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FFmpeg/libavcodec/vaapi_encode_h264.c

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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_h264.h>
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/mem.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "atsc_a53.h"
#include "avcodec.h"
#include "cbs.h"
#include "cbs_h264.h"
#include "codec_internal.h"
#include "h264.h"
#include "hw_base_encode_h264.h"
#include "h264_levels.h"
#include "h2645data.h"
#include "vaapi_encode.h"
#include "version.h"
enum {
SEI_TIMING = 0x01,
SEI_IDENTIFIER = 0x02,
SEI_RECOVERY_POINT = 0x04,
SEI_A53_CC = 0x08,
};
// Random (version 4) ISO 11578 UUID.
static const uint8_t vaapi_encode_h264_sei_identifier_uuid[16] = {
0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf,
0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,
};
typedef struct VAAPIEncodeH264Picture {
int frame_num;
int pic_order_cnt;
int64_t last_idr_frame;
uint16_t idr_pic_id;
int primary_pic_type;
int slice_type;
int cpb_delay;
int dpb_delay;
} VAAPIEncodeH264Picture;
typedef struct VAAPIEncodeH264Context {
VAAPIEncodeContext common;
FFHWBaseEncodeH264 units;
// User options.
int qp;
int quality;
int coder;
int aud;
int sei;
int profile;
int level;
// Derived settings.
int mb_width;
int mb_height;
int fixed_qp_idr;
int fixed_qp_p;
int fixed_qp_b;
// Writer structures.
CodedBitstreamContext *cbc;
CodedBitstreamFragment current_access_unit;
H264RawAUD raw_aud;
H264RawSlice raw_slice;
H264RawSEIPicTiming sei_pic_timing;
H264RawSEIRecoveryPoint sei_recovery_point;
SEIRawUserDataUnregistered sei_identifier;
char *sei_identifier_string;
SEIRawUserDataRegistered sei_a53cc;
void *sei_a53cc_data;
int aud_needed;
int sei_needed;
int sei_cbr_workaround_needed;
} VAAPIEncodeH264Context;
static int vaapi_encode_h264_write_access_unit(AVCodecContext *avctx,
char *data, size_t *data_len,
CodedBitstreamFragment *au)
{
VAAPIEncodeH264Context *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_h264_add_nal(AVCodecContext *avctx,
CodedBitstreamFragment *au,
void *nal_unit)
{
H264RawNALUnitHeader *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 vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,
char *data, size_t *data_len)
{
VAAPIEncodeH264Context *priv = avctx->priv_data;
CodedBitstreamFragment *au = &priv->current_access_unit;
int err;
if (priv->aud_needed) {
err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud);
if (err < 0)
goto fail;
priv->aud_needed = 0;
}
err = vaapi_encode_h264_add_nal(avctx, au, &priv->units.raw_sps);
if (err < 0)
goto fail;
err = vaapi_encode_h264_add_nal(avctx, au, &priv->units.raw_pps);
if (err < 0)
goto fail;
err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
fail:
ff_cbs_fragment_reset(au);
return err;
}
static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx,
VAAPIEncodePicture *pic,
VAAPIEncodeSlice *slice,
char *data, size_t *data_len)
{
VAAPIEncodeH264Context *priv = avctx->priv_data;
CodedBitstreamFragment *au = &priv->current_access_unit;
int err;
if (priv->aud_needed) {
err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud);
if (err < 0)
goto fail;
priv->aud_needed = 0;
}
err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_slice);
if (err < 0)
goto fail;
err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
fail:
ff_cbs_fragment_reset(au);
return err;
}
static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,
FFHWBaseEncodePicture *base,
int index, int *type,
char *data, size_t *data_len)
{
VAAPIEncodeH264Context *priv = avctx->priv_data;
CodedBitstreamFragment *au = &priv->current_access_unit;
int err;
if (priv->sei_needed) {
if (priv->aud_needed) {
err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud);
if (err < 0)
goto fail;
priv->aud_needed = 0;
}
if (priv->sei_needed & SEI_IDENTIFIER) {
err = ff_cbs_sei_add_message(priv->cbc, au, 1,
SEI_TYPE_USER_DATA_UNREGISTERED,
&priv->sei_identifier, NULL);
if (err < 0)
goto fail;
}
if (priv->sei_needed & SEI_TIMING) {
if (base->type == FF_HW_PICTURE_TYPE_IDR) {
err = ff_cbs_sei_add_message(priv->cbc, au, 1,
SEI_TYPE_BUFFERING_PERIOD,
&priv->units.sei_buffering_period, NULL);
if (err < 0)
goto fail;
}
err = ff_cbs_sei_add_message(priv->cbc, au, 1,
SEI_TYPE_PIC_TIMING,
&priv->sei_pic_timing, NULL);
if (err < 0)
goto fail;
}
if (priv->sei_needed & SEI_RECOVERY_POINT) {
err = ff_cbs_sei_add_message(priv->cbc, au, 1,
SEI_TYPE_RECOVERY_POINT,
&priv->sei_recovery_point, NULL);
if (err < 0)
goto fail;
}
if (priv->sei_needed & SEI_A53_CC) {
err = ff_cbs_sei_add_message(priv->cbc, au, 1,
SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35,
&priv->sei_a53cc, NULL);
if (err < 0)
goto fail;
}
priv->sei_needed = 0;
err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
if (err < 0)
goto fail;
ff_cbs_fragment_reset(au);
*type = VAEncPackedHeaderRawData;
return 0;
#if !CONFIG_VAAPI_1
} else if (priv->sei_cbr_workaround_needed) {
// Insert a zero-length header using the old SEI type. This is
// required to avoid triggering broken behaviour on Intel platforms
// in CBR mode where an invalid SEI message is generated by the
// driver and inserted into the stream.
