Re: [FFmpeg-devel] [PATCH v2 08/10] avcodec: add external encoder libvvenc for H266/VVC

[quietvoid <tcchlisop0@gmail.com>]

On 24/10/2022 10.06, Thomas Siedel wrote:

> Add external encoder VVenC for H266/VVC encoding.
> Register new encoder libvvencc
> Add libvvenc to wrap the vvenc interface into ffmpeg
> libvvenc implements encoder option: 
> preset,qp,period,subjopt,vvenc-params,levelidc,tier
> Enable encoder by adding --enable-libvvenc in configure step
>
> Signed-off-by: Thomas Siedel<thomas.ff@spin-digital.com>
> ---
> configure | 5 +
> libavcodec/Makefile | 1 +
> libavcodec/allcodecs.c | 1 +
> libavcodec/libvvenc.c | 442 +++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 449 insertions(+)
> create mode 100644 libavcodec/libvvenc.c
>
> diff --git a/configure b/configure
> index 978f15f772..f8f7965371 100755
> --- a/configure
> +++ b/configure
> @@ -289,6 +289,7 @@ External library support:
> native implementation exists [no]
> --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
> --enable-libvvdec enable VVC decoding via vvdec [no]
> + --enable-libvvenc enable VVC encoding via vvenc [no]
> --enable-libwebp enable WebP encoding via libwebp [no]
> --enable-libx264 enable H.264 encoding via x264 [no]
> --enable-libx265 enable HEVC encoding via x265 [no]
> @@ -1877,6 +1878,7 @@ EXTERNAL_LIBRARY_LIST="
> libvorbis
> libvpx
> libvvdec
> + libvvenc
> libwebp
> libxml2
> libzimg
> @@ -3409,6 +3411,8 @@ libvpx_vp9_decoder_deps="libvpx"
> libvpx_vp9_encoder_deps="libvpx"
> libvvdec_decoder_deps="libvvdec"
> libvvdec_decoder_select="vvc_mp4toannexb_bsf"
> +libvvenc_encoder_deps="libvvenc"
> +libvvenc_encoder_select="atsc_a53"
> libwebp_encoder_deps="libwebp"
> libwebp_anim_encoder_deps="libwebp"
> libx262_encoder_deps="libx262"
> @@ -6740,6 +6744,7 @@ enabled libvpx && {
> fi
> }
> enabled libvvdec && require_pkg_config libvvdec "libvvdec >= 1.6.0" 
> "vvdec/vvdec.h" vvdec_get_version
> +enabled libvvenc && require_pkg_config libvvenc "libvvenc >= 1.6.1" 
> "vvenc/vvenc.h" vvenc_get_version
> enabled libwebp && {
> enabled libwebp_encoder && require_pkg_config libwebp "libwebp >= 
> 0.2.0" webp/encode.h WebPGetEncoderVersion
> diff --git a/libavcodec/Makefile b/libavcodec/Makefile
> index f4cdbc9be1..badd266e66 100644
> --- a/libavcodec/Makefile
> +++ b/libavcodec/Makefile
> @@ -1105,6 +1105,7 @@ OBJS-$(CONFIG_LIBVPX_VP8_ENCODER) += libvpxenc.o
> OBJS-$(CONFIG_LIBVPX_VP9_DECODER) += libvpxdec.o libvpx.o
> OBJS-$(CONFIG_LIBVPX_VP9_ENCODER) += libvpxenc.o libvpx.o
> OBJS-$(CONFIG_LIBVVDEC_DECODER) += libvvdec.o vvc_parse_extradata.o 
> vvc_paramset.o
> +OBJS-$(CONFIG_LIBVVENC_ENCODER) += libvvenc.o
> OBJS-$(CONFIG_LIBWEBP_ENCODER) += libwebpenc_common.o libwebpenc.o
> OBJS-$(CONFIG_LIBWEBP_ANIM_ENCODER) += libwebpenc_common.o 
> libwebpenc_animencoder.o
> OBJS-$(CONFIG_LIBX262_ENCODER) += libx264.o
> diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
> index 9813b291f4..73c36f3134 100644
