mirror of https://git.ffmpeg.org/ffmpeg.git
lavc, doc, configure: add libxavs2 video encoder wrapper
Signed-off-by: hwren <hwrenx@126.com>
This commit is contained in:
hwren
Mark Thompson
parent
092cbbfa74
commit
85a921f461
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@ -26,6 +26,7 @@ version <next>:
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- cue and acue filters
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- support for AV1 in MP4
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- transpose_npp filter
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- AVS2 video encoder via libxavs2
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version 4.0:
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@ -281,6 +281,7 @@ External library support:
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--enable-libx264 enable H.264 encoding via x264 [no]
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--enable-libx265 enable HEVC encoding via x265 [no]
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--enable-libxavs enable AVS encoding via xavs [no]
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--enable-libxavs2 enable AVS2 encoding via xavs2 [no]
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--enable-libxcb enable X11 grabbing using XCB [autodetect]
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--enable-libxcb-shm enable X11 grabbing shm communication [autodetect]
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--enable-libxcb-xfixes enable X11 grabbing mouse rendering [autodetect]
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@ -1667,6 +1668,7 @@ EXTERNAL_LIBRARY_GPL_LIST="
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libx264
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libx265
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libxavs
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libxavs2
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libxvid
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"
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@ -3135,6 +3137,7 @@ libx264rgb_encoder_deps="libx264 x264_csp_bgr"
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libx264rgb_encoder_select="libx264_encoder"
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libx265_encoder_deps="libx265"
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libxavs_encoder_deps="libxavs"
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libxavs2_encoder_deps="libxavs2"
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libxvid_encoder_deps="libxvid"
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libzvbi_teletext_decoder_deps="libzvbi"
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vapoursynth_demuxer_deps="vapoursynth"
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@ -6171,6 +6174,7 @@ enabled libx264 && { check_pkg_config libx264 x264 "stdint.h x264.h" x
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enabled libx265 && require_pkg_config libx265 x265 x265.h x265_api_get &&
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require_cpp_condition libx265 x265.h "X265_BUILD >= 68"
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enabled libxavs && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
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enabled libxavs2 && require_pkg_config libxavs2 "xavs2 >= 1.2.77" "stdint.h xavs2.h" xavs2_api_get
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enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
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enabled libzimg && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
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enabled libzmq && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new
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@ -2726,6 +2726,55 @@ Reduces detail but attempts to preserve color at extremely low bitrates.
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@end table
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@section libxavs2
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xavs2 AVS2-P2/IEEE1857.4 encoder wrapper.
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This encoder requires the presence of the libxavs2 headers and library
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during configuration. You need to explicitly configure the build with
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@option{--enable-libxavs2}.
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@subsection Options
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@table @option
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@item lcu_row_threads
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Set the number of parallel threads for rows from 1 to 8 (default 5).
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@item initial_qp
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Set the xavs2 quantization parameter from 1 to 63 (default 34). This is
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used to set the initial qp for the first frame.
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@item qp
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Set the xavs2 quantization parameter from 1 to 63 (default 34). This is
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used to set the qp value under constant-QP mode.
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@item max_qp
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Set the max qp for rate control from 1 to 63 (default 55).
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@item min_qp
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Set the min qp for rate control from 1 to 63 (default 20).
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@item speed_level
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Set the Speed level from 0 to 9 (default 0). Higher is better but slower.
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@item log_level
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Set the log level from -1 to 3 (default 0). -1: none, 0: error,
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1: warning, 2: info, 3: debug.
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@item hierarchical_ref
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Set the hierarchical reference or not (default true).
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@item xavs2-params
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Set xavs2 options using a list of @var{key}=@var{value} couples separated
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by ":".
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For example to specify libxavs2 encoding options with @option{-xavs2-params}:
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@example
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ffmpeg -i input -c:v libxavs2 -xavs2-params preset_level=5 output.avs2
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@end example
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@end table
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@c man end VIDEO ENCODERS
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@chapter Subtitles Encoders
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@ -17,6 +17,20 @@ for more formats. None of them are used by default, their use has to be
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explicitly requested by passing the appropriate flags to
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@command{./configure}.
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@section libxavs2
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FFmpeg can make use of the xavs2 library for AVS2-P2/IEEE1857.4 video encoding.
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Go to @url{https://github.com/pkuvcl/xavs2} and follow the instructions for
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installing the library. Then pass @code{--enable-libxavs2} to configure to
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enable it.
