/* * Direct3D 12 HW acceleration video encoder * * Copyright (c) 2024 Intel Corporation * * 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 "libavutil/opt.h"#include "libavutil/common.h"#include "libavutil/mem.h"#include "libavutil/pixdesc.h"#include "libavutil/hwcontext_d3d12va_internal.h" #include "avcodec.h"#include "cbs.h"#include "cbs_h265.h"#include "hw_base_encode_h265.h"#include "h2645data.h"#include "h265_profile_level.h"#include "codec_internal.h"#include "d3d12va_encode.h" typedef struct D3D12VAEncodeHEVCPicture { int pic_order_cnt; int64_t last_idr_frame;} D3D12VAEncodeHEVCPicture; typedef struct D3D12VAEncodeHEVCContext { D3D12VAEncodeContext common; // User options. int qp; int profile; int level; // Writer structures. FFHWBaseEncodeH265 units; FFHWBaseEncodeH265Opts unit_opts; CodedBitstreamContext *cbc; CodedBitstreamFragment current_access_unit;} D3D12VAEncodeHEVCContext; typedef struct D3D12VAEncodeHEVCLevel { int level; D3D12_VIDEO_ENCODER_LEVELS_HEVC d3d12_level;} D3D12VAEncodeHEVCLevel; static const D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC hevc_config_support_sets[] ={ { D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_NONE, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_8x8, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_32x32, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_4x4, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_32x32, 3, 3, }, { D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_NONE, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_8x8, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_32x32, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_4x4, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_32x32, 0, 0, }, { D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_NONE, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_8x8, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_32x32, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_4x4, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_32x32, 2, 2, }, { D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_NONE, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_8x8, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_64x64, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_4x4, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_32x32, 2, 2, }, { D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_NONE, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_8x8, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_64x64, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_4x4, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_32x32, 4, 4, },}; static const D3D12VAEncodeHEVCLevel hevc_levels[] = { { 30, D3D12_VIDEO_ENCODER_LEVELS_HEVC_1 }, { 60, D3D12_VIDEO_ENCODER_LEVELS_HEVC_2 }, { 63, D3D12_VIDEO_ENCODER_LEVELS_HEVC_21 }, { 90, D3D12_VIDEO_ENCODER_LEVELS_HEVC_3 }, { 93, D3D12_VIDEO_ENCODER_LEVELS_HEVC_31 }, { 120, D3D12_VIDEO_ENCODER_LEVELS_HEVC_4 }, { 123, D3D12_VIDEO_ENCODER_LEVELS_HEVC_41 }, { 150, D3D12_VIDEO_ENCODER_LEVELS_HEVC_5 }, { 153, D3D12_VIDEO_ENCODER_LEVELS_HEVC_51 }, { 156, D3D12_VIDEO_ENCODER_LEVELS_HEVC_52 }, { 180, D3D12_VIDEO_ENCODER_LEVELS_HEVC_6 }, { 183, D3D12_VIDEO_ENCODER_LEVELS_HEVC_61 }, { 186, D3D12_VIDEO_ENCODER_LEVELS_HEVC_62 },}; static const D3D12_VIDEO_ENCODER_PROFILE_HEVC profile_main = D3D12_VIDEO_ENCODER_PROFILE_HEVC_MAIN;static const D3D12_VIDEO_ENCODER_PROFILE_HEVC profile_main10 = D3D12_VIDEO_ENCODER_PROFILE_HEVC_MAIN10; #define D3D_PROFILE_DESC(name) \ { sizeof(D3D12_VIDEO_ENCODER_PROFILE_HEVC), { .pHEVCProfile = (D3D12_VIDEO_ENCODER_PROFILE_HEVC *)&profile_ ## name } }static const D3D12VAEncodeProfile d3d12va_encode_hevc_profiles[] = { { AV_PROFILE_HEVC_MAIN, 8, 3, 1, 1, D3D_PROFILE_DESC(main) }, { AV_PROFILE_HEVC_MAIN_10, 10, 3, 1, 1, D3D_PROFILE_DESC(main10) }, { AV_PROFILE_UNKNOWN },}; static uint8_t d3d12va_encode_hevc_map_cusize(D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE cusize){ switch (cusize) { case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_8x8: return 8; case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_16x16: return 16; case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_32x32: return 32; case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_64x64: return 64; default: av_assert0(0); } return 0;} static uint8_t