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ffmpeg/libavcodec/vaapi_encode_vp9.c
Andreas Rheinhardt a247ac640d avcodec: Constify AVCodecs 
Given that the AVCodec.next pointer has now been removed, most of the
AVCodecs are not modified at all any more and can therefore be made
const (as this patch does); the only exceptions are the very few codecs
for external libraries that have a init_static_data callback.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
2021-04-27 10:43:15 -03:00

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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 <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 VAAPIEncodeVP9Picture {
int slot;
} VAAPIEncodeVP9Picture;
typedef struct VAAPIEncodeVP9Context {
VAAPIEncodeContext common;
// User options.
int loop_filter_level;
int loop_filter_sharpness;
// Derived settings.
int q_idx_idr;
int q_idx_p;
int q_idx_b;
} VAAPIEncodeVP9Context;
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 = ctx->va_bit_rate;
vseq->intra_period = ctx->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;
VAAPIEncodeVP9Context *priv = avctx->priv_data;
VAAPIEncodeVP9Picture *hpic = pic->priv_data;
VAEncPictureParameterBufferVP9 *vpic = pic->codec_picture_params;
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 = 0xff;
hpic->slot = 0;
break;
case PICTURE_TYPE_P:
av_assert0(pic->nb_refs == 1);
{
VAAPIEncodeVP9Picture *href = pic->refs[0]->priv_data;
av_assert0(href->slot == 0 || href->slot == 1);
if (ctx->max_b_depth > 0) {
hpic->slot = !href->slot;
vpic->refresh_frame_flags = 1 << hpic->slot | 0xfc;
} else {
hpic->slot = 0;
vpic->refresh_frame_flags = 0xff;
}
vpic->ref_flags.bits.ref_frame_ctrl_l0 = 1;
vpic->ref_flags.bits.ref_last_idx = href->slot;
vpic->ref_flags.bits.ref_last_sign_bias = 1;
}
break;
case PICTURE_TYPE_B:
av_assert0(pic->nb_refs == 2);
{
VAAPIEncodeVP9Picture *href0 = pic->refs[0]->priv_data,
*href1 = pic->refs[1]->priv_data;
av_assert0(href0->slot < pic->b_depth + 1 &&
href1->slot < pic->b_depth + 1);
if (pic->b_depth == ctx->max_b_depth) {
// Unreferenced frame.
vpic->refresh_frame_flags = 0x00;
hpic->slot = 8;
} else {
vpic->refresh_frame_flags = 0xfe << pic->b_depth & 0xff;
hpic->slot = 1 + pic->b_depth;
}
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 = href0->slot;
vpic->ref_flags.bits.ref_last_sign_bias = 1;
vpic->ref_flags.bits.ref_gf_idx = href1->slot;
vpic->ref_flags.bits.ref_gf_sign_bias = 0;
}
break;
default:
av_assert0(0 && "invalid picture type");
}
if (vpic->refresh_frame_flags == 0x00) {
av_log(avctx, AV_LOG_DEBUG, "Pic %"PRId64" not stored.\n",
pic->display_order);
} else {
av_log(avctx, AV_LOG_DEBUG, "Pic %"PRId64" stored in slot %d.\n",
pic->display_order, hpic->slot);
}
for (i = 0; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++)
vpic->reference_frames[i] = VA_INVALID_SURFACE;
for (i = 0; i < pic->nb_refs; i++) {
VAAPIEncodePicture *ref_pic = pic->refs[i];
int slot;
slot = ((VAAPIEncodeVP9Picture*)ref_pic->priv_data)->slot;
av_assert0(vpic->reference_frames[slot] == VA_INVALID_SURFACE);
vpic->reference_frames[slot] = ref_pic->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 = priv->loop_filter_level;
vpic->sharpness_level = priv->loop_filter_sharpness;
return 0;
}
static av_cold int vaapi_encode_vp9_configure(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeVP9Context *priv = avctx->priv_data;
if (ctx->rc_mode->quality) {
priv->q_idx_p = av_clip(ctx->rc_quality, 0, VP9_MAX_QUANT);
if (avctx->i_quant_factor > 0.0)
priv->q_idx_idr =
av_clip((avctx->i_quant_factor * priv->q_idx_p +
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->b_quant_factor * priv->q_idx_p +
avctx->b_quant_offset) + 0.5,
0, VP9_MAX_QUANT);
else
priv->q_idx_b = priv->q_idx_p;
} else {
// Arbitrary value.
priv->q_idx_idr = priv->q_idx_p = priv->q_idx_b = 100;
}
ctx->roi_quant_range = VP9_MAX_QUANT;
return 0;
}
static const VAAPIEncodeProfile vaapi_encode_vp9_profiles[] = {
{ FF_PROFILE_VP9_0, 8, 3, 1, 1, VAProfileVP9Profile0 },
{ FF_PROFILE_VP9_2, 10, 3, 1, 1, VAProfileVP9Profile2 },
{ FF_PROFILE_UNKNOWN }
};
static const VAAPIEncodeType vaapi_encode_type_vp9 = {
.profiles = vaapi_encode_vp9_profiles,
.flags = FLAG_B_PICTURES |
FLAG_B_PICTURE_REFERENCES,
.default_quality = 100,
.picture_priv_data_size = sizeof(VAAPIEncodeVP9Picture),
.configure = &vaapi_encode_vp9_configure,
.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;
// No packed headers are currently desired. They could be written,
// but there isn't any reason to do so - the one usable driver (i965)
// can write its own headers and there is no metadata to include.
ctx->desired_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(VAAPIEncodeVP9Context, x)
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
static const AVOption vaapi_encode_vp9_options[] = {
VAAPI_ENCODE_COMMON_OPTIONS,
VAAPI_ENCODE_RC_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[] = {
{ "b", "0" },
{ "bf", "0" },
{ "g", "250" },
{ "qmin", "-1" },
{ "qmax", "-1" },
{ 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,
};
const 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(VAAPIEncodeVP9Context),
.init = &vaapi_encode_vp9_init,
.receive_packet = &ff_vaapi_encode_receive_packet,
.close = &ff_vaapi_encode_close,
.priv_class = &vaapi_encode_vp9_class,
.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE |
AV_CODEC_CAP_DR1,
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
.defaults = vaapi_encode_vp9_defaults,
.pix_fmts = (const enum AVPixelFormat[]) {
AV_PIX_FMT_VAAPI,
AV_PIX_FMT_NONE,
},
.hw_configs = ff_vaapi_encode_hw_configs,
.wrapper_name = "vaapi",
};
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