> --- a/libavcodec/allcodecs.c
> +++ b/libavcodec/allcodecs.c
> @@ -794,6 +794,7 @@ extern const FFCodec ff_libvpx_vp8_decoder;
> extern FFCodec ff_libvpx_vp9_encoder;
> extern FFCodec ff_libvpx_vp9_decoder;
> extern const FFCodec ff_libvvdec_decoder;
> +extern const FFCodec ff_libvvenc_encoder;
> /* preferred over libwebp */
> extern const FFCodec ff_libwebp_anim_encoder;
> extern const FFCodec ff_libwebp_encoder;
> diff --git a/libavcodec/libvvenc.c b/libavcodec/libvvenc.c
> new file mode 100644
> index 0000000000..508fe6ceff
> --- /dev/null
> +++ b/libavcodec/libvvenc.c
> @@ -0,0 +1,442 @@
> +/*
> + * H.266 encoding using the VVenC library
> + *
> + * Copyright (C) 2022, Thomas Siedel
> + *
> + * 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 "config_components.h"
> +
> +#include <vvenc/vvenc.h>
> +#include <vvenc/vvencCfg.h>
> +
> +#include "avcodec.h"
> +#include "codec_internal.h"
> +#include "encode.h"
> +#include "internal.h"
> +#include "packet_internal.h"
> +#include "profiles.h"
> +
> +#include "libavutil/avutil.h"
> +#include "libavutil/pixdesc.h"
> +#include "libavutil/opt.h"
> +#include "libavutil/common.h"
> +#include "libavutil/imgutils.h"
> +#include "libavutil/frame.h"
> +#include "libavutil/log.h"
> +
> +typedef struct VVenCOptions {
> + int preset; // preset 0: faster 4: slower
> + int qp; // quantization parameter 0-63
> + int subjectiveOptimization; // perceptually motivated QP adaptation, 
> XPSNR based
> + int intraRefreshSec; // intra period/refresh in seconds
> + int levelIdc; // vvc level_idc
> + int tier; // vvc tier
> + AVDictionary *vvenc_opts;
> +} VVenCOptions;
> +
> +typedef struct VVenCContext {
> + AVClass *av_class;
> + VVenCOptions options; // encoder options
> + vvencEncoder *vvencEnc;
> + vvencAccessUnit *pAU;
> + bool encodeDone;
> +}VVenCContext;
> +
> +
> +static av_cold void ff_vvenc_log_callback(void *avctx, int level, 
> const char *fmt, va_list args )
> +{
> + vfprintf( level == 1 ? stderr : stdout, fmt, args );
> +}
> +
> +static void ff_vvenc_internalLog( void* ctx, int level, const char* 
> fmt, ... )
> +{
> + va_list args;
> + va_start( args, fmt );
> + ff_vvenc_log_callback( ctx, level, fmt, args );
> + va_end( args );
> +}
> +
> +static av_cold int ff_vvenc_encode_init(AVCodecContext *avctx)
> +{
> + int ret;
> + int framerate, qp, parse_ret;
> + VVenCContext *s;
> + vvenc_config params;
> + vvencPresetMode preset;
> + AVDictionaryEntry *en;
> + char statsfile[1024]="vvenc-rcstats.json";
> +
> + s = (VVenCContext*)avctx->priv_data;
> + qp = (vvencPresetMode)s->options.qp;
> + preset = (vvencPresetMode)s->options.preset;
> +
> + if( avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT ) {
> + av_log(avctx, AV_LOG_ERROR, "ff_vvenc_encode_init::init() interlaced 
> encoding not supported yet\n");
> + return AVERROR_INVALIDDATA;
> + }
> +
> + vvenc_config_default( &params );
> +
> + // set desired encoding options
