[FFmpeg-devel] [PATCH] lavc: Add libsvt-av1 encoder wrapper
Zhong Li
zhong.li at intel.com
Fri Jul 12 13:32:19 EEST 2019
From: Daryl Seah <daryl.seah at intel.com>
Signed-off-by: Daryl Seah
Signed-off-by: Jing SUN <jing.a.sun at intel.com>
Signed-off-by: ZhiZhen Tang <zhizhen.tang at intel.com>
Signed-off-by: Zhong Li <zhong.li at intel.com>
---
It is part of requirement from ticket #7914.
Since SVT-AV1 library is not stable, this patch is not ready to be merged but just call for comments of this wrapper and SVT library.
Fixes and improvements based on https://github.com/OpenVisualCloud/SVT-AV1/blob/master/ffmpeg_plugin with changes:
* Add 10bits support
* Add high/professional profiles setting
* Add 422 and 444 chroma support functions (though SVT library can't support well)
* Add more detailed error message report
* Expose threads setting since AV_CODEC_CAP_AUTO_THREADS declared
* Remove deinitialized funtion in eb_enc_init() since FF_CODEC_CAP_INIT_CLEANUP declared
* Add ff_side_data_set_encoder_stats() to report quality and piture type
* Add FFmpeg documentation.
* Rename to libsvtav1enc.c from libsvt_av1.c since SVT-AV1 can also support decoding.
* Other misc changes:
* Use function name with prefix "svt_" instead of "eb_"
* call ff_alloc_packet2() after eb_svt_get_packet() to avoid "header_ptr->n_filled_len" uninitialized
* Remove aud option since it isn't used
* Fix some error values, such as max look_ahead depth, vbr value, max preset value
* address some other comments from libsvt-hevc patch review
Changelog and version bump is missed to aviod rebase confict in the future when patch update
configure | 4 +
doc/encoders.texi | 139 ++++++++++++++
doc/general.texi | 8 +
libavcodec/Makefile | 1 +
libavcodec/allcodecs.c | 1 +
libavcodec/libsvtav1enc.c | 453 ++++++++++++++++++++++++++++++++++++++++++++++
6 files changed, 606 insertions(+)
create mode 100644 libavcodec/libsvtav1enc.c
diff --git a/configure b/configure
index 5a4f507..09f9ba3 100755
--- a/configure
+++ b/configure
@@ -264,6 +264,7 @@ 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-libsvtav1enc enable AV1 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]
@@ -1788,6 +1789,7 @@ EXTERNAL_LIBRARY_LIST="
libspeex
libsrt
libssh
+ libsvtav1enc
libtensorflow
libtesseract
libtheora
@@ -3183,6 +3185,7 @@ libshine_encoder_select="audio_frame_queue"
libspeex_decoder_deps="libspeex"
libspeex_encoder_deps="libspeex"
libspeex_encoder_select="audio_frame_queue"
+libsvt_av1_encoder_select="libsvtav1enc"
libtheora_encoder_deps="libtheora"
libtwolame_encoder_deps="libtwolame"
libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
@@ -6230,6 +6233,7 @@ 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 libsvtav1enc && require_pkg_config libsvtav1enc SvtAv1Enc EbSvtAv1Enc.h eb_init_handle
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/doc/encoders.texi b/doc/encoders.texi
index eefd124..dd7ad1c 100644
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -1574,6 +1574,145 @@ by commas (,). See kvazaar documentation for a list of options.
@end table
+ at section libsvt-av1
+
+Scalable Video Technology for AV1 (SVT-AV1) encoder wrapper.
+
+This encoder requires the presence of the headers and
+library during configuration. You need to explicitly configure the
+build with @code{--enable-libsvtav1enc}. The library is detected using
+ at command{pkg-config}.
+
+For more information about the library see
+ at url{https://github.com/OpenVisualCloud/SVT-AV1}.
+
+ at subsection Options
+
+The following FFmpeg global options affect the configurations of the
+libsvt-av1 encoder:
+
+ at table @option
+ at item b (@emph{bitrate})
+Set the bitrate (as a number of bits per second). Default is 7M.