d3d12va_encode_hevc_map_tusize(D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE tusize){ switch (tusize) { case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_4x4: return 4; case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_8x8: return 8; case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_16x16: return 16; case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_32x32: return 32; default: av_assert0(0); } return 0;} static int d3d12va_encode_hevc_write_access_unit(AVCodecContext *avctx, char *data, size_t *data_len, CodedBitstreamFragment *au){ D3D12VAEncodeHEVCContext *priv = avctx->priv_data; int err; err = ff_cbs_write_fragment_data(priv->cbc, au); if (err < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n"); return err; } if (*data_len < 8 * au->data_size - au->data_bit_padding) { av_log(avctx, AV_LOG_ERROR, "Access unit too large: " "%zu < %zu.\n", *data_len, 8 * au->data_size - au->data_bit_padding); return AVERROR(ENOSPC); } memcpy(data, au->data, au->data_size); *data_len = 8 * au->data_size - au->data_bit_padding; return 0;} static int d3d12va_encode_hevc_add_nal(AVCodecContext *avctx, CodedBitstreamFragment *au, void *nal_unit){ H265RawNALUnitHeader *header = nal_unit; int err; err = ff_cbs_insert_unit_content(au, -1, header->nal_unit_type, nal_unit, NULL); if (err < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to add NAL unit: " "type = %d.\n", header->nal_unit_type); return err; } return 0;} static int d3d12va_encode_hevc_write_sequence_header(AVCodecContext *avctx, char *data, size_t *data_len){ D3D12VAEncodeHEVCContext *priv = avctx->priv_data; CodedBitstreamFragment *au = &priv->current_access_unit; int err; err = d3d12va_encode_hevc_add_nal(avctx, au, &priv->units.raw_vps); if (err < 0) goto fail; err = d3d12va_encode_hevc_add_nal(avctx, au, &priv->units.raw_sps); if (err < 0) goto fail; err = d3d12va_encode_hevc_add_nal(avctx, au, &priv->units.raw_pps); if (err < 0) goto fail; err = d3d12va_encode_hevc_write_access_unit(avctx, data, data_len, au);fail: ff_cbs_fragment_reset(au); return err; } static int d3d12va_encode_hevc_init_sequence_params(AVCodecContext *avctx){ FFHWBaseEncodeContext *base_ctx = avctx->priv_data; D3D12VAEncodeContext *ctx = avctx->priv_data; D3D12VAEncodeHEVCContext *priv = avctx->priv_data; AVD3D12VAFramesContext *hwctx = base_ctx->input_frames->hwctx; H265RawSPS *sps = &priv->units.raw_sps; H265RawPPS *pps = &priv->units.raw_pps; H265RawVUI *vui = &sps->vui; D3D12_VIDEO_ENCODER_PROFILE_HEVC profile = D3D12_VIDEO_ENCODER_PROFILE_HEVC_MAIN; D3D12_VIDEO_ENCODER_LEVEL_TIER_CONSTRAINTS_HEVC level = { 0 }; const AVPixFmtDescriptor *desc; uint8_t min_cu_size, max_cu_size, min_tu_size, max_tu_size; HRESULT hr; int err; D3D12_FEATURE_DATA_VIDEO_ENCODER_SUPPORT support = { .NodeIndex = 0, .Codec = D3D12_VIDEO_ENCODER_CODEC_HEVC, .InputFormat = hwctx->format, .RateControl = ctx->rc, .IntraRefresh = D3D12_VIDEO_ENCODER_INTRA_REFRESH_MODE_NONE, .SubregionFrameEncoding = D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_FULL_FRAME, .ResolutionsListCount = 1, .pResolutionList = &ctx->resolution, .CodecGopSequence = ctx->gop, .MaxReferenceFramesInDPB = MAX_DPB_SIZE - 1, .CodecConfiguration = ctx->codec_conf, .SuggestedProfile.DataSize = sizeof(D3D12_VIDEO_ENCODER_PROFILE_HEVC), .SuggestedProfile.pHEVCProfile = &profile, .SuggestedLevel.DataSize = sizeof(D3D12_VIDEO_ENCODER_LEVEL_TIER_CONSTRAINTS_HEVC), .SuggestedLevel.pHEVCLevelSetting = &level, .pResolutionDependentSupport = &ctx->res_limits, }; hr = ID3D12VideoDevice3_CheckFeatureSupport(ctx->video_device3, D3D12_FEATURE_VIDEO_ENCODER_SUPPORT, &support, sizeof(support)); if (FAILED(hr)) { av_log(avctx, AV_LOG_ERROR, "Failed to check encoder support(%lx).\n", (long)hr); return AVERROR(EINVAL); } if (!(support.SupportFlags & D3D12_VIDEO_ENCODER_SUPPORT_FLAG_GENERAL_SUPPORT_OK)) { av_log(avctx, AV_LOG_ERROR, "Driver does not support some request features. %#x\n", support.ValidationFlags); return AVERROR(EINVAL); } if (support.SupportFlags & D3D12_VIDEO_ENCODER_SUPPORT_FLAG_RECONSTRUCTED_FRAMES_REQUIRE_TEXTURE_ARRAYS) { av_log(avctx, AV_LOG_ERROR, "D3D12 video encode on this device requires texture array support, " "but it's not implemented.