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kvazaar: Add libkvazaar HEVC encoder

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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:
Arttu Ylä-Outinen 2015-08-25 11:33:19 +03:00 committed by Luca Barbato
parent 18f9308e6a
commit 233d2fa044
8 changed files with 338 additions and 2 deletions
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1
Changelog
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@ -45,6 +45,7 @@ version <next>:
- DXV decoding
- Screenpresso SPV1 decoding
- zero-copy Intel QSV transcoding in avconv
- libkvazaar HEVC encoder
version 11:

4
configure vendored
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@ -191,6 +191,7 @@ External library support:
--enable-libfreetype enable libfreetype [no]
--enable-libgsm enable GSM de/encoding via libgsm [no]
--enable-libilbc enable iLBC de/encoding via libilbc [no]
--enable-libkvazaar enable HEVC encoding via libkvazaar [no]
--enable-libmfx enable HW acceleration through libmfx
--enable-libmp3lame enable MP3 encoding via libmp3lame [no]
--enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
@ -1186,6 +1187,7 @@ EXTERNAL_LIBRARY_LIST="
libfreetype
libgsm
libilbc
libkvazaar
libmfx
libmp3lame
libopencore_amrnb
@ -2133,6 +2135,7 @@ libgsm_ms_decoder_deps="libgsm"
libgsm_ms_encoder_deps="libgsm"
libilbc_decoder_deps="libilbc"
libilbc_encoder_deps="libilbc"
libkvazaar_encoder_deps="libkvazaar"
libmp3lame_encoder_deps="libmp3lame"
libmp3lame_encoder_select="audio_frame_queue"
libopencore_amrnb_decoder_deps="libopencore_amrnb"
@ -4420,6 +4423,7 @@ enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
check_lib "${gsm_hdr}" gsm_create -lgsm && break;
done || die "ERROR: libgsm not found"; }
enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
enabled libkvazaar && require_pkg_config "kvazaar >= 0.7.1" kvazaar.h kvz_api_get
enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

21
doc/encoders.texi
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@ -813,4 +813,25 @@ Setting a higher @option{bits_per_mb} limit will improve the speed.
For the fastest encoding speed set the @option{qscale} parameter (4 is the
recommended value) and do not set a size constraint.
@section libkvazaar
Kvazaar H.265/HEVC encoder.
Requires the presence of the libkvazaar headers and library during
configuration. You need to explicitly configure the build with
@option{--enable-libkvazaar}.
@subsection Options
@table @option
@item b
Set target video bitrate in bit/s and enable rate control.
@item kvazaar-params
Set kvazaar parameters as a list of @var{name}=@var{value} pairs separated
by commas (,). See kvazaar documentation for a list of options.
@end table
@c man end VIDEO ENCODERS

10
doc/general.texi
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@ -131,6 +131,14 @@ x265 is under the GNU Public License Version 2 or later
details), you must upgrade Libav's license to GPL in order to use it.
@end float
@section kvazaar
Libav can make use of the kvazaar library for HEVC encoding.
Go to @url{https://github.com/ultravideo/kvazaar} and follow the
instructions for installing the library. Then pass
@code{--enable-libkvazaar} to configure to enable it.
@section libilbc
iLBC is a narrowband speech codec that has been made freely available
@ -630,7 +638,7 @@ following image formats are supported:
@item H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 @tab E @tab X
@tab encoding supported through external library libx264 and OpenH264
@item HEVC @tab X @tab X
@tab encoding supported through the external library libx265
@tab encoding supported through external library libx265 and libkvazaar
@item HNM version 4 @tab @tab X
@item HuffYUV @tab X @tab X
@item HuffYUV FFmpeg variant @tab X @tab X

1
libavcodec/Makefile
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@ -655,6 +655,7 @@ OBJS-$(CONFIG_LIBGSM_MS_DECODER) += libgsmdec.o
OBJS-$(CONFIG_LIBGSM_MS_ENCODER) += libgsmenc.o
OBJS-$(CONFIG_LIBILBC_DECODER) += libilbc.o
OBJS-$(CONFIG_LIBILBC_ENCODER) += libilbc.o
OBJS-$(CONFIG_LIBKVAZAAR_ENCODER) += libkvazaar.o
OBJS-$(CONFIG_LIBMP3LAME_ENCODER) += libmp3lame.o mpegaudiodecheader.o
OBJS-$(CONFIG_LIBOPENCORE_AMRNB_DECODER) += libopencore-amr.o
OBJS-$(CONFIG_LIBOPENCORE_AMRNB_ENCODER) += libopencore-amr.o

