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);
77 return AVERROR(ENOMEM);
79 dav1d->pool_size = ret;
81 buf = av_buffer_pool_get(dav1d->pool);
83 return AVERROR(ENOMEM);
85 // libdav1d requires DAV1D_PICTURE_ALIGNMENT aligned buffers, which av_malloc()
86 // doesn't guarantee for example when AVX is disabled at configure time.
87 // Use the extra DAV1D_PICTURE_ALIGNMENT padding bytes in the buffer to align it
89 aligned_ptr = (uint8_t *)FFALIGN((uintptr_t)buf->data, DAV1D_PICTURE_ALIGNMENT);
90 ret = av_image_fill_pointers(data, format, h, aligned_ptr, linesize);
92 av_buffer_unref(&buf);
99 p->stride[0] = linesize[0];
100 p->stride[1] = linesize[1];
101 p->allocator_data = buf;
106 static void libdav1d_picture_release(Dav1dPicture *p, void *cookie)
108 AVBufferRef *buf = p->allocator_data;
110 av_buffer_unref(&buf);
113 static av_cold int libdav1d_init(AVCodecContext *c)
115 Libdav1dContext *dav1d = c->priv_data;
119 av_log(c, AV_LOG_INFO, "libdav1d %s\n", dav1d_version());
121 dav1d_default_settings(&s);
123 s.logger.callback = libdav1d_log_callback;
124 s.allocator.cookie = dav1d;
125 s.allocator.alloc_picture_callback = libdav1d_picture_allocator;
126 s.allocator.release_picture_callback = libdav1d_picture_release;
127 s.n_tile_threads = dav1d->tile_threads;
128 s.apply_grain = dav1d->apply_grain;
129 s.n_frame_threads = FFMIN(c->thread_count ? c->thread_count : av_cpu_count(), DAV1D_MAX_FRAME_THREADS);
131 res = dav1d_open(&dav1d->c, &s);
133 return AVERROR(ENOMEM);
138 static void libdav1d_flush(AVCodecContext *c)
140 Libdav1dContext *dav1d = c->priv_data;
142 dav1d_data_unref(&dav1d->data);
143 dav1d_flush(dav1d->c);
146 static void libdav1d_data_free(const uint8_t *data, void *opaque) {
147 AVBufferRef *buf = opaque;
149 av_buffer_unref(&buf);
152 static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
154 Libdav1dContext *dav1d = c->priv_data;
155 Dav1dData *data = &dav1d->data;
156 Dav1dPicture pic = { 0 }, *p = &pic;
160 AVPacket pkt = { 0 };
162 res = ff_decode_get_packet(c, &pkt);
163 if (res < 0 && res != AVERROR_EOF)
167 res = dav1d_data_wrap(data, pkt.data, pkt.size, libdav1d_data_free, pkt.buf);
169 av_packet_unref(&pkt);
173 data->m.timestamp = pkt.pts;
174 data->m.offset = pkt.pos;
175 data->m.duration = pkt.duration;
178 av_packet_unref(&pkt);
182 res = dav1d_send_data(dav1d->c, data);
184 if (res == AVERROR(EINVAL))
185 res = AVERROR_INVALIDDATA;
186 if (res != AVERROR(EAGAIN))
190 res = dav1d_get_picture(dav1d->c, p);
192 if (res == AVERROR(EINVAL))
193 res = AVERROR_INVALIDDATA;
194 else if (res == AVERROR(EAGAIN) && c->internal->draining)
200 av_assert0(p->data[0] != NULL);
202 // This requires the custom allocator above
203 frame->buf[0] = av_buffer_ref(p->allocator_data);
204 if (!frame->buf[0]) {
205 dav1d_picture_unref(p);
206 return AVERROR(ENOMEM);
209 frame->data[0] = p->data[0];
210 frame->data[1] = p->data[1];
211 frame->data[2] = p->data[2];
212 frame->linesize[0] = p->stride[0];
213 frame->linesize[1] = p->stride[1];
214 frame->linesize[2] = p->stride[1];
216 c->profile = p->seq_hdr->profile;
217 frame->format = c->pix_fmt = pix_fmt[p->p.layout][p->seq_hdr->hbd];
218 frame->width = p->p.w;
219 frame->height = p->p.h;
220 if (c->width != p->p.w || c->height != p->p.h) {
221 res = ff_set_dimensions(c, p->p.w, p->p.h);
226 switch (p->seq_hdr->chr) {
227 case DAV1D_CHR_VERTICAL:
228 frame->chroma_location = c->chroma_sample_location = AVCHROMA_LOC_LEFT;
230 case DAV1D_CHR_COLOCATED:
231 frame->chroma_location = c->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