+
+ at item g / @option{gop_size}
+Set the GOP size. Default is -2 (unspecified).
+
+ at item qmin (@emph{min-q})
+Default is 0
+
+ at item qmax (@emph{max-q})
+Default is 63
+
+Set minimum/maximum quantisation values. Valid range is from 0 to 63
+(Only used when bit rate control mode @option{rc} is set to 2(vbr) mode.
+It is required that qmax >= qmin).
+
+ at item threads
+Set the number of threads to use while encoding. if not set, threads will be
+managed by OS thread scheduler.
+
+ at item profile (@emph{profile})
+Set profile restrictions. Can assume one of the following possible values:
+
+ at table @samp
+ at item main
+main profile
+ at item high
+high profile
+ at item professional
+professional profile
+ at end table
+
+Default is 0 (main), but may be modified as pixel format to follow AV1 specification
+
+ at item level (@emph{level})
+
+ at option{level} sets the value of @emph{level}.
+Set level (level_idc). Default is 0 (to be determined by libsvt av1 library).
+
+ at end table
+
+The encoder also has its own specific options:
+
+ at table @option
+ at item hielevel
+Set hierarchical levels. Can assume one of the following possible values:
+
+ at table @samp
+ at item 3 level
+Minigop size is 2^3
+ at item 4 level
+Minigop size is 2^4
+ at end table
+
+Default is 4 level.
+
+ at item la_depth
+Set look-ahead depth, depending on @option{rc}: for @var{vbr}, it's recommended
+to unset it and use the default value (the intra period); for @var{cqp}, better
+specify the look-ahead depth.
+
+The range is @var{-1-120}. Default is -1 (unset and the default value to be used).
+
+ at item preset
+Set the quality vs density tradeoff point at which the encoding is to be performed.
+Higher perset value, higher density and lower quality.
+
+The range is @var{0-8}. Default is 8.
+
+ at item tier
+Set @emph{general_tier_flag}. This may affect the level chosen for the stream
+if it is not explicitly specified. Can assume one of the following possible values:
+
+ at table @samp
+ at item main
+main tier
+ at item high
+high tier
+ at end table
+
+Default is 0 (main).
+
+ at item rc
+Set bit rate control mode. Can assume one of the following possible values:
+
+ at table @samp
+ at item cqp
+Constant QP (CQP) mode
+ at item vbr
+Variable Bit Rate (VBR) mode
+ at end table
+
+Default is 2 (vbr).
+
+ at item qp
+Initial quantization parameter for the intra pictures used when
+ at option{rc} is cqp mode. The range is from @var{0-63}. Default is 50.
+
+ at item sc_detection
+Enables or disables the scene change detection algorithm. Default is 0 (disabled).
+
+ at item bl_mode
+Enables or disables Random Access Prediction. Default is 0 (disabled).
+ at end table
+
+ at subsection Examples
+
+ at itemize
+ at item
+Set VBR mode with 5Mbps with @command{ffmpeg}:
+ at example
+ffmpeg -i INPUT -codec:v libsvt-av1 -rc vbr -b:v 5M OUTPUT.mp4
+ at end example
+
+ at item
+Set CQP mode with qp equal to 30 with @command{ffmpeg}:
+ at example
+ffmpeg -i INPUT -codec:v libsvt-av1 -rc cqp -qp 30 OUTPUT.mp4
+ at end example
+ at end itemize
+
@section libopenh264
Cisco libopenh264 H.264/MPEG-4 AVC encoder wrapper.
diff --git a/doc/general.texi b/doc/general.texi
index 3c0c803..9f19950 100644
--- a/doc/general.texi
+++ b/doc/general.texi
@@ -25,6 +25,14 @@ Go to @url{http://aomedia.org/} and follow the instructions for
installing the library. Then pass @code{--enable-libaom} to configure to
enable it.
