/* * 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 */ #include "hw_base_encode_h265.h" #include "h2645data.h" #include "h265_profile_level.h" #include "libavutil/pixdesc.h" int ff_hw_base_encode_init_params_h265(FFHWBaseEncodeContext *base_ctx, AVCodecContext *avctx, FFHWBaseEncodeH265 *common, FFHWBaseEncodeH265Opts *opts) { H265RawVPS *vps = &common->raw_vps; H265RawSPS *sps = &common->raw_sps; H265RawPPS *pps = &common->raw_pps; H265RawProfileTierLevel *ptl = &vps->profile_tier_level; H265RawVUI *vui = &sps->vui; const AVPixFmtDescriptor *desc; int chroma_format, bit_depth; int i; memset(vps, 0, sizeof(*vps)); memset(sps, 0, sizeof(*sps)); memset(pps, 0, sizeof(*pps)); desc = av_pix_fmt_desc_get(base_ctx->input_frames->sw_format); av_assert0(desc); if (desc->nb_components == 1) { chroma_format = 0; } else { if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 1) { chroma_format = 1; } else if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 0) { chroma_format = 2; } else if (desc->log2_chroma_w == 0 && desc->log2_chroma_h == 0) { chroma_format = 3; } else { av_log(avctx, AV_LOG_ERROR, "Chroma format of input pixel format " "%s is not supported.\n", desc->name); return AVERROR(EINVAL); } } bit_depth = desc->comp[0].depth; // VPS vps->nal_unit_header = (H265RawNALUnitHeader) { .nal_unit_type = HEVC_NAL_VPS, .nuh_layer_id = 0, .nuh_temporal_id_plus1 = 1, }; vps->vps_video_parameter_set_id = 0; vps->vps_base_layer_internal_flag = 1; vps->vps_base_layer_available_flag = 1; vps->vps_max_layers_minus1 = 0; vps->vps_max_sub_layers_minus1 = 0; vps->vps_temporal_id_nesting_flag = 1; ptl->general_profile_space = 0; ptl->general_profile_idc = avctx->profile; ptl->general_tier_flag = opts->tier; ptl->general_profile_compatibility_flag[ptl->general_profile_idc] = 1; if (ptl->general_profile_compatibility_flag[1]) ptl->general_profile_compatibility_flag[2] = 1; if (ptl->general_profile_compatibility_flag[3]) { ptl->general_profile_compatibility_flag[1] = 1; ptl->general_profile_compatibility_flag[2] = 1; } ptl->general_progressive_source_flag = 1; ptl->general_interlaced_source_flag = 0; ptl->general_non_packed_constraint_flag = 1; ptl->general_frame_only_constraint_flag = 1; ptl->general_max_14bit_constraint_flag = bit_depth <= 14; ptl->general_max_12bit_constraint_flag = bit_depth <= 12; ptl->general_max_10bit_constraint_flag = bit_depth <= 10; ptl->general_max_8bit_constraint_flag = bit_depth == 8; ptl->general_max_422chroma_constraint_flag = chroma_format <= 2; ptl->general_max_420chroma_constraint_flag = chroma_format <= 1; ptl->general_max_monochrome_constraint_flag = chroma_format == 0; ptl->general_intra_constraint_flag = base_ctx->gop_size == 1; ptl->general_one_picture_only_constraint_flag = 0; ptl->general_lower_bit_rate_constraint_flag = 1; if (avctx->level != AV_LEVEL_UNKNOWN) { ptl->general_level_idc = avctx->level; } else { const H265LevelDescriptor *level; level = ff_h265_guess_level(ptl, avctx->bit_rate, base_ctx->surface_width, base_ctx->surface_height, opts->nb_slices, opts->tile_rows, opts->tile_cols, (base_ctx->b_per_p > 0) + 1); if (level) { av_log(avctx, AV_LOG_VERBOSE, "Using level %s.\n", level->name); ptl->general_level_idc = level->level_idc; } else { av_log(avctx, AV_LOG_VERBOSE, "Stream will not conform to " "any normal level; using level 8.5.