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FFmpeg/libavcodec/vaapi_encode_mpeg2.c
Andreas Rheinhardt 4243da4ff4 avcodec/codec_internal: Use union for FFCodec decode/encode callbacks 
This is possible, because every given FFCodec has to implement
exactly one of these. Doing so decreases sizeof(FFCodec) and
therefore decreases the size of the binary.
Notice that in case of position-independent code the decrease
is in .data.rel.ro, so that this translates to decreased
memory consumption.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-04-05 20:02:37 +02:00

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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_mpeg2.h>
#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "cbs.h"
#include "cbs_mpeg2.h"
#include "codec_internal.h"
#include "mpeg12.h"
#include "vaapi_encode.h"
typedef struct VAAPIEncodeMPEG2Context {
VAAPIEncodeContext common;
// User options.
int profile;
int level;
// Derived settings.
int quant_i;
int quant_p;
int quant_b;
unsigned int bit_rate;
unsigned int vbv_buffer_size;
AVRational frame_rate;
unsigned int f_code_horizontal;
unsigned int f_code_vertical;
// Stream state.
int64_t last_i_frame;
// Writer structures.
MPEG2RawSequenceHeader sequence_header;
MPEG2RawExtensionData sequence_extension;
MPEG2RawExtensionData sequence_display_extension;
MPEG2RawGroupOfPicturesHeader gop_header;
MPEG2RawPictureHeader picture_header;
MPEG2RawExtensionData picture_coding_extension;
CodedBitstreamContext *cbc;
CodedBitstreamFragment current_fragment;
} VAAPIEncodeMPEG2Context;
static int vaapi_encode_mpeg2_write_fragment(AVCodecContext *avctx,
char *data, size_t *data_len,
CodedBitstreamFragment *frag)
{
VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
int err;
err = ff_cbs_write_fragment_data(priv->cbc, frag);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n");
return err;
}
if (*data_len < 8 * frag->data_size - frag->data_bit_padding) {
av_log(avctx, AV_LOG_ERROR, "Access unit too large: "
"%zu < %zu.\n", *data_len,
8 * frag->data_size - frag->data_bit_padding);
return AVERROR(ENOSPC);
}
memcpy(data, frag->data, frag->data_size);
*data_len = 8 * frag->data_size - frag->data_bit_padding;
return 0;
}
static int vaapi_encode_mpeg2_add_header(AVCodecContext *avctx,
CodedBitstreamFragment *frag,
int type, void *header)
{
int err;
err = ff_cbs_insert_unit_content(frag, -1, type, header, NULL);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to add header: "
"type = %d.\n", type);
return err;
}
return 0;
}
static int vaapi_encode_mpeg2_write_sequence_header(AVCodecContext *avctx,
char *data, size_t *data_len)
{
VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
CodedBitstreamFragment *frag = &priv->current_fragment;
int err;
err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_SEQUENCE_HEADER,
&priv->sequence_header);
if (err < 0)
goto fail;
err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_EXTENSION,
&priv->sequence_extension);
if (err < 0)
goto fail;
err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_EXTENSION,
&priv->sequence_display_extension);
if (err < 0)
goto fail;
err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_GROUP,
&priv->gop_header);
if (err < 0)
goto fail;
