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[79.124.17.100]) by mx.google.com with ESMTP id 2adb3069b0e04-5365f8fecb9si3854899e87.443.2024.09.12.03.19.10; Thu, 12 Sep 2024 03:19:11 -0700 (PDT) Received-SPF: pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) client-ip=79.124.17.100; Authentication-Results: mx.google.com; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 9028568DE09; Thu, 12 Sep 2024 11:23:51 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from vidala.lynne.ee (vidala.pars.ee [116.203.72.101]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 11BE668D5CA for ; Thu, 12 Sep 2024 11:23:42 +0300 (EEST) To: ffmpeg-devel@ffmpeg.org Date: Thu, 12 Sep 2024 10:23:17 +0200 Message-ID: <20240912082334.925402-2-dev@lynne.ee> X-Mailer: git-send-email 2.45.2.753.g447d99e1c3b In-Reply-To: <20240912082334.925402-1-dev@lynne.ee> References: <20240912082334.925402-1-dev@lynne.ee> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 2/3] hw_base_encode_h265: split off SPS/PPS/VPS generation from VAAPI X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Lynne via ffmpeg-devel From: Lynne Reply-To: FFmpeg development discussions and patches Cc: Lynne Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" X-TUID: fh2w2/GXb4jN --- libavcodec/hw_base_encode_h265.c | 351 +++++++++++++++++++++++++++++++ libavcodec/hw_base_encode_h265.h | 56 +++++ 2 files changed, 407 insertions(+) create mode 100644 libavcodec/hw_base_encode_h265.c create mode 100644 libavcodec/hw_base_encode_h265.h diff --git a/libavcodec/hw_base_encode_h265.c b/libavcodec/hw_base_encode_h265.c new file mode 100644 index 0000000000..dceec8aba9 --- /dev/null +++ b/libavcodec/hw_base_encode_h265.c @@ -0,0 +1,351 @@ +/* + * 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; +} diff --git a/libavcodec/hw_base_encode_h265.h b/libavcodec/hw_base_encode_h265.h new file mode 100644 index 0000000000..468f91c9b6 --- /dev/null +++ b/libavcodec/hw_base_encode_h265.h @@ -0,0 +1,56 @@ +/* + * 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 + */ + +#ifndef AVCODEC_HW_BASE_ENCODE_H265_H +#define AVCODEC_HW_BASE_ENCODE_H265_H + +#include "hw_base_encode.h" +#include "cbs_h265.h" + +typedef struct FFHWBaseEncodeH265 { + H265RawVPS raw_vps; + H265RawSPS raw_sps; + H265RawPPS raw_pps; + + int dpb_frames; +} FFHWBaseEncodeH265; + +typedef struct FFHWBaseEncodeH265Opts { + int tier; + int fixed_qp_idr; + int cu_qp_delta_enabled_flag; + + int tile_rows; + int tile_cols; + + int nb_slices; + int slice_block_rows; + int slice_block_cols; + + // Tile width of the i-th column. + int col_width[22]; + // Tile height of i-th row. + int row_height[22]; +} FFHWBaseEncodeH265Opts; + +int ff_hw_base_encode_init_params_h265(FFHWBaseEncodeContext *base_ctx, + AVCodecContext *avctx, + FFHWBaseEncodeH265 *common, + FFHWBaseEncodeH265Opts *opts); + +#endif /* AVCODEC_HW_BASE_ENCODE_H265_H */