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 {
40 static av_cold int libdav1d_init(AVCodecContext *c)
42 Libdav1dContext *dav1d = c->priv_data;
46 av_log(c, AV_LOG_INFO, "libdav1d %s\n", dav1d_version());
48 dav1d_default_settings(&s);
49 s.n_tile_threads = dav1d->tile_threads;
50 s.apply_grain = dav1d->apply_grain;
51 s.n_frame_threads = FFMIN(c->thread_count ? c->thread_count : av_cpu_count(), DAV1D_MAX_FRAME_THREADS);
53 res = dav1d_open(&dav1d->c, &s);
55 return AVERROR(ENOMEM);
60 static void libdav1d_flush(AVCodecContext *c)
62 Libdav1dContext *dav1d = c->priv_data;
64 dav1d_data_unref(&dav1d->data);
65 dav1d_flush(dav1d->c);
68 static void libdav1d_data_free(const uint8_t *data, void *opaque) {
69 AVBufferRef *buf = opaque;
71 av_buffer_unref(&buf);
74 static void libdav1d_frame_free(void *opaque, uint8_t *data) {
75 Dav1dPicture *p = opaque;
77 dav1d_picture_unref(p);
81 static const enum AVPixelFormat pix_fmt[][3] = {
82 [DAV1D_PIXEL_LAYOUT_I400] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12 },
83 [DAV1D_PIXEL_LAYOUT_I420] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12 },
84 [DAV1D_PIXEL_LAYOUT_I422] = { AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12 },
85 [DAV1D_PIXEL_LAYOUT_I444] = { AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12 },
88 static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
90 Libdav1dContext *dav1d = c->priv_data;
91 Dav1dData *data = &dav1d->data;
98 res = ff_decode_get_packet(c, &pkt);
99 if (res < 0 && res != AVERROR_EOF)
103 res = dav1d_data_wrap(data, pkt.data, pkt.size, libdav1d_data_free, pkt.buf);
105 av_packet_unref(&pkt);
109 data->m.timestamp = pkt.pts;
110 data->m.offset = pkt.pos;
111 data->m.duration = pkt.duration;
114 av_packet_unref(&pkt);
118 res = dav1d_send_data(dav1d->c, data);
121 res = AVERROR_INVALIDDATA;
126 p = av_mallocz(sizeof(*p));
128 return AVERROR(ENOMEM);
130 res = dav1d_get_picture(dav1d->c, p);
133 res = AVERROR_INVALIDDATA;
134 else if (res == -EAGAIN && c->internal->draining)
141 av_assert0(p->data[0] != NULL);
143 frame->buf[0] = av_buffer_create(NULL, 0, libdav1d_frame_free,
144 p, AV_BUFFER_FLAG_READONLY);
145 if (!frame->buf[0]) {
146 dav1d_picture_unref(p);
148 return AVERROR(ENOMEM);
151 frame->data[0] = p->data[0];
152 frame->data[1] = p->data[1];
153 frame->data[2] = p->data[2];
154 frame->linesize[0] = p->stride[0];
155 frame->linesize[1] = p->stride[1];
156 frame->linesize[2] = p->stride[1];
158 c->profile = p->seq_hdr->profile;
159 frame->format = c->pix_fmt = pix_fmt[p->p.layout][p->seq_hdr->hbd];
160 frame->width = p->p.w;
161 frame->height = p->p.h;
162 if (c->width != p->p.w || c->height != p->p.h) {
163 res = ff_set_dimensions(c, p->p.w, p->p.h);
168 switch (p->seq_hdr->chr) {
169 case DAV1D_CHR_VERTICAL:
170 frame->chroma_location = c->chroma_sample_location = AVCHROMA_LOC_LEFT;
172 case DAV1D_CHR_COLOCATED:
173 frame->chroma_location = c->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
176 frame->colorspace = c->colorspace = (enum AVColorSpace) p->seq_hdr->mtrx;
177 frame->color_primaries = c->color_primaries = (enum AVColorPrimaries) p->seq_hdr->pri;
178 frame->color_trc = c->color_trc = (enum AVColorTransferCharacteristic) p->seq_hdr->trc;
179 frame->color_range = c->color_range = p->seq_hdr->color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
181 // match timestamps and packet size
182 frame->pts = frame->best_effort_timestamp = p->m.timestamp;
184 FF_DISABLE_DEPRECATION_WARNINGS
185 frame->pkt_pts = p->m.timestamp;
186 FF_ENABLE_DEPRECATION_WARNINGS
188 frame->pkt_dts = p->m.timestamp;
189 frame->pkt_pos = p->m.offset;
190 frame->pkt_size = p->m.size;
191 frame->pkt_duration = p->m.duration;
192 frame->key_frame = p->frame_hdr->frame_type == DAV1D_FRAME_TYPE_KEY;
194 switch (p->frame_hdr->frame_type) {
195 case DAV1D_FRAME_TYPE_KEY:
196 case DAV1D_FRAME_TYPE_INTRA:
197 frame->pict_type = AV_PICTURE_TYPE_I;
199 case DAV1D_FRAME_TYPE_INTER:
200 frame->pict_type = AV_PICTURE_TYPE_P;
202 case DAV1D_FRAME_TYPE_SWITCH:
203 frame->pict_type = AV_PICTURE_TYPE_SP;
206 return AVERROR_INVALIDDATA;
212 static av_cold int libdav1d_close(AVCodecContext *c)
214 Libdav1dContext *dav1d = c->priv_data;
216 dav1d_data_unref(&dav1d->data);
217 dav1d_close(&dav1d->c);
222 #define OFFSET(x) offsetof(Libdav1dContext, x)
223 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
224 static const AVOption libdav1d_options[] = {
225 { "tilethreads", "Tile threads", OFFSET(tile_threads), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, DAV1D_MAX_TILE_THREADS, VD },
226 { "filmgrain", "Apply Film Grain", OFFSET(apply_grain), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VD },
230 static const AVClass libdav1d_class = {
231 .class_name = "libdav1d decoder",
232 .item_name = av_default_item_name,
233 .option = libdav1d_options,
234 .version = LIBAVUTIL_VERSION_INT,
237 AVCodec ff_libdav1d_decoder = {
239 .long_name = NULL_IF_CONFIG_SMALL("dav1d AV1 decoder by VideoLAN"),
240 .type = AVMEDIA_TYPE_VIDEO,
241 .id = AV_CODEC_ID_AV1,
242 .priv_data_size = sizeof(Libdav1dContext),
243 .init = libdav1d_init,
244 .close = libdav1d_close,
245 .flush = libdav1d_flush,
246 .receive_frame = libdav1d_receive_frame,
247 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
248 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_SETS_PKT_DTS,
249 .priv_class = &libdav1d_class,
250 .wrapper_name = "libdav1d",