*data_len = 0;
*type = VAEncPackedHeaderH264_SEI;
priv->sei_cbr_workaround_needed = 0;
return 0;
#endif
} else {
return AVERROR_EOF;
}
fail:
ff_cbs_fragment_reset(au);
return err;
}
static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
{
FFHWBaseEncodeContext *base_ctx = avctx->priv_data;
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeH264Context *priv = avctx->priv_data;
H264RawSPS *sps = &priv->units.raw_sps;
H264RawPPS *pps = &priv->units.raw_pps;
VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params;
FFHWBaseEncodeH264Opts unit_opts = {
.flags = (priv->sei & SEI_TIMING) ? FF_HW_H264_SEI_TIMING : 0,
.mb_width = priv->mb_width,
.mb_height = priv->mb_height,
.cabac = priv->coder,
.hrd_buffer_size = ctx->hrd_params.buffer_size,
.fixed_qp_idr = priv->fixed_qp_idr,
.initial_buffer_fullness = ctx->hrd_params.initial_buffer_fullness,
.bit_rate = ctx->va_bit_rate,
};
int err = ff_hw_base_encode_init_params_h264(base_ctx, avctx,
&priv->units, &unit_opts);
if (err < 0)
return err;
*vseq = (VAEncSequenceParameterBufferH264) {
.seq_parameter_set_id = sps->seq_parameter_set_id,
.level_idc = sps->level_idc,
.intra_period = base_ctx->gop_size,
.intra_idr_period = base_ctx->gop_size,
.ip_period = base_ctx->b_per_p + 1,
.bits_per_second = ctx->va_bit_rate,
.max_num_ref_frames = sps->max_num_ref_frames,
.picture_width_in_mbs = sps->pic_width_in_mbs_minus1 + 1,
.picture_height_in_mbs = sps->pic_height_in_map_units_minus1 + 1,
.seq_fields.bits = {
.chroma_format_idc = sps->chroma_format_idc,
.frame_mbs_only_flag = sps->frame_mbs_only_flag,
.mb_adaptive_frame_field_flag = sps->mb_adaptive_frame_field_flag,
.seq_scaling_matrix_present_flag = sps->seq_scaling_matrix_present_flag,
.direct_8x8_inference_flag = sps->direct_8x8_inference_flag,
.log2_max_frame_num_minus4 = sps->log2_max_frame_num_minus4,
.pic_order_cnt_type = sps->pic_order_cnt_type,
.log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,
.delta_pic_order_always_zero_flag = sps->delta_pic_order_always_zero_flag,
},
.bit_depth_luma_minus8 = sps->bit_depth_luma_minus8,
.bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,
.frame_cropping_flag = sps->frame_cropping_flag,
.frame_crop_left_offset = sps->frame_crop_left_offset,
.frame_crop_right_offset = sps->frame_crop_right_offset,
.frame_crop_top_offset = sps->frame_crop_top_offset,
.frame_crop_bottom_offset = sps->frame_crop_bottom_offset,
.vui_parameters_present_flag = sps->vui_parameters_present_flag,
.vui_fields.bits = {
.aspect_ratio_info_present_flag = sps->vui.aspect_ratio_info_present_flag,
.timing_info_present_flag = sps->vui.timing_info_present_flag,
.bitstream_restriction_flag = sps->vui.bitstream_restriction_flag,
.log2_max_mv_length_horizontal = sps->vui.log2_max_mv_length_horizontal,
.log2_max_mv_length_vertical = sps->vui.log2_max_mv_length_vertical,
},
.aspect_ratio_idc = sps->vui.aspect_ratio_idc,
.sar_width = sps->vui.sar_width,
.sar_height = sps->vui.sar_height,
.num_units_in_tick = sps->vui.num_units_in_tick,
.time_scale = sps->vui.time_scale,
};
*vpic = (VAEncPictureParameterBufferH264) {
.CurrPic = {
.picture_id = VA_INVALID_ID,
.flags = VA_PICTURE_H264_INVALID,
},
.coded_buf = VA_INVALID_ID,
.pic_parameter_set_id = pps->pic_parameter_set_id,
.seq_parameter_set_id = pps->seq_parameter_set_id,
.pic_init_qp = pps->pic_init_qp_minus26 + 26,
.num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,
.num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,
.chroma_qp_index_offset = pps->chroma_qp_index_offset,
.second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,
.pic_fields.bits = {
