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avcodec: libdav1d AV1 decoder wrapper. 

Originally written by Ronald S. Bultje, with fixes, optimizations and
improvements by James Almer.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2018-05-21 17:46:48 -04:00
parent f5894178fb
commit beaa350e24
7 changed files with 282 additions and 4 deletions
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2
Changelog
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@ -3,6 +3,8 @@ releases are sorted from youngest to oldest.
version <next>:
- tpad filter
- AV1 decoding support through libdav1d
version 4.1:
- deblock filter

4
configure vendored
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@ -226,6 +226,7 @@ External library support:
--enable-libcelt enable CELT decoding via libcelt [no]
--enable-libcdio enable audio CD grabbing with libcdio [no]
--enable-libcodec2 enable codec2 en/decoding using libcodec2 [no]
--enable-libdav1d enable AV1 decoding via libdav1d [no]
--enable-libdavs2 enable AVS2 decoding via libdavs2 [no]
--enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
and libraw1394 [no]
@ -1712,6 +1713,7 @@ EXTERNAL_LIBRARY_LIST="
libcaca
libcelt
libcodec2
libdav1d
libdc1394
libdrm
libflite
@ -3090,6 +3092,7 @@ libaom_av1_encoder_select="extract_extradata_bsf"
libcelt_decoder_deps="libcelt"
libcodec2_decoder_deps="libcodec2"
libcodec2_encoder_deps="libcodec2"
libdav1d_decoder_deps="libdav1d"
libdavs2_decoder_deps="libdavs2"
libfdk_aac_decoder_deps="libfdk_aac"
libfdk_aac_encoder_deps="libfdk_aac"
@ -6068,6 +6071,7 @@ enabled libcelt && require libcelt celt/celt.h celt_decode -lcelt0 &&
die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
enabled libcaca && require_pkg_config libcaca caca caca.h caca_create_canvas
enabled libcodec2 && require libcodec2 codec2/codec2.h codec2_create -lcodec2
enabled libdav1d && require_pkg_config libdav1d "dav1d >= 0.0.1" "dav1d/dav1d.h" dav1d_version
enabled libdavs2 && require_pkg_config libdavs2 "davs2 >= 1.5.115" davs2.h davs2_decoder_open
enabled libdc1394 && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
enabled libdrm && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion

4
doc/general.texi
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@ -758,8 +758,8 @@ following image formats are supported:
@item Autodesk Animator Flic video @tab @tab X
@item Autodesk RLE @tab @tab X
@tab fourcc: AASC
@item AV1 @tab @tab E
@tab Supported through external library libaom
@item AV1 @tab E @tab E
@tab Supported through external libraries libaom and libdav1d
@item Avid 1:1 10-bit RGB Packer @tab X @tab X
@tab fourcc: AVrp
@item AVS (Audio Video Standard) video @tab @tab X

1
libavcodec/Makefile
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@ -956,6 +956,7 @@ OBJS-$(CONFIG_LIBAOM_AV1_ENCODER) += libaomenc.o
OBJS-$(CONFIG_LIBCELT_DECODER) += libcelt_dec.o
OBJS-$(CONFIG_LIBCODEC2_DECODER) += libcodec2.o codec2utils.o
OBJS-$(CONFIG_LIBCODEC2_ENCODER) += libcodec2.o codec2utils.o
OBJS-$(CONFIG_LIBDAV1D_DECODER) += libdav1d.o
OBJS-$(CONFIG_LIBDAVS2_DECODER) += libdavs2.o
OBJS-$(CONFIG_LIBFDK_AAC_DECODER) += libfdk-aacdec.o
OBJS-$(CONFIG_LIBFDK_AAC_ENCODER) += libfdk-aacenc.o

1
libavcodec/allcodecs.c
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@ -676,6 +676,7 @@ extern AVCodec ff_libaom_av1_encoder;
extern AVCodec ff_libcelt_decoder;
extern AVCodec ff_libcodec2_encoder;
extern AVCodec ff_libcodec2_decoder;
extern AVCodec ff_libdav1d_decoder;
extern AVCodec ff_libdavs2_decoder;
extern AVCodec ff_libfdk_aac_encoder;
extern AVCodec ff_libfdk_aac_decoder;

