| /* |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| static int FUNC(rbsp_trailing_bits)(CodedBitstreamContext *ctx, RWContext *rw) |
| { |
| int err; |
| |
| fixed(1, rbsp_stop_one_bit, 1); |
| while (byte_alignment(rw) != 0) |
| fixed(1, rbsp_alignment_zero_bit, 0); |
| |
| return 0; |
| } |
| |
| static int FUNC(nal_unit_header)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawNALUnitHeader *current, |
| int expected_nal_unit_type) |
| { |
| int err; |
| |
| fixed(1, forbidden_zero_bit, 0); |
| |
| if (expected_nal_unit_type >= 0) |
| u(6, nal_unit_type, expected_nal_unit_type, |
| expected_nal_unit_type); |
| else |
| ub(6, nal_unit_type); |
| |
| u(6, nuh_layer_id, 0, 62); |
| u(3, nuh_temporal_id_plus1, 1, 7); |
| |
| return 0; |
| } |
| |
| static int FUNC(byte_alignment)(CodedBitstreamContext *ctx, RWContext *rw) |
| { |
| int err; |
| |
| fixed(1, alignment_bit_equal_to_one, 1); |
| while (byte_alignment(rw) != 0) |
| fixed(1, alignment_bit_equal_to_zero, 0); |
| |
| return 0; |
| } |
| |
| static int FUNC(extension_data)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawExtensionData *current) |
| { |
| int err; |
| size_t k; |
| #ifdef READ |
| GetBitContext start; |
| uint8_t bit; |
| start = *rw; |
| for (k = 0; cbs_h2645_read_more_rbsp_data(rw); k++) |
| skip_bits(rw, 1); |
| current->bit_length = k; |
| if (k > 0) { |
| *rw = start; |
| allocate(current->data, (current->bit_length + 7) / 8); |
| for (k = 0; k < current->bit_length; k++) { |
| xu(1, extension_data, bit, 0, 1, 0); |
| current->data[k / 8] |= bit << (7 - k % 8); |
| } |
| } |
| #else |
| for (k = 0; k < current->bit_length; k++) |
| xu(1, extension_data, current->data[k / 8] >> (7 - k % 8) & 1, 0, 1, 0); |
| #endif |
| return 0; |
| } |
| |
| static int FUNC(profile_tier_level)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawProfileTierLevel *current, |
| int profile_present_flag, |
| int max_num_sub_layers_minus1) |
| { |
| int err, i, j; |
| |
| if (profile_present_flag) { |
| u(2, general_profile_space, 0, 0); |
| flag(general_tier_flag); |
| ub(5, general_profile_idc); |
| |
| for (j = 0; j < 32; j++) |
| flags(general_profile_compatibility_flag[j], 1, j); |
| |
| flag(general_progressive_source_flag); |
| flag(general_interlaced_source_flag); |
| flag(general_non_packed_constraint_flag); |
| flag(general_frame_only_constraint_flag); |
| |
| #define profile_compatible(x) (current->general_profile_idc == (x) || \ |
| current->general_profile_compatibility_flag[x]) |
| if (profile_compatible(4) || profile_compatible(5) || |
| profile_compatible(6) || profile_compatible(7) || |
| profile_compatible(8) || profile_compatible(9) || |
| profile_compatible(10)) { |
| flag(general_max_12bit_constraint_flag); |
| flag(general_max_10bit_constraint_flag); |
| flag(general_max_8bit_constraint_flag); |
| flag(general_max_422chroma_constraint_flag); |
| flag(general_max_420chroma_constraint_flag); |
| flag(general_max_monochrome_constraint_flag); |
| flag(general_intra_constraint_flag); |
| flag(general_one_picture_only_constraint_flag); |
| flag(general_lower_bit_rate_constraint_flag); |
| |
| if (profile_compatible(5) || profile_compatible(9) || |
| profile_compatible(10)) { |
| flag(general_max_14bit_constraint_flag); |
| fixed(24, general_reserved_zero_33bits, 0); |
| fixed( 9, general_reserved_zero_33bits, 0); |
| } else { |
| fixed(24, general_reserved_zero_34bits, 0); |
| fixed(10, general_reserved_zero_34bits, 0); |
| } |
| } else if (profile_compatible(2)) { |
| fixed(7, general_reserved_zero_7bits, 0); |
| flag(general_one_picture_only_constraint_flag); |
| fixed(24, general_reserved_zero_35bits, 0); |
| fixed(11, general_reserved_zero_35bits, 0); |
| } else { |
| fixed(24, general_reserved_zero_43bits, 0); |
| fixed(19, general_reserved_zero_43bits, 0); |
| } |
| |
| if (profile_compatible(1) || profile_compatible(2) || |
| profile_compatible(3) || profile_compatible(4) || |
| profile_compatible(5) || profile_compatible(9)) { |
| flag(general_inbld_flag); |
| } else { |
| fixed(1, general_reserved_zero_bit, 0); |
| } |
| #undef profile_compatible |
| } |
| |
| ub(8, general_level_idc); |
| |
| for (i = 0; i < max_num_sub_layers_minus1; i++) { |
| flags(sub_layer_profile_present_flag[i], 1, i); |
| flags(sub_layer_level_present_flag[i], 1, i); |
| } |
| |
| if (max_num_sub_layers_minus1 > 0) { |
| for (i = max_num_sub_layers_minus1; i < 8; i++) |
| fixed(2, reserved_zero_2bits, 0); |
| } |
| |
| for (i = 0; i < max_num_sub_layers_minus1; i++) { |
| if (current->sub_layer_profile_present_flag[i]) { |
| us(2, sub_layer_profile_space[i], 0, 0, 1, i); |
| flags(sub_layer_tier_flag[i], 1, i); |
| ubs(5, sub_layer_profile_idc[i], 1, i); |
| |
| for (j = 0; j < 32; j++) |
| flags(sub_layer_profile_compatibility_flag[i][j], 2, i, j); |
| |
| flags(sub_layer_progressive_source_flag[i], 1, i); |
| flags(sub_layer_interlaced_source_flag[i], 1, i); |
| flags(sub_layer_non_packed_constraint_flag[i], 1, i); |
| flags(sub_layer_frame_only_constraint_flag[i], 1, i); |
| |
| #define profile_compatible(x) (current->sub_layer_profile_idc[i] == (x) || \ |
| current->sub_layer_profile_compatibility_flag[i][x]) |
| if (profile_compatible(4) || profile_compatible(5) || |
| profile_compatible(6) || profile_compatible(7) || |
| profile_compatible(8) || profile_compatible(9) || |
| profile_compatible(10)) { |
| flags(sub_layer_max_12bit_constraint_flag[i], 1, i); |
| flags(sub_layer_max_10bit_constraint_flag[i], 1, i); |
| flags(sub_layer_max_8bit_constraint_flag[i], 1, i); |
| flags(sub_layer_max_422chroma_constraint_flag[i], 1, i); |
| flags(sub_layer_max_420chroma_constraint_flag[i], 1, i); |
| flags(sub_layer_max_monochrome_constraint_flag[i], 1, i); |
| flags(sub_layer_intra_constraint_flag[i], 1, i); |
| flags(sub_layer_one_picture_only_constraint_flag[i], 1, i); |
| flags(sub_layer_lower_bit_rate_constraint_flag[i], 1, i); |
| |
| if (profile_compatible(5)) { |
| flags(sub_layer_max_14bit_constraint_flag[i], 1, i); |
| fixed(24, sub_layer_reserved_zero_33bits, 0); |
| fixed( 9, sub_layer_reserved_zero_33bits, 0); |
| } else { |
| fixed(24, sub_layer_reserved_zero_34bits, 0); |
| fixed(10, sub_layer_reserved_zero_34bits, 0); |
| } |
| } else if (profile_compatible(2)) { |
| fixed(7, sub_layer_reserved_zero_7bits, 0); |
| flags(sub_layer_one_picture_only_constraint_flag[i], 1, i); |
| fixed(24, sub_layer_reserved_zero_43bits, 0); |
| fixed(11, sub_layer_reserved_zero_43bits, 0); |
| } else { |
| fixed(24, sub_layer_reserved_zero_43bits, 0); |
| fixed(19, sub_layer_reserved_zero_43bits, 0); |
| } |
| |
| if (profile_compatible(1) || profile_compatible(2) || |
| profile_compatible(3) || profile_compatible(4) || |
| profile_compatible(5) || profile_compatible(9)) { |
| flags(sub_layer_inbld_flag[i], 1, i); |
| } else { |
| fixed(1, sub_layer_reserved_zero_bit, 0); |
| } |
| #undef profile_compatible |
| } |
| if (current->sub_layer_level_present_flag[i]) |
| ubs(8, sub_layer_level_idc[i], 1, i); |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(sub_layer_hrd_parameters)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawHRDParameters *hrd, |
| int nal, int sub_layer_id) |
| { |
| H265RawSubLayerHRDParameters *current; |
| int err, i; |
| |
| if (nal) |
| current = &hrd->nal_sub_layer_hrd_parameters[sub_layer_id]; |
| else |
| current = &hrd->vcl_sub_layer_hrd_parameters[sub_layer_id]; |
| |
| for (i = 0; i <= hrd->cpb_cnt_minus1[sub_layer_id]; i++) { |
| ues(bit_rate_value_minus1[i], 0, UINT32_MAX - 1, 1, i); |
| ues(cpb_size_value_minus1[i], 0, UINT32_MAX - 1, 1, i); |
| if (hrd->sub_pic_hrd_params_present_flag) { |
| ues(cpb_size_du_value_minus1[i], 0, UINT32_MAX - 1, 1, i); |
| ues(bit_rate_du_value_minus1[i], 0, UINT32_MAX - 1, 1, i); |
| } |
| flags(cbr_flag[i], 1, i); |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(hrd_parameters)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawHRDParameters *current, int common_inf_present_flag, |
| int max_num_sub_layers_minus1) |
| { |
| int err, i; |
| |
| if (common_inf_present_flag) { |
| flag(nal_hrd_parameters_present_flag); |
| flag(vcl_hrd_parameters_present_flag); |
| |
| if (current->nal_hrd_parameters_present_flag || |
| current->vcl_hrd_parameters_present_flag) { |
| flag(sub_pic_hrd_params_present_flag); |
| if (current->sub_pic_hrd_params_present_flag) { |
| ub(8, tick_divisor_minus2); |
| ub(5, du_cpb_removal_delay_increment_length_minus1); |