err = vaapi_encode_mpeg2_write_fragment(avctx, data, data_len, frag);
fail:
ff_cbs_fragment_reset(frag);
return 0;
}
static int vaapi_encode_mpeg2_write_picture_header(AVCodecContext *avctx,
VAAPIEncodePicture *pic,
char *data, size_t *data_len)
{
VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
CodedBitstreamFragment *frag = &priv->current_fragment;
int err;
err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_PICTURE,
&priv->picture_header);
if (err < 0)
goto fail;
err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_EXTENSION,
&priv->picture_coding_extension);
if (err < 0)
goto fail;
err = vaapi_encode_mpeg2_write_fragment(avctx, data, data_len, frag);
fail:
ff_cbs_fragment_reset(frag);
return 0;
}
static int vaapi_encode_mpeg2_init_sequence_params(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
MPEG2RawSequenceHeader *sh = &priv->sequence_header;
MPEG2RawSequenceExtension *se = &priv->sequence_extension.data.sequence;
MPEG2RawSequenceDisplayExtension *sde = &priv->sequence_display_extension.data.sequence_display;
MPEG2RawGroupOfPicturesHeader *goph = &priv->gop_header;
MPEG2RawPictureHeader *ph = &priv->picture_header;
MPEG2RawPictureCodingExtension *pce = &priv->picture_coding_extension.data.picture_coding;
VAEncSequenceParameterBufferMPEG2 *vseq = ctx->codec_sequence_params;
VAEncPictureParameterBufferMPEG2 *vpic = ctx->codec_picture_params;
int code, ext_n, ext_d;
memset(sh, 0, sizeof(*sh));
memset(se, 0, sizeof(*se));
memset(sde, 0, sizeof(*sde));
memset(goph, 0, sizeof(*goph));
memset(ph, 0, sizeof(*ph));
memset(pce, 0, sizeof(*pce));
if (ctx->va_bit_rate > 0) {
priv->bit_rate = (ctx->va_bit_rate + 399) / 400;
} else {
// Unknown (not a bitrate-targetting mode), so just use the
// highest value.
priv->bit_rate = 0x3fffffff;
}
if (avctx->rc_buffer_size > 0) {
priv->vbv_buffer_size = (avctx->rc_buffer_size + (1 << 14) - 1) >> 14;
} else {
// Unknown, so guess a value from the bitrate.
priv->vbv_buffer_size = priv->bit_rate >> 14;
}
switch (avctx->level) {
case 4: // High.
case 6: // High 1440.
priv->f_code_horizontal = 9;
priv->f_code_vertical = 5;
break;
case 8: // Main.
priv->f_code_horizontal = 8;
priv->f_code_vertical = 5;
break;
case 10: // Low.
default:
priv->f_code_horizontal = 7;
priv->f_code_vertical = 4;
break;
}
// Sequence header
sh->sequence_header_code = MPEG2_START_SEQUENCE_HEADER;
sh->horizontal_size_value = avctx->width & 0xfff;
sh->vertical_size_value = avctx->height & 0xfff;
if (avctx->sample_aspect_ratio.num != 0 &&
avctx->sample_aspect_ratio.den != 0) {
AVRational dar = av_div_q(avctx->sample_aspect_ratio,
(AVRational) { avctx->width, avctx->height });
if (av_cmp_q(avctx->sample_aspect_ratio, (AVRational) { 1, 1 }) == 0) {
sh->aspect_ratio_information = 1;
} else if (av_cmp_q(dar, (AVRational) { 3, 4 }) == 0) {
sh->aspect_ratio_information = 2;
} else if (av_cmp_q(dar, (AVRational) { 9, 16 }) == 0) {
sh->aspect_ratio_information = 3;
} else if (av_cmp_q(dar, (AVRational) { 100, 221 }) == 0) {
sh->aspect_ratio_information = 4;
} else {
av_log(avctx, AV_LOG_WARNING, "Sample aspect ratio %d:%d is not "
"representable, signalling square pixels instead.\n",
avctx->sample_aspect_ratio.num,
avctx->sample_aspect_ratio.den);
sh->aspect_ratio_information = 1;
}
} else {
// Unknown - assume square pixels.