+ at section Scalable Video Technology for AV1 encoding
+
+FFmpeg can make use of the SVT-AV1 library for AV1 encoding.
+
+Go to @url{https://github.com/OpenVisualCloud/SVT-AV1/} and follow the instructions
+for installing the library. Then pass @code{--enable-libsvtav1enc} to configure to
+enable it.
+
@section AMD AMF/VCE
FFmpeg can use the AMD Advanced Media Framework library under Windows
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 3cd73fb..b5f6637 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -991,6 +991,7 @@ OBJS-$(CONFIG_LIBOPUS_ENCODER) += libopusenc.o libopus.o \
OBJS-$(CONFIG_LIBSHINE_ENCODER) += libshine.o
OBJS-$(CONFIG_LIBSPEEX_DECODER) += libspeexdec.o
OBJS-$(CONFIG_LIBSPEEX_ENCODER) += libspeexenc.o
+OBJS-$(CONFIG_LIBSVT_AV1_ENCODER) += libsvtav1enc.o
OBJS-$(CONFIG_LIBTHEORA_ENCODER) += libtheoraenc.o
OBJS-$(CONFIG_LIBTWOLAME_ENCODER) += libtwolame.o
OBJS-$(CONFIG_LIBVO_AMRWBENC_ENCODER) += libvo-amrwbenc.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index d2f9a39..75759c7 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -707,6 +707,7 @@ extern AVCodec ff_librsvg_decoder;
extern AVCodec ff_libshine_encoder;
extern AVCodec ff_libspeex_encoder;
extern AVCodec ff_libspeex_decoder;
+extern AVCodec ff_libsvt_av1_encoder;
extern AVCodec ff_libtheora_encoder;
extern AVCodec ff_libtwolame_encoder;
extern AVCodec ff_libvo_amrwbenc_encoder;
diff --git a/libavcodec/libsvtav1enc.c b/libavcodec/libsvtav1enc.c
new file mode 100644
index 0000000..bb96d07
--- /dev/null
+++ b/libavcodec/libsvtav1enc.c
@@ -0,0 +1,453 @@
+/*
+* Scalable Video Technology for AV1 encoder library plugin
+*
+* Copyright (c) 2019 Intel Corporation
+*
+* 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 this program; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+#include <stdint.h>
+#include "EbSvtAv1ErrorCodes.h"
+#include "EbSvtAv1Enc.h"
+
+#include "libavutil/common.h"
+#include "libavutil/frame.h"
+#include "libavutil/opt.h"
+#include "libavutil/avassert.h"
+#include "libavutil/pixdesc.h"
+
+#include "internal.h"
+#include "avcodec.h"
+
+typedef struct SvtContext {
+ AVClass *class;
+
+ EbSvtAv1EncConfiguration enc_params;
+ EbComponentType *svt_handle;
+ EbBufferHeaderType *in_buf;
+ int eos_flag;
+
+ // User options.
