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
20
23
25
30 {
36
40
41 memset(
vps, 0,
sizeof(*
vps));
42 memset(
sps, 0,
sizeof(*
sps));
43 memset(
pps, 0,
sizeof(*
pps));
44
47 if (
desc->nb_components == 1) {
48 chroma_format = 0;
49 } else {
50 if (
desc->log2_chroma_w == 1 &&
desc->log2_chroma_h == 1) {
51 chroma_format = 1;
52 }
else if (
desc->log2_chroma_w == 1 &&
desc->log2_chroma_h == 0) {
53 chroma_format = 2;
54 }
else if (
desc->log2_chroma_w == 0 &&
desc->log2_chroma_h == 0) {
55 chroma_format = 3;
56 } else {
58 "%s is not supported.\n",
desc->name);
60 }
61 }
63
64
65 // VPS
66
69 .nuh_layer_id = 0,
70 .nuh_temporal_id_plus1 = 1,
71 };
72
73 vps->vps_video_parameter_set_id = 0;
74
75 vps->vps_base_layer_internal_flag = 1;
76 vps->vps_base_layer_available_flag = 1;
77 vps->vps_max_layers_minus1 = 0;
78 vps->vps_max_sub_layers_minus1 = 0;
79 vps->vps_temporal_id_nesting_flag = 1;
80
84
86
92 }
93
98
103
107
110
112
115 } else {
117
125 } else {
127 "any normal level; using level 8.5.\n");
129 // The tier flag must be set in level 8.5.
131 }
132 }
133
134 vps->vps_sub_layer_ordering_info_present_flag = 0;
135 vps->vps_max_dec_pic_buffering_minus1[0] = base_ctx->
max_b_depth + 1;
137 vps->vps_max_latency_increase_plus1[0] = 0;
138
139 vps->vps_max_layer_id = 0;
140 vps->vps_num_layer_sets_minus1 = 0;
141 vps->layer_id_included_flag[0][0] = 1;
142
143 vps->vps_timing_info_present_flag = 1;
147 vps->vps_poc_proportional_to_timing_flag = 1;
148 vps->vps_num_ticks_poc_diff_one_minus1 = 0;
149 } else {
152 vps->vps_poc_proportional_to_timing_flag = 0;
153 }
154 vps->vps_num_hrd_parameters = 0;
155
156
157 // SPS
158
161 .nuh_layer_id = 0,
162 .nuh_temporal_id_plus1 = 1,
163 };
164
165 sps->sps_video_parameter_set_id =
vps->vps_video_parameter_set_id;
166
167 sps->sps_max_sub_layers_minus1 =
vps->vps_max_sub_layers_minus1;
168 sps->sps_temporal_id_nesting_flag =
vps->vps_temporal_id_nesting_flag;
169
170 sps->profile_tier_level =
vps->profile_tier_level;
171
172 sps->sps_seq_parameter_set_id = 0;
173
174 sps->chroma_format_idc = chroma_format;
175 sps->separate_colour_plane_flag = 0;
176
179
182 sps->conformance_window_flag = 1;
183 sps->conf_win_left_offset = 0;
184 sps->conf_win_right_offset =
186 sps->conf_win_top_offset = 0;
187 sps->conf_win_bottom_offset =
189 } else {
190 sps->conformance_window_flag = 0;
191 }
192
195
196 sps->log2_max_pic_order_cnt_lsb_minus4 = 8;
197
198 sps->sps_sub_layer_ordering_info_present_flag =
199 vps->vps_sub_layer_ordering_info_present_flag;
200 for (
i = 0;
i <=
sps->sps_max_sub_layers_minus1;
i++) {
201 sps->sps_max_dec_pic_buffering_minus1[
i] =
202 vps->vps_max_dec_pic_buffering_minus1[
i];
203 sps->sps_max_num_reorder_pics[
i] =
204 vps->vps_max_num_reorder_pics[
i];
205 sps->sps_max_latency_increase_plus1[
i] =
206 vps->vps_max_latency_increase_plus1[
i];
207 }
208
209 // These values come from the capabilities of the first encoder
210 // implementation in the i965 driver on Intel Skylake. They may
211 // fail badly with other platforms or drivers.