> + framerate = avctx->time_base.den / avctx->time_base.num;
> + vvenc_init_default ( &params, avctx->width, avctx->height, 
> framerate, avctx->bit_rate, qp, preset );
> + params.m_FrameRate = avctx->time_base.den;
> + params.m_FrameScale = avctx->time_base.num;
> +
> + params.m_verbosity = VVENC_VERBOSE;
> + if ( av_log_get_level() >= AV_LOG_DEBUG )
> + params.m_verbosity = VVENC_DETAILS;
> + else if( av_log_get_level() >= AV_LOG_VERBOSE )
> + params.m_verbosity = VVENC_NOTICE; // output per picture info
> + else if( av_log_get_level() >= AV_LOG_INFO )
> + params.m_verbosity = VVENC_WARNING; // ffmpeg default ffmpeg loglevel
> + else
> + params.m_verbosity = VVENC_SILENT;
> +
> + if( avctx->ticks_per_frame == 1 ) {
> + params.m_TicksPerSecond = -1; // auto mode for ticks per frame = 1
> + }
> + else{
> + params.m_TicksPerSecond = 
> ceil((avctx->time_base.den/(double)avctx->time_base.num)*(double)avctx->ticks_per_frame);
> + }
> +
> + if( avctx->thread_count > 0 )
> + params.m_numThreads = avctx->thread_count;
> +
> + // GOP settings (IDR/CRA)
> + if( avctx->flags & AV_CODEC_FLAG_CLOSED_GOP )
> + params.m_DecodingRefreshType = VVENC_DRT_IDR;
> +
> + if( avctx->gop_size == 1 ) {
> + params.m_GOPSize = 1;
> + params.m_IntraPeriod = 1;
> + }
> + else {
> + params.m_IntraPeriodSec = s->options.intraRefreshSec;
> + }
> +
> + params.m_usePerceptQPA = s->options.subjectiveOptimization;
> + params.m_level = (vvencLevel)s->options.levelIdc;
> + params.m_levelTier = (vvencTier)s->options.tier;
> +
> + params.m_AccessUnitDelimiter = true;
> +
> + params.m_internChromaFormat = VVENC_CHROMA_420;
> + switch( avctx->pix_fmt ) {
> + case AV_PIX_FMT_YUV420P :
> + params.m_inputBitDepth[0] = 8;
> + break;
> + case AV_PIX_FMT_YUV420P10LE:
> + params.m_inputBitDepth[0] = 10;
> + break;
> + default: {
> + av_log(avctx, AV_LOG_ERROR, "unsupported pixel format %s, choose 
> yuv420p or yuv420p10le\n", av_get_pix_fmt_name(avctx->pix_fmt));
> + return AVERROR(EINVAL);
> + break;
> + }
> + };
> +
> + if( avctx->color_primaries != AVCOL_PRI_UNSPECIFIED )
> + params.m_colourPrimaries = (int)avctx->color_primaries;
> + if( avctx->colorspace != AVCOL_SPC_UNSPECIFIED )
> + params.m_matrixCoefficients = (int)avctx->colorspace;
> + if( avctx->color_trc != AVCOL_TRC_UNSPECIFIED ) {
> + params.m_transferCharacteristics = (int)avctx->color_trc;
> +
> + if ( params.m_transferCharacteristics == 16 )
> + params.m_HdrMode = (params.m_colourPrimaries == 9) ? VVENC_HDR_PQ_BT2020
> + : VVENC_HDR_PQ;
> + else if ( params.m_transferCharacteristics == 14 && 
> params.m_colourPrimaries == 9 )
> + params.m_HdrMode = VVENC_HDR_HLG_BT2020;


Should probably still be using the AVColor enum in the conditions 
instead of the values.


> + else if ( params.m_transferCharacteristics == 1 && 
> params.m_colourPrimaries == 1 &&
> + params.m_matrixCoefficients == 1 )
> + params.m_HdrMode = VVENC_HDR_HLG;


Is this not supposed to be VVENC_HDR_OFF?
HLG should be matching TRC 14, not 1.


