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420 lines
14 KiB
C
Executable File
420 lines
14 KiB
C
Executable File
/*
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* Copyright (c) 2018 Ronald S. Bultje <rsbultje gmail com>
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* Copyright (c) 2018 James Almer <jamrial 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 <dav1d/dav1d.h>
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#include "libavutil/avassert.h"
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#include "libavutil/mastering_display_metadata.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/opt.h"
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#include "avcodec.h"
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#include "decode.h"
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#include "internal.h"
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typedef struct Libdav1dContext {
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AVClass *class;
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Dav1dContext *c;
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AVBufferPool *pool;
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int pool_size;
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Dav1dData data;
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int tile_threads;
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int frame_threads;
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int apply_grain;
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int operating_point;
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int all_layers;
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} Libdav1dContext;
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static const enum AVPixelFormat pix_fmt[][3] = {
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[DAV1D_PIXEL_LAYOUT_I400] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12 },
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[DAV1D_PIXEL_LAYOUT_I420] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12 },
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[DAV1D_PIXEL_LAYOUT_I422] = { AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12 },
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[DAV1D_PIXEL_LAYOUT_I444] = { AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12 },
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};
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static const enum AVPixelFormat pix_fmt_rgb[3] = {
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AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12,
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};
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static void libdav1d_log_callback(void *opaque, const char *fmt, va_list vl)
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{
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AVCodecContext *c = opaque;
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av_vlog(c, AV_LOG_ERROR, fmt, vl);
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}
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static int libdav1d_picture_allocator(Dav1dPicture *p, void *cookie)
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{
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Libdav1dContext *dav1d = cookie;
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enum AVPixelFormat format = pix_fmt[p->p.layout][p->seq_hdr->hbd];
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int ret, linesize[4], h = FFALIGN(p->p.h, 128);
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uint8_t *aligned_ptr, *data[4];
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AVBufferRef *buf;
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ret = av_image_fill_arrays(data, linesize, NULL, format, FFALIGN(p->p.w, 128),
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h, DAV1D_PICTURE_ALIGNMENT);
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if (ret < 0)
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return ret;
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if (ret != dav1d->pool_size) {
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av_buffer_pool_uninit(&dav1d->pool);
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// Use twice the amount of required padding bytes for aligned_ptr below.
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dav1d->pool = av_buffer_pool_init(ret + DAV1D_PICTURE_ALIGNMENT * 2, NULL);
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if (!dav1d->pool) {
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dav1d->pool_size = 0;
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return AVERROR(ENOMEM);
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}
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dav1d->pool_size = ret;
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}
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buf = av_buffer_pool_get(dav1d->pool);
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if (!buf)
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return AVERROR(ENOMEM);
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// libdav1d requires DAV1D_PICTURE_ALIGNMENT aligned buffers, which av_malloc()
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// doesn't guarantee for example when AVX is disabled at configure time.
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// Use the extra DAV1D_PICTURE_ALIGNMENT padding bytes in the buffer to align it
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// if required.
