0;
2029 }
2030
2031 static int FUNC(padding_obu)(CodedBitstreamContext *ctx, RWContext *rw,
2032 AV1RawPadding *current)
2033 {
2034 int i, err;
2035
2036 HEADER("Padding");
2037
2038 #ifdef READ
2039 // The payload runs up to the start of the trailing bits, but there might
2040 // be arbitrarily many trailing zeroes so we need to read through twice.
2041 current->payload_size = cbs_av1_get_payload_bytes_left(rw);
2042
2043 current->payload_ref = av_buffer_alloc(current->payload_size);
2044 if (!current->payload_ref)
2045 return AVERROR(ENOMEM);
2046 current->payload = current->payload_ref->data;
2047 #endif
2048
2049 for (i = 0; i < current->payload_size; i++)
2050 xf(8, obu_padding_byte[i], current->payload[i], 0x00, 0xff, 1, i);
2051
2052 return 0;
2053 }
2054