| bde04604 |
/*
* 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 <va/va.h>
#include <va/va_enc_vp9.h>
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "libavutil/pixfmt.h"
#include "avcodec.h"
#include "internal.h"
#include "vaapi_encode.h"
#define VP9_MAX_QUANT 255
typedef struct VAAPIEncodeVP9Context {
int q_idx_idr;
int q_idx_p;
int q_idx_b;
// Reference direction for B-like frames:
// 0 - most recent P/IDR frame is last.
// 1 - most recent P frame is golden.
int last_ref_dir;
} VAAPIEncodeVP9Context;
typedef struct VAAPIEncodeVP9Options {
int loop_filter_level;
int loop_filter_sharpness;
} VAAPIEncodeVP9Options;
#define vseq_var(name) vseq->name, name
#define vseq_field(name) vseq->seq_fields.bits.name, name
#define vpic_var(name) vpic->name, name
#define vpic_field(name) vpic->pic_fields.bits.name, name
static int vaapi_encode_vp9_init_sequence_params(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAEncSequenceParameterBufferVP9 *vseq = ctx->codec_sequence_params;
VAEncPictureParameterBufferVP9 *vpic = ctx->codec_picture_params;
vseq->max_frame_width = avctx->width;
vseq->max_frame_height = avctx->height;
vseq->kf_auto = 0;
if (!(ctx->va_rc_mode & VA_RC_CQP)) {
vseq->bits_per_second = avctx->bit_rate;
vseq->intra_period = avctx->gop_size;
}
vpic->frame_width_src = avctx->width;
vpic->frame_height_src = avctx->height;
vpic->frame_width_dst = avctx->width;
vpic->frame_height_dst = avctx->height;
return 0;
}
static int vaapi_encode_vp9_init_picture_params(AVCodecContext *avctx,
VAAPIEncodePicture *pic)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAEncPictureParameterBufferVP9 *vpic = pic->codec_picture_params;
VAAPIEncodeVP9Context *priv = ctx->priv_data;
VAAPIEncodeVP9Options *opt = ctx->codec_options;
int i;
vpic->reconstructed_frame = pic->recon_surface;
vpic->coded_buf = pic->output_buffer;
switch (pic->type) {
case PICTURE_TYPE_IDR:
av_assert0(pic->nb_refs == 0);
vpic->ref_flags.bits.force_kf = 1;
vpic->refresh_frame_flags = 0x01;
priv->last_ref_dir = 0;
break;
case PICTURE_TYPE_P:
av_assert0(pic->nb_refs == 1);
if (avctx->max_b_frames > 0) {
if (priv->last_ref_dir) {
vpic->ref_flags.bits.ref_frame_ctrl_l0 = 2;
vpic->ref_flags.bits.ref_gf_idx = 1;
vpic->ref_flags.bits.ref_gf_sign_bias = 1;
vpic->refresh_frame_flags = 0x01;
} else {
vpic->ref_flags.bits.ref_frame_ctrl_l0 = 1;
vpic->ref_flags.bits.ref_last_idx = 0;
vpic->ref_flags.bits.ref_last_sign_bias = 1;
vpic->refresh_frame_flags = 0x02;
}
} else {
vpic->ref_flags.bits.ref_frame_ctrl_l0 = 1;
vpic->ref_flags.bits.ref_last_idx = 0;
vpic->ref_flags.bits.ref_last_sign_bias = 1;
vpic->refresh_frame_flags = 0x01;
}
break;
case PICTURE_TYPE_B:
av_assert0(pic->nb_refs == 2);
if (priv->last_ref_dir) {
vpic->ref_flags.bits.ref_frame_ctrl_l0 = 1;
vpic->ref_flags.bits.ref_frame_ctrl_l1 = 2;
vpic->ref_flags.bits.ref_last_idx = 0;
vpic->ref_flags.bits.ref_last_sign_bias = 1;
vpic->ref_flags.bits.ref_gf_idx = 1;
vpic->ref_flags.bits.ref_gf_sign_bias = 0;
} else {
vpic->ref_flags.bits.ref_frame_ctrl_l0 = 2;
vpic->ref_flags.bits.ref_frame_ctrl_l1 = 1;
vpic->ref_flags.bits.ref_last_idx = 0;
vpic->ref_flags.bits.ref_last_sign_bias = 0;
vpic->ref_flags.bits.ref_gf_idx = 1;
vpic->ref_flags.bits.ref_gf_sign_bias = 1;
}
vpic->refresh_frame_flags = 0x00;
break;
default:
av_assert0(0 && "invalid picture type");
}
for (i = 0; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++)
vpic->reference_frames[i] = VA_INVALID_SURFACE;
if (pic->type == PICTURE_TYPE_P) {
av_assert0(pic->refs[0]);
vpic->reference_frames[priv->last_ref_dir] =
pic->refs[0]->recon_surface;
} else if (pic->type == PICTURE_TYPE_B) {
av_assert0(pic->refs[0] && pic->refs[1]);
vpic->reference_frames[!priv->last_ref_dir] =
pic->refs[0]->recon_surface;
vpic->reference_frames[priv->last_ref_dir] =
pic->refs[1]->recon_surface;
}
vpic->pic_flags.bits.frame_type = (pic->type != PICTURE_TYPE_IDR);
vpic->pic_flags.bits.show_frame = pic->display_order <= pic->encode_order;
if (pic->type == PICTURE_TYPE_IDR)
vpic->luma_ac_qindex = priv->q_idx_idr;
else if (pic->type == PICTURE_TYPE_P)
vpic->luma_ac_qindex = priv->q_idx_p;
else
vpic->luma_ac_qindex = priv->q_idx_b;
vpic->luma_dc_qindex_delta = 0;
vpic->chroma_ac_qindex_delta = 0;
vpic->chroma_dc_qindex_delta = 0;
vpic->filter_level = opt->loop_filter_level;
vpic->sharpness_level = opt->loop_filter_sharpness;
if (avctx->max_b_frames > 0 && pic->type == PICTURE_TYPE_P)
priv->last_ref_dir = !priv->last_ref_dir;
return 0;
}
static av_cold int vaapi_encode_vp9_configure(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeVP9Context *priv = ctx->priv_data;
priv->q_idx_p = av_clip(avctx->global_quality, 0, VP9_MAX_QUANT);
if (avctx->i_quant_factor > 0.0)
priv->q_idx_idr = av_clip((avctx->global_quality *
avctx->i_quant_factor +
avctx->i_quant_offset) + 0.5,
0, VP9_MAX_QUANT);
else
priv->q_idx_idr = priv->q_idx_p;
if (avctx->b_quant_factor > 0.0)
priv->q_idx_b = av_clip((avctx->global_quality *
avctx->b_quant_factor +
avctx->b_quant_offset) + 0.5,
0, VP9_MAX_QUANT);
else
priv->q_idx_b = priv->q_idx_p;
return 0;
}
static const VAAPIEncodeType vaapi_encode_type_vp9 = {
.configure = &vaapi_encode_vp9_configure,
.priv_data_size = sizeof(VAAPIEncodeVP9Context),
.sequence_params_size = sizeof(VAEncSequenceParameterBufferVP9),
.init_sequence_params = &vaapi_encode_vp9_init_sequence_params,
.picture_params_size = sizeof(VAEncPictureParameterBufferVP9),
.init_picture_params = &vaapi_encode_vp9_init_picture_params,
};
static av_cold int vaapi_encode_vp9_init(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
ctx->codec = &vaapi_encode_type_vp9;
switch (avctx->profile) {
case FF_PROFILE_VP9_0:
case FF_PROFILE_UNKNOWN:
ctx->va_profile = VAProfileVP9Profile0;
ctx->va_rt_format = VA_RT_FORMAT_YUV420;
break;
case FF_PROFILE_VP9_1:
av_log(avctx, AV_LOG_ERROR, "VP9 profile 1 is not "
"supported.\n");
return AVERROR_PATCHWELCOME;
case FF_PROFILE_VP9_2:
ctx->va_profile = VAProfileVP9Profile2;
ctx->va_rt_format = VA_RT_FORMAT_YUV420_10BPP;
break;
case FF_PROFILE_VP9_3:
av_log(avctx, AV_LOG_ERROR, "VP9 profile 3 is not "
"supported.\n");
return AVERROR_PATCHWELCOME;
default:
av_log(avctx, AV_LOG_ERROR, "Unknown VP9 profile %d.\n",
avctx->profile);
return AVERROR(EINVAL);
}
ctx->va_entrypoint = VAEntrypointEncSlice;
if (avctx->flags & AV_CODEC_FLAG_QSCALE) {
ctx->va_rc_mode = VA_RC_CQP;
} else if (avctx->bit_rate > 0) {
if (avctx->bit_rate == avctx->rc_max_rate)
ctx->va_rc_mode = VA_RC_CBR;
else
ctx->va_rc_mode = VA_RC_VBR;
} else {
ctx->va_rc_mode = VA_RC_CQP;
}
// Packed headers are not currently supported.
ctx->va_packed_headers = 0;
// Surfaces must be aligned to superblock boundaries.
ctx->surface_width = FFALIGN(avctx->width, 64);
ctx->surface_height = FFALIGN(avctx->height, 64);
return ff_vaapi_encode_init(avctx);
}
#define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \
offsetof(VAAPIEncodeVP9Options, x))
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
static const AVOption vaapi_encode_vp9_options[] = {
{ "loop_filter_level", "Loop filter level",
OFFSET(loop_filter_level), AV_OPT_TYPE_INT, { .i64 = 16 }, 0, 63, FLAGS },
{ "loop_filter_sharpness", "Loop filter sharpness",
OFFSET(loop_filter_sharpness), AV_OPT_TYPE_INT, { .i64 = 4 }, 0, 15, FLAGS },
{ NULL },
};
static const AVCodecDefault vaapi_encode_vp9_defaults[] = {
{ "profile", "0" },
{ "b", "0" },
{ "bf", "0" },
{ "g", "250" },
{ "global_quality", "100" },
{ NULL },
};
static const AVClass vaapi_encode_vp9_class = {
.class_name = "vp9_vaapi",
.item_name = av_default_item_name,
.option = vaapi_encode_vp9_options,
.version = LIBAVUTIL_VERSION_INT,
};
AVCodec ff_vp9_vaapi_encoder = {
.name = "vp9_vaapi",
.long_name = NULL_IF_CONFIG_SMALL("VP9 (VAAPI)"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_VP9,
.priv_data_size = (sizeof(VAAPIEncodeContext) +
sizeof(VAAPIEncodeVP9Options)),
.init = &vaapi_encode_vp9_init,
.encode2 = &ff_vaapi_encode2,
.close = &ff_vaapi_encode_close,
.priv_class = &vaapi_encode_vp9_class,
.capabilities = AV_CODEC_CAP_DELAY,
.defaults = vaapi_encode_vp9_defaults,
.pix_fmts = (const enum AVPixelFormat[]) {
AV_PIX_FMT_VAAPI,
AV_PIX_FMT_NONE,
},
}; |