sh->aspect_ratio_information = 1;
}
if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
priv->frame_rate = avctx->framerate;
else
priv->frame_rate = av_inv_q(avctx->time_base);
ff_mpeg12_find_best_frame_rate(priv->frame_rate,
&code, &ext_n, &ext_d, 0);
sh->frame_rate_code = code;
sh->bit_rate_value = priv->bit_rate & 0x3ffff;
sh->vbv_buffer_size_value = priv->vbv_buffer_size & 0x3ff;
sh->constrained_parameters_flag = 0;
sh->load_intra_quantiser_matrix = 0;
sh->load_non_intra_quantiser_matrix = 0;
// Sequence extension
priv->sequence_extension.extension_start_code = MPEG2_START_EXTENSION;
priv->sequence_extension.extension_start_code_identifier =
MPEG2_EXTENSION_SEQUENCE;
se->profile_and_level_indication = avctx->profile << 4 | avctx->level;
se->progressive_sequence = 1;
se->chroma_format = 1;
se->horizontal_size_extension = avctx->width >> 12;
se->vertical_size_extension = avctx->height >> 12;
se->bit_rate_extension = priv->bit_rate >> 18;
se->vbv_buffer_size_extension = priv->vbv_buffer_size >> 10;
se->low_delay = ctx->b_per_p == 0;
se->frame_rate_extension_n = ext_n;
se->frame_rate_extension_d = ext_d;
// Sequence display extension
priv->sequence_display_extension.extension_start_code =
MPEG2_START_EXTENSION;
priv->sequence_display_extension.extension_start_code_identifier =
MPEG2_EXTENSION_SEQUENCE_DISPLAY;
// Unspecified video format, from table 6-6.
sde->video_format = 5;
sde->colour_primaries = avctx->color_primaries;
sde->transfer_characteristics = avctx->color_trc;
sde->matrix_coefficients = avctx->colorspace;
sde->colour_description =
avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
avctx->color_trc != AVCOL_TRC_UNSPECIFIED ||
avctx->colorspace != AVCOL_SPC_UNSPECIFIED;
sde->display_horizontal_size = avctx->width;
sde->display_vertical_size = avctx->height;
// GOP header
goph->group_start_code = MPEG2_START_GROUP;
// Marker bit in the middle of time_code.
goph->time_code = 1 << 12;
goph->closed_gop = 1;
goph->broken_link = 0;
// Defaults for picture header
ph->picture_start_code = MPEG2_START_PICTURE;
ph->vbv_delay = 0xffff; // Not currently calculated.
ph->full_pel_forward_vector = 0;
ph->forward_f_code = 7;
ph->full_pel_backward_vector = 0;
ph->forward_f_code = 7;
// Defaults for picture coding extension
priv->picture_coding_extension.extension_start_code =
MPEG2_START_EXTENSION;
priv->picture_coding_extension.extension_start_code_identifier =
MPEG2_EXTENSION_PICTURE_CODING;
pce->intra_dc_precision = 0;
pce->picture_structure = 3;
pce->top_field_first = 0;
pce->frame_pred_frame_dct = 1;
pce->concealment_motion_vectors = 0;
pce->q_scale_type = 0;
pce->intra_vlc_format = 0;
pce->alternate_scan = 0;
pce->repeat_first_field = 0;
pce->progressive_frame = 1;
pce->composite_display_flag = 0;
*vseq = (VAEncSequenceParameterBufferMPEG2) {
.intra_period = ctx->gop_size,
.ip_period = ctx->b_per_p + 1,
.picture_width = avctx->width,
.picture_height = avctx->height,
.bits_per_second = ctx->va_bit_rate,
.frame_rate = av_q2d(priv->frame_rate),
.aspect_ratio_information = sh->aspect_ratio_information,
.vbv_buffer_size = priv->vbv_buffer_size,
.sequence_extension.bits = {
.profile_and_level_indication = se->profile_and_level_indication,
.progressive_sequence = se->progressive_sequence,
