| /* |
| * 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; |
| } |