| flag(sub_pic_cpb_params_in_pic_timing_sei_flag); |
| ub(5, dpb_output_delay_du_length_minus1); |
| } |
| |
| ub(4, bit_rate_scale); |
| ub(4, cpb_size_scale); |
| if (current->sub_pic_hrd_params_present_flag) |
| ub(4, cpb_size_du_scale); |
| |
| ub(5, initial_cpb_removal_delay_length_minus1); |
| ub(5, au_cpb_removal_delay_length_minus1); |
| ub(5, dpb_output_delay_length_minus1); |
| } else { |
| infer(sub_pic_hrd_params_present_flag, 0); |
| |
| infer(initial_cpb_removal_delay_length_minus1, 23); |
| infer(au_cpb_removal_delay_length_minus1, 23); |
| infer(dpb_output_delay_length_minus1, 23); |
| } |
| } |
| |
| for (i = 0; i <= max_num_sub_layers_minus1; i++) { |
| flags(fixed_pic_rate_general_flag[i], 1, i); |
| |
| if (!current->fixed_pic_rate_general_flag[i]) |
| flags(fixed_pic_rate_within_cvs_flag[i], 1, i); |
| else |
| infer(fixed_pic_rate_within_cvs_flag[i], 1); |
| |
| if (current->fixed_pic_rate_within_cvs_flag[i]) { |
| ues(elemental_duration_in_tc_minus1[i], 0, 2047, 1, i); |
| infer(low_delay_hrd_flag[i], 0); |
| } else |
| flags(low_delay_hrd_flag[i], 1, i); |
| |
| if (!current->low_delay_hrd_flag[i]) |
| ues(cpb_cnt_minus1[i], 0, 31, 1, i); |
| else |
| infer(cpb_cnt_minus1[i], 0); |
| |
| if (current->nal_hrd_parameters_present_flag) |
| CHECK(FUNC(sub_layer_hrd_parameters)(ctx, rw, current, 0, i)); |
| if (current->vcl_hrd_parameters_present_flag) |
| CHECK(FUNC(sub_layer_hrd_parameters)(ctx, rw, current, 1, i)); |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(vui_parameters)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawVUI *current, const H265RawSPS *sps) |
| { |
| int err; |
| |
| flag(aspect_ratio_info_present_flag); |
| if (current->aspect_ratio_info_present_flag) { |
| ub(8, aspect_ratio_idc); |
| if (current->aspect_ratio_idc == 255) { |
| ub(16, sar_width); |
| ub(16, sar_height); |
| } |
| } else { |
| infer(aspect_ratio_idc, 0); |
| } |
| |
| flag(overscan_info_present_flag); |
| if (current->overscan_info_present_flag) |
| flag(overscan_appropriate_flag); |
| |
| flag(video_signal_type_present_flag); |
| if (current->video_signal_type_present_flag) { |
| ub(3, video_format); |
| flag(video_full_range_flag); |
| flag(colour_description_present_flag); |
| if (current->colour_description_present_flag) { |
| ub(8, colour_primaries); |
| ub(8, transfer_characteristics); |
| ub(8, matrix_coefficients); |
| } else { |
| infer(colour_primaries, 2); |
| infer(transfer_characteristics, 2); |
| infer(matrix_coefficients, 2); |
| } |
| } else { |
| infer(video_format, 5); |
| infer(video_full_range_flag, 0); |
| infer(colour_primaries, 2); |
| infer(transfer_characteristics, 2); |
| infer(matrix_coefficients, 2); |
| } |
| |
| flag(chroma_loc_info_present_flag); |
| if (current->chroma_loc_info_present_flag) { |
| ue(chroma_sample_loc_type_top_field, 0, 5); |
| ue(chroma_sample_loc_type_bottom_field, 0, 5); |
| } else { |
| infer(chroma_sample_loc_type_top_field, 0); |
| infer(chroma_sample_loc_type_bottom_field, 0); |
| } |
| |
| flag(neutral_chroma_indication_flag); |
| flag(field_seq_flag); |
| flag(frame_field_info_present_flag); |
| |
| flag(default_display_window_flag); |
| if (current->default_display_window_flag) { |
| ue(def_disp_win_left_offset, 0, 16384); |
| ue(def_disp_win_right_offset, 0, 16384); |
| ue(def_disp_win_top_offset, 0, 16384); |
| ue(def_disp_win_bottom_offset, 0, 16384); |
| } |
| |
| flag(vui_timing_info_present_flag); |
| if (current->vui_timing_info_present_flag) { |
| u(32, vui_num_units_in_tick, 1, UINT32_MAX); |
| u(32, vui_time_scale, 1, UINT32_MAX); |
| flag(vui_poc_proportional_to_timing_flag); |
| if (current->vui_poc_proportional_to_timing_flag) |
| ue(vui_num_ticks_poc_diff_one_minus1, 0, UINT32_MAX - 1); |
| |
| flag(vui_hrd_parameters_present_flag); |
| if (current->vui_hrd_parameters_present_flag) { |
| CHECK(FUNC(hrd_parameters)(ctx, rw, ¤t->hrd_parameters, |
| 1, sps->sps_max_sub_layers_minus1)); |
| } |
| } |
| |
| flag(bitstream_restriction_flag); |
| if (current->bitstream_restriction_flag) { |
| flag(tiles_fixed_structure_flag); |
| flag(motion_vectors_over_pic_boundaries_flag); |
| flag(restricted_ref_pic_lists_flag); |
| ue(min_spatial_segmentation_idc, 0, 4095); |
| ue(max_bytes_per_pic_denom, 0, 16); |
| ue(max_bits_per_min_cu_denom, 0, 16); |
| ue(log2_max_mv_length_horizontal, 0, 16); |
| ue(log2_max_mv_length_vertical, 0, 16); |
| } else { |
| infer(tiles_fixed_structure_flag, 0); |
| infer(motion_vectors_over_pic_boundaries_flag, 1); |
| infer(min_spatial_segmentation_idc, 0); |
| infer(max_bytes_per_pic_denom, 2); |
| infer(max_bits_per_min_cu_denom, 1); |
| infer(log2_max_mv_length_horizontal, 15); |
| infer(log2_max_mv_length_vertical, 15); |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(vps)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawVPS *current) |
| { |
| int err, i, j; |
| |
| HEADER("Video Parameter Set"); |
| |
| CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, HEVC_NAL_VPS)); |
| |
| ub(4, vps_video_parameter_set_id); |
| |
| flag(vps_base_layer_internal_flag); |
| flag(vps_base_layer_available_flag); |
| u(6, vps_max_layers_minus1, 0, HEVC_MAX_LAYERS - 1); |
| u(3, vps_max_sub_layers_minus1, 0, HEVC_MAX_SUB_LAYERS - 1); |
| flag(vps_temporal_id_nesting_flag); |
| |
| if (current->vps_max_sub_layers_minus1 == 0 && |
| current->vps_temporal_id_nesting_flag != 1) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: " |
| "vps_temporal_id_nesting_flag must be 1 if " |
| "vps_max_sub_layers_minus1 is 0.\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| fixed(16, vps_reserved_0xffff_16bits, 0xffff); |
| |
| CHECK(FUNC(profile_tier_level)(ctx, rw, ¤t->profile_tier_level, |
| 1, current->vps_max_sub_layers_minus1)); |
| |
| flag(vps_sub_layer_ordering_info_present_flag); |
| for (i = (current->vps_sub_layer_ordering_info_present_flag ? |
| 0 : current->vps_max_sub_layers_minus1); |
| i <= current->vps_max_sub_layers_minus1; i++) { |
| ues(vps_max_dec_pic_buffering_minus1[i], |
| 0, HEVC_MAX_DPB_SIZE - 1, 1, i); |
| ues(vps_max_num_reorder_pics[i], |
| 0, current->vps_max_dec_pic_buffering_minus1[i], 1, i); |
| ues(vps_max_latency_increase_plus1[i], |
| 0, UINT32_MAX - 1, 1, i); |
| } |
| if (!current->vps_sub_layer_ordering_info_present_flag) { |
| for (i = 0; i < current->vps_max_sub_layers_minus1; i++) { |
| infer(vps_max_dec_pic_buffering_minus1[i], |
| current->vps_max_dec_pic_buffering_minus1[current->vps_max_sub_layers_minus1]); |
| infer(vps_max_num_reorder_pics[i], |
| current->vps_max_num_reorder_pics[current->vps_max_sub_layers_minus1]); |
| infer(vps_max_latency_increase_plus1[i], |
| current->vps_max_latency_increase_plus1[current->vps_max_sub_layers_minus1]); |
| } |
| } |
| |
| u(6, vps_max_layer_id, 0, HEVC_MAX_LAYERS - 1); |
| ue(vps_num_layer_sets_minus1, 0, HEVC_MAX_LAYER_SETS - 1); |
| for (i = 1; i <= current->vps_num_layer_sets_minus1; i++) { |
| for (j = 0; j <= current->vps_max_layer_id; j++) |
| flags(layer_id_included_flag[i][j], 2, i, j); |
| } |
| for (j = 0; j <= current->vps_max_layer_id; j++) |
| infer(layer_id_included_flag[0][j], j == 0); |
| |
| flag(vps_timing_info_present_flag); |
| if (current->vps_timing_info_present_flag) { |
| u(32, vps_num_units_in_tick, 1, UINT32_MAX); |
| u(32, vps_time_scale, 1, UINT32_MAX); |
| flag(vps_poc_proportional_to_timing_flag); |
| if (current->vps_poc_proportional_to_timing_flag) |
| ue(vps_num_ticks_poc_diff_one_minus1, 0, UINT32_MAX - 1); |
| ue(vps_num_hrd_parameters, 0, current->vps_num_layer_sets_minus1 + 1); |
| for (i = 0; i < current->vps_num_hrd_parameters; i++) { |
| ues(hrd_layer_set_idx[i], |
| current->vps_base_layer_internal_flag ? 0 : 1, |
| current->vps_num_layer_sets_minus1, 1, i); |
| if (i > 0) |
| flags(cprms_present_flag[i], 1, i); |
| else |
| infer(cprms_present_flag[0], 1); |
| |
| CHECK(FUNC(hrd_parameters)(ctx, rw, ¤t->hrd_parameters[i], |
| current->cprms_present_flag[i], |
| current->vps_max_sub_layers_minus1)); |
| } |
| } |
| |
| flag(vps_extension_flag); |
| if (current->vps_extension_flag) |
| CHECK(FUNC(extension_data)(ctx, rw, ¤t->extension_data)); |
| |
| CHECK(FUNC(rbsp_trailing_bits)(ctx, rw)); |
| |
| return 0; |
| } |
| |
| static int FUNC(st_ref_pic_set)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSTRefPicSet *current, int st_rps_idx, |
| const H265RawSPS *sps) |
| { |
| int err, i, j; |
| |
| if (st_rps_idx != 0) |
| flag(inter_ref_pic_set_prediction_flag); |
| else |
| infer(inter_ref_pic_set_prediction_flag, 0); |
