Lines Matching defs:rbsp
25 #include "nal-rbsp.h"
38 static void nal_hevc_write_start_code_prefix(struct rbsp *rbsp)
40 u8 *p = rbsp->data + DIV_ROUND_UP(rbsp->pos, 8);
43 if (DIV_ROUND_UP(rbsp->pos, 8) + i > rbsp->size) {
44 rbsp->error = -EINVAL;
53 rbsp->pos += i * 8;
56 static void nal_hevc_read_start_code_prefix(struct rbsp *rbsp)
58 u8 *p = rbsp->data + DIV_ROUND_UP(rbsp->pos, 8);
61 if (DIV_ROUND_UP(rbsp->pos, 8) + i > rbsp->size) {
62 rbsp->error = -EINVAL;
67 rbsp->error = -EINVAL;
71 rbsp->pos += i * 8;
74 static void nal_hevc_write_filler_data(struct rbsp *rbsp)
76 u8 *p = rbsp->data + DIV_ROUND_UP(rbsp->pos, 8);
80 i = rbsp->size - DIV_ROUND_UP(rbsp->pos, 8) - 1;
82 rbsp->pos += i * 8;
85 static void nal_hevc_read_filler_data(struct rbsp *rbsp)
87 u8 *p = rbsp->data + DIV_ROUND_UP(rbsp->pos, 8);
90 if (DIV_ROUND_UP(rbsp->pos, 8) > rbsp->size) {
91 rbsp->error = -EINVAL;
96 rbsp->pos += 8;
100 static void nal_hevc_rbsp_profile_tier_level(struct rbsp *rbsp,
106 rbsp_bits(rbsp, 2, &ptl->general_profile_space);
107 rbsp_bit(rbsp, &ptl->general_tier_flag);
108 rbsp_bits(rbsp, 5, &ptl->general_profile_idc);
110 rbsp_bit(rbsp, &ptl->general_profile_compatibility_flag[i]);
111 rbsp_bit(rbsp, &ptl->general_progressive_source_flag);
112 rbsp_bit(rbsp, &ptl->general_interlaced_source_flag);
113 rbsp_bit(rbsp, &ptl->general_non_packed_constraint_flag);
114 rbsp_bit(rbsp, &ptl->general_frame_only_constraint_flag);
129 rbsp_bit(rbsp, &ptl->general_max_12bit_constraint_flag);
130 rbsp_bit(rbsp, &ptl->general_max_10bit_constraint_flag);
131 rbsp_bit(rbsp, &ptl->general_max_8bit_constraint_flag);
132 rbsp_bit(rbsp, &ptl->general_max_422chroma_constraint_flag);
133 rbsp_bit(rbsp, &ptl->general_max_420chroma_constraint_flag);
134 rbsp_bit(rbsp, &ptl->general_max_monochrome_constraint_flag);
135 rbsp_bit(rbsp, &ptl->general_intra_constraint_flag);
136 rbsp_bit(rbsp, &ptl->general_one_picture_only_constraint_flag);
137 rbsp_bit(rbsp, &ptl->general_lower_bit_rate_constraint_flag);
144 rbsp_bit(rbsp, &ptl->general_max_14bit_constraint_flag);
145 rbsp_bits(rbsp, 32, &ptl->general_reserved_zero_33bits);
146 rbsp_bits(rbsp, 33 - 32, &ptl->general_reserved_zero_33bits);
148 rbsp_bits(rbsp, 32, &ptl->general_reserved_zero_34bits);
149 rbsp_bits(rbsp, 34 - 2, &ptl->general_reserved_zero_34bits);
153 rbsp_bits(rbsp, 7, &ptl->general_reserved_zero_7bits);
154 rbsp_bit(rbsp, &ptl->general_one_picture_only_constraint_flag);
155 rbsp_bits(rbsp, 32, &ptl->general_reserved_zero_35bits);
156 rbsp_bits(rbsp, 35 - 32, &ptl->general_reserved_zero_35bits);
158 rbsp_bits(rbsp, 32, &ptl->general_reserved_zero_43bits);
159 rbsp_bits(rbsp, 43 - 32, &ptl->general_reserved_zero_43bits);
169 rbsp_bit(rbsp, &ptl->general_inbld_flag);
171 rbsp_bit(rbsp, &ptl->general_reserved_zero_bit);