.entropy_coding_mode_flag = pps->entropy_coding_mode_flag,
.weighted_pred_flag = pps->weighted_pred_flag,
.weighted_bipred_idc = pps->weighted_bipred_idc,
.constrained_intra_pred_flag = pps->constrained_intra_pred_flag,
.transform_8x8_mode_flag = pps->transform_8x8_mode_flag,
.deblocking_filter_control_present_flag =
pps->deblocking_filter_control_present_flag,
.redundant_pic_cnt_present_flag = pps->redundant_pic_cnt_present_flag,
.pic_order_present_flag =
pps->bottom_field_pic_order_in_frame_present_flag,
.pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,
},
};
return 0;
}
static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,
FFHWBaseEncodePicture *pic)
{
FFHWBaseEncodeContext *base_ctx = avctx->priv_data;
#if !CONFIG_VAAPI_1
VAAPIEncodeContext *ctx = avctx->priv_data;
#endif
VAAPIEncodeH264Context *priv = avctx->priv_data;
VAAPIEncodePicture *vaapi_pic = pic->priv;
VAAPIEncodeH264Picture *hpic = pic->codec_priv;
FFHWBaseEncodePicture *prev = pic->prev;
VAAPIEncodeH264Picture *hprev = prev ? prev->codec_priv : NULL;
VAEncPictureParameterBufferH264 *vpic = vaapi_pic->codec_picture_params;
int i, j = 0;
if (pic->type == FF_HW_PICTURE_TYPE_IDR) {
av_assert0(pic->display_order == pic->encode_order);
hpic->frame_num = 0;
hpic->last_idr_frame = pic->display_order;
hpic->idr_pic_id = hprev ? hprev->idr_pic_id + 1 : 0;
hpic->primary_pic_type = 0;
hpic->slice_type = 7;
} else {
av_assert0(prev);
hpic->frame_num = hprev->frame_num + prev->is_reference;
hpic->last_idr_frame = hprev->last_idr_frame;
hpic->idr_pic_id = hprev->idr_pic_id;
if (pic->type == FF_HW_PICTURE_TYPE_I) {
hpic->slice_type = 7;
hpic->primary_pic_type = 0;
} else if (pic->type == FF_HW_PICTURE_TYPE_P) {
hpic->slice_type = 5;
hpic->primary_pic_type = 1;
} else {
hpic->slice_type = 6;
hpic->primary_pic_type = 2;
}
}
hpic->pic_order_cnt = pic->display_order - hpic->last_idr_frame;
if (priv->units.raw_sps.pic_order_cnt_type == 2) {
hpic->pic_order_cnt *= 2;
}
hpic->dpb_delay = pic->display_order - pic->encode_order + base_ctx->max_b_depth;
hpic->cpb_delay = pic->encode_order - hpic->last_idr_frame;
if (priv->aud) {
priv->aud_needed = 1;
priv->raw_aud = (H264RawAUD) {
.nal_unit_header = {
.nal_unit_type = H264_NAL_AUD,
},
.primary_pic_type = hpic->primary_pic_type,
};
} else {
priv->aud_needed = 0;
}
priv->sei_needed = 0;
if (priv->sei & SEI_IDENTIFIER && pic->encode_order == 0)
priv->sei_needed |= SEI_IDENTIFIER;
#if !CONFIG_VAAPI_1
if (ctx->va_rc_mode == VA_RC_CBR)
priv->sei_cbr_workaround_needed = 1;
#endif
if (priv->sei & SEI_TIMING) {
priv->sei_pic_timing = (H264RawSEIPicTiming) {
.cpb_removal_delay = 2 * hpic->cpb_delay,
.dpb_output_delay = 2 * hpic->dpb_delay,
};
priv->sei_needed |= SEI_TIMING;
}
if (priv->sei & SEI_RECOVERY_POINT && pic->type == FF_HW_PICTURE_TYPE_I) {
priv->sei_recovery_point = (H264RawSEIRecoveryPoint) {
.recovery_frame_cnt = 0,
.exact_match_flag = 1,
.broken_link_flag = base_ctx->b_per_p > 0,
};
priv->sei_needed |= SEI_RECOVERY_POINT;
}
if (priv->sei & SEI_A53_CC) {
int err;
size_t sei_a53cc_len;
av_freep(&priv->sei_a53cc_data);
err = ff_alloc_a53_sei(pic->input_image, 0, &priv->sei_a53cc_data, &sei_a53cc_len);
if (err < 0)
return err;
if (priv->sei_a53cc_data != NULL) {
priv->sei_a53cc.itu_t_t35_country_code = 181;
priv->sei_a53cc.data = (uint8_t *)priv->sei_a53cc_data + 1;
priv->sei_a53cc.data_length = sei_a53cc_len - 1;
priv->sei_needed |= SEI_A53_CC;
}
}
vpic->CurrPic = (VAPictureH264) {
.picture_id = vaapi_pic->recon_surface,
.frame_idx = hpic->frame_num,
.flags = 0,
.TopFieldOrderCnt = hpic->pic_order_cnt,
.BottomFieldOrderCnt = hpic->pic_order_cnt,