\n"); return AVERROR_PATCHWELCOME; } desc = av_pix_fmt_desc_get(base_ctx->input_frames->sw_format); av_assert0(desc); min_cu_size = d3d12va_encode_hevc_map_cusize(ctx->codec_conf.pHEVCConfig->MinLumaCodingUnitSize); max_cu_size = d3d12va_encode_hevc_map_cusize(ctx->codec_conf.pHEVCConfig->MaxLumaCodingUnitSize); min_tu_size = d3d12va_encode_hevc_map_tusize(ctx->codec_conf.pHEVCConfig->MinLumaTransformUnitSize); max_tu_size = d3d12va_encode_hevc_map_tusize(ctx->codec_conf.pHEVCConfig->MaxLumaTransformUnitSize); // cu_qp_delta always required to be 1 in https://github.com/microsoft/DirectX-Specs/blob/master/d3d/D3D12VideoEncoding.md priv->unit_opts.cu_qp_delta_enabled_flag = 1; priv->unit_opts.nb_slices = 1; err = ff_hw_base_encode_init_params_h265(base_ctx, avctx, &priv->units, &priv->unit_opts); if (err < 0) return err; avctx->level = priv->units.raw_vps.profile_tier_level.general_level_idc; av_assert0(ctx->res_limits.SubregionBlockPixelsSize % min_cu_size == 0); sps->pic_width_in_luma_samples = FFALIGN(base_ctx->surface_width, ctx->res_limits.SubregionBlockPixelsSize); sps->pic_height_in_luma_samples = FFALIGN(base_ctx->surface_height, ctx->res_limits.SubregionBlockPixelsSize); if (avctx->width != sps->pic_width_in_luma_samples || avctx->height != sps->pic_height_in_luma_samples) { sps->conformance_window_flag = 1; sps->conf_win_left_offset = 0; sps->conf_win_right_offset = (sps->pic_width_in_luma_samples - avctx->width) >> desc->log2_chroma_w; sps->conf_win_top_offset = 0; sps->conf_win_bottom_offset = (sps->pic_height_in_luma_samples - avctx->height) >> desc->log2_chroma_h; } else { sps->conformance_window_flag = 0; } sps->log2_max_pic_order_cnt_lsb_minus4 = ctx->gop.pHEVCGroupOfPictures->log2_max_pic_order_cnt_lsb_minus4; sps->log2_min_luma_coding_block_size_minus3 = (uint8_t)(av_log2(min_cu_size) - 3); sps->log2_diff_max_min_luma_coding_block_size = (uint8_t)(av_log2(max_cu_size) - av_log2(min_cu_size)); sps->log2_min_luma_transform_block_size_minus2 = (uint8_t)(av_log2(min_tu_size) - 2); sps->log2_diff_max_min_luma_transform_block_size = (uint8_t)(av_log2(max_tu_size) - av_log2(min_tu_size)); sps->max_transform_hierarchy_depth_inter = ctx->codec_conf.pHEVCConfig->max_transform_hierarchy_depth_inter; sps->max_transform_hierarchy_depth_intra = ctx->codec_conf.pHEVCConfig->max_transform_hierarchy_depth_intra; sps->amp_enabled_flag = !!(ctx->codec_conf.pHEVCConfig->ConfigurationFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_USE_ASYMETRIC_MOTION_PARTITION); sps->sample_adaptive_offset_enabled_flag = !!(ctx->codec_conf.pHEVCConfig->ConfigurationFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_ENABLE_SAO_FILTER); pps->cabac_init_present_flag = 1; pps->init_qp_minus26 = 0; pps->transform_skip_enabled_flag = !!(ctx->codec_conf.pHEVCConfig->ConfigurationFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_ENABLE_TRANSFORM_SKIPPING); pps->pps_slice_chroma_qp_offsets_present_flag = 1; pps->tiles_enabled_flag = 0; // no tiling in D3D12 pps->pps_loop_filter_across_slices_enabled_flag = !(ctx->codec_conf.pHEVCConfig->ConfigurationFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_DISABLE_LOOP_FILTER_ACROSS_SLICES); pps->deblocking_filter_control_present_flag = 1; return 0;} static int d3d12va_encode_hevc_get_encoder_caps(AVCodecContext *avctx){ int i; HRESULT hr; uint8_t min_cu_size, max_cu_size; FFHWBaseEncodeContext *base_ctx = avctx->priv_data; D3D12VAEncodeContext *ctx = avctx->priv_data; D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC *config; D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC hevc_caps; D3D12_FEATURE_DATA_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT codec_caps = { .NodeIndex = 0, .Codec = D3D12_VIDEO_ENCODER_CODEC_HEVC, .Profile = ctx->profile->d3d12_profile, .CodecSupportLimits.DataSize = sizeof(D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC), }; for (i = 0; i < FF_ARRAY_ELEMS(hevc_config_support_sets); i++) { hevc_caps = hevc_config_support_sets[i]; codec_caps.CodecSupportLimits.pHEVCSupport = &hevc_caps; hr = ID3D12VideoDevice3_CheckFeatureSupport(ctx->video_device3, D3D12_FEATURE_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT, &codec_caps, sizeof(codec_caps)); if (SUCCEEDED(hr) && codec_caps.IsSupported) break; } if (i == FF_ARRAY_ELEMS(hevc_config_support_sets)) { av_log(avctx, AV_LOG_ERROR, "Unsupported codec configuration\n"); return AVERROR(EINVAL); } ctx->codec_conf.DataSize = sizeof(D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC); ctx->codec_conf.pHEVCConfig = av_mallocz(ctx->codec_conf.DataSize); if (!ctx->codec_conf.pHEVCConfig) return AVERROR(ENOMEM); config = ctx->codec_conf.pHEVCConfig; config->ConfigurationFlags = D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_NONE; config->MinLumaCodingUnitSize = hevc_caps.MinLumaCodingUnitSize; config->MaxLumaCodingUnitSize = hevc_caps.MaxLumaCodingUnitSize; config->MinLumaTransformUnitSize = hevc_caps.MinLumaTransformUnitSize; config->MaxLumaTransformUnitSize = hevc_caps.MaxLumaTransformUnitSize; config->max_transform_hierarchy_depth_inter = hevc_caps.max_transform_hierarchy_depth_inter; config->max_transform_hierarchy_depth_intra = hevc_caps.max_transform_hierarchy_depth_intra; if (hevc_caps.SupportFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_ASYMETRIC_MOTION_PARTITION_SUPPORT || hevc_caps.SupportFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_ASYMETRIC_MOTION_PARTITION_REQUIRED) config->ConfigurationFlags |= D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_USE_ASYMETRIC_MOTION_PARTITION; if (hevc_caps.SupportFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_SAO_FILTER_SUPPORT) config->ConfigurationFlags |= D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_ENABLE_SAO_FILTER; if (hevc_caps.SupportFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_DISABLING_LOOP_FILTER_ACROSS_SLICES_SUPPORT) config->ConfigurationFlags |= D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_DISABLE_LOOP_FILTER_ACROSS_SLICES; if (hevc_caps.SupportFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_TRANSFORM_SKIP_SUPPORT) config->ConfigurationFlags |= D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_ENABLE_TRANSFORM_SKIPPING; if (hevc_caps.SupportFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_P_FRAMES_IMPLEMENTED_AS_LOW_DELAY_B_FRAMES) ctx->bi_not_empty = 1; // block sizes min_cu_size = d3d12va_encode_hevc_map_cusize(hevc_caps.MinLumaCodingUnitSize); max_cu_size = d3d12va_encode_hevc_map_cusize(hevc_caps.MaxLumaCodingUnitSize); av_log(avctx, AV_LOG_VERBOSE, "Using CTU size %dx%d, " "min CB size %dx%d.\n", max_cu_size, max_cu_size, min_cu_size, min_cu_size); base_ctx->surface_width = FFALIGN(avctx->width, min_cu_size); base_ctx->surface_height = FFALIGN(avctx->height, min_cu_size); return 0;} static int d3d12va_encode_hevc_configure(AVCodecContext *avctx){ FFHWBaseEncodeContext *base_ctx = avctx->priv_data; D3D12VAEncodeContext *ctx = avctx->priv_data; D3D12VAEncodeHEVCContext *priv = avctx->priv_data; int fixed_qp_idr, fixed_qp_p, fixed_qp_b; int err; err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_HEVC, avctx); if (err < 0) return err; // Rate control if (ctx->rc.Mode == D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_CQP) { D3D12_VIDEO_ENCODER_RATE_CONTROL_CQP *cqp_ctl; fixed_qp_p = av_clip(ctx->rc_quality, 1, 51); if (avctx->i_quant_factor > 0.0) fixed_qp_idr = av_clip((avctx->i_quant_factor * fixed_qp_p + avctx->i_quant_offset) + 0.5, 1, 51); else fixed_qp_idr = fixed_qp_p; if (avctx->b_quant_factor > 0.0) fixed_qp_b = av_clip((avctx->b_quant_factor * fixed_qp_p + avctx->b_quant_offset) + 0.5, 1, 51); else fixed_qp_b = fixed_qp_p; av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = " "%d / %d / %d for IDR- / P- / B-frames.\n", fixed_qp_idr, fixed_qp_p, fixed_qp_b); ctx->rc.ConfigParams.DataSize = sizeof(D3D12_VIDEO_ENCODER_RATE_CONTROL_CQP); cqp_ctl = av_mallocz(ctx->rc.ConfigParams.DataSize); if (!cqp_ctl) return AVERROR(ENOMEM); cqp_ctl->ConstantQP_FullIntracodedFrame = fixed_qp_idr; cqp_ctl->ConstantQP_InterPredictedFrame_PrevRefOnly = fixed_qp_p; cqp_ctl->ConstantQP_InterPredictedFrame_BiDirectionalRef = fixed_qp_b; ctx->rc.ConfigParams.pConfiguration_CQP = cqp_ctl; } // GOP ctx->gop.DataSize = sizeof(D3D12_VIDEO_ENCODER_SEQUENCE_GOP_STRUCTURE_HEVC); ctx->gop.pHEVCGroupOfPictures = av_mallocz(ctx->gop.DataSize); if (!ctx->gop.pHEVCGroupOfPictures) return AVERROR(ENOMEM); ctx->gop.pHEVCGroupOfPictures->GOPLength = base_ctx->gop_size; ctx->gop.pHEVCGroupOfPictures->PPicturePeriod = base_ctx->b_per_p + 1; // Power of 2 if (base_ctx->gop_size & base_ctx->gop_size - 1 == 0) ctx->gop.pHEVCGroupOfPictures->log2_max_pic_order_cnt_lsb_minus4 = FFMAX(av_log2(base_ctx->gop_size) - 4, 0); else ctx->gop.pHEVCGroupOfPictures->log2_max_pic_order_cnt_lsb_minus4 = FFMAX(av_log2(base_ctx->gop_size) - 3, 0); return 0;} static int d3d12va_encode_hevc_set_level(AVCodecContext *avctx){Lines 1–500 of 797. 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/* * Direct3D 12 HW acceleration video encoder * * Copyright (c) 2024 Intel Corporation * * 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 "libavutil/opt.h" #include "libavutil/common.h" #include "libavutil/mem.h" #include "libavutil/pixdesc.h" #include "libavutil/hwcontext_d3d12va_internal.h" #include "avcodec.h" #include "cbs.h" #include "cbs_h265.h" #include "hw_base_encode_h265.h" #include "h2645data.h" #include "h265_profile_level.h" #include "codec_internal.h" #include "d3d12va_encode.h" typedef struct D3D12VAEncodeHEVCPicture { int pic_order_cnt; int64_t last_idr_frame; } D3D12VAEncodeHEVCPicture; typedef struct D3D12VAEncodeHEVCContext { D3D12VAEncodeContext common; // User options. int qp; int profile; int level; // Writer structures. FFHWBaseEncodeH265 units; FFHWBaseEncodeH265Opts unit_opts; CodedBitstreamContext *cbc; CodedBitstreamFragment current_access_unit; } D3D12VAEncodeHEVCContext; typedef struct D3D12VAEncodeHEVCLevel { int level; D3D12_VIDEO_ENCODER_LEVELS_HEVC d3d12_level; } D3D12VAEncodeHEVCLevel; static const D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC hevc_config_support_sets[] = { { D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_NONE, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_8x8, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_32x32, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_4x4, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_32x32, 3, 3, }, { D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_NONE, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_8x8, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_32x32, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_4x4, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_32x32, 0, 0, }, { D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_NONE, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_8x8, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_32x32, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_4x4, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_32x32, 2, 2, }, { D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_NONE, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_8x8, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_64x64, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_4x4, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_32x32, 2, 2, }, { D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_NONE, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_8x8, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_64x64, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_4x4, D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_32x32, 4, 4, }, }; static const D3D12VAEncodeHEVCLevel hevc_levels[] = { { 30, D3D12_VIDEO_ENCODER_LEVELS_HEVC_1 }, { 60, D3D12_VIDEO_ENCODER_LEVELS_HEVC_2 }, { 63, D3D12_VIDEO_ENCODER_LEVELS_HEVC_21 }, { 90, D3D12_VIDEO_ENCODER_LEVELS_HEVC_3 }, { 93, D3D12_VIDEO_ENCODER_LEVELS_HEVC_31 }, { 120, D3D12_VIDEO_ENCODER_LEVELS_HEVC_4 }, { 123, D3D12_VIDEO_ENCODER_LEVELS_HEVC_41 }, { 150, D3D12_VIDEO_ENCODER_LEVELS_HEVC_5 }, { 153, D3D12_VIDEO_ENCODER_LEVELS_HEVC_51 }, { 156, D3D12_VIDEO_ENCODER_LEVELS_HEVC_52 }, { 180, D3D12_VIDEO_ENCODER_LEVELS_HEVC_6 }, { 183, D3D12_VIDEO_ENCODER_LEVELS_HEVC_61 }, { 186, D3D12_VIDEO_ENCODER_LEVELS_HEVC_62 }, }; static const D3D12_VIDEO_ENCODER_PROFILE_HEVC profile_main = D3D12_VIDEO_ENCODER_PROFILE_HEVC_MAIN; static const D3D12_VIDEO_ENCODER_PROFILE_HEVC profile_main10 = D3D12_VIDEO_ENCODER_PROFILE_HEVC_MAIN10; #define D3D_PROFILE_DESC(name) \ { sizeof(D3D12_VIDEO_ENCODER_PROFILE_HEVC), { .pHEVCProfile = (D3D12_VIDEO_ENCODER_PROFILE_HEVC *)&profile_ ## name } } static const D3D12VAEncodeProfile d3d12va_encode_hevc_profiles[] = { { AV_PROFILE_HEVC_MAIN, 8, 3, 1, 1, D3D_PROFILE_DESC(main) }, { AV_PROFILE_HEVC_MAIN_10, 10, 3, 1, 1, D3D_PROFILE_DESC(main10) }, { AV_PROFILE_UNKNOWN }, }; static uint8_t d3d12va_encode_hevc_map_cusize(D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE cusize) { switch (cusize) { case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_8x8: return 8; case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_16x16: return 16; case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_32x32: return 32; case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_CUSIZE_64x64: return 64; default: av_assert0(0); } return 0; } static uint8_t