172 rbsp_bits(rbsp, 8, &ptl->general_level_idc);
174 rbsp_unsupported(rbsp);
177 static void nal_hevc_rbsp_vps(struct rbsp *rbsp, struct nal_hevc_vps *vps)
182 rbsp_bits(rbsp, 4, &vps->video_parameter_set_id);
183 rbsp_bit(rbsp, &vps->base_layer_internal_flag);
184 rbsp_bit(rbsp, &vps->base_layer_available_flag);
185 rbsp_bits(rbsp, 6, &vps->max_layers_minus1);
186 rbsp_bits(rbsp, 3, &vps->max_sub_layers_minus1);
187 rbsp_bits(rbsp, 1, &vps->temporal_id_nesting_flag);
188 rbsp_bits(rbsp, 16, &reserved_0xffff_16bits);
189 nal_hevc_rbsp_profile_tier_level(rbsp, &vps->profile_tier_level);
190 rbsp_bit(rbsp, &vps->sub_layer_ordering_info_present_flag);
193 rbsp_uev(rbsp, &vps->max_dec_pic_buffering_minus1[i]);
194 rbsp_uev(rbsp, &vps->max_num_reorder_pics[i]);
195 rbsp_uev(rbsp, &vps->max_latency_increase_plus1[i]);
197 rbsp_bits(rbsp, 6, &vps->max_layer_id);
198 rbsp_uev(rbsp, &vps->num_layer_sets_minus1);
201 rbsp_bit(rbsp, &vps->layer_id_included_flag[i][j]);
202 rbsp_bit(rbsp, &vps->timing_info_present_flag);
204 rbsp_unsupported(rbsp);
205 rbsp_bit(rbsp, &vps->extension_flag);
207 rbsp_unsupported(rbsp);
210 static void nal_hevc_rbsp_sub_layer_hrd_parameters(struct rbsp *rbsp,
217 rbsp_uev(rbsp, &hrd->bit_rate_value_minus1[i]);
218 rbsp_uev(rbsp, &hrd->cpb_size_value_minus1[i]);
219 rbsp_bit(rbsp, &hrd->cbr_flag[i]);
223 static void nal_hevc_rbsp_hrd_parameters(struct rbsp *rbsp,
229 rbsp_bit(rbsp, &hrd->nal_hrd_parameters_present_flag);
230 rbsp_bit(rbsp, &hrd->vcl_hrd_parameters_present_flag);
232 rbsp_bit(rbsp, &hrd->sub_pic_hrd_params_present_flag);
234 rbsp_bits(rbsp, 8, &hrd->tick_divisor_minus2);
235 rbsp_bits(rbsp, 5, &hrd->du_cpb_removal_delay_increment_length_minus1);
236 rbsp_bit(rbsp, &hrd->sub_pic_cpb_params_in_pic_timing_sei_flag);
237 rbsp_bits(rbsp, 5, &hrd->dpb_output_delay_du_length_minus1);
239 rbsp_bits(rbsp, 4, &hrd->bit_rate_scale);
240 rbsp_bits(rbsp, 4, &hrd->cpb_size_scale);
242 rbsp_bits(rbsp, 4, &hrd->cpb_size_du_scale);
243 rbsp_bits(rbsp, 5, &hrd->initial_cpb_removal_delay_length_minus1);
244 rbsp_bits(rbsp, 5, &hrd->au_cpb_removal_delay_length_minus1);
245 rbsp_bits(rbsp, 5, &hrd->dpb_output_delay_length_minus1);
248 rbsp_bit(rbsp, &hrd->fixed_pic_rate_general_flag[i]);
250 rbsp_bit(rbsp, &hrd->fixed_pic_rate_within_cvs_flag[i]);
252 rbsp_uev(rbsp, &hrd->elemental_duration_in_tc_minus1[i]);
254 rbsp_bit(rbsp, &hrd->low_delay_hrd_flag[i]);
256 rbsp_uev(rbsp, &hrd->cpb_cnt_minus1[i]);
258 nal_hevc_rbsp_sub_layer_hrd_parameters(rbsp, &hrd->vcl_hrd[i]);
260 nal_hevc_rbsp_sub_layer_hrd_parameters(rbsp, &hrd->vcl_hrd[i]);
264 static void nal_hevc_rbsp_vui_parameters(struct rbsp *rbsp,
268 rbsp->error = -EINVAL;
272 rbsp_bit(rbsp, &vui->aspect_ratio_info_present_flag);
274 rbsp_bits(rbsp, 8, &vui->aspect_ratio_idc);