.chroma_format = se->chroma_format,
.low_delay = se->low_delay,
.frame_rate_extension_n = se->frame_rate_extension_n,
.frame_rate_extension_d = se->frame_rate_extension_d,
},
.new_gop_header = 1,
.gop_header.bits = {
.time_code = goph->time_code,
.closed_gop = goph->closed_gop,
.broken_link = goph->broken_link,
},
};
*vpic = (VAEncPictureParameterBufferMPEG2) {
.forward_reference_picture = VA_INVALID_ID,
.backward_reference_picture = VA_INVALID_ID,
.reconstructed_picture = VA_INVALID_ID,
.coded_buf = VA_INVALID_ID,
.vbv_delay = 0xffff,
.f_code = { { 15, 15 }, { 15, 15 } },
.picture_coding_extension.bits = {
.intra_dc_precision = pce->intra_dc_precision,
.picture_structure = pce->picture_structure,
.top_field_first = pce->top_field_first,
.frame_pred_frame_dct = pce->frame_pred_frame_dct,
.concealment_motion_vectors = pce->concealment_motion_vectors,
.q_scale_type = pce->q_scale_type,
.intra_vlc_format = pce->intra_vlc_format,
.alternate_scan = pce->alternate_scan,
.repeat_first_field = pce->repeat_first_field,
.progressive_frame = pce->progressive_frame,
.composite_display_flag = pce->composite_display_flag,
},
.composite_display.bits = {
.v_axis = pce->v_axis,
.field_sequence = pce->field_sequence,
.sub_carrier = pce->sub_carrier,
.burst_amplitude = pce->burst_amplitude,
.sub_carrier_phase = pce->sub_carrier_phase,
},
};
return 0;
}
static int vaapi_encode_mpeg2_init_picture_params(AVCodecContext *avctx,
VAAPIEncodePicture *pic)
{
VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
MPEG2RawPictureHeader *ph = &priv->picture_header;
MPEG2RawPictureCodingExtension *pce = &priv->picture_coding_extension.data.picture_coding;
VAEncPictureParameterBufferMPEG2 *vpic = pic->codec_picture_params;
if (pic->type == PICTURE_TYPE_IDR || pic->type == PICTURE_TYPE_I) {
ph->temporal_reference = 0;
ph->picture_coding_type = 1;
priv->last_i_frame = pic->display_order;
} else {
ph->temporal_reference = pic->display_order - priv->last_i_frame;
ph->picture_coding_type = pic->type == PICTURE_TYPE_B ? 3 : 2;
}
if (pic->type == PICTURE_TYPE_P || pic->type == PICTURE_TYPE_B) {
pce->f_code[0][0] = priv->f_code_horizontal;
pce->f_code[0][1] = priv->f_code_vertical;
} else {
pce->f_code[0][0] = 15;
pce->f_code[0][1] = 15;
}
if (pic->type == PICTURE_TYPE_B) {
pce->f_code[1][0] = priv->f_code_horizontal;
pce->f_code[1][1] = priv->f_code_vertical;
} else {
pce->f_code[1][0] = 15;
pce->f_code[1][1] = 15;
}
vpic->reconstructed_picture = pic->recon_surface;
vpic->coded_buf = pic->output_buffer;
switch (pic->type) {
case PICTURE_TYPE_IDR:
case PICTURE_TYPE_I:
vpic->picture_type = VAEncPictureTypeIntra;
break;
case PICTURE_TYPE_P:
vpic->picture_type = VAEncPictureTypePredictive;
vpic->forward_reference_picture = pic->refs[0]->recon_surface;
break;
case PICTURE_TYPE_B:
vpic->picture_type = VAEncPictureTypeBidirectional;
vpic->forward_reference_picture = pic->refs[0]->recon_surface;
vpic->backward_reference_picture = pic->refs[1]->recon_surface;
break;
default:
av_assert0(0 && "invalid picture type");
}
vpic->temporal_reference = ph->temporal_reference;
vpic->f_code[0][0] = pce->f_code[0][0];
vpic->f_code[0][1] = pce->f_code[0][1];
vpic->f_code[1][0] = pce->f_code[1][0];