1
libavcodec/allcodecs.c
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@ -491,6 +491,7 @@ void avcodec_register_all(void)
REGISTER_ENCODER(LIBOPENH264, libopenh264);
REGISTER_ENCODER(H264_NVENC, h264_nvenc);
REGISTER_ENCODER(H264_QSV, h264_qsv);
REGISTER_ENCODER(LIBKVAZAAR, libkvazaar);
REGISTER_ENCODER(HEVC_NVENC, hevc_nvenc);
REGISTER_ENCODER(HEVC_QSV, hevc_qsv);
REGISTER_ENCODER(MPEG2_QSV, mpeg2_qsv);

300
libavcodec/libkvazaar.c Normal file
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@ -0,0 +1,300 @@
/*
* libkvazaar encoder
*
* Copyright (c) 2015 Tampere University of Technology
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <kvazaar.h>
#include <string.h>
#include "libavutil/dict.h"
#include "libavutil/error.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "internal.h"
typedef struct LibkvazaarContext {
const AVClass *class;
const kvz_api *api;
kvz_encoder *encoder;
kvz_config *config;
char *kvz_params;
} LibkvazaarContext;
static av_cold int libkvazaar_init(AVCodecContext *avctx)
{
LibkvazaarContext *const ctx = avctx->priv_data;
const kvz_api *const api = ctx->api = kvz_api_get(8);
kvz_config *cfg = NULL;
kvz_encoder *enc = NULL;
if (avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
av_log(avctx, AV_LOG_ERROR,
"Set -strict experimental to use this encoder.\n");
return AVERROR_EXPERIMENTAL;
}
/* Kvazaar requires width and height to be multiples of eight. */
if (avctx->width % 8 || avctx->height % 8) {
av_log(avctx, AV_LOG_ERROR,
"Video dimensions are not a multiple of 8 (%dx%d).\n",
avctx->width, avctx->height);
return AVERROR(ENOSYS);
}
ctx->config = cfg = api->config_alloc();
if (!cfg) {
av_log(avctx, AV_LOG_ERROR,
"Could not allocate kvazaar config structure.\n");
return AVERROR(ENOMEM);
}
if (!api->config_init(cfg)) {
av_log(avctx, AV_LOG_ERROR,
"Could not initialize kvazaar config structure.\n");
return AVERROR_BUG;
}
cfg->width = avctx->width;
cfg->height = avctx->height;
cfg->framerate =
avctx->time_base.den / (double)(avctx->time_base.num * avctx->ticks_per_frame);
cfg->target_bitrate = avctx->bit_rate;
cfg->vui.sar_width = avctx->sample_aspect_ratio.num;
cfg->vui.sar_height = avctx->sample_aspect_ratio.den;
if (ctx->kvz_params) {
AVDictionary *dict = NULL;
if (!av_dict_parse_string(&dict, ctx->kvz_params, "=", ",", 0)) {
AVDictionaryEntry *entry = NULL;
while ((entry = av_dict_get(dict, "", entry, AV_DICT_IGNORE_SUFFIX))) {
if (!api->config_parse(cfg, entry->key, entry->value)) {
av_log(avctx, AV_LOG_WARNING, "Invalid option: %s=%s.\n",
entry->key, entry->value);
}
}
av_dict_free(&dict);
}
}
ctx->encoder = enc = api->encoder_open(cfg);
if (!enc) {
av_log(avctx, AV_LOG_ERROR, "Could not open kvazaar encoder.\n");
return AVERROR_BUG;
}
if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
kvz_data_chunk *data_out = NULL;
kvz_data_chunk *chunk = NULL;
uint32_t len_out;
uint8_t *p;
if (!api->encoder_headers(enc, &data_out, &len_out))
return AVERROR(ENOMEM);
avctx->extradata = p = av_mallocz(len_out + AV_INPUT_BUFFER_PADDING_SIZE);
if (!p) {
ctx->api->chunk_free(data_out);
return AVERROR(ENOMEM);
}
avctx->extradata_size = len_out;
for (chunk = data_out; chunk != NULL; chunk = chunk->next) {
memcpy(p, chunk->data, chunk->len);
p += chunk->len;
}
ctx->api->chunk_free(data_out);
}
return 0;
}
static av_cold int libkvazaar_close(AVCodecContext *avctx)
{
LibkvazaarContext *ctx = avctx->priv_data;
if (ctx->api) {
ctx->api->encoder_close(ctx->encoder);
ctx->api->config_destroy(ctx->config);
}
if (avctx->extradata)
av_freep(&avctx->extradata);
return 0;
}
static int libkvazaar_encode(AVCodecContext *avctx,
AVPacket *avpkt,
const AVFrame *frame,