276 rbsp_bits(rbsp, 16, &vui->sar_width);
277 rbsp_bits(rbsp, 16, &vui->sar_height);
281 rbsp_bit(rbsp, &vui->overscan_info_present_flag);
283 rbsp_bit(rbsp, &vui->overscan_appropriate_flag);
285 rbsp_bit(rbsp, &vui->video_signal_type_present_flag);
287 rbsp_bits(rbsp, 3, &vui->video_format);
288 rbsp_bit(rbsp, &vui->video_full_range_flag);
290 rbsp_bit(rbsp, &vui->colour_description_present_flag);
292 rbsp_bits(rbsp, 8, &vui->colour_primaries);
293 rbsp_bits(rbsp, 8, &vui->transfer_characteristics);
294 rbsp_bits(rbsp, 8, &vui->matrix_coeffs);
298 rbsp_bit(rbsp, &vui->chroma_loc_info_present_flag);
300 rbsp_uev(rbsp, &vui->chroma_sample_loc_type_top_field);
301 rbsp_uev(rbsp, &vui->chroma_sample_loc_type_bottom_field);
304 rbsp_bit(rbsp, &vui->neutral_chroma_indication_flag);
305 rbsp_bit(rbsp, &vui->field_seq_flag);
306 rbsp_bit(rbsp, &vui->frame_field_info_present_flag);
307 rbsp_bit(rbsp, &vui->default_display_window_flag);
309 rbsp_uev(rbsp, &vui->def_disp_win_left_offset);
310 rbsp_uev(rbsp, &vui->def_disp_win_right_offset);
311 rbsp_uev(rbsp, &vui->def_disp_win_top_offset);
312 rbsp_uev(rbsp, &vui->def_disp_win_bottom_offset);
315 rbsp_bit(rbsp, &vui->vui_timing_info_present_flag);
317 rbsp_bits(rbsp, 32, &vui->vui_num_units_in_tick);
318 rbsp_bits(rbsp, 32, &vui->vui_time_scale);
319 rbsp_bit(rbsp, &vui->vui_poc_proportional_to_timing_flag);
321 rbsp_uev(rbsp, &vui->vui_num_ticks_poc_diff_one_minus1);
322 rbsp_bit(rbsp, &vui->vui_hrd_parameters_present_flag);
324 nal_hevc_rbsp_hrd_parameters(rbsp, &vui->nal_hrd_parameters);
327 rbsp_bit(rbsp, &vui->bitstream_restriction_flag);
329 rbsp_bit(rbsp, &vui->tiles_fixed_structure_flag);
330 rbsp_bit(rbsp, &vui->motion_vectors_over_pic_boundaries_flag);
331 rbsp_bit(rbsp, &vui->restricted_ref_pic_lists_flag);
332 rbsp_uev(rbsp, &vui->min_spatial_segmentation_idc);
333 rbsp_uev(rbsp, &vui->max_bytes_per_pic_denom);
334 rbsp_uev(rbsp, &vui->max_bits_per_min_cu_denom);
335 rbsp_uev(rbsp, &vui->log2_max_mv_length_horizontal);
336 rbsp_uev(rbsp, &vui->log2_max_mv_length_vertical);
340 static void nal_hevc_rbsp_sps(struct rbsp *rbsp, struct nal_hevc_sps *sps)
344 rbsp_bits(rbsp, 4, &sps->video_parameter_set_id);
345 rbsp_bits(rbsp, 3, &sps->max_sub_layers_minus1);
346 rbsp_bit(rbsp, &sps->temporal_id_nesting_flag);
347 nal_hevc_rbsp_profile_tier_level(rbsp, &sps->profile_tier_level);
348 rbsp_uev(rbsp, &sps->seq_parameter_set_id);
350 rbsp_uev(rbsp, &sps->chroma_format_idc);
352 rbsp_bit(rbsp, &sps->separate_colour_plane_flag);
353 rbsp_uev(rbsp, &sps->pic_width_in_luma_samples);
354 rbsp_uev(rbsp, &sps->pic_height_in_luma_samples);
355 rbsp_bit(rbsp, &sps->conformance_window_flag);
357 rbsp_uev(rbsp, &sps->conf_win_left_offset);
358 rbsp_uev(rbsp, &sps->conf_win_right_offset);
359 rbsp_uev(rbsp, &sps->conf_win_top_offset);