270
libavcodec/libdav1d.c Normal file
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@ -0,0 +1,270 @@
/*
* Copyright (c) 2018 Ronald S. Bultje <rsbultje gmail com>
* Copyright (c) 2018 James Almer <jamrial gmail com>
*
* 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <dav1d/dav1d.h>
#include "libavutil/avassert.h"
#include "libavutil/fifo.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "decode.h"
#include "internal.h"
typedef struct Libdav1dContext {
AVClass *class;
Dav1dContext *c;
AVFifoBuffer *cache;
Dav1dData data;
int tile_threads;
} Libdav1dContext;
static av_cold int libdav1d_init(AVCodecContext *c)
{
Libdav1dContext *dav1d = c->priv_data;
Dav1dSettings s;
int res;
av_log(c, AV_LOG_INFO, "libdav1d %s\n", dav1d_version());
dav1d_default_settings(&s);
s.n_tile_threads = dav1d->tile_threads;
s.n_frame_threads = FFMIN(c->thread_count ? c->thread_count : av_cpu_count(), 256);
dav1d->cache = av_fifo_alloc(8 * sizeof(AVPacket));
if (!dav1d->cache)
return AVERROR(ENOMEM);
res = dav1d_open(&dav1d->c, &s);
if (res < 0)
return AVERROR(ENOMEM);
return 0;
}
static void libdav1d_flush(AVCodecContext *c)
{
Libdav1dContext *dav1d = c->priv_data;
av_fifo_reset(dav1d->cache);
dav1d_data_unref(&dav1d->data);
dav1d_flush(dav1d->c);
}
static int libdav1d_fifo_write(void *src, void *dst, int dst_size) {
AVPacket *pkt_dst = dst, *pkt_src = src;
av_assert2(dst_size >= sizeof(AVPacket));
pkt_src->buf = NULL;
av_packet_free_side_data(pkt_src);
*pkt_dst = *pkt_src;
return sizeof(AVPacket);
}
static void libdav1d_data_free(const uint8_t *data, void *opaque) {
AVBufferRef *buf = opaque;
av_buffer_unref(&buf);
}
static void libdav1d_frame_free(void *opaque, uint8_t *data) {
Dav1dPicture p = { 0 };
p.ref = opaque;
p.data[0] = (void *) 0x1; // this has to be non-NULL
dav1d_picture_unref(&p);
}
static const enum AVPixelFormat pix_fmt[][2] = {
[DAV1D_PIXEL_LAYOUT_I400] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10 },
[DAV1D_PIXEL_LAYOUT_I420] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P10 },
[DAV1D_PIXEL_LAYOUT_I422] = { AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P10 },
[DAV1D_PIXEL_LAYOUT_I444] = { AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10 },
};
// TODO: Update once 12bit support is added.
static const int profile[] = {
[DAV1D_PIXEL_LAYOUT_I400] = FF_PROFILE_AV1_MAIN,
[DAV1D_PIXEL_LAYOUT_I420] = FF_PROFILE_AV1_MAIN,
[DAV1D_PIXEL_LAYOUT_I422] = FF_PROFILE_AV1_PROFESSIONAL,
[DAV1D_PIXEL_LAYOUT_I444] = FF_PROFILE_AV1_HIGH,
};
static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
{
Libdav1dContext *dav1d = c->priv_data;
Dav1dData *data = &dav1d->data;
AVPacket pkt = { 0 };
Dav1dPicture p = { 0 };
int res;
if (!data->sz) {
res = ff_decode_get_packet(c, &pkt);
if (res < 0 && res != AVERROR_EOF)
return res;
if (pkt.size) {
if (!av_fifo_space(dav1d->cache)) {
res = av_fifo_grow(dav1d->cache, 8 * sizeof(pkt));
if (res < 0) {
av_packet_unref(&pkt);
return res;
}
}
res = dav1d_data_wrap(data, pkt.data, pkt.size, libdav1d_data_free, pkt.buf);
if (res < 0) {
av_packet_unref(&pkt);
return res;
}
av_fifo_generic_write(dav1d->cache, &pkt, sizeof(pkt), libdav1d_fifo_write);
} else {
data = NULL;
}
}
res = dav1d_decode(dav1d->c, data, &p);
if (res < 0) {
if (res == -EINVAL)
res = AVERROR_INVALIDDATA;
else if (res == -EAGAIN && c->internal->draining)
res = AVERROR_EOF;
return res;
}
av_assert0(p.data[0] != NULL);