> + }
> +
> + params.m_RCNumPasses = 1;
> + en = NULL;
> + while ((en = av_dict_get(s->options.vvenc_opts, "", en, 
> AV_DICT_IGNORE_SUFFIX))) {
> + av_log(avctx, AV_LOG_DEBUG, "vvenc_set_param: '%s:%s'\n", en->key, 
> en->value);
> + parse_ret = vvenc_set_param(&params, en->key, en->value);
> + switch (parse_ret)
> + {
> + case VVENC_PARAM_BAD_NAME:
> + av_log(avctx, AV_LOG_WARNING,"Unknown vvenc option: %s.\n", en->key);
> + break;
> + case VVENC_PARAM_BAD_VALUE:
> + av_log(avctx, AV_LOG_WARNING,
> + "Invalid vvenc value for %s: %s.\n", en->key, en->value);
> + break;
> + default:
> + break;
> + }
> +
> + if (memcmp( en->key, "rcstatsfile", 11 ) == 0 ||
> + memcmp( en->key, "RCStatsFile", 11 ) == 0) {
> + strncpy(statsfile, en->value, sizeof(statsfile)-1);
> + statsfile[sizeof(statsfile)-1] = '\0';
> + }
> + }
> +
> + if( params.m_RCPass != -1 && params.m_RCNumPasses == 1 )
> + params.m_RCNumPasses = 2; // enable 2pass mode
> +
> + s->vvencEnc = vvenc_encoder_create();
> + if( NULL == s->vvencEnc ) {
> + av_log(avctx, AV_LOG_ERROR, "cannot create vvc encoder (vvenc)\n");
> + return AVERROR(ENOMEM);
> + }
> +
> + vvenc_set_msg_callback( &params, s->vvencEnc, ff_vvenc_log_callback );
> + ret = vvenc_encoder_open( s->vvencEnc, &params );
> + if( 0 != ret ) {
> + av_log(avctx, AV_LOG_ERROR, "cannot open vvc encoder (vvenc): %s\n", 
> vvenc_get_last_error(s->vvencEnc));
> + vvenc_encoder_close( s->vvencEnc );
> + return AVERROR(EINVAL);
> + }
> +
> + vvenc_get_config( s->vvencEnc, &params ); // get the adapted config
> +
> + if( params.m_verbosity >= VVENC_DETAILS && av_log_get_level() < 
> AV_LOG_DEBUG ) {
> + ff_vvenc_internalLog( avctx, params.m_verbosity, "vvenc version: 
> %s\n", vvenc_get_version() );
> + ff_vvenc_internalLog( avctx, params.m_verbosity, "vvencinfo:\n%s\n", 
> vvenc_get_config_as_string( &params, VVENC_DETAILS) );
> + }
> + else {
> + av_log(avctx, AV_LOG_DEBUG, "vvenc version: %s\n", vvenc_get_version());
> + av_log(avctx, AV_LOG_DEBUG, "vvencinfo:\n%s\n", 
> vvenc_get_config_as_string( &params, VVENC_DETAILS));
> + }
> +
> + if( params.m_RCNumPasses == 2 ) {
> + ret = vvenc_init_pass( s->vvencEnc, params.m_RCPass-1, &statsfile[0] );
> + if( 0 != ret ) {
> + av_log(avctx, AV_LOG_ERROR, "cannot init pass %d for vvc encoder 
> (vvenc): %s\n", params.m_RCPass, vvenc_get_last_error(s->vvencEnc));
> + vvenc_encoder_close( s->vvencEnc );
> + return AVERROR(EINVAL);
> + }
> + }
> +
> + s->pAU = vvenc_accessUnit_alloc();
> + vvenc_accessUnit_alloc_payload( s->pAU, avctx->width * avctx->height );
> +
> + if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
> + ret = vvenc_get_headers( s->vvencEnc, s->pAU );
> + if( 0 != ret ) {
> + av_log(avctx, AV_LOG_ERROR, "cannot get headers (SPS,PPS) from vvc 