360 rbsp_uev(rbsp, &sps->conf_win_bottom_offset);
362 rbsp_uev(rbsp, &sps->bit_depth_luma_minus8);
363 rbsp_uev(rbsp, &sps->bit_depth_chroma_minus8);
365 rbsp_uev(rbsp, &sps->log2_max_pic_order_cnt_lsb_minus4);
367 rbsp_bit(rbsp, &sps->sub_layer_ordering_info_present_flag);
370 rbsp_uev(rbsp, &sps->max_dec_pic_buffering_minus1[i]);
371 rbsp_uev(rbsp, &sps->max_num_reorder_pics[i]);
372 rbsp_uev(rbsp, &sps->max_latency_increase_plus1[i]);
374 rbsp_uev(rbsp, &sps->log2_min_luma_coding_block_size_minus3);
375 rbsp_uev(rbsp, &sps->log2_diff_max_min_luma_coding_block_size);
376 rbsp_uev(rbsp, &sps->log2_min_luma_transform_block_size_minus2);
377 rbsp_uev(rbsp, &sps->log2_diff_max_min_luma_transform_block_size);
378 rbsp_uev(rbsp, &sps->max_transform_hierarchy_depth_inter);
379 rbsp_uev(rbsp, &sps->max_transform_hierarchy_depth_intra);
381 rbsp_bit(rbsp, &sps->scaling_list_enabled_flag);
383 rbsp_unsupported(rbsp);
385 rbsp_bit(rbsp, &sps->amp_enabled_flag);
386 rbsp_bit(rbsp, &sps->sample_adaptive_offset_enabled_flag);
387 rbsp_bit(rbsp, &sps->pcm_enabled_flag);
389 rbsp_bits(rbsp, 4, &sps->pcm_sample_bit_depth_luma_minus1);
390 rbsp_bits(rbsp, 4, &sps->pcm_sample_bit_depth_chroma_minus1);
391 rbsp_uev(rbsp, &sps->log2_min_pcm_luma_coding_block_size_minus3);
392 rbsp_uev(rbsp, &sps->log2_diff_max_min_pcm_luma_coding_block_size);
393 rbsp_bit(rbsp, &sps->pcm_loop_filter_disabled_flag);
396 rbsp_uev(rbsp, &sps->num_short_term_ref_pic_sets);
398 rbsp_unsupported(rbsp);
400 rbsp_bit(rbsp, &sps->long_term_ref_pics_present_flag);
402 rbsp_unsupported(rbsp);
404 rbsp_bit(rbsp, &sps->sps_temporal_mvp_enabled_flag);
405 rbsp_bit(rbsp, &sps->strong_intra_smoothing_enabled_flag);
406 rbsp_bit(rbsp, &sps->vui_parameters_present_flag);
408 nal_hevc_rbsp_vui_parameters(rbsp, &sps->vui);
410 rbsp_bit(rbsp, &sps->extension_present_flag);
412 rbsp_bit(rbsp, &sps->sps_range_extension_flag);
413 rbsp_bit(rbsp, &sps->sps_multilayer_extension_flag);
414 rbsp_bit(rbsp, &sps->sps_3d_extension_flag);
415 rbsp_bit(rbsp, &sps->sps_scc_extension_flag);
416 rbsp_bits(rbsp, 5, &sps->sps_extension_4bits);
419 rbsp_unsupported(rbsp);
421 rbsp_unsupported(rbsp);
423 rbsp_unsupported(rbsp);
425 rbsp_unsupported(rbsp);
427 rbsp_unsupported(rbsp);
430 static void nal_hevc_rbsp_pps(struct rbsp *rbsp, struct nal_hevc_pps *pps)
434 rbsp_uev(rbsp, &pps->pps_pic_parameter_set_id);
435 rbsp_uev(rbsp, &pps->pps_seq_parameter_set_id);
436 rbsp_bit(rbsp, &pps->dependent_slice_segments_enabled_flag);
437 rbsp_bit(rbsp, &pps->output_flag_present_flag);
438 rbsp_bits(rbsp, 3, &pps->num_extra_slice_header_bits);
439 rbsp_bit(rbsp, &pps->sign_data_hiding_enabled_flag);
440 rbsp_bit(rbsp, &pps->cabac_init_present_flag);
441 rbsp_uev(rbsp, &pps->num_ref_idx_l0_default_active_minus1);