+ int hierarchical_level;
+ int la_depth;
+ int enc_mode;
+ int rc_mode;
+ int scd;
+ int qp;
+ int tier;
+ int level;
+ int profile;
+ int base_layer_switch_mode;
+} SvtContext;
+
+static const struct {
+ EbErrorType eb_err;
+ int av_err;
+ const char *desc;
+} svt_errors[] = {
+ { EB_ErrorNone, 0, "success" },
+ { EB_ErrorInsufficientResources, AVERROR(ENOMEM), "insufficient resources" },
+ { EB_ErrorUndefined, AVERROR(EINVAL), "undefined error" },
+ { EB_ErrorInvalidComponent, AVERROR(EINVAL), "invalid component" },
+ { EB_ErrorBadParameter, AVERROR(EINVAL), "bad parameter" },
+ { EB_ErrorDestroyThreadFailed, AVERROR_EXTERNAL, "failed to destory thread" },
+ { EB_ErrorSemaphoreUnresponsive, AVERROR_EXTERNAL, "semaphore unresponsive" },
+ { EB_ErrorDestroySemaphoreFailed, AVERROR_EXTERNAL, "semaphore unresponsive" },
+ { EB_ErrorCreateMutexFailed, AVERROR_EXTERNAL, "failed to creat mutex" },
+ { EB_ErrorMutexUnresponsive, AVERROR_EXTERNAL, "mutex unresponsive" },
+ { EB_ErrorDestroyMutexFailed, AVERROR_EXTERNAL, "failed to destory muxtex" },
+ { EB_NoErrorEmptyQueue, AVERROR(EAGAIN), "empty queue" },
+};
+
+static int svt_map_error(EbErrorType eb_err, const char **desc)
+{
+ int i;
+ av_assert0(desc);
+ for (i = 0; i < FF_ARRAY_ELEMS(svt_errors); i++) {
+ if (svt_errors[i].eb_err == eb_err) {
+ *desc = svt_errors[i].desc;
+ return svt_errors[i].av_err;
+ }
+ }
+ *desc = "unknown error";
+ return AVERROR_UNKNOWN;
+}
+
+static int svt_print_error(void *log_ctx, EbErrorType err,
+ const char *error_string)
+{
+ const char *desc;
+ int ret;
+ ret = svt_map_error(err, &desc);
+ av_log(log_ctx, AV_LOG_ERROR, "%s: %s (%d)\n", error_string, desc, err);
+ return ret;
+}
+
+static void free_buffer(SvtContext *svt_enc)
+{
+ if (svt_enc->in_buf) {
+ uint8_t *in_data = svt_enc->in_buf->p_buffer;
+ av_freep(&in_data);
+ av_freep(&svt_enc->in_buf);
+ }
+}
+
+static int alloc_buffer(SvtContext *svt_enc)
+{
+ EbSvtIOFormat *in_data;
+
+ // allocate buffer for in and out
+ svt_enc->in_buf = av_mallocz(sizeof(*svt_enc->in_buf));
+ if (!svt_enc->in_buf)
+ return AVERROR(ENOMEM);
+
+ in_data = av_mallocz(sizeof(*in_data));
+ if (!in_data)
+ return AVERROR(ENOMEM);
+ svt_enc->in_buf->p_buffer = (unsigned char *)in_data;
+ svt_enc->in_buf->size = sizeof(*svt_enc->in_buf);
+ svt_enc->in_buf->p_app_private = NULL;
+
+ return 0;
+}
+
+static int config_enc_params(EbSvtAv1EncConfiguration *param,
+ AVCodecContext *avctx)
+{
+ SvtContext *svt_enc = avctx->priv_data;
+ const AVPixFmtDescriptor *desc;
+
+ param->source_width = avctx->width;
+ param->source_height = avctx->height;
+
+ desc = av_pix_fmt_desc_get(avctx->pix_fmt);
+ param->encoder_bit_depth = desc->comp[0].depth;
+ av_log(avctx, AV_LOG_DEBUG , "Encoder %d bits depth input\n", param->encoder_bit_depth);
+
+ if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 1)
+ param->encoder_color_format = EB_YUV420;
+ else if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 0)
+ param->encoder_color_format = EB_YUV422;
+ else if (!desc->log2_chroma_w && !desc->log2_chroma_h)
+ param->encoder_color_format = EB_YUV444;
+ else {
+ av_log(avctx, AV_LOG_ERROR , "Unsupported pixel format\n");
+ return AVERROR(EINVAL);
+ }