av_fifo_generic_read(dav1d->cache, &pkt, sizeof(pkt), NULL);
frame->buf[0] = av_buffer_create(NULL, 0, libdav1d_frame_free,
p.ref, AV_BUFFER_FLAG_READONLY);
if (!frame->buf[0]) {
dav1d_picture_unref(&p);
return AVERROR(ENOMEM);
}
frame->data[0] = p.data[0];
frame->data[1] = p.data[1];
frame->data[2] = p.data[2];
frame->linesize[0] = p.stride[0];
frame->linesize[1] = p.stride[1];
frame->linesize[2] = p.stride[1];
c->profile = profile[p.p.layout];
frame->format = c->pix_fmt = pix_fmt[p.p.layout][p.p.bpc == 10];
frame->width = p.p.w;
frame->height = p.p.h;
if (c->width != p.p.w || c->height != p.p.h) {
res = ff_set_dimensions(c, p.p.w, p.p.h);
if (res < 0)
return res;
}
switch (p.p.chr) {
case DAV1D_CHR_VERTICAL:
frame->chroma_location = c->chroma_sample_location = AVCHROMA_LOC_LEFT;
break;
case DAV1D_CHR_COLOCATED:
frame->chroma_location = c->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
break;
}
frame->colorspace = c->colorspace = (enum AVColorSpace) p.p.mtrx;
frame->color_primaries = c->color_primaries = (enum AVColorPrimaries) p.p.pri;
frame->color_trc = c->color_trc = (enum AVColorTransferCharacteristic) p.p.trc;
frame->color_range = c->color_range = p.p.fullrange ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
// match timestamps and packet size
frame->pts = frame->best_effort_timestamp = pkt.pts;
#if FF_API_PKT_PTS
FF_DISABLE_DEPRECATION_WARNINGS
frame->pkt_pts = pkt.pts;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
frame->pkt_dts = pkt.dts;
frame->pkt_pos = pkt.pos;
frame->pkt_size = pkt.size;
frame->pkt_duration = pkt.duration;
frame->key_frame = p.p.type == DAV1D_FRAME_TYPE_KEY;
switch (p.p.type) {
case DAV1D_FRAME_TYPE_KEY:
case DAV1D_FRAME_TYPE_INTRA:
frame->pict_type = AV_PICTURE_TYPE_I;
break;
case DAV1D_FRAME_TYPE_INTER:
frame->pict_type = AV_PICTURE_TYPE_P;
break;
case DAV1D_FRAME_TYPE_SWITCH:
frame->pict_type = AV_PICTURE_TYPE_SP;
break;
default:
return AVERROR_INVALIDDATA;
}
return 0;
}
static av_cold int libdav1d_close(AVCodecContext *c)
{
Libdav1dContext *dav1d = c->priv_data;
av_fifo_freep(&dav1d->cache);
dav1d_data_unref(&dav1d->data);
dav1d_close(&dav1d->c);
return 0;
}
#define OFFSET(x) offsetof(Libdav1dContext, x)
#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
static const AVOption libdav1d_options[] = {
{ "tilethreads", "Tile threads", OFFSET(tile_threads), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, 64, VD, NULL },
{ NULL }
};
static const AVClass libdav1d_class = {
.class_name = "libdav1d decoder",
.item_name = av_default_item_name,
.option = libdav1d_options,
.version = LIBAVUTIL_VERSION_INT,
};
AVCodec ff_libdav1d_decoder = {
.name = "libdav1d",
.long_name = NULL_IF_CONFIG_SMALL("dav1d AV1 decoder by VideoLAN"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_AV1,
.priv_data_size = sizeof(Libdav1dContext),
.init = libdav1d_init,
.close = libdav1d_close,
.flush = libdav1d_flush,
.receive_frame = libdav1d_receive_frame,
.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
FF_CODEC_CAP_SETS_PKT_DTS,
.priv_class = &libdav1d_class,
.wrapper_name = "libdav1d",
};

4
libavcodec/version.h
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@ -28,8 +28,8 @@
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 58
#define LIBAVCODEC_VERSION_MINOR 38
#define LIBAVCODEC_VERSION_MICRO 102
#define LIBAVCODEC_VERSION_MINOR 39
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \