FFmpeg
libdav1d.c
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1 /*
2  * Copyright (c) 2018 Ronald S. Bultje <rsbultje gmail com>
3  * Copyright (c) 2018 James Almer <jamrial gmail com>
4  *
5  * This file is part of FFmpeg.
6  *
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.
11  *
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.
16  *
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
20  */
21 
22 #include <dav1d/dav1d.h>
23 
24 #include "libavutil/avassert.h"
25 #include "libavutil/cpu.h"
28 #include "libavutil/imgutils.h"
29 #include "libavutil/opt.h"
30 
31 #include "atsc_a53.h"
32 #include "avcodec.h"
33 #include "bytestream.h"
34 #include "decode.h"
35 #include "internal.h"
36 
37 #define FF_DAV1D_VERSION_AT_LEAST(x,y) \
38  (DAV1D_API_VERSION_MAJOR > (x) || DAV1D_API_VERSION_MAJOR == (x) && DAV1D_API_VERSION_MINOR >= (y))
39 
40 typedef struct Libdav1dContext {
41  AVClass *class;
42  Dav1dContext *c;
43  /* This packet coincides with AVCodecInternal.in_pkt
44  * and is not owned by us. */
47  int pool_size;
48 
49  Dav1dData data;
56 
57 static const enum AVPixelFormat pix_fmt[][3] = {
58  [DAV1D_PIXEL_LAYOUT_I400] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12 },
59  [DAV1D_PIXEL_LAYOUT_I420] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12 },
60  [DAV1D_PIXEL_LAYOUT_I422] = { AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12 },
61  [DAV1D_PIXEL_LAYOUT_I444] = { AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12 },
62 };
63 
64 static const enum AVPixelFormat pix_fmt_rgb[3] = {
66 };
67 
68 static void libdav1d_log_callback(void *opaque, const char *fmt, va_list vl)
69 {
70  AVCodecContext *c = opaque;
71 
72  av_vlog(c, AV_LOG_ERROR, fmt, vl);
73 }
74 
75 static int libdav1d_picture_allocator(Dav1dPicture *p, void *cookie)
76 {
77  Libdav1dContext *dav1d = cookie;
78  enum AVPixelFormat format = pix_fmt[p->p.layout][p->seq_hdr->hbd];
79  int ret, linesize[4], h = FFALIGN(p->p.h, 128), w = FFALIGN(p->p.w, 128);
80  uint8_t *aligned_ptr, *data[4];
81  AVBufferRef *buf;
82 
83  ret = av_image_get_buffer_size(format, w, h, DAV1D_PICTURE_ALIGNMENT);
84  if (ret < 0)
85  return ret;
86 
87  if (ret != dav1d->pool_size) {
88  av_buffer_pool_uninit(&dav1d->pool);
89  // Use twice the amount of required padding bytes for aligned_ptr below.
90  dav1d->pool = av_buffer_pool_init(ret + DAV1D_PICTURE_ALIGNMENT * 2, NULL);
91  if (!dav1d->pool) {
92  dav1d->pool_size = 0;
93  return AVERROR(ENOMEM);
94  }
95  dav1d->pool_size = ret;
96  }
97  buf = av_buffer_pool_get(dav1d->pool);
98  if (!buf)
99  return AVERROR(ENOMEM);
100 
101  // libdav1d requires DAV1D_PICTURE_ALIGNMENT aligned buffers, which av_malloc()
102  // doesn't guarantee for example when AVX is disabled at configure time.
103  // Use the extra DAV1D_PICTURE_ALIGNMENT padding bytes in the buffer to align it
104  // if required.
105  aligned_ptr = (uint8_t *)FFALIGN((uintptr_t)buf->data, DAV1D_PICTURE_ALIGNMENT);
106  ret = av_image_fill_arrays(data, linesize, aligned_ptr, format, w, h,
107  DAV1D_PICTURE_ALIGNMENT);
108  if (ret < 0) {
109  av_buffer_unref(&buf);
110  return ret;
111  }
112 
113  p->data[0] = data[0];
114  p->data[1] = data[1];
115  p->data[2] = data[2];
116  p->stride[0] = linesize[0];
117  p->stride[1] = linesize[1];
118  p->allocator_data = buf;
119 
120  return 0;
121 }
122 
123 static void libdav1d_picture_release(Dav1dPicture *p, void *cookie)
124 {
125  AVBufferRef *buf = p->allocator_data;
126 
127  av_buffer_unref(&buf);
128 }
129 
130 static void libdav1d_init_params(AVCodecContext *c, const Dav1dSequenceHeader *seq)
131 {
132  c->profile = seq->profile;
133  c->level = ((seq->operating_points[0].major_level - 2) << 2)
134  | seq->operating_points[0].minor_level;
135 
136  switch (seq->chr) {
137  case DAV1D_CHR_VERTICAL:
138  c->chroma_sample_location = AVCHROMA_LOC_LEFT;
139  break;
140  case DAV1D_CHR_COLOCATED:
141  c->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
142  break;
143  }
144  c->colorspace = (enum AVColorSpace) seq->mtrx;
145  c->color_primaries = (enum AVColorPrimaries) seq->pri;
