/* * This file is part of Libav. * * Libav 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. * * Libav 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 Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include "libavutil/avassert.h" #include "libavutil/internal.h" #include "libavutil/opt.h" #include "libavutil/pixfmt.h" #include "avcodec.h" #include "hevc.h" #include "internal.h" #include "put_bits.h" #include "vaapi_encode.h" #include "vaapi_encode_h26x.h" #define MAX_ST_REF_PIC_SETS 32 #define MAX_DPB_PICS 16 #define MAX_LAYERS 1 typedef struct VAAPIEncodeH265STRPS { char inter_ref_pic_set_prediction_flag; unsigned int num_negative_pics; unsigned int num_positive_pics; unsigned int delta_poc_s0_minus1[MAX_DPB_PICS]; char used_by_curr_pic_s0_flag[MAX_DPB_PICS]; unsigned int delta_poc_s1_minus1[MAX_DPB_PICS]; char used_by_curr_pic_s1_flag[MAX_DPB_PICS]; } VAAPIEncodeH265STRPS; // This structure contains all possibly-useful per-sequence syntax elements // which are not already contained in the various VAAPI structures. typedef struct VAAPIEncodeH265MiscSequenceParams { // Parameter set IDs. unsigned int video_parameter_set_id; unsigned int seq_parameter_set_id; // Layering. unsigned int vps_max_layers_minus1; unsigned int vps_max_sub_layers_minus1; char vps_temporal_id_nesting_flag; unsigned int vps_max_layer_id; unsigned int vps_num_layer_sets_minus1; unsigned int sps_max_sub_layers_minus1; char sps_temporal_id_nesting_flag; char layer_id_included_flag[MAX_LAYERS][64]; // Profile/tier/level parameters. char general_profile_compatibility_flag[32]; char general_progressive_source_flag; char general_interlaced_source_flag; char general_non_packed_constraint_flag; char general_frame_only_constraint_flag; char general_inbld_flag; // Decode/display ordering parameters. unsigned int log2_max_pic_order_cnt_lsb_minus4; char vps_sub_layer_ordering_info_present_flag; unsigned int vps_max_dec_pic_buffering_minus1[MAX_LAYERS]; unsigned int vps_max_num_reorder_pics[MAX_LAYERS]; unsigned int vps_max_latency_increase_plus1[MAX_LAYERS]; char sps_sub_layer_ordering_info_present_flag; unsigned int sps_max_dec_pic_buffering_minus1[MAX_LAYERS]; unsigned int sps_max_num_reorder_pics[MAX_LAYERS]; unsigned int sps_max_latency_increase_plus1[MAX_LAYERS]; // Timing information. char vps_timing_info_present_flag; unsigned int vps_num_units_in_tick; unsigned int vps_time_scale; char vps_poc_proportional_to_timing_flag; unsigned int vps_num_ticks_poc_diff_minus1; // Cropping information. char conformance_window_flag; unsigned int conf_win_left_offset; unsigned int conf_win_right_offset; unsigned int conf_win_top_offset; unsigned int conf_win_bottom_offset; // Short-term reference picture sets. unsigned int num_short_term_ref_pic_sets; VAAPIEncodeH265STRPS st_ref_pic_set[MAX_ST_REF_PIC_SETS]; // Long-term reference pictures. char long_term_ref_pics_present_flag; unsigned int num_long_term_ref_pics_sps; struct { unsigned int lt_ref_pic_poc_lsb_sps; char used_by_curr_pic_lt_sps_flag; } lt_ref_pic; // Deblocking filter control. char deblocking_filter_control_present_flag; char deblocking_filter_override_enabled_flag; char pps_deblocking_filter_disabled_flag; int pps_beta_offset_div2; int pps_tc_offset_div2; // Video Usability Information. char vui_parameters_present_flag; char aspect_ratio_info_present_flag; unsigned int aspect_ratio_idc; unsigned int sar_width; unsigned int sar_height; char video_signal_type_present_flag; unsigned int video_format; char video_full_range_flag; char colour_description_present_flag; unsigned int colour_primaries; unsigned int transfer_characteristics; unsigned int matrix_coeffs; // Oddments. char uniform_spacing_flag; char output_flag_present_flag; char cabac_init_present_flag; unsigned int num_extra_slice_header_bits; char lists_modification_present_flag; char pps_slice_chroma_qp_offsets_present_flag; char pps_slice_chroma_offset_list_enabled_flag; } VAAPIEncodeH265MiscSequenceParams; // This structure contains all possibly-useful per-slice syntax elements // which are not already contained in the various VAAPI structures. typedef struct VAAPIEncodeH265MiscSliceParams { // Slice segments. char first_slice_segment_in_pic_flag; unsigned int slice_segment_address; // Short-term reference picture sets. char short_term_ref_pic_set_sps_flag; unsigned int short_term_ref_pic_idx; VAAPIEncodeH265STRPS st_ref_pic_set; // Deblocking filter. char deblocking_filter_override_flag; // Oddments. char slice_reserved_flag[8]; char no_output_of_prior_pics_flag; char pic_output_flag; } VAAPIEncodeH265MiscSliceParams; typedef struct VAAPIEncodeH265Slice { VAAPIEncodeH265MiscSliceParams misc_slice_params; int64_t pic_order_cnt; } VAAPIEncodeH265Slice; typedef struct VAAPIEncodeH265Context { VAAPIEncodeH265MiscSequenceParams misc_sequence_params; unsigned int