> encoder(vvenc): %s\n", vvenc_get_last_error(s->vvencEnc));
> + vvenc_encoder_close( s->vvencEnc );
> + return AVERROR(EINVAL);
> + }
> +
> + if (s->pAU->payloadUsedSize <= 0) {
> + vvenc_encoder_close( s->vvencEnc );
> + return AVERROR_INVALIDDATA;
> + }
> +
> + avctx->extradata_size = s->pAU->payloadUsedSize;
> + avctx->extradata = av_malloc(avctx->extradata_size + 
> AV_INPUT_BUFFER_PADDING_SIZE);
> + if (!avctx->extradata) {
> + av_log(avctx, AV_LOG_ERROR,
> + "Cannot allocate VVC header of size %d.\n", avctx->extradata_size);
> + vvenc_encoder_close( s->vvencEnc );
> + return AVERROR(ENOMEM);
> + }
> +
> + memcpy(avctx->extradata, s->pAU->payload, avctx->extradata_size);
> + memset(avctx->extradata + avctx->extradata_size, 0, 
> AV_INPUT_BUFFER_PADDING_SIZE);
> + }
> + s->encodeDone = false;
> + return 0;
> +}
> +
> +static av_cold int ff_vvenc_encode_close(AVCodecContext *avctx)
> +{
> + VVenCContext *s = (VVenCContext*)avctx->priv_data;
> + if( s->vvencEnc ) {
> + if( av_log_get_level() >= AV_LOG_VERBOSE )
> + vvenc_print_summary(s->vvencEnc);
> +
> + if( 0 != vvenc_encoder_close(s->vvencEnc) ) {
> + av_log(avctx, AV_LOG_ERROR, "cannot close vvenc\n" );
> + return -1;
> + }
> + }
> +
> + vvenc_accessUnit_free ( s->pAU, true );
> +
> + return 0;
> +}
> +
> +static av_cold int ff_vvenc_encode_frame( AVCodecContext *avctx, 
> AVPacket *pkt,const AVFrame *frame, int *got_packet )
> +{
> + VVenCContext *s = (VVenCContext*)avctx->priv_data;
> + vvencYUVBuffer* pyuvbuf;
> + vvencYUVBuffer yuvbuf;
> + int pict_type;
> + int ret;
> +
> + pyuvbuf = NULL;
> + if (frame) {
> + if( avctx->pix_fmt == AV_PIX_FMT_YUV420P10LE ) {
> + vvenc_YUVBuffer_default( &yuvbuf );
> + yuvbuf.planes[0].ptr = (int16_t*)frame->data[0];
> + yuvbuf.planes[1].ptr = (int16_t*)frame->data[1];
> + yuvbuf.planes[2].ptr = (int16_t*)frame->data[2];
> +
> + yuvbuf.planes[0].width = frame->width;
> + yuvbuf.planes[0].height = frame->height;
> + yuvbuf.planes[0].stride = frame->linesize[0] >> 1; // stride is used 
> in samples (16bit) in vvenc, ffmpeg uses stride in bytes
> +
> + yuvbuf.planes[1].width = frame->width >>1;
> + yuvbuf.planes[1].height = frame->height >>1;
> + yuvbuf.planes[1].stride = frame->linesize[1] >> 1;
> +
> + yuvbuf.planes[2].width = frame->width >>1;
> + yuvbuf.planes[2].height = frame->height >>1;
> + yuvbuf.planes[2].stride = frame->linesize[2] >> 1;
> +
> + yuvbuf.cts = frame->pts;
> + yuvbuf.ctsValid = true;
> + pyuvbuf = &yuvbuf;
> + }
> + else {
> + av_log(avctx, AV_LOG_ERROR, "unsupported input colorspace! input 
> must be yuv420p10le");
> + return AVERROR(EINVAL);
> + }
> + }
> +
> + if( ! s->encodeDone ) {
> + ret = vvenc_encode( s->vvencEnc, pyuvbuf, s->pAU, &s->encodeDone );
