/* * 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 #include #include #include "libavutil/avassert.h" #include "libavutil/common.h" #include "libavutil/opt.h" #include "avcodec.h" #include "cbs.h" #include "cbs_h265.h" #include "hevc.h" #include "internal.h" #include "put_bits.h" #include "vaapi_encode.h" typedef struct VAAPIEncodeH265Context { unsigned int ctu_width; unsigned int ctu_height; int fixed_qp_idr; int fixed_qp_p; int fixed_qp_b; H265RawAUD aud; H265RawVPS vps; H265RawSPS sps; H265RawPPS pps; H265RawSlice slice; int64_t last_idr_frame; int pic_order_cnt; int slice_nal_unit; int slice_type; int pic_type; CodedBitstreamContext *cbc; CodedBitstreamFragment current_access_unit; int aud_needed; } VAAPIEncodeH265Context; typedef struct VAAPIEncodeH265Options { int qp; int aud; } VAAPIEncodeH265Options; static int vaapi_encode_h265_write_access_unit(AVCodecContext *avctx, char *data, size_t *data_len, CodedBitstreamFragment *au) { VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH265Context *priv = ctx->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 vaapi_encode_h265_add_nal(AVCodecContext *avctx, CodedBitstreamFragment *au, void *nal_unit) { VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH265Context *priv = ctx->priv_data; H265RawNALUnitHeader *header = nal_unit; int err; err = ff_cbs_insert_unit_content(priv->cbc, au, -1, header->nal_unit_type, nal_unit); 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 vaapi_encode_h265_write_sequence_header(AVCodecContext *avctx, char *data, size_t *data_len) { VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH265Context *priv = ctx->priv_data; CodedBitstreamFragment *au = &priv->current_access_unit; int err; if (priv->aud_needed) { err = vaapi_encode_h265_add_nal(avctx, au, &priv->aud); if (err < 0) goto fail; priv->aud_needed = 0; } err = vaapi_encode_h265_add_nal(avctx, au, &priv->vps); if (err < 0) goto fail; err = vaapi_encode_h265_add_nal(avctx, au, &priv->sps); if (err < 0) goto fail; err = vaapi_encode_h265_add_nal(avctx, au, &priv->pps); if (err < 0) goto fail; err = vaapi_encode_h265_write_access_unit(avctx, data, data_len, au); fail: ff_cbs_fragment_uninit(priv->cbc, au); return err; } static int vaapi_encode_h265_write_slice_header(AVCodecContext *avctx, VAAPIEncodePicture *pic, VAAPIEncodeSlice *slice, char *data, size_t *data_len) { VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH265Context *priv = ctx->priv_data; CodedBitstreamFragment *au = &priv->current_access_unit; int err; if (priv->aud_needed) { err = vaapi_encode_h265_add_nal(avctx, au, &priv->aud); if (err < 0) goto fail; priv->aud_needed = 0; } err = vaapi_encode_h265_add_nal(avctx, au, &priv->slice); if (err < 0) goto fail; err = vaapi_encode_h265_write_access_unit(avctx, data, data_len, au); fail: ff_cbs_fragment_uninit(priv->cbc, au); return err; } static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx) { VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH265Context *priv = ctx->priv_data; H265RawVPS *vps = &priv->vps; H265RawSPS *sps = &priv->sps; H265RawPPS *pps = &priv->pps; H265RawVUI *vui = &sps->vui; VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params; VAEncPictureParameterBufferHEVC *vpic = ctx->codec_picture_params; int i; memset(&priv->current_access_unit, 0, sizeof(priv->current_access_unit)); memset(vps, 0, sizeof(*vps)); memset(sps, 0, sizeof(*sps)); memset(pps, 