ctu_width; unsigned int ctu_height; int fixed_qp_idr; int fixed_qp_p; int fixed_qp_b; int64_t last_idr_frame; // Rate control configuration. struct { VAEncMiscParameterBuffer misc; VAEncMiscParameterRateControl rc; } rc_params; struct { VAEncMiscParameterBuffer misc; VAEncMiscParameterHRD hrd; } hrd_params; } VAAPIEncodeH265Context; typedef struct VAAPIEncodeH265Options { int qp; } VAAPIEncodeH265Options; #define vseq_var(name) vseq->name, name #define vseq_field(name) vseq->seq_fields.bits.name, name #define vpic_var(name) vpic->name, name #define vpic_field(name) vpic->pic_fields.bits.name, name #define vslice_var(name) vslice->name, name #define vslice_field(name) vslice->slice_fields.bits.name, name #define mseq_var(name) mseq->name, name #define mslice_var(name) mslice->name, name #define mstrps_var(name) mstrps->name, name static void vaapi_encode_h265_write_nal_unit_header(PutBitContext *pbc, int nal_unit_type) { u(1, 0, forbidden_zero_bit); u(6, nal_unit_type, nal_unit_type); u(6, 0, nuh_layer_id); u(3, 1, nuh_temporal_id_plus1); } static void vaapi_encode_h265_write_rbsp_trailing_bits(PutBitContext *pbc) { u(1, 1, rbsp_stop_one_bit); while (put_bits_count(pbc) & 7) u(1, 0, rbsp_alignment_zero_bit); } static void vaapi_encode_h265_write_profile_tier_level(PutBitContext *pbc, VAAPIEncodeContext *ctx) { VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params; VAAPIEncodeH265Context *priv = ctx->priv_data; VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params; int j; if (1) { u(2, 0, general_profile_space); u(1, vseq_var(general_tier_flag)); u(5, vseq_var(general_profile_idc)); for (j = 0; j < 32; j++) { u(1, mseq_var(general_profile_compatibility_flag[j])); } u(1, mseq_var(general_progressive_source_flag)); u(1, mseq_var(general_interlaced_source_flag)); u(1, mseq_var(general_non_packed_constraint_flag)); u(1, mseq_var(general_frame_only_constraint_flag)); if (0) { // Not main profile. // Lots of extra constraint flags. } else { // put_bits only handles up to 31 bits. u(23, 0, general_reserved_zero_43bits); u(20, 0, general_reserved_zero_43bits); } if (vseq->general_profile_idc >= 1 && vseq->general_profile_idc <= 5) { u(1, mseq_var(general_inbld_flag)); } else { u(1, 0, general_reserved_zero_bit); } } u(8, vseq_var(general_level_idc)); // No sublayers. } static void vaapi_encode_h265_write_vps(PutBitContext *pbc, VAAPIEncodeContext *ctx) { VAAPIEncodeH265Context *priv = ctx->priv_data; VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params; int i, j; vaapi_encode_h265_write_nal_unit_header(pbc, HEVC_NAL_VPS); u(4, mseq->video_parameter_set_id, vps_video_parameter_set_id); u(1, 1, vps_base_layer_internal_flag); u(1, 1, vps_base_layer_available_flag); u(6, mseq_var(vps_max_layers_minus1)); u(3, mseq_var(vps_max_sub_layers_minus1)); u(1, mseq_var(vps_temporal_id_nesting_flag)); u(16, 0xffff, vps_reserved_0xffff_16bits); vaapi_encode_h265_write_profile_tier_level(pbc, ctx); u(1, mseq_var(vps_sub_layer_ordering_info_present_flag)); for (i = (mseq->vps_sub_layer_ordering_info_present_flag ? 0 : mseq->vps_max_sub_layers_minus1); i <= mseq->vps_max_sub_layers_minus1; i++) { ue(mseq_var(vps_max_dec_pic_buffering_minus1[i])); ue(mseq_var(vps_max_num_reorder_pics[i])); ue(mseq_var(vps_max_latency_increase_plus1[i])); } u(6, mseq_var(vps_max_layer_id)); ue(mseq_var(vps_num_layer_sets_minus1)); for (i = 1; i <= mseq->vps_num_layer_sets_minus1; i++) { for (j = 0; j < mseq->vps_max_layer_id; j++) u(1, mseq_var(layer_id_included_flag[i][j])); } u(1, mseq_var(vps_timing_info_present_flag)); if (mseq->vps_timing_info_present_flag) { u(1, 0, put_bits_hack_zero_bit); u(31, mseq_var(vps_num_units_in_tick)); u(1, 0, put_bits_hack_zero_bit); u(31, mseq_var(vps_time_scale)); u(1, mseq_var(vps_poc_proportional_to_timing_flag)); if (mseq->vps_poc_proportional_to_timing_flag) { ue(mseq_var(vps_num_ticks_poc_diff_minus1)); } ue(0, vps_num_hrd_parameters); } u(1, 0, vps_extension_flag); vaapi_encode_h265_write_rbsp_trailing_bits(pbc); } static void vaapi_encode_h265_write_st_ref_pic_set(PutBitContext *pbc, int st_rps_idx, VAAPIEncodeH265STRPS *mstrps) { int i; if (st_rps_idx != 0) u(1, mstrps_var(inter_ref_pic_set_prediction_flag)); if (mstrps->inter_ref_pic_set_prediction_flag) { av_assert0(0 && "inter ref pic set prediction not supported"); } else { ue(mstrps_var(num_negative_pics)); ue(mstrps_var(num_positive_pics)); for (i = 0; i < mstrps->num_negative_pics; i++) { ue(mstrps_var(delta_poc_s0_minus1[i])); u(1, mstrps_var(used_by_curr_pic_s0_flag[i])); } for (i = 0; i < mstrps->num_positive_pics; i++) { ue(mstrps_var(delta_poc_s1_minus1[i])); u(1, mstrps_var(used_by_curr_pic_s1_flag[i])); } } } static void vaapi_encode_h265_write_vui_parameters(PutBitContext *pbc, VAAPIEncodeContext *ctx) { VAAPIEncodeH265Context *priv = ctx->priv_data; VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params; u(1, mseq_var(aspect_ratio_info_present_flag)); if (mseq->aspect_ratio_info_present_flag) { u(8, mseq_var(aspect_ratio_idc)); if (mseq->aspect_ratio_idc == 255) { u(16, mseq_var(sar_width)); u(16, mseq_var(sar_height)); } } u(1, 0, overscan_info_present_flag); u(1, mseq_var(video_signal_type_present_flag)); if (mseq->video_signal_type_present_flag) { u(3, mseq_var(video_format)); u(1, mseq_var(video_full_range_flag)); u(1, mseq_var(colour_description_present_flag)); if (mseq->colour_description_present_flag) { u(8, mseq_var(colour_primaries)); u(8, mseq_var(transfer_characteristics)); u(8, mseq_var(matrix_coeffs)); } } u(1, 0, chroma_loc_info_present_flag); u(1, 0, neutral_chroma_indication_flag); u(1, 0, field_seq_flag); u(1, 0, frame_field_info_present_flag); u(1, 0, default_display_window_flag); u(1, 0, vui_timing_info_present_flag); u(1, 0, bitstream_restriction_flag_flag); } static void vaapi_encode_h265_write_sps(PutBitContext *pbc, VAAPIEncodeContext *ctx) { VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params; VAAPIEncodeH265Context *priv = ctx->priv_data; VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params; int i; vaapi_encode_h265_write_nal_unit_header(pbc, HEVC_NAL_SPS); u(4, mseq->video_parameter_set_id, sps_video_parameter_set_id); u(3, mseq_var(sps_max_sub_layers_minus1)); u(1, mseq_var(sps_temporal_id_nesting_flag)); vaapi_encode_h265_write_profile_tier_level(pbc, ctx); ue(mseq->seq_parameter_set_id, sps_seq_parameter_set_id); ue(vseq_field(chroma_format_idc)); if (vseq->seq_fields.bits.chroma_format_idc == 3) u(1, 0, separate_colour_plane_flag); ue(vseq_var(pic_width_in_luma_samples)); ue(vseq_var(pic_height_in_luma_samples)); u(1, mseq_var(conformance_window_flag)); if (mseq->conformance_window_flag) { ue(mseq_var(conf_win_left_offset)); ue(mseq_var(conf_win_right_offset)); ue(mseq_var(conf_win_top_offset)); ue(mseq_var(conf_win_bottom_offset)); } ue(vseq_field(bit_depth_luma_minus8)); ue(vseq_field(bit_depth_chroma_minus8)); ue(mseq_var(log2_max_pic_order_cnt_lsb_minus4)); u(1, mseq_var(sps_sub_layer_ordering_info_present_flag)); for (i = (mseq->sps_sub_layer_ordering_info_present_flag ? 0 : mseq->sps_max_sub_layers_minus1); i <= mseq->sps_max_sub_layers_minus1; i++) { ue(mseq_var(sps_max_dec_pic_buffering_minus1[i])); ue(mseq_var(sps_max_num_reorder_pics[i])); ue(mseq_var(sps_max_latency_increase_plus1[i])); } ue(vseq_var(log2_min_luma_coding_block_size_minus3)); ue(vseq_var(log2_diff_max_min_luma_coding_block_size)); ue(vseq_var(log2_min_transform_block_size_minus2)); ue(vseq_var(log2_diff_max_min_transform_block_size)); ue(vseq_var(max_transform_hierarchy_depth_inter)); ue(vseq_var(max_transform_hierarchy_depth_intra)); u(1, vseq_field(scaling_list_enabled_flag)); if (vseq->seq_fields.bits.scaling_list_enabled_flag) { u(1, 0, sps_scaling_list_data_present_flag); } u(1, vseq_field(amp_enabled_flag)); u(1, vseq_field(sample_adaptive_offset_enabled_flag)); u(1, vseq_field(pcm_enabled_flag)); if (vseq->seq_fields.bits.pcm_enabled_flag) { u(4, vseq_var(pcm_sample_bit_depth_luma_minus1)); u(4, vseq_var(pcm_sample_bit_depth_chroma_minus1)); ue(vseq_var(log2_min_pcm_luma_coding_block_size_minus3)); ue(vseq->log2_max_pcm_luma_coding_block_size_minus3 - vseq->log2_min_pcm_luma_coding_block_size_minus3, log2_diff_max_min_pcm_luma_coding_block_size); u(1, vseq_field(pcm_loop_filter_disabled_flag)); } ue(mseq_var(num_short_term_ref_pic_sets)); for (i = 0; i < mseq->num_short_term_ref_pic_sets; i++) vaapi_encode_h265_write_st_ref_pic_set(pbc, i, &mseq->st_ref_pic_set[i]); u(1, mseq_var(long_term_ref_pics_present_flag)); if (mseq->long_term_ref_pics_present_flag) { ue(0, num_long_term_ref_pics_sps); } u(1, vseq_field(sps_temporal_mvp_enabled_flag)); u(1, vseq_field(strong_intra_smoothing_enabled_flag)); u(1, mseq_var(vui_parameters_present_flag)); if (mseq->vui_parameters_present_flag) { vaapi_encode_h265_write_vui_parameters(pbc, ctx); } u(1, 0, sps_extension_present_flag); vaapi_encode_h265_write_rbsp_trailing_bits(pbc); } static void vaapi_encode_h265_write_pps(PutBitContext *pbc, VAAPIEncodeContext *ctx) { VAEncPictureParameterBufferHEVC *vpic = ctx->codec_picture_params; VAAPIEncodeH265Context *priv = ctx->priv_data; VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params; int i; vaapi_encode_h265_write_nal_unit_header(pbc, HEVC_NAL_PPS); ue(vpic->slice_pic_parameter_set_id, pps_pic_parameter_set_id); ue(mseq->seq_parameter_set_id, pps_seq_parameter_set_id); u(1, vpic_field(dependent_slice_segments_enabled_flag)); u(1, mseq_var(output_flag_present_flag)); u(3, mseq_var(num_extra_slice_header_bits)); u(1, vpic_field(sign_data_hiding_enabled_flag)); u(1, mseq_var(cabac_init_present_flag)); ue(vpic_var(num_ref_idx_l0_default_active_minus1)); ue(vpic_var(num_ref_idx_l1_default_active_minus1)); se(vpic->pic_init_qp - 26, init_qp_minus26); u(1, vpic_field(constrained_intra_pred_flag)); u(1, vpic_field(transform_skip_enabled_flag)); u(1, vpic_field(cu_qp_delta_enabled_flag)); if (vpic->pic_fields.bits.cu_qp_delta_enabled_flag) ue(vpic_var(diff_cu_qp_delta_depth)); se(vpic_var(pps_cb_qp_offset)); se(vpic_var(pps_cr_qp_offset)); u(1, mseq_var(pps_slice_chroma_qp_offsets_present_flag)); u(1, vpic_field(weighted_pred_flag)); u(1, vpic_field(weighted_bipred_flag)); u(1, vpic_field(transquant_bypass_enabled_flag)); u(1, vpic_field(tiles_enabled_flag)); u(1, vpic_field(entropy_coding_sync_enabled_flag)); if (vpic->pic_fields.bits.tiles_enabled_flag) { ue(vpic_var(num_tile_columns_minus1)); ue(vpic_var(num_tile_rows_minus1)); u(1, mseq_var(uniform_spacing_flag)); if (!mseq->uniform_spacing_flag) { for (i = 0; i < vpic->num_tile_columns_minus1; i++) ue(vpic_var(column_width_minus1[i])); for (i = 0; i < vpic->num_tile_rows_minus1; i++) ue(vpic_var(row_height_minus1[i])); } u(1, vpic_field(loop_filter_across_tiles_enabled_flag)); } u(1, vpic_field(pps_loop_filter_across_slices_enabled_flag)); u(1, mseq_var(deblocking_filter_control_present_flag)); if (mseq->deblocking_filter_control_present_flag) { u(1, mseq_var(deblocking_filter_override_enabled_flag)); u(1, mseq_var(pps_deblocking_filter_disabled_flag)); if (!mseq->pps_deblocking_filter_disabled_flag) { se(mseq_var(pps_beta_offset_div2)); se(mseq_var(pps_tc_offset_div2)); } } u(1, 0, pps_scaling_list_data_present_flag); // No scaling list data. u(1, mseq_var(lists_modification_present_flag)); ue(vpic_var(log2_parallel_merge_level_minus2)); u(1, 0, slice_segment_header_extension_present_flag); u(1, 0, pps_extension_present_flag); vaapi_encode_h265_write_rbsp_trailing_bits(pbc); } static void vaapi_encode_h265_write_slice_header2(PutBitContext *pbc, VAAPIEncodeContext *ctx, VAAPIEncodePicture *pic, VAAPIEncodeSlice *slice) { VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params; VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params; VAEncSliceParameterBufferHEVC *vslice = slice->codec_slice_params; VAAPIEncodeH265Context *priv = ctx->priv_data; VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params; VAAPIEncodeH265Slice *pslice = slice->priv_data; VAAPIEncodeH265MiscSliceParams *mslice = &pslice->misc_slice_params; int i; vaapi_encode_h265_write_nal_unit_header(pbc, vpic->nal_unit_type); u(1, mslice_var(first_slice_segment_in_pic_flag)); if (vpic->nal_unit_type >= HEVC_NAL_BLA_W_LP && vpic->nal_unit_type <= 23) u(1, mslice_var(no_output_of_prior_pics_flag)); ue(vslice_var(slice_pic_parameter_set_id)); if (!mslice->first_slice_segment_in_pic_flag) { if (vpic->pic_fields.bits.dependent_slice_segments_enabled_flag) u(1, vslice_field(dependent_slice_segment_flag)); u(av_log2((priv->ctu_width * priv->ctu_height) - 1) + 1, mslice_var(slice_segment_address)); } if (!vslice->slice_fields.bits.dependent_slice_segment_flag) { for (i = 0; i < mseq->num_extra_slice_header_bits; i++) u(1, mslice_var(slice_reserved_flag[i])); ue(vslice_var(slice_type)); if (mseq->output_flag_present_flag) u(1, 1, pic_output_flag); if (vseq->seq_fields.bits.separate_colour_plane_flag) u(2, vslice_field(colour_plane_id)); if (vpic->nal_unit_type != HEVC_NAL_IDR_W_RADL && vpic->nal_unit_type != HEVC_NAL_IDR_N_LP) { u(4 + mseq->log2_max_pic_order_cnt_lsb_minus4, (pslice->pic_order_cnt & ((1 << (mseq->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1)), slice_pic_order_cnt_lsb); u(1, mslice_var(short_term_ref_pic_set_sps_flag)); if (!mslice->short_term_ref_pic_set_sps_flag) { vaapi_encode_h265_write_st_ref_pic_set(pbc, mseq->num_short_term_ref_pic_sets, &mslice->st_ref_pic_set); } else if (mseq->num_short_term_ref_pic_sets > 1) { u(av_log2(mseq->num_short_term_ref_pic_sets - 1) + 1, mslice_var(short_term_ref_pic_idx)); } if (mseq->long_term_ref_pics_present_flag) { av_assert0(0); } } if (vseq->seq_fields.bits.sps_temporal_mvp_enabled_flag) { u(1, vslice_field(slice_temporal_mvp_enabled_flag)); } if (vseq->seq_fields.bits.sample_adaptive_offset_enabled_flag) { u(1, vslice_field(slice_sao_luma_flag)); if (!vseq->seq_fields.bits.separate_colour_plane_flag && vseq->seq_fields.bits.chroma_format_idc != 0) { u(1, vslice_field(slice_sao_chroma_flag)); } } if (vslice->slice_type == HEVC_SLICE_P || vslice->slice_type == HEVC_SLICE_B) { u(1, vslice_field(num_ref_idx_active_override_flag)); if (vslice->slice_fields.bits.num_ref_idx_active_override_flag) { ue(vslice_var(num_ref_idx_l0_active_minus1)); if (vslice->slice_type == HEVC_SLICE_B) { ue(vslice_var(num_ref_idx_l1_active_minus1)); } } if (mseq->lists_modification_present_flag) { av_assert0(0); // ref_pic_lists_modification() } if (vslice->slice_type == HEVC_SLICE_B) { u(1, vslice_field(mvd_l1_zero_flag)); } if (mseq->cabac_init_present_flag) { u(1, vslice_field(cabac_init_flag)); } if (vslice->slice_fields.bits.slice_temporal_mvp_enabled_flag) { if (vslice->slice_type == HEVC_SLICE_B) u(1, vslice_field(collocated_from_l0_flag)); ue(vpic->collocated_ref_pic_index, collocated_ref_idx); } if ((vpic->pic_fields.bits.weighted_pred_flag && vslice->slice_type == HEVC_SLICE_P) || (vpic->pic_fields.bits.weighted_bipred_flag && vslice->slice_type == HEVC_SLICE_B)) { av_assert0(0); // pred_weight_table() } ue(5 - vslice->max_num_merge_cand, five_minus_max_num_merge_cand); } se(vslice_var(slice_qp_delta)); if (mseq->pps_slice_chroma_qp_offsets_present_flag) { se(vslice_var(slice_cb_qp_offset)); se(vslice_var(slice_cr_qp_offset)); } if (mseq->pps_slice_chroma_offset_list_enabled_flag) { u(1, 0, cu_chroma_qp_offset_enabled_flag); } if (mseq->deblocking_filter_override_enabled_flag) { u(1, mslice_var(deblocking_filter_override_flag)); } if (mslice->deblocking_filter_override_flag) { u(1, vslice_field(slice_deblocking_filter_disabled_flag)); if (!vslice->slice_fields.bits.slice_deblocking_filter_disabled_flag) { se(vslice_var(slice_beta_offset_div2)); se(vslice_var(slice_tc_offset_div2)); } } if (vpic->pic_fields.bits.pps_loop_filter_across_slices_enabled_flag && (vslice->slice_fields.bits.slice_sao_luma_flag || vslice->slice_fields.bits.slice_sao_chroma_flag || vslice->slice_fields.bits.slice_deblocking_filter_disabled_flag)) { u(1, vslice_field(slice_loop_filter_across_slices_enabled_flag)); } if (vpic->pic_fields.bits.tiles_enabled_flag || vpic->pic_fields.bits.entropy_coding_sync_enabled_flag) { // num_entry_point_offsets } if (0) { // slice_segment_header_extension_length } } u(1, 1, alignment_bit_equal_to_one); while (put_bits_count(pbc) & 7) u(1, 0, alignment_bit_equal_to_zero); } static int vaapi_encode_h265_write_sequence_header(AVCodecContext *avctx, char *data, size_t *data_len) { VAAPIEncodeContext *ctx = avctx->priv_data; PutBitContext pbc; char tmp[256]; int err; size_t nal_len, bit_len, bit_pos, next_len; bit_len = *data_len; bit_pos = 0; init_put_bits(&pbc, tmp, sizeof(tmp)); vaapi_encode_h265_write_vps(&pbc, ctx); nal_len = put_bits_count(&pbc); flush_put_bits(&pbc); next_len = bit_len - bit_pos; err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8, &next_len, tmp, nal_len); if (err < 0) return err; bit_pos += next_len; init_put_bits(&pbc, tmp, sizeof(tmp)); vaapi_encode_h265_write_sps(&pbc, ctx); nal_len = put_bits_count(&pbc); flush_put_bits(&pbc); next_len = bit_len - bit_pos; err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8, &next_len, tmp, nal_len); if (err < 0) return err; bit_pos += next_len; init_put_bits(&pbc, tmp, sizeof(tmp)); vaapi_encode_h265_write_pps(&pbc, ctx); nal_len = put_bits_count(&pbc); flush_put_bits(&pbc); next_len = bit_len - bit_pos; err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8, &next_len, tmp, nal_len); if (err < 0) return err; bit_pos += next_len; *data_len = bit_pos; return 0; } static int vaapi_encode_h265_write_slice_header(AVCodecContext *avctx, VAAPIEncodePicture *pic, VAAPIEncodeSlice *slice, char *data, size_t *data_len) { VAAPIEncodeContext *ctx = avctx->priv_data; PutBitContext pbc; char tmp[256]; size_t header_len; init_put_bits(&pbc, tmp, sizeof(tmp)); vaapi_encode_h265_write_slice_header2(&pbc, ctx, pic, slice); header_len = put_bits_count(&pbc); flush_put_bits(&pbc); return ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data, data_len, tmp, header_len); } static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx) { VAAPIEncodeContext *ctx = avctx->priv_data; VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params; VAEncPictureParameterBufferHEVC *vpic = ctx->codec_picture_params; VAAPIEncodeH265Context *priv = ctx->priv_data; VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params; int i; { // general_profile_space == 0. vseq->general_profile_idc = 1; // Main profile (ctx->codec_profile?) vseq->general_tier_flag = 0; vseq->general_level_idc = avctx->level * 3; vseq->intra_period = 0; vseq->intra_idr_period = 0; vseq->ip_period = 0; vseq->pic_width_in_luma_samples = ctx->surface_width; vseq->pic_height_in_luma_samples = ctx->surface_height; vseq->seq_fields.bits.chroma_format_idc = 1; // 4:2:0. vseq->seq_fields.bits.separate_colour_plane_flag = 0; vseq->seq_fields.bits.bit_depth_luma_minus8 = avctx->profile == FF_PROFILE_HEVC_MAIN_10 ? 2 : 0; vseq->seq_fields.bits.bit_depth_chroma_minus8 = avctx->profile == FF_PROFILE_HEVC_MAIN_10 ? 