[FFmpeg-devel] [PATCH V1 1/2] lavc/svt_hevc: add libsvt hevc encoder wrapper.

mypopy at gmail.com mypopy at gmail.com
Mon Dec 3 04:09:43 EET 2018


On Sun, Dec 2, 2018 at 6:25 PM Steven Liu <lq at chinaffmpeg.org> wrote:
>
>
>
> > On Dec 2, 2018, at 13:38, Jun Zhao <mypopydev at gmail.com> wrote:
> >
> > base on patch by Huang, Zhengxu from https://github.com/intel/SVT-HEVC
> >
> > Signed-off-by: Huang, Zhengxu <zhengxu.huang at intel.com>
> > Signed-off-by: hassene <hassene.tmar at intel.com>
> > Signed-off-by: Jun Zhao <jun.zhao at intel.com>
> > ---
> > configure                |    4 +
> > libavcodec/Makefile      |    1 +
> > libavcodec/allcodecs.c   |    1 +
> > libavcodec/libsvt_hevc.c |  370 ++++++++++++++++++++++++++++++++++++++++++++++
> > 4 files changed, 376 insertions(+), 0 deletions(-)
> > create mode 100644 libavcodec/libsvt_hevc.c
> >
> > diff --git a/configure b/configure
> > index 54b7e11..c3dca73 100755
> > --- a/configure
> > +++ b/configure
> > @@ -263,6 +263,7 @@ External library support:
> >   --enable-libspeex        enable Speex de/encoding via libspeex [no]
> >   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
> >   --enable-libssh          enable SFTP protocol via libssh [no]
> > +  --enable-libsvt          enable HEVC encoding via svt [no]
> >   --enable-libtensorflow   enable TensorFlow as a DNN module backend
> >                            for DNN based filters like sr [no]
> >   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
> > @@ -1665,6 +1666,7 @@ EXTERNAL_LIBRARY_GPL_LIST="
> >     libcdio
> >     libdavs2
> >     librubberband
> > +    libsvt
> >     libvidstab
> >     libx264
> >     libx265
> > @@ -3087,6 +3089,7 @@ pcm_mulaw_at_encoder_select="audio_frame_queue"
> > chromaprint_muxer_deps="chromaprint"
> > h264_videotoolbox_encoder_deps="pthreads"
> > h264_videotoolbox_encoder_select="videotoolbox_encoder"
> > +hevc_svt_encoder_deps="libsvt"
> > hevc_videotoolbox_encoder_deps="pthreads"
> > hevc_videotoolbox_encoder_select="videotoolbox_encoder"
> > libaom_av1_decoder_deps="libaom"
> > @@ -6147,6 +6150,7 @@ enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
> > enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
> > enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
> > enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
> > +enabled libsvt            && require_pkg_config libsvt  svt  EbApi.h EbInitHandle
> > enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
> > enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
> > enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
> > diff --git a/libavcodec/Makefile b/libavcodec/Makefile
> > index 5feadac..1a8b547 100644
> > --- a/libavcodec/Makefile
> > +++ b/libavcodec/Makefile
> > @@ -374,6 +374,7 @@ OBJS-$(CONFIG_HEVC_QSV_DECODER)        += qsvdec_h2645.o
> > OBJS-$(CONFIG_HEVC_QSV_ENCODER)        += qsvenc_hevc.o hevc_ps_enc.o       \
> >                                           hevc_data.o
> > OBJS-$(CONFIG_HEVC_RKMPP_DECODER)      += rkmppdec.o
> > +OBJS-$(CONFIG_HEVC_SVT_ENCODER)        += libsvt_hevc.o
> > OBJS-$(CONFIG_HEVC_VAAPI_ENCODER)      += vaapi_encode_h265.o h265_profile_level.o
> > OBJS-$(CONFIG_HEVC_V4L2M2M_DECODER)    += v4l2_m2m_dec.o
> > OBJS-$(CONFIG_HEVC_V4L2M2M_ENCODER)    += v4l2_m2m_enc.o
> > diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