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@float NOTE
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libxavs2 is under the GNU Public License Version 2 or later
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(see @url{http://www.gnu.org/licenses/old-licenses/gpl-2.0.html} for
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details), you must upgrade FFmpeg's license to GPL in order to use it.
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@end float
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@section libdavs2
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FFmpeg can make use of the davs2 library for AVS2-P2/IEEE1857.4 video decoding.
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@ -993,6 +993,7 @@ OBJS-$(CONFIG_LIBX262_ENCODER) += libx264.o
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OBJS-$(CONFIG_LIBX264_ENCODER) += libx264.o
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OBJS-$(CONFIG_LIBX265_ENCODER) += libx265.o
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OBJS-$(CONFIG_LIBXAVS_ENCODER) += libxavs.o
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OBJS-$(CONFIG_LIBXAVS2_ENCODER) += libxavs2.o
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OBJS-$(CONFIG_LIBXVID_ENCODER) += libxvid.o
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OBJS-$(CONFIG_LIBZVBI_TELETEXT_DECODER) += libzvbi-teletextdec.o ass.o
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@ -712,6 +712,7 @@ extern AVCodec ff_libx264_encoder;
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extern AVCodec ff_libx264rgb_encoder;
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extern AVCodec ff_libx265_encoder;
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extern AVCodec ff_libxavs_encoder;
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extern AVCodec ff_libxavs2_encoder;
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extern AVCodec ff_libxvid_encoder;
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extern AVCodec ff_libzvbi_teletext_decoder;
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@ -0,0 +1,297 @@
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/*
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* AVS2 encoding using the xavs2 library
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*
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* Copyright (C) 2018 Yiqun Xu, <yiqun.xu@vipl.ict.ac.cn>
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* Falei Luo, <falei.luo@gmail.com>
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* Huiwen Ren, <hwrenx@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "xavs2.h"
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#include "mpeg12.h"
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#include "libavutil/avstring.h"
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#define xavs2_opt_set2(name, format, ...) do{ \
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char opt_str[16] = {0}; \
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int err; \
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av_strlcatf(opt_str, sizeof(opt_str), format, __VA_ARGS__); \
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err = cae->api->opt_set2(cae->param, name, opt_str); \
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if (err) {\
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av_log(avctx, AV_LOG_WARNING, "Invalid value for %s: %s\n", name, opt_str);\
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}\
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} while(0);
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typedef struct XAVS2EContext {
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AVClass *class;
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int lcu_row_threads;
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int initial_qp;
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int qp;
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int max_qp;
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int min_qp;
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int preset_level;
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int log_level;
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int hierarchical_reference;
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void *encoder;
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char *xavs2_opts;
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xavs2_outpacket_t packet;
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xavs2_param_t *param;
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const xavs2_api_t *api;
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} XAVS2EContext;
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static av_cold int xavs2_init(AVCodecContext *avctx)
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{
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XAVS2EContext *cae= avctx->priv_data;
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int bit_depth, code;
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bit_depth = avctx->pix_fmt == AV_PIX_FMT_YUV420P ? 8 : 10;
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/* get API handler */
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cae->api = xavs2_api_get(bit_depth);
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if (!cae->api) {
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av_log(avctx, AV_LOG_ERROR, "api get failed\n");
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return AVERROR_EXTERNAL;
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}
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cae->param = cae->api->opt_alloc();
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if (!cae->param) {
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av_log(avctx, AV_LOG_ERROR, "param alloc failed\n");
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return AVERROR(ENOMEM);
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}
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xavs2_opt_set2("rec", "%d", 0);
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xavs2_opt_set2("width", "%d", avctx->width);
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xavs2_opt_set2("height", "%d", avctx->height);
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xavs2_opt_set2("bframes", "%d", avctx->max_b_frames);
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xavs2_opt_set2("bitdepth", "%d", bit_depth);
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xavs2_opt_set2("log", "%d", cae->log_level);
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xavs2_opt_set2("preset", "%d", cae->preset_level);
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/* not the same parameter as the IntraPeriod in xavs2 log */
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xavs2_opt_set2("intraperiod", "%d", avctx->gop_size);