2 : 0; // Other misc flags all zero. // These have to come from the capabilities of the encoder. We have // no way to query it, so just hardcode ones which worked for me... // CTB size from 8x8 to 32x32. vseq->log2_min_luma_coding_block_size_minus3 = 0; vseq->log2_diff_max_min_luma_coding_block_size = 2; // Transform size from 4x4 to 32x32. vseq->log2_min_transform_block_size_minus2 = 0; vseq->log2_diff_max_min_transform_block_size = 3; // Full transform hierarchy allowed (2-5). vseq->max_transform_hierarchy_depth_inter = 3; vseq->max_transform_hierarchy_depth_intra = 3; vseq->vui_parameters_present_flag = 0; vseq->bits_per_second = avctx->bit_rate; if (avctx->framerate.num > 0 && avctx->framerate.den > 0) { vseq->vui_num_units_in_tick = avctx->framerate.num; vseq->vui_time_scale = avctx->framerate.den; } else { vseq->vui_num_units_in_tick = avctx->time_base.num; vseq->vui_time_scale = avctx->time_base.den; } vseq->intra_period = ctx->p_per_i * (ctx->b_per_p + 1); vseq->intra_idr_period = vseq->intra_period; vseq->ip_period = ctx->b_per_p + 1; } { vpic->decoded_curr_pic.picture_id = VA_INVALID_ID; vpic->decoded_curr_pic.flags = VA_PICTURE_HEVC_INVALID; for (i = 0; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) { vpic->reference_frames[i].picture_id = VA_INVALID_ID; vpic->reference_frames[i].flags = VA_PICTURE_HEVC_INVALID; } vpic->collocated_ref_pic_index = 0xff; vpic->last_picture = 0; vpic->pic_init_qp = priv->fixed_qp_idr; vpic->diff_cu_qp_delta_depth = 0; vpic->pps_cb_qp_offset = 0; vpic->pps_cr_qp_offset = 0; // tiles_enabled_flag == 0, so ignore num_tile_(rows|columns)_minus1. vpic->log2_parallel_merge_level_minus2 = 0; // No limit on size. vpic->ctu_max_bitsize_allowed = 0; vpic->num_ref_idx_l0_default_active_minus1 = 0; vpic->num_ref_idx_l1_default_active_minus1 = 0; vpic->slice_pic_parameter_set_id = 0; vpic->pic_fields.bits.screen_content_flag = 0; vpic->pic_fields.bits.enable_gpu_weighted_prediction = 0; // Per-CU QP changes are required for non-constant-QP modes. vpic->pic_fields.bits.cu_qp_delta_enabled_flag = ctx->va_rc_mode != VA_RC_CQP; } { mseq->video_parameter_set_id = 5; mseq->seq_parameter_set_id = 5; mseq->vps_max_layers_minus1 = 0; mseq->vps_max_sub_layers_minus1 = 0; mseq->vps_temporal_id_nesting_flag = 1; mseq->sps_max_sub_layers_minus1 = 0; mseq->sps_temporal_id_nesting_flag = 1; for (i = 0; i < 32; i++) { mseq->general_profile_compatibility_flag[i] = (i == vseq->general_profile_idc); } mseq->general_progressive_source_flag = 1; mseq->general_interlaced_source_flag = 0; mseq->general_non_packed_constraint_flag = 0; mseq->general_frame_only_constraint_flag = 1; mseq->general_inbld_flag = 0; mseq->log2_max_pic_order_cnt_lsb_minus4 = 8; mseq->vps_sub_layer_ordering_info_present_flag = 0; mseq->vps_max_dec_pic_buffering_minus1[0] = (avctx->max_b_frames > 0) + 1; mseq->vps_max_num_reorder_pics[0] = (avctx->max_b_frames > 0); mseq->vps_max_latency_increase_plus1[0] = 0; mseq->sps_sub_layer_ordering_info_present_flag = 0; mseq->sps_max_dec_pic_buffering_minus1[0] = (avctx->max_b_frames > 0) + 1; mseq->sps_max_num_reorder_pics[0] = (avctx->max_b_frames > 0); mseq->sps_max_latency_increase_plus1[0] = 0; mseq->vps_timing_info_present_flag = 1; mseq->vps_num_units_in_tick = avctx->time_base.num; mseq->vps_time_scale = avctx->time_base.den; mseq->vps_poc_proportional_to_timing_flag = 1; mseq->vps_num_ticks_poc_diff_minus1 = 0; if (avctx->width != ctx->surface_width || avctx->height != ctx->surface_height) { mseq->conformance_window_flag = 1; mseq->conf_win_left_offset = 0; mseq->conf_win_right_offset = (ctx->surface_width - avctx->width) / 2; mseq->conf_win_top_offset = 0; mseq->conf_win_bottom_offset = (ctx->surface_height - avctx->height) / 2; } else { mseq->conformance_window_flag = 0; } mseq->num_short_term_ref_pic_sets = 0; // STRPSs should ideally be here rather than repeated in each slice. mseq->vui_parameters_present_flag = 1; if (avctx->sample_aspect_ratio.num != 0) { mseq->aspect_ratio_info_present_flag = 1; if (avctx->sample_aspect_ratio.num == avctx->sample_aspect_ratio.den) { mseq->aspect_ratio_idc = 1; } else { mseq->aspect_ratio_idc = 255; // Extended SAR. mseq->sar_width = avctx->sample_aspect_ratio.num; mseq->sar_height = avctx->sample_aspect_ratio.den; } } if (1) { // Should this be conditional on some of these being set? mseq->video_signal_type_present_flag = 1; mseq->video_format = 5; // Unspecified. mseq->video_full_range_flag = 0; mseq->colour_description_present_flag = 1; mseq->colour_primaries = avctx->color_primaries; mseq->transfer_characteristics = avctx->color_trc; mseq->matrix_coeffs = avctx->colorspace; } } return 0; } static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx, VAAPIEncodePicture *pic) { VAAPIEncodeContext *ctx = avctx->priv_data; VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params; VAAPIEncodeH265Context *priv = ctx->priv_data; int i; if (pic->type == PICTURE_TYPE_IDR) { av_assert0(pic->display_order == pic->encode_order); priv->last_idr_frame = pic->display_order; } else { av_assert0(pic->encode_order > priv->last_idr_frame); // Display order need not be if we have RA[SD]L pictures, though. } vpic->decoded_curr_pic.picture_id = pic->recon_surface; vpic->decoded_curr_pic.pic_order_cnt = pic->display_order - priv->last_idr_frame; vpic->decoded_curr_pic.flags = 0; for (i = 0; i < pic->nb_refs; i++) { VAAPIEncodePicture *ref = pic->refs[i]; av_assert0(ref); vpic->reference_frames[i].picture_id = ref->recon_surface; vpic->reference_frames[i].pic_order_cnt = ref->display_order - priv->last_idr_frame; vpic->reference_frames[i].flags = (ref->display_order < pic->display_order ? VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) | (ref->display_order > pic->display_order ? VA_PICTURE_HEVC_RPS_ST_CURR_AFTER : 0); } for (; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) { vpic->reference_frames[i].picture_id = VA_INVALID_ID; vpic->reference_frames[i].flags = VA_PICTURE_HEVC_INVALID; } vpic->coded_buf = pic->output_buffer; switch (pic->type) { case PICTURE_TYPE_IDR: vpic->nal_unit_type = HEVC_NAL_IDR_W_RADL; vpic->pic_fields.bits.idr_pic_flag = 1; vpic->pic_fields.bits.coding_type = 1; vpic->pic_fields.bits.reference_pic_flag = 1; break; case PICTURE_TYPE_I: vpic->nal_unit_type = HEVC_NAL_TRAIL_R; vpic->pic_fields.bits.idr_pic_flag = 0; vpic->pic_fields.bits.coding_type = 1; vpic->pic_fields.bits.reference_pic_flag = 1; break; case PICTURE_TYPE_P: vpic->nal_unit_type = HEVC_NAL_TRAIL_R; vpic->pic_fields.bits.idr_pic_flag = 0; vpic->pic_fields.bits.coding_type = 2; vpic->pic_fields.bits.reference_pic_flag = 1; break; case PICTURE_TYPE_B: vpic->nal_unit_type = HEVC_NAL_TRAIL_R; vpic->pic_fields.bits.idr_pic_flag = 0; vpic->pic_fields.bits.coding_type = 3; vpic->pic_fields.bits.reference_pic_flag = 0; break; default: av_assert0(0 && "invalid picture type"); } pic->nb_slices = 1; return 0; } static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx, VAAPIEncodePicture *pic, VAAPIEncodeSlice *slice) { VAAPIEncodeContext *ctx = avctx->priv_data; VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params; VAEncSliceParameterBufferHEVC *vslice = slice->codec_slice_params; VAAPIEncodeH265Context *priv = ctx->priv_data; VAAPIEncodeH265Slice *pslice; VAAPIEncodeH265MiscSliceParams *mslice; int i; slice->priv_data = av_mallocz(sizeof(*pslice)); if (!slice->priv_data) return AVERROR(ENOMEM); pslice = slice->priv_data; mslice = &pslice->misc_slice_params; // Currently we only support one slice per frame. vslice->slice_segment_address = 0; vslice->num_ctu_in_slice = priv->ctu_width * priv->ctu_height; switch (pic->type) { case PICTURE_TYPE_IDR: case PICTURE_TYPE_I: vslice->slice_type = HEVC_SLICE_I; break; case PICTURE_TYPE_P: vslice->slice_type = HEVC_SLICE_P; break; case PICTURE_TYPE_B: vslice->slice_type = HEVC_SLICE_B; break; default: av_assert0(0 && "invalid picture type"); } vslice->slice_pic_parameter_set_id = vpic->slice_pic_parameter_set_id; pslice->pic_order_cnt = pic->display_order - priv->last_idr_frame; for (i = 0; i < FF_ARRAY_ELEMS(vslice->ref_pic_list0); i++) { vslice->ref_pic_list0[i].picture_id = VA_INVALID_ID; vslice->ref_pic_list0[i].flags = VA_PICTURE_HEVC_INVALID; vslice->ref_pic_list1[i].picture_id = VA_INVALID_ID; vslice->ref_pic_list1[i].flags = VA_PICTURE_HEVC_INVALID; } av_assert0(pic->nb_refs <= 2); if (pic->nb_refs >= 1) { // Backward reference for P- or B-frame. av_assert0(pic->type == PICTURE_TYPE_P || pic->type == PICTURE_TYPE_B); vslice->num_ref_idx_l0_active_minus1 = 0; vslice->ref_pic_list0[0] = vpic->reference_frames[0]; } if (pic->nb_refs >= 2) { // Forward reference for B-frame. av_assert0(pic->type == PICTURE_TYPE_B); vslice->num_ref_idx_l1_active_minus1 = 0; vslice->ref_pic_list1[0] = vpic->reference_frames[1]; } vslice->max_num_merge_cand = 5; if (pic->type == PICTURE_TYPE_B) vslice->slice_qp_delta = priv->fixed_qp_b - vpic->pic_init_qp; else if (pic->type == PICTURE_TYPE_P) vslice->slice_qp_delta = priv->fixed_qp_p - vpic->pic_init_qp; else vslice->slice_qp_delta = priv->fixed_qp_idr - vpic->pic_init_qp; vslice->slice_fields.bits.last_slice_of_pic_flag = 1; mslice->first_slice_segment_in_pic_flag = 1; if (pic->type == PICTURE_TYPE_IDR) { // No reference pictures. } else if (0) { mslice->short_term_ref_pic_set_sps_flag = 1; mslice->short_term_ref_pic_idx = 0; } else { VAAPIEncodePicture *st; int used; mslice->short_term_ref_pic_set_sps_flag = 0; mslice->st_ref_pic_set.inter_ref_pic_set_prediction_flag = 0; for (st = ctx->pic_start; st; st = st->next) { if (st->encode_order >= pic->encode_order) { // Not yet in DPB. continue; } used = 0; for (i = 0; i < pic->nb_refs; i++) { if (pic->refs[i] == st) used = 1; } if (!used) { // Currently true, but need not be. continue; } // This only works for one instance of each (delta_poc_sN_minus1 // is relative to the previous frame in the list, not relative to // the current frame directly). if (st->display_order < pic->display_order) { i = mslice->st_ref_pic_set.num_negative_pics; mslice->st_ref_pic_set.delta_poc_s0_minus1[i] = pic->display_order - st->display_order - 1; mslice->st_ref_pic_set.used_by_curr_pic_s0_flag[i] = used; ++mslice->st_ref_pic_set.num_negative_pics; } else { i = mslice->st_ref_pic_set.num_positive_pics; mslice->st_ref_pic_set.delta_poc_s1_minus1[i] = st->display_order - pic->display_order - 1; mslice->st_ref_pic_set.used_by_curr_pic_s1_flag[i] = used; ++mslice->st_ref_pic_set.num_positive_pics; } } } return 0; } static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx) { VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH265Context *priv = ctx->priv_data; VAAPIEncodeH265Options *opt = ctx->codec_options; priv->ctu_width = FFALIGN(ctx->surface_width, 32) / 32; priv->ctu_height = FFALIGN(ctx->surface_height, 32) / 32; av_log(avctx, AV_LOG_VERBOSE, "Input %ux%u -> Surface %ux%u -> CTU %ux%u.\n", avctx->width, avctx->height, ctx->surface_width, ctx->surface_height, priv->ctu_width, priv->ctu_height); if (ctx->va_rc_mode == VA_RC_CQP) { priv->fixed_qp_p = opt->qp; if (avctx->i_quant_factor > 0.0) priv->fixed_qp_idr = (int)((priv->fixed_qp_p * avctx->i_quant_factor + avctx->i_quant_offset) + 0.5); else priv->fixed_qp_idr = priv->fixed_qp_p; if (avctx->b_quant_factor > 0.0) priv->fixed_qp_b = (int)((priv->fixed_qp_p * avctx->b_quant_factor + avctx->b_quant_offset) + 0.5); else priv->fixed_qp_b = priv->fixed_qp_p; av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = " "%d / %d / %d for IDR- / P- / B-frames.\n", priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b); } else if (ctx->va_rc_mode == VA_RC_CBR) { // These still need to be set for pic_init_qp/slice_qp_delta. priv->fixed_qp_idr = 30; priv->fixed_qp_p = 30; priv->fixed_qp_b = 30; av_log(avctx, AV_LOG_DEBUG, "Using constant-bitrate = %d bps.\n", avctx->bit_rate); } else { av_assert0(0 && "Invalid RC mode."); } return 0; } static const VAAPIEncodeType vaapi_encode_type_h265 = { .priv_data_size = sizeof(VAAPIEncodeH265Context), .configure = &vaapi_encode_h265_configure, .sequence_params_size = sizeof(VAEncSequenceParameterBufferHEVC), .init_sequence_params = &vaapi_encode_h265_init_sequence_params, .picture_params_size = sizeof(VAEncPictureParameterBufferHEVC), .init_picture_params = &vaapi_encode_h265_init_picture_params, .slice_params_size = sizeof(VAEncSliceParameterBufferHEVC), .init_slice_params = &vaapi_encode_h265_init_slice_params, .sequence_header_type = VAEncPackedHeaderSequence, .write_sequence_header = &vaapi_encode_h265_write_sequence_header, .slice_header_type = VAEncPackedHeaderHEVC_Slice, .write_slice_header = &vaapi_encode_h265_write_slice_header, }; static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx) { VAAPIEncodeContext *ctx = avctx->priv_data; ctx->codec = &vaapi_encode_type_h265; switch (avctx->profile) { case FF_PROFILE_HEVC_MAIN: case FF_PROFILE_UNKNOWN: ctx->va_profile = VAProfileHEVCMain; ctx->va_rt_format = VA_RT_FORMAT_YUV420; break; case FF_PROFILE_HEVC_MAIN_10: ctx->va_profile = VAProfileHEVCMain10; ctx->va_rt_format = VA_RT_FORMAT_YUV420_10BPP; break; default: av_log(avctx, AV_LOG_ERROR, "Unknown H.265 profile %d.\n", avctx->profile); return AVERROR(EINVAL); } ctx->va_entrypoint = VAEntrypointEncSlice; if (avctx->bit_rate > 0) ctx->va_rc_mode = VA_RC_CBR; else ctx->va_rc_mode = VA_RC_CQP; ctx->va_packed_headers = VA_ENC_PACKED_HEADER_SEQUENCE | // VPS, SPS and PPS. VA_ENC_PACKED_HEADER_SLICE; // Slice headers. ctx->surface_width = FFALIGN(avctx->width, 16); ctx->surface_height = FFALIGN(avctx->height, 16); return ff_vaapi_encode_init(avctx); } #define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \ offsetof(VAAPIEncodeH265Options, x)) #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM) static const AVOption vaapi_encode_h265_options[] = { { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)", OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 25 }, 0, 52, FLAGS }, { NULL }, }; static const AVCodecDefault vaapi_encode_h265_defaults[] = { { "profile", "1" }, { "level", "51" }, { "b", "0" }, { "bf", "2" }, { "g", "120" }, { "i_qfactor", "1.0" }, { "i_qoffset", "0.0" }, { "b_qfactor", "1.2" }, { "b_qoffset", "0.0" }, { NULL }, }; static const AVClass vaapi_encode_h265_class = { .class_name = "h265_vaapi", .item_name = av_default_item_name, .option = vaapi_encode_h265_options, .version = LIBAVUTIL_VERSION_INT, }; AVCodec ff_hevc_vaapi_encoder = { .name = "hevc_vaapi", .long_name = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"), .type = AVMEDIA_TYPE_VIDEO, .id = AV_CODEC_ID_HEVC, .priv_data_size = (sizeof(VAAPIEncodeContext) + sizeof(VAAPIEncodeH265Options)), .init = &vaapi_encode_h265_init, .encode2 = &ff_vaapi_encode2, .close = &ff_vaapi_encode_close, .priv_class = &vaapi_encode_h265_class, .capabilities = AV_CODEC_CAP_DELAY, .defaults = vaapi_encode_h265_defaults, .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_VAAPI, AV_PIX_FMT_NONE, }, };