442 rbsp_uev(rbsp, &pps->num_ref_idx_l1_default_active_minus1);
443 rbsp_sev(rbsp, &pps->init_qp_minus26);
444 rbsp_bit(rbsp, &pps->constrained_intra_pred_flag);
445 rbsp_bit(rbsp, &pps->transform_skip_enabled_flag);
446 rbsp_bit(rbsp, &pps->cu_qp_delta_enabled_flag);
448 rbsp_uev(rbsp, &pps->diff_cu_qp_delta_depth);
449 rbsp_sev(rbsp, &pps->pps_cb_qp_offset);
450 rbsp_sev(rbsp, &pps->pps_cr_qp_offset);
451 rbsp_bit(rbsp, &pps->pps_slice_chroma_qp_offsets_present_flag);
452 rbsp_bit(rbsp, &pps->weighted_pred_flag);
453 rbsp_bit(rbsp, &pps->weighted_bipred_flag);
454 rbsp_bit(rbsp, &pps->transquant_bypass_enabled_flag);
455 rbsp_bit(rbsp, &pps->tiles_enabled_flag);
456 rbsp_bit(rbsp, &pps->entropy_coding_sync_enabled_flag);
458 rbsp_uev(rbsp, &pps->num_tile_columns_minus1);
459 rbsp_uev(rbsp, &pps->num_tile_rows_minus1);
460 rbsp_bit(rbsp, &pps->uniform_spacing_flag);
463 rbsp_uev(rbsp, &pps->column_width_minus1[i]);
465 rbsp_uev(rbsp, &pps->row_height_minus1[i]);
467 rbsp_bit(rbsp, &pps->loop_filter_across_tiles_enabled_flag);
469 rbsp_bit(rbsp, &pps->pps_loop_filter_across_slices_enabled_flag);
470 rbsp_bit(rbsp, &pps->deblocking_filter_control_present_flag);
472 rbsp_bit(rbsp, &pps->deblocking_filter_override_enabled_flag);
473 rbsp_bit(rbsp, &pps->pps_deblocking_filter_disabled_flag);
475 rbsp_sev(rbsp, &pps->pps_beta_offset_div2);
476 rbsp_sev(rbsp, &pps->pps_tc_offset_div2);
479 rbsp_bit(rbsp, &pps->pps_scaling_list_data_present_flag);
481 rbsp_unsupported(rbsp);
482 rbsp_bit(rbsp, &pps->lists_modification_present_flag);
483 rbsp_uev(rbsp, &pps->log2_parallel_merge_level_minus2);
484 rbsp_bit(rbsp, &pps->slice_segment_header_extension_present_flag);
485 rbsp_bit(rbsp, &pps->pps_extension_present_flag);
487 rbsp_bit(rbsp, &pps->pps_range_extension_flag);
488 rbsp_bit(rbsp, &pps->pps_multilayer_extension_flag);
489 rbsp_bit(rbsp, &pps->pps_3d_extension_flag);
490 rbsp_bit(rbsp, &pps->pps_scc_extension_flag);
491 rbsp_bits(rbsp, 4, &pps->pps_extension_4bits);
494 rbsp_unsupported(rbsp);
496 rbsp_unsupported(rbsp);
498 rbsp_unsupported(rbsp);
500 rbsp_unsupported(rbsp);
502 rbsp_unsupported(rbsp);
522 struct rbsp rbsp;
531 rbsp_init(&rbsp, dest, n, &write);
533 nal_hevc_write_start_code_prefix(&rbsp);
536 rbsp_bit(&rbsp, &forbidden_zero_bit);
537 rbsp_bits(&rbsp, 6, &nal_unit_type);
538 rbsp_bits(&rbsp, 6, &nuh_layer_id);
539 rbsp_bits(&rbsp, 3, &nuh_temporal_id_plus1);
541 nal_hevc_rbsp_vps(&rbsp, vps);
543 rbsp_trailing_bits(&rbsp);
545 if (rbsp.error)
546 return rbsp.error;
548 return DIV_ROUND_UP(rbsp.pos, 8);
566 struct rbsp rbsp;
575 rbsp_init(&rbsp, src, n, &read);
577 nal_hevc_read_start_code_prefix(&rbsp);
579 rbsp_bit(&rbsp, &forbidden_zero_bit);
580 rbsp_bits(&rbsp, 6, &nal_unit_type);
581 rbsp_bits(&rbsp, 6, &nuh_layer_id);
582 rbsp_bits(&rbsp, 3, &nuh_temporal_id_plus1);