d3d12va_encode_hevc_map_tusize(D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE tusize) { switch (tusize) { case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_4x4: return 4; case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_8x8: return 8; case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_16x16: return 16; case D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_TUSIZE_32x32: return 32; default: av_assert0(0); } return 0; } static int d3d12va_encode_hevc_write_access_unit(AVCodecContext *avctx, char *data, size_t *data_len, CodedBitstreamFragment *au) { D3D12VAEncodeHEVCContext *priv = avctx->priv_data; int err; err = ff_cbs_write_fragment_data(priv->cbc, au); if (err < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n"); return err; } if (*data_len < 8 * au->data_size - au->data_bit_padding) { av_log(avctx, AV_LOG_ERROR, "Access unit too large: " "%zu < %zu.\n", *data_len, 8 * au->data_size - au->data_bit_padding); return AVERROR(ENOSPC); } memcpy(data, au->data, au->data_size); *data_len = 8 * au->data_size - au->data_bit_padding; return 0; } static int d3d12va_encode_hevc_add_nal(AVCodecContext *avctx, CodedBitstreamFragment *au, void *nal_unit) { H265RawNALUnitHeader *header = nal_unit; int err; err = ff_cbs_insert_unit_content(au, -1, header->nal_unit_type, nal_unit, NULL); if (err < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to add NAL unit: " "type = %d.\n", header->nal_unit_type); return err; } return 0; } static int d3d12va_encode_hevc_write_sequence_header(AVCodecContext *avctx, char *data, size_t *data_len) { D3D12VAEncodeHEVCContext *priv = avctx->priv_data; CodedBitstreamFragment *au = &priv->current_access_unit; int err; err = d3d12va_encode_hevc_add_nal(avctx, au, &priv->units.raw_vps); if (err < 0) goto fail; err = d3d12va_encode_hevc_add_nal(avctx, au, &priv->units.raw_sps); if (err < 0) goto fail; err = d3d12va_encode_hevc_add_nal(avctx, au, &priv->units.raw_pps); if (err < 0) goto fail; err = d3d12va_encode_hevc_write_access_unit(avctx, data, data_len, au); fail: ff_cbs_fragment_reset(au); return err; } static int d3d12va_encode_hevc_init_sequence_params(AVCodecContext *avctx) { FFHWBaseEncodeContext *base_ctx = avctx->priv_data; D3D12VAEncodeContext *ctx = avctx->priv_data; D3D12VAEncodeHEVCContext *priv = avctx->priv_data; AVD3D12VAFramesContext *hwctx = base_ctx->input_frames->hwctx; H265RawSPS *sps = &priv->units.raw_sps; H265RawPPS *pps = &priv->units.raw_pps; H265RawVUI *vui = &sps->vui; D3D12_VIDEO_ENCODER_PROFILE_HEVC profile = D3D12_VIDEO_ENCODER_PROFILE_HEVC_MAIN; D3D12_VIDEO_ENCODER_LEVEL_TIER_CONSTRAINTS_HEVC level = { 0 }; const AVPixFmtDescriptor *desc; uint8_t min_cu_size, max_cu_size, min_tu_size, max_tu_size; HRESULT hr; int err; D3D12_FEATURE_DATA_VIDEO_ENCODER_SUPPORT support = { .NodeIndex = 0, .Codec = D3D12_VIDEO_ENCODER_CODEC_HEVC, .InputFormat = hwctx->format, .RateControl = ctx->rc, .IntraRefresh = D3D12_VIDEO_ENCODER_INTRA_REFRESH_MODE_NONE, .SubregionFrameEncoding = D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_FULL_FRAME, .ResolutionsListCount = 1, .pResolutionList = &ctx->resolution, .CodecGopSequence = ctx->gop, .MaxReferenceFramesInDPB = MAX_DPB_SIZE - 1, .CodecConfiguration = ctx->codec_conf, .SuggestedProfile.DataSize = sizeof(D3D12_VIDEO_ENCODER_PROFILE_HEVC), .SuggestedProfile.pHEVCProfile = &profile, .SuggestedLevel.DataSize = sizeof(D3D12_VIDEO_ENCODER_LEVEL_TIER_CONSTRAINTS_HEVC), .SuggestedLevel.pHEVCLevelSetting = &level, .pResolutionDependentSupport = &ctx->res_limits, }; hr = ID3D12VideoDevice3_CheckFeatureSupport(ctx->video_device3, D3D12_FEATURE_VIDEO_ENCODER_SUPPORT, &support, sizeof(support)); if (FAILED(hr)) { av_log(avctx, AV_LOG_ERROR, "Failed to check encoder support(%lx).\n", (long)hr); return AVERROR(EINVAL); } if (!(support.SupportFlags & D3D12_VIDEO_ENCODER_SUPPORT_FLAG_GENERAL_SUPPORT_OK)) { av_log(avctx, AV_LOG_ERROR, "Driver does not support some request features. %#x\n", support.ValidationFlags); return AVERROR(EINVAL); } if (support.SupportFlags & D3D12_VIDEO_ENCODER_SUPPORT_FLAG_RECONSTRUCTED_FRAMES_REQUIRE_TEXTURE_ARRAYS) { av_log(avctx, AV_LOG_ERROR, "D3D12 video encode on this device requires texture array support, " "but it's not implemented.