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aligned_ptr = (uint8_t *)FFALIGN((uintptr_t)buf->data, DAV1D_PICTURE_ALIGNMENT);
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ret = av_image_fill_pointers(data, format, h, aligned_ptr, linesize);
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if (ret < 0) {
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av_buffer_unref(&buf);
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return ret;
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}
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p->data[0] = data[0];
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p->data[1] = data[1];
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p->data[2] = data[2];
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p->stride[0] = linesize[0];
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p->stride[1] = linesize[1];
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p->allocator_data = buf;
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return 0;
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}
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static void libdav1d_picture_release(Dav1dPicture *p, void *cookie)
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{
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AVBufferRef *buf = p->allocator_data;
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av_buffer_unref(&buf);
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}
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static av_cold int libdav1d_init(AVCodecContext *c)
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{
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Libdav1dContext *dav1d = c->priv_data;
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Dav1dSettings s;
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int threads = (c->thread_count ? c->thread_count : av_cpu_count()) * 3 / 2;
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int res;
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av_log(c, AV_LOG_INFO, "libdav1d %s\n", dav1d_version());
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dav1d_default_settings(&s);
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s.logger.cookie = c;
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s.logger.callback = libdav1d_log_callback;
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s.allocator.cookie = dav1d;
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s.allocator.alloc_picture_callback = libdav1d_picture_allocator;
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s.allocator.release_picture_callback = libdav1d_picture_release;
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s.frame_size_limit = c->max_pixels;
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if (dav1d->apply_grain >= 0)
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s.apply_grain = dav1d->apply_grain;
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s.all_layers = dav1d->all_layers;
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if (dav1d->operating_point >= 0)
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s.operating_point = dav1d->operating_point;
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s.n_tile_threads = dav1d->tile_threads
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? dav1d->tile_threads
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: FFMIN(floor(sqrt(threads)), DAV1D_MAX_TILE_THREADS);
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s.n_frame_threads = dav1d->frame_threads
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? dav1d->frame_threads
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: FFMIN(ceil(threads / s.n_tile_threads), DAV1D_MAX_FRAME_THREADS);
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av_log(c, AV_LOG_DEBUG, "Using %d frame threads, %d tile threads\n",
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s.n_frame_threads, s.n_tile_threads);
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res = dav1d_open(&dav1d->c, &s);
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if (res < 0)
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return AVERROR(ENOMEM);
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return 0;
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}
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static void libdav1d_flush(AVCodecContext *c)
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{
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Libdav1dContext *dav1d = c->priv_data;
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dav1d_data_unref(&dav1d->data);
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dav1d_flush(dav1d->c);
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}
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static void libdav1d_data_free(const uint8_t *data, void *opaque) {
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AVBufferRef *buf = opaque;
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av_buffer_unref(&buf);
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}
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static void libdav1d_user_data_free(const uint8_t *data, void *opaque) {
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av_assert0(data == opaque);
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av_free(opaque);
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}
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static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
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{
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Libdav1dContext *dav1d = c->priv_data;
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Dav1dData *data = &dav1d->data;
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Dav1dPicture pic = { 0 }, *p = &pic;
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int res;
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if (!data->sz) {
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AVPacket pkt = { 0 };
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res = ff_decode_get_packet(c, &pkt);
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if (res < 0 && res != AVERROR_EOF)
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return res;
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if (pkt.size) {
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res = dav1d_data_wrap(data, pkt.data, pkt.size, libdav1d_data_free, pkt.buf);
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if (res < 0) {
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av_packet_unref(&pkt);
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return res;
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}
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data->m.timestamp = pkt.pts;
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data->m.offset = pkt.pos;
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data->m.duration = pkt.duration;
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pkt.buf = NULL;
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av_packet_unref(&pkt);
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if (c->reordered_opaque != AV_NOPTS_VALUE) {
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uint8_t *reordered_opaque = av_malloc(sizeof(c->reordered_opaque));
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if (!reordered_opaque) {
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dav1d_data_unref(data);
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return AVERROR(ENOMEM);
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}
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memcpy(reordered_opaque, &c->reordered_opaque, sizeof(c->reordered_opaque));
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res = dav1d_data_wrap_user_data(data, reordered_opaque,
