[FFmpeg-devel] [PATCH v2 1/2] avcodec: add external enc libvvenc for H266/VVC
Nuo Mi
nuomi2021 at gmail.com
Tue May 7 04:53:14 EEST 2024
Hi Christian,
Thank you for the patch.
Let us review and merge the encoder part.
On Tue, May 7, 2024 at 1:05 AM Christian Bartnik <chris10317h5 at gmail.com>
wrote:
> From: Thomas Siedel <thomas.ff at spin-digital.com>
>
> Add external encoder VVenC for H266/VVC encoding.
> Register new encoder libvvenc.
> Add libvvenc to wrap the vvenc interface.
> libvvenc implements encoder option: preset,qp,period,subjopt,
> vvenc-params,levelidc,tier.
> Enable encoder by adding --enable-libvvenc in configure step.
>
> Co-authored-by: Christian Bartnik chris10317h5 at gmail.com
> Signed-off-by: Christian Bartnik <chris10317h5 at gmail.com>
> ---
> configure | 4 +
> libavcodec/Makefile | 1 +
> libavcodec/allcodecs.c | 1 +
> libavcodec/libvvenc.c | 501 +++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 507 insertions(+)
> create mode 100644 libavcodec/libvvenc.c
>
> diff --git a/configure b/configure
> index ed74583a6f..cb312d9c73 100755
> --- a/configure
> +++ b/configure
> @@ -293,6 +293,7 @@ External library support:
> --enable-libvorbis enable Vorbis en/decoding via libvorbis,
> native implementation exists [no]
> --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
> + --enable-libvvenc enable H.266/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]
> @@ -1966,6 +1967,7 @@ EXTERNAL_LIBRARY_LIST="
> libvmaf
> libvorbis
> libvpx
> + libvvenc
> libwebp
> libxevd
> libxeve
> @@ -3548,6 +3550,7 @@ libvpx_vp8_decoder_deps="libvpx"
> libvpx_vp8_encoder_deps="libvpx"
> libvpx_vp9_decoder_deps="libvpx"
> libvpx_vp9_encoder_deps="libvpx"
> +libvvenc_encoder_deps="libvvenc"
> libwebp_encoder_deps="libwebp"
> libwebp_anim_encoder_deps="libwebp"
> libx262_encoder_deps="libx262"
> @@ -7010,6 +7013,7 @@ enabled libvpx && {
> die "libvpx enabled but no supported decoders found"
> fi
> }
> +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 cff6347bdb..54d85f6aaa 100644
> --- a/libavcodec/Makefile
> +++ b/libavcodec/Makefile
> @@ -1155,6 +1155,7 @@ OBJS-$(CONFIG_LIBVPX_VP8_DECODER) +=
> libvpxdec.o
> OBJS-$(CONFIG_LIBVPX_VP8_ENCODER) += libvpxenc.o
> OBJS-$(CONFIG_LIBVPX_VP9_DECODER) += libvpxdec.o
> OBJS-$(CONFIG_LIBVPX_VP9_ENCODER) += libvpxenc.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 f4705651fb..bb2c3ce017 100644
> --- a/libavcodec/allcodecs.c
> +++ b/libavcodec/allcodecs.c
> @@ -801,6 +801,7 @@ extern const FFCodec ff_libvpx_vp8_encoder;
> extern const FFCodec ff_libvpx_vp8_decoder;
> extern FFCodec ff_libvpx_vp9_encoder;
> extern const FFCodec ff_libvpx_vp9_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..c459273f44
> --- /dev/null
> +++ b/libavcodec/libvvenc.c
> @@ -0,0 +1,501 @@
> +/*
> + * 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 <vvenc/version.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/mem.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 flag8bitCoding; // encode in 8bit instead of 10bit
> + 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);
> +}
> +
>
this is a very large function, mixed many things
How about we break it into smaller one(< 40 lines)
for example:
set log callback, set extra data.set color format, set vvenc params...
> +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;
>
typo for vvencPresetMode?
> + 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(¶ms);
> +
> + // set desired encoding options
> + framerate = avctx->time_base.den / avctx->time_base.num;
> + vvenc_init_default(¶ms, avctx->width, avctx->height, framerate,
> + (qp >= 0) ? 0 : avctx->bit_rate, (qp < 0) ? 32 :
> 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;
we set m_verbosity here and
>
+
> +FF_DISABLE_DEPRECATION_WARNINGS
> +
> +#if FF_API_TICKS_PER_FRAME
> + if (avctx->ticks_per_frame == 1) {
> +#endif
> + params.m_TicksPerSecond = -1; // auto mode for ticks per frame
> = 1
> +#if FF_API_TICKS_PER_FRAME
> + } else {
> + params.m_TicksPerSecond =
> + ceil((avctx->time_base.den / (double) avctx->time_base.num) *
> + (double) avctx->ticks_per_frame);
> + }
> +#endif
> +FF_ENABLE_DEPRECATION_WARNINGS
> +
> + 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;
> + params.m_inputBitDepth[0] = 10;
> +
> + if ( avctx->pix_fmt != AV_PIX_FMT_YUV420P10LE ){
> + av_log(avctx, AV_LOG_ERROR,
> + "unsupported pixel format %s, currently only support for
> yuv420p10le\n",
> + av_get_pix_fmt_name(avctx->pix_fmt));
> + return AVERROR(EINVAL);
> + }
> +
> + if ( s->options.flag8bitCoding ) {
> +#if VVENC_VERSION_MAJOR > 1 || (VVENC_VERSION_MAJOR == 1 &&
> VVENC_VERSION_MINOR > 9) || (VVENC_VERSION_MAJOR == 1 &&
> VVENC_VERSION_MINOR >= 9 && VVENC_VERSION_PATCH >= 1)
> + params.m_internalBitDepth[0] = 8;
> +#else
> + av_log(avctx, AV_LOG_ERROR,
> + "unsupported 8bit coding mode. 8bit coding needs at least
> vvenc version >= 1.9.1\n",
> + av_get_pix_fmt_name(avctx->pix_fmt));
> + return AVERROR(EINVAL);
> +#endif
> + }
> +
> + 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 (avctx->color_trc == AVCOL_TRC_SMPTE2084)
> + params.m_HdrMode = (avctx->color_primaries ==
> AVCOL_PRI_BT2020) ?
> + VVENC_HDR_PQ_BT2020 : VVENC_HDR_PQ;
> + else if (avctx->color_trc == AVCOL_TRC_BT2020_10
> + || avctx->color_trc == AVCOL_TRC_ARIB_STD_B67)
> + params.m_HdrMode = (avctx->color_trc == AVCOL_TRC_BT2020_10 ||
> + avctx->color_primaries ==
> AVCOL_PRI_BT2020 ||
> + avctx->colorspace == AVCOL_SPC_BT2020_NCL
> ||
> + avctx->colorspace == AVCOL_SPC_BT2020_CL)
> ?
> + VVENC_HDR_HLG_BT2020 : VVENC_HDR_HLG;
> + }
> +
> + if (params.m_HdrMode == VVENC_HDR_OFF
> + && (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED
> + || avctx->colorspace != AVCOL_SPC_UNSPECIFIED)) {
> + params.m_vuiParametersPresent = 1;
> + params.m_colourDescriptionPresent = true;
> + }
> +
> + 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(¶ms, 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
> +
> +#if VVENC_VERSION_MAJOR > 1 || (VVENC_VERSION_MAJOR == 1 &&
> VVENC_VERSION_MINOR > 8)
> + if(avctx->rc_max_rate) {
> + if(!avctx->bit_rate) {
> + av_log( avctx, AV_LOG_ERROR, "Rate control parameters set
> without a bitrate\n");
> + return AVERROR(EINVAL);
> + }
> + else
> + params.m_RCMaxBitrate = avctx->rc_max_rate;
> + }
> +#endif
> +
> + 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(¶ms, s->vvencEnc, ff_vvenc_log_callback);
> + ret = vvenc_encoder_open(s->vvencEnc, ¶ms);
> + 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, ¶ms); // get the adapted config
> +
> + if (params.m_verbosity >= VVENC_INFO
> + && av_log_get_level() <= AV_LOG_INFO) {
> + ff_vvenc_internalLog(avctx, params.m_verbosity, "vvenc version:
> %s\n",
> + vvenc_get_version());
> + ff_vvenc_internalLog(avctx, params.m_verbosity, "%s\n",
> + vvenc_get_config_as_string(¶ms,
> +
> params.m_verbosity));
> + } else {
> + vvencMsgLevel loglvl = VVENC_INFO;
> + if (av_log_get_level() >= AV_LOG_DEBUG)
> + loglvl = VVENC_DETAILS;
> + else if (av_log_get_level() >= AV_LOG_VERBOSE)
> + loglvl = VVENC_VERBOSE;
> +
> + av_log(avctx, av_log_get_level(), "vvenc version: %s\n",
> + vvenc_get_version());
> + av_log(avctx, av_log_get_level(), "%s\n",
> + vvenc_get_config_as_string(¶ms, loglvl ));
> + }
> +
> + 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);
>
Do we need to check the allocation result?
> +
> + 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_mallocz(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) {
>
8 bits are still wide used. Is it hard to add 8bits support?
> + 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_vvenc[] = {
> + 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 = -1}, -1 , 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},
>
+ { "bitdepth8", "set 8bit coding mode", OFFSET(options.flag8bitCoding),
> AV_OPT_TYPE_BOOL, {.i64 = 0}, 0 , 1, VE},
>
why bitdepth8 is so important, can we hide it in vvenc-params?
> + { "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 },
How to set the vvenc-params, better provide some documents
> + { "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",
> + CODEC_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_vvenc,
> + .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,
> +};
> --
> 2.34.1
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