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/mastering_display_metadata.h"
26 #include "libavutil/imgutils.h"
27 #include "libavutil/opt.h"
33 typedef struct Libdav1dContext {
44 static const enum AVPixelFormat pix_fmt[][3] = {
45 [DAV1D_PIXEL_LAYOUT_I400] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12 },
46 [DAV1D_PIXEL_LAYOUT_I420] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12 },
47 [DAV1D_PIXEL_LAYOUT_I422] = { AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12 },
48 [DAV1D_PIXEL_LAYOUT_I444] = { AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12 },
51 static void libdav1d_log_callback(void *opaque, const char *fmt, va_list vl)
53 AVCodecContext *c = opaque;
55 av_vlog(c, AV_LOG_ERROR, fmt, vl);
58 static int libdav1d_picture_allocator(Dav1dPicture *p, void *cookie)
60 Libdav1dContext *dav1d = cookie;
61 enum AVPixelFormat format = pix_fmt[p->p.layout][p->seq_hdr->hbd];
62 int ret, linesize[4], h = FFALIGN(p->p.h, 128);
63 uint8_t *aligned_ptr, *data[4];
66 ret = av_image_fill_arrays(data, linesize, NULL, format, FFALIGN(p->p.w, 128),
67 h, DAV1D_PICTURE_ALIGNMENT);
71 if (ret != dav1d->pool_size) {
72 av_buffer_pool_uninit(&dav1d->pool);
73 // Use twice the amount of required padding bytes for aligned_ptr below.
74 dav1d->pool = av_buffer_pool_init(ret + DAV1D_PICTURE_ALIGNMENT * 2, NULL);
76 return AVERROR(ENOMEM);
77 dav1d->pool_size = ret;
79 buf = av_buffer_pool_get(dav1d->pool);
81 return AVERROR(ENOMEM);
83 // libdav1d requires DAV1D_PICTURE_ALIGNMENT aligned buffers, which av_malloc()
84 // doesn't guarantee for example when AVX is disabled at configure time.
85 // Use the extra DAV1D_PICTURE_ALIGNMENT padding bytes in the buffer to align it
87 aligned_ptr = (uint8_t *)FFALIGN((uintptr_t)buf->data, DAV1D_PICTURE_ALIGNMENT);
88 ret = av_image_fill_pointers(data, format, h, aligned_ptr, linesize);
90 av_buffer_unref(&buf);
97 p->stride[0] = linesize[0];
98 p->stride[1] = linesize[1];
99 p->allocator_data = buf;
104 static void libdav1d_picture_release(Dav1dPicture *p, void *cookie)
106 AVBufferRef *buf = p->allocator_data;
108 av_buffer_unref(&buf);
111 static av_cold int libdav1d_init(AVCodecContext *c)
113 Libdav1dContext *dav1d = c->priv_data;
117 av_log(c, AV_LOG_INFO, "libdav1d %s\n", dav1d_version());
119 dav1d_default_settings(&s);
121 s.logger.callback = libdav1d_log_callback;
122 s.allocator.cookie = dav1d;
123 s.allocator.alloc_picture_callback = libdav1d_picture_allocator;
124 s.allocator.release_picture_callback = libdav1d_picture_release;
125 s.n_tile_threads = dav1d->tile_threads;
126 s.apply_grain = dav1d->apply_grain;
127 s.n_frame_threads = FFMIN(c->thread_count ? c->thread_count : av_cpu_count(), DAV1D_MAX_FRAME_THREADS);
129 res = dav1d_open(&dav1d->c, &s);
131 return AVERROR(ENOMEM);
136 static void libdav1d_flush(AVCodecContext *c)
138 Libdav1dContext *dav1d = c->priv_data;
140 dav1d_data_unref(&dav1d->data);
141 dav1d_flush(dav1d->c);
144 static void libdav1d_data_free(const uint8_t *data, void *opaque) {
145 AVBufferRef *buf = opaque;
147 av_buffer_unref(&buf);
150 static void libdav1d_frame_free(void *opaque, uint8_t *data) {
151 Dav1dPicture *p = opaque;
153 dav1d_picture_unref(p);
157 static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
159 Libdav1dContext *dav1d = c->priv_data;
160 Dav1dData *data = &dav1d->data;
165 AVPacket pkt = { 0 };
167 res = ff_decode_get_packet(c, &pkt);
168 if (res < 0 && res != AVERROR_EOF)
172 res = dav1d_data_wrap(data, pkt.data, pkt.size, libdav1d_data_free, pkt.buf);
174 av_packet_unref(&pkt);
178 data->m.timestamp = pkt.pts;
179 data->m.offset = pkt.pos;
180 data->m.duration = pkt.duration;
183 av_packet_unref(&pkt);
187 res = dav1d_send_data(dav1d->c, data);
189 if (res == AVERROR(EINVAL))
190 res = AVERROR_INVALIDDATA;
191 if (res != AVERROR(EAGAIN))
195 p = av_mallocz(sizeof(*p));
197 return AVERROR(ENOMEM);
199 res = dav1d_get_picture(dav1d->c, p);
201 if (res == AVERROR(EINVAL))
202 res = AVERROR_INVALIDDATA;
203 else if (res == AVERROR(EAGAIN) && c->internal->draining)
210 av_assert0(p->data[0] != NULL);
212 frame->buf[0] = av_buffer_create(NULL, 0, libdav1d_frame_free,
213 p, AV_BUFFER_FLAG_READONLY);
214 if (!frame->buf[0]) {
215 dav1d_picture_unref(p);
217 return AVERROR(ENOMEM);
220 frame->data[0] = p->data[0];
221 frame->data[1] = p->data[1];
222 frame->data[2] = p->data[2];
223 frame->linesize[0] = p->stride[0];
224 frame->linesize[1] = p->stride[1];
225 frame->linesize[2] = p->stride[1];
227 c->profile = p->seq_hdr->profile;
228 frame->format = c->pix_fmt = pix_fmt[p->p.layout][p->seq_hdr->hbd];
229 frame->width = p->p.w;
230 frame->height = p->p.h;
231 if (c->width != p->p.w || c->height != p->p.h) {
232 res = ff_set_dimensions(c, p->p.w, p->p.h);
237 switch (p->seq_hdr->chr) {
238 case DAV1D_CHR_VERTICAL:
239 frame->chroma_location = c->chroma_sample_location = AVCHROMA_LOC_LEFT;
241 case DAV1D_CHR_COLOCATED:
242 frame->chroma_location = c->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
245 frame->colorspace = c->colorspace = (enum AVColorSpace) p->seq_hdr->mtrx;
246 frame->color_primaries = c->color_primaries = (enum AVColorPrimaries) p->seq_hdr->pri;
247 frame->color_trc = c->color_trc = (enum AVColorTransferCharacteristic) p->seq_hdr->trc;
248 frame->color_range = c->color_range = p->seq_hdr->color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
250 // match timestamps and packet size
251 frame->pts = frame->best_effort_timestamp = p->m.timestamp;
253 FF_DISABLE_DEPRECATION_WARNINGS
254 frame->pkt_pts = p->m.timestamp;
255 FF_ENABLE_DEPRECATION_WARNINGS
257 frame->pkt_dts = p->m.timestamp;
258 frame->pkt_pos = p->m.offset;
259 frame->pkt_size = p->m.size;
260 frame->pkt_duration = p->m.duration;
261 frame->key_frame = p->frame_hdr->frame_type == DAV1D_FRAME_TYPE_KEY;
263 switch (p->frame_hdr->frame_type) {
264 case DAV1D_FRAME_TYPE_KEY:
265 case DAV1D_FRAME_TYPE_INTRA:
266 frame->pict_type = AV_PICTURE_TYPE_I;
268 case DAV1D_FRAME_TYPE_INTER:
269 frame->pict_type = AV_PICTURE_TYPE_P;
271 case DAV1D_FRAME_TYPE_SWITCH:
272 frame->pict_type = AV_PICTURE_TYPE_SP;
275 res = AVERROR_INVALIDDATA;
279 if (p->mastering_display) {
280 AVMasteringDisplayMetadata *mastering = av_mastering_display_metadata_create_side_data(frame);
282 res = AVERROR(ENOMEM);
286 for (int i = 0; i < 3; i++) {
287 mastering->display_primaries[i][0] = av_make_q(p->mastering_display->primaries[i][0], 1 << 16);
288 mastering->display_primaries[i][1] = av_make_q(p->mastering_display->primaries[i][1], 1 << 16);
290 mastering->white_point[0] = av_make_q(p->mastering_display->white_point[0], 1 << 16);
291 mastering->white_point[1] = av_make_q(p->mastering_display->white_point[1], 1 << 16);
293 mastering->max_luminance = av_make_q(p->mastering_display->max_luminance, 1 << 8);
294 mastering->min_luminance = av_make_q(p->mastering_display->min_luminance, 1 << 14);
296 mastering->has_primaries = 1;
297 mastering->has_luminance = 1;
299 if (p->content_light) {
300 AVContentLightMetadata *light = av_content_light_metadata_create_side_data(frame);
302 res = AVERROR(ENOMEM);
305 light->MaxCLL = p->content_light->max_content_light_level;
306 light->MaxFALL = p->content_light->max_frame_average_light_level;
312 av_frame_unref(frame);
316 static av_cold int libdav1d_close(AVCodecContext *c)
318 Libdav1dContext *dav1d = c->priv_data;
320 av_buffer_pool_uninit(&dav1d->pool);
321 dav1d_data_unref(&dav1d->data);
322 dav1d_close(&dav1d->c);
327 #define OFFSET(x) offsetof(Libdav1dContext, x)
328 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
329 static const AVOption libdav1d_options[] = {
330 { "tilethreads", "Tile threads", OFFSET(tile_threads), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, DAV1D_MAX_TILE_THREADS, VD },
331 { "filmgrain", "Apply Film Grain", OFFSET(apply_grain), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VD },
335 static const AVClass libdav1d_class = {
336 .class_name = "libdav1d decoder",
337 .item_name = av_default_item_name,
338 .option = libdav1d_options,
339 .version = LIBAVUTIL_VERSION_INT,
342 AVCodec ff_libdav1d_decoder = {
344 .long_name = NULL_IF_CONFIG_SMALL("dav1d AV1 decoder by VideoLAN"),
345 .type = AVMEDIA_TYPE_VIDEO,
346 .id = AV_CODEC_ID_AV1,
347 .priv_data_size = sizeof(Libdav1dContext),
348 .init = libdav1d_init,
349 .close = libdav1d_close,
350 .flush = libdav1d_flush,
351 .receive_frame = libdav1d_receive_frame,
352 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
353 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_SETS_PKT_DTS,
354 .priv_class = &libdav1d_class,
355 .wrapper_name = "libdav1d",