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5fdcf85bbf
ffmpeg/libavcodec/vaapi_encode_h265.c
Mark Thompson 5fdcf85bbf vaapi_encode: Convert to send/receive API 
This attaches the logic of picking the mode of for the next picture to
the output, which simplifies some choices by removing the concept of
the picture for which input is not yet available.  At the same time,
we allow more complex reference structures and track more reference
metadata (particularly the contents of the DPB) for use in the
codec-specific code.

It also adds flags to explicitly track the available features of the
different codecs.  The new structure also allows open-GOP support, so
that is now available for codecs which can do it.
2019-01-23 23:04:11 +00:00

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45 KiB
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/*
* 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 <string.h>
#include <va/va.h>
#include <va/va_enc_hevc.h>
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "libavutil/mastering_display_metadata.h"
#include "avcodec.h"
#include "cbs.h"
#include "cbs_h265.h"
#include "h265_profile_level.h"
#include "hevc.h"
#include "hevc_sei.h"
#include "internal.h"
#include "put_bits.h"
#include "vaapi_encode.h"
enum {
SEI_MASTERING_DISPLAY = 0x08,
SEI_CONTENT_LIGHT_LEVEL = 0x10,
};
typedef struct VAAPIEncodeH265Context {
VAAPIEncodeContext common;
// User options.
int qp;
int aud;
int profile;
int tier;
int level;
int sei;
// Derived settings.
int fixed_qp_idr;
int fixed_qp_p;
int fixed_qp_b;
// Stream state.
int64_t last_idr_frame;
int pic_order_cnt;
int slice_nal_unit;
int slice_type;
int pic_type;
// Writer structures.
H265RawAUD raw_aud;
H265RawVPS raw_vps;
H265RawSPS raw_sps;
H265RawPPS raw_pps;
H265RawSEI raw_sei;
H265RawSlice raw_slice;
H265RawSEIMasteringDisplayColourVolume sei_mastering_display;
H265RawSEIContentLightLevelInfo sei_content_light_level;
CodedBitstreamContext *cbc;
CodedBitstreamFragment current_access_unit;
int aud_needed;
int sei_needed;
} VAAPIEncodeH265Context;
static int vaapi_encode_h265_write_access_unit(AVCodecContext *avctx,
char *data, size_t *data_len,
CodedBitstreamFragment *au)
{
VAAPIEncodeH265Context *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 vaapi_encode_h265_add_nal(AVCodecContext *avctx,
CodedBitstreamFragment *au,
void *nal_unit)
{
VAAPIEncodeH265Context *priv = avctx->priv_data;
H265RawNALUnitHeader *header = nal_unit;
int err;
err = ff_cbs_insert_unit_content(priv->cbc, 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 vaapi_encode_h265_write_sequence_header(AVCodecContext *avctx,
char *data, size_t *data_len)
{
VAAPIEncodeH265Context *priv = avctx->priv_data;
CodedBitstreamFragment *au = &priv->current_access_unit;
int err;
if (priv->aud_needed) {
err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_aud);
if (err < 0)
goto fail;
priv->aud_needed = 0;
}
err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_vps);
if (err < 0)
goto fail;
err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_sps);
if (err < 0)
goto fail;
err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_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)
{
VAAPIEncodeH265Context *priv = avctx->priv_data;
CodedBitstreamFragment *au = &priv->current_access_unit;
int err;
if (priv->aud_needed) {
err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_aud);
if (err < 0)
goto fail;
priv->aud_needed = 0;
}
err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_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_write_extra_header(AVCodecContext *avctx,
VAAPIEncodePicture *pic,
int index, int *type,
char *data, size_t *data_len)
{
VAAPIEncodeH265Context *priv = avctx->priv_data;
CodedBitstreamFragment *au = &priv->current_access_unit;
int err, i;
if (priv->sei_needed) {
H265RawSEI *sei = &priv->raw_sei;
if (priv->aud_needed) {
err = vaapi_encode_h265_add_nal(avctx, au, &priv->aud);
if (err < 0)
goto fail;
priv->aud_needed = 0;
}
*sei = (H265RawSEI) {
.nal_unit_header = {
.nal_unit_type = HEVC_NAL_SEI_PREFIX,
.nuh_layer_id = 0,
.nuh_temporal_id_plus1 = 1,
},
};
i = 0;
if (priv->sei_needed & SEI_MASTERING_DISPLAY) {
sei->payload[i].payload_type = HEVC_SEI_TYPE_MASTERING_DISPLAY_INFO;
sei->payload[i].payload.mastering_display = priv->sei_mastering_display;
++i;
}
if (priv->sei_needed & SEI_CONTENT_LIGHT_LEVEL) {
sei->payload[i].payload_type = HEVC_SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO;
sei->payload[i].payload.content_light_level = priv->sei_content_light_level;
++i;
}
sei->payload_count = i;
av_assert0(sei->payload_count > 0);
err = vaapi_encode_h265_add_nal(avctx, au, sei);
if (err < 0)
goto fail;
priv->sei_needed = 0;
err = vaapi_encode_h265_write_access_unit(avctx, data, data_len, au);
if (err < 0)
goto fail;
ff_cbs_fragment_uninit(priv->cbc, au);
*type = VAEncPackedHeaderRawData;
return 0;
} else {
return AVERROR_EOF;
}
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 = avctx->priv_data;
H265RawVPS *vps = &priv->raw_vps;
H265RawSPS *sps = &priv->raw_sps;
H265RawPPS *pps = &priv->raw_pps;
H265RawProfileTierLevel *ptl = &vps->profile_tier_level;
H265RawVUI *vui = &sps->vui;
VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params;
VAEncPictureParameterBufferHEVC *vpic = ctx->codec_picture_params;
const AVPixFmtDescriptor *desc;
int chroma_format, bit_depth;
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));
desc = av_pix_fmt_desc_get(priv->common.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 = priv->tier;
if (chroma_format == 1) {
ptl->general_profile_compatibility_flag[1] = bit_depth == 8;
ptl->general_profile_compatibility_flag[2] = bit_depth <= 10;
}
ptl->general_profile_compatibility_flag[4] = 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_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 = ctx->gop_size == 1;
ptl->general_lower_bit_rate_constraint_flag = 1;
if (avctx->level != FF_LEVEL_UNKNOWN) {
ptl->general_level_idc = avctx->level;
} else {
const H265LevelDescriptor *level;
level = ff_h265_guess_level(ptl, avctx->bit_rate,
ctx->surface_width, ctx->surface_height,
ctx->nb_slices, 1, 1,
(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] = (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 = chroma_format;
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 = 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 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 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(sar_idc); i++) {
if (num == sar_idc[i].num &&
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 = num;
vui->sar_height = 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 = ctx->gop_size,
.intra_idr_period = ctx->gop_size,
.ip_period = ctx->b_per_p + 1,
.bits_per_second = ctx->va_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)
{
VAAPIEncodeH265Context *priv = avctx->priv_data;
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 (priv->aud) {
priv->aud_needed = 1;
priv->raw_aud = (H265RawAUD) {
.nal_unit_header = {
.nal_unit_type = HEVC_NAL_AUD,
.nuh_layer_id = 0,
.nuh_temporal_id_plus1 = 1,
},
.pic_type = priv->pic_type,
};
} else {
priv->aud_needed = 0;
}
priv->sei_needed = 0;
// Only look for the metadata on I/IDR frame on the output. We
// may force an IDR frame on the output where the medadata gets
// changed on the input frame.
if ((priv->sei & SEI_MASTERING_DISPLAY) &&
(pic->type == PICTURE_TYPE_I || pic->type == PICTURE_TYPE_IDR)) {
AVFrameSideData *sd =
av_frame_get_side_data(pic->input_image,
AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);
if (sd) {
AVMasteringDisplayMetadata *mdm =
(AVMasteringDisplayMetadata *)sd->data;
// SEI is needed when both the primaries and luminance are set
if (mdm->has_primaries && mdm->has_luminance) {
H265RawSEIMasteringDisplayColourVolume *mdcv =
&priv->sei_mastering_display;
const int mapping[3] = {1, 2, 0};
const int chroma_den = 50000;
const int luma_den = 10000;
for (i = 0; i < 3; i++) {
const int j = mapping[i];
mdcv->display_primaries_x[i] =
FFMIN(lrint(chroma_den *
av_q2d(mdm->display_primaries[j][0])),
chroma_den);
mdcv->display_primaries_y[i] =
FFMIN(lrint(chroma_den *
av_q2d(mdm->display_primaries[j][1])),
chroma_den);
}
mdcv->white_point_x =
FFMIN(lrint(chroma_den * av_q2d(mdm->white_point[0])),
chroma_den);
mdcv->white_point_y =
FFMIN(lrint(chroma_den * av_q2d(mdm->white_point[1])),
chroma_den);
mdcv->max_display_mastering_luminance =
lrint(luma_den * av_q2d(mdm->max_luminance));
mdcv->min_display_mastering_luminance =
FFMIN(lrint(luma_den * av_q2d(mdm->min_luminance)),
mdcv->max_display_mastering_luminance);
priv->sei_needed |= SEI_MASTERING_DISPLAY;
}
}
}
if ((priv->sei & SEI_CONTENT_LIGHT_LEVEL) &&
(pic->type == PICTURE_TYPE_I || pic->type == PICTURE_TYPE_IDR)) {
AVFrameSideData *sd =
av_frame_get_side_data(pic->input_image,
AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);
if (sd) {
AVContentLightMetadata *clm =
(AVContentLightMetadata *)sd->data;
H265RawSEIContentLightLevelInfo *clli =
&priv->sei_content_light_level;
clli->max_content_light_level = FFMIN(clm->MaxCLL, 65535);
clli->max_pic_average_light_level = FFMIN(clm->MaxFALL, 65535);
priv->sei_needed |= SEI_CONTENT_LIGHT_LEVEL;
}
}
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");
}
return 0;
}
static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,
VAAPIEncodePicture *pic,
VAAPIEncodeSlice *slice)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeH265Context *priv = avctx->priv_data;
const H265RawSPS *sps = &priv->raw_sps;
const H265RawPPS *pps = &priv->raw_pps;
H265RawSliceHeader *sh = &priv->raw_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;
sh->first_slice_segment_in_pic_flag = slice->index == 0;
sh->slice_segment_address = slice->block_start;
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 = slice->block_size,
.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,
.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 = slice->index == pic->nb_slices - 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,
},
};
for (i = 0; i < FF_ARRAY_ELEMS(vslice->ref_pic_list0); i++) {
vslice->ref_pic_list0[i].picture_id = VA_INVALID_ID;
vslice->ref_pic_list0[i].flags = VA_PICTURE_HEVC_INVALID;
vslice->ref_pic_list1[i].picture_id = VA_INVALID_ID;
vslice->ref_pic_list1[i].flags = VA_PICTURE_HEVC_INVALID;
}
av_assert0(pic->nb_refs <= 2);
if (pic->nb_refs >= 1) {
// Backward reference for P- or B-frame.
av_assert0(pic->type == PICTURE_TYPE_P ||
pic->type == PICTURE_TYPE_B);
vslice->ref_pic_list0[0] = vpic->reference_frames[0];
}
if (pic->nb_refs >= 2) {
// Forward reference for B-frame.
av_assert0(pic->type == PICTURE_TYPE_B);
vslice->ref_pic_list1[0] = vpic->reference_frames[1];
}
return 0;
}
static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeH265Context *priv = avctx->priv_data;
int err;
err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_HEVC, avctx);
if (err < 0)
return err;
if (ctx->va_rc_mode == VA_RC_CQP) {
priv->fixed_qp_p = priv->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;
} else {
av_assert0(0 && "Invalid RC mode.");
}
return 0;
}
static const VAAPIEncodeProfile vaapi_encode_h265_profiles[] = {
{ FF_PROFILE_HEVC_MAIN, 8, 3, 1, 1, VAProfileHEVCMain },
{ FF_PROFILE_HEVC_REXT, 8, 3, 1, 1, VAProfileHEVCMain },
#if VA_CHECK_VERSION(0, 37, 0)
{ FF_PROFILE_HEVC_MAIN_10, 10, 3, 1, 1, VAProfileHEVCMain10 },
{ FF_PROFILE_HEVC_REXT, 10, 3, 1, 1, VAProfileHEVCMain10 },
#endif
{ FF_PROFILE_UNKNOWN }
};
static const VAAPIEncodeType vaapi_encode_type_h265 = {
.profiles = vaapi_encode_h265_profiles,
.flags = FLAG_SLICE_CONTROL |
FLAG_B_PICTURES |
FLAG_NON_IDR_KEY_PICTURES,
.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,
.write_extra_header = &vaapi_encode_h265_write_extra_header,
};
static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeH265Context *priv = avctx->priv_data;
ctx->codec = &vaapi_encode_type_h265;
if (avctx->profile == FF_PROFILE_UNKNOWN)
avctx->profile = priv->profile;
if (avctx->level == FF_LEVEL_UNKNOWN)
avctx->level = priv->level;
if (avctx->level != FF_LEVEL_UNKNOWN && avctx->level & ~0xff) {
av_log(avctx, AV_LOG_ERROR, "Invalid level %d: must fit "
"in 8-bit unsigned integer.\n", avctx->level);
return AVERROR(EINVAL);
}
ctx->desired_packed_headers =
VA_ENC_PACKED_HEADER_SEQUENCE | // VPS, SPS and PPS.
VA_ENC_PACKED_HEADER_SLICE | // Slice headers.
VA_ENC_PACKED_HEADER_MISC; // SEI
ctx->surface_width = FFALIGN(avctx->width, 16);
ctx->surface_height = FFALIGN(avctx->height, 16);
// CTU size is currently hard-coded to 32.
ctx->slice_block_width = ctx->slice_block_height = 32;
return ff_vaapi_encode_init(avctx);
}
static av_cold int vaapi_encode_h265_close(AVCodecContext *avctx)
{
VAAPIEncodeH265Context *priv = avctx->priv_data;
ff_cbs_close(&priv->cbc);
return ff_vaapi_encode_close(avctx);
}
#define OFFSET(x) offsetof(VAAPIEncodeH265Context, x)
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
static const AVOption vaapi_encode_h265_options[] = {
VAAPI_ENCODE_COMMON_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_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
{ "profile", "Set profile (general_profile_idc)",
OFFSET(profile), AV_OPT_TYPE_INT,
{ .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xff, FLAGS, "profile" },
#define PROFILE(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
{ .i64 = value }, 0, 0, FLAGS, "profile"
{ PROFILE("main", FF_PROFILE_HEVC_MAIN) },
{ PROFILE("main10", FF_PROFILE_HEVC_MAIN_10) },
{ PROFILE("rext", FF_PROFILE_HEVC_REXT) },
#undef PROFILE
{ "tier", "Set tier (general_tier_flag)",
OFFSET(tier), AV_OPT_TYPE_INT,
{ .i64 = 0 }, 0, 1, FLAGS, "tier" },
{ "main", NULL, 0, AV_OPT_TYPE_CONST,
{ .i64 = 0 }, 0, 0, FLAGS, "tier" },
{ "high", NULL, 0, AV_OPT_TYPE_CONST,
{ .i64 = 1 }, 0, 0, FLAGS, "tier" },
{ "level", "Set level (general_level_idc)",
OFFSET(level), AV_OPT_TYPE_INT,
{ .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },
#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
{ .i64 = value }, 0, 0, FLAGS, "level"
{ LEVEL("1", 30) },
{ LEVEL("2", 60) },
{ LEVEL("2.1", 63) },
{ LEVEL("3", 90) },
{ LEVEL("3.1", 93) },
{ LEVEL("4", 120) },
{ LEVEL("4.1", 123) },
{ LEVEL("5", 150) },
{ LEVEL("5.1", 153) },
{ LEVEL("5.2", 156) },
{ LEVEL("6", 180) },
{ LEVEL("6.1", 183) },
{ LEVEL("6.2", 186) },
#undef LEVEL
{ "sei", "Set SEI to include",
OFFSET(sei), AV_OPT_TYPE_FLAGS,
{ .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },
0, INT_MAX, FLAGS, "sei" },
{ "hdr",
"Include HDR metadata for mastering display colour volume "
"and content light level information",
0, AV_OPT_TYPE_CONST,
{ .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },
INT_MIN, INT_MAX, FLAGS, "sei" },
{ NULL },
};
static const AVCodecDefault vaapi_encode_h265_defaults[] = {
{ "b", "0" },
{ "bf", "2" },
{ "g", "120" },
{ "i_qfactor", "1" },
{ "i_qoffset", "0" },
{ "b_qfactor", "6/5" },
{ "b_qoffset", "0" },
{ "qmin", "-1" },
{ "qmax", "-1" },
{ 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(VAAPIEncodeH265Context),
.init = &vaapi_encode_h265_init,
.send_frame = &ff_vaapi_encode_send_frame,
.receive_packet = &ff_vaapi_encode_receive_packet,
.close = &vaapi_encode_h265_close,
.priv_class = &vaapi_encode_h265_class,
.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,
.defaults = vaapi_encode_h265_defaults,
.pix_fmts = (const enum AVPixelFormat[]) {
AV_PIX_FMT_VAAPI,
AV_PIX_FMT_NONE,
},
.wrapper_name = "vaapi",
};
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