+ av_log(avctx, AV_LOG_DEBUG , "Encoder color format is %d \n", param->encoder_color_format);
+
+ if (param->encoder_color_format == EB_YUV422 || param->encoder_bit_depth > 10) {
+ av_log(avctx, AV_LOG_WARNING, "Force to be professional profile \n");
+ param->profile = PROFESSIONAL_PROFILE;
+ } else if (param->encoder_color_format == EB_YUV444) {
+ av_log(avctx, AV_LOG_WARNING, "Force to be high profile \n");
+ param->profile = HIGH_PROFILE;
+ }
+
+ // Update param from options
+ param->hierarchical_levels = svt_enc->hierarchical_level;
+ param->enc_mode = svt_enc->enc_mode;
+ param->tier = svt_enc->tier;
+ param->level = svt_enc->level;
+ param->rate_control_mode = svt_enc->rc_mode;
+ param->scene_change_detection = svt_enc->scd;
+ param->base_layer_switch_mode = svt_enc->base_layer_switch_mode;
+ param->qp = svt_enc->qp;
+
+ param->target_bit_rate = avctx->bit_rate;
+ if (avctx->gop_size > 0)
+ param->intra_period_length = avctx->gop_size - 1;
+
+ if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
+ param->frame_rate_numerator = avctx->framerate.num;
+ param->frame_rate_denominator = avctx->framerate.den * avctx->ticks_per_frame;
+ } else {
+ param->frame_rate_numerator = avctx->time_base.den;
+ param->frame_rate_denominator = avctx->time_base.num * avctx->ticks_per_frame;
+ }
+
+ if (param->rate_control_mode) {
+ param->max_qp_allowed = avctx->qmax;
+ param->min_qp_allowed = avctx->qmin;
+ }
+
+ param->intra_refresh_type = !!(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP) + 1;
+
+ if (svt_enc->la_depth != -1)
+ param->look_ahead_distance = svt_enc->la_depth;
+
+ param->logical_processors = avctx->thread_count;
+
+ return 0;
+}
+
+static void read_in_data(const AVFrame *frame,
+ EbBufferHeaderType *header_ptr)
+{
+ EbSvtIOFormat *in_data = (EbSvtIOFormat *)header_ptr->p_buffer;
+ const AVPixFmtDescriptor *desc;
+ int i, bytes_shift, plane_h;
+
+ desc = av_pix_fmt_desc_get(frame->format);
+ bytes_shift = desc->comp[0].depth > 8 ? 1 : 0;
+
+ in_data->luma = frame->data[0];
+ in_data->cb = frame->data[1];
+ in_data->cr = frame->data[2];
+
+ in_data->y_stride = AV_CEIL_RSHIFT(frame->linesize[0], bytes_shift);
+ in_data->cb_stride = AV_CEIL_RSHIFT(frame->linesize[1], bytes_shift);
+ in_data->cr_stride = AV_CEIL_RSHIFT(frame->linesize[2], bytes_shift);
+
+ for (i = 0; i < desc->nb_components; i++) {
+ plane_h = frame->height;
+ if (i > 0)
+ plane_h = AV_CEIL_RSHIFT(plane_h, desc->log2_chroma_h);
+ header_ptr->n_filled_len += frame->linesize[i] * plane_h;
+ }
+}
+
+static av_cold int svt_enc_init(AVCodecContext *avctx)
+{
+ SvtContext *svt_enc = avctx->priv_data;
+ EbErrorType svt_ret;
+
+ svt_enc->eos_flag = 0;
+
+ svt_ret = eb_init_handle(&svt_enc->svt_handle, svt_enc, &svt_enc->enc_params);
+ if (svt_ret != EB_ErrorNone) {
+ return svt_print_error(avctx, svt_ret, "Error init encoder handle");
+ }
+
+ svt_ret = config_enc_params(&svt_enc->enc_params, avctx);
+ if (svt_ret < 0) {
+ return svt_ret;
+ }
+
+ svt_ret = eb_svt_enc_set_parameter(svt_enc->svt_handle, &svt_enc->enc_params);
+ if (svt_ret != EB_ErrorNone) {
+ return svt_print_error(avctx, svt_ret, "Error setting encoder parameters");
+ }
+
+ svt_ret = eb_init_encoder(svt_enc->svt_handle);
+ if (svt_ret != EB_ErrorNone) {