};
for (int k = 0; k < MAX_REFERENCE_LIST_NUM; k++) {
for (i = 0; i < pic->nb_refs[k]; i++) {
FFHWBaseEncodePicture *ref = pic->refs[k][i];
VAAPIEncodeH264Picture *href;
av_assert0(ref && ref->encode_order < pic->encode_order);
href = ref->codec_priv;
vpic->ReferenceFrames[j++] = (VAPictureH264) {
.picture_id = ((VAAPIEncodePicture *)ref->priv)->recon_surface,
.frame_idx = href->frame_num,
.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE,
.TopFieldOrderCnt = href->pic_order_cnt,
.BottomFieldOrderCnt = href->pic_order_cnt,
};
}
}
for (; j < FF_ARRAY_ELEMS(vpic->ReferenceFrames); j++) {
vpic->ReferenceFrames[j] = (VAPictureH264) {
.picture_id = VA_INVALID_ID,
.flags = VA_PICTURE_H264_INVALID,
};
}
vpic->coded_buf = vaapi_pic->output_buffer;
vpic->frame_num = hpic->frame_num;
vpic->pic_fields.bits.idr_pic_flag = (pic->type == FF_HW_PICTURE_TYPE_IDR);
vpic->pic_fields.bits.reference_pic_flag = pic->is_reference;
return 0;
}
static void vaapi_encode_h264_default_ref_pic_list(AVCodecContext *avctx,
FFHWBaseEncodePicture *pic,
FFHWBaseEncodePicture **rpl0,
FFHWBaseEncodePicture **rpl1,
int *rpl_size)
{
FFHWBaseEncodePicture *prev;
VAAPIEncodeH264Picture *hp, *hn, *hc;
int i, j, n = 0;
prev = pic->prev;
av_assert0(prev);
hp = pic->codec_priv;
for (i = 0; i < pic->prev->nb_dpb_pics; i++) {
hn = prev->dpb[i]->codec_priv;
av_assert0(hn->frame_num < hp->frame_num);
if (pic->type == FF_HW_PICTURE_TYPE_P) {
for (j = n; j > 0; j--) {
hc = rpl0[j - 1]->codec_priv;
av_assert0(hc->frame_num != hn->frame_num);
if (hc->frame_num > hn->frame_num)
break;
rpl0[j] = rpl0[j - 1];
}
rpl0[j] = prev->dpb[i];
} else if (pic->type == FF_HW_PICTURE_TYPE_B) {
for (j = n; j > 0; j--) {
hc = rpl0[j - 1]->codec_priv;
av_assert0(hc->pic_order_cnt != hp->pic_order_cnt);
if (hc->pic_order_cnt < hp->pic_order_cnt) {
if (hn->pic_order_cnt > hp->pic_order_cnt ||
hn->pic_order_cnt < hc->pic_order_cnt)
break;
} else {
if (hn->pic_order_cnt > hc->pic_order_cnt)
break;
}
rpl0[j] = rpl0[j - 1];
}
rpl0[j] = prev->dpb[i];
for (j = n; j > 0; j--) {
hc = rpl1[j - 1]->codec_priv;
av_assert0(hc->pic_order_cnt != hp->pic_order_cnt);
if (hc->pic_order_cnt > hp->pic_order_cnt) {
if (hn->pic_order_cnt < hp->pic_order_cnt ||
hn->pic_order_cnt > hc->pic_order_cnt)
break;
} else {
if (hn->pic_order_cnt < hc->pic_order_cnt)
break;
}
rpl1[j] = rpl1[j - 1];
}
rpl1[j] = prev->dpb[i];
}
++n;
}
if (pic->type == FF_HW_PICTURE_TYPE_B) {
for (i = 0; i < n; i++) {
if (rpl0[i] != rpl1[i])
break;
}
if (i == n)
FFSWAP(FFHWBaseEncodePicture *, rpl1[0], rpl1[1]);
}
if (pic->type == FF_HW_PICTURE_TYPE_P ||
pic->type == FF_HW_PICTURE_TYPE_B) {
av_log(avctx, AV_LOG_DEBUG, "Default RefPicList0 for fn=%d/poc=%d:",
hp->frame_num, hp->pic_order_cnt);
for (i = 0; i < n; i++) {
hn = rpl0[i]->codec_priv;
av_log(avctx, AV_LOG_DEBUG, " fn=%d/poc=%d",
hn->frame_num, hn->pic_order_cnt);
}
av_log(avctx, AV_LOG_DEBUG, "\n");
}
if (pic->type == FF_HW_PICTURE_TYPE_B) {
av_log(avctx, AV_LOG_DEBUG, "Default RefPicList1 for fn=%d/poc=%d:",
hp->frame_num, hp->pic_order_cnt);
for (i = 0; i < n; i++) {
hn = rpl1[i]->codec_priv;
av_log(avctx, AV_LOG_DEBUG, " fn=%d/poc=%d",
hn->frame_num, hn->pic_order_cnt);
}
av_log(avctx, AV_LOG_DEBUG, "\n");
}
*rpl_size = n;
}
static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,
FFHWBaseEncodePicture *pic,
VAAPIEncodeSlice *slice)
{
VAAPIEncodeH264Context *priv = avctx->priv_data;
VAAPIEncodePicture *vaapi_pic = pic->priv;
VAAPIEncodeH264Picture *hpic = pic->codec_priv;
FFHWBaseEncodePicture *prev = pic->prev;
H264RawSPS *sps = &priv->units.raw_sps;
H264RawPPS *pps = &priv->units.raw_pps;
H264RawSliceHeader *sh = &priv->raw_slice.header;
VAEncPictureParameterBufferH264 *vpic = vaapi_pic->codec_picture_params;
VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
int i, j;
if (pic->type == FF_HW_PICTURE_TYPE_IDR) {
sh->nal_unit_header.nal_unit_type = H264_NAL_IDR_SLICE;
sh->nal_unit_header.nal_ref_idc = 3;
} else {
sh->nal_unit_header.nal_unit_type = H264_NAL_SLICE;
sh->nal_unit_header.nal_ref_idc = pic->is_reference;
}
sh->first_mb_in_slice = slice->block_start;
sh->slice_type = hpic->slice_type;
sh->pic_parameter_set_id = pps->pic_parameter_set_id;
sh->frame_num = hpic->frame_num &
((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);
sh->idr_pic_id = hpic->idr_pic_id;
sh->pic_order_cnt_lsb = hpic->pic_order_cnt &
((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);
sh->direct_spatial_mv_pred_flag = 1;
if (pic->type == FF_HW_PICTURE_TYPE_B)
sh->slice_qp_delta = priv->fixed_qp_b - (pps->pic_init_qp_minus26 + 26);
else if (pic->type == FF_HW_PICTURE_TYPE_P)
sh->slice_qp_delta = priv->fixed_qp_p - (pps->pic_init_qp_minus26 + 26);
else
sh->slice_qp_delta = priv->fixed_qp_idr - (pps->pic_init_qp_minus26 + 26);
if (pic->is_reference && pic->type != FF_HW_PICTURE_TYPE_IDR) {
FFHWBaseEncodePicture *discard_list[MAX_DPB_SIZE];
int discard = 0, keep = 0;
// Discard everything which is in the DPB of the previous frame but
// not in the DPB of this one.
for (i = 0; i < prev->nb_dpb_pics; i++) {
for (j = 0; j < pic->nb_dpb_pics; j++) {
if (prev->dpb[i] == pic->dpb[j])
break;
}
if (j == pic->nb_dpb_pics) {
discard_list[discard] = prev->dpb[i];
++discard;
} else {
++keep;
}
}
av_assert0(keep <= priv->units.dpb_frames);
if (discard == 0) {
sh->adaptive_ref_pic_marking_mode_flag = 0;
} else {
sh->adaptive_ref_pic_marking_mode_flag = 1;
for (i = 0; i < discard; i++) {
VAAPIEncodeH264Picture *old = discard_list[i]->codec_priv;
av_assert0(old->frame_num < hpic->frame_num);
sh->mmco[i].memory_management_control_operation = 1;
sh->mmco[i].difference_of_pic_nums_minus1 =
hpic->frame_num - old->frame_num - 1;
}
sh->mmco[i].memory_management_control_operation = 0;
}
}
// If the intended references are not the first entries of RefPicListN
// by default, use ref-pic-list-modification to move them there.
if (pic->type == FF_HW_PICTURE_TYPE_P || pic->type == FF_HW_PICTURE_TYPE_B) {
FFHWBaseEncodePicture *def_l0[MAX_DPB_SIZE], *def_l1[MAX_DPB_SIZE];
VAAPIEncodeH264Picture *href;
int n;
vaapi_encode_h264_default_ref_pic_list(avctx, pic,
def_l0, def_l1, &n);
if (pic->type == FF_HW_PICTURE_TYPE_P) {
int need_rplm = 0;
for (i = 0; i < pic->nb_refs[0]; i++) {
av_assert0(pic->refs[0][i]);
if (pic->refs[0][i] != (FFHWBaseEncodePicture *)def_l0[i])
need_rplm = 1;
}
sh->ref_pic_list_modification_flag_l0 = need_rplm;
if (need_rplm) {
int pic_num = hpic->frame_num;
for (i = 0; i < pic->nb_refs[0]; i++) {
href = pic->refs[0][i]->codec_priv;
av_assert0(href->frame_num != pic_num);
if (href->frame_num < pic_num) {
sh->rplm_l0[i].modification_of_pic_nums_idc = 0;
sh->rplm_l0[i].abs_diff_pic_num_minus1 =
pic_num - href->frame_num - 1;
} else {
sh->rplm_l0[i].modification_of_pic_nums_idc = 1;
sh->rplm_l0[i].abs_diff_pic_num_minus1 =
href->frame_num - pic_num - 1;
}
pic_num = href->frame_num;
}
sh->rplm_l0[i].modification_of_pic_nums_idc = 3;
}
} else {
int need_rplm_l0 = 0, need_rplm_l1 = 0;
int n0 = 0, n1 = 0;
for (i = 0; i < pic->nb_refs[0]; i++) {
av_assert0(pic->refs[0][i]);
href = pic->refs[0][i]->codec_priv;
av_assert0(href->pic_order_cnt < hpic->pic_order_cnt);
if (pic->refs[0][i] != (FFHWBaseEncodePicture *)def_l0[n0])