146  c->color_trc = (enum AVColorTransferCharacteristic) seq->trc;
147  c->color_range = seq->color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
148 
149  if (seq->layout == DAV1D_PIXEL_LAYOUT_I444 &&
150  seq->mtrx == DAV1D_MC_IDENTITY &&
151  seq->pri == DAV1D_COLOR_PRI_BT709 &&
152  seq->trc == DAV1D_TRC_SRGB)
153  c->pix_fmt = pix_fmt_rgb[seq->hbd];
154  else
155  c->pix_fmt = pix_fmt[seq->layout][seq->hbd];
156 
157  if (seq->num_units_in_tick && seq->time_scale) {
158  av_reduce(&c->framerate.den, &c->framerate.num,
159  seq->num_units_in_tick, seq->time_scale, INT_MAX);
160  if (seq->equal_picture_interval)
161  c->ticks_per_frame = seq->num_ticks_per_picture;
162  }
163 
164  if (seq->film_grain_present)
165  c->properties |= FF_CODEC_PROPERTY_FILM_GRAIN;
166  else
167  c->properties &= ~FF_CODEC_PROPERTY_FILM_GRAIN;
168 }
169 
171 {
172  Dav1dSequenceHeader seq;
173  size_t offset = 0;
174  int res;
175 
176  if (!c->extradata || c->extradata_size <= 0)
177  return 0;
178 
179  if (c->extradata[0] & 0x80) {
180  int version = c->extradata[0] & 0x7F;
181 
182  if (version != 1 || c->extradata_size < 4) {
183  int explode = !!(c->err_recognition & AV_EF_EXPLODE);
184  av_log(c, explode ? AV_LOG_ERROR : AV_LOG_WARNING,
185  "Error decoding extradata\n");
186  return explode ? AVERROR_INVALIDDATA : 0;
187  }
188 
189  // Do nothing if there are no configOBUs to parse
190  if (c->extradata_size == 4)
191  return 0;
192 
193  offset = 4;
194  }
195 
196  res = dav1d_parse_sequence_header(&seq, c->extradata + offset,
197  c->extradata_size - offset);
198  if (res < 0)
199  return 0; // Assume no seqhdr OBUs are present
200 
201  libdav1d_init_params(c, &seq);
202  res = ff_set_dimensions(c, seq.max_width, seq.max_height);
203  if (res < 0)
204  return res;
205 
206  return 0;
207 }
208 
210 {
211  Libdav1dContext *dav1d = c->priv_data;
212  Dav1dSettings s;
213 #if FF_DAV1D_VERSION_AT_LEAST(6,0)
214  int threads = c->thread_count;
215 #else
216  int threads = (c->thread_count ? c->thread_count : av_cpu_count()) * 3 / 2;
217 #endif
218  int res;
219 
220  dav1d->pkt = c->internal->in_pkt;
221 
222  av_log(c, AV_LOG_INFO, "libdav1d %s\n", dav1d_version());
223 
224  dav1d_default_settings(&s);
225  s.logger.cookie = c;
226  s.logger.callback = libdav1d_log_callback;
227  s.allocator.cookie = dav1d;
228  s.allocator.alloc_picture_callback = libdav1d_picture_allocator;
229  s.allocator.release_picture_callback = libdav1d_picture_release;
230  s.frame_size_limit = c->max_pixels;
231  if (dav1d->apply_grain >= 0)
232  s.apply_grain = dav1d->apply_grain;
233  else
234  s.apply_grain = !(c->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN);
235 
236  s.all_layers = dav1d->all_layers;
237  if (dav1d->operating_point >= 0)
238  s.operating_point = dav1d->operating_point;
239 #if FF_DAV1D_VERSION_AT_LEAST(6,2)
240  s.strict_std_compliance = c->strict_std_compliance > 0;
241 #endif
242 
243 #if FF_DAV1D_VERSION_AT_LEAST(6,0)
244  if (dav1d->frame_threads || dav1d->tile_threads)
245  s.n_threads = FFMAX(dav1d->frame_threads, dav1d->tile_threads);
246  else
247  s.n_threads = FFMIN(threads, DAV1D_MAX_THREADS);
248  s.max_frame_delay = (c->flags & AV_CODEC_FLAG_LOW_DELAY) ? 1 : 0;
249  av_log(c, AV_LOG_DEBUG, "Using %d threads, %d max_frame_delay\n",
250  s.n_threads, s.max_frame_delay);
251 #else
252  s.n_tile_threads = dav1d->tile_threads
253  ? dav1d->tile_threads
254  : FFMIN(floor(sqrt(threads)), DAV1D_MAX_TILE_THREADS);
255  s.n_frame_threads = dav1d->frame_threads
256  ? dav1d->frame_threads
257  : FFMIN(ceil(threads / s.n_tile_threads), DAV1D_MAX_FRAME_THREADS);
258  av_log(c, AV_LOG_DEBUG, "Using %d frame threads, %d tile threads\n",
259  s.n_frame_threads, s.n_tile_threads);
260 #endif
261 
263  if (res < 0)
264  return res;
265 
266  res = dav1d_open(&dav1d->c, &s);
267  if (res < 0)
268  return AVERROR(ENOMEM);
269 
270  return 0;
271 }
272 
274 {
275  Libdav1dContext *dav1d = c->priv_data;
276 
277  dav1d_data_unref(&dav1d->data);
278  dav1d_flush(dav1d->c);
279 }
280 
281 static void libdav1d_data_free(const uint8_t *data, void *opaque) {
282  AVBufferRef *buf = opaque;