212 // CTB size from 8x8 to 32x32.
213 sps->log2_min_luma_coding_block_size_minus3 = 0;
214 sps->log2_diff_max_min_luma_coding_block_size = 2;
215 // Transform size from 4x4 to 32x32.
216 sps->log2_min_luma_transform_block_size_minus2 = 0;
217 sps->log2_diff_max_min_luma_transform_block_size = 3;
218 // Full transform hierarchy allowed (2-5).
219 sps->max_transform_hierarchy_depth_inter = 3;
220 sps->max_transform_hierarchy_depth_intra = 3;
221 // AMP works.
222 sps->amp_enabled_flag = 1;
223 // SAO and temporal MVP do not work.
224 sps->sample_adaptive_offset_enabled_flag = 0;
225 sps->sps_temporal_mvp_enabled_flag = 0;
226
227 sps->pcm_enabled_flag = 0;
228
229 // STRPSs should ideally be here rather than defined individually in
230 // each slice, but the structure isn't completely fixed so for now
231 // don't bother.
232 sps->num_short_term_ref_pic_sets = 0;
233 sps->long_term_ref_pics_present_flag = 0;
234
235 sps->vui_parameters_present_flag = 1;
236
246 break;
247 }
248 }
253 }
255 }
256
257 // Unspecified video format, from table E-2.
271
277 }
278
285
293
294
295 // PPS
296
299 .nuh_layer_id = 0,
300 .nuh_temporal_id_plus1 = 1,
301 };
302
303 pps->pps_pic_parameter_set_id = 0;
304 pps->pps_seq_parameter_set_id =
sps->sps_seq_parameter_set_id;
305
306 pps->num_ref_idx_l0_default_active_minus1 = 0;
307 pps->num_ref_idx_l1_default_active_minus1 = 0;
308
309 pps->init_qp_minus26 =
opts->fixed_qp_idr - 26;
310
311 pps->cu_qp_delta_enabled_flag =
opts->cu_qp_delta_enabled_flag;
312 pps->diff_cu_qp_delta_depth = 0;
313
314 if (
opts->tile_rows &&
opts->tile_cols) {
315 int uniform_spacing;
316
317 pps->tiles_enabled_flag = 1;
318 pps->num_tile_columns_minus1 =
opts->tile_cols - 1;
319 pps->num_tile_rows_minus1 =
opts->tile_rows - 1;
320
321 // Test whether the spacing provided matches the H.265 uniform
322 // spacing, and set the flag if it does.
323 uniform_spacing = 1;
324 for (
i = 0;
i <=
pps->num_tile_columns_minus1 &&
325 uniform_spacing;
i++) {
326 if (
opts->col_width[
i] !=
327 (
i + 1) *
opts->slice_block_cols /
opts->tile_cols -
328 i *
opts->slice_block_cols /
opts->tile_cols)
329 uniform_spacing = 0;
330 }
331 for (
i = 0;
i <=
pps->num_tile_rows_minus1 &&
332 uniform_spacing;
i++) {
333 if (
opts->row_height[
i] !=
334 (
i + 1) *
opts->slice_block_rows /
opts->tile_rows -
335 i *
opts->slice_block_rows /
opts->tile_rows)
336 uniform_spacing = 0;
337 }
338 pps->uniform_spacing_flag = uniform_spacing;
339
340 for (
i = 0;
i <=
pps->num_tile_columns_minus1;
i++)
341 pps->column_width_minus1[
i] =
opts->col_width[
i] - 1;
342 for (
i = 0;
i <=
pps->num_tile_rows_minus1;
i++)
343 pps->row_height_minus1[
i] =
opts->row_height[
i] - 1;
344
345 pps->loop_filter_across_tiles_enabled_flag = 1;
346 }
347
348 pps->pps_loop_filter_across_slices_enabled_flag = 1;
349
350 return 0;
351 }