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xavs2_opt_set2("thread_frames", "%d", avctx->thread_count);
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xavs2_opt_set2("thread_rows", "%d", cae->lcu_row_threads);
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xavs2_opt_set2("hierarchical_ref", "%d", cae->hierarchical_reference);
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xavs2_opt_set2("OpenGOP", "%d", 1);
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if (cae->xavs2_opts) {
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AVDictionary *dict = NULL;
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AVDictionaryEntry *en = NULL;
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if (!av_dict_parse_string(&dict, cae->xavs2_opts, "=", ":", 0)) {
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while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
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xavs2_opt_set2(en->key, "%s", en->value);
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}
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av_dict_free(&dict);
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}
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}
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/* Rate control */
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if (avctx->bit_rate > 0) {
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xavs2_opt_set2("RateControl", "%d", 1);
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xavs2_opt_set2("TargetBitRate", "%"PRId64"", avctx->bit_rate);
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xavs2_opt_set2("initial_qp", "%d", cae->initial_qp);
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xavs2_opt_set2("max_qp", "%d", cae->max_qp);
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xavs2_opt_set2("min_qp", "%d", cae->min_qp);
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} else {
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xavs2_opt_set2("initial_qp", "%d", cae->qp);
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}
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ff_mpeg12_find_best_frame_rate(avctx->framerate, &code, NULL, NULL, 0);
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xavs2_opt_set2("FrameRate", "%d", code);
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cae->encoder = cae->api->encoder_create(cae->param);
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if (!cae->encoder) {
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av_log(avctx,AV_LOG_ERROR, "Can not create encoder. Null pointer returned\n");
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return AVERROR(EINVAL);
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}
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return 0;
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}
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static void xavs2_copy_frame_with_shift(xavs2_picture_t *pic, const AVFrame *frame, const int shift_in)
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{
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int j, k;
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for (k = 0; k < 3; k++) {
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int i_stride = pic->img.i_stride[k];
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for (j = 0; j < pic->img.i_lines[k]; j++) {
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uint16_t *p_plane = (uint16_t *)&pic->img.img_planes[k][j * i_stride];
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int i;
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uint8_t *p_buffer = frame->data[k] + frame->linesize[k] * j;
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memset(p_plane, 0, i_stride);
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for (i = 0; i < pic->img.i_width[k]; i++) {
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p_plane[i] = p_buffer[i] << shift_in;
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}
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}
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}
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}
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static void xavs2_copy_frame(xavs2_picture_t *pic, const AVFrame *frame)
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{
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int j, k;
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for (k = 0; k < 3; k++) {
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for (j = 0; j < pic->img.i_lines[k]; j++) {
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memcpy( pic->img.img_planes[k] + pic->img.i_stride[k] * j,
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frame->data[k]+frame->linesize[k] * j,
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pic->img.i_width[k] * pic->img.in_sample_size);
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}
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}
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}
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static int xavs2_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
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const AVFrame *frame, int *got_packet)
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{
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XAVS2EContext *cae = avctx->priv_data;
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xavs2_picture_t pic;
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int ret;
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/* create the XAVS2 video encoder */
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/* read frame data and send to the XAVS2 video encoder */
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if (cae->api->encoder_get_buffer(cae->encoder, &pic) < 0) {
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av_log(avctx,AV_LOG_ERROR, "failed to get frame buffer\n");
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return AVERROR_EXTERNAL;
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}
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if (frame) {
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switch (frame->format) {
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case AV_PIX_FMT_YUV420P:
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if (pic.img.in_sample_size == pic.img.enc_sample_size) {
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xavs2_copy_frame(&pic, frame);
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} else {
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const int shift_in = atoi(cae->api->opt_get(cae->param, "SampleShift"));
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xavs2_copy_frame_with_shift(&pic, frame, shift_in);
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}
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break;
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case AV_PIX_FMT_YUV420P10:
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if (pic.img.in_sample_size == pic.img.enc_sample_size) {
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xavs2_copy_frame(&pic, frame);
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break;
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}
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default:
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av_log(avctx, AV_LOG_ERROR, "Unsupported pixel format\n");
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return AVERROR(EINVAL);
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break;
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}
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pic.i_state = 0;
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pic.i_pts = frame->pts;
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pic.i_type = XAVS2_TYPE_AUTO;
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ret = cae->api->encoder_encode(cae->encoder, &pic, &cae->packet);
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if (ret) {
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av_log(avctx, AV_LOG_ERROR, "encode failed\n");
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return AVERROR_EXTERNAL;
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}
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} else {
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cae->api->encoder_encode(cae->encoder, NULL, &cae->packet);
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}
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if ((cae->packet.len) && (cae->packet.state != XAVS2_STATE_FLUSH_END)){
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if (av_new_packet(pkt, cae->packet.len) < 0){
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av_log(avctx, AV_LOG_ERROR, "packet alloc failed\n");
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cae->api->encoder_packet_unref(cae->encoder, &cae->packet);
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return AVERROR(ENOMEM);
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}
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pkt->pts = cae->packet.pts;
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pkt->dts = cae->packet.dts;
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memcpy(pkt->data, cae->packet.stream, cae->packet.len);
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pkt->size = cae->packet.len;
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cae->api->encoder_packet_unref(cae->encoder, &cae->packet);
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*got_packet = 1;
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} else {
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*got_packet = 0;
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}
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return 0;
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}
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static av_cold int xavs2_close(AVCodecContext *avctx)
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{
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XAVS2EContext *cae = avctx->priv_data;
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/* destroy the encoder */
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if (cae->api) {
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cae->api->encoder_destroy(cae->encoder);
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if (cae->param) {
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cae->api->opt_destroy(cae->param);
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}
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}
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return 0;
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}
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#define OFFSET(x) offsetof(XAVS2EContext, x)
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#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
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static const AVOption options[] = {
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{ "lcu_row_threads" , "number of parallel threads for rows" , OFFSET(lcu_row_threads) , AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, VE },
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{ "initial_qp" , "Quantization initial parameter" , OFFSET(initial_qp) , AV_OPT_TYPE_INT, {.i64 = 34 }, 1, 63, VE },
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{ "qp" , "Quantization parameter" , OFFSET(qp) , AV_OPT_TYPE_INT, {.i64 = 34 }, 1, 63, VE },
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{ "max_qp" , "max qp for rate control" , OFFSET(max_qp) , AV_OPT_TYPE_INT, {.i64 = 55 }, 0, 63, VE },
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{ "min_qp" , "min qp for rate control" , OFFSET(min_qp) , AV_OPT_TYPE_INT, {.i64 = 20 }, 0, 63, VE },
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{ "speed_level" , "Speed level, higher is better but slower", OFFSET(preset_level) , AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 9, VE },
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{ "log_level" , "log level: -1: none, 0: error, 1: warning, 2: info, 3: debug", OFFSET(log_level) , AV_OPT_TYPE_INT, {.i64 = 0 }, -1, 3, VE },
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{ "hierarchical_ref", "hierarchical reference" , OFFSET(hierarchical_reference) , AV_OPT_TYPE_BOOL, {.i64 = 1 }, 0, 1, VE },
|
||||
{ "xavs2-params" , "set the xavs2 configuration using a :-separated list of key=value parameters", OFFSET(xavs2_opts), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
|
||||
{ NULL },
|
||||
};
|
||||
|
||||
static const AVClass libxavs2 = {
|
||||
.class_name = "XAVS2EContext",
|
||||
.item_name = av_default_item_name,
|
||||
.option = options,
|
||||
.version = LIBAVUTIL_VERSION_INT,
|
||||
};
|
||||
|
||||
static const AVCodecDefault xavs2_defaults[] = {
|
||||
{ "b", "0" },
|
||||
{ "g", "48" },
|
||||
{ "bf", "7" },
|
||||
{ NULL },
|
||||
};
|
||||
|
||||
AVCodec ff_libxavs2_encoder = {
|
||||
.name = "libxavs2",
|
||||
.long_name = NULL_IF_CONFIG_SMALL("libxavs2 AVS2-P2/IEEE1857.4"),
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.id = AV_CODEC_ID_AVS2,
|
||||
.priv_data_size = sizeof(XAVS2EContext),
|
||||
.init = xavs2_init,
|
||||
.encode2 = xavs2_encode_frame,
|
||||
.close = xavs2_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 = &libxavs2,
|
||||
.defaults = xavs2_defaults,
|
||||
.wrapper_name = "libxavs2",
|
||||
} ;
|
||||
|
|
@ -28,7 +28,7 @@
|
|||
#include "libavutil/version.h"
|
||||
|
||||
#define LIBAVCODEC_VERSION_MAJOR 58
|
||||
#define LIBAVCODEC_VERSION_MINOR 29
|
||||
#define LIBAVCODEC_VERSION_MINOR 30
|
||||
#define LIBAVCODEC_VERSION_MICRO 100
|
||||
|
||||
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
|
||||
|
|
|
|||
Loading…
Reference in New Issue