int *got_packet_ptr)
{
LibkvazaarContext *ctx = avctx->priv_data;
kvz_picture *input_pic = NULL;
kvz_picture *recon_pic = NULL;
kvz_frame_info frame_info;
kvz_data_chunk *data_out = NULL;
uint32_t len_out = 0;
int retval = 0;
if (frame) {
if (frame->width != ctx->config->width ||
frame->height != ctx->config->height) {
av_log(avctx, AV_LOG_ERROR,
"Changing video dimensions during encoding is not supported. "
"(changed from %dx%d to %dx%d)\n",
ctx->config->width, ctx->config->height,
frame->width, frame->height);
retval = AVERROR_INVALIDDATA;
goto done;
}
if (frame->format != avctx->pix_fmt) {
av_log(avctx, AV_LOG_ERROR,
"Changing pixel format during encoding is not supported. "
"(changed from %s to %s)\n",
av_get_pix_fmt_name(avctx->pix_fmt),
av_get_pix_fmt_name(frame->format));
retval = AVERROR_INVALIDDATA;
goto done;
}
// Allocate input picture for kvazaar.
input_pic = ctx->api->picture_alloc(frame->width, frame->height);
if (!input_pic) {
av_log(avctx, AV_LOG_ERROR, "Failed to allocate picture.\n");
retval = AVERROR(ENOMEM);
goto done;
}
// Copy pixels from frame to input_pic.
{
int dst_linesizes[4] = {
frame->width,
frame->width / 2,
frame->width / 2,
0
};
av_image_copy(input_pic->data, dst_linesizes,
frame->data, frame->linesize,
frame->format, frame->width, frame->height);
}
input_pic->pts = frame->pts;
}
retval = ctx->api->encoder_encode(ctx->encoder,
input_pic,
&data_out, &len_out,
&recon_pic, NULL,
&frame_info);
if (!retval) {
av_log(avctx, AV_LOG_ERROR, "Failed to encode frame.\n");
retval = AVERROR_INVALIDDATA;
goto done;
}
if (data_out) {
kvz_data_chunk *chunk = NULL;
uint64_t written = 0;
retval = ff_alloc_packet(avpkt, len_out);
if (retval < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to allocate output packet.\n");
goto done;
}
for (chunk = data_out; chunk != NULL; chunk = chunk->next) {
memcpy(avpkt->data + written, chunk->data, chunk->len);
written += chunk->len;
}
avpkt->pts = recon_pic->pts;
avpkt->dts = recon_pic->dts;
avpkt->flags = 0;
// IRAP VCL NAL unit types span the range
// [BLA_W_LP (16), RSV_IRAP_VCL23 (23)].
if (frame_info.nal_unit_type >= KVZ_NAL_BLA_W_LP &&
frame_info.nal_unit_type <= KVZ_NAL_RSV_IRAP_VCL23) {
avpkt->flags |= AV_PKT_FLAG_KEY;
}
*got_packet_ptr = 1;
}
done:
ctx->api->picture_free(input_pic);
ctx->api->picture_free(recon_pic);
ctx->api->chunk_free(data_out);
return retval;
}
static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_YUV420P,
AV_PIX_FMT_NONE
};
#define OFFSET(x) offsetof(LibkvazaarContext, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{ "kvazaar-params", "Set kvazaar parameters as a comma-separated list of key=value pairs.",
OFFSET(kvz_params), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VE },
{ NULL },
};
static const AVClass class = {
.class_name = "libkvazaar",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
static const AVCodecDefault defaults[] = {
{ "b", "0" },
{ NULL },
};
AVCodec ff_libkvazaar_encoder = {
.name = "libkvazaar",
.long_name = NULL_IF_CONFIG_SMALL("libkvazaar H.265 / HEVC"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_HEVC,
.capabilities = AV_CODEC_CAP_DELAY,
.pix_fmts = pix_fmts,
.priv_class = &class,
.priv_data_size = sizeof(LibkvazaarContext),
.defaults = defaults,
.init = libkvazaar_init,
.encode2 = libkvazaar_encode,
.close = libkvazaar_close,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
};

2
libavcodec/version.h
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@ -29,7 +29,7 @@
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 57
#define LIBAVCODEC_VERSION_MINOR 5
#define LIBAVCODEC_VERSION_MINOR 6
#define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \