2 * Copyright (c) 2018 Ronald S. Bultje <rsbultje gmail com>
3 * Copyright (c) 2018 James Almer <jamrial gmail com>
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include <dav1d/dav1d.h>
24 #include "libavutil/avassert.h"
25 #include "libavutil/opt.h"
31 typedef struct Libdav1dContext {
39 static av_cold int libdav1d_init(AVCodecContext *c)
41 Libdav1dContext *dav1d = c->priv_data;
45 av_log(c, AV_LOG_INFO, "libdav1d %s\n", dav1d_version());
47 dav1d_default_settings(&s);
48 s.n_tile_threads = dav1d->tile_threads;
49 s.n_frame_threads = FFMIN(c->thread_count ? c->thread_count : av_cpu_count(), DAV1D_MAX_FRAME_THREADS);
51 res = dav1d_open(&dav1d->c, &s);
53 return AVERROR(ENOMEM);
58 static void libdav1d_flush(AVCodecContext *c)
60 Libdav1dContext *dav1d = c->priv_data;
62 dav1d_data_unref(&dav1d->data);
63 dav1d_flush(dav1d->c);
66 static void libdav1d_data_free(const uint8_t *data, void *opaque) {
67 AVBufferRef *buf = opaque;
69 av_buffer_unref(&buf);
72 static void libdav1d_frame_free(void *opaque, uint8_t *data) {
73 Dav1dPicture p = { 0 };
76 p.data[0] = (void *) 0x1; // this has to be non-NULL
77 dav1d_picture_unref(&p);
80 static const enum AVPixelFormat pix_fmt[][2] = {
81 [DAV1D_PIXEL_LAYOUT_I400] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10 },
82 [DAV1D_PIXEL_LAYOUT_I420] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P10 },
83 [DAV1D_PIXEL_LAYOUT_I422] = { AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P10 },
84 [DAV1D_PIXEL_LAYOUT_I444] = { AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10 },
87 static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
89 Libdav1dContext *dav1d = c->priv_data;
90 Dav1dData *data = &dav1d->data;
91 Dav1dPicture p = { 0 };
97 res = ff_decode_get_packet(c, &pkt);
98 if (res < 0 && res != AVERROR_EOF)
102 res = dav1d_data_wrap(data, pkt.data, pkt.size, libdav1d_data_free, pkt.buf);
104 av_packet_unref(&pkt);
108 data->m.timestamp = pkt.pts;
109 data->m.offset = pkt.pos;
110 data->m.duration = pkt.duration;
113 av_packet_unref(&pkt);
117 res = dav1d_send_data(dav1d->c, data);
120 res = AVERROR_INVALIDDATA;
125 res = dav1d_get_picture(dav1d->c, &p);
128 res = AVERROR_INVALIDDATA;
129 else if (res == -EAGAIN && c->internal->draining)
135 av_assert0(p.data[0] != NULL);
137 frame->buf[0] = av_buffer_create(NULL, 0, libdav1d_frame_free,
138 p.ref, AV_BUFFER_FLAG_READONLY);
139 if (!frame->buf[0]) {
140 dav1d_picture_unref(&p);
141 return AVERROR(ENOMEM);
144 frame->data[0] = p.data[0];
145 frame->data[1] = p.data[1];
146 frame->data[2] = p.data[2];
147 frame->linesize[0] = p.stride[0];
148 frame->linesize[1] = p.stride[1];
149 frame->linesize[2] = p.stride[1];
151 c->profile = p.seq_hdr->profile;
152 frame->format = c->pix_fmt = pix_fmt[p.p.layout][p.p.bpc == 10];
153 frame->width = p.p.w;
154 frame->height = p.p.h;
155 if (c->width != p.p.w || c->height != p.p.h) {
156 res = ff_set_dimensions(c, p.p.w, p.p.h);
161 switch (p.seq_hdr->chr) {
162 case DAV1D_CHR_VERTICAL:
163 frame->chroma_location = c->chroma_sample_location = AVCHROMA_LOC_LEFT;
165 case DAV1D_CHR_COLOCATED:
166 frame->chroma_location = c->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
169 frame->colorspace = c->colorspace = (enum AVColorSpace) p.seq_hdr->mtrx;
170 frame->color_primaries = c->color_primaries = (enum AVColorPrimaries) p.seq_hdr->pri;
171 frame->color_trc = c->color_trc = (enum AVColorTransferCharacteristic) p.seq_hdr->trc;
172 frame->color_range = c->color_range = p.seq_hdr->color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
174 // match timestamps and packet size
175 frame->pts = frame->best_effort_timestamp = p.m.timestamp;
177 FF_DISABLE_DEPRECATION_WARNINGS
178 frame->pkt_pts = p.m.timestamp;
179 FF_ENABLE_DEPRECATION_WARNINGS
181 frame->pkt_dts = p.m.timestamp;
182 frame->pkt_pos = p.m.offset;
183 frame->pkt_size = p.m.size;
184 frame->pkt_duration = p.m.duration;
185 frame->key_frame = p.frame_hdr->frame_type == DAV1D_FRAME_TYPE_KEY;
187 switch (p.frame_hdr->frame_type) {
188 case DAV1D_FRAME_TYPE_KEY:
189 case DAV1D_FRAME_TYPE_INTRA:
190 frame->pict_type = AV_PICTURE_TYPE_I;
192 case DAV1D_FRAME_TYPE_INTER:
193 frame->pict_type = AV_PICTURE_TYPE_P;
195 case DAV1D_FRAME_TYPE_SWITCH:
196 frame->pict_type = AV_PICTURE_TYPE_SP;
199 return AVERROR_INVALIDDATA;
205 static av_cold int libdav1d_close(AVCodecContext *c)
207 Libdav1dContext *dav1d = c->priv_data;
209 dav1d_data_unref(&dav1d->data);
210 dav1d_close(&dav1d->c);
215 #define OFFSET(x) offsetof(Libdav1dContext, x)
216 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
217 static const AVOption libdav1d_options[] = {
218 { "tilethreads", "Tile threads", OFFSET(tile_threads), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, DAV1D_MAX_TILE_THREADS, VD },
222 static const AVClass libdav1d_class = {
223 .class_name = "libdav1d decoder",
224 .item_name = av_default_item_name,
225 .option = libdav1d_options,
226 .version = LIBAVUTIL_VERSION_INT,
229 AVCodec ff_libdav1d_decoder = {
231 .long_name = NULL_IF_CONFIG_SMALL("dav1d AV1 decoder by VideoLAN"),
232 .type = AVMEDIA_TYPE_VIDEO,
233 .id = AV_CODEC_ID_AV1,
234 .priv_data_size = sizeof(Libdav1dContext),
235 .init = libdav1d_init,
236 .close = libdav1d_close,
237 .flush = libdav1d_flush,
238 .receive_frame = libdav1d_receive_frame,
239 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
240 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_SETS_PKT_DTS,
241 .priv_class = &libdav1d_class,
242 .wrapper_name = "libdav1d",