need_rplm_l0 = 1;
++n0;
}
for (i = 0; i < pic->nb_refs[1]; i++) {
av_assert0(pic->refs[1][i]);
href = pic->refs[1][i]->codec_priv;
av_assert0(href->pic_order_cnt > hpic->pic_order_cnt);
if (pic->refs[1][i] != (FFHWBaseEncodePicture *)def_l1[n1])
need_rplm_l1 = 1;
++n1;
}
sh->ref_pic_list_modification_flag_l0 = need_rplm_l0;
if (need_rplm_l0) {
int pic_num = hpic->frame_num;
for (i = j = 0; i < pic->nb_refs[0]; i++) {
href = pic->refs[0][i]->codec_priv;
av_assert0(href->frame_num != pic_num);
if (href->frame_num < pic_num) {
sh->rplm_l0[j].modification_of_pic_nums_idc = 0;
sh->rplm_l0[j].abs_diff_pic_num_minus1 =
pic_num - href->frame_num - 1;
} else {
sh->rplm_l0[j].modification_of_pic_nums_idc = 1;
sh->rplm_l0[j].abs_diff_pic_num_minus1 =
href->frame_num - pic_num - 1;
}
pic_num = href->frame_num;
++j;
}
av_assert0(j == n0);
sh->rplm_l0[j].modification_of_pic_nums_idc = 3;
}
sh->ref_pic_list_modification_flag_l1 = need_rplm_l1;
if (need_rplm_l1) {
int pic_num = hpic->frame_num;
for (i = j = 0; i < pic->nb_refs[1]; i++) {
href = pic->refs[1][i]->codec_priv;
av_assert0(href->frame_num != pic_num);
if (href->frame_num < pic_num) {
sh->rplm_l1[j].modification_of_pic_nums_idc = 0;
sh->rplm_l1[j].abs_diff_pic_num_minus1 =
pic_num - href->frame_num - 1;
} else {
sh->rplm_l1[j].modification_of_pic_nums_idc = 1;
sh->rplm_l1[j].abs_diff_pic_num_minus1 =
href->frame_num - pic_num - 1;
}
pic_num = href->frame_num;
++j;
}
av_assert0(j == n1);
sh->rplm_l1[j].modification_of_pic_nums_idc = 3;
}
}
}
vslice->macroblock_address = slice->block_start;
vslice->num_macroblocks = slice->block_size;
vslice->macroblock_info = VA_INVALID_ID;
vslice->slice_type = sh->slice_type % 5;
vslice->pic_parameter_set_id = sh->pic_parameter_set_id;
vslice->idr_pic_id = sh->idr_pic_id;
vslice->pic_order_cnt_lsb = sh->pic_order_cnt_lsb;
vslice->direct_spatial_mv_pred_flag = sh->direct_spatial_mv_pred_flag;
for (i = 0; i < FF_ARRAY_ELEMS(vslice->RefPicList0); i++) {
vslice->RefPicList0[i].picture_id = VA_INVALID_ID;
vslice->RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
vslice->RefPicList1[i].picture_id = VA_INVALID_ID;
vslice->RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
}
if (pic->nb_refs[0]) {
// Backward reference for P- or B-frame.
av_assert0(pic->type == FF_HW_PICTURE_TYPE_P ||
pic->type == FF_HW_PICTURE_TYPE_B);
vslice->RefPicList0[0] = vpic->ReferenceFrames[0];
}
if (pic->nb_refs[1]) {
// Forward reference for B-frame.
av_assert0(pic->type == FF_HW_PICTURE_TYPE_B);
vslice->RefPicList1[0] = vpic->ReferenceFrames[1];
}
vslice->slice_qp_delta = sh->slice_qp_delta;
return 0;
}
static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeH264Context *priv = avctx->priv_data;
int err;
err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_H264, avctx);
if (err < 0)
return err;
priv->mb_width = FFALIGN(avctx->width, 16) / 16;
priv->mb_height = FFALIGN(avctx->height, 16) / 16;
if (ctx->va_rc_mode == VA_RC_CQP) {
priv->fixed_qp_p = av_clip(ctx->rc_quality, 1, 51);
if (avctx->i_quant_factor > 0.0)
priv->fixed_qp_idr =
av_clip((avctx->i_quant_factor * priv->fixed_qp_p +
avctx->i_quant_offset) + 0.5, 1, 51);
else
priv->fixed_qp_idr = priv->fixed_qp_p;
if (avctx->b_quant_factor > 0.0)
priv->fixed_qp_b =
av_clip((avctx->b_quant_factor * priv->fixed_qp_p +
avctx->b_quant_offset) + 0.5, 1, 51);
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 {
// These still need to be set for pic_init_qp/slice_qp_delta.
priv->fixed_qp_idr = 26;
priv->fixed_qp_p = 26;
priv->fixed_qp_b = 26;
}
if (!ctx->rc_mode->hrd) {
// Timing SEI requires a mode respecting HRD parameters.