234 frame->colorspace = c->colorspace = (enum AVColorSpace) p->seq_hdr->mtrx;
235 frame->color_primaries = c->color_primaries = (enum AVColorPrimaries) p->seq_hdr->pri;
236 frame->color_trc = c->color_trc = (enum AVColorTransferCharacteristic) p->seq_hdr->trc;
237 frame->color_range = c->color_range = p->seq_hdr->color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
239 // match timestamps and packet size
240 frame->pts = frame->best_effort_timestamp = p->m.timestamp;
242 FF_DISABLE_DEPRECATION_WARNINGS
243 frame->pkt_pts = p->m.timestamp;
244 FF_ENABLE_DEPRECATION_WARNINGS
246 frame->pkt_dts = p->m.timestamp;
247 frame->pkt_pos = p->m.offset;
248 frame->pkt_size = p->m.size;
249 frame->pkt_duration = p->m.duration;
250 frame->key_frame = p->frame_hdr->frame_type == DAV1D_FRAME_TYPE_KEY;
252 switch (p->frame_hdr->frame_type) {
253 case DAV1D_FRAME_TYPE_KEY:
254 case DAV1D_FRAME_TYPE_INTRA:
255 frame->pict_type = AV_PICTURE_TYPE_I;
257 case DAV1D_FRAME_TYPE_INTER:
258 frame->pict_type = AV_PICTURE_TYPE_P;
260 case DAV1D_FRAME_TYPE_SWITCH:
261 frame->pict_type = AV_PICTURE_TYPE_SP;
264 res = AVERROR_INVALIDDATA;
268 if (p->mastering_display) {
269 AVMasteringDisplayMetadata *mastering = av_mastering_display_metadata_create_side_data(frame);
271 res = AVERROR(ENOMEM);
275 for (int i = 0; i < 3; i++) {
276 mastering->display_primaries[i][0] = av_make_q(p->mastering_display->primaries[i][0], 1 << 16);
277 mastering->display_primaries[i][1] = av_make_q(p->mastering_display->primaries[i][1], 1 << 16);
279 mastering->white_point[0] = av_make_q(p->mastering_display->white_point[0], 1 << 16);
280 mastering->white_point[1] = av_make_q(p->mastering_display->white_point[1], 1 << 16);
282 mastering->max_luminance = av_make_q(p->mastering_display->max_luminance, 1 << 8);
283 mastering->min_luminance = av_make_q(p->mastering_display->min_luminance, 1 << 14);
285 mastering->has_primaries = 1;
286 mastering->has_luminance = 1;
288 if (p->content_light) {
289 AVContentLightMetadata *light = av_content_light_metadata_create_side_data(frame);
291 res = AVERROR(ENOMEM);
294 light->MaxCLL = p->content_light->max_content_light_level;
295 light->MaxFALL = p->content_light->max_frame_average_light_level;
300 dav1d_picture_unref(p);
302 av_frame_unref(frame);
306 static av_cold int libdav1d_close(AVCodecContext *c)
308 Libdav1dContext *dav1d = c->priv_data;
310 av_buffer_pool_uninit(&dav1d->pool);
311 dav1d_data_unref(&dav1d->data);
312 dav1d_close(&dav1d->c);
317 #define OFFSET(x) offsetof(Libdav1dContext, x)
318 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
319 static const AVOption libdav1d_options[] = {
320 { "tilethreads", "Tile threads", OFFSET(tile_threads), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, DAV1D_MAX_TILE_THREADS, VD },
321 { "filmgrain", "Apply Film Grain", OFFSET(apply_grain), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VD },
325 static const AVClass libdav1d_class = {
326 .class_name = "libdav1d decoder",
327 .item_name = av_default_item_name,
328 .option = libdav1d_options,
329 .version = LIBAVUTIL_VERSION_INT,
332 AVCodec ff_libdav1d_decoder = {
334 .long_name = NULL_IF_CONFIG_SMALL("dav1d AV1 decoder by VideoLAN"),
335 .type = AVMEDIA_TYPE_VIDEO,
336 .id = AV_CODEC_ID_AV1,
337 .priv_data_size = sizeof(Libdav1dContext),
338 .init = libdav1d_init,
339 .close = libdav1d_close,
340 .flush = libdav1d_flush,
341 .receive_frame = libdav1d_receive_frame,
342 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
343 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_SETS_PKT_DTS,
344 .priv_class = &libdav1d_class,
345 .wrapper_name = "libdav1d",