vpic->f_code[1][1] = pce->f_code[1][1];
return 0;
}
static int vaapi_encode_mpeg2_init_slice_params(AVCodecContext *avctx,
VAAPIEncodePicture *pic,
VAAPIEncodeSlice *slice)
{
VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
VAEncSliceParameterBufferMPEG2 *vslice = slice->codec_slice_params;
int qp;
vslice->macroblock_address = slice->block_start;
vslice->num_macroblocks = slice->block_size;
switch (pic->type) {
case PICTURE_TYPE_IDR:
case PICTURE_TYPE_I:
qp = priv->quant_i;
break;
case PICTURE_TYPE_P:
qp = priv->quant_p;
break;
case PICTURE_TYPE_B:
qp = priv->quant_b;
break;
default:
av_assert0(0 && "invalid picture type");
}
vslice->quantiser_scale_code = qp;
vslice->is_intra_slice = (pic->type == PICTURE_TYPE_IDR ||
pic->type == PICTURE_TYPE_I);
return 0;
}
static av_cold int vaapi_encode_mpeg2_configure(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
int err;
err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_MPEG2VIDEO, avctx);
if (err < 0)
return err;
if (ctx->va_rc_mode == VA_RC_CQP) {
priv->quant_p = av_clip(ctx->rc_quality, 1, 31);
if (avctx->i_quant_factor > 0.0)
priv->quant_i =
av_clip((avctx->i_quant_factor * priv->quant_p +
avctx->i_quant_offset) + 0.5, 1, 31);
else
priv->quant_i = priv->quant_p;
if (avctx->b_quant_factor > 0.0)
priv->quant_b =
av_clip((avctx->b_quant_factor * priv->quant_p +
avctx->b_quant_offset) + 0.5, 1, 31);
else
priv->quant_b = priv->quant_p;
av_log(avctx, AV_LOG_DEBUG, "Using fixed quantiser "
"%d / %d / %d for I- / P- / B-frames.\n",
priv->quant_i, priv->quant_p, priv->quant_b);
} else {
priv->quant_i = 16;
priv->quant_p = 16;
priv->quant_b = 16;
}
ctx->slice_block_rows = FFALIGN(avctx->height, 16) / 16;
ctx->slice_block_cols = FFALIGN(avctx->width, 16) / 16;
ctx->nb_slices = ctx->slice_block_rows;
ctx->slice_size = 1;
ctx->roi_quant_range = 31;
return 0;
}
static const VAAPIEncodeProfile vaapi_encode_mpeg2_profiles[] = {
{ FF_PROFILE_MPEG2_MAIN, 8, 3, 1, 1, VAProfileMPEG2Main },
{ FF_PROFILE_MPEG2_SIMPLE, 8, 3, 1, 1, VAProfileMPEG2Simple },
{ FF_PROFILE_UNKNOWN }
};
static const VAAPIEncodeType vaapi_encode_type_mpeg2 = {
.profiles = vaapi_encode_mpeg2_profiles,
.flags = FLAG_B_PICTURES,
.configure = &vaapi_encode_mpeg2_configure,
.default_quality = 10,
.sequence_params_size = sizeof(VAEncSequenceParameterBufferMPEG2),
.init_sequence_params = &vaapi_encode_mpeg2_init_sequence_params,
.picture_params_size = sizeof(VAEncPictureParameterBufferMPEG2),
.init_picture_params = &vaapi_encode_mpeg2_init_picture_params,
.slice_params_size = sizeof(VAEncSliceParameterBufferMPEG2),
.init_slice_params = &vaapi_encode_mpeg2_init_slice_params,
.sequence_header_type = VAEncPackedHeaderSequence,
.write_sequence_header = &vaapi_encode_mpeg2_write_sequence_header,
.picture_header_type = VAEncPackedHeaderPicture,
.write_picture_header = &vaapi_encode_mpeg2_write_picture_header,
};
static av_cold int vaapi_encode_mpeg2_init(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
ctx->codec = &vaapi_encode_type_mpeg2;
if (avctx->profile == FF_PROFILE_UNKNOWN)
avctx->profile = priv->profile;
if (avctx->level == FF_LEVEL_UNKNOWN)
avctx->level = priv->level;
// Reject unknown levels (these are required to set f_code for
// motion vector encoding).