priv->sei &= ~SEI_TIMING;
}
if (priv->sei & SEI_IDENTIFIER) {
const char *lavc = LIBAVCODEC_IDENT;
const char *vaapi = VA_VERSION_S;
const char *driver;
int len;
memcpy(priv->sei_identifier.uuid_iso_iec_11578,
vaapi_encode_h264_sei_identifier_uuid,
sizeof(priv->sei_identifier.uuid_iso_iec_11578));
driver = vaQueryVendorString(ctx->hwctx->display);
if (!driver)
driver = "unknown driver";
len = snprintf(NULL, 0, "%s / VAAPI %s / %s", lavc, vaapi, driver);
if (len >= 0) {
priv->sei_identifier_string = av_malloc(len + 1);
if (!priv->sei_identifier_string)
return AVERROR(ENOMEM);
snprintf(priv->sei_identifier_string, len + 1,
"%s / VAAPI %s / %s", lavc, vaapi, driver);
priv->sei_identifier.data = priv->sei_identifier_string;
priv->sei_identifier.data_length = len + 1;
}
}
ctx->roi_quant_range = 51 + 6 * (ctx->profile->depth - 8);
return 0;
}
static const VAAPIEncodeProfile vaapi_encode_h264_profiles[] = {
#if VA_CHECK_VERSION(1, 18, 0)
{ AV_PROFILE_H264_HIGH_10, 10, 3, 1, 1, VAProfileH264High10 },
#endif
{ AV_PROFILE_H264_HIGH, 8, 3, 1, 1, VAProfileH264High },
{ AV_PROFILE_H264_MAIN, 8, 3, 1, 1, VAProfileH264Main },
{ AV_PROFILE_H264_CONSTRAINED_BASELINE,
8, 3, 1, 1, VAProfileH264ConstrainedBaseline },
{ AV_PROFILE_UNKNOWN }
};
static const VAAPIEncodeType vaapi_encode_type_h264 = {
.profiles = vaapi_encode_h264_profiles,
.flags = FF_HW_FLAG_SLICE_CONTROL |
FF_HW_FLAG_B_PICTURES |
FF_HW_FLAG_B_PICTURE_REFERENCES |
FF_HW_FLAG_NON_IDR_KEY_PICTURES,
.default_quality = 20,
.configure = &vaapi_encode_h264_configure,
.picture_priv_data_size = sizeof(VAAPIEncodeH264Picture),
.sequence_params_size = sizeof(VAEncSequenceParameterBufferH264),
.init_sequence_params = &vaapi_encode_h264_init_sequence_params,
.picture_params_size = sizeof(VAEncPictureParameterBufferH264),
.init_picture_params = &vaapi_encode_h264_init_picture_params,
.slice_params_size = sizeof(VAEncSliceParameterBufferH264),
.init_slice_params = &vaapi_encode_h264_init_slice_params,
.sequence_header_type = VAEncPackedHeaderSequence,
.write_sequence_header = &vaapi_encode_h264_write_sequence_header,
.slice_header_type = VAEncPackedHeaderH264_Slice,
.write_slice_header = &vaapi_encode_h264_write_slice_header,
.write_extra_header = &vaapi_encode_h264_write_extra_header,
};
static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)
{
FFHWBaseEncodeContext *base_ctx = avctx->priv_data;
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeH264Context *priv = avctx->priv_data;
ctx->codec = &vaapi_encode_type_h264;
if (avctx->profile == AV_PROFILE_UNKNOWN)
avctx->profile = priv->profile;
if (avctx->level == AV_LEVEL_UNKNOWN)
avctx->level = priv->level;
if (avctx->compression_level == FF_COMPRESSION_DEFAULT)
avctx->compression_level = priv->quality;
// Reject unsupported profiles.
switch (avctx->profile) {
case AV_PROFILE_H264_BASELINE:
av_log(avctx, AV_LOG_WARNING, "H.264 baseline profile is not "
"supported, using constrained baseline profile instead.\n");
avctx->profile = AV_PROFILE_H264_CONSTRAINED_BASELINE;
break;
case AV_PROFILE_H264_EXTENDED:
av_log(avctx, AV_LOG_ERROR, "H.264 extended profile "
"is not supported.\n");
return AVERROR_PATCHWELCOME;
case AV_PROFILE_H264_HIGH_10_INTRA:
av_log(avctx, AV_LOG_ERROR, "H.264 high 10 intra profile "
"is not supported.\n");
return AVERROR_PATCHWELCOME;
case AV_PROFILE_H264_HIGH_422:
case AV_PROFILE_H264_HIGH_422_INTRA:
case AV_PROFILE_H264_HIGH_444:
case AV_PROFILE_H264_HIGH_444_PREDICTIVE:
case AV_PROFILE_H264_HIGH_444_INTRA:
case AV_PROFILE_H264_CAVLC_444:
av_log(avctx, AV_LOG_ERROR, "H.264 non-4:2:0 profiles "
"are not supported.\n");
return AVERROR_PATCHWELCOME;
}
if (avctx->level != AV_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 | // SPS and PPS.
VA_ENC_PACKED_HEADER_SLICE | // Slice headers.