+ return svt_print_error(avctx, svt_ret, "Error init encoder");
+ }
+
+ if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
+ EbBufferHeaderType *header_ptr = NULL;
+
+ svt_ret = eb_svt_enc_stream_header(svt_enc->svt_handle, &header_ptr);
+ if (svt_ret != EB_ErrorNone) {
+ return svt_print_error(avctx, svt_ret, "Error when build stream header");
+ }
+
+ avctx->extradata_size = header_ptr->n_filled_len;
+ avctx->extradata = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (!avctx->extradata) {
+ return AVERROR(ENOMEM);
+ }
+
+ memcpy(avctx->extradata, header_ptr->p_buffer, avctx->extradata_size);
+
+ svt_ret = eb_svt_release_enc_stream_header(header_ptr);
+ if (svt_ret != EB_ErrorNone) {
+ return svt_print_error(avctx, svt_ret, "Error when destroy stream header");
+ }
+ }
+
+ svt_ret = alloc_buffer(svt_enc);
+ if (svt_ret < 0)
+ return svt_ret;
+
+ return 0;
+}
+
+static int svt_send_frame(AVCodecContext *avctx, const AVFrame *frame)
+{
+ SvtContext *svt_enc = avctx->priv_data;
+ EbBufferHeaderType *header_ptr = svt_enc->in_buf;
+
+ if (!frame) {
+ EbBufferHeaderType header_ptrLast;
+ header_ptrLast.n_alloc_len = 0;
+ header_ptrLast.n_filled_len = 0;
+ header_ptrLast.n_tick_count = 0;
+ header_ptrLast.p_app_private = NULL;
+ header_ptrLast.p_buffer = NULL;
+ header_ptrLast.flags = EB_BUFFERFLAG_EOS;
+
+ eb_svt_enc_send_picture(svt_enc->svt_handle, &header_ptrLast);
+ svt_enc->eos_flag = 1;
+ av_log(avctx, AV_LOG_DEBUG, "Finish sending frames!!!\n");
+ return 0;
+ }
+
+ read_in_data(frame, header_ptr);
+
+ header_ptr->flags = 0;
+ header_ptr->p_app_private = NULL;
+ header_ptr->pts = frame->pts;
+
+ eb_svt_enc_send_picture(svt_enc->svt_handle, header_ptr);
+
+ return 0;
+}
+
+static int svt_receive_packet(AVCodecContext *avctx, AVPacket *pkt)
+{
+ SvtContext *svt_enc = avctx->priv_data;
+ EbBufferHeaderType *header_ptr;
+ EbErrorType svt_ret;
+ int ret;
+
+ svt_ret = eb_svt_get_packet(svt_enc->svt_handle, &header_ptr, svt_enc->eos_flag);
+ if (svt_ret == EB_NoErrorEmptyQueue)
+ return AVERROR(EAGAIN);
+
+ if ((ret = ff_alloc_packet2(avctx, pkt, header_ptr->n_filled_len, 0)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to allocate output packet.\n");
+ return ret;
+ }
+
+ memcpy(pkt->data, header_ptr->p_buffer, header_ptr->n_filled_len);
+ pkt->size = header_ptr->n_filled_len;
+ pkt->pts = header_ptr->pts;
+ pkt->dts = header_ptr->dts;
+ if (header_ptr->pic_type == EB_AV1_KEY_PICTURE)
+ pkt->flags |= AV_PKT_FLAG_KEY;
+
+ ff_side_data_set_encoder_stats(pkt, header_ptr->qp * FF_QP2LAMBDA, NULL, 0, header_ptr->pic_type);
+
+ ret = (header_ptr->flags & EB_BUFFERFLAG_EOS) ? AVERROR_EOF : 0;
+
+ eb_svt_release_out_buffer(&header_ptr);
+
+ return ret;
+}
+
+static av_cold int svt_enc_close(AVCodecContext *avctx)
+{
+ SvtContext *svt_enc = avctx->priv_data;
+
+ if (svt_enc) {
+ if (svt_enc->svt_handle) {
+ eb_deinit_encoder(svt_enc->svt_handle);
+ eb_deinit_handle(svt_enc->svt_handle);
+ }
+
+ free_buffer(svt_enc);
+ svt_enc = NULL;
+ }
+
+ return 0;
+}
+
+#define OFFSET(x) offsetof(SvtContext, x)
+#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+ { "hielevel", "Hierarchical prediction levels setting", OFFSET(hierarchical_level),
+ AV_OPT_TYPE_INT, { .i64 = 4 }, 3, 4, VE , "hielevel"},