0, sizeof(*pps)); // 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; vps->profile_tier_level = (H265RawProfileTierLevel) { .general_profile_space = 0, .general_profile_idc = avctx->profile, .general_tier_flag = 0, .general_progressive_source_flag = 1, .general_interlaced_source_flag = 0, .general_non_packed_constraint_flag = 1, .general_frame_only_constraint_flag = 1, .general_level_idc = avctx->level, }; vps->profile_tier_level.general_profile_compatibility_flag[avctx->profile & 31] = 1; vps->vps_sub_layer_ordering_info_present_flag = 0; vps->vps_max_dec_pic_buffering_minus1[0] = (ctx->b_per_p > 0) + 1; vps->vps_max_num_reorder_pics[0] = (ctx->b_per_p > 0); 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 = 1; // YUV 4:2:0. sps->separate_colour_plane_flag = 0; sps->pic_width_in_luma_samples = ctx->surface_width; sps->pic_height_in_luma_samples = ctx->surface_height; if (avctx->width != ctx->surface_width || avctx->height != ctx->surface_height) { sps->conformance_window_flag = 1; sps->conf_win_left_offset = 0; sps->conf_win_right_offset = (ctx->surface_width - avctx->width) / 2; sps->conf_win_top_offset = 0; sps->conf_win_bottom_offset = (ctx->surface_height - avctx->height) / 2; } else { sps->conformance_window_flag = 0; } sps->bit_depth_luma_minus8 = avctx->profile == FF_PROFILE_HEVC_MAIN_10 ? 2 : 0; sps->bit_depth_chroma_minus8 = sps->bit_depth_luma_minus8; 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 have to come from the capabilities of the encoder. We have no // way to query them, so just hardcode parameters which work on the Intel // driver. // 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) { static const AVRational sar_idc[] = { { 0, 0 }, { 1, 1 }, { 12, 11 }, { 10, 11 }, { 16, 11 }, { 40, 33 }, { 24, 11 }, { 20, 11 }, { 32, 11 }, { 80, 33 }, { 18, 11 }, { 15, 11 }, { 64, 33 }, { 160, 99 }, { 4, 3 }, { 3, 2 }, { 2, 1 }, }; int i; for (i = 0; i < FF_ARRAY_ELEMS(sar_idc); i++) { if (avctx->sample_aspect_ratio.num == sar_idc[i].num && avctx->sample_aspect_ratio.den == sar_idc[i].den) { vui->aspect_ratio_idc = i; break; } } if (i >= FF_ARRAY_ELEMS(sar_idc)) { vui->aspect_ratio_idc = 255; vui->sar_width = avctx->sample_aspect_ratio.num; vui->sar_height = avctx->sample_aspect_ratio.den; } vui->aspect_ratio_info_present_flag = 1; } if (avctx->color_range != AVCOL_RANGE_UNSPECIFIED || avctx->color_primaries != AVCOL_PRI_UNSPECIFIED || avctx->color_trc != AVCOL_TRC_UNSPECIFIED || avctx->colorspace != AVCOL_SPC_UNSPECIFIED) { vui->video_signal_type_present_flag = 1; vui->video_format = 5; // Unspecified. vui->video_full_range_flag = avctx->color_range == AVCOL_RANGE_JPEG; if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED || avctx->color_trc != AVCOL_TRC_UNSPECIFIED || avctx->colorspace != AVCOL_SPC_UNSPECIFIED) { vui->colour_description_present_flag = 1; vui->colour_primaries = avctx->color_primaries; vui->transfer_characteristics = avctx->color_trc; vui->matrix_coefficients = avctx->colorspace; } } else { vui->video_format = 5; vui->video_full_range_flag = 0; vui->colour_primaries = avctx->color_primaries; vui->transfer_characteristics = avctx->color_trc; vui->matrix_coefficients = avctx->colorspace; } 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 = priv->fixed_qp_idr - 26; pps->cu_qp_delta_enabled_flag = (ctx->va_rc_mode != VA_RC_CQP); pps->diff_cu_qp_delta_depth = 0; pps->pps_loop_filter_across_slices_enabled_flag = 1; // Fill VAAPI parameter buffers. *vseq = (VAEncSequenceParameterBufferHEVC) { .general_profile_idc = vps->profile_tier_level.general_profile_idc, .general_level_idc = vps->profile_tier_level.general_level_idc, .general_tier_flag = vps->profile_tier_level.general_tier_flag, .intra_period = avctx->gop_size, .intra_idr_period = avctx->gop_size, .ip_period = ctx->b_per_p + 1, .bits_per_second = avctx->bit_rate, .pic_width_in_luma_samples = sps->pic_width_in_luma_samples, .pic_height_in_luma_samples = sps->pic_height_in_luma_samples, .seq_fields.bits = { .chroma_format_idc = sps->chroma_format_idc, .separate_colour_plane_flag = sps->separate_colour_plane_flag, .bit_depth_luma_minus8 = sps->bit_depth_luma_minus8, .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8, .scaling_list_enabled_flag = sps->scaling_list_enabled_flag, .strong_intra_smoothing_enabled_flag = sps->strong_intra_smoothing_enabled_flag, .amp_enabled_flag = sps->amp_enabled_flag, .sample_adaptive_offset_enabled_flag = sps->sample_adaptive_offset_enabled_flag, .pcm_enabled_flag = sps->pcm_enabled_flag, .pcm_loop_filter_disabled_flag = sps->pcm_loop_filter_disabled_flag, .sps_temporal_mvp_enabled_flag = sps->sps_temporal_mvp_enabled_flag, }, .log2_min_luma_coding_block_size_minus3 = sps->log2_min_luma_coding_block_size_minus3, .log2_diff_max_min_luma_coding_block_size = sps->log2_diff_max_min_luma_coding_block_size, .log2_min_transform_block_size_minus2 = sps->log2_min_luma_transform_block_size_minus2, .log2_diff_max_min_transform_block_size = sps->log2_diff_max_min_luma_transform_block_size, .max_transform_hierarchy_depth_inter = sps->max_transform_hierarchy_depth_inter, .max_transform_hierarchy_depth_intra = sps->max_transform_hierarchy_depth_intra, .pcm_sample_bit_depth_luma_minus1 = sps->pcm_sample_bit_depth_luma_minus1, .pcm_sample_bit_depth_chroma_minus1 = sps->pcm_sample_bit_depth_chroma_minus1, .log2_min_pcm_luma_coding_block_size_minus3 = sps->log2_min_pcm_luma_coding_block_size_minus3, .log2_max_pcm_luma_coding_block_size_minus3 = sps->log2_min_pcm_luma_coding_block_size_minus3 + sps->log2_diff_max_min_pcm_luma_coding_block_size, .vui_parameters_present_flag = 0, }; *vpic = (VAEncPictureParameterBufferHEVC) { .decoded_curr_pic = { .picture_id = VA_INVALID_ID, .flags = VA_PICTURE_HEVC_INVALID, }, .coded_buf = VA_INVALID_ID, .collocated_ref_pic_index = 0xff, .last_picture = 0, .pic_init_qp = pps->init_qp_minus26 + 26, .diff_cu_qp_delta_depth = pps->diff_cu_qp_delta_depth, .pps_cb_qp_offset = pps->pps_cb_qp_offset, .pps_cr_qp_offset = pps->pps_cr_qp_offset, .num_tile_columns_minus1 = pps->num_tile_columns_minus1, .num_tile_rows_minus1 = pps->num_tile_rows_minus1, .log2_parallel_merge_level_minus2 = pps->log2_parallel_merge_level_minus2, .ctu_max_bitsize_allowed = 0, .num_ref_idx_l0_default_active_minus1 = pps->num_ref_idx_l0_default_active_minus1, .num_ref_idx_l1_default_active_minus1 = pps->num_ref_idx_l1_default_active_minus1, .slice_pic_parameter_set_id = pps->pps_pic_parameter_set_id, .pic_fields.bits = { .sign_data_hiding_enabled_flag = pps->sign_data_hiding_enabled_flag, .constrained_intra_pred_flag = pps->constrained_intra_pred_flag, .transform_skip_enabled_flag = pps->transform_skip_enabled_flag, .cu_qp_delta_enabled_flag = pps->cu_qp_delta_enabled_flag, .weighted_pred_flag = pps->weighted_pred_flag, .weighted_bipred_flag = pps->weighted_bipred_flag, .transquant_bypass_enabled_flag = pps->transquant_bypass_enabled_flag, .tiles_enabled_flag = pps->tiles_enabled_flag, .entropy_coding_sync_enabled_flag = pps->entropy_coding_sync_enabled_flag, .loop_filter_across_tiles_enabled_flag = pps->loop_filter_across_tiles_enabled_flag, .scaling_list_data_present_flag = (sps->sps_scaling_list_data_present_flag | pps->pps_scaling_list_data_present_flag), .screen_content_flag = 0, .enable_gpu_weighted_prediction = 0, .no_output_of_prior_pics_flag = 0, }, }; return 0; } static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx, VAAPIEncodePicture *pic) { VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH265Context *priv = ctx->priv_data; VAAPIEncodeH265Options *opt = ctx->codec_options; VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params; int i; if (pic->type == PICTURE_TYPE_IDR) { av_assert0(pic->display_order == pic->encode_order); priv->last_idr_frame = pic->display_order; priv->slice_nal_unit = HEVC_NAL_IDR_W_RADL; priv->slice_type = HEVC_SLICE_I; priv->pic_type = 0; } else { av_assert0(pic->encode_order > priv->last_idr_frame); if (pic->type == PICTURE_TYPE_I) { priv->slice_nal_unit = HEVC_NAL_CRA_NUT; priv->slice_type = HEVC_SLICE_I; priv->pic_type = 0; } else if (pic->type == PICTURE_TYPE_P) { av_assert0(pic->refs[0]); priv->slice_nal_unit = HEVC_NAL_TRAIL_R; priv->slice_type = HEVC_SLICE_P; priv->pic_type = 1; } else { av_assert0(pic->refs[0] && pic->refs[1]); if (pic->refs[1]->type == PICTURE_TYPE_I) priv->slice_nal_unit = HEVC_NAL_RASL_N; else priv->slice_nal_unit = HEVC_NAL_TRAIL_N; priv->slice_type = HEVC_SLICE_B; priv->pic_type = 2; } } priv->pic_order_cnt = pic->display_order - priv->last_idr_frame; if (opt->aud) { priv->aud_needed = 1; priv->aud.nal_unit_header = (H265RawNALUnitHeader) { .nal_unit_type = HEVC_NAL_AUD, .nuh_layer_id = 0, .nuh_temporal_id_plus1 = 1, }; priv->aud.pic_type = priv->pic_type; } else { priv->aud_needed = 0; } vpic->decoded_curr_pic = (VAPictureHEVC) { .picture_id = pic->recon_surface, .pic_order_cnt = priv->pic_order_cnt, .flags = 0, }; for (i = 0; i < pic->nb_refs; i++) { VAAPIEncodePicture *ref = pic->refs[i]; av_assert0(ref && ref->encode_order < pic->encode_order); vpic->reference_frames[i] = (VAPictureHEVC) { .picture_id = ref->recon_surface, .pic_order_cnt = ref->display_order - priv->last_idr_frame, .flags = (ref->display_order < pic->display_order ? VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) | (ref->display_order > pic->display_order ? VA_PICTURE_HEVC_RPS_ST_CURR_AFTER : 0), }; } for (; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) { vpic->reference_frames[i] = (VAPictureHEVC) { .picture_id = VA_INVALID_ID, .flags = VA_PICTURE_HEVC_INVALID, }; } vpic->coded_buf = pic->output_buffer; vpic->nal_unit_type = priv->slice_nal_unit; switch (pic->type) { case PICTURE_TYPE_IDR: vpic->pic_fields.bits.idr_pic_flag = 1; vpic->pic_fields.bits.coding_type = 1; vpic->pic_fields.bits.reference_pic_flag = 1; break; case PICTURE_TYPE_I: vpic->pic_fields.bits.idr_pic_flag = 0; vpic->pic_fields.bits.coding_type = 1; vpic->pic_fields.bits.reference_pic_flag = 1; break; case PICTURE_TYPE_P: vpic->pic_fields.bits.idr_pic_flag = 0; vpic->pic_fields.bits.coding_type = 2; vpic->pic_fields.bits.reference_pic_flag = 1; break; case PICTURE_TYPE_B: vpic->pic_fields.bits.idr_pic_flag = 0; vpic->pic_fields.bits.coding_type = 3; vpic->pic_fields.bits.reference_pic_flag = 0; break; default: av_assert0(0 && "invalid picture type"); } pic->nb_slices = 1; return 0; } static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx, VAAPIEncodePicture *pic, VAAPIEncodeSlice *slice) { VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH265Context *priv = ctx->priv_data; const H265RawSPS *sps = &priv->sps; const H265RawPPS *pps = &priv->pps; H265RawSliceHeader *sh = &priv->slice.header; VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params; VAEncSliceParameterBufferHEVC *vslice = slice->codec_slice_params; int i; sh->nal_unit_header = (H265RawNALUnitHeader) { .nal_unit_type = priv->slice_nal_unit, .nuh_layer_id = 0, .nuh_temporal_id_plus1 = 1, }; sh->slice_pic_parameter_set_id = pps->pps_pic_parameter_set_id; // Currently we only support one slice per frame. sh->first_slice_segment_in_pic_flag = 1; sh->slice_segment_address = 0; sh->slice_type = priv->slice_type; sh->slice_pic_order_cnt_lsb = priv->pic_order_cnt & (1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1; if (pic->type != PICTURE_TYPE_IDR) { H265RawSTRefPicSet *rps; VAAPIEncodePicture *st; int used; sh->short_term_ref_pic_set_sps_flag = 0; rps = &sh->short_term_ref_pic_set; memset(rps, 0, sizeof(*rps)); for (st = ctx->pic_start; st; st = st->next) { if (st->encode_order >= pic->encode_order) { // Not yet in DPB. continue; } used = 0; for (i = 0; i < pic->nb_refs; i++) { if (pic->refs[i] == st) used = 1; } if (!used) { // Usually each picture always uses all of the others in the // DPB as references. The one case we have to treat here is // a non-IDR IRAP picture, which may need to hold unused // references across itself to be used for the decoding of // following RASL pictures. This looks for such an RASL // picture, and keeps the reference if there is one. VAAPIEncodePicture *rp; for (rp = ctx->pic_start; rp; rp = rp->next) { if (rp->encode_order < pic->encode_order) continue; if (rp->type != PICTURE_TYPE_B) continue; if (rp->refs[0] == st && rp->refs[1] == pic) break; } if (!rp) continue; } // This only works for one instance of each (delta_poc_sN_minus1 // is relative to the previous frame in the list, not relative to // the current frame directly). if (st->display_order < pic->display_order) { rps->delta_poc_s0_minus1[rps->num_negative_pics] = pic->display_order - st->display_order - 1; rps->used_by_curr_pic_s0_flag[rps->num_negative_pics] = used; ++rps->num_negative_pics; } else { rps->delta_poc_s1_minus1[rps->num_positive_pics] = st->display_order - pic->display_order - 1; rps->used_by_curr_pic_s1_flag[rps->num_positive_pics] = used; ++rps->num_positive_pics; } } sh->num_long_term_sps = 0; sh->num_long_term_pics = 0; sh->slice_temporal_mvp_enabled_flag = sps->sps_temporal_mvp_enabled_flag; if (sh->slice_temporal_mvp_enabled_flag) { sh->collocated_from_l0_flag = sh->slice_type == HEVC_SLICE_B; sh->collocated_ref_idx = 0; } sh->num_ref_idx_active_override_flag = 0; sh->num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1; sh->num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1; } sh->slice_sao_luma_flag = sh->slice_sao_chroma_flag = sps->sample_adaptive_offset_enabled_flag; if (pic->type == PICTURE_TYPE_B) sh->slice_qp_delta = priv->fixed_qp_b - (pps->init_qp_minus26 + 26); else if (pic->type == PICTURE_TYPE_P) sh->slice_qp_delta = priv->fixed_qp_p - (pps->init_qp_minus26 + 26); else sh->slice_qp_delta = priv->fixed_qp_idr - (pps->init_qp_minus26 + 26); *vslice = (VAEncSliceParameterBufferHEVC) { .slice_segment_address = sh->slice_segment_address, .num_ctu_in_slice = priv->ctu_width * priv->ctu_height, .slice_type = sh->slice_type, .slice_pic_parameter_set_id = sh->slice_pic_parameter_set_id, .num_ref_idx_l0_active_minus1 = sh->num_ref_idx_l0_active_minus1, .num_ref_idx_l1_active_minus1 = sh->num_ref_idx_l1_active_minus1, .ref_pic_list0[0] = vpic->reference_frames[0], .ref_pic_list1[0] = vpic->reference_frames[1], .luma_log2_weight_denom = sh->luma_log2_weight_denom, .delta_chroma_log2_weight_denom = sh->delta_chroma_log2_weight_denom, .max_num_merge_cand = 5 - sh->five_minus_max_num_merge_cand, .slice_qp_delta = sh->slice_qp_delta, .slice_cb_qp_offset = sh->slice_cb_qp_offset, .slice_cr_qp_offset = sh->slice_cr_qp_offset, .slice_beta_offset_div2 = sh->slice_beta_offset_div2, .slice_tc_offset_div2 = sh->slice_tc_offset_div2, .slice_fields.bits = { .last_slice_of_pic_flag = 1, .dependent_slice_segment_flag = sh->dependent_slice_segment_flag, .colour_plane_id = sh->colour_plane_id, .slice_temporal_mvp_enabled_flag = sh->slice_temporal_mvp_enabled_flag, .slice_sao_luma_flag = sh->slice_sao_luma_flag, .slice_sao_chroma_flag = sh->slice_sao_chroma_flag, .num_ref_idx_active_override_flag = sh->num_ref_idx_active_override_flag, .mvd_l1_zero_flag = sh->mvd_l1_zero_flag, .cabac_init_flag = sh->cabac_init_flag, .slice_deblocking_filter_disabled_flag = sh->slice_deblocking_filter_disabled_flag, .slice_loop_filter_across_slices_enabled_flag = sh->slice_loop_filter_across_slices_enabled_flag, .collocated_from_l0_flag = sh->collocated_from_l0_flag, }, }; return 0; } static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx) { VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH265Context *priv = ctx->priv_data; VAAPIEncodeH265Options *opt = ctx->codec_options; int err; err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_HEVC, avctx); if (err < 0) return err; priv->ctu_width = FFALIGN(ctx->surface_width, 32) / 32; priv->ctu_height = FFALIGN(ctx->surface_height, 32) / 32; av_log(avctx, AV_LOG_VERBOSE, "Input %ux%u -> Surface %ux%u -> CTU %ux%u.\n", avctx->width, avctx->height, ctx->surface_width, ctx->surface_height, priv->ctu_width, priv->ctu_height); if (ctx->va_rc_mode == VA_RC_CQP) { priv->fixed_qp_p = opt->qp; if (avctx->i_quant_factor > 0.0) priv->fixed_qp_idr = (int)((priv->fixed_qp_p * avctx->i_quant_factor + avctx->i_quant_offset) + 0.5); else priv->fixed_qp_idr = priv->fixed_qp_p; if (avctx->b_quant_factor > 0.0) priv->fixed_qp_b = (int)((priv->fixed_qp_p * avctx->b_quant_factor + avctx->b_quant_offset) + 0.5); else priv->fixed_qp_b = priv->fixed_qp_p; av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = " "%d / %d / %d for IDR- / P- / B-frames.\n", priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b); } else if (ctx->va_rc_mode == VA_RC_CBR || ctx->va_rc_mode == VA_RC_VBR) { // These still need to be set for pic_init_qp/slice_qp_delta. priv->fixed_qp_idr = 30; priv->fixed_qp_p = 30; priv->fixed_qp_b = 30; av_log(avctx, AV_LOG_DEBUG, "Using %s-bitrate = %"PRId64" bps.\n", ctx->va_rc_mode == VA_RC_CBR ? "constant" : "variable", avctx->bit_rate); } else { av_assert0(0 && "Invalid RC mode."); } return 0; } static const VAAPIEncodeType vaapi_encode_type_h265 = { .priv_data_size = sizeof(VAAPIEncodeH265Context), .configure = &vaapi_encode_h265_configure, .sequence_params_size = sizeof(VAEncSequenceParameterBufferHEVC), .init_sequence_params = &vaapi_encode_h265_init_sequence_params, .picture_params_size = sizeof(VAEncPictureParameterBufferHEVC), .init_picture_params = &vaapi_encode_h265_init_picture_params, .slice_params_size = sizeof(VAEncSliceParameterBufferHEVC), .init_slice_params = &vaapi_encode_h265_init_slice_params, .sequence_header_type = VAEncPackedHeaderSequence, .write_sequence_header = &vaapi_encode_h265_write_sequence_header, .slice_header_type = VAEncPackedHeaderHEVC_Slice, .write_slice_header = &vaapi_encode_h265_write_slice_header, }; static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx) { VAAPIEncodeContext *ctx = avctx->priv_data; ctx->codec = &vaapi_encode_type_h265; switch (avctx->profile) { case FF_PROFILE_HEVC_MAIN: case FF_PROFILE_UNKNOWN: ctx->va_profile = VAProfileHEVCMain; ctx->va_rt_format = VA_RT_FORMAT_YUV420; break; case FF_PROFILE_HEVC_MAIN_10: #ifdef VA_RT_FORMAT_YUV420_10BPP ctx->va_profile = VAProfileHEVCMain10; ctx->va_rt_format = VA_RT_FORMAT_YUV420_10BPP; break; #else av_log(avctx, AV_LOG_ERROR, "10-bit encoding is not " "supported with this VAAPI version.\n"); return AVERROR(ENOSYS); #endif default: av_log(avctx, AV_LOG_ERROR, "Unknown H.265 profile %d.\n", avctx->profile); return AVERROR(EINVAL); } ctx->va_entrypoint = VAEntrypointEncSlice; if (avctx->bit_rate > 0) { if (avctx->rc_max_rate == avctx->bit_rate) ctx->va_rc_mode = VA_RC_CBR; else ctx->va_rc_mode = VA_RC_VBR; } else ctx->va_rc_mode = VA_RC_CQP; ctx->va_packed_headers = VA_ENC_PACKED_HEADER_SEQUENCE | // VPS, SPS and PPS. VA_ENC_PACKED_HEADER_SLICE; // Slice headers. ctx->surface_width = FFALIGN(avctx->width, 16); ctx->surface_height = FFALIGN(avctx->height, 16); return ff_vaapi_encode_init(avctx); } static av_cold int vaapi_encode_h265_close(AVCodecContext *avctx) { VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH265Context *priv = ctx->priv_data; if (priv) ff_cbs_close(&priv->cbc); return ff_vaapi_encode_close(avctx); } #define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \ offsetof(VAAPIEncodeH265Options, x)) #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM) static const AVOption vaapi_encode_h265_options[] = { { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)", OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 25 }, 0, 52, FLAGS }, { "aud", "Include AUD", OFFSET(aud), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS }, { NULL }, }; static const AVCodecDefault vaapi_encode_h265_defaults[] = { { "profile", "1" }, { "level", "51" }, { "b", "0" }, { "bf", "2" }, { "g", "120" }, { "i_qfactor", "1" }, { "i_qoffset", "0" }, { "b_qfactor", "6/5" }, { "b_qoffset", "0" }, { NULL }, }; static const AVClass vaapi_encode_h265_class = { .class_name = "h265_vaapi", .item_name = av_default_item_name, .option = vaapi_encode_h265_options, .version = LIBAVUTIL_VERSION_INT, }; AVCodec ff_hevc_vaapi_encoder = { .name = "hevc_vaapi", .long_name = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"), .type = AVMEDIA_TYPE_VIDEO, .id = AV_CODEC_ID_HEVC, .priv_data_size = (sizeof(VAAPIEncodeContext) + sizeof(VAAPIEncodeH265Options)), .init = &vaapi_encode_h265_init, .encode2 = &ff_vaapi_encode2, .close = &vaapi_encode_h265_close, .priv_class = &vaapi_encode_h265_class, .capabilities = AV_CODEC_CAP_DELAY, .defaults = vaapi_encode_h265_defaults, .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_VAAPI, AV_PIX_FMT_NONE, }, };