switch (avctx->level) {
case 4: // High
case 6: // High 1440
case 8: // Main
case 10: // Low
break;
default:
av_log(avctx, AV_LOG_ERROR, "Unknown MPEG-2 level %d.\n",
avctx->level);
return AVERROR(EINVAL);
}
if (avctx->height % 4096 == 0 || avctx->width % 4096 == 0) {
av_log(avctx, AV_LOG_ERROR, "MPEG-2 does not support picture "
"height or width divisible by 4096.\n");
return AVERROR(EINVAL);
}
ctx->desired_packed_headers = VA_ENC_PACKED_HEADER_SEQUENCE |
VA_ENC_PACKED_HEADER_PICTURE;
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_mpeg2_close(AVCodecContext *avctx)
{
VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
ff_cbs_fragment_free(&priv->current_fragment);
ff_cbs_close(&priv->cbc);
return ff_vaapi_encode_close(avctx);
}
#define OFFSET(x) offsetof(VAAPIEncodeMPEG2Context, x)
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
static const AVOption vaapi_encode_mpeg2_options[] = {
VAAPI_ENCODE_COMMON_OPTIONS,
VAAPI_ENCODE_RC_OPTIONS,
{ "profile", "Set profile (in profile_and_level_indication)",
OFFSET(profile), AV_OPT_TYPE_INT,
{ .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 7, FLAGS, "profile" },
#define PROFILE(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
{ .i64 = value }, 0, 0, FLAGS, "profile"
{ PROFILE("simple", FF_PROFILE_MPEG2_SIMPLE) },
{ PROFILE("main", FF_PROFILE_MPEG2_MAIN) },
#undef PROFILE
{ "level", "Set level (in profile_and_level_indication)",
OFFSET(level), AV_OPT_TYPE_INT,
{ .i64 = 4 }, 0, 15, FLAGS, "level" },
#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
{ .i64 = value }, 0, 0, FLAGS, "level"
{ LEVEL("low", 10) },
{ LEVEL("main", 8) },
{ LEVEL("high_1440", 6) },
{ LEVEL("high", 4) },
#undef LEVEL
{ NULL },
};
static const FFCodecDefault vaapi_encode_mpeg2_defaults[] = {
{ "b", "0" },
{ "bf", "1" },
{ "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_mpeg2_class = {
.class_name = "mpeg2_vaapi",
.item_name = av_default_item_name,
.option = vaapi_encode_mpeg2_options,
.version = LIBAVUTIL_VERSION_INT,
};
const FFCodec ff_mpeg2_vaapi_encoder = {
.p.name = "mpeg2_vaapi",
.p.long_name = NULL_IF_CONFIG_SMALL("MPEG-2 (VAAPI)"),
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_MPEG2VIDEO,
.priv_data_size = sizeof(VAAPIEncodeMPEG2Context),
.init = &vaapi_encode_mpeg2_init,
FF_CODEC_RECEIVE_PACKET_CB(&ff_vaapi_encode_receive_packet),
.close = &vaapi_encode_mpeg2_close,
.p.priv_class = &vaapi_encode_mpeg2_class,
.p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE |
AV_CODEC_CAP_DR1,
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
.defaults = vaapi_encode_mpeg2_defaults,
.p.pix_fmts = (const enum AVPixelFormat[]) {
AV_PIX_FMT_VAAPI,
AV_PIX_FMT_NONE,
},
.hw_configs = ff_vaapi_encode_hw_configs,
.p.wrapper_name = "vaapi",
};
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