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->aligned_width; vseq->pic_height_in_luma_samples = ctx->aligned_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 = 0; // 8-bit luma. vseq->seq_fields.bits.bit_depth_chroma_minus8 = 0; // 8-bit chroma. // 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] = 1; mseq->vps_max_num_reorder_pics[0] = ctx->b_per_p; 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] = 1; mseq->sps_max_num_reorder_pics[0] = ctx->b_per_p; 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 (ctx->input_width != ctx->aligned_width || ctx->input_height != ctx->aligned_height) { mseq->conformance_window_flag = 1; mseq->conf_win_left_offset = 0; mseq->conf_win_right_offset = (ctx->aligned_width - ctx->input_width) / 2; mseq->conf_win_top_offset = 0; mseq->conf_win_bottom_offset = (ctx->aligned_height - ctx->input_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; }