mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
kvazaar: Add libkvazaar HEVC encoder
Signed-off-by: Arttu Ylä-Outinen <arttu.yla-outinen@tut.fi> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
parent
18f9308e6a
commit
233d2fa044
@ -45,6 +45,7 @@ version <next>:
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- DXV decoding
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- Screenpresso SPV1 decoding
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- zero-copy Intel QSV transcoding in avconv
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- libkvazaar HEVC encoder
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version 11:
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4
configure
vendored
4
configure
vendored
@ -191,6 +191,7 @@ External library support:
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--enable-libfreetype enable libfreetype [no]
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--enable-libgsm enable GSM de/encoding via libgsm [no]
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--enable-libilbc enable iLBC de/encoding via libilbc [no]
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--enable-libkvazaar enable HEVC encoding via libkvazaar [no]
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--enable-libmfx enable HW acceleration through libmfx
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--enable-libmp3lame enable MP3 encoding via libmp3lame [no]
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--enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
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@ -1186,6 +1187,7 @@ EXTERNAL_LIBRARY_LIST="
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libfreetype
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libgsm
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libilbc
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libkvazaar
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libmfx
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libmp3lame
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libopencore_amrnb
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@ -2133,6 +2135,7 @@ libgsm_ms_decoder_deps="libgsm"
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libgsm_ms_encoder_deps="libgsm"
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libilbc_decoder_deps="libilbc"
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libilbc_encoder_deps="libilbc"
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libkvazaar_encoder_deps="libkvazaar"
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libmp3lame_encoder_deps="libmp3lame"
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libmp3lame_encoder_select="audio_frame_queue"
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libopencore_amrnb_decoder_deps="libopencore_amrnb"
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@ -4420,6 +4423,7 @@ enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
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check_lib "${gsm_hdr}" gsm_create -lgsm && break;
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done || die "ERROR: libgsm not found"; }
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enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
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enabled libkvazaar && require_pkg_config "kvazaar >= 0.7.1" kvazaar.h kvz_api_get
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enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
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enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
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enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
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@ -813,4 +813,25 @@ Setting a higher @option{bits_per_mb} limit will improve the speed.
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For the fastest encoding speed set the @option{qscale} parameter (4 is the
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recommended value) and do not set a size constraint.
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@section libkvazaar
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Kvazaar H.265/HEVC encoder.
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Requires the presence of the libkvazaar headers and library during
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configuration. You need to explicitly configure the build with
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@option{--enable-libkvazaar}.
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@subsection Options
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@table @option
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@item b
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Set target video bitrate in bit/s and enable rate control.
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@item kvazaar-params
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Set kvazaar parameters as a list of @var{name}=@var{value} pairs separated
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by commas (,). See kvazaar documentation for a list of options.
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@end table
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@c man end VIDEO ENCODERS
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@ -131,6 +131,14 @@ x265 is under the GNU Public License Version 2 or later
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details), you must upgrade Libav's license to GPL in order to use it.
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@end float
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@section kvazaar
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Libav can make use of the kvazaar library for HEVC encoding.
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Go to @url{https://github.com/ultravideo/kvazaar} and follow the
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instructions for installing the library. Then pass
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@code{--enable-libkvazaar} to configure to enable it.
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@section libilbc
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iLBC is a narrowband speech codec that has been made freely available
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@ -630,7 +638,7 @@ following image formats are supported:
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@item H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 @tab E @tab X
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@tab encoding supported through external library libx264 and OpenH264
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@item HEVC @tab X @tab X
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@tab encoding supported through the external library libx265
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@tab encoding supported through external library libx265 and libkvazaar
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@item HNM version 4 @tab @tab X
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@item HuffYUV @tab X @tab X
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@item HuffYUV FFmpeg variant @tab X @tab X
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@ -655,6 +655,7 @@ OBJS-$(CONFIG_LIBGSM_MS_DECODER) += libgsmdec.o
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OBJS-$(CONFIG_LIBGSM_MS_ENCODER) += libgsmenc.o
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OBJS-$(CONFIG_LIBILBC_DECODER) += libilbc.o
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OBJS-$(CONFIG_LIBILBC_ENCODER) += libilbc.o
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OBJS-$(CONFIG_LIBKVAZAAR_ENCODER) += libkvazaar.o
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OBJS-$(CONFIG_LIBMP3LAME_ENCODER) += libmp3lame.o mpegaudiodecheader.o
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OBJS-$(CONFIG_LIBOPENCORE_AMRNB_DECODER) += libopencore-amr.o
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OBJS-$(CONFIG_LIBOPENCORE_AMRNB_ENCODER) += libopencore-amr.o
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@ -491,6 +491,7 @@ void avcodec_register_all(void)
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REGISTER_ENCODER(LIBOPENH264, libopenh264);
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REGISTER_ENCODER(H264_NVENC, h264_nvenc);
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REGISTER_ENCODER(H264_QSV, h264_qsv);
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REGISTER_ENCODER(LIBKVAZAAR, libkvazaar);
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REGISTER_ENCODER(HEVC_NVENC, hevc_nvenc);
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REGISTER_ENCODER(HEVC_QSV, hevc_qsv);
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REGISTER_ENCODER(MPEG2_QSV, mpeg2_qsv);
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300
libavcodec/libkvazaar.c
Normal file
300
libavcodec/libkvazaar.c
Normal file
@ -0,0 +1,300 @@
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/*
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* libkvazaar encoder
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*
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* Copyright (c) 2015 Tampere University of Technology
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*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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 <kvazaar.h>
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#include <string.h>
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#include "libavutil/dict.h"
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#include "libavutil/error.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/internal.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/opt.h"
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#include "avcodec.h"
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#include "internal.h"
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typedef struct LibkvazaarContext {
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const AVClass *class;
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const kvz_api *api;
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kvz_encoder *encoder;
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kvz_config *config;
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char *kvz_params;
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} LibkvazaarContext;
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static av_cold int libkvazaar_init(AVCodecContext *avctx)
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{
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LibkvazaarContext *const ctx = avctx->priv_data;
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const kvz_api *const api = ctx->api = kvz_api_get(8);
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kvz_config *cfg = NULL;
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kvz_encoder *enc = NULL;
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if (avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
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av_log(avctx, AV_LOG_ERROR,
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"Set -strict experimental to use this encoder.\n");
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return AVERROR_EXPERIMENTAL;
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}
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/* Kvazaar requires width and height to be multiples of eight. */
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if (avctx->width % 8 || avctx->height % 8) {
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av_log(avctx, AV_LOG_ERROR,
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"Video dimensions are not a multiple of 8 (%dx%d).\n",
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avctx->width, avctx->height);
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return AVERROR(ENOSYS);
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}
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ctx->config = cfg = api->config_alloc();
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if (!cfg) {
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av_log(avctx, AV_LOG_ERROR,
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"Could not allocate kvazaar config structure.\n");
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return AVERROR(ENOMEM);
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}
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if (!api->config_init(cfg)) {
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av_log(avctx, AV_LOG_ERROR,
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"Could not initialize kvazaar config structure.\n");
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return AVERROR_BUG;
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}
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cfg->width = avctx->width;
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cfg->height = avctx->height;
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cfg->framerate =
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avctx->time_base.den / (double)(avctx->time_base.num * avctx->ticks_per_frame);
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cfg->target_bitrate = avctx->bit_rate;
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cfg->vui.sar_width = avctx->sample_aspect_ratio.num;
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cfg->vui.sar_height = avctx->sample_aspect_ratio.den;
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if (ctx->kvz_params) {
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AVDictionary *dict = NULL;
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if (!av_dict_parse_string(&dict, ctx->kvz_params, "=", ",", 0)) {
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AVDictionaryEntry *entry = NULL;
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while ((entry = av_dict_get(dict, "", entry, AV_DICT_IGNORE_SUFFIX))) {
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if (!api->config_parse(cfg, entry->key, entry->value)) {
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av_log(avctx, AV_LOG_WARNING, "Invalid option: %s=%s.\n",
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entry->key, entry->value);
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}
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}
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av_dict_free(&dict);
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}
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}
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ctx->encoder = enc = api->encoder_open(cfg);
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if (!enc) {
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av_log(avctx, AV_LOG_ERROR, "Could not open kvazaar encoder.\n");
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return AVERROR_BUG;
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}
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if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
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kvz_data_chunk *data_out = NULL;
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kvz_data_chunk *chunk = NULL;
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uint32_t len_out;
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uint8_t *p;
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if (!api->encoder_headers(enc, &data_out, &len_out))
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return AVERROR(ENOMEM);
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avctx->extradata = p = av_mallocz(len_out + AV_INPUT_BUFFER_PADDING_SIZE);
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if (!p) {
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ctx->api->chunk_free(data_out);
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return AVERROR(ENOMEM);
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}
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avctx->extradata_size = len_out;
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for (chunk = data_out; chunk != NULL; chunk = chunk->next) {
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memcpy(p, chunk->data, chunk->len);
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p += chunk->len;
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}
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ctx->api->chunk_free(data_out);
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}
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return 0;
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}
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static av_cold int libkvazaar_close(AVCodecContext *avctx)
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{
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LibkvazaarContext *ctx = avctx->priv_data;
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if (ctx->api) {
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ctx->api->encoder_close(ctx->encoder);
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ctx->api->config_destroy(ctx->config);
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}
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if (avctx->extradata)
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av_freep(&avctx->extradata);
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return 0;
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}
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static int libkvazaar_encode(AVCodecContext *avctx,
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AVPacket *avpkt,
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const AVFrame *frame,
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int *got_packet_ptr)
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{
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LibkvazaarContext *ctx = avctx->priv_data;
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kvz_picture *input_pic = NULL;
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kvz_picture *recon_pic = NULL;
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kvz_frame_info frame_info;
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kvz_data_chunk *data_out = NULL;
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uint32_t len_out = 0;
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int retval = 0;
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if (frame) {
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if (frame->width != ctx->config->width ||
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frame->height != ctx->config->height) {
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av_log(avctx, AV_LOG_ERROR,
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"Changing video dimensions during encoding is not supported. "
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"(changed from %dx%d to %dx%d)\n",
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ctx->config->width, ctx->config->height,
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frame->width, frame->height);
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retval = AVERROR_INVALIDDATA;
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goto done;
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}
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if (frame->format != avctx->pix_fmt) {
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av_log(avctx, AV_LOG_ERROR,
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"Changing pixel format during encoding is not supported. "
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"(changed from %s to %s)\n",
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av_get_pix_fmt_name(avctx->pix_fmt),
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av_get_pix_fmt_name(frame->format));
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retval = AVERROR_INVALIDDATA;
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goto done;
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}
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// Allocate input picture for kvazaar.