VA_ENC_PACKED_HEADER_MISC; // SEI.
base_ctx->surface_width = FFALIGN(avctx->width, 16);
base_ctx->surface_height = FFALIGN(avctx->height, 16);
base_ctx->slice_block_height = base_ctx->slice_block_width = 16;
if (priv->qp > 0)
ctx->explicit_qp = priv->qp;
return ff_vaapi_encode_init(avctx);
}
static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)
{
VAAPIEncodeH264Context *priv = avctx->priv_data;
ff_cbs_fragment_free(&priv->current_access_unit);
ff_cbs_close(&priv->cbc);
av_freep(&priv->sei_identifier_string);
av_freep(&priv->sei_a53cc_data);
return ff_vaapi_encode_close(avctx);
}
#define OFFSET(x) offsetof(VAAPIEncodeH264Context, x)
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
static const AVOption vaapi_encode_h264_options[] = {
HW_BASE_ENCODE_COMMON_OPTIONS,
VAAPI_ENCODE_COMMON_OPTIONS,
VAAPI_ENCODE_RC_OPTIONS,
{ "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, FLAGS },
{ "quality", "Set encode quality (trades off against speed, higher is faster)",
OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
{ "coder", "Entropy coder type",
OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, .unit = "coder" },
{ "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, .unit = "coder" },
{ "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, .unit = "coder" },
{ "vlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, .unit = "coder" },
{ "ac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, .unit = "coder" },
{ "aud", "Include AUD",
OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
{ "sei", "Set SEI to include",
OFFSET(sei), AV_OPT_TYPE_FLAGS,
{ .i64 = SEI_IDENTIFIER | SEI_TIMING | SEI_RECOVERY_POINT | SEI_A53_CC },
0, INT_MAX, FLAGS, .unit = "sei" },
{ "identifier", "Include encoder version identifier",
0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },
INT_MIN, INT_MAX, FLAGS, .unit = "sei" },
{ "timing", "Include timing parameters (buffering_period and pic_timing)",
0, AV_OPT_TYPE_CONST, { .i64 = SEI_TIMING },
INT_MIN, INT_MAX, FLAGS, .unit = "sei" },
{ "recovery_point", "Include recovery points where appropriate",
0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },
INT_MIN, INT_MAX, FLAGS, .unit = "sei" },
{ "a53_cc", "Include A/53 caption data",
0, AV_OPT_TYPE_CONST, { .i64 = SEI_A53_CC },
INT_MIN, INT_MAX, FLAGS, .unit = "sei" },
{ "profile", "Set profile (profile_idc and constraint_set*_flag)",
OFFSET(profile), AV_OPT_TYPE_INT,
{ .i64 = AV_PROFILE_UNKNOWN }, AV_PROFILE_UNKNOWN, 0xffff, FLAGS, .unit = "profile" },
#define PROFILE(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
{ .i64 = value }, 0, 0, FLAGS, .unit = "profile"
{ PROFILE("constrained_baseline", AV_PROFILE_H264_CONSTRAINED_BASELINE) },
{ PROFILE("main", AV_PROFILE_H264_MAIN) },
{ PROFILE("high", AV_PROFILE_H264_HIGH) },
{ PROFILE("high10", AV_PROFILE_H264_HIGH_10) },
#undef PROFILE
{ "level", "Set level (level_idc)",
OFFSET(level), AV_OPT_TYPE_INT,
{ .i64 = AV_LEVEL_UNKNOWN }, AV_LEVEL_UNKNOWN, 0xff, FLAGS, .unit = "level" },
#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
{ .i64 = value }, 0, 0, FLAGS, .unit = "level"
{ LEVEL("1", 10) },
{ LEVEL("1.1", 11) },
{ LEVEL("1.2", 12) },
{ LEVEL("1.3", 13) },
{ LEVEL("2", 20) },
{ LEVEL("2.1", 21) },
{ LEVEL("2.2", 22) },
{ LEVEL("3", 30) },
{ LEVEL("3.1", 31) },
{ LEVEL("3.2", 32) },
{ LEVEL("4", 40) },
{ LEVEL("4.1", 41) },
{ LEVEL("4.2", 42) },
{ LEVEL("5", 50) },
{ LEVEL("5.1", 51) },
{ LEVEL("5.2", 52) },
{ LEVEL("6", 60) },
{ LEVEL("6.1", 61) },
{ LEVEL("6.2", 62) },
#undef LEVEL
{ NULL },
};
static const FFCodecDefault vaapi_encode_h264_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_h264_class = {
.class_name = "h264_vaapi",
.item_name = av_default_item_name,
.option = vaapi_encode_h264_options,
.version = LIBAVUTIL_VERSION_INT,
};
const FFCodec ff_h264_vaapi_encoder = {
.p.name = "h264_vaapi",
CODEC_LONG_NAME("H.264/AVC (VAAPI)"),
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_H264,
.priv_data_size = sizeof(VAAPIEncodeH264Context),
.init = &vaapi_encode_h264_init,
FF_CODEC_RECEIVE_PACKET_CB(&ff_vaapi_encode_receive_packet),
.close = &vaapi_encode_h264_close,
.p.priv_class = &vaapi_encode_h264_class,
.p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE |
AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
.caps_internal = FF_CODEC_CAP_NOT_INIT_THREADSAFE |
FF_CODEC_CAP_INIT_CLEANUP,
.defaults = vaapi_encode_h264_defaults,
.p.pix_fmts = (const enum AVPixelFormat[]) {
AV_PIX_FMT_VAAPI,
AV_PIX_FMT_NONE,
},
.color_ranges = AVCOL_RANGE_MPEG | AVCOL_RANGE_JPEG,
.hw_configs = ff_vaapi_encode_hw_configs,
.p.wrapper_name = "vaapi",
};