283 
284  av_buffer_unref(&buf);
285 }
286 
287 static void libdav1d_user_data_free(const uint8_t *data, void *opaque) {
288  av_assert0(data == opaque);
289  av_free(opaque);
290 }
291 
293 {
294  Libdav1dContext *dav1d = c->priv_data;
295  Dav1dData *data = &dav1d->data;
296  Dav1dPicture pic = { 0 }, *p = &pic;
297 #if FF_DAV1D_VERSION_AT_LEAST(5,1)
298  enum Dav1dEventFlags event_flags = 0;
299 #endif
300  int res;
301 
302  if (!data->sz) {
303  AVPacket *const pkt = dav1d->pkt;
304 
305  res = ff_decode_get_packet(c, pkt);
306  if (res < 0 && res != AVERROR_EOF)
307  return res;
308 
309  if (pkt->size) {
310  res = dav1d_data_wrap(data, pkt->data, pkt->size,
312  if (res < 0) {
314  return res;
315  }
316 
317  data->m.timestamp = pkt->pts;
318  data->m.offset = pkt->pos;
319  data->m.duration = pkt->duration;
320 
321  pkt->buf = NULL;
323 
324  if (c->reordered_opaque != AV_NOPTS_VALUE) {
325  uint8_t *reordered_opaque = av_memdup(&c->reordered_opaque,
326  sizeof(c->reordered_opaque));
327  if (!reordered_opaque) {
328  dav1d_data_unref(data);
329  return AVERROR(ENOMEM);
330  }
331 
332  res = dav1d_data_wrap_user_data(data, reordered_opaque,
333  libdav1d_user_data_free, reordered_opaque);
334  if (res < 0) {
335  av_free(reordered_opaque);
336  dav1d_data_unref(data);
337  return res;
338  }
339  }
340  } else if (res >= 0) {
342  return AVERROR(EAGAIN);
343  }
344  }
345 
346  res = dav1d_send_data(dav1d->c, data);
347  if (res < 0) {
348  if (res == AVERROR(EINVAL))
349  res = AVERROR_INVALIDDATA;
350  if (res != AVERROR(EAGAIN))
351  return res;
352  }
353 
354  res = dav1d_get_picture(dav1d->c, p);
355  if (res < 0) {
356  if (res == AVERROR(EINVAL))
357  res = AVERROR_INVALIDDATA;
358  else if (res == AVERROR(EAGAIN) && c->internal->draining)
359  res = AVERROR_EOF;
360 
361  return res;
362  }
363 
364  av_assert0(p->data[0] && p->allocator_data);
365 
366  // This requires the custom allocator above
367  frame->buf[0] = av_buffer_ref(p->allocator_data);
368  if (!frame->buf[0]) {
369  dav1d_picture_unref(p);
370  return AVERROR(ENOMEM);
371  }
372 
373  frame->data[0] = p->data[0];
374  frame->data[1] = p->data[1];
375  frame->data[2] = p->data[2];
376  frame->linesize[0] = p->stride[0];
377  frame->linesize[1] = p->stride[1];
378  frame->linesize[2] = p->stride[1];
379 
380 #if FF_DAV1D_VERSION_AT_LEAST(5,1)
381  dav1d_get_event_flags(dav1d->c, &event_flags);
382  if (event_flags & DAV1D_EVENT_FLAG_NEW_SEQUENCE)
383 #endif
384  libdav1d_init_params(c, p->seq_hdr);
385  res = ff_decode_frame_props(c, frame);
386  if (res < 0)
387  goto fail;
388 
389  frame->width = p->p.w;
390  frame->height = p->p.h;
391  if (c->width != p->p.w || c->height != p->p.h) {
392  res = ff_set_dimensions(c, p->p.w, p->p.h);
393  if (res < 0)
394  goto fail;
395  }
396 
397  av_reduce(&frame->sample_aspect_ratio.num,
398  &frame->sample_aspect_ratio.den,
399  frame->height * (int64_t)p->frame_hdr->render_width,
400  frame->width * (int64_t)p->frame_hdr->render_height,
401  INT_MAX);
402  ff_set_sar(c, frame->sample_aspect_ratio);
403 
404  if (p->m.user_data.data)
405  memcpy(&frame->reordered_opaque, p->m.user_data.data, sizeof(frame->reordered_opaque));
406  else
407  frame->reordered_opaque = AV_NOPTS_VALUE;
408 
409  // match timestamps and packet size
410  frame->pts = p->m.timestamp;
411  frame->pkt_dts = p->m.timestamp;
412  frame->pkt_pos = p->m.offset;
413  frame->pkt_size = p->m.size;
414  frame->pkt_duration = p->m.duration;
415  frame->key_frame = p->frame_hdr->frame_type == DAV1D_FRAME_TYPE_KEY;
416 
417  switch (p->frame_hdr->frame_type) {
418  case DAV1D_FRAME_TYPE_KEY:
419  case DAV1D_FRAME_TYPE_INTRA:
420  frame->pict_type = AV_PICTURE_TYPE_I;
421  break;
422  case DAV1D_FRAME_TYPE_INTER:
423  frame->pict_type = AV_PICTURE_TYPE_P;
424  break;
425  case DAV1D_FRAME_TYPE_SWITCH:
426  frame->pict_type = AV_PICTURE_TYPE_SP;
427  break;
428  default:
429  res = AVERROR_INVALIDDATA;
430  goto fail;
431  }
432 
433  if (p->mastering_display) {
435  if (!mastering) {
436  res = AVERROR(ENOMEM);
437  goto fail;
438  }
439 
440  for (int i = 0; i < 3; i++) {
441  mastering->display_primaries[i][0] = av_make_q(p->mastering_display->primaries[i][0], 1 << 16);
442  mastering->display_primaries[i][1] = av_make_q(p->mastering_display->primaries[i][1], 1 << 16);
443  }
444  mastering->white_point[0] = av_make_q(p->mastering_display->white_point[0], 1 << 16);
445  mastering->white_point[1] = av_make_q(p->mastering_display->white_point[1], 1 << 16);
446 
447  mastering->max_luminance = av_make_q(p->mastering_display->max_luminance, 1 << 8);
448  mastering->min_luminance = av_make_q(p->mastering_display->min_luminance, 1 << 14);
449 
450  mastering->has_primaries = 1;
451  mastering->has_luminance = 1;
452  }
453  if (p->content_light) {
455  if (!light) {
456  res = AVERROR(ENOMEM);
457  goto fail;
458  }
459  light->MaxCLL = p->content_light->max_content_light_level;
460  light->MaxFALL = p->content_light->max_frame_average_light_level;
461  }
462  if (p->itut_t35) {
463  GetByteContext gb;
464  unsigned int user_identifier;
465 
466  bytestream2_init(&gb, p->itut_t35->payload, p->itut_t35->payload_size);
467  bytestream2_skip(&gb, 1); // terminal provider code
468  bytestream2_skip(&gb, 1); // terminal provider oriented code
469  user_identifier = bytestream2_get_be32(&gb);
470  switch (user_identifier) {
471  case MKBETAG('G', 'A', '9', '4'): { // closed captions
472  AVBufferRef *buf = NULL;
473 
474  res = ff_parse_a53_cc(&buf, gb.buffer, bytestream2_get_bytes_left(&gb));
475  if (res < 0)
476  goto fail;
477  if (!res)
478  break;
479 
481  av_buffer_unref(&buf);
482 
483  c->properties |= FF_CODEC_PROPERTY_CLOSED_CAPTIONS;
484  break;
485  }
486  default: // ignore unsupported identifiers
487  break;
488  }
489  }
490  if (p->frame_hdr->film_grain.present && (!dav1d->apply_grain ||
491  (c->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN))) {
493  if (!fgp) {
494  res = AVERROR(ENOMEM);
495  goto fail;
496  }
497 
499  fgp->seed = p->frame_hdr->film_grain.data.seed;
500  fgp->codec.aom.num_y_points = p->frame_hdr->film_grain.data.num_y_points;
501  fgp->codec.aom.chroma_scaling_from_luma = p->frame_hdr->film_grain.data.chroma_scaling_from_luma;
502  fgp->codec.aom.scaling_shift = p->frame_hdr->film_grain.data.scaling_shift;
503  fgp->codec.aom.ar_coeff_lag = p->frame_hdr->film_grain.data.ar_coeff_lag;
504  fgp->codec.aom.ar_coeff_shift = p->frame_hdr->film_grain.data.ar_coeff_shift;
505  fgp->codec.aom.grain_scale_shift = p->frame_hdr->film_grain.data.grain_scale_shift;
506  fgp->codec.aom.overlap_flag = p->frame_hdr->film_grain.data.overlap_flag;
507  fgp->codec.aom.limit_output_range = p->frame_hdr->film_grain.data.clip_to_restricted_range;
508 
509  memcpy(&fgp->codec.aom.y_points, &p->frame_hdr->film_grain.data.y_points,
510  sizeof(fgp->codec.aom.y_points));
511  memcpy(&fgp->codec.aom.num_uv_points, &p->frame_hdr->film_grain.data.num_uv_points,
512  sizeof(fgp->codec.aom.num_uv_points));
513  memcpy(&fgp->codec.aom.uv_points, &p->frame_hdr->film_grain.data.uv_points,
514  sizeof(fgp->codec.aom.uv_points));
515  memcpy(&fgp->codec.aom.ar_coeffs_y, &p->frame_hdr->film_grain.data.ar_coeffs_y,
516  sizeof(fgp->codec.aom.ar_coeffs_y));
517  memcpy(&fgp->codec.aom.ar_coeffs_uv[0], &p->frame_hdr->film_grain.data.ar_coeffs_uv[0],
518  sizeof(fgp->codec.aom.ar_coeffs_uv[0]));
519  memcpy(&fgp->codec.aom.ar_coeffs_uv[1], &p->frame_hdr->film_grain.data.ar_coeffs_uv[1],
520  sizeof(fgp->codec.aom.ar_coeffs_uv[1]));
521  memcpy(&fgp->codec.aom.uv_mult, &p->frame_hdr->film_grain.data.uv_mult,
522  sizeof(fgp->codec.aom.uv_mult));
523  memcpy(&fgp->codec.aom.uv_mult_luma, &p->frame_hdr->film_grain.data.uv_luma_mult,
524  sizeof(fgp->codec.aom.uv_mult_luma));
525  memcpy(&fgp->codec.aom.uv_offset, &p->frame_hdr->film_grain.data.uv_offset,
526  sizeof(fgp->codec.aom.uv_offset));
527  }
528 
529  res = 0;
530 fail:
531  dav1d_picture_unref(p);
532  if (res < 0)
534  return res;
535 }
536 
538 {
539  Libdav1dContext *dav1d = c->priv_data;
540 
541  av_buffer_pool_uninit(&dav1d->pool);
542  dav1d_data_unref(&dav1d->data);
543  dav1d_close(&dav1d->c);
544 
545  return 0;
546 }
547 
548 #ifndef DAV1D_MAX_FRAME_THREADS
549 #define DAV1D_MAX_FRAME_THREADS DAV1D_MAX_THREADS
550 #endif
551 #ifndef DAV1D_MAX_TILE_THREADS
552 #define DAV1D_MAX_TILE_THREADS DAV1D_MAX_THREADS
553 #endif
554 
555 #define OFFSET(x) offsetof(Libdav1dContext, x)
556 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
557 static const AVOption libdav1d_options[] = {
558  { "tilethreads", "Tile threads", OFFSET(tile_threads), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, DAV1D_MAX_TILE_THREADS, VD | AV_OPT_FLAG_DEPRECATED },
559  { "framethreads", "Frame threads", OFFSET(frame_threads), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, DAV1D_MAX_FRAME_THREADS, VD | AV_OPT_FLAG_DEPRECATED },
560  { "filmgrain", "Apply Film Grain", OFFSET(apply_grain), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VD | AV_OPT_FLAG_DEPRECATED },
561  { "oppoint", "Select an operating point of the scalable bitstream", OFFSET(operating_point), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 31, VD },
562  { "alllayers", "Output all spatial layers", OFFSET(all_layers), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
563  { NULL }
564 };
565 
566 static const AVClass libdav1d_class = {
567  .class_name = "libdav1d decoder",
568  .item_name = av_default_item_name,
569  .option = libdav1d_options,
570  .version = LIBAVUTIL_VERSION_INT,
571 };
572 
574  .name = "libdav1d",
575  .long_name = NULL_IF_CONFIG_SMALL("dav1d AV1 decoder by VideoLAN"),
576  .type = AVMEDIA_TYPE_VIDEO,
577  .id = AV_CODEC_ID_AV1,
578  .priv_data_size = sizeof(Libdav1dContext),
579  .init = libdav1d_init,
580  .close = libdav1d_close,
586  .priv_class = &libdav1d_class,
587  .wrapper_name = "libdav1d",
588 };
Libdav1dContext::c
Dav1dContext * c
Definition: libdav1d.c:42
av_vlog
void av_vlog(void *avcl, int level, const char *fmt, va_list vl)
Send the specified message to the log if the level is less than or equal to the current av_log_level.
Definition: log.c:424
AVMasteringDisplayMetadata::has_primaries
int has_primaries
Flag indicating whether the display primaries (and white point) are set.
Definition: mastering_display_metadata.h:62
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:424
Libdav1dContext::pool_size
int pool_size
Definition: libdav1d.c:47
AVCodec
AVCodec.
Definition: codec.h:202
av_buffer_pool_init
AVBufferPool * av_buffer_pool_init(size_t size, AVBufferRef *(*alloc)(size_t size))
Allocate and initialize a buffer pool.
Definition: buffer.c:280
ff_decode_get_packet
int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt)
Called by decoders to get the next packet for decoding.
Definition: decode.c:224
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
FF_CODEC_CAP_INIT_THREADSAFE
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:42
AVMasteringDisplayMetadata::max_luminance
AVRational max_luminance
Max luminance of mastering display (cd/m^2).
Definition: mastering_display_metadata.h:57
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
FF_CODEC_CAP_SETS_PKT_DTS
#define FF_CODEC_CAP_SETS_PKT_DTS
Decoders marked with FF_CODEC_CAP_SETS_PKT_DTS want to set AVFrame.pkt_dts manually.
Definition: internal.h:57
libdav1d_picture_allocator
static int libdav1d_picture_allocator(Dav1dPicture *p, void *cookie)
Definition: libdav1d.c:75
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
AVColorTransferCharacteristic
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:494
libdav1d_class
static const AVClass libdav1d_class
Definition: libdav1d.c:566
GetByteContext
Definition: bytestream.h:33
AVBufferPool
The buffer pool.
Definition: buffer_internal.h:89
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
AVBufferRef::data
uint8_t * data
The data buffer.
Definition: buffer.h:90
AV_FRAME_DATA_A53_CC
@ AV_FRAME_DATA_A53_CC
ATSC A53 Part 4 Closed Captions.
Definition: frame.h:58
AVMasteringDisplayMetadata::display_primaries
AVRational display_primaries[3][2]
CIE 1931 xy chromaticity coords of color primaries (r, g, b order).
Definition: mastering_display_metadata.h:42
AVMasteringDisplayMetadata::has_luminance
int has_luminance
Flag indicating whether the luminance (min_ and max_) have been set.
Definition: mastering_display_metadata.h:67
AVFilmGrainAOMParams::uv_points
uint8_t uv_points[2][10][2]
Definition: film_grain_params.h:63
AVContentLightMetadata::MaxCLL
unsigned MaxCLL
Max content light level (cd/m^2).
Definition: mastering_display_metadata.h:102
AVFilmGrainParams::aom
AVFilmGrainAOMParams aom
Definition: film_grain_params.h:236
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:317
w
uint8_t w
Definition: llviddspenc.c:38
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:597
internal.h
AVPacket::data
uint8_t * data
Definition: packet.h:373
AVOption
AVOption.
Definition: opt.h:247
data
const char data[16]
Definition: mxf.c:143
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:404
Libdav1dContext::pkt
AVPacket * pkt
Definition: libdav1d.c:45
libdav1d_user_data_free
static void libdav1d_user_data_free(const uint8_t *data, void *opaque)
Definition: libdav1d.c:287
AVPacket::duration
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:391
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
av_buffer_ref
AVBufferRef * av_buffer_ref(const AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:103
AVColorPrimaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:469
AVFilmGrainParams::seed
uint64_t seed
Seed to use for the synthesis process, if the codec allows for it.
Definition: film_grain_params.h:228
av_memdup
void * av_memdup(const void *p, size_t size)
Duplicate a buffer with av_malloc().
Definition: mem.c:311
init
static int init
Definition: av_tx.c:47
AVContentLightMetadata
Content light level needed by to transmit HDR over HDMI (CTA-861.3).
Definition: mastering_display_metadata.h:98
bytestream2_skip
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
Definition: bytestream.h:168
fail
#define fail()
Definition: checkasm.h:128
AVFilmGrainAOMParams::grain_scale_shift
int grain_scale_shift
Signals the down shift applied to the generated gaussian numbers during synthesis.
Definition: film_grain_params.h:99
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:420
libdav1d_init_params
static void libdav1d_init_params(AVCodecContext *c, const Dav1dSequenceHeader *seq)
Definition: libdav1d.c:130
libdav1d_init
static av_cold int libdav1d_init(AVCodecContext *c)
Definition: libdav1d.c:209
AV_CODEC_FLAG_LOW_DELAY
#define AV_CODEC_FLAG_LOW_DELAY
Force low delay.
Definition: avcodec.h:264
AVFilmGrainAOMParams::limit_output_range
int limit_output_range
Signals to clip to limited color levels after film grain application.
Definition: film_grain_params.h:122
Libdav1dContext::tile_threads
int tile_threads
Definition: libdav1d.c:50
AVFilmGrainAOMParams::num_y_points
int num_y_points
Number of points, and the scale and value for each point of the piecewise linear scaling function for...
Definition: film_grain_params.h:49
av_reduce
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:407
DAV1D_MAX_FRAME_THREADS
#define DAV1D_MAX_FRAME_THREADS
Definition: libdav1d.c:549
avassert.h
ceil
static __device__ float ceil(float a)
Definition: cuda_runtime.h:176
AVFilmGrainParams::codec
union AVFilmGrainParams::@295 codec
Additional fields may be added both here and in any structure included.
pkt
AVPacket * pkt
Definition: movenc.c:59
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
film_grain_params.h
av_cold
#define av_cold
Definition: attributes.h:90
av_buffer_pool_get
AVBufferRef * av_buffer_pool_get(AVBufferPool *pool)
Allocate a new AVBuffer, reusing an old buffer from the pool when available.
Definition: buffer.c:387
AVMasteringDisplayMetadata::white_point
AVRational white_point[2]
CIE 1931 xy chromaticity coords of white point.
Definition: mastering_display_metadata.h:47
s
#define s(width, name)
Definition: cbs_vp9.c:257
floor
static __device__ float floor(float a)
Definition: cuda_runtime.h:173
AV_CODEC_CAP_OTHER_THREADS
#define AV_CODEC_CAP_OTHER_THREADS
Codec supports multithreading through a method other than slice- or frame-level multithreading.
Definition: codec.h:127
av_film_grain_params_create_side_data
AVFilmGrainParams * av_film_grain_params_create_side_data(AVFrame *frame)
Allocate a complete AVFilmGrainParams and add it to the frame.
Definition: film_grain_params.c:31
GetByteContext::buffer
const uint8_t * buffer
Definition: bytestream.h:34
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
decode.h
Libdav1dContext
Definition: libdav1d.c:40
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
FF_CODEC_PROPERTY_FILM_GRAIN
#define FF_CODEC_PROPERTY_FILM_GRAIN
Definition: avcodec.h:1825
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:385
if
if(ret)
Definition: filter_design.txt:179
AVFilmGrainAOMParams::uv_mult_luma
int uv_mult_luma[2]
Definition: film_grain_params.h:106
ff_parse_a53_cc
int ff_parse_a53_cc(AVBufferRef **pbuf, const uint8_t *data, int size)
Parse a data array for ATSC A53 Part 4 Closed Captions and store them in an AVBufferRef.
Definition: atsc_a53.c:68
AVPacket::buf
AVBufferRef * buf
A reference to the reference-counted buffer where the packet data is stored.