> + if( ret != 0 ) {
> + av_log(avctx, AV_LOG_ERROR, "error in vvenc::encode - ret:%d\n", ret);
> + return AVERROR(EINVAL);
> + }
> + }
> + else {
> + *got_packet = 0;
> + return 0;
> + }
> +
> + if( s->pAU->payloadUsedSize > 0 ) {
> + ret = ff_get_encode_buffer(avctx, pkt, s->pAU->payloadUsedSize, 0);
> + if (ret < 0) {
> + av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
> + return ret;
> + }
> +
> + memcpy( pkt->data, s->pAU->payload, s->pAU->payloadUsedSize );
> +
> + if( s->pAU->ctsValid )
> + pkt->pts = s->pAU->cts;
> + if( s->pAU->dtsValid )
> + pkt->dts = s->pAU->dts;
> + pkt->flags |= AV_PKT_FLAG_KEY*s->pAU->rap;
> +
> + switch (s->pAU->sliceType) {
> + case VVENC_I_SLICE:
> + pict_type = AV_PICTURE_TYPE_I;
> + break;
> + case VVENC_P_SLICE:
> + pict_type = AV_PICTURE_TYPE_P;
> + break;
> + case VVENC_B_SLICE:
> + pict_type = AV_PICTURE_TYPE_B;
> + break;
> + default:
> + av_log(avctx, AV_LOG_ERROR, "Unknown picture type encountered.\n");
> + return AVERROR_EXTERNAL;
> + }
> +
> + ff_side_data_set_encoder_stats(pkt, 0, NULL, 0, pict_type);
> +
> + *got_packet = 1;
> +
> + return 0;
> + }
> + else
> + {
> + *got_packet = 0;
> + return 0;
> + }
> +
> + return 0;
> +}
> +
> +static const enum AVPixelFormat pix_fmts_vvc[] = {
> + //AV_PIX_FMT_YUV420P, // TODO
> + AV_PIX_FMT_YUV420P10LE,
> + AV_PIX_FMT_NONE
> +};
> +
> +#define OFFSET(x) offsetof(VVenCContext, x)
> +#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
> +static const AVOption libvvenc_options[] = {
> + {"preset", "set encoding preset(0: faster - 4: slower", OFFSET( 
> options.preset), AV_OPT_TYPE_INT, {.i64 = 2} , 0 , 4 , VE, "preset"},
> + { "faster", "0", 0, AV_OPT_TYPE_CONST, {.i64 = 
> VVENC_FASTER},INT_MIN, INT_MAX, VE, "preset" },
> + { "fast", "1", 0, AV_OPT_TYPE_CONST, {.i64 = VVENC_FAST}, INT_MIN, 
> INT_MAX, VE, "preset" },
> + { "medium", "2", 0, AV_OPT_TYPE_CONST, {.i64 = 
> VVENC_MEDIUM},INT_MIN, INT_MAX, VE, "preset" },
> + { "slow", "3", 0, AV_OPT_TYPE_CONST, {.i64 = VVENC_SLOW}, INT_MIN, 
> INT_MAX, VE, "preset" },
> + { "slower", "4", 0, AV_OPT_TYPE_CONST, {.i64 = 
> VVENC_SLOWER},INT_MIN, INT_MAX, VE, "preset" },
> + {"qp" , "set quantization" , OFFSET(options.qp) , AV_OPT_TYPE_INT, 
> {.i64 = 32}, 0 , 63 ,VE, "qp_mode" },
> + {"period" , "set (intra) refresh period in seconds" , 
> OFFSET(options.intraRefreshSec) , AV_OPT_TYPE_INT, {.i64 = 1}, 1 , 
> INT_MAX ,VE,"irefreshsec" },
> + {"subjopt", "set subjective (perceptually motivated) optimization" , 
> OFFSET(options.subjectiveOptimization) , AV_OPT_TYPE_BOOL, {.i64 = 1}, 
> 0 , 1, VE},
> + {"vvenc-params", "set the vvenc configuration using a :-separated 
> list of key=value parameters", OFFSET(options.vvenc_opts), 