584 if (rbsp.error ||
589 nal_hevc_rbsp_vps(&rbsp, vps);
591 rbsp_trailing_bits(&rbsp);
593 if (rbsp.error)
594 return rbsp.error;
596 return DIV_ROUND_UP(rbsp.pos, 8);
617 struct rbsp rbsp;
626 rbsp_init(&rbsp, dest, n, &write);
628 nal_hevc_write_start_code_prefix(&rbsp);
631 rbsp_bit(&rbsp, &forbidden_zero_bit);
632 rbsp_bits(&rbsp, 6, &nal_unit_type);
633 rbsp_bits(&rbsp, 6, &nuh_layer_id);
634 rbsp_bits(&rbsp, 3, &nuh_temporal_id_plus1);
636 nal_hevc_rbsp_sps(&rbsp, sps);
638 rbsp_trailing_bits(&rbsp);
640 if (rbsp.error)
641 return rbsp.error;
643 return DIV_ROUND_UP(rbsp.pos, 8);
661 struct rbsp rbsp;
670 rbsp_init(&rbsp, src, n, &read);
672 nal_hevc_read_start_code_prefix(&rbsp);
674 rbsp_bit(&rbsp, &forbidden_zero_bit);
675 rbsp_bits(&rbsp, 6, &nal_unit_type);
676 rbsp_bits(&rbsp, 6, &nuh_layer_id);
677 rbsp_bits(&rbsp, 3, &nuh_temporal_id_plus1);
679 if (rbsp.error ||
684 nal_hevc_rbsp_sps(&rbsp, sps);
686 rbsp_trailing_bits(&rbsp);
688 if (rbsp.error)
689 return rbsp.error;
691 return DIV_ROUND_UP(rbsp.pos, 8);
712 struct rbsp rbsp;
721 rbsp_init(&rbsp, dest, n, &write);
723 nal_hevc_write_start_code_prefix(&rbsp);
726 rbsp_bit(&rbsp, &forbidden_zero_bit);
727 rbsp_bits(&rbsp, 6, &nal_unit_type);
728 rbsp_bits(&rbsp, 6, &nuh_layer_id);
729 rbsp_bits(&rbsp, 3, &nuh_temporal_id_plus1);
731 nal_hevc_rbsp_pps(&rbsp, pps);
733 rbsp_trailing_bits(&rbsp);
735 if (rbsp.error)
736 return rbsp.error;
738 return DIV_ROUND_UP(rbsp.pos, 8);
756 struct rbsp rbsp;
765 rbsp_init(&rbsp, src, n, &read);
767 nal_hevc_read_start_code_prefix(&rbsp);
770 rbsp_bit(&rbsp, &forbidden_zero_bit);
771 rbsp_bits(&rbsp, 6, &nal_unit_type);
772 rbsp_bits(&rbsp, 6, &nuh_layer_id);
773 rbsp_bits(&rbsp, 3, &nuh_temporal_id_plus1);
775 nal_hevc_rbsp_pps(&rbsp, pps);
777 rbsp_trailing_bits(&rbsp);
779 if (rbsp.error)
780 return rbsp.error;
782 return DIV_ROUND_UP(rbsp.pos, 8);
805 struct rbsp rbsp;
814 rbsp_init(&rbsp, dest, n, &write);
816 nal_hevc_write_start_code_prefix(&rbsp);
818 rbsp_bit(&rbsp, &forbidden_zero_bit);
819 rbsp_bits(&rbsp, 6, &nal_unit_type);
820 rbsp_bits(&rbsp, 6, &nuh_layer_id);
821 rbsp_bits(&rbsp, 3, &nuh_temporal_id_plus1);
823 nal_hevc_write_filler_data(&rbsp);
824 rbsp_trailing_bits(&rbsp);
826 if (rbsp.error)
827 return rbsp.error;
829 return DIV_ROUND_UP(rbsp.pos, 8);
852 struct rbsp rbsp;
861 rbsp_init(&rbsp, src, n, &read);
863 nal_hevc_read_start_code_prefix(&rbsp);
865 rbsp_bit(&rbsp, &forbidden_zero_bit);
866 rbsp_bits(&rbsp, 6, &nal_unit_type);
867 rbsp_bits(&rbsp, 6, &nuh_layer_id);
868 rbsp_bits(&rbsp, 3, &nuh_temporal_id_plus1);
870 if (rbsp.error)
871 return rbsp.error;
876 nal_hevc_read_filler_data(&rbsp);
877 rbsp_trailing_bits(&rbsp);
879 if (rbsp.error)
880 return rbsp.error;
882 return DIV_ROUND_UP(rbsp.pos, 8);