Definition: packet.h:356
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
flush
static void flush(AVCodecContext *avctx)
Definition: aacdec_template.c:593
NULL
#define NULL
Definition: coverity.c:32
av_buffer_unref
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it.
Definition: buffer.c:139
AV_CODEC_ID_AV1
@ AV_CODEC_ID_AV1
Definition: codec_id.h:279
AVCHROMA_LOC_LEFT
@ AVCHROMA_LOC_LEFT
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
Definition: pixfmt.h:618
AVCHROMA_LOC_TOPLEFT
@ AVCHROMA_LOC_TOPLEFT
ITU-R 601, SMPTE 274M 296M S314M(DV 4:1:1), mpeg2 4:2:2.
Definition: pixfmt.h:620
receive_frame
static CopyRet receive_frame(AVCodecContext *avctx, AVFrame *frame, int *got_frame)
Definition: crystalhd.c:559
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
AV_PICTURE_TYPE_I
@ AV_PICTURE_TYPE_I
Intra.
Definition: avutil.h:274
av_buffer_pool_uninit
void av_buffer_pool_uninit(AVBufferPool **ppool)
Mark the pool as being available for freeing.
Definition: buffer.c:322
libdav1d_picture_release
static void libdav1d_picture_release(Dav1dPicture *p, void *cookie)
Definition: libdav1d.c:123
av_frame_new_side_data_from_buf
AVFrameSideData * av_frame_new_side_data_from_buf(AVFrame *frame, enum AVFrameSideDataType type, AVBufferRef *buf)
Add a new side data to a frame from an existing AVBufferRef.
Definition: frame.c:573
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:405
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
AV_EF_EXPLODE
#define AV_EF_EXPLODE
abort decoding on minor error detection
Definition: avcodec.h:1335
AV_PICTURE_TYPE_SP
@ AV_PICTURE_TYPE_SP
Switching Predicted.
Definition: avutil.h:279
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
bytestream2_get_bytes_left
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
Definition: bytestream.h:158
av_cpu_count
int av_cpu_count(void)
Definition: cpu.c:191
AVFilmGrainAOMParams::num_uv_points
int num_uv_points[2]
If chroma_scaling_from_luma is set to 0, signals the chroma scaling function parameters.
Definition: film_grain_params.h:62
FF_CODEC_CAP_AUTO_THREADS
#define FF_CODEC_CAP_AUTO_THREADS
Codec handles avctx->thread_count == 0 (auto) internally.
Definition: internal.h:81
Libdav1dContext::data
Dav1dData data
Definition: libdav1d.c:49
AVPacket::size
int size
Definition: packet.h:374
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
av_image_fill_arrays
int av_image_fill_arrays(uint8_t *dst_data[4], int dst_linesize[4], const uint8_t *src, enum AVPixelFormat pix_fmt, int width, int height, int align)
Setup the data pointers and linesizes based on the specified image parameters and the provided array.
Definition: imgutils.c:446
Libdav1dContext::pool
AVBufferPool * pool
Definition: libdav1d.c:46
libdav1d_log_callback
static void libdav1d_log_callback(void *opaque, const char *fmt, va_list vl)
Definition: libdav1d.c:68
cpu.h
pix_fmt_rgb
static enum AVPixelFormat pix_fmt_rgb[3]
Definition: libdav1d.c:64
libdav1d_receive_frame
static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
Definition: libdav1d.c:292
OFFSET
#define OFFSET(x)
Definition: libdav1d.c:555
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:409
av_make_q
static AVRational av_make_q(int num, int den)
Create an AVRational.
Definition: rational.h:71
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
MKBETAG
#define MKBETAG(a, b, c, d)
Definition: macros.h:56
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:411
AVFilmGrainParams
This structure describes how to handle film grain synthesis in video for specific codecs.
Definition: film_grain_params.h:216
format
ofilter format
Definition: ffmpeg_filter.c:172
av_image_get_buffer_size
int av_image_get_buffer_size(enum AVPixelFormat pix_fmt, int width, int height, int align)
Return the size in bytes of the amount of data required to store an image with the given parameters.
Definition: imgutils.c:466
av_content_light_metadata_create_side_data
AVContentLightMetadata * av_content_light_metadata_create_side_data(AVFrame *frame)
Allocate a complete AVContentLightMetadata and add it to the frame.
Definition: mastering_display_metadata.c:55
offset
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
Definition: writing_filters.txt:86
version
version
Definition: libkvazaar.c:313
AVFilmGrainAOMParams::ar_coeffs_y
int8_t ar_coeffs_y[24]
Luma auto-regression coefficients.
Definition: film_grain_params.h:80
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition: log.h:191
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:271
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:366
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:421
AVColorSpace
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:523
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
av_frame_unref
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:435
AVFilmGrainAOMParams::scaling_shift
int scaling_shift
Specifies the shift applied to the chroma components.
Definition: film_grain_params.h:69
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:209
AVMasteringDisplayMetadata
Mastering display metadata capable of representing the color volume of the display used to master the...
Definition: mastering_display_metadata.h:38
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition: pixfmt.h:580
Libdav1dContext::apply_grain
int apply_grain
Definition: libdav1d.c:52
avcodec.h
ret
ret
Definition: filter_design.txt:187
AVClass::class_name
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:71
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
atsc_a53.h
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:408
ff_set_sar
int ff_set_sar(AVCodecContext *avctx, AVRational sar)
Check that the provided sample aspect ratio is valid and set it on the codec context.