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input_pic = ctx->api->picture_alloc(frame->width, frame->height);
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if (!input_pic) {
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av_log(avctx, AV_LOG_ERROR, "Failed to allocate picture.\n");
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retval = AVERROR(ENOMEM);
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goto done;
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}
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// Copy pixels from frame to input_pic.
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{
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int dst_linesizes[4] = {
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frame->width,
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frame->width / 2,
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frame->width / 2,
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0
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};
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av_image_copy(input_pic->data, dst_linesizes,
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frame->data, frame->linesize,
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frame->format, frame->width, frame->height);
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}
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input_pic->pts = frame->pts;
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}
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retval = ctx->api->encoder_encode(ctx->encoder,
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input_pic,
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&data_out, &len_out,
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&recon_pic, NULL,
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&frame_info);
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if (!retval) {
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av_log(avctx, AV_LOG_ERROR, "Failed to encode frame.\n");
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retval = AVERROR_INVALIDDATA;
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goto done;
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}
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if (data_out) {
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kvz_data_chunk *chunk = NULL;
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uint64_t written = 0;
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retval = ff_alloc_packet(avpkt, len_out);
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if (retval < 0) {
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av_log(avctx, AV_LOG_ERROR, "Failed to allocate output packet.\n");
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goto done;
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}
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for (chunk = data_out; chunk != NULL; chunk = chunk->next) {
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memcpy(avpkt->data + written, chunk->data, chunk->len);
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written += chunk->len;
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}
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avpkt->pts = recon_pic->pts;
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avpkt->dts = recon_pic->dts;
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avpkt->flags = 0;
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// IRAP VCL NAL unit types span the range
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// [BLA_W_LP (16), RSV_IRAP_VCL23 (23)].
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if (frame_info.nal_unit_type >= KVZ_NAL_BLA_W_LP &&
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frame_info.nal_unit_type <= KVZ_NAL_RSV_IRAP_VCL23) {
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avpkt->flags |= AV_PKT_FLAG_KEY;
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}
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*got_packet_ptr = 1;
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}
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done:
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ctx->api->picture_free(input_pic);
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ctx->api->picture_free(recon_pic);
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ctx->api->chunk_free(data_out);
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return retval;
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}
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static const enum AVPixelFormat pix_fmts[] = {
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AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_NONE
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};
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#define OFFSET(x) offsetof(LibkvazaarContext, 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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{ "kvazaar-params", "Set kvazaar parameters as a comma-separated list of key=value pairs.",
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OFFSET(kvz_params), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VE },
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{ NULL },
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};
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static const AVClass class = {
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.class_name = "libkvazaar",
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.item_name = av_default_item_name,
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.option = options,
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.version = LIBAVUTIL_VERSION_INT,
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};
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static const AVCodecDefault defaults[] = {
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{ "b", "0" },
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{ NULL },
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};
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AVCodec ff_libkvazaar_encoder = {
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.name = "libkvazaar",
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.long_name = NULL_IF_CONFIG_SMALL("libkvazaar H.265 / HEVC"),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_HEVC,
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.capabilities = AV_CODEC_CAP_DELAY,
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.pix_fmts = pix_fmts,
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.priv_class = &class,
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.priv_data_size = sizeof(LibkvazaarContext),
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.defaults = defaults,
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.init = libkvazaar_init,
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.encode2 = libkvazaar_encode,
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.close = libkvazaar_close,
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.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
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};
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#include "libavutil/version.h"
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#define LIBAVCODEC_VERSION_MAJOR 57
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#define LIBAVCODEC_VERSION_MINOR 5
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#define LIBAVCODEC_VERSION_MINOR 6
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#define LIBAVCODEC_VERSION_MICRO 0
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#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
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