\n"); return AVERROR_PATCHWELCOME; } desc = av_pix_fmt_desc_get(base_ctx->input_frames->sw_format); av_assert0(desc); min_cu_size = d3d12va_encode_hevc_map_cusize(ctx->codec_conf.pHEVCConfig->MinLumaCodingUnitSize); max_cu_size = d3d12va_encode_hevc_map_cusize(ctx->codec_conf.pHEVCConfig->MaxLumaCodingUnitSize); min_tu_size = d3d12va_encode_hevc_map_tusize(ctx->codec_conf.pHEVCConfig->MinLumaTransformUnitSize); max_tu_size = d3d12va_encode_hevc_map_tusize(ctx->codec_conf.pHEVCConfig->MaxLumaTransformUnitSize); // cu_qp_delta always required to be 1 in https://github.com/microsoft/DirectX-Specs/blob/master/d3d/D3D12VideoEncoding.md priv->unit_opts.cu_qp_delta_enabled_flag = 1; priv->unit_opts.nb_slices = 1; err = ff_hw_base_encode_init_params_h265(base_ctx, avctx, &priv->units, &priv->unit_opts); if (err < 0) return err; avctx->level = priv->units.raw_vps.profile_tier_level.general_level_idc; av_assert0(ctx->res_limits.SubregionBlockPixelsSize % min_cu_size == 0); sps->pic_width_in_luma_samples = FFALIGN(base_ctx->surface_width, ctx->res_limits.SubregionBlockPixelsSize); sps->pic_height_in_luma_samples = FFALIGN(base_ctx->surface_height, ctx->res_limits.SubregionBlockPixelsSize); if (avctx->width != sps->pic_width_in_luma_samples || avctx->height != sps->pic_height_in_luma_samples) { sps->conformance_window_flag = 1; sps->conf_win_left_offset = 0; sps->conf_win_right_offset = (sps->pic_width_in_luma_samples - avctx->width) >> desc->log2_chroma_w; sps->conf_win_top_offset = 0; sps->conf_win_bottom_offset = (sps->pic_height_in_luma_samples - avctx->height) >> desc->log2_chroma_h; } else { sps->conformance_window_flag = 0; } sps->log2_max_pic_order_cnt_lsb_minus4 = ctx->gop.pHEVCGroupOfPictures->log2_max_pic_order_cnt_lsb_minus4; sps->log2_min_luma_coding_block_size_minus3 = (uint8_t)(av_log2(min_cu_size) - 3); sps->log2_diff_max_min_luma_coding_block_size = (uint8_t)(av_log2(max_cu_size) - av_log2(min_cu_size)); sps->log2_min_luma_transform_block_size_minus2 = (uint8_t)(av_log2(min_tu_size) - 2); sps->log2_diff_max_min_luma_transform_block_size = (uint8_t)(av_log2(max_tu_size) - av_log2(min_tu_size)); sps->max_transform_hierarchy_depth_inter = ctx->codec_conf.pHEVCConfig->max_transform_hierarchy_depth_inter; sps->max_transform_hierarchy_depth_intra = ctx->codec_conf.pHEVCConfig->max_transform_hierarchy_depth_intra; sps->amp_enabled_flag = !!(ctx->codec_conf.pHEVCConfig->ConfigurationFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_USE_ASYMETRIC_MOTION_PARTITION); sps->sample_adaptive_offset_enabled_flag = !!(ctx->codec_conf.pHEVCConfig->ConfigurationFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_ENABLE_SAO_FILTER); pps->cabac_init_present_flag = 1; pps->init_qp_minus26 = 0; pps->transform_skip_enabled_flag = !!(ctx->codec_conf.pHEVCConfig->ConfigurationFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_ENABLE_TRANSFORM_SKIPPING); pps->pps_slice_chroma_qp_offsets_present_flag = 1; pps->tiles_enabled_flag = 0; // no tiling in D3D12 pps->pps_loop_filter_across_slices_enabled_flag = !(ctx->codec_conf.pHEVCConfig->ConfigurationFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_DISABLE_LOOP_FILTER_ACROSS_SLICES); pps->deblocking_filter_control_present_flag = 1; return 0; } static int d3d12va_encode_hevc_get_encoder_caps(AVCodecContext *avctx) { int i; HRESULT hr; uint8_t min_cu_size, max_cu_size; FFHWBaseEncodeContext *base_ctx = avctx->priv_data; D3D12VAEncodeContext *ctx = avctx->priv_data; D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC *config; D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC hevc_caps; D3D12_FEATURE_DATA_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT codec_caps = { .NodeIndex = 0, .Codec = D3D12_VIDEO_ENCODER_CODEC_HEVC, .Profile = ctx->profile->d3d12_profile, .CodecSupportLimits.DataSize = sizeof(D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC), }; for (i = 0; i < FF_ARRAY_ELEMS(hevc_config_support_sets); i++) { hevc_caps = hevc_config_support_sets[i]; codec_caps.CodecSupportLimits.pHEVCSupport = &hevc_caps; hr = ID3D12VideoDevice3_CheckFeatureSupport(ctx->video_device3, D3D12_FEATURE_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT, &codec_caps, sizeof(codec_caps)); if (SUCCEEDED(hr) && codec_caps.IsSupported) break; } if (i == FF_ARRAY_ELEMS(hevc_config_support_sets)) { av_log(avctx, AV_LOG_ERROR, "Unsupported codec configuration\n"); return AVERROR(EINVAL); } ctx->codec_conf.DataSize = sizeof(D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC); ctx->codec_conf.pHEVCConfig = av_mallocz(ctx->codec_conf.DataSize); if (!ctx->codec_conf.pHEVCConfig) return AVERROR(ENOMEM); config = ctx->codec_conf.pHEVCConfig; config->ConfigurationFlags = D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_NONE; config->MinLumaCodingUnitSize = hevc_caps.MinLumaCodingUnitSize; config->MaxLumaCodingUnitSize = hevc_caps.MaxLumaCodingUnitSize; config->MinLumaTransformUnitSize = hevc_caps.MinLumaTransformUnitSize; config->MaxLumaTransformUnitSize = hevc_caps.MaxLumaTransformUnitSize; config->max_transform_hierarchy_depth_inter = hevc_caps.max_transform_hierarchy_depth_inter; config->max_transform_hierarchy_depth_intra = hevc_caps.max_transform_hierarchy_depth_intra; if (hevc_caps.SupportFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_ASYMETRIC_MOTION_PARTITION_SUPPORT || hevc_caps.SupportFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_ASYMETRIC_MOTION_PARTITION_REQUIRED) config->ConfigurationFlags |= D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_USE_ASYMETRIC_MOTION_PARTITION; if (hevc_caps.SupportFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_SAO_FILTER_SUPPORT) config->ConfigurationFlags |= D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_ENABLE_SAO_FILTER; if (hevc_caps.SupportFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_DISABLING_LOOP_FILTER_ACROSS_SLICES_SUPPORT) config->ConfigurationFlags |= D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_DISABLE_LOOP_FILTER_ACROSS_SLICES; if (hevc_caps.SupportFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_TRANSFORM_SKIP_SUPPORT) config->ConfigurationFlags |= D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_HEVC_FLAG_ENABLE_TRANSFORM_SKIPPING; if (hevc_caps.SupportFlags & D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_P_FRAMES_IMPLEMENTED_AS_LOW_DELAY_B_FRAMES) ctx->bi_not_empty = 1; // block sizes min_cu_size = d3d12va_encode_hevc_map_cusize(hevc_caps.MinLumaCodingUnitSize); max_cu_size = d3d12va_encode_hevc_map_cusize(hevc_caps.MaxLumaCodingUnitSize); av_log(avctx, AV_LOG_VERBOSE, "Using CTU size %dx%d, " "min CB size %dx%d.\n", max_cu_size, max_cu_size, min_cu_size, min_cu_size); base_ctx->surface_width = FFALIGN(avctx->width, min_cu_size); base_ctx->surface_height = FFALIGN(avctx->height, min_cu_size); return 0; } static int d3d12va_encode_hevc_configure(AVCodecContext *avctx) { FFHWBaseEncodeContext *base_ctx = avctx->priv_data; D3D12VAEncodeContext *ctx = avctx->priv_data; D3D12VAEncodeHEVCContext *priv = avctx->priv_data; int fixed_qp_idr, fixed_qp_p, fixed_qp_b; int err; err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_HEVC, avctx); if (err < 0) return err; // Rate control if (ctx->rc.Mode == D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_CQP) { D3D12_VIDEO_ENCODER_RATE_CONTROL_CQP *cqp_ctl; fixed_qp_p = av_clip(ctx->rc_quality, 1, 51); if (avctx->i_quant_factor > 0.0) fixed_qp_idr = av_clip((avctx->i_quant_factor * fixed_qp_p + avctx->i_quant_offset) + 0.5, 1, 51); else fixed_qp_idr = fixed_qp_p; if (avctx->b_quant_factor > 0.0) fixed_qp_b = av_clip((avctx->b_quant_factor * fixed_qp_p + avctx->b_quant_offset) + 0.5, 1, 51); else fixed_qp_b = fixed_qp_p; av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = " "%d / %d / %d for IDR- / P- / B-frames.\n", fixed_qp_idr, fixed_qp_p, fixed_qp_b); ctx->rc.ConfigParams.DataSize = sizeof(D3D12_VIDEO_ENCODER_RATE_CONTROL_CQP); cqp_ctl = av_mallocz(ctx->rc.ConfigParams.DataSize); if (!cqp_ctl) return AVERROR(ENOMEM); cqp_ctl->ConstantQP_FullIntracodedFrame = fixed_qp_idr; cqp_ctl->ConstantQP_InterPredictedFrame_PrevRefOnly = fixed_qp_p; cqp_ctl->ConstantQP_InterPredictedFrame_BiDirectionalRef = fixed_qp_b; ctx->rc.ConfigParams.pConfiguration_CQP = cqp_ctl; } // GOP ctx->gop.DataSize = sizeof(D3D12_VIDEO_ENCODER_SEQUENCE_GOP_STRUCTURE_HEVC); ctx->gop.pHEVCGroupOfPictures = av_mallocz(ctx->gop.DataSize); if (!ctx->gop.pHEVCGroupOfPictures) return AVERROR(ENOMEM); ctx->gop.pHEVCGroupOfPictures->GOPLength = base_ctx->gop_size; ctx->gop.pHEVCGroupOfPictures->PPicturePeriod = base_ctx->b_per_p + 1; // Power of 2 if (base_ctx->gop_size & base_ctx->gop_size - 1 == 0) ctx->gop.pHEVCGroupOfPictures->log2_max_pic_order_cnt_lsb_minus4 = FFMAX(av_log2(base_ctx->gop_size) - 4, 0); else ctx->gop.pHEVCGroupOfPictures->log2_max_pic_order_cnt_lsb_minus4 = FFMAX(av_log2(base_ctx->gop_size) - 3, 0); return 0; } static int d3d12va_encode_hevc_set_level(AVCodecContext *avctx) {