> > index d70646e..ff8ea94 100644
> > --- a/libavcodec/allcodecs.c
> > +++ b/libavcodec/allcodecs.c
> > @@ -749,6 +749,7 @@ extern AVCodec ff_hevc_cuvid_decoder;
> > extern AVCodec ff_hevc_mediacodec_decoder;
> > extern AVCodec ff_hevc_nvenc_encoder;
> > extern AVCodec ff_hevc_qsv_encoder;
> > +extern AVCodec ff_hevc_svt_encoder;
> > extern AVCodec ff_hevc_v4l2m2m_encoder;
> > extern AVCodec ff_hevc_vaapi_encoder;
> > extern AVCodec ff_hevc_videotoolbox_encoder;
> > diff --git a/libavcodec/libsvt_hevc.c b/libavcodec/libsvt_hevc.c
> > new file mode 100644
> > index 0000000..1e10111
> > --- /dev/null
> > +++ b/libavcodec/libsvt_hevc.c
> > @@ -0,0 +1,370 @@
> > +/*
> > +* Scalable Video Technology for HEVC encoder library plugin
> > +*
> > +* Copyright (c) 2018 Intel Corporation
> > +*
> > +* This program 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.
> > +*
> > +* This program 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 this program; if not, write to the Free Software
> > +* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> > +*/
> > +
> > +#include "EbErrorCodes.h"
> > +#include "EbTime.h"
> > +#include "EbApi.h"
> > +
> > +#include "libavutil/common.h"
> > +#include "libavutil/frame.h"
> > +#include "libavutil/opt.h"
> > +
> > +#include "internal.h"
> > +#include "avcodec.h"
> > +
> > +typedef struct SvtEncoder {
> > +    EB_H265_ENC_CONFIGURATION           enc_params;
> > +    EB_COMPONENTTYPE                    *svt_handle;
> > +    EB_BUFFERHEADERTYPE                 *in_buf;
> > +    EB_BUFFERHEADERTYPE                 *out_buf;
> > +    int                                 raw_size;
> > +} SvtEncoder;
> > +
> > +typedef struct SvtParams {
> > +    int vui_info;
> > +    int hierarchical_level;
> > +    int la_depth;
> > +    int intra_ref_type;
> > +    int enc_mode;
> > +    int rc_mode;
> > +    int scd;
> > +    int tune;
> > +    int qp;
> > +    int profile;
> > +    int base_layer_switch_mode;
> > +}SvtParams;
> > +
> > +typedef struct SvtContext {
> > +    AVClass     *class;
> > +    SvtEncoder  *svt_enc;
> > +    SvtParams   svt_param;
> > +    int         eos_flag;
> > +} SvtContext;
> > +
> > +static void free_buffer(SvtEncoder *svt_enc)
> > +{
> > +    if (svt_enc->in_buf) {
> > +        EB_H265_ENC_INPUT *in_data = (EB_H265_ENC_INPUT *)svt_enc->in_buf->pBuffer;
> > +        av_freep(&in_data);
> > +        av_freep(&svt_enc->in_buf);
> > +    }
> > +    av_freep(&svt_enc->out_buf);
> > +}
> > +
> > +static EB_ERRORTYPE alloc_buffer(EB_H265_ENC_CONFIGURATION *config, SvtEncoder *svt_enc)
> > +{
> > +    EB_ERRORTYPE       ret       = EB_ErrorNone;
> > +
> > +    const int    pack_mode_10bit   = (config->encoderBitDepth > 8) && (config->compressedTenBitFormat == 0) ? 1 : 0;
> > +    const size_t luma_size_8bit    = config->sourceWidth * config->sourceHeight * (1 << pack_mode_10bit);
> > +    const size_t luma_size_10bit   = (config->encoderBitDepth > 8 && pack_mode_10bit == 0) ? luma_size_8bit : 0;
> > +
> > +    svt_enc->raw_size = (luma_size_8bit + luma_size_10bit) * 3 / 2;
> > +
> > +    // allocate buffer for in and out
> > +    svt_enc->in_buf           = av_mallocz(sizeof(EB_BUFFERHEADERTYPE));
> > +    svt_enc->out_buf          = av_mallocz(sizeof(EB_BUFFERHEADERTYPE));
> > +    if (!svt_enc->in_buf || !svt_enc->out_buf)
> > +        goto failed;
> > +
> > +    svt_enc->in_buf->pBuffer  = av_mallocz(sizeof(EB_H265_ENC_INPUT));
> > +    if (!svt_enc->in_buf->pBuffer)
> > +        goto failed;
> > +
> > +    svt_enc->in_buf->nSize        = sizeof(EB_BUFFERHEADERTYPE);
> > +    svt_enc->in_buf->pAppPrivate  = NULL;
> > +    svt_enc->out_buf->nSize       = sizeof(EB_BUFFERHEADERTYPE);
> > +    svt_enc->out_buf->nAllocLen   = svt_enc->raw_size;
> > +    svt_enc->out_buf->pAppPrivate = NULL;
> > +
> > +    return ret;
> > +
> > +failed:
> > +    free_buffer(svt_enc);
> > +    return AVERROR(ENOMEM);
> > +}
> > +
> > +static int error_mapping(int val)
> > +{
> > +    if (val == EB_ErrorInsufficientResources)
> > +        return AVERROR(ENOMEM);
> > +    if ((val == EB_ErrorUndefined) || (val == EB_ErrorInvalidComponent) ||
> > +        (val == EB_ErrorBadParameter))
> > +        return AVERROR(EINVAL);
> > +    return AVERROR_EXTERNAL;
> > +}
> > +
> > +static EB_ERRORTYPE config_enc_params(EB_H265_ENC_CONFIGURATION  *param, AVCodecContext *avctx)
> > +{
> > +    SvtContext *q       = avctx->priv_data;
> > +    SvtEncoder *svt_enc = q->svt_enc;
> > +    EB_ERRORTYPE    ret = EB_ErrorNone;
> > +    int         tenBits = 0;
> Camelcase ?

Will change and follow FFmpeg's coding style
>
> > +
> > +    param->sourceWidth     = avctx->width;
> > +    param->sourceHeight    = avctx->height;
> > +
> > +    if (avctx->pix_fmt == AV_PIX_FMT_YUV420P10LE) {
> > +        av_log(avctx, AV_LOG_DEBUG , "Encoder 10 bits depth input\n");
> > +        param->compressedTenBitFormat = 0;
> > +        tenBits = 1;
> > +    }
> > +
> maybe need check q->svt_param first.

Yes, good catch.
>
> >
> > +    // Update param from options
> > +    param->hierarchicalLevels     = q->svt_param.hierarchical_level;
> > +    param->encMode                = q->svt_param.enc_mode;
> > +    param->intraRefreshType       = q->svt_param.intra_ref_type;
> > +    param->profile                = q->svt_param.profile;
> > +    param->rateControlMode        = q->svt_param.rc_mode;
> > +    param->sceneChangeDetection   = q->svt_param.scd;
> > +    param->tune                   = q->svt_param.tune;
> > +    param->baseLayerSwitchMode    = q->svt_param.base_layer_switch_mode;
> > +    param->qp                     = q->svt_param.qp;
> > +
> > +    param->targetBitRate          = avctx->bit_rate;
> > +    param->intraPeriodLength      = avctx->gop_size-1;
> > +    param->frameRateNumerator     = avctx->time_base.den;
> > +    param->frameRateDenominator   = avctx->time_base.num * avctx->ticks_per_frame;
> > +
> > +    param->codeVpsSpsPps          = 0;
> > +
> > +    if (q->svt_param.vui_info)
> > +        param->videoUsabilityInfo = q->svt_param.vui_info;
> > +    if (q->svt_param.la_depth != -1)
> > +        param->lookAheadDistance  = q->svt_param.la_depth;
> > +
> > +    if (tenBits == 1) {
> > +        param->encoderBitDepth        = 10;
> > +        param->profile                = 2;
> > +    }
> > +
> > +    ret = alloc_buffer(param, svt_enc);
> > +
> > +    return ret;
> > +}
> > +
> > +static void read_in_data(EB_H265_ENC_CONFIGURATION *config, const AVFrame* frame, EB_BUFFERHEADERTYPE *headerPtr)
> > +{
> > +    unsigned int is16bit = config->encoderBitDepth > 8;
> > +    unsigned long long lumaReadSize = (unsigned long long)config->sourceWidth * config->sourceHeight<< is16bit;
> what about use uint64_t?
> > +    EB_H265_ENC_INPUT *in_data = (EB_H265_ENC_INPUT*)headerPtr->pBuffer;
> > +
> > +    // support yuv420p and yuv420p010
> > +    in_data->luma = frame->data[0];
> > +    in_data->cb   = frame->data[1];
> > +    in_data->cr   = frame->data[2];
> > +
> > +    // stride info
> > +    in_data->yStride  = frame->linesize[0] >> is16bit;
> > +    in_data->cbStride = frame->linesize[1] >> is16bit;
> > +    in_data->crStride = frame->linesize[2] >> is16bit;
> > +
> > +    headerPtr->nFilledLen   += lumaReadSize * 3/2u;
> > +}
> > +
> > +static av_cold int eb_enc_init(AVCodecContext *avctx)
> > +{
> > +    SvtContext   *q = avctx->priv_data;
> > +    SvtEncoder   *svt_enc = NULL;
> > +    EB_ERRORTYPE ret = EB_ErrorNone;
> > +
> > +    q->svt_enc  = av_mallocz(sizeof(*q->svt_enc));
> > +    if (!q->svt_enc)
> > +        return AVERROR(ENOMEM);
> > +    svt_enc = q->svt_enc;
> > +
> > +    q->eos_flag = 0;
> > +
> > +    ret = EbInitHandle(&svt_enc->svt_handle, q, &svt_enc->enc_params);
> > +    if (ret != EB_ErrorNone)
> > +        goto failed_init;
> > +
> > +    ret = config_enc_params(&svt_enc->enc_params, avctx);
> > +    if (ret != EB_ErrorNone)
> > +        goto failed_init;
> > +
> > +    ret = EbH265EncSetParameter(svt_enc->svt_handle, &svt_enc->enc_params);
> > +    if (ret != EB_ErrorNone)
> > +        goto failed_init;
> > +
> > +    ret = EbInitEncoder(svt_enc->svt_handle);
> > +    if (ret != EB_ErrorNone)
> > +        goto failed_init;
> > +
> > +    if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
> > +
> > +        EB_BUFFERHEADERTYPE headerPtr;
> > +        headerPtr.nSize       = sizeof(EB_BUFFERHEADERTYPE);
> > +        headerPtr.nFilledLen  = 0;
> > +        headerPtr.pBuffer     = av_malloc(10 * 1024 * 1024);
> > +        headerPtr.nAllocLen   = (10 * 1024 * 1024);
> > +
> > +        if (!headerPtr.pBuffer)
> > +            return AVERROR(ENOMEM);
> > +
> > +        ret = EbH265EncStreamHeader(svt_enc->svt_handle, &headerPtr);
> > +        if (ret != EB_ErrorNone) {
> > +            av_freep(&headerPtr.pBuffer);
> > +            goto failed_init;
> > +        }
> > +        avctx->extradata_size = headerPtr.nFilledLen;
> > +        avctx->extradata = av_malloc(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
> > +        if (!avctx->extradata) {
> > +            av_log(avctx, AV_LOG_ERROR,
> > +                   "Cannot allocate HEVC header of size %d.\n", avctx->extradata_size);
> > +            return AVERROR(ENOMEM);
> > +        }
> > +        memcpy(avctx->extradata, headerPtr.pBuffer, avctx->extradata_size);
> > +        av_freep(&headerPtr.pBuffer);
> > +    }
> > +    return 0;
> > +
> > +failed_init:
> add av_free(q->svt_enc) ?

Will double check the error handle (James given the same comments for
this part)
>
> > +    return error_mapping(ret);
> > +}
> > +
> > +static int eb_send_frame(AVCodecContext *avctx, const AVFrame *frame)
> > +{
> > +    SvtContext           *q = avctx->priv_data;
> > +    SvtEncoder           *svt_enc = q->svt_enc;
> > +    EB_BUFFERHEADERTYPE  *headerPtr = svt_enc->in_buf;
> > +    int                  ret = 0;
> > +
> > +    if (!frame) {
> > +        EB_BUFFERHEADERTYPE headerPtrLast;
> > +        headerPtrLast.nAllocLen   = 0;
> > +        headerPtrLast.nFilledLen  = 0;
> > +        headerPtrLast.nTickCount  = 0;
> > +        headerPtrLast.pAppPrivate = NULL;
> > +        headerPtrLast.nOffset     = 0;
> > +        headerPtrLast.pBuffer     = NULL;
> > +        headerPtrLast.nFlags      = EB_BUFFERFLAG_EOS;
> > +        EbH265EncSendPicture(svt_enc->svt_handle, &headerPtrLast);
> > +        q->eos_flag = 1;
> > +        av_log(avctx, AV_LOG_DEBUG, "Finish sending frames!!!\n");
> > +        return ret;
> > +    }
> > +
> > +    read_in_data(&svt_enc->enc_params, frame, headerPtr);
> > +
> > +    headerPtr->nOffset      = 0;
> > +    headerPtr->nFlags       = 0;
> > +    headerPtr->pAppPrivate  = NULL;
> > +    headerPtr->pts          = frame->pts;
> > +    headerPtr->sliceType    = INVALID_SLICE;
> > +    EbH265EncSendPicture(svt_enc->svt_handle, headerPtr);
> > +
> > +    return ret;
> > +}
> > +
> > +static int eb_receive_packet(AVCodecContext *avctx, AVPacket *pkt)
> > +{
> > +    SvtContext  *q = avctx->priv_data;
> > +    SvtEncoder  *svt_enc = q->svt_enc;
> > +    EB_BUFFERHEADERTYPE   *headerPtr = svt_enc->out_buf;
> > +    EB_ERRORTYPE          stream_status = EB_ErrorNone;
> > +    int ret = 0;
> > +
> > +    if ((ret = ff_alloc_packet2(avctx, pkt, svt_enc->raw_size, 0)) < 0) {
> > +        av_log(avctx, AV_LOG_ERROR, "Failed to allocate output packet.\n");
> > +        return ret;
> > +    }
> > +    headerPtr->pBuffer = pkt->data;
> > +    stream_status = EbH265GetPacket(svt_enc->svt_handle, headerPtr, q->eos_flag);
> > +    if (stream_status == EB_NoErrorEmptyQueue)
> > +        return AVERROR(EAGAIN);
> > +
> > +    pkt->size = headerPtr->nFilledLen;
> > +    pkt->pts  = headerPtr->pts;
> > +    pkt->dts  = headerPtr->dts;
> > +    if (headerPtr->sliceType == IDR_SLICE)
> > +        pkt->flags |= AV_PKT_FLAG_KEY;
> > +    if (headerPtr->sliceType == NON_REF_SLICE)
> > +        pkt->flags |= AV_PKT_FLAG_DISPOSABLE;
> > +
> > +    ret = (headerPtr->nFlags & EB_BUFFERFLAG_EOS) ? AVERROR_EOF : 0;
> > +    return ret;
> > +}
> > +
> > +static av_cold int eb_enc_close(AVCodecContext *avctx)
> > +{
> > +    SvtContext *q = avctx->priv_data;
> > +    SvtEncoder   *svt_enc = q->svt_enc;
> > +
> > +    EbDeinitEncoder(svt_enc->svt_handle);
> > +    EbDeinitHandle(svt_enc->svt_handle);
> > +
> > +    free_buffer(svt_enc);
> > +    av_freep(&svt_enc);
> > +
> > +    return 0;
> > +}
> > +
> > +#define OFFSET(x) offsetof(SvtContext, x)
> > +#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
> > +static const AVOption options[] = {
> > +    {"vui", "Enable vui info", OFFSET(svt_param.vui_info), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
> > +    {"hielevel", "Hierarchical Prediction Levels [0,3]", OFFSET(svt_param.hierarchical_level), AV_OPT_TYPE_INT, { .i64 = 3 }, 0, 3, VE },
> > +    {"la_depth", "Look Ahead Distance [0,256]", OFFSET(svt_param.la_depth), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 256, VE },
> > +    {"intra_ref_type", "Intra Refresh Type 0: No intra refresh 1: CRA (Open GOP) 2: IDR", OFFSET(svt_param.intra_ref_type), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, 2, VE },
> > +    {"enc_p", "Encoding preset [0,12] (for tune 0 and >=4k resolution), [0,10] (for >= 1080p resolution), [0,9] (for all resolution and modes)", OFFSET(svt_param.enc_mode), AV_OPT_TYPE_INT, { .i64 = 9 }, 0, 12, VE },
> > +    {"profile", "Profile now support[1,2], Main Still Picture Profile not supported", OFFSET(svt_param.profile), AV_OPT_TYPE_INT, { .i64 = 2 }, 1, 2, VE },
> > +    {"rc", "RC mode 0: CQP 1: VBR", OFFSET(svt_param.rc_mode), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
> > +    {"q", "QP value for intra frames", OFFSET(svt_param.qp), AV_OPT_TYPE_INT, { .i64 = 32 }, 0, 51, VE },
> > +    {"scd", "Scene change detection", OFFSET(svt_param.scd), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
> > +    {"tune", "Tune mode: SQ/OQ[0,1]", OFFSET(svt_param.tune), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
> > +    {"bl_mode", "Random Access Prediction Structure Type", OFFSET(svt_param.base_layer_switch_mode), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
> > +    {NULL},
> > +};
>
> Need Document.

Will supply a other patch for docs/man-page part. Tks.
>
> > +
> > +static const AVClass class = {
> > +    .class_name = "libsvt_hevc",
> > +    .item_name  = av_default_item_name,
> > +    .option     = options,
> > +    .version    = LIBAVUTIL_VERSION_INT,
> > +};
> > +
> > +static const AVCodecDefault eb_enc_defaults[] = {
> > +    { "b",         "7M"    },
> > +    { "refs",      "0"     },
> > +    { "g",         "64"   },
> > +    { "flags",     "+cgop" },
> > +    { NULL },
> > +};
> > +
> > +AVCodec ff_hevc_svt_encoder = {
> > +    .name           = "libsvt_hevc",
> > +    .long_name      = NULL_IF_CONFIG_SMALL("SVT-HEVC(Scalable Video Technology for HEVC) encoder"),
> > +    .priv_data_size = sizeof(SvtContext),
> > +    .type           = AVMEDIA_TYPE_VIDEO,
> > +    .id             = AV_CODEC_ID_HEVC,
> > +    .init           = eb_enc_init,
> > +    .send_frame     = eb_send_frame,
> > +    .receive_packet = eb_receive_packet,
> > +    .close          = eb_enc_close,
> > +    .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
> > +    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P,
> > +                                                    AV_PIX_FMT_YUV420P10,
> > +                                                    AV_PIX_FMT_NONE },
> > +    .priv_class     = &class,
> > +    .defaults       = eb_enc_defaults,
> > +    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
> > +    .wrapper_name   = "libsvt_hevc",
> > +};
> > --
> > 1.7.1
> >
>
>


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