> AV_OPT_TYPE_DICT, { 0 }, 0, 0, VE },
> + {"levelidc", "vvc level_idc", OFFSET( options.levelIdc), 
> AV_OPT_TYPE_INT, {.i64 = 0}, 0, 105, VE, "levelidc"},
> + {"0" , "auto" , 0, AV_OPT_TYPE_CONST, {.i64 = 0}, INT_MIN, INT_MAX, 
> VE, "levelidc"},
> + {"1" , "1" , 0, AV_OPT_TYPE_CONST, {.i64 = 16},INT_MIN, INT_MAX, VE, 
> "levelidc"},
> + {"2" , "2" , 0, AV_OPT_TYPE_CONST, {.i64 = 32},INT_MIN, INT_MAX, VE, 
> "levelidc"},
> + {"2.1" , "2.1" , 0, AV_OPT_TYPE_CONST, {.i64 = 35},INT_MIN, INT_MAX, 
> VE, "levelidc"},
> + {"3" , "3" , 0, AV_OPT_TYPE_CONST, {.i64 = 48},INT_MIN, INT_MAX, VE, 
> "levelidc"},
> + {"3.1" , "3.1" , 0, AV_OPT_TYPE_CONST, {.i64 = 51},INT_MIN, INT_MAX, 
> VE, "levelidc"},
> + {"4" , "4" , 0, AV_OPT_TYPE_CONST, {.i64 = 64},INT_MIN, INT_MAX, VE, 
> "levelidc"},
> + {"4.1" , "4.1" , 0, AV_OPT_TYPE_CONST, {.i64 = 67},INT_MIN, INT_MAX, 
> VE, "levelidc"},
> + {"5" , "5" , 0, AV_OPT_TYPE_CONST, {.i64 = 80},INT_MIN, INT_MAX, VE, 
> "levelidc"},
> + {"5.1" , "5.1" , 0, AV_OPT_TYPE_CONST, {.i64 = 83},INT_MIN, INT_MAX, 
> VE, "levelidc"},
> + {"5.2" , "5.2" , 0, AV_OPT_TYPE_CONST, {.i64 = 86},INT_MIN, INT_MAX, 
> VE, "levelidc"},
> + {"6" , "6" , 0, AV_OPT_TYPE_CONST, {.i64 = 96},INT_MIN, INT_MAX, VE, 
> "levelidc"},
> + {"6.1" , "6.1" , 0, AV_OPT_TYPE_CONST, {.i64 = 99},INT_MIN, INT_MAX, 
> VE, "levelidc"},
> + {"6.2" , "6.2" , 0, AV_OPT_TYPE_CONST, {.i64 = 102},INT_MIN, 
> INT_MAX, VE, "levelidc"},
> + {"6.3" , "6.3" , 0, AV_OPT_TYPE_CONST, {.i64 = 105},INT_MIN, 
> INT_MAX, VE, "levelidc"},
> + {"tier", "set vvc tier", OFFSET( options.tier), AV_OPT_TYPE_INT, 
> {.i64 = 0}, 0 , 1 , VE, "tier"},
> + {"main", "main" , 0, AV_OPT_TYPE_CONST, {.i64 = 0}, INT_MIN, 
> INT_MAX, VE, "tier"},
> + {"high", "high" , 0, AV_OPT_TYPE_CONST, {.i64 = 1}, INT_MIN, 
> INT_MAX, VE, "tier"},
> + {NULL}
> +};
> +
> +static const AVClass class_libvvenc = {
> + .class_name = "libvvenc-vvc encoder",
> + .item_name = av_default_item_name,
> + .option = libvvenc_options,
> + .version = LIBAVUTIL_VERSION_INT,
> +};
> +
> +FFCodec ff_libvvenc_encoder = {
> + .p.name = "libvvenc",
> + .p.long_name = "H.266 / VVC Encoder VVenC",
> + .p.type = AVMEDIA_TYPE_VIDEO,
> + .p.id = AV_CODEC_ID_VVC,
> + .p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_OTHER_THREADS,
> + .p.profiles = NULL_IF_CONFIG_SMALL(ff_vvc_profiles),
> + .p.priv_class = &class_libvvenc,
> + .p.wrapper_name = "libvvenc",
> + .priv_data_size = sizeof(VVenCContext),
> + .p.pix_fmts = pix_fmts_vvc,
> + .init = ff_vvenc_encode_init,
> + FF_CODEC_ENCODE_CB(ff_vvenc_encode_frame),
> + .close = ff_vvenc_encode_close,
> + .caps_internal = FF_CODEC_CAP_AUTO_THREADS,
> +};
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