+ { "3level", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3 }, INT_MIN, INT_MAX, VE, "hielevel" },
+ { "4level", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4 }, INT_MIN, INT_MAX, VE, "hielevel" },
+
+ { "la_depth", "Look ahead distance [0, 120]", OFFSET(la_depth),
+ AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 120, VE },
+
+ { "preset", "Encoding preset [0, 8]",
+ OFFSET(enc_mode), AV_OPT_TYPE_INT, { .i64 = MAX_ENC_PRESET }, 0, MAX_ENC_PRESET, VE },
+
+ { "profile", "Set profile restrictions", OFFSET(profile), AV_OPT_TYPE_INT, { .i64 = MAIN_PROFILE}, MAIN_PROFILE, PROFESSIONAL_PROFILE, VE, "profile" },
+ { "main" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MAIN_PROFILE}, INT_MIN, INT_MAX, VE, "profile" },
+ { "high" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = HIGH_PROFILE}, INT_MIN, INT_MAX, VE, "profile" },
+ { "professional", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PROFESSIONAL_PROFILE }, INT_MIN, INT_MAX, VE, "profile" },
+
+ { "tier", "Set tier (general_tier_flag)", OFFSET(tier),
+ AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE, "tier" },
+ { "main", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, VE, "tier" },
+ { "high", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, VE, "tier" },
+
+ { "level", "Set level (level_idc)", OFFSET(level),
+ AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 0xff, VE, "level" },
+
+#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
+ { .i64 = value }, 0, 0, VE, "level"
+ { LEVEL("1", 10) },
+ { LEVEL("2", 20) },
+ { LEVEL("2.1", 21) },
+ { LEVEL("3", 30) },
+ { LEVEL("3.1", 31) },
+ { LEVEL("4", 40) },
+ { LEVEL("4.1", 41) },
+ { LEVEL("5", 50) },
+ { LEVEL("5.1", 51) },
+ { LEVEL("5.2", 52) },
+ { LEVEL("6", 60) },
+ { LEVEL("6.1", 61) },
+ { LEVEL("6.2", 62) },
+#undef LEVEL
+
+ { "rc", "Bit rate control mode", OFFSET(rc_mode), AV_OPT_TYPE_INT, { .i64 = 2 }, 0, 3, VE , "rc"},
+ { "cqp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "rc" },
+ { "vbr", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, INT_MIN, INT_MAX, VE, "rc" },
+
+ { "qp", "QP value for intra frames", OFFSET(qp),
+ AV_OPT_TYPE_INT, { .i64 = 50 }, 0, 63, VE },
+
+ { "sc_detection", "Scene change detection", OFFSET(scd),
+ AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
+
+ { "bl_mode", "Random Access Prediction Structure type setting", OFFSET(base_layer_switch_mode),
+ AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
+
+ {NULL},
+};
+
+static const AVClass class = {
+ .class_name = "libsvt-av1 encoder",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+static const AVCodecDefault eb_enc_defaults[] = {
+ { "b", "7M" },
+ { "g", "-2" },
+ { "qmin", "0" },
+ { "qmax", "63" },
+ { NULL },
+};
+
+AVCodec ff_libsvt_av1_encoder = {
+ .name = "libsvt-av1",
+ .long_name = NULL_IF_CONFIG_SMALL("SVT-AV1(Scalable Video Technology for AV1)"),
+ .priv_data_size = sizeof(SvtContext),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_AV1,
+ .init = svt_enc_init,
+ .send_frame = svt_send_frame,
+ .receive_packet = svt_receive_packet,
+ .close = svt_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-av1",
+};
--
2.7.4
More information about the ffmpeg-devel
mailing list