[FFmpeg-devel] avcodec: libdav1d AV1 decoder wrapper

Message ID	20180928214202.6884-1-jamrial@gmail.com
State	New
Headers	show Delivered-To: ffmpegpatchwork@gmail.com Received-SPF: pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) client-ip=79.124.17.100; From: James Almer <jamrial@gmail.com> To: ffmpeg-devel@ffmpeg.org Date: Fri, 28 Sep 2018 18:42:02 -0300 Message-Id: <20180928214202.6884-1-jamrial@gmail.com> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH] avcodec: libdav1d AV1 decoder wrapper Precedence: list Reply-To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" <ffmpeg-devel-bounces@ffmpeg.org>

diff --git a/configure b/configure index fdca47cf2c..8cd8fbd353 100755 --- a/configure +++ b/configure @@ -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 @@ -3087,6 +3089,7 @@ 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" @@ -6062,6 +6065,7 @@ 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 diff --git a/libavcodec/Makefile b/libavcodec/Makefile index b9cc20b5ef..6cfbfbcff6 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -954,6 +954,7 @@ 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 diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index c0b4d56d0d..d2628df620 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -674,6 +674,7 @@ 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; diff --git a/libavcodec/libdav1d.c b/libavcodec/libdav1d.c new file mode 100644 index 0000000000..26ebf769e7 --- /dev/null +++ b/libavcodec/libdav1d.c @@ -0,0 +1,267 @@ +/* + * 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 frame_threads, tile_threads; +} Libdav1dContext; + +static av_cold int libdav1d_init(AVCodecContext *c) +{ + Libdav1dContext *dav1d = c->priv_data; + Dav1dSettings s; + int res; + + dav1d_init(); + dav1d_default_settings(&s); + + av_log(c, AV_LOG_VERBOSE, "%s\n", dav1d_version()); + + s.n_tile_threads = dav1d->tile_threads; + s.n_frame_threads = dav1d->frame_threads; + + 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); + + c->has_b_frames = 1; + + return 0; +} + +static void clear_cache(AVCodecContext *c) +{ + Libdav1dContext *dav1d = c->priv_data; + AVPacket pkt; + + while (av_fifo_size(dav1d->cache)) { + av_fifo_generic_read(dav1d->cache, &pkt, sizeof(pkt), NULL); + av_packet_unref(&pkt); + } + + dav1d_data_unref(&dav1d->data); +} + +static av_cold int libdav1d_close(AVCodecContext *c) +{ + Libdav1dContext *dav1d = c->priv_data; + + clear_cache(c); + av_fifo_freep(&dav1d->cache); + + dav1d_close(&dav1d->c); + + return 0; +} + +static void libdav1d_flush(AVCodecContext *c) +{ + Libdav1dContext *dav1d = c->priv_data; + + clear_cache(c); + + dav1d_flush(dav1d->c); +} + +static void libdav1d_data_free_wrapper(uint8_t *data, void *opaque) { + AVBufferRef *buf = opaque; + + av_buffer_unref(&buf); +} + +static void libdav1d_frame_free_wrapper(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 int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame) +{ + Libdav1dContext *dav1d = c->priv_data; + Dav1dData *data_ptr; + AVPacket pkt = { 0 }; + Dav1dPicture p = { 0 }; + int res; + + if (!dav1d->data.sz) { + res = ff_decode_get_packet(c, &pkt); + if (res < 0 && res != AVERROR_EOF) + return res; + + if (pkt.size) { + AVBufferRef *buf; + + if (!av_fifo_space(dav1d->cache)) { + res = av_fifo_grow(dav1d->cache, 8 * sizeof(pkt)); + if (res < 0) + return res; + } + + av_fifo_generic_write(dav1d->cache, &pkt, sizeof(pkt), NULL); + + buf = av_buffer_ref(pkt.buf); + if (!buf) + return AVERROR(ENOMEM); + + data_ptr = &dav1d->data; + res = dav1d_data_wrap(data_ptr, pkt.data, pkt.size, libdav1d_data_free_wrapper, buf); + if (res < 0) { + av_buffer_unref(&buf); + return res; + } + } else { + data_ptr = NULL; + } + } else + data_ptr = &dav1d->data; + + res = dav1d_decode(dav1d->c, data_ptr, &p); + if (res < 0 && res == -EINVAL) + return AVERROR_INVALIDDATA; + + if (!res) { + 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 profiles[] = { + [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, + }; + int err; + + av_assert0(p.data[0] != NULL); + + c->profile = profiles[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) { + err = ff_set_dimensions(c, p.p.w, p.p.h); + if (err < 0) + return err; + } + + 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 = p.p.mtrx; + frame->color_primaries = c->color_primaries = p.p.pri; + frame->color_trc = c->color_trc = p.p.trc; + frame->color_range = c->color_range = p.p.fullrange ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG; + + frame->buf[0] = av_buffer_create(NULL, 0, + libdav1d_frame_free_wrapper, + p.ref, AV_BUFFER_FLAG_READONLY); + if (!frame->buf[0]) + 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]; + + av_fifo_generic_read(dav1d->cache, &pkt, sizeof(pkt), NULL); + + // match timestamps and packet size + frame->pkt_pos = pkt.pos; + 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_size = pkt.size; + frame->pkt_duration = pkt.duration; + frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY); + frame->pict_type = frame->key_frame ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P; + av_packet_unref(&pkt); + } + + return res == -EAGAIN && c->internal->draining ? AVERROR_EOF : res; +} + +#define OFFSET(x) offsetof(Libdav1dContext, x) +#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM +static const AVOption libdav1d_options[] = { + { "framethreads", "Frame threads", OFFSET(frame_threads), + AV_OPT_TYPE_INT, { .i64 = 1 }, 1, 256, VD, NULL }, + { "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, + .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", +};

[FFmpeg-devel] avcodec: libdav1d AV1 decoder wrapper

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