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libdav1d_user_data_free, reordered_opaque);
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if (res < 0) {
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av_free(reordered_opaque);
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dav1d_data_unref(data);
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return res;
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}
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}
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}
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}
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res = dav1d_send_data(dav1d->c, data);
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if (res < 0) {
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if (res == AVERROR(EINVAL))
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res = AVERROR_INVALIDDATA;
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if (res != AVERROR(EAGAIN))
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return res;
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}
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res = dav1d_get_picture(dav1d->c, p);
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if (res < 0) {
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if (res == AVERROR(EINVAL))
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res = AVERROR_INVALIDDATA;
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else if (res == AVERROR(EAGAIN) && c->internal->draining)
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res = AVERROR_EOF;
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return res;
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}
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av_assert0(p->data[0] && p->allocator_data);
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// This requires the custom allocator above
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frame->buf[0] = av_buffer_ref(p->allocator_data);
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if (!frame->buf[0]) {
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dav1d_picture_unref(p);
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return AVERROR(ENOMEM);
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}
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frame->data[0] = p->data[0];
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frame->data[1] = p->data[1];
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frame->data[2] = p->data[2];
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frame->linesize[0] = p->stride[0];
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frame->linesize[1] = p->stride[1];
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frame->linesize[2] = p->stride[1];
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c->profile = p->seq_hdr->profile;
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c->level = ((p->seq_hdr->operating_points[0].major_level - 2) << 2)
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| p->seq_hdr->operating_points[0].minor_level;
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frame->width = p->p.w;
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frame->height = p->p.h;
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if (c->width != p->p.w || c->height != p->p.h) {
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res = ff_set_dimensions(c, p->p.w, p->p.h);
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if (res < 0)
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goto fail;
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}
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av_reduce(&frame->sample_aspect_ratio.num,
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&frame->sample_aspect_ratio.den,
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frame->height * (int64_t)p->frame_hdr->render_width,
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frame->width * (int64_t)p->frame_hdr->render_height,
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INT_MAX);
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switch (p->seq_hdr->chr) {
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case DAV1D_CHR_VERTICAL:
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frame->chroma_location = c->chroma_sample_location = AVCHROMA_LOC_LEFT;
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break;
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case DAV1D_CHR_COLOCATED:
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frame->chroma_location = c->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
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break;
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}
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frame->colorspace = c->colorspace = (enum AVColorSpace) p->seq_hdr->mtrx;
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frame->color_primaries = c->color_primaries = (enum AVColorPrimaries) p->seq_hdr->pri;
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frame->color_trc = c->color_trc = (enum AVColorTransferCharacteristic) p->seq_hdr->trc;
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frame->color_range = c->color_range = p->seq_hdr->color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
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if (p->p.layout == DAV1D_PIXEL_LAYOUT_I444 &&
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p->seq_hdr->mtrx == DAV1D_MC_IDENTITY &&
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p->seq_hdr->pri == DAV1D_COLOR_PRI_BT709 &&
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p->seq_hdr->trc == DAV1D_TRC_SRGB)
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frame->format = c->pix_fmt = pix_fmt_rgb[p->seq_hdr->hbd];
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else
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frame->format = c->pix_fmt = pix_fmt[p->p.layout][p->seq_hdr->hbd];
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if (p->m.user_data.data)
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memcpy(&frame->reordered_opaque, p->m.user_data.data, sizeof(frame->reordered_opaque));
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else
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frame->reordered_opaque = AV_NOPTS_VALUE;
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if (p->seq_hdr->num_units_in_tick && p->seq_hdr->time_scale) {
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av_reduce(&c->framerate.den, &c->framerate.num,
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p->seq_hdr->num_units_in_tick, p->seq_hdr->time_scale, INT_MAX);
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if (p->seq_hdr->equal_picture_interval)
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c->ticks_per_frame = p->seq_hdr->num_ticks_per_picture;
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}
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// match timestamps and packet size
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frame->pts = frame->best_effort_timestamp = p->m.timestamp;
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#if FF_API_PKT_PTS
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FF_DISABLE_DEPRECATION_WARNINGS
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frame->pkt_pts = p->m.timestamp;
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FF_ENABLE_DEPRECATION_WARNINGS
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#endif
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frame->pkt_dts = p->m.timestamp;
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frame->pkt_pos = p->m.offset;
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frame->pkt_size = p->m.size;
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frame->pkt_duration = p->m.duration;
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frame->key_frame = p->frame_hdr->frame_type == DAV1D_FRAME_TYPE_KEY;
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switch (p->frame_hdr->frame_type) {
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case DAV1D_FRAME_TYPE_KEY:
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case DAV1D_FRAME_TYPE_INTRA:
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frame->pict_type = AV_PICTURE_TYPE_I;
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break;
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case DAV1D_FRAME_TYPE_INTER:
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frame->pict_type = AV_PICTURE_TYPE_P;
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break;
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case DAV1D_FRAME_TYPE_SWITCH:
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frame->pict_type = AV_PICTURE_TYPE_SP;
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break;
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default:
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res = AVERROR_INVALIDDATA;
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goto fail;
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}
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if (p->mastering_display) {
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AVMasteringDisplayMetadata *mastering = av_mastering_display_metadata_create_side_data(frame);
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if (!mastering) {
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res = AVERROR(ENOMEM);
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goto fail;
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}
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for (int i = 0; i < 3; i++) {
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mastering->display_primaries[i][0] = av_make_q(p->mastering_display->primaries[i][0], 1 << 16);
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mastering->display_primaries[i][1] = av_make_q(p->mastering_display->primaries[i][1], 1 << 16);
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}
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mastering->white_point[0] = av_make_q(p->mastering_display->white_point[0], 1 << 16);
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mastering->white_point[1] = av_make_q(p->mastering_display->white_point[1], 1 << 16);
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mastering->max_luminance = av_make_q(p->mastering_display->max_luminance, 1 << 8);
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mastering->min_luminance = av_make_q(p->mastering_display->min_luminance, 1 << 14);
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mastering->has_primaries = 1;
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mastering->has_luminance = 1;
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}
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if (p->content_light) {
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AVContentLightMetadata *light = av_content_light_metadata_create_side_data(frame);
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if (!light) {
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res = AVERROR(ENOMEM);
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goto fail;
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}
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light->MaxCLL = p->content_light->max_content_light_level;
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light->MaxFALL = p->content_light->max_frame_average_light_level;
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}
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res = 0;
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fail:
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dav1d_picture_unref(p);
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if (res < 0)
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av_frame_unref(frame);
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return res;
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}
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static av_cold int libdav1d_close(AVCodecContext *c)
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{
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Libdav1dContext *dav1d = c->priv_data;
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av_buffer_pool_uninit(&dav1d->pool);
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dav1d_data_unref(&dav1d->data);
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dav1d_close(&dav1d->c);
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return 0;
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}
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#define OFFSET(x) offsetof(Libdav1dContext, x)
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#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
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static const AVOption libdav1d_options[] = {
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{ "tilethreads", "Tile threads", OFFSET(tile_threads), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, DAV1D_MAX_TILE_THREADS, VD },
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{ "framethreads", "Frame threads", OFFSET(frame_threads), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, DAV1D_MAX_FRAME_THREADS, VD },
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{ "filmgrain", "Apply Film Grain", OFFSET(apply_grain), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VD },
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{ "oppoint", "Select an operating point of the scalable bitstream", OFFSET(operating_point), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 31, VD },
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{ "alllayers", "Output all spatial layers", OFFSET(all_layers), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
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{ NULL }
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};
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static const AVClass libdav1d_class = {
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.class_name = "libdav1d decoder",
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.item_name = av_default_item_name,
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.option = libdav1d_options,
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.version = LIBAVUTIL_VERSION_INT,
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};
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AVCodec ff_libdav1d_decoder = {
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.name = "libdav1d",
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.long_name = NULL_IF_CONFIG_SMALL("dav1d AV1 decoder by VideoLAN"),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_AV1,
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.priv_data_size = sizeof(Libdav1dContext),
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.init = libdav1d_init,
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.close = libdav1d_close,
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.flush = libdav1d_flush,
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.receive_frame = libdav1d_receive_frame,
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.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
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.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_SETS_PKT_DTS,
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.priv_class = &libdav1d_class,
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.wrapper_name = "libdav1d",
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};
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