\n"); ptl->general_level_idc = 255; // The tier flag must be set in level 8.5. ptl->general_tier_flag = 1; } } vps->vps_sub_layer_ordering_info_present_flag = 0; vps->vps_max_dec_pic_buffering_minus1[0] = base_ctx->max_b_depth + 1; vps->vps_max_num_reorder_pics[0] = base_ctx->max_b_depth; vps->vps_max_latency_increase_plus1[0] = 0; vps->vps_max_layer_id = 0; vps->vps_num_layer_sets_minus1 = 0; vps->layer_id_included_flag[0][0] = 1; vps->vps_timing_info_present_flag = 1; if (avctx->framerate.num > 0 && avctx->framerate.den > 0) { vps->vps_num_units_in_tick = avctx->framerate.den; vps->vps_time_scale = avctx->framerate.num; vps->vps_poc_proportional_to_timing_flag = 1; vps->vps_num_ticks_poc_diff_one_minus1 = 0; } else { vps->vps_num_units_in_tick = avctx->time_base.num; vps->vps_time_scale = avctx->time_base.den; vps->vps_poc_proportional_to_timing_flag = 0; } vps->vps_num_hrd_parameters = 0; // SPS sps->nal_unit_header = (H265RawNALUnitHeader) { .nal_unit_type = HEVC_NAL_SPS, .nuh_layer_id = 0, .nuh_temporal_id_plus1 = 1, }; sps->sps_video_parameter_set_id = vps->vps_video_parameter_set_id; sps->sps_max_sub_layers_minus1 = vps->vps_max_sub_layers_minus1; sps->sps_temporal_id_nesting_flag = vps->vps_temporal_id_nesting_flag; sps->profile_tier_level = vps->profile_tier_level; sps->sps_seq_parameter_set_id = 0; sps->chroma_format_idc = chroma_format; sps->separate_colour_plane_flag = 0; sps->pic_width_in_luma_samples = base_ctx->surface_width; sps->pic_height_in_luma_samples = base_ctx->surface_height; if (avctx->width != base_ctx->surface_width || avctx->height != base_ctx->surface_height) { sps->conformance_window_flag = 1; sps->conf_win_left_offset = 0; sps->conf_win_right_offset = (base_ctx->surface_width - avctx->width) >> desc->log2_chroma_w; sps->conf_win_top_offset = 0; sps->conf_win_bottom_offset = (base_ctx->surface_height - avctx->height) >> desc->log2_chroma_h; } else { sps->conformance_window_flag = 0; } sps->bit_depth_luma_minus8 = bit_depth - 8; sps->bit_depth_chroma_minus8 = bit_depth - 8; sps->log2_max_pic_order_cnt_lsb_minus4 = 8; sps->sps_sub_layer_ordering_info_present_flag = vps->vps_sub_layer_ordering_info_present_flag; for (i = 0; i <= sps->sps_max_sub_layers_minus1; i++) { sps->sps_max_dec_pic_buffering_minus1[i] = vps->vps_max_dec_pic_buffering_minus1[i]; sps->sps_max_num_reorder_pics[i] = vps->vps_max_num_reorder_pics[i]; sps->sps_max_latency_increase_plus1[i] = vps->vps_max_latency_increase_plus1[i]; } // These values come from the capabilities of the first encoder // implementation in the i965 driver on Intel Skylake. They may // fail badly with other platforms or drivers. // CTB size from 8x8 to 32x32. sps->log2_min_luma_coding_block_size_minus3 = 0; sps->log2_diff_max_min_luma_coding_block_size = 2; // Transform size from 4x4 to 32x32. sps->log2_min_luma_transform_block_size_minus2 = 0; sps->log2_diff_max_min_luma_transform_block_size = 3; // Full transform hierarchy allowed (2-5). sps->max_transform_hierarchy_depth_inter = 3; sps->max_transform_hierarchy_depth_intra = 3; // AMP works. sps->amp_enabled_flag = 1; // SAO and temporal MVP do not work. sps->sample_adaptive_offset_enabled_flag = 0; sps->sps_temporal_mvp_enabled_flag = 0; sps->pcm_enabled_flag = 0; // STRPSs should ideally be here rather than defined individually in // each slice, but the structure isn't completely fixed so for now // don't bother. sps->num_short_term_ref_pic_sets = 0; sps->long_term_ref_pics_present_flag = 0; sps->vui_parameters_present_flag = 1; if (avctx->sample_aspect_ratio.num != 0 && avctx->sample_aspect_ratio.den != 0) { int num, den, i; av_reduce(&num, &den, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 65535); for (i = 0; i < FF_ARRAY_ELEMS(ff_h2645_pixel_aspect); i++) { if (num == ff_h2645_pixel_aspect[i].num && den == ff_h2645_pixel_aspect[i].den) { vui->aspect_ratio_idc = i; break; } } if (i >= FF_ARRAY_ELEMS(ff_h2645_pixel_aspect)) { vui->aspect_ratio_idc = 255; vui->sar_width = num; vui->sar_height = den; } vui->aspect_ratio_info_present_flag = 1; } // Unspecified video format, from table E-2. vui->video_format = 5; vui->video_full_range_flag = avctx->color_range == AVCOL_RANGE_JPEG; vui->colour_primaries = avctx->color_primaries; vui->transfer_characteristics = avctx->color_trc; vui->matrix_coefficients = avctx->colorspace; if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED || avctx->color_trc != AVCOL_TRC_UNSPECIFIED || avctx->colorspace != AVCOL_SPC_UNSPECIFIED) vui->colour_description_present_flag = 1; if (avctx->color_range != AVCOL_RANGE_UNSPECIFIED || vui->colour_description_present_flag) vui->video_signal_type_present_flag = 1; if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) { vui->chroma_loc_info_present_flag = 1; vui->chroma_sample_loc_type_top_field = vui->chroma_sample_loc_type_bottom_field = avctx->chroma_sample_location - 1; } vui->vui_timing_info_present_flag = 1; vui->vui_num_units_in_tick = vps->vps_num_units_in_tick; vui->vui_time_scale = vps->vps_time_scale; vui->vui_poc_proportional_to_timing_flag = vps->vps_poc_proportional_to_timing_flag; vui->vui_num_ticks_poc_diff_one_minus1 = vps->vps_num_ticks_poc_diff_one_minus1; vui->vui_hrd_parameters_present_flag = 0; vui->bitstream_restriction_flag = 1; vui->motion_vectors_over_pic_boundaries_flag = 1; vui->restricted_ref_pic_lists_flag = 1; vui->max_bytes_per_pic_denom = 0; vui->max_bits_per_min_cu_denom = 0; vui->log2_max_mv_length_horizontal = 15; vui->log2_max_mv_length_vertical = 15; // PPS pps->nal_unit_header = (H265RawNALUnitHeader) { .nal_unit_type = HEVC_NAL_PPS, .nuh_layer_id = 0, .nuh_temporal_id_plus1 = 1, }; pps->pps_pic_parameter_set_id = 0; pps->pps_seq_parameter_set_id = sps->sps_seq_parameter_set_id; pps->num_ref_idx_l0_default_active_minus1 = 0; pps->num_ref_idx_l1_default_active_minus1 = 0; pps->init_qp_minus26 = opts->fixed_qp_idr - 26; pps->cu_qp_delta_enabled_flag = opts->cu_qp_delta_enabled_flag; pps->diff_cu_qp_delta_depth = 0; if (opts->tile_rows && opts->tile_cols) { int uniform_spacing; pps->tiles_enabled_flag = 1; pps->num_tile_columns_minus1 = opts->tile_cols - 1; pps->num_tile_rows_minus1 = opts->tile_rows - 1; // Test whether the spacing provided matches the H.265 uniform // spacing, and set the flag if it does. uniform_spacing = 1; for (i = 0; i <= pps->num_tile_columns_minus1 && uniform_spacing; i++) { if (opts->col_width[i] != (i + 1) * opts->slice_block_cols / opts->tile_cols - i * opts->slice_block_cols / opts->tile_cols) uniform_spacing = 0; } for (i = 0; i <= pps->num_tile_rows_minus1 && uniform_spacing; i++) { if (opts->row_height[i] != (i + 1) * opts->slice_block_rows / opts->tile_rows - i * opts->slice_block_rows / opts->tile_rows) uniform_spacing = 0; } pps->uniform_spacing_flag = uniform_spacing; for (i = 0; i <= pps->num_tile_columns_minus1; i++) pps->column_width_minus1[i] = opts->col_width[i] - 1; for (i = 0; i <= pps->num_tile_rows_minus1; i++) pps->row_height_minus1[i] = opts->row_height[i] - 1; pps->loop_filter_across_tiles_enabled_flag = 1; } pps->pps_loop_filter_across_slices_enabled_flag = 1; return 0; }