Definition: utils.c:101
ff_decode_frame_props
int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
Set various frame properties from the codec context / packet data.
Definition: decode.c:1489
AVCodecContext
main external API structure.
Definition: avcodec.h:383
AVFilmGrainAOMParams::ar_coeff_lag
int ar_coeff_lag
Specifies the auto-regression lag.
Definition: film_grain_params.h:74
av_mastering_display_metadata_create_side_data
AVMasteringDisplayMetadata * av_mastering_display_metadata_create_side_data(AVFrame *frame)
Allocate a complete AVMasteringDisplayMetadata and add it to the frame.
Definition: mastering_display_metadata.c:32
AVFilmGrainAOMParams::y_points
uint8_t y_points[14][2]
Definition: film_grain_params.h:50
AVFilmGrainAOMParams::uv_offset
int uv_offset[2]
Offset used for component scaling function.
Definition: film_grain_params.h:112
pix_fmt
static enum AVPixelFormat pix_fmt[][3]
Definition: libdav1d.c:57
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
AVFilmGrainAOMParams::uv_mult
int uv_mult[2]
Specifies the luma/chroma multipliers for the index to the component scaling function.
Definition: film_grain_params.h:105
AV_CODEC_CAP_DELAY
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: codec.h:82
AVMasteringDisplayMetadata::min_luminance
AVRational min_luminance
Min luminance of mastering display (cd/m^2).
Definition: mastering_display_metadata.h:52
FF_CODEC_PROPERTY_CLOSED_CAPTIONS
#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS
Definition: avcodec.h:1824
Libdav1dContext::frame_threads
int frame_threads
Definition: libdav1d.c:51
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
AVFilmGrainAOMParams::overlap_flag
int overlap_flag
Signals whether to overlap film grain blocks.
Definition: film_grain_params.h:117
libdav1d_options
static const AVOption libdav1d_options[]
Definition: libdav1d.c:557
AV_PICTURE_TYPE_P
@ AV_PICTURE_TYPE_P
Predicted.
Definition: avutil.h:275
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
libdav1d_flush
static void libdav1d_flush(AVCodecContext *c)
Definition: libdav1d.c:273
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
ff_set_dimensions
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:86
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:82
mastering_display_metadata.h
av_free
#define av_free(p)
Definition: tableprint_vlc.h:34
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
libdav1d_data_free
static void libdav1d_data_free(const uint8_t *data, void *opaque)
Definition: libdav1d.c:281
AVContentLightMetadata::MaxFALL
unsigned MaxFALL
Max average light level per frame (cd/m^2).
Definition: mastering_display_metadata.h:107
AVPacket
This structure stores compressed data.
Definition: packet.h:350
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:241
AVPacket::pos
int64_t pos
byte position in stream, -1 if unknown
Definition: packet.h:393
Libdav1dContext::operating_point
int operating_point
Definition: libdav1d.c:53
bytestream.h
imgutils.h
bytestream2_init
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
Definition: bytestream.h:137
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
Libdav1dContext::all_layers
int all_layers
Definition: libdav1d.c:54
h
h
Definition: vp9dsp_template.c:2038
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:386
AVFilmGrainAOMParams::chroma_scaling_from_luma
int chroma_scaling_from_luma
Signals whether to derive the chroma scaling function from the luma.
Definition: film_grain_params.h:56
AV_FILM_GRAIN_PARAMS_AV1
@ AV_FILM_GRAIN_PARAMS_AV1
The union is valid when interpreted as AVFilmGrainAOMParams (codec.aom)
Definition: film_grain_params.h:30
VD
#define VD
Definition: libdav1d.c:556
AVFilmGrainParams::type
enum AVFilmGrainParamsType type
Specifies the codec for which this structure is valid.
Definition: film_grain_params.h:220
ff_libdav1d_decoder
const AVCodec ff_libdav1d_decoder
Definition: libdav1d.c:573
DAV1D_MAX_TILE_THREADS
#define DAV1D_MAX_TILE_THREADS
Definition: libdav1d.c:552
AV_CODEC_EXPORT_DATA_FILM_GRAIN
#define AV_CODEC_EXPORT_DATA_FILM_GRAIN
Decoding only.
Definition: avcodec.h:356
libdav1d_parse_extradata
static av_cold int libdav1d_parse_extradata(AVCodecContext *c)
Definition: libdav1d.c:170
AVFilmGrainAOMParams::ar_coeff_shift
int ar_coeff_shift
Specifies the range of the auto-regressive coefficients.
Definition: film_grain_params.h:93
libdav1d_close
static av_cold int libdav1d_close(AVCodecContext *c)
Definition: libdav1d.c:537
AV_OPT_FLAG_DEPRECATED
#define AV_OPT_FLAG_DEPRECATED
set if option is deprecated, users should refer to AVOption.help text for more information
Definition: opt.h:294
AVFilmGrainAOMParams::ar_coeffs_uv
int8_t ar_coeffs_uv[2][25]
Chroma auto-regression coefficients.
Definition: film_grain_params.h:86