| |
| if (current->inter_ref_pic_set_prediction_flag) { |
| unsigned int ref_rps_idx, num_delta_pocs, num_ref_pics; |
| const H265RawSTRefPicSet *ref; |
| int delta_rps, d_poc; |
| int ref_delta_poc_s0[HEVC_MAX_REFS], ref_delta_poc_s1[HEVC_MAX_REFS]; |
| int delta_poc_s0[HEVC_MAX_REFS], delta_poc_s1[HEVC_MAX_REFS]; |
| uint8_t used_by_curr_pic_s0[HEVC_MAX_REFS], |
| used_by_curr_pic_s1[HEVC_MAX_REFS]; |
| |
| if (st_rps_idx == sps->num_short_term_ref_pic_sets) |
| ue(delta_idx_minus1, 0, st_rps_idx - 1); |
| else |
| infer(delta_idx_minus1, 0); |
| |
| ref_rps_idx = st_rps_idx - (current->delta_idx_minus1 + 1); |
| ref = &sps->st_ref_pic_set[ref_rps_idx]; |
| num_delta_pocs = ref->num_negative_pics + ref->num_positive_pics; |
| av_assert0(num_delta_pocs < HEVC_MAX_DPB_SIZE); |
| |
| flag(delta_rps_sign); |
| ue(abs_delta_rps_minus1, 0, INT16_MAX); |
| delta_rps = (1 - 2 * current->delta_rps_sign) * |
| (current->abs_delta_rps_minus1 + 1); |
| |
| num_ref_pics = 0; |
| for (j = 0; j <= num_delta_pocs; j++) { |
| flags(used_by_curr_pic_flag[j], 1, j); |
| if (!current->used_by_curr_pic_flag[j]) |
| flags(use_delta_flag[j], 1, j); |
| else |
| infer(use_delta_flag[j], 1); |
| if (current->use_delta_flag[j]) |
| ++num_ref_pics; |
| } |
| if (num_ref_pics >= HEVC_MAX_DPB_SIZE) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: " |
| "short-term ref pic set %d " |
| "contains too many pictures.\n", st_rps_idx); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| // Since the stored form of an RPS here is actually the delta-step |
| // form used when inter_ref_pic_set_prediction_flag is not set, we |
| // need to reconstruct that here in order to be able to refer to |
| // the RPS later (which is required for parsing, because we don't |
| // even know what syntax elements appear without it). Therefore, |
| // this code takes the delta-step form of the reference set, turns |
| // it into the delta-array form, applies the prediction process of |
| // 7.4.8, converts the result back to the delta-step form, and |
| // stores that as the current set for future use. Note that the |
| // inferences here mean that writers using prediction will need |
| // to fill in the delta-step values correctly as well - since the |
| // whole RPS prediction process is somewhat overly sophisticated, |
| // this hopefully forms a useful check for them to ensure their |
| // predicted form actually matches what was intended rather than |
| // an onerous additional requirement. |
| |
| d_poc = 0; |
| for (i = 0; i < ref->num_negative_pics; i++) { |
| d_poc -= ref->delta_poc_s0_minus1[i] + 1; |
| ref_delta_poc_s0[i] = d_poc; |
| } |
| d_poc = 0; |
| for (i = 0; i < ref->num_positive_pics; i++) { |
| d_poc += ref->delta_poc_s1_minus1[i] + 1; |
| ref_delta_poc_s1[i] = d_poc; |
| } |
| |
| i = 0; |
| for (j = ref->num_positive_pics - 1; j >= 0; j--) { |
| d_poc = ref_delta_poc_s1[j] + delta_rps; |
| if (d_poc < 0 && current->use_delta_flag[ref->num_negative_pics + j]) { |
| delta_poc_s0[i] = d_poc; |
| used_by_curr_pic_s0[i++] = |
| current->used_by_curr_pic_flag[ref->num_negative_pics + j]; |
| } |
| } |
| if (delta_rps < 0 && current->use_delta_flag[num_delta_pocs]) { |
| delta_poc_s0[i] = delta_rps; |
| used_by_curr_pic_s0[i++] = |
| current->used_by_curr_pic_flag[num_delta_pocs]; |
| } |
| for (j = 0; j < ref->num_negative_pics; j++) { |
| d_poc = ref_delta_poc_s0[j] + delta_rps; |
| if (d_poc < 0 && current->use_delta_flag[j]) { |
| delta_poc_s0[i] = d_poc; |
| used_by_curr_pic_s0[i++] = current->used_by_curr_pic_flag[j]; |
| } |
| } |
| |
| infer(num_negative_pics, i); |
| for (i = 0; i < current->num_negative_pics; i++) { |
| infer(delta_poc_s0_minus1[i], |
| -(delta_poc_s0[i] - (i == 0 ? 0 : delta_poc_s0[i - 1])) - 1); |
| infer(used_by_curr_pic_s0_flag[i], used_by_curr_pic_s0[i]); |
| } |
| |
| i = 0; |
| for (j = ref->num_negative_pics - 1; j >= 0; j--) { |
| d_poc = ref_delta_poc_s0[j] + delta_rps; |
| if (d_poc > 0 && current->use_delta_flag[j]) { |
| delta_poc_s1[i] = d_poc; |
| used_by_curr_pic_s1[i++] = current->used_by_curr_pic_flag[j]; |
| } |
| } |
| if (delta_rps > 0 && current->use_delta_flag[num_delta_pocs]) { |
| delta_poc_s1[i] = delta_rps; |
| used_by_curr_pic_s1[i++] = |
| current->used_by_curr_pic_flag[num_delta_pocs]; |
| } |
| for (j = 0; j < ref->num_positive_pics; j++) { |
| d_poc = ref_delta_poc_s1[j] + delta_rps; |
| if (d_poc > 0 && current->use_delta_flag[ref->num_negative_pics + j]) { |
| delta_poc_s1[i] = d_poc; |
| used_by_curr_pic_s1[i++] = |
| current->used_by_curr_pic_flag[ref->num_negative_pics + j]; |
| } |
| } |
| |
| infer(num_positive_pics, i); |
| for (i = 0; i < current->num_positive_pics; i++) { |
| infer(delta_poc_s1_minus1[i], |
| delta_poc_s1[i] - (i == 0 ? 0 : delta_poc_s1[i - 1]) - 1); |
| infer(used_by_curr_pic_s1_flag[i], used_by_curr_pic_s1[i]); |
| } |
| |
| } else { |
| ue(num_negative_pics, 0, 15); |
| ue(num_positive_pics, 0, 15 - current->num_negative_pics); |
| |
| for (i = 0; i < current->num_negative_pics; i++) { |
| ues(delta_poc_s0_minus1[i], 0, INT16_MAX, 1, i); |
| flags(used_by_curr_pic_s0_flag[i], 1, i); |
| } |
| |
| for (i = 0; i < current->num_positive_pics; i++) { |
| ues(delta_poc_s1_minus1[i], 0, INT16_MAX, 1, i); |
| flags(used_by_curr_pic_s1_flag[i], 1, i); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(scaling_list_data)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawScalingList *current) |
| { |
| int sizeId, matrixId; |
| int err, n, i; |
| |
| for (sizeId = 0; sizeId < 4; sizeId++) { |
| for (matrixId = 0; matrixId < 6; matrixId += (sizeId == 3 ? 3 : 1)) { |
| flags(scaling_list_pred_mode_flag[sizeId][matrixId], |
| 2, sizeId, matrixId); |
| if (!current->scaling_list_pred_mode_flag[sizeId][matrixId]) { |
| ues(scaling_list_pred_matrix_id_delta[sizeId][matrixId], |
| 0, sizeId == 3 ? matrixId / 3 : matrixId, |
| 2, sizeId, matrixId); |
| } else { |
| n = FFMIN(64, 1 << (4 + (sizeId << 1))); |
| if (sizeId > 1) { |
| ses(scaling_list_dc_coef_minus8[sizeId - 2][matrixId], -7, +247, |
| 2, sizeId - 2, matrixId); |
| } |
| for (i = 0; i < n; i++) { |
| ses(scaling_list_delta_coeff[sizeId][matrixId][i], |
| -128, +127, 3, sizeId, matrixId, i); |
| } |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(sps_range_extension)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSPS *current) |
| { |
| int err; |
| |
| flag(transform_skip_rotation_enabled_flag); |
| flag(transform_skip_context_enabled_flag); |
| flag(implicit_rdpcm_enabled_flag); |
| flag(explicit_rdpcm_enabled_flag); |
| flag(extended_precision_processing_flag); |
| flag(intra_smoothing_disabled_flag); |
| flag(high_precision_offsets_enabled_flag); |
| flag(persistent_rice_adaptation_enabled_flag); |
| flag(cabac_bypass_alignment_enabled_flag); |
| |
| return 0; |
| } |
| |
| static int FUNC(sps_scc_extension)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSPS *current) |
| { |
| int err, comp, i; |
| |
| flag(sps_curr_pic_ref_enabled_flag); |
| |
| flag(palette_mode_enabled_flag); |
| if (current->palette_mode_enabled_flag) { |
| ue(palette_max_size, 0, 64); |
| ue(delta_palette_max_predictor_size, 0, 128); |
| |
| flag(sps_palette_predictor_initializer_present_flag); |
| if (current->sps_palette_predictor_initializer_present_flag) { |
| ue(sps_num_palette_predictor_initializer_minus1, 0, 128); |
| for (comp = 0; comp < (current->chroma_format_idc ? 3 : 1); comp++) { |
| int bit_depth = comp == 0 ? current->bit_depth_luma_minus8 + 8 |
| : current->bit_depth_chroma_minus8 + 8; |
| for (i = 0; i <= current->sps_num_palette_predictor_initializer_minus1; i++) |
| ubs(bit_depth, sps_palette_predictor_initializers[comp][i], 2, comp, i); |
| } |
| } |
| } |
| |
| u(2, motion_vector_resolution_control_idc, 0, 2); |
| flag(intra_boundary_filtering_disable_flag); |
| |
| return 0; |
| } |
| |
| static int FUNC(vui_parameters_default)(CodedBitstreamContext *ctx, |
| RWContext *rw, H265RawVUI *current, |
| H265RawSPS *sps) |
| { |
| infer(aspect_ratio_idc, 0); |
| |
| infer(video_format, 5); |
| infer(video_full_range_flag, 0); |
| infer(colour_primaries, 2); |
| infer(transfer_characteristics, 2); |
| infer(matrix_coefficients, 2); |
| |
| infer(chroma_sample_loc_type_top_field, 0); |
| infer(chroma_sample_loc_type_bottom_field, 0); |
| |
| infer(tiles_fixed_structure_flag, 0); |
| infer(motion_vectors_over_pic_boundaries_flag, 1); |
| infer(min_spatial_segmentation_idc, 0); |
| infer(max_bytes_per_pic_denom, 2); |
| infer(max_bits_per_min_cu_denom, 1); |
| infer(log2_max_mv_length_horizontal, 15); |
| infer(log2_max_mv_length_vertical, 15); |
| |
| return 0; |
| } |
| |
| static int FUNC(sps)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSPS *current) |
| { |
| CodedBitstreamH265Context *h265 = ctx->priv_data; |
| const H265RawVPS *vps; |
| int err, i; |
| unsigned int min_cb_log2_size_y, ctb_log2_size_y, |
| min_cb_size_y, min_tb_log2_size_y; |
| |
| HEADER("Sequence Parameter Set"); |
| |
| CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, HEVC_NAL_SPS)); |
| |
| ub(4, sps_video_parameter_set_id); |
| h265->active_vps = vps = h265->vps[current->sps_video_parameter_set_id]; |
| |
| u(3, sps_max_sub_layers_minus1, 0, HEVC_MAX_SUB_LAYERS - 1); |
| flag(sps_temporal_id_nesting_flag); |
| if (vps) { |
| if (vps->vps_max_sub_layers_minus1 > current->sps_max_sub_layers_minus1) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: " |
| "sps_max_sub_layers_minus1 (%d) must be less than or equal to " |
| "vps_max_sub_layers_minus1 (%d).\n", |
| vps->vps_max_sub_layers_minus1, |
| current->sps_max_sub_layers_minus1); |
| return AVERROR_INVALIDDATA; |
| } |
| if (vps->vps_temporal_id_nesting_flag && |
| !current->sps_temporal_id_nesting_flag) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: " |
| "sps_temporal_id_nesting_flag must be 1 if " |
| "vps_temporal_id_nesting_flag is 1.\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| } |
| |
| CHECK(FUNC(profile_tier_level)(ctx, rw, ¤t->profile_tier_level, |
| 1, current->sps_max_sub_layers_minus1)); |
| |
| ue(sps_seq_parameter_set_id, 0, 15); |
| |
| ue(chroma_format_idc, 0, 3); |
| if (current->chroma_format_idc == 3) |
| flag(separate_colour_plane_flag); |
| else |
| infer(separate_colour_plane_flag, 0); |
| |
| ue(pic_width_in_luma_samples, 1, HEVC_MAX_WIDTH); |
| ue(pic_height_in_luma_samples, 1, HEVC_MAX_HEIGHT); |
| |
| flag(conformance_window_flag); |
| if (current->conformance_window_flag) { |
| ue(conf_win_left_offset, 0, current->pic_width_in_luma_samples); |
| ue(conf_win_right_offset, 0, current->pic_width_in_luma_samples); |
| ue(conf_win_top_offset, 0, current->pic_height_in_luma_samples); |
| ue(conf_win_bottom_offset, 0, current->pic_height_in_luma_samples); |
| } else { |
| infer(conf_win_left_offset, 0); |
| infer(conf_win_right_offset, 0); |
| infer(conf_win_top_offset, 0); |
| infer(conf_win_bottom_offset, 0); |
| } |
| |
| ue(bit_depth_luma_minus8, 0, 8); |
| ue(bit_depth_chroma_minus8, 0, 8); |
| |
| ue(log2_max_pic_order_cnt_lsb_minus4, 0, 12); |
| |
| flag(sps_sub_layer_ordering_info_present_flag); |
| for (i = (current->sps_sub_layer_ordering_info_present_flag ? |
| 0 : current->sps_max_sub_layers_minus1); |
| i <= current->sps_max_sub_layers_minus1; i++) { |
| ues(sps_max_dec_pic_buffering_minus1[i], |
| 0, HEVC_MAX_DPB_SIZE - 1, 1, i); |
| ues(sps_max_num_reorder_pics[i], |
| 0, current->sps_max_dec_pic_buffering_minus1[i], 1, i); |
| ues(sps_max_latency_increase_plus1[i], |
| 0, UINT32_MAX - 1, 1, i); |
| } |
| if (!current->sps_sub_layer_ordering_info_present_flag) { |
| for (i = 0; i < current->sps_max_sub_layers_minus1; i++) { |
| infer(sps_max_dec_pic_buffering_minus1[i], |
| current->sps_max_dec_pic_buffering_minus1[current->sps_max_sub_layers_minus1]); |
| infer(sps_max_num_reorder_pics[i], |
| current->sps_max_num_reorder_pics[current->sps_max_sub_layers_minus1]); |
| infer(sps_max_latency_increase_plus1[i], |
| current->sps_max_latency_increase_plus1[current->sps_max_sub_layers_minus1]); |
| } |
| } |
| |
| ue(log2_min_luma_coding_block_size_minus3, 0, 3); |
| min_cb_log2_size_y = current->log2_min_luma_coding_block_size_minus3 + 3; |
| |
| ue(log2_diff_max_min_luma_coding_block_size, 0, 3); |
| ctb_log2_size_y = min_cb_log2_size_y + |
| current->log2_diff_max_min_luma_coding_block_size; |
| |
| min_cb_size_y = 1 << min_cb_log2_size_y; |
| if (current->pic_width_in_luma_samples % min_cb_size_y || |
| current->pic_height_in_luma_samples % min_cb_size_y) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid dimensions: %ux%u not divisible " |
| "by MinCbSizeY = %u.\n", current->pic_width_in_luma_samples, |
| current->pic_height_in_luma_samples, min_cb_size_y); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| ue(log2_min_luma_transform_block_size_minus2, 0, min_cb_log2_size_y - 3); |
| min_tb_log2_size_y = current->log2_min_luma_transform_block_size_minus2 + 2; |
| |
| ue(log2_diff_max_min_luma_transform_block_size, |
| 0, FFMIN(ctb_log2_size_y, 5) - min_tb_log2_size_y); |
| |
| ue(max_transform_hierarchy_depth_inter, |
| 0, ctb_log2_size_y - min_tb_log2_size_y); |
| ue(max_transform_hierarchy_depth_intra, |
| 0, ctb_log2_size_y - min_tb_log2_size_y); |
| |
| flag(scaling_list_enabled_flag); |
| if (current->scaling_list_enabled_flag) { |
| flag(sps_scaling_list_data_present_flag); |
| if (current->sps_scaling_list_data_present_flag) |
| CHECK(FUNC(scaling_list_data)(ctx, rw, ¤t->scaling_list)); |
| } else { |
| infer(sps_scaling_list_data_present_flag, 0); |
| } |
| |
| flag(amp_enabled_flag); |
| flag(sample_adaptive_offset_enabled_flag); |
| |
| flag(pcm_enabled_flag); |
| if (current->pcm_enabled_flag) { |
| u(4, pcm_sample_bit_depth_luma_minus1, |
| 0, current->bit_depth_luma_minus8 + 8 - 1); |
| u(4, pcm_sample_bit_depth_chroma_minus1, |
| 0, current->bit_depth_chroma_minus8 + 8 - 1); |
| |
| ue(log2_min_pcm_luma_coding_block_size_minus3, |
| FFMIN(min_cb_log2_size_y, 5) - 3, FFMIN(ctb_log2_size_y, 5) - 3); |
| ue(log2_diff_max_min_pcm_luma_coding_block_size, |
| 0, FFMIN(ctb_log2_size_y, 5) - (current->log2_min_pcm_luma_coding_block_size_minus3 + 3)); |
| |
| flag(pcm_loop_filter_disabled_flag); |
| } |
| |
| ue(num_short_term_ref_pic_sets, 0, HEVC_MAX_SHORT_TERM_REF_PIC_SETS); |
| for (i = 0; i < current->num_short_term_ref_pic_sets; i++) |
| CHECK(FUNC(st_ref_pic_set)(ctx, rw, ¤t->st_ref_pic_set[i], i, current)); |
| |
| flag(long_term_ref_pics_present_flag); |
| if (current->long_term_ref_pics_present_flag) { |
| ue(num_long_term_ref_pics_sps, 0, HEVC_MAX_LONG_TERM_REF_PICS); |
| for (i = 0; i < current->num_long_term_ref_pics_sps; i++) { |
| ubs(current->log2_max_pic_order_cnt_lsb_minus4 + 4, |
| lt_ref_pic_poc_lsb_sps[i], 1, i); |
| flags(used_by_curr_pic_lt_sps_flag[i], 1, i); |
| } |
| } |
| |
| flag(sps_temporal_mvp_enabled_flag); |
| flag(strong_intra_smoothing_enabled_flag); |
| |
| flag(vui_parameters_present_flag); |
| if (current->vui_parameters_present_flag) |
| CHECK(FUNC(vui_parameters)(ctx, rw, ¤t->vui, current)); |
| else |
| CHECK(FUNC(vui_parameters_default)(ctx, rw, ¤t->vui, current)); |
| |
| flag(sps_extension_present_flag); |
| if (current->sps_extension_present_flag) { |
| flag(sps_range_extension_flag); |
| flag(sps_multilayer_extension_flag); |
| flag(sps_3d_extension_flag); |
| flag(sps_scc_extension_flag); |
| ub(4, sps_extension_4bits); |
| } |
| |
| if (current->sps_range_extension_flag) |
| CHECK(FUNC(sps_range_extension)(ctx, rw, current)); |
| if (current->sps_multilayer_extension_flag) |
| return AVERROR_PATCHWELCOME; |
| if (current->sps_3d_extension_flag) |
| return AVERROR_PATCHWELCOME; |
| if (current->sps_scc_extension_flag) |
| CHECK(FUNC(sps_scc_extension)(ctx, rw, current)); |
| if (current->sps_extension_4bits) |
| CHECK(FUNC(extension_data)(ctx, rw, ¤t->extension_data)); |
| |
| CHECK(FUNC(rbsp_trailing_bits)(ctx, rw)); |
| |
| return 0; |
| } |
| |
| static int FUNC(pps_range_extension)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawPPS *current) |
| { |
| CodedBitstreamH265Context *h265 = ctx->priv_data; |
| const H265RawSPS *sps = h265->active_sps; |
| int err, i; |
| |
| if (current->transform_skip_enabled_flag) |
| ue(log2_max_transform_skip_block_size_minus2, 0, 3); |
| flag(cross_component_prediction_enabled_flag); |
| |
| flag(chroma_qp_offset_list_enabled_flag); |
| if (current->chroma_qp_offset_list_enabled_flag) { |
| ue(diff_cu_chroma_qp_offset_depth, |
| 0, sps->log2_diff_max_min_luma_coding_block_size); |
| ue(chroma_qp_offset_list_len_minus1, 0, 5); |
| for (i = 0; i <= current->chroma_qp_offset_list_len_minus1; i++) { |
| ses(cb_qp_offset_list[i], -12, +12, 1, i); |
| ses(cr_qp_offset_list[i], -12, +12, 1, i); |
| } |
| } |
| |
| ue(log2_sao_offset_scale_luma, 0, FFMAX(0, sps->bit_depth_luma_minus8 - 2)); |
| ue(log2_sao_offset_scale_chroma, 0, FFMAX(0, sps->bit_depth_chroma_minus8 - 2)); |
| |
| return 0; |
| } |
| |
| static int FUNC(pps_scc_extension)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawPPS *current) |
| { |
| int err, comp, i; |
| |
| flag(pps_curr_pic_ref_enabled_flag); |
| |
| flag(residual_adaptive_colour_transform_enabled_flag); |
| if (current->residual_adaptive_colour_transform_enabled_flag) { |
| flag(pps_slice_act_qp_offsets_present_flag); |
| se(pps_act_y_qp_offset_plus5, -7, +17); |
| se(pps_act_cb_qp_offset_plus5, -7, +17); |
| se(pps_act_cr_qp_offset_plus3, -9, +15); |
| } else { |
| infer(pps_slice_act_qp_offsets_present_flag, 0); |
| infer(pps_act_y_qp_offset_plus5, 0); |
| infer(pps_act_cb_qp_offset_plus5, 0); |
| infer(pps_act_cr_qp_offset_plus3, 0); |
| } |
| |
| flag(pps_palette_predictor_initializer_present_flag); |
| if (current->pps_palette_predictor_initializer_present_flag) { |
| ue(pps_num_palette_predictor_initializer, 0, 128); |
| if (current->pps_num_palette_predictor_initializer > 0) { |
| flag(monochrome_palette_flag); |
| ue(luma_bit_depth_entry_minus8, 0, 8); |
| if (!current->monochrome_palette_flag) |
| ue(chroma_bit_depth_entry_minus8, 0, 8); |
| for (comp = 0; comp < (current->monochrome_palette_flag ? 1 : 3); comp++) { |
| int bit_depth = comp == 0 ? current->luma_bit_depth_entry_minus8 + 8 |
| : current->chroma_bit_depth_entry_minus8 + 8; |
| for (i = 0; i < current->pps_num_palette_predictor_initializer; i++) |
| ubs(bit_depth, pps_palette_predictor_initializers[comp][i], 2, comp, i); |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(pps)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawPPS *current) |
| { |
| CodedBitstreamH265Context *h265 = ctx->priv_data; |
| const H265RawSPS *sps; |
| int err, i; |
| |
| HEADER("Picture Parameter Set"); |
| |
| CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, HEVC_NAL_PPS)); |
| |
| ue(pps_pic_parameter_set_id, 0, 63); |
| ue(pps_seq_parameter_set_id, 0, 15); |
| sps = h265->sps[current->pps_seq_parameter_set_id]; |
| if (!sps) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n", |
| current->pps_seq_parameter_set_id); |
| return AVERROR_INVALIDDATA; |
| } |
| h265->active_sps = sps; |
| |
| flag(dependent_slice_segments_enabled_flag); |
| flag(output_flag_present_flag); |
| ub(3, num_extra_slice_header_bits); |
| flag(sign_data_hiding_enabled_flag); |
| flag(cabac_init_present_flag); |
| |
| ue(num_ref_idx_l0_default_active_minus1, 0, 14); |
| ue(num_ref_idx_l1_default_active_minus1, 0, 14); |
| |
| se(init_qp_minus26, -(26 + 6 * sps->bit_depth_luma_minus8), +25); |
| |
| flag(constrained_intra_pred_flag); |
| flag(transform_skip_enabled_flag); |
| flag(cu_qp_delta_enabled_flag); |
| if (current->cu_qp_delta_enabled_flag) |
| ue(diff_cu_qp_delta_depth, |
| 0, sps->log2_diff_max_min_luma_coding_block_size); |
| else |
| infer(diff_cu_qp_delta_depth, 0); |
| |
| se(pps_cb_qp_offset, -12, +12); |
| se(pps_cr_qp_offset, -12, +12); |
| flag(pps_slice_chroma_qp_offsets_present_flag); |
| |
| flag(weighted_pred_flag); |
| flag(weighted_bipred_flag); |
| |
| flag(transquant_bypass_enabled_flag); |
| flag(tiles_enabled_flag); |
| flag(entropy_coding_sync_enabled_flag); |
| |
| if (current->tiles_enabled_flag) { |
| ue(num_tile_columns_minus1, 0, HEVC_MAX_TILE_COLUMNS); |
| ue(num_tile_rows_minus1, 0, HEVC_MAX_TILE_ROWS); |
| flag(uniform_spacing_flag); |
| if (!current->uniform_spacing_flag) { |
| for (i = 0; i < current->num_tile_columns_minus1; i++) |
| ues(column_width_minus1[i], 0, sps->pic_width_in_luma_samples, 1, i); |
| for (i = 0; i < current->num_tile_rows_minus1; i++) |
| ues(row_height_minus1[i], 0, sps->pic_height_in_luma_samples, 1, i); |
| } |
| flag(loop_filter_across_tiles_enabled_flag); |
| } else { |
| infer(num_tile_columns_minus1, 0); |
| infer(num_tile_rows_minus1, 0); |
| } |
| |
| flag(pps_loop_filter_across_slices_enabled_flag); |
| flag(deblocking_filter_control_present_flag); |
| if (current->deblocking_filter_control_present_flag) { |
| flag(deblocking_filter_override_enabled_flag); |
| flag(pps_deblocking_filter_disabled_flag); |
| if (!current->pps_deblocking_filter_disabled_flag) { |
| se(pps_beta_offset_div2, -6, +6); |
| se(pps_tc_offset_div2, -6, +6); |
| } else { |
| infer(pps_beta_offset_div2, 0); |
| infer(pps_tc_offset_div2, 0); |
| } |
| } else { |
| infer(deblocking_filter_override_enabled_flag, 0); |
| infer(pps_deblocking_filter_disabled_flag, 0); |
| infer(pps_beta_offset_div2, 0); |
| infer(pps_tc_offset_div2, 0); |
| } |
| |
| flag(pps_scaling_list_data_present_flag); |
| if (current->pps_scaling_list_data_present_flag) |
| CHECK(FUNC(scaling_list_data)(ctx, rw, ¤t->scaling_list)); |
| |
| flag(lists_modification_present_flag); |
| |
| ue(log2_parallel_merge_level_minus2, |
| 0, (sps->log2_min_luma_coding_block_size_minus3 + 3 + |
| sps->log2_diff_max_min_luma_coding_block_size - 2)); |
| |
| flag(slice_segment_header_extension_present_flag); |
| |
| flag(pps_extension_present_flag); |
| if (current->pps_extension_present_flag) { |
| flag(pps_range_extension_flag); |
| flag(pps_multilayer_extension_flag); |
| flag(pps_3d_extension_flag); |
| flag(pps_scc_extension_flag); |
| ub(4, pps_extension_4bits); |
| } |
| if (current->pps_range_extension_flag) |
| CHECK(FUNC(pps_range_extension)(ctx, rw, current)); |
| if (current->pps_multilayer_extension_flag) |
| return AVERROR_PATCHWELCOME; |
| if (current->pps_3d_extension_flag) |
| return AVERROR_PATCHWELCOME; |
| if (current->pps_scc_extension_flag) |
| CHECK(FUNC(pps_scc_extension)(ctx, rw, current)); |
| if (current->pps_extension_4bits) |
| CHECK(FUNC(extension_data)(ctx, rw, ¤t->extension_data)); |
| |
| CHECK(FUNC(rbsp_trailing_bits)(ctx, rw)); |
| |
| return 0; |
| } |
| |
| static int FUNC(aud)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawAUD *current) |
| { |
| int err; |
| |
| HEADER("Access Unit Delimiter"); |
| |
| CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, HEVC_NAL_AUD)); |
| |
| u(3, pic_type, 0, 2); |
| |
| CHECK(FUNC(rbsp_trailing_bits)(ctx, rw)); |
| |
| return 0; |
| } |
| |
| static int FUNC(ref_pic_lists_modification)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSliceHeader *current, |
| unsigned int num_pic_total_curr) |
| { |
| unsigned int entry_size; |
| int err, i; |
| |
| entry_size = av_log2(num_pic_total_curr - 1) + 1; |
| |
| flag(ref_pic_list_modification_flag_l0); |
| if (current->ref_pic_list_modification_flag_l0) { |
| for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) |
| us(entry_size, list_entry_l0[i], 0, num_pic_total_curr - 1, 1, i); |
| } |
| |
| if (current->slice_type == HEVC_SLICE_B) { |
| flag(ref_pic_list_modification_flag_l1); |
| if (current->ref_pic_list_modification_flag_l1) { |
| for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) |
| us(entry_size, list_entry_l1[i], 0, num_pic_total_curr - 1, 1, i); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(pred_weight_table)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSliceHeader *current) |
| { |
| CodedBitstreamH265Context *h265 = ctx->priv_data; |
| const H265RawSPS *sps = h265->active_sps; |
| int err, i, j; |
| int chroma = !sps->separate_colour_plane_flag && |
| sps->chroma_format_idc != 0; |
| |
| ue(luma_log2_weight_denom, 0, 7); |
| if (chroma) |
| se(delta_chroma_log2_weight_denom, -7, 7); |
| else |
| infer(delta_chroma_log2_weight_denom, 0); |
| |
| for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) { |
| if (1 /* is not same POC and same layer_id */) |
| flags(luma_weight_l0_flag[i], 1, i); |
| else |
| infer(luma_weight_l0_flag[i], 0); |
| } |
| if (chroma) { |
| for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) { |
| if (1 /* is not same POC and same layer_id */) |
| flags(chroma_weight_l0_flag[i], 1, i); |
| else |
| infer(chroma_weight_l0_flag[i], 0); |
| } |
| } |
| |
| for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) { |
| if (current->luma_weight_l0_flag[i]) { |
| ses(delta_luma_weight_l0[i], -128, +127, 1, i); |
| ses(luma_offset_l0[i], |
| -(1 << (sps->bit_depth_luma_minus8 + 8 - 1)), |
| ((1 << (sps->bit_depth_luma_minus8 + 8 - 1)) - 1), 1, i); |
| } else { |
| infer(delta_luma_weight_l0[i], 0); |
| infer(luma_offset_l0[i], 0); |
| } |
| if (current->chroma_weight_l0_flag[i]) { |
| for (j = 0; j < 2; j++) { |
| ses(delta_chroma_weight_l0[i][j], -128, +127, 2, i, j); |
| ses(chroma_offset_l0[i][j], |
| -(4 << (sps->bit_depth_chroma_minus8 + 8 - 1)), |
| ((4 << (sps->bit_depth_chroma_minus8 + 8 - 1)) - 1), 2, i, j); |
| } |
| } else { |
| for (j = 0; j < 2; j++) { |
| infer(delta_chroma_weight_l0[i][j], 0); |
| infer(chroma_offset_l0[i][j], 0); |
| } |
| } |
| } |
| |
| if (current->slice_type == HEVC_SLICE_B) { |
| for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) { |
| if (1 /* RefPicList1[i] is not CurrPic, nor is it in a different layer */) |
| flags(luma_weight_l1_flag[i], 1, i); |
| else |
| infer(luma_weight_l1_flag[i], 0); |
| } |
| if (chroma) { |
| for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) { |
| if (1 /* RefPicList1[i] is not CurrPic, nor is it in a different layer */) |
| flags(chroma_weight_l1_flag[i], 1, i); |
| else |
| infer(chroma_weight_l1_flag[i], 0); |
| } |
| } |
| |
| for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) { |
| if (current->luma_weight_l1_flag[i]) { |
| ses(delta_luma_weight_l1[i], -128, +127, 1, i); |
| ses(luma_offset_l1[i], |
| -(1 << (sps->bit_depth_luma_minus8 + 8 - 1)), |
| ((1 << (sps->bit_depth_luma_minus8 + 8 - 1)) - 1), 1, i); |
| } else { |
| infer(delta_luma_weight_l1[i], 0); |
| infer(luma_offset_l1[i], 0); |
| } |
| if (current->chroma_weight_l1_flag[i]) { |
| for (j = 0; j < 2; j++) { |
| ses(delta_chroma_weight_l1[i][j], -128, +127, 2, i, j); |
| ses(chroma_offset_l1[i][j], |
| -(4 << (sps->bit_depth_chroma_minus8 + 8 - 1)), |
| ((4 << (sps->bit_depth_chroma_minus8 + 8 - 1)) - 1), 2, i, j); |
| } |
| } else { |
| for (j = 0; j < 2; j++) { |
| infer(delta_chroma_weight_l1[i][j], 0); |
| infer(chroma_offset_l1[i][j], 0); |
| } |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(slice_segment_header)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSliceHeader *current) |
| { |
| CodedBitstreamH265Context *h265 = ctx->priv_data; |
| const H265RawSPS *sps; |
| const H265RawPPS *pps; |
| unsigned int min_cb_log2_size_y, ctb_log2_size_y, ctb_size_y; |
| unsigned int pic_width_in_ctbs_y, pic_height_in_ctbs_y, pic_size_in_ctbs_y; |
| unsigned int num_pic_total_curr = 0; |
| int err, i; |
| |
| HEADER("Slice Segment Header"); |
| |
| CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, -1)); |
| |
| flag(first_slice_segment_in_pic_flag); |
| |
| if (current->nal_unit_header.nal_unit_type >= HEVC_NAL_BLA_W_LP && |
| current->nal_unit_header.nal_unit_type <= HEVC_NAL_RSV_IRAP_VCL23) |
| flag(no_output_of_prior_pics_flag); |
| |
| ue(slice_pic_parameter_set_id, 0, 63); |
| |
| pps = h265->pps[current->slice_pic_parameter_set_id]; |
| if (!pps) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "PPS id %d not available.\n", |
| current->slice_pic_parameter_set_id); |
| return AVERROR_INVALIDDATA; |
| } |
| h265->active_pps = pps; |
| |
| sps = h265->sps[pps->pps_seq_parameter_set_id]; |
| if (!sps) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n", |
| pps->pps_seq_parameter_set_id); |
| return AVERROR_INVALIDDATA; |
| } |
| h265->active_sps = sps; |
| |
| min_cb_log2_size_y = sps->log2_min_luma_coding_block_size_minus3 + 3; |
| ctb_log2_size_y = min_cb_log2_size_y + sps->log2_diff_max_min_luma_coding_block_size; |
| ctb_size_y = 1 << ctb_log2_size_y; |
| pic_width_in_ctbs_y = |
| (sps->pic_width_in_luma_samples + ctb_size_y - 1) / ctb_size_y; |
| pic_height_in_ctbs_y = |
| (sps->pic_height_in_luma_samples + ctb_size_y - 1) / ctb_size_y; |
| pic_size_in_ctbs_y = pic_width_in_ctbs_y * pic_height_in_ctbs_y; |
| |
| if (!current->first_slice_segment_in_pic_flag) { |
| unsigned int address_size = av_log2(pic_size_in_ctbs_y - 1) + 1; |
| if (pps->dependent_slice_segments_enabled_flag) |
| flag(dependent_slice_segment_flag); |
| else |
| infer(dependent_slice_segment_flag, 0); |
| u(address_size, slice_segment_address, 0, pic_size_in_ctbs_y - 1); |
| } else { |
| infer(dependent_slice_segment_flag, 0); |
| } |
| |
| if (!current->dependent_slice_segment_flag) { |
| for (i = 0; i < pps->num_extra_slice_header_bits; i++) |
| flags(slice_reserved_flag[i], 1, i); |
| |
| ue(slice_type, 0, 2); |
| |
| if (pps->output_flag_present_flag) |
| flag(pic_output_flag); |
| |
| if (sps->separate_colour_plane_flag) |
| u(2, colour_plane_id, 0, 2); |
| |
| if (current->nal_unit_header.nal_unit_type != HEVC_NAL_IDR_W_RADL && |
| current->nal_unit_header.nal_unit_type != HEVC_NAL_IDR_N_LP) { |
| const H265RawSTRefPicSet *rps; |
| |
| ub(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, slice_pic_order_cnt_lsb); |
| |
| flag(short_term_ref_pic_set_sps_flag); |
| if (!current->short_term_ref_pic_set_sps_flag) { |
| CHECK(FUNC(st_ref_pic_set)(ctx, rw, ¤t->short_term_ref_pic_set, |
| sps->num_short_term_ref_pic_sets, sps)); |
| rps = ¤t->short_term_ref_pic_set; |
| } else if (sps->num_short_term_ref_pic_sets > 1) { |
| unsigned int idx_size = av_log2(sps->num_short_term_ref_pic_sets - 1) + 1; |
| u(idx_size, short_term_ref_pic_set_idx, |
| 0, sps->num_short_term_ref_pic_sets - 1); |
| rps = &sps->st_ref_pic_set[current->short_term_ref_pic_set_idx]; |
| } else { |
| infer(short_term_ref_pic_set_idx, 0); |
| rps = &sps->st_ref_pic_set[0]; |
| } |
| |
| num_pic_total_curr = 0; |
| for (i = 0; i < rps->num_negative_pics; i++) |
| if (rps->used_by_curr_pic_s0_flag[i]) |
| ++num_pic_total_curr; |
| for (i = 0; i < rps->num_positive_pics; i++) |
| if (rps->used_by_curr_pic_s1_flag[i]) |
| ++num_pic_total_curr; |
| |
| if (sps->long_term_ref_pics_present_flag) { |
| unsigned int idx_size; |
| |
| if (sps->num_long_term_ref_pics_sps > 0) { |
| ue(num_long_term_sps, 0, sps->num_long_term_ref_pics_sps); |
| idx_size = av_log2(sps->num_long_term_ref_pics_sps - 1) + 1; |
| } else { |
| infer(num_long_term_sps, 0); |
| idx_size = 0; |
| } |
| ue(num_long_term_pics, 0, HEVC_MAX_REFS - current->num_long_term_sps); |
| |
| for (i = 0; i < current->num_long_term_sps + |
| current->num_long_term_pics; i++) { |
| if (i < current->num_long_term_sps) { |
| if (sps->num_long_term_ref_pics_sps > 1) |
| us(idx_size, lt_idx_sps[i], |
| 0, sps->num_long_term_ref_pics_sps - 1, 1, i); |
| if (sps->used_by_curr_pic_lt_sps_flag[current->lt_idx_sps[i]]) |
| ++num_pic_total_curr; |
| } else { |
| ubs(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, poc_lsb_lt[i], 1, i); |
| flags(used_by_curr_pic_lt_flag[i], 1, i); |
| if (current->used_by_curr_pic_lt_flag[i]) |
| ++num_pic_total_curr; |
| } |
| flags(delta_poc_msb_present_flag[i], 1, i); |
| if (current->delta_poc_msb_present_flag[i]) |
| ues(delta_poc_msb_cycle_lt[i], 0, UINT32_MAX - 1, 1, i); |
| else |
| infer(delta_poc_msb_cycle_lt[i], 0); |
| } |
| } |
| |
| if (sps->sps_temporal_mvp_enabled_flag) |
| flag(slice_temporal_mvp_enabled_flag); |
| else |
| infer(slice_temporal_mvp_enabled_flag, 0); |
| |
| if (pps->pps_curr_pic_ref_enabled_flag) |
| ++num_pic_total_curr; |
| } |
| |
| if (sps->sample_adaptive_offset_enabled_flag) { |
| flag(slice_sao_luma_flag); |
| if (!sps->separate_colour_plane_flag && sps->chroma_format_idc != 0) |
| flag(slice_sao_chroma_flag); |
| else |
| infer(slice_sao_chroma_flag, 0); |
| } else { |
| infer(slice_sao_luma_flag, 0); |
| infer(slice_sao_chroma_flag, 0); |
| } |
| |
| if (current->slice_type == HEVC_SLICE_P || |
| current->slice_type == HEVC_SLICE_B) { |
| flag(num_ref_idx_active_override_flag); |
| if (current->num_ref_idx_active_override_flag) { |
| ue(num_ref_idx_l0_active_minus1, 0, 14); |
| if (current->slice_type == HEVC_SLICE_B) |
| ue(num_ref_idx_l1_active_minus1, 0, 14); |
| else |
| infer(num_ref_idx_l1_active_minus1, pps->num_ref_idx_l1_default_active_minus1); |
| } else { |
| infer(num_ref_idx_l0_active_minus1, pps->num_ref_idx_l0_default_active_minus1); |
| infer(num_ref_idx_l1_active_minus1, pps->num_ref_idx_l1_default_active_minus1); |
| } |
| |
| if (pps->lists_modification_present_flag && num_pic_total_curr > 1) |
| CHECK(FUNC(ref_pic_lists_modification)(ctx, rw, current, |
| num_pic_total_curr)); |
| |
| if (current->slice_type == HEVC_SLICE_B) |
| flag(mvd_l1_zero_flag); |
| if (pps->cabac_init_present_flag) |
| flag(cabac_init_flag); |
| else |
| infer(cabac_init_flag, 0); |
| if (current->slice_temporal_mvp_enabled_flag) { |
| if (current->slice_type == HEVC_SLICE_B) |
| flag(collocated_from_l0_flag); |
| else |
| infer(collocated_from_l0_flag, 1); |
| if (current->collocated_from_l0_flag) { |
| if (current->num_ref_idx_l0_active_minus1 > 0) |
| ue(collocated_ref_idx, 0, current->num_ref_idx_l0_active_minus1); |
| else |
| infer(collocated_ref_idx, 0); |
| } else { |
| if (current->num_ref_idx_l1_active_minus1 > 0) |
| ue(collocated_ref_idx, 0, current->num_ref_idx_l1_active_minus1); |
| else |
| infer(collocated_ref_idx, 0); |
| } |
| } |
| |
| if ((pps->weighted_pred_flag && current->slice_type == HEVC_SLICE_P) || |
| (pps->weighted_bipred_flag && current->slice_type == HEVC_SLICE_B)) |
| CHECK(FUNC(pred_weight_table)(ctx, rw, current)); |
| |
| ue(five_minus_max_num_merge_cand, 0, 4); |
| if (sps->motion_vector_resolution_control_idc == 2) |
| flag(use_integer_mv_flag); |
| else |
| infer(use_integer_mv_flag, sps->motion_vector_resolution_control_idc); |
| } |
| |
| se(slice_qp_delta, |
| - 6 * sps->bit_depth_luma_minus8 - (pps->init_qp_minus26 + 26), |
| + 51 - (pps->init_qp_minus26 + 26)); |
| if (pps->pps_slice_chroma_qp_offsets_present_flag) { |
| se(slice_cb_qp_offset, -12, +12); |
| se(slice_cr_qp_offset, -12, +12); |
| } else { |
| infer(slice_cb_qp_offset, 0); |
| infer(slice_cr_qp_offset, 0); |
| } |
| if (pps->pps_slice_act_qp_offsets_present_flag) { |
| se(slice_act_y_qp_offset, |
| -12 - (pps->pps_act_y_qp_offset_plus5 - 5), |
| +12 - (pps->pps_act_y_qp_offset_plus5 - 5)); |
| se(slice_act_cb_qp_offset, |
| -12 - (pps->pps_act_cb_qp_offset_plus5 - 5), |
| +12 - (pps->pps_act_cb_qp_offset_plus5 - 5)); |
| se(slice_act_cr_qp_offset, |
| -12 - (pps->pps_act_cr_qp_offset_plus3 - 3), |
| +12 - (pps->pps_act_cr_qp_offset_plus3 - 3)); |
| } else { |
| infer(slice_act_y_qp_offset, 0); |
| infer(slice_act_cb_qp_offset, 0); |
| infer(slice_act_cr_qp_offset, 0); |
| } |
| if (pps->chroma_qp_offset_list_enabled_flag) |
| flag(cu_chroma_qp_offset_enabled_flag); |
| else |
| infer(cu_chroma_qp_offset_enabled_flag, 0); |
| |
| if (pps->deblocking_filter_override_enabled_flag) |
| flag(deblocking_filter_override_flag); |
| else |
| infer(deblocking_filter_override_flag, 0); |
| if (current->deblocking_filter_override_flag) { |
| flag(slice_deblocking_filter_disabled_flag); |
| if (!current->slice_deblocking_filter_disabled_flag) { |
| se(slice_beta_offset_div2, -6, +6); |
| se(slice_tc_offset_div2, -6, +6); |
| } else { |
| infer(slice_beta_offset_div2, pps->pps_beta_offset_div2); |
| infer(slice_tc_offset_div2, pps->pps_tc_offset_div2); |
| } |
| } else { |
| infer(slice_deblocking_filter_disabled_flag, |
| pps->pps_deblocking_filter_disabled_flag); |
| infer(slice_beta_offset_div2, pps->pps_beta_offset_div2); |
| infer(slice_tc_offset_div2, pps->pps_tc_offset_div2); |
| } |
| if (pps->pps_loop_filter_across_slices_enabled_flag && |
| (current->slice_sao_luma_flag || current->slice_sao_chroma_flag || |
| !current->slice_deblocking_filter_disabled_flag)) |
| flag(slice_loop_filter_across_slices_enabled_flag); |
| else |
| infer(slice_loop_filter_across_slices_enabled_flag, |
| pps->pps_loop_filter_across_slices_enabled_flag); |
| } |
| |
| if (pps->tiles_enabled_flag || pps->entropy_coding_sync_enabled_flag) { |
| unsigned int num_entry_point_offsets_limit; |
| if (!pps->tiles_enabled_flag && pps->entropy_coding_sync_enabled_flag) |
| num_entry_point_offsets_limit = pic_height_in_ctbs_y - 1; |
| else if (pps->tiles_enabled_flag && !pps->entropy_coding_sync_enabled_flag) |
| num_entry_point_offsets_limit = |
| (pps->num_tile_columns_minus1 + 1) * (pps->num_tile_rows_minus1 + 1); |
| else |
| num_entry_point_offsets_limit = |
| (pps->num_tile_columns_minus1 + 1) * pic_height_in_ctbs_y - 1; |
| ue(num_entry_point_offsets, 0, num_entry_point_offsets_limit); |
| |
| if (current->num_entry_point_offsets > HEVC_MAX_ENTRY_POINT_OFFSETS) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many entry points: " |
| "%"PRIu16".\n", current->num_entry_point_offsets); |
| return AVERROR_PATCHWELCOME; |
| } |
| |
| if (current->num_entry_point_offsets > 0) { |
| ue(offset_len_minus1, 0, 31); |
| for (i = 0; i < current->num_entry_point_offsets; i++) |
| ubs(current->offset_len_minus1 + 1, entry_point_offset_minus1[i], 1, i); |
| } |
| } |
| |
| if (pps->slice_segment_header_extension_present_flag) { |
| ue(slice_segment_header_extension_length, 0, 256); |
| for (i = 0; i < current->slice_segment_header_extension_length; i++) |
| us(8, slice_segment_header_extension_data_byte[i], 0x00, 0xff, 1, i); |
| } |
| |
| CHECK(FUNC(byte_alignment)(ctx, rw)); |
| |
| return 0; |
| } |
| |
| static int FUNC(sei_buffering_period) |
| (CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSEIBufferingPeriod *current, SEIMessageState *sei) |
| { |
| CodedBitstreamH265Context *h265 = ctx->priv_data; |
| const H265RawSPS *sps; |
| const H265RawHRDParameters *hrd; |
| int err, i, length; |
| |
| #ifdef READ |
| int start_pos, end_pos; |
| start_pos = get_bits_count(rw); |
| #endif |
| |
| HEADER("Buffering Period"); |
| |
| ue(bp_seq_parameter_set_id, 0, HEVC_MAX_SPS_COUNT - 1); |
| |
| sps = h265->sps[current->bp_seq_parameter_set_id]; |
| if (!sps) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n", |
| current->bp_seq_parameter_set_id); |
| return AVERROR_INVALIDDATA; |
| } |
| h265->active_sps = sps; |
| |
| if (!sps->vui_parameters_present_flag || |
| !sps->vui.vui_hrd_parameters_present_flag) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Buffering period SEI requires " |
| "HRD parameters to be present in SPS.\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| hrd = &sps->vui.hrd_parameters; |
| if (!hrd->nal_hrd_parameters_present_flag && |
| !hrd->vcl_hrd_parameters_present_flag) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Buffering period SEI requires " |
| "NAL or VCL HRD parameters to be present.\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if (!hrd->sub_pic_hrd_params_present_flag) |
| flag(irap_cpb_params_present_flag); |
| else |
| infer(irap_cpb_params_present_flag, 0); |
| if (current->irap_cpb_params_present_flag) { |
| length = hrd->au_cpb_removal_delay_length_minus1 + 1; |
| ub(length, cpb_delay_offset); |
| length = hrd->dpb_output_delay_length_minus1 + 1; |
| ub(length, dpb_delay_offset); |
| } else { |
| infer(cpb_delay_offset, 0); |
| infer(dpb_delay_offset, 0); |
| } |
| |
| flag(concatenation_flag); |
| |
| length = hrd->au_cpb_removal_delay_length_minus1 + 1; |
| ub(length, au_cpb_removal_delay_delta_minus1); |
| |
| if (hrd->nal_hrd_parameters_present_flag) { |
| for (i = 0; i <= hrd->cpb_cnt_minus1[0]; i++) { |
| length = hrd->initial_cpb_removal_delay_length_minus1 + 1; |
| |
| ubs(length, nal_initial_cpb_removal_delay[i], 1, i); |
| ubs(length, nal_initial_cpb_removal_offset[i], 1, i); |
| |
| if (hrd->sub_pic_hrd_params_present_flag || |
| current->irap_cpb_params_present_flag) { |
| ubs(length, nal_initial_alt_cpb_removal_delay[i], 1, i); |
| ubs(length, nal_initial_alt_cpb_removal_offset[i], 1, i); |
| } |
| } |
| } |
| if (hrd->vcl_hrd_parameters_present_flag) { |
| for (i = 0; i <= hrd->cpb_cnt_minus1[0]; i++) { |
| length = hrd->initial_cpb_removal_delay_length_minus1 + 1; |
| |
| ubs(length, vcl_initial_cpb_removal_delay[i], 1, i); |
| ubs(length, vcl_initial_cpb_removal_offset[i], 1, i); |
| |
| if (hrd->sub_pic_hrd_params_present_flag || |
| current->irap_cpb_params_present_flag) { |
| ubs(length, vcl_initial_alt_cpb_removal_delay[i], 1, i); |
| ubs(length, vcl_initial_alt_cpb_removal_offset[i], 1, i); |
| } |
| } |
| } |
| |
| #ifdef READ |
| end_pos = get_bits_count(rw); |
| if (cbs_h265_payload_extension_present(rw, sei->payload_size, |
| end_pos - start_pos)) |
| flag(use_alt_cpb_params_flag); |
| else |
| infer(use_alt_cpb_params_flag, 0); |
| #else |
| // If unknown extension data exists, then use_alt_cpb_params_flag is |
| // coded in the bitstream and must be written even if it's 0. |
| if (current->use_alt_cpb_params_flag || sei->extension_present) { |
| flag(use_alt_cpb_params_flag); |
| // Ensure this bit is not the last in the payload by making the |
| // more_data_in_payload() check evaluate to true, so it may not |
| // be mistaken as something else by decoders. |
| sei->extension_present = 1; |
| } |
| #endif |
| |
| return 0; |
| } |
| |
| static int FUNC(sei_pic_timing) |
| (CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSEIPicTiming *current, SEIMessageState *sei) |
| { |
| CodedBitstreamH265Context *h265 = ctx->priv_data; |
| const H265RawSPS *sps; |
| const H265RawHRDParameters *hrd; |
| int err, expected_source_scan_type, i, length; |
| |
| HEADER("Picture Timing"); |
| |
| sps = h265->active_sps; |
| if (!sps) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, |
| "No active SPS for pic_timing.\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| expected_source_scan_type = 2 - |
| 2 * sps->profile_tier_level.general_interlaced_source_flag - |
| sps->profile_tier_level.general_progressive_source_flag; |
| |
| if (sps->vui.frame_field_info_present_flag) { |
| u(4, pic_struct, 0, 12); |
| u(2, source_scan_type, |
| expected_source_scan_type >= 0 ? expected_source_scan_type : 0, |
| expected_source_scan_type >= 0 ? expected_source_scan_type : 2); |
| flag(duplicate_flag); |
| } else { |
| infer(pic_struct, 0); |
| infer(source_scan_type, |
| expected_source_scan_type >= 0 ? expected_source_scan_type : 2); |
| infer(duplicate_flag, 0); |
| } |
| |
| if (sps->vui_parameters_present_flag && |
| sps->vui.vui_hrd_parameters_present_flag) |
| hrd = &sps->vui.hrd_parameters; |
| else |
| hrd = NULL; |
| if (hrd && (hrd->nal_hrd_parameters_present_flag || |
| hrd->vcl_hrd_parameters_present_flag)) { |
| length = hrd->au_cpb_removal_delay_length_minus1 + 1; |
| ub(length, au_cpb_removal_delay_minus1); |
| |
| length = hrd->dpb_output_delay_length_minus1 + 1; |
| ub(length, pic_dpb_output_delay); |
| |
| if (hrd->sub_pic_hrd_params_present_flag) { |
| length = hrd->dpb_output_delay_du_length_minus1 + 1; |
| ub(length, pic_dpb_output_du_delay); |
| } |
| |
| if (hrd->sub_pic_hrd_params_present_flag && |
| hrd->sub_pic_cpb_params_in_pic_timing_sei_flag) { |
| // Each decoding unit must contain at least one slice segment. |
| ue(num_decoding_units_minus1, 0, HEVC_MAX_SLICE_SEGMENTS); |
| flag(du_common_cpb_removal_delay_flag); |
| |
| length = hrd->du_cpb_removal_delay_increment_length_minus1 + 1; |
| if (current->du_common_cpb_removal_delay_flag) |
| ub(length, du_common_cpb_removal_delay_increment_minus1); |
| |
| for (i = 0; i <= current->num_decoding_units_minus1; i++) { |
| ues(num_nalus_in_du_minus1[i], |
| 0, HEVC_MAX_SLICE_SEGMENTS, 1, i); |
| if (!current->du_common_cpb_removal_delay_flag && |
| i < current->num_decoding_units_minus1) |
| ubs(length, du_cpb_removal_delay_increment_minus1[i], 1, i); |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(sei_pan_scan_rect) |
| (CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSEIPanScanRect *current, SEIMessageState *sei) |
| { |
| int err, i; |
| |
| HEADER("Pan-Scan Rectangle"); |
| |
| ue(pan_scan_rect_id, 0, UINT32_MAX - 1); |
| flag(pan_scan_rect_cancel_flag); |
| |
| if (!current->pan_scan_rect_cancel_flag) { |
| ue(pan_scan_cnt_minus1, 0, 2); |
| |
| for (i = 0; i <= current->pan_scan_cnt_minus1; i++) { |
| ses(pan_scan_rect_left_offset[i], INT32_MIN + 1, INT32_MAX, 1, i); |
| ses(pan_scan_rect_right_offset[i], INT32_MIN + 1, INT32_MAX, 1, i); |
| ses(pan_scan_rect_top_offset[i], INT32_MIN + 1, INT32_MAX, 1, i); |
| ses(pan_scan_rect_bottom_offset[i], INT32_MIN + 1, INT32_MAX, 1, i); |
| } |
| |
| flag(pan_scan_rect_persistence_flag); |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(sei_recovery_point) |
| (CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSEIRecoveryPoint *current, SEIMessageState *sei) |
| { |
| int err; |
| |
| HEADER("Recovery Point"); |
| |
| se(recovery_poc_cnt, -32768, 32767); |
| |
| flag(exact_match_flag); |
| flag(broken_link_flag); |
| |
| return 0; |
| } |
| |
| static int FUNC(sei_display_orientation) |
| (CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSEIDisplayOrientation *current, SEIMessageState *sei) |
| { |
| int err; |
| |
| HEADER("Display Orientation"); |
| |
| flag(display_orientation_cancel_flag); |
| if (!current->display_orientation_cancel_flag) { |
| flag(hor_flip); |
| flag(ver_flip); |
| ub(16, anticlockwise_rotation); |
| flag(display_orientation_persistence_flag); |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(sei_active_parameter_sets) |
| (CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSEIActiveParameterSets *current, SEIMessageState *sei) |
| { |
| CodedBitstreamH265Context *h265 = ctx->priv_data; |
| const H265RawVPS *vps; |
| int err, i; |
| |
| HEADER("Active Parameter Sets"); |
| |
| u(4, active_video_parameter_set_id, 0, HEVC_MAX_VPS_COUNT); |
| vps = h265->vps[current->active_video_parameter_set_id]; |
| if (!vps) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "VPS id %d not available for active " |
| "parameter sets.\n", current->active_video_parameter_set_id); |
| return AVERROR_INVALIDDATA; |
| } |
| h265->active_vps = vps; |
| |
| flag(self_contained_cvs_flag); |
| flag(no_parameter_set_update_flag); |
| |
| ue(num_sps_ids_minus1, 0, HEVC_MAX_SPS_COUNT - 1); |
| for (i = 0; i <= current->num_sps_ids_minus1; i++) |
| ues(active_seq_parameter_set_id[i], 0, HEVC_MAX_SPS_COUNT - 1, 1, i); |
| |
| for (i = vps->vps_base_layer_internal_flag; |
| i <= FFMIN(62, vps->vps_max_layers_minus1); i++) { |
| ues(layer_sps_idx[i], 0, current->num_sps_ids_minus1, 1, i); |
| |
| if (i == 0) |
| h265->active_sps = h265->sps[current->active_seq_parameter_set_id[current->layer_sps_idx[0]]]; |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(sei_decoded_picture_hash) |
| (CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSEIDecodedPictureHash *current, SEIMessageState *sei) |
| { |
| CodedBitstreamH265Context *h265 = ctx->priv_data; |
| const H265RawSPS *sps = h265->active_sps; |
| int err, c, i; |
| |
| HEADER("Decoded Picture Hash"); |
| |
| if (!sps) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, |
| "No active SPS for decoded picture hash.\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| u(8, hash_type, 0, 2); |
| |
| for (c = 0; c < (sps->chroma_format_idc == 0 ? 1 : 3); c++) { |
| if (current->hash_type == 0) { |
| for (i = 0; i < 16; i++) |
| us(8, picture_md5[c][i], 0x00, 0xff, 2, c, i); |
| } else if (current->hash_type == 1) { |
| us(16, picture_crc[c], 0x0000, 0xffff, 1, c); |
| } else if (current->hash_type == 2) { |
| us(32, picture_checksum[c], 0x00000000, 0xffffffff, 1, c); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(sei_time_code) |
| (CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSEITimeCode *current, SEIMessageState *sei) |
| { |
| int err, i; |
| |
| HEADER("Time Code"); |
| |
| u(2, num_clock_ts, 1, 3); |
| |
| for (i = 0; i < current->num_clock_ts; i++) { |
| flags(clock_timestamp_flag[i], 1, i); |
| |
| if (current->clock_timestamp_flag[i]) { |
| flags(units_field_based_flag[i], 1, i); |
| us(5, counting_type[i], 0, 6, 1, i); |
| flags(full_timestamp_flag[i], 1, i); |
| flags(discontinuity_flag[i], 1, i); |
| flags(cnt_dropped_flag[i], 1, i); |
| |
| ubs(9, n_frames[i], 1, i); |
| |
| if (current->full_timestamp_flag[i]) { |
| us(6, seconds_value[i], 0, 59, 1, i); |
| us(6, minutes_value[i], 0, 59, 1, i); |
| us(5, hours_value[i], 0, 23, 1, i); |
| } else { |
| flags(seconds_flag[i], 1, i); |
| if (current->seconds_flag[i]) { |
| us(6, seconds_value[i], 0, 59, 1, i); |
| flags(minutes_flag[i], 1, i); |
| if (current->minutes_flag[i]) { |
| us(6, minutes_value[i], 0, 59, 1, i); |
| flags(hours_flag[i], 1, i); |
| if (current->hours_flag[i]) |
| us(5, hours_value[i], 0, 23, 1, i); |
| } |
| } |
| } |
| |
| ubs(5, time_offset_length[i], 1, i); |
| if (current->time_offset_length[i] > 0) |
| ibs(current->time_offset_length[i], time_offset_value[i], 1, i); |
| else |
| infer(time_offset_value[i], 0); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(sei_alpha_channel_info) |
| (CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSEIAlphaChannelInfo *current, SEIMessageState *sei) |
| { |
| int err, length; |
| |
| HEADER("Alpha Channel Information"); |
| |
| flag(alpha_channel_cancel_flag); |
| if (!current->alpha_channel_cancel_flag) { |
| ub(3, alpha_channel_use_idc); |
| ub(3, alpha_channel_bit_depth_minus8); |
| length = current->alpha_channel_bit_depth_minus8 + 9; |
| ub(length, alpha_transparent_value); |
| ub(length, alpha_opaque_value); |
| flag(alpha_channel_incr_flag); |
| flag(alpha_channel_clip_flag); |
| if (current->alpha_channel_clip_flag) |
| flag(alpha_channel_clip_type_flag); |
| } else { |
| infer(alpha_channel_use_idc, 2); |
| infer(alpha_channel_incr_flag, 0); |
| infer(alpha_channel_clip_flag, 0); |
| } |
| |
| return 0; |
| } |
| |
| static int FUNC(sei)(CodedBitstreamContext *ctx, RWContext *rw, |
| H265RawSEI *current, int prefix) |
| { |
| int err; |
| |
| if (prefix) |
| HEADER("Prefix Supplemental Enhancement Information"); |
| else |
| HEADER("Suffix Supplemental Enhancement Information"); |
| |
| CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, |
| prefix ? HEVC_NAL_SEI_PREFIX |
| : HEVC_NAL_SEI_SUFFIX)); |
| |
| CHECK(FUNC_SEI(message_list)(ctx, rw, ¤t->message_list, prefix)); |
| |
| CHECK(FUNC(rbsp_trailing_bits)(ctx, rw)); |
| |
| return 0; |
| } |
